Electroluminescent Patents (Class 428/917)
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Patent number: 12245504Abstract: Provided are novel organic compounds having a structure of Formula I: Also provided are formulations having these organic compounds. Further provided are OLEDs and related consumer products that utilize these organic compounds.Type: GrantFiled: October 14, 2021Date of Patent: March 4, 2025Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Tyler Fleetham, Morgan C. Macinnis, Noah Horwitz, Jerald Feldman, Hsiao-Fan Chen
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Patent number: 12232392Abstract: The present disclosure relates to a display apparatus using, for example, a micro light emitting diode (LED), and a manufacturing method therefor, wherein the apparatus and method can be applied to a technical field related to display apparatuses.Type: GrantFiled: December 3, 2019Date of Patent: February 18, 2025Assignee: LG ELECTRONICS INC.Inventor: Jaehyuk Lee
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Patent number: 12193294Abstract: A multi-panel organic light emitting display device is disclosed that includes a plurality of display panels coupled to each other. Each of the plurality of display panels includes: a substrate including an active area and a non-active area; and a display unit including an organic light emitting element on the substrate. Each of the plurality of display panels also includes: a plurality of signal lines disposed on the substrate and electrically connected to the display unit; and a plurality of link lines disposed under the substrate. Each of the plurality of display panels further includes a plurality of side lines connecting the plurality of signal lines and the plurality of link lines. Each of the plurality of display panels also includes a driving circuit electrically connected to the plurality of link lines.Type: GrantFiled: March 7, 2023Date of Patent: January 7, 2025Assignee: LG Display Co., Ltd.Inventors: OhJong Kwon, ChangHo Oh, HyeonWoo Lee, YoungJun Hong
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Patent number: 12193323Abstract: An organic compound represented by formula [1] or [2]: where X1 to X18 and X21 to X38 are each independently selected from a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an amino group, an aryl group, a heterocyclic group, an aryloxy group, a heteroaryloxy group, a silyl group, and a cyano group, in which at least one of X1 to X8 and at least one of X21 to X28 are substituted or unsubstituted amino groups; and each Y is oxygen, sulfur, selenium, tellurium, or a CR1CR2 group and may be the same or different, in which R1 and R2 are each independently selected from a hydrogen atom, an alkyl group, an alkoxy group, an amino group, an aryl group, a heterocyclic group, an aryloxy group, a heteroaryloxy group, a silyl group, or a cyano group.Type: GrantFiled: October 27, 2021Date of Patent: January 7, 2025Assignee: Canon Kabushiki KaishaInventors: Naoki Yamada, Jun Kamatani, Yosuke Nishide, Hirokazu Miyashita
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Patent number: 12180131Abstract: An organic molecule having a structure of formula I: wherein T and V is independently from another selected from the group consisting of R1 and R2; and R1 has a structure of formula II: which is bonded via the position marked by the dotted line, wherein Ar1 is C6-C60-aryl.Type: GrantFiled: March 5, 2020Date of Patent: December 31, 2024Assignee: Samsung Display Co., Ltd.Inventors: Qiang Wang, Pascal Brandt
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Patent number: 12178116Abstract: An organometallic compound represented by Formula 1: M(L1)n1(L2)n2??Formula 1 In Formula 1, M is a transition metal; L1 is a ligand represented by Formula 2 as disclosed herein; L2 is a monodentate ligand, a bidentate ligand, a tridentate ligand, or a tetradentate ligand; n1 is 1, 2, or 3, wherein, when n1 is 2 or greater, ligands L1 are identical to or different from each other; and n2 is 0, 1, 2, 3, or 4, wherein, when n2 is 2 or greater, ligands L2 are identical to or different from each other.Type: GrantFiled: September 30, 2020Date of Patent: December 24, 2024Assignees: SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Kum Hee Lee, Seungyeon Kwak, Aram Jeon, Whail Choi, Kyuyoung Hwang, Yoonhyun Kwak, Sangdong Kim, Won-joon Son, Byoungki Choi, Hyeonho Choi, Wooyoun Kim
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Patent number: 12171137Abstract: A compound comprising a ligand LA of Formula I coordinated to a metal M as represented by the dotted lines wherein ring A is a 5-membered or 6-membered carbocyclic or heterocyclic ring, and ring B is a multicyclic ring system comprising four to eight fused 5-membered or 6-membered, carbocyclic or heterocyclic rings; wherein the ring B includes a structure of Formula II wherein ring C is a 5-membered or 6-membered carbocyclic or heterocyclic ring, and the dotted lines of Formula II represent fusion of the structure of Formula II as part of the multicyclic ring system of ring B; T1, T2, and T3 are independently selected from N or C; and L is a linker L2-L1 with L2 and L1 independently selected from the group consisting of O, S, NRN, CR1R2, CR3R4, SiR1R2, and SiR3R4; wherein at least one of L1 or L2 is CR1CR2 or SiR1R2; and the metal M is selected from the group consisting of Ir, Rh, Re, Ru, Os, Pt, Pd, Au, and Cu.Type: GrantFiled: August 14, 2019Date of Patent: December 17, 2024Inventors: Zhiqiang Ji, Suman Layek, Alexey Borisovich Dyatkin, Jui-Yi Tsai, Pierre-Luc T. Boudreault
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Patent number: 12167698Abstract: The present invention relates to compositions obtained by mixing specific electroactive fluoro-terpolymers and specific electroactive fluorinated copolymers. The invention also concerns liquid formulations (inks) that can be used through conventional processing technologies for printed electronics and microelectronics in a safe environment, based on these compositions. Another aspect of this invention are the films manufactured using these formulations, and the devices comprising at least one layer of these films.Type: GrantFiled: July 19, 2018Date of Patent: December 10, 2024Assignee: ARKEMA FRANCEInventors: Fabrice Domingues Dos Santos, Seung Tae Choi, Hung Viet Tran
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Patent number: 12161003Abstract: Discussed is an organic light emitting display device including an anode, a first emission part on the anode, and including a first hole transfer layer, a first emission layer, and a first electron transfer layer, a second emission part on the first emission part, and including a second hole transfer layer, a second emission layer, and a second electron transfer layer, and a cathode on the second emission part. At least one among the first emission part and the second emission part can include an emission control layer having an absolute value of a HOMO energy level which is larger than an absolute value of a HOMO energy level of the first hole transfer layer or the second hole transfer layer. A hole mobility of the emission control layer is 1.0×10?1 cm2/Vs to 1.0×10?2 cm2/Vs lower than a hole mobility of the first hole transfer layer or the second hole transfer layer.Type: GrantFiled: May 24, 2023Date of Patent: December 3, 2024Assignee: LG DISPLAY CO., LTD.Inventor: EunJung Park
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Patent number: 12156464Abstract: 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: GrantFiled: June 17, 2019Date of Patent: November 26, 2024Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Chuanjun Xia, Chun Lin, Ting-Chih Wang
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Patent number: 12150321Abstract: An organic electronic device comprises a substrate, at least one morphological stabilizing layer positioned over the substrate, the morphological stabilizing layer comprising a material having a Tg greater than 50° C., and at least one organic layer positioned in direct contact with the morphological stabilizing layer. A method of making an organic electronic device is also disclosed.Type: GrantFiled: November 17, 2021Date of Patent: November 19, 2024Inventors: Jongchan Kim, Stephen R. Forrest
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Patent number: 12144244Abstract: Provided are compounds of Formula I that are useful as emitters in OLEDs.Type: GrantFiled: August 7, 2020Date of Patent: November 12, 2024Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Hsiao-Fan Chen, Tyler Fleetham, Rasha Hamze
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Patent number: 12133400Abstract: An organic light-emitting device includes an anode electrode and a cathode electrode that are arranged facing each other; a light-emitting layer arranged between the anode electrode and the cathode electrode; and a hole transport layer arranged between the anode electrode and the light-emitting layer, and including one or more layers. A layer, of the one or more layers of the hole transport layer, contacting the light-emitting layer has a HOMO energy level 12bH that is higher than a HOMO energy level 13H of the light-emitting layer. A difference ?E1 between the HOMO energy level 12bH of the layer contacting the light-emitting layer of the hole transport layer and the HOMO energy level 13H of the light-emitting layer is 0.32 eV or less.Type: GrantFiled: July 26, 2021Date of Patent: October 29, 2024Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.Inventors: Keita Hamada, Hiromu Hanashima, Shigeru Mori
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Patent number: 12132156Abstract: A display device includes a flexible substrate, a bonding pad, a light-emitting diode, an encapsulant, and a support structure. The bonding pad and the light-emitting diode are located on the flexible substrate. The encapsulant covers the light-emitting diode. The support structure is laterally located between the light-emitting diode and the bonding pad. The support structure has an inclined surface, and a thickness of the support structure close to the light-emitting diode is greater than the thickness of the support structure close to the bonding pad.Type: GrantFiled: October 27, 2021Date of Patent: October 29, 2024Assignee: Au Optronics CorporationInventors: Cheng-He Ruan, Jian-Jhou Tseng, Chih-Yuan Hou
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Patent number: 12127471Abstract: A light-emitting element which includes a plurality of light-emitting layers between a pair of electrodes and has low driving voltage and high emission efficiency is provided. A light-emitting element including first to third light-emitting layers between a cathode and an anode is provided. The first light-emitting layer includes a first phosphorescent material and a first electron-transport material; the second light-emitting layer includes a second phosphorescent material and a second electron-transport material; the third light-emitting layer includes a fluorescent material and a third electron-transport material; the first to third light-emitting elements are provided in contact with an electron-transport layer positioned on a cathode side; and a triplet excitation energy level of a material included in the electron-transport layer is lower than triplet excitation energy levels of the first electron-transport material and the second electron-transport material.Type: GrantFiled: June 29, 2023Date of Patent: October 22, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Tsunenori Suzuki, Naoaki Hashimoto, Eriko Saijo, Satoshi Seo
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Patent number: 12127418Abstract: A light-emitting device, an electronic device, and a display device each consume less power are provided. The light-emitting device includes a first light-emitting element, a second light-emitting element, and a third light-emitting element that share an EL layer. The EL layer includes a layer containing a light-emitting material that emits blue fluorescence and a layer containing a light-emitting material that emits yellow or green phosphorescence. Light emitted from the second light-emitting element enters a color filter layer or a second color conversion layer, and light emitted from the third light-emitting element enters a first color conversion layer.Type: GrantFiled: December 20, 2022Date of Patent: October 22, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Seo, Nobuharu Ohsawa
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Patent number: 12116377Abstract: The present disclosure provides an organometallic compound below and an organic light emitting diode and an organic light emitting display device including the organometallic compound.Type: GrantFiled: October 28, 2020Date of Patent: October 15, 2024Assignee: LG Display Co., Ltd.Inventors: Hee-Jun Park, Do-Han Kim, Hye-Seung Kang, Jae-Min Moon
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Patent number: 12116378Abstract: Described herein are transition metal complexes containing nickel(II), as the central metal atom, and tridentate and tetradentate ligands. The transition metal complexes also include an ancillary ligand with strong ?-donating properties. The ancillary ligand enhances the luminescence by increasing the chances of populating the emissive state. The transition metal complexes are emissive at room temperature and/or low temperature in various media, rendering them useful as light-emitting materials for OLEDs.Type: GrantFiled: December 9, 2019Date of Patent: October 15, 2024Assignee: THE UNIVERSITY OF HONG KONGInventors: Vivian Wing-Wah Yam, Yip-Sang Wong, Man-Chung Tang, Mei-Yee Chan
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Patent number: 12120907Abstract: An electroluminescent display apparatus includes a substrate, a plurality of light emitting elements disposed on a flexible substrate, and an encapsulating unit disposed on the plurality of light emitting elements. The encapsulating unit includes a first encapsulating layer, a second encapsulating layer, and a third encapsulating layer, and at least one of the first encapsulating layer, the second encapsulating layer, and the third encapsulating layer is patterned to have a plurality of patterns which are isolated and independent from each other.Type: GrantFiled: December 4, 2019Date of Patent: October 15, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Wonjin Choi, GeeSung Chae
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Patent number: 12108655Abstract: An organometallic compound represented by Formula 1 and an organic light-emitting device including the same. The substituents of Formula 1 are the same as described in the specification.Type: GrantFiled: May 12, 2021Date of Patent: October 1, 2024Assignee: Samsung Display Co., Ltd.Inventors: Hyunjung Lee, Soobyung Ko, Haejin Kim, Sujin Shin, Jaesung Lee, Junghoon Han
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Patent number: 12096682Abstract: An organic electroluminescence device and a monoamine compound for an organic electroluminescence device are provided. The monoamine compound is represented by Formula 1. In Formula 1, FR is a phenanthryl group which is substituted with one phenyl group.Type: GrantFiled: December 9, 2018Date of Patent: September 17, 2024Assignee: Samsung Display Co., Ltd.Inventors: Hideo Miyake, Masatsugu Ueno, Xiulan Jin, Ichinori Takada, Hiroaki Itoi, Takuya Uno
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Patent number: 12082432Abstract: The present disclosure provides a quantum dot light-emitting device, a preparing method and a display device. The quantum dot light-emitting device includes an anode, a hole transport layer, a quantum dot light-emitting layer, an electron transport layer and a cathode laminated one on another. The quantum dot light-emitting layer includes heterodimer quantum dots, the heterodimer quantum dots include first quantum dots carrying a positive charge and second quantum dots carrying a negative charge, and each first quantum dot and each second quantum dot have a same energy gap and different positions of conduction band and valence band.Type: GrantFiled: February 25, 2021Date of Patent: September 3, 2024Assignee: BOE Technology Group Co., Ltd.Inventor: Jingwen Feng
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Patent number: 12054565Abstract: The present invention provides a novel polymer and an organic light emitting device including the same.Type: GrantFiled: July 31, 2019Date of Patent: August 6, 2024Assignee: LG Chem, Ltd.Inventors: Esder Kang, Jaesoon Bae, Jaechol Lee, Jiyeon Shin, Beomgoo Kang, Minseob Seo, Hyungil Park
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Patent number: 12052904Abstract: An organic EL device includes a counter electrode, a first reflection layer provided so as to be separate from the counter electrode by a first optical distance, a first pixel electrode provided between the counter electrode and the first reflection layer, a light emitting layer provided between the counter electrode and the first pixel electrode, an optical distance adjustment layer provided between the first pixel electrode and the first reflection layer, and a first relay electrode provided between the first pixel electrode and the first reflection layer, and configured to electrically couple the first pixel electrode and the first reflection layer, wherein the optical distance adjustment layer is provided so as to be separate from the first relay electrode.Type: GrantFiled: January 27, 2022Date of Patent: July 30, 2024Assignee: SEIKO EPSON CORPORATIONInventor: Takehiko Kubota
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Patent number: 12041834Abstract: A display device includes: a substrate, a plurality of pixel islands, and a plurality of traces. The substrate is stretchable. The plurality of pixel islands are disposed over the substrate. The plurality of traces respectively connect two adjacent pixel islands of the plurality of pixel islands, and each of the traces extends in a first main direction and then extends in a second main direction through a turning angle.Type: GrantFiled: September 28, 2021Date of Patent: July 16, 2024Assignee: AU OPTRONICS CORPORATIONInventors: Zih-Shuo Huang, Tsung-Ying Ke
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Patent number: 12035596Abstract: Embodiments of the disclosed subject matter provide a device having a substrate, and a plurality of unit areas of an organic light emitting diode (OLED) display disposed on the substrate. The unit areas may be repeating, area-filling subdivisions on the substrate that each have an anode and a cathode. The organic film may be disposed over portions of the device other than the unit areas. The device may include at least one pixel having a plurality of sub-pixels disposed within each of the plurality of unit areas. The cathode of at least one pixel of each of the plurality of unit areas may be a common cathode.Type: GrantFiled: December 13, 2022Date of Patent: July 9, 2024Assignee: Universal Display CorporationInventors: Xin Xu, Gregory McGraw, William E. Quinn, Gregg Kottas, Jason Paynter, Julia J. Brown
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Patent number: 12035553Abstract: A light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode, the interlayer including an emission layer. The first electrode may be doped with a metal oxide having a work function of less than about ?5.05 electron volts (eV), and a layer including a halide of a lanthanide may be between the first electrode and the emission layer. An electronic apparatus including the light-emitting device is also provided.Type: GrantFiled: May 4, 2021Date of Patent: July 9, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyeongpil Kim, Jungmin Kang, Kyungsik Kim, Seokgyu Yoon, Jaeyong Lee, Kunwook Cho
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Patent number: 12035622Abstract: The present invention relates to a compound represented by the general formula (I): (formula I) an organic semiconducting layer comprising the compound, an organic electronic device comprising the organic semiconducting layer and a device comprising the organic electronic device.Type: GrantFiled: November 1, 2018Date of Patent: July 9, 2024Assignee: Novaled GmbHInventors: Regina Luschtinetz, Domagoj Pavicic, Benjamin Schulze
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Patent number: 12035555Abstract: Disclosed is an organic light-emitting diode device including: an electron transport layer, a hole blocking layer and a light emitting layer arranged in a stacked manner; the hole blocking layer includes a first material, and the electron transport layer includes the first material.Type: GrantFiled: August 10, 2021Date of Patent: July 9, 2024Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.Inventors: Jin Xu, Xiaokang Zhou, Hu Wang, Wei Zhao, Zhaoyang Xi, Mengzhen Li
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Patent number: 12018035Abstract: Provided are organoiridium compounds that are useful as emitters in OLEDs. The compounds have Formula I L1L2Ir-L-Ir-L3L4, where: L is a bis-bidentate ligand including two or more aromatic rings; one of the two or more aromatic rings is bonded to the two Ir atoms at the same time; and each of L1, L2, L3, and L4 is independently a bidentate N-heterocyclic carbene ligand or a substituted or unsubstituted acetylacetonate ligand with L1, L2, L3, and L4 each being the same or different. Also provided are formulations including these organoiridium compounds. Further provided are OLEDs and related consumer products that utilize these organoiridium compounds.Type: GrantFiled: February 26, 2021Date of Patent: June 25, 2024Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Jui-Yi Tsai, Alexey Borisovich Dyatkin, Wei-Chun Shih, Zhiqiang Ji, Pierre-Luc T. Boudreault, Miguel A. Esteruelas, Erik Mora, Enrique Oñate
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Patent number: 12005523Abstract: The invention relates to a process for nanostructuring the surface of a solid material in order to form a regular pattern of nanostructures on said surface, comprising: irradiating the surface by a plurality of pulse trains (20) of a femtosecond laser beam: each pulse train (20) comprises at least two pulses (21, 22), each pulse has a peak fluence, and a sum of the peak fluences of the pulses of a pulse train is between 10% and 70% of a threshold fluence corresponding to a material ablation threshold for one pulse for said material, two consecutive pulses of a pulse train are separated by a peak-to-peak duration ?T between 500 fs and 150 ps, two consecutive pulse trains are separated by a duration greater than 10 ?T, obtaining a regular pattern of nanostructures on said portion of surface, having a spatial periodicity lower than 130 nm.Type: GrantFiled: July 12, 2019Date of Patent: June 11, 2024Assignees: Universite Jean Monnet Saint Etienne, Centre National de la Recherche Scientifique (CNRS)Inventors: Florent Pigeon, Anthony Abou Saleh, Jean-Philippe Colombier-Cinquantin, Florence Garrelie
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Patent number: 12004360Abstract: An organic light emitting diode (OLED) architecture in which efficient operation is achieved without requiring a blocking layer by locating the recombination zone close to the hole transport side of the emissive layer. Aryl-based hosts and Ir-based dopants with suitable concentrations result in an efficient phosphorescent OLED structure. Previously, blocking layer utilization in phosphorescent OLED architectures was considered essential to avoid exciton and hole leakage from the emissive layer, and thus keep the recombination zone inside the emissive layer to provide high device efficiency and a pure emission spectrum.Type: GrantFiled: January 24, 2023Date of Patent: June 4, 2024Assignee: Universal Display CorporationInventors: Vadim Adamovich, Michael Stuart Weaver, Raymond Kwong
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Patent number: 12004417Abstract: A heterocyclic compound is represented by Formula 1. A light-emitting device may include a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode and including an emission layer, and the light-emitting device may include at least one heterocyclic compound represented by Formula 1. In Formula 1, the substituents are the same as defined in the detailed description.Type: GrantFiled: January 12, 2021Date of Patent: June 4, 2024Assignee: Samsung Display Co., Ltd.Inventors: Yeseul Lee, Soobyung Ko, Hyeongmin Kim, Heechoon Ahn, Hyunah Um, Yirang Im
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Patent number: 11963441Abstract: A compound of Formula I wherein X1 to X8 are independently selected from C or N, and Y is selected from the group consisting of NR2, O, S, Se, CR3R4, SiR3R4, and GeR3R4. RA and RB represent mono to the maximum allowable substitution, or no substitution. The compounds of Formula I will also have at least one of RA, RB, R1, R2, R3, or R4 that comprises a structure selected from the group consisting of formula A, formula B, and formula C as described herein. In n the structures of formula A, formula B, or formula C, Z is selected from the group consisting of NR5, O, S, Se, CR6R7, SiR6R7, and GeR6R7; wherein R5 is a substituent selected from the group consisting of deuterium, alkyl, cycloalkyl, aryl, heteroaryl, and combinations thereof; or optionally, R5 is an aromatic linker that connects the structure of formula A to Formula I, or the structure of formula C to Formula I.Type: GrantFiled: November 26, 2018Date of Patent: April 16, 2024Assignee: Universal Display CorporationInventor: Peter Wolohan
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Patent number: 11953537Abstract: Disclosed are a test device and a test method thereof. The test device includes a first electrode, an electron transport unit, a charge generation layer, a hole transport unit and a second electrode which are stacked; the charge generation layer includes an N-type doped layer and a P-type doped layer which is stacked on the N-type doped layer, the N-type doped layer is adjacent to the electron transport unit, and the P-type doped layer is adjacent to the hole transport unit.Type: GrantFiled: August 10, 2021Date of Patent: April 9, 2024Assignee: Yungu (Gu'an) Technology Co., Ltd.Inventor: Zhaoyang Xi
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Patent number: 11950486Abstract: A display device, an electronic apparatus and a method for manufacturing the display device are disclosed. The display device includes an array substrate and a first thin film encapsulation layer disposed on the array substrate. The array substrate is a silicon based organic light-emitting diode array substrate, and the array substrate includes a silicon substrate and a light-emitting device disposed on the silicon substrate; a second thin film encapsulation layer disposed between the light-emitting device and the first thin film encapsulation layer; and a color filter layer disposed between the first thin film encapsulation layer and the second thin film encapsulation layer, at each edge of the first thin film encapsulation layer, an orthographic projection of the array substrate on a plane parallel to the array substrate extends beyond an orthographic projection of the first thin film encapsulation layer on the plane.Type: GrantFiled: August 27, 2019Date of Patent: April 2, 2024Assignee: BOE Technology Group Co., Ltd.Inventors: Chao Pu, Shengji Yang, Kuanta Huang, Pengcheng Lu, Xiaochuan Chen
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Patent number: 11950501Abstract: 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: GrantFiled: October 18, 2022Date of Patent: April 2, 2024Assignee: Samsung Display Co., Ltd.Inventors: Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee, Min-Seung Chun
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Patent number: 11944010Abstract: An organic electroluminescent device having an anode, a cathode, and a light emitting layer between the anode and the cathode, in which the light emitting layer contains a first organic compound, a second organic compound, and a third organic compound that satisfy the following expression (A), the second organic compound is a delayed fluorescent material, and the third organic compound is a light emitting material, is capable of enhancing the light emission efficiency. ES1(A), ES1(B) and ES1(C) represent a lowest, singlet excitation energy level of the first, second and third organic compound, respectively.Type: GrantFiled: June 29, 2022Date of Patent: March 26, 2024Assignee: KYULUX, INC.Inventors: Hajime Nakanotani, Chihaya Adachi, Takahiro Higuchi, Taro Furukawa
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Patent number: 11937439Abstract: A multicolor light-emitting element using fluorescence and phosphorescence, which has a small number of manufacturing steps owing to a relatively small number of layers to be formed and is advantageous for practical application can be provided. In addition, a multicolor light-emitting element using fluorescence and phosphorescence, which has favorable emission efficiency is provided. A light-emitting element which includes a light-emitting layer having a stacked-layer structure of a first light-emitting layer exhibiting light emission from a first exciplex and a second light-emitting layer exhibiting phosphorescence is provided.Type: GrantFiled: April 29, 2022Date of Patent: March 19, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Seo, Hiromi Seo, Tatsuyoshi Takahashi, Takahiro Ishisone
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Patent number: 11930697Abstract: An organic light-emitting device is provided to include: a first electrode; a second electrode facing the first electrode; an organic layer between the first electrode and the second electrode, the organic layer including an emission layer; and at least one organometallic compound represented by Formula 1: M1M2L,??Formula 1 wherein, in Formula 1, M1 is a first metal center, M2 is a second metal center, and L is a ligand including a first ligand site coordinated to the first metal center and a second ligand site coordinated to the second metal center, and the first ligand site and the second ligand site are linked by an indoloindole derivative.Type: GrantFiled: August 6, 2019Date of Patent: March 12, 2024Assignee: Samsung Display Co., Ltd.Inventors: Junghoon Han, Soobyung Ko, Sungbum Kim, Sujin Shin, Eunsoo Ahn, Eunyoung Lee, Jaesung Lee, Hyunjung Lee, Mina Jeon
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Patent number: 11925045Abstract: A light emitting device includes a first electrode, a first stack on the first electrode, a first charge generation layer on the first stack, a second stack on the first charge generation layer, and a second electrode on the second stack. The first stack includes a first light emitting layer and a plurality of first organic layers, and the second stack includes a second light emitting layer and a plurality of second organic layers. Among the plurality of first organic layers and the plurality of second organic layers, at least one of organic layers adjacent to the first light emitting layer and the second light emitting layer includes a light emitting material.Type: GrantFiled: May 22, 2020Date of Patent: March 5, 2024Assignee: Samsung Display Co., Ltd.Inventors: Seulong Kim, Taekyung Kim, Pilgu Kang, Jiyoung Kwon, Eungyoung Park, Jiyoung Song, Soon-Chul Chang, Dongseob Jeong
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Patent number: 11919914Abstract: Provided are boron-containing compounds. Also provided are formulations comprising these boron-containing compounds. Further provided are OLEDs and related consumer products that utilize these boron-containing compounds.Type: GrantFiled: October 6, 2020Date of Patent: March 5, 2024Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Peter Wolohan, Tyler Fleetham, Jerald Feldman
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Patent number: 11925070Abstract: Disclosed is a display panel. The display panel includes a semiconductor structure; the semiconductor structure includes a substrate and a partition structure, disposed on the substrate and arranged to partition a film layer disposed on the substrate; the partition structure includes at least a base film layer and a partition film layer that are stacked in sequence; the partition film layer covers the base film layer, and at least one side of the partition film layer extends beyond a corresponding side of the base film layer; and the partition film layer warpage has a warpage structure located at an end portion thereof.Type: GrantFiled: June 11, 2021Date of Patent: March 5, 2024Assignee: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD.Inventors: Jing Tang, Junhui Lou
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Patent number: 11917903Abstract: The present invention relates to binuclear, trinuclear and tetranuclear metal complexes and to electronic devices, especially organic electroluminescent devices, comprising these metal complexes.Type: GrantFiled: March 18, 2019Date of Patent: February 27, 2024Assignee: UDC Ireland LimitedInventors: Philipp Stoessel, Christian Ehrenreich, Armin Auch
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Patent number: 11917902Abstract: Novel organometallic complexes having a structure of Formula (I) that are useful in organic light emitting devices are disclosed.Type: GrantFiled: June 28, 2019Date of Patent: February 27, 2024Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Jason Brooks, Glenn Morello, Chuanjun Xia, Jun Deng
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Patent number: 11910710Abstract: A novel organic compound with which the emission characteristics, emission efficiency, and reliability of a light-emitting element can be improved is provided. The organic compound has an imidazo[1,2-f]phenanthridine skeleton and a dibenzothiophene skeleton or a dibenzofuran skeleton bonded through an arylene group. The light-emitting element including the organic compound in a light-emitting layer shows high efficiency and low power consumption.Type: GrantFiled: September 17, 2019Date of Patent: February 20, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Tomoya Hirose, Hiroshi Kadoma, Satoko Shitagaki, Satoshi Seo
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Patent number: 11882760Abstract: An organic light-emitting device is provided to include: a first electrode; a second electrode facing the first electrode; an organic layer between the first electrode and the second electrode, the organic layer including an emission layer; and at least one organometallic compound represented by Formula 1: M1M2L,??Formula 1 wherein, in Formula 1, M1 is a first metal center, M2 is a second metal center, and L is a ligand including a first ligand site coordinated to the first metal center and a second ligand site coordinated to the second metal center, and the first ligand site and the second ligand site are linked by an indoloindole derivative.Type: GrantFiled: August 6, 2019Date of Patent: January 23, 2024Assignee: Samsung Display Co., Ltd.Inventors: Junghoon Han, Soobyung Ko, Sungbum Kim, Sujin Shin, Eunsoo Ahn, Eunyoung Lee, Jaesung Lee, Hyunjung Lee, Mina Jeon
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Patent number: 11877509Abstract: The present specification relates to an organic light emitting device.Type: GrantFiled: June 1, 2017Date of Patent: January 16, 2024Inventors: Yongbum Cha, Seong So Kim, Sung Jae Lee, Sung Kil Hong
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Patent number: 11871656Abstract: An organic electroluminescence device includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region.Type: GrantFiled: January 24, 2019Date of Patent: January 9, 2024Assignee: Samsung Display Co., Ltd.Inventors: Hideo Miyake, Masatsugu Ueno, Xiulan Jin, Ichinori Takada, Takuya Uno, Hiroaki Itoi
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Patent number: 11856841Abstract: Provided are a fluorinated compound for patterning a metal or an electrode (cathode), an organic electronic element using the same, and an electronic device thereof, wherein a fine pattern of the electrode is formed by using the fluorinated compound as a material for patterning a metal or an electrode (cathode), without using a shadow mask, and it is possible to more easily apply UDC since it is easy to manufacture a transparent display having high light transmittance.Type: GrantFiled: February 15, 2023Date of Patent: December 26, 2023Assignees: DUK SAN NEOLUX CO., LTD., SAMSUNG DISPLAY CO., LTD.Inventors: Ki Won Kim, Kyung Hwan Oh, Bu Yong Yun, Hyung Dong Lee, Jin Woo Shin, Soung Yun Mun, Jae Duk Yoo, Jung Geun Lee, Joon Gu Lee, Yeon Hwa Lee, Mi Kyung Kim, Ji Hyun Seo, Kwan Hee Lee