Electrode (epo) Patents (Class 257/E51.019)
  • Publication number: 20120032153
    Abstract: The present invention relates to an improved organic light-emitting diode (OLED) device which comprises a first conductive layer, a first light-emitting material layer, a second light-emitting material layer, a second conductive layer, and at least one third light-emitting material layer, wherein the first conductive layer is adapted for being an anode substrate, moreover, by way of evaporation process, the first light-emitting material layer, the third light-emitting material layer, the second light-emitting material layer, and the second conductive layer are formed on the anode substrate in turns. Besides, the phenomenon of efficiency roll-off occurring in a high luminance region of the OLED device may be improved by adding the third light-emitting material layer between the first light-emitting material layer and the second light-emitting material layer.
    Type: Application
    Filed: June 9, 2011
    Publication date: February 9, 2012
    Applicant: NATIONAL TSING-HUA UNIVERSITY
    Inventors: Jwo-Huei Jou, Po-Shien Wu
  • Publication number: 20120025245
    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: Application
    Filed: July 25, 2011
    Publication date: February 2, 2012
    Inventors: Nobuhiro Nakamura, Nao Ishibashi
  • Publication number: 20120018705
    Abstract: A method of manufacturing an organic EL element having a corrugated structure, the organic EL element comprising a transparent supporting substrate, a transparent electrode, an organic layer, and a metal electrode, the method comprises the steps of: laminating on the transparent supporting substrate a curable-resin layer having concavity and convexity formed thereon in a periodic arrangement in a way that a curable resin is applied onto the transparent supporting substrate, the curable resin is then cured with a master block being pressed thereto, and thereafter the master block is detached; and obtaining an organic EL element by laminating on the curable-resin layer the transparent electrode, the organic layer, and the metal electrode individually so that a shape of the concavity and convexity formed on a surface of the curable-resin layer can be maintained.
    Type: Application
    Filed: July 25, 2008
    Publication date: January 26, 2012
    Inventors: Hideo Takazoe, Fumito Araoka, Soon Moon Jeong, Suzushi Nishimura, Goro Suzaki
  • Publication number: 20120007055
    Abstract: An organic light emitting diode device includes a first electrode, a second electrode, and an emission layer disposed between the first and second electrodes. The first electrode includes a first layer and a second layer. The first layer includes ytterbium (Yb), samarium (Sm), lanthanum (La), yttrium (Y), calcium (Ca), strontium (Sr), cesium (Cs), ruthenium (Ru), barium (Ba), or a combination thereof and having a thickness ranging from about 40 to 200 ?. The second layer includes silver (Ag), aluminum (Al), copper (Cu), chromium (Cr), or a combination thereof and having a thickness ranging from about 100 to 250 ?.
    Type: Application
    Filed: December 16, 2010
    Publication date: January 12, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Yong-Tak KIM, Won-Jong Kim, Ji-Young Choung, Joon-Gu Lee, Jin-Baek Choi, Kyu-Hwan Hwang, Il-Soo Oh, Jong-Hyuk Lee
  • Publication number: 20120007068
    Abstract: An organic light emissive device comprising: a first electrode; a second electrode; and an organic light emissive region between the first and second electrodes comprising an organic light emissive material which has a peak emission wavelength, wherein at least one of the electrodes is transparent and comprises a composite of a charge injecting metal and another material which is codepositable with the charge injecting metal, the other material having a different refractive index to that of the charge injecting metal and wherein the other material has a lower degree of quenching at the peak emission wavelength than the charge injecting metal whereby quenching of excitons by the at least one electrode is reduced, the charge injecting metal comprising either a low work function metal having a work function of no more than 3.5 eV or a high work function metal having a work function of no less than 4.5 eV.
    Type: Application
    Filed: September 22, 2011
    Publication date: January 12, 2012
    Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventors: Euan C. Smith, Matthew Roberts, William Young, Clare Louise Foden
  • Publication number: 20120007057
    Abstract: An organic light-emitting display device including a substrate; at least one thin-film transistor (TFT) formed on the substrate; a planarizing layer covering the TFT; a pixel electrode, which is formed on the planarizing layer and is connected to the TFT; a protective layer surrounding an edge of the pixel electrode; a pixel defining layer (PDL), which has an overhang (OH) structure protruding more than the top surface of the protective layer, covers the protective layer and the edge of the pixel electrode, and exposes a portion of the pixel electrode surrounded by the protective layer; a counter electrode facing the pixel electrode; and an intermediate layer, which is interposed between the pixel electrode and the counter electrode and includes a light-emitting layer and at least one organic layer, where the thickness of the intermediate layer is greater than the thickness of the protective layer.
    Type: Application
    Filed: April 29, 2011
    Publication date: January 12, 2012
    Inventors: Jong-Hyun Choi, Jong-Yun Kim, Jin-Goo Kang, Dae-Hyun Noh
  • Patent number: 8093587
    Abstract: An organic EL device includes a light-emitting element having a first electrode disposed above a substrate, a second electrode arranged above the first electrode, and a light emission functional layer arranged between the first and second electrodes. The second electrode includes a mixture layer composed of a mixture of an electron-injecting material and a reducing material for reducing the electron-injecting material and a transparent electrically conductive layer formed on the mixture layer.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: January 10, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Koya Shiratori, Hidekazu Kobayashi
  • Publication number: 20120001156
    Abstract: An organic light emitting diode display is disclosed.
    Type: Application
    Filed: March 31, 2011
    Publication date: January 5, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Kyu-Sik CHO, Won-Kyu LEE, Tae-Hoon YANG, Byoung-Kwon CHOO, Sang-Ho MOON, Bo-Kyung CHOI, Yong-Hwan PARK, Joon-Hoo CHOI, Min-Chul SHIN, Yun-Gyu LEE
  • Publication number: 20110315966
    Abstract: An organic electroluminescent display device (10) includes: a substrate (11); a first electrode (14) which is provided on the substrate (11), and in which at least a surface portion located on an opposite side from the substrate (11) is made of silver or silver alloy; and an organic electroluminescent layer (15) provided on the first electrode (14).
    Type: Application
    Filed: February 17, 2010
    Publication date: December 29, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Ken Okamoto
  • Publication number: 20110309349
    Abstract: The present invention relates to an anode structure for use in a top-emission type organic EL device which comprises a laminated structure comprising an anode layer made of at least one selected from the group consisting of aluminum, aluminum alloys, silver and silver alloys; and a buffer layer directly provided on the anode layer and made of an electrically conductive amorphous carbon having a hydrogen concentration of 15 at. % or less. According to the present invention, there is provided an anode structure which is superior in alkali resistance and can lengthen lifetime of an organic EL device as well as can ensure a high work function suitable for an anode for a high-luminance, high-power-efficient organic EL device.
    Type: Application
    Filed: July 9, 2010
    Publication date: December 22, 2011
    Applicant: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Yoshinori Matsuura, Nobuyuki Kawai, Takashi Kubota
  • Publication number: 20110309347
    Abstract: An organic electroluminescence device includes a cathode, a stacked structure provided on the cathode and including an organic layer that includes an organic light emitting layer, and a transparent anode provided on the stacked structure, The transparent anode includes a metal oxide and a conductive polymer.
    Type: Application
    Filed: June 17, 2011
    Publication date: December 22, 2011
    Inventors: YOSHINORI OKADA, HIROYUKI TAKAHASHI
  • Publication number: 20110303906
    Abstract: The invention relates to a transparent organic light emitting diode (OLED) (1), comprising: a substrate material (2) with a top face (2a) and a bottom face (2b), whereas at least on the top face (2a) is arranged at least one OLED-layer system with a first electrode layer (3), a second electrode layer (4) and an organic light emitting layer system (5), arranged in between said first electrode layer (3) and said second electrode layer (4), whereas said OLED (1) is performed to emit light via the top face (2a) and via the bottom face (2b) and whereas the top face (2a) and the bottom face (2b) of said OLED (1) feature at least one bright lucent area (6) and at least one dark lucent area (7).
    Type: Application
    Filed: December 11, 2009
    Publication date: December 15, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventor: Claudia M. Goldmann
  • Publication number: 20110297944
    Abstract: An organic light-emitting display apparatus and a method of manufacturing the same are disclosed.
    Type: Application
    Filed: May 6, 2011
    Publication date: December 8, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Jong-Hyun Choi, Sung-Ho Kim, Joon-Hoo Choi
  • Publication number: 20110291086
    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: Application
    Filed: August 9, 2011
    Publication date: December 1, 2011
    Applicant: PANASONIC CORPORATION
    Inventor: Seiji NISHIYAMA
  • Publication number: 20110291087
    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: Application
    Filed: August 9, 2011
    Publication date: December 1, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Kenji HARADA, Takayuki TAKEUCHI, Seiji NISHIYAMA, Takahiro KOMATSU
  • Publication number: 20110291085
    Abstract: A method for manufacturing a light-emitting element. An anode is formed on a main surface of a substrate. A hole-injection layer is formed at least above the anode. At least the hole-injection layer is covered with a protective film. A bank which is provided with an aperture through which a portion of the protective film is exposed, is formed on the protective film by a wet process. The portion of the protective film exposed through the aperture is removed so that a portion of the hole-injection layer is exposed, a light-emitting layer is formed on the hole-injection layer exposed through the aperture, and a cathode is formed above the light-emitting layer. The protective film is resistant to a fluid used during the wet process.
    Type: Application
    Filed: August 9, 2011
    Publication date: December 1, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Tetsuro KONDOH, Kou SUGANO, Seiji NISHIYAMA
  • Publication number: 20110291091
    Abstract: In an organic light emitting display, a conductive layer is formed on the bottom surface of a substrate, and the conductive layer is used as a wiring line for supplying a power source, and as the electrode of a capacitor. Therefore, it is possible to easily secure the aperture ratio of a pixel, to easily solve the problem of IR drops by controlling the area or thickness of the conductive layer, and to easily secure the electrostatic capacity of the capacitor. In particular, in the case of a front surface light emitting structure, since a capacitor of a metal/insulating layer/metal (MIM) structure may be formed in a light emitting region, enough aperture ratio and electrostatic capacity may be secured. Therefore, a high resolution organic light emitting display may be easily realized, and enough aperture ratio and electrostatic capacity are secured so as to realize high picture quality.
    Type: Application
    Filed: March 29, 2011
    Publication date: December 1, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jong-Yun Kim, Il-Jeong Lee, Choong-Youl Im
  • Publication number: 20110284825
    Abstract: Disclosed is an organic light-emitting diodes including a ZnO nanoparticle and an ionic group. The organic light-emitting diodes according to the present invention includes: a substrate formed of glass or a flexible plastic material; an anode formed on the substrate; a hole transport layer formed on the anode; an emissive layer formed on the hole transport layer; an electron transport layer being formed on the emissive layer and including a ZnO nanoparticle; an electron injection layer being formed on the electron transport layer and including an ionic group; and a cathode formed on the electron injection layer.
    Type: Application
    Filed: December 28, 2010
    Publication date: November 24, 2011
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Minyang Yang, Hongseok Youn
  • Publication number: 20110278557
    Abstract: An organic light emitting diode has a reflection electrode, an organic layer with a luminous point, a transparent electrode, an output-side substrate, and a light scattering layer in contact with the output-side substrate. The light scattering layer is made of a base material and particles contained therein. These particles are higher in refractive index than the base material and the output-side substrate. The luminous point emits light at an emission peak wavelength ? (nm). Letting a height from an interface between the electrode and the organic layer to the luminous point be “a×d” (where d (nm) is the thickness of the organic layer, 0<a<1), the height satisfies: (2m?155/180)?/4/n/cos 35°?a×d?(2m?155/180)?/4/n/cos 50° (where n is the refractive index of the organic layer, and m is an integer larger than or equal to 1).
    Type: Application
    Filed: May 5, 2011
    Publication date: November 17, 2011
    Inventors: Akitoyo KONNO, Shingo Ishihara, Hiroki Kaneko, Masaaki Fujimori
  • Publication number: 20110278615
    Abstract: An organic light-emitting display device and a method of its manufacture are provided, whereby manufacturing processes are simplified and display quality may be enhanced. The display device includes: an active layer of a thin film transistor (TFT), on a substrate and including a semiconducting material; a lower electrode of a capacitor, on the substrate, doped with ion impurities, and including a semiconducting material; a first insulating layer on the substrate to cover the active layer and the lower electrode; a gate electrode of the TFT, on the first insulating layer; a pixel electrode on the first insulating layer; an upper electrode of the capacitor, on the first insulating layer; source and drain electrodes of the TFT, electrically connected to the active layer; an organic layer on the pixel electrode and including an organic emission layer; and a counter electrode facing the pixel electrode, the organic layer between the counter electrode and the pixel electrode.
    Type: Application
    Filed: March 22, 2011
    Publication date: November 17, 2011
    Inventors: Dae-Hyun No, Jong-Hyun Choi, Gun-Shik Kim, June-Woo Lee
  • Publication number: 20110248253
    Abstract: The electroluminescence element comprises the light-reflective-electrode separated from the luminous point by distance “d” satisfying the following formula. nd = a × ? 4 ? { 2 ? m + ? ? } ? ? wherein ? ? ? = tan - 1 ? { 2 ? ( n 1 ? k 2 - n 2 ? k 1 ) n 1 2 - n 2 2 + k 1 2 - k 2 2 } ? is a wavelength of the light from the light emission layer. N is a refractive index of a certain layer between the luminous point and the light-reflective-electrode at ?. n1 and k1 is a refractive index and the extinction coefficient of the certain layer at ?. n2 and k2 is a refractive index and the extinction coefficient of the light-reflective-electrode at ?. m is 0 or 1. When “m” is 0, “a” satisfies the following formula. ?1.17×norg/nEML+1.94?a??0.16×norg/nEML+2.33 When “m” is 1, “a” satisfies the following formula. 0.28×norg/nEML+0.75?a?2.85×norg/nEML?1.
    Type: Application
    Filed: December 18, 2009
    Publication date: October 13, 2011
    Applicant: Panasonic Electric Works Co., Ltd.
    Inventors: Masahito Yamana, Masahiro Nakamura
  • Publication number: 20110248252
    Abstract: An organic EL display element (1) includes: an insulating substrate (3); a first electrode (6) formed on the substrate (3); an organic layer (7) having an emitting layer, formed on the first electrode (6); and a second electrode (8) formed on the organic layer (7). A conductive member (2) made of a material higher in thermal conductivity and higher in electrical conductivity than the substrate (3) is formed on a surface (3a) of the substrate (3) opposite to the surface on which the first electrode (6) is formed.
    Type: Application
    Filed: August 17, 2009
    Publication date: October 13, 2011
    Inventors: Yasuyuki Ohnishi, Yoshimasa Fujita, Hideki Uchida
  • Publication number: 20110240967
    Abstract: An organic light emitting diode device, including a first electrode, a second electrode facing the first electrode, and a light emitting member disposed between the first electrode and the second electrode, the light emitting member including at least one light emitting unit. At least one of the light emitting units may include a first hole injection layer, a second hole injection layer, a hole transport layer, and an emission layer, and a difference between a HOMO energy level of the first hole injection layer and a LUMO energy level of the second hole injection layer may be smaller than about 0.5 eV.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 6, 2011
    Inventors: Young-Shin Lee, Jae-Kook Ha, Sung-Soo Lee
  • Publication number: 20110233569
    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: Application
    Filed: February 17, 2011
    Publication date: September 29, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Moo Soon KO, Hee-Seong Jeong, Chi Wook An, Ok-Byoung Kim
  • Publication number: 20110215367
    Abstract: An organic EL element has a substrate, a first electrode, an organic compound layer, and a second electrode. The second electrode has a base layer and a metal layer, and light generated in this organic EL element is transmitted through the second electrode. The base layer is closer to the substrate than the metal layer and is a mixed layer containing lithium, oxygen, and magnesium, whereas the metal layer contains silver and has a thickness in the range of 5.0 to 20 nm, inclusive.
    Type: Application
    Filed: March 1, 2011
    Publication date: September 8, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takayuki Ito, Naoyuki Ito, Shoji Sudo, Takayuki Sumida
  • Publication number: 20110204342
    Abstract: An organic light-emitting display device includes a substrate, a first electrode on the substrate, the first electrode including a reflection film, a hole injection layer on the first electrode, a hole transport layer on the hole injection layer, an emission layer on the hole transport layer, an electron injection transport layer on the emission layer, a second electrode on the electron injection transport layer, the second electrode including a semi-transmissive reflective material, and a control layer positioned between a lower surface of the hole injection layer and an upper surface of the hole transport layer, the control layer including an organic material and having a refractive index lower than that of an adjacent layer.
    Type: Application
    Filed: February 23, 2011
    Publication date: August 25, 2011
    Inventors: Hee-Seong Jeong, Soon-Ryong Park, Woo-Suk Jung
  • Publication number: 20110204345
    Abstract: A problem to be solved of the present invention is to provide a liquid composition for an organic semiconductor device having good coating property, wherein the lifetime of the function of an organic semiconductor device is prolonged when an organic layer is formed from the liquid composition for an organic semiconductor device, and a process for producing the liquid composition. A mean for solving the problem is a process for producing a liquid composition for an organic semiconductor device comprising a step of dissolving an organic compound which is solid at 1 atm and 25° C. in an organic solvent which is liquid at 1 atm and 25° C. and has a halogen compound concentration of not more than 100 ppm by weight.
    Type: Application
    Filed: January 13, 2011
    Publication date: August 25, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Hidenobu KAKIMOTO
  • Publication number: 20110198598
    Abstract: An organic light emitting display apparatus includes a substrate, a thin film transistor (TFT) on the substrate, a first electrode on the TFT in each of a plurality of pixels, a first pixel define layer covering edges of the first electrode, the first pixel define layer including at least two layers, a second pixel define layer on the first pixel define layer, an organic emission layer on the first electrode, and a second electrode disposed to face the first electrode.
    Type: Application
    Filed: February 16, 2011
    Publication date: August 18, 2011
    Inventors: YOUNG-IL KIM, Tae-Yong Noh, Dong-Won Lee, Won-Pil Lee
  • Patent number: 7999254
    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: November 13, 2009
    Date of Patent: August 16, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Nobuharu Ohsawa, Satoshi Seo
  • Publication number: 20110193799
    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: Application
    Filed: November 18, 2010
    Publication date: August 11, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Woo-Sik Jun, Won-Kyu Kwak
  • Publication number: 20110186905
    Abstract: The invention relates to an OLED device with a substrate (1), a conductor layer (3), an organic layer (2) as an active layer, and a shunt line (4) as an additional current distribution channel, wherein the conductor layer (3) is provided on the substrate (1), wherein the shunt line (4) is provided on the conductor layer (3), wherein the shunt line (4) is at least partially covered by an electrically insulating layer (5), and wherein the organic layer (2) is provided on top of the conductor layer (3) and the covered shunt line (4). In this way, such an OLED device is provided which prevents short circuit formation and, thus, device failure.
    Type: Application
    Filed: September 25, 2009
    Publication date: August 4, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Holger Schwab, Edward W. A. Young, Jeroen Buul
  • Publication number: 20110189801
    Abstract: Embodiments of the invention explore solution-based deposition of a cathode for an OLED structure. A typical embodiment of the invention may include a method performed according to the following steps: Glass substrates including deposited Indium Tin-Oxide (ITO) are prepared. The substrates are subjected to ultrasonic cleaning with deionized water and organic solvents. Features are etched into the ITO using high concentration HCl solution. A hole injecting layer is deposited by spin coater. The layer is annealed on a hot plate, then a polyphenylene vinylene (PPV) polymer is deposited by spin coater and annealed on a hot plate. Low work function cathode metal is then deposited in an electroless solution and annealed on a hot plate. The device is encapsulated.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 4, 2011
    Inventors: Marian Tzolov, Stephen Swiontek
  • Publication number: 20110180836
    Abstract: The present invention relates to an organic light emitting device that has a structure which is capable of maximally extracting light generated in the organic light emitting device to the outside. In detail, the organic light emitting device according to the present invention is characterized in that the organic light emitting device includes a high refractive index layer or an electrode that includes a light reuse pattern.
    Type: Application
    Filed: September 25, 2009
    Publication date: July 28, 2011
    Inventor: Se-Hwan Son
  • Publication number: 20110175123
    Abstract: An OLED display including: a substrate main body; a first transflective electrode formed on the substrate main body; an organic emission layer formed on the first transflective electrode; a second transflective electrode formed on the organic emission layer; and a dual brightness enhancement film (DBEF) disposed on a dual brightness enhancement film (DBEF) on at least one of a side of the first transflective electrode facing away from the organic emission layer, or a side of the second transflective electrode facing away from the organic emission layer.
    Type: Application
    Filed: October 22, 2010
    Publication date: July 21, 2011
    Inventors: Sung-Soo Koh, Hee-Seong Jeong, Chul-Woo Jeong, Soon-Ryong Park, Woo-Suk Jung, Il-Ryong Cho, Tae-Kyu Kim, Jae-Yong Kim
  • Publication number: 20110175064
    Abstract: A light emitting device may include a first electrode on a substrate, a first emission layer on the first electrode, a buffer layer on the first emission layer, a middle electrode on the buffer layer, a second emission layer on the middle electrode, and a second electrode on the second emission layer. The buffer layer may include a material selected from the group consisting of a metal oxide, a polyelectrolyte, and a combination thereof. The first emission layer, buffer layer, middle electrode, and second emission layer may be fabricated using a wet process.
    Type: Application
    Filed: January 21, 2010
    Publication date: July 21, 2011
    Inventors: Do-Hwan Kim, Sang-Yoon Lee, Kwanghee Lee, Sung Heum Park, Shinuk Cho, Jae-kwan Lee, Alan J. Heeger
  • Publication number: 20110175094
    Abstract: An organic light emitting diode display includes a display substrate, a sealing member disposed to face the display substrate, a sealant disposed between the display substrate and the sealing member, the sealant being configured to attach the display substrate and the sealing member to each other, a plurality of conductive wires on the display substrate, the conductive wires overlapping the sealant, and at least one short-circuit blocking layer between the conductive wires.
    Type: Application
    Filed: January 20, 2011
    Publication date: July 21, 2011
    Inventors: Zail Lhee, Ji-Yeon Baek, Seung-Yo Yang
  • Publication number: 20110175073
    Abstract: An organic light emitting display device having a uniform thin film in a sub-pixel region, and a method of manufacturing the organic light emitting display device. The organic light emitting display device includes a substrate, a pixel electrode disposed on the substrate, and a pixel define layer disposed on the substrate and exposing the pixel electrode, The surface of the pixel electrode is saw toothed or rough in shape.
    Type: Application
    Filed: January 19, 2011
    Publication date: July 21, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventor: Seung-Wook CHANG
  • Publication number: 20110168985
    Abstract: An organic light emitting diode display device and a method of manufacturing the same are disclosed. The organic light emitting diode display device includes a substrate having an emission section and anon-emission section, a semiconductor layer located on the substrate, a gate dielectric layer located over an entire front surface of the substrate, a gate electrode located in correspondence to the semiconductor layer, a dielectric layer located over the entire front surface of the substrate, source and drain electrodes and a first electrode located on the dielectric layer and electrically connected to the semiconductor layer, a pixel definition layer exposing a part of the first electrode, a spacer located on the pixel definition layer and located on the non-emission section of the substrate, an organic film layer located on the first electrode, and a second electrode located over the entire front surface of the substrate.
    Type: Application
    Filed: December 29, 2010
    Publication date: July 14, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Do-Hyun Kwon, Choong-Youl Im, Dae-Hyun No, Jong-Mo Yeo, Ju-Won Yoon, Il-Jeong Lee, Song-Yi Jeon, Cheol-Ho Yu
  • Patent number: 7968887
    Abstract: An active matrix circuit substrate including data lines, select lines, and pixel circuits electrically coupled with a data line and two adjacent select lines. The pixel circuits include a thin film transistor having a gate electrode coupled with one of the two adjacent select lines and a storage capacitor having a second electrode coupled with the other select line adjacent to the select line to which the gate electrode is coupled. The gate electrode of a first pixel circuit and the second electrode of the storage capacitor of the adjacent pixel circuit are the same structure having a line shape.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: June 28, 2011
    Assignees: Samsung Mobile Display Co., Ltd., Samsung SDI Germany GmbH
    Inventors: Arthur Mathea, Jorg Fischer
  • Publication number: 20110151607
    Abstract: A method for manufacturing an OLED and an electrode for an OLED, said electrode comprising a surface comprising a first dielectric nanostructuration and a second metal nanostructuration, on a substrate, wherein the following successive steps are carried out: a) a metal layer is deposited on a planar surface of a substrate; b) on the metal layer, a dielectric layer comprising said first dielectric nanostructuration which includes cavities which extend from the upper surface of the dielectric layer as far as the upper surface of the metal layer, is prepared; c) the cavities of the first dielectric nanostructuration are at least partially filled with a metal, whereby the second metal nanostructuration is obtained.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 23, 2011
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Stefan Landis, Nicolas Chaix, Valentina Ivanova-Hristova, Carole Pernel
  • Publication number: 20110147787
    Abstract: An organic light emitting diode (OLED) and a method for manufacturing the same are provided. In the OLED, patterned metal electrodes are positioned on one or more of upper and lower portions of a light emission layer to allow light generated from the light emission layer to emit to an area between the patterned metal electrodes.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 23, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Lee Mi DO, Kun Sik Park, Ji Man Park, Dong Pyo Kim, Jin Yeong Kang, Kyu Ha Baek
  • Patent number: 7956351
    Abstract: An organic light emitting device includes a first electrode disposed on a first substrate and comprising an emission area and an non-emission area, a plurality of barrier ribs located on a portion of the non-emission area of the first electrode, each barrier rib having an overhang structure, auxiliary electrodes disposed on a portion of a lower part of the barrier ribs and electrically contacting the first electrode, an emission layer disposed on the emission area of the first electrode and a second electrode disposed on the emission layer.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: June 7, 2011
    Assignee: LG Display Co., Ltd.
    Inventor: Hee Dong Choi
  • Publication number: 20110128784
    Abstract: An electronic memory device is presented. The device comprises at least one basic unit (FIG. 2), which is configured as a memory cell for storing at least one bit of information. The basic unit comprises a vacuum cavity (FIG. 2, 2) for free charge carriers propagation therethrough, a region of charge carriers emission or entry into the vacuum cavity (FIG. 2, 10), an anode electrode (FIG. 2, 11) which are kept under controllable voltage conditions, and at least one floating gate electrode (FIG. 2, 12) accommodated in a path of said free charge carriers propagating through the vacuum cavity between the emission or entry region and the anode. The floating gate electrode serves for storing therein a charge indicative of the at least one bit of information.
    Type: Application
    Filed: August 17, 2006
    Publication date: June 2, 2011
    Applicant: Nova-Trans Group SA
    Inventors: Erez Halahmi, Gilad Diamant, Tamar Ravon, Nery Ben-Azar, Jeffrey Levy, Ron Naaman
  • Publication number: 20110127517
    Abstract: Disclosed is a compound containing a divalent group represented by formula (I).
    Type: Application
    Filed: July 29, 2009
    Publication date: June 2, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Tomoya Nakatani
  • Publication number: 20110121276
    Abstract: An organic electroluminescent device includes a substrate; a plurality of light-emitting elements, each including an organic light-emitting layer held between a pair of electrodes; a display region which overlaps the substrate in plan view and in which the light-emitting elements are disposed; a first connection line which is disposed around the display region and is connected to one of the pair of electrodes and on which a transparent conductive layer is disposed; and a gas barrier layer covering end and top surfaces of the first connection line and top surfaces of the light-emitting elements.
    Type: Application
    Filed: February 1, 2011
    Publication date: May 26, 2011
    Applicant: Seiko Epson Corporation
    Inventor: Kenji HAYASHI
  • Publication number: 20110121272
    Abstract: An organic light emitting device having increased outcoupling efficiency, a lighting apparatus including the organic light emitting device, and an organic light emitting display apparatus including the organic light emitting device. The organic light emitting device includes a substrate, a first electrode layer that is uniformly patterned on the substrate, a low refractive conductive layer disposed on the first electrode layer, and having a conductive material with a lower refractive index than a refractive index of an organic layer that is disposed on the low refractive conductive layer, and a second electrode layer formed on the organic layer.
    Type: Application
    Filed: November 23, 2010
    Publication date: May 26, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Sung-Hun Lee, Gwan-Hyoung Lee, Chang-Woong Chu, SeungHyup Yoo, Tae-Wook Koh, Jung-Min Choi
  • Patent number: 7947519
    Abstract: An organic light emitting diode (OLED) display. The OLED display includes: a lower electrode formed on a layer on an insulating substrate having a thin film transistor. The lower electrode is electrically connected to the thin film transistor. An auxiliary electrode is formed on the same layer as the lower electrode, and a pixel defining layer is formed on edges of the lower electrode, thereby defining an opening which exposes a portion of the lower electrode. An organic layer is formed on the portion of the lower electrode exposed by the opening, and an upper electrode is formed on an entire surface of the insulating substrate and electrically connected to the auxiliary electrode. An edge of the auxiliary electrode may have a taper angle of at least 90°.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: May 24, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Kwan-Hee Lee, Eun-Ah Kim, Chang-Su Seo, Moon-Hee Park
  • Publication number: 20110114936
    Abstract: It is an object of the present invention to provide a technique to manufacture a highly reliable display device at a low cost with high yield. A display device according to the present invention includes a semiconductor layer including an impurity region of one conductivity type; a gate insulating layer, a gate electrode layer, and a wiring layer in contact with the impurity region of one conductivity type, which are provided over the semiconductor layer; a conductive layer which is formed over the gate insulating layer and in contact with the wiring layer; a first electrode layer in contact with the conductive layer; an electroluminescent layer provided over the first electrode layer; and a second electrode layer, where the wiring layer is electrically connected to the first electrode layer with the conductive layer interposed therebetween.
    Type: Application
    Filed: January 20, 2011
    Publication date: May 19, 2011
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Kengo AKIMOTO, Hisashi OHTANI, Misako HIROSUE
  • Patent number: 7943244
    Abstract: A display device comprises an anode, a cathode, and a luminescent region disposed between the anode and the cathode, wherein the anode comprises a metal-organic mixed layer operatively combined with an electron-accepting material. An anode may comprise a mixture of a metal-organic mixed layer and an electron-accepting material within a single layer of the anode. Alternatively, the anode may have a multilayer configuration comprising a metal-organic mixed layer and a buffer layer adjacent the metal-organic mixed layer, wherein the buffer layer comprises an electron-accepting material and optionally a hole transport material.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: May 17, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Hany Aziz, Nemanja Stefanovic, Jennifer A. Coggan, Anthony J. Paine, Zoran D. Popovic
  • Patent number: 7943408
    Abstract: The present invention is related to a surface-mounting ceramic LED package and a method for its production comprising: layering a ceramic green sheet which has a hole and a second ceramic green sheet, inserting a mold with a groove to form a partition in the bottom of the ceramic green sheet substrate, and firing the ceramic green sheet substrate.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: May 17, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Naoto Nakajima, Shuichi Tsunoda, Akira Inaba