Optical compensatory sheet comprising transparent support, orientation layer and optically anisotropic layer
AssigneeFuji Photo Film Co., Ltd.
InventorYoji Ito
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Abstract
A liquid crystal display giving an excellent image without defects is proposed. The liquid crystal display is equipped with an optical compensatory sheet in which a transparent support, an orientation layer and an optically anisotropic layer formed from a liquid crystal compound are provided in this order. The orientation layer has a surface roughness of 0.1 to 2.0 nm.
Claims20
An optical compensatory sheet which comprises a transparent support, an orientation layer and an optically anisotropic layer formed by polymerizing or cross-linking a liquid crystal compound, arranged in that order, wherein the orientation layer has a surface roughness of 0.1 to 2.0 nm.
An ellipsoidal polarizing plate comprising a polarizing membrane and an optical compensatory sheet laminated on at least one surface of the polarizing membrane, wherein the optical compensatory sheet comprises a transparent support, an orientation layer and an optically anisotropic layer formed by polymerizing or cross-linking a liquid crystal compound, arranged in that order, wherein the transparent support is a polymer film having a retardation in plane in the range of 20 to 200 nm, and a retardation along thickness direction in the range of 70 to 400 nm, and wherein the orientation layer has a surface roughness of 0.1 to 2.0 nm.
Dependencies are inferred from the claim text.