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Method and device for gray scale compensation of image data

A technology of image data and compensation method, applied in the direction of instruments, static indicators, etc., can solve the problem of uneven panel flicker, achieve the effect of optimizing flicker and eliminating flicker

Active Publication Date: 2015-04-08
XIAMEN TIANMA MICRO ELECTRONICS +1
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  • Description
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Problems solved by technology

The design of multiple common electrodes can improve the flickering of the entire panel to some extent, but due to the limitation of the wiring of the common electrodes and the number of common electrodes, there is still the problem of uneven flickering of the entire panel

Method used

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  • Method and device for gray scale compensation of image data
  • Method and device for gray scale compensation of image data
  • Method and device for gray scale compensation of image data

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] In the embodiment of the present invention, a compensation data table may be preconfigured, and the compensation data table is used to compensate the image data to be displayed.

[0036] The compensation value stored in the compensation data table is related to the display sub-area of ​​the display panel, wherein: the display sub-area of ​​the display panel refers to the subdivision of the display area on the display panel accordi...

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Abstract

The invention discloses a method and a device for gray scale compensation of image data. The method comprises the steps: receiving to-be-displayed image data, wherein the image data comprises gray scales of N pixels of a frame of image and N is greater than 1; determining a display sub-zone subordinative to the pixel with respect to each pixel in the N pixels; according to the display sub-zone subordinative to the pixel and the gray scales of the image pixels, inquiring a preset compensation data sheet and determining the corresponding compensation value of the pixel; compensating the gray scale of the pixel according to the determined compensation value of the pixel. In the method, firstly, the compensation data sheet is established by data measurement; the gray scale data actually displayed by a display screen is compensated and corrected according to the established compensation data sheet, so that the flickering optimization of any display zone in a whole display panel is realized and the flickering generated in the whole display panel is eliminated.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method and device for grayscale compensation of image data. Background technique [0002] Liquid Crystal Displays (LCDs) are currently widely used due to their advantages of thinness, lightness, small size, low radiation and low power consumption. [0003] The liquid crystal display controls the light transmittance of the liquid crystal unit according to the data signal to display images. In order to prevent the polarization of the liquid crystal from affecting the display effect, the voltage applied to both ends of the liquid crystal changes positive and negative alternately. Due to the difference between positive and negative voltages, the brightness of the panel under positive and negative voltages is inconsistent, thus causing flickering problems. [0004] In the prior art, the design of multiple common electrodes is usually adopted to eliminate the flicker of the display...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
Inventor 苏凌志
Owner XIAMEN TIANMA MICRO ELECTRONICS
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