Patents Examined by Gregory D Clark
  • 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: 11362287
    Abstract: A novel class of gold(III) compounds containing cyclometalated tridentate ligand and one aryl auxiliary ligand, both coordinated to a gold(III) metal center. (a) X is nitrogen or carbon; (b) Y and Z are independently nitrogen or carbon; (c) A is cyclic structure (derivative) of pyridine, quinoline, isoquinoline or phenyl group; (d) B and C are independently cyclic structures (derivatives) of pyridine, quinoline, isoquinoline or phenyl groups; (e) B and C can be identical or non-identical, with the proviso that both B and C are not 4-tert-butylbenzene; (f) R? is a substituted carbon, nitrogen, oxygen or sulfur donor ligand attached to the gold atom; (g) n is zero, a positive integer or a negative integer. wherein R? is selected from, but not limited to, aryl, substituted aryl, heteroaryl, substituted heteroaryl, heterocyclic aryl and substituted heterocyclic aryl, alkoxy, aryloxy, amide, thiolate, sulfonate, phosphide, fluoride, chloride, bromide, iodide, cyanate, thiocyanate or cyanide.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: June 14, 2022
    Assignee: THE UNIVERSITY OF HONG KONG
    Inventors: Vivian Wing-Wah Yam, Man Chung Tang, Mei Yee Chan, Chin Ho Lee, Lok Kwan Li
  • Patent number: 11349086
    Abstract: A compound of formula (I) or (III) (Formulae (I), (III)) wherein: one Y is a substituent R1 bound directly to the fluorene unit of formula (I) by an sp3-hybridised carbon atom; the other Y is an aryl or heteroaryl group Ar1 that may be unsubstituted or substituted with one or more substituents; Ar2 is an arylene or heteroarylene group; R2 is a substituent; b is 0, 1, 2, 3 or 4; c is 0, 1, 2 or 3; and X is a group of formula (II): (Formula (II)) wherein Z is O or S; R3 independently in each occurrence is a substituent; each x is independently 0, 1, 2 or 3; and * is a bond to the fluorene unit of formula (I). The compounds may be used as host materials for phosphorescent dopants in organic light-emitting devices.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: May 31, 2022
    Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company Limited
    Inventors: Kiran Kamtekar, William Tarran, Martin Humphries, Florence Bourcet
  • Patent number: 11349078
    Abstract: Provided are a composition for forming an organic light-emitting device, a method of preparing an organic light-emitting device, and an organic light-emitting device. The method of preparing an organic light-emitting device includes: forming an organic layer including an emission layer on a first electrode, wherein the forming of the organic layer includes performing a solution process using a composition for forming an organic light-emitting device, the composition for forming an organic light-emitting device includes n kinds of solvent, a solvent (Sv1) having the highest boiling point among the n kinds of solvent and a solvent (Sv2) having the second highest boiling point among the n kinds of solvent satisfy Equation 1, n is an integer from 2 to 10, and the solvent (Sv1) having the highest boiling point among the n kinds of solvent is a compound represented by Formula 1.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: May 31, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dukki Kim, Jaekook Ha, Sehun Kim, Dongwoo Shin, Donghoon Kwak, Junwoo Park
  • 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: 11349082
    Abstract: The present disclosure relates to a compound, an organic electroluminescent device, and a display device. The compound has a structure of formula (I) X is selected from a C atom, a Si atom, a B atom, or a P atom; Y1 to Y4 are each independently selected from a C atom or an N atom; A and B are each independently selected from any one or more of a substituted or unsubstituted C6-C40 aryl group and a substituted or unsubstituted C4-C40 heteroaryl group; R1 is selected from carbonyl, C1-C9 alkyl, a substituted or unsubstituted C6-C18 aryl group, and a substituted or unsubstituted C4-C30 heteroaryl group; and R2 and R3 are each independently selected from any one of a C1-C9 alkyl group, a substituted or unsubstituted C6-C18 aryl group, and a substituted or unsubstituted C4-C30 heteroaryl group, and n is selected from 0 or 1.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: May 31, 2022
    Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Wenpeng Dai, Jinghua Niu, Wei Gao, Lei Zhang, Wenjing Xiao
  • Patent number: 11348974
    Abstract: A light-emitting device includes: a plurality of first electrodes respectively in a first sub-pixel, a second sub-pixel, and a third sub-pixel; a second electrode facing the plurality of first electrodes; a first emission layer in the first sub-pixel and configured to emit a first color light; a second emission layer in the second sub-pixel and configured to emit a second color light; a first layer that is integrated with the first sub-pixel, the second sub-pixel, and the third sub-pixel; a first auxiliary layer between the first layer and the first emission layer; and a first intermediate layer between the first auxiliary layer and the first emission layer. The first emission layer includes a first host and a first dopant. The first dopant is configured to emit light having a full width at half maximum (FWHM) of about 35 nm or more.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: May 31, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Pyungeun Jeon, Ilsoo Oh, Bora Lee, Yujin Kang, Juwon Lee
  • Patent number: 11349081
    Abstract: New azaindolocarbazole compounds are disclosed, which can be used as hosts in an organic electroluminescent device. Compared to existing host materials, the compounds can effectively modulate the charge transporting properties in host materials and give OLEDs better performance. An electroluminescent device and a formulation are also disclosed.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: May 31, 2022
    Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventor: Chuanjun Xia
  • Patent number: 11342507
    Abstract: The present specification relates to a coating composition comprising a compound, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: May 24, 2022
    Inventors: Minho Hwang, Esder Kang, Hwakyung Kim, Jaesoon Bae, Hyeonah Shin, Soyoung Yu, Jaechol Lee, Sejin Jung
  • Patent number: 11342515
    Abstract: Ligands with fused spirocyclic substitutions and metal complexes formed with such ligands and having improved performance in OLED applications are disclosed.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: May 24, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Lichang Zeng, Suman Layek, Chuanjun Xia, Zhiqiang Ji, Edward Barron
  • Patent number: 11342528
    Abstract: An organic electroluminescent device includes, in order, a first electrode, a light-emitting layer, a resistive layer, and a second electrode. The resistive layer has a specific resistance within a range of 1×104 ?·cm or greater and 5×106 ?·m or less and includes a mixed material including two or more of zinc oxide, gallium oxide, and silicon dioxide and having a composition ratio within a predetermined range.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: May 24, 2022
    Assignee: JOLED INC.
    Inventors: Shina Kirita, Takayuki Shimamura, Naoto Oda
  • Patent number: 11335876
    Abstract: Disclosed are an organic light emitting diode, an organic light emitting diode display device and a display device for vehicles using the same. The organic light emitting diode may achieve process simplification and reduction in material costs while maintaining high luminance, through structure change.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: May 17, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Han-Byeol Seok, Kwan-Soo Kim, Eun-Jung Park, Ki-Min Lim, Seung-Kwang Roh, Byung-Soo Kim, Sang-Kyoung Moon, Dong-Il Choi
  • Patent number: 11335857
    Abstract: Provided are an organic electroluminescence device and a display device including the same. The organic electroluminescence device includes a polycyclic compound represented by Formula 1 in a hole blocking layer and at least one of a first light emitting layer and an electron transport layer, wherein each of Y1 to Y5 and Y11 to Y15 is independently CH or N, at least four of Y1 to Y5 are CH, at least four of Y11 to Y15 are CH, and R1, R2, and R3 are as disclosed in the description.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: May 17, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seulong Kim, Pilgu Kang, Jiyoung Kwon, Taekyung Kim, Soon-Chul Chang
  • Patent number: 11329257
    Abstract: A display device includes: a substrate; an organic light-emitting diode positioned above the substrate; and a thin film encapsulation layer disposed on the organic light-emitting diode. The thin film encapsulation layer includes: at least one inorganic layer; and at least one organic layer disposed on the at least one inorganic layer. The at least one organic layer has a refractive index of about 1.66 or greater.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: May 10, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yongchan Ju, Yisu Kim, Eungseok Park, Wonmin Yun, Byoungduk Lee, Yoonhyeung Cho
  • Patent number: 11322710
    Abstract: The present invention relates to an electronic device comprising between a first electrode and a second electrode at least one first hole transport layer, wherein the first hole transport layer comprises (i) at least one first hole transport matrix compound consisting of covalently bound atoms and (ii) at least one electrical p-dopant selected from metal salts and from electrically neutral metal complexes comprising a metal cation and a at least one anion and/or at least one anionic ligand consisting of at least 4 covalently bound atoms, wherein the metal cation of the electrical p-dopant is selected from alkali metals; alkaline earth metals, Pb, Mn, Fe, Co, Ni, Zn, Cd; rare earth metals in oxidation state (II) or (III); Al, Ga, In; and from Sn, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W in oxidation state (IV) or less; provided that a) p-dopants comprising anion or anionic ligand having generic formula (Ia) or (Ib).
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: May 3, 2022
    Assignee: Novaled GmbH
    Inventors: Ulrich Heggemann, Markus Hummert, Thomas Rosenow, Mauro Furno
  • Patent number: 11316118
    Abstract: A compound of Formula (I) D-S1-A-S2—B1,??Formula (I) wherein: A represents a conjugated chain of from 1 to 20 aromatic moieties independently selected from the group consisting of aromatic moieties, heteroaromatic moieties and E moieties, provided that A includes at least one E moiety, wherein E is selected from the group consisting of: E1 being a dibenzo[d,b]silole moiety of the structure: E2 being a moiety of the structure: and E3 being a moiety of the structure: wherein E is connected in the conjugated chain of A and optionally to S1 or to S2 through covalent bonds at Y and Z; wherein each R is independently selected from the group consisting of straight chain or branched C1-C20 alkyl and C2-C20 alkenyl, optionally wherein from 1 to 5 CH2 groups are each replaced by an oxygen, provided that no acetal, ketal, peroxide or vinyl ether is present in the R group, and optionally wherein each H bonded to a C in each R group may independently be replaced by a halogen; wherein the
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: April 26, 2022
    Assignee: Lomox Limited
    Inventors: Luke William Judd, Matthew P. Aldred
  • Patent number: 11316125
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer comprises an emission layer, a mixed layer, and a hole transport region, the hole transport region is between the emission layer and the first electrode, the mixed layer is between the hole transport region and the emission layer, and comprises a first compound and a second compound, the first compound comprises an anthracene-based compound represented by Formula 1, and the second compound comprises an amine-based compound represented by Formula 2. A display apparatus includes the organic light-emitting device.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: April 26, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sungwook Kim, Seulong Kim, Sungsoo Bae, Tsuyoshi Naijo, Jaeweon Hur, Hyein Jeong
  • Patent number: 11306060
    Abstract: The present specification relates to a compound and an organic electronic device comprising the same.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: April 19, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Yongbum Cha, Sang Duk Suh, Jungbum Kim, Sung Kil Hong
  • Patent number: 11309511
    Abstract: An organic electroluminescence device includes a first electrode, a hole transport region, an emission layer including a nitrogen-containing compound, an electron transport region, and a second electrode. The nitrogen-containing compound may include a heterocyclic moiety and two carbazole moieties, the heterocyclic moiety may be a substituted pyridine, a substituted pyrimidine, or a substituted 1,3,5-triazine, each of two carbons among carbons of 2-, 4-, and 6-positions of the substituted pyridine, the substituted pyrimidine, or the substituted 1,3,5-triazine may be substituted with a phenylene group, a carbon in an ortho position of each phenylene group may be linked with a nitrogen at a 9-position of one of the carbazole moieties, and the remaining carbon among the carbons of the 2-, 4-, and 6-positions may be substituted with a substituted or unsubstituted aromatic group, and the carbazole moieties may be linked together by a linker.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: April 19, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Naoya Sakamoto
  • Patent number: 11302875
    Abstract: Disclosed is an organic electroluminescence device including an anode, a cathode, at least two light-emission sub-stacks and a charge generation layer. The charge generation layer is located between the light-emission sub-stacks, and the charge generation layer includes a stack of a n-type charge generation layer and a p-type charge generation layer. The n-type charge generation layer includes a Compound of Formula 1 and a Compound of Formula 2. The present organic electroluminescence device improves injection and transport properties of electrons to lower driving voltage of the device, improves efficiency and lifespan of the device, and has excellent thermal/electrical stability for long driving duration of the device.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: April 12, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jicheol Shin, Seonkeun Yoo, Sangbeom Kim, Soyoung Jang, Heejun Park