Liquid crystal light attenuation device

A light attenuation and liquid crystal technology, applied in optics, nonlinear optics, instruments, etc., can solve problems such as difficulties, affecting the contrast of light attenuation devices, and difficult to change directions
CN101661185BActive Publication Date: 2011-04-13KUSN INFOVISION OPTOELECTRONICS
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
KUSN INFOVISION OPTOELECTRONICS
Publication Date
2011-04-13

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Abstract

The invention provides a liquid crystal light attenuation device. The light attenuation device comprises a first substrate and a second substrate which are arranged face to face, a liquid crystal layer sealed between the first substrate and the second substrate, a first reflecting layer arranged on one side of the first substrate toward the liquid crystal layer, a second reflecting layer arrangedon one side of the second substrate toward the liquid crystal layer, first common electrodes and first control electrodes which are arranged on one side of the first reflecting layer toward the liquid crystal layer and second common electrodes and second control electrodes which are arranged on one side of the second reflecting layer toward the liquid crystal layer, wherein the liquid crystal layer has the property that under an electric field, the isotropic refractivity can be converted to the anisotropic refractivity, the first common electrodes and first control electrodes are arranged alternately, the second common electrodes and second control electrodes are arranged alternately, the second control electrodes are opposite to the first control electrodes, and the second common electrodes are opposite to the first common electrodes. The liquid crystal light attenuation device can increase the response speed.
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Description

Technical field

[0001] The present invention relates to the field of liquid crystal technology, in particular to a liquid crystal light attenuation device. Background technique

[0002] In recent years, the rapid development of liquid crystal technology has promoted its wider application in the fields of flat panel displays, light attenuation devices, and variable wavelength filters. At present, the most commonly used liquid crystal light attenuation device uses twisted nematic (TN) type liquid crystal, but the response speed of TN type liquid crystal is very slow, usually tens of milliseconds, which limits the application of liquid crystal light attenuation devices .

[0003] The following two solutions are adopted in the prior art to improve the response speed of the liquid crystal light attenuation device:

[0004] (1) Reducing the thickness of the liquid crystal cell of the TN-type liquid crystal light attenuation device can make the response speed of the light attenuation devi...

Claims

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