Patents Examined by J. L. Yang
  • OLED display and method of fabricating the same
    Patent number: 9093647
    Abstract: An OLED (OLED) display is provided with a plurality of pixels in each of the OLEDs, each of the OLEDs comprising a first electrode, an organic emission layer, and a second electrode sequentially formed on a substrate, wherein the organic emission layer comprises a mixture of at least two organic materials, and wherein a difference of sublimation temperatures between the at least two organic materials is set to be less than about 50 ° C.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: July 28, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Hongki Park, Yongpal Park, Kyongji Bae
  • Cross-linkable polymer, cross-linked material of the cross-linkable polymer, organic light emitting device comprising the cross-linked material and method of preparing the organic light emitting device
    Patent number: 9087993
    Abstract: A cross-linkable polymer including 1,1?-binaphthyl repeating units linked through 6,6?-arylene groups, a cross-linked material comprising the cross-linkable polymer, an organic light emitting device including the cross-linked material, and a method of preparing the organic light emitting device are each disclosed.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: July 21, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jhun-mo Son, Ho-suk Kang, Hye-yeon Yang, Won-jae Joo, Ji-hoon Lee
  • Heterocyclic compound, light-emitting element, light-emitting device, electronic device, and lighting device
    Patent number: 9079879
    Abstract: An object is to provide a novel heterocyclic compound which can be used for a light-emitting element, as a host material of a light-emitting layer in which a light-emitting substance is dispersed. Other objects are to provide a light-emitting element having low driving voltage, a light-emitting element having high current efficiency, and a light-emitting element having a long lifetime. Provided are a light-emitting element including a compound in which a dibenzo[f,h]quinoxaline ring and a hole-transport skeleton are bonded through an arylene group, and a light-emitting device, an electronic device, and a lighting device each using this light-emitting element. The heterocyclic compound represented by General Formula (G1) below is provided.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: July 14, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroshi Kadoma, Nobuharu Ohsawa, Satoshi Seo
  • Organic light-emitting diode and method for preparing the same
    Patent number: 9083001
    Abstract: An organic light-emitting diode including a film having a thermal evaporation material and metal particles between a first electrode and a substrate and/or on a second electrode.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: July 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ja-Hyun Im, Kwan-Hee Lee, Bum-Suk Kim
  • Compound containing 5-membered heterocycles, organic light-emitting device using same, and terminal comprising the latter
    Patent number: 9079920
    Abstract: Disclosed are a compound including 5-membered heterocycles, an organic electronic device using the same, and a terminal including the latter.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: July 14, 2015
    Assignee: DUK SAN NEOLUX CO., LTD.
    Inventors: Junghwan Park, Daesung Kim, Jungcheol Park, Yongwook Park, Hwasoon Jung, Soungyun Mun, Daehyuk Choi, Dongha Kim, Bumsung Lee
  • Condensed polycyclic compound and organic light emitting device using the same
    Patent number: 9067862
    Abstract: A condensed polycyclic compound is represented by the following Formula [1]: wherein in Formula [1], R1 to R16 each represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, a substituted amino group, an aryl group that may optionally have a substituent group, or a heterocyclic group that may optionally have a substituent group, provided that at least one of R1, R2, R7 and R8 is an aryl group that may optionally have a substituent group, or a heterocyclic group that may optionally have a substituent group.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: June 30, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masashi Hashimoto, Satoshi Igawa, Naoki Yamada, Takayuki Horiuchi
  • Thiadiazole-based compound, light emitting element compound, light emitting element, light emitting device, authentication device, and electronic apparatus
    Patent number: 9072150
    Abstract: A light emitting element includes a light emitting layer that is provided between an anode, a cathode, an anode, and a cathode, and the light emitting layer is configured to include the compound represented by Formula 1 below and the compound represented by Formula RH-1 below. (In Formula 1, A indicates an aryl group, an arylamino group, or triarylamine that may respectively independently include a hydrogen atom, an alkyl group, and a substituent.) (In Formula IRH-1, n indicates a natural number between 1 and 12, and R represents a substituent or a functional group, and indicates an aryl group or an arylamino group that may respectively independently include a hydrogen atom, an alkyl group, and a substituent.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: June 30, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tetsuji Fujita, Hidetoshi Yamamoto
  • Quinoxaline derivative, and light emitting element, light emitting device, and electronic device using the quinoxaline derivative
    Patent number: 9062036
    Abstract: To provide a new bipolar organic compound. In particular, to provide a bipolar organic compound having excellent heat resistance and to provide a bipolar organic compound which is electrochemically stable. Further, to provide a light emitting element and a light emitting device of which a driving voltage and power consumption are reduced by using a new bipolar organic compound. Further, to provide a light emitting element and a light emitting device which have excellent heat resistance by using a new bipolar organic compound. Further, to provide a light emitting element and a light emitting device which have a long life by using a new bipolar organic compound.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: June 23, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masakazu Egawa, Satoshi Seo, Nobuharu Ohsawa
  • Phosphor particles, light-emitting diode, and illuminating device and liquid crystal panel backlight device using them
    Patent number: 9062251
    Abstract: Phosphor particles of generally spherical shape have an average particle diameter of 5-50 ?m and an average roundness of up to 0.3. The phosphor includes a garnet phase having formula: (A1-xBx)3C5O12 wherein A is Y, Gd, or Lu, B is Ce, Nd, or Tb, C is Al or Ga, and 0.002?x?0.2.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: June 23, 2015
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Toshihiko Tsukatani, Kazuhiro Wataya
  • Fluorene compound, light-emitting element, light-emitting device, electronic device, and lighting device
    Patent number: 9059411
    Abstract: One embodiment of the present invention is a fluorene compound. Specifically, one embodiment of the present invention is a fluorene compound in which two 9-phenylfluoren-9-yl groups are each bonded to any of a pyridine skeleton and a pyrimidine skeleton through an arylene group, and in which the arylene group is any of one to three phenylene groups.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: June 16, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masato Suzuki, Harue Osaka, Satoko Shitagaki, Nobuharu Ohsawa, Takao Hamada, Toshiki Hamada
  • Material for organic electroluminescence device and organic electroluminescence device using the same
    Patent number: 9056870
    Abstract: Provided are an organic electroluminescence device, which shows high luminous efficiency, is free of any pixel defect, and has a long lifetime, and a material for an organic electroluminescence device for realizing the device. The material for an organic electroluminescence device is a compound having a ?-conjugated heteroacene skeleton crosslinked with a carbon atom, nitrogen atom, oxygen atom, or sulfur atom. The organic electroluminescence device has one or more organic thin film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin film layers contains the material for an organic electroluminescence device.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: June 16, 2015
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki Kato, Masaki Numata, Kazuki Nishimura, Toshihiro Iwakuma, Chishio Hosokawa
  • Heterocyclic compound
    Patent number: 9056856
    Abstract: Provided is a novel heterocyclic compound which can be used for a light-emitting element, as a host material of a light-emitting layer in which a light-emitting substance is dispersed. A heterocyclic compound represented by a general formula (G1) is provided. In the formula, A represents any of a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted dibenzofuranyl group, and a substituted or unsubstituted carbazolyl group, R11 to R19 separately represent any of hydrogen, an alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: June 16, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroshi Kadoma, Yasushi Kitano, Satoko Shitagaki, Nobuharu Ohsawa, Satoshi Seo
  • Organic light emitting device
    Patent number: 9051513
    Abstract: An organic light emitting device (OLED) includes a polymeric fluorescent light emitting material doped with a phosphorescent dopant to form a fluorescent light emitting layer. The fluorescent light emitting layer may inhibit or prevent device degradation without affecting light emission from the light emitting layer, and may improve the service life of the OLED.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: June 9, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won-jae Joo, Hye-yeon Yang, Jhun-mo Son, Ho-suk Kang
  • Perylene compound and organic light emitting device using the compound
    Patent number: 9051232
    Abstract: Provided is an organic light emitting device having high light emitting efficiency and good emission color purity. The organic light emitting device includes an anode, a cathode, and an organic compound layer which is sandwiched between the anode and the cathode, in which one of the anode and the cathode is transparent or semi-transparent and the organic compound layer contains at least one kind of perylene compound represented by the following general formula (1): where R1 to R8 each represent a hydrogen atom or a substituted or unsubstituted alkyl group; and Ar1 to Ar4 each represent a substituent represented by the following general formula (2) or (3).
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: June 9, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Kosuge, Satoshi Igawa
  • Heterocyclic compound and organic light-emitting device including the same
    Patent number: 9051328
    Abstract: Embodiments of the present invention are directed to heterocyclic compounds and organic light-emitting devices including the heterocyclic compounds. The organic light-emitting devices using the heterocyclic compounds have high-efficiency, low driving voltages, high luminance and long lifespans.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: June 9, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Kook Kim, Seok-Hwan Hwang, Yoon-Hyun Kwak, Hye-Jin Jung, Jong-Hyuk Lee, Jin-O Lim, Hee-Joo Ko
  • Polymer composition and polymer light-emitting device using same
    Patent number: 9045613
    Abstract: Disclosed is a composition containing one or more aromatic ether compounds, one or more compounds having a boiling point of not less than 200° C., and one or more polymers which are charge-transporting or luminescent in a solid state. This composition is characterized in that the compounds having a boiling point of not less than 200° C. are selected from the group consisting of aliphatic compounds which may have a heteroatom, alicyclic compounds which may have a heteroatom, aromatic compounds having two or less substituents and a heterocyclic compounds having two or less substituents.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: June 2, 2015
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Tomoyuki Suzuki, Kiyotoshi Iimura
  • Triphenylene-based compounds and organic electroluminescent device comprising same
    Patent number: 9040173
    Abstract: The present invention relates to a triphenylene-based compound represented by the following Formula 1 and an organic electroluminescent device including the same, and the compound of the present invention has excellent hole injection and/or transporting ability, electron transporting ability, and/or light emitting ability, and particularly, green and red light emitting ability, and thus in an organic electroluminescent device containing the same as a light emitting host material, characteristics such as luminous efficiency, luminance, thermal stability, driving voltage, service life and the like may be improved. In the formula, each of A, L, X and R1 to R19 is the same as those as defined in Detailed Description.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: May 26, 2015
    Assignee: DOOSAN CORPORATION
    Inventors: Jin-Seok Hong, Chang-Ju Shin, Tae-Hyung Kim, Kyoung-Soo Kim
  • Triazole derivative, heterocyclic compound, light-emitting element, light-emitting device, electronic device and lighting device
    Patent number: 9034486
    Abstract: A triazole derivative represented by General Formula (G0) is provided. In the General formula (G0), A represents a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted dibenzothiophenyl group, or a substituted or unsubstituted dibenzofuranyl group, E represents substituted or unsubstituted triazolo [4,3 f]phenanthridine or substituted or unsubstituted triazolo [3,4-?]isoquinoline, and Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: May 19, 2015
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD
    Inventors: Hiroshi Kadoma, Yuko Kawata, Nobuharu Ohsawa, Satoshi Seo
  • Compound and organic light-emitting device including the same
    Patent number: 9028978
    Abstract: A compound represented by Formula 1 below and an organic light-emitting device including an organic layer containing the compound of Formula 1: wherein R1 to R4, X and Y, a and b, and m and n are defined as in the specification.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: May 12, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myeong-Suk Kim, Dong-Woo Shin, Sung-Soo Bae, Ji-Hye Shim, Dae-Yup Shin, Byoung-Ki Choi
  • Organic light-emitting device having light-emitting pattern, method and apparatus for preparing the same
    Patent number: 9028975
    Abstract: Disclosed is a method of producing an organic light emitting device, an organic light emitting device produced by using the method, and an apparatus used in the method. The method includes preparing a first electrode, forming one or more organic material layers on the first electrode, and forming a second electrode on the organic material layers, wherein the method includes changing functions of predetermined pattern regions of one or more layers of the organic material layers or the electrodes.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: May 12, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Min-Soo Kang, Yun-Hye Hahm