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Drive circuit and grey insertion method for liquid crystal display

A liquid crystal display and drive circuit technology, which is applied in the field of ash insertion technology, can solve problems such as poor brightness, and achieve the effects of shortening charging time, improving quality, and extending charging time

Inactive Publication Date: 2012-09-26
华映视讯(吴江)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] From another point of view, the present invention provides a driving circuit that can analyze the current frame and adjust the charging time of the gray interpolation screen accordingly, which can not only improve the problem of motion blur, but also improve the problem of poor brightness

Method used

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  • Drive circuit and grey insertion method for liquid crystal display
  • Drive circuit and grey insertion method for liquid crystal display
  • Drive circuit and grey insertion method for liquid crystal display

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Embodiment Construction

[0029] Although the known gray interpolation technology can improve the motion blur of the dynamic picture, it will greatly reduce the brightness of the dynamic picture and the static picture. In addition, it is known that when the gray insertion function is turned on or off, the brightness of the display screen varies greatly, which may easily cause discomfort to human eyes.

[0030] In view of this, an embodiment of the present invention provides a method for inserting dust into an LCD. This method can analyze the state of the current frame as a dynamic or static frame. After the analysis is completed, if the current frame is a dynamic frame, the charging time of the gray interpolation screen can be gradually extended, thereby improving the situation of motion blur. Conversely, if the current frame is a static frame, the charging time of the gray interpolation screen can be gradually shortened, thereby improving the poor brightness of the display screen. In addition, the a...

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Abstract

The invention discloses a drive circuit and a grey insertion method for a liquid crystal display. The grey insertion method comprises the following steps of: analyzing that a current frame belongs to a dynamic frame or a static frame; prolonging the charging time of a grey insertion picture when the current frame belongs to the dynamic frame; and shortening the charging time of the grey insertionpicture when the current frame belongs to the static frame. Therefore, the method can overcome the defect of fuzzy dynamic images of the liquid crystal display, and improve the quality of the displayed picture.

Description

technical field [0001] The present invention relates to a gray-inserting technology of a liquid crystal display, and in particular to a gray-inserting technology which can adaptively adjust the charging time of a gray-inserting screen to adjust different levels of gray-inserting degrees. Background technique [0002] The Liquid Crystal Display (LCD) adopts a hold-type display mode, so when the LCD displays dynamic images, the image will be blurred. Generally speaking, it is known that gray insertion technology is used to reduce motion blur. The following briefly describes how to drive the LCD panel. [0003] The driving signal of the LCD panel is mainly divided into two parts, one is the data signal provided by the source driver (Source Driver), and the other is the scanning signal provided by the gate driver (Gate Driver). The data signal mainly provides a voltage signal corresponding to the gray scale of each pixel. The scan signal is used to control the switch signal i...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G09G3/20
Inventor 林享昙颜士杰
Owner 华映视讯(吴江)有限公司