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Liquid crystal display and drive method thereof

A technology of liquid crystal display and driving method, which is applied in the direction of static indicators, instruments, nonlinear optics, etc., can solve the problems of poor display effect and poor display effect of liquid crystal display, and achieve the effect of improving the disordered display screen

Inactive Publication Date: 2009-10-28
INNOCOM TECH SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem that the display effect of the liquid crystal display in the prior art is poor when the temperature is lowered, it is necessary to provide a liquid crystal display with a better display effect when the temperature is lowered.
[0006] In order to solve the problem that the display effect of the liquid crystal display in the prior art is poor when the temperature is lowered, it is necessary to provide a driving method for a liquid crystal display with a better display effect when the temperature is lowered

Method used

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

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Embodiment Construction

[0014] see figure 1 , is a schematic circuit block diagram of a preferred embodiment of the liquid crystal display of the present invention. The liquid crystal display 1 includes a liquid crystal display panel 10 , a common voltage circuit 20 , a data driving circuit 30 , a controller 40 , a gamma correction circuit 50 and a temperature sensing circuit 60 .

[0015] The temperature sensing circuit 60 is electrically connected to the controller 40 for sensing the ambient temperature and outputting a corresponding temperature signal to the controller 40, which includes a temperature sensing circuit 601, an analog / A digital conversion circuit 603 and an encoder 605 .

[0016] The controller 40 is electrically connected to the common voltage circuit 20 and the gamma correction circuit 50, which receives external image data and the temperature signal, and outputs a common voltage control signal to the common voltage circuit 20 according to the temperature signal, and also outputs...

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Abstract

The invention relates to a liquid crystal display and a drive method thereof. The liquid crystal display comprises a common voltage circuit, a data drive circuit and a liquid crystal display panel, wherein the common voltage circuit is used for outputting a common voltage signal to the liquid crystal display panel, and the data drive circuit is used for outputting a plurality of grey-scale voltage signals to the liquid crystal panel, wherein when the temperature is lowered, the common voltage circuit increases the amplitude of the common voltage signal. The liquid crystal display has better display effect when the ambient temperature is reduced.

Description

technical field [0001] The invention relates to a liquid crystal display and a driving method thereof. Background technique [0002] Liquid crystal displays have been widely used in electronic devices such as TVs, laptops, mobile phones, and personal digital assistants due to their small size, light weight, thin thickness, low power consumption, no flickering, and low radiation. [0003] A liquid crystal display generally includes a liquid crystal display panel and a backlight module for providing planar light to the liquid crystal display panel. The liquid crystal display panel generally includes a common electrode, a pixel electrode, and a plurality of liquid crystal molecules that are driven and twisted by the common electrode and the pixel electrode. When the voltage applied between the common electrode and the pixel electrode changes, the twist angle of the liquid crystal molecules is different, so that the light transmission rate of the liquid crystal display panel is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G02F1/1362G02F1/133
Inventor 周伟冯沙
Owner INNOCOM TECH SHENZHEN
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