Patents Examined by Natalie K. Walford
  • Patent number: 7948162
    Abstract: A light-emissive display comprising a substrate, a first electrode layer disposed over the substrate, a light-emissive layer disposed over the first electrode layer, and a second electrode layer disposed over the light-emissive layer, wherein the light-emissive layer is patterned to provide a plurality of discrete light-emissive regions, each discrete light-emissive region being a pixel, or a sub-pixel, of the light-emissive display, and wherein the first electrode layer and/or the second electrode layer comprises a plurality of electrodes, each electrode comprising at least two sub-electrodes associated with each discrete light-emissive region.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: May 24, 2011
    Assignee: Cambridge Display Technology Limited
    Inventor: Euan C. Smith
  • Patent number: 7928654
    Abstract: An object of the present invention is to provide such a sealing structure that a material to be a deterioration factor such as water or oxygen is prevented from entering from external and sufficient reliability is obtained in a display using an organic or inorganic electroluminescent element. In view of the above object, focusing on permeability of an interlayer insulating film, deterioration of an electroluminescent element is suppressed and sufficient reliability is obtained by preventing water entry from an interlayer insulating film according to the present invention.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: April 19, 2011
    Assignee: Semiconductor Energy laboratory Co., Ltd.
    Inventors: Kaoru Tsuchiya, Aya Anzai, Masayuki Sakakura, Masaharu Nagai, Yutaka Matsuda
  • Patent number: 7919922
    Abstract: Provided are a green phosphor for a plasma display panel (PDP) represented by Formula 1 and a PDP including a phosphor layer formed of the same: (Y1-x-yGdx)Al3(BO3)4:Tby??Formula 1 where 0?x<1, 0<y<1 and 0<x+y<1. The luminance saturation characteristic of a green phosphor layer can be improved using the green phosphor for a PDP according to the present embodiments, and the green phosphor can also be mixed with conventionally used green phosphors. Image quality can be improved according to a mixing rate of the green phosphor and conventionally used green phosphors since color reproduction range widens and luminance does not decrease compared to using the conventional green phosphors.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: April 5, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Soon-Rewl Lee, Sung-Yong Lee, Young-Gil Yoo, Jin-Won Kim, Young-Kwan Kim
  • Patent number: 7915826
    Abstract: An electric lamp comprises an inner assembly including a light source and a control gear circuit. An outer envelope encloses the light source and at least a part of the control gear and has a predetermined wall thickness and an end portion. The outer envelope is comprised of two parts separated along a circumferential line. The two parts of the envelope are connectable and sealable to form a uniform outer envelope with a seal region. The seal region has a wall thickness and is merged in a surface portion of the two parts of the envelope so that the surface unevenness of the seal region is not greater than 0.5 millimeters, and the maximum difference of the wall thickness of the seal region with respect to the wall thickness of the outer envelope is not greater than 0.3 millimeters. A method for manufacturing an electric lamp as described above is also disclosed.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: March 29, 2011
    Assignee: General Electric Company
    Inventors: István Würsching, József Fülöp, Ferenc Papp, László Bánkuti, János Orbán
  • Patent number: 7911137
    Abstract: An electroluminescent display comprising a substrate (1), a substantially transparent electrode (2) adjacent to the substrate, a layer of electroluminescent material (3) adjacent to the substantially transparent electrode, a layer of dielectric material (4) adjacent to the layer of electroluminescent material and a further electrode (5) adjacent to the dielectric layer, in which there is further provided an intermediate layer (6) between the substantially transparent electrode and the layer of electroluminescent material. The intermediate layer typically acts as a diffuser and may comprise Barium Titanate.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: March 22, 2011
    Assignee: Mflex UK Limited
    Inventors: William Frank Tyldesley, Stephen Green
  • Patent number: 7911141
    Abstract: A plasma display panel that achieves improved discharge efficiency and reduced discharge voltage is provided. The plasma display panel includes a substrate, a sustain electrode located on the substrate, a first dielectric layer located on the substrate formed with the sustain electrode, and a second dielectric layer located on the first dielectric layer and having a larger dielectric constant than a dielectric constant of the first dielectric layer.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: March 22, 2011
    Assignee: LG Electronics Inc.
    Inventor: Woong Kee Min
  • Patent number: 7911133
    Abstract: An OLED device including a transparent substrate having a first surface and a second surface, a transparent electrode layer disposed over the first surface of the substrate, a short reduction layer disposed over the transparent electrode layer, an organic light-emitting element disposed over the short reduction layer and including at least one light-emitting layer and a charge injection layer disposed over the light emitting layer, a reflective electrode layer disposed over the charge injection layer and a light extraction enhancement structure disposed over the first or second surface of the substrate; wherein the short reduction layer is a transparent film having a through-thickness resistivity of 10?9 to 102 ohm-cm2; wherein the reflective electrode layer includes Ag or Ag alloy containing more than 80% of Ag; and the total device size is larger than 10 times the substrate thickness.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: March 22, 2011
    Assignee: Global OLED Technology LLC
    Inventors: Yuan-Sheng Tyan, Donald R. Preuss, Giuseppe Farruggia, Raymond A. Kesel, Thomas R. Cushman
  • Patent number: 7906906
    Abstract: A light emitting device is provided. The light emitting device includes a substrate including a non-emission region and an emission region, an emission unit which is located on the subsrate and includes a first electrode, a second electrode and an emission layer interposed between the first and second electrodes, a shield cap adhered to the substrate to encapsulate the emission unit, and an inert liquid or an inert gas in a space between the substrate and the shield cap.
    Type: Grant
    Filed: March 25, 2006
    Date of Patent: March 15, 2011
    Assignee: LG Display Co., Ltd.
    Inventor: Jong Geun Yoon
  • Patent number: 7902744
    Abstract: A structure for high performance light emitting electrochemical cells comprises at least two active layers of mixed ionic/electronic conducting materials, at least one of which is electroluminescent. The active layers are sandwiched between ion blocking electrodes, typically metal and/or transparent conducting oxide, that are electrically but not ionically conductive. Application of bias to the electrodes results in the polarization of ions at the electrodes thereby generating a field to drive the injection of electronic carriers into the active layer. The injected electron and holes recombine within the active layers to emit light. The ability to balance electron and hole injection in the design of such devices provides for optimal light emission efficiency.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: March 8, 2011
    Assignee: The State of Oregon Acting by and through the State Board of Higher Education on Behalf of the University of Oregon
    Inventors: Mark C. Lonergan, Calvin H. W. Cheng, Dean H. Johnston
  • Patent number: 7898176
    Abstract: An article includes a display layer having an outward facing surface and an inward facing surface. The display layer includes a light-emitting device that generates heat and light during use. A thermal transport layer may be secured to the display layer. The thermal transport layer may include a microfluidic layer including a coolant that can transport heat generated by the light-emitting device away from the light-emitting device. An article includes a display structure having a height, a width, and a thickness that define a volume. The display structure can include components that emit light to generate a three-dimensional image within the volume. The display structure includes a stack. The display structure also includes a thermal dissipation layer in contact with the sheet or stack that can transport generated heat from the sheet or stack to a heat absorbing structure.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: March 1, 2011
    Assignee: General Electric Company
    Inventors: Yun Li, Mark Lewis Grabb, John Erik Hershey, Jian Zhang, Hua Xia, Gelu Comanescu
  • Patent number: 7893607
    Abstract: On a main face of a substrate, organic EL light emitting layers are formed by stacking first electrodes for respective pixels, an organic EL layer having a white light emitting function formed above the first electrodes to cover the first electrodes in common, and a second electrode formed such that the second electrode covers the organic EL layer in common in this order, and light emitted from the organic EL layer is irradiated to the second electrode side. Above the second electrode, a color converting filter, which converts the white light emitted from the organic EL light emitting layer to a given color and is applied by coating using a wet process, is formed for every pixel, and a protective layer, which prevents the deterioration of the light emitting layer attributed to a coating material of the color filter, is provided between the second electrode and the color converting filter.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: February 22, 2011
    Assignee: Hitachi Displays., Ltd.
    Inventors: Masatomo Terakado, Shinichi Kato, Eiji Matsuzaki
  • Patent number: 7893608
    Abstract: An organic electroluminescent element includes a light emitting unit provided between an anode and a cathode. The light emitting unit has a light emitting layer containing a phosphorescent material as a luminescent material and a photosensitizing layer formed adjacent to the light emitting layer. The photosensitizing layer contains a fluorescent light emitting material as a guest material.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: February 22, 2011
    Assignee: Sony Corporation
    Inventors: Masayuki Kurotaki, Shigeyuki Matsunami, Yasunori Kijima
  • Patent number: 7888857
    Abstract: A three-dimensional light emitting device and a method for fabricating the light emitting device are provided. The light emitting device comprises a substrate and a semiconductor nanoparticle layer wherein the substrate is provided with a plurality of three-dimensional recesses and the surface having the recesses is coated with semiconductor nanoparticles. According to the three-dimensional light emitting device, the formation of the semiconductor nanoparticles on the surface of the recessed substrate increases the light emitting area and enhances the luminescence intensity, leading to an increase in the amount of light emitted from the light emitting device per unit area. Therefore, the three-dimensional light emitting device has the advantage of improved luminescence efficiency.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: February 15, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae Young Choi, Byoung Lyong Choi, Dong Kee Yi, Kwang Soo Seol, Seong Jae Choi
  • Patent number: 7880379
    Abstract: The invention relates to the improvement of phosphorescing organic electroluminescent devices characterized in that the emission layer, which consists of a matrix material which is doped with at least one phosphorescing emitter, directly adjoins an electrically conducting layer.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: February 1, 2011
    Assignee: Merck Patent GmbH
    Inventors: Anja Gerhard, Horst Vestweber, Philipp Stössel
  • Patent number: 7876048
    Abstract: The present embodiments provide a plasma display panel includes first and second substrates facing each other, barrier ribs dividing a plurality of discharge cells between the first and second substrates, phosphor layers coated in the discharge cells, display electrodes extending in a first direction corresponding to the discharge cells between the first and second substrates, address electrodes arranged on the first substrate corresponding to the discharge cells and extending in a second direction crossing the first direction, and a dielectric layer formed on the first substrate while covering the address electrodes. Each of the address electrodes includes an insulating glass layer formed along a periphery of the electrode. The dielectric layer includes TiO2 within a range of 5-15% by weight.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: January 25, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Jung-Tae Park
  • Patent number: 7863805
    Abstract: It is possible to provide an electron emission cathode, an electron emission source having a high-luminance and narrow energy width by using diamond and an electronic device using them. The diamond electron discharge cathode has a monocrystal diamond at least at a part of it. The diamond electron emission cathode has a columnar shape including a sharpened section and a heating section. The sharpened section has an electron emission section. The electron emission section and the heating section are formed by diamond semiconductor, which is formed by a p-type semiconductor containing 2×1015 cm?3 of p-type impurities or above. The electron emission section has the semiconductor. A metal layer is formed on the surface of the electron emission cathode. The metal layer exists at least at a part of the heating section. The distance from the electron emission section to the position nearest to the end of the metal layer is 500 ?m.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: January 4, 2011
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yoshiyuki Yamamoto, Akihiko Ueda, Yoshiki Nishibayashi, Takahiro Imai
  • Patent number: 7863807
    Abstract: Systems for displaying images and fabrication method thereof are provided. A representative system incorporates an electroluminescent device including light emitting units emitting lights with different luminescent intensities along light emitting paths thereof, formed overlying a substrate. And a compensation layer is disposed along the light emitting paths to adjust the different luminescent intensities for outputting substantially uniform light.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: January 4, 2011
    Assignee: TPO Displays Corp.
    Inventors: Du-Zen Peng, Shih-Chang Chang, Chang-Ho Tseng
  • Patent number: 7859179
    Abstract: An electromagnetic wave shielding material 1 comprises a light-shielding electrical conductor layer 11 having, on its observer-side external surface, a blackening layer 12. The electrical conductor layer 11 comprises a mesh portion 2 that has a large number of openings adjoining one another and faces the center portion 5b of the image-luminescent part 5a of a display device 5, and a frame portion 3 that surrounds the mesh portion 2 and faces the outer edge portion 5c of the image-luminescent part 5a of the display device 5. When trimming the screen of a display D with a black-colored light-shielding layer, since the electromagnetic wave shielding material 1 is used, it is not necessary to perform9 an additional printing step or the like, so that the total number of steps and material cost are not increased. Moreover, such electromagnetic wave shielding material does not cause non-uniformity in light-shielding properties compared with a light-shielding layer formed by printing.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: December 28, 2010
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Fumihiro Arakawa, Kazuhito Fujii, Yukihiro Kyoden
  • Patent number: 7847474
    Abstract: A vacuum envelope and an electron emission display having the vacuum envelope. The vacuum envelope includes a first substrate and a second substrate facing the first substrate. A plurality of frames is arranged between the first substrate and the second substrate to form an inner vacuum space. An absorbing member is arranged between at least two of the frames.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: December 7, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Hyeong-Rae Seon
  • Patent number: 7843136
    Abstract: There is disclosed a construction which facilitates preventing of organic electroluminescence films from being broken by contact between desiccant members and the organic electroluminescence films which are provided inside an organic electroluminescence display device. Organic electroluminescence films are formed on a substrate. An interior of an organic electroluminescence display device is sealed by a rear glass plate which is sealingly bonded to the substrate. The rear glass plate has recess portions in which desiccant members are mounted by double-side adhesive tapes. Thick portions are provided between respective adjacent recess portions of the rear glass plate, whereby the rear glass plate is prevented from being made to flex, and contact between the desiccant members and the organic electroluminescence films formed on the substrate is prevented.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: November 30, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Yoshinori Ishii, Satoru Kase