Abstract: A heterocyclic compound is represented by Formula 1. In Formulae 1, 1a, and 1b, two adjacent groups among A1 to A8 are each independently connected with a respective * of Formulae 1a or 1b to form a ring, where each * is a carbon atom of Formula 1. An organic light-emitting device includes the heterocyclic compound.
Abstract: An organic light-emitting device (OLED) includes a first electrode, a second electrode, an emission layer between the first electrode and the second electrode and including an electron-transporting host and a hole-transporting host, a hole transport region between the first electrode and the emission layer and including a hole transport layer, and an electron transport region between the emission layer and the second electrode and including an electron transport layer, wherein the OLED satisfies Equations 1 and 2 below: 0.75 eV?|LUMOH(ET)?LUMOH(HT)|?0.90 eV??<Equation 1> |E(S1,H(ET))?E(S1,H(HT))|<0.15 eV??<Equation 2> wherein in Equations 1 and 2, LUMOH(ET) refers to a lowest unoccupied molecular orbital (LUMO) energy level of the electron-transporting host, LUMOH(HT) refers to an LUMO energy level of the hole-transporting host, E(S1, H(ET)) refers to a singlet energy level of the electron-transporting host, and E(S1, H(HT)) refers to a singlet energy level of the hole-transporting host.
Type:
Grant
Filed:
August 28, 2015
Date of Patent:
August 11, 2020
Assignee:
Samsung Electronics Co., Ltd.
Inventors:
Sangyeob Lee, Sangdong Kim, Jiwhan Kim, Banglin Lee, Seungyeon Kwak, Hyeonho Choi
Abstract: An organic light emitting display device is disclosed. The organic light emitting display device comprises an anode; an organic layer on the anode; and a cathode on the organic layer, wherein the organic layer comprises a compound including a carbazole compound having hole characteristics and a material having electron characteristics.
Type:
Grant
Filed:
July 8, 2015
Date of Patent:
July 28, 2020
Assignee:
LG Display Co., Ltd.
Inventors:
JungKeun Kim, DoHan Kim, Hyoseok Kim, Hyeseung Kang, Min Yun, SeungHee Yoon
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:
February 11, 2015
Date of Patent:
June 30, 2020
Assignee:
DUK SAN NEOLUX CO., LTD.
Inventors:
Soung Yun Mun, Sun-Hee Lee, Jung Cheol Park, DaeSung Kim, Bum Sung Lee, Seok hyun Kim
Abstract: The present invention provides a novel compound which is capable of improving light-emitting efficiency, stability and lifespan of an element, an organic electronic element using the same, and an electronic device thereof.
Type:
Grant
Filed:
November 27, 2017
Date of Patent:
June 2, 2020
Assignee:
Duk San Neolux Co., Ltd
Inventors:
Wonsam Kim, Yeonhee Choi, Hyeryeong Kim, Jaewan Jang, Yuri Kim, Junghwan Park, Soungyun Mun, Seokhyun Kim
Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an anode and a cathode, and the at least one light emitting part having at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound represented by Chemical Formula 1 or 2.
Type:
Grant
Filed:
August 29, 2016
Date of Patent:
May 19, 2020
Assignees:
LG DISPLAY CO., LTD, LG CHEM, LTD.
Inventors:
Jungkeun Kim, Dohan Kim, Jeongdae Seo, Hyoseok Kim, Heungwoo Choi, Wanpyo Hong
Abstract: The present invention provides a novel iridium complex and an organic light-emitting device including the novel iridium complex. The novel iridium complex includes three ligands, and two of them have a phenyl-naphtho[2,1-f]isoquinoline skeleton. The present invention also provides a display apparatus including the organic light-emitting device and an electrophotographic image-forming apparatus including a light source including the organic light-emitting device and including a photosensitive member.
Abstract: The present invention provides a compound having a fluoranthene skeleton represented by the formula (1); an organic electroluminescence device having plural organic thin film layers including a light-emitting layer between a cathode and an anode, wherein at least one layer of the organic thin film layers contains the compound; and an electronic equipment provided with the organic electroluminescence device. The organic electroluminescence device realizes further lower voltage driving and has high emission efficiency. [In the formula (1), X1 to X10, L, R1 to R9, and n are as stated in the description.
Abstract: Disclosed is a compound having Formula I In Formula I: Ar is aryl or deuterated aryl; R1 and R2 are the same or different and can be alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, or deuterated aryl; R3-R5 are the same or different at each occurrence and can be D, alkyl, silyl, aryl, deuterated alkyl, deuterated aryl, or deuterated silyl; where two adjacent R4 groups can be joined together to form a fused 6-membered aromatic or deuterated aromatic ring; a and c are independently an integer from 0-3; and b is an integer from 0-4. Formula I may exist as either fac or mer structural isomers including mixtures of both.
Abstract: A light-emitting element having high emission efficiency is provided. A light-emitting element which has high emission efficiency without using a rare metal as a light-emitting material is provided. A light-emitting element includes a first electrode, a second electrode, and a layer between the first electrode and the second electrode. The layer contains a first organic compound and a second organic compound. The second organic compound has a carbazole skeleton and a substituted or unsubstituted bivalent aromatic hydrocarbon group. The second organic compound further has a benzofuropyrimidine skeleton or a benzothienopyrimidine skeleton. The aromatic hydrocarbon group is bonded to the carbazole skeleton. The aromatic hydrocarbon group is bonded to the benzofuropyrimidine skeleton or the benzothienopyrimidine skeleton. The first organic compound and the second organic compound can form an exciplex.
Type:
Grant
Filed:
May 27, 2016
Date of Patent:
March 10, 2020
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
Inventors:
Shunsuke Hosoumi, Tatsuyoshi Takahashi, Takahiro Ishisone, Satoshi Seo
Abstract: A compound having a structure of Formula 1: is disclosed. In Formula 1, each one of X1 to X16 is independently CR or N; at least two adjacent of X1 to X16 are CR; at least one pair of adjacent Rs is fused to one of the Ring A, Ring B, Ring C, or Ring D; each instance of Y1, Y2, Y3, and Y4 is independently CR1 or N; each instance of Z is independently CR2R3, NR4, O, S or Se; each instance of R, R1, R2, R3, and R4 are independently selected from a variety of substituents; and any adjacent substituents of R, R1, R2, R3, and R4 are optionally joined or fused into a ring. Formulations and devices, such as an OLEDs, that include the compound of Formula 1 are also described.
Type:
Grant
Filed:
July 6, 2015
Date of Patent:
February 18, 2020
Assignee:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Raymond Kwong, Sze Kui Lam, Chi Hang Lee
Abstract: Disclosed are an organic electroluminescent device that is improved in luminous efficiency, sufficiently secures driving stability, and has a simple construction, and a material to be used in the device. The material is a material for an organic electroluminescent device formed of a carborane ring compound having a structure in which two indolocarbazole groups are each bonded to a carborane ring through an aromatic group. In addition, the device is an organic electroluminescent device having organic layers between an anode and a cathode laminated on a substrate, in which at least one layer of the organic layers contains the material for an organic electroluminescent device. When the organic layer is a light-emitting layer, the layer contains a phosphorescent light-emitting dopant and contains the material for an organic electroluminescent device as a host material.
Type:
Grant
Filed:
February 26, 2015
Date of Patent:
January 7, 2020
Assignee:
NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
Inventors:
Junya Ogawa, Takahiro Kai, Tokiko Ueda, Masashi Tada, Masaki Komori, Toshihiro Yamamoto
Abstract: An organometallic compound represented by Formula 1: M(L1)(L2)??Formula 1 wherein, in Formula 1, M, L1, and L2 are the same as described in the specification.
Abstract: The present invention relates to a compound, and a light-emitting element and an electronic device including the same, and, more particularly, to a compound for an organic light-emitting element, and a light-emitting element and an electronic device including the same. The compound according to the present invention can improve hole injection and/or transport abilities.
Type:
Grant
Filed:
August 9, 2013
Date of Patent:
December 31, 2019
Assignee:
LMS Co., Ltd.
Inventors:
Jeong Og Choi, Oh Kwan Kwon, Joon Ho Jung
Abstract: The present specification provides a novel compound capable of significantly improving lifespan, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device containing the compound in an organic compound layer.
Type:
Grant
Filed:
June 26, 2014
Date of Patent:
December 10, 2019
Assignee:
LG CHEM, LTD.
Inventors:
Sangbin Lee, Dong Hoon Lee, Jungoh Huh, Dong Uk Heo, Miyeon Han, Boonjae Jang, Minyoung Kang
Abstract: Disclosed is an organic electroluminescent device (organic EL device) that is improved in luminous efficiency, sufficiently secures driving stability, and has a simple construction. The device is an organic electroluminescent device having organic layers including a light-emitting layer between an anode and a cathode laminated on a substrate, in which a carborane compound is incorporated into at least one layer of the organic layers, or is incorporated as a host material into a light-emitting layer containing a phosphorescent light-emitting dopant and the host material. The carborane compound has a structure in which a N-containing fused aromatic ring is bonded to a carborane ring. The N-containing fused aromatic ring is a quinoline ring or has a structure obtained by substituting 1 to 3 ring-forming carbon atoms in a quinoline ring with N atoms.
Type:
Grant
Filed:
February 23, 2015
Date of Patent:
October 15, 2019
Assignee:
NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
Inventors:
Tokiko Ueda, Junya Ogawa, Takahiro Kai, Masashi Tada
Abstract: Disclosed are an organic compound represented by formula 1, an organic optoelectric diode applying the organic compound, and a display device comprising the organic optoelectric diode.
Abstract: The present invention provides a novel compound which is capable of improving light-emitting efficiency, stability and lifespan of an element, an organic electronic element using the same, and an electronic device thereof.
Type:
Grant
Filed:
November 22, 2013
Date of Patent:
October 15, 2019
Assignee:
Duk San Neolux Co., Ltd.
Inventors:
Wonsam Kim, Yeonhee Choi, Hyeryeong Kim, Jaewan Jang, Yuri Kim, Junghwan Park, Soungyun Mun, Seokhyun Kim
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.
Abstract: The present invention relates to a compound, comprising a pyrene skeleton and arylamino groups, according to formula (I). The compound is suitable for use as a functional material in electronic devices.