Electroluminescent Patents (Class 428/917)
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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: 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: 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: 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: 11856805Abstract: An organometallic compound represented by Formula 1: wherein, Formula 1, R1 to R10 and A1 to A7 are the same as described in the detailed description of the specification.Type: GrantFiled: July 31, 2019Date of Patent: December 26, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yongsuk Cho, Yoonhyun Kwak, Jongwon Choi, Hyun Koo, Kyuhyun Im, Dmitry Kravchuk, Seokhwan Hong
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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
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Patent number: 11849603Abstract: A display module includes a display panel on which a display area and a non-display area surrounding the display area are defined and a functional layer disposed on the display panel. Here, the functional layer includes a color filter layer including a plurality of color filters and a plurality of first light shielding layers each disposed between the plurality of color filters, a light control layer including a plurality of light control parts overlapping the plurality of color filter layers, respectively, wherein at least one of the plurality of light control parts includes a quantum dot, and a heat conductive layer. The heat conductive layer includes at least one of metal, graphite, and silicon carbide.Type: GrantFiled: October 31, 2022Date of Patent: December 19, 2023Assignee: Samsung Display Co., Ltd.Inventors: Soodong Kim, Jang Wi Ryu
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Patent number: 11827651Abstract: Provided is a compound comprising a first ligand LA of where at least one of RA and RB is a structure ofType: GrantFiled: April 24, 2020Date of Patent: November 28, 2023Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Walter Yeager, Zhiqiang Ji, Pierre-Luc T. Boudreault
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Patent number: 11820783Abstract: Provided are compounds of Formula Ir(LA)x(LC)y, wherein: ligand LA has Formula I? and ligand LC has Formula II?Type: GrantFiled: August 6, 2020Date of Patent: November 21, 2023Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Wei-Chun Shih, Zhiqiang Ji, Pierre-Luc T. Boudreault, Hsiao-Fan Chen, Tongxiang Lu
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Patent number: 11818948Abstract: Host materials with pentafluorophenyl substitution are described. These compounds are designed for, and used for hosting aza substituted dopants that may be susceptible to intramolecular deprotonation. In addition, the fluorinated substitution aids with electron transport within the emissive layer.Type: GrantFiled: April 19, 2021Date of Patent: November 14, 2023Assignee: Universal Display CorporationInventors: Hsiao-Fan Chen, Jason Brooks, Nicholas J. Thompson
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Patent number: 11807788Abstract: The present disclosure relates to organic electroluminescent compounds and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present disclosure may be comprised in a light-emitting layer or an electron buffer layer, and is effective to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and significantly improved operative lifespan.Type: GrantFiled: December 22, 2021Date of Patent: November 7, 2023Inventor: Hee-Choon Ahn
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Patent number: 11802116Abstract: Provided are a diamine compound and an organic light-emitting device including the same. The organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode and comprising an emission layer, the organic layer including a diamine compound represented by one selected from Formulae 1-1 to 1-8.Type: GrantFiled: March 5, 2019Date of Patent: October 31, 2023Assignee: Samsung Display Co., Ltd.Inventors: Jongwoo Kim, Dongjun Kim, Youngkook Kim, Eunjae Jeong, Sanghyun Han
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Patent number: 11802102Abstract: The present disclosure provides an organic compound of following formula and an organic light emitting diode and an OLED device including the organic compound.Type: GrantFiled: November 20, 2020Date of Patent: October 31, 2023Assignee: LG Display Co., Ltd.Inventors: Suk-Young Bae, Kyung-Jin Yoon, Dae-Wi Yoon, In-Ae Shin, Mi-Sang Yoo
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Patent number: 11805695Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a polycyclic compound represented by Formula 1, and long-life device characteristics may be shown.Type: GrantFiled: September 16, 2020Date of Patent: October 31, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jang Yeol Baek, Jaejin Lyu, Sun Young Pak, Junha Park, Hankyu Pak, Mun-Ki Sim, Chanseok Oh, Hyoyoung Lee, Minjung Jung
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Patent number: 11797052Abstract: An information handling system display with zero bezel defines a perimeter with a square side of a cover glass having a curved interior surface and a gradient refractive index portion that focuses visual images from a folded display film to a flat upper surface of the cover glass. The folded display film provides a display image across a full length of the cover glass while fitting under the cover glass with the fold and presenting undistorted visual images through the lens focus provided by the gradient refractive index portion.Type: GrantFiled: July 24, 2020Date of Patent: October 24, 2023Assignee: Dell Products L.P.Inventors: Jongseo Lee, Duck Soo Choi
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Patent number: 11793064Abstract: Provided is an organic metal complex having a structure represented by the following general formula (1): MLmL?n??(1) where: M represents a metal atom selected from Ir, Pt, Rh, Os, and Zn; L and L?, which are different from each other, each represent a bidentate ligand; m represents an integer of 1 to 3 and n represents an integer of 0 to 2, provided that m+n is 3; a partial structure MLm represents a structure represented by the following general formula (2): and a partial structure ML?n represents a structure including a monovalent bidentate ligand.Type: GrantFiled: April 27, 2020Date of Patent: October 17, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jun Kamatani, Masashi Hashimoto, Satoshi Igawa, Shinjiro Okada
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Patent number: 11780865Abstract: Novel ligands for metal complexes that are useful as phosphorescent emitters in OLEDs are disclosed. The ligands contain an aryl covalently bonded to the coordinating metal where the aryl group has at least two different alkyl side chains that are linked ortho and para compared to the linkage of the coordinating metal on that aryl group.Type: GrantFiled: December 15, 2017Date of Patent: October 10, 2023Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Pierre-Luc T. Boudreault, Bert Alleyne, Scott Joseph, Harvey Wendt
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Patent number: 11768567Abstract: Provided is an electronic device including a display element layer, an encapsulation layer, a sensor layer including a sensing electrode disposed in an active area, and a sensing line disposed in the line area, electrically connected with the sensing electrode, and extending in a first direction, and a high refraction layer disposed on the sensor layer. The sensor layer further includes a first conductive layer disposed on the encapsulation layer, a second conductive layer disposed on the first conductive layer, an inorganic insulation layer disposed between the first conductive layer and the second conductive layer, and an organic insulation layer disposed between the second conductive layer and the high refraction layer. In the line area, at least one opening is defined in the organic insulation layer, the at least one opening extending in a second direction, and the inorganic insulation layer is exposed by the at least one opening.Type: GrantFiled: June 2, 2022Date of Patent: September 26, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Il-Joo Kim, Deokjung Kim, Wonjun Choi, Youngbae Jung
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Patent number: 11756746Abstract: A solid electrolytic capacitor containing a capacitor element is provided. The capacitor element contains a sintered porous anode body, a dielectric that overlies the anode body, a solid electrolyte that overlies the dielectric, and an external coating that overlies the solid electrolyte and includes conductive polymer particles. The solid electrolyte includes an intrinsically conductive polymer containing repeating thiophene units of a certain formula.Type: GrantFiled: September 14, 2022Date of Patent: September 12, 2023Assignee: KYOCERA AVX Components CorporationInventors: Miloslav Uher, Kiyofumi Aoki, Pavel Kucharczyk
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Patent number: 11758784Abstract: A display panel and a fabricating method thereof, and a displaying device. The display panel includes: a thin-film-transistor base plate; a planarization layer, wherein the planarization layer is provided on one surface of the thin-film-transistor base plate; and light emitting devices, wherein the light emitting devices are provided on one side of the planarization layer that is further away from the thin-film-transistor base plate, the light emitting devices include a blue-color light emitting device, a red-color light emitting device and a green-color light emitting device, the blue-color light emitting device includes a first anode, the red-color light emitting device includes a second anode, and the green-color light emitting device includes a third anode; and both of the surface roughness of the first anode and the surface roughness of the second anode are greater than the surface roughness of the third anode.Type: GrantFiled: June 19, 2021Date of Patent: September 12, 2023Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventor: Pingchuan Zeng
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Patent number: 11745145Abstract: An ion-sensitive substance containing a crown ether structure composed of a repeating unit represented by formula (a): —CR1R2—CR3X—O— . . . (a) (in the formula, X is an organic group having an alkoxysilyl group at a terminal, and R1, R2 and R3 are each a hydrogen atom or a hydrocarbon group), and a part or all of the alkoxysilyl groups in the crown ether structure may be hydrolyzed to form a silanol group.Type: GrantFiled: April 27, 2021Date of Patent: September 5, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kei Toyota, Norihito Tsukahara
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Patent number: 11737353Abstract: The present disclosure relates to a plurality of host materials and an organic electroluminescent device comprising the same. The organic electroluminescent device of the present disclosure can exhibit excellent lifespan characteristics while maintaining high luminous efficiency by including a specific combination of a plurality of host compounds.Type: GrantFiled: February 14, 2022Date of Patent: August 22, 2023Inventors: Sang-Hee Cho, Doo-Hyeon Moon, Bitnari Kim
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Patent number: 11725003Abstract: The present disclosure discloses an amine derivative and an organic electroluminescent device thereof, and relates to a technical field of organic photoelectric materials. The technical problem to be solved by the present disclosure is that the current light extraction material has poor thermal stability and the organic electroluminescent device has short service life. The amine derivative of the present disclosure is a diamine with a bridging group containing a fluorenyl group or a spirofluorenyl group, and the substituent group on N contains at least one benzoxazolyl group, benzothiazolyl group or benzimidazolyl group. The organic electroluminescent device of the present disclosure comprises an anode, an organic layer, a cathode and a light extraction layer, the organic layer is located between the anode and the cathode, and the light extraction layer comprises the amine derivative of Formula I according to the present disclosure.Type: GrantFiled: April 14, 2020Date of Patent: August 15, 2023Assignee: Changchun Hyperions Technology Co., LtdInventors: Qian Zhao, Hui Liu, Yingxue Wang
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Patent number: 11719880Abstract: A perovskite optical element includes a light guiding unit and a luminescent layer. The light guiding unit is configured to conduct light and serves as a resonant cavity. The luminescent layer is a thin film made of perovskite material and clads the light guiding unit. The luminescent layer is configured to be excited by an excitation module to emit light. The light is conducted and output by the light guiding unit. A manufacturing method of a perovskite optical element includes preparing a dip coating solution; dipping a single crystal optical fiber in the dip coating solution for one hour, removing the single crystal optical fiber out of the dip coating solution, and drying the single crystal optical fiber; and placing the single crystal optical fiber into a tube furnace, heating the crystal optical fiber, and introducing synthetic molecules into the tube furnace.Type: GrantFiled: December 10, 2021Date of Patent: August 8, 2023Assignee: NATIONAL DONG HWA UNIVERSITYInventors: Duc-Huy Nguyen, Jia-Yuan Sun, Chia-Yao Lo, Jia-Ming Liu, Wan-Shao Tsai, Ming-Hung Li, Sin-Jhang Yang, Cheng-Chia Lin, Shien-Der Tzeng, Yuan-Ron Ma, Ming-Yi Lin, Chien-Chih Lai
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Patent number: 11718634Abstract: Cyclometallated iridium complexes having triphenylene or aza triphenylene and bulky alkyl substitution that can be used as emitters in OLEDs to improve the external quantum efficiency (EQE) and lifetime of OLEDs are disclosed.Type: GrantFiled: August 26, 2019Date of Patent: August 8, 2023Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Zhiqiang Ji, Alexey Borisovich Dyatkin, Jui-Yi Tsai, Pierre-Luc T. Boudreault
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Patent number: 11723264Abstract: 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: March 11, 2021Date of Patent: August 8, 2023Inventors: Tsunenori Suzuki, Naoaki Hashimoto, Eriko Saijo, Satoshi Seo
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Patent number: 11720142Abstract: A sheet for a display panel according to the present invention comprises: a base substrate which includes a protective member on one surface thereof, is visually transparent, and has a flat shape; a print layer which covers a part of one surface of the base substrate, has a predetermined thickness, and blocks light transmission therethrough; a filling layer which covers both the print layer and the base substrate, has a flat-shaped outer surface, and has visual transparency; and an adhesive member which is visually transparent, covers the outer surface of the filling layer, has an adhesive function, and is adhered to a transparent member forming the appearance of a display panel.Type: GrantFiled: January 18, 2021Date of Patent: August 8, 2023Assignee: SG GLOBAL CO., LTD.Inventor: Ji Woong Kim
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Patent number: 11716863Abstract: Embodiments of the disclosed subject matter provide a full-color pixel arrangement for a full-color display is provided, the arrangement having a plurality of pixels, with each pixel including a first sub-pixel comprising a Group III-V inorganic emissive thin film configured to emit light of a first color, where there is at least one first sub-pixel per pixel of the full-color pixel arrangement. Each pixel may include an organic second sub-pixel and an organic third sub-pixel that are configured to emit light of a different color than the first color.Type: GrantFiled: April 19, 2021Date of Patent: August 1, 2023Assignee: Universal Display CorporationInventors: Michael Hack, Michael Stuart Weaver, Julia J. Brown
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Patent number: 11709429Abstract: A composition for forming an organic film contains a polymer having a repeating unit shown by formula (1A) as a partial structure, and an organic solvent, where AR1 and AR2 represent a benzene ring or naphthalene ring optionally with a substituent; W1 represents any in formula (1B), and the polymer optionally contains two or more kinds of W1; W2 represents a divalent organic group having 1 to 80 carbon atoms; R1 represents a monovalent organic group having 1 to 10 carbon atoms and an unsaturated bond; and R2 represents a monovalent organic group having 6 to 20 carbon atoms and one or more aromatic rings. This invention provides: an organic film composition which enables excellent film formability, high etching resistance, and excellent twisting resistance without impairing the resin-derived carbon content, and which contains less outgassing-causing sublimation component; a patterning process using the composition; and a polymer suitable for the composition.Type: GrantFiled: May 18, 2020Date of Patent: July 25, 2023Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Daisuke Kori, Takashi Sawamura, Kenta Ishiwata, Takayoshi Nakahara
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Patent number: 11711969Abstract: A novel compound is disclosed which includes a ligand LA of Formula II, 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 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, carboxylic acid, ether, ester, nitrile, isonitrile, suType: GrantFiled: June 9, 2021Date of Patent: July 25, 2023Assignee: Universal Display CorporationInventors: Pierre-Luc T. Boudreault, Bert Alleyne, Zhiqiang Ji
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Patent number: 11685754Abstract: Provided are transition metal compounds having 5-membered carbocyclic or heterocyclic ring in a unique configuration of fused rings per Formula I The compounds show improved phosphorescent emission in red to near IR region and are useful as emitter materials in organic electroluminescence device.Type: GrantFiled: June 30, 2020Date of Patent: June 27, 2023Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Chun Lin, Pierre-Luc T. Boudreault, Bert Alleyne, Zhiqiang Ji, Suman Layek
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Patent number: 11680035Abstract: The organic small molecule 4,4?,4?,4??-(5,5-dimethoxycyclopenta-1,3-diene-1,2,3,4-tetrayl)tetrakis(N,N-bis(4-methoxyhenyl)aniline (CPDA 1), shows electrochemical properties very close to spiro-OMeTAD indicating a high compatibility with PSC systems for its use as a hole transport material (HTM). The implementation of the cyclopentadiene dimethyl acetale core helps to red shift the absorption onset of the films as well as provide a flexible spatial configuration of the molecule, which is essential for optimum film forming properties. Transient and steady state emission analysis as well as hole mobility measurements indicate that the new HTM allows a better charge extraction, transport and separation than the spiro-OMeTAD reference compound. PSCs based on the new CPDA 1 show a PCE close to 23% with lower hysteresis than its analogue. Stability studies performed under ambient, heated and humid conditions all showed that CPDA 1 is over-performing spiro-OMeTAD.Type: GrantFiled: August 2, 2021Date of Patent: June 20, 2023Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Yuhang Liu, Shaik Mohammed Zakeeruddin, Michael Graetzel, Michael Bauer, Peter Bäuerle
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Patent number: 11683952Abstract: There has been a problem that difference in refractive index between an opposite substrate or a moisture barrier layer provided thereover, and air is maintained large, and light extraction efficiency is low. Further, there has been a problem that peeling or cracking due to the moisture barrier layer is easily generated, which leads to deteriorate the reliability and lifetime of a light-emitting element. A light-emitting element comprises a pixel electrode, an electroluminescent layer, a transparent electrode, a passivation film, a stress relieving layer, and a low refractive index layer, all of which are stacked sequentially. The stress relieving layer serves to prevent peeling of the passivation film. The low refractive index layer serves to reduce reflectivity of light generated in the electroluminescent layer in emitting to air. Therefore, a light-emitting element with high reliability and long lifetime and a display device using the light-emitting element can be provided.Type: GrantFiled: June 28, 2021Date of Patent: June 20, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hisao Ikeda, Hiroki Ohara, Makoto Hosoba, Junichiro Sakata, Shunichi Ito
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Patent number: 11665960Abstract: A novel organic compound is provided. That is, a novel organic compound that is effective in improving element characteristics and reliability is provided. The organic compound includes an anthracene skeleton and a carbazole skeleton, and is represented by the following general formula (G1). (In the formula, Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms, and when the arylene group has substituents, the substituents may be bonded to each other to form a ring. Furthermore, Cz represents a substituted or unsubstituted carbazole skeleton. Furthermore, each of R1 to R9 and R11 to R17 independently represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 6 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms. Furthermore, at least one of the following pairs may form a fused ring: R12 and R13; R14 and R15; R15 and R16; or R16 and R17.Type: GrantFiled: January 26, 2018Date of Patent: May 30, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hiroshi Kadoma, Hiroki Suzuki, Yusuke Takita, Tsunenori Suzuki, Satoshi Seo
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Patent number: 11641774Abstract: A method for fabricating an OLED using a mixture that is an evaporation source for a vacuum deposition process includes providing a container that contains the mixture, providing a substrate having a first electrode disposed thereon, depositing an organic layer over the first electrode by evaporating the mixture in the container in a high vacuum deposition tool, and depositing a second electrode over the organic layer.Type: GrantFiled: June 10, 2020Date of Patent: May 2, 2023Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Vadim Adamovich, Lichang Zeng, Ting-Chih Wang, Chuanjun Xia, Michael S. Weaver
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Patent number: 11637224Abstract: Various methods and apparatuses are disclosed. A method may include disposing at least one die on a location on a carrier substrate, forming at least one stud bump on each of at least one die, forming a phosphor layer on the at least one stud bump and the at least one die, removing a top portion of the phosphor layer to expose the at least one stud bump, and removing a side portion of the phosphor layer located between two adjacent dies. An apparatus may include a die comprising top, bottom, and side surfaces. A phosphor layer may be disposed on the top, bottom, and side surfaces of the die. The phosphor layer may have substantially equal thicknesses on the top and side surfaces of the die as well as one or more stud bumps disposed on the top surface of the die.Type: GrantFiled: September 25, 2020Date of Patent: April 25, 2023Assignee: BRIDGELUX, INC.Inventors: Babak Imangholi, Khashayar Phil Oliaei, Scott West
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Patent number: 11631826Abstract: A light-emitting element is provided, including a first electrode and a second electrode, a first layer including first and second organic compounds, the first layer being formed between the first electrode and the second electrode wherein the first organic compound is capable of emitting a first light and the second organic compound has an electron transporting property, and a second layer including third and fourth organic compounds, the second layer being formed between the first layer and the second electrode wherein the third organic compound is capable of emitting a second light and has an electron trap property and the fourth organic compound has an electron transporting property.Type: GrantFiled: February 25, 2021Date of Patent: April 18, 2023Inventors: Tsunenori Suzuki, Satoshi Seo
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Patent number: 11623936Abstract: A neutral Ir compound having a first ligand LA of Formula I is disclosed. The Ir compound having azaperylene moieties are useful as emissive dopants in OLED devices for improving the device performance.Type: GrantFiled: December 2, 2019Date of Patent: April 11, 2023Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Zhiqiang Ji, Pierre-Luc T. Boudreault, Suman Layek