Fluroescent, Phosphorescent, Or Luminescent Layer Patents (Class 428/690)
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Patent number: 11177443Abstract: A light emitting diode according to the present invention comprises: a first electrode; an organic layer provided on the first electrode; a light emitting layer provided on the organic layer; an electron transport layer provided on the light emitting layer; and a second electrode provided on the electron transport layer, wherein the organic layer includes a compound represented by Chemical Formula 1. In Chemical Formula 1, below, Ar1, Ar2, Ar3, L1, L2, L3 and Y are as defined in the present specification.Type: GrantFiled: August 20, 2016Date of Patent: November 16, 2021Assignee: LMS CO., LTDInventors: Jeong Og Choi, Joon Ho Jung
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Patent number: 11177441Abstract: Provided are an organic compound represented by the following Chemical Formula 1 and having a molecular weight of greater than or equal to 538 and less than 750, a composition for an organic optoelectronic device including the organic compound, an organic optoelectric device including the organic compound or the composition, and a display device including the organic optoelectronic device. In Chemical Formula 1, Z, R1 to R11, n1 to n4 are the same as defined in the specification.Type: GrantFiled: December 23, 2014Date of Patent: November 16, 2021Assignee: Samsung SDI Co., Ltd.Inventors: Su-Jin Han, Han-ILL Lee, Soo-Hyun Min, Eun-Sun Yu, Ho-Kuk Jung, Pyeong-Seok Cho
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Patent number: 11177446Abstract: Novel silicon containing compounds for organic electroluminescent devices is disclosed. The compounds can be used as emitters in the emissive layer of the organic electroluminescent device. More specifically, these compounds can emit blue light. The devices incorporating these compounds as emitters show unexpecting higher efficiency and longer lifetime than prior art compounds. Also disclosed is an organic electroluminescent device and a formulation.Type: GrantFiled: September 3, 2018Date of Patent: November 16, 2021Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventor: Chuanjun Xia
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Patent number: 11171296Abstract: Provided are an organometallic compound, an organic light-emitting device including the organometallic compound, and an electronic apparatus including the organic light-emitting device. The 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 and including an emission layer, wherein the organic layer comprises at least one of the organometallic compound represented by Formula 1.Type: GrantFiled: November 30, 2018Date of Patent: November 9, 2021Assignee: Samsung Display Co., Ltd.Inventors: Munki Sim, Soobyung Ko, Sungbum Kim, Junha Park, Heechoon Ahn, Hyoyoung Lee, Mina Jeon, Mieun Jun, Junghoon Han, Youngkook Kim, Seokhwan Hwang
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Patent number: 11169066Abstract: The present application relates to a method for quantitative analysis of a polymer structure. Specifically, the method may be carried out through steps of measuring rheological properties and/or molecular weight distribution of the arbitrarily selected polymer, setting a random value for the selected polymer and then predicting the rheological property and/or the molecular weight distribution of the polymer from the random value, and comparing the measured value with the predicted value to determine the value of the structural parameter of the polymer.Type: GrantFiled: March 30, 2017Date of Patent: November 9, 2021Inventors: Sung Hyun Park, Chae Gyu Lee, Ye Hoon Im, Yu Taek Sung, Myung Han Lee, Oh Joo Kwon, Heon Yong Kwon, Dae Sik Hong
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Patent number: 11165025Abstract: The present application relates to a compound and an organic electronic device including the same.Type: GrantFiled: November 17, 2016Date of Patent: November 2, 2021Inventors: Sang Duk Suh, Yongbum Cha, Sung Kil Hong, Dongheon Kim
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Patent number: 11158810Abstract: The present specification provides a multicyclic compound of Chemical Formula 1, and an organic light emitting device including the same.Type: GrantFiled: October 12, 2016Date of Patent: October 26, 2021Inventors: Wanpyo Hong, Hyoungcheul Kim, Yun Hwan Kim, Heungwoo Choi, Jun Yun
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Patent number: 11158832Abstract: Provided is a light-emitting element which includes a first electrode, a second electrode over the first electrode, and first and second light-emitting layers therebetween. The first light-emitting layer contains a first host material and a first light-emitting material, and the second light-emitting layer contains a second host material and a second light-emitting material. The first light-emitting material is a fluorescent material, and the second light-emitting material is a phosphorescent material. The level of the lowest triplet excited state (T1 level) of the first light-emitting material is higher than the T1 level of the first host material. A light-emitting device, an electronic device, and a lighting device including the light-emitting element are further provided.Type: GrantFiled: May 20, 2020Date of Patent: October 26, 2021Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takahiro Ishisone, Satoshi Seo, Yusuke Nonaka, Nobuharu Ohsawa
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Patent number: 11158821Abstract: The present application provides an organic electroluminescent device and a manufacturing method thereof. A host material of a light-emitting layer of the organic electroluminescent device is co-evaporated by a donor host material and a acceptor host material in a same evaporation source to form an exciplex, which solves the technical problems such as low luminous efficiency, short service life or complicated operation process of the organic electroluminescent device in the prior art. The organic electroluminescent device according to the present application includes an anode, a cathode and a light-emitting layer disposed between the anode and the cathode, a host material of the light-emitting layer is formed by premixing a donor host material and a acceptor host material, the donor host material and the acceptor host material are co-evaporated in a same evaporation source to form an exciplex, and the host material is doped with a guest material.Type: GrantFiled: January 11, 2019Date of Patent: October 26, 2021Assignees: Kunshan New Flat Panel Display Technology Center Co., Ltd., KunShan Go-Visionox Opto-Electronics Co., LtdInventors: Weiwei Li, Fei Zhao, Chao Min, Song Liu, Wei Ao, Yucheng Liu
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Patent number: 11158812Abstract: A highly efficient light-emitting element capable of providing a plurality of emission colors is provided, which does not easily deteriorate and can minimize a decrease in external quantum efficiency even when a light-emitting layer has a stacked structure. A light-emitting device, an electronic device, and a lighting device which have low power consumption and long lifetime are provided. A light-emitting element includes a plurality of light-emitting layers stacked between a pair of electrodes. The light-emitting layers each contain a host material and a guest material. The guest materials of the light-emitting layers are substances which have different HOMO levels but have substantially the same LUMO levels and emit light of different colors. A light-emitting device, an electronic device, and a lighting device are fabricated using the light-emitting element.Type: GrantFiled: March 8, 2019Date of Patent: October 26, 2021Inventors: Hiroki Suzuki, Satoshi Seo, Sachiko Kawakami, Tsunenori Suzuki
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Patent number: 11158820Abstract: The present invention includes compounds containing a combination of heterocyclic benzimidazole and xanthene, thioxanthene or spiro variants thereof. These compounds may be useful as host materials for phosphorescent electroluminescent devices.Type: GrantFiled: February 28, 2018Date of Patent: October 26, 2021Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Peter Wolohan, Jerald Feldman
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Patent number: 11158811Abstract: In the organic electroluminescent device having at least an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer and a cathode in this order, the hole injection layer includes an arylamine compound of the following general formula (1) and an electron acceptor. In the formula, Ar1 to Ar4 may be the same or different, and represent a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group.Type: GrantFiled: December 1, 2015Date of Patent: October 26, 2021Assignees: Hodogaya Chemical Co., Ltd., SFC Co., Ltd.Inventors: Shuichi Hayashi, Naoaki Kabasawa, Daizou Kanda, Shunji Mochizuki, Soon-wook Cha, Sang-woo Park, Ju-man Song, Kyung-seok Jeon
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Patent number: 11152579Abstract: A compound having a formula useful as a phosphorescent emitter in organic light emitting devices is disclosed.Type: GrantFiled: November 29, 2017Date of Patent: October 19, 2021Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Hsiao-Fan Chen, Jason Brooks
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Patent number: 11145831Abstract: A novel compound having the formula Os(L)n is disclosed, wherein Os is osmium(IV) metal, L is a ligand coordinating to the Os atom, and n is an integer from 1 to 6, wherein each L can be same or different, wherein at least one L is a multidentate ligand, and wherein the compound is neutral.Type: GrantFiled: October 15, 2020Date of Patent: October 12, 2021Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Jui-Yi Tsai, Chuanjun Xia, Miguel A. Esteruelas
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Patent number: 11145827Abstract: To provide a light-emitting element with high emission efficiency and low driving voltage. The light-emitting element includes a guest material and a host material. A LUMO level of the host material is higher than a LUMO level of the host material, and a HOMO level of the guest material is lower than a HOMO level of the host material. The guest material has a function of converting triplet excitation energy into light emission. The difference between a singlet excitation energy level and a triplet excitation energy level of the host material is greater than 0 eV and less than or equal to 0.2 eV. The energy difference between the LUMO level and the HOMO level of the host material is larger than or equal to light emission energy of the guest material.Type: GrantFiled: February 11, 2019Date of Patent: October 12, 2021Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takeyoshi Watabe, Satoshi Seo, Satomi Mitsumori
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Patent number: 11139443Abstract: The present invention discloses cyclometalated iridium compounds wherein at least one of the monoionic ligands is substituted with an aromatic group at the ortho position of Ir-carbon bond. The compounds may be useful in organic electroluminescence devices.Type: GrantFiled: March 8, 2018Date of Patent: October 5, 2021Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Zhiqiang Ji, Jui-Yi Tsai
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Patent number: 11139446Abstract: The present invention is directed to an organic light emitting diode (100) comprising: at least one anode electrode (120); at least one emission layer (150), wherein the emission layer comprises at least one emitter dopant that emits visible light at operation of the OLED (100); an electron transport layer stack (160) of at least two electron transport layers (161/162), and wherein a) the first electron transport layer (161) comprises i) a first organic aromatic matrix compound having a MW of about ?400 to about ?1000 and a dipole moment of about ?0 Debye and about ?2.5 Debye, wherein the first electron transport layer (161) is free of a polar organic aromatic phosphine compound; and b) the second electron transport layer (162) comprises two organic aromatic matrix compounds, which are a mixture of: i) the first organic aromatic matrix compound; and ii) a polar organic aromatic phosphine compound having a MW of about ?400 to about ?1000, and a dipole moment of about >2.Type: GrantFiled: February 16, 2017Date of Patent: October 5, 2021Assignee: Novaled GmbHInventors: Jerome Ganier, Carsten Rothe, Volodymyr Senkovskyy
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Patent number: 11133469Abstract: A compound for an organic optoelectronic device represented by Chemical Formula 1 and an organic optoelectronic device including the same are provided. In Chemical Formula 1, R1 to R5 are independently hydrogen, deuterium, —NH2, a substituted or unsubstituted C1 to C30 alkylamine group, a substituted or unsubstituted C26 to C30 arylamine group, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, or a combination thereof, at least one of R2, R4, and R5 is a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C6 to C30 arylamine group, or a substituted or unsubstituted C2 to C30 heteroaryl group, each of a, c, d, e, and f is an integer of 1 to 4, and b is an integer of 1 or 2.Type: GrantFiled: July 6, 2017Date of Patent: September 28, 2021Assignee: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITYInventors: Jong Wook Park, Hayoon Lee
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Patent number: 11127906Abstract: Novel phosphorescent metal complexes containing ligands having the Formula I: bearing either a naphthalene or other fused heterocycle moieties such as benzofuran and benzothiophene useful as emitters in OLEDs and improve the device efficiency and the FWHM of the emission are disclosed.Type: GrantFiled: April 4, 2019Date of Patent: September 21, 2021Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Pierre-Luc T. Boudreault, Mingjuan Su, Harvey Wendt, Scott Joseph
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Patent number: 11121327Abstract: The invention relates to polycondensed lactam compounds as materials for use in electronic devices, and electronic devices, in particular organic electroluminescent devices, containing said materials.Type: GrantFiled: June 3, 2014Date of Patent: September 14, 2021Assignee: Merck Patent GmbHInventors: Amir Hossain Parham, Christof Pflumm, Thomas Eberle, Anja Jatsch, Elvira Montenegro, Jonas Valentin Kroeber, Rouven Linge
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Patent number: 11117857Abstract: A compound represented by formula (1) provides a high performance organic electroluminescence device and a novel material for realizing such an organic electroluminescence device: wherein R1 to R6, a to f, L1 to L3, and Ar are as defined in the description.Type: GrantFiled: August 1, 2016Date of Patent: September 14, 2021Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Tomoki Kato, Taro Yamaki, Masahiro Kawamura, Hirokatsu Ito
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Patent number: 11121324Abstract: Disclosed are electrically conductive polymer compositions, and their use in organic electronic devices. The electrically conductive polymer compositions include an intrinsically electrically conductive polymer having Formula II: where Q, R, R?, R?, m, n, and o are defined in the present disclosure.Type: GrantFiled: May 25, 2017Date of Patent: September 14, 2021Inventors: Nora Sabina Radu, Arjan Zoombelt
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Patent number: 11114625Abstract: An organic light-emitting device includes a first electrode; a second electrode; an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, and an electron transport region between the emission layer and the second electrode. The emission layer includes a first compound represented by Formula 1 and a second compound represented by any one of Formulae 2-1 to 2-5. The electron transport region includes a third compound represented by Formula 7. The organic light-emitting device may have low driving voltage, high efficiency, and a long lifespan.Type: GrantFiled: July 23, 2015Date of Patent: September 7, 2021Assignee: Samsung Display Co., Ltd.Inventors: Hwan-Hee Cho, Myeong-Suk Kim, Sung-Wook Kim
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Patent number: 11111572Abstract: A vapor deposition mask includes a frame and a metal film supported by the frame, wherein the metal film includes a mask region arranged with a plurality of pixel opening parts corresponding to a display region of a display device, and an alignment region arranged in a periphery of the mask region, the alignment region includes a first opening part and a plurality of second opening parts arranged in a periphery of the first opening part, and a maximum width of the second opening part is smaller than a maximum width of the first opening part.Type: GrantFiled: November 25, 2019Date of Patent: September 7, 2021Assignee: Japan Display Inc.Inventors: Noriyoshi Kanda, Takeshi Ookawara, Mitsugu Tamekawa
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Patent number: 11107992Abstract: A compound of the formula, plus devices incorporating this compound, and a method of marking such devices: wherein: A represents a phenyl group, a naphthyl group, a biphenyl group or two phenyl groups linked by a C1-C8 alkyl chain; B1 and B2 in each occurrence are independently selected side chains of the structure —(Y1)n-L-(Y2)m—X wherein: Y1 and Y2 in each occurrence are independently selected from O, CO2— and CH2O, m and n in each occurrence are independently selected from 0 or 1; L in each occurrence is a C2-C14 straight chain alkyl group; and X in each occurrence is an independently selected cross linkable group; C is a side chain of the structure —(Z1)p-M-(Z2)q-E wherein: Z1 and Z2 are independently selected from O, CO2— and CH2O, p and q in each occurrence are independently selected from 0 or 1; M is a C1-C14 straight chain alkyl group; and E comprises a charge transport group; D is a side chain of the structure —(W1)r—N—(W2)s—F wherein: W1 and W2 are independently selected from O, CO2— andType: GrantFiled: October 13, 2016Date of Patent: August 31, 2021Assignee: Lomox LimitedInventors: Matthew P. Aldred, Luke William Judd, Clare Foden
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Patent number: 11098019Abstract: Fluorene derivatives that are connected in one or more of the 1-, 1?-, 4-, or 4?-positions in any combination to a carbon atom of a diaryl substituted triazinyl or pyrimidinyl derivative. The fluorene derivatives are not spirobifluorene derivatives. The compounds are suitable for use in electronic devices, in particular organic electroluminescent devices, comprising these compounds. In some embodiments, the compounds are used as matrix materials for phosphorescent or fluorescent emitters as well as a hole-blocking or an electron-transport layer.Type: GrantFiled: July 1, 2016Date of Patent: August 24, 2021Assignee: Merck Patent GmbHInventors: Anja Jatsch, Amir Hossain Parham, Thomas Eberle, Tobias Grossmann, Jonas Valentin Kroeber
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Patent number: 11088340Abstract: To provide a display device including a light emitting element layer including an anode electrode, a light emissive layer formed on the anode electrode, and a cathode electrode formed on the light emissive layer, and a bank formed on the lower electrode and having an opening, in which the lower electrode is partially exposed, wherein the light emissive layer includes a p-doped hole transport layer containing p-dopant, and the p-doped hole transport layer contains a larger amount of p-dopant in an area close to an end portion of the opening of the bank than the amount of p-dopant contained in other areas.Type: GrantFiled: March 13, 2018Date of Patent: August 10, 2021Assignee: Japan Display Inc.Inventor: Hironori Toyoda
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Patent number: 11088237Abstract: A self-light emitting display device comprises a circuit board including a driving thin-film transistor; a cathode; an organic film disposed between the circuit board and the cathode; an anode disposed between the circuit board and the organic film; and a color filter disposed between the circuit board and the anode and including a first color filter unit, a second color filter unit, and a third color filter unit; wherein the third color filter unit has a portion disposed between the first color filter unit and the second color filter unit, and wherein the third color filter unit is thicker than the first color filter unit and the second color filter unit.Type: GrantFiled: September 28, 2019Date of Patent: August 10, 2021Assignee: LG DISPLAY CO., LTD.Inventors: Seungbum Lee, Wonrae Kim, Sooin Kim
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Patent number: 11081658Abstract: A novel compound is disclosed which includes a ligand LA of Formula I, Formula II, Formula III, or Formula IV: wherein: ring B is independently a 5-membered or 6-membered carbocyclic or heterocyclic ring; X1 to X4 are each independently selected from the group consisting of C, N, and CR; at least one pair of adjacent X1 to X4 are each C and fused to a structure of Formula V where indicated by “”; X5 to X12 are each independently C or N; the maximum number of N within a ring is two; Z and Y are each independently selected from the group consisting of O, S, Se, NR?, CR?R?, SiR?R?, and GeR?R?; RB and RC each independently represents zero, mono, or up to a maximum allowed substitutions to its associated ring; each of RB, RC, R, R?, and R? is independently hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl,Type: GrantFiled: March 24, 2020Date of Patent: August 3, 2021Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Pierre-Luc T. Boudreault, Bert Alleyne, Zhiqiang Ji
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Patent number: 11081649Abstract: Provided are a compound represented by Formula 1, an organic electric element comprising a first electrode, a second electrode, and an organic material layer formed between the first electrode and the second electrode and comprising the compound of Formula 1, and an electronic device comprising the element, where the driving voltage of the organic electronic device is lowered, and the luminous efficiency and life time of the organic electronic device is improved.Type: GrantFiled: February 13, 2017Date of Patent: August 3, 2021Assignee: DUK SAN NEOLUX CO., LTD.Inventors: Yun Suk Lee, Sun-Hee Lee, Kiho So, Hyoung Keun Park, Jonggwang Park, Yeonseok Jeong, Junghwan Park, Sunpil Hwang
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Patent number: 11081648Abstract: The present invention provides an organic compound represented by: an organic light emitting diode and an organic light emitting display device using the organic compound. The organic compound of the present invention is capable of reducing a driving voltage of an organic light emitting diode and improving an emitting efficiency and a lifetime of the organic light emitting diode and the organic light emitting display device including the organic compound.Type: GrantFiled: September 26, 2019Date of Patent: August 3, 2021Assignee: LG DISPLAY CO., LTD.Inventors: Seung-Hee Yoon, Sung-Hoon Joo, Seon-Keun Yoo, Ji-Cheol Shin
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Patent number: 11069862Abstract: Provided are an organic electroluminescence device, which shows high luminous efficiency, is free of any pixel defect, and has a long lifetime, and a material for an organic electroluminescence device for realizing the device. The material for an organic electroluminescence device is a compound having a n-conjugated heteroacene skeleton crosslinked with a carbon atom, nitrogen atom, oxygen atom, or sulfur atom. The organic electroluminescence device has one or more organic thin film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin film layers contains the material for an organic electroluminescence device.Type: GrantFiled: October 17, 2017Date of Patent: July 20, 2021Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Tomoki Kato, Masaki Numata, Kazuki Nishimura, Toshihiro Iwakuma, Chishio Hosokawa
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Patent number: 11069871Abstract: Provided is an organic white light emitting element (EL) including: a reflective electrode, a light extraction electrode, and an organic layer arranged therebetween, the organic layer including: a blue light emitting layer (BL); and a long-wavelength light emitting layer, the long-wavelength light emitting layer arranged between the BL and the reflective electrode, the BL provided at such a position as to satisfy Equation given below: z=?×?1/4? where z represents an optical distance between the reflective electrode and an interface of the BL on the reflective electrode side, ? represents a phase of light reflected by the reflective electrode in an emission wavelength region of the BL, and ?1 represents a wavelength in a visible light region, and the EL has a resonator structure defined between the reflective electrode and the light extraction electrode and has a maximum peak resonant wavelength in a blue light wavelength region.Type: GrantFiled: July 3, 2019Date of Patent: July 20, 2021Assignee: CANON KABUSHIKI KAISHAInventor: Takayuki Ito
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Patent number: 11063220Abstract: An organic light-emitting device includes an emission layer and an electron transport layer. The emission layer includes at least one compound represented one of Formula 1, Formula 2 and/or Formula 3. The electron transport layer includes at least one compound represented by Formula 4 and/or Formula 5. An organic light-emitting device including the emission layer and the electron transport layer has high emission efficiency and an improved lifetime.Type: GrantFiled: August 27, 2018Date of Patent: July 13, 2021Assignee: Samsung Display Co., Ltd.Inventors: Seul-Ong Kim, Dong-Woo Shin
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Patent number: 11063221Abstract: The present application relates to a substituted benzanthracene compound of a formula (I) or (II). The application furthermore relates to an electronic device which comprises the said benzanthracene compound.Type: GrantFiled: March 17, 2015Date of Patent: July 13, 2021Assignee: Merck Patent GmbHInventors: Holger Heil, Lara-Isabel Rodriguez, Beate Burkhart, Sebastian Meyer
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Patent number: 11063229Abstract: Novel heteroleptic iridium carbene complexes are provided, which contain at least two different carbene ligands. Selective substitution of the carbene ligands provides for phosphorescent compounds that are suitable for use in a variety of OLED devices.Type: GrantFiled: March 22, 2019Date of Patent: July 13, 2021Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Chun Lin, Chuanjun Xia, Jui-Yi Tsai, Bin Ma
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Patent number: 11056655Abstract: Disclosed are a compound for an organic optoelectric device represented by Chemical Formula 1, an organic optoelectric device including the same, and a display device. Details of Chemical Formula 1 are the same as defined in the specification.Type: GrantFiled: March 30, 2017Date of Patent: July 6, 2021Assignee: SAMSUNG SDI CO., LTD.Inventors: Kipo Jang, Byoungkwan Lee, Youngkwon Kim, Eun Sun Yu, Sung-Hyun Jung, Ho Kuk Jung
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Patent number: 11056662Abstract: The present application discloses an organic light-emitting device and a display device. The organic light-emitting device comprises an anode, a cathode, and a blue light emitting layer, a green light emitting layer and a red light emitting layer between the anode and the cathode, and the blue light emitting layer comprises a blue thermally-activated delayed fluorescent material with a mass percent of 60-80%, the green light emitting layer comprises a green phosphorescent material and/or a green thermally-activated delayed fluorescent material, and the red light emitting layer comprises a red phosphorescent material and/or a red thermally-activated delayed fluorescent material.Type: GrantFiled: October 23, 2017Date of Patent: July 6, 2021Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Angran Zhang, Hamada Yuji, Jinghua Niu, Xiangcheng Wang, Shuang Cheng, Run Yang
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Patent number: 11050028Abstract: A phosphorescent metal complexes containing a ligand LA having the formula selected from is disclosed.Type: GrantFiled: September 15, 2017Date of Patent: June 29, 2021Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Pierre-Luc T. Boudreault, Bert Alleyne
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Patent number: 11050035Abstract: A light emitting diode includes a first electrode overlapping a second electrode, an emission layer between the first and second electrodes. a first hole injection layer and a second hole injection layer between the first electrode and the emission layer, and a first hole transporting layer between the first hole injection layer and the second hole injection layer. Each of the first and second hole injection layers includes an inorganic dipole material. At least one of the first hole injection layer or the second hole injection layer including an organic material.Type: GrantFiled: December 12, 2018Date of Patent: June 29, 2021Assignee: Samsung Display Co., Ltd.Inventors: Dong Chan Kim, Won Jong Kim, Ji Young Moon, Dong Kyu Seo, Myung Chui Yeo, Ji Hye Lee, Yoon Hyeung Cho
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Patent number: 11050025Abstract: A material for an organic electroluminescent device having high emission efficiency and long life and an organic electroluminescent device including the same. The material for an organic electroluminescent device is represented by the following Formula 1.Type: GrantFiled: March 10, 2016Date of Patent: June 29, 2021Assignee: Samsung Display Co., Ltd.Inventors: Hiroaki Itoi, Ichinori Takada, Koushin Matsuoka, Masatsugu Ueno, Naoya Sakamoto, Hiromi Nakano, Nobutaka Akashi, Hideo Miyake, Xiulan Jin, Asami Sakamoto, Junta Fuchiwaki
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Patent number: 11043648Abstract: The present disclosure provides a white organic electroluminescent device, comprising: a substrate; an anode layer; a first light emitting layer formed from a red organic fluorescent material, a first energy-sensitized organic material and a first hole-type organic host material; a second light emitting layer formed from a green organic fluorescent material, a second energy-sensitized organic material and a second hole-type organic host material; and a cathode layer.Type: GrantFiled: August 18, 2017Date of Patent: June 22, 2021Assignee: Changchun Institute of Applied Chemistry Chinese Academy of SciencesInventors: Liang Zhou, Hongjie Zhang
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Patent number: 11042058Abstract: An image display device includes a wavelength conversion layer containing quantum dots and a light reflecting layer provided on an observer side with respect to the wavelength conversion layer. The light reflecting layer includes, in a reflection wavelength region, a peak wavelength of a light source that emits excitation light to be used for emission of the quantum dots. The light reflecting layer is a polarizing reflective layer.Type: GrantFiled: August 26, 2019Date of Patent: June 22, 2021Assignee: NIPPON KAYAKU KABUSHIKI KAISHAInventor: Kouichi Tanaka
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Patent number: 11038137Abstract: The present invention relates to compounds containing fused dibenzo more-than-six-membered heterocycles or azaheterocycles. These compounds may be useful as host materials for phosphorescent electroluminescent devices.Type: GrantFiled: April 3, 2018Date of Patent: June 15, 2021Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Peter Wolohan, Diana Drennan, George Fitzgerald
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Patent number: 11038115Abstract: A compound including a first ligand LA of Formula I, useful as an emitter in OLEDs is disclosed.Type: GrantFiled: April 3, 2018Date of Patent: June 15, 2021Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Mingjuan Su, Jerald Feldman
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Patent number: 11024815Abstract: The present invention relates to metal complexes and to electronic devices, especially organic electroluminescent devices, comprising these metal complexes, especially as emitters, and in particular monometallic metal complex containing a hexadentate tripodal ligand in which three bidentate sub-ligands coordinate to a metal and the three bidentate sub-ligands, which may be the same or different, are joined via a bridge.Type: GrantFiled: January 7, 2016Date of Patent: June 1, 2021Assignee: Merck Patent GmbHInventors: Philipp Stoessel, Nils Koenen, Philipp Harbach, Christian Ehrenreich
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Patent number: 11024811Abstract: A composition of materials including a first compound having a structure according to Formula IType: GrantFiled: April 10, 2019Date of Patent: June 1, 2021Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: 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
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Patent number: 11024816Abstract: Compounds having a structure of Formula I, Formula II, or Formula III, devices containing the same, and formulations containing the same are described. In Formulas (I), (II), and (III), X2 to X8 are C or N; at least one of X2 to X8 is N; R1, R2, R3, and R4 are independently alkyl or cycloalkyl; at least one of R1 to R4 has at least two C atoms; R5 is hydrogen, deuterium, alkyl, cycloalkyl, or a combination thereof; R6, R7, and R8 are independently hydrogen, deuterium, alkyl, cycloalkyl, and combinations thereof; and n is 1 or 2.Type: GrantFiled: May 11, 2018Date of Patent: June 1, 2021Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Pierre-Luc T. Boudreault, Alexey Borisovich Dyatkin, Chuanjun Xia, Hitoshi Yamamoto
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Patent number: 11018310Abstract: A highly rigid tetradentate ligand is combined with a gold(III) ion as a thermally stable tetradentate gold(III) complex. The tetradentate gold(III) complex is a tetradentate gold(III) compound that can be used as a light-emitting material which can be used for fabricated of light-emitting devices such as an organic light-emitting diode (OLED). The tetradentate gold(III) compound can be deposited as a layer or a component of a layer using a solution-process or a vacuum deposition process. The luminescent tetradentate gold(III) compounds are robust and can provide electroluminescence (EL) with a high efficiency and brightness.Type: GrantFiled: January 30, 2017Date of Patent: May 25, 2021Assignee: The University of Hong KongInventors: Vivian Wing-Wah Yam, Hok-Lai Wong, Yiu-Wing Wong, Mei-Yee Chan
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Patent number: 11008510Abstract: A light-emitting element includes an EL layer between a pair of electrodes. The EL layer contains a first compound and a second compound. The first compound is a phosphorescent iridium metal complex having a LUMO level of greater than or equal to ?3.5 eV and less than or equal to ?2.5 eV, and the second compound is an organic compound having a pyrimidine skeleton. The light-emitting element includes an EL layer between a pair of electrodes. The EL layer contains a first compound and a second compound. The first compound is a phosphorescent iridium metal complex having a diazine skeleton, and the second compound is an organic compound having a pyrimidine skeleton.Type: GrantFiled: May 22, 2017Date of Patent: May 18, 2021Inventors: Kyoko Takeda, Harue Osaka, Satoko Shitagaki, Nobuharu Ohsawa, Satoshi Seo, Hiromi Seo