Optical compensatory sheet and liquid crystal display
AssigneeFuji Photo Film Co., Ltd.
InventorsShigeki Yokoyama, Ken Kawata, Hideyuki Nishikawa, Koshin Matsuoka, Eiichiro Aminaka, Yoji Ito
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Abstract
An optical compensatory sheet comprises an optically anisotropic layer formed of discotic liquid crystal molecules provided on a transparent substrate. The liquid crystal molecules are horizontally aligned in the optically anisotropic layer. An average inclined angle between discotic planes of the discotic liquid crystal molecules and a surface of the transparent substrate is less than 5°. The discotic liquid crystal molecules are fixed in the optically anisotropic layer while keeping the horizontal alignment.
Claims14
An optical compensatory sheet comprising an optically anisotropic layer formed of discotic liquid crystal molecules provided on a transparent substrate, wherein the discotic liquid crystal molecules are horizontally aligned in the optically anisotropic layer, an average inclined angle between discotic planes of said discotic liquid crystal molecules and a surface of said transparent substrate being less than 5°, and said discotic liquid crystal molecules being fixed in the optically anisotropic layer while keeping the horizontal alignment, and wherein the optically anisotropic layer further contains a melamine compound.
A liquid crystal display comprising a liquid crystal cell of a vertical alignment mode, two polarizing elements and one or two optical compensatory sheets, each of said polarizing elements being arranged on each side of the liquid crystal cell, each of said optical compensatory sheets being arranged between the liquid crystal cell and each polarizing element, wherein the optical compensatory sheet comprises an optically anisotropic layer formed of discotic liquid crystal molecules provided on a transparent substrate, said discotic liquid crystal molecules being horizontally aligned in the optically anisotropic layer, and wherein an average inclined angle between discotic planes of the discotic liquid crystal molecules and a surface of the transparent substrate is less than 5°, said discotic liquid crystal molecules being fixed in the optically anisotropic layer while keeping the horizontal alignment, and wherein the optically anisotropic layer further contains a melamine compound.
A liquid crystal display comprising a liquid crystal cell of a bend alignment mode, two polarizing elements and one or two optical compensatory sheets, each of said polarizing elements being arranged on each side of the liquid crystal cell, each of said optical compensatory sheets being arranged between the liquid crystal cell and each polarizing element, wherein the optical compensatory sheet comprises an optically anisotropic layer formed of discotic liquid crystal molecules provided on a transparent substrate, said discotic liquid crystal molecules being horizontally aligned in the optically anisotropic layer, and wherein an average inclined angle between discotic planes of the discotic liquid crystal molecules and a surface of the transparent substrate is less than 5°, said discotic liquid crystal molecules being fixed in the optically anisotropic layer while keeping the horizontal alignment, and wherein the optically anisotropic layer further contains a melamine compound.
Dependencies are inferred from the claim text.