Abstract: The present disclosure provides an organic light emitting diode including a first electrode; a second electrode facing the first electrode; and an emitting material layer including a first compound and a second compound positioned between the first and second electrodes, wherein the first compound includes a hexagonal-ring moiety including one boron atom, one oxygen atom and four carbon atoms, and the second compound includes a hexagonal-ring moiety including one boron atom, one nitrogen atom and four carbon atoms, and an organic light emitting device including the organic light emitting diode.
Type:
Grant
Filed:
November 20, 2020
Date of Patent:
March 26, 2024
Assignee:
LG DISPLAY CO., LTD.
Inventors:
Ik-Rang Choe, Hye-Gun Ryu, Jun-Yun Kim, Seong-Keun Kim, Ju-Young Lee
Abstract: Provided are: a highly durable polymer having a high hole-injection/transport capacity; and a composition for an organic electroluminescent element, which contains the polymer.
Abstract: A luminescent material, including a first compound represented by Formula 1 and a second compound represented by Formula 2: [A][Cu][X]3??Formula 1 R21R22R23N??Formula 2 wherein, in Formulae 1 and 2, A, X, and R21 to R23 are understood by referring to the definitions thereof provided in the detailed description of the specification.
Abstract: An organic electroluminescent device includes a pair of electrodes; and an organic layer between the pair of electrodes, which includes a light-emitting layer, wherein the organic layer contains a compound represented by the following formula (I); and the light-emitting layer contains a iridium complex phosphorescent material: wherein R1, R2, R3, R4, R5, R6, R7 and R8 each represents a hydrogen atom or a substituent, and contiguous substituents of R1 to R8 may be bonded to each other to form a condensed ring; R9 represents an alkyl group, an alkenyl group, an aryl group, a hetero-aryl group, or a silyl group, and each of which group may be substituted with a substituent; and at least one of R1 to R9 represents a deuterium atom or a substituent containing a deuterium atom.
Abstract: A novel compound is provided. Alight-emitting device having high emission efficiency and a long lifetime is also provided. An organic compound is represented by General Formula (G2), in which a benzo[a]anthracene skeleton is bonded to the 2-position of an anthracene skeleton. In General Formula (G2), R1 to R3, R5 to R12, and R21 to R29 each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms in a ring. Another embodiment of the present invention is a light-emitting device including the compound.
Type:
Grant
Filed:
May 22, 2019
Date of Patent:
March 19, 2024
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
Abstract: Provided are organometallic compounds. Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.
Type:
Grant
Filed:
January 4, 2021
Date of Patent:
March 19, 2024
Assignee:
Universal Display Corporation
Inventors:
Wei-Chun Shih, Tyler Fleetham, Zhiqiang Ji, Pierre-Luc T. Boudreault, Tongxiang Lu, Rasha Hamze
Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an organic layer disposed between the first electrode and the second electrode and including an emission layer; and at least one of heterocyclic compounds represented by Formulae 1-1 to 1-3, as defined herein.
Abstract: Disclosed are a compound represented by Chemical Formula 1, a composition comprising the same, an organic optoelectronic diode, and a display device. Chemical formula 1 is as defined in the specification.
Abstract: Provided are boron-containing compounds. Also provided are formulations comprising these boron-containing compounds. Further provided are OLEDs and related consumer products that utilize these boron-containing compounds.
Type:
Grant
Filed:
October 6, 2020
Date of Patent:
March 5, 2024
Assignee:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Peter Wolohan, Tyler Fleetham, Jerald Feldman
Abstract: An organic light emitting device including an anode; a hole transport region on the anode; an emission layer on the hole transport region; an electron transport region on the emission layer; and a cathode on the electron transport region, wherein the hole transport region includes: a first hole transport layer including a first hole transport material represented by the following Formula 1 or a second hole transport material represented by the following Formula 2; and a second hole transport layer on the first hole transport layer, the second hole transport layer including a third hole transport material represented by the following Formula 3 or a fourth hole transport material represented by the following Formula 4:
Abstract: Novel ligands for metal complexes containing five-membered ring fused on pyrimidine ring combined with partially fluorinated side chains exhibiting improved external quantum efficiency and lifetime are disclosed.
Abstract: A luminescent film includes a host compound, a blue phosphorescent compound, and a blue fluorescent compound, in which an emission spectrum of the blue phosphorescent compound and an absorption spectrum of the blue fluorescent compound have portions overlapping with each other; shortest wavelength-side maximum emission wavelengths of the blue phosphorescent compound (abbreviated as “BPM” in the expression) and the blue fluorescent compound (abbreviated as “BFM” in the expression) satisfy the following expression (1): ?BFM??BPM: expression (1) in which ?BFM represents the shortest wavelength-side maximum emission wavelength of the blue fluorescent compound and ?BPM represents the shortest wavelength-side maximum emission wavelength of the blue phosphorescent compound; and light emission derived from the blue fluorescent compound is detected.
Type:
Grant
Filed:
March 4, 2022
Date of Patent:
February 20, 2024
Assignee:
MERCK PATENT GMBH
Inventors:
Kenichi Tabata, Yuta Nakamura, Taketo Namikawa, Satoru Inoue, Yasuo Miyata, Hiromoto II
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:
August 25, 2022
Date of Patent:
February 13, 2024
Inventors:
Zhihao Cui, Chi Yuen Raymond Kwong, Chuanjun Xia
Abstract: A light-emitting device includes: an anode; a cathode facing the anode; an emission layer between the anode and the cathode; and an electron control layer between the emission layer and the cathode, wherein the electron control layer includes an electron control compound represented by Formula 5: A method of manufacturing the light-emitting device includes: forming an emission layer on an anode; and forming an electron control layer on the emission layer, wherein the electron control layer includes an electron control compound represented by Formula 5.
Abstract: The present invention describes carbazole, dibenzofuran, dibenzothiophene and fluorene derivatives which are substituted by electron-deficient heteroaryl groups, in particular for use as triplet matrix materials in organic electroluminescent devices. The invention furthermore relates to a process for the preparation of the compounds according to the invention and to electronic devices comprising these compounds.
Type:
Grant
Filed:
November 25, 2022
Date of Patent:
February 6, 2024
Assignee:
Merck Patent GmbH
Inventors:
Amir Hossain Parham, Anja Jatsch, Thomas Eberle, Tobias Grossmann, Jonas Valentin Kroeber, Lars Dobelmann-Mara
Abstract: The present disclosure provides an organic light-emitting device comprising a novel compound. When the novel compound is applied as a hole transport material to an organic light emitting device, the novel compound allows the device to have improved drive voltage, efficiency and lifespan characteristics.
Type:
Grant
Filed:
October 31, 2022
Date of Patent:
February 6, 2024
Assignee:
LG DISPLAY CO., LTD.
Inventors:
Heejun Park, Seonkeun Yoo, Soyoung Jang, Jicheol Shin, Sangbeom Kim, Sunghoon Kim, Tae Wan Lee, Dong Hun Lee, Jeonghoe Heo
Abstract: A light emitting device contains an anode, cathode, and two organic layers provided therebetween. One organic layer contains a phosphorescent compound, the second organic layer contains a block copolymer containing an end group, a block that binds to the end group and/or a block that does not bind to the end group, and a crosslinked product of the block copolymer. The non-terminal block contains a non-crosslinkable unit represented by the formula (X) and/or a non-crosslinkable unit represented by the formula (Z). At least one of XI>XII; ZI>ZII; XI+ZI>XII+ZII is satisfied when the total number of units having formula (X) and the total number of units having formula (Z) in the non-terminal block are XI and ZI, respectively, and the total number of units having formula (X) and the total number of units having formula (Z) in the terminal block are XII and ZII, respectively.
Abstract: This invention discloses iridium complexes with ligands based on a phenyl quinoline backbone with at least a double substitution on the quinoline moiety. These complexes can be used as phosphorescent emitters in OLEDs.
Type:
Grant
Filed:
October 15, 2020
Date of Patent:
January 30, 2024
Assignee:
Universal Display Corporation
Inventors:
Pierre-Luc T. Boudreault, Chuanjun Xia, Harvey Wendt
Abstract: Disclosed are a compound with anthrone and N-containing heterocycle and an application thereof in an OLED. The compound contains anthrone and N-containing heterocycle structure which are both strong electron-withdrawing groups. The compound has a deep HOMO energy level and high electron mobility and is suitable for use as hole blocking materials or electron transport materials; the compound can also be used as a host material for electron-type light-emitting layers; in addition, the compound of the present invention has strong group rigidity, not easily causes crystallization and aggregation between molecules, and has good film-forming property. After the compound of the present invention is applied to an OLED device as an organic electroluminescent functional layer material, the current efficiency, power efficiency and external quantum efficiency of the device are greatly improved; moreover, the compound can improve the service life of the device.
Abstract: An organic molecule for use in optoelectronic devices having a structure of formula I wherein X1 and X2 are at each occurrence independently selected from the group consisting of CR21 and N; X3 and X4 are at each occurrence independently selected from the group consisting of CR22 and N: X5 and X6 are at each occurrence independently selected from the group consisting of CR23 and N; R21, R22, R23 is at each occurrence independently selected from the group consisting of hydrogen, deuterium, C1-C5-alkyl, C2-C8-alkenyl, C2-C8-alkynyl, C6-C18-aryl, and C3-C17-heteroaryl; and at least one variable of X1 and X2 is N, at least one variable of X3 and X4 is N and at least one variable of X5 and X6 is N.