Multicolor Organic Light-emitting Device (oled) (epo) Patents (Class 257/E51.022)
  • Publication number: 20100265223
    Abstract: A display device capable of improving the view angle characteristics without deteriorating the outside light contrast and a display unit using it are provided. The display device includes a first electrode, an organic layer including a light emitting layer and a second electrode sequentially over a substrate, and having a resonator structure in which light generated in the light emitting layer is resonated between a first end and a second end. An end face of the first electrode on the light emitting layer side is the first end having a step shape. A distance adjustment layer that fills in the step shape and has a flat surface on the second electrode side is provided between the first electrode and the second electrode, and thereby the second end is planarized, and an optical distance between the first end and the second end is varied according to the step shape.
    Type: Application
    Filed: June 29, 2010
    Publication date: October 21, 2010
    Applicant: SONY CORPORATION
    Inventors: Reo Asaki, Hirofumi Fujioka, Yasunobu Hiromasu
  • Patent number: 7816692
    Abstract: An Organic Light Emitting Display (OLED) and its fabrication method has a pixel defining layer provided on a first electrode which is formed with a gas vent groove to allow gas to vent when the pixel defining layer is being formed, so that gas is not left in a pixel but vented when a donor film is laminated by a Laser-Induced Thermal Imaging (LITI) method, thereby decreasing edge open failures.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: October 19, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Tae-Min Kang, Seong-Taek Lee, Myung-Won Song, Mu-Hyun Kim, Byung-Doo Chin, Jae-Ho Lee
  • Patent number: 7812345
    Abstract: The present invention relates to an organic EL display panel having an organic light emitting layer having a uniform film thickness. The organic EL display panel of the present invention includes: a substrate; linear banks placed on the substrate and defining a linear region on the substrate; and at least two organic EL elements aligned in a row each linear region, and, each of the organic EL elements includes: an anode placed on the substrate; a hole injection layer formed with an metallic oxide and placed on the anode; an organic light emitting layer placed on the hole injection layer; and a cathode placed on the organic light emitting layer. The hole injection layer is concavely curved or convexly curved, the hole injection layer is partly placed under the banks; and the organic light emitting layer is formed by applying an organic light emitting material in the linear region.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: October 12, 2010
    Assignee: Panasonic Corporation
    Inventors: Hidehiro Yoshida, Kenji Okumoto, Keisei Yamamuro
  • Publication number: 20100252841
    Abstract: An organic light-emitting diode device, includes a plurality of first patterned electrodes that define a corresponding plurality of light-emitting areas, and one-or-more organic first light-emitting layer(s) formed over the first patterned electrodes. A plurality of second patterned electrodes are formed over the one-or-more first light-emitting layer(s) corresponding to the first patterned electrodes; and one or more organic second light-emitting layer(s) formed over the second patterned electrodes. A third electrode common to the plurality of light-emitting areas is formed over the one-or-more second light-emitting layer(s).
    Type: Application
    Filed: September 18, 2006
    Publication date: October 7, 2010
    Inventors: Ronald S. Cok, Michael E. Miller
  • Publication number: 20100244068
    Abstract: A method for applying a thin-film encapsulation layer assembly to an organic device, which comprises a substrate which is provided with an active stack and is then provided with the thin-film encapsulation layer assembly for screening the active stack substantially from oxygen and moisture, wherein the thin-film encapsulation layer assembly is formed by applying at least one organic and at least one inorganic layer applied with PECVD or reactive sputtering, onto the active stack, wherein after application of a first organic layer a metal layer is applied to the first organic layer before an inorganic layer is applied thereto utilizing PECVD or reactive sputtering, wherein the metal layer is applied utilizing a deposition technique that causes relatively little radiation, wherein the metal layer protects the organic layer against radiation upon a subsequent PECVD or reactive sputtering process step for applying an inorganic layer. The invention also relates to an organic device manufactured with such a method.
    Type: Application
    Filed: May 16, 2008
    Publication date: September 30, 2010
    Applicant: OTB Solar B.V.
    Inventors: Bas Jan Emile van Rens, Yvo Hendrik Croonen, Ruediger Lange
  • Publication number: 20100244007
    Abstract: The present invention provides a white organic electroluminescent element which can emits white light and is free from deviation of chromaticity. This organic electroluminescent element comprises a substrate and, provided on the substrate, at least an anode, a cathode, and a light emitting layer held between the anode and the cathode. This organic electroluminescent element is characterized in that the light emitting layer contains at least three types of light emitting materials different from each other in X max, and the absolute value of HOMO level of the light emitting material having the shortest wavelength is smaller than the absolute value of HOMO level of the other light emitting materials.
    Type: Application
    Filed: October 27, 2008
    Publication date: September 30, 2010
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Takeshi Ono, Kunimasa Hiyama, Shigeru Kojima
  • Publication number: 20100248403
    Abstract: In a manufacturing method of a light-emitting device, a separation layer is formed over a substrate; a semiconductor circuit element layer and first electrodes are formed over the separation layer; a partition wall overlapping with end portions of the first electrodes is formed; and organic material layers are formed over the first electrodes. Organic material layers emitting light of the same color are arranged adjacent to each other in a line and extend in a first direction. A second electrode is formed using a material having high adhesiveness to the partition wall over the organic material layers to be in contact with the partition wall. A stack structure including the semiconductor circuit element layer, the first electrodes, the partition wall, the organic material layers, and the second electrode is separated from the substrate using the separation layer in a second direction perpendicular to the first direction.
    Type: Application
    Filed: March 23, 2010
    Publication date: September 30, 2010
    Inventors: Kaoru Hatano, Takaaki Nagata, Takuya Tsurume
  • Publication number: 20100244005
    Abstract: Provided is an organic EL apparatus including: an organic EL panel including organic EL devices; a heat releasing member; and a pair of film sheets of which at least one is transparent, wherein the organic EL panel and the heat releasing member overlap and are interposed and encapsulated by the pair of film sheets in a state where a portion of the heat releasing member is exposed outside the pair of film sheets.
    Type: Application
    Filed: March 24, 2010
    Publication date: September 30, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Kozo Gyoda
  • Publication number: 20100244069
    Abstract: A device is provided. The device includes first, second and third subpixels. The first sub-pixel includes an emissive layer having a first emitting material but not a second emitting material. The second sub-pixel includes an emissive layer having the second emitting material but not the first emitting material. The third sub-pixel includes an emissive layer having both the first and second emitting materials. A method of fabricating the device is provided. For a three subpixel device, a first electrode layer is deposited, having a first sub-pixel and a second sub-pixel. Then, in a first patterned deposition process, a first emitting material is deposited on the first sub-pixel and the third sub-pixel, but not the second sub-pixel. Then, in a second patterned deposition process, a second emitting material is deposited on the second sub-pixel and the third sub-pixel, but not the first sub-pixel. Then, a second electrode layer is deposited.
    Type: Application
    Filed: December 16, 2009
    Publication date: September 30, 2010
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventor: Michael S. WEAVER
  • Publication number: 20100237335
    Abstract: In a multicolor display apparatus in which each of light emitting devices of three colors R, G and B has the same thickness from a reflection position of a reflection electrode to an organic emission layer, an organic emission layer of the R device and an organic emission layer of the B device each have electron transport property whereas an organic emission layer of the G device has hole transport property; and an optical distance (L) from the reflection position of the reflection electrode to an emission position of the organic emission layer in the light emitting devices of three colors satisfies 0.25×?R<L<0.75×?B, where ?R and ?B are peak wavelengths of emission spectra of the red light emitting device and the blue light emitting device.
    Type: Application
    Filed: November 19, 2008
    Publication date: September 23, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Itaru Takaya
  • Publication number: 20100224868
    Abstract: The present invention provides a TFT that has a channel length particularly longer than that of an existing one, specifically, several tens to several hundreds times longer than that of the existing one, and thereby allowing turning to an on-state at a gate voltage particularly higher than the existing one and driving, and allowing having a low channel conductance gd. According to the present invention, not only the simple dispersion of on-current but also the normalized dispersion thereof can be reduced, and other than the reduction of the dispersion between the individual TFTs, the dispersion of the OLEDs themselves and the dispersion due to the deterioration of the OLED can be reduced.
    Type: Application
    Filed: April 13, 2010
    Publication date: September 9, 2010
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Makoto Udagawa, Masahiko Hayakawa, Jun Koyama, Mitsuaki Osame, Aya Anzai
  • Publication number: 20100225252
    Abstract: A device that may be used as a multi-color pixel is provided. The device has a first organic light emitting device, a second organic light emitting device, a third organic light emitting device, and a fourth organic light emitting device. The device may be a pixel of a display having four sub-pixels. The first device may emit red light, the second device may emit green light, the third device may emit light blue light and the fourth device may emit deep blue light.
    Type: Application
    Filed: April 1, 2010
    Publication date: September 9, 2010
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Michael S. Weaver, Julie J. Brown, Peter Levermore, Woo-Young So, Michael Hack
  • Patent number: 7791096
    Abstract: A mount for a semiconductor device includes a carrier, at least two metal leads disposed on a bottom surface of the carrier, and a cavity extending through a thickness of the carrier to expose a portion of the top surfaces of the metal leads. A semiconductor light emitting device is positioned in the cavity and is electrically and physically connected to the metal leads. The carrier may be, for example, silicon, and the leads may be multilayer structures, for example a thin gold layer connected to a thick copper layer.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: September 7, 2010
    Assignees: Koninklijke Philips Electronics N.V., Philips Lumileds Lighting Company, LLC
    Inventors: M. George Craford, Michael R. Krames
  • Publication number: 20100219398
    Abstract: Provided is a bottom emission type organic EL panel capable of preventing or delaying loss of light emission from an end portion of the light emission area and reduction of the light emission area in an organic EL element. This organic electro luminescence panel includes an organic electro luminescence element having at least one organic layer between an anode and a cathode arranged on a substrate. This panel has a main light emission area emitting light with a high luminance and a non-light emission area or a low light emission area emitting light with a lower luminance than the main light emission area, arranged outside the end portion of the main light emission area. By limiting the main light emission area to a smaller size than the cathode forming area, the end portion of the cathode forming area is arranged outside the end portion of the main light emission area.
    Type: Application
    Filed: December 8, 2006
    Publication date: September 2, 2010
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Keiichi Furukawa, Nobuhiko Takashima
  • Publication number: 20100219397
    Abstract: Disclosed is a transition metal complex compound having a specific structure including a crosslinked stricture. Further, disclosed is an organic electroluminescence device including an organic thin film formed of one or more layers including at least a light-emitting layer, the organic thin film layer being interposed between a pair of electrodes. In this organic electroluminescence device, at least one layer of the organic thin film contains the transition metal complex compound and has high luminous efficiency and emits blue light. In addition, disclosed is the transition metal complex compound enables to realize the organic electroluminescence device.
    Type: Application
    Filed: July 31, 2006
    Publication date: September 2, 2010
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Masami Watanabe, Masahide Matsuura, Hideaki Nagashima
  • Publication number: 20100219429
    Abstract: A top-emitting OLED device, comprising: one or more OLEDs formed on a substrate; a light-scattering layer formed over the one or more OLEDs; a transparent cover; one or more color filters formed on the transparent cover; a color-conversion material layer formed over the color filters, or formed over or integral with the light-scattering layer; wherein the substrate is aligned and affixed to the transparent cover so that the locations of the color filters and color conversion material correspond to the location of the OLEDs, and the color-conversion material layer, color filters, and the light-scattering layer are between the cover and substrate, and a low-index gap is formed between the light-scattering layer and the color filters, with no light-scattering layer being positioned between the color conversion material layer and the low-index gap, wherein the color-conversion material layer is formed integrally with the light-scattering layer.
    Type: Application
    Filed: May 13, 2010
    Publication date: September 2, 2010
    Inventors: Ronald S. Cok, Andrew D. Arnold, Mitchell S. Burberry
  • Publication number: 20100219406
    Abstract: The present invention relates to the use of (hetero)aryl-substituted acridine derivatives as matrix materials in a light-emitting layer of organic light-emitting diodes (OLEDs) and/or in a blocking layer for electrons in organic light-emitting diodes. The present invention further relates to a light-emitting layer which comprises at least one emitter material and at least one matrix material, wherein the matrix material used is at least one (hetero)aryl-substituted acridine derivative, and to an organic light-emitting diode which comprises at least one inventive light-emitting layer, to an organic light-emitting diode which comprises at least one acridine derivative of the formula (I) in a blocking layer for electrons, and to a device selected from stationary and mobile visual display units and illumination units which comprise at least one inventive organic light-emitting diode.
    Type: Application
    Filed: September 26, 2008
    Publication date: September 2, 2010
    Applicant: BASF SE
    Inventors: Klaus Kahle, Oliver Molt, Nicolle Langer, Christian Lennartz, Christian Schildknecht, Simon Nord, Evelyn Fuchs, Jens Rudolph
  • Publication number: 20100219427
    Abstract: Provided is a light-emitting apparatus in which light extraction efficiency of a light-emitting device is improved and viewing angle dependency of an emission color is reduced. The light-emitting apparatus includes a cavity structure and a periodic structure. When guided-wave light is diffracted by the periodic structure in a direction that forms an angle which is larger than 90° and smaller than 180° relative to a guided-wave direction of an optical waveguide in the cavity structure, a wavelength of the diffracted light becomes longer as the diffraction angle increases.
    Type: Application
    Filed: November 13, 2008
    Publication date: September 2, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Koichi Fukuda
  • Publication number: 20100221855
    Abstract: In a top emission structure, there has been a problem in that a wiring, a TFT, or the like is provided in regions other than a light emitting region so that light reflected by the wiring reaches eyes of an observer. The present invention prevents light that is reflected by a wire from reaching eyes of an observer by providing a light-absorbing multilayer film (61) in regions other than a light emitting region. Specifically, the light-absorbing multilayer film (61) is used as an upper layer of a partition wall (also called as a bank or a barrier) that covers ends of a first electrode (66b) whereas an organic resin film (67) is used as a lower layer of the partition wall. The partition wall in the present invention is characterized by being a laminate of three or more layers formed of different materials.
    Type: Application
    Filed: February 11, 2010
    Publication date: September 2, 2010
    Inventors: Shunpei Yamazaki, Takeshi Noda
  • Publication number: 20100213456
    Abstract: An organic electroluminescence display device is disclosed wherein plural organic electroluminescence elements each having an anode, a cathode and an organic layer sandwiched in between the anode and the cathode, the plural organic electroluminescence elements including organic electroluminescence elements developing different colors in a row direction, and at least one of the organic layers having an outer edge of a conic section at an end portion in a column direction thereof, the outer edge of the conic section becoming narrower gradually in its width in a row direction of vapor deposition thereof toward an extreme end at an end portion in a column direction thereof. The organic electroluminescence display device can improve the vapor deposition accuracy and the degree of design freedom.
    Type: Application
    Filed: April 29, 2010
    Publication date: August 26, 2010
    Inventors: Noriharu Matsudate, Takeshi Ookawara, Kenta Kajiyama
  • Publication number: 20100213445
    Abstract: A phosphorescent polymer compound has high luminance efficiency and long life. An organic electroluminescent device includes the compound. The phosphorescent polymer compound includes structural units that are derived from a compound represented by Formula (1): wherein R1 to R8 are each independently a hydrogen atom, a halogen atom, a cyano group, an alkyl group, an aryl group, a heteroaryl group, an amino group optionally substituted with an alkyl group, an alkoxy group, a silyl group optionally substituted with an alkyl group, or a group having a radically polymerizable functional group, and one of R1 to R8 is a group having a radically polymerizable functional group; and L is a ligand with a specific five-membered ring structure, and the two ligands L may be the same or different from each other.
    Type: Application
    Filed: June 24, 2008
    Publication date: August 26, 2010
    Applicant: SHOWA DENKO K.K.
    Inventor: Yoshiaki Takahashi
  • Publication number: 20100207113
    Abstract: There is provided a thin film active element including a light-permeable substrate, a light-shielding source/drain electrode formed on the substrate, a light-permeable source/drain electrode formed on a plane surface to which the light-shielding source/drain electrode belongs, and disposed to have a gap interposed between the light-shielding source/drain electrode and the light-permeable source/drain electrode, a channel layer formed in the gap between the light-shielding source/drain electrode and the light-permeable source/drain electrode, and a gate electrode applying an electric field to the channel layer formed in the gap.
    Type: Application
    Filed: October 9, 2008
    Publication date: August 19, 2010
    Inventor: Kenji Kasahara
  • Publication number: 20100207107
    Abstract: An organic light emitting display device includes: a first substrate; a plurality of organic light emitting diodes on the first substrate; a plurality of spacers spaced apart from each other on sides of light emitting regions corresponding to the plurality of organic light emitting diodes; and a second substrate facing the first substrate and spaced apart from the first substrate at an interval by the plurality of spacers.
    Type: Application
    Filed: December 15, 2009
    Publication date: August 19, 2010
    Inventor: Tae-Gon Kim
  • Publication number: 20100207115
    Abstract: An organic electro-luminescence diode comprises two electrodes and an organic electro-luminescence structure. The organic electro-luminescence structure is formed between the two electrodes, and includes a red light-generating unit, a green light-generating unit, a blue light-generating unit and a light-compensating unit stacked with each other. The light-compensating unit is selected from the group consisting of a white light-compensating unit, a red light-compensating unit, a green light-compensating unit, a blue light-compensating unit and a structure stacking together one light-compensating unit upon the other.
    Type: Application
    Filed: April 29, 2010
    Publication date: August 19, 2010
    Inventor: Chung-Yeh Iou
  • Patent number: 7777235
    Abstract: A light emitting diode with improved light collimation comprises a substrate-supported LED die disposed within a transparent dome. A portion of the dome laterally circumscribe the die comprises light reflecting material to reflect emitted light back to the die. A portion of the dome centrally overlying the die is substantially free of light reflecting material to permit exit of light within a desired radiation pattern. The LED die may be packaged for high temperature operation by disposing them on a ceramic-coated metal base which can be coupled to a heat sink. The packaged LED can be made by the low temperature co-fired ceramic-on-metal technique (LTCC-M).
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: August 17, 2010
    Assignee: Lighting Science Group Corporation
    Inventors: Joseph Mazzochette, Greg Blonder
  • Publication number: 20100200848
    Abstract: An organic electroluminescent device including in sequence an anode, a first emitting layer (5), a carrier barrier layer (6), a second emitting layer (7) and a cathode stacked; wherein the ionization potential of the carrier barrier layer (6) is more than the ionization potential of the first emitting layer (5) by 0.1 eV or more and the affinity level of the carrier barrier layer (6) is less than the affinity levels of the first emitting layer (5) and the second emitting layer (7) by 0.1 eV or more.
    Type: Application
    Filed: April 27, 2010
    Publication date: August 12, 2010
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Takashi ARAKANE, Hitoshi Kuma, Hisayuki Kawamura, Toshihiro Iwakuma, Chishio Hosokawa
  • Publication number: 20100203663
    Abstract: A method of manufacturing an organic thin film transistor, the method comprising: depositing a source and drain electrode; forming a thin self-assembled layer of material on the source and drain electrodes, the thin self-assembled layer of material comprising a dopant moiety for chemically doping an organic semi-conductive material by accepting or donating charge and a separate attachment moiety bonded to the dopant moiety and selectively bonded to the source and drain electrodes; and depositing a solution comprising a solvent and an organic semi-conductive material in a channel region between the source and drain electrode.
    Type: Application
    Filed: June 13, 2008
    Publication date: August 12, 2010
    Applicants: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED, PANASONIC CORPORATION
    Inventors: Sadayoshi Hotta, Jonathan Halls, Gregory Whiting
  • Publication number: 20100203656
    Abstract: In a method for the manufacture of an active matrix OLED display, at least two thin-film transistors and one storage capacitor are provided to drive each pixel, with a reduced number of photolithographic patterning steps.
    Type: Application
    Filed: February 3, 2010
    Publication date: August 12, 2010
    Inventors: Norbert Fruehauf, Thomas Buergstein, Patrick Schalberger
  • Publication number: 20100200846
    Abstract: An organic light emitting diode display includes a substrate having organic light emitting diodes thereon. A thin film encapsulation layer is formed on the substrate such that the thin film encapsulation layer covers the organic light emitting diodes. A nonorganic layer is formed under the thin film encapsulation layer along the edge of the thin film encapsulation layer.
    Type: Application
    Filed: February 9, 2010
    Publication date: August 12, 2010
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jin-Ho Kwack, Dong-Won Han, Kyu-Sung Lee
  • Publication number: 20100200845
    Abstract: Embodiments provide an organic light emitting diode display. The display includes a substrate, a pixel electrode formed on the substrate, and an organic emissive layer formed on the pixel electrode. A common electrode is formed on the organic emissive layer. In addition, a crystallized light scattering layer is formed on the common electrode. The crystallized light scattering layer may be a crystallized organic or crystallized inorganic layer having a rough surface in order to effectively scatter light and prevent phenomenon, such as Newton's Rings from occurring in the display.
    Type: Application
    Filed: February 8, 2010
    Publication date: August 12, 2010
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Hee-Seong JEONG, Hee-Chul JEON, Woo-Suk JUNG, Chul-Woo JEONG, Noh-Min KWAK, Eun-Ah KIM, Soon-Ryong PARK, Joo-Hwa LEE
  • Publication number: 20100201662
    Abstract: The purpose of the invention is to improve reliability of a light emitting apparatus comprising TFTs and organic light emitting elements.
    Type: Application
    Filed: April 19, 2010
    Publication date: August 12, 2010
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei YAMAZAKI, Satoshi MURAKAMI, Masayuki SAKAKURA, Toru TAKAYAMA
  • Publication number: 20100200843
    Abstract: A thin film transistor with which oxygen is easily supplied to an oxide semiconductor layer and favorable transistor characteristics are able to be restored and a display unit including the same are provided. The thin film transistor includes sequentially over a substrate a gate electrode, a gate insulting film, an oxide semiconductor layer including a channel region, and a channel protective layer covering the channel region A source electrode and a drain electrode are formed on the oxide semiconductor layer located on both sides of the channel protective layer, and at least one of the source electrode and the drain electrode has an aperture to expose the oxide semiconductor layer.
    Type: Application
    Filed: January 29, 2010
    Publication date: August 12, 2010
    Applicant: SONY CORPORATION
    Inventors: Toshiaki Arai, Narihiro Morosawa, Kazuhiko Tokunaga, Hiroshi Sagawa, Kiwamu Miura
  • Publication number: 20100193772
    Abstract: Provided is a thin film transistor capable of improving reliability in the thin film transistor including an oxide semiconductor layer. A thin film transistor including: a gate electrode; a gate insulating film formed on the gate electrode; an oxide semiconductor layer forming a channel region corresponding to the gate electrode on the gate insulating film; a channel protective film formed at least in a region corresponding to the channel region on the oxide semiconductor layer; and a source/drain electrode. A top face and a side face of the oxide semiconductor layer are covered with the source/drain electrode and the channel protective layer on the gate insulating film.
    Type: Application
    Filed: December 29, 2009
    Publication date: August 5, 2010
    Applicant: Sony Corporation
    Inventors: Narihiro Morosawa, Takashige Fujimori
  • Publication number: 20100193778
    Abstract: An organic light emitting diode display with first and second substrates, and a method of manufacturing the organic light emitting diode display. The first substrate has a plurality of first organic light emitting diodes each having a first emissive area and a first non-emissive area, and a first driving circuit unit for driving the first organic light emitting diodes. The second substrate has a plurality of second organic light emitting diodes each having a second emissive area and a second non-emissive area, and a second driving circuit unit for driving the second organic light emitting diodes. The first emissive areas of the first organic light emitting diodes face the second non-emissive areas of the second organic light emitting diodes, respectively, and the second emissive areas of the second organic light emitting diodes face the first nonemissive area of the first organic light emitting diodes, respectively.
    Type: Application
    Filed: February 1, 2010
    Publication date: August 5, 2010
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Chi-Wook An, Ji-Yeon Baek
  • Publication number: 20100194717
    Abstract: The present invention provides an organic electroluminescence display device including an organic electroluminescence element which includes a transparent electrode, a counter electrode, and an organic compound layer provided between the transparent electrode and the counter electrode, the organic compound layer including a light emitting layer, and a fine particle-containing layer positioned in the optical path of light emitted from the light emitting layer and adjacent to the transparent electrode, wherein the fine particle-containing layer contain an organic resin material having a refractive index equal to or lower than the refractive index of the transparent electrode, and fine particles having a refractive index higher than the refractive index of the organic resin material and a weight average particle diameter of 0.5 ?m to 5 ?m, and the fine particle-containing layer has a thickness of 2 ?m to 10 ?m.
    Type: Application
    Filed: January 13, 2010
    Publication date: August 5, 2010
    Applicant: FUJIFILM CORPORATION
    Inventors: Hiroyuki MORI, Hidemasa HOSODA, Masanori HIKITA
  • Publication number: 20100193779
    Abstract: A bottom gate thin film transistor (TFT), a flat panel display having the same, and a method of fabricating the same are disclosed. The TFT comprises a gate electrode disposed on a substrate, and a gate insulating layer disposed on the gate electrode. A semiconductor layer is disposed on the gate insulating layer and crossing over the gate electrode, and is crystallized by an MILC technique. An inter-insulating layer is disposed on the semiconductor layer and comprises source and drain contact holes which expose portions of the semiconductor layer. The source and drain contact holes are separated from at least one edge of the semiconductor layer crossing over the gate electrode. The semiconductor layer comprises conductive MIC regions corresponding to the exposed portions of the semiconductor layer in the source and drain contact holes.
    Type: Application
    Filed: April 13, 2010
    Publication date: August 5, 2010
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventor: Keun-Soo LEE
  • Patent number: 7763900
    Abstract: Disclosed are a light emitting device having a plurality of light emitting cells connected in series and a method of fabricating the same. The light emitting device includes a buffer layer formed on a substrate. A plurality of rod-shaped light emitting cells are located on the buffer layer to be spaced apart from one another. Each of the light emitting cells has an n-layer, an active layer and a p-layer. Meanwhile, wires connect the spaced light emitting cells in series or parallel. Accordingly, arrays of the light emitting cells connected in series are connected to be driven by currents flowing in opposite directions. Thus, there is provided a light emitting device that can be directly driven by an AC power source.
    Type: Grant
    Filed: July 4, 2005
    Date of Patent: July 27, 2010
    Assignee: Seoul Opto Device Co., Ltd.
    Inventor: Chung Hoon Lee
  • Publication number: 20100181563
    Abstract: A thin film transistor using an oxide semiconductor as an active layer, and its method of manufacture. The thin film transistor includes: a substrate; an active layer formed of an oxide semiconductor; a gate insulating layer formed of a dielectric on the active layer, the dielectric having an etching selectivity of 20 to 100:1 with respect to the oxide semiconductor; a gate electrode formed on the gate insulating layer; an insulating layer formed on the substrate including the gate electrode and having contact holes to expose the active layer; and source and drain electrodes connected to the active layer through the contact holes. Since the source and drain electrodes are not overlapped with the gate electrode, parasitic capacitance between the source and drain electrodes and the gate electrode is minimized. Since the gate insulating layer is formed of dielectric having a high etching selectivity with respect to oxide semiconductor, the active layer is not deteriorated.
    Type: Application
    Filed: January 20, 2010
    Publication date: July 22, 2010
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Min-Kyu KIM, Jin-Seong PARK, Tae-Kyung AHN, Hyun-Joong CHUNG
  • Publication number: 20100181553
    Abstract: Disclosed is an organic electroluminescent device (organic EL device) that utilizes phosphorescence and is improved in luminous efficiency and fully secured of driving stability. The organic EL device comprises an anode, an organic layer containing a hole-transporting layer, a light-emitting layer, and an electron-transporting layer, and a cathode piled one upon another on a substrate while the hole-transporting layer is disposed between the light-emitting layer and the anode and the electron-transporting layer is disposed between the light-emitting layer and the cathode. The light-emitting layer comprises an aluminum heterocomplex or dimeric complex of deuterated substituted or unsubstituted 2-methyl-8-hydroxyquinoline (Me8HQ-D) in which the hydrogen atoms in the methyl group of substituted or unsubstituted 2-methyl-8-hydroxyquinoline (Me8HQ) are deuterated as a host material and an organic metal complex containing at least one metal selected from groups 7 to 11 of the periodic table as a guest material.
    Type: Application
    Filed: August 28, 2007
    Publication date: July 22, 2010
    Inventors: Hiroshi Miyazaki, Atsuhiko Katayama, Shinji Matsuo, Katsuhide Noguchi
  • Publication number: 20100181559
    Abstract: Disclosed is an organic EL display panel which includes: a substrate; a linear first bank which is disposed over the substrate and defines a linear region; a second bank which defines two or more pixel regions arranged in the linear region; a pixel electrode disposed in the pixel region; a linear organic layer which is formed by coating method in the linear region over the pixel electrode and second bank; and a counter electrode over the organic layer, wherein the first bank is larger in height than the second bank, the first and second banks are made of resin, anisole contact angle at the top of the first bank is 30-60°, and anisole contact angle at the top of the second bank is 5-30°.
    Type: Application
    Filed: June 2, 2009
    Publication date: July 22, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Shuhei Nakatani, Hidehiro Yoshida, Kiyohiko Takagi
  • Patent number: 7759675
    Abstract: The present invention relates to a light emitting device, particularly to an organic electroluminescent device, that can prevent corrosion of data lines and scan lines and improve the adhesive strength of a sealant. The organic electroluminescent device includes a substrate, a plurality of anode electrode layers disposed in a first direction on the substrate, a plurality of cathode electrode layers disposed in a second direction different from the first direction on the substrate, luminescent areas formed by the anode electrode layers and the cathode electrode layers, a plurality of data lines electrically communicated with the anode electrode layers, and a plurality of scan lines electrically communicated with the cathode electrode layers. At least one of the data lines and the scan lines includes a transparent electrode layer, and the sub-electrode layer completely encloses the transparent electrode layer.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: July 20, 2010
    Assignee: LG Display Co., Ltd.
    Inventor: Chun Tak Lee
  • Patent number: 7759686
    Abstract: A light emitting device is provided, which uses alternating current drive as a method of driving the light emitting device, and in which light emission is always obtained when voltages having different polarities are alternately applied, and a method of manufacturing the light emitting device is also provided. A first light emitting element made from an anode, an organic compound layer, and a cathode, and a second electrode made from an anode, an organic compound layer, and a cathode are formed. The light emitting elements are formed sandwiching the same organic compound layer. The anode of the first light emitting element and the anode of the second light emitting element, and the cathode of the first light emitting element and the cathode of the second light emitting element, are formed on opposite sides of the organic compound layer, respectively, thus sandwiching the organic compound layer.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: July 20, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd
    Inventors: Shunpei Yamazaki, Satoshi Seo
  • Publication number: 20100176391
    Abstract: A dense cathode electrode layer having a step coverage is to be formed on an electron injection layer. The electron injection layer in which fine particles of an electron injection material is dispersed in an organic thin film having an electron transport property is formed by vapor co-depositing the electron transport material and the electron injection material; and a cathode electrode layer made of an alloy layer of MgAg is formed by a sputtering method. Since lower portions of the fine particles of the electron injection material dispersed in the surface of the organic thin film are buried in the organic thin film, the electron injection particles are not peeled off even if sputtering particles collide with the electron injection particles, and the upper portions are in contact with the cathode electrode layer formed by sputtering particles.
    Type: Application
    Filed: March 25, 2010
    Publication date: July 15, 2010
    Applicant: ULVAC, INC.
    Inventor: Toshio NEGISHI
  • Publication number: 20100176378
    Abstract: The present invention relates to a method for producing an organic light emitting device, comprising a step of sequentially forming on a substrate a first electrode formed of a metal, one or more organic material layers including a light emitting layer, and a second electrode, which comprises a step of forming a layer on the first electrode using a metal having the higher oxidation rate than the first electrode before forming the organic material layer, and to an organic light emitting device produced by the same.
    Type: Application
    Filed: February 2, 2007
    Publication date: July 15, 2010
    Inventors: Jung-Hyoung Lee, Jung-Bum Kim, Yun-Hye Hahm
  • Publication number: 20100176388
    Abstract: A thin film transistor which has a compound semiconductor including oxygen as an activation layer, a method of manufacturing the thin film transistor, and a flat panel display device having the thin film transistor, of which the thin film transistor comprises: a gate electrode formed on a substrate; an activation layer formed on the gate electrode, insulated from the gate electrode by a gate insulating film, and formed of a compound semiconductor including oxygen; a passivation layer formed on the activation layer; and source and drain electrodes formed to contact the activation layer, wherein the passivation layer includes titanium oxide (TiOx) or titanium oxynitride (TiOxNy).
    Type: Application
    Filed: January 11, 2010
    Publication date: July 15, 2010
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jae-Heung Ha, Jong-Hyuk Lee, Young-Woo Song, Chaungi Choi
  • Publication number: 20100176389
    Abstract: Provided are an organic light emitting diode and a method of manufacturing the same. The organic light emitting diode adjusts an optical resonance thickness and prevents spectrum distortions without use of an auxiliary layer. The organic light emitting diode includes a first electrode that is optically reflective; a second electrode that is optically transmissible and faces the first electrode; an organic emission layer interposed between the first electrode and the second electrode, the organic emission layer including: a first emission layer including a mixed layer that contains a host material and a dopant material, and a second emission layer comprising only the host material; and a carrier injection transport layer interposed between the organic emission layer and the first electrode or between the organic emission layer and the second electrode.
    Type: Application
    Filed: January 13, 2010
    Publication date: July 15, 2010
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Min-Seung CHUN, Mi-Kyung Kim, Dong-Heon Kim, Jung-Ha Son, Jae-Hyun Kwak, Kyung-Hoon Choi, Mie-Hwan Park, Young-Ho Park, Young-Suck Choi, Tae-Shick Kim, Choon-Woo Im, Kwan-Hee Lee
  • Patent number: 7754520
    Abstract: A donor film has a soft polymer film and a transfer layer to be transferred which is formed on the soft polymer film. When fabricating a patterned organic electroluminescent device using the donor film for thin film transfer, the transfer layer is transferred even with a small amount of energy due to good adhesion between the transfer layer of the donor film and an acceptor film, and multiple layers, such as organic small molecular and polymer layers in addition to a metal layer, may be simultaneously transferred, while eliminating a need of a photothermal conversion layer.
    Type: Grant
    Filed: February 6, 2006
    Date of Patent: July 13, 2010
    Assignee: Samsung Mobil Display Co., Ltd.
    Inventor: Tae-Woo Lee
  • Publication number: 20100171105
    Abstract: An organic light emitting diode display includes a substrate, a thin film transistor on the substrate and including a gate electrode, a source electrode, and a drain electrode, a planarization layer on the thin film transistor and having a contact hole exposing a portion of one of the drain electrode or the source electrode, a pixel electrode on the planarization layer and coupled to the one of the drain electrode or the source electrode through the contact hole, a colored pixel defining layer on the planarization layer and including an opening exposing at least a portion of the pixel electrode, and a colored layer on the pixel electrode and the pixel defining layer and having a chromatic color different from a chromatic color of the pixel defining layer.
    Type: Application
    Filed: December 18, 2009
    Publication date: July 8, 2010
    Inventors: Eun-Ah Kim, Chul-Woo Jeong, Hee-Chul Jeon, Noh-Min Kwak, Woo-Suk Jung, Joo-Hwa Lee, Hee-Seong Jeong, Soon-Ryong Park
  • Publication number: 20100171112
    Abstract: The present invention provides a light-emitting element including an electron-transporting layer and a hole-transporting layer between a first electrode and a second electrode; and a first layer and a second layer between the electron-transporting layer and the hole-transporting layer, wherein the first layer includes a first organic compound and an organic compound having a hole-transporting property, the second layer includes a second organic compound and an organic compound having an electron-transporting property, the first layer is formed in contact with the first electrode side of the second layer, the first organic compound and the second organic compound are the same compound, and a voltage is applied to the first electrode and the second electrode, so that both of the first organic compound and the second organic compound emit light.
    Type: Application
    Filed: January 13, 2010
    Publication date: July 8, 2010
    Inventor: Nobuharu Ohsawa
  • Publication number: 20100171115
    Abstract: There is provided an organic electroluminescence display includes a lower electrode formed on a substrate, a device separation film formed on the lower electrode, an organic compound layer formed on the device separation film and including a light emission layer, and an upper electrode formed on the organic compound layer, wherein the device separation film is a polyimide film having an imidation ratio in a range of 65% or more to less than 90%. The display is expected to have longer operating life.
    Type: Application
    Filed: March 23, 2010
    Publication date: July 8, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Katsumi Nakagawa