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New display based on electrically induced index‐matching in an inhomogeneous medium

 

作者: H. G. Craighead,   Julian Cheng,   S. Hackwood,  

 

期刊: Applied Physics Letters  (AIP Available online 1982)
卷期: Volume 40, issue 1  

页码: 22-24

 

ISSN:0003-6951

 

年代: 1982

 

DOI:10.1063/1.92904

 

出版商: AIP

 

数据来源: AIP

 

摘要:

The operation of a new light modulation device that employs electric field controlled light scattering in an inhomogeneous medium is described. The orientation of a nematic liquid crystal, contained in micrometer sized inclusions in a nonabsorbing solid, is changed to produce a varying refractive index. When the refractive index of the liquid crystal matches that of the solid, the composite medium is nonscattering and transparent. If the refractive indices do not match, the medium is scattering and opaque. High contrast ratios have been measured for transmitted light with a response time of a ∼1 ms. The application of this technique to passive display devices is discussed.

 

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