Optical compensation sheet, liquid crystal display device, and liquid crystal composition
AssigneeFuji Photo Film Co., Ltd.
InventorsKoushin Matsuoka, Ken Kawata
Life of this patent
Estimating the term…
Abstract
An optical compensation sheet favorably employable for a liquid crystal display has an optical anisotropic layer which is composed of a polymer of a non-chiral discotic liquid crystal compound having a polymerizable group and a chiral compound. The non-chiral discotic liquid crystal compound is preferably aligned at an angle between 45° and 90° to a plane of the compensation sheet and under a twisted orientation at an angle between 90° and 360°.
Claims9
An STN liquid crystal display device equipped with an optical compensation sheet having an optical anisotropic layer which comprises a chiral discotic liquid crystal compound having no polymerizable group and a polymer of a non-chiral discotic liquid crystal compound having a polymerizable group, wherein the optical anisotropic layer has a chiral discotic nematic phase, and wherein the non-chiral discotic crystal compound is oriented under a twisted orientation at an angle between 90° and 360°.
Dependencies are inferred from the claim text.