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| Number | Title | Issue Date |
| 7351454 | Composition for forming liquid crystal alignment layer of liquid crystal display The present invention relates to a liquid crystal alignment layer of a liquid crystal display that can minimize drop blemishes of liquid crystal in the ODF process. The present invention provides a composition of a liquid crystal alignment layer comprising a diamine... | 04/01/2008 |
| 7291442 | Photosensitive polymeric material for WORM optical data storage with two-photon fluorescent readout Image formation via photoinduced fluorescence changes in a polymeric medium with two-photon fluorescence readout of a multi-layer structure. Fluorophore-containing polymers, possessing one or more basic functional groups, underwent protonation in the presence of a p... | 11/06/2007 |
| 7252863 | Rubbing method of liquid crystal display device A rubbing method, i.e., a method of forming an alignment layer, of a liquid crystal display device includes providing a substrate, applying an alignment layer on the substrate, applying a magnetic field to the alignment layer by a magnetic field generator and firing... | 08/07/2007 |
| 7196758 | Method of alignment of liquid crystals comprising exposing an alignment material to an interference pattern A method includes exposing an alignment material to an interference pattern to cause a chemical reaction in the alignment material and exposing the alignment material to a liquid crystal, where the liquid crystal aligns relative to the alignment material based on th... | 03/27/2007 |
| 7122226 | Liquid crystal aligning agent To provide a liquid crystal aligning agent which can provide a liquid crystal display element having a liquid crystal alignment film provided with alignability for liquid crystal molecules by rubbing without fail and having excellent liquid crystal alignability. The... | 10/17/2006 |
| 7074344 | Liquid crystal aligning agent and liquid crystal display element The present invention provides a liquid crystal aligning agent which provides a liquid crystal alignment film having surface anchoring force and pretilt angle development stability by an optical aligning method. The liquid crystal aligning agent comprises a polymer ... | 07/11/2006 |
| 7001708 | Photosensitive polymeric material for worm optical data storage with two-photon fluorescent readout Image formation via photoinduced fluorescence changes in a polymeric medium with two-photon fluorescence readout of a multi-layer structure. Fluorophore-containing polymers, possessing one or more basic functional groups, underwent protonation in the presence of a p... | 02/21/2006 |
| 6943861 | Liquid crystal display device with alignment layer having a relative imidization ratio above 60% A liquid crystal display device having a pair of substrates, at least one of the substrates being transparent, a liquid crystal layer interposed between the pair of substrates, and pixel electrodes and common electrodes and active elements being arranged on at least... | 09/13/2005 |
| 6924348 | Polyamide acid and polyimide, and optical material A polyimide excelling in heat resistance, chemical resistance, water repellency, dielectric characteristics, electrical characteristics, and optical characteristics and a polyamide acid useful as the raw material therefor are provided. Specifically, a polyamide acid... | 08/02/2005 |
| 6831148 | Photoactive polyimides, polyamide acids or esters with side chain photocrosslinkable groups A photoactive polymer from the class of polyimides, polyamide acids and esters thereof comprises as a side-chain a photocrosslinkable group of the general formula (I) wherein the broken line indicates the point of link... | 12/14/2004 |
| 6756089 | Active-matrix liquid crystal display An active-matrix liquid crystal display device having a pair of substrates at least one of which is transparent, a liquid crystal layer disposed between the pair of substrates, a group of electrodes for applying to the liquid crystal layer an electric field substant... | 06/29/2004 |
| 6713135 | Materials for inducing alignment in liquid crystals and liquid crystal displays The present invention provides novel polyimides, poly(amic acids) and poly(amide esters) thereof, and optical alignment layers derived therefrom, for inducing alignment of liquid crystals and liquid crystal displays. The novel compositions comprise side-chain polyme... | 03/30/2004 |
| 6649230 | Photoactive polymers A photoactive polymer of the general formula I: ##STR1## in which: P is a photoactive group which can photoisomerise and/or photodimerise; B represents an aromatic or alicyclic group, or B further represents a nitrogen atom or --CR2 --; ... | 11/18/2003 |
| 6620342 | Narrow composition distribution polyvinylidene fluoride RECLT films, processes, articles of manufacture and compositions The disclosure relates to a reversible, electrically controllable light transmission (RECLT) film, article of manufacture composition, process and product produced by the process, comprising a conductive narrow composition distribution polyvinylidene fluo... | 09/16/2003 |
| 6569502 | Optical compensatory sheet comprising substrate, orientation layer and optically anisotropic layer An optical compensatory sheet comprises a transparent substrate, an orientation layer and an optically anisotropic layer in order. The optically anisotropic layer comprises discotic liquid crystal molecules. The orientation layer comprises a polymer havin... | 05/27/2003 |
| 6340506 | Photocrosslinkable polyimides The invention relates to novel crosslinkable, photoactive polymers from the class of polyimides, polyamide acids and esters thereof, and to their use as orientation layers for liquid crystals and in the construction of unstructured and structured optical ... | 01/22/2002 |
| 6242061 | Materials for inducing alignment in liquid crystals and liquid crystal displays The present invention provides novel polyimide, polyamic acids and esters thereof, and optical alignment layers derived therefrom, for inducing alignment of liquid crystals and liquid crystal displays. The novel compositions comprise side chain polymers o... | 06/05/2001 |
| 6242060 | Active-matrix liquid crystal display An active-matrix liquid crystal display device having a pair of substrates at least one of which is transparent, a liquid crystal layer disposed between the pair of substrates, a group of electrodes for applying to the liquid crystal layer an electric fie... | 06/05/2001 |
| 6238753 | Polyimide angularity enhancement layer An angularity enhancement layer in a liquid crystal display, which display comprises a liquid crystal cell, wherein the angularity enhancement layer includes a negative birefringent polyimide layer comprising a plurality of structural units having pendant... | 05/29/2001 |
| 6238752 | Diamino compounds, polyamic acids, polyimides, liquid crystal aligning films using said polyimide films and liquid crystal display devices using said aligning films This invention relates to a diamino compound represented by the formula [1]: ##STR1## in which G1 is a trivalent organic group of 2-20 carbon atoms, G2 is independently a single bond, --COO--, --OCO--, --NHCO--, --CONH--, --O--,... | 05/29/2001 |
| 6221444 | Liquid crystal device A liquid crystal device having a good bend alignment characteristic is provided by using an alignment film having an alignment power of aligning nematic liquid crystal molecules in a bend alignment state under no voltage application and providing a retard... | 04/24/2001 |
| 6143380 | Process and materials for aligning liquid crystals and liquid crystal displays The present invention provides a process for preparing an optical alignment layer for aligning liquid crystals and liquid crystal displays comprising exposing polyimide layers with polarized light. The invention further describes optical alignment layers,... | 11/07/2000 |
| 6074709 | Polyimide angularity enhancement layer An angularity enhancement layer in a liquid crystal display, which display comprises a liquid crystal cell, wherein the angularity enhancement layer includes a negative birefringent polyimide layer comprising a plurality of structural units having pendant... | 06/13/2000 |
| 6066690 | Heat-vulcanizable rubber composition This application provides a heat vulcanizable rubber composition which prevents scorch in a molding process for the production of vulcanized rubber molded articles, and has good storage stability when the composition is formulated in the form of a one pac... | 05/23/2000 |
| 5858273 | Liquid crystal device A liquid crystal device is constituted by a pair of transparent substrates each having thereon a transparent electrode, and a chiral smectic liquid crystal composition disposed between the substrates so as to assume at least two optically stable states. A... | 01/12/1999 |
| 5858274 | Treating agent for liquid crystal alignment A treating agent for liquid crystal alignment useful for formation of a liquid crystal alignment film obtained by coating a film on a substrate equipped with transparent electrodes, baking the film, and subjecting the film surface to a rubbing treatment, ... | 01/12/1999 |
| 5858269 | Liquid crystal device and liquid crystal apparatus A liquid crystal device is constituted by a pair of substrates each having thereon at least an electrode and an alignment control layer, and a liquid crystal composition disposed between the substrates. At least one of the alignment control layers has a t... | 01/12/1999 |
| 5856431 | Process and materials for inducing pre-tilt in liquid crystals and liquid crystal displays A process for inducing pre-tilt in alignment of a liquid crystal medium comprising exposing at least one optical alignment layer, comprising anisotropically absorbing molecules and hydrophobic moieties, to polarized light; the polarized light having a wav... | 01/05/1999 |
| 5750214 | Liquid crystal device A liquid crystal device is constituted by a pair of substrates at least one of which is provided with an alignment control film, and a liquid crystal composition disposed between the substrates and contacting the alignment control film. The alignment cont... | 05/12/1998 |
| 5686019 | Liquid crystal device and liquid crystal apparatus A liquid crystal device is constituted by a first substrate and a second substrate disposed opposite to each other, and a liquid crystal lacking cholesteric phase disposed between the first and second substrates. The first substrate has a surface contacti... | 11/11/1997 |
| 5686018 | Nematic liquid crystal composition A nematic liquid crystal composition having a low viscosity is provided, which composition is obtained by mixing two kinds of liquid crystal compositions having a difference of evaporation heats of 800 cal/mol or more and forming no complex; and by notabl... | 11/11/1997 |
| 5674575 | Liquid crystal aligning film and liquid crystal display device using it The present invention provides a liquid crystal aligning film containing as the principal constituent a polyimide resin, which comprises two or more diamines, and having a stripping load of 4.0 gf or more measured by particular conditions, and a liquid cr... | 10/07/1997 |
| 5670609 | Polyimide films from pyromellitic dianhydride and 2-2'-bis(perfluoroalkoxy)benzidines as alignment layers for liquid crystal displays A polyimide alignment film based on pyromellitic dianhydride and a 2,2'-bis(perfluoroalkoxy)benzidine, as major components, for use in liquid crystal display devices.... | 09/23/1997 |
| 5637359 | Plastic substrate liquid crystal display device, method of making, and product produced by the method There is provided a plastic liquid crystal display device in which an aligning film processing can be carried out at 150 to 180° C. and which can have optical characteristics comparable to those of the conventional glass substrate liquid crystal display ... | 06/10/1997 |
| 5578241 | Liquid crystal display The invention relates to a liquid crystal display element which contains an electrically switchable, dielectrically positive twisted nematic liquid crystal layer between two substrates which together with a frame form a cell, and two layers with alignment... | 11/26/1996 |
| 5545444 | Diamino compounds and liquid crystal aligning films The present invention is to provide new diamino compounds useful for raw materials for production of liquid crystal aligning films that have excellent aligning properties and uniform and high pretilt angles over the whole display surface of wide substrate... | 08/13/1996 |
| 5520845 | Poly(2,6-piperazinedione) alignment layer for liquid crystal displays A poly(2,6-piperazinedione) liquid crystal alignment film providing high voltage holding ratio and high tilt angle when used in active matrix and super twisted nematic liquid crystal displays.... | 05/28/1996 |
| 5432256 | Liquid crystal aligning films and liquid crystal display devices The present invention provides a liquid crystal aligning film having a reduced after image and a good liquid crystal aligning property caused by a rubbing treatment of a thin film consisting of organics, and its liquid crystal display device. Specifically... | 07/11/1995 |
| 5426525 | Ferroelectric smectic liquid crystal device A liquid crystal device is constituted by a pair of substrates; an alignment film comprising a polyimide which has a fluorine-containing substituent in its diamine-originated moiety, disposed on at least one of the pair of substrates and subjected to an a... | 06/20/1995 |
| 5422419 | Agent for alignment treatment for a liquid crystal cell An agent for alignment treatment for a liquid crystal cell, which comprises an organic solvent-soluble polyimide obtained by reacting and polymerizing a tetracarboxylic acid component with a diamine component and a dicarboxylic acid component containing a... | 06/06/1995 |
