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Mura phenomenon compensation method

A compensation method and phenomenon technology, applied in the direction of instruments, static indicators, etc., can solve the problems of increasing the overall repair time and reducing product production capacity

Active Publication Date: 2016-05-18
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology

[0008] Only grayscales with serious mura conditions need to use multiple mura compensation repairs to achieve the effect that meets the specifications; for grayscales with relatively mild mura conditions, one mura compensation restoration can meet the specifications, if you continue to perform multiple mura compensations Repairing will increase the overall time of repairing, and the product capacity will be greatly reduced

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Embodiment Construction

[0035] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0036] see Figure 3-4 , the present invention provides a kind of Mura phenomenon compensation method, comprises the following steps:

[0037] Step 1, provide an LCD display panel and a camera, set several different gray scales, use the camera to shoot the display screens of these several different gray scales displayed on the LCD display panel, and obtain the LCD according to the collected images. A plurality of Mura compensation data corresponding to the plurality of different gray levels of the display panel.

[0038] Specifically, in the step 1, 3-5 different gray levels are set. preferred, see Figure 4 , in a preferred embodiment of the present invention, in the step 1, three different gray levels are set, namely the first gray level,...

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Abstract

The invention provides a Mura phenomenon compensation method. The Mura phenomenon compensation method comprises the steps of performing Mura compensation on an LCD display panel at a gray scale and performing Mura compensation effect checking on the LCD display panel after Mura compensation at the gray scale from selecting the gray scale from a plurality of different preset gray scales, and if the Mura compensation effect is qualified, stopping Mura compensation on the LCD display panel at the gray scale, and performing Mura compensation at a next gray scale; if the Mura compensation effect is not qualified, re-acquiring the Mura compensation data of the LCD display panel at the gray scale after former Mura compensation and continuously performing Mura compensation and Mura compensation effect checking until the Mura compensation effect of the LCD display panel at the gray scale is qualified, and then performing Mura compensation at a next gray scale; and finally finishing Mura compensation of the LCD display panel at a plurality of different gray scales. Because multiple times of Mura compensation are only performed on the LCD display panel at the gray scales which require multiple times of Mura compensation, the Mura phenomenon compensation method has advantages of shortening restoring time in a plurality of times of Mura compensation, improving product quality and furthermore improving production efficiency.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for compensating the Mura phenomenon. Background technique [0002] With the development of liquid crystal display (LCD) towards lighter, thinner and larger, due to some uncontrollable factors in the actual manufacturing process, there are differences in the physical characteristics of the LCD display panel, resulting in a pixel greater than one Within the range, the phenomenon of uneven brightness when displaying pure grayscale images is called the Mura phenomenon in the industry. [0003] The Mura phenomenon has become a bottleneck restricting the development of LCD. The probability of Mura phenomenon can be reduced by improving the technological level or improving the purity of raw materials. For the completed LCD display panel, its physical characteristics have been finalized. In order to compensate for the Mura phenomenon caused by the defects in the LCD manufact...

Claims

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Application Information

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IPC IPC(8): G09G3/36
CPCG09G3/3607G09G2320/0276
Inventor 张华
Owner SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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