CN109817149A - The control method of display panel, display device and display device - Google Patents
The control method of display panel, display device and display device Download PDFInfo
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- 150000002148 esters Chemical class 0.000 claims description 3
- 229920001195 polyisoprene Polymers 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 5
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- 238000003475 lamination Methods 0.000 description 2
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Abstract
This application provides the control methods of a kind of display panel, display device and display device, are related to field of display technology.The display panel includes: pixel unit, including multiple pixel subelements；Shape memory unit, including at least one shape memory subelement, and a shape memory subelement is oppositely arranged with a pixel subelement；And deformation driving unit, including at least one deformation drives subelement, deformation driving subelement is configured to driving shape memory subelement along the display light emission direction deformation of pixel subelement being arranged corresponding thereto.Embodiments herein passes through setting shape memory subelement and pixel subelement, using driving shape memory subelement, deformation occurs changes the microcavity length of pixel subelement, so that as visual angle increases, the light intensity decays of different colours can reach unanimity, the offset for improving chromaticity coordinates, is effectively relieved the color distortion of display panel.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display panel, a display device, and a control method of the display device.
Background
With the development of Organic Light Emitting Display (OLED) technology, the visual experience of people is continuously improved. Currently, the most applied technology in the organic light emitting display technology is RGB-SBS (RGB Side-By-Side) pixel juxtaposition. However, the display device to which this technique is applied has a problem of color distortion.
Therefore, how to alleviate the color distortion of the RGB-SBS display device becomes an urgent problem to be solved.
Disclosure of Invention
In view of the above, embodiments of the present disclosure are directed to a display panel, a display device and a control method of the display device, so as to solve the problem of color distortion of an RGB-SBS display device in the prior art.
One aspect of the present application provides a display panel, including: a pixel unit including a plurality of pixel sub-units; the shape memory unit comprises at least one shape memory subunit, and one shape memory subunit is arranged opposite to one pixel subunit; and the deformation driving unit comprises at least one deformation driving subunit, and the deformation driving subunit is configured to drive the shape memory subunit to deform along the display light-emitting direction of the pixel subunit opposite to the shape memory subunit.
In one embodiment of the present application, the pixel unit comprises at least three colors of the pixel sub-units, the at least one shape memory sub-unit corresponds to at least one color of the pixel sub-units; preferably, the number of the shape memory sub-units in the shape memory unit is the same as the number of the pixel sub-units in the pixel unit.
In one embodiment of the present application, the thickness of the shape memory sub-unit corresponding to the pixel sub-unit of different colors is the same or different.
In one embodiment of the present application, the shape memory subunit is disposed on a non-display light emitting side of the pixel subunit; alternatively, the pixel subunit includes a cathode and an anode, and the shape memory subunit is disposed between the anode and the cathode.
In one embodiment of the present application, the deformation driving subunit includes a deformation driving circuit, and the shape memory subunit is electrically connected to the deformation driving circuit; the deformation driving circuit is arranged on the non-display light-emitting side of the pixel subunit; or the deformation driving circuit is arranged in a non-display area of the display panel.
In one embodiment of the present application, the shape memory cell is made of a material including at least one of polyamino acid ester, polystyrene, and polyisoprene.
In an embodiment of the present application, the display panel further includes an elastic buffer structure, and the elastic buffer structure is located between the cathode and the anode of the pixel sub-unit, or located on the non-display light emitting side of the pixel sub-unit, or located on the display light emitting side of the pixel sub-unit.
In another aspect, the present application provides a display device including the display panel of any one of the first aspect.
In an embodiment of the application, the display device further includes a camera component and an image processing module, wherein the image processing module is configured to receive an image collected by the camera component, analyze the image, obtain visual angle information of human eyes in the image, and send a driving signal to the deformation driving circuit in the display panel according to the visual angle information.
A further aspect of the present application provides a control method of the display device according to the second aspect, including: receiving an image collected by a camera shooting assembly; analyzing the image to acquire visual angle information of human eyes in the image; and sending a driving signal to the deformation driving circuit in the display panel according to the visual angle information.
The embodiment of the application sets up shape memory subunit and pixel subunit to make display panel can change the microcavity length of pixel subunit through driving shape memory subunit emergence deformation, and then make along with the visual angle increase, the intensity decay of the light of different colours can tend to unanimously, improves the skew of chromatic coordinate, effectively alleviates display panel's color distortion.
Drawings
Fig. 1 is a schematic configuration diagram of a display device according to an embodiment of the present application.
FIG. 2 is a graph showing the relationship between the wavelength and intensity of the original microcavity spectrum and the adjusted microcavity spectrum at a viewing angle of 0.
FIG. 3 is a diagram illustrating the relationship between the brightness and the viewing angle of the display device after the microcavity is adjusted.
Fig. 4A is a schematic structural view of a display device according to another embodiment of the present application.
Fig. 4B is a schematic structural diagram of a display panel according to still another embodiment of the present application.
Fig. 4C is a schematic structural diagram of a display panel according to still another embodiment of the present application.
FIG. 5 is a schematic flow chart diagram of a display control method according to one embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
As described in the background, the RGB-SBS display device has a problem of high probability of color distortion. After the inventor conducts research and analysis, the intensity attenuation of the three colors of RGB is inconsistent with the increase of the viewing angle, so that the color coordinate is shifted, and the color of the RGB-SBS display device is distorted.
In order to solve the above problems, the inventors have realized that the color distortion of the RGB-SBS display device can be effectively alleviated if the shift of the color coordinates can be improved.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application. Fig. 2 is a graph showing the relationship between the wavelength and intensity of the original microcavity spectrum 5 and the adjusted microcavity spectrum 6 at a viewing angle of 0 °. FIG. 3 is a diagram illustrating the relationship between the brightness and the viewing angle of the display panel after the microcavity is adjusted.
In view of this, embodiments of the present application provide a display panel. As shown in fig. 1, the display panel may include a pixel unit 1, a shape memory unit 2, and a deformation driving unit. The pixel unit 1 may include a plurality of pixel sub-units. The shape memory unit 2 may include at least one shape memory sub-unit, and one shape memory sub-unit may be disposed opposite to one pixel sub-unit. The deformation driving unit may include at least one deformation driving subunit, and each deformation driving subunit is configured to drive the corresponding shape memory subunit to deform along the display light emitting direction of the pixel subunit disposed opposite thereto.
In one embodiment of the present application, one shape memory cell 2 may include a number of shape memory sub-cells that is less than or equal to the number of pixel sub-cells in one pixel cell 1. Specifically, one pixel unit 1 may include pixel sub-units of at least three colors, and the shape memory unit 2 may include at least one shape memory sub-unit corresponding to a pixel sub-unit of at least one color.
For example, as shown in fig. 1, one pixel unit 1 may include three pixel sub-units, which may be referred to as a first pixel sub-unit 11, a second pixel sub-unit 12, and a third pixel sub-unit 13, respectively, for convenience of description. One shape memory cell 2 may include at least one shape memory subunit, and the at least one shape memory subunit may be classified into at least one class. For example, when one shape memory unit 2 includes three shape memory sub-units, the three shape memory sub-units may be divided into three categories, which may be referred to as a first shape memory sub-unit 21, a second shape memory sub-unit 22, and a third shape memory sub-unit 23, respectively, for convenience of description. Here, the first shape memory sub-unit 21 is disposed opposite to the first pixel sub-unit 11, the second shape memory sub-unit 22 is disposed opposite to the second pixel sub-unit 12, and the third shape memory sub-unit 23 is disposed opposite to the third pixel sub-unit 13.
When the pixel sub-units in the pixel unit 1 are divided by color, for example, for an RGB-SBS display device, three pixel sub-units included in one pixel unit 1 may be an R pixel sub-unit, a G pixel sub-unit, and a B pixel sub-unit, respectively. Here, the first shape memory sub-unit 21 is disposed opposite to the R pixel sub-unit, the second shape memory sub-unit 22 is disposed opposite to the G pixel sub-unit, and the third shape memory sub-unit 23 is disposed opposite to the B pixel sub-unit.
The number of shape memory sub-units in one shape memory unit 2 may preferably be the same as the number of pixel sub-units in one pixel unit 1.
Correspondingly, one deformation driving unit may also include three deformation driving subunits, and one deformation driving subunit corresponds to one shape memory subunit.
The shape-change driving subunit can stimulate the shape memory subunit, so that the shape memory subunit can be deformed under the stimulation. Under the continued action of the stimulus, the deformation of the shape memory subunit can be maintained. When the stimulation is removed, the shape memory subunit can then be restored, i.e. from the deformed state to the original state. Here, the direction in which the shape memory sub-unit is deformed may be along the exit direction 4 of the display light of the pixel sub-unit corresponding thereto.
The deformation driving subunit can drive the shape memory subunit to deform, so that the length of the microcavity of the pixel subunit corresponding to the shape memory subunit can be changed. For example, when the length of the microcavity becomes longer, as shown in FIG. 2, the wavelength of the spectrum will also increase, such that there can be two brightness peaks on either side of the 0 degree viewing angle, as shown in FIG. 3. Here, the light emitted from the pixel sub-unit in which the length of the microcavity is changed may be light of which the intensity is weakest attenuated as the viewing angle increases among the three colors of RGB. The microcavity length of the light with the weakest attenuation intensity is increased, and the wavelength of the light generated by the microcavity is also increased, so that the intensity attenuation of the light generated by the microcavity is also increased along with the increase of the viewing angle, the deviation of color coordinates is further improved, and the color distortion of the RGB-SBS display device is effectively relieved.
The embodiment of the application sets up shape memory subunit and pixel subunit to make display panel can change the microcavity length of pixel subunit through driving shape memory subunit emergence deformation, and then make along with the visual angle increase, the intensity decay of the light of different colours can tend to unanimously, improves the skew of chromatic coordinate, effectively alleviates display panel's color distortion.
Fig. 4A is a schematic structural diagram of a display panel according to another embodiment of the present application.
In one embodiment of the present application, the substrate 3, the shape memory unit 2, and the pixel unit 1 may be sequentially stacked. Specifically, as shown in fig. 4A, the side of the pixel unit 1 close to the substrate 3 may be referred to as the side of non-display light emission. Accordingly, the side of the pixel unit 1 away from the substrate 3 may be referred to as a side on which light emission is displayed. Here, the shape memory sub-unit may be disposed on the non-display light emission side of the pixel sub-unit. For example, the anode of the pixel unit 1 may be formed on the shape memory unit 2.
Here, the shape memory unit 2 is disposed on the non-display light emitting side of the pixel unit 1, and it is not necessary to limit whether the material of the shape memory unit 2 is transparent or not, that is, the influence of the shape memory unit 2 on the display light of the pixel unit 1 can be eliminated; of course, when the shape memory cell 2 satisfies the light transmittance requirement, the shape memory cell 2 may be provided on the display light emission side of the pixel cell 1.
For example, the shape memory element 2 may be formed of a shape memory material to accomplish the above-mentioned deformation. Specifically, the shape memory unit 2 may include at least one of polyamino acid ester, polystyrene, and polyisoprene.
Alternatively, the pixel sub-unit may include a cathode, an anode, and an organic light emitting layer, and the shape memory sub-unit may be disposed between the anode and the cathode of the pixel sub-unit. Here, the material used for the shape memory unit 2 may be a transparent shape memory material.
In one embodiment of the present application, the pixel unit may include a cathode layer and an anode layer, the shape memory sub-unit may be disposed between the cathode and the anode of the pixel sub-unit, and the cathode of the pixel sub-unit may be a sub-unit of the cathode layer, and the anode of the pixel sub-unit may be a sub-unit of the anode layer. That is, there may be a gap between the anodes of two adjacent pixel sub-units, and similarly, there may be a gap between the cathodes of two adjacent pixel sub-units. When the shape memory sub-unit corresponding to a pixel sub-unit is deformed, the distance between the cathode and the anode of the pixel sub-unit is increased. Due to the above mentioned spacing, the cathode and the anode of another pixel subunit adjacent to the pixel subunit can be protected from the deformation.
It will be appreciated that the configuration of the anode and cathode of two adjacent pixel sub-units may also be such when the shape memory sub-unit is not disposed between the cathode and anode of the pixel sub-unit.
In an embodiment of the present application, the display panel may further include an elastic buffer structure, and the elastic buffer structure may be disposed at a side of the cathode layer of the pixel unit away from the anode layer, and may also be disposed at a side of the anode layer of the pixel unit away from the cathode layer. Here, the elastic buffer structure may deform along with the deformation of the shape memory subunit, and may also recover along with the recovery of the shape memory subunit, so that the deformation space of the shape memory subunit may be preset in the display panel.
In particular, when the shape memory sub-unit is disposed between the cathode and the anode of the pixel sub-unit, the elastic buffer structure may be disposed at a side of the cathode layer of the pixel sub-unit away from the anode layer, or at a side of the anode layer of the pixel sub-unit away from the cathode layer. The elastic buffer structure may be arranged between the cathode and the anode of the pixel sub-unit when the shape memory sub-unit is arranged on a side of the anode layer of the pixel sub-unit facing away from the cathode layer, or when the shape memory sub-unit is arranged on a side of the cathode layer of the pixel sub-unit facing away from the anode layer.
It should be understood that the elastic buffer structure may be a newly added film layer, or one of the existing film layers, such as a buffer layer on the array substrate, or one of the encapsulation layers. Of course, the elastic buffer structure may also be an elastic buffer cavity, so as to satisfy the requirement of the deformation space preset with the shape memory subunit, which is not limited herein.
In one embodiment of the present application, the deformation driving subunit may include a deformation driving circuit. Here, the shape memory subunit may be electrically connected to the deformation driving circuit.
Specifically, in the embodiment of the present application, in order to allow the shape memory subunit to be deformed, the stimulation type of the shape memory subunit by the deformation driving subunit can be heat, power, chemical treatment, and the like. For display panels, power-on is the most convenient type of stimulus to implement. Thus, the type of stimulus that the shape-change driving subunit applies to the shape-memory subunit may preferably be energized.
To achieve the above-mentioned energized stimulus, the deformation driving subunit may include a deformation driving circuit. The shape memory subunit may be connected within the deformation driving circuit. When the deformation driving circuit is conducted, the shape memory subunit can be in a power-on state, and deformation of the shape memory subunit under the action of electrical stimulation is further achieved.
Here, one shape memory subunit corresponds to one pixel subunit, and one deformation driving subunit corresponds to one shape memory subunit. When a shape change driving subunit includes a shape change driving circuit, one shape change driving circuit may correspond to one shape memory subunit. It should be understood that, the deformation driving unit controls the deformation condition of the shape memory subunit through the control unit, and when the pixel subunit related to each pixel unit 1 is divided into multiple categories, the deformation driving circuits corresponding to the pixel subunits of one category may be respectively a single circuit, that is, the control unit may send a control instruction to each circuit respectively. Of course, the deformation driving circuit corresponding to a type of pixel subunit may also be connected to a circuit, that is, the control unit may send a control instruction to the circuit, that is, may control the type of pixel subunit.
In one embodiment of the present application, the deformation driving circuit may be disposed on a side of the shape memory subunit far from the pixel unit 1; alternatively, the deformation driving circuit may be disposed in a non-display area of the display panel.
Specifically, the deformation driving circuit may be disposed on a non-display light-emitting side of the pixel unit 1, or may be disposed in a non-display area of the display panel, so as to avoid an influence of the deformation driving circuit on a display effect of the display panel. Here, as shown in fig. 4A, the substrate 3 may be provided with a tft distortion driving circuit of the pixel sub-unit, and it should be understood that the tft distortion driving circuit of the shape memory sub-unit is different from the tft distortion driving circuit of the pixel sub-unit.
In one embodiment of the present application, the display device may further include a camera assembly and an image processing module electrically connected to the deformation driving circuit. Here, the image processing module may be configured to receive an image captured by the camera assembly; analyzing the image, and acquiring visual angle information of human eyes in the image; and sending a driving signal to a deformation driving circuit in the display panel according to the visual angle information. One deformation driving circuit may receive one driving signal, or a plurality of deformation driving circuits may receive one driving signal.
In another embodiment of the present application, prior to receiving the image captured by the camera assembly, the image processing module may be further configured to: receiving a screen lightening signal; and sending a camera shooting instruction to the camera shooting assembly according to the screen lightening signal.
For example, the display device may be a mobile phone, and the camera assembly may be a front camera of the mobile phone. When the user triggers the mobile phone to light up, the front-facing camera of the mobile phone can automatically shoot the user, and then the visual angle information of the user is judged according to the obtained shooting information, so that the shape memory subunits are determined to be deformed under the visual angle.
In one embodiment of the present application, the shape memory subunit may include a stationary phase layer and a softening phase layer disposed in a stack.
In particular, the shape memory subunit may be stacked by a plurality of stationary phase layers and a plurality of softening phase layers. Here, the direction of the lamination may be along the extension direction of the shape memory subunit, or may be perpendicular to the extension direction of the shape memory subunit, and the direction of the lamination is not limited herein.
The stationary phase layer may refer to a portion of the shape memory subunit that is not deformed by the stimulus of the deformation driving subunit. The softened phase layer may refer to a portion of the shape memory subunit that deforms under the stimulus of the deformation driving subunit. Here, the stationary phase layer may serve as a support, and the soft phase layer may serve to adjust the microcavity length of the pixel sub-unit.
Fig. 4B is a schematic structural diagram of a display panel according to still another embodiment of the present application. Fig. 4C is a schematic structural diagram of a display panel according to still another embodiment of the present application.
In one embodiment of the present application, as shown in fig. 4B, when the number of shape memory sub-units in one shape memory unit 2 is smaller than the number of pixel sub-units in one pixel unit 1, an auxiliary sub-unit 24 is further disposed in a pixel sub-unit where no shape memory sub-unit is disposed, and the auxiliary sub-unit 24 is disposed on the same layer as the shape memory sub-unit.
Specifically, as shown in fig. 4B, in one pixel unit 1, if there is a pixel sub-unit that is not disposed opposite to the deformation memory sub-unit, the pixel sub-unit may be disposed opposite to one auxiliary sub-unit 24. Here, the materials used for the auxiliary subunit 24 and the shape change memory subunit may be the same or different. When the materials used for the auxiliary subunit 24 and the deformation memory subunit are the same, the auxiliary subunit 24 may not be stimulated to deform. In one shape change memory element, the thickness of the shape change memory subunit and the auxiliary subunit 24 may be the same or different.
In one embodiment of the present application, as shown in fig. 4C, when the number of shape memory sub-units in one shape memory unit 2 is equal to the number of pixel sub-units in one pixel unit 1, a shape memory sub-unit 23 and an auxiliary sub-unit 24 may be simultaneously disposed in the same pixel sub-unit, and the total thickness of the auxiliary sub-unit 24 and the shape memory sub-unit 23 is close to or the same as the thickness of the shape memory sub-units 21 and 22 where the auxiliary sub-unit is not disposed.
As shown in fig. 4C, in one pixel unit 1, each pixel sub-unit may be disposed opposite to the deformation memory sub-unit. However, in one shape change memory unit, the thickness of each shape change memory subunit is different. The deformation memory subunit with a small thickness can be kept consistent with the thickness of the deformation memory subunit with a large thickness by means of the auxiliary subunit 24. Another aspect of the present application provides a display device. The display device may include the display panel of any one of the above.
Specifically, specific details of the display panel may refer to the above embodiments, and are not described herein again to avoid repetition.
The embodiment of the application sets up shape memory subunit and pixel subunit to make display device can change the microcavity length of pixel subunit through driving shape memory subunit emergence deformation, and then make along with the visual angle increase, the intensity decay of the light of different colours can tend to unanimously, improves the skew of chromatic coordinate, effectively alleviates display device's color distortion.
In one embodiment of the present application, the display device may further include a camera assembly and an image processing module. Here, the image processing module may be configured to receive an image acquired by the camera module, analyze the image, acquire visual angle information of human eyes in the image, and send a driving signal to the deformation driving circuit in the display panel according to the visual angle information.
Having described the display device according to the embodiment of the present application, the control method according to the embodiment of the present application is described below with reference to fig. 5. The execution subject of the method may be the above display device.
Fig. 5 is a schematic flowchart of a control method of a display apparatus according to an embodiment of the present application.
As shown in fig. 5, the control method may include:
step 510, receiving an image collected by the camera assembly.
Step 520, analyzing the image, and acquiring the visual angle information of the human eyes in the image.
Step 530, sending a driving signal to a deformation driving circuit of the display device according to the viewing angle information. Here, one deformation driving circuit receives one driving signal, or a plurality of deformation driving circuits receives one driving signal.
Specifically, the display device to which the control method is applied and the details of the control method may refer to the above embodiments, and are not described herein again to avoid repetition.
The embodiment of the application sets up shape memory subunit and pixel subunit to make the microcavity length of pixel subunit change through the deformation of shape memory subunit, and then make along with the visual angle increase, the intensity decay of the light of different colours can tend to unanimously, improves the skew of chromatic coordinate, effectively alleviates display device's color distortion.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modifications, equivalents and the like that are within the spirit and principle of the present application should be included in the scope of the present application.
Claims (10)
1. A display panel, comprising:
a pixel unit including a plurality of pixel sub-units;
the shape memory unit comprises at least one shape memory subunit, and one shape memory subunit is arranged opposite to one pixel subunit; and
and the deformation driving unit comprises at least one deformation driving subunit, and the deformation driving subunit is configured to drive the shape memory subunit to deform along the display light emitting direction of the pixel subunit which is opposite to the shape memory subunit.
2. The display panel of claim 1, wherein the pixel cells comprise at least three colors of the pixel sub-cells, and the at least one shape memory sub-cell corresponds to at least one color of the pixel sub-cells;
preferably, the number of the shape memory sub-units in the shape memory unit is the same as the number of the pixel sub-units in the pixel unit.
3. The display panel of claim 1, wherein the thickness of the shape memory sub-units corresponding to the pixel sub-units of different colors is the same or different.
4. The display panel of claim 1, wherein the shape memory sub-unit is disposed on a non-display light emitting side of the pixel sub-unit;
alternatively, the pixel subunit includes a cathode and an anode, and the shape memory subunit is disposed between the anode and the cathode.
5. The display panel of claim 1, wherein the shape change driving subunit comprises a shape change driving circuit, and the shape memory subunit is electrically connected to the shape change driving circuit; wherein,
the deformation driving circuit is arranged on the non-display light-emitting side of the pixel subunit;
or the deformation driving circuit is arranged in a non-display area of the display panel.
6. The display panel according to claim 1, wherein the shape memory unit is made of a material including at least one of polyamino acid ester, polystyrene, and polyisoprene.
7. The display panel of claim 1, further comprising an elastic buffer structure between the cathode and the anode of the pixel subunit, or on the non-display light emitting side of the pixel subunit, or on the display light emitting side of the pixel subunit.
8. A display device characterized by comprising the display panel according to any one of claims 1 to 7.
9. The display device of claim 8, further comprising a camera assembly and an image processing module, wherein,
the image processing module is used for receiving the image collected by the camera shooting assembly, analyzing the image, acquiring visual angle information of human eyes in the image, and sending a driving signal to the deformation driving circuit in the display panel according to the visual angle information.
10. A control method of a display device according to claim 9, comprising:
receiving an image collected by a camera shooting assembly;
the image processing module analyzes the image and acquires visual angle information of human eyes in the image; and
and sending a driving signal to the deformation driving circuit in the display panel according to the visual angle information.
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Application publication date: 20190528 |