Patent application number | Description | Published |
20080259254 | Liquid Crystal Display Device - [PROBLEMS] To provide a liquid crystal display device that does not need any surface aligning treatment, realizes striking increase of a response speed of movie display and is free from any light leakage (produce dark field) at black display. | 10-23-2008 |
20080291369 | Optical Film, Optical Compensation Film, Polarizing Plate, and Liquid-Crystal Display Device - An optical film comprising a transparent support and an optically-anisotropic layer formed of a composition comprising at least one liquid-crystal compound, wherein the transparent support comprises at least one selected from cycloolefin-base homopolymers and copolymers, and the optically-anisotropic layer satisfies the following relation (1): Re(450)/Re(650)<1.25, is disclosed. An optical compensation film comprising a transparent support, and an optically-anisotropic layer formed of a composition comprising a liquid-crystal compound, wherein the transparent support comprises a polymer having at least either of lactone ring unit or glutaric anhydride unit, is also disclosed. | 11-27-2008 |
20090009866 | OPTICAL COMPENSATION SHEET, POLARIZING PLATE AND TN-MODE LIQUID CRYSTAL DISPLAY DEVICE - An optical compensation sheet for a TN-mode liquid crystal display device is provided and includes a transparent film including one or more layers, and the optical compensation sheet satisfies formulae (1) and (2). | 01-08-2009 |
20090086131 | LIQUID CRYSTAL DISPLAY DEVICE - Disclosed is a liquid-crystal display device comprising a liquid-crystal cell comprising a liquid-crystal layer that aligns vertically to the substrate thereof in a black state, two polarizing elements that are disposed to sandwich the liquid-crystal cell therebetween in a manner that their absorption axes are perpendicular to each other, and retardation films having equivalent optical anisotropy that are disposed between each of the two polarizing elements and the liquid-crystal cell, wherein the retardation films comprise a cellulose acylate and a liquid-crystal compound, and satisfy 30 nm≦Re(550)≦80 nm, 70 nm≦Rth(550)≦140 nm, Re(450)/Re(550)<1 and Re(650)/Re(550)>1. | 04-02-2009 |
20090213311 | Liquid Crystal Display Device - A liquid crystal display device includes: a liquid crystal cell; and a pair of polarizing plates sandwiching the liquid crystal cell and each including a polarizer and a protective film provided on a side of the liquid crystal cell, in which transmission axes of the pair of polarizing plates are orthogonally arranged, wherein Rth(λ) of at least one of the protective films provided on the liquid crystal cell side of the polarizing plates has negative characteristics for ambient temperature, in which Rth(λ) represents a retardation in a thickness direction measured at a wavelength of λ nm. | 08-27-2009 |
20100026932 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device including: a light source; a polarizing film of light source side; a liquid crystal cell; and a polarizing film of display side is provided, the liquid crystal display device further comprising: an optical compensatory sheet disposed between the liquid crystal cell and the polarizing film of the light source side or between the liquid crystal cell and the polarizing film of the display side; and a light-scattering sheet disposed at an outermost surface of the polarizing film of display side, wherein luminance in a normal direction with respect to the liquid crystal display device in a black display state without the light-scattering sheet is 0.3 cd/m | 02-04-2010 |
20100066948 | OPTICAL FILM, POLARIZING PLATE, AND VA-MODE LIQUID CRYSTAL DISPLAY DEVICE - The present invention relates to an optical film produced by stretching a film having a low residual solvent amount in a machine direction followed by heat-treating it at a temperature falling from the glass transition point (Tg) to the melting point (Tm) thereof, which is a cellulose acylate film satisfying the following relations (1) to (6) and containing at least one cellulose acylate and at least one retardation enhancer having an absorption maximum wavelength λmax of from 280 nm to 380 nm: (1) 35 nm≦Re(550)≦75 nm, (2) 85 nm≦Rth(550)≦140 nm, (3) 0 nm<ΔRe(630−450)≦40 nm, (4) −75 nm≦ΔRth(630−450)<0 nm, (5) 2.7≦A+B≦3.0, and (6) B≧0, wherein “A” means a degree of substitution with an acetyl group of said at least one cellulose acylate, and “B” means a degree of substitution with an acyl group having at least 3 carbon atoms thereof. | 03-18-2010 |
20100245729 | GLUCOSE COMPOUND, CELLULOSE COMPOSITION, CELLULOSE FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE - A glucose compound represented by Formula (I): | 09-30-2010 |
20100245744 | CELLULOSE COMPOSITION, OPTICAL FILM, RETARDATION SHEET, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE - A cellulose composition, containing:
| 09-30-2010 |
20110001904 | CELLULOSE ESTER FILM, POLARIZER AND LIQUID CRYSTAL DISPLAY DEVICE - A cellulose ester film comprising at least one polycondensate ester that comprises a dicarboxylic acid residue mixture having an average carbon number of from 5.5 to 10.0 and comprising an aromatic dicarboxylic acid residue and an aliphatic dicarboxylic acid residue, and an aliphatic diol residue having an average carbon number of from 2.5 to 7.0. | 01-06-2011 |
20110039986 | CELLULOSE ACYLATE FILM, METHOD FOR PRODUCING SAME, POLARIZER AND LIQUID CRYSTAL DISPLAY DEVICE - A cellulose acylate film is produced by casting a solution comprising a cellulose acylate resin and a partially ring-opened, styrene/maleic anhydride copolymer. The produced film has improved wet heat durability and low haze. | 02-17-2011 |
20110141429 | CELLULOSE ACYLATE FILM, METHOD FOR PRODUCING CELLULOSE ACYLATE FILM, POLARIZER AND LIQUID CRYSTAL DISPLAY DEVICE - A cellulose acylate film including a cellulose acylate and a sugar ester compound, which is stretched at (Tg−5° C.) to (Tg+10° C.) while as yet not heated at all at (Tg−5° C.) or higher and which has a total haze of at most 1.0% and an internal haze of at most 0.1%, wherein Tg means the glass transition temperature (unit: ° C.) of the cellulose acylate film. | 06-16-2011 |
20110193260 | CELLULOSE ACETATE FILM AND METHOD FOR PRODUCING IT, POLARIZER AND LIQUID CRYSTAL DISPLAY DEVICE - A method for producing a cellulose acetate film including casting a dope containing a cellulose acetate having a total substitution degree of from 2.0 to 2.7 and a solvent on a support, and peeling away the obtained dope film from the support. | 08-11-2011 |
20120229734 | OPTICAL FILM, OPTICAL COMPENSATION FILM, POLARIZING PLATE AND LIQUID-CRYSTAL DISPLAY DEVICE - An optical film comprising a transparent support and an optically-anisotropic layer formed of a composition including at least one liquid-crystal compound, wherein the transparent support includes at least one selected from cycloolefin-base homopolymers and copolymers, and the optically-anisotropic layer satisfies the following relation (1): Re(450)/Re(650)<1.25. An optical compensation film including a transparent support, and an optically-anisotropic layer formed of a composition including a liquid-crystal compound, wherein the transparent support includes a polymer having at least either of lactone ring unit or glutaric anhydride unit. | 09-13-2012 |