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Image sticking eliminating method and liquid crystal display

A liquid crystal display, image retention technology, applied in static indicators, instruments, nonlinear optics, etc., can solve problems such as image retention, achieve the effect of avoiding image retention and improving image display quality

Inactive Publication Date: 2015-04-22
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the actual display driving process, if the adjusted Vcom voltage remains unchanged, the voltage delivered by the scanning lines will still not be symmetrical with Vcom as the median value under the changing gray scale. , will still result in image sticking
[0006] Traditional methods have not really eliminated the problem of image retention, so it is urgent to propose a solution to solve the above problems, which can effectively avoid image retention and improve display quality

Method used

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  • Image sticking eliminating method and liquid crystal display
  • Image sticking eliminating method and liquid crystal display
  • Image sticking eliminating method and liquid crystal display

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Embodiment Construction

[0030] 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.

[0031] like figure 2 As shown, in the display process of TFT-LCD, it is necessary to control the switch of each row of TFT through the scanning line GL, and charge the liquid crystal capacitor Clc in a row-by-row scanning manner, and the charging current is carried out through the data line DL of each column. send. The voltage at both ends of the liquid crystal capacitor Clc is controlled by the display drive system, and the delivered voltage is determined according to the arrangement of the liquid crystal and the gray scale to be displayed.

[0032] like Figure 4 As shown, the voltage values ​​at both ends of the liquid crystal capacitor are different, and electric fields of different sizes will be formed in the liquid crystal capacitor. The liquid crystal mo...

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Abstract

The invention relates to an image sticking eliminating method and a liquid crystal display. The image sticking eliminating method comprises the steps that public electrode voltage corresponding to each setting gray scale is obtained in advance; the current to-be-displayed gray scales are determined, and the corresponding public electrode voltage is output to the liquid crystal display according to the to-be-displayed gray scales, wherein the public electrode voltage corresponding to each setting gray scale is not identical. The image sticking eliminating method and the liquid crystal display can avoid the occurrence of the image sticking phenomenon effectively and improve the image display quality.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a method for eliminating image sticking and a liquid crystal display. Background technique [0002] Liquid Crystal Displays (LCDs) have been widely used. For example, traces of LCDs can be seen in personal computers, LCD TVs, mobile phones or Personal Digital Assistants (PDAs). Liquid crystal displays have been gradually integrated into people's lives, and the huge business opportunities and markets behind them make liquid crystal displays more and more popular. [0003] In the process of liquid crystal display, image sticking is easy to occur, also known as image sticking (Image Sticking), which is a phenomenon in which the same still picture is displayed for a long time, and the previous picture remains after changing the display content. In all TFT-LCD display modes, there is a slight or severe afterimage problem. [0004] Afterimage evaluation generally adopt...

Claims

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Application Information

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IPC IPC(8): G02F1/133G02F1/1362G09G3/36
CPCG02F1/13306G02F1/136286G09G3/3607
Inventor 卢宇程杨翔
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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