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Drive circuit of liquid crystal display and driving method thereof

A technology of liquid crystal display and driving circuit, which is applied to static indicators, instruments, etc., to achieve the effect of reducing complexity

Inactive Publication Date: 2009-06-03
VASTVIEW TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore the main purpose of the present invention is to provide a kind of driving circuit and its driving method of the liquid crystal display that has look-up table component and adjustable gamma (gamma), to solve the problem of above-mentioned known overexciting driving method

Method used

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  • Drive circuit of liquid crystal display and driving method thereof
  • Drive circuit of liquid crystal display and driving method thereof
  • Drive circuit of liquid crystal display and driving method thereof

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Embodiment Construction

[0030] In order to illustrate the purpose of the present invention more clearly, before describing the present invention, a brief description of the operation of the liquid crystal display will be given. Please refer to image 3 , image 3 It is a circuit diagram of a general liquid crystal display. As shown in the figure, the liquid crystal display 30 includes a liquid crystal panel 31 , and the liquid crystal panel 31 includes a plurality of scan lines 32 , a plurality of data lines 34 and a plurality of pixels 36 . Each pixel 36 is connected to a corresponding scan line 32 and a corresponding data line 34, and each pixel 36 includes a switch element 38 and a pixel electrode (pixel electrode) 39, wherein the switch element 38 is connected to the corresponding scan line line 32 and the corresponding data line 34 . The general method of driving the liquid crystal display 30 is to apply a scan voltage to the scan line 32 to turn on the switch element 38 , and then write a da...

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Abstract

The invention discloses a liquid crystal display drive circuit and its method. The method includes that a image data is received from image signal end; then the image data is delayed by one frame period to form a delayed image data; a parameter list is selected from many parameter lists according to a contrast factor; and a image data valve is selected from the selected parameter list according to the image data and the delayed image data at that moment; then a data line voltage is formed according to the image data value, and it is applied in the corresponding data line.

Description

technical field [0001] The invention relates to a driving circuit and a driving method of a liquid crystal display, in particular to a driving circuit and a driving method of a liquid crystal display which has a look-up component and can adjust gamma. Background technique [0002] Generally speaking, liquid crystal displays have the advantages of light weight, low power consumption, and low radiation. Therefore, liquid crystal displays have been widely used in various portable information products on the market, such as notebook computers (notebooks) and personal digital Assistant (personal digital assistant, PDA) and other commodities. In addition, LCD screens and LCD TVs have gradually become popular, replacing traditionally used cathode ray tube (cathode ray tube, CRT) monitors and TVs. But LCDs also have their drawbacks. Due to the limitation of the characteristics of the liquid crystal molecules, when the image data is switched, the liquid crystal molecules must be tw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G02F1/133
Inventor 陈政嵘沈毓仁简良臣
Owner VASTVIEW TECH