Patent application number | Description | Published |
20090109379 | LIQUID CRYSTAL DISPLAY DEVICE - A polymer film satisfying the following formulae (1) to (4): | 04-30-2009 |
20090117294 | CELLULOSE DERIVATIVE FILM, OPTICAL COMPENSATION FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DEVICE - A cellulose derivative film having high optical isotropy over the whole visible region and high durability against high temperature and humidity conditions is provided. The film contains a cellulose derivative having a substituent the polarizability anisotropy Δα (=αx−(αy+αz)/2) of which is 2.5×10 | 05-07-2009 |
20090290100 | Cellulose Acylate Film, Method of Producing the Same, Cellulose Derivative Film, Optically Compensatory Film Using the Same, Optically-Compensatory Film Incorporating Polarizing Plate, Polarizing Plate and Liquid Crystal Display Device - A method of producing a cellulose derivative film, the method comprising: forming a film with a solvent cast method from a dope including a cellulose derivative satisfying following conditions (a) and (b): (a) at least one among three hydroxyl groups included in a glucose unit of cellulose is substituted by a substituent of which a polarizability anisotropy Δα represented as following Expression (1) is 2.5×10 | 11-26-2009 |
20100192803 | CELLULOSE ACYLATE FILM, OPTICAL FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY APPARATUS - A cellulose acylate film includes a cellulose acylate; and a polyester diol having a hydroxyl group at each of the both terminals in an amount of 5 mass % or more based on the amount of the cellulose acylate. | 08-05-2010 |
20110001907 | CELLULOSE ESTER FILM, RETARDATION FILM USING THE SAME, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE - Thanks to a cellulose ester film comprising at least one kind of a polycondensed ester obtained from at least one kind of an aliphatic diol having an average carbon number of 2.0 to 2.5 and a dicarboxylic acid mixture containing at least one kind of an aromatic ring-containing dicarboxylic acid and at least one kind of an aliphatic dicarboxylic acid and having an average carbon number of 6.0 to 10.0, an excellent cellulose ester film yielding little process contamination at the production and ensuring high production efficiency, a retardation film with excellent characteristics, and a polarizing plate and a liquid crystal display device each using the film, are provided. | 01-06-2011 |
20110151145 | CELLULOSE ESTER FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY - A cellulose ester film is provided and includes a non-phosphoric acid additive. The cellulose ester film has: a degree of alignment of 0.12 or higher in a thickness direction of the cellulose ester film as measured by wide angle X-ray diffractometry; and an average elastic modulus of 3.7 to 4.5 GPa. | 06-23-2011 |
20120147304 | LIQUID CRYSTAL DISPLAY DEVICE, METHOD FOR MANUFACTURING THE SAME, AND IMAGE DISPLAY DEVICE - There is provided a liquid crystal display device that diminishes flickers caused by crosstalk of a three-dimensional image (an overlap of images) or reflection of external light. A liquid crystal display device includes a pair of substrates, at least one of the pair of substrates having an electrode and the pair of substrates being placed opposite each other, and a first polarizing plate placed on a light source side and a second polarizing plate placed on a view side with the liquid crystal layer sandwiched therebetween, in which a protective film on the view side of the second polarizing plate includes a transparent support satisfying 0≦|Re(550)|≦10 and an optically anisotropic layer having a λ/4 function, and Rth of the protective film on the view side of the second polarizing plate is |Rth|≦20. | 06-14-2012 |
20120320316 | OPTICAL FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE - There is provided an optical film having a small size change with a temperature change of a support of a pattern retardation film. | 12-20-2012 |
Patent application number | Description | Published |
20080212003 | Liquid crystal display device - A liquid crystal display device includes a pair of polarizing films; a liquid crystal cell that is sandwiched between the pair of polarizing films; a retardation layer (A) of 70 μm or less in thickness, which is disposed between the liquid crystal cell and one of the pair of polarizing films; and a retardation layer (B) of 70 μm or less in thickness, which is disposed between the liquid crystal cell and the other of the pair of polarizing films, wherein the retardation layers (A) and (B) satisfy following formulae (1) to (3): | 09-04-2008 |
20080230944 | METHOD FOR PRODUCING CELLULOSE ACYLATE FILM - A dope is cast onto a drum. A casting film is cooled and solidified by the drum. The casting film is peeled as a film containing a solvent. The peeled film is guided to a tenter. In the tenter, in a first drying step, the film is dried by dry air from an air duct while being stretched in the width direction in a state that side edge portions of the film are held by pins. Thereafter, in a second drying step, the film is dried while tension is applied to the film in the width direction. A first ratio calculated by (a moving speed of the pins)/(a rotation speed of the drum), a second ratio calculated by L | 09-25-2008 |
20090046225 | OPTICAL FILM, AND POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - An optical film includes a cellulose acylate that has a weight-average molecular weight of 300,000 or more; and a compound that is capable of decreasing a retardation in a thickness-direction and has a weight-average molecular weight of 1,000 or more. | 02-19-2009 |
20090163703 | Phase difference plate comprising polymer film containing compound having rod-shaped molecular structure - A phase difference plate which comprises one sheet of polymer film containing a compound having a rod-shaped molecular structure and exhibiting a maximum absorption wavelength (λmax) of less than 250 nm in an ultraviolet spectrum of its solution and which exhibits a retardation value as measured at a wavelength of 450 nm (Re450) of 60 to 135 nm and a retardation value as measured at a wavelength of 590 nm (Re590) of 100 to 170 nm, where the relationship: Re590−Re450≧2 nm is satisfied. The phase difference plate functions as a λ/4 plate. | 06-25-2009 |
20090286016 | CELLULOSE ESTER FILM, RETARDATION FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE - Provided is a cellulose ester film including a polycondensed ester which is obtained from a mixture containing an aromatic dicarboxylic acid, an aliphatic dicarboxylic acid, an aliphatic diol having an average carbon atom number of from 2.0 to 3.0 and a monocarboxylic acid, and both terminals of which are a monocarboxylic acid ester derivative. | 11-19-2009 |