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Gray scale compensation method and device for driving TFT and display panel and display device thereof

A compensation method and display panel technology, which can be applied to static indicators, instruments, etc., can solve the problem of low grayscale display being too bright.

Active Publication Date: 2021-02-12
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a gray scale compensation method and device for driving a TFT for the problem of overcompensation when compensating for low gray scales in the traditional K value detection method, resulting in brighter low gray scale displays. display panel, display device

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  • Gray scale compensation method and device for driving TFT and display panel and display device thereof
  • Gray scale compensation method and device for driving TFT and display panel and display device thereof
  • Gray scale compensation method and device for driving TFT and display panel and display device thereof

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[0045] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. A preferred embodiment of the application is shown in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0046] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to and integrally integrated with the other element, or there may be an intervening element at the same time. The terms "mounted", "one end", "the other end" and similar expressions are used herein for the purpose of description only.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commo...

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Abstract

The invention discloses a gray scale compensation method and device of a driving TFT, a display panel and a display device thereof. The method comprises the following steps: obtaining a detection current-voltage ratio of each gray scale of the driving TFT; confirming the maximum value in each detection current-voltage ratio as a first K value; determining the gray scale corresponding to the firstK value as an intermediate gray scale; acquiring a plurality of detection current-to-voltage ratios corresponding to the low gray scales, and performing fitting processing on the detection current-to-voltage ratios corresponding to the low gray scales to obtain a second K value; when the to-be-compensated gray scale of the driving TFT is a low gray scale, performing data compensation on the to-be-compensated gray scale according to the second K value; when the to-be-compensated gray scale of the driving TFT is the high gray scale, data compensation is performed on the to-be-compensated gray scale according to the first K value, so that low gray scale K value compensation of the driving TFT is realized, overcompensation of the low gray scale K value compensation stage of the driving TFT isavoided, and uniform display of the display equipment in the low gray scale and the high gray scale is realized.

Description

technical field [0001] The present application relates to the field of display technology, and more specifically, to a grayscale compensation method and device for driving TFTs, a display panel thereof, and a display device. Background technique [0002] With the continuous development and progress of display technologies such as LED displays, more and more display products have been brought. Since the drivers used in the above displays are all used in the saturation region of the driving TFT, and there are device differences, it is necessary to compensate the K value of the driving TFT (driving TFT). Experiments have shown that when compensating for low grayscales with the traditional K value detection method, overcompensation will occur, resulting in brighter low grayscale displays. [0003] During the implementation process, the inventors found at least the following problems in the traditional technology: the traditional K value detection method, when compensating for l...

Claims

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Application Information

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IPC IPC(8): G09G3/32G09G3/3208
CPCG09G3/32G09G3/3208G09G2320/0276
Inventor 王增梁鹏飞
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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