CN106162116A

CN106162116A - Projection display system and control method thereof

Info

Publication number: CN106162116A
Application number: CN201510165839.5A
Authority: CN
Inventors: 胡飞; 郭祖强
Original assignee: Appotronics Corp Ltd
Current assignee: Shenzhen Appotronics Corp Ltd; Shenzhen Appotronics Technology Co Ltd
Priority date: 2015-04-09
Filing date: 2015-04-09
Publication date: 2016-11-23
Anticipated expiration: 2035-04-09
Also published as: WO2016161933A1; CN106162116B

Abstract

The present invention is applicable to the field of optical technology, and provides a projection display device and its control method. The projection display device includes a spatial light modulation device and a light emitting device capable of emitting sequential light. A fluorescent light, at least one first laser in the at least one sequential laser light and at least one first fluorescent light in the sequential at least one fluorescent light have spectral overlap; a control device connected to the spatial light modulation device, the control device includes a first control unit , for converting at least one primary color image signal in the decoded source image signal corresponding to the first laser light and the first fluorescent light with overlapping spectra into a first primary color control signal and a second primary color control signal, and passing the first primary color The control signal and the second primary color control signal control the spatial light modulation device to modulate the first laser light and the first fluorescent light respectively. The invention can improve the light efficiency of the first fluorescent light and the first laser light, and further improve the brightness of the projection display device.

Description

Projection display system and control method thereof

技术领域technical field

本发明涉及光学技术领域，更具体地说，涉及投影显示系统及其控制方法。The present invention relates to the field of optical technology, more specifically, to a projection display system and a control method thereof.

背景技术Background technique

目前，空间光调制装置(如DMD，LCOS，LCD等)在投影显示领域获得了广泛的应用，其中DMD由于其响应速度快，从而可以用时序切换的基色光来实现彩色投影显示，由此使得单片式DMD投影显示设备成为一种较为成熟的技术。单片式DMD投影显示设备以其结构简单，成本较低，在中低端市场广泛应用。在投影显示设备的发光装置方面，现有技术提供了一种激光激发波长转换装置而出射不同颜色光的发光装置，该发光装置具有光效高，光学扩展量小的优势，因此发展迅速，成为投影显示设备的发光装置的理想选择。At present, spatial light modulation devices (such as DMD, LCOS, LCD, etc.) have been widely used in the field of projection display, where DMD can realize color projection display with time-sequentially switched primary color light due to its fast response speed, thus making Single-chip DMD projection display equipment has become a relatively mature technology. The single-chip DMD projection display device is widely used in the middle and low-end market because of its simple structure and low cost. In terms of light-emitting devices for projection display equipment, the prior art provides a light-emitting device that excites a wavelength conversion device with a laser to emit light of different colors. This light-emitting device has the advantages of high light efficiency and small etendue, so it develops rapidly and has become Ideal for lighting fixtures for projection display equipment.

请参阅图1，为现有技术提供的单片式DLP投影显示设备的简化结构图，该投影显示设备包括发光装置11，光处理装置12，空间光调制装置13，控制装置14以及投影镜头15。其中：Please refer to FIG. 1 , which is a simplified structural diagram of a single-chip DLP projection display device provided in the prior art. The projection display device includes a light emitting device 11 , a light processing device 12 , a spatial light modulation device 13 , a control device 14 and a projection lens 15 . in:

发光装置11包括激光光源101，收集透镜102以及波长转换装置103。其中激光光源101可以为紫外光或者蓝光激光光源。收集透镜102将激光光源101发出的激光收集并入射至波长转换装置103。波长转换装置103在激光光源101发出的激光的照射下出射时序的颜色光。该光处理装置12包括收集透镜104，匀光组件105，光中继组件106以及TIR棱镜107。发光装置11发出的光经光处理装置12进行处理后入射至空间光调制装置13，如DMD等，空间光调至装置13在控制装置14的控制下对经光处理装置12处理后入射的光进行调制，并经光处理装置12出射至投影镜头15。其中波长转换装置103在激光光源101发出的激光的照射下出射时序的蓝、绿、红光。The light emitting device 11 includes a laser light source 101 , a collecting lens 102 and a wavelength converting device 103 . Wherein the laser light source 101 may be an ultraviolet or blue laser light source. The collecting lens 102 collects the laser light emitted by the laser light source 101 and enters the wavelength converting device 103 . The wavelength conversion device 103 emits time-sequential color light under the irradiation of the laser light emitted by the laser light source 101 . The light processing device 12 includes a collecting lens 104 , a uniform light component 105 , a light relay component 106 and a TIR prism 107 . The light emitted by the light-emitting device 11 is processed by the light processing device 12 and then incident on the spatial light modulation device 13, such as DMD. Modulated, and output to the projection lens 15 through the light processing device 12 . Wherein the wavelength conversion device 103 emits sequential blue, green and red light under the irradiation of the laser light emitted by the laser light source 101 .

在上述的投影显示设备的发光装置中，一般采用红光波长转换材料或者橙光波长转换材料来产生红光，由于红光波长转换材料或者橙光波长转换材料的激发效率较低，且为了达到所需纯度的红光，还需要采用滤光片对产生的红光或者橙光进行短波长过滤处理，从而进一步降低了红光的效率，导致采用上述发光装置的投影显示设备的红光的色坐标与色域标准(REC.709或者DCI)相比存在差距。In the light-emitting device of the above-mentioned projection display device, red light wavelength conversion material or orange light wavelength conversion material is generally used to generate red light, because the excitation efficiency of red light wavelength conversion material or orange light wavelength conversion material is low, and in order to achieve For red light with the required purity, it is also necessary to use a filter to filter the generated red or orange light with a short wavelength, thereby further reducing the efficiency of the red light, resulting in the color of the red light of the projection display device using the above-mentioned light emitting device. There is a gap between the coordinates and the color gamut standard (REC.709 or DCI).

为了改善该问题，现有技术提供了一种投影显示设备用的改进发光装置，该发光装置通过添加红激光，将该红激光与红光波长转换材料产生的红光或者橙光波长转换材料产生的橙光合光，从而改善红光的效率、亮度以及色坐标，同时激光的散斑也在可以接受的范围内。基于该改进发光装置的投影显示设备的控制方法如下：将红激光和橙光波长转换材料产生的橙光作为两种基色光，分别对应于相互独立的两种基色控制信号，通过该相互独立的两种基色控制信号控制空间光调制装置分别对红激光和橙光波长转换材料产生的橙光进行调制。现有技术由于将红激光与橙光波长转换材料产生的橙光作为两种基色光，从而使得投影显示设备所需的红光均由红激光提供，不仅导致亮度不够，同时会出现非常严重的散斑现象。In order to improve this problem, the prior art provides an improved light-emitting device for projection display equipment. The light-emitting device generates red light or orange light wavelength conversion material by adding red laser light and red light wavelength conversion material. The orange photosynthetic light improves the efficiency, brightness and color coordinates of the red light, and the speckle of the laser is also within an acceptable range. The control method of the projection display device based on the improved light-emitting device is as follows: the orange light generated by the red laser light and the orange light wavelength conversion material are used as two primary color lights, which correspond to the two independent primary color control signals respectively, through the mutually independent The two primary color control signals control the spatial light modulation device to modulate the red laser light and the orange light generated by the orange light wavelength conversion material respectively. In the prior art, the red laser and the orange light produced by the orange wavelength conversion material are used as the two primary colors, so that the red light required by the projection display device is provided by the red laser, which not only leads to insufficient brightness, but also causes very serious problems. speckle phenomenon.

发明内容Contents of the invention

有鉴于此，本发明提供了一种投影显示设备的控制方法及投影显示设备，以解决现有技术存在的在控制激光与荧光合光时存在的亮度低、散斑现象严重的问题。In view of this, the present invention provides a control method of a projection display device and a projection display device to solve the problems of low brightness and serious speckle phenomenon existing in the prior art when controlling the combination of laser light and fluorescent light.

第一方面，提供一种投影显示系统的控制方法，所述投影显示系统包括空间光调制装置以及可出射时序光的发光装置，所述时序光包括时序的至少一激光和时序的至少一荧光，所述时序的至少一激光中的至少一第一激光与所述时序的至少一荧光中的至少一第一荧光存在光谱重叠，所述控制方法包括：In a first aspect, a method for controlling a projection display system is provided. The projection display system includes a spatial light modulation device and a light emitting device capable of emitting time-sequential light, and the time-sequential light includes at least one laser light in time sequence and at least one fluorescent light in time sequence. There is spectral overlap between at least one first laser in the at least one laser in the time sequence and at least one first fluorescent light in the at least one fluorescent light in the time sequence, and the control method includes:

获取解码后的源图像信号中各基色图像信号；Obtaining each primary color image signal in the decoded source image signal;

将所述解码后的源图像信号转换为调制控制信号，并通过所述调制控制信号控制所述空间光调制装置对所述时序光进行调制，其中将所述解码后的源图像信号转换为调制控制信号并通过所述调制控制信号控制所述空间光调制装置对所述时序光进行调制具体包括：converting the decoded source image signal into a modulation control signal, and controlling the spatial light modulation device to modulate the sequential light through the modulation control signal, wherein the decoded source image signal is converted into a modulated Controlling the signal and controlling the spatial light modulation device to modulate the time-sequential light through the modulation control signal specifically includes:

将所述解码后的源图像信号中与存在光谱重叠的所述第一激光和第一荧光对应的至少一种基色图像信号转换成第一基色控制信号和第二基色控制信号，并通过所述第一基色控制信号和所述第二基色控制信号控制所述空间光调制装置分别对存在光谱重叠的所述第一激光和所述第一荧光进行调制；converting at least one primary color image signal in the decoded source image signal corresponding to the first laser light and the first fluorescent light with overlapping spectra into a first primary color control signal and a second primary color control signal, and passing the The first primary color control signal and the second primary color control signal control the spatial light modulation device to respectively modulate the first laser light and the first fluorescent light with overlapping spectra;

其中存在光谱重叠的所述第一激光和所述第一荧光混合后的亮度与解码后的源图像信号中的对应基色图像信号的亮度相同，存在光谱重叠的所述第一激光和所述第一荧光混合后的色坐标与解码后的源图像信号中的对应基色图像信号的色坐标相同。The mixed brightness of the first laser light and the first fluorescent light with spectral overlap is the same as the brightness of the corresponding primary color image signal in the decoded source image signal, and the first laser light and the first fluorescent light with spectral overlap are the same. The color coordinates of the mixed fluorescent light are the same as the color coordinates of the corresponding primary color image signal in the decoded source image signal.

优选的，所述将所述解码后的源图像信号中与存在光谱重叠的所述第一激光和第一荧光对应的至少一种基色图像信号转换成第一基色控制信号和第二基色控制信号具体包括：Preferably, in the decoded source image signal, at least one primary color image signal corresponding to the first laser light and the first fluorescent light with spectral overlap is converted into a first primary color control signal and a second primary color control signal Specifically include:

将解码后的源图像信号中的至少一种基色图像信号转换成第一基色控制信号和第二基色控制信号，其中所述第一基色控制信号和所述第二基色控制信号满足如下要求：converting at least one primary color image signal in the decoded source image signal into a first primary color control signal and a second primary color control signal, wherein the first primary color control signal and the second primary color control signal meet the following requirements:

$\frac{a a}{K K} {L L}_{C C 11}^{,,} = = \frac{a a 11}{K K} {L L}_{C C 1111} + + \frac{a a 22}{K K} {L L}_{C C 1212}$

$x x = = \frac{\frac{{x x}_{11}}{{y the y}_{11}} \cdot &Center Dot; \frac{a a 11}{K K} \cdot &Center Dot; {L L}_{C C 1111} + + \frac{{x x}_{22}}{{y the y}_{22}} \cdot &Center Dot; \frac{a a 22}{K K} \cdot &Center Dot; {L L}_{C C 1212}}{\frac{11}{{y the y}_{11}} \cdot &Center Dot; \frac{a a 11}{K K} \cdot &Center Dot; {L L}_{C C 1111} + + \frac{11}{{y the y}_{22}} \cdot &Center Dot; \frac{a a 22}{K K} \cdot &Center Dot; {L L}_{C C 1212}}$

$y the y = = \frac{\frac{a a 11}{K K} \cdot &Center Dot; {L L}_{C C 1111} + + \frac{a a 22}{K K} \cdot &Center Dot; {L L}_{C C 1212}}{\frac{11}{{y the y}_{11}} \cdot &Center Dot; \frac{a a 11}{K K} \cdot &Center Dot; {L L}_{C C 1111} + + \frac{11}{{y the y}_{22}} \cdot &Center Dot; \frac{a a 22}{K K} \cdot &Center Dot; {L L}_{C C 1212}}$

其中，L_C1’为存在光谱重叠的所述第一激光和所述第一荧光均全开时的亮度，L_C11为存在光谱重叠的所述第一激光全开时的亮度，L_C12为存在光谱重叠的所述第一荧光全开时的亮度，C1、C11、C12均为基色光标识；Among them, L _C1 ' is the brightness when both the first laser and the first fluorescent light with spectral overlap are fully on, L _C11 is the brightness when the first laser with spectral overlap is fully on, and L _C12 is the brightness of the first laser with spectral overlap. The brightness of the first fluorescent light with overlapping spectra when fully on, C1, C11, and C12 are all primary color light marks;

所述(x，y)为存在光谱重叠的所述第一激光和所述第一荧光均全开时的色坐标，(x1，y1)为存在光谱重叠的所述第一激光全开时的色坐标，(x2，y2)为存在光谱重叠的所述第一荧光全开时的色坐标；The (x, y) is the color coordinates when both the first laser light and the first fluorescent light with spectral overlap are fully turned on, and (x1, y1) is the color coordinate when the first laser light with spectral overlap is fully turned on Color coordinates, (x2, y2) are the color coordinates when the first fluorescent light is fully on with spectral overlap;

a为所述解码后的源图像信号中与存在光谱重叠的所述第一激光和第一荧光对应的基色图像信号，所述a1为所述第一基色控制信号，所述a2为所述第二基色控制信号，且a、a1、a2均为大于或等于0且小于或等于K的整数，所述K为所述空间光调制装置所能达到的最大灰度值。a is the primary color image signal in the decoded source image signal corresponding to the first laser light and the first fluorescent light with spectral overlap, the a1 is the first primary color control signal, and the a2 is the first primary color image signal Two primary color control signals, and a, a1, and a2 are all integers greater than or equal to 0 and less than or equal to K, where K is the maximum gray value that the spatial light modulation device can achieve.

优选的，所述a1和a2相等，且均等于a，或者所述a1和a2不相等。Preferably, the a1 and a2 are equal and equal to a, or the a1 and a2 are not equal.

优选的，所述第一激光为红激光，所述第一荧光为橙光波长转换材料受激发出的橙光，所述至少一种基色图像信号包括红基色图像信号，所述第一基色控制信号为第一红基色控制信号，所述第二基色控制信号为第二红基色控制信号，和/或，Preferably, the first laser is a red laser, the first fluorescence is orange light emitted by an orange wavelength conversion material, the at least one primary color image signal includes a red primary color image signal, and the first primary color controls The signal is a first primary red control signal, and the second primary color control signal is a second primary red control signal, and/or,

所述第一激光为青绿激光，所述第一荧光为绿光波长转换材料受激发出的绿光，所述至少一种基色图像信号包括绿基色图像信号，所述第一基色控制信号为第一绿基色控制信号，所述第二基色控制信号为第二绿基色控制信号。The first laser is a cyan laser, the first fluorescence is green light emitted by a green wavelength conversion material, the at least one primary color image signal includes a green primary color image signal, and the first primary color control signal is the first A green primary color control signal, the second primary color control signal is a second green primary color control signal.

优选的，所述时序的至少一荧光包括时序的且存在光谱重叠的第二荧光和第三荧光，所述将所述解码后的源图像信号转换为调制控制信号还包括：Preferably, the at least one fluorescent light in time sequence includes a second fluorescent light and a third fluorescent light that are time-sequential and have overlapping spectra, and converting the decoded source image signal into a modulation control signal further includes:

将解码后的源图像信号中的与存在光谱重叠的所述第二荧光和第三荧光对应的至少一种基色图像信号转换成第三基色控制信号和第四基色控制信号，并通过所述第三基色控制信号和所述第四基色控制信号控制所述空间光调制装置分别对存在光谱重叠的所述第二荧光和所述第三荧光进行调制；converting at least one primary color image signal in the decoded source image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap into a third primary color control signal and a fourth primary color control signal, and passing the first The three primary color control signals and the fourth primary color control signal control the spatial light modulation device to respectively modulate the second fluorescent light and the third fluorescent light with overlapping spectra;

其中存在光谱重叠的所述第二荧光和所述第三荧光混合后的亮度与解码后的源图像信号中的与存在光谱重叠的所述第二荧光和第三荧光对应基色图像信号的亮度相同。The mixed brightness of the second fluorescent light and the third fluorescent light with spectral overlap is the same as the brightness of the primary color image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlapping in the decoded source image signal .

优选的，所述将解码后的源图像信号中的与存在光谱重叠的所述第二荧光和第三荧光对应的至少一种基色图像信号转换成第三基色控制信号和第四基色控制信号具体包括：Preferably, said converting at least one primary color image signal in the decoded source image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap into a third primary color control signal and a fourth primary color control signal specifically include:

将解码后的源图像信号中的与存在光谱重叠的所述第二荧光和第三荧光对应的至少一种基色图像信号转换成第三基色控制信号和第四基色控制信号，其中所述第三基色控制信号和所述第四基色控制信号满足如下要求：converting at least one primary color image signal in the decoded source image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap into a third primary color control signal and a fourth primary color control signal, wherein the third primary color The primary color control signal and the fourth primary color control signal meet the following requirements:

$\frac{b b}{K K} {L L}_{C C 22}^{,,} = = \frac{b b 11}{K K} {L L}_{C C 21 twenty one} + + \frac{b b 22}{K K} {L L}_{C C 22 twenty two};;$

其中L_C2’为存在光谱重叠的所述第二荧光和所述第三荧光均全开时的亮度，L_C21为存在光谱重叠的所述第二荧光全开时的亮度，L_C22为存在光谱重叠的所述第三荧光全开时的亮度，C2、C21、C22均为基色光标识；Wherein L _C2 ' is the brightness when the second fluorescent light with spectral overlap and the third fluorescent light are fully on, L _C21 is the brightness when the second fluorescent light with spectral overlap is fully on, and L _C22 is the existing spectrum The brightness of the overlapped third fluorescent lights when they are fully on, C2, C21, and C22 are all primary color light marks;

b为所述解码后的源图像信号中的与存在光谱重叠的所述第二荧光和第三荧光对应的基色图像信号，所述b1为所述第三基色控制信号，所述b2为所述第四基色控制信号，且b、b1、b2均为大于或等于0且小于或等于K的整数，所述K为所述空间光调制装置所能达到的最大灰度值。b is the primary color image signal in the decoded source image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap, the b1 is the third primary color control signal, and the b2 is the The fourth primary color control signal, and b, b1, and b2 are all integers greater than or equal to 0 and less than or equal to K, where K is the maximum grayscale value that the spatial light modulation device can achieve.

优选的，所述L_C21和L_C22相等或者不等。Preferably, the _LC21 and _LC22 are equal or unequal.

优选的，所述存在光谱重叠的第二荧光和第三荧光均为绿光波长转换材料受激后出射的绿光，所述至少一种基色图像信号为绿基色图像信号。Preferably, both the second fluorescent light and the third fluorescent light with overlapping spectra are green light emitted by the green light wavelength conversion material after being excited, and the at least one primary color image signal is a green primary color image signal.

第二方面，提供一种投影显示系统的控制方法，所述投影显示系统包括空间光调制装置以及可出射时序光的发光装置，所述时序光包括时序的至少一激光和时序的至少一荧光，所述时序的至少一激光中的至少一第一激光与所述时序的至少一荧光中的至少一第一荧光存在光谱重叠，所述控制方法包括：In a second aspect, a method for controlling a projection display system is provided. The projection display system includes a spatial light modulation device and a light emitting device capable of emitting sequential light, the sequential light includes at least one laser and at least one fluorescent light in sequence, There is spectral overlap between at least one first laser in the at least one laser in the time sequence and at least one first fluorescent light in the at least one fluorescent light in the time sequence, and the control method includes:

将解码后的源图像信号转换为调制控制信号，并通过所述调制控制信号控制所述空间光调制装置对发光装置出射的所述时序光进行调制；converting the decoded source image signal into a modulation control signal, and controlling the spatial light modulation device to modulate the sequential light emitted by the light emitting device through the modulation control signal;

根据预设的与存在光谱重叠的所述第一激光和所述第一荧光对应的基色光的目标色坐标，将所述第一荧光全部用于对所述第一激光进行校正。According to the preset target color coordinates of the primary color light corresponding to the first laser light and the first fluorescent light with overlapping spectra, all the first fluorescent light is used to correct the first laser light.

优选的，所述将解码后的源图像信号转换为调制控制信号，并通过所述调制控制信号控制所述空间光调制装置对发光装置出射的所述时序光进行调制具体包括：Preferably, converting the decoded source image signal into a modulation control signal, and controlling the spatial light modulation device to modulate the sequential light emitted by the light emitting device through the modulation control signal specifically includes:

将解码后的源图像信号转换为包括第一基色调制信号和第二基色调制信号的调制控制信号，并通过第一基色调制信号和第二基色调制信号控制空间光调制装置分别对存在光谱重叠的第一激光和第一荧光进行调制。Converting the decoded source image signal into a modulation control signal including the first primary color modulation signal and the second primary color modulation signal, and controlling the spatial light modulation device to control the spectral overlapping by the first primary color modulation signal and the second primary color modulation signal respectively The first laser light and the first fluorescent light are modulated.

第三方面，提供一种投影显示系统，包括空间光调制装置，还包括：In a third aspect, a projection display system is provided, including a spatial light modulation device, and further including:

可出射时序光的发光装置，所述时序光包括时序的至少一激光和时序的至少一荧光，所述时序的至少一激光中的至少一第一激光与所述时序的至少一荧光中的至少一第一荧光存在光谱重叠；A light-emitting device capable of emitting time-sequential light, the time-sequential light includes at least one laser light of time sequence and at least one fluorescent light of time sequence, at least one first laser in the at least one laser light of time sequence and at least one of the at least one fluorescent light of time sequence - There is spectral overlap of the first fluorescent light;

与空间光调制装置连接的控制装置，所述控制装置将解码后的源图像信号转换为调制控制信号，并通过所述调制控制信号控制所述空间光调制装置对所述时序光进行调制，所述控制装置包括：A control device connected to the spatial light modulation device, the control device converts the decoded source image signal into a modulation control signal, and controls the spatial light modulation device to modulate the time-sequential light through the modulation control signal, the The control devices include:

第一控制单元，用于将所述解码后的源图像信号中与存在光谱重叠的所述第一激光和第一荧光对应的至少一种基色图像信号转换成第一基色控制信号和第二基色控制信号，并通过所述第一基色控制信号和所述第二基色控制信号控制所述空间光调制装置分别对存在光谱重叠的所述第一激光和所述第一荧光进行调制；A first control unit, configured to convert at least one primary color image signal in the decoded source image signal corresponding to the first laser light and the first fluorescent light with overlapping spectra into a first primary color control signal and a second primary color control signal, and control the spatial light modulation device to modulate the first laser light and the first fluorescent light with overlapping spectra respectively through the first primary color control signal and the second primary color control signal;

其中存在光谱重叠的所述第一激光和所述第一荧光混合后的亮度与解码后的源图像信号中的对应基色图像信号的亮度相同，存在光谱重叠的所述第一激光和所述第一荧光混合后的色坐标与解码后的源图像信号中的对应基色图像信号的色坐标相同。The mixed brightness of the first laser light and the first fluorescent light with spectral overlap is the same as the brightness of the corresponding primary color image signal in the decoded source image signal, and the first laser light and the first fluorescent light with spectral overlap are the same. The color coordinates of a mixed fluorescent light are the same as the color coordinates of the corresponding primary color image signal in the decoded source image signal.

优选的，所述第一控制单元包括：Preferably, the first control unit includes:

第一信号转换模块，用于将解码后的源图像信号中的至少一种基色图像信号转换成第一基色控制信号和第二基色控制信号，其中所述第一基色控制信号和所述第二基色控制信号满足如下要求：The first signal conversion module is configured to convert at least one primary color image signal in the decoded source image signal into a first primary color control signal and a second primary color control signal, wherein the first primary color control signal and the second primary color control signal The primary color control signal meets the following requirements:

优选的，所述时序的至少一荧光包括时序的且存在光谱重叠的第二荧光和第三荧光，所述控制装置还包括：Preferably, the at least one fluorescent light of the time sequence includes the second fluorescent light and the third fluorescent light of the temporal sequence with overlapping spectra, and the control device further includes:

第二控制单元，用于将解码后的源图像信号中的与存在光谱重叠的所述第二荧光和第三荧光对应的至少一种基色图像信号转换成第三基色控制信号和第四基色控制信号，并通过所述第三基色控制信号和所述第四基色控制信号控制所述空间光调制装置分别对存在光谱重叠的所述第二荧光和所述第三荧光进行调制；The second control unit is configured to convert at least one primary color image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap in the decoded source image signal into a third primary color control signal and a fourth primary color control signal signal, and control the spatial light modulation device to modulate the second fluorescent light and the third fluorescent light with overlapping spectra through the third primary color control signal and the fourth primary color control signal;

其中存在光谱重叠的所述第二荧光和所述第三荧光混合后的亮度与解码后的源图像信号中的与存在光谱重叠的所述第二荧光和第三荧光对应的基色图像信号的亮度相同。Wherein, the mixed brightness of the second fluorescent light and the third fluorescent light with spectral overlapping is the same as the brightness of the primary color image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlapping in the decoded source image signal same.

优选的，所述第二控制单元包括：Preferably, the second control unit includes:

第二信号转换单元，用于将解码后的源图像信号中的与存在光谱重叠的所述第二荧光和第三荧光对应的至少一种基色图像信号转换成第三基色控制信号和第四基色控制信号，其中所述第三基色控制信号和所述第四基色控制信号满足如下要求：The second signal conversion unit is configured to convert at least one primary color image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap in the decoded source image signal into a third primary color control signal and a fourth primary color Control signals, wherein the third primary color control signal and the fourth primary color control signal meet the following requirements:

第四方面，提供一种投影显示系统，包括空间光调制装置，还包括：In a fourth aspect, a projection display system is provided, including a spatial light modulation device, and further including:

与空间光调制装置连接的控制装置，所述控制装置将解码后的源图像信号转换为调制控制信号，并通过所述调制控制信号控制所述空间光调制装置对发光装置出射的所述时序光进行调制，并根据预设的与存在光谱重叠的所述第一激光和所述第一荧光对应的基色光的目标色坐标，将所述第一荧光全部用于对所述第一激光进行校正。A control device connected to the spatial light modulation device, the control device converts the decoded source image signal into a modulation control signal, and controls the sequential light emitted by the spatial light modulation device to the light emitting device through the modulation control signal performing modulation, and using all of the first fluorescent light to correct the first laser light according to the preset target color coordinates of the primary color light corresponding to the first laser light and the first fluorescent light with overlapping spectra .

优选的，所述控制装置具体用于将解码后的源图像信号转换为包括第一基色调制信号和第二基色调制信号的调制控制信号，并通过第一基色调制信号和第二基色调制信号控制空间光调制装置分别对存在光谱重叠的第一激光和第一荧光进行调制。Preferably, the control device is specifically configured to convert the decoded source image signal into a modulation control signal including a first primary color modulation signal and a second primary color modulation signal, and control The spatial light modulation device respectively modulates the first laser light and the first fluorescent light with overlapping spectra.

与现有技术相比，本发明所提供的技术方案具有以下优点：Compared with the prior art, the technical solution provided by the present invention has the following advantages:

本发明通过将解码后的源图像信号中的照烧一种基色图像信号转换成第一基色控制信号和第二基色控制信号，并通过该第一基色控制信号和第二基色控制信号控制空间光调至装置分别对可发出时序光的发光装置发出的存在光谱重叠的第一激光和第一荧光进行调制，实现第一激光和第一荧光时序合光，且将第一激光和第一荧光的时序合光作为一种基色光，从而提高投影显示设备中第一荧光和第一激光的光效，提高亮度。The present invention converts a primary color image signal in the decoded source image signal into a first primary color control signal and a second primary color control signal, and controls the spatial light through the first primary color control signal and the second primary color control signal. The adjusting device respectively modulates the first laser light and the first fluorescent light emitted by the light-emitting device capable of emitting time-sequential light with overlapping spectra, so as to realize the time-sequential combined light of the first laser light and the first fluorescent light, and combine the first laser light and the first fluorescent light The time-sequence combined light is used as a primary color light, so as to improve the light efficiency of the first fluorescent light and the first laser light in the projection display device, and improve the brightness.

附图说明Description of drawings

为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

图1为现有技术提供的单片式DLP投影显示设备结构图；FIG. 1 is a structural diagram of a single-chip DLP projection display device provided by the prior art;

图2为本发明实施例提供的投影显示设备的结构框图；FIG. 2 is a structural block diagram of a projection display device provided by an embodiment of the present invention;

图3为本发明实施例提供的图2中的波长转换装置的分段区域的分布示例图；FIG. 3 is an example diagram of the distribution of segmented regions of the wavelength conversion device in FIG. 2 provided by an embodiment of the present invention;

图4为本发明另一实施例提供的图2中的波长转换装置的分段区域的分布示例图；FIG. 4 is an example diagram of the distribution of segmented regions of the wavelength conversion device in FIG. 2 provided by another embodiment of the present invention;

图5为本发明又一实施例提供的图2中的波长转换装置的分段区域的分布示例图；FIG. 5 is an example diagram of the distribution of segmented regions of the wavelength conversion device in FIG. 2 provided by another embodiment of the present invention;

图6为本发明再一实施例提供的图2中的波长转换装置的分段区域的分布示例图；FIG. 6 is an example diagram of the distribution of segmented regions of the wavelength conversion device in FIG. 2 provided by another embodiment of the present invention;

图7为本发明还一实施例提供的图2中的波长转换装置的分段区域的分布示例图；FIG. 7 is an example diagram of the distribution of segmented regions of the wavelength conversion device in FIG. 2 provided by another embodiment of the present invention;

图8为本发明实施例提供的投影显示设备的结构示例图；FIG. 8 is a structural example diagram of a projection display device provided by an embodiment of the present invention;

图9为本发明实施例提供的投影显示设备的控制方法的实现流程图；FIG. 9 is a flow chart of an implementation of a method for controlling a projection display device according to an embodiment of the present invention;

图10为本发明另一实施例提供的投影显示设备的控制方法的实现流程图。FIG. 10 is a flow chart of implementing a method for controlling a projection display device according to another embodiment of the present invention.

具体实施方式detailed description

为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是本发明还可以采用其他不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似应用，因此本发明不受下面公开的具体实施例的限制。且其中的“第一”、“第二”等次序用语并不代表次序，仅仅用于区分相近技术术语。In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. Similar applications, therefore, the present invention is not limited by the specific embodiments disclosed below. In addition, the sequential terms such as "first" and "second" do not represent the order, but are only used to distinguish similar technical terms.

其次，本发明结合示意图进行详细描述，在详述本发明实施例时，为便于说明，表示器件结构的剖面图会不依一般比例作局部放大，而且所述示意图只是示例，其在此不应限制本发明保护的范围。此外，在实际制作中应包含长度、宽度及深度的三维空间尺寸。Secondly, the present invention is described in detail in combination with schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional view showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, and it should not be limited here. The protection scope of the present invention. In addition, the three-dimensional space dimensions of length, width and depth should be included in actual production.

下面通过几个实施例详细描述。The following describes in detail through several embodiments.

实施例一Embodiment one

请参阅图2，为本发明实施提供的投影显示设备的控制方法适用的投影显示设备的结构简图，其中仅示出了与本发明实施例相关的部分，未示出的部分可参照现有的投影显示设备。该投影显示设备包括可出射时序光的发光装置21，光处理装置22，空间光调制装置23，控制装置24和投影装置25。其中：Please refer to FIG. 2 , a schematic structural diagram of a projection display device applicable to the control method of the projection display device provided for the implementation of the present invention, in which only the parts related to the embodiment of the present invention are shown, and the unshown parts can refer to the existing projection display equipment. The projection display device includes a light emitting device 21 capable of emitting sequential light, a light processing device 22 , a spatial light modulation device 23 , a control device 24 and a projection device 25 . in:

发光装置21可出射时序光，该时序光包括时序的至少一激光和至少一荧光。其中时序的至少一激光中的至少一第一激光与时序的至少一荧光中的至少一第一荧光存在光谱重叠。其中荧光可以为波长转换材料受激而发出的受激光，如红光波长转换材料在蓝光的激发下而产生的红光，橙光波长转换材料在蓝光的激发下而产生的橙光等。其中波长转换材料包括但不限于荧光粉、量子点等。The light emitting device 21 can emit sequential light, and the sequential light includes at least one laser and at least one fluorescent light in sequence. There is spectral overlap between at least one first laser in the sequential at least one laser and at least one first fluorescent in the sequential at least one fluorescent light. The fluorescence can be the stimulated light emitted by the wavelength conversion material, such as the red light generated by the red wavelength conversion material under the excitation of blue light, the orange light generated by the orange wavelength conversion material under the excitation of blue light, etc. The wavelength conversion materials include but not limited to phosphors, quantum dots and the like.

其中第一激光是指时序的至少一激光中的与时序的至少一荧光存在光谱重叠的激光。第一荧光是指时序的至少一荧光中的与时序的至少一激光存在光谱重叠的荧光。比如若发光装置11发出时序的蓝光、绿荧光、橙荧光和红激光，则橙荧光与红激光之间存在光谱重叠，因此，橙荧光为第一荧光，红激光为第一激光。若发光装置21发出时序的蓝光、青绿激光、橙荧光、蓝光、绿荧光、红激光，则橙荧光与红激光之间存在光谱重叠，且绿荧光与青绿激光之间也存在光谱重叠，因此，橙荧光和绿荧光均为第一荧光，红激光和青绿激光均为第一激光。Wherein the first laser refers to the laser in the at least one sequential laser that has spectral overlap with the at least one fluorescent light in the sequence. The first fluorescent light refers to the fluorescent light in the at least one fluorescent light having a spectral overlap with the at least one laser light in the sequential sequence. For example, if the light-emitting device 11 emits blue light, green fluorescence, orange fluorescence and red laser light sequentially, there is spectral overlap between the orange fluorescence light and the red laser light. Therefore, the orange light emission is the first light emission, and the red light emission is the first laser light. If the light-emitting device 21 emits sequential blue light, cyan laser light, orange fluorescent light, blue light, green fluorescent light, and red laser light, there is spectral overlap between the orange fluorescent light and the red laser light, and there is also spectral overlap between the green fluorescent light and the cyan laser light. Therefore, Both orange fluorescence and green fluorescence are first fluorescence, and red laser and cyan laser are both first laser.

其中发光装置21包括至少两个光源，分别为发出激发光的激发光源211和发出激光的激光光源212，还包括波长转换装置213。其中激发光源211发出的激发光与激光光源212发出的激光的光谱范围不同。该波长转换装置213设置于激发光源211发出的激发光和激光光源212发出的激光的传输路径中，且该波长转换装置213在激发光源211和激光光源212的交替照射下输出时序光，该时序光包括时序的至少一激光和至少一荧光。其中时序的至少一激光中的至少一第一激光与时序的至少一荧光中的至少一第一荧光存在光谱重叠。The light emitting device 21 includes at least two light sources, namely an excitation light source 211 emitting excitation light and a laser light source 212 emitting laser light, and also includes a wavelength conversion device 213 . The excitation light emitted by the excitation light source 211 and the laser light emitted by the laser light source 212 have different spectral ranges. The wavelength conversion device 213 is arranged in the transmission path of the excitation light emitted by the excitation light source 211 and the laser light emitted by the laser light source 212, and the wavelength conversion device 213 outputs sequential light under the alternate irradiation of the excitation light source 211 and the laser light source 212. The light includes a sequence of at least one laser light and at least one fluorescent light. There is spectral overlap between at least one first laser in the sequential at least one laser and at least one first fluorescent in the sequential at least one fluorescent light.

具体的，该激发光源211可以为蓝光光源，如蓝光激光光源等。该激光光源212与波长转换装置213上设置的波长转换层相关，即该激光光源212出射的激光与波长转换装置213上设置的至少一个波长转换层出射的荧光存在光谱重叠，如当波长转换装置213上设置有红光波长转换层或者橙光波长转换层时，则该激光光源212为红光激光光源；当波长转换装置213上设置有绿光波长转换层时，则该激光光源为绿光激光光源、青绿激光光源或者青光激光光源，如主波长在510nm-530nm范围内的激光光源；当波长转换装置213上设置有红光波长转换层或者橙光波长转换层以及绿光波长转换层时，则该激光光源212为红光激光光源，和/或，绿光激光光源、青绿激光光源或者青光激光光源。Specifically, the excitation light source 211 may be a blue light source, such as a blue laser light source. The laser light source 212 is related to the wavelength conversion layer provided on the wavelength conversion device 213, that is, the laser light emitted by the laser source 212 overlaps with the fluorescence emitted by at least one wavelength conversion layer provided on the wavelength conversion device 213, such as when the wavelength conversion device 213 is provided with a red wavelength conversion layer or an orange wavelength conversion layer, the laser light source 212 is a red laser light source; when the wavelength conversion device 213 is provided with a green wavelength conversion layer, the laser light source is a green light source. Laser light source, cyan laser light source or cyan laser light source, such as a laser light source with a dominant wavelength in the range of 510nm-530nm; when the wavelength conversion device 213 is provided with a red wavelength conversion layer or an orange wavelength conversion layer and a green wavelength conversion layer , the laser light source 212 is a red laser light source, and/or a green laser light source, a cyan laser light source or a cyan laser light source.

其中波长转换装置213包括沿圆周方向设置的多个分段区域，其中部分分段区域上设置有在激发光源的照射下可出射荧光的波长转换层，部分分段区域上设置有第一散射层，部分分段区域上设置有第二散射层。其中第一散射层可以为在波长转换装置的分段区域的表面实施粗糙化光学处理而形成，第二散射层为在波长转换装置的分段区域的表面配置带来扩散效应的光学物质而形成。在该波长转换装置213周期性运动过程中，沿圆周方向设置的多个分段区域周期性的分时序的位于激发光源211发出的激发光和激光光源212发出激光的传输路径中，使得该波长转换装置213在激发光源211和激光光源212的交替照射下出射时序光。该波长转换壮志213可以为反射式波长转换装置，透射式波长转换装置或者包括反射部分和透射部分的波长转换装置。Wherein the wavelength conversion device 213 includes a plurality of segmented areas arranged along the circumferential direction, wherein some of the segmented areas are provided with a wavelength conversion layer capable of emitting fluorescence under the irradiation of an excitation light source, and some of the segmented areas are provided with a first scattering layer , a second scattering layer is provided on part of the segmented area. Wherein the first scattering layer can be formed by roughening the surface of the segmented region of the wavelength conversion device, and the second scattering layer is formed by disposing an optical substance that brings a diffusion effect on the surface of the segmented region of the wavelength conversion device . During the periodic movement of the wavelength conversion device 213, the multiple segmented areas arranged along the circumferential direction are periodically and time-sequentially located in the transmission path of the excitation light emitted by the excitation light source 211 and the laser light emitted by the laser light source 212, so that the wavelength The conversion device 213 emits sequential light under the alternate irradiation of the excitation light source 211 and the laser light source 212 . The wavelength conversion device 213 may be a reflection wavelength conversion device, a transmission wavelength conversion device or a wavelength conversion device including a reflection part and a transmission part.

请参阅图3至7，为本发明实施例提供的图2中的波长转换装置213的分段区域的分布示例图，但波长转换装置213的分段区域的分布不以上述图示为限，还可以为在激发光源211和激光光源212的交替照射下出射包括时序的至少一激光和至少一荧光，且时序的至少一激光中的至少一第一激光与时序的至少一荧光中的至少一第一荧光存在光谱重叠的时序光的任意一种波长转换装置。Please refer to FIGS. 3 to 7, which are example diagrams of the distribution of the segmented regions of the wavelength conversion device 213 in FIG. 2 provided by the embodiment of the present invention, but the distribution of the segmented regions of the wavelength conversion device 213 is not limited to the above illustrations, It is also possible to emit at least one laser light and at least one fluorescent light including time sequence under the alternate irradiation of the excitation light source 211 and the laser light source 212, and at least one first laser in the at least one laser light of the time sequence and at least one of the at least one fluorescent light in the time sequence Any wavelength conversion device for time-sequential light with overlapping spectra in the first fluorescent light.

如图3所示，该波长转换装置213包括沿圆周方向设置的四个分段区域，分别为设有第二扩散层的分段区域(如图3中的蓝段B)、设有绿光波长转换层的分段区域(如图3中的绿段G)、设有橙光波长转换层的分段区域(如图3中的橙段O)、以及设有第一扩散层的分段区域(如图3中的diffuser段)。其中设有第二扩散层的分段区域B对入射至其的光线进行散射，如对入射至其的激发光进行散射。设有绿光波长转换层的分段区域G将入射至其的光线转换成绿光，如将入射至其的激发光转换为绿光。设有橙光波长转换层的分段区域O将入射至其的光线转换层橙光，如将入射至其的激发光转换为橙光。设有第一扩散层的分段区域diffuser对入射至其的光线进行散射。此时，该波长转换装置213在激发光源211和激光光源212的交替照射下，如在图3所示的B段、G段以及O段打开激发光源211，关闭激光光源212，在图3所示的diffuser段打开激光光源212，关闭激发光源211，从而使得该波长转换装置213可以出射时序的激发光源发出的激发光、绿光、橙光、以及激光光源发出的激光。若激发光源为蓝光光源，激光光源为红光激光光源，则该波长转换装置213可以出射时序的BGOR光；若激发光源为蓝光光源，激光光源为青绿光激光光源，则该波长转换装置213可以出射时序的BGOG’光，其中G’为激光光源发出的青绿光。As shown in FIG. 3 , the wavelength conversion device 213 includes four segmented areas arranged along the circumferential direction, which are respectively the segmented area provided with the second diffusion layer (as shown in the blue section B in FIG. 3 ), and the segmented area provided with the green light layer. The segmented area of the wavelength conversion layer (as shown in the green segment G in Figure 3), the segmented area provided with the orange wavelength conversion layer (as shown in the orange segment O in Figure 3), and the segmented area provided with the first diffusion layer area (as shown in the diffuser segment in Figure 3). The segmented region B in which the second diffusion layer is provided scatters light incident thereto, such as scattering excitation light incident thereto. The segmented region G provided with the green wavelength conversion layer converts the light incident thereto into green light, for example, converts the excitation light incident thereon into green light. The segmented region O provided with the orange wavelength conversion layer converts the incident light into the orange light of the conversion layer, for example, converts the incident excitation light into orange light. The segmented area diffuser provided with the first diffusing layer scatters light incident thereto. At this time, the wavelength converting device 213 turns on the excitation light source 211 and turns off the laser light source 212 as shown in FIG. The diffuser section shown turns on the laser light source 212 and turns off the excitation light source 211, so that the wavelength conversion device 213 can emit the excitation light, green light, orange light from the excitation light source and the laser light from the laser light source in sequence. If the excitation light source is a blue light source and the laser light source is a red laser light source, the wavelength conversion device 213 can emit sequential BGOR light; if the excitation light source is a blue light source and the laser light source is a cyan laser light source, then the wavelength conversion device 213 can The sequential BGOG' light is emitted, where G' is the blue-green light emitted by the laser light source.

如图4所示，该波长转换装置213包括沿圆周方向设置的六个分段区域，分别为设有第二扩散层的分段区域(如图4中的蓝段B)、设有绿光波长转换层的分段区域(如图4中的绿段G)、设有橙光波长转换层的分段区域(如图4中的橙段O)、设有第二扩散层的另一分段区域(如图4中的另一蓝段B)、设有绿光波长转换层的另一分段区域(如图4中的另一绿段G)、以及设有第一扩散层的分段区域(如图4中的diffuser段)。此时，该波长转换装置213在激发光源211和激光光源212的交替照射下，如在图4所示的两个B段、两个G段以及O段打开激发光源211，关闭激光光源212，在图4所示的diffuser段打开激光光源212，关闭激发光源211，从而使得该波长转换装置213可以出射时序的激发光源发出的激发光、绿光、橙光、激发光源发出的激发光、绿光以及激光光源发出的激光。若激发光源为蓝光光源，激光光源为红光激光光源，则该波长转换装置213可以出射时序的BGOBGR光。As shown in Figure 4, the wavelength conversion device 213 includes six segmented areas arranged along the circumferential direction, which are respectively the segmented area provided with the second diffusion layer (as shown in the blue section B in Figure 4), and the segmented area provided with the green light layer. The segmented area of the wavelength conversion layer (as shown in the green section G in Figure 4), the segmented area provided with the orange wavelength conversion layer (as shown in the orange segment O in Figure 4), and the other segmented area provided with the second diffusion layer segment area (as shown in another blue segment B in Figure 4), another segmented area provided with a green wavelength conversion layer (as shown in another green segment G in Figure 4), and a segment area provided with a first diffusion layer Segment area (such as the diffuser segment in Figure 4). At this moment, under the alternating irradiation of the excitation light source 211 and the laser light source 212, the wavelength conversion device 213 turns on the excitation light source 211 and turns off the laser light source 212 as shown in FIG. Turn on the laser light source 212 and turn off the excitation light source 211 in the diffuser segment shown in FIG. Light and laser light emitted by laser light sources. If the excitation light source is a blue light source and the laser light source is a red laser light source, the wavelength conversion device 213 can emit time-sequential BGOBGR light.

如图5所述，该波长转换装置213包括沿圆周方向设置的五个分段区域，分别为设有第二扩散层的分段区域(如图5中的蓝段B)、设有绿光波长转换层的分段区域(如图5中的绿段G)、设有黄光波长转换层的分段区域(如图5中的黄段Y)、设有橙光波长转换层的分段区域(如图5中的橙段O)、以及设有第一扩散层的分段区域(如图5中的diffuser段)。此时，该波长转换装置213在激发光源211和激光光源212的交替照射下，如在图5所示的B段、Y段、G段以及O段打开激发光源211，关闭激光光源212，在图5所示的diffuser段打开激光光源212，关闭激发光源211，从而使得该波长转换装置213可以出射时序的激发光源发出的激发光、黄光、绿光、橙光、以及激光光源发出的激光。若激发光源为蓝光光源，激光光源为红光激光光源，则该波长转换装置213可以出射时序的BGYOR光；若激发光源为蓝光光源，激光光源为青绿光激光光源，则该波长转换装置213可以出射时序的BGYOG’光，其中G’光为青绿光激光光源发出的青绿激光。As shown in Figure 5, the wavelength conversion device 213 includes five segmented areas arranged along the circumferential direction, which are respectively the segmented area provided with the second diffusion layer (as shown in the blue section B in Figure 5), and the segmented area provided with the green light layer. The segmented area of the wavelength conversion layer (as shown in the green segment G in Figure 5), the segmented area provided with the yellow wavelength conversion layer (as shown in the yellow segment Y in Figure 5), and the segmented area provided with the orange wavelength conversion layer area (such as the orange section O in Figure 5), and the segmented area provided with the first diffusion layer (such as the diffuser section in Figure 5). At this time, the wavelength conversion device 213 turns on the excitation light source 211, turns off the laser light source 212, and turns off the laser light source 212 as shown in FIG. The diffuser section shown in FIG. 5 turns on the laser light source 212 and turns off the excitation light source 211, so that the wavelength conversion device 213 can emit the excitation light, yellow light, green light, orange light, and laser light emitted by the excitation light source in sequence. . If the excitation light source is a blue light source and the laser light source is a red laser light source, then the wavelength conversion device 213 can emit sequential BGYOR light; The sequential BGYOG' light is emitted, and the G' light is the cyan laser light emitted by the cyan-green laser light source.

如图6所示，该波长转换装置213包括沿圆周方向设置的八个分段区域，分别为设有第二扩散层的分段区域(如图6中的蓝段B)、设有绿光波长转换层的分段区域(如图6中的绿段G)、设有黄光波长转换层的分段区域(如图6中的黄段Y)、设有橙光波长转换层的分段区域(如图6中的橙段O)、设有第二扩散层的另一分段区域(如图6中的另一蓝段B)、设有绿光波长转换层的另一分段区域(如图6中的另一绿段G)、设有黄光波长转换层的另一分段区域(如图6中的另一黄段Y)、以及设有第一扩散层的分段区域(如图6中的diffuser段)。此时，该波长转换装置213在激发光源211和激光光源212的交替照射下，如在图6所示的两个B段、两个Y段、两个G段以及O段打开激发光源211，关闭激光光源212，在图6所示的diffuser段打开激光光源212，关闭激发光源211，从而使得该波长转换装置213可以出射时序的激发光源发出的激发光、黄光、绿光、橙光、激发光源发出的激发光、黄光、绿光以及激光光源发出的激光。若激发光源为蓝光光源，激光光源为红光激光光源，则该波长转换装置213可以出射时序的BGYOR光；若激发光源为蓝光光源，激光光源为青绿光激光光源，则该波长转换装置213可以出射时序的BGYOBGYR光。As shown in Figure 6, the wavelength conversion device 213 includes eight segmented areas arranged along the circumferential direction, which are respectively the segmented area provided with the second diffusion layer (as shown in the blue section B in Figure 6), and the segmented area provided with the green light layer. The segmented area of the wavelength conversion layer (as shown in the green segment G in Figure 6), the segmented area provided with the yellow wavelength conversion layer (as shown in the yellow segment Y in Figure 6), the segmented area provided with the orange wavelength conversion layer region (as in the orange section O in Figure 6), another segmented area with a second diffusion layer (as in another blue segment B in Figure 6), and another segmented area with a green wavelength conversion layer (as in another green section G in Figure 6), another segmented area provided with a yellow wavelength conversion layer (as in another yellow segment Y in Figure 6), and a segmented area provided with a first diffusion layer (As shown in the diffuser segment in Figure 6). At this time, the wavelength conversion device 213 is under the alternate irradiation of the excitation light source 211 and the laser light source 212, as shown in FIG. Turn off the laser light source 212, turn on the laser light source 212 in the diffuser segment shown in FIG. The excitation light, yellow light, green light emitted by the excitation light source and the laser light emitted by the laser light source. If the excitation light source is a blue light source and the laser light source is a red laser light source, then the wavelength conversion device 213 can emit sequential BGYOR light; BGYOBGYR light of emission timing.

如图7所示，该波长转换装置213包括沿圆周方向设置的六个分段区域，分别为设有第二扩散层的分段区域(如图7中的蓝段B)、设有绿光波长转换层的分段区域(如图7中的绿段G)、设有第一扩散层的分段区域(如图7中的diffuser段)、设有第二扩散层的另一分段区域(如图7中的另一蓝段B)、设有橙光波长转换层的分段区域(如图7中的橙段O)、以及设有第一扩散层的另一分段区域(如图7中的另一diffuser段)。此时，该波长转换装置213在激发光源211和激光光源212的交替照射下，如在图7所示的两个B段、G段以及O段打开激发光源211，关闭激光光源212，在图7所示的diffuser段打开激光光源212，关闭激发光源211，从而使得该波长转换装置213可以出射时序的激发光源发出的激发光、激光光源出射的激光、橙光、激发光源发出的激发光、绿光以及激光光源发出的激光。若激发光源为蓝光光源，激光光源包括红光激光光源和青绿激光光源，则该波长转换装置213在蓝光光源、红光激光光源、青绿激光光源的交替照射下可以出射时序的BG’OBGR光。As shown in Figure 7, the wavelength conversion device 213 includes six segmented areas arranged along the circumferential direction, which are respectively the segmented area provided with the second diffusion layer (as shown in the blue section B in Figure 7), and the segmented area provided with the green light layer. The segmented area of the wavelength conversion layer (like the green section G in Figure 7), the segmented area provided with the first diffusion layer (such as the diffuser section in Figure 7), and another segmented area provided with the second diffusion layer (as another blue segment B in Figure 7), a segmented area provided with an orange wavelength conversion layer (as shown in Orange segment O in Figure 7), and another segmented area provided with a first diffusion layer (as Another diffuser segment in Figure 7). At this time, the wavelength conversion device 213 turns on the excitation light source 211 and turns off the laser light source 212 as shown in FIG. The diffuser section shown in 7 turns on the laser light source 212 and turns off the excitation light source 211, so that the wavelength conversion device 213 can emit the excitation light emitted by the excitation light source in sequence, the laser light emitted by the laser light source, the orange light, the excitation light emitted by the excitation light source, Green light and laser light from a laser light source. If the excitation light source is a blue light source, and the laser light source includes a red laser light source and a cyan laser light source, then the wavelength conversion device 213 can emit time-sequential BG'OBGR light under the alternate irradiation of the blue light source, the red laser light source, and the cyan laser light source.

光处理装置22设置于发光装置21发出的光的传输路径中，用于对发光装置21发出的光进行处理，如收集、均匀化等，并将处理后的光入射至空间光调制装置23。The light processing device 22 is arranged in the transmission path of the light emitted by the light emitting device 21 , and is used for processing the light emitted by the light emitting device 21 , such as collecting and homogenizing, and injecting the processed light into the spatial light modulation device 23 .

空间光调制装置23在控制装置24的控制下对经光处理装置22处理并入射的光进行调制，得到调制光，该调制光经光处理装置22后入射至投影装置25而投影成显示图像。该空间光调制装置23可以为DMD。The spatial light modulation device 23 modulates the incident light processed by the light processing device 22 under the control of the control device 24 to obtain modulated light. The spatial light modulation device 23 may be a DMD.

其中控制装置24接收解码后的源图像信号，并将解码后的源图像信号转换为调制控制信号，根据该调制控制信号对空间光调制装置23进行控制。其中解码后的源图像信号是指对需要投影显示的图像解码后得到的图像信号。该解码后的源图像信号一般包括三基色图像信号，即红(R)基色图像信号、绿(G)基色图像信号和蓝(B)基色图像信号。其中控制装置24的具体结构请参阅后续的详细说明。The control device 24 receives the decoded source image signal, converts the decoded source image signal into a modulation control signal, and controls the spatial light modulation device 23 according to the modulation control signal. The decoded source image signal refers to an image signal obtained after decoding an image to be projected and displayed. The decoded source image signal generally includes three primary color image signals, that is, a red (R) primary color image signal, a green (G) primary color image signal and a blue (B) primary color image signal. For the specific structure of the control device 24 , please refer to the subsequent detailed description.

为了便于理解，图8示出了本发明实施例提供的投影显示设备的结构示例图，但本发明提供的投影显示设备不以图8所示为限，其还可以为满足上述结构的任意变形。在本示例图中，波长转换装置为透射式色轮，可以理解，该波长转换装置也可以为反射式色轮，包括透射部分和反射部分的色轮。本领域技术人员依据图8所示的采用透射式色轮的发光装置的结构示例图，结合本发明中发光装置发出的时序光的特点，可以直接设计出采用反射式色轮或者采用包括透射部分和反射部分的色轮的发光装置的投影显示设备，故在此不再一一举例说明。For ease of understanding, FIG. 8 shows a structural example diagram of the projection display device provided by the embodiment of the present invention, but the projection display device provided by the present invention is not limited to that shown in FIG. 8 , and it can also be any deformation that meets the above structure . In this example figure, the wavelength conversion device is a transmissive color wheel. It can be understood that the wavelength conversion device may also be a reflective color wheel, including a color wheel with a transmissive part and a reflective part. Those skilled in the art can directly design a reflective color wheel or a transmissive part according to the structure example diagram of a light emitting device using a transmissive color wheel shown in FIG. and the projection display device of the light-emitting device of the color wheel of the reflective part, so no more examples will be given here.

实施例二Embodiment two

图9示出了本发明第一实施例提供的投影显示设备的控制方法的实现流程，该方法包括：Fig. 9 shows the implementation process of the method for controlling a projection display device provided by the first embodiment of the present invention, the method includes:

S901，获取解码后的源图像信号中各基色图像信号。S901. Acquire each primary color image signal in the decoded source image signal.

其中解码后的源图像信号中包括的各基色图像信号一般为三基色图像信号，分别为红(R)基色图像信号、绿(G)基色图像信号和蓝(B)基色图像信号。The primary color image signals included in the decoded source image signal are generally three primary color image signals, namely red (R) primary color image signal, green (G) primary color image signal and blue (B) primary color image signal.

S902，将解码后的源图像信号转换为调制控制信号，并通过所述调制控制信号控制所述空间光调制装置对所述时序光进行调制。S902. Convert the decoded source image signal into a modulation control signal, and use the modulation control signal to control the spatial light modulation device to modulate the time-sequential light.

其中将解码后的源图像信号转换为调制控制信号并通过所述调制控制信号控制所述空间光调制装置对所述时序光进行调制的具体过程如下：The specific process of converting the decoded source image signal into a modulation control signal and controlling the spatial light modulation device to modulate the sequential light through the modulation control signal is as follows:

将解码后的源图像信号中的与存在光谱重叠的所述第一激光和第一荧光对应的至少一种基色图像信号转换成第一基色控制信号和第二基色控制信号，并通过第一基色控制信号和第二基色控制信号控制空间光调制装置分别对存在光谱重叠的第一激光和第一荧光进行调制，且存在光谱重叠的第一激光和第一荧光混合后的亮度与解码后的源图像信号中的对应基色图像信号的亮度相同，存在光谱重叠的第一激光和第一荧光混合后的色坐标与解码后的源图像信号中的对应基色图像信号的色坐标相同。这样，可以将解码后的源图像信号转换成包含第一基色控制信号和第二基色控制信号的调制控制信号。converting at least one primary color image signal in the decoded source image signal corresponding to the first laser light and the first fluorescent light with overlapping spectra into a first primary color control signal and a second primary color control signal, and passing the first primary color The control signal and the second primary color control signal control the spatial light modulation device to respectively modulate the first laser light and the first fluorescent light with overlapped spectra, and the mixed brightness of the first laser light and the first fluorescent light with overlapping spectra is different from the decoded source The image signals corresponding to the primary color image signals in the image signal have the same brightness, and the color coordinates of the mixed first laser light and the first fluorescent light with overlapping spectra are the same as the color coordinates of the corresponding primary color image signals in the decoded source image signal. In this way, the decoded source image signal can be converted into a modulated control signal including the first primary color control signal and the second primary color control signal.

在本实施例中，将时序光中包括的与荧光存在光谱重叠的激光称为第一激光，将时序光中包括的与激光存在光谱重叠的荧光称为第一荧光。解码后的源图像信号中的与存在光谱重叠的所述第一激光和第一荧光对应的基色图像信号是指解码后的源图像信号中的基色图像信号所对应的基色与存在光谱重叠的第一激光和第一荧光对应的基色相同，如解码后的源图像信号中的红基色图像信号与发光装置出射的覆盖红光光谱范围的光(如红光、橙光等)对应，绿基色图像信号与发光装置发出射的覆盖绿光光谱范围的光(如绿光、青绿光等)对应，而蓝基色图像信号与发光装置出射的覆盖蓝光光谱范围的光(如蓝光)对应。In this embodiment, the laser light included in the sequential light and whose spectrum overlaps with the fluorescent light is called the first laser light, and the fluorescent light included in the sequential light and whose spectrum overlaps with the laser light is called the first fluorescent light. In the decoded source image signal, the primary color image signal corresponding to the first laser light and the first fluorescent light with spectral overlap refers to the primary color corresponding to the primary color image signal in the decoded source image signal and the first laser with spectral overlap. The primary colors corresponding to the laser light and the first fluorescent light are the same, for example, the red primary color image signal in the decoded source image signal corresponds to the light covering the red spectral range (such as red light, orange light, etc.) emitted by the light emitting device, and the green primary color image The signal corresponds to the light covering the green spectral range (such as green light, cyan light, etc.) emitted by the light emitting device, and the blue primary color image signal corresponds to the light covering the blue spectral range emitted by the light emitting device (such as blue light).

在本实施例中，在将所述解码后的源图像信号中的与存在光谱重叠的所述第一激光和第一荧光对应的至少一种基色图像信号转换成第一基色控制信号和第二基色控制信号时，若发光装置发出的时序光中包括的存在光谱重叠的第一激光和第一荧光分别为红激光和橙荧光，则由于解码后的源图像信号中的红基色图像信号与发光装置出射的覆盖红光光谱范围的光对应，因此，解码后的源图像信号中与存在光谱重叠的红激光和橙荧光对应的基色图像信号即为红基色图像信号，此时，将解码后的源图像信号中的红基色图像信号转换成第一红基色控制信号和第二红基色控制信号；In this embodiment, at least one primary color image signal in the decoded source image signal corresponding to the first laser light and the first fluorescent light with overlapping spectra is converted into the first primary color control signal and the second primary color control signal. When the primary color control signal is used, if the first laser light and the first fluorescent light with overlapping spectra included in the sequential light emitted by the light-emitting device are red laser light and orange fluorescent light respectively, the red primary color image signal in the decoded source image signal and the light emission The light emitted by the device that covers the red light spectral range corresponds, therefore, in the decoded source image signal, the primary color image signal corresponding to the red laser light and orange fluorescence with spectral overlap is the red primary color image signal. At this time, the decoded source image signal The red primary color image signal in the source image signal is converted into a first red primary color control signal and a second red primary color control signal;

若发光装置发出的时序光中包括的存在光谱重叠的第一激光和第一荧光分别为青绿激光和绿荧光，则由于解码后的源图像信号中的绿基色图像信号与发光装置出射的覆盖绿光光谱范围的光对应，因此，解码后的源图像信号中与存在光谱重叠的青绿激光和绿荧光对应的基色图像信号即为绿基色图像信号，此时，将解码后的源图像信号中的绿基色图像信号转换成第一绿基色控制信号和第二绿基色控制信号；If the first laser light and the first fluorescent light with overlapping spectra included in the sequential light emitted by the light emitting device are cyan laser light and green fluorescent light respectively, then since the green primary color image signal in the decoded source image signal and the covered green light emitted by the light emitting device Therefore, in the decoded source image signal, the primary color image signal corresponding to the cyan laser and green fluorescence with spectral overlap is the green primary color image signal. At this time, the decoded source image signal is The green primary color image signal is converted into a first green primary color control signal and a second green primary color control signal;

若发光装置发出的时序光中包括的存在光谱重叠的第一激光和第一荧光分别为青绿激光和绿荧光，以及红激光和橙荧光，则可以将解码后的源图像信号中的红基色图像信号转换成第一红基色控制信号和第二红基色控制信号，和/或，将绿基色图像信号转换成第一绿基色控制信号和第二绿基色控制信号。If the first laser light and first fluorescent light with overlapping spectra included in the sequential light emitted by the light emitting device are cyan laser light and green fluorescent light, and red laser light and orange fluorescent light respectively, then the red primary color image in the decoded source image signal can be The signal is converted into a first primary red control signal and a second primary red control signal, and/or, a primary green image signal is converted into a first primary green control signal and a second primary green control signal.

具体的，在将解码后的源图像信号中的至少一种基色图像信号转换成第一基色控制信号和第二基色控制信号时，需要使得存在光谱重叠的第一激光和第一荧光混合后的亮度与解码后的源图像信号中的与存在光谱重叠的第一激光和第一荧光对应的基色图像信号的亮度相同，且存在光谱重叠的第一激光和第一荧光混合后的色坐标与解码后的源图像信号中的与存在光谱重叠的第一激光和第一荧光对应的基色图像信号的色坐标相同。Specifically, when converting at least one primary color image signal in the decoded source image signal into a first primary color control signal and a second primary color control signal, it is necessary to mix the first laser light and the first fluorescent light with overlapping spectra. The brightness is the same as the brightness of the primary color image signal corresponding to the first laser light and the first fluorescent light with overlapping spectra in the decoded source image signal, and the color coordinates of the first laser light and the first fluorescent light with overlapping spectral spectra are mixed and decoded The color coordinates of the primary color image signals corresponding to the first laser light and the first fluorescent light with overlapping spectra in the subsequent source image signals are the same.

其中解码后的源图像信号中的与存在光谱重叠的第一激光和第一荧光对应的基色图像信号的亮度是指解码后的源图像信号中被转换成第一基色控制信号和第二基色控制信号的基色图像信号的亮度，该基色图像信号的亮度可以根据该基色图像信号的灰度值(如该基色图像信号的最大灰度值)和存在光谱重叠的第一激光和第一荧光全开时的亮度确定，如假设基色图像信号为红基色图像信号，其灰度值为a，该基色图像信号对应的存在光谱重叠的第一激光和第一荧光分别为红激光和橙荧光，其中红激光全开时的亮度为L_R，橙荧光全开时的亮度为L_O，则存在光谱重叠的红激光和橙荧光全开时的亮度L_R’为L_R+L_O，则该红基色图像信号的亮度即为其中K为空间光调制装置所能达到的最大灰度值。In the decoded source image signal, the brightness of the primary color image signal corresponding to the first laser light and the first fluorescent light with spectral overlap refers to the first primary color control signal and the second primary color control signal converted into the first primary color control signal and the second primary color control signal in the decoded source image signal The brightness of the primary color image signal of the signal, the brightness of the primary color image signal can be based on the grayscale value of the primary color image signal (such as the maximum grayscale value of the primary color image signal) and the first laser and the first fluorescent light with spectral overlap When the brightness is determined, for example, assuming that the primary color image signal is a red primary color image signal, its gray value is a, and the first laser light and the first fluorescent light corresponding to the primary color image signal with overlapping spectra are red laser light and orange fluorescent light respectively, where red The brightness when the laser is fully turned on is L _R , and the brightness when the orange fluorescence is fully turned on is L _O , then the brightness L _R ' of the red laser and the orange fluorescence when the spectrum overlaps is L _R + L _O , then the red primary color The brightness of the image signal is Where K is the maximum gray value that the spatial light modulation device can achieve.

在本发明优选实施例中，在将解码后的源图像信号中的一种基色图像信号转换成第一基色控制信号和第二基色控制信号时，其中第一基色控制信号和第二基色控制信号满足如下要求：In a preferred embodiment of the present invention, when one primary color image signal in the decoded source image signal is converted into a first primary color control signal and a second primary color control signal, wherein the first primary color control signal and the second primary color control signal Meet the following requirements:

$x x = = \frac{\frac{{x x}_{11}}{{y the y}_{11}} \cdot \cdot \frac{a a 11}{K K} \cdot \cdot {L L}_{C C 1111} + + \frac{{x x}_{22}}{{y the y}_{22}} \cdot \cdot \frac{a a 22}{K K} \cdot \cdot {L L}_{C C 1212}}{\frac{11}{{y the y}_{11}} \cdot \cdot \frac{a a 11}{K K} \cdot \cdot {L L}_{C C 1111} + + \frac{11}{{y the y}_{22}} \cdot \cdot \frac{a a 22}{K K} \cdot \cdot {L L}_{C C 1212}}$

$y the y = = \frac{\frac{a a 11}{K K} \cdot \cdot {L L}_{C C 1111} + + \frac{a a 22}{K K} \cdot \cdot {L L}_{C C 1212}}{\frac{11}{{y the y}_{11}} \cdot \cdot \frac{a a 11}{K K} \cdot \cdot {L L}_{C C 1111} + + \frac{11}{{y the y}_{22}} \cdot \cdot \frac{a a 22}{K K} \cdot \cdot {L L}_{C C 1212}}$

其中为解码后的源图像信号中的与存在光谱重叠的第一激光和第一荧光对应的基色图像信号的亮度，为存在光谱重叠的第一激光和第一受激光混合后的亮度；L_C1’为存在光谱重叠的第一激光和第一荧光均全开时的亮度，L_C11为存在光谱重叠的第一激光全开时的亮度，L_C12为存在光谱重叠的第一荧光全开时的亮度，C1、C11、C12均为基色光标识，如C可以表示为红(R)，绿(G)和蓝(B)等，其中L_C1’等于存在光谱重叠的第一激光全开时的亮度L_C11与第一荧光全开时的亮度L_C12之和；in is the brightness of the primary color image signal corresponding to the first laser light and the first fluorescent light with spectral overlap in the decoded source image signal, is the brightness after mixing the first laser light with spectral overlap and the first subject light; L _C1 ' is the brightness when the first laser light with spectral overlap and the first fluorescent light are fully on, and L _C11 is the first laser light with spectral overlap The brightness when fully on, L _C12 is the brightness when the first fluorescent light with spectral overlap is fully on, C1, C11, and C12 are the primary color light marks, such as C can be expressed as red (R), green (G) and blue ( B) etc., wherein L _C1 ' is equal to the sum of the brightness L _C11 when the first laser is fully turned on and the brightness L _C12 when the first fluorescent light is fully turned on with spectral overlap;

(x，y)为存在光谱重叠的第一激光和第一荧光均全开时的色坐标，(x1，y1)为存在光谱重叠的第一激光全开时的色坐标，(x2，y2)为存在光谱重叠的第一荧光全开时的色坐标；(x, y) are the color coordinates when the first laser and the first fluorescent light with spectral overlap are fully on, (x1, y1) are the color coordinates when the first laser with spectral overlap is fully on, (x2, y2) is the color coordinate when the first fluorescence with spectral overlap is fully on;

a为解码后的源图像信号中的与存在光谱重叠的第一激光和第一荧光对应的基色图像信号，如可以为该基色图像的最大灰度值，a1为第一基色控制信号，a2为第二基色控制信号，且a、a1、a2均为大于或等于0且小于或等于K的整数，其中K为空间光调制装置所能达到的最大灰度值。a is the primary color image signal in the decoded source image signal corresponding to the first laser light and the first fluorescent light with spectral overlap, such as the maximum gray value of the primary color image, a1 is the first primary color control signal, and a2 is The second primary color control signal, and a, a1, and a2 are all integers greater than or equal to 0 and less than or equal to K, where K is the maximum grayscale value that the spatial light modulation device can achieve.

可选的，可以将a1、a2设置为相等的值，且a1、a2均等于a，此时，第一基色控制信号和第二基色控制信号要满足的要求简化如下：Optionally, a1 and a2 can be set to equal values, and both a1 and a2 are equal to a. At this time, the requirements to be satisfied by the first primary color control signal and the second primary color control signal are simplified as follows:

L_C1'＝L_C11+L_C12 L _C1 '＝L _C11 +L _C12

$x x = = \frac{\frac{{x x}_{11}}{{y the y}_{11}} \cdot \cdot {L L}_{C C 1111} + + \frac{{x x}_{22}}{{y the y}_{22}} \cdot \cdot {L L}_{C C 1212}}{\frac{11}{{y the y}_{11}} \cdot \cdot {L L}_{C C 1111} + + \frac{11}{{y the y}_{22}} \cdot \cdot {L L}_{C C 1212}}$

$y the y = = \frac{{L L}_{C C 1111} + + {L L}_{C C 1212}}{\frac{11}{{y the y}_{11}} \cdot \cdot {L L}_{C C 1111} + + \frac{11}{{y the y}_{22}} \cdot \cdot {L L}_{C C 1212}}$

当将a1、a2设置为相等的值，且a1、a2均等于a时，解码后的源图像信号转换成调制控制信号实际就是将解码后的源图像信号中的与存在光谱重叠的第一激光和第一荧光对应的基色图像信号在时序上重复一次。When a1 and a2 are set to equal values, and a1 and a2 are both equal to a, converting the decoded source image signal into a modulation control signal is actually converting the first laser beam in the decoded source image signal that overlaps with the existing spectrum The primary color image signal corresponding to the first fluorescent light is repeated once in time sequence.

可选的，也可以将a1、a2在满足上述要求的同时设置为不同的值。Optionally, a1 and a2 may also be set to different values while meeting the above requirements.

在本发明实施例中，由于将解码后的源图像信号转换成满足上述要求的调制控制信号，采用这种调制控制信号来控制空间光调制装置时，空间光调制装置在由同一个基色图像信号转换成的两个时序的基色控制信号内分别对存在光谱重叠的第一激光和第一荧光进行调制处理，使得第一激光和第一荧光可以在时序上混合而作为一种基色光。由于将第一激光和第一荧光时序上混合后的混合光作为一种基色光，从而避免了单独采用第一激光作为基色光而存在的散斑的问题，避免了单独采用第一荧光作为基色光而存在的该基色光的色坐标与标准色坐标之间存在差异的问题，通过将第一激光和第一荧光在时序上混合后的混合光作为一种基色光，从而避免了激光带来的散斑现象，同时在保证荧光的效率的同时，改善了基色光的色坐标，使基色光的色坐标可以达到标准色坐标(如REC709或者DIC)的要求。In the embodiment of the present invention, since the decoded source image signal is converted into a modulation control signal that meets the above requirements, when the modulation control signal is used to control the spatial light modulation device, the spatial light modulation device will use the same primary color image signal The converted two time-sequential primary color control signals respectively perform modulation processing on the first laser light and the first fluorescent light with overlapping spectra, so that the first laser light and the first fluorescent light can be mixed in time sequence to form a primary color light. Since the mixed light of the first laser and the first fluorescent light is used as a primary color light, the problem of speckle that exists when the first laser light is used alone as the primary color light is avoided, and the first fluorescent light is used alone as the primary color. There is a problem that there is a difference between the color coordinates of the primary color light and the standard color coordinates of the light. By using the mixed light of the first laser and the first fluorescent light in time sequence as a primary color light, the laser light is avoided. At the same time, while ensuring the efficiency of fluorescence, the color coordinates of the primary color light are improved, so that the color coordinates of the primary color light can meet the requirements of standard color coordinates (such as REC709 or DIC).

为了更清楚的说明本发明实施例提供的投影显示系统的控制方法，以下以一个具体的示例进行更为详细的说明，其中发光装置的波长转换装置采用图3所示的波长转换装置：In order to more clearly illustrate the control method of the projection display system provided by the embodiment of the present invention, a specific example is used for a more detailed description below, wherein the wavelength conversion device of the light emitting device adopts the wavelength conversion device shown in Figure 3:

发光装置出射的时序光为时序的蓝光、绿光、橙光和红光，其中蓝光和红光为激光，绿光和橙光分别为相应的波长转换材料受激产生的。则获取解码后的源图像信号中的三基色图像信号BGR，由于发光装置出射的时序光中的红光和橙光存在光谱重叠，且存在光谱重叠的红光和橙光对应的基色图像信号为红基色图像信号，因此，将三基色图像信号中的R基色图像信号转换成第一R基色控制信号R1和第二R基色控制信号R2，其余基色图像信号不变，从而可以将解码后的源图像信号BGR转换成调制控制信号BGR1R2，通过该调制控制信号BGR1R2控制空间光调制装置依次对发光装置出射的蓝光、绿光、红光和橙光进行调制。具体的，通过调制控制信号B对发光装置出射的蓝光进行调制，通过调制控制信号G对发光装置出射的绿光进行调制，通过调制控制信号R1对发光装置出射的红光进行调制，通过调制控制信号R2对发光装置出射的橙光进行调制。其中R1、R2满足如下要求：The sequential light emitted by the light-emitting device is sequential blue light, green light, orange light and red light, wherein the blue light and red light are laser light, and the green light and orange light are respectively generated by excitation of corresponding wavelength conversion materials. Then the three-primary-color image signal BGR in the decoded source image signal is obtained. Since the red light and orange light in the sequential light emitted by the light-emitting device have spectral overlap, and the red light and orange light with spectral overlap correspond to the primary-color image signal as The red primary color image signal, therefore, the R primary color image signal in the three primary color image signals is converted into the first R primary color control signal R1 and the second R primary color control signal R2, and the remaining primary color image signals remain unchanged, so that the decoded source The image signal BGR is converted into a modulation control signal BGR1R2, and the modulation control signal BGR1R2 is used to control the spatial light modulation device to sequentially modulate the blue light, green light, red light and orange light emitted by the light emitting device. Specifically, the blue light emitted by the light-emitting device is modulated by the modulation control signal B, the green light emitted by the light-emitting device is modulated by the modulation control signal G, and the red light emitted by the light-emitting device is modulated by the modulation control signal R1. The signal R2 modulates the orange light emitted by the light emitting device. Among them, R1 and R2 meet the following requirements:

$\frac{a a}{K K} {L L}_{R R}^{,,} = = \frac{a a 11}{K K} {L L}_{R R} + + \frac{a a 22}{K K} {L L}_{O o}$

$x x = = \frac{\frac{{x x}_{11}}{{y the y}_{11}} \cdot \cdot \frac{a a 11}{K K} \cdot \cdot {L L}_{R R} + + \frac{{x x}_{22}}{{y the y}_{22}} \cdot \cdot \frac{a a 22}{K K} \cdot \cdot {L L}_{O o}}{\frac{11}{{y the y}_{11}} \cdot \cdot \frac{a a 11}{K K} \cdot \cdot {L L}_{R R} + + \frac{11}{{y the y}_{22}} \cdot &Center Dot; \frac{a a 22}{K K} \cdot &Center Dot; {L L}_{O o}} . .$

$y the y = = \frac{\frac{a a 11}{K K} \cdot &Center Dot; {L L}_{R R} + + \frac{a a 22}{K K} \cdot &Center Dot; {L L}_{O o}}{\frac{11}{{y the y}_{11}} \cdot &Center Dot; \frac{a a 11}{K K} \cdot &Center Dot; {L L}_{R R} + + \frac{11}{{y the y}_{22}} \cdot &Center Dot; \frac{a a 22}{K K} \cdot &Center Dot; {L L}_{O o}}$

其中，L_R’为存在光谱重叠的红光和橙光均全开时的亮度，L_R为红光全开时的亮度，L_O为橙光全开时的亮度；(x，y)为红光和橙光均全开时的色坐标，(x1，y1)为红光全开时的色坐标，(x2，y2)为橙光全开时的色坐标；a为解码后的源图像信号中的红基色图像信号，a1为第一红基色控制信号，a2为第二红基色控制信号，且a、a1、a2均为大于或等于0且小于或等于K的整数，K为空间光调制装置所能达到的最大灰度值。Among them, _LR 'is the brightness when the red light and orange light with spectral overlap are fully turned on, _LR is the brightness when the red light is fully turned on, and L _O is the brightness when the orange light is fully turned on; (x, y) is The color coordinates when both red light and orange light are fully on, (x1, y1) is the color coordinates when red light is fully on, (x2, y2) is the color coordinates when orange light is fully on; a is the decoded source image The red primary color image signal in the signal, a1 is the first red primary color control signal, a2 is the second red primary color control signal, and a, a1, a2 are all integers greater than or equal to 0 and less than or equal to K, K is the spatial light The maximum gray value that can be achieved by the modulation device.

具体的，a1和a2可以均为a，从而上述要求简化为：Specifically, both a1 and a2 can be a, so the above requirement is simplified as:

L_R'＝L_R+L_O L _R '=L _R +L _O

$x x = = \frac{\frac{{x x}_{11}}{{y the y}_{11}} \cdot &Center Dot; {L L}_{R R} + + \frac{{x x}_{22}}{{y the y}_{22}} \cdot &Center Dot; {L L}_{O o}}{\frac{11}{{y the y}_{11}} \cdot &Center Dot; {L L}_{R R} + + \frac{11}{{y the y}_{22}} \cdot &Center Dot; {L L}_{O o}}$

$y the y = = \frac{{L L}_{R R} + + {L L}_{O o}}{\frac{11}{{y the y}_{11}} \cdot &Center Dot; {L L}_{R R} + + \frac{11}{{y the y}_{22}} \cdot &Center Dot; {L L}_{O o}}$

同理，若发光装置的波长转换装置如图7所示，则该发光装置出射的时序光为时序的BG’OBGR，此时，将解码后的源图像信号中的三基色图像信号BGR中G基色图像信号转换成第一G基色控制信号G1和第二G基色控制信号G2，将R基色图像信号转换成第一R基色控制信号R1和第二R基色控制信号R2，从而将解码后的源图像信号中的三基色图像信号BGR转换成调制控制信号BG1G2R1R2，其中G1和G2，R1和R2满足如上要求。Similarly, if the wavelength conversion device of the light-emitting device is as shown in Figure 7, the time-sequential light emitted by the light-emitting device is the time-sequential BG'OBGR, at this time, the three-primary color image signal BGR in the decoded source image signal The primary color image signal is converted into the first G primary color control signal G1 and the second G primary color control signal G2, and the R primary color image signal is converted into the first R primary color control signal R1 and the second R primary color control signal R2, so that the decoded source The three-primary-color image signal BGR in the image signal is converted into a modulation control signal BG1G2R1R2, wherein G1 and G2, R1 and R2 meet the above requirements.

在本发明优选实施例中，可以通过对现有的用于对空间光调制装置进行调制控制的DDP本征程序(DLP Data processor，DDP)进行修改，使该DDP本征程序将解析后的源图像信号中与存在光谱重叠的第一激光和第一荧光对应的至少一种基色图像信号转换成第一基色控制信号和第二基色控制信号，以得到调制控制信号(如将BGR转换成调制控制信号BGR1R2)，且该DDP本征程序通过调制控制信号(如BGR1R2)来控制空间光调制装置依次对光源出射的时序光进行调制，从而将存在光谱重叠的第一激光和第一荧光作为一种基色光进行处理。In a preferred embodiment of the present invention, the existing DDP intrinsic program (DLP Data processor, DDP) used for modulating and controlling the spatial light modulation device can be modified, so that the DDP intrinsic program can use the parsed source In the image signal, at least one primary color image signal corresponding to the first laser light and the first fluorescent light with spectral overlap is converted into a first primary color control signal and a second primary color control signal to obtain a modulation control signal (such as converting BGR into a modulation control signal) signal BGR1R2), and the DDP intrinsic program controls the spatial light modulation device to sequentially modulate the sequential light emitted by the light source by modulating the control signal (such as BGR1R2), so that the first laser light and the first fluorescent light with overlapping spectra are used as a kind of The primary color light is processed.

具体的，以图3所示的波长转换装置为例，在改进后的DDP本征程序的初始化设置中，将波长转换装置设置成三段式，其中图3所示的O段和R段作为一段，并将O段和R段时序混合后的亮度和色坐标分别设置为L_R’、(x,y)，其中L_R’为橙光和红光混合后的亮度，(x,y)为橙光和红光混合后的色坐标，这样改进后的DDP本征程序即可将解码后的源图像信号BGR按照上述方式转换成调制控制信号BGR1R2，从而实现将橙光与红光作为一种基色光进行处理，使得采用四段式波长转换装置而得到三角形色域的图像。Specifically, taking the wavelength conversion device shown in FIG. 3 as an example, in the initialization setting of the improved DDP intrinsic program, the wavelength conversion device is set to a three-segment type, wherein the O segment and the R segment shown in FIG. 3 are used as One segment, and set the luminance and color coordinates of segment O and segment R as L _R ', (x, y) respectively, where L _R 'is the brightness after mixing orange and red light, (x, y) is the color coordinate of the mixed orange light and red light, so that the improved DDP intrinsic program can convert the decoded source image signal BGR into the modulation control signal BGR1R2 according to the above method, so as to realize the orange light and red light as one The primary color light is processed so that an image of a triangular color gamut can be obtained by using a four-segment wavelength conversion device.

实施例三Embodiment Three

该实施例是在上述实施例二的基础上所做的进一步改进，在该实施例中未详细说明的部分请参阅上述实施例二。当发光装置出射的时序光中还包括时序的且存在光谱重叠的第二荧光和第三荧光时，将解码后的源图像信号转换为调制控制信号还包括：This embodiment is a further improvement made on the basis of the above-mentioned embodiment 2. Please refer to the above-mentioned embodiment 2 for the parts not described in detail in this embodiment. When the time-sequential light emitted by the light-emitting device also includes the time-sequential second fluorescent light and the third fluorescent light with overlapping spectra, converting the decoded source image signal into a modulation control signal further includes:

将解码后的源图像信号中的与存在光谱重叠的第二荧光和第三荧光对应的至少一种基色图像信号转换成第三基色控制信号和第四基色控制信号，并通过第三基色控制信号和第四基色控制信号控制空间光调制装置分别对存在光谱重叠的第二荧光和第三荧光进行调制，其中存在光谱重叠的第二荧光和第三荧光混合后的亮度与解码后的源图像信号中的与存在光谱重叠的第二荧光和第三荧光对应的基色图像信号的亮度相同。converting at least one primary color image signal in the decoded source image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap into a third primary color control signal and a fourth primary color control signal, and passing the third primary color control signal and the fourth primary color control signal to control the spatial light modulation device to respectively modulate the second fluorescent light and the third fluorescent light with overlapping spectra, wherein the mixed brightness of the second fluorescent light and the third fluorescent light with overlapping spectral spectra is different from that of the decoded source image signal The luminances of the primary color image signals corresponding to the second fluorescent light and the third fluorescent light with overlapping spectra in are the same.

在本实施例中，将发光装置发出的时序光中存在光谱重叠的其中一种荧光称为第二荧光，另一种荧光称为第三荧光。其中第二荧光与第三荧光可以为光谱部分重叠的荧光，也可以为光谱完全重叠的荧光。该第二荧光与第三荧光全开时的发光亮度不相等，也可以完全相等。其中存在光谱重叠的第二荧光和第三荧光可以为波长转换装置上的分别设置在两个不同分段区域上的波长转换层受激后出射的光，如第二荧光和第三荧光分别为设置在两个不同分段区域上的绿光波长转换层出射的光，或者分别为设置在两个不同分段区域上的红光波长转换层出射的光，或者分别为设置在两个不同分段区域上的黄光波长转换层出射的光等。举例说明如下：存在光谱重叠的第二荧光和第三荧光可以均为绿光波长转换材料受激后出射的绿光，也可以均为红光波长转换材料受激后出射的红光，或者为黄光波长转换材料受激后出射的黄光等。In this embodiment, one of the fluorescent lights with overlapping spectra in the sequential light emitted by the light emitting device is called the second fluorescent light, and the other fluorescent light is called the third fluorescent light. Wherein the second fluorescence and the third fluorescence may be fluorescence with partially overlapped spectra, or may be fluorescence with completely overlapped spectra. The luminances of the second fluorescent light and the third fluorescent light when fully turned on are not equal, and may be completely equal. The second fluorescent light and the third fluorescent light with overlapping spectra can be the light emitted by the wavelength conversion layer respectively arranged on two different segmented regions on the wavelength conversion device, such as the second fluorescent light and the third fluorescent light are respectively The light emitted from the green wavelength conversion layer arranged on two different segmented regions, or the emitted light from the red wavelength conversion layer arranged on two different segmented regions, or respectively the light emitted from the red wavelength conversion layer arranged on two different segmented regions The light emitted from the yellow light wavelength conversion layer on the segment area, etc. An example is as follows: the second fluorescent light and the third fluorescent light with overlapping spectra can both be the green light emitted by the green wavelength conversion material after being excited, or both can be the red light emitted by the red wavelength conversion material after being excited, or be The yellow light emitted by the excited wavelength conversion material, etc.

其中解码后的源图像信号中与存在光谱重叠的第二荧光和第三荧光对应的基色图像信号是指解码后的源图像信号中的基色图像信号所对应的基色与存在光谱重叠的第二荧光和第三荧光对应的基色相同，如解码后的源图像信号中的红基色图像信号与发光装置出射的覆盖红光光谱范围的光(如红光、橙光等)对应，绿基色图像信号与发光装置发出射的覆盖绿光光谱范围的光(如绿光、青绿光等)对应，而蓝基色图像信号与发光装置出射的覆盖蓝光光谱范围的光(如蓝光)对应。如：若发光装置发出的时序光中包括绿光波长转换材料受激出射的第一绿光和绿光波长转换材料受激出射的第二绿光时，解码后的源图像信号中与存在光谱重叠的第一绿光和第二绿光对应的基色图像信号为绿基色图像信号；若发光装置出射的时序光包括蓝光波长转换材料受激出射的第一蓝光和蓝光波长转换材料受激出射的第二蓝光时，解码后的源图像信号中与存在光谱重叠的第一蓝光和第二蓝光对应的基色图像信号为蓝基色图像信号。Wherein the primary color image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap in the decoded source image signal refers to the primary color corresponding to the primary color image signal in the decoded source image signal and the second fluorescent light with spectral overlap The primary color corresponding to the third fluorescent light is the same, for example, the red primary color image signal in the decoded source image signal corresponds to the light (such as red light, orange light, etc.) The light emitting from the light emitting device that covers the spectral range of green light (such as green light, cyan light, etc.) corresponds to that, and the blue primary color image signal corresponds to the light that covers the spectral range of blue light (such as blue light) emitted by the light emitting device. For example: if the sequential light emitted by the light-emitting device includes the first green light emitted by the green wavelength conversion material and the second green light emitted by the green wavelength conversion material, the decoded source image signal and the existing spectrum The primary color image signal corresponding to the overlapping first green light and the second green light is a green primary color image signal; if the sequential light emitted by the light emitting device includes the first blue light emitted by the blue light wavelength conversion material and the first blue light emitted by the blue light wavelength conversion material In the case of the second blue light, in the decoded source image signal, the primary color image signal corresponding to the first blue light and the second blue light with overlapping spectra is a blue primary color image signal.

同理，若发光装置出射的时序光包括黄光波长转换材料受激出射的第一黄光和黄光波长转换材料受激出射的第二黄光时，解码后的源图像信号中与存在光谱重叠的第一黄光和第二黄光对应的基色图像信号为黄基色图像信号。此时，需要先将解码后的包括三基色图像信号BGR的源图像信号转换成包括四基色图像信号BGRY的源图像信号。其中将解码后的包括三基色图像信号BGR的源图像信号转换成包括四基色图像信号BGRY的源图像信号的具体方法属于现有技术(如可参见公开号为CN101164096A的专利文献)，在此不再赘述。Similarly, if the sequential light emitted by the light-emitting device includes the first yellow light emitted by the yellow light wavelength conversion material and the second yellow light emitted by the yellow light wavelength conversion material, the decoded source image signal overlaps with the The primary color image signals corresponding to the first yellow light and the second yellow light are yellow primary color image signals. At this time, it is necessary to first convert the decoded source image signal including the three-primary-color image signal BGR into a source image signal including the four-primary-color image signal BGRY. Wherein the specific method of converting the decoded source image signal comprising the three-primary-color image signal BGR into a source image signal comprising the four-primary-color image signal BGRY belongs to the prior art (for example, refer to the patent document whose publication number is CN101164096A), and will not be described here Let me repeat.

在本实施例中，当发光装置出射的时序光中包括存在光谱重叠的第一绿荧光和第二绿荧光时，由于解码后的源图像信号中的绿基色图像信号与存在光谱重叠的第一绿荧光和第二绿荧光对应，因此将解码后的源图像信号中的绿基色图像信号转换成第三绿基色控制信号和第四绿基色控制信号，其中第一绿荧光和第二绿荧光可以均为绿光波长转换材料受激出射的；In this embodiment, when the sequential light emitted by the light emitting device includes the first green fluorescent light and the second green fluorescent light with overlapping spectra, since the green primary color image signal in the decoded source image signal and the first green fluorescent light with overlapping spectral The green fluorescent light corresponds to the second green fluorescent light, so the green primary color image signal in the decoded source image signal is converted into a third green primary color control signal and a fourth green primary color control signal, wherein the first green fluorescent light and the second green fluorescent light can be Both are green light wavelength conversion materials that are stimulated to emit;

当发光装置出射的时序光中包括存在光谱重叠的第一黄荧光和第二黄荧光时，可以先对解码后的源图像信号进行转换，使转换后的源图像信号中包含黄基色图像信号，由于转换后的源图像信号中的黄基色图像信号与存在光谱重叠的第一黄荧光和第二黄荧光对应，因此将转换后的源图像信号中的黄基色图像信号转换成第三黄基色控制信号和第四黄基色控制信号，其中第一黄荧光和第二黄荧光可以均为黄光波长转换材料受激出射的；When the sequential light emitted by the light-emitting device includes the first yellow fluorescent light and the second yellow fluorescent light with overlapping spectra, the decoded source image signal can be converted first, so that the converted source image signal includes the yellow primary color image signal, Since the yellow primary color image signal in the converted source image signal corresponds to the first yellow fluorescent light and the second yellow fluorescent light with overlapping spectra, the yellow primary color image signal in the converted source image signal is converted into the third yellow primary color control signal and the fourth yellow primary color control signal, wherein the first yellow fluorescent light and the second yellow fluorescent light can both be stimulated to emit from the yellow light wavelength conversion material;

当发光装置出射的时序光中包括的存在光谱重叠的第二荧光和第三荧光分别为第一绿荧光和第二绿荧光，以及第一黄荧光和第二黄荧光，则可以将解码后的源图像信号中的绿基色图像信号转换成第三绿基色控制信号和第四绿基色控制信号，和/或，将由解码后的源图像信号转换得到的源图像信号中的黄基色图像信号转换成第三黄基色控制信号和第四黄基色控制信号。When the second fluorescent light and the third fluorescent light with overlapping spectra included in the sequential light emitted by the light emitting device are the first green fluorescent light and the second green fluorescent light, and the first yellow fluorescent light and the second yellow fluorescent light, the decoded The green primary color image signal in the source image signal is converted into a third green primary color control signal and a fourth green primary color control signal, and/or, the yellow primary color image signal in the source image signal converted from the decoded source image signal is converted into The third primary yellow control signal and the fourth primary yellow control signal.

具体的，在将解码后的源图像信号中的一种基色图像信号转换成第三基色控制信号和第四基色控制信号时，需要使得存在光谱重叠的第二荧光和第三荧光混合后的亮度与解码后的源图像信号中的对应基色图像信号的亮度相同。Specifically, when one of the primary color image signals in the decoded source image signal is converted into a third primary color control signal and a fourth primary color control signal, it is necessary to make the brightness of the mixed second fluorescent light and the third fluorescent light with overlapping spectra It is the same as the brightness of the corresponding primary color image signal in the decoded source image signal.

在本发明优选实施例中，在将解码后的源图像信号中的一种基色图像信号转换成第三基色控制信号和第四基色控制信号时，其中第三基色控制信号和第四基色控制信号满足如下要求：In a preferred embodiment of the present invention, when one primary color image signal in the decoded source image signal is converted into a third primary color control signal and a fourth primary color control signal, wherein the third primary color control signal and the fourth primary color control signal Meet the following requirements:

其中为解码后的源图像信号中的与存在光谱重叠的第二荧光和第三荧光对应的基色图像信号的亮度，为存在光谱重叠的第二荧光和第三荧光混合后的亮度；in is the brightness of the primary color image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap in the decoded source image signal, is the brightness after mixing the second fluorescent light and the third fluorescent light with overlapping spectra;

其中L_C2’为存在光谱重叠的第二荧光和第三荧光均全开时的亮度，L_C21为存在光谱重叠的第二荧光全开时的亮度，L_C22为存在光谱重叠的第三荧光全开时的亮度，C2、C21、C22均为基色光标识，如C2可以为R、G、B等，其中L_C2’等于存在光谱重叠的第二荧光全开时的亮度L_C21与第三荧光全开时的亮度L_C22之和；Among them, L _C2 ' is the brightness when the second fluorescent light with spectral overlap and the third fluorescent light are both fully on, L _C21 is the brightness when the second fluorescent light with spectral overlap is fully on, and L _C22 is the brightness when the third fluorescent light with spectral overlap is fully on The brightness when it is on, C2, C21, and C22 are all primary color light marks, such as C2 can be R, G, B, etc., where L _C2 ' is equal to the brightness L _C21 and the third fluorescent light when the second fluorescent light with spectral overlap is fully on The sum of the brightness L and _C22 when fully open;

b为所述解码后的源图像信号中的与存在光谱重叠的第二荧光和第三荧光对应的基色图像信号，b1为第三基色控制信号，b2为第四基色控制信号，且b、b1、b2均为大于或等于0且小于或等于K的整数，K为空间光调制装置所能达到的最大灰度值。b is the primary color image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap in the decoded source image signal, b1 is the third primary color control signal, b2 is the fourth primary color control signal, and b, b1 , b2 are integers greater than or equal to 0 and less than or equal to K, where K is the maximum grayscale value that the spatial light modulation device can achieve.

可选的，L_C21和L_C22相等或者不等。在本实施例中，可以通过将波长转换装置上设置有可出射第二荧光的波长转换层的分段区域的角度与设置有可出射第三荧光的波长转换层的分段区域的角度相同，从而使得L_C21和L_C22相等。举例说明如下：当第二荧光为第一绿光，第三荧光为第二绿光时，可以将波长转换装置上的设置有可出射第一绿光的绿光波长转换层的分段区域的角度与设置有可出射第二绿光的绿光波长转换层的分段区域的角度相同，从而可以使得第一绿光的亮度L_G1和第二绿光的亮度L_G2相同。Optionally, L _C21 and L _C22 are equal or not equal. In this embodiment, by making the angle of the segmented region provided with the wavelength conversion layer capable of emitting the second fluorescent light on the wavelength conversion device the same as the angle of the segmented region provided with the wavelength conversion layer capable of emitting the third fluorescent light, Thus making _LC21 and _LC22 equal. An example is as follows: when the second fluorescent light is the first green light and the third fluorescent light is the second green light, the segmented area of the wavelength conversion device provided with the green wavelength conversion layer capable of emitting the first green light can be The angle is the same as that of the segmented region provided with the green wavelength conversion layer capable of emitting the second green light, so that the brightness _LG1 of the first green light and the brightness _LG2 of the second green light can be the same.

当将L_C21和L_C22设置成相等时，上述的第三基色控制信号和第四基色控制信号满足的要求简化成：When _LC21 and _LC22 are set to be equal, the above-mentioned requirements of the third primary color control signal and the fourth primary color control signal are simplified to:

2b＝b1+b22b=b1+b2

实施例四Embodiment four

本实施例提供的控制方法是在上述实施例一或者实施例二的基础上所做的进一步改进，其中未详细描述的部分请参照上述实施例一和实施例二。当发光装置出射的时序光中还包括时序的且存在光谱重叠的第二激光和第三激光时，将解码后的源图像信号转换为调制控制信号还包括：The control method provided in this embodiment is a further improvement made on the basis of the first or second embodiment above, and for the parts not described in detail, please refer to the first and second embodiments above. When the time-sequential light emitted by the light-emitting device also includes the time-sequential second laser light and the third laser light with overlapping spectra, converting the decoded source image signal into a modulation control signal further includes:

将解码后的源图像信号中的与存在光谱重叠的第二激光和第三激光对应的至少一种基色图像信号转换成第五基色控制信号和第六基色控制信号，并通过第五基色控制信号和第六基色控制信号控制空间光调制装置分别对存在光谱重叠的第二激光和第三激光进行调制，其中存在光谱重叠的第二激光和第三激光混合后的亮度与解码后的源图像信号中的与存在光谱重叠的第二激光和第三激光对应的基色图像信号的亮度相同。converting at least one primary color image signal in the decoded source image signal corresponding to the second laser and the third laser with overlapping spectra into a fifth primary color control signal and a sixth primary color control signal, and passing the fifth primary color control signal and the sixth primary color control signal control the spatial light modulation device to respectively modulate the second laser and the third laser with overlapping spectra, wherein the mixed brightness of the second and third lasers with overlapping spectra is different from the decoded source image signal The luminances of the primary color image signals corresponding to the second laser light and the third laser light with overlapped spectra in , are the same.

在本实施例中，将发光装置发出的时序光中存在光谱重叠的其中一种激光称为第二激光，另一种激光称为第三激光。其中第二激光和第三激光可以为光谱部分重叠的激光，也可以为光谱完全重叠的激光。该第二激光和第三激光全开时的发光亮度不相等，也可以完全相等。其中存在光谱重叠的第二激光和第三激光可以为波长转换装置上的分别设置在两个不同分段区域上的散射层散射出射的光，如该第二激光和第三借光可以为分别设置在两个不同分段区域上的散射层散射出射的蓝激光等。In this embodiment, one of the lasers with overlapping spectra in the sequential light emitted by the light emitting device is referred to as the second laser, and the other laser is referred to as the third laser. Wherein the second laser and the third laser may be lasers whose spectra partially overlap, or lasers whose spectra completely overlap. The luminances of the second laser and the third laser when fully turned on are not equal, and may be completely equal. The second laser and the third laser with overlapping spectra can be the scattered light emitted by the scattering layers respectively arranged on two different segmented regions on the wavelength conversion device, such as the second laser and the third borrowed light can be separately arranged The scattering layer on the two different segmented areas scatters the outgoing blue laser light and the like.

其中解码后的源图像信号中与存在光谱重叠的第二激光和第三激光对应的基色图像信号是指解码后的源图像信号中的基色图像信号所对应的基色与存在光谱重叠的第二激光和第三激光对应的基色相同，如解码后的源图像信号中的红基色图像信号与发光装置出射的覆盖红光光谱范围的光对应，绿基色图像信号与发光装置发出射的覆盖绿光光谱范围的光对应，而蓝基色图像信号与发光装置出射的覆盖蓝光光谱范围的光对应。如：若发光装置发出的时序光中包括分别设置在两个不同分段区域上的散射层散射出射的第一蓝光和第二蓝光时，解码后的源图像信号中与存在光谱重叠的第一蓝光和第二蓝光对应的基色图像信号为蓝基色图像信号。Wherein the primary color image signal corresponding to the second laser and the third laser with spectral overlap in the decoded source image signal refers to the primary color corresponding to the primary color image signal in the decoded source image signal and the second laser with spectral overlap The primary color corresponding to the third laser is the same. For example, the red primary color image signal in the decoded source image signal corresponds to the light covering the red spectrum range emitted by the light emitting device, and the green primary color image signal corresponds to the light covering the green light spectrum emitted by the light emitting device. The blue primary color image signal corresponds to the light covering the blue spectral range emitted by the light emitting device. For example, if the sequential light emitted by the light-emitting device includes the first blue light and the second blue light scattered and emitted by the scattering layers respectively arranged on two different segmented regions, the decoded source image signal overlaps with the first blue light having a spectrum. The primary color image signal corresponding to the blue light and the second blue light is a blue primary color image signal.

在本实施例中，当发光装置出射的时序光中包括存在光谱重叠的第一蓝激光和第二蓝激光时，由于解码后的源图像信号中的蓝基色图像信号与存在光谱重叠的第一蓝光和第二蓝光对应，因此将解码后的源图像信号中的蓝基色图像信号转换成第五蓝基色控制信号和第四六基色控制信号。In this embodiment, when the sequential light emitted by the light emitting device includes the first blue laser light and the second blue laser light with overlapping spectra, since the blue primary color image signal in the decoded source image signal and the first blue laser light with overlapping spectra The blue light corresponds to the second blue light, so the blue primary color image signal in the decoded source image signal is converted into the fifth blue primary color control signal and the fourth and sixth primary color control signals.

具体的，在将解码后的源图像信号中的一种基色图像信号转换成第五基色控制信号和第六基色控制信号时，需要使得存在光谱重叠的第二激光和第三激光混合后的亮度与解码后的源图像信号中的与存在光谱重叠的第二激光和第三激光对应的基色图像信号的亮度相同。Specifically, when converting one of the primary color image signals in the decoded source image signal into the fifth primary color control signal and the sixth primary color control signal, it is necessary to make the brightness of the mixed second laser and the third laser with overlapping spectra The brightness of the primary color image signal corresponding to the second laser light and the third laser light with spectral overlap in the decoded source image signal is the same.

在本发明优选实施例中，在将解码后的源图像信号中的一种基色图像信号转换成第五基色控制信号和第六基色控制信号时，第五基色控制信号和第六基色控制信号满足如下要求：In a preferred embodiment of the present invention, when one primary color image signal in the decoded source image signal is converted into a fifth primary color control signal and a sixth primary color control signal, the fifth primary color control signal and the sixth primary color control signal satisfy The following requirements:

$\frac{c c}{K K} {L L}_{C C 33}^{,,} = = \frac{c c 11}{K K} {L L}_{C C 3131} + + \frac{c c 22}{K K} {L L}_{C C 3232};;$

其中为解码后的源图像信号中的与存在光谱重叠的第二激光和第三激光对应的基色图像信号的亮度，为存在光谱重叠的第二激光和第三激光混合后的亮度；in is the brightness of the primary color image signal corresponding to the second laser light and the third laser light with spectral overlap in the decoded source image signal, is the brightness after mixing the second laser and the third laser with overlapping spectra;

其中L_C3’为存在光谱重叠的第二激光和第三激光均全开时的亮度，L_C31为存在光谱重叠的第二激光全开时的亮度，L_C32为存在光谱重叠的第三激光全开时的亮度，C3、C31、C32均为基色光标识，如C3可以为R、G、B等，其中L_C3’等于存在光谱重叠的第二激光全开时的亮度L_C31与第三激光全开时的亮度L_C32之和；Among them, _{LC3' is the brightness when the second laser and the third laser with spectral overlap are fully turned on, LC31 is the brightness when the second laser with spectral overlap is fully turned on, and LC32} _is _the brightness of the third laser with spectral overlap The brightness when it is on, C3, C31, and C32 are the primary color light marks, such as C3 can be R, G, B, etc., where L _C3 ' is equal to the brightness L _C31 and the third laser when the second laser with spectral overlap is fully on Sum of brightness L _C32 when fully open;

c为解码后的源图像信号中的与存在光谱重叠的第二激光和第三激光对应的基色图像信号，c1为第五基色控制信号，c2为第六基色控制信号，且c、c1、c2均为大于或等于0且小于或等于K的整数，K为空间光调制装置所能达到的最大灰度值。c is the primary color image signal corresponding to the second laser and the third laser with overlapping spectra in the decoded source image signal, c1 is the fifth primary color control signal, c2 is the sixth primary color control signal, and c, c1, c2 are integers greater than or equal to 0 and less than or equal to K, where K is the maximum gray value that the spatial light modulation device can achieve.

可选的，L_C31和L_C32相等或者不等。在本实施例中，可以通过将波长转换装置上设置有可出射第二激光的散射层的分段区域的角度与设置有可出射第三激光的波长转换层的分段区域的角度相同，从而使得L_C31和L_C32相等。举例说明如下：当第二激光为第一蓝光，第三激光为第二蓝光时，可以将波长转换装置上的设置有可出射第一蓝光的散射层的分段区域的角度与设置有可出射第二蓝光的散射层的分段区域的角度相同，从而可以使得第一蓝光的亮度L_B1和第二蓝光的亮度L_B2相同。Optionally, L _C31 and L _C32 are equal or not equal. In this embodiment, the angle of the segmented area provided with the scattering layer capable of emitting the second laser light on the wavelength conversion device is the same as the angle of the segmented area provided with the wavelength conversion layer capable of emitting the third laser light, so that _{Make LC31} and _LC32 equal. An example is as follows: when the second laser light is the first blue light and the third laser light is the second blue light, the angle of the segmented area provided with the scattering layer capable of emitting the first blue light on the wavelength conversion device can be compared with the angle of the segmented area provided with the emitting layer capable of emitting the first blue light. The angles of the segmented regions of the scattering layer of the second blue light are the same, so that the brightness L _B1 of the first blue light and the brightness L _B2 of the second blue light are the same.

当将L_C31和L_C32设置成相等时，上述的第五基色控制信号和第六基色控制信号满足的要求简化成：When _LC31 and _LC32 are set equal, the requirements satisfied by the fifth primary color control signal and the sixth primary color control signal are simplified as:

2c＝c1+c22c=c1+c2

为了更清楚的说明本发明实施例提供的投影显示系统的控制方法，以下以一个具体的示例进行更为详细的说明，其中发光装置的波长转换装置采用图4所示的波长转换装置：In order to more clearly illustrate the control method of the projection display system provided by the embodiment of the present invention, a specific example is used for a more detailed description below, wherein the wavelength conversion device of the light emitting device adopts the wavelength conversion device shown in Figure 4:

发光装置出射的时序光为时序的BGOBGR，则获取解码后的源图像信号中的三基色图像信号BGR，将该三基色图像信号BGR转换成调制控制信号B1G1R1B2G2R2。其具体过程如下：The time-sequential light emitted by the light emitting device is a time-sequence BGOBGR, then the three-primary-color image signal BGR in the decoded source image signal is obtained, and the three-primary-color image signal BGR is converted into a modulation control signal B1G1R1B2G2R2. The specific process is as follows:

将三基色图像信号中的R基色图像信号转换成第一R基色控制信号R1和第二R基色控制信号R2，将三基色图像信号中的G基色图像信号转换成第三G基色控制信号G1和第四G基色控制信号G2，将三基色图像信号中的B基色图像信号转换成第五B基色控制信号B1和第六B基色控制信号B2。Convert the R primary color image signal in the three primary color image signals into the first R primary color control signal R1 and the second R primary color control signal R2, convert the G primary color image signal in the three primary color image signals into the third G primary color control signal G1 and The fourth G primary color control signal G2 converts the B primary color image signal among the three primary color image signals into a fifth B primary color control signal B1 and a sixth B primary color control signal B2.

第一R基色控制信号R1和第二R基色控制信号R2需满足如下要求：The first R primary color control signal R1 and the second R primary color control signal R2 need to meet the following requirements:

$x x = = \frac{\frac{{x x}_{11}}{{y the y}_{11}} \cdot \cdot \frac{a a 11}{K K} \cdot &Center Dot; {L L}_{R R} + + \frac{{x x}_{22}}{{y the y}_{22}} \cdot &Center Dot; \frac{a a 22}{K K} \cdot &Center Dot; {L L}_{O o}}{\frac{11}{{y the y}_{11}} \cdot &Center Dot; \frac{a a 11}{K K} \cdot \cdot {L L}_{R R} + + \frac{11}{{y the y}_{22}} \cdot &Center Dot; \frac{a a 22}{K K} \cdot &Center Dot; {L L}_{O o}}$

$y the y = = \frac{\frac{a a 11}{K K} \cdot \cdot {L L}_{R R} + + \frac{a a 22}{K K} \cdot \cdot {L L}_{O o}}{\frac{11}{{y the y}_{11}} \cdot &Center Dot; \frac{a a 11}{K K} \cdot &Center Dot; {L L}_{R R} + + \frac{11}{{y the y}_{22}} \cdot \cdot \frac{a a 22}{K K} \cdot &Center Dot; {L L}_{O o}}$

第三G基色控制信号G1和第四G基色控制信号G2需满足如下要求：The third G primary color control signal G1 and the fourth G primary color control signal G2 need to meet the following requirements:

$\frac{b b}{K K} {L L}_{G G}^{,,} = = \frac{b b 11}{K K} {L L}_{{G G}^{,,}} + + \frac{b b 22}{K K} {L L}_{G G}$

其中，L_G’为存在光谱重叠的两个绿光均全开时的亮度，L_G’为其中一个绿光全开时的亮度，L_G为另一个绿光全开时的亮度；b为解码后的源图像信号中的绿基色图像信号，b1为第三G基色控制信号，b2为第四G基色控制信号，且b、b1、b2均为大于或等于0且小于或等于K的整数，K为空间光调制装置所能达到的最大灰度值。Among them, L _G 'is the brightness of the two green lights with spectral overlap when they are fully turned on, L _G' is the brightness of one of the green lights when it is fully turned on, and L _G is the brightness of the other green light when it is fully turned on; b is For the green primary color image signal in the decoded source image signal, b1 is the third G primary color control signal, b2 is the fourth G primary color control signal, and b, b1, and b2 are all integers greater than or equal to 0 and less than or equal to K , K is the maximum gray value that the spatial light modulation device can achieve.

其中第五B基色控制信号B1和第六B基色控制信号B2需满足如下要求：Among them, the fifth B primary color control signal B1 and the sixth B primary color control signal B2 need to meet the following requirements:

$\frac{c c}{K K} {L L}_{B B}^{,,} = = \frac{c c 11}{K K} {L L}_{{B B}^{,,}} + + \frac{c c 22}{K K} {L L}_{B B}$

其中，L_B’为存在光谱重叠的两个蓝光均全开时的亮度，L_B’为其中一个蓝光全开时的亮度，L_B为另一个蓝光全开时的亮度；c为解码后的源图像信号中的蓝基色图像信号，c1为第五B基色控制信号，c2为第六B基色控制信号，且c、c1、c2均为大于或等于0且小于或等于K的整数，K为空间光调制装置所能达到的最大灰度值。Among them, L _B 'is the brightness of two blue lights with spectral overlap when both are fully turned on, L _B 'is the brightness of one of the blue lights when it is fully turned on, and L _B is the brightness of the other blue light when it is fully turned on; c is the decoded For the blue primary color image signal in the source image signal, c1 is the fifth B primary color control signal, c2 is the sixth B primary color control signal, and c, c1, and c2 are all integers greater than or equal to 0 and less than or equal to K, and K is The maximum gray value that a spatial light modulation device can achieve.

在本发明优选实施例中，可以通过将波长转换装置改进为图4或者6所示波长转换装置，从而可以直接使用现有的六段式色轮或者八段式色轮的DDP本征程序，使得R光和O光均对应R信号，从而实现R光和O光时序混合得到红基色光。In a preferred embodiment of the present invention, by improving the wavelength conversion device to the wavelength conversion device shown in Figure 4 or 6, the DDP intrinsic program of the existing six-segment color wheel or eight-segment color wheel can be directly used, Both the R light and the O light correspond to the R signal, so that the time-sequential mixing of the R light and the O light is realized to obtain the red primary color light.

实施例五Embodiment five

图10示出了本发明另一实施例提供的投影显示设备的控制方法的实现流程，该方法包括：Fig. 10 shows the implementation process of a method for controlling a projection display device provided by another embodiment of the present invention, the method includes:

S1001，获取解码后的源图像信号中各基色图像信号。S1001. Acquire each primary color image signal in the decoded source image signal.

S1002，将解码后的源图像信号转换为调制控制信号，并通过该调制控制信号控制空间光调制装置对时序光进行调制。S1002. Convert the decoded source image signal into a modulation control signal, and use the modulation control signal to control the spatial light modulation device to modulate the time-sequential light.

其中将解码后的源图像信号转换为调制控制信号，并通过该调制控制信号控制空间光调制装置对时序光进行调制的具体过程如下：The specific process of converting the decoded source image signal into a modulation control signal, and controlling the spatial light modulation device to modulate the sequential light through the modulation control signal is as follows:

将解码后的源图像信号转换为包括第一基色调制信号和第二基色调制信号的调制控制信号，并通过第一基色调制信号和第二基色调制信号控制空间光调制装置分别对存在光谱重叠的第一激光和第一荧光进行调制。其中将解码后的源图像信号转换为包括第一基色调制信号和第二基色调制信号的调制控制信号的具体过程属于现有技术，具体可参见公开号为CN101164096A的专利文献。举例说明如下：Converting the decoded source image signal into a modulation control signal including the first primary color modulation signal and the second primary color modulation signal, and controlling the spatial light modulation device to control the spectral overlap by the first primary color modulation signal and the second primary color modulation signal respectively The first laser light and the first fluorescent light are modulated. The specific process of converting the decoded source image signal into a modulation control signal including the first primary color modulation signal and the second primary color modulation signal belongs to the prior art, and details can be found in the patent document with publication number CN101164096A. Examples are as follows:

假设发光装置的波长转换装置如图3所示，则该发光装置出射时序的BGOR光，此时，将解码后的源图像信号BGR转换为包括第一基色调制信号O和第二基色调制信号R的调制控制信号BGOR，其中第一基色调制信号O用于控制空间光调制装置对发光装置出射的时序光中的O光进行调制，第二基色调制信号R用于控制空间光调制装置对发光装置出射的时序光中的R光进行调制。通过该调制控制信号BGOR控制空间光调制装置的调制时，通过该调制控制信号BGOR依次控制发光装置出射的时序的BGOR。Assuming that the wavelength conversion device of the light-emitting device is as shown in Figure 3, the light-emitting device emits sequential BGOR light. At this time, the decoded source image signal BGR is converted to include the first primary color modulation signal O and the second primary color modulation signal R Modulation control signal BGOR, wherein the first primary color modulation signal O is used to control the spatial light modulation device to modulate the O light in the sequential light emitted by the light emitting device, and the second primary color modulation signal R is used to control the spatial light modulation device to modulate the light emission of the light emitting device The R light in the emitted sequential light is modulated. When the modulation of the spatial light modulation device is controlled by the modulation control signal BGOR, the timing BGOR of the emission from the light emitting device is sequentially controlled by the modulation control signal BGOR.

S1003，根据预设的与存在光谱重叠的第一激光和第一荧光对应的基色光的目标色坐标，将所述第一荧光全部用于对所述第一激光进行校正。S1003. According to the preset target color coordinates of the primary color light corresponding to the first laser light and the first fluorescent light with overlapping spectra, use all the first fluorescent light to correct the first laser light.

其中将一种光全部用于对另一种光进行校正的算法可采用现有技术提供的任意一种色坐标校正(Color Coordinate Adjustment，CCA)算法，如DDP本征程序中的CCA校正算法。The algorithm in which all one light is used to correct the other light may adopt any color coordinate adjustment (CCA) algorithm provided by the prior art, such as the CCA correction algorithm in the DDP intrinsic program.

在本发明优选实施例中，可以采用现有的DDP本征程序并通过对DDP本征程序中的CCA算法进行改进来实现本发明实施例提供的控制方法，详述如下，以采用图3所示的波长转换装置为例：In the preferred embodiment of the present invention, the control method provided by the embodiment of the present invention can be implemented by using the existing DDP intrinsic program and improving the CCA algorithm in the DDP intrinsic program, as described in detail below, so as to adopt the control method shown in Figure 3 Take the wavelength conversion device shown as an example:

在DDP本征程序的初始化设置中，按照波长转换装置实际包括的四段式分段区域设置DDP本征程序中的色轮段数以及每个分段的角度，DDP本征程序将解码后的源图像信号BGR转换成调制控制信号BGRO，并通过该调制控制信号BGRO控制空间光调制装置依次对发光装置出射的BGRO光进行调制，从而得到四边形色域的图像，再通过改进后的DDP本征程序中的CCA算法将O光全部用于校正R光，以实现将R光和O光作为一种基色光的目的，从而得到三边形色域的图像。In the initialization setting of the DDP intrinsic program, set the number of color wheel segments and the angle of each segment in the DDP intrinsic program according to the four-segment segment area actually included in the wavelength conversion device, and the DDP intrinsic program will decode the source The image signal BGR is converted into a modulation control signal BGRO, and the spatial light modulation device is controlled by the modulation control signal BGRO to sequentially modulate the BGRO light emitted by the light-emitting device, so as to obtain an image of a quadrilateral color gamut, and then through the improved DDP intrinsic program In the CCA algorithm, all O light is used to correct R light, so as to achieve the purpose of using R light and O light as a primary color light, so as to obtain an image of a triangular color gamut.

在本实施例中，通过将解码后的源图像信号转换为调制控制信号，并通过该调制控制信号控制空间光调制装置对发光装置出射的时序光进行调制，再根据预设的与存在光谱重叠的第一激光和第一荧光对应的基色光的目标色坐标，将第一荧光全部用于对第一激光进行校正，从而实现将第一荧光和第一激光作为一种基色光进行处理。In this embodiment, the decoded source image signal is converted into a modulation control signal, and the modulation control signal is used to control the spatial light modulation device to modulate the sequential light emitted by the light emitting device, and then according to the preset and existing spectral overlap The target color coordinates of the primary color light corresponding to the first laser light and the first fluorescent light, and all the first fluorescent light is used to correct the first laser light, so that the first fluorescent light and the first laser light can be treated as a primary color light.

实施例六Embodiment six

本实施例提供了上述图2所示的控制装置的结构简介。该控制装置包括第一控制单元(图未示出)。该第一控制单元用于将解码后的源图像信号中与存在光谱重叠的第一激光和第一荧光对应的至少一种基色图像信号转换为第一基色控制信号和第二基色控制信号，并通过第一基色控制信号和第二基色控制信号控制空间光调制装置分别对存在光谱重叠的第一激光和第一荧光进行调制，其中存在光谱重叠的第一激光和第一荧光混合后的亮度与解码后的源图像信号中的对应基色图像信号的亮度相同，存在光谱重叠的第一激光和第一荧光混合后的色坐标与解码后的源图像信号中的对应基色图像信号的色坐标相同。This embodiment provides an overview of the structure of the control device shown in FIG. 2 above. The control device includes a first control unit (not shown). The first control unit is configured to convert at least one primary color image signal in the decoded source image signal corresponding to the first laser light and the first fluorescent light with overlapping spectra into a first primary color control signal and a second primary color control signal, and The spatial light modulation device is controlled by the first primary color control signal and the second primary color control signal to respectively modulate the first laser light and the first fluorescent light with overlapping spectra, wherein the mixed brightness of the first laser light and the first fluorescent light with overlapping spectral spectra is the same as The brightness of the corresponding primary color image signals in the decoded source image signal is the same, and the color coordinates of the mixed first laser light and first fluorescent light with overlapping spectra are the same as the color coordinates of the corresponding primary color image signals in the decoded source image signal.

具体的，该第一控制单元包括第一信号转换模块(图未示出)，该第一信号转换模块用于将解码后的源图像信号中的至少一种基色图像信号转换成第一基色控制信号和第二基色控制信号，其中第一基色控制信号和第二基色控制信号满足如下要求：Specifically, the first control unit includes a first signal conversion module (not shown in the figure), and the first signal conversion module is used to convert at least one primary color image signal in the decoded source image signal into a first primary color control signal and the second primary color control signal, wherein the first primary color control signal and the second primary color control signal meet the following requirements:

$x x = = \frac{\frac{{x x}_{11}}{{y the y}_{11}} \cdot &Center Dot; \frac{a a 11}{K K} \cdot &Center Dot; {L L}_{C C 1111} + + \frac{{x x}_{22}}{{y the y}_{22}} \cdot &Center Dot; \frac{a a 22}{K K} \cdot &Center Dot; {L L}_{C C 1212}}{\frac{11}{{y the y}_{11}} \cdot &Center Dot; \frac{a a 11}{K K} \cdot &Center Dot; {L L}_{C C 1111} + + \frac{11}{{y the y}_{22}} \cdot \cdot \frac{a a 22}{K K} \cdot \cdot {L L}_{C C 1212}}$

$y the y = = \frac{\frac{a a 11}{K K} \cdot \cdot {L L}_{C C 1111} + + \frac{a a 22}{K K} \cdot &Center Dot; {L L}_{C C 1212}}{\frac{11}{{y the y}_{11}} \cdot &Center Dot; \frac{a a 11}{K K} \cdot &Center Dot; {L L}_{C C 1111} + + \frac{11}{{y the y}_{22}} \cdot &Center Dot; \frac{a a 22}{K K} \cdot &Center Dot; {L L}_{C C 1212}}$

其中，L_C1’为存在光谱重叠的第一激光和第一荧光均全开时的亮度，L_C11为存在光谱重叠的第一激光全开时的亮度，L_C12为存在光谱重叠的第一荧光全开时的亮度，C1、C11、C12均为基色光标识；Among them, L _C1 ' is the brightness when both the first laser and the first fluorescent light with spectral overlap are fully on, L _C11 is the brightness when the first laser with spectral overlap is fully on, and L _C12 is the first fluorescent light with spectral overlap The brightness when fully turned on, C1, C11, and C12 are all primary color light marks;

a为解码后的源图像信号中与存在光谱重叠的第一激光和第一荧光对应的基色图像信号，a1为第一基色控制信号，a2为第二基色控制信号，且a、a1、a2均为大于或等于0且小于或等于K的整数，K为空间光调制装置所能达到的最大灰度值。a is the primary color image signal corresponding to the first laser light and the first fluorescent light with overlapping spectra in the decoded source image signal, a1 is the first primary color control signal, a2 is the second primary color control signal, and a, a1, and a2 are all is an integer greater than or equal to 0 and less than or equal to K, and K is the maximum gray value that the spatial light modulation device can achieve.

其中在本实施例中，当发光装置发出的时序光中包括的第一激光和第一荧光分别为红激光和橙光波长转换材料受激发出的橙光，和/或，青绿激光和绿光波长转换材料受激产生的绿光时，可以将解码后的源图像信号中的红基色图像信号转换成第一红基色控制信号和第二红基色控制信号，和/或，将解码后的源图像信号中的绿基色图像信号转换成第一绿基色控制信号和第二绿基色控制信号。Wherein in this embodiment, when the first laser light and the first fluorescent light included in the sequential light emitted by the light-emitting device are respectively red laser light and orange light emitted by the orange wavelength conversion material, and/or cyan laser light and green light When the wavelength conversion material is excited to generate green light, the red primary color image signal in the decoded source image signal can be converted into a first red primary color control signal and a second red primary color control signal, and/or, the decoded source The green primary color image signal among the image signals is converted into a first green primary color control signal and a second green primary color control signal.

在本发明优选实施例中，当时序的至少一荧光包括时序的且存在光谱重叠的第二荧光和第三荧光时，该控制装置还包括第二控制单元(图未示出)。该第二控制单元用于将解码后的源图像信号中的与存在光谱重叠的所述第二荧光和第三荧光对应的至少一种基色图像信号转换成第三基色控制信号和第四基色控制信号，并通过第三基色控制信号和第四基色控制信号控制空间光调制装置分别对存在光谱重叠的第二荧光和第三荧光进行调制，其中存在光谱重叠的第二荧光和第三荧光混合后的亮度与解码后的源图像信号中的与存在光谱重叠的第二荧光和第三荧光对应的基色图像信号的亮度相同。In a preferred embodiment of the present invention, when the sequential at least one fluorescent light includes a sequential second fluorescent light and a third fluorescent light with overlapping spectra, the control device further includes a second control unit (not shown in the figure). The second control unit is used to convert at least one primary color image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap in the decoded source image signal into a third primary color control signal and a fourth primary color control signal. signal, and through the third primary color control signal and the fourth primary color control signal to control the spatial light modulation device to modulate the second fluorescent light and the third fluorescent light with overlapping spectra respectively, wherein the second fluorescent light and the third fluorescent light with overlapping spectral spectra are mixed The brightness of is the same as the brightness of the primary color image signal corresponding to the second fluorescent light and the third fluorescent light with overlapping spectra in the decoded source image signal.

具体的，该第二控制单元包括第二信号转换单元(图未示出)，该第二信号转换单元用于将解码后的源图像信号中的与存在光谱重叠的第二荧光和第三荧光对应的至少一种基色图像信号转换成第三基色控制信号和第四基色控制信号，其中第三基色控制信号和第四基色控制信号满足如下要求：Specifically, the second control unit includes a second signal conversion unit (not shown in the figure), and the second signal conversion unit is used to convert the second fluorescent light and the third fluorescent light that overlap with the existing spectrum in the decoded source image signal The corresponding at least one primary color image signal is converted into a third primary color control signal and a fourth primary color control signal, wherein the third primary color control signal and the fourth primary color control signal meet the following requirements:

其中L_C2’为存在光谱重叠的第二荧光和第三荧光均全开时的亮度，L_C21为存在光谱重叠的第二荧光全开时的亮度，L_C22为存在光谱重叠的第三荧光全开时的亮度，C2、C21、C22均为基色光标识；Among them, L _C2 ' is the brightness when the second fluorescent light with spectral overlap and the third fluorescent light are both fully on, L _C21 is the brightness when the second fluorescent light with spectral overlap is fully on, and L _C22 is the brightness when the third fluorescent light with spectral overlap is fully on The brightness when it is on, C2, C21, and C22 are all primary color light marks;

b为解码后的源图像信号中的与存在光谱重叠的第二荧光和第三荧光对应的基色图像信号，b1为第三基色控制信号，b2为第四基色控制信号，且b、b1、b2均为大于或等于0且小于或等于K的整数，K为空间光调制装置所能达到的最大灰度值。b is the primary color image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap in the decoded source image signal, b1 is the third primary color control signal, b2 is the fourth primary color control signal, and b, b1, b2 are integers greater than or equal to 0 and less than or equal to K, where K is the maximum gray value that the spatial light modulation device can achieve.

具体的，该存在光谱重叠的第二荧光和第三荧光均为绿光波长转换材料受激后出射的绿光，此时将解码后的源图像信号中的绿基色图像信号转换为第三绿基色控制信号和第四绿基色控制信号，并通过第三绿基色控制信号和第四绿基色控制信号控制空间光调制装置分别对发光装置发出的时序的两种绿光进行调制。Specifically, the second fluorescent light and the third fluorescent light with overlapping spectra are both green light emitted by the green light wavelength conversion material after being excited. At this time, the green primary color image signal in the decoded source image signal is converted into the third green light The primary color control signal and the fourth primary green color control signal, and through the third primary green color control signal and the fourth primary green color control signal, the spatial light modulation device is controlled to modulate the two kinds of green lights in time sequence emitted by the light emitting device.

以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或者直接、间接运用在其他相关的技术领域，均视为包括在本发明的专利保护范围内。The above is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure made by using the description of the present invention and the contents of the accompanying drawings or directly or indirectly used in other related technical fields shall be regarded as included in the scope of patent protection of the present invention.

Claims

1. A method for controlling a projection display system, the projection display system comprising a spatial light modulation device and a light emitting device capable of emitting time-sequential light, the time-sequence light comprising at least one laser light of time sequence and at least one fluorescent light of time sequence, the time sequence There is spectral overlap between at least one first laser in at least one laser and at least one first fluorescent in at least one fluorescent light in the time sequence, wherein the control method includes:

Obtaining each primary color image signal in the decoded source image signal;

converting the decoded source image signal into a modulation control signal, and controlling the spatial light modulation device to modulate the sequential light through the modulation control signal, wherein the decoded source image signal is converted into a modulated Controlling the signal and controlling the spatial light modulation device to modulate the time-sequential light through the modulation control signal specifically includes:

converting at least one primary color image signal in the decoded source image signal corresponding to the first laser light and the first fluorescent light with overlapping spectra into a first primary color control signal and a second primary color control signal, and passing the The first primary color control signal and the second primary color control signal control the spatial light modulation device to respectively modulate the first laser light and the first fluorescent light with overlapping spectra;

The mixed brightness of the first laser light and the first fluorescent light with spectral overlap is the same as the brightness of the corresponding primary color image signal in the decoded source image signal, and the first laser light and the first fluorescent light with spectral overlap are the same. The color coordinates of a mixed fluorescent light are the same as the color coordinates of the corresponding primary color image signal in the decoded source image signal.

2. The control method of a projection display system according to claim 1, wherein at least one of the decoded source image signals corresponding to the first laser light and the first fluorescent light having overlapping spectra Converting a primary color image signal into a first primary color control signal and a second primary color control signal specifically includes:

converting at least one primary color image signal in the decoded source image signal into a first primary color control signal and a second primary color control signal, wherein the first primary color control signal and the second primary color control signal meet the following requirements:

\frac{a a}{K K} {L L}_{C C 11}^{' '} = = \frac{a a 11}{K K} {L L}_{C C 1111} + + \frac{a a 22}{K K} {L L}_{C C 1212}

x x = = \frac{\frac{{x x}_{11}}{{y the y}_{11}} \cdot &Center Dot; \frac{a a 11}{K K} \cdot &Center Dot; {L L}_{C C 1111} + + \frac{{x x}_{22}}{{y the y}_{22}} \cdot &Center Dot; \frac{a a 22}{K K} \cdot &Center Dot; {L L}_{C C 1212}}{\frac{11}{{y the y}_{11}} \cdot &Center Dot; \frac{a a 11}{K K} \cdot &Center Dot; {L L}_{C C 1111} + + \frac{11}{{y the y}_{22}} \cdot &Center Dot; \frac{a a 22}{K K} \cdot \cdot {L L}_{C C 1212}}

y the y = = \frac{\frac{a a 11}{K K} \cdot \cdot {L L}_{C C 1111} + + \frac{a a 22}{K K} \cdot \cdot {L L}_{C C 1212}}{\frac{11}{{y the y}_{11}} \cdot &Center Dot; \frac{a a 11}{K K} \cdot &Center Dot; {L L}_{C C 1111} + + \frac{11}{{y the y}_{22}} \cdot &Center Dot; \frac{a a 22}{K K} \cdot &Center Dot; {L L}_{C C 1212}}

Among them, L _C1 ' is the brightness when both the first laser and the first fluorescent light with spectral overlap are fully on, L _C11 is the brightness when the first laser with spectral overlap is fully on, and L _C12 is the brightness of the first laser with spectral overlap. The brightness of the first fluorescent light with overlapping spectra when fully on, C1, C11, and C12 are all primary color light marks;

The (x, y) is the color coordinates when both the first laser light and the first fluorescent light with spectral overlap are fully turned on, and (x1, y1) is the color coordinate when the first laser light with spectral overlap is fully turned on Color coordinates, (x2, y2) are the color coordinates when the first fluorescent light is fully on with spectral overlap;

a is the primary color image signal in the decoded source image signal corresponding to the first laser light and the first fluorescent light with spectral overlap, the a1 is the first primary color control signal, and the a2 is the first primary color image signal Two primary color control signals, and a, a1, and a2 are all integers greater than or equal to 0 and less than or equal to K, where K is the maximum gray value that the spatial light modulation device can achieve.

3. The control method of a projection display system according to claim 2, wherein the a1 and a2 are equal and both equal to a, or the a1 and a2 are not equal.

4. The control method of the projection display system according to claim 3, wherein the first laser is a red laser, the first fluorescent light is orange light emitted by an orange wavelength conversion material, and the at least A primary color image signal includes a red primary color image signal, the first primary color control signal is a first red primary color control signal, and the second primary color control signal is a second red primary color control signal, and/or,

The first laser is a cyan laser, the first fluorescence is green light emitted by a green wavelength conversion material, the at least one primary color image signal includes a green primary color image signal, and the first primary color control signal is the first A green primary color control signal, the second primary color control signal is a second green primary color control signal.

5. The control method of a projection display system according to claim 3, wherein the sequential light includes sequential blue light, green light, red laser light, and orange light, and converting the decoded source image signal to Specifically for the modulation control signal include:

converting the R primary color image signal in the decoded source image signal BGR into a first R primary color control signal R1 and a second R primary color control signal R2, so as to convert the source image signal BGR into a modulation control signal BGR1R2, by The modulation control signal BGR1R2 controls the spatial light modulation device to modulate the blue light, green light, red laser light, and orange light in sequence.

6. The control method of a projection display system according to any one of claims 1 to 5, characterized in that, the at least one fluorescent light in time sequence includes a second fluorescent light and a third fluorescent light that are time-sequential and have overlapping spectra, and the Converting the decoded source image signal into a modulation control signal also includes:

converting at least one primary color image signal in the decoded source image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap into a third primary color control signal and a fourth primary color control signal, and passing the first The three primary color control signals and the fourth primary color control signal control the spatial light modulation device to respectively modulate the second fluorescent light and the third fluorescent light with overlapping spectra;

The mixed brightness of the second fluorescent light and the third fluorescent light with spectral overlap is the same as the brightness of the primary color image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlapping in the decoded source image signal .

7. The control method of a projection display system according to claim 6, wherein at least one of the decoded source image signals corresponding to the second fluorescent light and the third fluorescent light with overlapping spectra The conversion of the primary color image signal into the third primary color control signal and the fourth primary color control signal specifically includes:

converting at least one primary color image signal in the decoded source image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap into a third primary color control signal and a fourth primary color control signal, wherein the third primary color The primary color control signal and the fourth primary color control signal meet the following requirements:

\frac{b b}{K K} {L L}_{C C 22}^{' '} = = \frac{b b 11}{K K} {L L}_{C C 21 twenty one} + + \frac{b b 22}{K K} {L L}_{C C 22 twenty two};;

Wherein L _C2 ' is the brightness when the second fluorescent light with spectral overlap and the third fluorescent light are fully on, L _C21 is the brightness when the second fluorescent light with spectral overlap is fully on, and L _C22 is the existing spectrum The brightness of the overlapped third fluorescent lights when they are fully on, C2, C21, and C22 are all primary color light marks;

b is the primary color image signal in the decoded source image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap, the b1 is the third primary color control signal, and the b2 is the The fourth primary color control signal, and b, b1, and b2 are all integers greater than or equal to 0 and less than or equal to K, where K is the maximum grayscale value that the spatial light modulation device can achieve.

8. The control method of a projection display system according to claim 7, characterized in that, said L _C21 and L _C22 are equal or unequal.

9. The control method of a projection display system according to claim 8, wherein the second fluorescent light and the third fluorescent light with overlapping spectra are both green light emitted by a green light wavelength conversion material after being excited, and the The at least one primary color image signal is a green primary color image signal.

10. The control method of the projection display system according to claim 7, characterized in that, the sequential light includes sequential first blue light, first green light, red laser light, second blue light, second green light, orange light , wherein the first blue light has spectral overlap with the second blue light, the first green light has spectral overlap with the second green light, the red laser light has spectral overlap with the orange light, and the The conversion of the decoded source image signal into a modulation control signal specifically includes:

Converting the B primary color image signal in the decoded source image signal BGR into a first B primary color control signal B1 and a second B primary color control signal B2, and converting a G primary color image signal into a first G primary color control signal G1 and a second G primary color control signal B2 Two G primary color control signals G2, convert the R primary color image signal into a first R primary color control signal R1 and a second R primary color control signal R2, so as to convert the source image signal BGR into B1G1R1B2G2R2, which is controlled by the primary color image signal B1G1R1B2G2R2 The spatial light modulation device sequentially modulates the first blue light, the first green light, the red laser light, the second blue light, the second green light, and the orange light.

11. A method for controlling a projection display system, the projection display system comprising a spatial light modulation device and a light-emitting device capable of emitting sequential light, the sequential light includes at least one laser and at least one fluorescent light in sequence, the sequence in time There is spectral overlap between at least one first laser in at least one laser and at least one first fluorescent in at least one fluorescent light in the time sequence, wherein the control method includes:

Obtaining each primary color image signal in the decoded source image signal;

converting the decoded source image signal into a modulation control signal, and controlling the spatial light modulation device to modulate the sequential light emitted by the light emitting device through the modulation control signal;

According to the preset target color coordinates of the primary color light corresponding to the first laser light and the first fluorescent light with overlapping spectra, all the first fluorescent light is used to correct the first laser light.

12. The control method of a projection display system according to claim 11, wherein the decoded source image signal is converted into a modulation control signal, and the spatial light modulation device is controlled by the modulation control signal to The modulation of the sequential light emitted by the light emitting device specifically includes:

Converting the decoded source image signal into a modulation control signal including the first primary color modulation signal and the second primary color modulation signal, and controlling the spatial light modulation device to control the spectral overlapping by the first primary color modulation signal and the second primary color modulation signal respectively The first laser light and the first fluorescent light are modulated.

13. A projection display system, comprising a spatial light modulation device, characterized in that it further comprises:

A light-emitting device capable of emitting time-sequential light, the time-sequential light includes at least one laser light of time sequence and at least one fluorescent light of time sequence, at least one first laser in the at least one laser light of time sequence and at least one of the at least one fluorescent light of time sequence - There is spectral overlap of the first fluorescent light;

A control device connected to the spatial light modulation device, the control device converts the decoded source image signal into a modulation control signal, and controls the spatial light modulation device to modulate the time-sequential light through the modulation control signal, the The control devices include:

A first control unit, configured to convert at least one primary color image signal in the decoded source image signal corresponding to the first laser light and the first fluorescent light with overlapping spectra into a first primary color control signal and a second primary color control signal, and control the spatial light modulation device to modulate the first laser light and the first fluorescent light with overlapping spectra respectively through the first primary color control signal and the second primary color control signal;

The mixed brightness of the first laser light and the first fluorescent light with spectral overlap is the same as the brightness of the corresponding primary color image signal in the decoded source image signal, and the first laser light and the first fluorescent light with spectral overlap are the same. The color coordinates of the mixed fluorescent light are the same as the color coordinates of the corresponding primary color image signal in the decoded source image signal.

14. The projection display system according to claim 13, wherein the first control unit comprises:

The first signal conversion module is configured to convert at least one primary color image signal in the decoded source image signal into a first primary color control signal and a second primary color control signal, wherein the first primary color control signal and the second primary color control signal The primary color control signal meets the following requirements:

\frac{a a}{K K} {L L}_{C C 11}^{' '} = = \frac{a a 11}{K K} {L L}_{C C 1111} + + \frac{a a 22}{K K} {L L}_{C C 1212}

x x = = \frac{\frac{{x x}_{11}}{{y the y}_{11}} \cdot &Center Dot; \frac{a a 11}{K K} \cdot &Center Dot; {L L}_{C C 1111} + + \frac{{x x}_{22}}{{y the y}_{22}} \cdot &Center Dot; \frac{a a 22}{K K} \cdot &Center Dot; {L L}_{C C 1212}}{\frac{11}{{y the y}_{11}} \cdot &Center Dot; \frac{a a 11}{K K} \cdot \cdot {L L}_{C C 1111} + + \frac{11}{{y the y}_{22}} \cdot \cdot \frac{a a 22}{K K} \cdot \cdot {L L}_{C C 1212}}

y the y = = \frac{\frac{a a 11}{K K} \cdot &Center Dot; {L L}_{C C 1111} + + \frac{a a 22}{K K} \cdot \cdot {L L}_{C C 1212}}{\frac{11}{{y the y}_{11}} \cdot \cdot \frac{a a 11}{K K} \cdot \cdot {L L}_{C C 1111} + + \frac{11}{{y the y}_{22}} \cdot \cdot \frac{a a 22}{K K} \cdot \cdot {L L}_{C C 1212}}

15. The projection display system according to claim 14, wherein the first laser light is red laser light, the first fluorescent light is orange light emitted from an orange light wavelength conversion material, and the at least one primary color The image signal includes a red primary color image signal, the first primary color control signal is a first red primary color control signal, and the second primary color control signal is a second red primary color control signal, and/or,

16. The projection display system according to any one of claims 13 to 15, wherein the at least one fluorescent light in time sequence includes a second fluorescent light and a third fluorescent light that are time-sequential and overlap in spectrum, and the control device further include:

The second control unit is configured to convert at least one primary color image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap in the decoded source image signal into a third primary color control signal and a fourth primary color control signal signal, and control the spatial light modulation device to modulate the second fluorescent light and the third fluorescent light with overlapping spectra through the third primary color control signal and the fourth primary color control signal;

Wherein, the mixed brightness of the second fluorescent light and the third fluorescent light with spectral overlapping is the same as the brightness of the primary color image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlapping in the decoded source image signal same.

17. The projection display system according to claim 16, wherein the second control unit comprises:

The second signal conversion unit is configured to convert at least one primary color image signal corresponding to the second fluorescent light and the third fluorescent light with spectral overlap in the decoded source image signal into a third primary color control signal and a fourth primary color Control signals, wherein the third primary color control signal and the fourth primary color control signal meet the following requirements:

\frac{b b}{K K} {L L}_{C C 22}^{' '} = = \frac{b b 11}{K K} {L L}_{C C 21 twenty one} + + \frac{b b 22}{K K} {L L}_{C C 22 twenty two};;

18. The projection display system according to claim 17, wherein the second fluorescent light and the third fluorescent light with overlapping spectra are all green light emitted by a green light wavelength conversion material after being excited, and the at least one The primary color image signal is a green primary color image signal.

19. A projection display system, comprising a spatial light modulation device, characterized in that it further comprises:

A light-emitting device capable of emitting time-sequence light, the time-sequence light includes at least one laser light of time sequence and at least one fluorescent light of time sequence, at least one first laser in the at least one laser light of time sequence and at least one of the at least one fluorescent light of time sequence - There is spectral overlap of the first fluorescent light;

A control device connected to the spatial light modulation device, the control device converts the decoded source image signal into a modulation control signal, and controls the sequential light emitted by the spatial light modulation device to the light emitting device through the modulation control signal performing modulation, and using all of the first fluorescent light to correct the first laser light according to the preset target color coordinates of the primary color light corresponding to the first laser light and the first fluorescent light with overlapping spectra .

20. The projection display system according to claim 19, wherein the control device is specifically configured to convert the decoded source image signal into a modulation control signal comprising a first primary color modulation signal and a second primary color modulation signal, The spatial light modulation device is controlled by the first primary color modulation signal and the second primary color modulation signal to respectively modulate the first laser light and the first fluorescent light with overlapping spectra.