Organic Phosphor Patents (Class 313/504)
  • Patent number: 12232416
    Abstract: An organic light emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the organic layer includes a first compound, a second compound, a third compound, and a fourth compound, and the first compound to the fourth compound satisfy Equations 1 to 8: E1,LUMO?E2,LUMO+0.15 electron volts (eV)??Equation 1 E1,HOMO?E2,HOMO+0.15 eV??Equation 2 E1,T1?E4,T1??Equation 3 E2,T1?E4,T1??Equation 4 E3,T1?E4,T1??Equation 5 E3,LUMO?E2,LUMO+0.1 eV??Equation 6 ?5.6 eV?E3,HOMO??Equation 7 Egap1?Egap3.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: February 18, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hwan-Hee Cho, Myeong-Suk Kim, Sung-Wook Kim, Se-Hun Kim, Jin-Soo Hwang
  • Patent number: 12225815
    Abstract: The present invention relates to a composition for an organic optoelectronic device, the composition comprising: a first host compound represented by Chemical Formula 1 below; and a second host compound represented by Chemical Formula 2 below, to an organic optoelectronic device using the composition and a display device. The details of Chemical Formulas 1 and 2 above are as defined in the specification.
    Type: Grant
    Filed: November 7, 2023
    Date of Patent: February 11, 2025
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Dong Wan Ryu, Chang Ju Shin, Seungjae Lee, Hyung Sun Kim, Yuna Jang, Eun Sun Yu, Sung-Hyun Jung
  • Patent number: 12225799
    Abstract: A display panel, including: a plurality of pixels arranged in an array in a first direction and a second direction intersecting the first direction, each pixel including: a first sub-pixel having a first light-emitting zone configured to emit light of a first color; a second sub-pixel having a second light-emitting zone configured to emit light of a second color; and a third sub-pixel having a third light-emitting zone configured to emit light of a third color, wherein the plurality of pixels include a first pixel, the first light-emitting zone of the first pixel has a substantially polygonal shape, the substantially polygonal shape including: a first side substantially parallel to one side of the second light-emitting zone of the first pixel, and the one side of the second light-emitting zone of the first pixel being opposite to the first light-emitting zone; and a second side substantially parallel to one side of the third light-emitting zone of the first pixel, and the one side of the third light-emitting
    Type: Grant
    Filed: March 27, 2023
    Date of Patent: February 11, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Liang Sun, Tuo Sun, Xiaodan Jin, Lintao Zhang
  • Patent number: 12221534
    Abstract: A composition for temporary bonding, including the following (A) to (C). An adhesive for temporary bonding for manufacturing an electronic device, including the composition for temporary bonding. (A) A (meth)acrylate comprising the following (A-1) and (A-2): (A-1) a monofunctional (meth)acrylate whose homopolymer has a Tg of ?100° C. to 60° C., and (A-2) a polyfunctional (meth)acrylate; (B) a polyisobutene homopolymer; and (C) a photo radical polymerization initiator.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: February 11, 2025
    Assignee: DENKA COMPANY LIMITED
    Inventors: Tometomo Uchida, Takashi Domoto, Takako Tanigawa, Kenji Nomura, Yoshitsugu Goto
  • Patent number: 12221435
    Abstract: The present disclosure provides an organic molecule, and use of the organic molecule in an organic optoelectronic display, the organic molecule consisting of a first chemical moiety with a structure of formula I, and two second chemical moieties with a structure of formula II, wherein the first chemical moiety is linked to each of the two second chemical moieties via a single bond; and wherein the remaining variables are as defined in the disclosure.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: February 11, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventor: Stefan Seifermann
  • Patent number: 12217633
    Abstract: The present disclosure provides a display panel and a manufacturing method of the display panel, and a display apparatus, and belongs to the field of display technology. The display panel of the present disclosure includes a flexible substrate and a support substrate, wherein the support substrate supports the flexible substrate; a plurality of display units are provided on the flexible substrate; the display panel further includes: a first magnetic unit; a second magnetic unit; the first magnetic unit and the second magnetic unit are used for jointing the flexible substrate to the support substrate through a magnetic field therebetween.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: February 4, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanan Niu, Hongwei Tian, Zhongyuan Sun, Jing Niu, Lei Chen, Wei Huang, Zhiqiang Jiao
  • Patent number: 12211963
    Abstract: A light emitting device includes: a base substrate; a plurality of unit regions provided on the base substrate; a barrier disposed at a boundary of the unit regions to surround each of the unit regions; a dam disposed in each of the unit regions to be spaced apart from the barrier; a first electrode provided in each of unit light emitting regions surrounded by the dam; a second electrode disposed in each of the unit light emitting regions, the second electrode of which at least one region is provided opposite to the first electrode; and one or more LEDs provided in each of the unit light emitting regions, the one or more LEDs being electrically connected between the first electrode and the second electrode.
    Type: Grant
    Filed: November 27, 2023
    Date of Patent: January 28, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Deok Im, Jong Hyuk Kang, Dae Hyun Kim, Joo Yeol Lee, Hyun Min Cho
  • Patent number: 12213334
    Abstract: The present invention provides an organic emitting diode including a first electrode; a second electrode facing the first electrode; an emitting material layer between the first and second electrodes; and an intervening layer between the emitting material layer and the second electrode and including a base material and an electron injection material, wherein the intervening layer contacts the second electrode.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: January 28, 2025
    Assignee: LG Display Co., Ltd.
    Inventors: Hee-Jin Kim, Hak-Min Lee, Sung-Soo Park
  • Patent number: 12206049
    Abstract: An inorganic light-emitting diode substrate includes: a base, a plurality of epitaxial layer structures disposed on the base, a passivation layer, and a plurality of second electrodes disposed on a side of the passivation layer away from the base. The base includes a base substrate and a plurality of first electrodes disposed on the base substrate. The plurality of epitaxial layer structures are spaced apart, and each first electrode is coupled to one epitaxial layer structure. The passivation layer is made of photoresist. The passivation layer covers surfaces, away from the base, of the plurality of epitaxial layer structures, and fills gaps between the plurality of epitaxial layer structures. The passivation layer has a plurality of via holes, and each second electrode is coupled to one epitaxial layer structure through at least one via hole.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: January 21, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Guo, Hu Meng, Qi Qi
  • Patent number: 12207516
    Abstract: An organic light-emitting display device includes: a display panel having a first display area and a second display area, the first and second display areas having different light transmittances from each other in a unit area, wherein the display panel includes a plurality of organic light-emitting diodes disposed in the first display area and the second display area, wherein a first organic light-emitting diode disposed in the first display area and a second organic light-emitting diode disposed in the second display area each include at least one light emitter, and the number of the light emitter included in the second organic light-emitting diode is greater than the number of the light emitter included in the first organic light-emitting diode.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: January 21, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Eok Jang, Seung Chan Lee, Sun Ho Kim, Dong Hwan Shim, Sun Hee Lee, Gun Hee Kim, Tae Hoon Yang
  • Patent number: 12200985
    Abstract: The display device comprises a plurality of pixels each including a plurality of first electrodes; a second electrode formed on the plurality of first electrodes and common to the plurality of pixels; and a routing wiring formed in the same layer as the first electrode, wherein the routing wiring includes a line portion extending in a first direction between the adjacent pixels, and an extension portion extending in a second direction from the line portion toward at least one first electrode included in one of the adjacent pixels and in which the other first electrode of the one pixel is arranged in the first direction, and a part of the second electrode is in physical contact with the extension portion to be electrically connected to the routing wiring.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: January 14, 2025
    Assignee: Japan Display Inc.
    Inventor: Keisuke Harada
  • Patent number: 12200990
    Abstract: A display device includes: a display unit including a plurality of first scan lines, a plurality of second scan lines, a plurality of data lines, and a plurality of pixel circuits; and a drive circuit configured to drive the first scan lines, the second scan lines, and the data lines. Each of the pixel circuits includes: a light-emitting element; a drive transistor configured to control a magnitude of an electric current that flows through the light-emitting element, a first compensation transistor having a control terminal connected to an associated one of the first scan lines; and a second compensation transistor having a control terminal connected to an associated one of the second scan lines. The first and second compensation transistors are connected in series and disposed between a control terminal and a conduction terminal of the drive transistor, the conduction terminal leading to the light-emitting element.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: January 14, 2025
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Kohhei Tanaka
  • Patent number: 12197664
    Abstract: Embodiments of the present disclosure provide a display panel and a display device, the display panel forms multiplexing electrodes on a common electrode layer, and the multiplexing electrodes can transmit a common signal and a touch signal, a function of the common electrodes and a touch function are realized, parasitic capacitances between the touch electrodes and the common electrodes are eliminated, and the display effect and the touch effect are improved, and by using the power management chip to connect to the multiplexing electrodes, the signal input to the multiplexing electrode can be realized, and a function of the multiplexing electrodes can be realized.
    Type: Grant
    Filed: September 18, 2021
    Date of Patent: January 14, 2025
    Assignees: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Houfu Gong, Yalong Ma, Zengjian Jin
  • Patent number: 12201012
    Abstract: This invention discloses iridium complexes containing phenylpyridine ligand wherein there is an aryl or heterocyclic ring fused into phenyl ring. The iridium complexes showed desired device performance.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: January 14, 2025
    Assignee: Universal Display Corporation
    Inventors: Bin Ma, Chuanjun Xia
  • Patent number: 12200962
    Abstract: A method of fabricating a light emitting device comprises providing a mold having an unpolished surface with an arithmetic mean roughness Ra in a range from 0.1 ?m to 10 ?m, depositing a thin polymer film over the surface of the mold, wherein the film has a thickness in a range from 1 ?m to 100 ?m, positioning a light emitting body onto the thin polymer film, wherein the light emitting body includes an anode, a cathode, and a light emitting layer positioned between the anode and the cathode, and separating the thin polymer film with the light emitting body from the mold. A light emitting device is also described.
    Type: Grant
    Filed: October 27, 2023
    Date of Patent: January 14, 2025
    Inventors: Yue Qu, Xiaheng Huang, Stephen R. Forrest
  • Patent number: 12193309
    Abstract: An OLED display panel and an electronic device are disclosed. The OLED display panel comprises a main display part and a first organic packaging layer, and the main display part has a display area and a non-display area disposed around the display area; and the first organic packaging layer is disposed on the main display part, wherein the first organic packaging layer comprises a first organic packaging section, the first organic packaging section is located in the non-display area, and the first organic packaging section comprises water absorbent.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: January 7, 2025
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Weiran Cao, Jinchuan Li, Ying Liu, Wendong Lian
  • Patent number: 12185563
    Abstract: A display device including: a substrate element including a base layer, a circuit layer, and a device layer, the base layer forming a plane defined by a first direction and a second direction perpendicular to each other; an encapsulation element provided on the substrate element to seal the device layer; a sealing element provided along edges of the encapsulation element to connect the encapsulation and substrate elements to each other; an optical element provided on the encapsulation element; a window element provided on the substrate element; an adhesive element provided between the optical and window elements to connect the optical element to the window element; and a filling element provided between the window element and the substrate element, wherein the filling element is spaced apart from the optical element and the adhesive element, and is overlapped with the sealing element when viewed in a direction normal to the plane.
    Type: Grant
    Filed: May 3, 2023
    Date of Patent: December 31, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sungsoo Lee, Heesook Yoon, Tetsuji Kamine, Muhyun Kim, Donghun No, Jeongwoo Moon, Yunjeong Cho, Youngkuil Joo
  • Patent number: 12178109
    Abstract: A display device includes: a display element provided to a display region; an analysis element provided to a frame region disposed around the display region; and a sealing layer sealing the display element and the analysis element. The display element includes: a TFT layer including a resin film; and a light-emitting element layer including a first electrode, a functional layer, and a second electrode. The analysis element includes: a first metal film formed on the resin film; an analysis layer formed on the first metal film; a second metal film formed to cover at least a portion of an edge of the analysis layer, and electrically connected to the first metal film; and a ground wire electrically connected through the first metal film to the second metal film.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: December 24, 2024
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Toshihiro Kaneko
  • Patent number: 12171138
    Abstract: Organic light emitting materials and devices comprising phosphorescent metal complexes comprising ligands comprising aryl or heteroaryl groups substituted at both ortho positions are described. An organic light emitting device, comprising: an anode, a hole transport layer; an organic emissive layer comprising an emissive layer host and an emissive dopant; an electron impeding layer, and electron transport layer, and a cathode disposed, in that order, over a substrate.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: December 17, 2024
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chun Lin, Peter B. Mackenzie, Robert W. Walters, Jui-Yi Tsai, Cory S. Brown, Jun Deng
  • Patent number: 12171126
    Abstract: A display substrate, a manufacturing method thereof, and a display device are provided. The display substrate includes a base substrate, organic light-emitting elements, a data line, and an electrode line. The organic light-emitting element includes a first electrode, a light-emitting layer and a second electrode sequentially stacked; the data line is located between the base substrate and the organic light-emitting element; the electrode line is on the same layer as the data line and located in a region outside a light-emitting region of the organic light-emitting element. The display substrate further includes at least one connection portion, which is in the region outside the light-emitting region and is configured to connect the electrode line and the first electrode, the connection portion is spaced apart from the second electrode, and the light-emitting layer covers the second electrode and the at least one connection portion.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: December 17, 2024
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY GROUP CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ning Liu, Dacheng Zhang, Tong Wu, Jun Liu, Qinghe Wang, Yang Zhang, Bin Zhou, Liangchen Yan, Huadong Wang, Chongchong Liu, Jie Zhang
  • Patent number: 12167663
    Abstract: A method of manufacturing an organic light-emitting diode display comprising a substrate having a well-defined by a confinement structure, the well containing a first electrode and a second electrode spaced from each other, wherein the method may comprise depositing a light-emissive material in the well via ink-jet printing, thereby forming a substantially continuous light-emissive material layer in the well from the deposited light-emissive material, the light-emissive material layer spanning and contained within boundaries of the well, wherein a surface of the light-emissive material layer that faces away from the substrate has a non-planar topography. The method may further comprise positioning a common electrode over the light-emissive material layer.
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: December 10, 2024
    Assignee: Kateeva, Inc.
    Inventor: Conor F. Madigan
  • Patent number: 12167683
    Abstract: An organic electroluminescence device includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: December 10, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventor: Tetsuji Hayano
  • Patent number: 12161025
    Abstract: A display apparatus can include a substrate comprising a plurality of subpixels, a display area, and a non-display area; a first insulating layer disposed on the substrate; a plurality of first electrodes disposed on the first insulating layer and disposed at the plurality of subpixels, respectively; a bank disposed between the plurality of subpixels; a hole configured to divide the first insulating layer into an inner first insulating layer portion and an outer first insulating layer portion in the non-display area at a periphery of the display area, the inner first insulating layer portion being closer to the display area than the outer first insulating layer portion; a first layer disposed under the hole between the inner first insulating layer portion and the outer first insulating layer portion; and an organic layer and a second electrode disposed on the plurality of first electrodes.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: December 3, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: HyunGi Shin, HeeKwang Kang
  • Patent number: 12148392
    Abstract: [Object] To provide a display apparatus that can achieve enhancement in display performance of a screen and higher definition. [Solution] There is provided a display apparatus. The drive circuit includes a drive transistor configured to control the light emitting unit, a video signal writing transistor configured to control writing of a video signal, and a capacitative element. In the drive transistor, one source/drain region is connected to a current supply line, another source/drain region is connected to the light emitting unit and a first node of the capacitative element, and a gate electrode is connected to a second node of the capacitative element. In the video signal writing transistor, one source/drain region is connected to a data line, another source/drain region is connected to the gate electrode of the drive transistor and the second node of the capacitative element, and a gate electrode is connected to a scanning line.
    Type: Grant
    Filed: June 20, 2023
    Date of Patent: November 19, 2024
    Assignee: Sony Group Corporation
    Inventor: Takashi Yamazaki
  • Patent number: 12146619
    Abstract: A light bulb shaped lamp (1) according to the present invention includes: a base board (120); an LED chip (110) mounted on the base board (120); a base (190) for receiving power from outside; at least two power-supply leads (140) for supplying power to the LED chip (110); and a globe (170) for housing the base board (120), the LED chip (110), and the power-supply leads (140), the globe being partially attached to the base (190), the base board (120) is translucent, each of the two power-supply leads (140) is extended from a side of the base toward inside of the globe and is connected to the base board (120), and the LED chip (110) is provided between (i) a portion at which one of the two power-supply leads (140) and the base board (120) are connected and (ii) a portion at which the other of the two power-supply leads (140) and the base board (120) are connected.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: November 19, 2024
    Assignee: SATCO PRODUCTS, INC.
    Inventors: Nobuyoshi Takeuchi, Tsugihiro Matsuda, Hideo Nagai, Masahiro Miki, Yoshitaka Kurimoto
  • Patent number: 12150220
    Abstract: A method for manufacturing a functional element including a pixel, the method includes: applying a coating containing a curable material and a functional material; curing the coating applied by the applying the coating; and adjusting a film thickness of the coating cured by the curing the coating to decrease the film thickness of the coating.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: November 19, 2024
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takahiro Adachi, Jun Sakuma, Yasushi Asaoka
  • Patent number: 12145898
    Abstract: The present disclosure relates to a compound of Chemical Formula 1, and a composition and an organic light emitting device including the same. The composition including the compound or a cured material thereof is included in an organic material layer of the organic light emitting device.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: November 19, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Jae Seung Ha, Seong So Kim, Minseung Chun
  • Patent number: 12139501
    Abstract: Provided are compounds having a ligand LA of Formula I that are useful as emissive compounds in organic light emitting devices.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: November 12, 2024
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Wei-Chun Shih, Hsiao-Fan Chen, Pierre-Luc T. Boudreault, Bert Alleyne, Zhiqiang Ji
  • Patent number: 12144251
    Abstract: Provided is an organic electroluminescence device including a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region, in which the hole transport region includes a condensed cyclic compound, thereby securing high emission efficiency.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: November 12, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventor: Takuya Uno
  • Patent number: 12133457
    Abstract: An organic light-emitting device is provided. The device includes a first electrode, a second electrode, and an organic layer disposed between the first electrode and the second electrode and including an emission layer. The organic layer includes a first compound represented by Formula 1 and a second compound represented by Formula 2. Various possibilities for the constituents of chemical structures in Formulas 1 and 2 are presented.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: October 29, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hwan-Hee Cho, Myeong-Suk Kim, Jae-Yong Lee, Hye-In Jeong
  • Patent number: 12122768
    Abstract: A compound represented by formula (I). In formula (I), each L independently represents a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group, n indicates the number of L groups, and is either 1 or 2, each Q independently represents a substituted or unsubstituted 3,6-di-t-butyl-9H-carbazol-9-yl group, a substituted or unsubstituted 3,6-diphenyl-9H-carbazol-9-yl group, or a substituted or unsubstituted 3-phenyl-6-t-butyl-9H-carbazol-9-yl group, and in indicates the number of Q groups, and has a value of 5?n.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: October 22, 2024
    Assignees: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, NIPPON SODA CO., LTD.
    Inventors: Takuma Yasuda, In Seob Park, Katsunori Tanaka, Yasuhiro Miyashita, Yasuhiko Ashikari
  • Patent number: 12120945
    Abstract: An organic light emitting diode having a substrate, a first electrode, a hole transporting layer proximate the first electrode, a second electrode, an electron transporting layer proximate the second electrode, and an emissive layer between the hole transporting layer and the electron transporting layer. The emissive layer includes a square planar tetradentate platinum or palladium complex, and excimers formed by two or more of the complexes are aligned such that emitting dipoles of the excimers are substantially parallel to a surface of the substrate.
    Type: Grant
    Filed: February 10, 2023
    Date of Patent: October 15, 2024
    Assignee: Arizona Board of Regents on behalf of Arizona State University
    Inventor: Jian Li
  • Patent number: 12120923
    Abstract: The present application provides a display device and a method for manufacturing the display device. The display device includes a display region and a non-display region. The display device includes an array substrate, a planarization layer, a pixel defining layer, and a protective layer. The planarization layer is disposed on the array substrate. The pixel defining layer is located in the display region. The pixel defining layer is disposed on the planarization layer. The protective layer is located in the non-display region. The protective layer is disposed on the planarization layer.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: October 15, 2024
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Yungsheng Chen, Qian Jiang
  • Patent number: 12114520
    Abstract: An organic light emitting device including, in sequence, an anode, a light emitting layer, a first electron transport layer, a second electron transport layer, and a cathode, wherein the second electron transport layer includes a first material and a second material different from the first material, and the first electron transport layer includes a third material and a fourth material different from the third material.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: October 8, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Yamada, Satoru Shiobara, Jun Kamatani
  • Patent number: 12114547
    Abstract: Provided is a display panel, including a substrate, multiple pixel circuits, an insulating layer, multiple first electrodes, a first isolation structure, and a second isolation structure. The pixel circuits are located on the substrate. The insulating layer is located on the pixel circuits and has multiple through holes. The first electrodes are located on the insulating layer and are respectively electrically connected to the pixel circuits through the through holes. The first isolation structure is located on the insulating layer and overlaps the through holes. The second isolation structure includes multiple separating parts and multiple cover parts. The separating parts and the first isolation structure at least partially overlap, and the cover parts respectively overlap the through holes and the first isolation structure.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: October 8, 2024
    Assignee: Au Optronics Corporation
    Inventors: Kuo-Jui Chang, Wen-Tai Chen, Chi-Sheng Chiang, Yu-Chuan Liao, Chien-Sen Weng, Ming-Wei Sun
  • Patent number: 12108618
    Abstract: A white light emitting device and a display device using the same which can prevent a change in luminance due to change in viewing angle, improve color deviation, and lower a driving voltage at the same time, through a change in an internal stack structure and a thickness an emission-side electrode with regard to a vertical distance from a lower surface of the first electrode to a lower surface of the second electrode.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: October 1, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Mi Young Han, Min Hyeong Hwang, Jung Keun Kim
  • Patent number: 12108663
    Abstract: The present disclosure relates to an organic electric element for realizing high luminous efficiency, and high heat resistance of the element, improve the color purity of the element, and increase the lifetime of the element.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: October 1, 2024
    Assignee: Duk San Neolux Co., Ltd.
    Inventors: Dae Sic Kim, Jung Geun Lee, Dong Hee Shin, Bu Yong Yun, Jeong Seok Kim
  • Patent number: 12108625
    Abstract: A display device according to the present disclosure includes a first electrode, an inorganic hole injecting and transporting layer which is formed of an inorganic material and is formed on the first electrode, at least two light emitting units including a first organic light emitting unit and a second organic light emitting unit having different luminescent colors which are formed on the inorganic hole injecting and transporting layer, an electron transport layer which is formed on the at least two organic light emitting units, and a second electrode which is formed on the electron transport layer. Furthermore, a light emitting layer of the first organic light emitting unit is formed by laminating a light emitting layer of a first luminescent color and a light emitting layer of a second luminescent color, and a light emitting layer of the second organic light emitting unit is formed of the light emitting layer of the second luminescent color.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: October 1, 2024
    Assignee: Sony Group Corporation
    Inventors: Tomoyoshi Ichikawa, Hiroshi Fujimaki
  • Patent number: 12100728
    Abstract: A display device comprises a substrate including a display area and a non-display area, and pixels disposed in the display area, each of the pixels including sub-pixels. Each of sub-pixels includes a pixel circuit layer, and a display element layer including at least one light emitting element. The display element layer includes first and second electrodes spaced apart from each other, the light emitting element disposed between the first electrode and second electrode, a first contact electrode that electrically connects an end of the light emitting element to the first electrode, and a second contact electrode that electrically connects another end of the light emitting element to the second electrode. Each of sub-pixels includes a first area in which the pixel circuit layer is disposed, and a second area adjacent to the first area. The second area includes a transmission area through which the light passes.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: September 24, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Oh Kwag, Jong Hyuk Kang, Keun Kyu Song, Sung-Chan Jo, Hyun Min Cho
  • Patent number: 12101948
    Abstract: Systems and methods for organic semiconductor devices with sputtered contact layers are provided. In one embodiment, an organic semiconductor device comprises: a first contact layer comprising a first sputter-deposited transparent conducting oxide; an electron transport layer interfacing with the first contact layer; a second contact layer comprising a second sputter-deposited transparent conducting oxide; a hole transport layer interfacing with the second contact layer; and an organic semiconductor active layer having a first side facing the electron transport layer and an opposing second side facing the hole transport layer; wherein either the electron transport layer or the hole transport layer comprises a buffering transport layer.
    Type: Grant
    Filed: July 13, 2023
    Date of Patent: September 24, 2024
    Assignees: Alliance for Sustainable Energy, LLC, SolarWindow Technologies, Inc.
    Inventors: Scott R. Hammond, Marinus Franciscus Antonius Maria van Hest
  • Patent number: 12096690
    Abstract: 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 is represented by General Formula (G1) having a dibenzobenzofuroquinoxaline skeleton or a dibenzobenzothienoquinoxaline skeleton. In General Formula (G1), Q represents O or S, at least one of R1 to R12 represents a first group having a substituted or unsubstituted condensed aromatic ring or condensed heteroaromatic ring having 3 to 30 carbon atoms, and the other or others of R1 to R12 each independently represent any one of hydrogen, a halogeno group, a hydroxy group, an amino group, a nitro group, and a group having 1 to 50 carbon atoms.
    Type: Grant
    Filed: August 23, 2022
    Date of Patent: September 17, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tomoya Yamaguchi, Hideko Yoshizumi, Hiromitsu Kido, Airi Ueda, Satoshi Seo
  • Patent number: 12096681
    Abstract: An OLED is disclosed whose emissive layer has a first host and an emitter, where the emitter is a phosphorescent metal complex or a delayed fluorescent emitter, where EH1T, the T1 triplet energy of the first host, is higher than EET, the T1 triplet energy of the emitter, where EET is at least 2.50 eV, where the LUMO energy of the first host is higher than the HOMO energy of the emitter, where the absolute value of the difference between the HOMO energy of the emitter and the LUMO energy of the first host is ?E1, where a??E1?EET?b; and where a?0.05 eV, and b?0.60 eV.
    Type: Grant
    Filed: July 26, 2023
    Date of Patent: September 17, 2024
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chun Lin, Nicholas J. Thompson, Jerald Feldman
  • Patent number: 12096670
    Abstract: The resolution of a display apparatus having alight detection function is increased. The display apparatus includes a light-emitting device and a light-emitting and light-receiving device. The light-emitting device includes a first pixel electrode, a first light-emitting layer, and a common electrode; the light-emitting and light-receiving device includes a second pixel electrode, a second light-emitting layer, an active layer, and the common electrode; the active layer includes an organic compound; the first light-emitting layer is positioned between the first pixel electrode and the common electrode; the second light-emitting layer and the active layer are each positioned between the second pixel electrode and the common electrode; the light-emitting device has a function of emitting light of a first color; and the light-emitting and light-receiving device has a function of emitting light of a second color and a function of receiving light of the first color.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: September 17, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Daisuke Kubota, Taisuke Kamada, Ryo Hatsumi, Koji Kusunoki, Kazunori Watanabe, Susumu Kawashima
  • Patent number: 12096689
    Abstract: Provided are a compound having the nitrogen-containing six-membered aromatic ring structure with high electron transport characteristic and high thermal stability, thereof electron transport material, and an OLED using the same. That is to say, a compound having the nitrogen-containing six-membered aromatic ring structure substituted by at least three nitrogen-containing six-membered aromatic groups, and an OLED material and an electron transport material comprising the compound having the nitrogen-containing six-membered aromatic ring structure. An OLED having a pair of anode and cathode and at least one organic layer including a light-emitting layer between the pair of the electrodes, wherein any of the organic layers comprises the compound having the nitrogen-containing six-membered aromatic ring structure.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: September 17, 2024
    Assignee: FLASK CORPORATION
    Inventors: Hisahiro Sasabe, Junji Kido, Tomohiro Maruyama, Tsukasa Owada, Tomoya Kawano, Yu Saito
  • Patent number: 12089449
    Abstract: A display panel includes: a base; a pixel defining layer disposed on a side of the base; a plurality of light-emitting devices disposed on a side of the base; and at least one connection portion disposed on a side of the pixel defining layer away from the base. The pixel defining layer has a plurality of first openings. At least a portion of each light-emitting device is located in a first opening. An orthogonal projection of a connection portion on the base is located within an orthogonal projection of the pixel defining layer on the base. A surface of the connection portion away from the base has a plurality of protrusions, and the connection portion is configured to diffusely reflect external ambient light incident into the display panel.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: September 10, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haitao Huang, Chuanxiang Xu, Shi Shu, Yong Yu, Renquan Gu
  • Patent number: 12089429
    Abstract: A novel light-emitting element is provided. Alternatively, a novel light-emitting element which can achieve both high efficiency and a long lifetime is provided. The light-emitting element includes a light-emitting layer between a pair of electrodes. The light-emitting element includes a first light-emitting layer and a second light-emitting layer. The first light-emitting layer includes a fluorescent material. The second light-emitting layer includes a phosphorescent material. A difference in peak value between a first emission spectrum of light from the first light-emitting layer and a second emission spectrum of light from the second light-emitting layer is 30 nm or less.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: September 10, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Satoshi Seo
  • Patent number: 12087748
    Abstract: A display device having a pad area and a display area is provided. The display device includes: a substrate; a pad structure on the substrate in the pad area; and a display element part on the substrate in the display area. The pad structure includes a first pad pattern, a second pad pattern on the first pad pattern, and a third pad pattern on the second pad pattern, and the display element part includes a light emitting element configured to emit light in a display direction. The second pad pattern has a first area and a second area, the second pad pattern and the third pad pattern do not contact each other in the first area, and the second pad pattern and the third pad pattern contact each other in the second area.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: September 10, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jong Hwan Cha
  • Patent number: 12082437
    Abstract: A display apparatus includes an organic light emitting display panel including a thin film encapsulation layer, a first conductive layer directly on the thin film encapsulation layer, at least one inorganic layer on the thin film encapsulation layer and having a density of about 2.05 g/cm3 to about 2.4 g/cm3, and a window on the at least one inorganic layer. In the display apparatus according to embodiments of the present disclosure, the generation of bubbles may be suppressed or reduced.
    Type: Grant
    Filed: October 12, 2022
    Date of Patent: September 3, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Changok Kim, Kiho Bang, Yeoungkeol Woo, Sangwook Lee, Hyeongi Cho
  • Patent number: 12082464
    Abstract: A display device includes a substrate including a display area at which an image is displayed and a non-display area which is adjacent to the display area, and in the non-display area a common voltage transmitting line which is connected to the display area and through which a common voltage is provided to the display area, an organic insulating layer between the common voltage transmitting line and the substrate, a first opening which is in the common voltage transmitting line and exposes the organic insulating layer to outside the common voltage transmitting line and an auxiliary electrode which faces the organic insulating layer with the common voltage transmitting line therebetween, contacts the common voltage transmitting line at the first opening and covers the first opening.
    Type: Grant
    Filed: February 28, 2023
    Date of Patent: September 3, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Chun Gi You
  • Patent number: 12082498
    Abstract: The present specification relates to an organic light emitting device having high light emission efficiency. Such organic light emitting device comprises a light emitting layer provided between the cathode and the anode, and including an anthracene derivative represented by the following Chemical Formula 2, and an organic material layer provide between the cathode and the light emitting layer, and including a cyclic compound represented by the following Chemical Formula 1. wherein Ar1, Ar2, X, G1, G2, m, n, R1-R8, Ar3, Ar4, L3, and I3 are described herein.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: September 3, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Dong Uk Heo, Dong Hoon Lee, Jungoh Huh, Boonjae Jang, Min Woo Jung, Ju Young Lee