Abstract: This invention discloses metal complexes containing a ligand comprising a carborane moiety. Organic electroluminescent devices comprising these metal complexes containing a carborane moiety in the light-emitting layer showed desired properties in term of external quantum efficiency (EQE), device lifetime (LT), and color purity as measured by CIE.
Abstract: An organometallic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification. Organometallic compounds represented by Formula 1 may be suitable for use in an organic layer of an organic light emitting device.
Abstract: The present invention relates in part to compounds containing indolocarbazole and terphenyl building blocks. These compounds are useful for application in organic electroluminescent devices wherein the combination of indolocarbazoles with terphenyl groups leads to novel compounds that demonstrate superior device performance.
Type:
Grant
Filed:
April 12, 2018
Date of Patent:
November 14, 2023
Assignee:
Universal Display Corporation
Inventors:
Lichang Zeng, Zhiqiang Ji, Walter Yeager, Alexey Borisovich Dyatkin, Chuanjun Xia, Ting-Chih (Carina) Wang, Bin Ma, Bert Alleyne, Vadim Adamovich
Abstract: Provided is a thermally activated delayed fluorescent organic electroluminescent device having a low driving voltage, high luminous efficiency, and a long lifetime. The organic electroluminescent device includes light-emitting layers between an anode and a cathode opposite to each other, and at least one of the light-emitting layers contains a thermally activated delayed fluorescent material, or the thermally activated delayed fluorescent material and a host material. The thermally activated delayed fluorescent material is represented by the following general formula (1) where A represents an electron-withdrawing group, such as a CN group, and D1 and D2 each represent an electron-donating group having an indole ring structure.
Type:
Grant
Filed:
November 28, 2016
Date of Patent:
November 14, 2023
Assignee:
NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
Inventors:
Masashi Tada, Kazuaki Yoshimura, Atsushi Kawada, Katsuhide Noguchi, Yuta Sagara, Junya Ogawa
Abstract: Disclosed are the compound for an organic optoelectronic device, the compound being represented by Chemical Formula 1, a composition for an organic optoelectronic device including the compound for an organic optoelectronic device, an organic optoelectronic device, and a display device. In Chemical Formula 1, each substituent is the same as defined in the specification.
Type:
Grant
Filed:
July 16, 2020
Date of Patent:
October 24, 2023
Assignee:
SAMSUNG SDI CO., LTD.
Inventors:
Jihyun Lui, Changwoo Kim, Dong Wan Ryu, Chang Ju Shin, Hyung Sun Kim, Seungjae Lee, Jihun Shin, Sung-Hyun Jung, Ho Kuk Jung
Abstract: An organometallic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.
Abstract: A condensed-cyclic compound and an organic light-emitting device, the condensed-cyclic compound being represented by the following Formula 1:
Type:
Grant
Filed:
July 13, 2015
Date of Patent:
October 17, 2023
Assignee:
Samsung Display Co., Ltd.
Inventors:
Seokhwan Hwang, Hyejin Jung, Sooyon Kim, Youngkook Kim, Mieun Jun, Sanghyun Han
Abstract: A compound useful as a hole transport material for an organic electronic device, in particular, an organic electroluminescent (EL) device. The compound of the present specification is represented by the following General Formula (1).
Abstract: An organic electroluminescence device includes a first electrode, a second electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a compound represented by Formula 1 below.
Abstract: An organic light emitting device having an anode, a cathode and an organic layer disposed between the anode and the cathode is provided. In one aspect, the organic layer comprises a compound having at least one zwitterionic carbon donor ligand.
Type:
Grant
Filed:
February 22, 2019
Date of Patent:
October 3, 2023
Assignees:
The University of Southern California, Universal Display Corporation
Inventors:
Peter Djurovich, Jui-Yi Tsai, Chun Lin, Jason Brooks, Bert Alleyne, Mark E. Thompson, Peter B. Mackenzie, Bin Ma
Abstract: An organometallic compound represented by Formula 1, an organic light-emitting device including the organometallic compound, and a diagnostic composition including the organometallic compound: wherein, in Formula 1, Y2, a ring CY2, R1 to R8, R20, A1 to A7 and d2 may be each independently the same as described in the specification.
Type:
Grant
Filed:
October 31, 2019
Date of Patent:
October 3, 2023
Assignee:
SAMSUNG ELECTRONICS CO., LTD.
Inventors:
Yongsuk Cho, Soyeon Kim, Jiyoun Lee, Jongwon Choi, Dmitry Kravchuk, Banglin Lee, Ohyun Kwon, Kyuhyun Im
Abstract: The present disclosure relates to the field of display technologies, and particularly discloses an organic electroluminescent device. The organic electroluminescent device has a first electrode, a second electrode, and an organic functional layer. The organic functional layer comprises a light-emitting layer. The light-emitting layer comprises at least a host material and a guest material. The host material comprises an exciplex composed of a donor molecule and a receptor molecule, wherein the donor molecule and/or the receptor molecule contains a large steric hindrance substituent group X for increasing an inter-molecular distance between the donor molecule and the receptor molecule, which enables to enhance Foster energy transfer to the guest material molecule, improve device efficiency, inhibit Triplet-Polaron Annihilate Annihilation (TPA), and prolong the device lifetime.
Type:
Grant
Filed:
September 3, 2019
Date of Patent:
October 3, 2023
Assignees:
Kunshan Go-Visionox Opto-Electronics Co., Ltd., Tsinghua University
Inventors:
Lian Duan, Xiaozeng Song, Dongdong Zhang, Guomeng Li
Abstract: A composition including a first compound including a compound represented by Formula 1, a second compound including a compound represented by Formula 2, and a third compound including a compound represented by Formula 3, and an organic light-emitting device including the composition: wherein the description of Formulae 1 to 3 are the same as described in the specification.
Abstract: A composition including a first compound represented by Formula 1 and a second compound represented by Formula 2 and an organic light-emitting device including the composition: Formulae 1 and 2 may each be understood by referring to the descriptions thereof provided herein.
Type:
Grant
Filed:
October 31, 2019
Date of Patent:
September 12, 2023
Assignee:
SAMSUNG ELECTRONICS CO., LTD.
Inventors:
Banglin Lee, Soyeon Kim, Jiyoun Lee, Jongwon Choi, Dmitry Kravchuk, Sangdong Kim, Sukekazu Aratani, Yongsuk Cho
Abstract: Novel metal compounds having a first ligand LA that has the following formula: Formula I useful as emitters in OLED application are disclosed.
Type:
Grant
Filed:
May 24, 2018
Date of Patent:
September 12, 2023
Assignee:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Hsiao-Fan Chen, Mingjuan Su, Zhiqiang Ji, Jui-Yi Tsai, Jason Brooks, Paul M. Lahti
Abstract: An organometallic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.
Abstract: A compound having the formula [LA]yIr[LB]x is disclosed, where LA is selected from one of the following: The compounds have at least one pyridyl dibenzo-substituted ligand that coordinates to metal center from the sterically hindered position as exemplified by LA. Because of this unique configuration, the compounds display better photo-physical and thermal properties and can be used in OLED devices to improve their performance, particularly with respect to the device's lifetime.
Type:
Grant
Filed:
July 25, 2018
Date of Patent:
August 29, 2023
Assignee:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Zhiqiang Ji, Alexey Borisovich Dyatkin, Jui-Yi Tsai, Walter Yeager, Edward Barron
Abstract: A compound having a structure of the formula Ir(LA)(LB), in which LA is a bidentate, tridentate, tetradentate, pentadentate, or hexadentate ligand and LB is a monodentate, bidentate, tridentate, or tetradentate ligand, or not present, and where the total denticity of LA plus LB is 6, and LA includes at least one structure of Formula I: is disclosed as a useful phosphorescent emitter compound.
Type:
Grant
Filed:
July 25, 2018
Date of Patent:
August 29, 2023
Assignee:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Geza Szigethy, Joseph A. Macor, Charles Stanton, Galyna Dubinina, Douglas Williams
Abstract: Cyclometallated iridium complexes having triphenylene or aza triphenylene and bulky alkyl substitution that can be used as emitters in OLEDs to improve the external quantum efficiency (EQE) and lifetime of OLEDs are disclosed.
Type:
Grant
Filed:
August 26, 2019
Date of Patent:
August 8, 2023
Assignee:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Zhiqiang Ji, Alexey Borisovich Dyatkin, Jui-Yi Tsai, Pierre-Luc T. Boudreault