CN118169919A - Multi-primary color field color sequential display device based on quantum dots - Google Patents

Abstract

The application provides a multi-dominant color field color sequence display device based on quantum dots, which comprises a liquid crystal module and a backlight module; the backlight module is arranged right behind the liquid crystal module and comprises a plurality of light emitting units and dimming structures corresponding to the light emitting units, and the dimming structures comprise collimation structures corresponding to all light emitting devices in the light emitting units; the collimation structure is arranged for each light emitting device in the light emitting units, so that each light emitting unit in the backlight module can be fully collimated, and uniformity of light emission is improved. The half-peak width of the spectrum of each light-emitting device in the backlight module is in the first preset range, so that the color purity of display can be improved as much as possible while the metamerism is ensured to be effective, and the display color gamut is improved. And the number of main colors of each light emitting unit in the backlight module is not less than 4. And by combining the corresponding dimming structure, the display color gamut can be further improved while the uniformity of light emission is not influenced. Better display effect is realized.

Description

Multi-primary color field color sequential display device based on quantum dots

Technical Field

The present application relates to the field of display technology, and in particular to a multi-primary color field color sequential display device based on quantum dots.

Background technique

Traditional LCDs are composed of backlight panels, liquid crystals, and color filters. However, due to the presence of color filters, about 2/3 of the light in LCDs is filtered out. In order to improve the light efficiency of LCDs, the color filters of LCDs can be removed, and the traditional white backlight LED array can be replaced with an LED array of RGB three-color light that can flash quickly. Based on the principle of time mixing, when the RGB three-color light of the backlight array flashes fast enough, a color image can be synthesized on the retina through the visual persistence effect of the human eye. This type of display is called a field color sequential LCD.

With the development of display technology, the manufacturers of field color sequential displays are also unremittingly pursuing the display effect of a wider color gamut to improve people's viewing experience. At present, in order to improve the breadth of the color gamut, the color purity of the light-emitting device can be increased or more primary color light-emitting units can be used. However, when the color purity is adjusted too high to achieve the expected color gamut, it is easy to cause the display's metamerism phenomenon to fail. And the light-emitting units composed of more primary colors will make the uniformity of the light output poor. Therefore, when the existing field color sequential display increases the color gamut breadth to the expected level, it is difficult to guarantee the display effect of the display.

Summary of the invention

The purpose of the present application is to solve at least one of the above-mentioned technical defects, especially the technical defect that the existing field color sequential display in the prior art is difficult to ensure the display effect of the display when the color gamut width is increased to the expected level.

The present application provides a multi-primary color field color sequential display device based on quantum dots, the device comprising a liquid crystal module and a backlight module;

The backlight module is placed directly behind the liquid crystal module, and the backlight module includes a plurality of light-emitting units and a dimming structure corresponding to each light-emitting unit, and the dimming structure includes a collimating structure corresponding to each light-emitting device in the light-emitting unit;

The backlight module is used to provide a light source for the liquid crystal module; wherein the half-peak width of the spectrum of each light-emitting device in the backlight module is within a first preset range, and the number of primary colors of each light-emitting unit in the backlight module is not less than 4;

The liquid crystal module is used to determine a field color sequence algorithm in a preset algorithm library, and to regulate the display content of the liquid crystal module according to the field color sequence algorithm.

In one of the embodiments, the dimming structure further comprises a free-form surface dimming device; and the collimating structures in the dimming structure corresponding to the respective light-emitting devices of the light-emitting unit are disposed inside the free-form surface dimming device.

In one embodiment, the first preset range is greater than 20 nanometers and less than 80 nanometers.

In one of the embodiments, the refresh rate of the liquid crystal module is not less than N times the number of primary colors of the light-emitting units of the backlight module, wherein the number of primary colors of each light-emitting unit in the backlight module is equal, and N is equal to 60.

In one of the embodiments, each light-emitting unit in the backlight module uses QLED as the light-emitting material and adopts an electroluminescent light-emitting method.

In one embodiment, each light-emitting unit in the backlight module uses LED particles and a photoluminescent quantum dot layer as light-emitting materials and adopts a photoluminescent light-emitting method.

In one embodiment, the LED particles are used to provide a light source; the photoluminescent quantum dot layer is used to convert the light emitted by the LED particles into light with a corresponding saturation within a second preset range; wherein the second preset range is a range of saturation corresponding to the half-peak width of the spectrum within the first preset range.

In one embodiment, the process of the liquid crystal module for regulating the display content of the liquid crystal module according to the field color sequence algorithm includes:

The liquid crystal module obtains preset display parameters, determines a display adjustment strategy based on the field color sequence algorithm and the display parameters, and generates a liquid crystal signal according to the display adjustment strategy to adjust the display content of the liquid crystal module; wherein the liquid crystal signal includes a driving voltage corresponding to each pixel in the display screen of the liquid crystal module.

In one of the embodiments, the algorithm library includes a 240Hz-Stencil algorithm, a 240Hz-LPD algorithm, a 240Hz-Edge-Stencil algorithm and a 240Hz-RGB algorithm.

It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

The present application provides a multi-primary color field sequential display device based on quantum dots, the device includes a liquid crystal module and a backlight module; the backlight module is placed directly behind the liquid crystal module, the backlight module includes a plurality of light-emitting units and a dimming structure corresponding to each light-emitting unit, the dimming structure includes a collimation structure corresponding to each light-emitting device in the light-emitting unit; the collimation structure is set for each light-emitting device in the light-emitting unit, so that each light-emitting unit in the backlight module can be fully collimated, thereby improving the uniformity of light output. The backlight module is used to provide a light source for the liquid crystal module, and the half-peak width of the spectrum of each light-emitting device in the backlight module is within a first preset range, and the number of primary colors of each light-emitting unit in the backlight module is not less than 4. In this way, by limiting the half-peak width of the spectrum of each light-emitting device in the backlight module, the color purity is improved without affecting the metamerism of the field color sequential display, thereby improving the display color gamut. Moreover, using a light-emitting unit with a primary color number of 4 or more and configuring a corresponding specific dimming structure, the display color gamut can be further improved without affecting the uniformity of light output. To achieve a better display effect.

Furthermore, the liquid crystal module included in the present application can be used to adjust the display content of the liquid crystal module according to the field color sequential algorithm to reduce the color separation phenomenon during the display process, thereby further improving the display effect of the field color sequential display.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

FIG1 is a schematic structural diagram of a multi-primary color field color sequential display device based on quantum dots provided in an embodiment of the present application;

FIG2 is a top view of a schematic structural diagram of a dimming structure in an example provided by an embodiment of the present application;

FIG3 is a front view of a schematic structural diagram of a dimming structure in an example provided by an embodiment of the present application;

FIG4 is one of schematic diagrams of a frame of an image of a field color sequential display in an example provided by an embodiment of the present application;

FIG. 5 is a second schematic diagram of a frame of an image of a field color sequential display in an example provided by an embodiment of the present application.

Detailed ways

The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

In the following embodiments, the present application provides a multi-primary color field sequential display device based on quantum dots. For ease of description, the following embodiments will refer to the multi-primary color field sequential display device based on quantum dots as a field color sequential display.

As shown in FIG1 , the present application provides a multi-primary color field color sequential display device based on quantum dots, the device comprising a liquid crystal module and a backlight module;

The backlight module is placed directly behind the liquid crystal module, and the backlight module includes a plurality of light-emitting units and a dimming structure corresponding to each light-emitting unit, and the dimming structure includes a collimating structure corresponding to each light-emitting device in the light-emitting unit;

The backlight module is used to provide a light source for the liquid crystal module; wherein the half-peak width of the spectrum of each light-emitting device in the backlight module is within a first preset range, and the number of primary colors of each light-emitting unit in the backlight module is not less than 4;

The liquid crystal module is used to determine the field color sequence algorithm in a preset algorithm library, and to adjust the display content of the liquid crystal module according to the field color sequence algorithm.

The number of primary colors of the light-emitting unit can be understood as the number of light-emitting devices contained in the light-emitting unit. The constituent materials of the light-emitting unit include a quantum dot layer. Moreover, the number of primary colors of each light-emitting unit in the backlight module is the same. The arrangement of the light-emitting devices in each light-emitting unit is consistent.

In this embodiment, each light-emitting unit corresponds to a dimming structure, and the dimming structure includes a collimating structure corresponding to each light-emitting device in the corresponding light-emitting unit. It is understandable that before setting the dimming structure, it is necessary to first determine the number and color of the main colors of the light-emitting unit, and then design a collimating structure for each light-emitting device in the light-emitting unit to obtain the dimming structure, and use this as a standard to set multiple dimming structures, and use each dimming structure in each light-emitting unit in the backlight module. In one embodiment, the collimating structure can be a free-form surface lens, which is used to change the angular distribution of the light-emitting device so that the light-emitting device can be fully collimated under the action of the dimming structure.

Generally speaking, since the main color of each light-emitting device in a light-emitting unit is different, a corresponding collimation structure can be designed according to factors such as the arrangement position and main color of each light-emitting device in the light-emitting unit to change the angular distribution of the light-emitting device so that each light-emitting device can be fully collimated under the action of the dimming structure. At this time, the deviation and diffusion in the propagation process can be reduced, thereby improving the uniformity of the light output.

At the same time, the backlight module controls the half-width of the spectrum of each light-emitting device therein to be within the first preset range. By setting the half-width of the spectrum of each light-emitting device within a certain range, when the half-width of the spectrum of each light-emitting device is within the first preset range, at this time, the color purity of the field color sequential display is higher than the color purity of the existing display using LED as the backlight light source, and at the same time, it will not affect the metamerism of the field color sequential display. Among them, the metamerism phenomenon refers to the phenomenon that different stimuli in the spectrum can produce the same visual response. When the metamerism phenomenon of the field color sequential display fails, it will affect the color accuracy and color uniformity of the field color sequential display.

When the backlight module provides the backlight source, the liquid crystal module needs to determine the field color sequence algorithm in the algorithm library, and based on the determined field color sequence algorithm, adjust the display content of the liquid crystal module to achieve the purpose of displaying the specified content and the expected display effect. Among them, the algorithm library includes a variety of field color sequence algorithms. The field color sequence algorithm is used to improve the details in the signal processing and color rendering process, thereby reducing color offset and separation.

Specifically, the field color sequence algorithm in the algorithm library may be determined by random selection or according to a preset selection rule, and the present application does not impose any specific restrictions on this.

It is understandable that the half-peak width of the spectrum of the light-emitting device is limited, and the number of primary colors of each light-emitting unit in the backlight module is not less than 4. In this way, the color purity can be improved as much as possible while ensuring that the isochromatic phenomenon of the field color sequential display takes effect, thereby improving the color gamut breadth of the field color sequential display. In this process, due to the excessive number of primary colors of the light-emitting unit, the uniformity of the light emitted by the light-emitting unit will be affected. Therefore, an additional collimation structure can be set for each light-emitting device in the light-emitting unit so that each light-emitting device can be fully collimated under the action of the dimming structure. Thereby improving the uniformity of the light emitted by the light-emitting unit, and finally achieving an improvement in the display color gamut without affecting the uniformity of the light emission, and achieving a better display effect.

The present application provides a multi-primary color field sequential display device based on quantum dots, the device includes a liquid crystal module and a backlight module; the backlight module is placed directly behind the liquid crystal module, the backlight module includes a plurality of light-emitting units and a dimming structure corresponding to each light-emitting unit, the dimming structure includes a collimation structure corresponding to each light-emitting device in the light-emitting unit; the collimation structure is set for each light-emitting device in the light-emitting unit, so that each light-emitting unit in the backlight module can be fully collimated, thereby improving the uniformity of light output. The backlight module is used to provide a light source for the liquid crystal module, and the half-peak width of the spectrum of each light-emitting device in the backlight module is within a first preset range, and the number of primary colors of each light-emitting unit in the backlight module is not less than 4. In this way, by limiting the half-peak width of the spectrum of each light-emitting device in the backlight module, the color purity is improved without affecting the metamerism of the field color sequential display, thereby improving the display color gamut. Moreover, using a light-emitting unit with a primary color number of 4 or more and configuring a corresponding specific dimming structure, the display color gamut can be further improved without affecting the uniformity of light output. To achieve a better display effect.

Furthermore, the liquid crystal module included in the present application can be used to adjust the display content of the liquid crystal module according to the field color sequential algorithm to reduce the color separation phenomenon during the display process, thereby further improving the display effect of the field color sequential display.

In one of the embodiments, the dimming structure further includes a free-form surface dimming device; and the collimating structures corresponding to the light-emitting devices of the light-emitting unit in the dimming structure are placed inside the free-form surface dimming device.

Among them, the free-form surface dimming device is a device for controlling the intensity and distribution of light, which can be used in conjunction with a collimating structure to adjust the angular distribution of the light-emitting device, thereby achieving that each light-emitting device can be fully collimated under the action of the dimming structure.

In this embodiment, a free-form surface reflector cup can be used as a free-form surface dimming device. The dimming structure includes a free-form surface dimming device and a collimating structure corresponding to each light-emitting device of the light-emitting unit, and the collimating structure corresponding to each light-emitting device of the light-emitting unit is placed in the free-form surface dimming device. Through the cooperation between the free-form surface dimming device and the collimating structure corresponding to each light-emitting device of the light-emitting unit, each light-emitting device in the light-emitting unit can be fully collimated.

It is understandable that in the process of improving the color gamut, due to the large number of primary colors of the light-emitting unit, the light-emitting unit may have poor light uniformity. Therefore, an additional collimation structure can be set for each light-emitting device in the light-emitting unit so that each light-emitting device can be fully collimated under the action of the dimming structure. This improves the uniformity of the light emitted by the light-emitting unit, and ultimately achieves an improvement in the display color gamut without affecting the uniformity of the light, achieving a better display effect.

In an example, it is assumed that the light-emitting unit is composed of a red electroluminescent QLED, a blue electroluminescent QLED, a green electroluminescent QLED and a yellow electroluminescent QLED, as shown in Figures 2 and 3, Figure 2 is a top view of the structural schematic diagram of the dimming structure in an example provided by an embodiment of the present application, and Figure 3 is a front view of the structural schematic diagram of the dimming structure in an example provided by an embodiment of the present application.

In Figure 2, the outer circle is a reflective cup. In this example, the reflective cup can be used as a free-form dimming device. R represents red QLED (Quantum Dot Light Emitting Diodes), G represents green QLED, B represents blue QLED, Y represents yellow QLED, and t represents a frame time. In this example, multiple QLEDs can be called QLEDs, and the collimation structure corresponding to the light-emitting device is the additional collimation structure in the figure.

In FIG. 3 , the substrate can be understood as a part of the backlight module, and the rest of the description can refer to the above description of FIG. 2 .

It should be noted that FIG. 2 and FIG. 3 are only schematic diagrams of a dimming structure related to the present solution. The specific arrangement of the light-emitting device, the arrangement of the light-emitting unit, the material of the light-emitting device, etc. can be determined according to the actual situation. For example, the light-emitting device array can be arranged in the manner of FIG. 2, or it can be arranged in strips. The additional collimation structure can be a refractive optical device, a reflective optical device, or a combination of a reflective optical device and a refractive optical device. This application does not impose specific restrictions on this.

In one embodiment, the first preset range is greater than 20 nanometers and less than 80 nanometers.

In this embodiment, the first preset range can be set to be greater than 20 nanometers and less than 80 nanometers. Within this range, the color purity of the field color sequential display is higher than that of the existing display using LED as the backlight source, and the metamerism phenomenon of the field color sequential display will not be invalidated due to the narrow spectrum, thereby improving the display effect of the field color sequential display.

In one embodiment, the refresh rate of the liquid crystal module is not less than N times the number of primary colors of the light-emitting units of the backlight module, wherein the number of primary colors of each light-emitting unit in the backlight module is equal, and N is equal to 60.

In this embodiment, since the number of primary colors of each light-emitting unit in the backlight module is not less than 4, the increase in primary colors also has certain requirements on the refresh rate of the field color sequential display. If the refresh rate of the liquid crystal module is too low, problems such as untimely color updates are likely to occur. Therefore, the refresh rate of the liquid crystal module needs to be limited to avoid affecting the display effect of the field color sequential display due to the low refresh rate.

In one embodiment, each light-emitting unit in the backlight module uses QLED as the light-emitting material and adopts an electroluminescent light-emitting method.

Among them, QLED refers to quantum light emitting diode. Quantum light emitting diode includes quantum dot layer. Quantum dot is a nano-scale semiconductor material.

In this embodiment, the principle of electroluminescence is based on the process that when a material is excited by a voltage, an electron transition occurs, releasing energy and generating photons.

In one example, as shown in FIG. 4 , FIG. 4 is one of the schematic diagrams of a frame image of a field color sequential display in one example provided by an embodiment of the present application.

In Figure 4, the frame image is composed of four fields: red (R), blue (B), yellow (Y), and green (G). Based on the principle of temporal color mixing, the four color fields of red, blue, yellow, and green flash quickly within one frame time, and through the visual persistence effect of the human eye, a color image is formed on the retina.

In this example, if the half-peak widths of the spectra of red, blue, yellow, and green are all set to 50 nanometers, then a possible color coordinate is R (0.68, 0.32), G (0.15, 0.69), B (0.13, 0.06), Y (0.51, 0.49). The color gamut size is NTSC 115%.

It is understandable that in another example, other colors may be used to replace one or more of red, blue, yellow and green to obtain a new embodiment, such as magenta, cyan, etc. Moreover, the number of primary colors is not limited to 4, and new embodiments may be obtained by adding primary colors.

In one embodiment, each light-emitting unit in the backlight module uses LED particles and a photoluminescent quantum dot layer as light-emitting materials and adopts a photoluminescent light-emitting method.

Among them, LED particles refer to light-emitting devices composed of light-emitting diodes. The photoluminescent quantum dot layer is a special material layer that contains nanoscale semiconductor particles called quantum dots. Quantum dots are semiconductor particles with quantum size effects, and their sizes are usually in the nanoscale range. When these quantum dots are excited by light, photoluminescence occurs, that is, photons are released and a luminous effect is produced.

In this embodiment, photoluminescence refers to a process in which a substance releases photons and generates luminescence after being excited by light.

In one example, as shown in FIG. 5 , FIG. 5 is a second schematic diagram of a frame of an image of a field color sequential display in one example provided by an embodiment of the present application.

In Figure 5, the frame image consists of six fields of red (R), green (G), blue (B), cyan (C), magenta (M), and yellow (Y). The corresponding quantum dots in the photoluminescent quantum dot layer can convert the light emitted by the LED particles into high-saturation light corresponding to the quantum dots.

It is understandable that the LED array composed of LED particles can be a single-color LED array or a multi-primary-color LED array. The photoluminescent quantum dot layer includes 4 or more colors. For example, red, green, blue, cyan, magenta, yellow; a combination of red, green, blue, cyan, yellow, etc. This application does not impose specific restrictions on this.

In one embodiment, LED particles are used to provide a light source; and the photoluminescent quantum dot layer is used to convert the light emitted by the LED particles into light with a corresponding saturation within a second preset range.

The second preset range is a range of saturation corresponding to the half-peak width of the spectrum within the first preset range.

In this embodiment, when the light-emitting unit of the backlight module uses LED particles and a photoluminescent quantum dot layer as light-emitting materials and adopts a photoluminescent light-emitting mode, the LED particles are used to provide a light source, and the quantum dots in the photoluminescent quantum dot layer can convert the light emitted by the LED particles into light corresponding to the quantum dots, and the converted light has a high saturation. In this way, the display effect of the field color sequential display can be optimized through the combination of LED particles and the photoluminescent quantum dot layer.

In one embodiment, the process of adjusting the display content of the liquid crystal module according to the field color sequence algorithm includes:

The liquid crystal module obtains preset display parameters, determines a display adjustment strategy based on a field color sequence algorithm and display parameters, and generates a liquid crystal signal according to the display adjustment strategy to adjust the display content of the liquid crystal module; wherein the liquid crystal signal includes a driving voltage corresponding to each pixel in the display screen of the liquid crystal module.

The display parameters include various parameters or settings related to the display effect, including but not limited to brightness, contrast, color temperature, color saturation, etc.

In this embodiment, a field color sequence algorithm and display parameters are used to generate a display adjustment strategy that meets the display parameters, and the field color sequence algorithm can reduce the color separation phenomenon and improve the display quality and stability by increasing the refresh rate of the display or optimizing the pixel arrangement structure. It can be understood that the color separation phenomenon refers to the phenomenon of color fault or color separation on the display in a high-speed moving scene.

In one of the embodiments, the algorithm library includes a 240Hz-Stencil algorithm, a 240Hz-LPD algorithm, a 240Hz-Edge-Stencil algorithm, and a 240Hz-RGB algorithm.

It is understandable that the algorithm library mainly includes the field color sequence algorithm at a refresh rate of 240 Hz. In one example, the algorithm library may also include the same type of algorithms at other refresh rates. For example, a 180 Hz-stencil algorithm, a 180 Hz-lpd algorithm, a 180 Hz-edge-stencil algorithm, a 120 Hz-stencil algorithm, a 120 Hz-lpd algorithm, and the like.

Finally, it should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements that are not clearly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. Herein, the singular form of "one", "one" and "said/the" may also include plural forms, unless the context clearly indicates another way. It should also be understood that the term "include/comprise" or "have" etc. specifies the existence of stated features, wholes, steps, operations, components, parts or combinations thereof, but does not exclude the possibility of existing or adding one or more other features, wholes, steps, operations, components, parts or combinations thereof.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The various embodiments can be combined as needed, and the same or similar parts can refer to each other.

The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. The multi-dominant color field color sequence display device based on the quantum dots is characterized by comprising a liquid crystal module and a backlight module;

The backlight module is arranged right behind the liquid crystal module and comprises a plurality of light emitting units and dimming structures corresponding to the light emitting units, and the dimming structures comprise collimation structures corresponding to all light emitting devices in the light emitting units;

The backlight module is used for providing a light source for the liquid crystal module; the half-peak width of the spectrum of each light-emitting device in the backlight module is within a first preset range, and the number of main colors of each light-emitting unit in the backlight module is not less than 4;

The liquid crystal module is used for determining a field color sequence algorithm in a preset algorithm library and regulating and controlling the display content of the liquid crystal module according to the field color sequence algorithm.

2. The quantum dot based multi-primary color field color sequential display device of claim 1, wherein the dimming structure further comprises a freeform dimming device; and the collimation structure corresponding to each light emitting device of the light emitting unit in the dimming structure is arranged in the free-form surface dimming device.

3. The quantum dot based multi-primary color field color sequential display device of claim 1, wherein the first predetermined range is greater than 20 nanometers and less than 80 nanometers.

4. The quantum dot-based multi-dominant color field color sequential display device of claim 1, wherein the refresh rate of the liquid crystal module is not less than N times the number of dominant colors of the light emitting units of the backlight module, wherein the number of dominant colors of each light emitting unit in the backlight module is equal to N equal to 60.

5. The quantum dot-based multi-dominant color field color sequential display device of claim 1, wherein each light emitting unit in the backlight module uses QLED as a light emitting material and adopts an electroluminescent light emitting mode.

6. The quantum dot-based multi-primary color field color sequence display device of claim 1, wherein each light emitting unit in the backlight module uses LED particles and a photoluminescent quantum dot layer as light emitting materials, and adopts a photoluminescent light emitting mode.

7. The quantum dot based multi-primary color field color sequential display device of claim 6, wherein the LED particles are configured to provide a light source; the photoluminescence quantum dot layer is used for converting light emitted by the LED particles into light with corresponding saturation within a second preset range; wherein the second preset range is a range of saturation corresponding to a half-peak width of a spectrum within the first preset range.

8. The quantum dot-based multi-primary color field color sequential display device of any one of claims 1-7, wherein the liquid crystal module is configured to regulate the display content of the liquid crystal module according to the field color sequential algorithm, comprising:

the liquid crystal module acquires preset display parameters, determines a display adjustment strategy based on the field color sequence algorithm and the display parameters, and generates a liquid crystal signal according to the display adjustment strategy so as to adjust the display content of the liquid crystal module; the liquid crystal signal comprises a driving voltage corresponding to each pixel in a display screen in the liquid crystal module.

9. The quantum dot-based multi-primary color field color sequential display device of claim 1, wherein the algorithm library comprises a 240Hz-Stencil algorithm, a 240Hz-LPD algorithm, a 240Hz-Edge-Stencil algorithm, and a 240Hz-RGB algorithm.