Patents Assigned to Display Technologies
  • Publication number: 20140104884
    Abstract: The present invention provides a light guide plate and a method and a mold for manufacturing the same. The light guide plate comprises at least one incident surface, an exiting surface and a bottom surface, the exiting surface and bottom surface being disposed facing to each other and both being connected to the incident surface, the light guide plate having a cavity formed therein, wherein light incident from the incident surface exits the exiting surface after refracted and/or reflected by the cavity. With the light guide plate, light energy loss can be reduced and brightness of pictures can be improved.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 17, 2014
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kai YAN, Kun LU, Zhanchang BU
  • Publication number: 20140103326
    Abstract: A method of manufacturing an organic light emissive device comprising: depositing an organic light emissive layer over an anode and depositing a cathode over the organic light emissive layer, wherein the cathode comprises a trilayer structure formed by: depositing a first layer comprising an electron injecting material; depositing a second layer over the first layer, the second layer comprising a metallic material having a workfunction greater than 3.5 eV; and depositing a third layer over the second layer, the third layer comprising a metallic material having a workfunction greater than 3.5 eV.
    Type: Application
    Filed: December 18, 2013
    Publication date: April 17, 2014
    Applicants: SUMITOMO CHEMICAL CO., LTD., CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventors: Daniel Alan Forsythe, Simon King, Matthew Roberts
  • Publication number: 20140104551
    Abstract: A method for preparing a negative optical compensation assembly includes: first providing an alignment chamber composed of a vertical alignment substrate and a horizontal alignment substrate and filling into the alignment chamber a liquid crystal mixture comprising a polymerizable discotic liquid crystal, an adjunct alignment agent, and an ultraviolet absorption pigment, and subjecting the vertical alignment substrate to ultraviolet radiation so as to polymerize the polymerizable discotic liquid crystal within the alignment chamber, thereby obtain the negative optical compensation assembly. This method can obtain hybrid alignment of discotic liquid crystal via a simple process, and therefore reduce the complexity for manufacturing the negative optical compensation assembly.
    Type: Application
    Filed: October 14, 2013
    Publication date: April 17, 2014
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Xiaopeng CUI
  • Patent number: 8697504
    Abstract: A method of manufacturing an organic thin film transistor, comprising: providing a substrate comprising source and drain electrodes defining a channel region; subjecting at least the channel region to a cleaning treatment step; and depositing organic semiconductive material from solution into the channel region by inkjet printing.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: April 15, 2014
    Assignee: Cambridge Display Technology Limited
    Inventors: Mark Bale, Craig Murphy
  • Patent number: 8698975
    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: Grant
    Filed: December 22, 2011
    Date of Patent: April 15, 2014
    Assignees: Boe Technology Group Co., Ltd., Beijing Boe Display Technology Co., Ltd.
    Inventors: Rong Tang, Bin Zou, Dan Wang, Xibin Shao
  • Publication number: 20140097437
    Abstract: A thin-film transistor (TFT) comprises a gate electrode, a gate insulating layer, a source electrode and a drain electrode which are formed on a base substrate, the source electrode and the drain electrode are disposed on different layers and isolated from each other through a semiconductor connecting section made of an oxide semiconductor material; a position of the semiconductor connecting section corresponds to a position of the gate electrode; and at least one part of the source electrode and at least one part of the drain electrode overlap each other at a position corresponding to the semiconductor connecting section. A display device comprising the TFT and a display device comprising the display device are also disclosed.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 10, 2014
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jeong Hun RHEE, Lianhua CHE
  • Patent number: 8693080
    Abstract: A display device uses liquids for visualizing information and comprises a plurality of display elements with cavities, at least one display liquid for displaying information, at least one liquid feeding mechanism for delivering the at least one display liquid, at least one common main duct for jointly filling a plurality of display elements, and at least one liquid reservoir for temporarily holding the at least one display liquid. The at least one liquid feeding mechanism allows display liquid to be delivered from reservoir into said display elements via the common main duct leading into at least two display elements. Each display element has at least one mechanism for influencing the surface energy of the display liquid. In the method of the invention, different feeding processes can be used for holding or delivering the desired liquid into the display elements.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: April 8, 2014
    Assignee: Advanced Display Technology AG
    Inventor: Juergen Rawert
  • Patent number: 8686632
    Abstract: An organic electroluminescent device having a plurality of pixels, the device comprising: an anode formed on a substrate; an organic electroluminescent layer formed on the anode in each well of a well-defining layer to form the plurality of pixels; a cathode layer on the electroluminescent layer and a layer of metal on the top surface of the well-defining layer; wherein a conductive layer is deposited over the cathode layer and the metal layer to electrically connect the cathode layer on the electroluminescent layer with the metal layer on the top surface of the well-defining layer.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: April 1, 2014
    Assignee: Cambridge Display Technology Limited
    Inventors: Jeremy Burroughes, Richard Wilson
  • Publication number: 20140085930
    Abstract: Disclosed are a backlight module and a display device and method using the same, the backlight module comprises light-guide plate (302), an optical film (303) attaching to a side of a light emitting face of the light-guide plate (302), and a strip-like assembly (301) of point light source disposed at the side of the light incident face of the light-guide plate (302), the strip-like assembly (301) of point light source comprises point light sources toward the light incident face of the light-guide plate (302) thereon, an edge of one side of the optical film (303) corresponding to the light incident face of the light-guide plate (302) is provided with indents (303a).
    Type: Application
    Filed: November 23, 2012
    Publication date: March 27, 2014
    Applicants: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Guangsheng Hua, Zhanchang Bu, Yi Deng
  • Publication number: 20140084272
    Abstract: This invention generally relates to planarisation of a surface of a substrate. In an embodiment of planarising a surface region of a substrate, the substrate having a body on a portion of said surface region, the method comprises: modifying the wetability of a surface of said body with respect to a liquid planariser composition by providing a surface modifying layer such as a self-assembled monolayer thereon; and then depositing the liquid planariser composition on said substrate and said body such that the planariser composition wets said surface region, wherein said surface modifying layer determines a contact angle of said liquid planariser composition to said surface of said body such that the deposited liquid planariser composition is repelled from said surface of said body.
    Type: Application
    Filed: March 21, 2012
    Publication date: March 27, 2014
    Applicant: Cambridge Display Technology Limited
    Inventors: Arne Fleissner, Surama Malik, Colin Baker, Laurence Scullion, Jeremy Burroughes
  • Patent number: 8680138
    Abstract: A soluble oligomeric compound for forming an organic thin film transistor, has repeat units comprising two or more fused thiophene residues. The repeat units comprise the structure: The compound may include two or more terminating groups comprising solvating groups. A solution of the material can be used to form a thin film transistor by ink jet printing.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: March 25, 2014
    Assignee: Cambridge Display Technology Limited
    Inventors: Tania Zuberi, Sheena Zuberi
  • Patent number: 8680763
    Abstract: An organic electroluminescent device comprises an anode; a cathode; a first electroluminescent layer between the anode and the cathode comprising an electron transporting material; and a second electroluminescent layer between the first electroluminescent layer and the anode. The second electroluminescent layer comprises a hole transporting material and an electroluminescent electron trapping material. The first electroluminescent layer may comprises a polymer having an electron transporting material and an electroluminescent material, and may include an optionally electroluminescent hole-transporting material. The electron transporting material and one or both of the hole transporting material of the first electroluminescent layer and the electroluminescent material of the first electroluminescent layer are part of the same molecule or polymer. Preferably, the electron transporting material comprises a plurality of adjacent arylene repeat units.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: March 25, 2014
    Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company Limited
    Inventors: Martial Berry, Oscar Fernandez, Richard Wilson
  • Publication number: 20140077194
    Abstract: The present invention relates to a compound of general formula (I) which can transport holes in an organic optoelectronic device, and to blends and solutions comprising the compound of general formula (I): wherein X is C, Si or Ge; A is a group of formula (II) wherein Z is N, P, NH, O or S; E is C1-10 alkyl or H; W is substituted or unsubstituted C5-14 aryl or substituted or unsubstituted C6-16 alkyl; e is an integer from 1 to 4; and z is 1 or 2; B, C and D are each independently A, H, C1-C12 alkyl, C5-14 aryl or OH; and a, b, c and d are each independently an integer from 1 to 5.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 20, 2014
    Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventors: Thomas Kugler, Tania Zuberi, Richard Wilson, Jeremy Burroughes
  • Publication number: 20140077189
    Abstract: An organic light-emitting device comprises an anode; a hole injection layer in contact with the anode; a light-emitting layer over the hole injection layer; and a cathode over the light-emitting layer, wherein the hole injection layer comprises an organic semiconductor material doped with a partially fluorinated fullerene such as C60. The dopant is present in the range of about 0.1-20 wt %, optionally 0.1-5 wt %. The organic semiconductor is preferably a polymer comprising repeat units of formula (I): wherein Ar1 and Ar2 in each occurrence are independently selected from optionally substituted aryl or heteroaryl groups; n is greater than or equal to 1, preferably 1 or 2; R is H or a substituent; any of Ar1, Ar2 and R may be linked by a direct bond or linking group; and x and y are each independently 1, 2 or 3.
    Type: Application
    Filed: April 2, 2012
    Publication date: March 20, 2014
    Applicants: SUMITOMO CHEMICAL COMPANY LIMITED, CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventors: Thomas Kugler, Richard Wilson, Sarah M. Tyler, Shohgo Yamauchi, Masato Shakutsui, Tadashi Goda, Norihito Ito
  • Publication number: 20140079173
    Abstract: The embodiments of the present invention provide a shifting register unit, a shifting register, a display apparatus and a driving method thereof, which can solve the problem that the displaying lines close to the bottom of a display panel can not operate normally due to the accumulation of the delays present in the existing shifting register unit and the problem that the lifespan of the third thin-film transistor is affected by the frequent switching-on thereof. The technical solutions allows the trigger signal of the (n+1)th shifting register unit stage to be provided by the first clock signal transmitted from the INPUT_NEXT terminal of the nth shifting register stage, and it can avoid the delay due to the trigger signal of the (n+1)th shifting register unit stage being provided by an output signal of the nth shifting register unit stage, and it can solve the technical problem that the display lines close to the bottom of the display panel can not operate normally due to the accumulation of the delays.
    Type: Application
    Filed: December 20, 2012
    Publication date: March 20, 2014
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Yan YAN
  • Publication number: 20140070260
    Abstract: According to embodiments the invention, there are provided a pixel unit, an array substrate and a liquid crystal display device. The pixel unit comprises: a first electrode, an insulating layer located on the first electrode, and a second electrode located on the insulating layer. The first electrode includes a plurality of first electrode strips which are parallel to each other and are spaced at an interval, the second electrode includes a plurality of second electrode strips which are parallel to each other and are spaced at an interval; and an angle between the first electrode strips and the second electrode strips located above the first electrode strips is larger than 0 degree and smaller than or equal to 90 degrees.
    Type: Application
    Filed: July 22, 2013
    Publication date: March 13, 2014
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xibin SHAO, Honglin ZHANG, Hebin ZHAO, Dan WANG
  • Publication number: 20140071515
    Abstract: This invention describes a method for producing a display element for an electrowetting display with the steps: Provision of a display chamber (10) with a first volume, the bottom of which is formed by a first intermediate film (60) which has a first opening, whereby the display chamber (10) is closed by an at least partly transparent cover (14; 14a, 14b) which is at some distance from the first intermediate film (16); provision of a reservoir chamber (20) for fluid with a second volume, the bottom of which is formed by a substrate and which has a second intermediate film (26) at some distance from it which closes the reservoir chamber (20) and has a second opening; provision of a quantity of fluid which is greater than both the first volume as well as the second volume but is less than the sum of the first volume and second volume; division of the quantity of fluid into a first partial drop (40a) and a second partial drop (40b); introduction of the first partial drop (40a) into the display chamber (10); intr
    Type: Application
    Filed: February 22, 2013
    Publication date: March 13, 2014
    Applicant: advanced display technology AG
    Inventor: advanced display technology AG
  • Publication number: 20140061646
    Abstract: Embodiments of the invention provide an array substrate and a display device. The array substrate comprises a common electrode and a pixel electrode that are formed on a base substrate. The common electrode comprises a first common electrode and a second common electrode, the first common electrode is provided below the pixel electrode and separated from the pixel electrode by an insulating layer, the second common electrode is provided in the same layer as the pixel electrode. The pixel electrode comprises a plurality of strip electrodes, the second common electrode also comprises a plurality of strip electrodes, and the strip electrodes of the pixel electrode and the strip electrodes of the second common electrode are alternately arranged.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 6, 2014
    Applicants: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventor: Sha Liu
  • Publication number: 20140063846
    Abstract: The invention provides a surface light source device and an edge-lit type backlight module. The surface light source device comprises: a luminant, a bottom reflector plate, a light leaking plate and a plurality of side reflector plates, wherein the bottom reflector plate and the plurality of side reflector plates form a light guide box with an upper opening, the luminant is disposed on at least one of the plurality of side reflector plates, the light leaking plate is disposed in the upper opening of the light guide box, such that light from the luminant is transformed into an exiting surface light via the light leaking plate.
    Type: Application
    Filed: March 13, 2013
    Publication date: March 6, 2014
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD, BOE TECHNOLOGY GROUP CO., LTD
    Inventors: Kun Lu, Kai Yan, Zhanchang Bu, Hetao Wang, Zhi Li
  • Publication number: 20140063850
    Abstract: A backlight and a liquid crystal module having the same are provided. The backlight comprises: a light guide plate, a light-guide-plate fixing element for fixing the light guide plate, and at least one light source disposed adjacent to the light guide plate, wherein the light-guide-plate fixing element is made of thermal-contractive material. As the light-guide-plate fixing element is made of thermal-contractive material, in a test environment of high temperature and high humidity, it is possible to ensure that the light guide plate can expand and contract freely without resistance; meanwhile; while at normal temperatures, as the tight-guide-plate fixing element is in contact with the light guide plate without gap therebetween.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 6, 2014
    Applicants: Beijing Boe Display Technology Co., Ltd., Boe Technology Group Co., Ltd.
    Inventors: Zhanchang Bu, Zhi Li, Fei Wang