Electrode (epo) Patents (Class 257/E51.019)
  • Patent number: 12146083
    Abstract: The present disclosure relates to a surface protective film and a method for manufacturing an organic light emitting electronic device using the surface protective film.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: November 19, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Jeong Min Choi, Hyun Cheol Kim, Sojin Kim, Hyungoo Kang, Jae Seung Lim
  • Patent number: 11925041
    Abstract: To provide a light-emitting element with high emission efficiency and low driving voltage. The light-emitting element includes a guest material and a host material. A LUMO level of the guest material is lower than a LUMO level of the host material. An energy difference between the LUMO level and a HOMO level of the guest material is larger than an energy difference between the LUMO level and a HOMO level of the host material. The guest material has a function of converting triplet excitation energy into light emission. An energy difference between the LUMO level of the guest material and the HOMO level of the host material is larger than or equal to energy of light emission of the guest material.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: March 5, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Takeyoshi Watabe, Satomi Mitsumori
  • Patent number: 11856818
    Abstract: An organic light emitting diode display according to an exemplary embodiment includes: a substrate; a first buffer layer on the substrate; a first semiconductor layer on the first buffer layer; a first gate insulating layer on the first semiconductor layer; a first gate electrode and a blocking layer on the first gate insulating layer; a second buffer layer on the first gate electrode; a second semiconductor layer on the second buffer layer; a second gate insulating layer on the second semiconductor layer; and a second gate electrode on the second gate insulating layer.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: December 26, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joon Woo Bae, So Young Koo, Han Bit Kim, Thanh Tien Nguyen, Kyoung Won Lee, Yong Su Lee, Jae Seob Lee, Gyoo Chul Jo
  • Patent number: 11645863
    Abstract: Disclosed by the embodiment of the present disclosure is a display device, wherein a collimation structure is formed by a first imaging aperture in a pixel defining layer and a second imaging aperture in a light shielding layer, the first imaging aperture and the second imaging aperture may screen out light rays reflected by a fingerprint in a nearly collimated manner so that the light rays may reach a fingerprint recognition component below, the fingerprint recognition component may detect and read intensities of the light rays, and the intensities of the light rays detected by the fingerprint recognition component are different because of different energies of the light rays transmitted downward from the valley and the ridge of the fingerprint, thereby acquiring fingerprint information and achieving fingerprint recognition. Moreover, the fingerprint recognition component is integrated in a display area to achieve large-area fingerprint recognition.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: May 9, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Shiming Shi, Zhao Li, Wenxiu Zhu
  • Patent number: 11616102
    Abstract: Provided is a display device that includes a substrate including a plurality of pixels; a display element layer including a light emitting element provided in each of the pixels; and a touch sensor on the display element layer. The touch sensor may include: a base layer on the display element layer; a first conductive pattern on the base layer; a first insulating layer provided over the first conductive pattern; a second conductive pattern on the first insulating layer; a second insulating layer provided over the second conductive pattern; an intermediate layer on the base layer; and a cover layer provided over the intermediate layer. The intermediate layer and the cover layer may include different materials.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: March 28, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Young Kim, Jong Ryuk Park, Ji Youn Lee, Kwang Sik Lee
  • Patent number: 11590529
    Abstract: Provided is a mask manufacturing method which includes preparing a mask sheet and a frame, stretching the mask sheet, and fixing the stretched mask sheet to the frame, and forming cell openings in the mask sheet fixed to the frame.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: February 28, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwi Kim, Jeongkuk Kim, Da-Hee Jeong, Seungyong Song, Areum Lee, Hye Yong Chu, Kyu Hwan Hwang
  • Patent number: 11535738
    Abstract: A resin sheet of the present invention is a checker glass-like resin sheet made of a transparent thermoplastic resin, and includes a plurality of sectional arch-shaped elongated protrusions extending in one direction are regularly arranged in rows on, one surface of the resin sheet; and a plurality of sectional arch-shaped elongated protrusions extending in a direction perpendicular to the protrusions arranged on the one surface are regularly arranged in rows, on another surface of the resin sheet, in which an arithmetic average waviness (Wa) at a vertex of the protrusion in a direction in which the protrusion extends is 20 ?m or less on both surfaces of the resin sheet. Accordingly, there is provided a resin sheet that can be used as an alternative to checker glass and has a certain degree of visibility from a short distance while having a shielding property from a long distance.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: December 27, 2022
    Assignee: JSP CORPORATION
    Inventors: Ryosuke Itagaki, Mitsuhiro Akiyama
  • Patent number: 11527450
    Abstract: A test element group (TEG) test key of an array substrate and a display panel thereof are provided. The TEG test key of the array substrate includes a glass substrate, a multi-buffer layer, an active layer, a gate insulating layer, a gate electrode layer, an interlayer insulating layer, a source and drain electrode layer, and an organic planarization layer stacked in sequence. The TEG test key of the array substrate is defined with two test zones and a connecting zone, and each test zone is provided with a groove exposing the gate electrode layer. The gate electrode layer in the test zones is electrically connected to the source and drain electrode layer in the connecting zone.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: December 13, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Gang Tan
  • Patent number: 11444142
    Abstract: The present application discloses embodiments of a display panel, a preparation method thereof, a detection method thereof, and a display device for improving an accuracy of detecting electrical properties of transistors. In one embodiment, a display panel may include a display area including a plurality of pixels and a non-display area surrounding the display area, wherein each of the plurality of pixels may include a display pixel circuit, and the non-display area may include one or more test pixel circuits, each of the one or more test pixel circuits having an equivalent circuit structure to the display pixel circuit, where the one or more test pixel circuits may include a plurality of transistors, and electrodes of at least one of the plurality of transistors may be respectively conductively coupled to different test pads.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: September 13, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zheng Bao, Yaqin Xia, Yanxia Xin, Gong Chen, Hongwei Hu, Yihao Wu, Xueping Li
  • Patent number: 11380877
    Abstract: An organic light emitting device includes a substrate layer, an anode disposed on the substrate layer, a pixel defining layer disposed on the anode and including bumps and openings spaced apart from each other, a light emitting functional layer disposed on the pixel defining layer, a polarizing layer disposed on the light emitting functional layer, and an encapsulation layer disposed on the polarizing layer for encapsulating the polarizing layer and the light emitting functional layer. The polarizing layer including a first inorganic layer, a first polarizing layer, a second inorganic layer, and a second polarizing layer, which are sequentially disposed. The first inorganic layer is disposed on the light emitting functional layer and the pixel defining layer, and the first polarizing layer and the second polarizing layer are disposed corresponding to the openings.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: July 5, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Jiulin Shen, Guochun Yan
  • Patent number: 10811608
    Abstract: The present invention relates to a semiconducting material comprising (i) a substantially covalent matrix material consisting of at least one substantially covalent matrix compound, (ii) at least one first metal selected from the group consisting of Li, Na, K, Rb, and Cs, and (iii) at least one second metal selected from the group consisting of Zn, Hg, Cd and Te, electronic devices comprising such materials and processes for preparing the same.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: October 20, 2020
    Assignee: Novaled GmbH
    Inventors: Tomas Kalisz, Francois Cardinali, Jerome Ganier, Uwe Gölfert, Vygintas Jankus, Carsten Rothe, Benjamin Schulze, Steffen Willmann
  • Patent number: 9029853
    Abstract: According to one embodiment, a display device includes a first insulating layer, a second insulating layer, a pixel electrode, a light emitting layer, an opposite electrode and a pixel circuit. The second insulating layer is provided on the first insulating layer. The pixel electrode is provided on the second insulating layer and light-transmissive. The light emitting layer is provided on the pixel electrode. The opposite electrode is provided on the light emitting layer. The circuit is provided between the first insulating layer and the second insulating layer, includes an interconnect supplied with a drive current, and is configured to supply the drive current to the pixel electrode. The circuit is connected to the pixel electrode. The interconnect has a first region overlaying the pixel electrode when projected onto a plane parallel to the first insulating layer. The interconnect has an opening in the first region.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: May 12, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobuyoshi Saito, Tomomasa Ueda, Toshiya Yonehara, Hajime Yamaguchi, Kentaro Miura, Shintaro Nakano, Tatsunori Sakano
  • Patent number: 9029844
    Abstract: An organic light emitting diode display and a method of manufacturing the same, the display including a substrate; a plurality of thin film transistors on the substrate; a protective film covering the plurality of thin film transistors; a pixel electrode on the protective film; a pixel defining film on the protective film, the pixel defining film having an opening exposing the pixel electrode; an organic emission layer on the pixel electrode and the pixel defining film; and a common electrode covering the organic emission layer, wherein a cross-section of an opening sidewall of the opening in the pixel defining film has a rounded shape.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: May 12, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung-Ho Choi, Yang-Wan Kim
  • Patent number: 8999523
    Abstract: Disclosed is a compound containing a divalent group represented by formula (I).
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: April 7, 2015
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Tomoya Nakatani
  • Patent number: 8994027
    Abstract: A thin film transistor (TFT) array substrate includes a TFT including an active layer, a gate electrode, a source electrode, a drain electrode, a first gate insulating layer and a second gate insulating layer formed between the active layer and the gate electrode, and an interlayer insulating layer formed between the gate electrode and the source electrode and the drain electrode; a pixel electrode formed in an opening of the interlayer insulating layer, the pixel electrode including transparent conductive oxide; a translucent electrode formed in a region corresponding to the pixel electrode, between the first gate insulating layer and the second gate insulating layer; and a capacitor including a lower electrode formed from the same layer as the active layer, and an upper electrode formed from the same layer as the translucent electrode.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: March 31, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Dae-Woo Lee
  • Patent number: 8994060
    Abstract: An object of the invention is to provide a method for manufacturing semiconductor devices that are flexible in which elements fabricated using a comparatively low-temperature (less than 500° C.) process are separated from a substrate. After a molybdenum film is formed over a glass substrate, a molybdenum oxide film is formed over the molybdenum film, a nonmetal inorganic film and an organic compound film are stacked over the molybdenum oxide film, and elements fabricated by a comparatively low-temperature (less than 500° C.) process are formed using existing manufacturing equipment for large glass substrates, the elements are separated from the glass substrate.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: March 31, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yasuhiro Jinbo, Toshiyuki Isa, Tatsuya Honda
  • Patent number: 8987714
    Abstract: An organic light emitting diode display includes a p-doped layer that can obtain high efficiency at low-voltage driving and low current and prevent leakage current by differentially forming the p-doped layer for each pixel.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: March 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ja-Hyun Im, Ji-Hwan Yoon, Byung-Hoon Chun, Jung-Min Moon, Tae-Kwang Sung
  • Patent number: 8987725
    Abstract: A flat panel display device including a substrate including first and second regions; an active layer on the first region of the substrate including a semiconductor material; a lower electrode on the second region of the substrate including the semiconductor material; a first insulating layer on the substrate including the active layer and the lower electrode thereon; a gate electrode on the first insulating layer overlying the active layer and including a first conductive layer pattern and a second conductive layer pattern; an upper electrode on the first insulating layer overlying the lower electrode and including the first conductive layer pattern and the second conductive layer pattern; a second insulating layer on the gate electrode and the upper electrode exposing portions of the active layer and portions of the upper electrode; and a source electrode and a drain electrode connected to the exposed portions of the active layer.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: March 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Hee Kang, Chun-Gi You, Sun Park, Jong-Hyun Park, Yul-Kyu Lee
  • Patent number: 8987773
    Abstract: An organic light emitting diode display includes: a pixel region; and a peripheral region surrounding the pixel region, the peripheral region including: a gate common voltage line; an interlayer insulating film that covers the gate common voltage line and has a common voltage contact hole exposing part of the gate common voltage line; a data common voltage line that is formed on the interlayer insulating film and comes in contact with the gate common voltage line via the common voltage contact hole; barrier ribs that cover the data common voltage line and have common voltage openings exposing part of the data common voltage line; and a peripheral common electrode that is formed on the barrier ribs and comes in contact with the data common voltage line via the common voltage openings, wherein the barrier ribs are formed at positions corresponding to the boundaries with the common voltage contact hole.
    Type: Grant
    Filed: September 14, 2013
    Date of Patent: March 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hae-Yeon Lee, Jin-Gon Oh, Jung-Bae Kim, Jong-Hyun Choi, Keum-Nam Kim
  • Patent number: 8975649
    Abstract: The inventive concept provides light emitting devices and methods of manufacturing a light emitting device. The light emitting device may include a transparent substrate including a first region and a second region, a first transparent electrode disposed on a first surface of the transparent substrate, a second transparent electrode facing and spaced apart from the first transparent electrode, an organic light emitting layer disposed between the first and second transparent electrodes, an assistant electrode disposed between the first and second transparent electrodes and selectively masking the second region, and a light path changing structure disposed on a second surface of the transparent substrate and selectively masking the second region.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: March 10, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jeong Ik Lee, Jin Woo Huh, Hye Yong Chu, Doo-Hee Cho, Jun-Han Han, Jin Wook Shin, Jaehyun Moon, Joo Hyun Hwang, Chul Woong Joo
  • Patent number: 8969859
    Abstract: An object is to provide a display device with a high aperture ratio or a semiconductor device in which the area of an element is large. A channel formation region of a TFT with a multi-gate structure is provided under a wiring that is provided between adjacent pixel electrodes (or electrodes of an element). In addition, a channel width direction of each of a plurality of channel formation regions is parallel to a longitudinal direction of the pixel electrode. In addition, when a channel width is longer than a channel length, the area of the channel formation region can be increased.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: March 3, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Mizuki Sato
  • Patent number: 8963137
    Abstract: An organic electro-luminescence device capable of reducing a resistance of a cathode electrode to enhance brightness uniformity at each location within the device is described. The organic electro-luminescence device includes a bank layer formed over a substrate, the bank layer including a first, second, and third portion. A first electrode is formed between the first and second portions of the bank layer. An auxiliary electrode is formed where at least a part of the auxiliary electrode is formed between the second and third portions of the bank layer. A voltage drop prevention pattern is formed on the auxiliary electrode. An organic material layer formed between the first and second portions of the bank layer. A second electrode formed on the organic material layer, where at least a portion of the second electrode is electrically coupled to the auxiliary electrode.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: February 24, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Joon-Suk Lee, Se-June Kim, JuhnSuk Yoo
  • Patent number: 8956965
    Abstract: A method of manufacturing a display panel having a display part and a terminal part each formed on a different area on a TFT substrate, comprising: a step of forming the display part on the TFT substrate; a step of forming a conductive layer of a conductive metal oxide or a metal on an area where the terminal part is to be formed; a step of forming a chemical vapor deposition layer of an inorganic compound by a chemical vapor deposition method so that the chemical vapor deposition layer covers the display part and comes into contact at least with an upper surface of the conductive layer and so that the upper surface of the conductive layer alters; and a step of removing a portion of the chemical vapor deposition layer on the conductive layer.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: February 17, 2015
    Assignee: Panasonic Corporation
    Inventor: Takashi Osako
  • Patent number: 8952367
    Abstract: Provided is an organic light emitting element having a high light emission efficiency and a low drive voltage. In the organic light emitting element including a positive electrode, a negative electrode and an organic compound layer disposed between the positive electrode and the negative electrode, the organic compound layer includes a thioxanthone compound represented by the following general formula [1].
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: February 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Masanori Seki, Takeshi Sekiguchi, Yosuke Nishide, Akihito Saitoh
  • Patent number: 8933440
    Abstract: An organic electro-luminescence device capable of reducing a resistance of a cathode electrode to enhance brightness uniformity at each location within the device is described. The organic electro-luminescence device includes a bank layer formed over a substrate, the bank layer including a first, second, and third portion. A first electrode is formed between the first and second portions of the bank layer. An auxiliary electrode is formed where at least a part of the auxiliary electrode is formed between the second and third portions of the bank layer. A voltage drop prevention pattern is formed on the auxiliary electrode. An organic material layer formed between the first and second portions of the bank layer. A second electrode formed on the organic material layer, where at least a portion of the second electrode is electrically coupled to the auxiliary electrode.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: January 13, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Joon-Suk Lee, Se-June Kim, JuhnSuk Yoo
  • Patent number: 8933434
    Abstract: A vertical stack including a p-doped GaN portion, a multi-quantum-well, and an n-doped GaN portion is formed on an insulator substrate. The p-doped GaN portion may be formed above, or below, the multi-quantum-well. A dielectric material liner is formed around the vertical stack, and is patterned to physically expose a top surface of the p-doped GaN portion. A selective low temperature epitaxy process is employed to deposit a semiconductor material including at least one elemental semiconductor material on the physically exposed surfaces of the p-doped GaN portion, thereby forming an elemental semiconductor material portion. Metallization is performed on a portion of the elemental semiconductor material portions to form an electrical contact structure that provides effective electrical contact to the p-doped GaN portion through the elemental semiconductor material portion.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: January 13, 2015
    Assignee: International Business Machines Company
    Inventors: Anirban Basu, Bahman Hekmatshoartabari, Davood Shahrjerdi
  • Patent number: 8927978
    Abstract: An object of the invention is to provide an organic electroluminescence (EL) element formed using a relatively stable new electron injection material in an atmosphere of approximately ordinary pressure. An organic EL element of a preferable embodiment is an organic EL element including a supporting substrate, an anode, a light-emitting layer, an electron injection layer, and a cathode in this order, in which the electron injection layer is formed by applying an ink including an ionic polymer so as to form a film, and the cathode is formed by applying an ink including a material which forms the cathode so as to form a film or transferring a conductive thin film which forms the cathode.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: January 6, 2015
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shoji Mima, Yoshinobu Ono
  • Patent number: 8895970
    Abstract: An organic light-emitting display device and a method of manufacturing the same. The organic light-emitting display device includes: an active layer that is formed by patterning a semiconductor layer formed by laser crystallization; a gate electrode that is disposed to correspond to a channel area of the active layer; a first insulating layer that is disposed between the active layer and the gate electrode; a second insulating layer that is disposed on the gate electrode; and first test patterns that are formed on the second insulating layer and contact source and drain regions of the active layer and the gate electrode, respectively.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: November 25, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Ho Kim, Min-Chul Shin, Do-Young Kim
  • Patent number: 8890174
    Abstract: A light emitter and a method of manufacturing a light emitter. The light emitter includes a first electrode, a charge injection transport layer, a light-emitting layer, and a second electrode that are layered in this order. At least the light-emitting layer is defined by a bank that has at least one liquid-repellent surface. The charge injection transport layer is principally composed of a metal compound that is more liquid-philic than the surface of the bank. The charge injection transport layer includes a recessed structure so that in a region defined by the bank, the charge injection transport layer is lower than a bottom surface of the bank.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: November 18, 2014
    Assignee: Panasonic Corporation
    Inventors: Kenji Harada, Takayuki Takeuchi, Seiji Nishiyama, Takahiro Komatsu
  • Patent number: 8890173
    Abstract: A light emitter and method for manufacturing a light emitter. The light emitter includes a first electrode, a charge injection transport layer, a light-emitting layer, and a second electrode that are layered in this order. At least the light-emitting layer is defined by bank. The charge injection transport layer includes a recessed portion having an inner bottom surface in contact with a bottom surface of the light-emitting layer and an inner side surface continuous with the inner bottom surface and in contact at least partly with a side surface of the light-emitting layer. The inner side surface has a lower edge continuous with the inner bottom surface, and an upper edge is aligned with a portion of a bottom periphery of the bank, the portion being in contact with the light-emitting layer or in contact with a bottom surface of the bank.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: November 18, 2014
    Assignee: Panasonic Corporation
    Inventors: Kenji Harada, Takayuki Takeuchi, Seiji Nishiyama, Takahiro Komatsu
  • Patent number: 8884396
    Abstract: According to one embodiment, a first back surface of a first substrate and a second front surface of a second substrate are jointed together so as to connect a first conductor with a second conductor. The first conductor includes a portion having a diameter equal to that of a first gap formed above a first metal layer in a range between the first metal layer and a first front surface, and a portion having a diameter greater than that of the first gap and smaller than an outer diameter of the first metal layer in a range between the first metal layer and the first back surface. A first insulating layer has a gap formed above the first metal layer, the gap being greater than the first gap and smaller than the outer diameter of the first metal layer.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: November 11, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Mitsuyoshi Endo
  • Patent number: 8878164
    Abstract: The invention relates to an organic light-emitting diode, known under the abbreviation OLED, and to a method for the production of such an organic light-emitting diode. According to the invention, an OLED or organic light-emitting diode having an emitter layer (5) is produced, said emitter layer emitting white light in particular. The emitter layer (5) is arranged within a lossy, optical resonator. The optical path length between the two reflecting layers of the resonator determines the color of the light emitting from the optical resonator and, consequently, from the light-emitting diode. In order to be able to create a variety of colors, there must be different optical path lengths between the two reflecting surfaces. The correspondingly different distances can be produced in only one work step, in contrast to the prior art, by a photolithographic method.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: November 4, 2014
    Assignee: Universitaet zu Koeln
    Inventors: Malte Gather, Klaus Meerholz
  • Patent number: 8871541
    Abstract: An organic light emitting diode display includes: an organic light emitting display panel including a first substrate including an organic light emitting element and a second substrate combined with the first substrate; a touch substrate combined with the organic light emitting display panel; a first electrode pattern having a plurality of pads, formed on the touch substrate, and connected by an access unit in a first direction; a second electrode pattern having a plurality of pads; a wire electrically connected to one of the first electrode pattern and the second electrode pattern; an insulation layer formed on the first and second electrode patterns and including a contact hole; and a connection electrode disposed in the contact hole and electrically connecting pads of the second electrode pattern in a second direction crossing the first direction, wherein the first electrode pattern, the second electrode pattern, and the wire are formed simultaneously on the same plane.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: October 28, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Woo-Sik Jun, Won-Kyu Kwak
  • Patent number: 8872168
    Abstract: Disclosed are an organic light emitting display that enables realization of a thin film shape and flexibility, and exhibits superior contact properties in touch pads based on an improved structure, and a method for manufacturing the same, wherein a distance between the outermost surface of the touch pad portion and the outermost surface of the dummy pad portion in the touch pad portion is smaller than the distance in a neighboring portion adjacent to the touch pad portion.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: October 28, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Ho-Won Choi, Jin-Yeol Kim
  • Patent number: 8866160
    Abstract: A hole injection layer and a light-emitting layer are laminated between a first electrode and a second electrode of a light emitter. A bank defines an area in which the light-emitting layer is to be formed. In the area defined by the bank, a hole injection layer has a recess in an upper surface thereof. An upper peripheral edge of the recess is covered with a part of the bank.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: October 21, 2014
    Assignee: Panasonic Corporation
    Inventor: Seiji Nishiyama
  • Patent number: 8859309
    Abstract: Provided are an organic light emitting diode and a method of fabricating the same. The organic light emitting diode may include a light-scattering layer, a first electrode, an organic light-emitting layer, and a second electrode, which are sequentially stacked on a substrate, wherein the light-scattering layer may include uneven shaped nanostructures having irregular width and spacing. The method of fabricating the organic light emitting diode may include sequentially stacking a light-scattering medium layer and a metal alloy layer on a substrate, heat treating the metal alloy layer to form etching mask patterns, etching the light-scattering medium layer by using the etching mask patterns to form a light-scattering layer, removing the etching mask patterns, and forming a planarizing layer on the light-scattering layer.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: October 14, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventor: Jin Wook Shin
  • Patent number: 8860034
    Abstract: An organic light-emitting display apparatus including: a first substrate; a second substrate disposed to face the first substrate; a first electrode disposed between the first substrate and the second substrate and a second electrode disposed to face the first electrode; and an organic light-emitting layer disposed between the first electrode and the second electrode, wherein at least one of the first electrode and the second electrode is a reflective electrode, and an optical property modification layer having at least one optical property modified from that of the reflective electrode is formed on a surface of the reflective layer.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: October 14, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Valeriy Prushinskiy, Len Kaplan, Se-Ho Cheong, Won-Sik Hyun, Byoung-Seong Jeong, Jang-Seok Ma
  • Patent number: 8835911
    Abstract: A light emitting element has an anode, a cathode, a light emitting layer which is provided between the anode and the cathode and emits light by energizing the anode and the cathode, and a functional layer (a hole injecting layer and a hole transporting layer) which is provided between the anode and the light emitting layer in contact therewith and has a function of transporting a hole, in which the hole injecting layer and the hole transporting layer each are constituted including an electron transporting material having electron transporting properties. The content of the electron transporting material contained in the hole injecting layer and the content thereof contained in the hole transporting layer are different from each other.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: September 16, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Hidetoshi Yamamoto, Tetsuji Fujita
  • Patent number: 8829501
    Abstract: The invention relates to an organic light emitting device having an electrode, a counter electrode, at least one light emitting region that includes a stack of organic layers between the electrode and the counter electrode, which stack of organic layers is provided between a metal substrate and a transparent encapsulation, a current supply layer, electrically connected to the electrode or the counter-electrode, the current supply layer being partially provided overlapping an electric insulating layer provided in direct contact with the metal substrate, and at least one electrical feedthrough through the metal substrate and through the electric insulating layer, which electrical feedthrough provides an electrical connection to the current supply layer and is electrically isolated from the metal substrate.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: September 9, 2014
    Assignee: Novaled AG
    Inventor: Pierre Paul Jobert
  • Patent number: 8816338
    Abstract: There are provided an electrode foil which has all the functions of a supporting base material, an electrode and a reflective layer and also has a superior thermal conductivity; and an organic device using the same. The electrode foil comprises a metal foil, wherein the electrode foil has at least one outermost surface which is an ultra-smooth surface having an arithmetic average roughness Ra of 10.0 nm or less as measured in accordance with JIS B 0601-2001.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: August 26, 2014
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Yoshinori Matsuura, Nozomu Kitajima, Naohiko Abe
  • Patent number: 8796701
    Abstract: A display panel apparatus includes a planarizing film formed on a substrate, at least one pixel including a lower electrode; an organic EL layer; and an upper electrode which are formed above the planarizing film; an auxiliary electrode electrically connected to the upper electrode which is the opposite to the lower electrode; a display section including a plurality of the pixels; an electrode plate electrically connected to the auxiliary electrode and arranged to cover the planarizing film outside the display section, and the electrode plate has a hole exposing a part of a surface of the planarizing film. Furthermore, the display panel apparatus also includes a hole injection layer which is an inorganic material layer made of an inorganic material and covering the hole.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: August 5, 2014
    Assignee: Panasonic Corporation
    Inventors: Seiji Nishiyama, Takashi Osako, Shinya Ono
  • Patent number: 8791487
    Abstract: A transparent conductive electrode stack containing a work function adjusted zinc oxide is provided. Specifically, the transparent conductive electrode stack includes a layer of zinc oxide and a layer of a work function modifying material. The presence of the work function modifying material in the transparent conductive electrode stack shifts the work function of the layer of zinc oxide to a higher value for better hole injection into the OLED device as compared to a transparent conductive electrode that includes only a layer of zinc oxide and no work function modifying material.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: July 29, 2014
    Assignee: International Business Machines Corporation
    Inventors: Keith E. Fogel, Ning Li, Devendra K. Sadana
  • Patent number: 8791565
    Abstract: There are provided an electrode foil which has all the functions of a supporting base material, an electrode and a reflective layer and also has a superior thermal conductivity; and an organic device using the same. The electrode foil comprises a metal foil, wherein the electrode foil has at least one outermost surface which is an ultra-smooth surface having an arithmetic average roughness Ra of 10.0 nm or less as measured in accordance with JIS B 0601-2001.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: July 29, 2014
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Yoshinori Matsuura, Nozomu Kitajima, Naohiko Abe
  • Patent number: 8790937
    Abstract: A transparent conductive electrode stack containing a work function adjusted zinc oxide is provided. Specifically, the transparent conductive electrode stack includes a layer of zinc oxide and a layer of a work function modifying material. The presence of the work function modifying material in the transparent conductive electrode stack shifts the work function of the layer of zinc oxide to a higher value for better hole injection into the OLED device as compared to a transparent conductive electrode that includes only a layer of zinc oxide and no work function modifying material.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: July 29, 2014
    Assignee: International Business Machines Corporation
    Inventors: Keith E. Fogel, Ning Li, Devendra K. Sadana
  • Patent number: 8785224
    Abstract: An organic light emitting display apparatus and method of manufacturing the same to improve an image quality of the organic light emitting display apparatus. The organic light emitting display apparatus includes: a first electrode formed on a substrate; an intermediate layer disposed on the first electrode, the intermediate layer having an organic emission layer; and a second electrode formed on the intermediate layer, wherein the first electrode includes an etching unit facing the intermediate layer.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: July 22, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Moo Soon Ko, Hee-Seong Jeong, Chi Wook An, Ok-Byoung Kim
  • Patent number: 8772762
    Abstract: Provided is an organic electroluminescent device including: a substrate (11, 101); a first electrode (12, 102) formed on the substrate (11, 101) and including a pixel region; a partition wall (23, 203) formed on the substrate (11, 101), partitioning the first electrode (12, 102), and including a surface with a recessed and projected form; a luminescent medium layer (19, 109) formed on the pixel region and the partition wall (23, 203), a film thickness of the partition wall (23, 203) being uneven according to the recessed and projected form; and a second electrode (17, 107) formed on the luminescent medium layer (19, 109).
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: July 8, 2014
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Shingo Kaneta, Yuki Yasu, Ryo Syoda, Noriko Morikawa, Eiichi Kitazume
  • Patent number: 8772082
    Abstract: To provide a light-emitting element, a light-emitting device, and an electronic device each formed using the organometallic complex represented by General Formula (G1) as a guest material and a low molecule compound as a host material.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: July 8, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Nobuharu Ohsawa, Satoshi Seo
  • Patent number: 8735876
    Abstract: An organic light emitting diode display, which includes: a first electrode; a second electrode facing the first electrode; and an emission layer interposed between the first electrode and the second electrode. Herein the first electrode includes: a first layer including a material having a work function of about 4.0 eV or less and an electron injection material; and a second layer including a material having a resistivity of about 10 ??cm or less. The first layer is disposed between the second layer and the emission layer.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: May 27, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyu-Hwan Hwang, Seok-Gyu Yoon, Jae-Heung Ha, Young-Woo Song, Jong-Hyuk Lee, Sung-Chul Kim
  • Patent number: 8729593
    Abstract: Provided is an electronic device having a long life and a large effective area. Furthermore, provided is an optical device capable of controlling specular visibility. And provided is a substrate for the optical device, which includes a scattering layer having excellent scattering properties and having a desired refractive index while retaining surface smoothness. Further, there is provided a substrate for the electronic device, which includes a substrate having first and second main surfaces facing each other and an electrode pattern formed on the first main surface of the substrate, in which the first main surface of the first and second main surfaces is a surface which forms waviness made up of curved faces, the waviness of the surface has a wavelength R?a of greater than 50 ?m and a ratio Ra/R?a of waviness roughness Ra of the surface which forms waviness to the wavelength R?a of the waviness is from 1.0×10?4 to 3.0×10?2.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: May 20, 2014
    Assignee: Asahi Glass Company, Limited
    Inventors: Nobuhiro Nakamura, Nao Ishibashi
  • Patent number: 8723196
    Abstract: Light-emitting elements have a problem that their light-extraction efficiency is low due to scattered light or reflected light inside the light-emitting elements. The light-extraction efficiency of the light-emitting elements needs to be enhanced by a new method. According to the present invention, a light-emitting element includes a first layer generating holes, a second layer including a light-emitting layer for each emission color and a third layer generating electrons between an anode and a cathode, and the thickness of the first layer is different depending on each layer including the light-emitting layer for each emission color. A layer in which an organic compound and a metal oxide are mixed is used as the first layer, and thus, the driving voltage is not increased even when the thickness is increased, which is preferable.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: May 13, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Daisuke Kumaki, Hisao Ikeda, Junichiro Sakata