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Liquid crystal display and driving method thereof

A liquid crystal display and liquid crystal display panel technology, applied in static indicators, instruments, nonlinear optics, etc., can solve DC image retention and other problems

Active Publication Date: 2009-12-16
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, DC image retention occurs

Method used

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

Examples

Experimental program
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Embodiment Construction

[0055] refer to Figures 10 to 24 , preferred embodiments of the present disclosure will be described.

[0056] refer to Figure 10 , The liquid crystal display device according to the first embodiment of the present disclosure includes a liquid crystal display panel 10 , a timing controller 11 , a data driving circuit 12 , and a gate driving circuit 13 .

[0057] The liquid crystal display panel 10 includes two glass substrates bonded to each other and a liquid crystal layer between the substrates. On the lower glass substrate of the liquid crystal display panel 10 , data lines ( D1 to Dm ) and gate lines ( G1 to Gn ) are disposed to cross each other. Liquid crystal cells (Clc) are arranged in an m×n matrix pattern on the liquid crystal display panel 10 having a cross structure of data lines (D1 to Dm) and gate lines (G1 to Gn).

[0058] Formed on the lower glass substrate of the liquid crystal display panel 10 are data lines (D1 to Dm), gate lines (G1 to Gn), TFTs located...

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Abstract

The invention provides a liquid crystal display and driving method thereof. The exemplary embodiment relates to a liquid crystal display device and a driving method thereof for reducing heat and electric consumption power of the data driving circuit. The exemplary embodiment includes: a liquid crystal display panel including a plurality of data lines crossing a plurality of gate lines and liquid crystal cells arranged in a matrix e; a timing controller generating a polarity control signal, deciding if a predetermined weak pattern data is input, and shifting a phase of the polarity control signal in a next frame period following a frame showing the weak pattern data when the weak pattern data is input; a data driving circuit reversing the polarity of the data voltage in response to the polarity control signal and supplying to the data lines; and a gate driving circuit supplying a gate pulse to the gate lines sequentially.

Description

technical field [0001] The present exemplary embodiment relates to a liquid crystal display device (or "LCD device"). In particular, the present exemplary embodiment relates to a liquid crystal display device and a driving method thereof for reducing heat generation and power consumption of a data driving circuit. Background technique [0002] This application claims priority from Korean Patent Application No. 10-2008-0055419 filed June 12, 2008, the entire contents of which are hereby incorporated by reference as if fully set forth herein. [0003] A liquid crystal display device represents a video image by controlling light transmittance of a liquid crystal cell according to an input video signal. Such as figure 1 As shown, the active matrix type liquid crystal display device actively controls video data by switching the voltage of the video data supplied to the liquid crystal display cells (Clc) by using thin film transistors (TFTs) provided to the respective liquid cry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G2320/0613G09G2360/16G09G3/3688G09G2310/027G09G2330/021G09G2320/0233G09G2320/0219G09G2330/023G09G3/3614G09G3/3648G09G2310/0248G09G3/36G09G3/20G02F1/133
Inventor 金镇成张修赫
Owner LG DISPLAY CO LTD
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