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Method and system for reducing image ghost

A technology of afterimage and image, which is applied in the direction of image communication, TV system components, color TV components, etc., to avoid inconvenience, avoid image afterimage, and reduce image afterimage

Active Publication Date: 2009-03-11
ACER INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, once the screen saver starts, the user will no longer be able to continue to use the audio-visual device via the liquid crystal display, such as a computer or a TV host or an audio-video player.

Method used

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  • Method and system for reducing image ghost
  • Method and system for reducing image ghost

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Embodiment Construction

[0044] Each picture frame contains many pixels, and each pixel is composed of three primary colors red, green and blue (R, G, B) lights with different color values. For example, if a certain pixel is composed of color values ​​(0, 0, 0), then this pixel is the darkest, and a pixel composed of color values ​​(0, 0, 0) can be defined as Zero grayscale. Similarly, if a certain pixel is composed of color values ​​(255, 255, 255), then this pixel is the brightest, and the pixel composed of color values ​​(255, 255, 255) can be defined as 255 grayscale. Therefore, each picture frame can also be regarded as composed of a plurality of gray scales, and each gray scale can range from zero gray scale to 255 gray scale. In addition, for the convenience of describing the present invention, the grayscale with a smaller number can be regarded as a low grayscale (low brightness), and the grayscale with a larger number can be regarded as a high grayscale (high brightness).

[0045] Please r...

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Abstract

The invention relates to a method for reducing image remnant trace which is applied between an LCD (Liquid Crystal Display) system and a video signal source. The method comprises the following steps: continuously receiving a first number of picture frames sent by the video signal source; correspondingly counting a plurality of gray scale statistical characteristics according to the color values of a plurality of pixels in the continuously received picture frames; when the gray scale statistical characteristics accord with a preset condition, inserting a preset picture frame in a first percentage in a plurality of picture frames which are sequentially received and outputting the picture frames. By inserting a picture frame on a middle gray scale, the invention inhibits a high electric field generated by the originally normal picture frames so as to avoid generating the image remnant trace.

Description

technical field [0001] The present invention relates to a method and system for reducing image sticking, in particular to a method and system for reducing image sticking generated from a liquid crystal display (Liquid Crystal Display, LCD). Background technique [0002] Please refer to FIG. 1, which shows a schematic structural diagram of a liquid crystal display system, which mainly includes an analog-to-digital converter (Analog Digital Converter, ADC) 102, a scaling processor (Scaler) 104, a timing controller (Timing Controller) , TCON) 122, a driving circuit 124, and an LCD panel 126. Wherein, an analog-to-digital converter (ADC) 102 and a scaling processor (Scaler) 104 belong to an image processing unit 10 . The timing controller (TCON) 122 , the driving circuit 124 , and the LCD panel 126 belong to an LCD panel module 12 . The main function of the analog-to-digital converter (ADC) 102 is to convert a received analog frame (Frame) into a digital frame, wherein the ana...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36H04N5/14
Inventor 陈志强
Owner ACER INC
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