Multicolor Organic Light-emitting Device (oled) (epo) Patents (Class 257/E51.022)
  • Publication number: 20110260141
    Abstract: There is provided an organic light-emitting diode luminaire. The luminaire includes a first electrode, a second electrode, and an electroluminescent layer therebetween. The electroluminescent layer includes: a first electroluminescent material having an emission color that is blue; and a second electroluminescent material having an emission color that is red-orange. The additive mixing of the emitted colors results in an overall emission of white light.
    Type: Application
    Filed: October 25, 2010
    Publication date: October 27, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Daniel David Lecloux, Norman Herron, Vsevolod Rostovtsev
  • Publication number: 20110260140
    Abstract: There is provided an organic light-emitting diode luminaire. The luminaire includes a first electrode, a second electrode, and an electroluminescent layer therebetween. The electroluminescent layer includes: a first electroluminescent material having an emission color that is blue-green; and a second electroluminescent material having an emission color that is red/red-orange. The additive mixing of the emitted colors results in an overall emission of white light.
    Type: Application
    Filed: October 25, 2010
    Publication date: October 27, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Daniel David Lecloux, Norman Herron, Vsevolod Rostovtsev
  • Publication number: 20110260142
    Abstract: There is provided an organic light-emitting diode luminaire. The luminaire includes a first electrode, a second electrode, and an electroluminescent layer therebetween. The electroluminescent layer includes: a first electroluminescent material having an emission color that is blue; and a second electroluminescent material having an emission color that is yellow. The additive mixing of the emitted colors results in an overall emission of white light.
    Type: Application
    Filed: October 25, 2010
    Publication date: October 27, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Daniel David Lecloux, Norman Herron, Vsevolod Rostovtsev
  • Patent number: 8039841
    Abstract: An organic light-emitting diode (“OLED”) display includes a first thin film transistor disposed on a substrate; a first insulating layer disposed on the first thin film transistor; a reflective electrode disposed on the first insulating layer; a common voltage line disposed on the first insulating layer and separated from the reflective electrode; a second insulating layer disposed on the reflective electrode and the common voltage line; a pixel electrode disposed on the second insulating layer and electrically connected to the first thin film transistor; an organic light-emitting member disposed on the pixel electrode; and a common electrode disposed on the organic light-emitting member, wherein the common voltage line is electrically connected to the common electrode.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: October 18, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Seung-Kyu Park
  • Publication number: 20110248244
    Abstract: An OLED apparatus is provided that includes a first electrode having a first polarity, and an electrode arrangement spaced apart from the first electrode and having a second polarity. The OLED apparatus also includes a first organic emissive layer interposed between the first electrode and the electrode arrangement, and a second electrode spaced apart from the electrode arrangement in a direction opposite the first electrode. The second electrode has the first polarity. The OLED apparatus further includes a second organic emissive layer interposed between the second electrode and the electrode arrangement, and a drive circuit for providing a first energizing signal to the first electrode and the electrode arrangement and a second energizing signal to the second electrode and the electrode arrangement. A method for manufacturing an OLED array is provided.
    Type: Application
    Filed: October 4, 2010
    Publication date: October 13, 2011
    Applicant: eMagin Corporation
    Inventors: Tariq Ali, Amulkumar P. Ghosh, Ilyas Khayrullin
  • Publication number: 20110248256
    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: June 22, 2011
    Publication date: October 13, 2011
    Inventors: Ronald S. Cok, Andrew D. Arnold, Mitchell S. Burberry
  • Publication number: 20110248249
    Abstract: The present invention relates to efficient organic light emitting devices (OLEDs). More specifically, the present invention relates to white-emitting OLEDs, or WOLEDs. The devices of the present invention employ three emissive sub-elements, typically emitting red, green and blue, to sufficiently cover the visible spectrum. The sub-elements are separated by charge generating layers.
    Type: Application
    Filed: October 28, 2009
    Publication date: October 13, 2011
    Inventors: Stephen Forrest, Xiangfei Qi, Michael Slootsky
  • Publication number: 20110248247
    Abstract: An organic electroluminescence display unit includes: a lower electrode for each device; a first hole injection/transport layer provided on the lower electrode for each device; a second organic light emitting layer of the first color provided on the first hole injection/transport layer for the second organic electroluminescence device; a second hole injection/transport layer provided on the entire surfaces of the second organic light emitting layer and the first hole injection/transport layer for the first organic electroluminescence device, and being made of a low molecular material; a blue first organic light emitting layer provided on the entire surface of the second hole injection/transport layer; and an electron injection/transport layer having at least one of electron injection characteristics and electron transport characteristics, and an upper electrode that are provided in sequence on the entire surface of first organic light emitting layer.
    Type: Application
    Filed: April 1, 2011
    Publication date: October 13, 2011
    Applicant: SONY CORPORATION
    Inventors: Toshiki Matsumoto, Tomoyuki Higo, Tadahiko Yoshinaga, Toshiaki Imai
  • Publication number: 20110240970
    Abstract: An organic light-emitting display apparatus is disclosed.
    Type: Application
    Filed: March 22, 2011
    Publication date: October 6, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Jin-Woo PARK, Myung-Jong JUNG, Tae- Min KANG, Sang-Woo PYO, Beom-Joon KIM, Hyo-Yeon KIM
  • Publication number: 20110240965
    Abstract: An organic light-emitting device including an emission layer including one or more emission layer of a red emission layer patterned in a red light-emitting region and a green emission layer patterned in a green light-emitting region and a blue emission layer formed as a common layer, wherein a blue emission is prevented in at least one region of the red light-emitting region and the green light-emitting region by adjusting the HOMO and LUMO levels of a host and a dopant of the green emission layer and/or the red emission layer.
    Type: Application
    Filed: December 28, 2010
    Publication date: October 6, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Ji-Hwan Yoon, Ja-Hyun Im
  • Patent number: 8030646
    Abstract: A light-emitting element is provided, including a first electrode and a second electrode, a first layer including first and second organic compounds, the first layer being formed between the first electrode and the second electrode wherein the first organic compound is capable of emitting a first light and the second organic compound has an electron transporting property, and a second layer including third and fourth organic compounds, the second layer being formed between the first layer and the second electrode wherein the third organic compound is capable of emitting a second light and has an electron trap property and the fourth organic compound has an electron transporting property.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: October 4, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tsunenori Suzuki, Satoshi Seo
  • Patent number: 8030125
    Abstract: The present invention is a method for manufacturing an organic thin-film transistor substrate including an organic thin-film transistor as a transistor element, and an object of the invention is to provide a manufacturing method capable of forming a bank in a smaller number of steps.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: October 4, 2011
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Kenji Kasahara
  • Publication number: 20110233576
    Abstract: According to one embodiment, an organic EL device includes a first organic EL element, a second organic EL element and a third organic EL element. The first organic EL element has a first electrode, a second electrode, and a first emitting layer. The second organic EL element has a third electrode, a fourth electrode, and a second emitting layer. At least a part of the first emitting layer extends on the second emitting layer. A third organic EL element has a fifth electrode, a sixth electrode, and a third emitting layer. At least a part of the first and the second emitting layers extends on the third emitting layer. A thickness of the first emitting layer between the first and the second electrodes is thicker than a thickness of the first emitting layer extending on the second and the third emitting layers.
    Type: Application
    Filed: January 31, 2011
    Publication date: September 29, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Satoshi OKUTANI, Norihisa Maeda, Masashi Takahashi, Takeshi Ikeda, Masuyuki Oota
  • Publication number: 20110233600
    Abstract: A white organic light-emitting diode (WOLED) includes a transparent electrode, a blue-complementary light-emitting layer, a translucent electrode, a blue light-emitting layer, and a non-transparent electrode. The blue-complementary light-emitting layer is disposed on the transparent electrode. The transparent electrode and the translucent electrode include a first voltage. The blue light-emitting layer is disposed on the translucent layer. The non-transparent electrode is disposed on the blue light-emitting layer. The translucent electrode and the non-transparent electrode include a second voltage.
    Type: Application
    Filed: September 15, 2010
    Publication date: September 29, 2011
    Inventors: Chun-Liang Lin, Chieh-Wei Chen, Chung-Chun Lee
  • Patent number: 8026513
    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: Grant
    Filed: December 8, 2006
    Date of Patent: September 27, 2011
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Keiichi Furukawa, Nobuhiko Takashima
  • Patent number: 8021763
    Abstract: The present invention relates to phosphorescent stacked OLEDs having an interlayer.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: September 20, 2011
    Assignee: The Trustees of Princeton University
    Inventors: Hiroshi Kanno, Stephen Forrest
  • Patent number: 8022421
    Abstract: A method for forming a pixel of an LED light source is provided. The method includes following steps: forming a first layer on a substrate; forming a second layer and a first light-emitting active layer on the first layer; exposing a portion of an upper surface of the first layer; forming a third layer on the substrate; forming a fourth layer and a second light-emitting active layer on the third layer; exposing a portion of an upper surface of the third layer; and forming a first electrode on the exposed upper surface of the first layer, a second electrode on a portion of an upper surface of the second layer, a third electrode on the exposed upper surface of the third layer, and a fourth electrode a portion of an upper surface of the fourth layer. The first light-emitting active layer and the second light-emitting active layer emit different colors of light.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: September 20, 2011
    Assignee: Industrial Technology Institute
    Inventors: Han-Tsung Hsueh, Hsi-Hsuan Yen, Wen-Yung Yeh, Mu-Tao Chu
  • Publication number: 20110221720
    Abstract: In one aspect, the present invention relates to a display. In one embodiment, the display has a substrate, and a plurality of pixels formed on the substrate and arranged in an array. Each pixel includes a driving transistor and a read-out transistor spatially formed on the substrate, where each transistor has a gate electrode, a drain electrode and a source electrode, an organic light emitting diode (OLED) having a cathode layer, a anode layer and an emissive layer formed between the cathode layer and the anode layer, and formed over the driving transistor and the read-out transistor such that the anode layer of the OLED is electrically connected to the source electrode of the driving transistor, and a photo sensor having a photosensitive layer formed between the anode layer of the OLED and the source electrode of the read-out transistor.
    Type: Application
    Filed: March 11, 2010
    Publication date: September 15, 2011
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Tzu-Yin Kuo, Tsung-Ting Tsai
  • Patent number: 8017955
    Abstract: A composite multi-color light emitting diode device includes a first light emitting diode unit and a second light emitting diode unit that is arranged on top of the first light emitting diode unit for emitting two different wavelengths of electromagnetic radiation. A third light emitting diode unit may be arranged on top of the second light emitting diode unit, thereby providing a stack of three light emitting diode units. Alternatively, the third light emitting diode unit may be arranged on the first light emitting diode unit, thereby providing two light emitting diode units side-by-side on top of the first light emitting diode unit.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: September 13, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Lingli Wang, Koen Van Os, Johannes Petrus Maria Ansems
  • Patent number: 8017968
    Abstract: A light-emitting diode chip package body with an excellent heat dissipation performance and a low manufacturing cost, and a packaging method of the same are disclosed. A LED chip package body is provided, the LED chip package body comprising: a LED chip having an electrode-side surface and at least two electrodes mounted on said electrode-side surface; an electrode-side insulating layer formed on said electrode-side surface of said LED chip and formed with a plurality of through-holes registered with corresponding said electrodes; a highly heat-dissipating layer formed in each of said through-holes of said insulating layer on said electrode-side surface; and a highly heat-conducting metal layer formed on said highly heat-dissipating layer in each of said through-holes.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: September 13, 2011
    Inventor: Yu-Nung Shen
  • Patent number: 8017254
    Abstract: An organic electroluminescence device of multi-photon emission mode which includes plural light emission layers and at least one charge generation layer between a pair of electrodes, arranged in a film thickness direction thereof, wherein the charge generation layer includes at least one p-doped layer and at least one n-doped layer, and further includes an alkali metal layer and a layer containing a hole transport material between the p-doped layer and the n-doped layer. An organic electroluminescence device of multi-photon emission mode exhibiting little unevenness in luminance even in a large-area format electroluminescence device is provided.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: September 13, 2011
    Assignee: Fujifilm Corporation
    Inventor: Yuichiro Itai
  • Publication number: 20110215305
    Abstract: An organic light emitting display apparatus includes a substrate, a light conversion layer on the substrate, the light conversion layer including an oxide semiconductor, a passivation layer covering the light conversion layer, a first electrode on the passivation layer, an intermediate layer on the first electrode, the intermediate layer including an organic emission layer, and a second electrode on the intermediate layer.
    Type: Application
    Filed: October 28, 2010
    Publication date: September 8, 2011
    Inventors: Mu-Gyeom Kim, Hye-Hyang Park, Hyun-Sun Park
  • Publication number: 20110215302
    Abstract: An organic light emitting diode display includes a substrate main body; an organic light emitting element on the substrate main body; an encapsulation substrate covering the organic light emitting element and coupled to the substrate main body; a translucent insulating layer filter formed on the encapsulation substrate; and a microcavity between the translucent insulating layer filter and the encapsulation substrate.
    Type: Application
    Filed: July 14, 2010
    Publication date: September 8, 2011
    Inventors: Zail Lhee, Chi-Wook An, Hee-Seong Jeong
  • Publication number: 20110215309
    Abstract: A device is provided. The device includes an anode, a cathode and a double emissive layer disposed between the anode and the cathode. The double emissive layer includes a first organic emissive layer and a second organic emissive layer. The first organic emissive layer includes a first phosphorescent material having a concentration of 15-35 wt % in the first organic emissive layer, and a peak emissive wavelength in the visible spectrum at a wavelength between 400 nm and 500 nm; and a first host material having a triplet energy at least 0.2 eV and not more than 1.0 eV greater than the triplet energy of the first phosphorescent material. The second organic emissive layer includes a second phosphorescent material having a concentration of 15-35 wt % in the second organic emissive layer, and a peak emissive wavelength in the visible spectrum at a wavelength between 500 nm and 600 nm, and a third phosphorescent material having a concentration of 0.
    Type: Application
    Filed: September 4, 2009
    Publication date: September 8, 2011
    Applicant: Universal Display Corporation
    Inventors: Brian D'Andrade, James Esler, Vadim Adamovich
  • Publication number: 20110204338
    Abstract: There is provided an organic light-emitting diode luminaire. The luminaire includes a patterned first electrode, a second electrode, and a light-emitting layer therebetween. The light-emitting layer includes a first plurality of pixels having an emission color that is blue; a second plurality of pixels having an emission color that is green, the second plurality of pixels being laterally spaced from the first plurality of pixels; and a third plurality of pixels having an emission color that is orange, the third plurality of pixels being laterally spaced from the first and second pluralities of pixels. The additive mixing of all the emitted colors results in an overall emission of white light.
    Type: Application
    Filed: August 23, 2010
    Publication date: August 25, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Kerwin D. Dobbs, Norman Herron, Vsevolod Rostovtsev
  • Publication number: 20110204339
    Abstract: There is provided an organic light-emitting diode luminaire. The luminaire includes a patterned first electrode, a second electrode, and a light-emitting layer therebetween. The light-emitting layer includes a first plurality of pixels having an emission color that is blue; a second plurality of pixels having an emission color that is green, the second plurality of pixels being laterally spaced from the first plurality of pixels; and a third plurality of pixels having an emission color that is red-orange, the third plurality of pixels being laterally spaced from the first and second pluralities of pixels. The additive mixing of all the emitted colors results in an overall emission of white light.
    Type: Application
    Filed: August 23, 2010
    Publication date: August 25, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Kerwin D. Dobbs, Norman Herron, Vsevolod Rostovtsev
  • Publication number: 20110204340
    Abstract: There is provided an organic light-emitting diode luminaire. The luminaire includes a patterned first electrode, a second electrode, and a light-emitting layer therebetween. The light-emitting layer includes a first plurality of pixels having an emission color that is blue; a second plurality of pixels having an emission color that is green, the second plurality of pixels being laterally spaced from the first plurality of pixels; and a third plurality of pixels having an emission color that is red, the third plurality of pixels being laterally spaced from the first and second pluralities of pixels. The additive mixing of all the emitted colors results in an overall emission of white light.
    Type: Application
    Filed: August 23, 2010
    Publication date: August 25, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Kerwin D. Dobbs, Norman Herron, Vsevolod Rostovtsev
  • Patent number: 8003980
    Abstract: The present invention is drawn to a layered organic device, and a method of forming the same. The method includes steps of applying a first solvent-containing organic layer to a substrate and removing solvent from the first solvent-containing organic layer to form a first solidified organic layer. Additional steps include applying a second solvent-containing organic layer to the first solidified organic layer and removing solvent from the second solvent-containing organic layer to form a second solidified organic layer. The first solidified organic layer can be crosslinked, which suppresses negative impact to components in the first solidified organic layer when the solvent of the second solvent-containing organic layer is deposited on the first solidified organic layer.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: August 23, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xia Sheng, Zhang-Lin Zhou, Krzysztof Nauka, Chung Ching Yang
  • Publication number: 20110198629
    Abstract: An organic light emitting display apparatus has a hybrid structure in which resonance red, green and blue pixels and a non-resonance white pixel are combined. An optical path control layer and a white color filter which selectively absorbs light having a specific wavelength are included in the white pixel. Thus, the organic light emitting display apparatus has a large viewing angle, low power consumption, and long lifetime.
    Type: Application
    Filed: February 8, 2011
    Publication date: August 18, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Sung-Hun Lee, Gun-Shik Kim
  • Publication number: 20110198576
    Abstract: An amino compound for an organic light-emitting device of general formula [1]: wherein X1 is bonded to the pair of fluorenyl groups at meta-positions to each other and is substituted or unsubstituted aromatic ring, fused polycyclic ring, or heterocyclic ring; Y1 and Y2 are each substituted or unsubstituted alkyl, aryl, or heterocyclic and are the same or different; Z1 to Z4 are each hydrogen, halogen, or substituted or unsubstituted alkyl, aralkyl, alkenyl, alkynyl, alkoxy, aryl, or heterocyclic and are the same or different; R1 to R4 are each hydrogen, halogen, or substituted or unsubstituted alkyl, aryl, or heterocyclic and are the same or different; a and d are each 1 to 4; and b and c are each 1 to 3.
    Type: Application
    Filed: April 27, 2011
    Publication date: August 18, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shigemoto Abe, Akihiro Senoo, Naoki Yamada, Chika Negishi
  • Patent number: 7999283
    Abstract: A light emitting device having an encapsulant with scattering features to tailor the spatial emission pattern and color temperature uniformity of the output profile. The encapsulant is formed with materials having light scattering properties. The concentration of these light scatterers is varied spatially within the encapsulant and/or on the surface of the encapsulant. The regions having a high density of scatterers are arranged in the encapsulant to interact with light entering the encapsulant over a desired range of source emission angles. By increasing the probability that light from a particular range of emission angles will experience at least one scattering event, both the intensity and color temperature profiles of the output light beam can be tuned.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: August 16, 2011
    Assignee: Cree, Inc.
    Inventors: Arpan Chakraborty, Bernd Keller
  • Patent number: 7999270
    Abstract: The present invention discloses a III-nitride compound semiconductor light emitting device having an n-type nitride compound semiconductor layer, an active layer grown on the n-type nitride compound semiconductor layer, for generating light by recombination of electron and hole, and a p-type nitride compound semiconductor layer grown on the active layer. The III-nitride compound semiconductor light emitting device includes a plurality of semiconductor layers including a nitride compound semiconductor layer with a pinhole structure grown on the p-type nitride compound semiconductor layer.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: August 16, 2011
    Assignee: Epivalley Co., Ltd.
    Inventors: Eun Hyun Park, Tae-Kyung Yoo
  • Publication number: 20110186878
    Abstract: A light-emitting device includes: an organic layer which is interposed between a first electrode and a second electrode and in which a first light-emitting layer and a second light-emitting layer emitting light of single colors or two or more different colors in a visible wavelength region are sequentially included at mutually separated positions in that order in a direction from the first electrode to the second electrode; a first reflective interface which is provided on the side of the first electrode so as to reflect light emitted from the first light-emitting layer and the second light-emitting layer to be emitted from the side of the second electrode; and a second reflective interface and a third reflective interface which are sequentially provided on the side of the second electrode at mutually separated positions in that order in a direction from the first electrode to the second electrode.
    Type: Application
    Filed: January 19, 2011
    Publication date: August 4, 2011
    Applicant: SONY CORPORATION
    Inventors: Toshihiro Fukuda, Jiro Yamada, Yohei Ebihara
  • Publication number: 20110180826
    Abstract: A printing machine includes: a frame; a flat anilox plate that is fixed to and located on the frame and has a plurality of cells on an upper surface of the anilox plate; an ink supplying tool that supplies the ink onto the upper surface of the anilox plate; a surface plate that is fixed to and located on the frame and on which the substrate is placed; and a printing cylinder that is arranged above the frame and is capable of moving above the frame. The printing cylinder has a flexographic plate. The flexographic plate contacts the upper surface of the anilox plate, receives the ink, and transfers the ink onto the substrate. The flexographic plate is made of an elastic material. The viscosity of the ink is in a range of 51 cP to 200 cP (ink temperature: 23° C.) at the shear rate of the ink is 100/second.
    Type: Application
    Filed: January 20, 2011
    Publication date: July 28, 2011
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Shigeru MORITO, Hiroki DOKE
  • Publication number: 20110177640
    Abstract: A method for manufacturing an organic light emitting diode (OLED) display includes forming a first electrode having different thicknesses corresponding to a first pixel, a second pixel, and a third pixel, forming a first emission layer, a second emission layer, and a third emission layer respectively corresponding to the first pixel, the second pixel, and the third pixel, and forming a second electrode on the first emission layer, the second emission layer, and the third emission layer, wherein forming the first electrodes includes forming a first electrode material layer on the substrate, forming a photoresist pattern having different thicknesses corresponding to the first pixel, the second pixel, and the third pixel, respectively, and etching the first electrode material layer along with the photoresist pattern.
    Type: Application
    Filed: December 8, 2010
    Publication date: July 21, 2011
    Inventors: Ji-Hwan Han, Chang-Soo Kim, Yun-Sik Ham, Young-Ro Jung, Beung-Hwa Jeong
  • Publication number: 20110175095
    Abstract: Provided are an organic light-emitting diode (OLED) display apparatus and a method of manufacturing the OLED display apparatus. Pixel-defining layers (PDLs) are formed of inorganic and organic insulating layers to minimize non-uniformities of the thicknesses of organic emission layers (OEMLs) and planarize lower thin film transistors (TFTs). Therefore, a lifespan of the OLED display apparatus is improved.
    Type: Application
    Filed: January 6, 2011
    Publication date: July 21, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jin-Goo KANG, Mu-Hyun Kim, Jae-Bok Kim
  • Publication number: 20110175070
    Abstract: An organic light emitting display device including: a substrate; an organic light emitting device on the substrate to display an image; a sealing member on the organic light emitting device; a phase delay layer disposed on the substrate, the organic light emitting device, or the sealing member; a linear polarization layer disposed on the substrate, the organic light emitting device, the sealing member, or the phase delay layer and is located closer to a display surface of the organic light emitting display where the image is displayed than the organic light emitting device, the sealing member, and the phase delay layer are from the display surface; a multi-phase delay layer between the phase delay layer and the linear polarization layer; and a transmittance control layer disposed on the substrate, the organic light emitting device, the sealing member, the phase delay layer, the multi-phase delay layer, or the linear polarization layer.
    Type: Application
    Filed: January 7, 2011
    Publication date: July 21, 2011
    Inventors: Tae-Kyu Kim, Soon-Ryong Park, Chul-Woo Jeong, Woo-Suk Jung, Sung-Soo Koh, IL-Ryong Cho
  • Publication number: 20110168986
    Abstract: A thin film deposition apparatus, a method of manufacturing an organic light-emitting display device by using the thin film deposition apparatus, and an organic light-emitting display device manufactured by using the method.
    Type: Application
    Filed: January 10, 2011
    Publication date: July 14, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Yun-Mi Lee, Sang-Soo Kim, Chang Mog Jo, Hyun-Sook Park
  • Publication number: 20110156063
    Abstract: An exemplary OLED display device includes a substrate, a colored photo-resist layer and a white OLED arranged in that order. The white OLED includes a reflecting electrode, a transmitting electrode, and an organic white light emitting layer arranged between the reflecting electrode and the transmitting electrode for emitting a white light. The colored photo-resist layer at least includes first through third photo-resist regions, the first through third photo-resist regions contain red pigment particles, green pigment particles and blue pigment particles respectively for extracting red, green and blue light components from the white light. Moreover, the colored photo-resist layer has an expected haze value e.g., greater than 30 by at least utilizing the scattering of the red, green and blue pigment particles and/or mixing of scattering particles that are different from the red, green and blue pigment particles into the first through third photo-resist regions.
    Type: Application
    Filed: November 5, 2010
    Publication date: June 30, 2011
    Applicant: AU OPTRONICS CORP.
    Inventors: Chun-Liang Lin, Yao-An Mo, Chieh-Wei Chen
  • Patent number: 7968899
    Abstract: A light source and method for making the same are disclosed. The light source includes a substrate, a die, and a cup. The substrate has a plurality of electrical traces thereon and the die includes an LED that is connected to two of the traces. The cup overlies the substrate and is filled with an encapsulant material. The die is located within the cup and is encapsulated by the substrate and the encapsulant material. The cup and encapsulant material have substantially the same coefficient of thermal expansion. The cup can include reflective sidewalls positioned to reflect light leaving the die. The cup, encapsulant and substrate can be constructed from the same material.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: June 28, 2011
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Norfidathul Aizar Abdul Karim, Siew It Pang, Kheng Leng Tan, Tong Fatt Chew
  • Patent number: 7968874
    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: Grant
    Filed: August 28, 2007
    Date of Patent: June 28, 2011
    Assignee: Nippon Steel Chemical Co., Ltd.
    Inventors: Hiroshi Miyazaki, Atsuhiko Katayama, Shinji Matsuo, Katsuhide Noguchi
  • Publication number: 20110147716
    Abstract: The invention provides an OLED device comprising an anode, a cathode and a light-emitting layer located therebetween, said light-emitting layer comprising an anthracene host and a styrylamine blue light-emitting compound; and, located between the said light-emitting layer and the cathode, a first electron-transporting layer that is greater than 0.5 nm and less than 5 nm thick; and a second electron-transporting layer consisting essentially of an anthracene located between the first electron-transporting layer and the cathode. The first electron-transporting layer includes a compound with a less negative LUMO level than the anthracene in the second electron-transporting layer. Devices of the invention provide improvement in features such as efficiency.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 23, 2011
    Inventors: MARINA E. KONDAKOVA, Ralph H. Young
  • Publication number: 20110147770
    Abstract: An organic light emitting diode display includes: a substrate main body having a plurality of pixel regions, each including an opaque region and a transparent region; and organic light emitting diodes, thin film transistors, and conductive lines that are formed in the opaque region of the substrate main body. The transparent region includes a transparent square space that has an area that is at least 15% of the entire area of the pixel region.
    Type: Application
    Filed: December 8, 2010
    Publication date: June 23, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Kyu-Hwan HWANG, Seok-Gyu Yoon, Jae-Heung Ha, Young-Woo Song, Jong-Hyuk Lee, Chaun-Gi Choi, Sang-Moo Choi, Keum-Nam Kim, Gun-Shik Kim
  • Publication number: 20110151600
    Abstract: In a method of manufacturing a display device, a first insulating layer is formed on a semiconductor pattern. Ions of a first concentration are injected into source and drain domains of the semiconductor pattern and a lower electrode of the semiconductor pattern by using a mask pattern that selectively overlaps a channel domain of the semiconductor pattern and is positioned on the top of the first insulating layer. The mask pattern is removed. An ion injection process of injecting ions of a second concentration lower than the first concentration into the semiconductor pattern of the channel domain is directly performed in the first insulating layer. A gate electrode that overlaps the channel domain is formed on the top of the first insulating layer. An upper electrode that overlaps the lower electrode is formed on the top of the first insulating layer.
    Type: Application
    Filed: August 16, 2010
    Publication date: June 23, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventor: Hyun-Uk OH
  • Publication number: 20110140114
    Abstract: An organic light emitting display apparatus and a method of manufacturing the same wherein in the organic light emitting device, each of the first to third sub pixels includes: a thin film transistor; a pixel electrode electrically connected to the thin film transistor; and an organic light emitting layer electrically connected to the pixel electrode; and an opposite electrode formed on each of the organic light emitting layers. A pad part is disposed on the non-display region, the pad part including at least one side exposed. The first sub pixel includes a first transmissive conductive layer and a second transmissive conductive layer sequentially stacked between the pixel electrode of the first sub pixel and the organic light emitting layer. The second sub pixel includes the first transmissive conductive layer between the pixel electrode of the first sub pixel and the organic light emitting layer.
    Type: Application
    Filed: October 12, 2010
    Publication date: June 16, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Moo-Soon KO, Jae-ho Yoo
  • Publication number: 20110140139
    Abstract: An organic light emitting diode display is disclosed. The display includes a substrate, a first electrode placed on the substrate, an organic emissive layer placed on the first electrode, a second electrode placed on the organic emissive layer, and a refractive layer disposed between the substrate and the first electrode. The refractive layer is greater in refractive index than the first electrode.
    Type: Application
    Filed: December 13, 2010
    Publication date: June 16, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Hee-Seong JEONG, Sung-Soo KOH, Tae-Gon KIM, Seung-Yeon CHO, Chul-Woo JEONG, Jae-Yong KIM, Chi-Wook AN, Moo-Soon KO, Ok-Byoung KIM
  • Publication number: 20110140138
    Abstract: An organic light emitting display apparatus and a method of manufacturing the same. The display apparatus includes first, second, and third sub-pixels formed on a substrate. The first sub-pixel includes a first pixel electrode, a first transmissive conductive layer formed on the first pixel electrode, a second transmissive conductive layer formed on the first transmissive conductive layer, a first organic light emitting layer formed on the second transmissive conductive layer, and a counter electrode formed on the first organic light emitting layer. The second sub-pixel includes a second pixel electrode, the first transmissive conductive layer formed on the second pixel electrode, a first protector covering an edge of the first transmissive conductive layer, a second organic light emitting layer electrically connected to the first transmissive conductive layer, and the counter electrode formed on the second organic light emitting layer.
    Type: Application
    Filed: October 12, 2010
    Publication date: June 16, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Moo-Soon KO, Jae-Ho Yoo, Gyoo-Chul Jo
  • Patent number: 7960717
    Abstract: An electronic device includes a substrate, a first organic electronic component overlying the substrate, wherein, from a plan view, the first organic electronic component defines a perimeter of a first pixel area, and at least one post structure, wherein the at least one post structure lies within the perimeter of the first pixel area. The electronic device can also include a confinement structure overlying the substrate and having a first opening, wherein from a plan view, the first opening has a perimeter that substantially corresponds to a perimeter of the first organic electronic component.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: June 14, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Ian D. Parker
  • Publication number: 20110133226
    Abstract: An organic light emitting diode device including an anode, a cathode facing the anode, and a light emitting member between the anode and cathode, wherein the light emitting member includes at least two light emitting units displaying the same or different color as one another, and a charge-generation layer between the at least two light emitting units, the charge-generation layer including a first charge-generation layer and a second charge-generation layer that each include an undoped material, and wherein the first charge-generation layer has an ionization energy that is about the same as or less than an electron affinity of the second charge-generation layer.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 9, 2011
    Inventors: Sung-Hun Lee, Jung-Bae Song
  • Publication number: 20110133227
    Abstract: An organic light emitting diode device is disclosed. The organic light emitting diode device includes a light emitting layer which includes at least two blue light emitting units and at least one orange light emitting unit. Such a device exhibits excellent color characteristic and high luminance and efficiency, as well as a longer life span due to the materials used. In particular, the white light represents color of high color purity after it passes through a color filter.
    Type: Application
    Filed: December 1, 2010
    Publication date: June 9, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Sung-Hun Lee, Shinichiro Tamura, Jung-Bae Song