Title:
【発明の名称】グレー・スケールを用いた液晶光記憶媒体
Document Type and Number:
Japanese Patent JPH11503854
Kind Code:
A
Abstract:
An optical storage medium with gray scale capability comprising: a plurality of facing substrates in series; alignment layers disposed on one or both sides of the substrates to give alignment layer pair(s) wherein at least one of the alignment layers of each of the alignment layer pair(s) is an optical alignment layer, and wherein the optical alignment layer(s) comprise anisotropically absorbing molecules or moieties; liquid crystal layers disposed between the alignment layer pair(s); wherein, each of the liquid crystal layer(s) comprises three or more alignment regions having three or more different alignment states; and, wherein the different alignment states are controlled by exposure of optical alignment layer(s) with polarized light of a wavelength or wavelengths within the absorption band of the anisotropically absorbing molecules or moieties therein, is described. The invention is also directed to compact disc, erasable compact discs, photographic storage devices, and storage displays.
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Inventors:
Gibbons, Wayne M
Schnell, Scott Tee
Shannon, Paul Jay
Sun, Shaottan
Schnell, Scott Tee
Shannon, Paul Jay
Sun, Shaottan
Application Number:
JP53052096A
Publication Date:
March 30, 1999
Filing Date:
April 05, 1996
Export Citation:
Assignee:
ALLIANT TECHSYSTEMS INCORPORATED
International Classes:
C08F20/30; C08F20/36; C09K19/38; G02F1/1337; G11B7/0055; G02F1/13; G11B7/24; G11B7/24033; G11B7/25; (IPC1-7): G11B7/24; G02F1/13
Attorney, Agent or Firm:
Masaki Yamakawa (5 outside)