Patents Examined by Dawn L. Garrett
  • Organic compound, light-emitting element, display module, lighting module, light-emitting device, display device, electronic device, and lighting device
    Patent number: 9917261
    Abstract: A novel organic compound is provided. Alternatively, an organic compound that can be used as an electron-transport material of a light-emitting element is provided. An organic compound in which heteroaromatic groups each including two pyridine rings are bonded to the 2- and 8-positions of dibenzofuran is provided. The organic compound is an organic compound that can be used as an electron-transport material of a light-emitting element.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: March 13, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Yui Yamada, Tsunenori Suzuki, Satoshi Seo
  • Light-emitting element, light-emitting device, lighting device, and electronic device
    Patent number: 9917259
    Abstract: A light-emitting element is provided, in which n (n is a natural number of two or more) EL layers are provided between an anode and a cathode. Between the m-th (m is a natural number, 1?m?n?1) EL layer and the (m+1)-th EL layer, a first layer containing any of an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal compound, an alkaline earth metal compound, and a rare earth metal compound, a second layer containing a substance having high electron-transport properties in contact with the first layer, and a charge-generation layer containing a substance having high hole-transport properties and an acceptor substance in contact with the second layer are provided in this order over the anode. The charge-generation layer does not have a peak of an absorption spectrum in a visible light region.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: March 13, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiromi Nowatari, Satoshi Seo
  • Heterocyclic compound, light-emitting element, light-emitting device, electronic device, and lighting device
    Patent number: 9368732
    Abstract: To provide a novel heterocyclic compound capable of being used as a host material in which a light-emitting substance is dispersed. To provide a light-emitting element having a long lifetime. A heterocyclic compound in which a dibenzo[f,h]quinoxalinyl group and a benzo[b]naphtho[1,2-d]furanyl group are bonded through an arylene group having 6 to 13 carbon atoms. The dibenzo[f,h]quinoxalinyl group, the benzo[b]naphtho[1,2-d]furanyl group, and the arylene group separately are unsubstituted or have, as a substituent, an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 13 carbon atoms.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: June 14, 2016
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yasushi Kitano, Hiroshi Kadoma, Satoko Shitagaki, Satoshi Seo, Hiromi Seo, Tatsuyoshi Takahashi
  • Organic electroluminescent element using pyrene derivative
    Patent number: 9353027
    Abstract: An organic electroluminescence device includes a pair of electrodes and an organic compound layer therebetween. The organic compound layer includes an emitting layer. The emitting layer includes a pyrene derivative represented by formula (1), such that a content of the pyrene derivative in the emitting layer is 50 to 100 wt %. Ar1 and Ar2 are independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms. X1 and X3 to X8 are a hydrogen atom. X2 is a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, provided that Ar1 or Ar2 is different from X2. In a case where any of Ar1, Ar2, and X2 is the aryl group having a substituent, the substituent is independently an alkyl group, a cycloalkyl group, an aryl group, a silyl group, or a cyano group.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: May 31, 2016
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahiro Kawamura, Yuichiro Kawamura, Yumiko Mizuki, Hiroyuki Saito, Hirokatsu Ito
  • Substituted biaryl compounds for light-emitting devices
    Patent number: 9328094
    Abstract: Some substituted biaryl ring systems may be useful in light-emitting devices, such as those comprising a light-emitting diode. For example, substituted bipyridinyl or substituted phenylpyridinyl may be useful in these devices. The substituted biaryl ring system may have at least two different substituents, including one on each ring on the biaryl system. The first substituent may include optionally substituted carbazolyl, optionally substituted diphenylamine, optionally substituted diphenylaminophenyl, and optionally substituted carbazolylphenyl. The second substituent may include optionally substituted benzimidazol-2-yl, optionally substituted benzoxazol-2-yl, and an optionally substituted benzothiazol-2-yl.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: May 3, 2016
    Assignee: NITTO DENKO CORPORATION
    Inventors: Shijun Zheng, David T. Sisk, Jensen Cayas
  • Organic light-emitting diode including multi-layered hole transporting layer, and flat display device including the organic light-emitting diode
    Patent number: 9299936
    Abstract: An organic light-emitting diode including: a first mixed layer between an emission layer and a first electrode and including first and second compounds; a second mixed layer between the emission layer and the first mixed layer and including third and fourth compounds; a first charge generation layer between the first mixed layer and the first electrode and including the first and second compounds and a first charge generation material; a second charge generation layer between the first mixed layer and the second mixed layer and including the third and fourth compounds and a second charge generation material; and a buffer layer between the emission layer and the second mixed layer, the first and the third compounds are each independently a compound represented by Formula 1 below, and the second compound and fourth compounds are each independently a compound represented by Formula 2 below:
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: March 29, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sam-Il Kho, Mie-Hwa Park, Hye-In Jeong, Yoon-Hyun Kwak, Dae-Yup Shin, Kwan-Hee Lee
  • Organic light-emitting device and method of producing the same
    Patent number: 9293725
    Abstract: An organic light-emitting device and a method of producing the same, the device including a substrate; a first electrode layer on the substrate; an emission layer on the first electrode layer; an electron transport layer on the emission layer, the electron transport layer including first electron transport layers and a second electron transport layer between the first electron transport layers and the second electron transport layer including a lanthanide metal; and a second electrode layer on the electron transport layer.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: March 22, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Eung-Do Kim
  • Thiadiazole, compound for light-emitting elements, light-emitting element, light-emitting apparatus, authentication apparatus, and electronic device
    Patent number: 9287510
    Abstract: The thiadiazole represented by formula (1), when used as a light-emitting material in a light-emitting element, allows the light-emitting element to emit near-infrared light: wherein, in formula (1), each A independently represents a hydrogen atom, an alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl amino group, or a substituted or unsubstituted triarylamine.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: March 15, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hidetoshi Yamamoto, Tetsuji Fujita
  • Blue fluorescent composition and organic electroluminescent device using the same
    Patent number: 9284486
    Abstract: A blue fluorescent compound includes a host material being capable of transporting an electron or a hole; and a dopant material represented by following Formula 1: [Formula 1] wherein each of the R1, the R2, the R3, the R4, and the R5 is selected from hydrogen, fluorine, C1-C6 substituted or non-substituted alkyl group, C6-C30 substituted or non-substituted aromatic group, and C6-C30 substituted or non-substituted heterocyclic group, and two of the R1, the R2, the R3, the R4 and the R5 are fluorine and wherein the R6 is selected from the C6-C30 substituted or non-substituted aromatic group, and the C6-C30 substituted or non-substituted heterocyclic group.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: March 15, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Seung-Jae Lee, Soon-Wook Cha, In-Bum Song, Jung-Keun Kim, Do-Han Kim, Chun-Gun Park, Jong-Kwan Bin, Nam-Sung Cho
  • Styryl-based compound, composition containing styryl-based compound, and organic light emitting diode including styryl-based compound
    Patent number: 9288869
    Abstract: A styryl-based compound represented by Formula 1, a composition containing the styryl-based compound, and an organic light-emitting diode (OLED) including the styryl-based compound: The styryl-based compound may exhibit high heat resistance and thus an OLED including the same may have low driving voltage, high brightness, high efficiency, and long lifetime.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: March 15, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Hyun Han, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jin-O Lim, Soo-Yon Kim, Dae-Yup Shin, Jong-Hyuk Lee
  • Aromatic amine derivative, and organic electroluminescent element comprising same
    Patent number: 9278926
    Abstract: Provided is an aromatic amine derivative represented by the formula N(ArA)(ArB)(ArC) as an organic EL device material capable of reducing the driving voltage of an organic EL device, and improving its luminous efficiency and device lifetime. ArA represents the formula (II-1) or (II-2). La represents an arylene group or the like, Ara represents an aryl group or the like, and n represents 2 or 3. ArB represents the formula (III). Lb represents a single bond or the like, R1 and R2 each represent an alkyl group or the like, o and p each represent 0 to 3 or the like, X represents an oxygen atom or the like, and R3, R4 and R5 each represent an alkyl group or the like. ArC represents an aryl group, a heteroaryl group, or the formula (II-1), (II-2), or (III).
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: March 8, 2016
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Tomoki Kato
  • Light emitting layer-forming solid material, organic electroluminescent device and method for producing the same
    Patent number: 9277619
    Abstract: A light emitting layer-forming solid material including at least one host material and at least one light-emitting material, wherein the light emitting layer-forming solid material is used for forming a white light emitting layer having a single layer structure by an evaporation method.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: March 1, 2016
    Assignee: UDC Ireland
    Inventor: Hiroaki Hyuga
  • Benzo[k]fluoranthene derivative and organic electroluminescence device containing the same
    Patent number: 9273002
    Abstract: A benzo[k]fluoranthene derivative represented by the following formula (1): wherein R1 to R12 are as defined in the specification. The benzo[k]fluoranthene derivative represented by the formula (1) reduces a driving voltage of an organic electroluminescence device and makes it possible to realize light emission with high efficiency and long lifetime.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: March 1, 2016
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hirokatsu Ito, Masahiro Kawamura, Yuichiro Kawamura, Yumiko Mizuki, Hiroyuki Saito
  • Anthracene compound and organic light emitting diode including the same
    Patent number: 9276220
    Abstract: An anthracene compound and organic light emitting diode including the same are disclosed. The organic light emitting diode includes, at least two stacks formed between a first electrode and a second electrode and a charge generation layer (CGL) including an N-type CGL and a P-type CGL formed between the stacks, wherein the N-type CGL is formed of the anthracene compound.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: March 1, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Hyoseok Kim, Jeongdae Seo, Eunju Jeon, Shinhan Kim
  • Organic light-emitting device
    Patent number: 9269911
    Abstract: An organic light-emitting device that achieves highly efficient emission and low-voltage operation is provided. The organic light-emitting device contains a 9H-xanthen-9-one derivative.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: February 23, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Horiuchi, Jun Kamatani, Naoki Yamada, Kengo Kishino, Akihito Saitoh
  • Electroactive material and devices made with such materials
    Patent number: 9269909
    Abstract: There is provided a compound having Formula I or Formula II where: Ar1-Ar4 are the same or different and are H, D, or aryl.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: February 23, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Kalindi Dogra, Adam Fennimore, Christina M Older, Robert A. Eakin
  • Aromatic amine derivatives and organic electroluminescent elements using same
    Patent number: 9260390
    Abstract: Provided are an organic EL device material that reduce the driving voltage of an organic EL device and increase the lifetime of the device as compared with a conventional organic EL device material. Also provided are organic electroluminescence devices containing the organic EL device material.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: February 16, 2016
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Tomoki Kato
  • Organic light-emitting diode including multi-layered hole transporting layer, and flat display device including the organic light-emitting diode
    Patent number: 9257653
    Abstract: An organic light-emitting diode including: a first mixed layer between an emission layer and a first electrode and including first and second compounds; a second mixed layer between the emission layer and the first mixed layer and including third and fourth compounds; a first charge generation layer between the first mixed layer and the first electrode and including the first and second compounds and a first charge generation material; a second charge generation layer between the first mixed layer and the second mixed layer and including the third and fourth compounds and a second charge generation material; and a buffer layer between the emission layer and the second mixed layer, the first and the third compounds are each independently a compound represented by Formula 1 below, and the second compound and fourth compounds are each independently a compound represented by Formula 2 below:
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: February 9, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sam-Il Kho, Mie-Hwa Park, Hye-In Jeong, Yoon-Hyun Kwak, Dae-Yup Shin, Kwan-Hee Lee
  • Organic electroluminescence element and method for manufacturing organic electroluminescence element
    Patent number: 9257651
    Abstract: Disclosed are: an organic electroluminescent element which has high power efficiency, excellent resistance to luminance decrease due to continuous operation and excellent storage stability at high temperatures, while being reduced in chromatically change of color developing light; and a method for manufacturing the organic electroluminescent element. Specifically disclosed is an organic electroluminescent element that has a positive electrode and a negative electrode on a supporting substrate, while comprising an organic layer, which contains at least one light-emitting layer, between the positive electrode and the negative electrode. The organic electroluminescent element is characterized in that at least one layer in the organic layer contains a crown ether compound and a compound having a dibenzofuran skeleton.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: February 9, 2016
    Assignee: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Taro Konuma, Kazutoshi Murota
  • Carborane compound, organic light-emitting diode including the same and flat display device including organic light-emitting diode
    Patent number: 9231216
    Abstract: A compound represented by Formula 1 below: (R1)a—CB—[Ar]n—CB—(R2)b??<Formula 1> wherein CB denotes carborane, Ar is a substituted or unsubstituted phenylene group, and a detailed description of R1, R2, a, b, and n is provided in the detailed description. An organic light-emitting diode including an organic layer including the compound has high luminous efficiency.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: January 5, 2016
    Assignees: Samsung Display Co., Ltd., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sun-Hee Lee, Dae-Yup Shin, Won-Jun Song, Kwan-Hee Lee, Young-Kyu Do, Min-Hyung Lee, Kang-Mun Lee, Hye-Jin Bae