Fluroescent, Phosphorescent, Or Luminescent Layer Patents (Class 428/690)
  • Patent number: 11462366
    Abstract: 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: Grant
    Filed: August 9, 2019
    Date of Patent: October 4, 2022
    Assignee: KYOCERA AVX Components Corporation
    Inventors: Miloslav Uher, Kiyofumi Aoki, Pavel Kucharczyk
  • Patent number: 11456421
    Abstract: Anthracene derivatives each having a structure including an anthracene skeleton, a phenanthrene skeleton selected from among various phenanthrene skeletons different in bonding site which is bonded to the 9-position of the anthracene skeleton and a group selected from among various aryl groups and so on which is bonded to the 10-position of the anthracene skeleton. Organic EL devices made by using the derivatives exhibit high light emission efficiency and a long life.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: September 27, 2022
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahiro Kawamura, Mitsunori Ito
  • Patent number: 11456423
    Abstract: A composition of materials including a first compound having a structure according to Formula I
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: September 27, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Lichang Zeng, Suman Layek, Pierre-Luc T. Boudreault, Zeinab Elshenawy, Gregg Kottas, Alexey Borisovich Dyatkin, Scott Joseph, Vadim Adamovich, Chuanjun Xia, Ting-Chih Wang, Walter Yeager
  • Patent number: 11456428
    Abstract: Disclosed are indolocarbazole polycyclic aromatic derivatives that can be employed in various organic layers of organic electroluminescent devices. The indolocarbazole derivatives have a boron-containing structure. Also disclosed are organic electroluminescent devices including the indolocarbazole derivatives. The organic electroluminescent devices are highly efficient and long lasting and have greatly improved luminous efficiency.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: September 27, 2022
    Assignee: SFC CO., LTD.
    Inventors: SungHoon Joo, Ji-Hwan Kim, Byung-sun Yang, Hyeon Jun Jo, Sungeun Choi, Su-jin Kim
  • Patent number: 11456398
    Abstract: An LED chip package structure and a method of manufacturing the same are provided. The method of manufacturing the LED chip package structure includes providing a phosphor film including a phosphor layer and an outer enclosing layer for enclosing the phosphor layer that includes a plurality of phosphor particles; removing the outer enclosing layer from the phosphor layer for exposing the phosphor layer; and then covering an LED chip with the phosphor layer. The LED chip package structure includes an LED chip and a phosphor layer for covering the LED chip. The phosphor layer includes a plurality of phosphor particles tightly connected with each other, and the phosphor layer has no non-phosphor material. Therefore, the LED chip can be directly covered by the phosphor layer without the outer enclosing layer, and the phosphor particle without the non-phosphor material can directly contact the LED chip.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: September 27, 2022
    Assignee: ASTI GLOBAL INC., TAIWAN
    Inventor: Chien-Shou Liao
  • Patent number: 11447473
    Abstract: The present disclosure relates to compounds of Formula (I) as useful materials for OLED's. X is C(R)2, O, S or —N(Ph); at least one of A1 and A2 is CN, cyanoaryl, or heteroaryl having at least one nitrogen atom as a ring-constituting atom; and at least one of D1, D2, D3 and D4 is diarylamino.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: September 20, 2022
    Assignee: KYULUX, INC.
    Inventors: Jorge Aguilera-Iparraguirre, Yoshitake Suzuki, Shuo-Hsien Cheng, YuSeok Yang
  • Patent number: 11450811
    Abstract: A condensed cyclic compound and an organic light-emitting device including the same, the condensed cyclic compound being represented by the following Formula 1:
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: September 20, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eunjae Jeong, Dongjun Kim, Youngkook Kim, Jongwoo Kim, Sanghyun Han
  • Patent number: 11437581
    Abstract: The present application provides a blue fluorescent material and an OLED display panel, wherein the blue fluorescent material is a tetrahedral structure formed by simultaneously connecting a tert-butyl pyrene and a charge carrier transport unit to a same carbon of cyclohexane; wherein the tert-butyl pyrene increases an external quantum efficiency of the OLED display panel, and the tetrahedral structure increases distance between activated particles and reduces a concentration quenching. The charge carrier transport unit improves a balance of the carrier transfer and alleviates a problem that the current OLED display panel has a low luminous efficiency of the blue light material.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: September 6, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Keyan Bai
  • Patent number: 11437582
    Abstract: Disclosed is an organic electroluminescent device, comprising a substrate and light emitting units formed in sequence on the substrate, characterized in that, each of the light emitting units comprises a first electrode layer (1), a light emitting layer (2) and a second electrode layer (3), the light emitting layer comprises a host material and a dye, the host material is made of materials having both electron transport capability and hole transport capability; at least one material in the host material has a CT excited triplet state energy level T1 greater than its n-? excited triplet state energy level S1, and T1-S1?0.3 eV; or, at least one material in the host material has a CT excited triplet state energy level T1 greater than its n-? excited triplet state energy level S1, and T1-S1?1 eV, with the difference between its n-? excited second triplet state energy level and its CT excited first singlet state energy level being in the range of ?0.1 eV to 0.1 eV.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: September 6, 2022
    Assignees: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD., TSINGHUA UNIVERSITY
    Inventors: Lian Duan, Dongdong Zhang, Song Liu, Jing Xie, Fei Zhao
  • Patent number: 11434253
    Abstract: Enantiopure terphenyl presenting two ortho-located chiral axes having the following structural formula (I): their process of synthesis and their use as mono or bidentate ligands for asymmetric organometallic reactions, as organocatalysts, as chiral base and as generator, with metal, of isolable chiral metallic complexes for applications in asymmetric catalysis and others.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: September 6, 2022
    Assignees: UNIVERSITE DE STRASBOURG, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Quentin Dherbassy, Joanna Wencel-Delord, Françoise Colobert, Gaspard Hedouin
  • Patent number: 11437592
    Abstract: The present invention relates to bi- and oligonuclear metal complexes and to electronic devices, especially organic electroluminescent devices, comprising these metal complexes.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: September 6, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Philipp Stoessel, Christian Ehrenreich
  • Patent number: 11430961
    Abstract: The object of the present invention is to provide an iridium complex compound emitting red light, a composition comprising the iridium complex compound and a solvent, an organic electroluminescent element which is produced using the compound or the composition and has a long driving life and an excellent electronic durability, and a display device and lighting device using the organic electroluminescent element. The present invention relates to an iridium complex compound solvent having a 2-phenyl quinazoline framework and a specific substituent.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: August 30, 2022
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Koichi Ishibashi, Kazuhiro Nagayama, Hideji Komatsu, Koichiro Iida
  • Patent number: 11424417
    Abstract: An organic electroluminescence device includes a first electrode, a second electrode on the first electrode, and an emission layer between the first electrode and the second electrode. The emission layer may include a compound including a first phenyl group that is substituted with at least one cyano group and a second phenyl group that is substituted with five substituted or unsubstituted carbazole groups, the second phenyl group being directly bonded to the first phenyl group.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: August 23, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yoshimasa Fujita, Keigo Hoshi, Yuuki Miyazaki
  • Patent number: 11417843
    Abstract: An organic electroluminescence device of an embodiment includes a first electrode and a second electrode opposite of the first electrode, and at least one organic layer between the first electrode and the second electrode, wherein the at least one organic layer includes an amine compound represented by Formula 1 below.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: August 16, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Takao Sakuma
  • Patent number: 11408096
    Abstract: Described herein is the application of centrifugal spinning to provide a flexible mechanoluminescent material composed of rare earth metal doped fibers. Rare earth metal doped fibers are formed, in one embodiment, by centrifugal spinning.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: August 9, 2022
    Assignee: The Board of Regents of the University of Texas System
    Inventors: Karen Lozano, Yuanbing Mao, Carlos Hernandez, Misael E. Martinez, Mark Anthony Ruiz, Jorge Ernesto Vidal, Jose Zuniga
  • Patent number: 11411188
    Abstract: An electroluminescent device with an improved luminous efficiency. The device includes a light emitting layer with an arylamine polymer including a structural unit (A) represented by Chemical Formula (1).
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: August 9, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Fumiaki Kato, Masashi Tsuji, Takahiro Fujiyama, Keigo Furuta, Takao Motoyama, Yusaku Konishi
  • Patent number: 11404649
    Abstract: The present invention relates to metal complexes and to electronic devices, especially organic electroluminescent devices, comprising these metal complexes. The metal complex is, for example, represented by a compound formula (1) M(L)n(L?)m, containing a substructure M(L)n of the formula (2), and where M is iridium or platinum.
    Type: Grant
    Filed: July 4, 2016
    Date of Patent: August 2, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Philipp Stoessel, Christian Ehrenreich
  • Patent number: 11398604
    Abstract: An organic electronic material containing a charge transport compound having a structural region represented by formula (I) and having a weight average molecular weight greater than 40,000. —Ar—X—Y—Z??(I) In the formula, Ar represents an arylene group or heteroarylene group of 2 to 30 carbon atoms, X represents a linking group, Y represents an aliphatic hydrocarbon group of 1 to 10 carbon atoms, and Z represents a substituted or unsubstituted polymerizable functional group.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: July 26, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Kazuyuki Kamo, Naoki Asano, Hiroshi Takaira, Iori Fukushima, Shigeaki Funyuu
  • Patent number: 11393988
    Abstract: The present invention relates to metal complexes and to electronic devices, in particular organic electroluminescent devices, comprising these metal complexes.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: July 19, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Philipp Stoessel, Nils Koenen
  • Patent number: 11393990
    Abstract: Provided is a quantum dot light-emitting device and a display apparatus including the same. The quantum dot light-emitting device comprises: an anode; a cathode; a hole transport layer disposed between the anode and the cathode; a light-emitting layer disposed between the hole transport layer and the cathode, the light-emitting layer including a quantum dot having a core-shell structure; and a buffer layer disposed between the hole transport layer and the light-emitting layer, wherein the buffer layer contains an organic compound or derivatives thereof. The external quantum efficiency and device stability are improved. an aromatic hydrocarbon compound or derivatives thereof having a functional group selected from the group consisting of a hydroxyl group (—OH), a carboxyl group (—COOH), an amino group (—NR, —NH, —NH2, where R is a C1 to C6 monovalent hydrocarbon group or derivatives thereof) and a thiol group (—SH).
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: July 19, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jaehyun Park, Somang Kim, Kyunam Kim
  • Patent number: 11380853
    Abstract: Disclosed is an organic light emitting diode including a first electrode; a second electrode facing the first electrode; and a first emitting material layer, which includes a first host, a second host and a first dopant and disposed between the first and second electrodes. The first host is represented by Formula 1, the second host may be a triazine derivative, and the first dopant may be a red, green or blue dopant.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: July 5, 2022
    Assignees: LG DISPLAY CO., LTD., HEESUNG MATERIAL CO., LTD.
    Inventors: Hye-Seung Kang, Do-Han Kim, Woo-Sam Kim, Dong-Jun Kim, Hyo-Kyun Ham, Young-Seok No
  • Patent number: 11380855
    Abstract: Novel iridium complexes containing phenylpyridine and pyridyl aza-benzo fused ligands are described. These complexes are useful as light emitters when incorporated into OLEDs.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: July 5, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Scott Beers, Chuanjun Xia, Harvey Wendt, Suman Layek
  • Patent number: 11377458
    Abstract: An organometallic compound represented by Formula 1: M(L1)n1(L2)n2(L3)n3??Formula 1 wherein in Formula 1, M, L1, L2, L3, n1, n2, and n3 are the same as defined in the specification.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: July 5, 2022
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Juhyun Kim, Wook Kim, Youngchun Kwon, Sangmo Kim, Changho Noh, Minsik Min, Sangho Park, Hyejin Bae, Wonseok Oh, Hasup Lee, Yongsik Jung, Younsuk Choi
  • Patent number: 11374180
    Abstract: Compounds are provided that comprise a ligand having a 5-substituted 2-phenylquinoline. In particular, the 2-phenylquinoline may be substituted with a cycloalkyl containing group at the 5-position. These compounds may be used in organic light emitting devices, in particular as red emitters in the emissive layer of such devices, to provide devices having improved properties.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: June 28, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chuanjun Xia, Bin Ma, David Zenan Li, Bert Alleyne, Alan Deangelis, James Fiordeliso, Vadim Adamovich
  • Patent number: 11367835
    Abstract: The present invention provides a quantum dot light emitting diode comprising i) an emitting layer of at least one semiconductor nanoparticle made from semiconductor materials selected from the group consisting of Group II-VI compounds, Group II-V compounds, Group III-VI compounds, Group III-V compounds, Group IV-VI compounds, Group I-III-VI compounds, Group II-IV-VI compounds, Group II-IV-V compounds, or any combination thereof; and ii) a polymer for hole injection or hole transport layer, comprising one or more triaryl aminium radical cations having the structure (S1).
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: June 21, 2022
    Assignees: Dow Global Technologies LLC, Rohm and Haas Electronic Materials LLC
    Inventors: Anatoliy N. Sokolov, Brian Goodfellow, Robert David Grigg, Liam P. Spencer, John W. Kramer, David D. Devore, Sukrit Mukhopadhyay, Peter Trefonas, III
  • Patent number: 11349080
    Abstract: Organic electroluminescent materials and devices are disclosed. The organic electroluminescent materials are novel benzodithiophene or its analogous structure compounds, which can be used as charge transporting materials, hole injection materials, or the like in an electroluminescent device. These novel compounds can offer excellent performance compared with existing materials, for example, to further improve the voltage, efficiency and/or lifetime of the OLEDs.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: May 31, 2022
    Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventor: Chuanjun Xia
  • Patent number: 11345686
    Abstract: Provided are: an aromatic amine derivative including a substituent A and a substituent B each represented by the formula (1) or (2) and having an arylene group bound to a carbazole structure, in which the substituent A and the substituent B include groups different from each other in the position at which the arylene group is bonded to the carbazole structure, and the substituent A and the substituent B are bonded to the same nitrogen atom or different nitrogen atoms in the molecule; an organic electroluminescent device including an organic thin-film layer formed of one or more layers including at least a light emitting layer, the organic thin-film layer being interposed between a cathode and a anode, in which at least one layer of the organic thin-film layer contains the aromatic amine derivative, and the molecules are rarely crystallized, the yield upon production of the organic electroluminescent device is improved, the driving voltage for the organic electroluminescent device is low, and the lifetime of t
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: May 31, 2022
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Tomoki Kato
  • Patent number: 11349077
    Abstract: Disclosed is an organic light emitting diode (OLED) display comprising a substrate; an organic light emitting element disposed on the substrate; an encapsulation substrate disposed on the organic light emitting element; and an adhesive layer formed on the substrate, covering the organic light emitting element, and bonding the substrate on which the organic light emitting element is formed with the encapsulation substrate.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: May 31, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung-Hyun Son, Hoon Kim
  • Patent number: 11349083
    Abstract: The present invention includes novel compounds containing heterocycles and oligomeric phenylene or aza and cyano substituted variants thereof. These compounds may be useful as host materials for phosphorescent electroluminescent devices.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: May 31, 2022
    Assignee: Universal Display Corporation
    Inventor: Peter Wolohan
  • Patent number: 11349084
    Abstract: A charge-transfer salt formed from a material comprising a repeat unit of formula (I) and an n-dopant: wherein BG is a backbone group of the repeat unit; R1 is a ionic substituent comprising at least one cationic or anionic group; n is at least 1; R2 is a non-ionic substituent; and m is 0 or a positive integer; the material further comprising a counterion balancing the charge of the cationic or anionic group.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: May 31, 2022
    Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company Limited
    Inventors: Thomas Kugler, Sheena Zuberi, Florence Bourcet
  • Patent number: 11339182
    Abstract: A compound of Formula (LA)n-M-(LC)m, wherein the ligand LA is of Formula I, and the ligand LC is selected from Formula I that is different than ligand LA, a monoanionic bidentate ligand, or a monoanionic monodentate ligand. M is a metal; and n is 1 or 2, and m is 0, 1 or 2. Ring A is a 5-membered or 6-membered heteroaryl ring, which is bonded to Ring B; Z is selected from O or S; Z1 is selected from a carbene C or N; and Z2 is selected from C or N. Moreover, two adjacent ring carbons of Ring B will form a group of formula D, wherein * represents the point of attachment to the two adjacent ring carbons, Formula D, wherein X is selected from NRN, O, S, or Se; and RN is selected from the group consisting of hydrogen, deuterium, alkyl, cycloalkyl, heteroalkyl, aryl, heteroaryl, and combinations thereof; and Y1, Y2, Y3, and Y4 are independently CRY1, CRY2, CRY3, and CRY4, respectively, or N, and Ring D has no more than two nitrogen ring atoms.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: May 24, 2022
    Assignee: Universal Display Corporation
    Inventors: Jui-Yi Tsai, Alexey Borisovich Dyatkin, Zhiqiang Ji
  • Patent number: 11342387
    Abstract: Provided is an organic light-emitting display apparatus. The organic light-emitting display apparatus includes a first substrate; an organic light-emitting device disposed on the first substrate; and a thin film comprising at least one perovskite compound represented by Formula 1 disposed on the organic light-emitting device. T the thin film is positioned in a traveling direction of light emitted from the organic light-emitting device: [A][B1nB2(1-n)][X]3??<Formula 1> A is at least one monovalent organic-cation, at least one monovalent inorganic-cation, or a combination thereof. B1 and B2 are each independently at least one divalent inorganic-cation. n is a real number satisfying 0<n?1. X is at least one monovalent anion.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: May 24, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dongchan Kim, Byoungduk Lee, Yoonhyeung Cho
  • Patent number: 11339134
    Abstract: A composition which is useful for production of a light emitting device excellent in light emission efficiency is provided. In particular, provided is a composition containing a compound represented by formula (1) and a phosphorescent compound, wherein R1 and R2 each independently represent a substituent, n1 represents an integer of 1 to 14, and Ar1 represents an arylene group or a divalent heterocyclic group, and at least one of one or more groups Ar1 is a group represented by the formula (1-A), wherein the variable groups R1A to R8A, R91A, and R92A are as defined in the specification.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: May 24, 2022
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Toshiaki Sasada, Takashi Kuragano, Yoshiaki Tsubata, Makoto Anryu, Takakazu Saito
  • Patent number: 11335858
    Abstract: Provided are an organic EL device material capable of reducing the driving voltage of an organic EL device and increasing the lifetime of the device as compared with a conventional organic EL device material, specifically an aromatic amine derivative represented by N(Ara) (Arb) (Arc), and an organic EL device using the material. [Ara is represented by the formula (II). (In the formula (II): La represents a single bond or an arylene group; R1 to R4 each represent an alkyl group, an aryl group, or the like, and R3's or R4's, or R3 and R4 may be bonded to each other to form a ring; and o represents 0 to 3 and p represents 0 to 4.) Arb is represented by the formula (III).
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: May 17, 2022
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Tomoki Kato
  • Patent number: 11335747
    Abstract: A display device includes a bank including an opening exposing a surface of a base. The bank further includes side surfaces adjacent to an upper surface. The side surfaces slope downward from the upper surface toward an opening in an organic film pattern. A plurality of fine holes is formed on the upper surface and the side surfaces, the bank may also include a plurality of inner holes.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: May 17, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myung Hwan Kim, Suk Hoon Kang, Min Jae Kim, Hee Ra Kim, Beom Soo Shin, Hong Yeon Lee, Baek Kyun Jeon
  • Patent number: 11335859
    Abstract: The present disclosure relates to a compound of Chemical Formula 1, a coating composition including the same, and an organic light emitting device including the same.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: May 17, 2022
    Inventors: Yongwook Kim, Jaechol Lee, Jaesoon Bae, Daeho Kim, Seokhee Yoon, Sungkyoung Kang, Kwanghyun Kim
  • Patent number: 11329251
    Abstract: The present disclosure relates to a method for preparing an organic film structure. The method for preparing the organic film structure may include forming a pigment mixture layer outside a region where an organic film is to be formed using a pigment liquid mixture, forming a liquid organic layer in the region where the organic film is to be formed with a first liquid organic material, and curing the pigment mixture layer and the liquid organic layer to form an indicator film and the organic film, respectively. The pigment mixture layer may include a pigment.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: May 10, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Guanyu Lu, Haiping Zhao
  • Patent number: 11325934
    Abstract: Organic luminescent materials containing tetraphenylene ligands are disclosed, which can be used as emitters in the emissive layer of an organic electroluminescent device. The organic luminescent materials is metal complexes which comprise a new series of tetraphenylene ligands. The use of these novel ligands can decrease aggregation in the solid state and improve the lifetime of device. Also disclosed are an electroluminescent device and a formulation.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: May 10, 2022
    Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventor: Chuanjun Xia
  • Patent number: 11329244
    Abstract: A light emitting device includes a first electrode, a hole transporting layer in contact with the first electrode, a second electrode, an electron transporting layer in contact with the second electrode; and an emissive layer between the hole transporting layer and the electron transporting layer. The emissive layer includes a phosphorescent emitter, a fluorescent emitter, and a host, and the phosphorescent emitter harvests electrogenerated excitons and transfers energy to the fluorescent emitter.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: May 10, 2022
    Assignee: Arizona Board of Regents on behalf of Arizona State University
    Inventors: Jian Li, Tyler Fleetham
  • Patent number: 11329189
    Abstract: The present disclosure relates to a light emitting diode that includes a charge control layer disposed between a charge transfer layer and one electrode and including polysiloxane-based material chemically bonded to a surface of the charge transfer layer and a light emitting device having the same. The charge control layer is configured to remove a surface defect of the charge transfer layer, to transport charges stably, and to reflect a part of light passing through the charge transfer layer, and thereby enhancing out-coupling efficiency. In addition, the charge control layer regulates a charge flow from the electrode to the charge transfer layer, so that charges may be injected into an emitting material layer in a balanced manner.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: May 10, 2022
    Inventors: Hye Li Min, So Mang Kim
  • Patent number: 11322691
    Abstract: The present invention includes novel compounds containing heterocycles or azaheterocycles and fused phenylene or aza and cyano substituted variants thereof. These compounds may be useful as host materials for phosphorescent electroluminescent devices.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: May 3, 2022
    Assignee: Universal Display Corporation
    Inventors: Peter Wolohan, Morgan C. MacInnis
  • Patent number: 11322548
    Abstract: A top emitting OLED device for improving viewing angle characteristics, comprising a substrate, a first electrode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, a second electrode and a light output coupling layer sequentially stacked on the substrate, wherein the second electrode has a light transmittance no less than 25%, and the hole injection layer has a refractive index no less than 1.8.
    Type: Grant
    Filed: November 28, 2019
    Date of Patent: May 3, 2022
    Assignees: KUNSHAN NEW FLAT PANEL DISPLAY TECHNOLOGY CENTER CO., LTD., BEIJING VISIONOX TECHNOLOGY CO., LTD.
    Inventors: Weiwei Li, Song Liu, Lin He
  • Patent number: 11322705
    Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; and an electron transport region between the second electrode and the emission layer, wherein the emission layer includes a first host and a second host, the first host includes a first compound represented by Formula 1, the second host includes at least one selected from a second compound represented by Formula 2 and a third compound represented by Formula 3, and the hole transport region includes an amine-based compound represented by Formula 40:
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: May 3, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myeong-Suk Kim, Sung-Wook Kim, Hwan-Hee Cho, Chang-Woong Chu
  • Patent number: 11312820
    Abstract: In an embodiment, a composition is provided that includes an indenofluorene moiety; an alkyl radical, an aryl radical, or a heteroaryl radical chemically bound to the indenofluorene moiety; and an electron donor moiety bound to the indenofluorene moiety. In another embodiment, a device is provided that includes compositions described herein. In another embodiment, a method of forming a donor-acceptor small molecule or a donor-acceptor copolymer is provided that includes forming an indenofluorene moiety; forming an electron donor moiety; and reacting the indenofluorene moiety with the electron donor moiety in a cross-coupling reaction.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: April 26, 2022
    Assignee: International Business Machines Corporation
    Inventors: Brandon M. Kobilka, Jacob T. Porter, Scott B. King, Jason T. Wertz
  • Patent number: 11309493
    Abstract: The present invention relates to formulations comprising at least one organic semiconductor and at least one organic solvent, characterized in that the formulation contains less than 10,000 particles per liter formulation having an average size in the range from 0.1 to 20 ?m, to their use for the preparation of electronic devices, to methods for preparing electronic devices using the formulations of the present invention, and to electronic devices prepared from such methods and formulations.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: April 19, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Edgar Boehm, Anja Gerhard, Dietmar Kunkel, Volker Hilarius, Masahiro Uchida, Takuya Sonoyama, Shuichi Takei, Koji Imamura
  • Patent number: 11302870
    Abstract: The present application relates to fluoranthenylamine compounds of a formula (I). These compounds are suitable for use in electronic devices, The present application further relates to processes for preparing the compounds mentioned, and to electronic devices comprising the compounds mentioned.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: April 12, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Amir Parham, Dominik Joosten, Aurélie Ludemann, Tobias Grossmann, Jonas Kroeber
  • Patent number: 11299669
    Abstract: The invention described in the present specification relates to a color conversion film including a resin matrix; and an organic fluorescent substance dispersed in the resin matrix, and absorbing blue or green light and emitting light having a wavelength different from the absorbing light, wherein the resin matrix includes a thermoplastic resin, and the color conversion film has a light emission peak with a FWHM of 60 nm or less, quantum efficiency of 80% or greater and an absorption coefficient of 30,000 M?1cm?1 or greater at a maximum absorption wavelength when irradiating light having a light emission peak at 450 nm, a FWHM of 40 nm or less and monomodal light emission intensity distribution, a method for preparing the same, and a backlight unit including the color conversion film.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: April 12, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Dong Mok Shin, Sehwan Son, Hoyong Lee, Byeong In Ahn, Du Hyeon Shin, Nari Kim, Ji Ho Kim, Joo Yeon Seo
  • Patent number: 11296304
    Abstract: The present invention provides an organic light-emitting element, comprising a substrate, a first electrode, more than one organic layer film comprising a light-emitting layer, and a second electrode. The light-emitting element further comprises a cover layer. The cover layer is located on the second electrode, and comprises a high refractive layer and a low refractive layer. A material for the low refractive layer of the cover layer is a boron complex organic small molecular compound. The organic light-emitting element provided by the present invention can achieve high light-emitting efficiency and color reproducibility. The organic light-emitting element of the present invention can be used for an organic EL display, a backlight source of a liquid crystal display, illumination, a sign board, an identification lamp, etc.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: April 5, 2022
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Peng Wang, Guangnan Jin, Takeshi Ikeda, Jincai Li, Daisaku Tanaka
  • Patent number: 11283030
    Abstract: A phosphorescent compound of formula (I): wherein: M is a transition metal; C1 is a carbon atom forming a metal-carbene bond with M; A is a saturated bridged bicyclic or saturated bridged tricyclic group consisting of one nitrogen atom and 6-12 carbon atoms; either: (i) X1 is a bridgehead carbon atom of the bridged bicyclic or bridged tricyclic group and X2 is NR1 wherein R1 is a substituent, or (ii) X1 is N and X2 is a bridgehead group of formula CR6 wherein R6 is H or a substituent; Ar1 is a C6-20 aromatic group or a 5-20 membered heteroaromatic group; L in each occurrence is independently a mono- or poly-dentate ligand other than a ligand of formula A-Ar1; x is at least 1; and y is 0 or a positive integer. The compound of formula (I) may be used as a blue light-emitting material in a white organic light-emitting device.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: March 22, 2022
    Assignee: Sumitomo Chemical Company Limited
    Inventors: James Lee, Martin Humphries, William Tarran, Nazrul Islam
  • Patent number: 11276823
    Abstract: The present invention relates to spirobifluorene compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: March 15, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Elvira Montenegro, Amir Hossain Parham, Philipp Stoessel, Teresa Mujica-Fernaud, Frank Voges, Arne Buesing