摘要:
To provide an optical film which exhibits excellent retardation values both in the film plane and along the direction perpendicular to the film plane and shows little change in retardation values depending on environmental factors such as humidity, a liquid crystal display showing little change in viewing angle characteristics due to an environmental (humidity) change, and a polarizing plate to be used in the liquid crystal display, the cellulose acylate contains a cellulose acylate which is a mixed fatty acid ester of a cellulose and satisfies formulae specified in the specification, and a polarizing plate and a liquid crystal display using this cellulose acylate film.
摘要:
To provide an optical film which exhibits excellent retardation values both in the film plane and along the direction perpendicular to the film plane and shows little change in retardation values depending on environmental factors such as humidity, a liquid crystal display showing little change in viewing angle characteristics due to an environmental (humidity) change, and a polarizing plate to be used in the liquid crystal display, the cellulose acylate contains a cellulose acylate which is a mixed fatty acid ester of a cellulose and satisfies formulae specified in the specification, and a polarizing plate and a liquid crystal display using this cellulose acylate film.
摘要:
To provide a cellulose acylate film which exhibits excellent retardation values both in the film plane and along the direction perpendicular to the film plane, and undergoes less change in the retardation values by environmental humidity, and a polarizing plate using this film, a polarizing plate using the film, and a liquid crystal display undergoing less change in viewing angle characteristics, the cellulose acylate film satisfies formulae (I), (II), (V) and (VI), wherein Re(630) and Rth(630) is defined in the specification: 2.00≦DS2+DS3+DS6≦3.00 (I) DS6/(DS2+DS3+DS6)≧0.315 (II) 46≦Re(630)≦200 (V) 70≦Rth(630)≦350 (VI)
摘要:
A cellulose acylate film is provided and includes a cellulose acylate as a polymer component. The cellulose acylate is a fatty acid ester of cellulose, obtained by substituting a hydroxyl group of cellulose with an acetyl group or an acyl group with 3 or more carbon atoms. The cellulose acylate film is a film stretched substantially by 10% or more in a casting direction or in a transversal direction to the casting direction, the film having a linear thermal expansion rate D(MD) in a casting direction (machine direction) and a linear thermal expansion rate D(TD) in a transversal direction to casting direction (i.e., perpendicular direction to casting direction) in a specified relationship. A polarizing plate utilizing such film and a liquid crystal display equipped with such polarizing plate are provided.
摘要:
An optical cellulose acylate film comprising a polymer component which is a cellulose acylate obtained by substituting hydroxyl groups of a cellulose by an acetyl group and an acyl group having 3 or more carbon atoms, wherein a substitution degree A of the acetyl group and a substitution degree B of the acyl group having 3 or more carbon atoms satisfy the following formulae (I) and (II): 2.0≦A+B≦3.0 (I), 0
摘要翻译:一种光学纤维素酰化物膜,其包含通过用乙酰基和具有3个或更多个碳原子的酰基取代纤维素的羟基而获得的纤维素酰化物的聚合物组分,其中乙酰基的取代度A和取代度 具有3个以上碳原子的酰基的B满足下式(I)和(II):2.0 <= A + B <= 3.0(I),0
摘要:
An optical cellulose acylate film comprising a polymer component which is a cellulose acylate obtained by substituting hydroxyl groups of a cellulose by an acetyl group and an acyl group having 3 or more carbon atoms, wherein a substitution degree A of the acetyl group and a substitution degree B of the acyl group having 3 or more carbon atoms satisfy the following formulae (I) and (II): 2.0≦A+B≦3.0 (I), 0
摘要翻译:一种光学纤维素酰化物膜,其包含通过用乙酰基和具有3个或更多个碳原子的酰基取代纤维素的羟基而获得的纤维素酰化物的聚合物组分,其中乙酰基的取代度A和取代度 具有3个或更多个碳原子的酰基的B满足下式(I)和(II):2.0&lt; nEE; A + B&NlE; 3.0(I),0
摘要:
A cellulose acylate film for optics having an in-plane retardation Re (λ) of 46≦Re (630)≦200, a retardation in a film thickness direction Rth (λ) of 70≦Rth (630)≦350 and a thickness variation between every 10 mm in a breadth direction of 0.6 μm or less.
摘要:
A cellulose acylate film is provided and is excellent in increasability of an in-plane retardation and a retardation in a thickness direction, from which an additive does not bleed out, and which is excellent in surface properties. The cellulose acylate film has a thickness of 40 μm to 180 μm and contains no retardation increasing agent. Retardation values Re and Rth of the cellulose acylate film meet the following formulae (III) to (V): 46≦Re≦100 (III) Rth=a−5.9Re (IV) 520≦a≦670 (V) A polarizing plate and a VA mode liquid crystal display having wide viewing angle characteristics and small changes in color, which are using the cellulose acylate film, are provided.
摘要:
A cellulose acylate film is provided and is excellent in increasability of an in-plane retardation and a retardation in a thickness direction, from which an additive does not bleed out, and which is excellent in surface properties. The cellulose acylate film has a thickness of 40 μm to 180 μm and contains no retardation increasing agent. Retardation values Re and Rth of the cellulose acylate film meet the following formulae (III) to (V): 46≦Re≦100 (III) Rth=a−5.9Re (IV) 520≦a≦670 (V) A polarizing plate and a VA mode liquid crystal display having wide viewing angle characteristics and small changes in color, which are using the cellulose acylate film, are provided.
摘要:
A cellulose acylate film of which the difference between the in-plane retardation at a wavelength of 630 nm and the in-plane retardation at a wavelength of 450 nm is 1 to 15 nm, and satisfying the following formula (2) both in the film traveling direction and in the direction perpendicular thereto: −0.5%≦{(L′−L0)/L0}×100≦0.5% (2), wherein L0 means the length of the film before the lapse of time of 24 hours at 60° C. and 90% RH; and L′ means the length of the film after the lapse of time of 24 hours at 60° C. and 90% RH followed by humidity conditioning for 2 hours.