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Liquid crystal display device and driving method thereof

A technology of liquid crystal display devices and liquid crystal panels, which is applied to static indicators, instruments, etc., can solve problems such as blurred pictures, achieve the effects of small voltage changes, fast charging, and eliminate blurred pictures

Inactive Publication Date: 2010-03-03
INNOCOM TECH SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of blurred picture in the prior art liquid crystal display device, it is necessary to provide a liquid crystal display device capable of eliminating blurred picture

Method used

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  • Liquid crystal display device and driving method thereof
  • Liquid crystal display device and driving method thereof
  • Liquid crystal display device and driving method thereof

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Embodiment Construction

[0021] see image 3 , which is a schematic circuit block diagram of the first embodiment of the liquid crystal display device of the present invention. The liquid crystal display device 20 includes a liquid crystal panel 21 , a scanning driving circuit 22 , a data driving circuit 23 and a gray interpolation data generating circuit 26 .

[0022] The liquid crystal panel 21 includes a plurality of scan lines 211 and a plurality of data lines 212 , and the plurality of scan lines 211 and the plurality of data lines 212 define a plurality of pixels 214 . Each pixel includes a thin film transistor 213 and a pixel electrode 215 , the gate of the thin film transistor 213 is connected to the scan line 211 , the source is connected to the data line 212 , and the drain is connected to the pixel electrode 215 . The pixel electrode 215, a common electrode (not shown), and a liquid crystal layer (not shown) sandwiched between the two electrodes form a liquid crystal capacitor. The common...

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Abstract

The invention provides a liquid crystal display device, which comprises a liquid crystal panel and a data driver, wherein the data driver drives the liquid crystal panel to perform display. The liquidcrystal display device further comprises plug-in gray data generating circuit which outputs a plug-in gray data voltage to a data driving circuit. Each frame of the liquid crystal display device comprises a first subframe and a second subframe. The data driving circuit outputs an image data voltage at the first subframe, outputs the plug-in gray data voltage at the second subframe and drives theliquid crystal panel, and the plug-in gray data voltage of the current frame has the same polarity as that of the image data voltage of the next frame. The liquid crystal display device can eliminatethe phenomenon of blurred images during reverse driving. The invention simultaneously provides a driving method of the liquid crystal display device.

Description

technical field [0001] The invention relates to a liquid crystal display device and a driving method thereof. Background technique [0002] Currently, liquid crystal display devices are widely used in desktop computers, personal digital assistants (PDAs), mobile phones, televisions, and various office automation and audio-visual equipment. The principle of the liquid crystal display device is to apply an electric field on both sides of the liquid crystal layer to deflect the liquid crystal molecules, and then cooperate with the polarizer to control the intensity of the transmitted light to realize the screen display. In order to prevent the liquid crystal molecules from being polarized under the electric field in the same direction for a long time and affect the response speed and deflection angle of the liquid crystal molecules, the driving method of applying positive and negative alternating electric fields to the liquid crystal layer is generally adopted, that is, the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
Inventor 李国锋陈景丰陈思孝
Owner INNOCOM TECH SHENZHEN
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