Patents Examined by Dawn L. Garrett
  • Patent number: 11795185
    Abstract: Disclosed herein is a compound for electron transport material and an organic light emitting diode including the same. The compound for electron transport material is represented by the following Formula 1. Since the compound for electron transport material, as represented by Formula 1, contains a triazine structure, the compound has high electron mobility and is thus suitable as an electron transport material. The organic light emitting diode includes an electron transport layer formed of the compound as represented by Formula 1 and thus can have increased lifespan.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: October 24, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Dohan Kim, Hyeseung Kang, Seonkeun Yoo
  • Patent number: 11785837
    Abstract: An organic electroluminescence device of an embodiment of the present disclosure includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region, wherein the emission layer may include a polycyclic compound represented by Formula 1, thereby exhibiting high luminous efficiency: wherein at least one selected from R1 to R3 is represented by Formula 2:
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: October 10, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hirokazu Kuwabara, Ryuhei Furue
  • Patent number: 11778897
    Abstract: A compound comprising a first ligand LA having a Formula selected from: is disclosed. In the Formulas rings B and C are 5-membered or 6-membered aromatic or heteroaromatic ring; Z1, Z2, X1, X2, X3, X4, X5, and X6 are each C or N, but X1, X2, X3, or X4 is C when it forms a direct bond to Z2; Y is selected from CRR?, NR?, O, S, and Se; R, R?, RA, RB, RC, and RD are each selected from a variety of substituents; the ligand LA is coordinated to a metal M by the dashed lines, and optionally to other ligands. Organic light emitting devices and consumer products containing the compounds are also disclosed.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: October 3, 2023
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jerald Feldman, Pierre-Luc T. Boudreault
  • Patent number: 11770943
    Abstract: According to an embodiment of the present disclosure, an organic light emitting diode includes: a first electrode; a second electrode overlapping the first electrode; an emission layer positioned between the first electrode and the second electrode; an electron injection layer positioned between the emission layer and the second electrode; and an electron injection delay layer positioned between the emission layer and the electron injection layer, wherein the electron injection layer includes a first material made of a metal and a second material made of a metal halide, and the electron injection delay layer has a thickness of about 20 ? to about 140 ?.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: September 26, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Chan Kim, Won Jong Kim, Dong Kyu Seo, Ji Hye Lee, Sang Hoon Yim, Won Suk Han
  • Patent number: 11751476
    Abstract: The present invention relates to an electron buffering material and an organic electroluminescent device comprising the same in an electron buffer layer. It is possible to provide an organic electroluminescent device having excellent luminous efficiency and lifespan characteristics by using the electron buffering material according to the present invention.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: September 5, 2023
    Inventors: Sang-Hee Cho, Jeong-Hwan Jeon, Hong-Yeop Na, Ji-Song Jun, Jae-Hoon Shim, Kyung-Hoon Choi, Chi-Sik Kim, Young-Jun Cho
  • Patent number: 11744144
    Abstract: An organic electroluminescent element including a luminescent compound represented by the following formula (in which R1 to R14 each independently represent a hydrogen atom, a deuterium atom, an alkyl group, an aryl group, a heteroaryl group, a fluorine atom, a cyano group, an amino group, an alkoxy group, an aryloxy group, a thio group, or a silyl group, and 8 to 13 groups out of R1 to R14 each represent a hydrogen atom or a deuterium atom) in a light emitting layer has high durability and excellent chromaticity.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: August 29, 2023
    Assignee: UDC Ireland Limited
    Inventors: Toru Watanabe, Yuki Hirai, Tianhua Ouyang, Koji Takaku, Wataru Sotoyama, Tetsu Kitamura, Yasunori Yonekuta
  • Patent number: 11737353
    Abstract: The present disclosure relates to a plurality of host materials and an organic electroluminescent device comprising the same. The organic electroluminescent device of the present disclosure can exhibit excellent lifespan characteristics while maintaining high luminous efficiency by including a specific combination of a plurality of host compounds.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: August 22, 2023
    Inventors: Sang-Hee Cho, Doo-Hyeon Moon, Bitnari Kim
  • Patent number: 11718606
    Abstract: The present application relates to a compound of Chemical Formula 1 and an organic light emitting device including the same.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: August 8, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Yongbum Cha, Jin Joo Kim, Sung Kil Hong, Seong So Kim
  • Patent number: 11723263
    Abstract: With a light-emission-layer material comprising: a novel polycyclic aromatic compound (1) or a multimer thereof in which a plurality of aromatic rings are linked by a boron atom and a nitrogen atom; and a specific anthracene-based compound (3) that achieves optimum light-emission characteristics in combination with said polycyclic aromatic compound or a multimer thereof, it is possible to provide an organic EL element having optimum light-emission characteristics. Ring A to ring C are an aryl ring or the like, Y1 represents B, X1 and X2 represent N—R, R of the N—R is an aryl or the like, and Ar3 and Ar4 are a hydrogen atom, a phenyl, a group represented by formula (4), or the like.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: August 8, 2023
    Assignees: Kwansei Gakuin Educational Foundation, SK Materials JNC Co., Ltd.
    Inventors: Takuji Hatakeyama, Akihide Mizutani, Toshihiro Koike
  • Patent number: 11711934
    Abstract: The present invention relates to metal amides of general Formula Ia and for their use as hole injection layer (HIL) for an Organic light-emitting diode (OLED), and a method of manufacturing Organic light-emitting diode (OLED) comprising an hole injection layer containing a metal amide of general Formula Ia:
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: July 25, 2023
    Assignee: Novaled GmbH
    Inventors: Markus Hummert, Thomas Rosenow
  • Patent number: 11711970
    Abstract: To provide an organic electroluminescent device in which energy efficiency is improved. An organic electroluminescent device includes a pair of electrode layers formed of an anode layer and a cathode layer, and a luminescent layer arranged between the pair of electrode layers, in which the luminescent layer includes a host material and a dopant material, and the dopant material is an anthracene-based compound represented by formula (1), and the luminescent layer further includes a polycyclic aromatic compound represented by formula (2) or a multimer of a polycyclic aromatic compound having a plurality of structures represented by formula (2).
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: July 25, 2023
    Assignees: KWANSEI GAKUIN EDUCATIONAL FOUNDATION, SK MATERIALS JNC CO., LTD.
    Inventors: Takuji Hatakeyama, Yukihiro Fujita, Guofang Wang
  • Patent number: 11706975
    Abstract: Disclosed are a compound for an organic optoelectronic device represented by Chemical Formula 1, a composition for an organic optoelectronic device, an organic optoelectronic device including the same, and a display device. Details of Chemical Formula 1 are the same as defined in the specification.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: July 18, 2023
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Kipo Jang, Jun Seok Kim, Jinhyun Lui, Chang Ju Shin, Sujin Han, Youngkwon Kim, Eun Sun Yu, Sung-Hyun Jung, Ho Kuk Jung
  • Patent number: 11700769
    Abstract: An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which at least one kind of compound represented by the following general formula is contained in any layer of the at least one organic layer, is an organic electroluminescent element, in which the generation of dark spots during driving is inhibited:
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: July 11, 2023
    Assignee: UDC IRELAND LIMITED
    Inventors: Toshihiro Ise, Saki Takada
  • Patent number: 11700768
    Abstract: Provided is a compound of Formula 1: where X is O or S; Ar1 is an aryl having 6 to 20 carbon atoms substituted with at least one functional group selected from the group consisting of cyano, pyridinyl, benzimidazolyl and diphenylphosphine oxide, or a substituted or unsubstituted heteroaryl having 3 to 20 carbon atoms containing at least one N; and Ar2 is a functional group of Formula 2 below, with the proviso that Ar1 and Ar2 are different from each other, where Ar3 is an aryl having 6 to 20 carbon atoms, and m is an integer of 0 to 2, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: July 11, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Jung Hoon Yang, Dong Hoon Lee, Jung Oh Huh, Boon Jae Jang, Min Young Kang, Dong Uk Heo, Mi Yeon Han, Min Woo Jung
  • Patent number: 11678572
    Abstract: Disclosed are a compound for an organic optoelectronic device represented by Chemical Formula 1, a composition for an organic optoelectronic device, an organic optoelectronic device including the same, and a display device. Details of Chemical Formula 1 are the same as defined in the specification.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: June 13, 2023
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Kipo Jang, Jun Seok Kim, Jinhyun Lui, Chang Ju Shin, Sujin Han, Youngkwon Kim, Eun Sun Yu, Sung-Hyun Jung, Ho Kuk Jung
  • Patent number: 11678569
    Abstract: A compound represented by the following formula (1) wherein the symbols are as defined in the description, and an organic electroluminescent device containing the compound.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: June 13, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hiroaki Itoi, Tasuku Haketa, Yusuke Takahashi, Shota Tanaka, Hirokatsu Ito
  • Patent number: 11643414
    Abstract: The present invention relates to compounds of formula (1). The compounds are suitable for use in electronic devices, in particular organic electroluminescent devices, comprising these compounds. In some embodiments, the compounds are used as matrix materials for phosphorescent or fluorescent emitters as well as a hole-blocking or electron-transport.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: May 9, 2023
    Assignee: MERCK PATENT GMBH
    Inventors: Amir Parham, Tobias Grossmann, Jonas Kroeber
  • Patent number: 11637249
    Abstract: Provided is an organic electroluminescent element including a light emitting layer containing, as a dopant, at least two compounds selected from a compound group consisting of a polycyclic aromatic compound represented by the following general formula (1) and a multimer thereof: wherein the symbols are defined in the specification.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: April 25, 2023
    Assignees: KWANSEI GAKUIN EDUCATIONAL FOUNDATION, SK MATERIALS JNC CO., LTD.
    Inventors: Takuji Hatakeyama, Katsuya Masuda, Motoki Yanai
  • Patent number: 11637251
    Abstract: Novel compounds comprising heteroleptic iridium complexes are provided. The compounds have a particular combination of ligands which includes a single pyridyl dibenzo-substituted ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants, to provide devices having improved efficiency, lifetime, and manufacturing.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: April 25, 2023
    Assignee: Universal Display Corporation
    Inventors: Chuanjun Xia, Raymond C. Kwong, Suman Layek
  • Patent number: 11629126
    Abstract: The present invention relates to compounds of formula (1). The compounds are suitable for use in electronic devices, in particular organic electroluminescent devices, comprising these compounds. In some embodiments, the compounds are used as matrix materials for phosphorescent or fluorescent emitters as well as a hole-blocking or electron-transport materials.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: April 18, 2023
    Assignee: MERCK PATENT GMBH
    Inventors: Katja Maria Scheible, Fabrice Eckes, Holger Heil, Beate Burkhart, Dominik Joosten, Elvira Montenegro