Patents Examined by Andrew K Bohaty
  • Method of manufacturing light-emitting display device and light-emitting display device manufactured using the method
    Patent number: 10312443
    Abstract: A method of manufacturing a light-emitting display device, the method including forming a first electrode on a substrate, the substrate including a plurality of pixel regions divided by a non-pixel region, in each of the pixel regions; forming a pixel defining layer, the pixel defining layer having a plurality of pixel openings, each of the pixel openings exposing the first electrode, on the substrate; forming a hole injection layer on the first electrode; forming a lyophilic layer on the hole injection layer to completely overlap the hole injection layer; forming a hole transport layer on the lyophilic layer; forming a light-emitting layer on the hole transport layer; and forming a second electrode on the light-emitting layer.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: June 4, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyang Shik Kong, Yoon Ho Kang, Dong Hoon Kwak, Sung Woong Kim, Yool Guk Kim, Jae Hoon Kim, Ye Seul Na, Seok Soon Back, Jae Kwon Hwang
  • Delayed fluorescence material for organic electroluminescence device
    Patent number: 10312455
    Abstract: The present invention discloses a delayed fluorescence material having general formula (1), and an organic EL device using the material as delayed fluorescence material of emitting layer or phosphorescent light emitting host of emitting layer can display excellent performance. wherein W independently represents an oxygen atom, a sulfur atom and a selenium atom, R1 to R9 are the same definition as described in the present invention.
    Type: Grant
    Filed: March 26, 2017
    Date of Patent: June 4, 2019
    Inventor: Feng-Wen Yen
  • Spiro dihydroacridine derivatives and the use thereof as materials for organic electroluminescence devices
    Patent number: 10305040
    Abstract: The present invention relates to compounds of formulae (1), (2) or (3) that are suitable for use in electronic devices, and to electronic device, in particular organic electroluminescence devices, containing these compounds.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: May 28, 2019
    Assignee: Merck Patent GmbH
    Inventors: Philipp Stoessel, Elvira Montenegro, Esther Breuning
  • Organic electroluminescent materials and devices
    Patent number: 10301338
    Abstract: Tetradentate ligand based on strapped phenenthradine-imidazole (SIP) based Pt or Pd complexes useful as emitters in PHOLEDs is disclosed.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: May 28, 2019
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventor: Hsiao-Fan Chen
  • Organic electroluminescent material containing alkaline earth metal based metal-organic frameworks and organic electroluminescent device using the same
    Patent number: 10283714
    Abstract: An organic electroluminescent material is shown in the following general formula (1), {[M(L)(H2O)x].(H2O)y}n??General Formula (1) wherein x is between 1 and 4, y is between 1 and 8, and n is a positive integer. M is any one selected from the group consisting of beryllium (Be), strontium (Sr), and radium (Ra). L is an organic ligand containing a naphthalene group and an anhydride group. M and L form metal-organic frameworks. An organic electroluminescent device containing the organic electroluminescent material is also disclosed.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: May 7, 2019
    Assignees: ACADEMIA SINICA, NATIONAL TAIWAN UNIVERSITY
    Inventors: Kuang-Lieh Lu, Muhammad Usman, Yang-Fang Chen, Golam Haider, Shruti Mendiratta, Tzuoo-Tsair Luo
  • Organic electroluminescent materials and devices
    Patent number: 10276805
    Abstract: Imidazophenanthridine ligands and metal complexes are provided. The compounds exhibit improved stability through a linking substitution that links a nitrogen bonded carbon of an imidizole ring to a carbon on the adjacent fused aryl ring. The compounds may be used in organic light emitting devices, particularly as emissive dopants, providing devices with improved efficiency, stability, and manufacturing. In particular, the compounds provided herein may be used in blue devices having high efficiency.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: April 30, 2019
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jason Brooks, Geza Szigethy, Glenn Morello, Jun Deng, Peter I. Djurovich, Hsiao-Fan Chen
  • Polymer, composition for organic electroluminescent element, organic electroluminescent element, organic EL display device, and organic EL lighting device
    Patent number: 10270035
    Abstract: The object of the present invention is to provide a polymer capable of being insolubilized at a low temperature in a short time, having a high hole injecting and transporting ability and a high durability, and a composition for organic electroluminescent element comprising the polymer. The polymer of the present invention comprises a specific crosslinkable group.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: April 23, 2019
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Koichiro Iida, Yanjun Li, Tomokazu Umemoto, Qi Gao, Hideki Goromaru
  • Organic electroluminescent materials and devices
    Patent number: 10263198
    Abstract: Imidazophenanthridine ligands and metal complexes are provided. The compounds exhibit improved stability through a linking substitution that links a nitrogen bonded carbon of an imidizole ring to a carbon on the adjacent fused aryl ring. The compounds may be used in organic light emitting devices, particularly as emissive dopants, providing devices with improved efficiency, stability, and manufacturing. In particular, the compounds provided herein may be used in blue devices having high efficiency.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: April 16, 2019
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jason Brooks, Geza Szigethy, Glenn Morello, Jun Deng, Peter I. Djurovich
  • Organic electroluminescent materials and devices
    Patent number: 10256419
    Abstract: Imidazophenanthridine ligands and metal complexes are provided. The compounds exhibit improved stability through a linking substitution that links a nitrogen bonded carbon of an imidizole ring to a carbon on the adjacent fused aryl ring. The compounds may be used in organic light emitting devices, particularly as emissive dopants, providing devices with improved efficiency, stability, and manufacturing. In particular, the compounds provided herein may be used in blue devices having high efficiency.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: April 9, 2019
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jason Brooks, Geza Szigethy, Glenn Morello, Jun Deng, Peter I. Djurovich, Hsiao-Fan Chen
  • Electronic device containing cyclic lactams
    Patent number: 10249831
    Abstract: The present invention relates to electronic devices containing special cyclic lactams, more particularly organic electroluminescent devices, and to special cyclic lactams for use in electronic devices, more particularly in organic electroluminescent devices.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: April 2, 2019
    Assignee: Merck Patent GmbH
    Inventors: Philipp Stoessel, Amir Hossain Parham, Christof Pflumm, Anja Jatsch, Thomas Eberle, Jonas Valentin Kroeber
  • Aromatic amine derivative, and organic electroluminescent element
    Patent number: 10246441
    Abstract: An aromatic amine derivative including a substituent A and a substituent B each represented by the formula (1) or (2) and having an arylene group bound to a carbazole structure, in which the substituent A and the substituent B include groups different from each other in the position at which the arylene group is bonded to the carbazole structure, and the substituent A and the substituent B are bonded to the same nitrogen atom or different nitrogen atoms in the molecule; an organic electroluminescent device including an organic thin-film layer formed of one or more layers including at least a light emitting layer, the organic thin-film layer being interposed between a cathode and a anode, in which at least one layer of the organic thin-film layer contains the aromatic amine derivative, and the molecules are rarely crystallized.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: April 2, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Tomoki Kato
  • Organic electroluminescence device and organic light emitting medium
    Patent number: 10243145
    Abstract: An organic electroluminescence device having a layer of an organic light emitting medium which comprises (A) a specific arylamine compound and (B) at least one compound selected from specific anthracene derivatives, spirofluorene derivatives, compounds having condensed rings and metal complex compounds and is disposed between a pair of electrodes and an organic light emitting medium comprising the above components (A) and (B) are provided. The organic electroluminescence device exhibits a high purity of color, has excellent heat resistance and a long life and efficiently emits bluish to yellowish light. The organic light emitting medium can be advantageously used for the organic electroluminescence device.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: March 26, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahide Matsuura, Masakazu Funahashi, Kenichi Fukuoka, Chishio Hosokawa
  • Polymer compound and organic semiconductor device using the same
    Patent number: 10239886
    Abstract: A polymer compound comprising a structural unit represented by the formula (1): wherein a ring A and a ring B represent a heterocyclic ring. A ring C represents a condensed aromatic heterocyclic ring not having a line-symmetric axis and a rotational axis. Z1 and Z2 represent a group represented by the formula (Z-1), a group represented by the formula (Z-2), a group represented by the formula (Z-3), a group represented by the formula (Z-4), a group represented by the formula (Z-5), a group represented by the formula (Z-6) or a group represented by the formula (Z-7). R represents an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an alkylthio group, a cycloalkylthio group, an aryl group or a monovalent heterocyclic group.].
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: March 26, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Tomoya Kashiki, Eiji Yoshikawa
  • Compound and organic electroluminescent device comprising the same
    Patent number: 10236451
    Abstract: Disclosed is a novel benzimidazole compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which comprises the benzimidazole compound in one or more organic material layers thereof so as to thereby achieve enhanced characteristics, such as light-emitting efficiency, driving voltage, and lifespan.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: March 19, 2019
    Assignee: DOOSAN CORPORATION
    Inventors: Hyung Chan Bae, Young Mi Beak, Tae Hyung Kim, Ho Cheol Park, Chang Jun Lee, Jin Young Shin
  • Organic light emitting diode
    Patent number: 10236464
    Abstract: An organic light emitting diode, including a first electrode; a second electrode facing the first electrode, the second electrode including magnesium; an emission layer between the first electrode and the second electrode; and an electron injection layer between the second electrode and the emission layer, the electron injection layer including a dipole material including a first component and a second component having different polarities, the dipole material including halide, and a content of the magnesium included in the second electrode being in a range of from 10 to 40 volume %.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: March 19, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Chan Kim, Won Jong Kim, Eung Do Kim, Dong Kyu Seo, Da Hea Im, Sang Hoon Yim, Chang Woong Chu
  • Organic electroluminescent materials and devices
    Patent number: 10230060
    Abstract: Electronic displays including organic light emitting diodes having an organic layer including a compound including a ligand having the formula: is disclosed. In these formulas, each R1, R2, and R3 is independently selected from hydrogen, alkyl, and aryl; at least one of R1 and R2 is a branched alkyl containing at least 4 carbon atoms, where the branching occurs at a position further than the benzylic position; where R1 and R3 are mono-, di-, tri-, tetra-, or no substitutions; and R2 is mono-, di-, or no substitutions. Emissive layers including a host material doped with these heteroleptic iridium complexes are also disclosed.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: March 12, 2019
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Raymond Kwong, Bin Ma, Chuanjun Xia, Bert Alleyne, Jason Brooks
  • Organic light-emitting device
    Patent number: 10230051
    Abstract: An organic light-emitting device includes a first electrode, a second electrode facing the first electrode, and an emission layer disposed between the first electrode and the second electrode; an electron transport region disposed between the emission layer and the second electrode; and a hole transport region disposed between the first electrode and the emission layer, wherein the electron transport region comprises at least one of an electron transport material represented by Formula 1 below; and the hole transport region comprises at least one of a hole transport material represented by Formula 2 or 3 below:
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: March 12, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myeong-Suk Kim, Sung-Wook Kim, Jae-Hong Kim, Jin-Soo Hwang
  • Compound and organic electronic device using the same
    Patent number: 10224489
    Abstract: A novel compound is disclosed, which comprises: a 7-membered ring segment, which is formed by a cis-stilbene segment and a bridge atom with four bonds; and a fluorene segment connecting to the bridge atom with a double bond. In addition, an organic electronic device is also disclosed, and an organic layer therein comprises the novel compound of the present invention.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: March 5, 2019
    Assignee: NICHEM FINE TECHNOLOGY CO., LTD.
    Inventors: Chien-Tien Chen, Chi-Chung Chen
  • Organic compound and electronic device using same
    Patent number: 10217947
    Abstract: An organic compound is disclosed. The organic compound includes a cis-stilbene segment, a bridge atom segment having a bridge atom with four bonds, and the bridge atom is connected to the cis-stilbene segment with two of the four bonds to form a 7-membered ring structure, and an imidazole segment connected to the cis-stilbene segment.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: February 26, 2019
    Assignee: NICHEM FINE TECHNOLOGY CO., LTD.
    Inventors: Chien-Tien Chen, Chi-Chung Chen
  • Organic compound and electronic device using same
    Patent number: 10211410
    Abstract: An organic compound is disclosed. The organic compound includes a cis-stilbene segment, a bridge atom segment having a bridge atom with four bonds, and the bridge atom is connected to the cis-stilbene segment with two of the four bonds to form a 7-membered ring structure, and a quinoxaline segment connected to the cis-stilbene segment.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: February 19, 2019
    Assignee: NICHEM FINE TECHNOLOGY CO., LTD
    Inventors: Chien-Tien Chen, Chi-Chung Chen