摘要:
A retardation plate comprising at least one optically anisotropic layer, wherein at least one of said optically anisotropic layers is formed from a composition containing a liquid crystalline compound represented by the following formula: wherein Y11, Y12 and Y13 are methine or N; L1, L2 and L3 are single bond or divalent group; H1, H2 and H3 are formula (DI-A) or (DI-B); YA1, YA2, YB1 and YB2 are methine or N; XA and XB are O, S, etc.; R1, R2 and R3 are -(-L21-Q2)n1-L22-L23-Q1; L21 is single bond or divalent group; Q2 is cyclic divalent group; n1 is 0-4; L22 is —O—, —O—CO—, etc; L23 is —O—, —S—, etc.; Q1 is polymerizable group or H.
摘要:
A liquid crystal composition is provided and includes: at least one kind of liquid crystal R exhibiting a liquid crystal phase having a positive birefringence property; and at least one kind of liquid crystal D exhibiting a liquid crystal phase having a negative birefringence property. The characteristic birefringence Δn (λ) at wavelength λ of the liquid crystal phase exhibited by the liquid crystal R satisfies the equation (II): Δn (450 nm)/Δn (550 nm)
摘要:
A liquid crystal display showing a high contrast and reduced in color shift depending on the viewing angle is provided.The liquid crystal display device comprises a liquid crystal cell having a retardation value Re1(400) at 400 nm and a retardation value Re1(550) at 500 nm in the black state; and at least one layer of optically anisotropic layer formed of a composition comprising at least one species of liquid crystalline compound, having a retardations value Re2(400) at 400 nm and a retardation value Re2(550) at 550 nm,wherein Re2(400) and Re2(550) of said optically anisotropic layer, and retardations values Re1(400) and Re1(550) satisfy the relational expression (1) below: 0.9≦α2/α1≦1.1 Relational Expression (1) where, α1=Re1(400)/Re1(550) and α2=Re2(400)/Re2(550).
摘要:
An optically anisotropic film comprising a liquid crystal compound forming a nematic phase or smectic A phase, the liquid crystalline phase satisfying the following inequality: Δn(450 nm)/Δn(550 nm)
摘要翻译:包含形成向列相或近晶A相的液晶化合物的光学各向异性膜,液晶相满足以下不等式:&Dgr; n(450nm)/&Dgr; n(550nm)<1.0,其中每个&Dgr; n (λ)表示波长为λ的固有双折射,其中光学各向异性膜(A)的绝对面内延迟(Re)为40nm以下,厚度方向(Rth)的延迟为-10nm 或更少。
摘要:
A new liquid crystal compound comprises two condensed and substituted rings. The ring preferably is a five-membered heterocyclic ring. The heterocyclic ring is preferably condensed with benzene ring or an aromatic six-membered heterocyclic ring. The benzene ring or the aromatic six-membered heterocyclic ring is preferably substituted with a group comprising a cyclic structure and a chain structure. The liquid crystal compound is advantageously used in preparation of a thin phase retarder, such as a wide-ranged λ/4 plate, which gives inverse wavelength distribution. The phase retarder can be easily produced according to a simple process by using the new liquid crystal compound.
摘要:
To provide a liquid crystalline composition, which can be obtained by mixing a plurality of liquid crystalline compositions each of which can exhibit different liquid crystal phases from one another, being capable of exhibiting a biaxial liquid crystal phase, a liquid crystalline composition contains a liquid crystalline composition R which exhibits a liquid crystal phase having a positive birefringence; and a liquid crystalline composition D which exhibits a liquid crystal phase having a negative birefringence, in which the liquid crystalline composition R comprises a compound having a rectangular plate-like shape.
摘要:
A novel optically-anisotropic film is disclosed. The film is formed of a composition comprising at least one discotic liquid-crystal compound having a ratio, α1, which is a ratio of birefringence at 400 nm to birefringence at 550 nm in a liquid-crystal state, of less than 1.25, in which the molecules of the liquid-crystal compound are fixed in an alignment state at a mean tilt angle ranging from 35 to 85°, wherein its in-plane retardation Re, as measured in a direction normal to a plane of the optically-anisotropic film for 50 nm wavelength light, falls within the range from 60 nm to 220 nm.
摘要:
A liquid-crystalline compound of the following formula: wherein Y11, Y12 and Y13 are methine or N; L1, L2 and L3 are single bond or divalent group; H1, H2 and H3 are formula (DI-A) or (DI-B); YA1, YA2, YB1 and YB2 are methine or N; XA and XB are O, S, etc.; R1, R2 and R3 are -(-L21-Q2)n1-L22-L23-Q1; L21 is single bond or divalent group; Q2 is cyclic divalent group; n1 is 0-4; L22 is —O—, —O—CO—, etc; L23 is —O—, —S—, etc.; Q1 is polymerizable group or H.
摘要翻译:下式的液晶化合物:其中Y 11,Y 12和Y 13是次甲基或N; L 1,L 2和L 3是单键或二价基团; H 2,H 2和H 3是式(DI-A)或(DI-B); YA 1,YA 2,YB 1和Y B 2是次甲基或N; XA和XB为O,S等; R 1,R 2,R 3和R 3是 - ( - L 21) - Q 2, 0≤L≤0.2,其中n≥0≤0.2,其中, L 21是单键或二价基团; Q 2是环状二价基团; n1为0-4; L 22是-O-,-O-CO-等; L 23是-O-,-S-等; Q 1是可聚合基团或H.
摘要:
A retardation plate having a high film strength and having an optical property is provided by using a biaxial liquid crystal compound, in which the direction having a minimum refractive index of the optically anisotropic thin layer almost coincides with the normal direction in the film plane of the retardation plate, and the retardation plate comprises a transparent support and at least one optically anisotropic layer containing a liquid crystal compound capable of expressing a biaxial liquid crystal phase, wherein the liquid crystal compound is a polymerizable compound and/or a polymer compound.
摘要:
To provide a liquid crystalline compound capable of exhibiting a biaxial liquid crystal phase, provide a trifunctional or greater functional polymerizable liquid crystalline compound having polymerizable groups, and also to provide a liquid crystalline composition and a retardation film which are using the liquid crystalline compound, a compound and a liquid crystalline compound each are represented by formula (I) defined in the specification; a liquid crystalline composition contains the compound; and a retardation film has an optically anisotropic layer formed from the compound.