摘要:
A homeotropic alignment liquid crystal film is provided with a liquid crystalline substance containing a side chain liquid crystalline compound having an oxetanyl group, as a constituent, aligned homeotropically on an alignment substrate while being in a liquid crystal state and fixed in the homeotropic alignment by allowing the oxetanyl group to react. Thus, the homeotropic alignment liquid crystal film can be stably produced without necessitating a complicated step such as light irradiation under an inert gas atmosphere and is excellent in alignment retainability after being fixed in the homeotropic alignment and in mechanical strength.
摘要:
A homeotropic alignment liquid crystal film is provided with a liquid crystalline substance containing a side chain liquid crystalline compound having an oxetanyl group, as a constituent, aligned homeotropically on an alignment substrate while being in a liquid crystal state and fixed in the homeotropic alignment by allowing the oxetanyl group to react. Thus, the homeotropic alignment liquid crystal film can be stably produced without necessitating a complicated step such as light irradiation under an inert gas atmosphere and is excellent in alignment retainability after being fixed in the homeotropic alignment and in mechanical strength.
摘要:
The present invention provides a transmissive liquid crystal display device which is less in display characteristics fluctuations, bright in display images, high in contrast and less in viewing angle dependency and comprises a backlight, a polarizer, a second optically anisotropic layer, a first optically anisotropic layer, a homogeneously aligned liquid crystal cell comprising upper and lower substrates facing each other and a liquid crystal layer sandwiched between the upper and lower substrates, and a polarizer, arranged in piles in this order from the backlight, wherein a liquid crystal film forming the first optically anisotropic layer, a liquid crystal film forming the second optically anisotropic layer and the liquid crystal cell have a predetermined relationship in the wavelength dispersion of birefringence, the first optically anisotropic layer, the second optically anisotropic layer and the liquid crystal cell upon application of an electric voltage for black image display, have a predetermined relationship in retardation, and the first optically anisotropic layer comprises a liquid crystal film with a fixed nematic hybrid orientation.
摘要:
The present invention provides a transmissive liquid crystal display device which is less in variation in displaying characteristics, bright in displaying image, high in contrast and less in viewing angle dependency. The liquid crystal display comprises at least a specific first optically anisotropic layer with a fixed nematic hybrid orientation structure and a specific second optically anisotropic layer.
摘要:
A homeotropic alignment liquid crystal film is provided with a liquid crystalline substance containing a side chain liquid crystalline compound having an oxetanyl group, as a constituent, aligned homeotropically on an alignment substrate while being in a liquid crystal state and fixed in the homeotropic alignment by allowing the oxetanyl group to react. Thus, the homeotropic alignment liquid crystal film can be stably produced without necessitating a complicated step such as light irradiation under an inert gas atmosphere and is excellent in alignment retainability after being fixed in the homeotropic alignment and in mechanical strength.
摘要:
An elliptical polarizer with excellent viewing angle characteristics is provided which comprises at least a first polarizer, a first optical anisotropic layer, a second optical anisotropic layer, and a third optical anisotropic layer, laminated in this order, wherein the first optical anisotropic layer satisfies [1] 50≦Re1≦500, the second optical anisotropic layer satisfies [2] 0≦Re2≦20 and [3] −500≦Rth2≦−30, and the third optical anisotropic layer satisfies [4] 100≦Re 3≦180 wherein Re and Rth indicate the retardation values in the plane and thickness direction, respectively, of each of the optical anisotropic layers.
摘要:
A transflective liquid crystal display has a first substrate having a transparent electrode, a second substrate having a transflective electrode, a liquid crystal layer disposed between the first and second substrates, a first optical anisotropic element arranged on the first substrate, and a second optical anisotropic element arranged on the second substrate and having a liquid crystal film. An angle within the range of 0 to 30 degrees is formed by a tilt direction defined by a projection direction of a director of a liquid crystalline polymer molecule on a surface of the liquid crystal film to which an angle of the director of the liquid crystalline polymer molecule is smaller and a pre-tilt direction defined by a projection direction of a director of a liquid crystalline molecule on an interface between liquid crystal of the liquid crystal layer and a surface of the first substrate.
摘要:
A retardation film, formed by stretching a film comprising a norbornene-based ring-opening copolymer containing a structural unit (A) represented by the following general formula (1): [in the formula (1), n represents an integer of any one of 0 and 1, R1 represents a hydrogen atom or the like, X1 represents a group represented by a formula: —CH═CH— or the like, a and b each independently represent an integer of 0 to 6, Ys each independently represent a methylene group or the like, and Zs each independently represent a methylene group or the like], and a structural unit (B) represented by the following general formula (2): [in the formula (2), m represents an integer of any one of 0 and 1, X2 represents a group represented by a formula: —CH═CH— or the like, and R2, R3, R4, and R5 each independently represent a hydrogen atom or the like], wherein a content of the structural unit (A) is not less than 5 mol % but not more than 95 mol % relative to a total amount of the structural units (A) and (B).
摘要:
An elliptical polarizer with excellent viewing angle characteristics is provided which comprises at least a first polarizer, a first optical anisotropic layer, a second optical anisotropic layer, and a third optical anisotropic layer, laminated in this order, wherein the first optical anisotropic layer satisfies [1] 50≦Re1≦500, the second optical anisotropic layer satisfies [2] 0≦Re2≦20 and [3] −500≦Rth2≦−30, and the third optical anisotropic layer satisfies [4] 100≦Re3≦180 wherein Re and Rth indicate the retardation values in the plane and thickness direction, respectively, of each of the optical anisotropic layers.
摘要:
An elliptical polarizer is provided having excellent viewing angle improving effects. The elliptical polarizer includes a polarizer, a first optical anisotropic layer, and a second optical anisotropic layer, laminated in this order. The first optical anisotropic layer satisfies the requirements of 0.8≦NZ1≦1.6 and 120≦Re1≦250 and is disposed so that the slow axis thereof is orthogonal to the absorption axis of the polarizer. The second optical anisotropic layer is a liquid crystal film having a retardation value in the plane of 30 to 150 nm with respect to a 550 nm wavelength light and fixed in a nematic hybrid alignment wherein the average tilt angle of the liquid crystal molecules of a liquid crystalline polymer exhibiting a positive optical uniaxiality, and is disposed so that the aligned direction thereof is parallel to the absorption axis of the first polarizer. The elliptical polarizer is used in a TN type liquid crystal display device so that the second optical anisotropic layer is disposed on the liquid crystal cell side.