TWI804262B - Mura compensation method for self-luminous display screen, display driver chip, display device and information processing device - Google Patents

Abstract

A mura compensation method for a self-luminous display screen, comprising: driving a self-luminous display with one frame of first color display data, one frame of second color display data and one frame of third color display data to make one of the self-luminous display The display screen displays a first frame, a second frame and a third frame respectively; a two-dimensional color camera is used to shoot the first frame, the second frame and the third frame to respectively obtain a first frame color coordinate, A second frame color coordinate and a third frame color coordinate; an ideal color matrix is formed according to a first ideal color coordinate, a second ideal color coordinate and a third ideal color coordinate, according to the first frame color coordinate, the The three color coordinates of the color coordinates of the second frame and the corresponding pixels of the color coordinates of the third frame each form a color description matrix, and the display is generated according to the product of the inverse matrix of each of the color description matrices and the ideal color matrix A correction coefficient matrix for each pixel of the screen; and multiplying each pixel grayscale vector in a frame of input display data by a corresponding correction coefficient matrix to obtain a frame of output display data, and output display data according to the frame Driving the self-luminous display.

Description

Mura compensation method for self-luminous display screen, display driver chip, display device and information processing device

The present invention relates to uniform display correction of self-luminous displays, in particular to a mura compensation method capable of simultaneously completing brightness and chromaticity correction.

Self-luminous displays, such as OLED (Organic Light Emitting Diode) or LED (Light Emitting Diode) displays, it is difficult to ensure the consistency of the luminous efficiency of each display element in the production process, and when the luminous efficiency of some display elements is inconsistent , the picture displayed on the screen will appear mura (non-uniform) phenomenon. Therefore, before leaving the factory, the general self-luminous display must compensate the display data of each display element in the full screen to ensure the picture quality.

In addition, in the existing mura compensation methods, some of them generate the correction coefficients required for each corresponding display data by sensing the display brightness difference between the display elements of a self-luminous display, and some of them generate the correction coefficients required by each corresponding display data by sensing The display chromaticity difference among the display elements is used to generate the correction coefficient required for each corresponding display data. However, the mura may be caused by the luminance difference between the display elements, and may also be caused by the chromaticity difference between the display elements. Therefore, there is still room for improvement in the existing mura compensation method.

In order to solve the above problems, there is an urgent need in the art for a novel uniform display correction method for self-luminous displays.

The main purpose of the present invention is to disclose a mura compensation method for a self-luminous display screen, which can perform a color conversion operation on each pixel data of a frame of input display data through each corresponding correction coefficient matrix, so as to simultaneously compensate the mura of a display screen The brightness difference and chromaticity difference between the display elements can effectively eliminate the mura defect of the display screen.

Another object of the present invention is to disclose a display driver chip, which can simultaneously compensate the brightness difference and chromaticity difference between the display elements of a display screen through the above-mentioned mura compensation method, thereby effectively eliminating the mura defect of the display screen.

Another object of the present invention is to disclose a display device, which can simultaneously compensate the luminance difference and chromaticity difference between the display elements of a display screen by using the above-mentioned display driving chip, thereby improving the quality of the display image.

Another object of the present invention is to disclose an information processing device, which can simultaneously compensate the brightness difference and chromaticity difference between the display elements of a display device by using the above-mentioned display driver chip, thereby improving the quality of the display image.

In order to achieve the aforementioned purpose, a mura compensation method for a self-luminous display screen is proposed, which includes:

Using a control circuit to drive a self-luminous display with one frame of first color display data, one frame of second color display data and one frame of third color display data so that one display screen of the self-luminous display displays a first picture respectively , a second picture and a third picture;

Use a two-dimensional color camera to shoot the first frame, the second frame and the third frame to obtain a first frame color coordinate, a second frame color coordinate and a third frame color coordinate respectively, wherein the first frame The picture, the second picture and the third picture respectively have a first ideal color coordinate, a second ideal color coordinate and a third ideal color coordinate, and each of the color coordinates includes a brightness value and two chromaticities value;

The control circuit forms an ideal color matrix according to the first ideal color coordinate, the second ideal color coordinate and the third ideal color coordinate, and forms an ideal color matrix according to the first frame color coordinate, the second frame color coordinate and the third frame color The three color coordinates of each corresponding pixel of the coordinates form a color description matrix, and a correction coefficient matrix for each pixel of the display screen is generated according to the product of the inverse matrix of each of the color description matrices and the ideal color matrix; and

The control circuit multiplies each pixel grayscale vector in a frame of input display data by a corresponding correction coefficient matrix to obtain a frame of output display data, and drives the self-luminous display according to the frame of output display data.

In one embodiment, the first color is red, the second color is green, and the third color is blue.

To achieve the aforementioned purpose, the present invention further proposes a display driver chip, which has a memory module to store the correction coefficient matrix of each pixel of a self-luminous pixel array module, and a control circuit to multiply the correction coefficient matrix according to each The grayscale vector of each pixel in the input display data of the previous frame is obtained to obtain a frame of output display data, and the self-luminous pixel array module is driven according to the output display data of the frame, wherein each of the correction coefficient matrices is based on a color conversion program Generated, the program includes:

Using the control circuit to respectively drive the self-luminous pixel array module with one frame of first color display data, one frame of second color display data and one frame of third color display data so that the self-luminous pixel array module respectively displays a first color display data a picture, a second picture and a third picture;

Use a two-dimensional color camera to shoot the first frame, the second frame and the third frame to obtain a first frame color coordinate, a second frame color coordinate and a third frame color coordinate respectively, wherein the first frame The picture, the second picture and the third picture respectively have a first ideal color coordinate, a second ideal color coordinate and a third ideal color coordinate, and each of the color coordinates includes a brightness value and two chromaticities value; and

The control circuit forms an ideal color matrix according to the first ideal color coordinate, the second ideal color coordinate and the third ideal color coordinate, and forms an ideal color matrix according to the first frame color coordinate, the second frame color coordinate and the third frame color The three color coordinates of each corresponding pixel of the coordinates form a color description matrix, and according to the product of the inverse matrix of each color description matrix and the ideal color matrix, one of the pixels of the self-luminous pixel array module is generated. The above correction coefficient matrix.

In one embodiment, the first color is red, the second color is green, and the third color is blue.

In a possible embodiment, the self-luminous pixel array module can be an LED array module or an OLED array module.

To achieve the aforementioned purpose, the present invention further proposes a display device, which has a self-luminous pixel array module and a display driver chip for driving the self-luminous pixel array module, and the display driver chip has a memory module for storing A correction coefficient matrix for each pixel of the self-luminous pixel array module, and a control circuit to obtain a frame of output display data by multiplying each correction coefficient matrix by a gray scale vector of each pixel in a frame of input display data, and The self-luminous pixel array module is driven according to the output display data of the frame, wherein each correction coefficient matrix is generated according to a color conversion procedure, and the procedure includes:

Using the control circuit to respectively drive the self-luminous pixel array module with one frame of first color display data, one frame of second color display data and one frame of third color display data so that the self-luminous pixel array module respectively displays a first color display data a picture, a second picture and a third picture;

Use a two-dimensional color camera to shoot the first frame, the second frame and the third frame to obtain a first frame color coordinate, a second frame color coordinate and a third frame color coordinate respectively, wherein the first frame The picture, the second picture and the third picture respectively have a first ideal color coordinate, a second ideal color coordinate and a third ideal color coordinate, and each of the color coordinates includes a brightness value and two chromaticities value; and

The control circuit forms an ideal color matrix according to the first ideal color coordinate, the second ideal color coordinate and the third ideal color coordinate, and forms an ideal color matrix according to the first frame color coordinate, the second frame color coordinate and the third frame color The three color coordinates of each corresponding pixel of the coordinates form a color description matrix, and according to the product of the inverse matrix of each color description matrix and the ideal color matrix, one of the pixels of the self-luminous pixel array module is generated. The above correction coefficient matrix.

In one embodiment, the first color is red, the second color is green, and the third color is blue.

In a possible embodiment, the self-luminous pixel array module can be an LED array module or an OLED array module.

To achieve the aforementioned purpose, the present invention further proposes an information processing device, which has a central processing unit and the aforementioned display device, wherein the central processing unit is used to communicate with the display device.

In a possible embodiment, the information processing device may be a smart phone, a portable computer, a vehicle computer, a wearable electronic device or an advertising billboard.

In order to enable your review committee members to further understand the structure, features and purpose of the present invention, drawings and detailed descriptions of preferred specific embodiments are hereby attached.

Please refer to FIG. 1 , which shows a block diagram of an embodiment of a display device of the present invention. As shown in FIG. 1, a display device 100 has a self-illuminating pixel array module 110 and a display driver chip 120 for driving the self-illuminating pixel array module 110. The self-illuminating pixel array module 110 can be an LED (light emitting diode (light emitting diode) array module or an OLED (organic light emitting diode; organic light emitting diode) array module, the display driver chip 120 has a memory module 121, a control circuit 122 and a driving circuit 123 , wherein, the memory module 121 is used to store a correction coefficient matrix for each pixel of the self-luminous pixel array module 110, and each of the correction coefficient matrices is generated according to a color conversion procedure; the control circuit 122 is used for The correction coefficient matrix is multiplied by each pixel grayscale vector in a frame of input display data to obtain a frame of output display data; and the driving circuit 123 drives the self-luminous pixel array module 110 according to the frame of output display data.

Additionally, the program includes: (1) Utilize the control circuit 122 to drive the self-luminous pixel array module 110 with one frame of first color display data, one frame of second color display data and one frame of third color display data so that the self-luminous pixel array module 110 respectively displaying a first picture, a second picture and a third picture; (2) Utilize a two-dimensional color camera (not shown in Fig. 1) to shoot the first frame, the second frame and the third frame to obtain a first frame color coordinate, a second frame color coordinate and a The third frame of color coordinates, wherein, the first frame, the second frame and the third frame respectively have a first ideal color coordinate, a second ideal color coordinate and a third ideal color coordinate, and each of the colors The coordinates each contain a luminance value and two chrominance values; and (3) The control circuit 122 forms an ideal color matrix according to the first ideal color coordinate, the second ideal color coordinate and the third ideal color coordinate, and forms an ideal color matrix according to the first frame color coordinate, the second frame color coordinate and the first frame color coordinate The three color coordinates of the corresponding pixels of the three frames of color coordinates each form a color description matrix, and each of the self-luminous pixel array modules 110 is generated according to the product of the inverse matrix of the color description matrix and the ideal color matrix. One of the pixels in the correction coefficient matrix.

In addition, preferably, the combination of the first color, the second color and the third color is (blue, red, green). For example, the color conversion procedure of the present invention can first drive the self-luminous pixel array module 110 with blue display data in which the display data of each pixel in a frame is (200, 0, 0) to make the self-luminous pixel array The module 110 displays the first picture, and drives the self-luminous pixel array module 110 with the red display data of each pixel in one frame being (0, 200, 0) so that the self-luminous pixel array module 110 displays the first picture. Two frames, and the green display data of each pixel in one frame is (0, 0, 200) to drive the self-luminous pixel array module 110 so that the self-luminous pixel array module 110 displays the third frame.

Then, use the two-dimensional color camera to shoot the first frame, the second frame and the third frame to respectively obtain a first frame color coordinates [(X _{r_m} (1), Y _{r_m} (1), Z _{r_m} (1 )), (X _{r_m} (2), Y _{r_m} (2), Z _{r_m} (2)),…, (X _{r_m} (N), Y _{r_m} (N), Z _{r_m} (N))], a second frame Color coordinates [(X _{g_m} (1), Y _{g_m} (1), Z _{g_m} (1)), (X _{g_m} (2), Y _{g_m} (2), Z _{g_m} (2)),…, (X _{g_m} (N ), Y _{g_m} (N), Z _{g_m} (N))] and a third frame color coordinates [(X _{b_m} (1), Y _{b_m} (1), Z _{b_m} (1)), (X _{b_m} (2), Y _{b_m} (2), Z _{b_m} (2)),..., (X _{b_m} (N), Y _{b_m} (N), Z _{b_m} (N))], N is an integer greater than 1, wherein the first picture, The second frame and the third frame respectively have a first ideal color coordinate (X _{r_t} , Y _{r_t} , Z _{r_t} ), a second ideal color coordinate (X _{g_t} , Y _{g_t} , Z _{g_t} ) and a third ideal color coordinates (X _{b_t} , Y _{b_t} , Z _{b_t} ), and the second element (Y) in each of the color coordinates represents a brightness value, and the first and third elements (X, Z) are combined to represent a chromaticity value.

，依該第一幀色彩座標、該第二幀色彩座標及該第三幀色彩座標之各對應像素之三個所述色彩座標各組成一色彩描述矩陣

，j為介於1至N之整數，並依各該色彩描述矩陣之反矩陣和該理想色彩矩陣之積產生該自發光像素陣列模組110之各像素之校正係數矩陣

，亦即，

。 依此，控制電路122即可依各該校正係數矩陣

乘上一幀輸入顯示資料中之各個像素灰階向量

而獲得一幀輸出顯示資料[(r _in(1), g _in(1), b _in(1)), (r _in(2), g _in(2), b _in(2)),…, (r _in(N), g _in(N), b _in(N))]，亦即，該幀輸出顯示資料之各像素之資料可表為

，j為介於1至N之整數。 Then, the control circuit 122 according to the first ideal color coordinates (X _{r_t} , Y _{r_t} , Z _{r_t} ), the second ideal color coordinates (X _{g_t} , Y _{g_t} , Z _{g_t} ) and the third ideal color coordinates (X _{b_t} , Y _{b_t} , Z _{b_t} ) form an ideal color matrix

, according to the color coordinates of the first frame, the color coordinates of the second frame and the color coordinates of the third frame, each of the three color coordinates of each corresponding pixel forms a color description matrix

, j is an integer ranging from 1 to N, and the correction coefficient matrix of each pixel of the self-luminous pixel array module 110 is generated according to the product of the inverse matrix of each color description matrix and the ideal color matrix

,that is,

. According to this, the control circuit 122 can use each of the correction coefficient matrices

Multiply the grayscale vector of each pixel in the input display data of one frame

And get a frame of output display data [(r _in (1), g _in (1), b _in (1)), (r _in (2), g in (2), _{b in (} 2)),…, (r _in (N), g _in (N), _bin (N))], that is, the data of each pixel of the frame output display data can be expressed as

, j is an integer between 1 and N.

It can be seen from the above description that the present invention discloses a mura compensation method for a self-luminous display screen. Please refer to FIG. 2 , which shows a flow chart of an embodiment of the mura compensation method of the self-luminous display screen of the present invention. As shown in Figure 2, the method includes: using a control circuit to respectively drive a self-luminous display with one frame of first color display data, one frame of second color display data and one frame of third color display data to make the self-luminous display A display screen respectively displays a first frame, a second frame and a third frame (step a); utilize a two-dimensional color camera to shoot the first frame, the second frame and the third frame to obtain a respectively The first frame color coordinates, a second frame color coordinates and a third frame color coordinates, wherein the first frame, the second frame and the third frame have a first ideal color coordinate and a second ideal color respectively coordinates and a third ideal color coordinates, and each of the color coordinates includes a brightness value and two chromaticity values (step b); the control circuit according to the first ideal color coordinates, the second ideal color coordinates and the The third ideal color coordinates form an ideal color matrix, and each of the three color coordinates of the corresponding pixels of the first frame color coordinates, the second frame color coordinates and the third frame color coordinates forms a color description matrix, And generate a correction coefficient matrix (step c) of each pixel of the display screen according to the product of the inverse matrix of each of the color description matrix and the ideal color matrix; and the control circuit multiplies a corresponding correction coefficient matrix by A frame of grayscale vectors of each pixel in the input display data is obtained to obtain a frame of output display data, and the self-luminous display is driven according to the frame of output display data (step d).

In step a, preferably, the combination of the first color, the second color and the third color is (blue, red, green).

In addition, according to the above description, the present invention further provides an information processing device. Please refer to FIG. 3 , which shows a block diagram of an embodiment of an information processing device of the present invention. As shown in Figure 3, an information processing device 200 has a central processing unit 210 and a display device 220, wherein the display device 220 is realized by the display device 100 shown in Figure 1, and the central processing unit 210 is used to communicate with the display device The device 220 communicates. In addition, the information processing device 200 can be a smart phone, a portable computer, a vehicle computer, a wearable electronic device or an advertising billboard.

With the design disclosed above, the present invention has the following advantages: 1. The mura compensation method of the self-luminous display screen of the present invention can perform a color conversion operation on each pixel data of a frame of input display data through each corresponding correction coefficient matrix, so as to simultaneously compensate the difference between the display elements of a display screen Brightness difference and chromaticity difference, so as to effectively eliminate the mura defect of the display screen.

2. The display driver chip of the present invention can simultaneously compensate the luminance difference and chromaticity difference between the display elements of a display screen through the above-mentioned mura compensation method, thereby effectively eliminating the mura defect of the display screen.

3. The display device of the present invention can simultaneously compensate the brightness difference and chromaticity difference between the display elements of a display screen through the above-mentioned display driving chip, thereby improving the quality of its display screen.

4. The information processing device of the present invention can simultaneously compensate the brightness difference and chromaticity difference between the display elements of a display device through the above-mentioned display driving chip, thereby improving the quality of the display image.

What is disclosed in this case is a preferred embodiment. For example, any partial changes or modifications derived from the technical ideas of this case and easily deduced by those who are familiar with the technology are within the scope of the patent right of this case.

To sum up, regardless of the purpose, means and efficacy of this case, it shows that it is very different from the conventional technology, and its first invention is practical, and it does meet the patent requirements of the invention. I implore your review committee to understand it clearly and grant a patent as soon as possible. Society is for the Most Prayer.

100: display device 110: Self-luminous pixel array module 120: display driver chip 121: memory module 122: control circuit 123: Drive circuit 200: information processing device 210: central processing unit 220: display device Step a: use a control circuit to drive a self-luminous display with one frame of first color display data, one frame of second color display data and one frame of third color display data so that one display screen of the self-luminous display displays a A first picture, a second picture and a third picture Step b: Utilize a two-dimensional color camera to shoot the first frame, the second frame and the third frame to respectively obtain a first frame color coordinate, a second frame color coordinate and a third frame color coordinate, wherein, The first picture, the second picture and the third picture respectively have a first ideal color coordinate, a second ideal color coordinate and a third ideal color coordinate, and each of the color coordinates includes a brightness value and two chroma value Step c: The control circuit forms an ideal color matrix according to the first ideal color coordinate, the second ideal color coordinate and the third ideal color coordinate, and according to the first frame color coordinate, the second frame color coordinate and the first The three color coordinates of the corresponding pixels of the three frames of color coordinates each form a color description matrix, and a correction coefficient for each pixel of the display screen is generated according to the product of the inverse matrix of the color description matrix and the ideal color matrix. matrix Step d: The control circuit multiplies each pixel grayscale vector in a frame of input display data by a corresponding correction coefficient matrix to obtain a frame of output display data, and drives the self-luminous display according to the frame output display data .

FIG. 1 shows a block diagram of an embodiment of a display device of the present invention. FIG. 2 is a flow chart of an embodiment of the mura compensation method of the self-luminous display screen of the present invention. FIG. 3 is a block diagram of an embodiment of an information processing device of the present invention.

Step a: use a control circuit to drive a self-luminous display with one frame of first color display data, one frame of second color display data and one frame of third color display data so that one display screen of the self-luminous display displays a A first picture, a second picture and a third picture

Step b: Utilize a two-dimensional color camera to shoot the first frame, the second frame and the third frame to respectively obtain a first frame color coordinate, a second frame color coordinate and a third frame color coordinate, wherein, The first picture, the second picture and the third picture respectively have a first ideal color coordinate, a second ideal color coordinate and a third ideal color coordinate, and each of the color coordinates includes a brightness value and two chroma value

Step c: The control circuit forms an ideal color matrix according to the first ideal color coordinate, the second ideal color coordinate and the third ideal color coordinate, and according to the first frame color coordinate, the second frame color coordinate and the first The three color coordinates of the corresponding pixels of the three frames of color coordinates each form a color description matrix, and a correction coefficient for each pixel of the display screen is generated according to the product of the inverse matrix of the color description matrix and the ideal color matrix. matrix

Step d: The control circuit multiplies each pixel grayscale vector in a frame of input display data by a corresponding correction coefficient matrix to obtain a frame of output display data, and drives the self-luminous display according to the frame output display data

Claims (10)

A mura compensation method for a self-luminous display screen, comprising: Using a control circuit to drive a self-luminous display with one frame of first color display data, one frame of second color display data and one frame of third color display data so that one display screen of the self-luminous display displays a first picture respectively , a second picture and a third picture; Use a two-dimensional color camera to shoot the first frame, the second frame and the third frame to obtain a first frame color coordinate, a second frame color coordinate and a third frame color coordinate respectively, wherein the first frame The picture, the second picture and the third picture respectively have a first ideal color coordinate, a second ideal color coordinate and a third ideal color coordinate, and each of the color coordinates includes a brightness value and two chromaticities value; The control circuit forms an ideal color matrix according to the first ideal color coordinate, the second ideal color coordinate and the third ideal color coordinate, and forms an ideal color matrix according to the first frame color coordinate, the second frame color coordinate and the third frame color The three color coordinates of each corresponding pixel of the coordinates form a color description matrix, and a correction coefficient matrix for each pixel of the display screen is generated according to the product of the inverse matrix of each of the color description matrices and the ideal color matrix; and The control circuit multiplies each pixel grayscale vector in a frame of input display data by a corresponding correction coefficient matrix to obtain a frame of output display data, and drives the self-luminous display according to the frame of output display data. The mura compensation method for a self-luminous display screen as described in item 1 of the scope of the patent application, wherein the first color is red, the second color is green, and the third color is blue. A display driver chip, which has a memory module to store the correction coefficient matrix of each pixel of a self-luminous pixel array module, and a control circuit to multiply each of the correction coefficient matrix by each frame of input display data according to each A frame of output display data is obtained from the gray scale vector of the pixel, and the self-luminous pixel array module is driven according to the output display data of the frame, wherein each of the correction coefficient matrices is generated according to a color conversion procedure, and the procedure includes: Using the control circuit to respectively drive the self-luminous pixel array module with one frame of first color display data, one frame of second color display data and one frame of third color display data so that the self-luminous pixel array module respectively displays a first color display data a picture, a second picture and a third picture; Use a two-dimensional color camera to shoot the first frame, the second frame and the third frame to obtain a first frame color coordinate, a second frame color coordinate and a third frame color coordinate respectively, wherein the first frame The picture, the second picture and the third picture respectively have a first ideal color coordinate, a second ideal color coordinate and a third ideal color coordinate, and each of the color coordinates includes a brightness value and two chromaticities value; and The control circuit forms an ideal color matrix according to the first ideal color coordinate, the second ideal color coordinate and the third ideal color coordinate, and forms an ideal color matrix according to the first frame color coordinate, the second frame color coordinate and the third frame color The three color coordinates of each corresponding pixel of the coordinates form a color description matrix, and the correction coefficient matrix of each pixel of the display screen is generated according to the product of the inverse matrix of each color description matrix and the ideal color matrix . In the display driver chip described in claim 3 of the patent application, the first color is red, the second color is green, and the third color is blue. The display driver chip as described in claim 3 of the patent application, wherein the self-luminous pixel array module is an LED array module or an OLED array module. A display device, which has a self-luminous pixel array module and a display driver chip for driving the self-luminous pixel array module, the display driver chip has a memory module to store the self-luminous pixel array module A correction coefficient matrix of pixels, and a control circuit to obtain a frame of output display data by multiplying the correction coefficient matrix by each pixel gray scale vector in a frame of input display data, and drive the self-display data according to the frame output display data In the light-emitting pixel array module, each of the correction coefficient matrices is generated according to a color conversion program, and the program includes: Using the control circuit to respectively drive the self-luminous pixel array module with one frame of first color display data, one frame of second color display data and one frame of third color display data so that the self-luminous pixel array module respectively displays a first color display data a picture, a second picture and a third picture; Use a two-dimensional color camera to shoot the first frame, the second frame and the third frame to obtain a first frame color coordinate, a second frame color coordinate and a third frame color coordinate respectively, wherein the first frame The picture, the second picture and the third picture respectively have a first ideal color coordinate, a second ideal color coordinate and a third ideal color coordinate, and each of the color coordinates includes a brightness value and two chromaticities value; and The control circuit forms an ideal color matrix according to the first ideal color coordinate, the second ideal color coordinate and the third ideal color coordinate, and forms an ideal color matrix according to the first frame color coordinate, the second frame color coordinate and the third frame color The three color coordinates of each corresponding pixel of the coordinates form a color description matrix, and according to the product of the inverse matrix of each color description matrix and the ideal color matrix, one of the pixels of the self-luminous pixel array module is generated. The above correction coefficient matrix. The display device as described in claim 6 of the patent application, wherein the first color is red, the second color is green, and the third color is blue. The display device described in item 6 of the scope of the patent application, wherein the self-luminous pixel array module is an LED array module or an OLED array module. An information processing device has a central processing unit and a display device as described in any one of items 6 to 8 of the scope of the patent application, wherein the central processing unit is used to communicate with the display device. The information processing device described in item 9 of the scope of the patent application is one selected from the group consisting of a smart phone, a portable computer, a vehicle-mounted computer, a wearable electronic device and an advertising billboard device.

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