Gray scale and color difference adjusting method and device of display panel and display device

A technology for display panels and adjustment methods, applied to static indicators, image data processing, instruments, etc., which can solve problems such as prone to errors, inability to adjust, and low efficiency

Inactive Publication Date: 2016-10-12
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing methods of adjusting the optical characteristics of the display panel mostly use manual methods, which are inefficient and prone to errors. When the product shipment volume is large, it is impossible to manually adjust each product

Method used

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  • Gray scale and color difference adjusting method and device of display panel and display device
  • Gray scale and color difference adjusting method and device of display panel and display device
  • Gray scale and color difference adjusting method and device of display panel and display device

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Embodiment Construction

[0095] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0096] figure 1 A schematic flowchart of a method for adjusting gray scale and color difference of a display panel according to an embodiment of the present invention is shown. Such as figure 1 As shown, the grayscale color difference adjustment method of the display panel in this embodiment includes:

[0097] S11: Input a test picture data signal to the sub-pixels of the display panel to be adjusted, and the display panel to be adjusted displays a test picture;

[0098] S12: collecting optical parameters of each area of ​​the test picture;

[0099] S13: Comparing the optical parameters of each area of ​​the test picture with the optical parameters of the standard picture;

[0100] S14: Adjust the data signals of the sub-pixels in each of the regions, so that the optical parameters of each of the regions of the test screen and the optical parameters ...

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Abstract

The invention relates to a gray scale and color difference adjusting method and device of a display panel and the display device. The gray scale and color difference adjusting method of the display panel includes the steps that a testing image data signal is input to a sub-pixel of the to-be-adjusted display panel, and the to-be-adjusted display panel displays a testing image; optical parameters of all areas of the testing image are collected; the optical parameters of all areas of the testing image are compared with optical parameters of a standard image; data signals of sub-pixels in the areas are adjusted, so the error range of the optical parameters of the areas of the testing image and the optical parameters of the standard image meets the requirement, wherein the optical parameters include color coordinates and brightness corresponding to the color coordinates. According to the color coordinates, gray scale and color difference of the display panel are automatically reduced, the problems that a manual adjustment method is low in efficiency and mistakes are easily made are avoided, and adjustment efficiency of the display panel is improved.

Description

technical field [0001] The present invention relates to the technical field of optical adjustment, in particular to a method, device and display device for adjusting gray scale and color difference of a display panel. Background technique [0002] The gamma curve reflects the relationship between grayscale and brightness, which is usually non-linear. There are many kinds of gamma curves in the field of liquid crystal displays, and different gamma curves can be adapted to different environments. For example, a gamma curve with a gamma value of 2.2 is more in line with the characteristics of the human eye. If you are in a brighter environment, you can choose a gamma curve with other gamma values. [0003] The liquid crystal display drive circuit includes a gate drive circuit, a source drive circuit and a gamma voltage generation unit, the gate drive circuit generates signals for controlling the opening and closing of the gate lines, the gamma voltage generation unit generates...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/36G09G3/006G09G3/3607G09G2320/0666G09G2320/0673G06T7/11G06T7/90G06T7/001G06T2207/30121
Inventor 安娜
Owner BOE TECH GRP CO LTD
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