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Method and device for mura compensation of display panel

A technology of display panel and compensation method, applied in static indicators, instruments, etc., can solve the problems of poor compensation effect, serious aliasing, and uneven image transition, and achieve the effect of smooth image transition, reducing aliasing, and improving picture quality.

Active Publication Date: 2018-09-14
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology

[0005] In order to save storage space and reduce production costs, in the prior art, the compensation data of all pixels is usually not saved, but the display panel is divided into multiple regions for compression, and the compensation data of one pixel is selected for storage in each region, while The compensation data of other pixels is obtained by performing bilinear interpolation on the compensation data of the saved pixels. The effect can no longer meet the design needs, the compensation effect is very poor, the image transition is not smooth, and the jaggedness is serious

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  • Method and device for mura compensation of display panel
  • Method and device for mura compensation of display panel
  • Method and device for mura compensation of display panel

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Embodiment Construction

[0045] 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.

[0046] see figure 2 , the present invention provides a mura compensation method for a display panel, comprising the steps of:

[0047] Step S1, please refer to figure 1 , dividing the display panel into a plurality of compensation areas 100, each compensation area 100 includes a plurality of pixels 101 arranged in an array;

[0048] Step S2, selecting a pixel 101 in each compensation area 100 as a compensation pixel, measuring and storing the compensation data corresponding to each compensation pixel.

[0049] Specifically, in a preferred embodiment of the present invention, a pixel 101 in the upper left corner of each compensation area 100 is selected as the compensation pixel, as in figure 1 Pixel A00, Pixel A10, Pixel A20, Pixel A30, Pixe...

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Abstract

The present invention provides a method and a device for mura compensation of a display panel. The method comprises the steps of: taking one pixel selected in each compensation area as one compensation pixel to measure and store compensation data corresponding to each compensation pixel, calculating the compensation data of other pixels except the compensation pixels in each compensation area according to the compensation data corresponding to each compensation pixel and a preset bicubic interpolation algorithm, and employing the bicubic interpolation algorithm to calculate the compensation data of other pixels except the compensation pixels in each compensation area. Compared to traditional bilinear interpolation, the image transition is smoother, sawtooth is reduced, the mura compensation effect is improved, and the image quality is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a mura compensation method and device for a display panel. Background technique [0002] A Liquid Crystal Display (LCD) has many advantages such as a thin body, power saving, and no radiation, and has been widely used. Such as: LCD TV, mobile phone, personal digital assistant (PDA), digital camera, computer screen or notebook computer screen, etc., occupy a dominant position in the field of flat panel display. [0003] Most of the liquid crystal displays currently on the market are backlight liquid crystal displays, which include a liquid crystal display panel and a backlight module. The working principle of the liquid crystal display panel is to pour liquid crystal molecules between the thin film transistor array substrate (ThinFilm Transistor Array Substrate, TFT Array Substrate) and the color filter substrate (ColorFilter, CF), and apply a driving voltage on the two substrat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/36G09G3/3607G09G2320/0233
Inventor 肖光星
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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