TWI798043B - Variable ambient light compensation method for self-luminous display, display driver chip, display device and information processing device - Google Patents

Abstract

A variable ambient light compensation method for a self-luminous display, which includes: dividing a frame of uniform color display data into multiple frames of display data with different partial masks, and driving a self-luminous display accordingly, so that the self-luminous display can display correspondingly A plurality of different bright and dark distribution pictures, wherein, at least one of the adjacent pixels above, below, left, and right of each lighted pixel of each said light and dark distribution picture is off, and the frame is displayed in a uniform color Each pixel of the data is lit in one of the bright and dark distribution pictures; use a two-dimensional color camera to shoot these bright and dark distribution pictures to obtain multiple frames of color coordinates to be compensated, wherein each of the color coordinates to be compensated Both include a luminance value and two chromaticity values; and the color coordinate value of each lit pixel point of the color coordinates to be compensated in the frame is subtracted from the color coordinate average value of at least one off pixel point adjacent to it to generate multiple The frame is compensated for the color coordinates, and each lighted pixel point of the frames is compensated for the color coordinates to form a frame to remove the ambient light color coordinates.

Description

Variable ambient light compensation method for self-luminous display, display driver chip, display device and information processing device

The present invention relates to the display calibration of self-luminous displays, in particular to a display data compensation method of self-luminous displays which can remove the influence value of ambient light and can simultaneously complete 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 luminous efficiency of each pixel (including at least one display element) during the production process, and when there are some When the luminous efficiency of the pixels is inconsistent, the picture displayed on the screen will appear mura (non-uniform) phenomenon. Therefore, the general self-luminous display must compensate the display data of each pixel in the full screen before leaving the factory to ensure the picture quality.

However, when the self-luminous display is photographed to obtain sensing data of multiple frames for a color correction process, the sensing data will inevitably be interfered by external ambient light, causing the color correction process to still be performed. A mura phenomenon will appear on the display screen of the self-luminous display.

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

The main purpose of the present invention is to disclose an ambient light compensation method of a self-luminous display, which can remove the ambient light influence value of each pixel of a self-luminous display and can simultaneously complete the brightness and chromaticity correction of each pixel, thereby effectively eliminating the self-luminous display. The mura defect of emissive display.

Another object of the present invention is to disclose a display driver chip, which can remove the ambient light influence value of each pixel of a self-luminous display by the above-mentioned ambient light compensation method and can simultaneously complete the brightness and chromaticity correction of each pixel, thereby Effectively eliminate the mura defect of the self-luminous display.

Another object of the present invention is to disclose a display device, which can effectively eliminate the mura defect of a self-luminous display by using the above-mentioned display driver chip, thereby improving the quality of its display image.

Another object of the present invention is to disclose an information processing device, which can effectively eliminate the mura defect of a self-luminous display by using the above-mentioned display driver chip, thereby improving the quality of the display image.

To achieve the aforementioned purpose, a variable ambient light compensation method for a self-luminous display is proposed, which includes:

Using a control circuit to divide a frame of uniform color display data into multiple frames of display data with different partial masks and drive a self-luminous display accordingly, so that the self-luminous display can display a plurality of different bright and dark distribution pictures correspondingly, wherein, At least one of the adjacent pixels above, below, left, and right of each lighted pixel of each of the bright and dark distribution frames is off, and each pixel of the uniform color display data of the frame is in one of the bright In the dark distribution picture, it is light;

Using a two-dimensional color camera to capture the images of light and dark distribution to obtain multiple frames of color coordinates to be compensated, wherein each color coordinate to be compensated includes a brightness value and two chromaticity values; and

The control circuit subtracts the color coordinate value of each illuminated pixel point of the frame to be compensated color coordinates from the color coordinate average value of at least one off pixel point adjacent to it to generate multiple frames of compensated color coordinates, and according to these The lighted pixels of the frame with the compensated color coordinates form a frame without ambient light color coordinates.

In one embodiment, the three different frames of the de-ambient light color coordinates generated according to the three different frames of the uniform color display data are used in a color conversion process to generate the calibration of each pixel of the self-luminous display coefficient matrix.

In one embodiment, the color conversion procedure includes: forming a color description matrix according to the coordinate vectors of the corresponding pixels of the color coordinates of the de-ambient light in the three frames; and according to the inverse matrix of each color description matrix and The product of an ideal color matrix yields the matrix of correction coefficients for each pixel of the self-luminous display.

In one embodiment, each of the correction coefficient matrices is used to multiply each pixel grayscale vector in a frame of input display data to obtain a frame of output display data, and the frame of output display data is used to drive the self-luminous display .

To achieve the aforementioned purpose, the present invention further proposes a display driver chip, which has a memory module to store a correction coefficient matrix for each pixel of a self-luminous display, and a control circuit to multiply a frame according to each correction coefficient matrix Input the grayscale vector of each pixel in the display data to obtain a frame of output display data, and drive the self-luminous display according to the output display data of the frame, wherein each of the correction coefficient matrices is generated according to the color coordinates of the ambient light in multiple frames, and The frame de-ambient color coordinates are generated by performing a variable ambient light compensation method comprising:

The control circuit divides one frame of uniform color display data into multiple frames of display data with different partial masks and drives the self-luminous display accordingly, so that the self-luminous display displays a plurality of different bright and dark distribution pictures correspondingly, wherein each At least one of the adjacent pixels above, below, left, and right of each illuminated pixel of the light and dark distribution screen is off, and each pixel of the uniform color display data of the frame is within one of the light and dark Lights up in the distribution screen;

Using a two-dimensional color camera to capture the images of light and dark distribution to obtain multiple frames of color coordinates to be compensated, wherein each color coordinate to be compensated includes a brightness value and two chromaticity values; and

The control circuit subtracts the color coordinate value of each illuminated pixel point of the frame to be compensated color coordinates from the color coordinate average value of at least one off pixel point adjacent to it to generate multiple frames of compensated color coordinates, and according to these The lighted pixels of the compensated color coordinates of the frame form the de-ambient light color coordinates of a frame.

In one embodiment, the three different frames of the de-ambient light color coordinates generated according to the three different frames of the uniform color display data are used in a color conversion process to generate the calibration of each pixel of the self-luminous display coefficient matrix.

In one embodiment, the color conversion procedure includes: forming a color description matrix according to the coordinate vectors of the corresponding pixels of the color coordinates of the de-ambient light in the three frames; and according to the inverse matrix of each color description matrix and The product of an ideal color matrix yields the matrix of correction coefficients for each pixel of the self-luminous display.

To achieve the aforementioned purpose, the present invention further proposes a display device, which has a self-luminous display and a display driver chip for driving the self-luminous display, and the display driver chip has a memory module to store each of the self-luminous display. A correction coefficient matrix of pixels, and a control circuit to obtain a frame of output display data by multiplying each 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 A light-emitting display, wherein each of the correction coefficient matrices is generated according to multiple frames of ambient light color coordinates, and the frames of ambient light color coordinates are generated by performing a variable ambient light compensation method, the variable ambient light compensation Methods include:

The control circuit divides one frame of uniform color display data into multiple frames of display data with different partial masks and drives the self-luminous display accordingly, so that the self-luminous display displays a plurality of different bright and dark distribution pictures correspondingly, wherein each At least one of the adjacent pixels above, below, left, and right of each illuminated pixel of the light and dark distribution screen is off, and each pixel of the uniform color display data of the frame is within one of the light and dark Lights up in the distribution screen;

Using a two-dimensional color camera to capture the images of light and dark distribution to obtain multiple frames of color coordinates to be compensated, wherein each color coordinate to be compensated includes a brightness value and two chromaticity values; and

The control circuit subtracts the color coordinate value of each illuminated pixel point of the frame to be compensated color coordinates from the color coordinate average value of at least one off pixel point adjacent to it to generate multiple frames of compensated color coordinates, and according to these The lighted pixels of the compensated color coordinates of the frame form the de-ambient light color coordinates of a frame.

In one embodiment, the three different frames of the de-ambient light color coordinates generated according to the three different frames of the uniform color display data are used in a color conversion process to generate the calibration of each pixel of the self-luminous display coefficient matrix.

In one embodiment, the color conversion procedure includes: forming a color description matrix according to the coordinate vectors of the corresponding pixels of the color coordinates of the de-ambient light in the three frames; and according to the inverse matrix of each color description matrix and The product of an ideal color matrix yields the matrix of correction coefficients for each pixel of the self-luminous display.

In possible embodiments, the self-luminous display can be an LED display or an OLED display.

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-luminous display 110 and a display driver chip 120 for driving the self-luminous display 110. The self-luminous display 110 can be an LED (light emitting diode; light emitting diode) display Or an OLED (organic light emitting diode; organic light emitting diode) display, the display driver chip 120 has a memory module 121, a control circuit 122 and a drive circuit 123, wherein the memory module 121 is used to store self-luminous A correction coefficient matrix for each pixel of the display 110, and each correction coefficient matrix is generated according to a color conversion program; the control circuit 122 is used to multiply each pixel gray scale in a frame of input display data according to each correction coefficient matrix vector to obtain a frame of output display data; and the driving circuit 123 drives the self-luminous display 110 according to the frame of output display data.

Each of the correction coefficient matrices is generated according to the different de-ambient light color coordinates of the three frames, and the de-ambient light color coordinates of the frames are generated by executing a variable ambient light compensation process, the variable ambient light compensation process includes: (1) The control circuit 122 divides one frame of uniform color display data into multiple frames of display data with different partial masks and drives the self-luminous display 110 accordingly, so that the self-luminous display 110 correspondingly displays a plurality of different bright and dark distribution images, Wherein, at least one of the adjacent pixels above, below, left, and right of each lighted pixel of each of the bright and dark distribution pictures is off, and each pixel of the uniform color display data of the frame is within one set. In the picture of light and dark distribution, it is lighted. Please refer to FIGS. 2 a and 2 b , which are schematic diagrams of two different bright and dark distribution images displayed by the self-luminous display 110 . As shown in Figures 2a and 2b, a light and dark distribution picture 110a is complementary to a light and dark distribution picture 110b, so that each pixel can be lit in the light and dark distribution picture 110a or the light and dark distribution picture 110b, and its phase At least one pixel among adjacent pixels is off.

(2) Use a two-dimensional color camera (not shown in the figure) to take pictures of these bright and dark distribution pictures to obtain multiple frames of color coordinates to be compensated, wherein each of the color coordinates to be compensated includes a brightness value and two color coordinates degree value.

(3) The control circuit 122 subtracts the color coordinate value of each illuminated pixel point of the color coordinates to be compensated in each frame from the color coordinate average value of at least one off pixel point adjacent to it to generate multiple frames of compensated color coordinates, and The lighted pixels of the compensated color coordinates of the frames form a frame to remove the ambient light color coordinates.

The principle of the present invention is explained as follows: the ambient light influence value of each lit pixel is obtained by the color coordinate average value of its adjacent off-point pixels, therefore, even if the ambient light influence value of each pixel has Differently, the present invention can still accurately remove the ambient light interference of each pixel, thereby effectively eliminating the mura defect of the self-luminous display.

In addition, in the color conversion procedure, the color coordinates of the de-ambient light that are different in three frames are used to generate the correction coefficient matrix of each pixel of the self-luminous display 110, wherein the color conversion procedure may include: The coordinate vectors of each corresponding pixel of the described de-ambient light color coordinates respectively form a color description matrix; Correction coefficient matrix.

Specifically, the color conversion program includes: (1) According to the coordinate vectors of the pixels corresponding to the color coordinates of the de-ambient light in the three different frames, a color description matrix is formed; and (2) Generate the correction coefficient matrix for each pixel of the light-emitting display 110 according to the product of the inverse matrix of each color description matrix and an ideal color matrix.

For example, the color conversion procedure of the present invention may first drive the self-luminous display 110 with blue display data in which the display data of each pixel in a frame is (200, 0, 0) respectively to obtain a first frame. Ambient light color coordinates, the red display data of each pixel in one frame is (0, 200, 0) to drive the self-luminous display 110 to obtain the ambient light color coordinates described in the second frame, and each pixel in one frame The display data of the pixels are all green display data of (0, 0, 200) to drive the self-luminous display 110 to obtain the color coordinates of the de-ambient light in the third frame.

，依該第一幀所述去環境光色彩座標、該第二幀所述去除環境光之色彩座標及該第三幀所述去除環境光之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顯示器110之各像素之校正係數矩陣

，亦即，

。 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 without ambient light, the color coordinates of the second frame without ambient light, and the color coordinates of the third frame without ambient light according to the three color coordinates of each corresponding pixel each form a color description matrix

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

,that is,

.

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。 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 known from the above description that the present invention discloses an ambient light compensation method for a self-luminous display. Please refer to FIG. 3 , which shows a flowchart of an embodiment of an ambient light compensation method for a self-luminous display of the present invention. As shown in Figure 3, the method includes: using a control circuit to divide a frame of uniform color display data into multiple frames of display data with different partial masks, and drive a self-luminous display accordingly, so that the self-luminous display can display multiple frames correspondingly. different light-dark distribution pictures, wherein, at least one of the adjacent pixels above, below, left, and right of each lighted pixel in each said light-dark distribution picture is off, and the frame displays data in a uniform color Each of the pixels is lighted in one of the bright and dark distribution pictures (step a); use a two-dimensional color camera to shoot these bright and dark distribution pictures to obtain multiple frames of color coordinates to be compensated, wherein each of the said to be compensated Compensation color coordinates all include a luminance value and two chromaticity values (step b); The color coordinates of the pixels are averaged to generate multiple frames of compensated color coordinates, and each lighted pixel of the compensated color coordinates of the frames forms a frame of ambient light color coordinates (step c).

In addition, the present invention further uses the three frames of different de-ambient light color coordinates generated according to the three frames of different uniform color display data in a color conversion program to generate correction coefficients for each pixel of the self-luminous display Matrix, wherein, the color conversion program includes: according to the coordinate vectors of the corresponding pixels of the three frames of different described de-ambient light color coordinates to form a color description matrix; and according to the inverse matrix of each of the color description matrices and an ideal The product of the color matrices yields the matrix of correction coefficients for each pixel of the self-luminous display.

In addition, each of the correction coefficient matrices is used to multiply each pixel grayscale vector in a frame of input display data to obtain a frame of output display data, and the frame of output display data is used to drive the self-luminous display.

In addition, according to the above description, the present invention further provides an information processing device. Please refer to FIG. 4 , which shows a block diagram of an embodiment of an information processing device of the present invention. As shown in Figure 4, 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 ambient light compensation method of the self-luminous display of the present invention can remove the ambient light influence value of each pixel of a self-luminous display and can simultaneously complete the brightness and chromaticity correction of each pixel, thereby effectively eliminating the mura defect of the self-luminous display .

2. The display driver chip of the present invention can remove the ambient light influence value of each pixel of a self-luminous display by the above-mentioned ambient light compensation method and can simultaneously complete the brightness and chromaticity correction of each pixel, thereby effectively eliminating the self-luminous display. The mura flaw.

3. The display device of the present invention can effectively eliminate mura defects of a self-luminous display by using the above-mentioned display driver chip, thereby improving the quality of its display screen.

4. The information processing device of the present invention can effectively eliminate mura defects of a self-luminous display by using the above-mentioned display driver chip, thereby improving the quality of its display screen. 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 display 110a, 110b: bright and dark distribution pictures 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 divide a frame of uniform color display data into multiple frames of display data with different partial masks and drive a self-luminous display accordingly, so that the self-luminous display can display multiple different light and dark distribution images correspondingly , wherein, at least one of the adjacent pixels above, below, left, and right of each lighted pixel of each of the bright and dark distribution pictures is off, and each pixel of the uniform color display data of the frame is in one In the light and dark distribution picture, it is light. Step b: Utilize a two-dimensional color camera to take pictures of the light and dark distribution pictures to obtain multiple frames of color coordinates to be compensated, wherein each color coordinate to be compensated includes a brightness value and two chromaticity values. Step c: the control circuit subtracts the color coordinate value of each lighted pixel point of the frame to be compensated color coordinates from the color coordinate value of at least one off pixel point adjacent to it to generate multiple frames of compensated color coordinates, and The lighted pixels of the compensated color coordinates of the frames form a frame to remove the ambient light color coordinates.

FIG. 1 shows a block diagram of an embodiment of a display device of the present invention. 2a and 2b are schematic diagrams of two different bright and dark distribution images displayed by the self-luminous display of the display device shown in FIG. 1 . FIG. 3 is a flowchart of an embodiment of an ambient light compensation method for a self-luminous display of the present invention. FIG. 4 is a block diagram of an embodiment of an information processing device of the present invention.

Step a: Use a control circuit to divide a frame of uniform color display data into multiple frames of display data with different partial masks and drive a self-luminous display accordingly, so that the self-luminous display can display multiple different light and dark distribution images correspondingly , wherein, at least one of the adjacent pixels above, below, left, and right of each lighted pixel of each of the bright and dark distribution pictures is off, and each pixel of the uniform color display data of the frame is in one In the light and dark distribution picture, it is light

Step b: Utilize a two-dimensional color camera to take pictures of these bright and dark distribution pictures to obtain multiple frames of color coordinates to be compensated, wherein each of the color coordinates to be compensated includes a brightness value and two chromaticity values

Step c: the control circuit subtracts the color coordinate value of each lighted pixel point of the frame to be compensated color coordinates from the color coordinate value of at least one off pixel point adjacent to it to generate multiple frames of compensated color coordinates, and Compensate the color coordinates of these frames according to each lit pixel to form a frame to remove the ambient light color coordinates

Claims (13)

A variable ambient light compensation method for a self-luminous display, comprising: Using a control circuit to divide a frame of uniform color display data into multiple frames of display data with different partial masks and drive a self-luminous display accordingly, so that the self-luminous display can display a plurality of different bright and dark distribution pictures correspondingly, wherein, At least one of the adjacent pixels above, below, left, and right of each lighted pixel of each of the bright and dark distribution frames is off, and each pixel of the uniform color display data of the frame is in one of the bright In the dark distribution picture, it is light; Using a two-dimensional color camera to capture the images of light and dark distribution to obtain multiple frames of color coordinates to be compensated, wherein each color coordinate to be compensated includes a brightness value and two chromaticity values; and The control circuit subtracts the color coordinate value of each illuminated pixel point of the frame to be compensated color coordinates from the color coordinate average value of at least one off pixel point adjacent to it to generate multiple frames of compensated color coordinates, and according to these The lighted pixels of the frame with the compensated color coordinates form a frame without ambient light color coordinates. The variable ambient light compensation method for a self-luminous display as described in item 1 of the scope of the patent application, wherein the three frames of different ambient light color coordinates generated by the three frames of different uniform color display data are used A correction coefficient matrix for each pixel of the self-luminous display is generated in a color conversion process. The variable ambient light compensation method for a self-luminous display as described in item 2 of the scope of the patent application, wherein the color conversion procedure includes: the coordinate vectors of each corresponding pixel of the de-ambient light color coordinates of the three frames are different forming a color description matrix; and generating the correction coefficient matrix of each pixel of the self-luminous display according to the product of the inverse matrix of each color description matrix and an ideal color matrix. The variable ambient light compensation method for a self-luminous display as described in item 3 of the scope of the patent application, wherein each of the correction coefficient matrices is used to multiply each pixel gray scale vector in a frame of input display data to obtain a frame of output display data, and the frame output display data is used to drive the self-luminous display. A display driver chip, which has a memory module to store a correction coefficient matrix of each pixel of a self-luminous display, and a control circuit to multiply the gray scale of each pixel in a frame of input display data according to each correction coefficient matrix Vector to obtain a frame of output display data, and drive the self-luminous display according to the frame output display data, wherein each of the correction coefficient matrices is generated according to the multi-frame de-ambient light color coordinates, and these frames de-ambient light color coordinate systems Generated by implementing a variable ambient light compensation method comprising: The control circuit divides one frame of uniform color display data into multiple frames of display data with different partial masks and drives the self-luminous display accordingly, so that the self-luminous display displays a plurality of different bright and dark distribution pictures correspondingly, wherein each At least one of the adjacent pixels above, below, left, and right of each illuminated pixel of the light and dark distribution screen is off, and each pixel of the uniform color display data of the frame is within one of the light and dark Lights up in the distribution screen; Using a two-dimensional color camera to capture the images of light and dark distribution to obtain multiple frames of color coordinates to be compensated, wherein each color coordinate to be compensated includes a brightness value and two chromaticity values; and The control circuit subtracts the color coordinate value of each illuminated pixel point of the frame to be compensated color coordinates from the color coordinate average value of at least one off pixel point adjacent to it to generate multiple frames of compensated color coordinates, and according to these The lighted pixels of the compensated color coordinates of the frame form the de-ambient light color coordinates of a frame. The display driver chip as described in item 5 of the scope of the patent application, wherein the three different frames of the de-ambient light color coordinates generated according to the three frames of different uniform color display data are used in a color conversion process to A correction coefficient matrix for each pixel of the self-luminous display is generated. The display driver chip as described in item 6 of the scope of the patent application, wherein the color conversion process includes: forming a color description matrix according to the coordinate vectors of the corresponding pixels of the color coordinates of the de-ambient light in the three different frames; and The correction coefficient matrix of each pixel of the self-luminous display is generated according to the product of the inverse matrix of each color description matrix and an ideal color matrix. A display device, which has a self-luminous display and a display driver chip for driving the self-luminous display, the display driver chip has a memory module to store a correction coefficient matrix for each pixel of the self-luminous display, and a The control circuit multiplies each pixel grayscale vector in a frame of input display data by each correction coefficient matrix to obtain a frame of output display data, and drives the self-luminous display according to the frame output display data, wherein each of the correction coefficients The matrix is generated based on multiple frames of de-ambient color coordinates, and the frames of de-ambient color coordinates are generated by performing a variable ambient light compensation method comprising: The control circuit divides one frame of uniform color display data into multiple frames of display data with different partial masks and drives the self-luminous display accordingly, so that the self-luminous display displays a plurality of different bright and dark distribution pictures correspondingly, wherein each At least one of the adjacent pixels above, below, left, and right of each illuminated pixel of the light and dark distribution screen is off, and each pixel of the uniform color display data of the frame is within one of the light and dark Lights up in the distribution screen; Using a two-dimensional color camera to capture the images of light and dark distribution to obtain multiple frames of color coordinates to be compensated, wherein each color coordinate to be compensated includes a brightness value and two chromaticity values; and The control circuit subtracts the color coordinate value of each illuminated pixel point of the frame to be compensated color coordinates from the color coordinate average value of at least one off pixel point adjacent to it to generate multiple frames of compensated color coordinates, and according to these The lighted pixels of the compensated color coordinates of the frame form the de-ambient light color coordinates of a frame. The display device as described in item 8 of the scope of the patent application, wherein the three different frames of the de-ambient light color coordinates generated according to the three different frames of the uniform color display data are used in a color conversion process to generate The correction coefficient matrix of each pixel of the self-luminous display. The display device as described in item 9 of the scope of the patent application, wherein the color conversion procedure includes: forming a color description matrix according to the coordinate vectors of the corresponding pixels of the color coordinates of the de-ambient light in the three different frames; and The product of the inverse matrix of each of the color description matrices and an ideal color matrix produces the matrix of correction coefficients for each pixel of the self-luminous display. The display device as described in claim 8 of the patent application, wherein the self-luminous display is an LED display or an OLED display. An information processing device has a central processing unit and a display device as described in any one of items 8 to 11 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 12 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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