Abstract: The present invention relates to metal complexes and to electronic devices, in particular organic electroluminescent devices, comprising these metal complexes.
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:
June 4, 2020
Date of Patent:
May 31, 2022
Assignees:
LG Display Co., Ltd., LG Chem, Ltd.
Inventors:
Jungkeun Kim, Dohan Kim, Jeongdae Seo, Hyoseok Kim, Heungwoo Choi, Wanpyo Hong
Abstract: A light emitting device includes a first electrode, a hole transporting layer in contact with the first electrode, a second electrode, an electron transporting layer in contact with the second electrode; and an emissive layer between the hole transporting layer and the electron transporting layer. The emissive layer includes a phosphorescent emitter, a fluorescent emitter, and a host, and the phosphorescent emitter harvests electrogenerated excitons and transfers energy to the fluorescent emitter.
Type:
Grant
Filed:
August 21, 2015
Date of Patent:
May 10, 2022
Assignee:
Arizona Board of Regents on behalf of Arizona State University
Abstract: A compound that emits fluorescence and delayed fluorescence is provided as a material for an organic electroluminescent device of high efficiency, and an organic photoluminescent device and an organic electroluminescent device of high efficiency and high luminance are provided using this compound. The compound of general formula (1) having a tetraazatriphenylene ring structure is used as a constituent material of at least one organic layer in an organic electroluminescent device that includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes.
Type:
Grant
Filed:
April 15, 2015
Date of Patent:
March 22, 2022
Assignees:
Hodogaya Chemical Co., Ltd., Kyulux, Inc.
Abstract: The invention relates to compounds which are suitable for use in electronic devices, and electronic devices, in particular organic electroluminescent devices, containing said compounds.
Type:
Grant
Filed:
April 22, 2019
Date of Patent:
February 8, 2022
Assignee:
MERCK PATENT GMBH
Inventors:
Anja Jatsch, Tobias Grossmann, Amir Hossain Parham, Thomas Eberle, Christof Pflumm, Jonas Kroeber, Philipp Stoessel, Elvira Montenegro, Rouven Linge
Abstract: The present disclosure relates to a nitrogen heterocycle fused ring-indene compound having a structure represented by the Formula (I), in which Ar1 represents a substituted or unsubstituted aromatic fused ring group containing at least one nitrogen heteroaryl; Ar2 represents a chemical group acting as an electron donor; R1 and R2 are independently selected from the group consisting of hydrogen, substituted or unsubstituted C1-C20 alkyl, substituted or unsubstituted C3-C20 cycloalkyl, substituted or unsubstituted C1-C20 alkoxy, substituted or unsubstituted C3-C20 heterocyclyl, substituted or unsubstituted C6-C40 aryl, and substituted or unsubstituted C5-C40 heteroaryl. The compounds according to the present disclosure have high glass transition temperature and thermal stability, and are easy to form a high-quality amorphous film, so that a driving voltage can be lowered, the luminous efficiency and lifetime of the device are improved.
Type:
Grant
Filed:
December 6, 2018
Date of Patent:
November 23, 2021
Assignee:
SHANGHAI TIANMA AM-OLED CO., LTD.
Inventors:
Lei Zhang, Xiangcheng Wang, Wei Gao, Jinghua Niu, Ying Liu, Gaojun Huang, Ping An, Xueqiang Luo
Abstract: A compound is represented by Formula 1 below: wherein each of Ar1, Ar2, and L is independently selected from a list of substituted or unsubstituted aryl groups, l is 0 or 1, m is an integer from 1 to 5, n is 2 or 3. When m is two or more, two or more L(s) are identical to or different from each other. M indicates a post-transition metal or a transition metal.
Type:
Grant
Filed:
October 10, 2017
Date of Patent:
November 16, 2021
Assignee:
SAMSUNG DISPLAY CO., LTD.
Inventors:
Soobyung Ko, Haejin Kim, Mieun Jun, Youngkook Kim, Seokhwan Hwang
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:
April 7, 2020
Date of Patent:
October 26, 2021
Assignees:
LG Display Co., Ltd., LG Chem, Ltd.
Inventors:
Jungkeun Kim, Dohan Kim, Jeongdae Seo, Hyoseok Kim, Heungwoo Choi, Wanpyo Hong
Abstract: An organic electroluminescent device includes a first electrode, a hole transport region provided on the first electrode, an emission layer provided on the hole transport region, an electron transport region provided on the emission layer, and a second electrode provided on the electron transport region, wherein the emission layer includes an organometallic compound represented by Formula 1.
Type:
Grant
Filed:
January 29, 2019
Date of Patent:
October 12, 2021
Inventors:
Jimyoung Ye, Myeongsuk Kim, Byeongwook Yoo, Yiseul Kim, Hyoyeon Kim, Jaehoon Hwang
Abstract: The present invention relates to compounds which are suitable for use in electronic devices, and to electronic devices, in particular organic electroluminescent devices, comprising these compounds.
Abstract: Organic molecules are provided for use in optoelectronic devices. The organic molecules are purely organic molecules, i.e., they do not contain any metal ions. The organic molecules exhibit emission maxima in the blue, sky-blue or green spectral range. The organic molecules exhibit emission maxima between 420 nm and 520 nm, between 440 nm and 495 nm, or between 450 nm and 470 nm. The photoluminescence quantum yields of the organic molecules are 20% or more. The molecules exhibit thermally activated delayed fluorescence (TADF). The use of the molecules in an optoelectronic device, e.g., an organic light-emitting diode (OLED) leads to higher efficiencies of the device. Corresponding OLEDs have a higher stability than OLEDs with known emitter materials and comparable color.
Abstract: A compound that emits fluorescence and delayed fluorescence is provided as a material for an organic electroluminescent device of high efficiency, and an organic photoluminescent device and an organic electroluminescent device of high efficiency and high luminance are provided using this compound. The spiro compound of a general formula (1) having an azafluorene ring structure is used as a constituent material of at least one organic layer in an organic electroluminescent device that includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes.
Type:
Grant
Filed:
March 2, 2015
Date of Patent:
February 9, 2021
Assignees:
Hodogaya Chemical Co., Ltd., Kyulux, Inc.
Abstract: Disclosed are a p-doped conjugated small molecular electrolyte containing a compound represented by Formula 1 and an organic electronic device using the same as a hole transport material. [Ar2—Ar1—Ar2]+??<Formula 1> wherein, in Formula 1, Ar1 is any one selected from the following Compound Group 1, Ar2 is any one selected from the following Compound Group 2a or the following Compound Group 2b, and superscript “+” in the square bracket indicates an oxidized portion of a main chain of the small molecule.
Type:
Grant
Filed:
December 23, 2015
Date of Patent:
December 22, 2020
Assignee:
GWANGJU INSTITUTE OE SCIENCE AND TECHNOLOGY
Abstract: The present invention relates to: an organic compound which is represented by formula 1 and has a molecular weight of less than 750; a composition for an organic optoelectronic diode which includes the organic compound; an organic optoelectronic diode which applies the organic compound and the composition; and a display device which includes the organic optoelectronic diode.
Abstract: The present invention relates to a photocured composition comprising (A) a photocurable monomer and (B) a monomer of chemical formula 1, a blocking layer comprising the same, and an encapsulated device comprising the same.
Type:
Grant
Filed:
May 28, 2013
Date of Patent:
November 10, 2020
Assignee:
CHEIL INDUSTRIES, INC.
Inventors:
Seong Ryong Nam, Seung Jib Choi, Ji Hye Kwon, Yeon Soo Lee, Ji Yeon Lee, Chang Min Lee
Abstract: The present application relates to compounds of a formula (I), to the use thereof in organic electroluminescent devices, and to processes for preparing these compounds.
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:
February 7, 2019
Date of Patent:
September 1, 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: 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