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Liquid crystal display and display method thereof

A liquid crystal display, display panel technology, applied in static indicators, instruments, etc., can solve problems such as common electrode voltage attenuation

Inactive Publication Date: 2009-05-20
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a liquid crystal display and display method thereof, to solve the problem caused by the attenuation of the common electrode voltage

Method used

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  • Liquid crystal display and display method thereof
  • Liquid crystal display and display method thereof
  • Liquid crystal display and display method thereof

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Embodiment Construction

[0027] Please refer to figure 2 , which shows a flow chart of a display method of a liquid crystal display according to a preferred embodiment of the present invention. First, enter step 602, measure the voltage difference between the two ends of the common electrode. Next, enter step 604, and obtain distribution parameters according to the voltage difference. Finally, enter step 606 to drive the display panel according to the distribution parameters. Furthermore, the driving circuit of the liquid crystal display adjusts the gray scale value according to the distribution parameters and drives the liquid crystal display panel of the liquid crystal display accordingly. Alternatively, when the driving circuit has multiple driving chips, each driving chip can adjust the grayscale value according to the distribution parameters to compensate for the attenuation of the common electrode voltage, because each driving chip corresponds to a group of gamma voltages. Therefore, without ...

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Abstract

It is a LCD device and its display method, wherein, the LCD device has a display panel, adjusting circuit and driving circuit and the display panel has a common electrode. The adjusting circuit is connected electronically with the common electrode and outputs distribution parameters according to the voltage distribution of the common electrode. The driving circuit receives the distribution parameters to drive the display panel. The adjusting circuit comprises voltage comparer and compensation circuit, wherein the voltage comparer is to measure the voltage difference between both ends of the common electrode and the compensation circuit is to get the distribution parameters according to voltage difference.

Description

technical field [0001] The invention relates to a liquid crystal display and a display method thereof, in particular to a liquid crystal display and a display method thereof for compensating the voltage offset of a common electrode. Background technique [0002] A general liquid crystal panel has a common electrode, a pixel electrode and a liquid crystal layer between the common electrode and the pixel electrode. By applying the common electrode voltage to the common electrode and the pixel voltage to the pixel electrode, the light transmittance of the liquid crystal layer can be changed by using the voltage difference between the common electrode and the pixel electrode. [0003] The light transmittance of the liquid crystal layer is related to the magnitude of the voltage difference between the common electrode and the pixel electrode, but has nothing to do with the polarity of the voltage difference. If the voltage of the same polarity is continuously applied to the liqu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/133G09G3/36
Inventor 游辉隆
Owner AU OPTRONICS CORP