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Gray-scale value compensation method and system for display panel, and display panel

A technology of a display panel and a compensation method, which is applied to static indicators, instruments, etc., can solve the problem of uneven brightness and darkness of the display panel, and achieve the effects of improving the inaccuracy of compensation data, improving the accuracy, and improving the uniformity of brightness and darkness.

Active Publication Date: 2017-11-10
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Application Information

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Problems solved by technology

[0004] The technical problem mainly solved by the present invention is to provide a gray scale value compensation method, system and display panel of the display panel, which can solve the problem of uneven brightness and darkness of the existing display panel

Method used

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  • Gray-scale value compensation method and system for display panel, and display panel
  • Gray-scale value compensation method and system for display panel, and display panel
  • Gray-scale value compensation method and system for display panel, and display panel

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Embodiment Construction

[0020] refer to figure 1 , an embodiment of the grayscale value compensation method of the display panel of the present invention includes the following steps:

[0021] S11: Obtain an image of the display panel in at least one grayscale frame, and obtain grayscale compensation values ​​of a plurality of pixels on the display panel and position data corresponding to the plurality of pixels according to the image.

[0022] Optionally, gray scale compensation values ​​of all pixels of the display panel in at least one frame and position data corresponding to all pixels are obtained.

[0023] In this embodiment, the image of the display panel in at least one grayscale frame is transmitted to a computing terminal such as a computer through wired transmission, wireless transmission, or storage device or storage medium, and the computing terminal runs corresponding data analysis Software or programs such as Matlab perform analysis and calculation, so as to obtain the gray scale comp...

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Abstract

The invention discloses a gray-scale value compensation method and system for a display panel, and the display panel. The method comprises the steps: obtaining an image of at least one gray scale of the display panel, and obtaining the gray-scale value compensation values of a plurality of pixels on the display panel and the corresponding position data of the pixels; judging whether the whether there is one or more pixel groups which consist of pixels with the same gray-scale compensation value, or whether there is one or more pixel groups which consist of pixels with the same gray-scale compensation value and the pixels with the gray-scale compensation value difference with the pixels with the same gray-scale compensation value being within a first threshold range: recording at least one gray-scale compensation value of each pixel group and the corresponding position data of each pixel in the pixel groups if there is one or more pixel groups above, so as to achieve the compensation for the display panel. The method can effectively improve the brightness uniformity of the display panel in the above mode.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a grayscale value compensation method and system of a display panel and a display panel. Background technique [0002] Existing display panels, such as LCD panels, show a one-to-one relationship between brightness and grayscale values ​​​​under pure white screens (called gamma curves). For example, 8bit LCD panels have the brightest brightness under 255 grayscale screens, and 0 The lower brightness is the darkest; due to factors such as the offset in the LCD panel manufacturing process and the characteristic differences between liquid crystal molecules, the brightness of each area of ​​the LCD panel will be different under a fixed grayscale screen, forming a mura phenomenon, that is, bright, Dark uneven. [0003] According to the one-to-one correspondence between the brightness and the gray scale value, the uniformity of the overall brightness and darkness of the LCD panel can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3607G09G2320/0233
Inventor 张华张裕桦陈明暐李文东
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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