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LCD device and its public voltage drive method

A liquid crystal display, common voltage technology, applied in static indicators, instruments, etc., can solve the problem of crosstalk of the display screen, and achieve the effect of high display screen quality and stable common voltage.

Inactive Publication Date: 2008-11-26
INNOCOM TECH SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the problem of crosstalk in the display screen of the liquid crystal display in the prior art, it is necessary to provide a liquid crystal display and its common voltage driving method that can eliminate the crosstalk of the display screen

Method used

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  • LCD device and its public voltage drive method
  • LCD device and its public voltage drive method
  • LCD device and its public voltage drive method

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Experimental program
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Embodiment Construction

[0018] see figure 2 , is a schematic diagram of a preferred embodiment of the liquid crystal display 20 of the present invention. The liquid crystal display 20 includes a liquid crystal display panel 21 , a timing controller 22 , a scan driver 23 , a data driver 24 , a common voltage generator 25 and a common voltage compensator 29 . The scan driver 23 and the data driver 24 are used to drive the LCD panel 21 , and the timing controller 22 is used to control the scan driver 23 and the data driver 24 . The common voltage generator 25 is used to provide the common voltage for the liquid crystal display panel 21 . The common voltage compensator 29 is used to provide a compensated common voltage to the liquid crystal display panel 21 .

[0019] The liquid crystal display panel 21 includes a plurality of parallel scanning lines 231 (G1-Gn), a plurality of parallel data lines 241 (D1-Dm) that are insulated and perpendicular to the scanning lines 231, a first common voltage line 2...

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PUM

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Abstract

The invention relates to a liquid crystal display and a drive method of public voltage of the liquid crystal display. The liquid crystal display comprises a liquid crystal display panel, a public voltage generator and a public voltage compensator. The liquid crystal display panel comprises a public electrode, a first public pressure wire and a second public pressure wire. The public voltage compensator comprises an input end and an output end. The public voltage generator is connected with the public electrode by the first public pressure wire. The public voltage compensator is connected with the public electrode by the second public pressure wire. The public voltage generator is used for providing the liquid crystal display panel with the public voltage. The public voltage compensator is used for providing the liquid crystal display panel with compensated public voltage according to the actual public voltage of the first public pressure wire.

Description

technical field [0001] The invention relates to a liquid crystal display and a common voltage driving method thereof. Background technique [0002] Liquid crystal displays are widely used because of their low radiation, light, thin and small size, and low power consumption. With the maturity and innovation of related technologies, there are more and more types. [0003] see figure 1 , is a schematic diagram of a prior art liquid crystal display. The liquid crystal display 10 includes a liquid crystal display panel 11 , a timing controller 12 , a scan driver 13 , a data driver 14 and a common voltage generator 15 . The scan driver 13 and the data driver 14 are used to drive the LCD panel 11 , and the timing controller 12 is used to control the scan driver 13 and the data driver 14 . The common voltage generator 15 is used to provide the common voltage for the liquid crystal display panel 11 . [0004] The liquid crystal display panel 11 includes a plurality of parallel sc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G09G3/36
CPCG09G3/3655G09G2300/0426
Inventor 陈弘育
Owner INNOCOM TECH SHENZHEN
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