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Gray scale voltage compensation method and display device

A grayscale voltage and display device technology, applied in the field of grayscale voltage compensation methods and display devices, can solve problems such as color distortion, and achieve the effect of solving color distortion

Inactive Publication Date: 2014-09-24
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a grayscale voltage compensation method to solve the technical problem of color distortion in the prior art

Method used

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  • Gray scale voltage compensation method and display device
  • Gray scale voltage compensation method and display device

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Embodiment 1

[0046] An embodiment of the present invention provides a grayscale voltage compensation method for solving the technical problem of color distortion during the display process of a liquid crystal display. The grayscale voltage compensation method includes:

[0047] S1: Obtain the target grayscale voltage to be output by the target sub-pixel.

[0048] S2: Obtain the compensation voltage of the target sub-pixel according to a preset condition.

[0049] In this embodiment, the preset condition in step S2 is the difference between the target gray-scale voltage and the previous gray-scale voltage. That is, in step S2: according to the target gray scale voltage and the previous gray scale voltage, the compensation voltage of the target sub-pixel is obtained. Wherein, the previous gray-scale voltage is the actual gray-scale voltage output by the data line corresponding to the target sub-pixel in the previous scanning period, that is, the gray-scale voltage of the previous sub-pixel...

Embodiment 2

[0068] This embodiment provides a grayscale voltage compensation method, which is basically the same as the first embodiment, the difference being that: in this embodiment, the preset condition in step S2 also includes the position of the target sub-pixel.

[0069] Such as figure 2 As shown, because the data integrated circuit (IC) 1 for outputting data signals is usually arranged on the upper side of the liquid crystal panel 2, the closer to the sub-pixel below the liquid crystal panel 2, the farther the distance from the data IC1 is, then The larger the impedance between the sub-pixel and the data IC1, the loss of the gray-scale voltage output from the data IC1 to the sub-pixel, and the target gray-scale voltage cannot be reached.

[0070] Especially in the mode in which three sub-pixels located in three rows and one column form one pixel (3G1D for short), compared to the mode in which three sub-pixels located in one row and three columns form one pixel (1G3D for short), th...

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Abstract

The invention discloses a gray scale voltage compensation method and a display device, belongs to the technical field of display, and provides a solution for the technical problem of color distortion in the prior art. The gray scale voltage compensation method comprises the following steps: Step 1, a target gray scale voltage which is to be output by a target sub pixel is acquired; Step 2, a compensation voltage of the target sub pixel is acquired according to a preset condition; and Step 3, the target gray scale voltage and the compensation voltage are superposed into an actual gray scale voltage, and the actual gray scale voltage is output to the target sub pixel. The gray scale voltage compensation method can be used in display devices like liquid crystal display televisions, liquid crystal displays, mobile phones and tablet computers.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a grayscale voltage compensation method and a display device. Background technique [0002] With the development of display technology, liquid crystal displays have become the most common flat panel display devices. In a liquid crystal display, each pixel is controlled by grid lines and data lines criss-crossing on the substrate to realize image display. [0003] During the display process of the liquid crystal display, each scan line (gate line) is turned on sequentially, and within the turn-on time of one scan line (in one scan cycle), each data line inputs the gray scale to the pixel electrode of the row of sub-pixels. Voltage. In the next scanning period, gray scale voltages are input to the pixel electrodes of the next row of sub-pixels from each data line. [0004] For one of the data lines, the data line needs to input the corresponding grayscale voltage to the...

Claims

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Application Information

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IPC IPC(8): G09G3/36
CPCG02F1/133G09G3/36
Inventor 孙磊谭小平秦杰辉
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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