Method and device for removing liquid crystal displayer mura

A liquid crystal display, image input technology, applied in the direction of static indicators, instruments, etc., to achieve the effect of improving comfort, improving display effect, and eliminating mura

Active Publication Date: 2014-03-26
TCL CORPORATION
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Problems solved by technology

[0003] The object of the present invention is to provide a method for eliminating the mura of a liquid crystal display through a brightness correction coefficient matrix, aiming at solving the problem of how to eliminate the mura of a liquid crystal display

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  • Method and device for removing liquid crystal displayer mura
  • Method and device for removing liquid crystal displayer mura

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0020] figure 1 The implementation flow of a method for eliminating the mura of a liquid crystal display provided by an embodiment of the present invention is shown, and the details are as follows:

[0021] Step 101. Obtain the brightness value of each pixel corresponding to the input image.

[0022] Specifically, the brightness value of each pixel point corresponding to the input image is obtained, and the brightness value of each pixel point is recorded as L(i, j), where i, j represent the coordinates of the corresponding point, where 1≤i≤N, 1≤ j≤M, N represents the number of lines scanned in t...

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Abstract

The invention is suitable for the technical field of displayers, and provides a method and device for removing liquid crystal displayer mura. According to the method and device for removing the liquid crystal displayer mura, brightness values of pixel points corresponding to input images are obtained, the brightness values of the pixel points corresponding to the input images are amended according to a brightness amendment coefficient matrix, the amended brightness values of the pixel points corresponding to the input images are obtained, then amended gray-scale values of the pixel points corresponding to the input images are obtained according to the amended brightness values of the pixel points corresponding to the input images, images corresponding to the amended gray-scale values are displayed on a liquid crystal screen, the liquid crystal displayer mura is effectively removed, the displaying effect of the liquid crystal screen is improved, and the viewing comfort senses of users are improved.

Description

technical field [0001] The invention belongs to the technical field of displays, in particular to a method and a device for eliminating the mura of a liquid crystal display. Background technique [0002] LCD screens are currently due to TFT (Thin-Film Technology, thin-film technology technology), uneven distribution of backlight brightness and other reasons. There will always be a certain mura phenomenon, which makes the screen look like a stained plaque when displaying images, especially when displaying a large area of ​​the same grayscale image. In particular, due to cost reasons, LCD TVs currently use more direct-lit LED backlight technology. In the case of direct-lit, lightness and thinness must be taken into account, with fewer LEDs and less diffusion film. Therefore, it is difficult to achieve uniform distribution of backlight, so it will produce serious mura phenomenon on the screen. Contents of the invention [0003] The purpose of the present invention is to pro...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
Inventor 施建华陈永洒
Owner TCL CORPORATION
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