Patent application number | Description | Published |
20090052032 | OPTICAL FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY - An optical film is provided and includes a transparent polymer film. The optical film has at least an A1 value defined by Re (450)/Re (550) of from 0.10 to 0.95 and A2 value defined by Re (650)/Re (550) of from 1.01 to 1.50. Re (λ) represents the retardation value of the film with respect to light having a wavelength of λ nm; and Rth (λ) is the retardation value in the thickness direction of film with respect to light having a wavelength of λ nm. | 02-26-2009 |
20090079910 | OPTICAL COMPENSATION FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY - An optical compensation film is provided and has a cellulose acylate film coated with an optically anisotropic layer containing a liquid crystalline compound, cellulose having a glucose unit, a hydroxyl group of the glucose unit being substituted with an acyl group having at least two carbon atoms. The cellulose acylate film satisfies relationships specified in the specification. | 03-26-2009 |
20090115940 | Optically compensatory film and polarizing plate and liquid crystal display using same - An optical film is provided and includes a transparent polymer film. The optical film satisfies specific relations of retardation values and has a glass transition temperature of 120° C. or higher | 05-07-2009 |
20090122234 | Optical compensation film, polarizing plate and liquid crystal display - An optical compensation film is provided and includes a cellulose acylate film and an optically anisotropic layer containing a liquid crystalline compound. The cellulose acylate film satisfies specific conditions in relation to substitution degrees of hydroxyl groups in glucose units constituting cellulose of the cellulose acylate film, and has a thickness of 40 to 85 μm. | 05-14-2009 |
20090174846 | POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE EQUIPPED WITH THE SAME - Disclosed is a polarizing plate comprising a protective film and a liquid crystal display device that utilizes the polarizing plate, wherein the protective film has a moisture permeability of 1 g/m | 07-09-2009 |
20090296213 | Polarizing plate, and liquid crystal display - A polarizing plate including: a protective film; a polarizer; and a polymer substrate, laminated in this order, wherein the polarizer has a thickness of 10 to 25 μm and a width of 1700 to 2300 mm, and the polymer substrate has a thickness of 30 to 70 μm. | 12-03-2009 |
20100245730 | CELLULOSE ACYLATE FILM AND METHOD FOR PRODUCING SAME, RETARDATION FILM, POLARIZER AND IMAGE DISPLAY DEVICE - A method for producing a cellulose acylate film, comprising casting a polymer solution that comprises a plasticizer having a number-average molecular weight of 200-10000 and a cellulose acylate to form a web; stretching the web having a residual solvent amount of 100-300% by mass in one direction at from −30° C. to 30° C.; drying the stretched web to reduce the residual solvent amount from 6-120% by mass to less than 12% by mass while controlling the surface temperature of the web so as not to reach 200° C. or higher; and stretching the resulting film at 60-200° C. in a direction different form the stretching direction of the first stretching. | 09-30-2010 |
20120092594 | OPTICAL FILM AND LIQUID CRYSTAL DISPLAY DEVICE - An optical film contains a cellulose acylate film, and at least two layers of an optically anisotropic layer A and an optically anisotropic layer B, wherein the cellulose acylate film satisfies the specific formulae, Re(548) of the optically anisotropic layer A is from 80 to 190 nm and the slow axis of the optically anisotropic layer A is at 45°±10° with respect to the film conveying direction, and the optically anisotropic layer B satisfies the specific formulae. | 04-19-2012 |
20120092595 | Optical film, polarizing plate and liquid crystal display device - An optical film is provided and includes: a transparent support satisfying the following expressions (1) and (2); and an optically anisotropic layer having a λ/4 function. The optical film has an Rth (550) satisfying a relation of |Rth (550)|≦20. | 04-19-2012 |
20120249933 | CELLULOSE ACYLATE FILM, ITS PRODUCTION METHOD, POLARIZER AND LIQUID CRYSTAL DISPLAY DEVICE - A cellulose acylate film containing a cellulose acylate having a total degree of substitution of from 1.5 to 2.6 and a polycondensate ester, satisfying 3.4≦Rth(550)/d, 40 nm≦Re(550)≦60 nm and 100 nm≦Rth(550)≦300 nm, having a film thickness of from 20 to 45 μm and having an internal haze of from 0.005 to 0.07% (d means the film thickness (μm)). | 10-04-2012 |
20120262651 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device comprising a liquid crystal cell and a polarizer arranged on at least one outer side of the liquid crystal cell, wherein the liquid crystal cell includes a pair of substrates at least one of which has an electrode and which are arranged oppositely to each other, and a liquid crystal layer sandwiched between the substrates, and at least one substrate includes at least three color pixels of B, G and R satisfying the following formula (1-1), and the polarizer includes a polarizing element and a film satisfying the following formula (1-2) and containing an optically-anisotropic layer: | 10-18-2012 |
20120268693 | CELLULOSE ACYLATE FILM, POLARIZER AND LIQUID CRYSTAL DISPLAY DEVICE - A cellulose acylate film, which comprises a cellulose acylate having a total degree of substitution of from 2.0 to 2.5, a first optical enhancer of an ester having an absorption maximum λmax at less than 250 nm, and a second optical enhancer having an absorption maximum λmax at from more than 240 nm to 300 nm, and satisfies the following formulae (1) and (2), in which the ester of the first optical enhancer is a compound obtained through condensation of an oxo-acid of an organic acid or an inorganic acid and a hydroxyl group-containing compound: | 10-25-2012 |
20120268694 | CELLULOSE ACYLATE FILM, METHOD FOR PRODUCING SAME, POLARIZER AND LIQUID CRYSTAL DISPLAY DEVICE - A cellulose acylate film, which comprises a cellulose acylate having a total degree of substitution of from 2.1 to 2.3 and a non-phosphate compound, which satisfies the following formulae (1) and (2), and which has a thickness of from 10 μm to 45 μm, has desired optical expressibility, small internal haze, and curling resistance when used in polarizer, and, when mounted in liquid crystal display devices, is capable of significantly solving the problem of color shift and corner unevenness on the display panel: | 10-25-2012 |
20140293201 | METHOD FOR PRODUCING LAMINATED FILM, POLARIZING PLATE, LIQUID CRYSTAL DISPLAY DEVICE, AND OPTICAL FILM - A laminated film having a retardation layer A and a layer B that are formed through solvent co-casting is provided. The layer A has a thickness of 5 to 30 μm. The layer B has a higher tensile modulus compared to the layer A. An interlayer peeling force between the layer A and the layer B is 0.05 to 5 N/cm. The laminated film overcomes the deterioration of handling property generally occurring with the reduction of film thickness in solvent casting method. | 10-02-2014 |
20140375927 | CIRCULAR POLARIZING PLATE HAVING PATTERNED RETARDATION LAYER AND ORGANIC EL DISPLAY ELEMENT HAVING SAID CIRCULAR POLARIZING PLATE - An image display device in which an image display panel, at least one patterned retardation layer and a polarization element layer are arranged in this order, and the patterned retardation layer includes first retardation regions and second retardation regions which are alternately arranged in a stripe-like form and in which at least one of an in-plane slow axis direction and a retardation is different from each other. | 12-25-2014 |
20150029445 | RETARDATION FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY - A retardation film includes a first optically anisotropic layer having liquid crystal compounds fixed in a homogeneously aligned state and a leveling agent, and having an order parameter of 0.75 to 0.95 and a thickness of 0.3 to 3.0 μm; an intermediate layer including a resin having a solubility parameter SP value of 21.5 to 24.7, calculated by Hoy's method, the intermediate layer having a thickness of 3.0 μm or less; and a second optically anisotropic layer having liquid crystal compounds fixed in a homeotropically aligned state, and having an order parameter OP of 0.6 to 0.95 and a thickness of 0.3 to 3.0 μm, wherein OP is represented by the following equation; OP=(A | 01-29-2015 |