Patents Examined by Andrew K Bohaty
  • Patent number: 12295261
    Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes an emission layer and a buffer layer between the emission layer and the second electrode, the buffer layer directly contacts the emission layer and includes a first compound and a quinolinolato-based metal complex, and the first compound is a compound including at least one electron transporting moiety.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: May 6, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hojung Syn, Jinwon Sun, Hyun Shin, Bohyun Yoon
  • Patent number: 12289990
    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: February 20, 2024
    Date of Patent: April 29, 2025
    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: 12289986
    Abstract: A compound of Formula I is disclosed. In the structure of Formula I, ring A and ring B are 5- or 6-membered rings; L1, L2, L3, and Z are each linking groups; a, b, and c are each 0 or 1, and a+b+c=2 or 3; K1, K2, K3, and K4 are each a direct bond, O, or S; Z1 to Z6 and X1 to X5 are each C or N; W is a linking group comprising 3 to 5 linking atoms, which can be further substituted; M is Pd or Pt; each RA, RB, RC, RD, RE, R, and R? is selected from H or a variety of substituents, and can be joined to another substituent for form a ring. Organic light emitting devices, consumer products, formulations, and chemical structures containing the compounds are also disclosed.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: April 29, 2025
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Hsiao-Fan Chen, Jason Brooks, Morgan C. Macinnis, Noah Horwitz
  • Patent number: 12284911
    Abstract: A dual host system for OLEDs that contains hole-transporting indolocarbazole and electron-transporting indolocarbazole exhibiting superior performance in the OLEDs is disclosed.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: April 22, 2025
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Lichang Zeng, Vadim Adamovich, Chuanjun Xia, Michael Weaver
  • Patent number: 12284917
    Abstract: The present disclosure relates to an organic light-emitting compound represented by [Chemical Formula A] and an organic light-emitting diode comprising same.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: April 22, 2025
    Assignee: SFC CO., LTD.
    Inventors: Seung-Soo Lee, Tae Gyun Lee
  • Patent number: 12275682
    Abstract: The present application relates to materials for use in electronic devices, to processes for preparing the materials, and to electronic devices containing the materials.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: April 15, 2025
    Assignee: MERCK PATENT GMBH
    Inventors: Elvira Montenegro, Teresa Mujica-Fernaud, Florian Maier-Flaig, Frank Voges
  • Patent number: 12262631
    Abstract: Provided are organometallic compounds. Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: March 25, 2025
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Joseph A. Macor, Tyler Fleetham, Geza Szigethy, Jason Brooks, Hsiao-Fan Chen, Rasha Hamze, Mahesh Paudyal, Muazzam Idris, Douglas Williams
  • Patent number: 12262578
    Abstract: An organic light-emitting device and a flat panel display device, the organic-light emitting device including an anode; a cathode; and an organic layer therebetween including an emission layer, a hole transport region between the anode and the emission layer, the hole transport region including at least one of a hole injection layer, a hole transport layer, and an electron blocking layer, an electron transport region between the emission layer and the cathode, the electron transport region including at least one of a hole blocking layer, an electron transport layer, and an electron injection layer, and a buffer layer between the emission layer and the electron transport region, wherein the buffer layer includes a biscarbazole-based derivative and triphenylene-based derivative, and a triplet energy (ET1) of the biscarbazole-based derivative or the triphenylene-based derivative and a triplet energy (ET2) of a dopant of the emission layer satisfy the following relationship: ET1>ET2.
    Type: Grant
    Filed: December 8, 2023
    Date of Patent: March 25, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Naoyuki Ito, Seul-Ong Kim, Youn-Sun Kim, Dong-Woo Shin, Jung-Sub Lee
  • Patent number: 12252485
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: July 3, 2020
    Date of Patent: March 18, 2025
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Hye-Su Ji, Hyun-Ju La, Won-Jang Jeong, Dong-Jun Kim
  • Patent number: 12232412
    Abstract: Provided are the organometallic compound represented by Formula 1 and an organic light-emitting device including the same: M, X1 to X4, X11, ring CY2 to ring CY4, T1, T2, R1 to R4, and a1 to a4 in Formula 1 are the same as described in the present specification.
    Type: Grant
    Filed: October 30, 2023
    Date of Patent: February 18, 2025
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Minsik Min, Sangmo Kim, Hosuk Kang, Wook Kim, Sungho Nam, Hyejin Bae, Jhunmo Son, Yongsik Jung, Jun Chwae
  • Patent number: 12232416
    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: February 18, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hwan-Hee Cho, Myeong-Suk Kim, Sung-Wook Kim, Se-Hun Kim, Jin-Soo Hwang
  • Patent number: 12225817
    Abstract: A condensed cyclic compound represented by Formula 1: Ar1-L1-L2-Ar2??Formula 1 wherein Ar1, Ar2, L1, and L2 are the same as described in the specification.
    Type: Grant
    Filed: May 9, 2022
    Date of Patent: February 11, 2025
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Sangmo Kim, Hyunjung Kim, Soonok Jeon, Yeonsook Chung, Miyoung Chae, Dalho Huh, Eunsuk Kwon, Jongsoo Kim, Myungsun Sim
  • Patent number: 12207550
    Abstract: Organic electroluminescent materials and devices are disclosed. The organic electroluminescent materials are novel dehydrobenzodiimidazole or dehydrobenzodipyrrole or its analogous structure compounds, which can be used as charge transporting materials or charge injection materials or the like in an electroluminescent device. These novel compounds have deep LUMO energy level, and have better potential and excellent application prospecty in the field of charge-transporting materials, charge injection materials or the like. An organic electroluminescent device and a compound formulation are also disclosed.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: January 21, 2025
    Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventors: Hualong Ding, Chuanjun Xia, Renmao Liu, Zhihao Cui, Chi Yuen Raymond Kwong
  • Patent number: 12178114
    Abstract: Provided are an azide-based compound, an organic light-emitting device including the azide-based compound, and a method of manufacturing the organic light-emitting device.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: December 24, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Junwoo Park, Dukki Kim, Jaeyun Kim, Dongwoo Shin, Jaekook Ha
  • Patent number: 12167687
    Abstract: An organic light-emitting device includes a first hole transport region including a polymer compound that includes a repeating unit derived from a compound including a moiety represented by Formula 1A and a second hole transport region including a first compound and a second compound, the first compound including a repeating unit represented by Formula 1, the second compound being a compound represented by Formula 1, and the third compound being a compound represented by Formula 3.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: December 10, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sehun Kim, Dukki Kim, Seunguk Noh, Dongwoo Shin, Jaekook Ha, Eungdo Kim, Eunju Nam, Hyunwoo Lee, Jaesung Lim
  • Patent number: 12167673
    Abstract: An improved organic light emitting device is disclosed that includes an emissive layer between an anode and a cathode, where the emissive layer has an aggregate of one or more neutral transition metal complexes having a square planar geometry. At least one of the one or more neutral transition metal complexes has a coordination metal selected from Ni, Pd, and Au. When a voltage is applied across the anode and cathode at room temperature, the emissive layer emits a luminescent radiation that has a first luminescent radiation component produced from exciplex formation by the transition metal complexes present in the emissive layer, and the first luminescent radiation component has a peak maximum wavelength ?max that is ?500 nm at room temperature.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: December 10, 2024
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Tyler Fleetham, Morgan C. Macinnis, Hsiao-Fan Chen, Jason Brooks
  • Patent number: 12156464
    Abstract: A composition formed of a mixture of two compounds having similar thermal evaporation properties that are pre-mixed into an evaporation source that can be used to co-evaporate the two compounds into an emission layer in OLEDs via vacuum thermal evaporation process is disclosed. The first and second compounds can have an evaporation temperature T1 and T2, respectively, of 150 to 350° C., and the absolute value of T1-T2 can be less than 20° C. The first compound can have a concentration C1 in the mixture and a concentration C2 in a film formed by evaporating the mixture in a vacuum deposition tool at a constant pressure between 1×10?6 Torr to 1×10?9 Torr, at a 2 ?/sec deposition rate on a surface positioned at a predefined distance away from the mixture being evaporated, where the absolute value of (C1?C2)/C1 is less than 5%.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: November 26, 2024
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chuanjun Xia, Chun Lin, Ting-Chih Wang
  • Patent number: 12096686
    Abstract: The present disclosure provides a novel compound represented by the following Chemical Formula 1, and an organic light emitting device including the same. The compound is used as a material of an organic material layer of the organic light emitting device.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: September 17, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Min Woo Jung, Dong Hoon Lee, Boon Jae Jang, Jungha Lee, Su Jin Han, Seulchan Park, Sunghyun Hwang
  • Patent number: 12096683
    Abstract: An organic electroluminescence device according to an embodiment of the present disclosure includes a first electrode, a second electrode, and an emission layer. The emission layer includes host compounds and dopant compounds. The hot compounds include a first host compound represented by Formula 1, and a second host compound represented by Formula 2, and the dopant compounds include an assistant dopant compound represented by Formula 3, and a light-emitting dopant compound represented by Formula 4: Accordingly, the organic electroluminescence device according to an embodiment may achieve high efficiency and long life.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: September 17, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jungsub Lee, Hyunyoung Kim, Jiyoung Lee, Hyejin Jung, Minje Kim, Eung Do Kim, Hyojeong Kim, Hyosup Shin, Seokgyu Yoon, Youngki Lee, Kunwook Cho, Hyeon Gu Cho, Minsoo Choi, Youngeun Choi, Hyein Jeong, Jaejin Lyu
  • Patent number: 12089492
    Abstract: An organic EL device includes an anode, an emitting layer, an electron transporting zone and a cathode in this sequence, in which the electron transporting zone contains an aromatic heterocyclic derivative represented by a formula (1) below. In the formula (1), X1 to X3 are a nitrogen atom or CR1, and A is represented by a formula (2) below. In the formula (2), L1 is s single bond or a linking group, and HAr is represented by a formula (3) below. In the formula (3), Y1 is an oxygen atom, a sulfur atom or the like, and one of X11 to X18 is a carbon atom bonded to L1 by a single bond and the rest of X11 to X18 are a nitrogen atom or CR13.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: September 10, 2024
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Sayaka Mizutani, Takayasu Sado