Patents Assigned to Display Technologies
  • Patent number: 7564511
    Abstract: A circuit array substrate includes an optically transparent substrate, pixels having switching elements formed on the transparent substrate, gate electrode lines connected to the switching elements, the gate electrode lines being provided on a first insulation film with separating portions in the pixels, signal lines connected to the switching elements, the signal lines being provided on a second insulation film which is different from the first insulation film, and electrically conductive portions provided on the second film to electrically connect the electrode lines with the separating portions to each other. The separating portions reduce electrostatic capacitances defined between the gate electrode lines and the switching elements when the conductive portions are not connected between the separating portions.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: July 21, 2009
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Hiroshi Tabatake, Tetsuya Kawamura, Shinichi Kawamura, Katsuhiko Inada, Atsushi Takeda, Nobuo Imai, Akihiro Takami
  • Patent number: 7561147
    Abstract: To provide a current output type semiconductor circuit, a drive device for display, a display device, and a current output method that can control an increase in a circuit size to be lower even if the number of output bits of a current driver is increased. A current output type semiconductor circuit, including first current source groups 241a and 241b, includes first unit transistors of outputting a predetermined current and output lower order N (N is a natural number) bits; and second current source groups 242a, 242b, 242c, 242d, 242e, and 242f that include second unit transistors of outputting a current larger than that of the first unit transistors and output higher order M (M is a natural number, (N+M)?3) bits.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: July 14, 2009
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Hitoshi Tsuge
  • Patent number: 7561233
    Abstract: In an OCB mode liquid crystal display device, a first phase layer that causes a retardation in an in-plane azimuth direction is disposed between a first polarizing layer and a liquid crystal layer such that a slow axis of the first phase layer intersects at right angles with an absorption axis of the first polarizing layer, a second phase layer that causes a retardation in an in-plane azimuth direction is disposed between a second polarizing layer and the first phase layer such that a slow axis of the second phase layer intersects at right angles with an in-plane azimuth direction in which liquid crystal molecules are inclined, and a third phase layer, which has an optical axis in a normal direction of the liquid crystal display device and has, as a whole, a negative uniaxial function, is disposed between the second polarizing layer and the first phase layer.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: July 14, 2009
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Yuzo Hisatake
  • Patent number: 7561222
    Abstract: A method to manufacture a liquid crystal display device including the steps of: forming contact holes 400, 401 in signal line-broken end portions 1020, 1021 of a signal line 102 in question with respect to a broken portion 20 lying in the signal line 102 in the condition where a center portion of each contact hole is made to deviate from a center portion of the signal line 102 in the direction of the width thereof; filling the contact holes with tungsten; and forming a tungsten line 50 to cover the tungsten-filled contact holes 500, 501 and the broken portion 20.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: July 14, 2009
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Shigeru Tabata, Hideyuki Imura, Nobuo Kitagishi, Hiroshi Ootaguro
  • Publication number: 20090174311
    Abstract: A method of forming an organic light emitting diode comprising the steps of: providing a substrate comprising a first electrode for injection of charge carriers of a first type; forming a charge transporting layer by depositing over the substrate a charge transporting material for transporting charge carriers of the first type, the charge transporting material being soluble in a solvent; treating the charge transporting layer to render it insoluble in the solvent; forming an electroluminescent layer by depositing onto the charge transporting layer a composition comprising the solvent, a phosphorescent material, and a host material; and depositing over the electroluminescent layer a second electrode for injection of charge carriers of a second type.
    Type: Application
    Filed: December 20, 2004
    Publication date: July 9, 2009
    Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventors: Nalinkumar L. Patel, Natasha M. Conway, Mark Leadbeater, Ilaria Grizzi
  • Patent number: 7557373
    Abstract: A thin-film transistor substrate includes a pixel region where gate electrode lines are arranged on an insulating substrate sandwiching semiconductor layer patterns and a gate insulator with the insulating substrate, wherein shapes of the semiconductor patterns and the gate electrode lines are set so that a value of K obtained by the following equation is smaller than a first set value when the thin-film transistor substrate is mounted on a metal table: K=(L/Ce)×{Ca/(Ca+Cb)}×S where Ca represents a capacitor between each of the semiconductor layer patterns and the metal table, Cb represents a capacitor between each of the semiconductor layer patterns and the gate electrode lines, Ce represents a capacitor between each of the gate electrode lines and the metal table, L represents a length of each of the gate electrode line, and S represents a substrate surface area that one of the gate electrode lines are in charge of per unit length.
    Type: Grant
    Filed: March 21, 2005
    Date of Patent: July 7, 2009
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Tetsuya Kawamura, Katsuhiko Inada
  • Publication number: 20090167170
    Abstract: A polymer formed from optionally substituted first repeat units of formula (I) wherein Ar is selected from (a) aromatic hydrocarbon substituted with at least one electron withdrawing group or electron withdrawing heteroaryl. The polymers have application in electroluminescent devices.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 2, 2009
    Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventors: Jeremy Burroughes, Richard Friend, Clare Foden
  • Patent number: 7551245
    Abstract: A tiling of multiple display panels having reduced seam widths (gap) therebetween using a plurality of single edge connect display panels, wherein for each display panel: interconnect lines in the lateral direction are formed on a front plate; input portions of the interconnect lines are routed on an area where a sealing portion is formed and are extended outwardly from the bottom edge of the display panel; the area where the sealing portion is formed is a non-display area of the display panel on the front plate that is bonded to a rear plate with a seal material; and the input portions routed the bottom side of the front plate are extended outwardly from the bottom edge of the rear plate. The input portions are formed in part on the rear plate and electrical connection is established by bonding the front plate and the rear plate via through holes.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: June 23, 2009
    Assignees: Magink Display Technologies Ltd., Mitsubishi Denki Kabushiki Kaisha
    Inventors: Amir Ben-Shalom, Noritaka Egami, Zenichirou Hara
  • Publication number: 20090152531
    Abstract: A semiconductive hole transport material containing polar substituent groups, the polar substituent groups substantially not affecting the electronic properties of the hole transport material and the hole transport material being soluble in a polar solvent.
    Type: Application
    Filed: October 11, 2005
    Publication date: June 18, 2009
    Applicants: CAMBRIDGE DISPLAY TECHNOLOGY LTD, CDT OXFORD LTD.
    Inventors: Carl R. Towns, Caroline Towns, Mary J. McKiernan, Annette Steudel
  • Publication number: 20090153779
    Abstract: The invention relates to a transflective liquid crystal display capable of display in both of transmissive and reflective modes and a method of manufacturing the same and provides a transflective liquid crystal display which can achieve high display characteristics in both of the transmissive and reflective modes.
    Type: Application
    Filed: January 5, 2009
    Publication date: June 18, 2009
    Applicants: FUJITSU DISPLAY TECHNOLOGIES CORPORATION, AU OPTRONICS CORPORATION
    Inventors: Hidefumi Yoshida, Yasutoshi Tasaka, Kunihiro Tashiro, Katsufumi Ohmuro, Tsuyoshi Kamada, Kazuya Ueda, Masakazu Shibasaki
  • Publication number: 20090146164
    Abstract: A semiconductive conjugated polymer comprising a first repeat unit comprising general formula I: where Arl, Ar3, and Ar5 are the same or different and wherein each represents an optionally substituted aryl or heteroaryl group; Ar2 and Ar4 are the same or different and each represent a substituted aryl or heteroaryl group; and Ar2 and Ar4 sterically interact with one another so as to cause an increase in the bandgap of the polymer.
    Type: Application
    Filed: December 23, 2005
    Publication date: June 11, 2009
    Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventors: Brian Tierney, Mark Leadbeater, Nalinkumar Patel, Clare L. Foden, Natasha M. Conway, Mary J. McKiernan
  • Patent number: 7545475
    Abstract: To suppress occurrence of low temperature bubbles while securing pressure resistance to external forces applied to substrates of a liquid crystal display device, a plurality of spacers disposed between the substrates are divided into a plurality of spacer groups 2, one unit of which is configured with spacers 2a, 2b allocated in close proximity to each other; and the spacer groups 2 are disposed with a density that the low temperature bubbles do not occur. Hence, the strength of the substrates increases, and in a region 10 where no spacers exist, a large deformation of the substrates by shrinkage is allowed, and a liquid crystal layer 8 is sufficiently enough shrunk even under a low temperature environment to prevent the low temperature bubbles from occurring.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: June 9, 2009
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Tetsuya Kawamura, Katsuhiko Inada, Akimasa Toyama
  • Patent number: 7545628
    Abstract: In a display panel mounted on a display device, a configuration of mounting that realizes decrease in thickness and weight and exhibits high reliability as well. The display panel is provided with a screen, a plastic frame supporting at least part of the outer periphery of a surface light source device, and a metallic frame disposed on the outside of the plastic frame. On the plastic frame, bosses for fixing the display panel are formed. The metallic frame is furnished at the positions opposite the bosses with holes that allow insertion of screws for fixing the display panel. The display panel is fixed to the outer cover of the display device by causing the fixing screws to be fastened by screwing into the bosses formed on the plastic frame of the display panel.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: June 9, 2009
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Masaaki Takuma
  • Patent number: 7545371
    Abstract: A display device has a pixel array part having display elements provided inside of pixels formed in vicinity of cross points of signal lines and scanning lines aligned in matrix form; image capture circuits provided corresponding to the display elements, each including an optical sensor which picks up image at prescribed range of an imaging subject; and an image capture processing unit which generates ultimate image capture data based on result of having picked up images a plurality of times while changing image capture condition except for display color, with respect to each of M kinds of display colors.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: June 9, 2009
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Takashi Nakamura, Masahiro Yoshida, Miyuki Ishikawa
  • Patent number: 7541752
    Abstract: An illuminating device comprises a plurality of light-emitting element groups each including a plurality of series-connected light-emitting elements, a load which is connected in series with one of the light-emitting element groups, and forms a reference element group together with the one light-emitting element group, and a driving circuit which includes a monitor unit which monitors an electrical characteristic value of the reference element group, and supplies an electric current set on the basis of the electrical characteristic value obtained by the monitor unit to the reference element group and the other light-emitting element groups.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: June 2, 2009
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Shuichi Kunifuda
  • Patent number: 7542123
    Abstract: Main body groove portions are formed along the longitudinal direction on the surface of a spacer height adjusting layer provided on a margin area of a large-size glass substrate. The cross-sectional area between seal materials between image display areas is increased. An air discharge efficiency from the inside of the image display area between the large-size glass substrates can be enhanced. The air discharge from the inside of the imaged is play area can be further reliably and readily performed. Liquid crystal composition can be readily injected from a liquid crystal injection port into the image display area. The time required to inject the liquid crystal into the image display area can be shortened. The productivity of liquid crystal panels can be enhanced.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: June 2, 2009
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Atsuyuki Manabe
  • Patent number: 7537947
    Abstract: Apparatus and methods for providing displays based upon the principle of photoluminescent quenching are described. The invention includes a method of displaying information using photoluminescence quenching, the method comprising providing an optoelectronic display comprising a photoluminescent material between a pair of electrodes, providing illumination for the photoluminescent material to cause the photoluminescent material to photoluminescence, and biasing the electrodes to at least partially quench the photoluminescence.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: May 26, 2009
    Assignee: Cambridge Display Technology Limited
    Inventors: Euan Christopher Smith, Alec Gordon Gunner, Jonathan J. M. Halls
  • Publication number: 20090128749
    Abstract: A peripheral part of a substrate 1A includes a straight line part 1a. Similarly, a peripheral part of a substrate 1B includes a straight line part. A peripheral part of a polarizing plate 2 is formed of a curved part, and includes a straight line part 2a.
    Type: Application
    Filed: November 10, 2008
    Publication date: May 21, 2009
    Applicant: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Atsuko Oono, Tatsuaki Kuji, Yoshitaka Yamada
  • Patent number: 7534503
    Abstract: A monomer having general Formula (I) which may be substituted or unsubstituted: where E and E are the same or different and are reactive groups capable of undergoing chain extension; X is O, S, NR5, R5C—CR6 or R5?CR6; Y is O, S, NR7, R7C—CR8 or R7C?CR8; R5, R6 R7 and R8 are the same or different and each is independently H or a substituent group; and each Ar is the same or different and is independently a substituted or unsubstituted aryl or heteroaryl group.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: May 19, 2009
    Assignee: Cambridge Display Technology Limited
    Inventors: Jeremy Burroughes, Carl Towns, Thomas Pounds, Jonathan Halls
  • Patent number: 7535166
    Abstract: An organic EL display includes an organic EL element which includes first and second electrodes and an active layer interposed therebetween and including an emitting layer, and an outcoupling layer facing the first electrode. The organic EL element forms a waveguide layer which includes the first electrode and the active layer and in which light components from the emitting layer propagate in an in-plane direction while causing multiple-beam interference. A distance between the outcoupling layer and the waveguide layer is shorter than a wavelength of light from the organic EL element. A guide length x, a number of reflection m, an absorption coefficient ?, and an outcoupling efficiency ? satisfy a relationship represented by an inequality: ? ? ? M = 1 m ? ( 1 - ? ) M - 1 exp ? { ? ? ( 2 ? M - 1 ) ? x } > 0.1 .
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: May 19, 2009
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Satoshi Okutani