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AssigneeNippon Oil Co., Ltd.
InventorsHitoshi Mazaki, Yasushi Sato, Takehiro Toyooka
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As a compensator for use in an OCB mode liquid crystal display there is provided a compensating film capable of making color compensation and attaining such a viewing angle expansion as has not been attainable heretofore. A compensating film for a liquid crystal display, constituted by at least one layer of a compensating film to be used in an OCB mode liquid crystal display, the compensating film being formed by a discotic liquid crystalline material having a fixed orientation form of a discotic liquid crystal, the compensating film being disposed between a driving liquid crystal cell and a pair of upper and lower polarizing plates, and the orientation form being a hybrid orientation in which the angle between discotic liquid crystal directors near the upper interface of the film and the film plane and the angle between discotic liquid crystal directors near the lower interface of the film and film plane are different from each other.
A compensating element comprising a substrate not having an alignment film and a compensating film, said compensating film being a discotic liquid crystalline material havina a fixed orientation form of a discotic liquid crystal, said compensating film being disposed between a drivina liquid crystal cell and a pair of upper and lower polarizing plates, wherein said fixed orientation is a hybrid orientation in which the angle between the discotic liquid crystal directors near the upper interface of the film is different from that near the lower interface of the film.
Dependencies are inferred from the claim text.