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Proceedings Paper

Quasi-guest-host-effect liquid crystal displays: a new kind of positive contrast liquid crystal display device
Author(s): Jinggang Zhao; Zemin Yang; Zaigang Sun; Peng Sun; Junyu Sha; Jian Gao
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Paper Abstract

A new kind of liquid crystal display (LCD) which positive dichroic dye disperses in LC is described in this paper. The quasi guest-host effect LCD is composed of a polarizer, twisted-nematic effect liquid crystal layer, and a guest- host effect liquid crystal layer which positive dichroic dye disperses in positive dielectric anisotropy nematic LC. Its multiplexing ability is as high as that of the twisted- nematic effect, and its contrast is as high as that of the guest-host effect of negative contrast display. The technological conditions of the new kind of LCD are similar to those of twisted-nematic LCD. The unfavorable factors are that it needs two liquid crystal layers and that the weight increases to some degree.

Paper Details

Date Published: 30 September 1996
PDF: 3 pages
Proc. SPIE 2892, Display Devices and Systems, (30 September 1996); doi: 10.1117/12.253369
Show Author Affiliations
Jinggang Zhao, Dalian Eastern Display Co., Ltd. (China)
Zemin Yang, Dalian Eastern Display Co., Ltd. (China)
Zaigang Sun, Dalian Eastern Display Co., Ltd. (China)
Peng Sun, Dalian Eastern Display Co., Ltd. (China)
Junyu Sha, Dalian Eastern Display Co., Ltd. (China)
Jian Gao, Dalian Eastern Display Co., Ltd. (China)


Published in SPIE Proceedings Vol. 2892:
Display Devices and Systems
Eric G. Lean; Zhiren Tian; Bao Gang Wu, Editor(s)

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