With Viewing Layer Of Specified Composition Patents (Class 428/1.3)
  • Patent number: 7767109
    Abstract: A liquid crystal (LC) medium for polymerization alignment process includes at least a set of LC molecules, at least a set of reactive monomers, and at least one inhibitor at a concentration in a range of 0.01-1% wt of the reactive monomer. The inhibitor quenches polymerization of radicals of the reactive monomers, which is triggered by light or heat before the polymerization alignment process. Therefore influence on the reactive monomers before the polymerization alignment process is reduced and stability of the LC medium is improved.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: August 3, 2010
    Assignee: AU Optronics Corp.
    Inventors: Chia-Hsuan Pai, Chung-Ching Hsieh, Te-Sheng Chen, Sugiura Norio
  • Publication number: 20100188590
    Abstract: Provided is a phase plate having high phase compensation effect with low manufacturing cost, which is a device including a substrate and a thin film including laminated thin films of two or more types having different refractive indexes. The device performs phase compensation for an oblique incident polarized light ray, by using interference due to a high refractive index thin film and a low refractive index thin film.
    Type: Application
    Filed: January 29, 2010
    Publication date: July 29, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yutaka Yamaguchi
  • Patent number: 7763181
    Abstract: A liquid crystal display showing a high contrast and reduced in color shift depending on the viewing angle is provided. The liquid crystal display device comprises a liquid crystal cell having a retardation value Re1(400) at 400 nm and a retardation value Re1(550) at 500 nm in the black state; and at least one layer of optically anisotropic layer formed of a composition comprising at least one species of liquid crystalline compound, having a retardations value Re2(400) at 400 nm and a retardation value Re2(550) at 550 nm, wherein Re2(400) and Re2(550) of said optically anisotropic layer, and retardations values Re1(400) and Re1(550) satisfy the relational expression (1) below: 0.9??2/?1?1.1??Relational Expression (1) where, ?1=Re1(400)/Re1(550) and ?2=Re2(400)/Re2(550).
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: July 27, 2010
    Assignee: Fujifilm Corporation
    Inventors: Akira Ikeda, Michio Nagai, Hideyuki Nishikawa
  • Patent number: 7758773
    Abstract: This disclosure outlines a new method of modifying the properties of existing liquid crystals by doping them with ferroelectric micro- and nanoparticles. We show that this approach, in contrast to the traditional time consuming and expensive chemical synthetic methods, enriches and enhances the electro-optical performance of many liquid crystal materials. We demonstrate that by changing the concentration and type of ferroelectric particles the physical properties of the nematic, smectic, and cholesteric liquid crystal materials can be changed, including the dielectric constants, the birefringence, the phase transition temperatures, and even the order parameter. We also demonstrate the performance of these new materials in various devices, including displays, light modulators, and beam steering devices.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: July 20, 2010
    Assignee: Kent State University
    Inventors: John L. West, Chae Il Cheon, Anatoliy V. Glushchenko, Yuriy Reznikov, Fenghua Li
  • Patent number: 7758930
    Abstract: There are provided: a curable resin composition having a high exposure sensitivity and a good developing property, and thereby capable of forming an accurate and precise pattern; a liquid crystal panel substrate on which a protective film for covering a color layer or spacers for a liquid crystal layer, by using the curable resin composition, hardly causing a color irregularity and contrast irregularity; and a liquid crystal panel using the liquid crystal panel substrate and having a superior display quality. The curable resin composition of the present invention comprises: a copolymer (a) having a molecular structure in which a constitutional unit including an acidic functional unit and a constitutional unit including a photocurable functional group are linked at least; a photopolymerization initiator (h) having a tertiary amine structure; and a photocurable compound (c) having at least one acidic functional group and at least three photocurable functional groups.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: July 20, 2010
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Shinji Hayashi, Shunsuke Sega, Hiromu Taguchi, Mitsutaka Hasegawa
  • Patent number: 7755728
    Abstract: An optically anisotropic film comprising a liquid crystal compound forming a nematic phase or smectic A phase, the liquid crystalline phase satisfying the following inequality: ?n(450 nm)/?n(550 nm)<1.0 in which each ?n (?) represents an intrinsic birefringence at a wavelength of ?, wherein the optically anisotropic film (A) has an absolute in-plane retardation (Re) of 40 nm or less and a retardation in the thickness direction (Rth) of ?10 nm or less.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: July 13, 2010
    Assignee: Fujifilm Corporation
    Inventors: Mitsuyoshi Ichihashi, Hideyuki Nishikawa
  • Patent number: 7749577
    Abstract: Provided are multilayer laminates having one or more layers comprising twisted nematic liquid crystals and one or more layers of a polymeric sheet comprising a polymer with a modulus between 20,000 psi (138 MPa) and 100,000 psi (690 MPa). The twisted nematic liquid crystal layers reflect infrared radiation. Thus, the multilayer laminates are useful to reduce the transmission of infrared energy. For example, in some embodiments the multilayer laminates are useful as windows to reduce energy consumption necessary to cool the interior of a structure such as an automobile or building. Preferably, the multilayer laminates retain the beneficial properties of safety glass. The multilayer laminates may include additional layers such as infrared absorbing layers, half wave plates, and the like, to minimize the transmission of infrared energy. The multilayer laminates may also include further additional layers such as polymeric films, polymeric sheets, rigid sheets, and the like.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: July 6, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Marc B. Goldfinger, Richard A. Hayes, Lee A. Silverman
  • Patent number: 7749411
    Abstract: A method of producing an optical film comprising the step of: stretching a continuous resinous film by apply tension to a transverse direction of the resinous film while conveying the resinous film, wherein the stretching is carried out with a stretching apparatus comprising right and left edge holding devices which hold right and left edges of the resinous film; and, the right and left edge holding devices of the stretching apparatus each independently controls right and left edge holding distances of the resinous film so that a slow axis of the resinous film is substantially perpendicular or substantially parallel to a film conveying direction, provided that the edge holding distance is defined as a distance between an initiation position and a cessation position of holding of the edge of the resinous film.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: July 6, 2010
    Assignee: Konica Minolta Opto, Inc.
    Inventor: Katsusuke Nagashima
  • Publication number: 20100165223
    Abstract: A liquid crystal includes about 50 wt % to about 65 wt % of a negative compound material, and about 40 wt % to about 50 wt % of a neutral compound material. A liquid crystal display apparatus comprises a first substrate having a pixel area, a second substrate facing the first substrate, and a plurality of liquid crystals disposed between the first substrate and the second substrate, wherein each liquid crystal comprises about 50 wt % to about 65 wt % of a negative compound material having a dielectric anisotropy of a negative polarity, and about 40 wt % to about 50 wt % of a neutral compound material.
    Type: Application
    Filed: December 30, 2008
    Publication date: July 1, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seon-Ah Cho, Jang-Hyun Kim, Seong-Nam Lee, Jeong-Uk Heo
  • Patent number: 7744970
    Abstract: Provided are multilayer laminates having one or more layers comprising twisted nematic liquid crystals and one or more layers of a polymeric sheet comprising a polymer with a modulus of 20,000 psi (138 MPa) or less. The twisted nematic liquid crystal layers reflect infrared radiation. Thus, the multilayer laminates are useful to reduce the transmission of infrared energy. For example, in some embodiments the multilayer laminates are useful as windows to reduce energy consumption necessary to cool the interior of a structure such as an automobile or building. Preferably, the multilayer laminates retain the beneficial properties of safety glass. The multilayer laminates may include additional layers such as infrared absorbing layers, half wave plates, and the like, to minimize the transmission of infrared energy. The multilayer laminates may also include further additional layers such as polymeric films, polymeric sheets, rigid sheets, and the like.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: June 29, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Lee A. Silverman, Marc B. Goldfinger, Richard A. Hayes
  • Publication number: 20100149470
    Abstract: Provided is a film that is made of a propylene-based copolymer selected from among propylene-based random copolymers and propylene-based block copolymers, the film being useful as a precursor film for the production of a retardation film by stretching. The propylene-based copolymer forming the film contains crystals containing smectic crystals, wherein the percentage of smectic crystals to all the crystals of the propylene-based copolymer. The film has an in-plane retardation of 50 nm or less and a thickness falling within the range of 30 to 200 ?m. The propylene-based copolymer is a copolymer that has a parameter (A) falling within the range of from 0.0007 to 0.1, the parameter (A) being calculated from Formula (1) defined for a stress-strain curve produced as a result of stretching a film made of the polymer at a tensile rate of 100 mm/minute at a temperature at which a stress of 0.8±0.
    Type: Application
    Filed: September 25, 2007
    Publication date: June 17, 2010
    Inventors: Kyoko Hino, Toshihiko Suzuki, Hiroaki Takahata, Takashi Sakurai
  • Patent number: 7736708
    Abstract: The present invention relates to a micropattern retardation element requiring no stretch processing and no extremely high positioning accuracy in cutting films, and the like, and having the retardation region controlled in width of a micron unit, and a producing method therefore. Said micropattern retardation element can be obtained by forming a liquid crystalline or non liquid crystalline polymer thin film layer having photoactive groups, on a substrate, and then, after orientation treatment in a micropattern form, forming a birefringence layer so as to contact with said polymer thin film layer, so that birefringence molecules of said birefringence layer are oriented according to orientation of photoactive groups in said thin film. Said retardation element is used in a three-dimensional display, and the like.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: June 15, 2010
    Assignees: National Institute Of Advanced Industrial Science and Technology, Nippon Kayaku Kabushiki Kaisha
    Inventors: Daisaku Matsunaga, Masanori Hashimoto, Christian Ruslim, Takashi Tamaki, Kunihiro Ichimura
  • Patent number: 7732024
    Abstract: A homeotropic alignment liquid crystal film is provided with a liquid crystalline substance containing a side chain liquid crystalline compound having an oxetanyl group, as a constituent, aligned homeotropically on an alignment substrate while being in a liquid crystal state and fixed in the homeotropic alignment by allowing the oxetanyl group to react. Thus, the homeotropic alignment liquid crystal film can be stably produced without necessitating a complicated step such as light irradiation under an inert gas atmosphere and is excellent in alignment retainability after being fixed in the homeotropic alignment and in mechanical strength.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: June 8, 2010
    Assignee: Nippon Oil Corporation
    Inventors: Hitoshi Mazaki, Takashi Seki, Takuya Matsumoto, Tetsuya Uesaka, Akio Mutou
  • Publication number: 20100136263
    Abstract: A liquid crystal display device comprises a color filter substrate and an array substrate. An optical compensation film is disposed on the color filter substrate and/or the array substrate, wherein the optical compensation film comprises a polyimide, comprising the following formula: wherein n is an integer greater than 1, and wherein when A is cyclo-aliphatic compound, B is aromatic compound or cyclo-aliphatic compound, and when A is aromatic compound, B is cyclo-aliphatic compound.
    Type: Application
    Filed: January 29, 2010
    Publication date: June 3, 2010
    Inventors: Chyi-Ming Leu, Horng-Long Tyan, Tzong-Ming Lee
  • Patent number: 7727600
    Abstract: A liquid crystal display device comprises a color filter substrate and an array substrate. An optical compensation film is disposed on the color filter substrate and/or the array substrate, wherein the optical compensation film comprises a polyimide, comprising the following formula: wherein n is an integer greater than 1, and wherein when A is cyclo-aliphatic compound, B is aromatic compound or cyclo-aliphatic compound, and when A is aromatic compound, B is cyclo-aliphatic compound.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: June 1, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Chyi-Ming Leu, Horng-Long Tyan, Tzong-Ming Lee
  • Patent number: 7722932
    Abstract: Provided herein are one-solution type thermosetting resin compositions that may be useful to form protective films for color filters used in liquid crystal displays or image sensors. According to some embodiments, the resin compositions may include a self-curable copolymer and an epoxy compound. The protective films may exhibit desirable flatness, adhesiveness, transmittance, heat resistance and chemical resistance. Also provided are methods of forming a film on a substrate, and substrates having a film formed thereon. In addition, provided herein are color filters including a film formed from a composition according to an embodiment of the invention, and liquid crystal displays and image sensors including such color filters.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: May 25, 2010
    Assignee: Cheil Industries, Inc.
    Inventors: O Bum Kwon, Hyun Moon Choi, Sun Yul Lee, Kil Sung Lee
  • Patent number: 7713597
    Abstract: A durable optical film or element includes a polymerized structure having a microstructured surface and a plurality of surface modified colloidal nanoparticles of silica, zirconia, or mixtures thereof. Display devices including the durable microstructured film are also described.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: May 11, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Clinton L. Jones, Brant U. Kolb, Emily S. Goenner, John T. Brady, Christopher A. Haak
  • Patent number: 7713595
    Abstract: A method of forming an optical compensation film includes coating one or more first layers and one or more second layers onto a carrier substrate, and stretching the first layers and second layers simultaneously. The one or more first layers include a polymer having an out-of-plane birefringence (?nth) not more negative than ?0.005 and not more positive than +0.005, and the one or more second layers include a polymer having an out-of-plane birefringence more negative than ?0.005 or more positive than +0.005. The overall in-plane retardation (Rin) of the optical compensation film is greater than 20 nm and the out-of-plane retardation (Rth) of the optical compensation film is more negative than ?20 nm or more positive than +20 nm.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: May 11, 2010
    Assignee: Nitto Denko Corporation
    Inventors: Jehuda Greener, James F. Elman, Jon A. Hammerschmidt, Elizabeth K. Priebe
  • Patent number: 7704569
    Abstract: A twist-obliquely oriented liquid crystal layer and a twist-obliquely oriented film is formed by forming an alignment layer, on a substrate, containing at least one selected from a glassy macromolecule and a silane coupling agent, performing a rubbing treatment on the alignment layer, and then applying a liquid crystal coating solution containing a chiral agent and a photopolymerizable liquid crystal composition.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: April 27, 2010
    Assignee: Nitto Denko Corporation
    Inventor: Ikuo Kawamoto
  • Patent number: 7704570
    Abstract: A polarizing plate includes two transparent supports A and B; and a polarizer sandwiched between the two transparent supports A and B; wherein (i) the transparent support A is a stretched cellulose ester film (a) which contains a non-phosphoric acid ester plasticizer and substantially does not contain a phosphoric acid ester plasticizer, and wherein (ii) the transparent support B is a stretched cellulose ester film (b) which has a retardation value R0 of from 0 nm to 10 nm and a retardation value Rt of from ?30 nm to 20 nm, and the retardation value R0 and the retardation value Rt are defined by the following formulas (I) and (II): Ro=(nx?ny)×d??Formula (I): Rt={(nx+ny)/2?nz}×d.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: April 27, 2010
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Takashi Takebe, Kunio Shimizu, Shigeki Oka
  • Patent number: 7704568
    Abstract: The present invention relates to photo-tunable dopant compositions comprising a photo-reactive chiral compound capable of undergoing a photochemical reaction resulting in the loss of chirality, and a triplet sensitizer. The present invention also relates to a display comprising a substrate, a liquid crystalline layer thereon, wherein the liquid crystalline layer comprises a nematic host, at least one chiral dopant, a photo-reacted compound, and a triplet sensitizer, and at least one transparent conductive layer. The present invention also relates to a method of tuning a cholesteric liquid crystal material comprising providing at least one mesogenic compound, at least one triplet sensitizer, and at least one photo-reactive chiral compound; combining the at least one mesogenic compound, at least one triplet sensitizer, and at least one photo-reactive chiral compound to form a mixture; and irradiating the mixture for a period of time.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: April 27, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Deepak Shukla, Krishnan Chari
  • Patent number: 7700168
    Abstract: A liquid crystal display element includes two substrates each covered with a transparent conducting layer and having a liquid crystal layer therebetween, in which the liquid crystal layer is a pure nematic electrooptical matrix or sensitized electrooptical mixture with nanoobjects and in which the conducting layers have been treated with a surface electromagnetic wave. The present invention increases a response speed of the liquid crystal display element due to a decrease of the switching time of electrooptical liquid crystal layer up to 1 ms or less; decreases the number of layers in the liquid crystal display element because an alignment layer is absent, and thus increases the transparency of element; decreases a supply voltage amplitude; and increases a possibility to develop different configurations of the liquid crystal display element.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: April 20, 2010
    Assignees: Samsung Electronics Co., Ltd.
    Inventors: Natalia Vladimirovna Kamanina, Petr Yakovlevich Vasilyev
  • Patent number: 7697098
    Abstract: It is an object of the present invention to suppress light leakage in a dark state which is generated by rubbing treatment. A liquid crystal material containing an ultraviolet curable liquid crystalline monomer at a concentration of more than 0 wt % and not more than 1.0 wt % is used for a liquid crystal layer, and the liquid crystal layer is irradiated with ultraviolet rays. By applying such a liquid crystal layer to a liquid crystal display device, light leakage in a dark state can be suppressed, and the black display can be improved. Therefore, a liquid crystal display device with an excellent contrast and high display quality can be obtained.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: April 13, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Daisuke Kubota, Takeshi Nishi, Tetsuji Ishitani
  • Patent number: 7695782
    Abstract: An optical laminate comprising an anti-reflection film 1, polarizing film 2, adhesive layer 3, glass cell for liquid crystal display 4, adhesive layer 5 and polarizing film 6 laminated sequentially, wherein the ratio (B/A) of the maximum value B of the loss tangent of the adhesive layer 5 to the maximum value A of the loss tangent of the adhesive layer 3 is 1.1 or more. The maximum value of the loss tangent means the maximum value of loss modulus (E?) storage modulus (E?) (=tan ?), each measured by heating the adhesive layer in a temperature range of ?70° C. to 200° C. at a temperature rising rate of 4° C./min and a frequency of 1 Hz.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: April 13, 2010
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Ryu Takeko, Akira Kawamura, Atsushi Higo
  • Patent number: 7691458
    Abstract: Numerous embodiments of a carrier substrate having thermochromatic materials are described. In one embodiment of the present invention, a carrier substrate has a visible surface, and a thermochromatic material is disposed near the carrier substrate. The thermochromatic material produces a visual change of the visible surface when an activation temperature of the thermochromatic material is reached.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: April 6, 2010
    Assignee: Intel Corporation
    Inventors: Gary A. Brist, Patrick D. Boyd
  • Patent number: 7674506
    Abstract: There is provided a direct backlight type liquid crystal display device having high light diffusability, keeping excellent color and having high brightness.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: March 9, 2010
    Assignee: Teijin Chemicals, Ltd.
    Inventors: Isao Sogo, Masato Ando, Mitsuhiro Takeo, Koji Maeda, Masanao Jinno
  • Patent number: 7670502
    Abstract: The invention is directed to liquid crystal compositions for use in bistable liquid crystal devices and to bistable liquid crystal devices containing said liquid crystal compositions. The liquid crystal composition comprises a component (?) said component (?) containing one or more compounds having a phenyl ring of formula A Whereby XA is F, CI, SF5, NCS or a C1 to C8 alkanyl, alkenyl or alkoxy radical substituted with at least one F atom; and LA is H or F.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: March 2, 2010
    Assignee: Merck Patent GmbH
    Inventors: Matthew Francis, Marc John Goulding, John Clifford Jones, Stephen Beldon, Peer Kirsch
  • Publication number: 20100047483
    Abstract: The present invention provides a birefringent film having an index ellipsoid satisfying a relationship of nz>nx>ny, and having thinness and light weight, which can be relatively easily produced. The birefringent film of the present invention contains an acenaphtho[1,2-b]quinoxaline derivative represented by the following general formula (I), and an index ellipsoid of the film satisfies a relationship of nz>nx>ny. Here, in the formula (I), X, Y, and Z each independently represent a halogen atom, an alkoxy group, an —R group, an —OM group, a —COOM group, an —OCOR group, an —NHCOR group, a —CONHR group, an —NH2 group, an —NO2 group, a —CF3 group, a —CN group, an —OCN group, an —SCN group, an —SM group, and a —PO3M group; M represents a counterion; R represents hydrocarbon; k, l, m, and n represent the number of substitutions, k is an integer of 1 to 4, and l, m and n are each independently an integer of 0 to 3.
    Type: Application
    Filed: March 3, 2008
    Publication date: February 25, 2010
    Applicant: NITTO DENKO CORPORATION
    Inventor: Shoichi Matsuda
  • Patent number: 7666482
    Abstract: A retardation film manufactured as a long roll film having a slow axis in a lateral direction of the long roll film, wherein an elastic modulus in an in-plane slow axis direction ?s and an elastic modulus in an in-plane fast axis direction ?f meet Condition (1), the in-plane fast axis direction being perpendicular to the in-plane slow axis direction: 1.26??s/?f?2.60??Condition (1).
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: February 23, 2010
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Hiroki Umeda, Noriyasu Kuzuhara
  • Patent number: 7662444
    Abstract: A liquid crystal microcapsule, comprising a liquid crystal and a polyurea film encapsulating the liquid crystal, wherein at least one of an alkyl group and a fluoroalkyl group is bonded directly or indirectly via a urethane bond to the polyurea. A method of producing a liquid crystal microcapsule, comprising: forming a polyurea and the film thereof by allowing an aligner, which is a compound having a hydroxyl group and at least one of an alkyl group and a fluoroalkyl group, to react with a polyisocyanate, a polyamine, and water; and encapsulating a liquid crystal with the film. A liquid crystal display device using the liquid crystal microcapsule.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: February 16, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Naoki Hiji, Shigeru Yamamoto
  • Publication number: 20100032672
    Abstract: A bonding pad includes a metal layer, a gate insulting layer, a passivation layer, and a transparent conductive layer. The metal layer has a first metal pattern and a second metal pattern which are separated from each other. The gate insulating layer covers the metal layer, and the passivation layer covers the gate insulating layer. The gate insulating layer and the passivation layer have a first contact opening and a second contact opening respectively exposing a portion of the first metal pattern and a portion of the second metal pattern. The transparent conductive layer covers the passivation layer and fills the first and second contact openings. The transparent conductive layer on the second contact opening serves as a testing-probe contact area. The present invention also provides an active device array substrate having the bonding pad.
    Type: Application
    Filed: November 30, 2008
    Publication date: February 11, 2010
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventor: Shih-Chieh Lo
  • Publication number: 20100033657
    Abstract: A liquid crystal display is presented. The liquid crystal display includes: a first substrate; a pixel electrode formed on the first substrate; a first alignment layer formed on the pixel electrode; a second substrate facing the first substrate; a common electrode formed on the second substrate; a second alignment layer formed on the common electrode; a liquid crystal layer formed between the first alignment layer and the second alignment layer; and a light absorption layer formed between the first substrate and the first alignment layer, or the second substrate and the second alignment layer, wherein the light absorption layer absorbs light having a UV wavelength between about 280 nm and about 450 nm.
    Type: Application
    Filed: May 21, 2009
    Publication date: February 11, 2010
    Inventors: Nak-Cho Choi, Min Kang, Hoon Kang
  • Patent number: 7648645
    Abstract: A pre-polymer/liquid crystal composition is disclosed and includes, a liquid crystal component, a photo polymerization initiator, and a polymer precursor component. The polymer precursor component includes at least, a silane monomer, reactive (meth)acryloxy monomer or oligomer, and an ester, urethane, or (meth)acrylate based polymer or oligomer, bearing one or more reactive (meth)acrylate groups. Methods of forming a bistable electro-optical device are also disclosed.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: January 19, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Ralph R. Roberts, Amy J. Hite, Jane K. Wardhana, Kevin M. Lewandowski
  • Patent number: 7641946
    Abstract: An adhesive film prevents static charge on peeling generated when removed from an adherend and also improves adhesion between a base material and an adhesive layer, where an under coat layer containing an organometallic is formed on the base material and then an adhesive layer is formed on the base material. Alternatively, an adhesive film showing high adhesion with a glass substrate, and including an antistatic layer, which prevents static charge on peeling generated when the surface protective film is removed, and improves adhesion between a base material and an adhesive layer, where the adhesive film includes a base material, an adhesive layer made of a water dispersible adhesive including, and an antistatic layer, containing a water soluble or water dispersible conductive material, interposed between them, and the adhesive film is stuck onto an image display device.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: January 5, 2010
    Assignee: Nitto Denko Corporation
    Inventors: Mika Kanamaru, Kenichi Okada, Toshitaka Takahashi
  • Publication number: 20090324855
    Abstract: A liquid crystal display (LCD) panel comprising a bottom substrate, a top substrate and a liquid crystal (LC) layer interposed therebetween is provided. The LC layer comprises numerous LC compounds and a stabilization-aligned polymer polymerized by numerous polymerizable monomers and formed on at least one surface of the top substrate or the bottom substrate. These LC compounds comprise a first LC compound, a second LC compound and a third LC compound, wherein the third LC compound is selected from the group consisting of a compound 3A, a compound 3B, a compound 3C and a combination thereof.
    Type: Application
    Filed: May 5, 2009
    Publication date: December 31, 2009
    Applicant: AU OPTRONICS CORP.
    Inventors: Chung-Ching HSIEH, Yang-Chu LIN, Chia-Hsuan PAI, Te-Sheng CHEN, Norio SUGIURA
  • Publication number: 20090303697
    Abstract: An optical sheet, a backlight unit including the optical sheet, and a liquid crystal display including the backlight unit are disclosed. The optical sheet includes a base film, a base portion on the base film, and a plurality of projections on the base portion. The base portion includes a first area. The projections include a plurality of peaks and a plurality of valleys. The first area is a section including a first side adjoining to one of the valleys and a second side corresponding to a height of the base portion. A length of the first side is substantially 2 ?m to 10 ?m. The first area has one first bead or 2 to 5 first beads.
    Type: Application
    Filed: December 17, 2008
    Publication date: December 10, 2009
    Inventors: Yongsu KIM, Cheol Yoon
  • Patent number: 7630031
    Abstract: 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 ?m.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: December 8, 2009
    Assignee: FUJIFILM Corporation
    Inventor: Yoji Ito
  • Patent number: 7625612
    Abstract: There is provided a retardation film including a stretched film of a polymer film having an absolute value of photoelastic coefficient (m2/N) of 50×10?12 or less measured by using light of a wavelength of 550 nm at 23° C., which satisfies the following expressions (1) and (2): Re[450]<Re[550]<Re[650]??(1) Rth[550]<Re[550]??(2). In the expressions (1) and (2): Re[450], Re[550], and Re[650] respectively represent in-plane retardation values measured by using light of wavelengths of 450 nm, 550 nm, and 650 nm at 23° C.; and Rth[550] represents a thickness direction retardation value measured by using light of a wavelength of 550 nm at 23° C.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: December 1, 2009
    Assignee: Nitto Denko Corporation
    Inventors: Yutaka Ohmori, Michie Sakamoto, Hisae Sugihara, Akinori Izaki
  • Patent number: 7622166
    Abstract: An optical element and a process for producing the optical element are provided. The optical element includes a light transparent substrate and a first birefringence layer provided on the substrate. The first birefringence layer includes a polymerizable liquid crystal having rodlike molecules and a coupling agent and/or a surfactant that homeotropically align the polymerizable liquid crystal to form a crosslinked polymer in a state of homeotropic alignment. The crosslinked polymer has a three-dimensionally crosslinked structure wherein the polymerizable liquid crystal having rodlike molecules holds homeotropic alignment.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: November 24, 2009
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Koji Ishizaki, Kanami Ikegami
  • Patent number: 7622164
    Abstract: Microstructured optical films, assemblies of films including at least one microstructured optical film, and (e.g. illuminated) display devices including a single microstructured optical film or assembly.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: November 24, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Clinton L. Jones, Brant U. Kolb, David B. Olson, Emily S. Goenner, Shandon D. Hart, John T. Cowher
  • Patent number: 7622165
    Abstract: Disclosed are a liquid-crystalline medium, which contains one or more compounds of formula I their use for electro-optical purposes, to displays containing this medium, and to novel LC compounds for use in LC media and displays.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: November 24, 2009
    Assignee: Merck Patent GmbH
    Inventors: Michael Wittek, Lars Lietzau
  • Patent number: 7622055
    Abstract: A polarizing plate is provided that has excellent polarization properties and high surface hardness and can have a reduced thickness. The polarizing plate includes a polarizer and a cured resin layer. The cured resin layer is formed directly on at least one surface of the polarizer. The cured resin layer is formed of a solventless photocurable composition containing the following components (A), (B), and (C): (A) at least one of a polyfunctional acrylic monomer and a polyfunctional methacrylic monomer; (B) a photocurable prepolymer; and (C) a photopolymerization initiator.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: November 24, 2009
    Assignee: Nitto Denko Corporation
    Inventors: Shinya Nakano, Kazutaka Hara, Takehito Fuchida, Naoto Ooe
  • Patent number: 7615325
    Abstract: This invention relates to compositions and an assembly process for the manufacture of liquid crystal displays. The assembly process is especially advantageous because it can be easily scalable to roll-to-roll continuous manufacturing of liquid crystal displays. The invention is directed to a photoalignable top-sealing composition for top-sealing a liquid crystal display cell.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: November 10, 2009
    Assignee: Sipix Imaging, Inc.
    Inventors: Rong-Chang Liang, HongMei Zang, Haiyan Gu
  • Patent number: 7615261
    Abstract: An LCD with an improved image quality and a method of fabricating the same are provided. After a rubbing process as a primary alignment process is performed on an alignment layer, a pre-treatment is performed on the alignment layer before a light irradiation as a secondary alignment process. Thus, the light leakage at a stepped portion may be prevented and the contrast ratio can be improved. Consequently, a high quality image may be obtained and the reliability of products can also be enhanced. After a thermal treatment as the pre-treatment or during the thermal treatment, a light irradiation as a secondary alignment process is performed, or the light irradiation as the secondary alignment process is performed under an oxygen atmosphere, thereby enhancing the alignment process efficiency during the light irradiation. Further, a non-polarized light may be irradiated on the rubbed alignment layer during the light irradiation.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: November 10, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: YongSung Ham, MiKyung Chu
  • Patent number: 7604850
    Abstract: An electro-optical device including a biaxial liquid crystal having a primary and secondary director is provided. A change in orientation of at least one of the directors due to an applied electric field produces a change in the optical state of the device. Response times are increased dramatically over uniaxial nematic based liquid crystal devices, offering improved performance and efficiency.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: October 20, 2009
    Assignee: Kent State University
    Inventor: Satyendra Kumar
  • Patent number: 7604381
    Abstract: Disclosed herein is an optical article having a top layer with a structured surface that collimates light, a core layer secured to the top layer opposite the structured surface, and a bottom layer secured to the core layer opposite the top layer. Either the top layer or the core layer includes a first extrudable polymer having a flexural modulus of greater than 2.5 GPa, and the other layer includes a second extrudable polymer having a flexural modulus of 2.5 GPa or less, an impact strength of greater than about 40 J/m, and tensile elongation at break of greater than about 5%. The bottom layer includes a third extrudable polymer. The bottom layer of the optical article may be structured to diffuse light. One or two optical articles may be secured to an optical film such as a polarizer film. Methods and display devices are also disclosed herein.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: October 20, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Timothy J. Hebrink, James M. Jonza, Randy S. Bay, Graham M. Clarke, Raymond L. Lucking, Ta-Hua Yu, Terry O. Collier
  • Patent number: 7599028
    Abstract: A polarizing plate used in a vertical alignment mode liquid crystal display comprising a liquid crystal cell is disclosed, wherein the polarizing plate comprises a polarizing film and a mixed fatty acid cellulose ester film with optical biaxiality provided between the polarizing film and the liquid crystal cell, and wherein the mixed fatty acid cellulose ester film has a retardation in plane R0 of from 31 to 120 nm, and a retardation in the thickness direction Rt of from 60 to 300 nm, in which R0 is represented by the following formula (1) and Rt is represented by the following formula (2): R0=(nx?ny)×d??formula (1) Rt={(nx+ny)/2?nz}×d.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: October 6, 2009
    Assignee: Konica Corporation
    Inventors: Noriyasu Kuzuhara, Koji Tasaka, Hiroki Umeda, Takatoshi Yajima
  • Patent number: 7597820
    Abstract: A liquid crystal-containing composition according to the present invention includes a cholesteric liquid crystal, a polymer, and particles having hydrophobic surfaces. The particles having hydrophobic surfaces are at the interface between the region containing the cholesteric liquid crystal and the region containing the polymer.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: October 6, 2009
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Chikara Manabe, Naoki Hiji, Shigeru Yamamoto
  • Publication number: 20090244458
    Abstract: [Problem] In the present invention, it is an object to improve display quality by improving response speed of a liquid crystal element in a liquid crystal display device, in particular, response speed in the case of falling. [Means for Solving the Problems] In the present invention, it is characterized that a liquid crystal layer is divided into plural regions (domains) substantially by mixing a chemical compound including a liquid crystal skeleton in a liquid crystal layer existing liquid crystal molecules as a technique to improve response speed of a liquid crystal element in a liquid crystal display device for solving the above problem.
    Type: Application
    Filed: June 11, 2009
    Publication date: October 1, 2009
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeshi Nishi, Tetsuji Ishitani, Daisuke Kubota
  • Publication number: 20090246415
    Abstract: A functional film comprises an anti-glare layer and an anti-reflection layer formed on the anti-glare layer. In the functional film, the anti-glare layer comprises a resin component comprising a plurality of resins which phase-separate from each other, the anti-reflection layer has a first surface and a second surface contacting with the anti-glare layer and comprises a low-refractive-index particle and a high-refractive-index particle, and the high-refractive-index particle is localized near the second surface of the anti-reflection layer.
    Type: Application
    Filed: March 27, 2009
    Publication date: October 1, 2009
    Inventors: Wataru HORIE, Mitsuaki Kumazawa, Shinji Kikuchi