For Radiation-sensitive Or Light-emitting Organic Solid-state Device With Potential Or Surface Barrier (epo) Patents (Class 257/E51.026)
  • Patent number: 11980044
    Abstract: An organic light emitting device including, in sequence, a first electrode, a first charge transport layer, a second charge transport layer in contact with the first charge transport layer, a light emitting layer in contact with the second charge transport layer, and a second electrode, wherein the first charge transport layer includes a first material and a second material, the second charge transport layer includes the second material and a third material, and the light emitting layer includes the third material and a fourth material.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: May 7, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Naoki Yamada, Satoru Shiobara, Itaru Takaya, Jun Kamatani
  • Patent number: 11974447
    Abstract: A novel light-emitting device is provided. A light-emitting device with high emission efficiency is provided. A light-emitting device with a long lifetime is provided. A light-emitting device with low driving voltage is provided. The light-emitting device includes an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes a hole-injection layer, a light-emitting layer, and an electron-transport layer. The hole-injection layer is positioned between the anode and the light-emitting layer. The electron-transport layer is positioned between the light-emitting layer and the cathode. The hole-injection layer contains a first substance and a second substance. The first substance is an organic compound which has a hole-transport property and a HOMO level higher than or equal to ?5.7 eV and lower than or equal to ?5.4 eV. The second substance exhibits an electron-accepting property with respect to the first substance.
    Type: Grant
    Filed: October 26, 2022
    Date of Patent: April 30, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Hiromi Seo, Kunihiko Suzuki, Kanta Abe, Yuji Iwaki, Naoaki Hashimoto, Tsunenori Suzuki
  • Patent number: 11974446
    Abstract: Disclosed are a white organic light emitting element, which may uniformize the color coordinates of white regardless of a change in current density by changing the configuration of different kinds of light emitting layers contacting each other, and a display device using the same.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: April 30, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Wook Song, Eun-Jung Park, Chun-Ki Kim, Se-Ung Kim
  • Patent number: 11968890
    Abstract: An organic light-emitting device having low-driving voltage, improved efficiency, and long lifespan includes: a first electrode; a second electrode facing the first electrode; a first layer between the first electrode and the second electrode, the first layer including a first compound; a second layer between the first layer and the second electrode, the second layer including a second compound; and a third layer between the second layer and the second electrode, the third layer including a third compound; wherein the first compound does not include a nitrogen-containing heterocyclic group comprising *?N—*? as a ring forming moiety, and wherein the first compound, the second compound, and the third compound each independently include at least one group selected from groups represented by Formulae A to C:
    Type: Grant
    Filed: March 16, 2023
    Date of Patent: April 23, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seulong Kim, Younsun Kim, Dongwoo Shin, Jungsub Lee, Naoyuki Ito, Jino Lim
  • Patent number: 11968850
    Abstract: A reliable light-emitting element with low driving voltage is provided. The light-emitting element includes an electron-injection layer between a cathode and a light-emitting layer. The electron-injection layer is a mixed film of a transition metal and an organic compound having an unshared electron pair. An atom of the transition metal and the organic compound form SOMO.
    Type: Grant
    Filed: February 17, 2023
    Date of Patent: April 23, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Nobuharu Ohsawa, Satoshi Seo
  • Patent number: 11958998
    Abstract: A composition including a plurality of quantum dots; a binder polymer; a thiol compound having at least two thiol groups; a polyvalent metal compound; a polymerizable monomer having a carbon-carbon double bond; a photoinitiator; and a solvent.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: April 16, 2024
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG DISPLAY CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Ha Il Kwon, Tae Gon Kim, Shang Hyeun Park, Eun Joo Jang, Shin Ae Jun, Garam Park
  • Patent number: 11956980
    Abstract: Discussed is an organic light emitting device in which a light emitting layer includes a host and different kinds of dopants, the fluorescent dopant is formed of a material having energy level properties facilitating thermally activated delayed fluorescence (TADF), and thus energy is concentratedly transferred to the fluorescent dopant so as to increase luminous efficacy of a single color.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: April 9, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Gyeong-Woo Kim, Hong-Seok Choi, Seung-Ryong Joung, Jun-Ho Lee, Yoon-Deok Han, Hee-Su Byeon
  • Patent number: 11943943
    Abstract: A detection device includes a substrate, a plurality of detection electrodes arranged in a detection area of the substrate, an organic semiconductor layer that covers the detection electrodes, and a counter electrode provided above the organic semiconductor layer. The organic semiconductor layer includes at least either of a first p-type semiconductor layer and a first n-type semiconductor layer, and an active layer. The active layer is provided in each overlapping area overlapping a corresponding one of the detection electrodes, and has a structure in which a p-type semiconductor area and an n-type semiconductor area are mixed and coexist. The first p-type semiconductor layer or the first n-type semiconductor layer is provided in a non-overlapping area not overlapping the detection electrode, and is provided between the adjacent active layers.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: March 26, 2024
    Assignee: Japan Display Inc.
    Inventor: Yasushi Kawata
  • Patent number: 11943958
    Abstract: A display panel according to one embodiment of the disclosure includes: a flexible substrate; a plurality of self-luminescent elements; a plurality of TFT circuits provided between the flexible substrate and the plurality of self-luminescent elements; a first inorganic film covering each of the TFT circuits; a second inorganic film covering each of the self-luminescent elements; and a resin layer covering the second inorganic film and covering at least a portion of the first inorganic film in contact with an end portion of the second inorganic film. The first inorganic film is provided between the plurality of TFT circuits and the plurality of self-luminescent elements, and has a step portion. The step portion is a thinned portion of the first inorganic film opposed to an end portion of the flexible substrate.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: March 26, 2024
    Assignee: JOLED INC.
    Inventors: Yuichiro Ishiyama, Takahiro Seki
  • Patent number: 11943946
    Abstract: Disclosed are a white organic light emitting element, which may uniformize the color coordinates of white regardless of a change in current density by changing the configuration of different kinds of light emitting layers contacting each other, and a display device using the same.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: March 26, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Wook Song, Eun-Jung Park, Chun-Ki Kim, Se-Ung Kim
  • Patent number: 11917906
    Abstract: The invention relates to compounds that can be used in an organic electronic device as an active compound, in particular for use in electronic devices. The invention further relates to a process for preparing the compounds according to the invention, and to electronic devices comprising the same.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: February 27, 2024
    Assignee: Merck Patent GmbH
    Inventor: Philipp Stoessel
  • Patent number: 11839133
    Abstract: An organic light-emitting diode (OLED) display includes an array of OLED pixels and an array of organic photodetector (OPD) pixels. An OLED pixel in the array of OLED pixels includes an OLED hole transport layer (HTL), an OLED electron transport layer (ETL), and an emissive layer positioned between the OLED HTL and the OLED ETL. An OPD pixel in the array of OPD pixels includes the OLED HTL, the OLED ETL, and an electron donor material positioned between the OLED HTL and the OLED ETL, wherein the OLED ETL functions as an electron acceptor material for the OPD pixel. In other embodiments, the OPD pixel may be configured differently.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: December 5, 2023
    Assignee: Apple Inc.
    Inventors: Markus Einzinger, Martijn Kuik, Mohammad Yeke Yazdandoost, Niva A. Ran
  • Patent number: 11839139
    Abstract: A compound is disclosed that has a metal coordination complex structure having at least two ligands coordinated to the metal; wherein the compound has a first substituent R1 at one of the ligands' periphery; wherein a first distance is defined as the distance between the metal and one of the atoms in R1 where that atom is the farthest away from the metal among the atoms in R1; wherein the first distance is also longer than any other atom-to-metal distance between the metal and any other atoms in the compound; and wherein when a sphere having a radius r is defined whose center is at the metal and the radius r is the smallest radius that will allow the sphere to enclose all atoms in the compound that are not part of R1, the first distance is longer than the radius r by at least 2.9 ?.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: December 5, 2023
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Eric A. Margulies, Zhiqiang Ji, Jui-Yi Tsai, Chun Lin, Alexey Borisovich Dyatkin, Mingjuan Su, Bin Ma, Michael S Weaver, Julia J. Brown, Lichang Zeng, Walter Yeager, Alan Deangelis, Chuanjun Xia
  • Patent number: 11826316
    Abstract: Pharmaceutical compositions comprising 3-aminoisoxazolopyridine compounds of the Formula I having IDO1 and/or TDO inhibitory activity are described, where W is CR1, N or N-oxide; X is CR2, N or N-oxide; Y is CR3, N or N-oxide; Z is CR4, N or N-oxide; and at least one of W, X, Y, and Z is N or N-oxide; and R9 and R10 are as defined. Also described are methods of using such compounds in the treatment of various conditions, such as cancer.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: November 28, 2023
    Assignee: AUCKLAND UNISERVICES LIMITED
    Inventors: Brian Desmond Palmer, Lai Ming Ching, Swarnalatha Akuratiya Gamage
  • Patent number: 11832465
    Abstract: Emission efficiency of a light-emitting element is improved. The light-emitting element has a pair of electrodes and an EL layer between the pair of electrodes. The EL layer includes a first light-emitting layer and a second light-emitting layer. The first light-emitting layer includes a fluorescent material and a host material. The second light-emitting layer includes a phosphorescent material, a first organic compound, and a second organic compound. An emission spectrum of the second light-emitting layer has a peak in a yellow wavelength region. The first organic compound and the second organic compound form an exciplex.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: November 28, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Takahiro Ishisone, Nobuharu Ohsawa, Yusuke Nonaka, Toshiki Sasaki
  • Patent number: 11825718
    Abstract: A multicolor light-emitting element that utilizes fluorescence and phosphorescence and is advantageous for practical application is provided. The light-emitting element has a stacked-layer structure of a first light-emitting layer containing a host material and a fluorescent substance and a second light-emitting layer containing two kinds of organic compounds and a substance that can convert triplet excitation energy into luminescence. Note that light emitted from the first light-emitting layer has an emission peak on the shorter wavelength side than light emitted from the second light-emitting layer.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: November 21, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takahiro Ishisone, Satoshi Seo, Yusuke Nonaka, Nobuharu Ohsawa
  • Patent number: 11825735
    Abstract: A compound of Formula I is disclosed.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: November 21, 2023
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventor: Hsiao-Fan Chen
  • Patent number: 11814403
    Abstract: Tetradentate platinum complexes comprising an imidazole/benzimidazole carbene having a structure of Formula I is disclosed. In Formula I, M is Pd or Pt. These platinum carbenes with the specific substituents disclosed herein are novel and provides phosphorescent emissive compounds that exhibit physical properties that can be tuned, such as sublimation temperature, emission color, and device stability.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: November 14, 2023
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Hsiao-Fan Chen, Tyler Fleetham, Peter Wolohan, Jason Brooks, Pierre-Luc T. Boudreault, Charles J. Stanton, III, Olexandr Tretyak, Raghupathi Neelarapu, Katarina Rohlfing, Douglas Williams
  • Patent number: 11812626
    Abstract: Provided is a light-emitting element with high external quantum efficiency, or a light-emitting element with a long lifetime. The light-emitting element includes, between a pair of electrodes, a light-emitting layer including a guest material and a host material, in which an emission spectrum of the host material overlaps with an absorption spectrum of the guest material, and phosphorescence is emitted by conversion of an excitation energy of the host material into an excitation energy of the guest material. By using the overlap between the emission spectrum of the host material and the absorption spectrum of the guest material, the energy smoothly transfers from the host material to the guest material, so that the energy transfer efficiency of the light-emitting element is high. Accordingly, a light-emitting element with high external quantum efficiency can be achieved.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: November 7, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoko Shitagaki, Satoshi Seo, Nobuharu Ohsawa, Hideko Inoue, Masahiro Takahashi, Kunihiko Suzuki
  • Patent number: 11795155
    Abstract: A compound represented by the following formula (1): The R1 to R9, L1 to L3, and Ar1 to Ar2 in the formula (1) are as defined in the description. An organic electroluminescence device contains the compound, and an electronic instrument includes the organic electroluminescence device.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: October 24, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yusuke Takahashi, Tasuku Haketa, Shota Tanaka
  • Patent number: 11778844
    Abstract: A light emitting element includes: a first electrode, a second electrode facing the first electrode, a first light emitting layer between the first electrode and the second electrode to emit a first light, a second light emitting layer between the first light emitting layer and the second electrode to emit a second light, and an intermediate layer including a host material between the first light emitting layer and the second light emitting layer and, wherein the intermediate layer has a thickness of from about 90 nm to 170 nm.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: October 3, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sungwook Kim, Kyungsik Kim, SeulOng Kim, Tsuyoshi Naijo, Sung-Soo Bae, Dongchan Lee, Hyein Jeong, Hyewon Choi, Seung-Jin Chu, Jaeweon Hur
  • Patent number: 11770969
    Abstract: To provide a light-emitting element with high emission efficiency and low driving voltage. The light-emitting element includes a guest material and a host material. A LUMO level of the host material is higher than a LUMO level of the host material, and a HOMO level of the guest material is lower than a HOMO level of the host material. The guest material has a function of converting triplet excitation energy into light emission. The difference between a singlet excitation energy level and a triplet excitation energy level of the host material is greater than 0 eV and less than or equal to 0.2 eV. The energy difference between the LUMO level and the HOMO level of the host material is larger than or equal to light emission energy of the guest material.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: September 26, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeyoshi Watabe, Satoshi Seo, Satomi Mitsumori
  • Patent number: 11756983
    Abstract: Light-emitting diodes having radiative recombination regions with deep sub-micron dimensions are described. The LEDs can be fabricated from indirect bandgap semiconductors and operated under forward bias conditions to produce intense light output from the indirect bandgap material. The light output per unit emission area can be over 500 W cm?2, exceeding the performance of even high brightness gallium nitride LEDs.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: September 12, 2023
    Assignee: Massachusetts Institute of Technology
    Inventors: Rajeev J. Ram, Jaehwan Kim, Jin Xue, Zheng Li
  • Patent number: 11751437
    Abstract: A display device, such an organic light emitting display device is disclosed. The display device includes an insulating film including a concave portion in an area of at least one subpixel, a first electrode on a side portion of the concave portion and on the concave portion in an area of the subpixel, an organic layer overlapping the concave portion and on the first electrode. An organic layer disposed in the at least one blue subpixel may include at least one of a first light emitting dopant with a maximum emission wavelength of 457 nm or less, a second light emitting dopant with a full width at half maximum (FWHM) of 30 nm or less, and/or a third light emitting dopant with the maximum emission wavelength of 457 nm or less and the full width at half maximum of 30 nm or less. Thus, a display device with enhanced light extraction efficiency is provided.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: September 5, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Mi-Na Kim, Namseok Yoo, JungSun Beak, Seongjoo Lee, Sunmi Lee
  • 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: 11751411
    Abstract: Provided are a solar cell, a manufacturing method thereof and a photovoltaic module. The solar cell includes a semiconductor substrate, the semiconductor substrate having a first surface and a second surface opposite to each other; a first passivation layer and a first electrode layer that are located on the first surface of the semiconductor substrate; and a second passivation layer and a second electrode layer that are located on the second surface of the semiconductor substrate. A donor material film layer is provided between the first passivation layer and the first surface of the semiconductor substrate, and/or an acceptor material film layer is provided between the second passivation layer and the second surface of the semiconductor substrate.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: September 5, 2023
    Assignees: SHANGHAI JINKO GREEN ENERGY ENTERPRISE MANAGEMENT CO., LTD., ZHEJIANG JINKO SOLAR CO., LTD.
    Inventors: Qiankun Hou, Jingsheng Jin, Dong Wang, Nannan Yang
  • Patent number: 11730054
    Abstract: A compound that is capable of achieving an organic EL device that has a high external quantum efficiency and a long lifetime is to be provided, and a compound represented by the following formula (1) is used (wherein in the formula, R11 to R17, R21 to R28, R31 to R38, R41 to R45, R51 to R55, R61 to R64, and L1 are defined in the description).
    Type: Grant
    Filed: September 6, 2022
    Date of Patent: August 15, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hirokatsu Ito, Tasuku Haketa, Yu Kudo
  • Patent number: 11678573
    Abstract: An organic compound having a fused heteroaromatic moiety as an electron donor and a tri-pyrimidine moiety sharing an arylene group as an electron acceptor bonded to the fused heteroaromatic moiety, an organic light-emitting diode and an organic light-emitting device including the organic compound are disclosed, where the organic compound leads to enhanced luminous efficiency and lower driving voltages.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: June 13, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: In-Ae Shin, Suk-Young Bae, Joong-Hwan Yang, Jun-Yun Kim
  • 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: 11639363
    Abstract: Provided are compounds having a first ligand LA of Formula I where, R and RA each represents mono to the maximum allowable substitutions, or no substitution; Z1 to Z4 are each independently C or N; at least two adjacent Z1 to Z4 are C and the corresponding R groups attached to them form a structure of Formula II
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: May 2, 2023
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Zhiqiang Ji, Pierre-Luc T. Boudreault
  • Patent number: 11631817
    Abstract: ABSTRACT An organic electroluminescence device includes an anode, a cathode, and at least one organic layer provided between the anode and the cathode, in which the at least one organic layer contains a first compound represented by a formula (1) and a second compound represented by a formula (2). In the formula (1), A1 is a substituted or unsubstituted nitrogen-containing heterocyclic group having 5 to 24 ring atoms, and L1 is a single bond, a substituted or unsubstituted divalent aryl group having 6 to 24 ring carbon atoms or a substituted or unsubstituted divalent heterocyclic group having 5 to 24 ring atoms. In the formula (2), X1 is an oxygen atom or a sulfur atom.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: April 18, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahiro Kawamura, Tetsuya Masuda, Kazuki Nishimura
  • Patent number: 11569456
    Abstract: An organic electroluminescence device includes: an anode; an emitting layer; and a cathode, the emitting layer containing a first material, a second material and a third material, the first material being a fluorescent material, the second material being a delayed fluorescent material, the third material having a singlet energy larger than a singlet energy of the second material.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: January 31, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Toshinari Ogiwara, Kei Yoshida, Ryohei Hashimoto, Yumiko Mizuki
  • Patent number: 11563196
    Abstract: A foldable organic light emitting diode (OLED) display panel and an OLED display screen having the fordable OLED display panel are provided. The foldable OLED display panel is provided with an effective display area and a non-display area. The effective display area has a folding region, a first display area and a second display area. The first display area and the second display area are disposed adjacent two lateral sides of the folding region, respectively. The foldable OLED display panel has a first spacer, a second spacer, and an encapsulation layer having a first organic layer and a first inorganic layer. The first organic layer is coated within the folding region and restricted to the folding region by the first spacer and the second spacer. The first inorganic layer is disposed on the first organic layer and completely covers the effective display area.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: January 24, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Bo Yan
  • Patent number: 11563066
    Abstract: An organic light emitting display (OLED) device includes a substrate, a semiconductor element on the substrate, a planarization layer on the semiconductor, and a light emitting structure on the planarization layer. The planarization layer includes a contact hole exposing a portion of the semiconductor and a plurality of grooves surrounding the contact hole. The light emitting structure is electrically connected to the semiconductor element via the contact hole.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: January 24, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Eonjoo Lee, Jin-Whan Jung, Hyoeng-Ki Kim, Junhyuk Woo
  • Patent number: 11555146
    Abstract: A fluorescent infrared emitting composition comprising a mixture of a first material and a second material wherein the first material is a fluorescent infrared material and the second material is a fluorescent material having a higher photoluminescent quantum yield (PLQY) and shorter peak wavelength than the infrared emitting material. The composition may be used as the light-emitting layer of an organic light-emitting device.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: January 17, 2023
    Assignee: Sumitomo Chemical Company Limited
    Inventors: Kiran Kamtekar, Daniel Tobjork
  • Patent number: 11545629
    Abstract: Disclosed herein is an organic light-emitting diode capable of operating at a low voltage with high efficiency. It comprises: a first electrode; a second electrode facing the first electrode; and a light-emitting layer interposed between the first electrode and the second electrode, wherein the light-emitting layer comprises at least one of the amine compounds represented by the following Chemical Formula A or B, and the compound represented by the following Chemical Formula C. Chemical Formulas A, B and C are as described in the Specification.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: January 3, 2023
    Assignee: SFC CO., LTD.
    Inventors: Sung-Wan Pyo, So Young Shim, Yun-Ah Lee, Se Jin Yu
  • Patent number: 11522154
    Abstract: A flexible display apparatus includes a first functional layer, a second functional layer above the first functional layer, a third functional layer above the second functional layer, a first adhesive layer between the first functional layer and the second functional layer, and having a first recovery rate, and a second adhesive layer between the second functional layer and the third functional layer, and having a second recovery rate that is lower than the first recovery rate.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: December 6, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yongkwan Kim, Sangwol Lee, Taehyeog Jung, Dongwoo Seo, Ahram Lee, Jangdoo Lee
  • Patent number: 11512076
    Abstract: Provided are a compound of 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, comprising a compound of Formula 1 in the organic material layer; and an electronic device comprising the element, which has lowered driving voltage and increased luminous efficiency and life time.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: November 29, 2022
    Assignee: DUK SAN NEOLUX CO., LTD.
    Inventors: Jong Gwang Park, Yun Suk Lee, Jung Hwan Park, Jung Wook Lee, Sun Hee Lee
  • Patent number: 11489133
    Abstract: A novel light-emitting device is provided. A light-emitting device with high emission efficiency is provided. A light-emitting device with along lifetime is provided. A light-emitting device with low driving voltage is provided. The light-emitting device includes an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes a hole-injection layer, a light-emitting layer, and an electron-transport layer. The hole-injection layer is positioned between the anode and the light-emitting layer. The electron-transport layer is positioned between the light-emitting layer and the cathode. The hole-injection layer contains a first substance and a second substance. The first substance is an organic compound which has a hole-transport property and a HOMO level higher than or equal to ?5.7 eV and lower than or equal to ?5.4 eV. The second substance exhibits an electron-accepting property with respect to the first substance.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: November 1, 2022
    Inventors: Satoshi Seo, Hiromi Seo, Kunihiko Suzuki, Kanta Abe, Yuji Iwaki, Naoaki Hashimoto, Tsunenori Suzuki
  • Patent number: 11456424
    Abstract: A novel compound is provided. A light-emitting element with high emission efficiency and a long lifetime is provided. The compound is an organic compound that includes a benzofuro[3,2-d]pyrimidine or benzothieno[3,2-d]pyrimidine skeleton (General Formula (G0)). The 2-position of the benzofuro[3,2-d]pyrimidine or benzothieno[3,2-d]pyrimidine skeleton has a substituent and the 6- to 9-positions of the skeleton have at least one substituent. Any one of the substituents bonded to the 6- to 9-positions is bonded to the benzofuro[3,2-d]pyrimidine or benzothieno[3,2-d]pyrimidine skeleton via a phenylene group. A light-emitting element including the compound is provided.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: September 27, 2022
    Inventors: Tomoka Hara, Hideko Yoshizumi, Hiromitsu Kido, Satoshi Seo
  • Patent number: 11411195
    Abstract: The present invention is directed to an electroluminescent device comprising: —at least one node layer, —at least one cathode layer, —at least one light emitting layer, —at least one first hole transport layer, —at least a first electron transport layer; wherein for increasing power efficiency the compositions of the light emitting layer, the hole transport layer and the electron transport layer are matched to one another, wherein—the at least one light emitting layer is arranged between the anode layer and the cathode layer, wherein the at least one light emitting layer comprises: —at least one fluorescent emitter compound embedded in at least one polar emitter host compound, wherein—the at least one polar emitter host compound has at least three aromatic rings, which are independently selected from carbocyclic rings and heterocyclic rings; —the at least one first hole transport layer is arranged between the anode layer and the light emitting layer, wherein the at least one first hole transport layer compris
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: August 9, 2022
    Assignee: Novaled GmbH
    Inventors: Vygintas Jankus, Domagoj Pavicic, Carsten Rothe
  • Patent number: 11374191
    Abstract: Provided are an OLED, display panel and display device. The OLED includes a first electrode, a second electrode, a light emitting layer and at least one blocking layer. The second electrode is arranged opposite to the first electrode. The light emitting layer is arranged between the first electrode and the second electrode. The blocking layer is arranged between the light emitting layer and the second electrode and/or between the light emitting layer and the first electrode. Each blocking layer of the at least one blocking layer comprises at least two blocking materials, electron mobility of at least one blocking material of the at least two blocking materials is lower than a first preset value, electron mobility of at least another blocking material of the at least two blocking materials is higher than a second preset value, and the first preset value is lower than the second preset value.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: June 28, 2022
    Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.
    Inventors: Weiwei Li, Lin He, Mengzhen Li, Jingwen Tian, Tiantian Li
  • Patent number: 9040172
    Abstract: The present invention describes novel indenofluorene derivatives which can preferably be employed as matrix materials for phosphorescent dopants or as electron-transport materials, in particular for use in the emission and/or charge-transport layer of electroluminescent devices. The invention furthermore relates to polymers which comprise these compounds as structural units and to a process for the preparation of the compounds according to the invention and to electronic devices which comprise same.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: May 26, 2015
    Assignee: Merck Patent GmbH
    Inventors: Amir Hossain Parham, Christof Pflumm, Teresa Mujica-Fernaud, Arne Buesing, Holger Heil
  • Patent number: 9040382
    Abstract: A semiconductor device includes a substrate formed of a first semiconductor material; two insulators on the substrate; and a semiconductor region having a portion between the two insulators and over the substrate. The semiconductor region has a bottom surface contacting the substrate and having sloped sidewalls. The semiconductor region is formed of a second semiconductor material different from the first semiconductor material.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: May 26, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jing-Cheng Lin, Chen-Hua Yu
  • Patent number: 9040176
    Abstract: An organic light-emitting device including: a substrate; a display unit on the substrate; and an encapsulation layer covering the display unit, the encapsulation layer having an alternating stack structure of an organic layer and an inorganic layer, and the organic layer including a polymer polymerized from monomers of Formula 1 and Formula 2:
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 26, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nam-Jin Kim, Chul-Hwan Park
  • Patent number: 9040175
    Abstract: The present invention relates to an electronic device comprising at least one organic semiconducting material according to the following formula (I): wherein R1-4 are independently selected from H, halogen, CN, substituted or unsubstituted C1-C20-alkyl or heteroalkyl, C6-C20-aryl or C5-C20-heteroaryl, C1-C20-alkoxy or C6-C20-aryloxy, Ar is selected from substituted or unsubstituted C6-C20-aryl or C5-C20-heteroaryl, and R5 is selected from substituted or unsubstituted C6-C20-aryl or C5-C20-heteroaryl, H, F or formula (II).
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: May 26, 2015
    Assignee: NOVALED AG
    Inventors: Omrane Fadhel, Ramona Pretsch
  • Patent number: 9035545
    Abstract: Provided is an organic light emitting diode including an organic light-emitting part including a first electrode, an organic material layer having a light-emitting layer, and a second electrode, and an encapsulating layer included on an entire top surface of the organic light-emitting part. Here, the encapsulating layer has a structure in which at least two of a water barrier film, a glass cap, a metal foil and a conductive film are stacked. Accordingly, the diode may have excellent water and oxygen barrier effects, and deterioration of the diode or running failure may be prevented.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: May 19, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Kwang Jin Jeong, Min Soo Kang, Jong Seok Kim, Hyun Jee Yoo, Yoon Gyung Cho
  • Patent number: 9034485
    Abstract: The present invention relates to compounds of the formula (1) and to the use thereof in organic electronic devices, and to organic electronic devices which comprise compounds of the formula (1), preferably as hole-transport materials and/or as emitting materials.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: May 19, 2015
    Assignee: Merck Patent GmbH
    Inventors: Arne Buesing, Holger Heil, Philipp Stoessel, Amir Hossain Parham, Rocco Fortte, Jonas Valentin Kroeber
  • Patent number: 9017829
    Abstract: The present invention relates to a material for an organic electroluminescent device, including a phenanthrocarbazole-based compound having a specific structure, and an organic electroluminescent device including the same. More specifically, the phenanthrocarbazole-based compound is applied as a material for a phosphorescent and fluorescent organic electroluminescent device, thereby providing an organic light emitting device with improved light emitting efficiency, luminance, thermal stability, driving voltage, lifetime and the like.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: April 28, 2015
    Assignee: Doosan Corporation
    Inventors: Jin-Seok Hong, Eun Jung Lee, Shin Han Kim, Kyoung-Soo Kim
  • Patent number: 9017827
    Abstract: A compound for an organic optoelectronic device, an organic light emitting diode, and a display device, the compound including sequentially combined substituents represented by the following Chemical Formulae 1 to 3:
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: April 28, 2015
    Assignee: Cheil Industries, Inc.
    Inventors: Sung-Hyun Jung, Hyung-Sun Kim, Ho-Jae Lee, Eun-Sun Yu, Mi-Young Chae, Ja-Hyun Kim