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Image residue avoiding method

A technology of image retention and pixel unit, which is applied in the direction of cathode ray tube indicators, instruments, static indicators, etc., can solve the problems of image retention and other problems, and achieve the effect of avoiding image retention

Inactive Publication Date: 2010-06-16
CHUNGHWA PICTURE TUBES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a method for avoiding image sticking, so as to solve the problem that existing liquid crystal displays are prone to image sticking

Method used

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Embodiment Construction

[0021] figure 1 It is a schematic diagram of the display screen of the liquid crystal display of the present invention. Please refer to figure 1 , the liquid crystal display 100 of the present invention is generally used to display static images and dynamic images. For example, the area 101 of the liquid crystal display 100 of the present invention can present a static picture, while the area 102 can present a dynamic picture. Wherein, the static picture presented in the area 101 may be a trademark of a TV company, a channel name or a program title, and the like. Of course, those with ordinary knowledge in the technical field should know figure 1 The size of the range of the static image presented by the area 101 is only for illustration and is not limited here.

[0022] Practically, the static image can be jointly presented by the corresponding plurality of pixel units 110 . For full-color display, the pixel unit 110 may be a red pixel unit 110R, a green pixel unit 110G ...

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Abstract

The invention discloses a method for avoiding the image-sticking effect, which is suitable for regulating a static picture. The method for avoiding the image-sticking effect of the invention comprisesthe following steps: firstly, a grayscale display rate is calculated; the picture displayed by each pixel unit corresponds to a grayscale display rate; secondly, the difference between the grayscaledisplay rates of two pixel units is calculated; thirdly, whether the difference is more than a critical value is decided; when the difference is more than the critical value, the grayscale display rates of two pixel units are regulated so as to ensure that the difference is less than the critical value.

Description

technical field [0001] The present invention relates to a method for avoiding image sticking, and in particular to a method for avoiding image sticking in a display screen of a liquid crystal display. Background technique [0002] The multimedia technology in today's society is quite developed, mostly benefiting from the progress of semiconductor components and display devices. As far as displays are concerned, liquid crystal displays with superior characteristics such as high image quality, good space utilization efficiency, low power consumption, and no radiation have gradually become the mainstream of the market. [0003] Specifically, liquid crystal displays are often used to display dynamic or static images. It is worth noting that when the liquid crystal display displays a static image for a long time and then displays other images, it is easy to have an image or outline left over from the last displayed image. This is because the liquid crystal molecules in the liqu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G09G3/20G09G5/00G02F1/133
Inventor 李建邦
Owner CHUNGHWA PICTURE TUBES LTD
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