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Liquid crystal display panel its driving method

一种液晶显示板、驱动方法的技术，应用在晶体管、静态指示器、光学等方向，能够解决低响应速度、没有提出AC驱动方法、运动模糊等问题

Inactive Publication Date: 2006-07-05
LG DISPLAY CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A disadvantage of prior art liquid crystal display panels is that motion blur occurs due to the low response speed due to the viscosity and elasticity of liquid crystals
[0010] However, in order to prevent liquid crystal from deteriorating, the three-electrode liquid crystal display panel should use alternating current (AC) to drive the liquid crystal, but no AC driving method has been proposed

Method used

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  • Liquid crystal display panel its driving method
  • Liquid crystal display panel its driving method
  • Liquid crystal display panel its driving method

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Embodiment Construction

[0057] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0058] The following will refer to Figure 2 to Figure 7 Embodiments of the present invention will be described.

[0059] figure 2 is a cross-sectional view showing two liquid crystal cell portions in a three-electrode liquid crystal display panel according to an embodiment of the present invention.

[0060] figure 2 The three-electrode liquid crystal display panel shown in includes a thin film transistor substrate 40 and a color filter substrate 50 bonded together with a liquid crystal 60 therebetween.

[0061] The color filter substrate 50 includes a common electrode 54 formed of a transparent conductive layer over the entire surface of the upper substrate 52 . The common electrode 54 is supplied with a reference voltage V1 which is a standard value for driving liquid crystal cells. The color filter substrate 50 als...

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Abstract

This invention relates to a three electrode liquid crystal display panel that is adaptive for AC-driving liquid crystal cells inclusive of three electrodes, and a driving method thereof. A three electrode liquid crystal display panel according to an embodiment of the present invention includes first and second pixel electrodes disposed on a first substrate with an insulating film therebetween; and a common electrode disposed in a second substrate which is bonded with the first substrate with a liquid crystal therebetween, and wherein the first pixel electrode selectively supplies a maximum voltage and a minimum voltage, the common electrode supplies a medium voltage between the maximum voltage and the minimum voltage as a reference voltage, and the second pixel electrode supplies a positive data voltage and a negative data voltage on the basis of the reference voltage in a range between the maximum voltage and the minimum voltage, thereby AC-driving the liquid crystal.

Description

technical field [0001] The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display panel using three electrodes and a driving method thereof. Background technique [0002] The liquid crystal display device controls light transmittance of liquid crystals having dielectric anisotropy using an electric field, thereby displaying images. The liquid crystal display device includes: a liquid crystal display panel, which displays images through a matrix of liquid crystal cells; and a driving circuit, used to drive the liquid crystal display panel. [0003] Referring to FIG. 1, a related art liquid crystal display panel includes a color filter substrate 10 bonded to a thin film transistor substrate 20 with a liquid crystal 24 therebetween. [0004] The color filter substrate 10 includes a black matrix 4 , a color filter 6 and a common electrode 8 sequentially formed on an upper glass substrate 2 . The black matrix 4 is formed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G09G3/36G02F1/136H01L29/786
CPCG09G2320/0252G09G3/3655G09G3/3614G02F2001/134381G02F1/1368G02F1/134381G02F1/133
Inventor 洪炯基
Owner LG DISPLAY CO LTD
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