Fluroescent, Phosphorescent, Or Luminescent Layer Patents (Class 428/690)
  • Patent number: 11121327
    Abstract: The invention relates to polycondensed lactam compounds as materials for use in electronic devices, and electronic devices, in particular organic electroluminescent devices, containing said materials.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: September 14, 2021
    Assignee: Merck Patent GmbH
    Inventors: Amir Hossain Parham, Christof Pflumm, Thomas Eberle, Anja Jatsch, Elvira Montenegro, Jonas Valentin Kroeber, Rouven Linge
  • Patent number: 11117857
    Abstract: A compound represented by formula (1) provides a high performance organic electroluminescence device and a novel material for realizing such an organic electroluminescence device: wherein R1 to R6, a to f, L1 to L3, and Ar are as defined in the description.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: September 14, 2021
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki Kato, Taro Yamaki, Masahiro Kawamura, Hirokatsu Ito
  • Patent number: 11121324
    Abstract: Disclosed are electrically conductive polymer compositions, and their use in organic electronic devices. The electrically conductive polymer compositions include an intrinsically electrically conductive polymer having Formula II: where Q, R, R?, R?, m, n, and o are defined in the present disclosure.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: September 14, 2021
    Inventors: Nora Sabina Radu, Arjan Zoombelt
  • Patent number: 11114625
    Abstract: An organic light-emitting device includes a first electrode; a second electrode; an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, and an electron transport region between the emission layer and the second electrode. The emission layer includes a first compound represented by Formula 1 and a second compound represented by any one of Formulae 2-1 to 2-5. The electron transport region includes a third compound represented by Formula 7. The organic light-emitting device may have low driving voltage, high efficiency, and a long lifespan.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: September 7, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwan-Hee Cho, Myeong-Suk Kim, Sung-Wook Kim
  • Patent number: 11111572
    Abstract: A vapor deposition mask includes a frame and a metal film supported by the frame, wherein the metal film includes a mask region arranged with a plurality of pixel opening parts corresponding to a display region of a display device, and an alignment region arranged in a periphery of the mask region, the alignment region includes a first opening part and a plurality of second opening parts arranged in a periphery of the first opening part, and a maximum width of the second opening part is smaller than a maximum width of the first opening part.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: September 7, 2021
    Assignee: Japan Display Inc.
    Inventors: Noriyoshi Kanda, Takeshi Ookawara, Mitsugu Tamekawa
  • Patent number: 11107992
    Abstract: A compound of the formula, plus devices incorporating this compound, and a method of marking such devices: wherein: A represents a phenyl group, a naphthyl group, a biphenyl group or two phenyl groups linked by a C1-C8 alkyl chain; B1 and B2 in each occurrence are independently selected side chains of the structure —(Y1)n-L-(Y2)m—X wherein: Y1 and Y2 in each occurrence are independently selected from O, CO2— and CH2O, m and n in each occurrence are independently selected from 0 or 1; L in each occurrence is a C2-C14 straight chain alkyl group; and X in each occurrence is an independently selected cross linkable group; C is a side chain of the structure —(Z1)p-M-(Z2)q-E wherein: Z1 and Z2 are independently selected from O, CO2— and CH2O, p and q in each occurrence are independently selected from 0 or 1; M is a C1-C14 straight chain alkyl group; and E comprises a charge transport group; D is a side chain of the structure —(W1)r—N—(W2)s—F wherein: W1 and W2 are independently selected from O, CO2— and
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: August 31, 2021
    Assignee: Lomox Limited
    Inventors: Matthew P. Aldred, Luke William Judd, Clare Foden
  • Patent number: 11098019
    Abstract: Fluorene derivatives that are connected in one or more of the 1-, 1?-, 4-, or 4?-positions in any combination to a carbon atom of a diaryl substituted triazinyl or pyrimidinyl derivative. The fluorene derivatives are not spirobifluorene derivatives. 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 an electron-transport layer.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: August 24, 2021
    Assignee: Merck Patent GmbH
    Inventors: Anja Jatsch, Amir Hossain Parham, Thomas Eberle, Tobias Grossmann, Jonas Valentin Kroeber
  • Patent number: 11088237
    Abstract: A self-light emitting display device comprises a circuit board including a driving thin-film transistor; a cathode; an organic film disposed between the circuit board and the cathode; an anode disposed between the circuit board and the organic film; and a color filter disposed between the circuit board and the anode and including a first color filter unit, a second color filter unit, and a third color filter unit; wherein the third color filter unit has a portion disposed between the first color filter unit and the second color filter unit, and wherein the third color filter unit is thicker than the first color filter unit and the second color filter unit.
    Type: Grant
    Filed: September 28, 2019
    Date of Patent: August 10, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seungbum Lee, Wonrae Kim, Sooin Kim
  • Patent number: 11088340
    Abstract: To provide a display device including a light emitting element layer including an anode electrode, a light emissive layer formed on the anode electrode, and a cathode electrode formed on the light emissive layer, and a bank formed on the lower electrode and having an opening, in which the lower electrode is partially exposed, wherein the light emissive layer includes a p-doped hole transport layer containing p-dopant, and the p-doped hole transport layer contains a larger amount of p-dopant in an area close to an end portion of the opening of the bank than the amount of p-dopant contained in other areas.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: August 10, 2021
    Assignee: Japan Display Inc.
    Inventor: Hironori Toyoda
  • Patent number: 11081658
    Abstract: A novel compound is disclosed which includes a ligand LA of Formula I, Formula II, Formula III, or Formula IV: wherein: ring B is independently a 5-membered or 6-membered carbocyclic or heterocyclic ring; X1 to X4 are each independently selected from the group consisting of C, N, and CR; at least one pair of adjacent X1 to X4 are each C and fused to a structure of Formula V where indicated by “”; X5 to X12 are each independently C or N; the maximum number of N within a ring is two; Z and Y are each independently selected from the group consisting of O, S, Se, NR?, CR?R?, SiR?R?, and GeR?R?; RB and RC each independently represents zero, mono, or up to a maximum allowed substitutions to its associated ring; each of RB, RC, R, R?, and R? is independently hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl,
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: August 3, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Pierre-Luc T. Boudreault, Bert Alleyne, Zhiqiang Ji
  • Patent number: 11081648
    Abstract: The present invention provides an organic compound represented by: an organic light emitting diode and an organic light emitting display device using the organic compound. The organic compound of the present invention is capable of reducing a driving voltage of an organic light emitting diode and improving an emitting efficiency and a lifetime of the organic light emitting diode and the organic light emitting display device including the organic compound.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: August 3, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seung-Hee Yoon, Sung-Hoon Joo, Seon-Keun Yoo, Ji-Cheol Shin
  • Patent number: 11081649
    Abstract: Provided are a compound represented by Formula 1, an organic electric element comprising a first electrode, a second electrode, and an organic material layer formed between the first electrode and the second electrode and comprising the compound of Formula 1, and an electronic device comprising the element, where the driving voltage of the organic electronic device is lowered, and the luminous efficiency and life time of the organic electronic device is improved.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: August 3, 2021
    Assignee: DUK SAN NEOLUX CO., LTD.
    Inventors: Yun Suk Lee, Sun-Hee Lee, Kiho So, Hyoung Keun Park, Jonggwang Park, Yeonseok Jeong, Junghwan Park, Sunpil Hwang
  • Patent number: 11069862
    Abstract: Provided are an organic electroluminescence device, which shows high luminous efficiency, is free of any pixel defect, and has a long lifetime, and a material for an organic electroluminescence device for realizing the device. The material for an organic electroluminescence device is a compound having a n-conjugated heteroacene skeleton crosslinked with a carbon atom, nitrogen atom, oxygen atom, or sulfur atom. The organic electroluminescence device has one or more organic thin film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin film layers contains the material for an organic electroluminescence device.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: July 20, 2021
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki Kato, Masaki Numata, Kazuki Nishimura, Toshihiro Iwakuma, Chishio Hosokawa
  • Patent number: 11069871
    Abstract: Provided is an organic white light emitting element (EL) including: a reflective electrode, a light extraction electrode, and an organic layer arranged therebetween, the organic layer including: a blue light emitting layer (BL); and a long-wavelength light emitting layer, the long-wavelength light emitting layer arranged between the BL and the reflective electrode, the BL provided at such a position as to satisfy Equation given below: z=?×?1/4? where z represents an optical distance between the reflective electrode and an interface of the BL on the reflective electrode side, ? represents a phase of light reflected by the reflective electrode in an emission wavelength region of the BL, and ?1 represents a wavelength in a visible light region, and the EL has a resonator structure defined between the reflective electrode and the light extraction electrode and has a maximum peak resonant wavelength in a blue light wavelength region.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: July 20, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takayuki Ito
  • Patent number: 11063229
    Abstract: Novel heteroleptic iridium carbene complexes are provided, which contain at least two different carbene ligands. Selective substitution of the carbene ligands provides for phosphorescent compounds that are suitable for use in a variety of OLED devices.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: July 13, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chun Lin, Chuanjun Xia, Jui-Yi Tsai, Bin Ma
  • Patent number: 11063221
    Abstract: The present application relates to a substituted benzanthracene compound of a formula (I) or (II). The application furthermore relates to an electronic device which comprises the said benzanthracene compound.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: July 13, 2021
    Assignee: Merck Patent GmbH
    Inventors: Holger Heil, Lara-Isabel Rodriguez, Beate Burkhart, Sebastian Meyer
  • Patent number: 11063220
    Abstract: An organic light-emitting device includes an emission layer and an electron transport layer. The emission layer includes at least one compound represented one of Formula 1, Formula 2 and/or Formula 3. The electron transport layer includes at least one compound represented by Formula 4 and/or Formula 5. An organic light-emitting device including the emission layer and the electron transport layer has high emission efficiency and an improved lifetime.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: July 13, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seul-Ong Kim, Dong-Woo Shin
  • Patent number: 11056655
    Abstract: Disclosed are a compound for an organic optoelectric device represented by Chemical Formula 1, an organic optoelectric device including the same, and a display device. Details of Chemical Formula 1 are the same as defined in the specification.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: July 6, 2021
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Kipo Jang, Byoungkwan Lee, Youngkwon Kim, Eun Sun Yu, Sung-Hyun Jung, Ho Kuk Jung
  • Patent number: 11056662
    Abstract: The present application discloses an organic light-emitting device and a display device. The organic light-emitting device comprises an anode, a cathode, and a blue light emitting layer, a green light emitting layer and a red light emitting layer between the anode and the cathode, and the blue light emitting layer comprises a blue thermally-activated delayed fluorescent material with a mass percent of 60-80%, the green light emitting layer comprises a green phosphorescent material and/or a green thermally-activated delayed fluorescent material, and the red light emitting layer comprises a red phosphorescent material and/or a red thermally-activated delayed fluorescent material.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: July 6, 2021
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Angran Zhang, Hamada Yuji, Jinghua Niu, Xiangcheng Wang, Shuang Cheng, Run Yang
  • Patent number: 11050035
    Abstract: A light emitting diode includes a first electrode overlapping a second electrode, an emission layer between the first and second electrodes. a first hole injection layer and a second hole injection layer between the first electrode and the emission layer, and a first hole transporting layer between the first hole injection layer and the second hole injection layer. Each of the first and second hole injection layers includes an inorganic dipole material. At least one of the first hole injection layer or the second hole injection layer including an organic material.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: June 29, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Chan Kim, Won Jong Kim, Ji Young Moon, Dong Kyu Seo, Myung Chui Yeo, Ji Hye Lee, Yoon Hyeung Cho
  • Patent number: 11050025
    Abstract: A material for an organic electroluminescent device having high emission efficiency and long life and an organic electroluminescent device including the same. The material for an organic electroluminescent device is represented by the following Formula 1.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: June 29, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hiroaki Itoi, Ichinori Takada, Koushin Matsuoka, Masatsugu Ueno, Naoya Sakamoto, Hiromi Nakano, Nobutaka Akashi, Hideo Miyake, Xiulan Jin, Asami Sakamoto, Junta Fuchiwaki
  • Patent number: 11050028
    Abstract: A phosphorescent metal complexes containing a ligand LA having the formula selected from is disclosed.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: June 29, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Pierre-Luc T. Boudreault, Bert Alleyne
  • Patent number: 11043648
    Abstract: The present disclosure provides a white organic electroluminescent device, comprising: a substrate; an anode layer; a first light emitting layer formed from a red organic fluorescent material, a first energy-sensitized organic material and a first hole-type organic host material; a second light emitting layer formed from a green organic fluorescent material, a second energy-sensitized organic material and a second hole-type organic host material; and a cathode layer.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: June 22, 2021
    Assignee: Changchun Institute of Applied Chemistry Chinese Academy of Sciences
    Inventors: Liang Zhou, Hongjie Zhang
  • Patent number: 11042058
    Abstract: An image display device includes a wavelength conversion layer containing quantum dots and a light reflecting layer provided on an observer side with respect to the wavelength conversion layer. The light reflecting layer includes, in a reflection wavelength region, a peak wavelength of a light source that emits excitation light to be used for emission of the quantum dots. The light reflecting layer is a polarizing reflective layer.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: June 22, 2021
    Assignee: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventor: Kouichi Tanaka
  • Patent number: 11038137
    Abstract: The present invention relates to compounds containing fused dibenzo more-than-six-membered heterocycles or azaheterocycles. These compounds may be useful as host materials for phosphorescent electroluminescent devices.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: June 15, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Peter Wolohan, Diana Drennan, George Fitzgerald
  • Patent number: 11038115
    Abstract: A compound including a first ligand LA of Formula I, useful as an emitter in OLEDs is disclosed.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: June 15, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Mingjuan Su, Jerald Feldman
  • Patent number: 11024816
    Abstract: Compounds having a structure of Formula I, Formula II, or Formula III, devices containing the same, and formulations containing the same are described. In Formulas (I), (II), and (III), X2 to X8 are C or N; at least one of X2 to X8 is N; R1, R2, R3, and R4 are independently alkyl or cycloalkyl; at least one of R1 to R4 has at least two C atoms; R5 is hydrogen, deuterium, alkyl, cycloalkyl, or a combination thereof; R6, R7, and R8 are independently hydrogen, deuterium, alkyl, cycloalkyl, and combinations thereof; and n is 1 or 2.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: June 1, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Pierre-Luc T. Boudreault, Alexey Borisovich Dyatkin, Chuanjun Xia, Hitoshi Yamamoto
  • Patent number: 11024811
    Abstract: A composition of materials including a first compound having a structure according to Formula I
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: June 1, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Lichang Zeng, Suman Layek, Pierre-Luc T. Boudreault, Zeinab Elshenawy, Gregg Kottas, Alexey Borisovich Dyatkin, Scott Joseph, Vadim Adamovich, Chuanjun Xia, Ting-Chih Wang, Walter Yeager
  • Patent number: 11024815
    Abstract: The present invention relates to metal complexes and to electronic devices, especially organic electroluminescent devices, comprising these metal complexes, especially as emitters, and in particular monometallic metal complex containing a hexadentate tripodal ligand in which three bidentate sub-ligands coordinate to a metal and the three bidentate sub-ligands, which may be the same or different, are joined via a bridge.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: June 1, 2021
    Assignee: Merck Patent GmbH
    Inventors: Philipp Stoessel, Nils Koenen, Philipp Harbach, Christian Ehrenreich
  • Patent number: 11018310
    Abstract: A highly rigid tetradentate ligand is combined with a gold(III) ion as a thermally stable tetradentate gold(III) complex. The tetradentate gold(III) complex is a tetradentate gold(III) compound that can be used as a light-emitting material which can be used for fabricated of light-emitting devices such as an organic light-emitting diode (OLED). The tetradentate gold(III) compound can be deposited as a layer or a component of a layer using a solution-process or a vacuum deposition process. The luminescent tetradentate gold(III) compounds are robust and can provide electroluminescence (EL) with a high efficiency and brightness.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: May 25, 2021
    Assignee: The University of Hong Kong
    Inventors: Vivian Wing-Wah Yam, Hok-Lai Wong, Yiu-Wing Wong, Mei-Yee Chan
  • Patent number: 11008510
    Abstract: A light-emitting element includes an EL layer between a pair of electrodes. The EL layer contains a first compound and a second compound. The first compound is a phosphorescent iridium metal complex having a LUMO level of greater than or equal to ?3.5 eV and less than or equal to ?2.5 eV, and the second compound is an organic compound having a pyrimidine skeleton. The light-emitting element includes an EL layer between a pair of electrodes. The EL layer contains a first compound and a second compound. The first compound is a phosphorescent iridium metal complex having a diazine skeleton, and the second compound is an organic compound having a pyrimidine skeleton.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: May 18, 2021
    Inventors: Kyoko Takeda, Harue Osaka, Satoko Shitagaki, Nobuharu Ohsawa, Satoshi Seo, Hiromi Seo
  • Patent number: 11011711
    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: February 3, 2017
    Date of Patent: May 18, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Soyeon Kim, Yoonhyun Kwak, Ohyun Kwon, Hyeonho Choi, Hyun Koo, Youngjae Park
  • Patent number: 11005059
    Abstract: Disclosed is an organic light emitting display device. The organic light emitting display device includes a first electrode on the first pixel and the second pixel, a hole transport layer on the first electrode, a first emission layer on the hole transport layer in correspondence with the first pixel, a second emission layer on the hole transport layer in correspondence with the second pixel, an exciton confinement layer on the first emission layer and the second emission layer, and a second electrode on the exciton confinement layer. The second emission layer includes a mixed host and an electron-type host.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: May 11, 2021
    Assignee: LG Display Co., Ltd.
    Inventor: HeuiDong Lee
  • Patent number: 11005051
    Abstract: A compound comprising a ligand LA of Formula I: as well as, devices and formulations containing the compound of Formula 1 are disclosed. In the compounds, having a ligand La of Formula I: wherein R1 represents mono, or di-substitution, or no substitution; wherein R2 represents di, tri, or tetra-substitution; wherein R is selected from hydrogen, deuterium, alkyl, cycloalkyl, and combinations thereof; wherein R1 and R2 are each independently selected from hydrogen, deuterium, alkyl, cycloalkyl, aryl, and combinations thereof; wherein at least one pair of adjacent R2 substitutions are joined to form a fused ring; wherein the ligand LA is coordinated to a metal M; and wherein the ligand LA is optionally linked with other ligands to comprise a tridentate, tetradentate, pentadentate or hexadentate ligand.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: May 11, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jui-Yi Tsai, Gregg Kottas, Walter Yeager, Zeinab Elshenawy, Chuanjun Xia, Geza Szigethy, Jason Brooks
  • Patent number: 11005060
    Abstract: An electroluminescent device including a first electrode, a hole transport layer disposed on the first electrode, a first emission layer disposed on the hole transport layer, the first emission layer including a first light emitting particle on which a first ligand having a hole transporting property is attached, a second emission layer disposed on the first emission layer, the second emission layer including a second light emitting particle on which a second ligand having an electron transporting property is attached, an electron transport layer disposed on the second emission layer, and a second electrode disposed on the electron transport layer, wherein a solubility of the first ligand in a solvent is different than a solubility of the second ligand in the solvent and a display device including the same.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: May 11, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae Young Chung, Moon Gyu Han, Oul Cho, Tae Hyung Kim, Sujin Park, Hongkyu Seo, Eun Joo Jang
  • Patent number: 11005058
    Abstract: A light emitting device including an emissive material comprising quantum dots is disclosed. In one embodiment, the device includes a cathode, a layer comprising a material capable of transporting and injection electrons comprising an inorganic material, an emissive layer comprising quantum dots, a layer comprising a material capable of transporting holes, a layer comprising a hole injection material, and an anode. In certain embodiments, the hole injection material can be a p-type doped hole transport material. In certain preferred embodiments, quantum dots comprise semiconductor nanocrystals. In another aspect of the invention, there is provided a light emitting device wherein the device has an initial turn-on voltage that is not greater than 1240/?, wherein ? represents the wavelength (nm) of light emitted by the emissive layer. Other light emitting devices and a method are disclosed.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: May 11, 2021
    Assignee: SAMSUNG RESEARCH AMERICA, INC.
    Inventors: Zhaoqun Zhou, Peter T. Kazlas, Mead Misic, Zoran Popovic, John Spencer Morris
  • Patent number: 10998507
    Abstract: This invention discloses metal complexes containing carborane moiety. The metal complexes showed desired properties in term of EQE, LT, and CIE.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: May 4, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jui-Yi Tsai, Gregg Kottas
  • Patent number: 10998515
    Abstract: The present invention provides a solar cell and a method for manufacturing the same, the solar cell including a first electrode formed on a substrate, a nanocrystal layer including a plurality of nanocrystals formed on the first electrode so as to contact the first electrode, a hole transport layer formed on the first electrode so as to cover the plurality of nanocrystals, a photoactive layer formed on the hole transport layer, and a second electrode formed on the photoactive layer.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: May 4, 2021
    Inventors: Jea Gun Park, Tea Hun Shim, Dal Ho Kim, Ji Heon Kim, Jae Woo Shin, Joo Hyoung Park
  • Patent number: 10995069
    Abstract: Provided are an organic electric element and an electronic device thereof comprising a mixture of the compounds of Formula 1 and Formula 2 as a phosphorescent host material, and thereby obtaining high light emission efficiency, low driving voltage, and improved lifetime.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: May 4, 2021
    Assignee: DUK SAN NEOLUX CO., LTD.
    Inventors: Mun Jae Lee, Soung Yun Mun, Jae Taek Kwon, Dae Sung Kim, Moo Jin Park, Sun Hee Lee, Chi Hyun Park, Hyun Ju Song, Bum Sung Lee
  • Patent number: 10998505
    Abstract: Disclosed herein is an organic light-emitting diode, comprising: a first electrode, a second electrode opposite the first electrode, and a light-emitting layer and an electron-density-controlling layer in that order between the first electrode and the second electrode, wherein the electron-density-controlling layer includes at least one selected from among compounds represented by Chemical Formulas A to D, and the light-emitting layer includes at least one anthracene compound represented by Chemical Formula H. The electron-density-controlling layer may be disposed between the light-emitting layer and an electron transport layer.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: May 4, 2021
    Assignee: SFC CO., LTD.
    Inventors: Soon-Wook Cha, Young-Hwan Park, Seo-Yeon Yoon, So Young Shim
  • Patent number: 10991895
    Abstract: Ir phenyl parazolepyrazole complexes substituted with one or more strong electron withdrawing groups such as cyano groups resulted in enhancing the metal to ligand charge transfer (MLCT) which in turn resulted in enhanced emission efficiency and red shifted emission.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: April 27, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Raymond Kwong, Kit Yee Tsang, Siu Tung Lam, Chi Hang Lee, Sze Kui Lam
  • Patent number: 10991896
    Abstract: A compound having an ancillary ligand L1 having the formula: Formula I is disclosed. The ligand L1 is coordinated to a metal M having an atomic number greater than 40, and two adjacent substituents are optionally joined to form into a ring. Such compound is suitable for use as emitters in organic light emitting devices.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: April 27, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Pierre-Luc T. Boudreault, Alexey Dyatkin, David Zenan Li, Scott Joseph, Chuanjun Xia, Hitoshi Yamamoto, Michael S. Weaver, Bert Alleyne, James Fiordeliso
  • Patent number: 10991900
    Abstract: A light-emitting device includes an anode; a cathode; and an emissive layer disposed between the anode and the cathode, the emissive layer including quantum dots dispersed in a crosslinked matrix formed from one or more crosslinkable charge transport materials. A method of forming the emissive layer of a light-emitting device includes depositing a mixture including quantum dots and one or more crosslinkable charge transport materials on a layer; and subjecting at least a portion of the mixture to UV activation to form an emissive layer including quantum dots dispersed in a crosslinked matrix.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: April 27, 2021
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Enrico Angioni, James Andrew Robert Palles-Dimmock, Edward Andrew Boardman, Tim Michael Smeeton
  • Patent number: 10991891
    Abstract: Provided are a condensed cyclic compound represented by the following formulas and an organic light-emitting device including the same. The organic lightemitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, where the organic layer may include an emission layer and at least one of the condensed cyclic compound described above.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: April 27, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Munki Sim, Junha Park, Hyoyoung Lee, Youngkook Kim, Seokhwan Hwang
  • Patent number: 10985323
    Abstract: A light-emitting device includes a plurality of organic EL elements. Each of the organic EL elements includes a reflection electrode, a hole transport region, an electron-trapping luminescent layer, and a light extraction electrode in this order. The hole transport region has a sheet resistance of 4.0×107 ?/sq. or more at a current of 0.1 nA/pixel, and the total thickness of the hole transport region and the electron-trapping luminescent layer is equivalent to an optical path length enabling emission from the electron-trapping luminescent layer to be enhanced.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: April 20, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Norifumi Kajimoto, Tetsuo Takahashi, Koji Ishizuya, Itaru Takaya, Hirokazu Miyashita, Takayuki Ito, Hiroaki Sano
  • Patent number: 10978656
    Abstract: An organic light emitting display device includes a plurality of pixels on a substrate, the plurality of pixels having a red subpixel, a green subpixel, and a blue subpixel; an anode on the substrate; a first hole transfer layer on the anode; a first emission layer on the first hole transfer layer in the red subpixel, the green subpixel, and the blue subpixel; a first electron transfer layer on the first emission layer; an N-type charge generation layer on the first electron transfer layer; a second hole transfer layer on the N-type charge generation layer; a second emission layer on the second hole transfer layer in the red subpixel, the green subpixel, and the blue subpixel; a second electron transfer layer on the second emission layer; and a cathode on the second electron transfer layer,
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: April 13, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventor: EunJung Park
  • Patent number: 10978648
    Abstract: Novel heteroleptic iridium carbene complexes are provided. The complexes have lower-than expected sublimation temperatures, which is beneficial for the processing of these materials in solid state applications. Selective substitution of the ligands provides for phosphorescent compounds that are suitable for use in a variety of OLED devices. The carbene complexes can also be used as materials in a hole blocking layer and/or an electron transport layer to improve device performance.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: April 13, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chun Lin, Bin Ma, Chuanjun Xia, Lichang Zeng, Alan Deangelis, Edward Barron
  • Patent number: 10968230
    Abstract: The present specification relates to a spiro compound and an organic electronic device including the same.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: April 6, 2021
    Inventors: Yongbum Cha, Sung Kil Hong, Jungbum Kim, Dong Uk Heo, Sung Jae Lee
  • Patent number: 10971689
    Abstract: The present invention relates to compounds of the formula (1) and (2) which are suitable for use in electro¬nic devices, in particular organic electroluminescent devices.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: April 6, 2021
    Assignee: Merck Patent GmbH
    Inventors: Philipp Stoessel, Dominik Joosten, Arne Buesing
  • Patent number: 10954218
    Abstract: The present specification relates to a carbazole derivative, a coating composition comprising the carbazole derivative, an organic light emitting device using the same, and a method for manufacturing the same.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: March 23, 2021
    Inventors: Jaesoon Bae, Jinseck Kim, Sungkyoung Kang, Jaechol Lee, Seokhee Yoon, Donggu Lee, Chung Whan Lee