Patents Assigned to Display Technologies
  • Patent number: 8232548
    Abstract: A light-emissive device is prepared by depositing a polymer layer on a substrate. The deposition process utilizes a formulation comprising a conjugated polymer dissolved in a solvent, the solvent including a trialkyl-substituted aromatic hydrocarbon wherein at least two of the alkyl substituents are ortho to one another. The deposition of the polymer layer on the substrate may be accomplished by an ink-jet method.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: July 31, 2012
    Assignee: Cambridge Display Technology Limited
    Inventors: Ilaria Lavinia Grizzi, Peter Lyon
  • Patent number: 8232135
    Abstract: An organic transistor comprising source and drain electrodes; a gate electrode; an organic insulating layer between the gate electrode and the source and drain electrodes; and an organic semiconductive region between the insulating layer and the source and drain electrodes; wherein the organic semiconductive region comprises (a) a high mobility layer of an organic semiconductor and (b) a blocking layer of organic material positioned between the high mobility layer and the source and drain electrodes, in which the ionization potential of the organic material of the blocking layer exceeds the workfunction of the source and drain electrodes so as to inhibit charge injection from the source electrode into the blocking layer in the off-state.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: July 31, 2012
    Assignee: Cambridge Display Technology Limited
    Inventor: Richard Wilson
  • Publication number: 20120188188
    Abstract: A touch screen display device includes a plurality of display pixels for generating an image, emitters interspersed among the display pixels and emitting light, and detectors interspersed among the display pixels for detecting light. The light from the emitters is coupled into a transparent substrate to reach the front surface which transmits light incident at an angle smaller than a critical angle and which totally internally reflects light which is incident at an angle greater than the critical angle. The display device further includes processing means coupled to the emitters and detectors for detecting the light reaching each detector from different specific emitters and determining the light that is received by each detector that may be due to direct reflection from a near-field object, and the light that is totally internally reflected and which may be frustrated by a touching object.
    Type: Application
    Filed: September 1, 2010
    Publication date: July 26, 2012
    Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventor: Euan Smith
  • Publication number: 20120187548
    Abstract: A method of modifying a fluorinated polymer surface comprising the steps of depositing a first layer on at least a portion of the fluorinated polymer surface, the first layer comprising a first polymer, the first polymer being a substantially perfluorinated aromatic polymer; and depositing a second layer on at least a portion of the first layer, the second layer comprising a second polymer, the second polymer being an aromatic polymer having a lower degree of fluorination than said first polymer, whereby the second layer provides a surface on to which a substance having a lower degree of fluorination than the first polymer, e.g. a non-fluorinated substance is depositable.
    Type: Application
    Filed: July 29, 2010
    Publication date: July 26, 2012
    Applicant: Cambridge Display Technology Limited
    Inventor: Thomas Kugler
  • Publication number: 20120182265
    Abstract: An apparatus such as a touch screen display includes correlated emitter-detector pairs for determining the amount of electromagnetic radiation received at a detector from its paired emitter. The apparatus comprises an array of emitters operable to emit electromagnetic radiation, an array of detectors for detecting the electromagnetic radiation, and drive control circuitry configured to control the array of emitters so that they emit pulses of electromagnetic radiation. The amplitude of the pulses is modulated using mutually orthogonal binary vectors such as a Paley construction of the Hadamard matrix. Each emitter has a different vector associated with it. Detection circuitry is provided to detect the electromagnetic radiation reaching each particular detector in the array of detectors using the mutually orthogonal binary vector associated with the correlated emitter to produce a correlation between particular emitter-detector pairs. The arrangement can discriminate between near field and touching objects.
    Type: Application
    Filed: August 31, 2010
    Publication date: July 19, 2012
    Applicant: Cambridge Display Technology Limited
    Inventors: Euan Smith, Aleksandra Rankov
  • Publication number: 20120184089
    Abstract: A semiconducting compound comprising the structure: where R1 to R4 independently comprise, but are not limited to, optionally substituted straight, branched or cyclic alkyl chains having 2 to 20 (e.g. 2 to 12) carbon atoms, alkoxy, amino, amido, silyl, alkyl, alkenyl, aryl or hetero aryl; where X1 and X2 independently comprise S, O, NR5 or SiR6R7 where R8 to R7 independently comprise C1 to C5 branched, straight or cyclic alkyl chains; and where Ar1 comprises a heterocyclic ring, and where n is an integer between 1 and 4.
    Type: Application
    Filed: August 5, 2010
    Publication date: July 19, 2012
    Applicant: Cambridge Display Technology Limited
    Inventors: Sheena Zuberi, Tania Zuberi
  • Publication number: 20120183641
    Abstract: A mold releasing device for protecting an inclined pole is provided. The mold releasing device comprises a movable core having an inclined hole and disposed inside a movable mold. The inclined pole is cubic shape and has a positioning face at upper side, wherein the positioning face approaches the upper face of the inclined hole. Two sides of middle of the inclined pole contain a trough and a roller unit, wherein the roller unit practices rolling friction and is corresponded to the inclined hole and disposed inside the trough. The lower side of the inclined pole contains a fastening element connected to upper end of a vertical bar. The lower end of the vertical bar contains a flange disposed at a circular orifice of a fixing plate, wherein the fixing plate is fixed to a pushing plate by means of a bolt. Whereby, the pushing plate and the vertical bar may push forward the inclined pole with tilted manner inside the inclined hole and eject a plastic product with laterally release.
    Type: Application
    Filed: January 18, 2011
    Publication date: July 19, 2012
    Applicant: TPV DISPLAY TECHNOLOGY (XIAMEN) CO., LTD.
    Inventor: Hsin An Shih
  • Patent number: 8223299
    Abstract: The OCB mode liquid crystal display device applies a black display voltage V(Tr) with temperature characteristic requirements expressed by: V(T)=<Vs(T), and V(Tr??T)=V(T)=<Vs(Tr), where T represents a panel temperature of the liquid crystal panel, Tr represents a sensed temperature, ?T represents a temperature difference between the panel temperature and the sensed temperature, and Vs(T) represents an optimal black display voltage.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: July 17, 2012
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Shigesumi Araki, Kazuhiro Nishiyama, Mitsutaka Okita, Daiichi Suzuki
  • Patent number: 8216874
    Abstract: An optical device comprising an anode, a cathode comprising barium, strontium or calcium, and a layer of organic semiconducting material between the anode and the cathode wherein a layer of hole transporting and electron blocking material is located between the anode and the layer of organic semiconducting material.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: July 10, 2012
    Assignee: Cambridge Display Technology Limited
    Inventors: Brian Tierney, Ilaria Grizzi, Clare Louise Foden, Nalinkumar L. Patel, Mark Leadbeater
  • Patent number: 8218115
    Abstract: After supply of power, a liquid crystal display device performing transition from a first state to a second state different from the first state before a display operation is provided with a transition nucleus forming portion around a pixel electrode or inside. The transition nucleus forming portion performs transition to the second state prior to other portion during a transition drive period. The transition nucleus forming portion of the pixel electrode has an edge portion formed into a reverse taper shape decreasing in its thickness toward the tip end. Therefore, transition from a splay alignment to a bend alignment is performed with simple element and drive circuit configuration in all pixels.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: July 10, 2012
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Yukio Kizaki, Rei Hasegawa, Yuko Kizu, Hirofumi Wakemoto, Kenji Nakao, Tetsuo Fukami, Tetsuya Kojima
  • Publication number: 20120169965
    Abstract: The embodiments of present disclosure disclose a prism sheet, a backlight module and a liquid crystal display device thereof. The prism sheet comprises a first sub-prism sheet and a second sub-prism sheet with faces being closely bonded with each other, the first sub-prism sheet having a plurality of protrusions on the surface being bonded with the second sub-prism sheet, and the second sub-prism sheet having recesses on the surface being bonded with the first sub-prism sheet corresponding to the protrusions, wherein the first sub-prism sheet and the second sub-prism sheet are made of materials having different refractive indexes.
    Type: Application
    Filed: December 22, 2011
    Publication date: July 5, 2012
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD, BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Rong TANG, Bin ZOU, Dan WANG, Xibin SHAO
  • Patent number: 8212270
    Abstract: A method of manufacturing a transparent encapsulating sheet for a light-emissive device, the method comprising the steps: forming a plurality of cavities in one side of a transparent sheet of material for receiving light-emissive structures therein, said forming step producing a frosted surface comprising micro cracks in the cavities; coating said frosted surface with a low viscosity material whereby the micro cracks in the frosted surface are filled with the low viscosity material in order to form the transparent encapsulating sheet.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: July 3, 2012
    Assignee: Cambridge Display Technology Limited
    Inventors: Russell Lees, Angela Lees, legal representative
  • Patent number: 8205759
    Abstract: A product display shelf comprising a bottom surface, a rear surface and at least one compliant member is disclosed. The bottom surface is configured to support at least one product thereon. The rear surface extends upwardly from the bottom surface. The at least one compliant member is disposed in mechanical cooperation with the rear surface and is configured to substantially prevent the product supported by the bottom surface from movement relative to the bottom surface upon movement of the product display shelf.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: June 26, 2012
    Assignee: Display Technologies
    Inventor: Raymond Schneider
  • Patent number: 8206562
    Abstract: The invention relates to a method and apparatus for the application of material to form a layer of an organic electroluminescent device. The material is sputter deposited typically from at least one target of material held in respect to a magnetron in a coating chamber. The magnetrons used can be unbalanced magnetrons and/or are provided with other magnetrons and/or magnet arrays in a closed field configuration. The material is found to be deposited in a manner which prevents or minimises damage to the device and hence reduces or removes the need for a barrier layer to be applied.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: June 26, 2012
    Assignees: Cambridge Display Technology Limited, System Control Technologies Limited
    Inventors: John Michael Walls, Desmond Gibson, William Young, Nalinkumar Patel, Nicoletta Anathassopoulou
  • Patent number: 8208194
    Abstract: The invention relates to a display device having at least one electronically controllable display element comprising at least one non-polar and at least two electrically conducting or polar liquids, a fluidically closed volume having a visible subvolume, a further subvolume and at least two storage volumes connected to said subvolumes, as well as a voltage source connected to a first electrode array. It is provided thereby that each of said electrically conducting or polar liquids assumes a volume which is dimensioned such that, independent of application of voltage to the electrode array, always a fluidically tight closure for non-polar liquid between the respective storage volume and either the visible or the further subvolume is formed.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: June 26, 2012
    Assignee: Advanced Display Technology AG
    Inventors: Oliver Mueller-Marc, Dieter Jerosch, Andriy Bitman, Frank Bartels
  • Publication number: 20120153288
    Abstract: An embodiment of the disclosed technology provides a thin film transistor device comprising a source electrode, a drain electrode, a gate electrode, an active layer corresponding to the gate electrode, and a gate insulation layer formed between the gate electrode and the active layer; a concave region corresponding to the gate electrode is provided in the gate insulation layer.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 21, 2012
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD, BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Jianfeng Yuan
  • Patent number: 8197657
    Abstract: An arrangement of electrodes is provided in which there is a plurality of electrodes located in two planes and offset from one another in the direction of movement, and which within each plane are arranged in at least two electrically interconnected and alternating groups. A method is also provided for the movement or transport of drops of liquid utilizing the electrowetting effect and utilizing the above arrangement.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: June 12, 2012
    Assignee: Advanced Display Technology AG
    Inventors: Frank Bartels, Dieter Jerosch, Andriy Bitman
  • Patent number: 8199273
    Abstract: An array substrate comprising: a first insulator film arranged to insulate scanning and control lines from signal lines; switching elements, each of which is arranged in vicinity of respective intersection of the scanning and signal lines; a second insulator film that covers a multi-layer wiring pattern including the scanning and control lines and the signal lines; pixel electrodes, each of which is electrically connected to respective one of the signal lines through the respective switching element; island metal patterns, each of which is arranged to at least partly overlap the control line and is electrically connected with the respective switching element; a wiring breakage that separates one of the signal lines into two wiring parts; and bridge wirings, which connect said two wiring parts by way of one of the island metal patterns and are arranged to overlap the pixel electrodes as interposed by the second insulator film therebetween.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: June 12, 2012
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Nobuo Imai
  • Publication number: 20120135570
    Abstract: A lifting-off method and a manufacturing method for a thin film transistor (TFT) array substrate using the same are provided. A lifting-off method comprises forming a cavitation jet flow by using a lifting-off solution, and impacting a to-be-lifted-off surface of a substrate by means of the cavitation jet flow to remove a photoresist and a film deposited on the photoresist over the to-be-lifted-off surface. The disclosure may be applied to manufacturing processes for semiconductor devices or TFT array substrate.
    Type: Application
    Filed: November 29, 2011
    Publication date: May 31, 2012
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD, BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongzhi SONG, Zhaohui HAO, Xu WANG, Huiyue LUO, Guojing MA
  • Patent number: 8188964
    Abstract: A liquid crystal display device is composed of a liquid crystal display panel which includes liquid crystal pixels arranged in a matrix form and each having liquid crystal held between a pixel electrode and a common electrode, scanning lines arranged along the rows of pixels, signal lines arranged along the columns of pixels and pixel switching elements arranged near intersections between the scanning lines and the signal lines and each driven via a corresponding scanning line, and a display control circuit which controls the display panel. The display control circuit is configured to simultaneously drive all of the scanning lines, transition the potentials of the signal lines to a value substantially equal to potential of the common electrode in a state where the scanning lines are driven within a one-frame period, and turn off a power source after a preset period of time required for the transition has elapsed.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: May 29, 2012
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Masayuki Tsuruta