Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1996-10-10
1998-09-22
Gross, Anita Pellman
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349 85, 349188, G02F 113, G02F 11333
Patent
active
058122303
ABSTRACT:
A liquid crystal display element is manufactured as follows: First, a mixture containing a ferroelectric liquid crystal (FLC) composition and a monofunctional monomer is injected into the space between opposing two electrode substrates, each of which is constituted by a substrate, an electrode, an alignment film and a polarization plate; next, the mixture is heated by irradiating it with ultraviolet light to a temperature at which the FLC composition exhibits a nematic phase or an isotropic phase so that the monomer is polymerized, and then it is cooled off. With this arrangement, isotropic micro structural elements, which locally give different threshold-value characteristics in the above-mentioned mixture, are formed into a striped structure so that a liquid crystal layer is formed. This striped structure is formed when the polymer that has been formed as a result of the polymerization is allowed to be sandwiched between smectic layers in the FLC composition during the cooling process. Consequently, it becomes possible to make the size of domains smaller as compared with the size of a pixel, and to uniformly distribute the domains over a wide range; thus, gray scale display of a liquid crystal display element is achieved.
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Kishimoto Kazuyuki
Koden Mitsuhiro
Sakaigawa Akira
Conlin David G.
Daley, Jr. William J.
Gross Anita Pellman
Sharp Kabushiki Kaisha
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