摘要:
A method for producing an optical film including a birefringence layer having a refractive index distribution that satisfies nx>nz>ny, by which productivity of an optical film becomes high because there are a few steps, and a contamination is reduced, is provided. The method for producing an optical film including a birefringence layer includes forming an applied film by applying a birefringence layer forming material containing a non-liquid crystalline material with a birefringence (Δnxz) in the thickness direction thereof of 0.0007 or more directly on a shrinkable film, and forming a birefringence layer having a refractive index distribution that satisfies nx>nz>ny by shrinking the applied film through shrinking the shrinkable film.
摘要:
A method for producing an optical film including a birefringent layer having a refractive index distribution satisfying nx>nz>ny that can be produced by a small number of steps, contains less foreign matter trapped therein, and has high productivity.An optical film including a birefringent layer, wherein the method includes steps of: forming a coating film by directly applying a material for forming a birefringent layer on the shrinkable film; shrinking the coating film in a first direction by shrinking the shrinkable film; and stretching a laminate of the shrinkable film and the coating film in a second direction orthogonal to the first direction, wherein the material for forming a birefringent layer contains at least one resin selected from the group consisting of norbornene resins, polycarbonate resins, cellulose resins, polyamides, and polyurethanes, and wherein the birefringent layer has a refractive index distribution satisfying nx>nz>ny.
摘要:
A method for producing an optical film including a birefringent layer having a refractive index distribution satisfying nx>nz>ny that can be produced by a small number of steps, contains less foreign matter trapped therein, and has high productivity. The method includes steps of: forming a coating film by directly applying a material for forming a birefringent layer on the shrinkable film; shrinking the coating film in a first direction by shrinking the shrinkable film; and stretching a laminate of the shrinkable film and the coating film in a second direction orthogonal to the first direction, wherein the material for forming a birefringent layer contains at least one resin selected from norbornene resins, polycarbonate resins, cellulose resins, polyamides, and polyurethanes, and wherein the birefringent layer has a refractive index distribution satisfying nx>nz>ny. An optical film produced by the method.
摘要:
A method for producing an optical film including a birefringence layer having a refractive index distribution that satisfies nx>nz>ny, by which productivity of an optical film becomes high because there are a few steps, and a contamination is reduced, is provided. The method for producing an optical film including a birefringence layer includes forming an applied film by applying a birefringence layer forming material containing a non-liquid crystalline material with a birefringence (Δnxz) in the thickness direction thereof of 0.0007 or more directly on a shrinkable film, and forming a birefringence layer having a refractive index distribution that satisfies nx>nz>ny by shrinking the applied film through shrinking the shrinkable film.
摘要:
It is an object to provide a method for producing a retardation film and the like, the retardation film contributing to cost reduction and enlargement of the screen of liquid crystal display devices having a high level of visibility.There is provided a method for producing a retardation film, the method including conveying a long polymer film being continuously fed in a conveying direction while holding both side edges of the polymer film and stretching the polymer film in a direction transverse to the conveying direction while conveying the polymer film, wherein the retardation film has an optical axis in the direction transverse to the conveying direction of the polymer film and has optical properties satisfying 0.1≦NZ≦0.9, and wherein the polymer film is stretched in the transverse direction with sagged in the conveying direction.
摘要:
The polycarbonate resin of the invention includes a first structural unit derived from a dihydroxy compound represented by a general formula (1), a second structural unit derived from a dihydroxy compound represented by a general formula (2), and a third structural unit derived from at least one dihydroxy compound selected from the group consisting of a dihydroxy compound represented by a general formula (3), a dihydroxy compound represented by a general formula (4), a dihydroxy compound represented by a general formula (5), and a dihydroxy compound represented by a general formula (6), and in which the first structural unit derived from a dihydroxy compound represented by the general formula (1) accounts for 18% by mole or more of the polycarbonate resin. The above general formulae (1) to (6) are described in the specification of the present application.
摘要:
The polycarbonate resin of the invention includes a first structural unit derived from a dihydroxy compound represented by a general formula (1), a second structural unit derived from a dihydroxy compound represented by a general formula (2), and a third structural unit derived from at least one dihydroxy compound selected from the group consisting of a dihydroxy compound represented by a general formula (3), a dihydroxy compound represented by a general formula (4), a dihydroxy compound represented by a general formula (5), and a dihydroxy compound represented by a general formula (6), and in which the first structural unit derived from a dihydroxy compound represented by the general formula (1) accounts for 18% by mole or more of the polycarbonate resin. The above general formulae (1) to (6) are described in the specification of the present application.
摘要:
Provided is a producing method for a retardation film with a reverse wavelength dispersion property, which is highly reliable in terms of a small wavelength dispersion change and is low in display unevenness due to a position dependence of a retardation variation. The production method is designed for a retardation film which satisfies the following formulas (1) and (2): 0.7
摘要:
There are provided a liquid crystal panel and a liquid crystal display apparatus each having an excellent screen contrast, a small color shift, and small display unevenness. The liquid crystal panel includes a liquid crystal cell, a first polarizer, a second polarizer, a protective layer, a first optical compensation layer and a second optical compensation layer. The protective layer has relationships of 0 nm≦Δnd (550) 10 nm and 0 nm≦Rth(550) 20 nm. The first optical compensation layer has an absolute value of a photoelastic coefficient of 40×10−12 (m2/N) or less, and has relationships of Δnd(380) ny>nz and 90 nm≧Δnd(550) ≦200 nm. The second optical compensation layer has relationships of Rth(380)>Rth(550)>Rth(780) and nx=ny>nz.
摘要:
There are provided a liquid crystal panel and a liquid crystal display apparatus each having an excellent screen contrast, a small color shift, and small display unevenness. The liquid crystal panel includes a liquid crystal cell, a first polarizer, a second polarizer, a protective layer, a first optical compensation layer and a second optical compensation layer. The protective layer has relationships of 0 nm≦Δnd (550)≦10 nm and 0 nm≦Rth(550)≦20 nm. The first optical compensation layer has an absolute value of a photoelastic coefficient of 40×10−12 (m2/N) or less, and has relationships of Δnd(380) ny≧nz and 90 nm≦Δnd(550)≦200 nm. The second optical compensation layer has relationships of Rth(380)>Rth(550)>Rth(780) and nx=ny>nz.