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Gray scale compensation method, gray scale compensation device and gray scale compensation system of display panel

A technology of a display panel and a compensation method, applied in the field of grayscale compensation systems and grayscale compensation devices, can solve the problems of low grayscale compensation accuracy and the like

Pending Publication Date: 2021-07-06
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology

[0002] When a display panel (Panel) performs brightness uniformity (Demura) restoration, in order to ensure the optical characteristics of the product center, the center brightness and gamma of the Panel are usually used as target values, such as figure 1 For the central point shown, the gamma curve used is gamma23, and the gamma value corresponding to the gray scale of a binding point is 2.218. The gray scale compensation calculation of the display panel is performed, and the gray scale compensation of other positions is based on the gray scale of the center. The step difference value is used for fitting, but because the actual gamma of each point of the Panel is different, such as figure 1 As shown, the gamma curves used are gamma11-gamma35. Under the same gray scale of the binding point, different gamma curves correspond to different gamma values. Therefore, the gray scale difference is based on the brightness and gamma of the central point. If the value is compensated, the accuracy of single grayscale compensation is too low

Method used

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  • Gray scale compensation method, gray scale compensation device and gray scale compensation system of display panel
  • Gray scale compensation method, gray scale compensation device and gray scale compensation system of display panel
  • Gray scale compensation method, gray scale compensation device and gray scale compensation system of display panel

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Embodiment Construction

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0023] see Figure 1 to Figure 6 ,Such as figure 2 As shown, this embodiment provides a gray scale compensation method for a display panel, which includes the following steps:

[0024] Step S10: Obtain at least one set of image data corresponding to the gray scale of the binding point of the display panel.

[0025] Step S20: According to the image data, divide the display panel into a main display area and at least one display sub-area, and obtain a gamma average value of eac...

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Abstract

The invention discloses a gray scale compensation method, a gray scale compensation device and a gray scale compensation system of a display panel. The gray scale compensation method comprises the steps of obtaining at least one group of image data corresponding to binding point gray scales of a display panel, dividing a display main area and display subareas of the display panel based on the image data, and determining gray scale compensation values of corresponding pixels in the display subareas according to gamma average values of the display subareas, so the single gray scale compensation precision of pixels in the display panel can be improved.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a gray scale compensation method for a display panel, a gray scale compensation device and a gray scale compensation system. Background technique [0002] When a display panel (Panel) performs brightness uniformity (Demura) restoration, in order to ensure the optical characteristics of the center of the product, the center brightness and gamma of the Panel are usually used as target values, such as figure 1 For the central point shown, the gamma curve used is gamma23, and the gamma value corresponding to the gray scale of a binding point is 2.218, and the gray scale compensation calculation of the display panel is performed. The gray scale compensation of other positions is based on the gray scale of the center. Step difference value for fitting, but because the actual gamma of each point of the Panel is different, such as figure 1 As shown, the gamma curves used are ...

Claims

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Application Information

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IPC IPC(8): G09G3/20
CPCG09G3/2007G09G2320/0271G09G2320/0276G09G2320/0233G09G2360/145G09G2320/0693G09G2320/0686G09G2360/16G09G2320/0626G09G2320/0673
Inventor 张裕桦王文礼
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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