Liquid crystal display with optical compensatory sheet having discotic molecules varyingly inclined
First Claim
1. An optical compensatory sheet which comprises a transparent support and an optically anisotropic layer provided thereon, wherein the optically anisotropic layer comprises a compound having one or more discotic structure units in its molecule and has a negative birefringence, and the discotic structure units have planes inclined from a plane of the transparent support at angles varying along a direction of depth of the optically isotropic layer.
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Accused Products
Abstract
Disclosed is an optical compensatory sheet which comprises a transparent support and an optically anisotropic layer provided thereon, wherein the optically anisotropic layer comprises a compound having a discotic structure unit in its molecule and has negative birefringence, and the discotic structure unit has a plane inclined from a plane of the transparent support at an angle varying along a direction of depth of the anisotropic layer. A liquid crystal display and a color liquid crystal display provided with the optical compensatory sheet are also disclosed.
260 Citations
23 Claims
- 1. An optical compensatory sheet which comprises a transparent support and an optically anisotropic layer provided thereon, wherein the optically anisotropic layer comprises a compound having one or more discotic structure units in its molecule and has a negative birefringence, and the discotic structure units have planes inclined from a plane of the transparent support at angles varying along a direction of depth of the optically isotropic layer.
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12. A liquid crystal display comprising a liquid crystal cell which comprises a pair of substrates provided with a transparent electrode and twist-oriented nematic liquid crystal sealed therebetween, a pair of polarizing sheets arranged on both sides of the cell, and an optical compensatory sheet provided between the liquid crystal cell and the polarizing sheet;
wherein the optical compensatory sheet comprises a transparent support and an optically anisotropic layer provided thereon, and the optically anisotropic layer comprises a compound having one or more discotic structure units in its molecule and has a negative birefringence, the discotic structure units having planes inclined from a plane of the transparent support at angles varying along a direction of depth of the optically anisotropic layer. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A color liquid crystal display comprising a liquid crystal cell which comprises a pair of substrates provided with a transparent electrode, a transparent electrode of picture element and color filter, and twist-oriented nematic liquid crystal sealed between the substrates, a pair of polarizing sheets arranged on both sides of the cell, and an optical compensatory sheet provided between the liquid crystal cell and the polarizing sheet;
wherein the optical compensatory sheet comprises a transparent support and an optically anisotropic layer provided thereon, and the optically anisotropic layer comprises a compound having one or more discotic structure units in its molecule and has a negative birefringence, the discotic structure units having planes inclined from a plane of the transparent support at angles varying along a direction of depth of the optically anisotropic layer. - View Dependent Claims (19, 20, 21, 22, 23)
Specification