Patents Examined by Andrew K Bohaty
  • Patent number: 11678575
    Abstract: An organic light emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the organic layer includes a first compound, a second compound, a third compound, and a fourth compound, and the first compound to the fourth compound satisfy Equations 1 to 8: E1,LUMO?E2,LUMO+0.15 electron volts (eV)??Equation 1 E1,HOMO?E2,HOMO+0.15 eV??Equation 2 E1,T1?E4,T1??Equation 3 E2,T1?E4,T1??Equation 4 E3,T1?E4,T1??Equation 5 E3,LUMO?E2,LUMO+0.1 eV??Equation 6 ?5.6 eV?E3,HOMO??Equation 7 Egap1?Egap3.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: June 13, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwan-Hee Cho, Myeong-Suk Kim, Sung-Wook Kim, Se-Hun Kim, Jin-Soo Hwang
  • Patent number: 11678498
    Abstract: An organic light-emitting device including a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode, the emission layer including a first compound and a second compound; a hole transport region between the first electrode and the emission layer; and an electron transport region, the electron transport region including a buffer layer between the emission layer and the second electrode, the buffer layer including a third compound, and an electron transport layer between the buffer layer and the second electrode, the electron transport layer including a fourth compound, wherein, in the emission layer, the first compound is a phosphorescent host and the second compound is a phosphorescent dopant, wherein the first compound and the third compound are different from each other, wherein the first compound and the third compound each independently include both an electron transport group and a hole transport group.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: June 13, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwan-Hee Cho, Myeong-Suk Kim, Sung-Wook Kim, Chang-Woong Chu
  • Patent number: 11672174
    Abstract: A pyrene-triazine compound, a mixture containing same, a formulation, an organic electronic component, and applications. The pyrene-triazine compound comprises a triazine structure of three strong electron affinity nitrogen atoms and a pyrene fused ring structure. Because the triazine structure has great optoelectronic performance and a planar structured pyrene derivative has great carrier transport performance and optoelectronic performance, the application of the pyrene-triazine compound in the organic electronic component produces a light-emitting component having high efficiency and an extended service life.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: June 6, 2023
    Assignee: GUANGZHOU CHINARAY OPTOELECTRONIC MATERIALS LTD.
    Inventors: Guang Hu, Xi Yang, Junyou Pan
  • Patent number: 11634430
    Abstract: The present specification provides a heterocyclic compound of Chemical Formula 1, and an organic light emitting device comprising the same. The heterocyclic compound used as a material of an organic material layer of an organic light emitting device provides enhanced efficiency, low driving voltage, and enhanced lifetime properties of the organic light emitting device.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: April 25, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Seok Jeong, Minseung Chun, Wanpyo Hong, Jin Joo Kim, Hongsik Yoon, Joongsuk Oh
  • Patent number: 11605791
    Abstract: A compound having a structure selected from the group consisting of: is disclosed.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: March 14, 2023
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Morgan C. Macinnis, George Fitzgerald
  • Patent number: 11600789
    Abstract: A light-emitting element having high emission efficiency is provided. A light-emitting element having a low driving voltage is provided. A novel compound which can be used for a transport layer or as a host material or a light-emitting material of a light-emitting element is provided. A novel compound with a benzofuropyrimidine skeleton is provided. Also provided is a light-emitting element which includes the compound with the benzofuropyrimidine skeleton between a pair of electrodes.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: March 7, 2023
    Inventors: Hideko Inoue, Miki Kanamoto, Hiromi Seo, Satoshi Seo, Tatsuyoshi Takahashi, Tomoka Nakagawa
  • Patent number: 11588114
    Abstract: An organic molecule, comprising a structure of Formula III: especially for use in optoelectronic components.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: February 21, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Larissa Bergmann, Daniel Zink
  • Patent number: 11566034
    Abstract: A metal tetradentate complex is disclosed in which an imidazole moiety is used as a linker in the ligand. The complex is useful as an emitter or other functional roles in an OLED device.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: January 31, 2023
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chun Lin, Zhiqiang Ji
  • Patent number: 11569448
    Abstract: Provided is a cross-linkable arylamine-based compound represented by Formula 1a or 1b, a polymer obtained therefrom, a light-emitting device including the polymer, and an electronic apparatus including the light-emitting device. The light-emitting device includes a first electrode; a second electrode facing the first electrode; and an intermediate layer between the first electrode and the second electrode and comprising an emission layer, wherein the intermediate layer includes at least one of the arylamine-based polymer formed by cross-linking a cross-linkable arylamine-based compound represented by Formula 1a or 1b.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: January 31, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dongwoo Shin, Dukki Kim, Sehun Kim, Jaeyun Kim, Jongwon Park, Seungmook Lee, Jaekook Ha, Naoyuki Ito
  • Patent number: 11569470
    Abstract: An organic light-emitting device includes: a first pixel electrode on a first emission region, a second pixel electrode on a second emission region, and a third pixel electrode on a third emission region; a counter electrode facing each of the first pixel electrode, the second pixel electrode, and the third pixel electrode; and an interlayer between the counter electrode and each of the first pixel electrode, the second pixel electrode, and the third pixel electrode. The interlayer includes an emission layer, and a hole transport region between the emission layer and each of the first pixel electrode, the second pixel electrode, and the third pixel electrode, the hole transport region includes a planarization layer that includes an amine-based compound represented by Formula 1, Formula 2A, or Formula 2B, and the amine-based compound has a crystallization peak having a noise-to-peak ratio of 1.75 or more in an X-ray diffraction (XRD) spectrum.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: January 31, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyomin Ko, Changmin Lee
  • Patent number: 11538995
    Abstract: The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: December 27, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Jochen Pfister, Teresa Mujica-Fernaud, Elvira Montenegro, Frank Stieber, Frank Voges
  • Patent number: 11512086
    Abstract: Provided is a novel compound capable of improving the light emitting efficiency, stability and life span of a device, and an organic electric element and an electronic device using the same.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: November 29, 2022
    Assignee: DUK SAN NEOLUX CO., LTD.
    Inventors: Soung Yun Mun, Sun Hee Lee, Seung Won Yeo
  • Patent number: 11495755
    Abstract: A compound having a structure of 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. Heteroleptic iridium complexes including such compounds, and devices including such compounds are also disclosed.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: November 8, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Raymond Kwong, Bin Ma, Chuanjun Xia, Bert Alleyne, Jason Brooks
  • Patent number: 11495754
    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 OLEDs, particularly as emissive dopants in the emissive region in the OLEDs, 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: January 29, 2020
    Date of Patent: November 8, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jason Brooks, Geza Szigethy, Glenn Morello, Jun Deng, Peter I. Djurovich, Hsiao-Fan Chen
  • Patent number: 11482678
    Abstract: An organic light emitting device including: a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode and including an emission layer, wherein one of the first electrode and the second electrode is a reflective electrode and the other is a semitransparent or transparent electrode, and wherein the organic layer includes a layer having at least one of the compounds having at least one carbazole group, and a flat panel display device including the organic light emitting device. The organic light emitting device has low driving voltage, excellent current density, high brightness, excellent color purity, high efficiency, and long lifetime.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: October 25, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee, Min-Seung Chun
  • Patent number: 11482677
    Abstract: The present specification relates to a compound and an organic electronic device including the same.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: October 25, 2022
    Inventors: Yongbum Cha, Sung Kil Hong, Jungoh Huh, Jin Joo Kim
  • Patent number: 11476429
    Abstract: An organometallic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: October 18, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyuyoung Hwang, Seungyeon Kwak, Soyeon Kim, Sunyoung Lee, Jungin Lee, Hyeonho Choi, Whail Choi, Yoonhyun Kwak, Byoungki Choi
  • Patent number: 11476426
    Abstract: Disclosed is an organic light emitting device including a first electrode, a second electrode opposite to the first electrode, and at least one organic layer interposed between the first and second electrodes. The organic layer includes first and second compounds represented by Formulae A and B, respectively: The organic light emitting device exhibits low driving voltage, high efficiency, and long life. Due to these advantages, the organic light emitting device is useful in a variety of industrial applications, including displays and lighting systems.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: October 18, 2022
    Assignee: SFC CO., LTD.
    Inventors: Se-jin Lee, Taejung Yu, Seok-bae Park, Byung-sun Yang, Su-Jin Lee, Bong-Hyang Lee, Yeongtae Choi
  • Patent number: 11453685
    Abstract: A dibenzoheterocyclic compound wherein band gaps of HOMO and LUMO energy levels of the dibenzoheterocyclic compound are wide, light can be emitted in a deep blue light-emitting region; and the LUMO energy level of the dibenzoheterocyclic compound is low, so the LUMO energy level matches with an electron transport layer for electrons injection and transport. The dibenzoheterocyclic compound has hole transport performance, so as a light-emitting layer material, the dibenzoheterocyclic compound balances the ratio of electrons to holes in a light-emitting layer increasing the combination probability and improving the device light-emitting efficiency. The spatial configuration of the dibenzoheterocyclic compound avoids material stacking molecules, reduces annihilation of excitons, and inhibits efficiency roll-off. The dibenzoheterocyclic compound has thermal stability, so deep blue light can be emitted efficiently and stably.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: September 27, 2022
    Assignee: NINGBO LUMILAN ADVANCED MATERIALS CO., LTD.
    Inventors: Ting-Wei Wei, Huanda Ding, Xiaoxiao Zhang, Zhi-Kuan Chen
  • Patent number: 11437582
    Abstract: Disclosed is an organic electroluminescent device, comprising a substrate and light emitting units formed in sequence on the substrate, characterized in that, each of the light emitting units comprises a first electrode layer (1), a light emitting layer (2) and a second electrode layer (3), the light emitting layer comprises a host material and a dye, the host material is made of materials having both electron transport capability and hole transport capability; at least one material in the host material has a CT excited triplet state energy level T1 greater than its n-? excited triplet state energy level S1, and T1-S1?0.3 eV; or, at least one material in the host material has a CT excited triplet state energy level T1 greater than its n-? excited triplet state energy level S1, and T1-S1?1 eV, with the difference between its n-? excited second triplet state energy level and its CT excited first singlet state energy level being in the range of ?0.1 eV to 0.1 eV.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: September 6, 2022
    Assignees: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD., TSINGHUA UNIVERSITY
    Inventors: Lian Duan, Dongdong Zhang, Song Liu, Jing Xie, Fei Zhao