Cholesteric liquid crystal/polymer gel dispersion bistable at zero field

Author

Yang, D.K. ; Chien, L.C. ; Doane, J.W.

Author_Institution

Liquid Crystal Inst., Kent State Univ., OH, USA

fYear

1991

fDate

15-17 Oct. 1991

Firstpage

49

Lastpage

52

Abstract

A novel liquid crystal/polymer gel dispersion is reported which exhibits two contrasting optical states which are stable at zero field; one state reflects light at a preselected color and the other state is scattering. In a display cell, the material can be selectively driven to either state by a suitable voltage pulse. A polymer gel can be used to stabilize the optical states of a cholesteric liquid crystal to create a bistable color display. This system has a high potential for multiplexed flat panel displays without the use of an active matrix substrate. Such a display can also be used for long-term information storage and optical signal processing.<>

Keywords

cholesteric liquid crystals; disperse systems; flat panel displays; liquid crystal displays; optical bistability; bistable at zero field; bistable color display; cholesteric liquid crystal; contrasting optical states; display cell; liquid crystal/polymer gel dispersion; long-term information storage; multiplexed flat panel displays; optical signal processing; Active matrix liquid crystal displays; Flat panel displays; Light scattering; Liquid crystal displays; Liquid crystal polymers; Optical bistability; Optical polymers; Optical scattering; Optical signal processing; Polymer gels;

fLanguage

English

Publisher

ieee

Conference_Titel

Display Research Conference, 1991., Conference Record of the 1991 International

Conference_Location

San Diego, CA, USA

Print_ISBN

0-7803-0213-3

Type

conf

DOI

10.1109/DISPL.1991.167430

Filename

167430