TW202343424A - Pixel brightness compensation method of OLED display panel, OLED display device, and information processing device characterized in that the total brightness of the light emitted by the red sub-pixel alone, the green sub-pixel alone and the blue sub-pixel alone almost equal to the mixed light brightness simultaneously emitted by the three sub-pixels - Google Patents

Abstract

The present invention mainly discloses the pixel brightness compensation method for an OLED display panel, which is executed by a display driver chip and includes the following steps: on the basis of an initial red sub-pixel gray scale value, an initial green sub-pixel gray scale value and an initial blue sub-pixel gray scale value, determining a red sub-pixel compensation datum, a green sub-pixel compensation datum and a blue sub-pixel compensation datum; performing a multiplication operation of the red sub-pixel compensation datum, the green sub-pixel compensation datum and the blue sub-pixel compensation datum with the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the initial blue sub-pixel gray scale value, respectively, so as to obtain a target red sub-pixel gray scale value, a target green sub-pixel gray scale value and a target blue sub-pixel gray scale value to drive a pixel. In the application of the pixel brightness compensation method of the present invention, the total brightness of the brightness of the red light emitted by the red sub-pixel alone, the brightness of the green light emitted by the green sub-pixel alone and the brightness of the blue light emitted by the blue sub-pixel alone will be almost equal to the mixed light brightness simultaneously emitted by the three sub-pixels.

Description

Pixel brightness compensation method of OLED display panel, OLED display device, and information processing device

The present invention relates to the technical field of OLED display devices, and in particular, to a pixel brightness compensation method for an OLED display panel.

It is known that organic light-emitting diodes (OLEDs) have the advantages of self-luminous properties, high brightness, high contrast, wide viewing angle, power consumption, high reaction rate, etc., so they have been widely used in self-luminous applications. The production of display panels includes active OLED (i.e., AMOLED) display panels and passive OLED (i.e., PMOLED) display panels. FIG. 1 is a block diagram of a conventional OLED display device. As shown in Figure 1, the OLED display device 1a is used in an electronic device (such as a smart phone), and mainly includes an OLED display panel 11a and at least one display driver chip 12a, wherein the OLED display panel 11a includes M ×N pixels, and each pixel includes a red sub-pixel 11Ra, a green sub-pixel 11Ga and a blue sub-pixel 11Ba.

As the application of the OLED panel 11a becomes more and more popular, users have higher and higher specifications for the display accuracy of the OLED display device 1a. It is worth mentioning that one of the specifications is: for a given pixel, the pixel brightness when only the red sub-pixel 11Ra is driven, and the pixel brightness when only the green sub-pixel 11Ra is driven The pixel brightness below and the pixel brightness when only the blue sub-pixel 11Ba is driven is the sum of the pixel brightness when three sub-pixels (11Ra, 11Ga, 11Ba) are driven at the same time The ratio between pixel brightness and pixel brightness must be close to 1. At present, the industry generally believes that the aforementioned pixel brightness ratio specification is not ideal (i.e., the difference from the ideal value is too much 1) is due to the poor effect of voltage drop compensation (i.e., IR-drop compensation).

2A to 2D are respectively the first to fourth front views of the OLED panel 11a. To explain in more detail, in FIG. 2A , only the red sub-pixel 11Ra (ie, the OLED element) among a specified pixel is driven to emit light. Furthermore, in FIG. 2B , only the green sub-pixel 11Ga among the designated pixels is driven to emit light. By analogy, in FIG. 2C , only the blue sub-pixel 11Ba among the designated pixels is driven to emit light. Differently, in FIG. 2D , among the specified pixels, a red sub-pixel 11Ra, a green sub-pixel 11Ga and a blue sub-pixel 11Ba are driven to emit light at the same time. The following table (1) summarizes the brightness values of each sub-pixel emitting light individually and the brightness values of three sub-pixels emitting light together in Figures 2A to 2D. Moreover, the following table (2) organizes the grayscale values of each sub-pixel in Figures 2A to 2D. Table 1) Figure 2A (red sub-pixel emits light alone) Figure 2B (Green sub-pixel emits light alone) Figure 2C (Blue sub-pixel emits light alone) Figure 2D (three sub-pixels emit light together) Pixel brightness value 145 nits 407 nits 36.5 nits 564.3 nits

Further, the following table (2) sorts out the grayscale values of each sub-pixel in Figures 2A to 2D. Table 2) Figure 2A Figure 2B Figure 2C Figure 2D Red sub-pixel grayscale value 255 0 0 255 Green sub-pixel grayscale value 0 255 0 255 Blue sub-pixel grayscale value 0 0 255 255

Therefore, according to the above table (1), the pixel brightness ratio can be calculated = (145+407+36.5)/564.3=1.0425. To sum up, the three sub-pixels (11Ra, 11Ga, 11Ba) contained in a pixel are driven to emit light at the same time, and then the three sub-pixels in the pixel are each driven to emit light (same gray scale value) , it can be found that the pixel brightness when only the red sub-pixel 11Ra is driven, the pixel brightness when only the green sub-pixel 11Ra is driven, and the pixel brightness when only the blue sub-pixel 11Ba is driven The pixel brightness when driven is the sum of the pixel brightness, and the pixel brightness ratio between the pixel brightness when three sub-pixels (11Ra, 11Ga, 11Ba) are driven at the same time will not be equal to 1. However, the existing technology does not improve the pixel compensation scheme and/or the brightness compensation scheme of the OLED display panel to address this defect.

It can be seen from the above description that a new pixel brightness compensation method for OLED display panels is urgently needed in this field.

The main purpose of the present invention is to provide a pixel brightness compensation method for an OLED display panel, which is executed by a display driver chip. When the pixel brightness compensation method of the present invention is applied, after the OLED display panel is compensated, the red light brightness of the red sub-pixel alone, the green light brightness of the green sub-pixel alone, and the blue sub-pixel alone emit light. The sum of the brightness of one of the blue light luminances will be almost equal to the mixed light luminance of the three sub-pixels emitting light at the same time.

In order to achieve the above object, the present invention proposes a pixel brightness compensation method for the OLED display panel, which is executed by a display driver chip and includes the following steps: Receive an input display data; Determine a red sub-pixel compensation data, a green sub-pixel based on an initial target brightness, an initial red sub-pixel gray scale value, an initial green sub-pixel gray scale value and an initial blue sub-pixel gray scale value Compensation data and one blue sub-pixel compensation data; The red sub-pixel compensation data, the green sub-pixel compensation data and the blue sub-pixel compensation data are respectively combined with the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the initial blue sub-pixel gray scale value. The color sub-pixel grayscale value is subjected to a multiplication operation to obtain a target red sub-pixel grayscale value, a target green sub-pixel grayscale value and a target blue sub-pixel grayscale used to drive a pixel. value.

In a possible embodiment, the display driver chip is configured based on the initial target brightness, the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the initial blue sub-pixel gray scale value. The red sub-pixel compensation data, the green sub-pixel compensation data and the blue sub-pixel compensation data are found in the three-dimensional lookup table.

In another possible embodiment, the display driving chip is based on the initial target brightness, the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the initial blue sub-pixel gray scale value. A data search operation and a three-dimensional space interpolation operation are performed in a three-dimensional lookup table to obtain the red sub-pixel compensation data, the green sub-pixel compensation data and the blue sub-pixel compensation data.

In one embodiment, the OLED display panel includes M×N pixels, each of the pixels includes a red sub-pixel, a green sub-pixel and a blue sub-pixel, and the three-dimensional lookup table is Generate using the following steps: Fixing the panel load rate of the OLED display panel; Record a first pixel brightness when only the red sub-pixel is driven, a second pixel brightness when only the green sub-pixel is driven, and a first pixel brightness when only the blue sub-pixel is driven The sum of the pixel brightness of the third pixel when being driven is the sum of the brightness of a pixel when the red sub-pixel, the green sub-pixel and the blue sub-pixel are driven at the same time. The brightness ratio of one pixel between Change the gray scale values of the red sub-pixel, the green sub-pixel and/or the blue sub-pixel a plurality of times, thereby obtaining a plurality of the pixel brightness ratios; Establishing a correlation data including a plurality of the pixel brightness ratios, a plurality of red sub-pixel grayscale values, a plurality of green sub-pixel grayscale values, and a plurality of blue sub-pixel grayscale values; and An inverse gamma transformation is performed on the correlation data.

Furthermore, the present invention also provides an OLED display device, which includes at least one display driver chip and an OLED display panel. It is characterized in that, after receiving an input display data, the display driver chip performs the OLED display of the present invention as described above. The pixel brightness compensation method of the panel is used to obtain an output display data, so that the OLED display panel is displayed and driven based on the output display data.

The present invention also provides an OLED display device, which includes at least one display driver chip and an OLED display panel. It is characterized in that the display driver chip executes a pixel brightness compensation method of the OLED display panel to convert an input display data into An output display data that drives the OLED display panel to perform image display; the pixel brightness compensation method of the OLED display panel includes the following steps: Receive an input display data; Determine a red sub-pixel compensation data, a green sub-pixel based on an initial target brightness, an initial red sub-pixel gray scale value, an initial green sub-pixel gray scale value and an initial blue sub-pixel gray scale value compensation data and one blue sub-pixel compensation data; and The red sub-pixel compensation data, the green sub-pixel compensation data and the blue sub-pixel compensation data are respectively combined with the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the initial blue sub-pixel gray scale value. The color sub-pixel grayscale value is subjected to a multiplication operation to obtain a target red sub-pixel grayscale value, a target green sub-pixel grayscale value and a target blue sub-pixel grayscale used to drive a pixel. value.

In a possible embodiment, the display driver chip is configured based on the initial target brightness, the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the initial blue sub-pixel gray scale value. The red sub-pixel compensation data, the green sub-pixel compensation data and the blue sub-pixel compensation data are found in the three-dimensional lookup table.

In another possible embodiment, the display driving chip is based on the initial target brightness, the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the initial blue sub-pixel gray scale value. A data search operation and a three-dimensional space interpolation operation are performed in a three-dimensional lookup table to obtain the red sub-pixel compensation data, the green sub-pixel compensation data and the blue sub-pixel compensation data.

In one embodiment, the OLED display panel includes M×N pixels, each of the pixels includes a red sub-pixel, a green sub-pixel and a blue sub-pixel, and the three-dimensional lookup table is Generate using the following steps: Fixing the panel load rate of the OLED display panel; Record a first pixel brightness when only the red sub-pixel is driven, a second pixel brightness when only the green sub-pixel is driven, and a first pixel brightness when only the blue sub-pixel is driven The sum of the pixel brightness of the third pixel when being driven is the sum of the brightness of a pixel when the red sub-pixel, the green sub-pixel and the blue sub-pixel are driven at the same time. The brightness ratio of one pixel between Change the gray scale values of the red sub-pixel, the green sub-pixel and/or the blue sub-pixel a plurality of times, thereby obtaining a plurality of the pixel brightness ratios; Establishing a correlation data including a plurality of the pixel brightness ratios, a plurality of red sub-pixel grayscale values, a plurality of green sub-pixel grayscale values, and a plurality of blue sub-pixel grayscale values; and An inverse gamma transformation is performed on the correlation data.

The present invention also provides an information processing device, which has the OLED display device of the present invention as described above. In a feasible embodiment, the information processing device is selected from the group consisting of smart TVs, smart phones, smart watches, smart bracelets, tablet computers, notebook computers, all-in-one computers, access control devices, and electronic doors. An electronic device in a group of locks.

In order to enable the review committee to further understand the structure, characteristics, purpose, and advantages of the present invention, drawings and detailed descriptions of preferred embodiments are attached below.

Please refer to FIG. 3 , which shows a block diagram of an OLED display device using a pixel brightness compensation method of an OLED display panel according to the present invention. As shown in Figure 3, the OLED display device 1 is used in an electronic device (such as a smart phone) and mainly includes an OLED display panel 11 and at least one display driver chip 12, wherein the OLED display panel 11 includes M ×N pixels, and each pixel includes a red sub-pixel 11R, a green sub-pixel 11G and a blue sub-pixel 11B. It is worth noting that the display driver chip 12 is provided with a pixel brightness compensation unit inside, so that after the display driver chip 12 receives an input display data transmitted by a host computer (such as an application processor of a smartphone), Execute a pixel brightness compensation method of an OLED display panel of the present invention to obtain an output display data, thereby performing display driving on the OLED display panel 11 based on the output display data.

FIG. 4 shows a flow chart of a pixel brightness compensation method for an OLED display panel according to the present invention. As shown in FIGS. 3 and 4 , when the display driver chip 12 performs the pixel brightness compensation method of the OLED display panel of the present invention, it first performs step S1: receiving an input display data. Next, in step S2, the display driver chip 12 determines based on an initial target brightness, an initial red sub-pixel gray scale value, an initial green sub-pixel gray scale value and an initial blue sub-pixel gray scale value. One red sub-pixel compensation data, one green sub-pixel compensation data and one blue sub-pixel compensation data. To explain in more detail, the display driver chip 12 is based on the initial target brightness, the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the initial blue sub-pixel gray scale value. The red sub-pixel compensation data, the green sub-pixel compensation data and the blue sub-pixel compensation data are found in the three-dimensional lookup table.

It should be added that in some cases, the display driver chip 12 cannot directly find the corresponding red sub-pixel compensation data, the green sub-pixel compensation data and the corresponding red sub-pixel compensation data in the three-dimensional lookup table. Blue sub-pixel compensation data. At this time, the display driver chip 12 can perform a three-dimensional search based on the initial target brightness, the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value, and the initial blue sub-pixel gray scale value. A data search operation and a three-dimensional space interpolation operation are performed in the table to obtain the red sub-pixel compensation data, the green sub-pixel compensation data and the blue sub-pixel compensation data. Wherein, the three-dimensional space interpolation operation is, for example, a tetrahedron method (Tedrahedron Method) or a trilinear interpolation method (Trilinear Interpolation).

5A to 5D are first to fourth front views of the OLED panel 11 respectively. Here, it should be added that the aforementioned three-dimensional lookup table is generated using the following plural steps. First, the panel load rate of the OLED display panel 11 is fixed, and then a first pixel brightness is recorded when only the red sub-pixel 11R is driven (as shown in FIG. 5A), and when only the green sub-pixel 11R is driven, the brightness of the first pixel is recorded. The second pixel brightness when the sub-pixel 11G is driven (as shown in Figure 5B) and the third pixel brightness when only the blue sub-pixel 11B (as shown in Figure 5C) is driven The sum of the brightness of a pixel is between the brightness of a pixel when the red sub-pixel 11R, the green sub-pixel 11R and the blue sub-pixel 11B are driven at the same time (as shown in Figure 5D) The brightness ratio of a pixel. Subsequently, the grayscale values of the red sub-pixel 11R, the green sub-pixel 11G and/or the blue sub-pixel 11B are changed a plurality of times, thereby obtaining a plurality of pixel brightness ratios.

Figure 6 is a schematic diagram of the generation process of a three-dimensional lookup table. Then, as shown in Figure 6, a plurality of pixel brightness ratios, a plurality of red sub-pixel grayscale values, a plurality of green sub-pixel grayscale values, and a plurality of blue sub-pixel grayscale values are created. a related data. Finally, an inverse gamma transformation is performed on the associated data to obtain the three-dimensional lookup table. It should be supplemented that in the three-dimensional lookup table shown in Figure 6, the so-called red sub-pixel grayscale ratio refers to the gray-scale value of the red sub-pixel (Target gray of red sub-pixel) and the initial red sub-pixel. The ratio between pixel grayscale values. Similarly, the green sub-pixel grayscale ratio refers to the ratio between the green sub-pixel grayscale value and the initial green sub-pixel grayscale value, and the blue sub-pixel grayscale ratio refers to the blue sub-pixel grayscale ratio. The ratio between the subpixel grayscale value and the initial blue subpixel grayscale value.

As shown in Figure 3 and Figure 4, the method steps then execute step S3: Compare the red sub-pixel compensation data, the green sub-pixel compensation data and the blue sub-pixel compensation data with the initial red sub-pixel gray respectively. The level value, the initial green sub-pixel gray scale value and the initial blue sub-pixel gray scale value are subjected to a multiplication operation, thereby obtaining a target red sub-pixel gray scale value and a target green sub-pixel gray scale value used to drive a pixel. The sub-pixel grayscale value and a target blue sub-pixel grayscale value.

For example, when the OLED display panel 11 is driven to display images based on the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the initial blue sub-pixel gray scale value, the following table ( 3) Arrange the brightness values of each sub-pixel emitting light individually and the brightness values of three sub-pixels emitting light together in Figures 5A to 5D. table 3) Figure 5A (red sub-pixel emits light alone) Figure 5B (Green sub-pixel emits light alone) Figure 5C (Blue sub-pixel emits light alone) Figure 5D (three sub-pixels emit light together) Pixel brightness value 170.9524 nits 437.2012 Nit 44.56146 nits 620.6601 nits

Therefore, according to the above table (3), the pixel brightness ratio can be calculated = (170.9524+437.2012+44.56146)/620.6601=1.0516.

On the other hand, when the pixel brightness compensation method of the OLED display panel of the present invention is applied, the display driver chip 12 finally determines the target red sub-pixel grayscale value, the target green sub-pixel grayscale value and the target grayscale value. The target blue sub-pixel grayscale value drives the OLED display panel 11 to display images, and the following table (4) summarizes the brightness values of each sub-pixel emitting light individually and the brightness values of three sub-pixels emitting light together in Figures 5A to 5D value. Table 4) Figure 5A (red sub-pixel emits light alone) Figure 5B (Green sub-pixel emits light alone) Figure 5C (Blue sub-pixel emits light alone) Figure 5D (three sub-pixels emit light together) Pixel brightness value 170.5584 nits 436.3147 nits 44.38527 nits 648.3742 nits

Therefore, according to the above table (3), the pixel brightness ratio can be calculated = (170.5584+436.3147+44.38527)/648.3742=1.0044. Obviously, the experimental data confirms that when the display driver chip 12 operates according to the target red sub-pixel gray scale value, the target green sub-pixel gray scale value and the target blue sub-pixel gray scale value, When display data is output to drive the OLED display panel 11 for image display, the red sub-pixel 11R emits red light brightness alone, the green sub-pixel 11G emits individual green light brightness, and the blue sub-pixel 11B emits individual light brightness. The sum of the brightness of one of the blue light luminances will be almost equal to the mixed light luminance of the three sub-pixels emitting light at the same time.

In this way, the above has completely and clearly explained the pixel brightness compensation method of an OLED display panel of the present invention; and from the above, it can be known that the present invention has the following advantages:

(1) The present invention discloses a brightness compensation method for an OLED display panel, which is executed by a display driver chip. In the case of applying the pixel compensation method of the present invention, after the OLED display panel is compensated, the red light brightness of the red sub-pixel alone, the green light brightness of the green sub-pixel alone, and the green light brightness of the blue sub-pixel alone. The sum of the brightness of one of the blue light luminances will be almost equal to the mixed light luminance of the three sub-pixels emitting light at the same time.

(2) The present invention also provides an OLED display device, which includes at least one display driver chip and an OLED display panel, and the display driver chip is used to perform the pixel brightness compensation method of the OLED display panel described above.

(3) The present invention also provides an information processing device, which has the OLED display device of the present invention as described above. Moreover, the information processing device is selected from the group consisting of smart TVs, smart phones, smart watches, smart bracelets, tablet computers, notebook computers, all-in-one computers, access control devices, and electronic door locks. an electronic device among them.

It must be emphasized that the foregoing disclosed in this case are preferred embodiments. Any partial changes or modifications derived from the technical ideas of this case and easily inferred by those familiar with the art do not deviate from the patent of this case. category of rights.

To sum up, regardless of the purpose, means and effects of this case, it shows that it is completely different from the conventional technology, and that the invention is practical first, and indeed meets the patent requirements for inventions. I sincerely ask the review committee to take a clear look and grant the patent as soon as possible for your benefit. Society is a prayer for the Supreme Being.

1a:OLED display device 11a:OLED display panel 11Ra: red sub-pixel 11Ga: green sub-pixel 11Ba: blue sub-pixel 12a: Display driver chip 1:OLED display device 11:OLED display panel 11R: red sub-pixel 11G: Green sub-pixel 11B: Blue sub-pixel 12:Display driver chip 121: Pixel brightness compensation unit S1: Receive an input display data S2: Determine a red sub-pixel compensation data, a green sub-pixel based on an initial target brightness, an initial red sub-pixel gray scale value, an initial green sub-pixel gray scale value and an initial blue sub-pixel gray scale value. Pixel compensation data and one blue sub-pixel compensation data S3: Compare the red sub-pixel compensation data, the green sub-pixel compensation data and the blue sub-pixel compensation data with the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the The initial blue sub-pixel grayscale value is subjected to a multiplication operation to obtain a target red sub-pixel grayscale value, a target green sub-pixel grayscale value and a target blue sub-pixel used to drive a pixel. Grayscale value

Figure 1 is a block diagram of a conventional OLED display device; Figure 2A is a first front view of the OLED panel shown in Figure 1; Figure 2B is a second front view of the OLED panel shown in Figure 1; Figure 2C is a third front view of the OLED panel shown in Figure 1; Figure 2D is a fourth front view of the OLED panel shown in Figure 1; Figure 3 is a block diagram of an OLED display device applying a pixel brightness compensation method of an OLED display panel according to the present invention; Figure 4 is a flow chart of a pixel brightness compensation method for an OLED display panel according to the present invention; Figure 5A is a first front view of the OLED panel shown in Figure 3; Figure 5B is a second front view of the OLED panel shown in Figure 3; Figure 5C is a third front view of the OLED panel shown in Figure 3; Figure 5D is a fourth front view of the OLED panel shown in Figure 3; and Figure 6 is a schematic diagram of the generation process of a three-dimensional lookup table.

S1: Receive an input display data

S2: Determine a red sub-pixel compensation data, a green sub-pixel based on an initial target brightness, an initial red sub-pixel gray scale value, an initial green sub-pixel gray scale value and an initial blue sub-pixel gray scale value. Pixel compensation data and one blue sub-pixel compensation data

S3: Compare the red sub-pixel compensation data, the green sub-pixel compensation data and the blue sub-pixel compensation data with the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the The initial blue sub-pixel grayscale value is subjected to a multiplication operation to obtain a target red sub-pixel grayscale value, a target green sub-pixel grayscale value and a target blue sub-pixel used to drive a pixel. Grayscale value

Claims (10)

A pixel brightness compensation method for an OLED display panel, which is executed by a display driver chip and includes the following steps: Receive an input display data; Determine a red sub-pixel compensation data, a green sub-pixel based on an initial target brightness, an initial red sub-pixel gray scale value, an initial green sub-pixel gray scale value and an initial blue sub-pixel gray scale value compensation data and one blue sub-pixel compensation data; and The red sub-pixel compensation data, the green sub-pixel compensation data and the blue sub-pixel compensation data are respectively combined with the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the initial blue sub-pixel gray scale value. The color sub-pixel grayscale value is subjected to a multiplication operation to obtain a target red sub-pixel grayscale value, a target green sub-pixel grayscale value and a target blue sub-pixel grayscale used to drive a pixel. value. The pixel brightness compensation method of an OLED display panel as described in claim 1, wherein the display driver chip is based on the initial target brightness, the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the The initial blue sub-pixel grayscale value is used to find the red sub-pixel compensation data, the green sub-pixel compensation data and the blue sub-pixel compensation data in a three-dimensional lookup table. The pixel brightness compensation method of an OLED display panel as described in claim 1, wherein the display driver chip is based on the initial target brightness, the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the The initial blue sub-pixel grayscale value is used to perform a data lookup operation and a three-dimensional space interpolation operation in a three-dimensional lookup table, thereby obtaining the red sub-pixel compensation data, the green sub-pixel compensation data and The blue sub-pixel compensation data. The pixel brightness compensation method of an OLED display panel as described in claim 2, wherein the OLED display panel includes M×N pixels, and each of the pixels includes a red sub-pixel, a green sub-pixel and A blue sub-pixel, and the three-dimensional lookup table is generated using the following steps: Fixing the panel load rate of the OLED display panel; Record a first pixel brightness when only the red sub-pixel is driven, a second pixel brightness when only the green sub-pixel is driven, and a first pixel brightness when only the blue sub-pixel is driven The sum of the pixel brightness of the third pixel when being driven is the sum of the brightness of a pixel when the red sub-pixel, the green sub-pixel and the blue sub-pixel are driven at the same time. The brightness ratio of one pixel between Change the grayscale values of the red sub-pixel, the green sub-pixel and/or the blue sub-pixel a plurality of times, thereby obtaining a plurality of the pixel brightness ratios; Establishing a correlation data including a plurality of the pixel brightness ratios, a plurality of red sub-pixel grayscale values, a plurality of green sub-pixel grayscale values, and a plurality of blue sub-pixel grayscale values; and An inverse gamma transformation is performed on the correlation data. An OLED display device, which includes at least one display driver chip and an OLED display panel, characterized in that, after receiving an input display data, the display driver chip performs as described in any one of claims 1 to 4 The pixel brightness compensation method of the OLED display panel is used to obtain an output display data, so that the OLED display panel is displayed and driven based on the output display data. An OLED display device, which includes at least one display driver chip and an OLED display panel, characterized in that the display driver chip executes a pixel brightness compensation method of the OLED display panel to convert an input display data into a signal for driving the OLED The display panel displays an output display data of the image; the pixel brightness compensation method of the OLED display panel includes the following steps: Receive an input display data; Determine a red sub-pixel compensation data, a green sub-pixel based on an initial target brightness, an initial red sub-pixel gray scale value, an initial green sub-pixel gray scale value and an initial blue sub-pixel gray scale value compensation data and one blue sub-pixel compensation data; and The red sub-pixel compensation data, the green sub-pixel compensation data and the blue sub-pixel compensation data are respectively combined with the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the initial blue sub-pixel gray scale value. The color sub-pixel grayscale value is subjected to a multiplication operation to obtain a target red sub-pixel grayscale value, a target green sub-pixel grayscale value and a target blue sub-pixel grayscale used to drive a pixel. value. The OLED display device of claim 6, wherein the display driver chip is based on the initial target brightness, the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the initial blue sub-pixel The gray scale value is used to find the red sub-pixel compensation data, the green sub-pixel compensation data and the blue sub-pixel compensation data in a three-dimensional lookup table. The OLED display device of claim 7, wherein the display driver chip is based on the initial target brightness, the initial red sub-pixel gray scale value, the initial green sub-pixel gray scale value and the initial blue sub-pixel The grayscale value is used to perform a data lookup operation and a three-dimensional space interpolation operation in a three-dimensional lookup table, thereby obtaining the red sub-pixel compensation data, the green sub-pixel compensation data and the blue sub-pixel element compensation data. The OLED display device as claimed in claim 8, wherein the OLED display panel includes M×N pixels, and each of the pixels includes a red sub-pixel, a green sub-pixel and a blue sub-pixel, And the three-dimensional lookup table is generated using the following steps: Fixing the panel load rate of the OLED display panel; Record a first pixel brightness when only the red sub-pixel is driven, a second pixel brightness when only the green sub-pixel is driven, and a first pixel brightness when only the blue sub-pixel is driven The sum of the pixel brightness of the third pixel when being driven is the sum of the brightness of a pixel when the red sub-pixel, the green sub-pixel and the blue sub-pixel are driven at the same time. The brightness ratio of one pixel between Change the gray scale values of the red sub-pixel, the green sub-pixel and/or the blue sub-pixel a plurality of times, thereby obtaining a plurality of the pixel brightness ratios; Establishing a correlation data including a plurality of the pixel brightness ratios, a plurality of red sub-pixel grayscale values, a plurality of green sub-pixel grayscale values, and a plurality of blue sub-pixel grayscale values; and An inverse gamma transformation is performed on the correlation data. An information processing device, characterized by having an OLED display device as described in any one of claims 6 to 9.

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