Patents Examined by Dawn L. Garrett
  • Patent number: 10361375
    Abstract: A composition formed of a mixture of a first compound and a second compound wherein the first compound has a different chemical structure than the second compound. The first compound and the second compound are both organic compounds. At least one of the first compound and the second compound contains at least one less abundant stable isotope atom. The first compound has an evaporation temperature T1 and the second compound has an evaporation temperature T2 where both T1 and T2 are between 100 to 400 ° C. and the absolute value of T1-T2 is less than 20 ° C. The first compound has a concentration C1 in said mixture and a concentration C2 in a film formed by evaporating said mixture in a high vacuum deposition tool with a chamber base pressure between 1×10?6 Torr to 1×10?9 Torr, at a 2?/sec deposition rate on a surface positioned at a predefined distance away from the mixture being evaporated; and wherein absolute value of (C1-C2)/C1 is less than 5%.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: July 23, 2019
    Assignee: Universal Display Corporation
    Inventors: Lichang Zeng, Chuanjun Xia, Scott Joseph, Walter Yeager, Mingjuan Su, Ting-Chih Wang
  • Patent number: 10355218
    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: February 17, 2017
    Date of Patent: July 16, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Tomoki Kato
  • Patent number: 10336772
    Abstract: A bicarbazole compound represented by Formula 1: [Ar1]n1-(L1)a1-[Ar2]n2??Formula 1 wherein in Formula 1, a1, Ar1, Ar2, L1, n1, and n2 are the same as described in the specification.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: July 2, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Norihito Ishii, Katsunori Shibata, Satoshi Inayama, Mitsunori Ito
  • Patent number: 10326084
    Abstract: An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which at least one kind of compound represented by the following general formula is contained in any layer of the at least one organic layer, is an organic electroluminescent element, in which the generation of dark spots during driving is inhibited: wherein Q, Ar, L, and n are as defined in the application.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: June 18, 2019
    Assignee: UDC Ireland Limited
    Inventors: Toshihiro Ise, Saki Takada
  • Patent number: 10312452
    Abstract: Provided is a novel aromatic amine derivative with specified structure. Also provided is an organic electroluminescence device having one or more organic thin-film layers including at least a luminescent layer interposed between a cathode and an anode, in which at least one of the organic thin-film layers contains the above aromatic amine derivative alone or as a component of mixture. As a result, there is provided an organic electroluminescence device that has high emission luminance and high heat resistance, excelling in high-temperature storage ability and has long life, and provided an aromatic amine derivative for realizing the organic electroluminescence device.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: June 4, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Makoto Kimura, Chishio Hosokawa, Masakazu Funahashi
  • Patent number: 10297765
    Abstract: Provided are: an aromatic amine derivative in which a terminal substituent such as a dibenzofuran ring or a dibenzothiophene ring is bonded to a nitrogen atom directly or through an arylene group or the like; an organic electroluminescence device including an organic thin film layer formed of one or more layers including a light emitting layer and interposed between a cathode and an anode in which a layer of the organic thin film layer contains the aromatic amine derivative by itself or as a component of a mixture, and the device has a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: May 21, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yumiko Mizuki, Masakazu Funahashi, Mitsunori Ito, Masahiro Kawamura
  • Patent number: 10297757
    Abstract: An organic electroluminescence device having higher performance, in particular exhibiting a better driving voltage and a better external quantum efficiency, while having an extended lifetime; and an electronic equipment provided with the organic electroluminescence device are provided. In addition, a compound for realizing the same device and equipment is provided. Specifically, a compound having a specific structure having a triphenylene skeleton; an organic electroluminescence device using the compound; and an electronic equipment provided with the organic electroluminescence device were provided.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: May 21, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahiro Kawamura, Yumiko Mizuki, Hirokatsu Ito, Tomoharu Hayama, Tasuku Haketa
  • Patent number: 10297760
    Abstract: An organic electroluminescent element comprising a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer which is arranged between the electrodes and which includes a light emitting layer, wherein the organic layer contains a compound represented by general formula (1) in at least one layer. The organic electroluminescent element has a high luminous efficiency, excellent blue color purity, and little chromaticity change due to drive deterioration. (In the formula, the two Xs either both represent an O atom or both represent an S atom, and R1-R10 each independently represents a hydrogen atom or a substituent group).
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: May 21, 2019
    Assignee: UDC IRELAND LIMITED
    Inventors: Tetsu Kitamura, Koji Takaku, Wataru Sotoyama, Yasunori Yonekuta, Toru Watanabe, Masaru Kinoshita
  • Patent number: 10290811
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer that is disposed between the first electrode and the second electrode and includes an emission layer, wherein the organic layer includes at least one pyrene-based compound represented by Formula 1 and at least one anthracene-based compound represented by Formula 2:
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: May 14, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Naoyuki Ito, Seul-Ong Kim, Youn-Sun Kim, Dong-Woo Shin, Chang-Woong Chu
  • Patent number: 10283569
    Abstract: A tandem organic light-emitting diode, an array substrate and a display device are provided. The tandem organic light-emitting diode includes an anode (10), a hole transport layer (11), a first light-emitting layer (12), a first charge generation layer (13), a second charge generation layer (14), a third charge generation layer (15), a second light-emitting layer (16), an electron transport layer (17) and a cathode (18) which are sequentially laminated, wherein the first charge generation layer (13) is an N-type bulk heterojunction, the second charge generation layer (14) is a PN junction type bulk heterojunction, and the third charge generation layer (15) is a P-type bulk heterojunction. The array substrate includes a plurality of the above tandem organic light-emitting diodes and the display device includes the above array substrate. The tandem organic light-emitting diode provided herein can be applied in a display device for reducing power consumption.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: May 7, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Wentao Bi
  • Patent number: 10283720
    Abstract: A compound of formula (I) wherein: Ar1 represents an aryl or heteroaryl group that may be unsubstituted or substituted with one or more substituents; n is 0 or 1; and Xan independently in each occurrence represents a group selected from formula (IIa) or (IIb): wherein X is O or S; R1 independently in each occurrence is H or a substituent; R2 independently in each occurrence is H or a substituent; p independently in each occurrence is 0, 1, 2, 3 or 4; q is 0, 1, 2 or 3; and * represents a bond to Ar1. Use of compounds of formula (I) as a host for phosphorescent emitters is disclosed.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: May 7, 2019
    Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company Limited
    Inventor: Florence Bourcet
  • Patent number: 10270042
    Abstract: A compound for an organic optoelectric device represented by Chemical Formula I, an organic optoelectric device including the same, and a display device are disclosed. Details of Chemical Formula I are defined in the specification.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: April 23, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hanill Lee, Dongkyu Ryu, Dong Min Kang, Eun Sun Yu, Byoungkwan Lee, Sung-Hyun Jung, Sujin Han
  • Patent number: 10263044
    Abstract: A tandem organic light-emitting diode, an array substrate and a display device are provided. The tandem organic light-emitting diode includes an anode, a hole transport layer, a first light-emitting layer, a first charge generation layer, a second charge generation layer, a third charge generation layer, a fourth charge generation layer, a second light-emitting layer, an electron transport layer and a cathode which are sequentially laminated, wherein the first charge generation layer is an N-type bulk heterojunction, the second charge generation layer and the third charge generation layer are both PN junction type bulk heterojunctions, a proportion of the P-type organic material in the second charge generation layer is greater than that of the N-type organic material, a proportion of the P-type organic material in the third charge generation layer is less than that of the N-type organic material, and the fourth charge generation layer is a P-type bulk heterojunction.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: April 16, 2019
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Wentao Bi
  • Patent number: 10256412
    Abstract: An anthracene-based compound and an organic light-emitting device including the anthracene-based compound, the anthracene-based compound being represented by Formula 1, below:
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: April 9, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-Kook Kim, Seok-Hwan Hwang, Hye-Jin Jung, Jun-Ha Park, Jong-Woo Kim, Eun-Young Lee, Jin-O Lim, Sang-Hyun Han, Eun-Jae Jeong, Kwang-Hyun Kim, Soo-Yon Kim
  • Patent number: 10249828
    Abstract: The present invention relates to organic electroluminescent devices which comprise mixtures of at least one matrix material of the formula (1) and an emitting material which has a small singlet-triplet separation.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: April 2, 2019
    Assignee: Merck Patent GmbH
    Inventors: Philipp Stoessel, Amir Hossain Parham, Christof Pflumm, Anja Jatsch, Joachim Kaiser
  • Patent number: 10249830
    Abstract: A carbazole-based compound and an organic light-emitting device including the same, wherein the carbazole-based compound is represented by Formula 1: wherein in Formula 1, at least one selected from R1 to R9 may be a group represented by Formula 2, and rings A and B are each selected from a phenyl or a naphthyl. When at least one compound represented by Formula 1 is included as a green fluorescent host in an emission layer of an organic light-emitting device, the example OLEDs may have improved efficiencies and longer lifespans compared to the organic light-emitting devices of the related art.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: April 2, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youngkook Kim, Hyejin Jung, Sanghyun Han, Seokhwan Hwang
  • Patent number: 10243152
    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, the emission layer including a first compound; and an electron transport region between the emission layer and the second electrode, the electron transport region including a second compound and a third compound, wherein the first compound is represented by Formula 1, the second compound is represented by Formula 2, and the third compound is represented by Formula 3,
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: March 26, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Donghyun Kim, Tsuyoshi Naijo, Sungsoo Bae
  • Patent number: 10230058
    Abstract: A novel compound capable of producing an organic electroluminescence (EL) device with excellent properties, an organic EL device comprising the compound, and an electronic device comprising the organic EL device are provided. A compound represented by formula (1), an organic EL device comprising the compound, an organic EL device comprising an organic thin film layer between a cathode and an anode, wherein the organic thin film layer comprises one or more layers and a light emitting layer and at least one layer of the organic thin film layer comprises the compound, and an electronic device comprising the organic EL device: wherein A, B, C, and R1 to R11 are as defined in the description.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: March 12, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota Takahashi, Tomoki Kato, Hidetsugu Ikeda
  • Patent number: 10224488
    Abstract: The present invention discloses a delayed fluorescence compound and the organic EL device employing the delayed fluorescence compound as light emitting host of emitting lay and/or an electron transporting layer, and/or a hole blocking layer, and/or a delayed fluorescence material of emitting layer for organic EL device in the present invention display good performance.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: March 5, 2019
    Inventors: Feng-Wen Yen, Wen-Feng Hsiao, Chin-Min Teng
  • Patent number: 10217944
    Abstract: Provided are a compound of Formula 1 and an organic electric element including a first electrode, a second electrode, and an organic material layer between the first electrode and the second electrode and comprising the compound, the element showing improved luminous efficiency, stability, and life span.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: February 26, 2019
    Assignee: DUK SAN NEOLUX CO., LTD.
    Inventors: Bum Sung Lee, Soung Yun Mun, DaeSung Kim, Jung Cheol Park, Gyu Min Lee, Sun-Hee Lee