Optical compensation bending mode liquid crystal display pixel and its drive method

A liquid crystal display and pixel technology, applied in optics, nonlinear optics, static indicators, etc., can solve the problem of sacrificing liquid crystal penetration, and achieve the effect of increasing the working voltage range and improving light penetration

Inactive Publication Date: 2008-11-19
CHUNGHWA PICTURE TUBES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the above method can prevent abnormal screens from appearing, it also sacrifices the penetration of liquid crystals in white screens.

Method used

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  • Optical compensation bending mode liquid crystal display pixel and its drive method
  • Optical compensation bending mode liquid crystal display pixel and its drive method
  • Optical compensation bending mode liquid crystal display pixel and its drive method

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Embodiment Construction

[0037] The light transmittance of OCB liquid crystal depends on the electric field applied to the liquid crystal. When the electric field applied to the liquid crystal changes before the liquid crystal starts to react, the liquid crystal is affected by the viscosity coefficient and elastic coefficient of its own material, and its alignment direction will be affected by the change of the electric field. In other words, the alignment of the liquid crystal is determined by the average value of the moment of the electric field applied to the liquid crystal per unit time, and the above moment is proportional to the square of the electric field, because the light transmittance is related to the arrangement of the liquid crystal, so The light transmittance is related to the root mean square value of the driving voltage. Its formula is as follows:

[0038] V RMS = { ∫ 0 ...

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Abstract

The invention discloses a pixel, comprising a transistor, a liquid crystal capacitor, a storage capacitor and a coupling capacitor. The first end of the transistor is coupled to a data line; the liquid crystal capacitor and the storage capacitor are coupled between the second end of the transistor and a common voltage; the coupling capacitor is coupled between the second end of the transistor and a selection line. When the data line inputs a drive voltage into the liquid crystal capacitor and the storage capacitor, the selection line enables a pulse signal to be coupled to the liquid crystal capacitor through the coupling capacitor. The pulse signal can enhance the liquid crystal drive capacity of an electric field, so that even if the minimum cross-pressure of the liquid crystal is insufficient, the liquid crystal can remain at bending state and can normally display the image.

Description

technical field [0001] The present invention relates to an Optically Compensated Bend Mode Liquid Crystal Display (OCB LCD), and in particular to a pixel of an Optically Compensated Bend Mode Liquid Crystal Display and a driving method thereof. Background technique [0002] In order to match the modern life style, the volume of video or image devices is becoming thinner and lighter. Although the traditional cathode ray display (CRT) still has its advantages, due to the structure of the internal electronic cavity, the display is bulky and takes up space, and there are still problems such as radiation damage to the eyes when displaying. Therefore, the flat panel display (Flat Panel Display), such as liquid crystal display (LCD), organic light-emitting display (OLED) or plasma display (Plasma Display Panel, PDP), developed in conjunction with optoelectronic technology and semiconductor manufacturing technology, has gradually become a display The mainstream of the product. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1362G02F1/133G09G3/36
Inventor 简耀黉王智杰陈司芬郑戎杰陈丽珊
Owner CHUNGHWA PICTURE TUBES LTD
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