Patents Examined by Gregory D Clark
  • Patent number: 11910628
    Abstract: A luminescent film includes a host compound, a blue phosphorescent compound, and a blue fluorescent compound, in which an emission spectrum of the blue phosphorescent compound and an absorption spectrum of the blue fluorescent compound have portions overlapping with each other; shortest wavelength-side maximum emission wavelengths of the blue phosphorescent compound (abbreviated as “BPM” in the expression) and the blue fluorescent compound (abbreviated as “BFM” in the expression) satisfy the following expression (1): ?BFM??BPM: expression (1) in which ?BFM represents the shortest wavelength-side maximum emission wavelength of the blue fluorescent compound and ?BPM represents the shortest wavelength-side maximum emission wavelength of the blue phosphorescent compound; and light emission derived from the blue fluorescent compound is detected.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: February 20, 2024
    Assignee: MERCK PATENT GMBH
    Inventors: Kenichi Tabata, Yuta Nakamura, Taketo Namikawa, Satoru Inoue, Yasuo Miyata, Hiromoto II
  • Patent number: 11897896
    Abstract: Organic electroluminescent materials and devices are disclosed. The organic electroluminescent materials are novel benzodithiophene or its analogous structure compounds, which can be used as charge transporting materials, hole injection materials, or the like in an electroluminescent device. These novel compounds can offer excellent performance compared with existing materials, for example, to further improve the voltage, efficiency and/or lifetime of the OLEDs.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: February 13, 2024
    Inventors: Zhihao Cui, Chi Yuen Raymond Kwong, Chuanjun Xia
  • Patent number: 11895913
    Abstract: The present invention describes carbazole, dibenzofuran, dibenzothiophene and fluorene derivatives which are substituted by electron-deficient heteroaryl groups, in particular for use as triplet matrix materials in organic electroluminescent devices. The invention furthermore relates to a process for the preparation of the compounds according to the invention and to electronic devices comprising these compounds.
    Type: Grant
    Filed: November 25, 2022
    Date of Patent: February 6, 2024
    Assignee: Merck Patent GmbH
    Inventors: Amir Hossain Parham, Anja Jatsch, Thomas Eberle, Tobias Grossmann, Jonas Valentin Kroeber, Lars Dobelmann-Mara
  • Patent number: 11895911
    Abstract: The present disclosure provides an organic light-emitting device comprising a novel compound. When the novel compound is applied as a hole transport material to an organic light emitting device, the novel compound allows the device to have improved drive voltage, efficiency and lifespan characteristics.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: February 6, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Heejun Park, Seonkeun Yoo, Soyoung Jang, Jicheol Shin, Sangbeom Kim, Sunghoon Kim, Tae Wan Lee, Dong Hun Lee, Jeonghoe Heo
  • Patent number: 11895916
    Abstract: A light-emitting device includes: an anode; a cathode facing the anode; an emission layer between the anode and the cathode; and an electron control layer between the emission layer and the cathode, wherein the electron control layer includes an electron control compound represented by Formula 5: A method of manufacturing the light-emitting device includes: forming an emission layer on an anode; and forming an electron control layer on the emission layer, wherein the electron control layer includes an electron control compound represented by Formula 5.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: February 6, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jaekook Ha
  • Patent number: 11889747
    Abstract: This invention discloses iridium complexes with ligands based on a phenyl quinoline backbone with at least a double substitution on the quinoline moiety. These complexes can be used as phosphorescent emitters in OLEDs.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: January 30, 2024
    Assignee: Universal Display Corporation
    Inventors: Pierre-Luc T. Boudreault, Chuanjun Xia, Harvey Wendt
  • Patent number: 11889751
    Abstract: A light emitting device contains an anode, cathode, and two organic layers provided therebetween. One organic layer contains a phosphorescent compound, the second organic layer contains a block copolymer containing an end group, a block that binds to the end group and/or a block that does not bind to the end group, and a crosslinked product of the block copolymer. The non-terminal block contains a non-crosslinkable unit represented by the formula (X) and/or a non-crosslinkable unit represented by the formula (Z). At least one of XI>XII; ZI>ZII; XI+ZI>XII+ZII is satisfied when the total number of units having formula (X) and the total number of units having formula (Z) in the non-terminal block are XI and ZI, respectively, and the total number of units having formula (X) and the total number of units having formula (Z) in the terminal block are XII and ZII, respectively.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: January 30, 2024
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Toshiaki Sasada
  • Patent number: 11873293
    Abstract: An organic molecule for use in optoelectronic devices having a structure of formula I wherein X1 and X2 are at each occurrence independently selected from the group consisting of CR21 and N; X3 and X4 are at each occurrence independently selected from the group consisting of CR22 and N: X5 and X6 are at each occurrence independently selected from the group consisting of CR23 and N; R21, R22, R23 is at each occurrence independently selected from the group consisting of hydrogen, deuterium, C1-C5-alkyl, C2-C8-alkenyl, C2-C8-alkynyl, C6-C18-aryl, and C3-C17-heteroaryl; and at least one variable of X1 and X2 is N, at least one variable of X3 and X4 is N and at least one variable of X5 and X6 is N.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: January 16, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sebastian Dück
  • Patent number: 11873294
    Abstract: Disclosed are a compound with anthrone and N-containing heterocycle and an application thereof in an OLED. The compound contains anthrone and N-containing heterocycle structure which are both strong electron-withdrawing groups. The compound has a deep HOMO energy level and high electron mobility and is suitable for use as hole blocking materials or electron transport materials; the compound can also be used as a host material for electron-type light-emitting layers; in addition, the compound of the present invention has strong group rigidity, not easily causes crystallization and aggregation between molecules, and has good film-forming property. After the compound of the present invention is applied to an OLED device as an organic electroluminescent functional layer material, the current efficiency, power efficiency and external quantum efficiency of the device are greatly improved; moreover, the compound can improve the service life of the device.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: January 16, 2024
    Assignee: JIANGSU SUNERA TECHNOLOGY CO., LTD.
    Inventors: Haifeng Chen, Chong Li, Zhaochao Zhang, Xiaoqing Zhang, Dandan Tang
  • Patent number: 11877511
    Abstract: The present invention describes carbazole, dibenzofuran, dibenzothiophene and fluorene derivatives which are substituted by electron-deficient heteroaryl groups, in particular for use as triplet matrix materials in organic electroluminescent devices. The invention furthermore relates to a process for the preparation of the compounds according to the invention and to electronic devices comprising these compounds.
    Type: Grant
    Filed: November 25, 2022
    Date of Patent: January 16, 2024
    Assignee: Merck Patent GmbH
    Inventors: Amir Hossain Parham, Anja Jatsch, Thomas Eberle, Tobias Grossmann, Jonas Valentin Kroeber, Lars Dobelmann-Mara
  • Patent number: 11871663
    Abstract: A P-type dopant is provided, which is a planar aromatic compound having different numbers of fluorine atoms and cyano groups connected at a periphery thereof, and allows adjustment of highest occupied molecular orbital (HOMO) energy levels and lowest unoccupied molecular orbital (LUMO) energy levels and effectively increases luminous efficiency of a light emitting layer. Moreover, an organic light emitting diode is disclosed, including an anode, a cathode, and a light emitting structure located between the anode and the cathode, wherein a hole injecting layer of the light emitting structure is a hole injecting layer including the P-type dopant described above.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: January 9, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Jiajia Luo
  • Patent number: 11866626
    Abstract: A color conversion film material, a color conversion film, and a display device are provided. The material of the color conversion film includes a first compound and a second compound, and a mass ratio of the first compound and the second compound is (0.4-1.6):(0.3-1.7). A heat stability of the color conversion film is enhanced by using the color conversion film made of the material of the color conversion film. Moreover, a color gamut of the display device is improved, and costs thereof are reduced by applying the color conversion film to the display device.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: January 9, 2024
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Bao Zha
  • Patent number: 11871651
    Abstract: An organic electroluminescence device of an embodiment of the present disclosure includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: January 9, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hirokazu Kuwabara, Yoshiro Sugita, Ryuhei Furue
  • Patent number: 11864461
    Abstract: The present specification relates to a compound represented by the following Formula 1 and an organic light emitting device including the same. The compound is used as a material for an organic material layer of the organic light emitting device.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: January 2, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Sang Duk Suh, Ji Young Choi, Woochul Lee, Joo Ho Kim, Hoon Jun Kim, Dong Hoon Lee
  • Patent number: 11856848
    Abstract: An organic electroluminescence device of one or more embodiments includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer and a second electrode disposed on the electron transport region, wherein the emission layer includes a polycyclic compound represented by Formula 1, thereby showing high emission efficiency: wherein at least one of n1 to n6 is 1.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: December 26, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventor: Yuji Suzaki
  • Patent number: 11849631
    Abstract: An organic molecule for use in optoelectronic devices having a structure of formula I wherein RI and RII are independently selected from the group consisting of hydrogen, deuterium, N(R5)2, OR5, SR5, Si(R5)3, B(OR5)2, OSO2R5, CF3, CN, halogen, C1-C40-alkyl, C1-C40-alkoxy, C1-C40-thioalkoxy, C2-C40-alkenyl, C2-C40-alkynyl, C6-C60-aryl, and C3-C57-heteroaryl, which are optionally substituted with one or more substituents R5.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: December 19, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Daniel Zink, Sebastian Dück
  • Patent number: 11844273
    Abstract: Provided are a heterocyclic compound and an organic light-emitting device including the same. The heterocyclic compound includes a fluoro-containing cyclic group. The heterocyclic compound does not include a carbazole group, a dibenzofuran group, a dibenzothiophene group, and/or a triphenylene group. The 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 and including an organic layer, the organic layer including an emission layer and at least one of the heterocyclic compound.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: December 12, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Junha Park, Munki Sim, Hyoyoung Lee, Youngkook Kim, Seokhwan Hwang
  • Patent number: 11844268
    Abstract: An organic compound represented by formula [1]. The compounds are of the class of diacenaphthochrysene compound, useful as organic light emitting device. In the formula [1], R1 to R18 are each independently selected from the group consisting of a hydrogen atom and a substituent.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: December 12, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yosuke Nishide, Hirokazu Miyashita, Satoru Shiobara, Hiroki Ohrui, Naoki Yamada, Jun Kamatani
  • Patent number: 11839097
    Abstract: Disclosed are a QLED display panel and a preparation method thereof and a display apparatus. The QLED display panel includes: a base substrate; a second electrode, an electron transport layer, a quantum dot luminescent layer, a hole transport layer, a hole injection layer, and a first electrode disposed sequentially on the base substrate; and the QLED display panel further including: a first ionic coordination compound layer between the quantum dot luminescent layer and the hole transport layer.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: December 5, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Dong Li
  • Patent number: 11839138
    Abstract: An organic electroluminescence device includes an anode, an emitting layer, and a cathode, in which the emitting layer contains a first compound and a second compound, the second compound satisfying (a), (b), (c), and (d) of: (a) a half bandwidth being 30 nm or less; (b) ionization potential being 6.0 eV or less; (c) a singlet energy S1(M2) being 2.6 eV or more; and (d) a peak top in a toluene solution being 465 nm or less.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: December 5, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Kazuki Nishimura