Abstract: [Problem] To provide: a novel compound which has high mobility and on/off ratio and is useful for organic electronic devices; and a method for producing the compound. [Solution] A condensed polycyclic aromatic compound which is represented by general formula (1). (In the formula, A represents a 1,5-dihydronaphthalene ring or a 2,6-dihydronaphthalene ring; each of R1, R2, R3 and R4 independently represents a hydrogen atom, a halogen atom, a substituted or unsubstituted aliphatic hydrocarbon group, a substituted or unsubstituted alicyclic hydrocarbon group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted hydrocarbon oxy group, a substituted or unsubstituted ester group, a substituted or unsubstituted acyl group, or a substituted or unsubstituted cyano group; and each of X1 and X2 independently represents an oxygen atom, a sulfur atom or a selenium atom.
Abstract: A nitrogen-containing heterocyclic derivative in which an indole structure is fused to a benzophenanthrene ring is a novel material useful as a material for organic electroluminescence devices for the production of organic electroluminescence devices and electronic equipment.
Abstract: An anthracene derivative represented by a general formula (1) and an organic compound represented by a general formula (8) are provided. Further, by use of the anthracene derivative represented by the general formula (1), a light-emitting element with high emission efficiency can be obtained. Furthermore, by use of the anthracene derivative represented by the general formula (1), a light-emitting element that emits blue light with high color purity can be obtained.
Type:
Grant
Filed:
September 29, 2016
Date of Patent:
November 28, 2017
Assignee:
SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Abstract: Provided are a compound for an organic optoelectric device represented by Chemical Formula 1, an organic light emitting diode including the same, and a display device including the organic light emitting diode. The structure of the compound for an organic optoelectric device represented by Chemical Formula 1 is described in the specification. The compound for an organic photoelectric device provides an organic light emitting diode having excellent electrochemical and thermal stability and improved life-span characteristics, and high luminous efficiency at a low driving voltage, and the compound for an organic photoelectric device may be appropriate for a solution process.
Abstract: A heterocyclic compound represented by Formula 1 below and an organic light-emitting device including the heterocyclic compound are described. In Formula 1, R1 to R4 may be each independently one of a hydrogen atom, a deuterium atom, C5-C60 alkyl, C5-C60 aryl and C6-C60 condensed polycyclic; L1 and L2 may be each independently one of a single bond, C5-C60 aryl, C3-C60 heteroaryl and C6-C60 condensed polycyclic; Ar1 and Ar2 may be each independently one of C5-C60 aryl, C3-C60 heteroaryl and C6-C60 condensed polycyclic; A, B, C and D may be each independently one of —CH? and —N?, excluding that all A, B, C and D are —CH?; and m and n may be each independently an integer of 0 to 3, excluding that all m and n are zero, wherein any of the above alkyl groups, aryl groups, condensed polycyclic groups and heteroaryl groups may be substituted or unsubstituted.
Abstract: The compound represented by the following general formula is useful as a light emitting material. Ar1 represents an arylene group, Ar2 and Ar3 represent an aryl group, and R1 to R8 represent a hydrogen atom or a substituent, provided that at least one of R1 to R8 represents a diarylamino group.
Abstract: An organic compound with characteristics excelling in hole-injecting/transporting performance and having an electron blocking ability, a highly stable thin-film state, and excellent heat resistance is provided as material for an organic electroluminescent device of high efficiency and high durability, and the organic electroluminescent device of high efficiency and high durability is provided using this compound. The compound of a general formula (Chemical Formula 1) having a substituted acridan ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes and one or more organic layers sandwiched between the pair of electrodes.
Abstract: A compound is represented by Formula 1, and an organic light-emitting device includes the compound. Embodiments of the compound have excellent electrical properties, high charge-transporting and emission capabilities, high glass transition temperature, and are capable of reducing crystallization. Embodiments of organic light-emitting devices including the compound have high efficiency, low driving voltage, high brightness, and long lifespan.
Type:
Grant
Filed:
October 16, 2014
Date of Patent:
October 31, 2017
Assignee:
Samsung Display Co., Ltd.
Inventors:
Seok-Hwan Hwang, Soo-Yon Kim, Jong-Woo Kim
Abstract: Objects are to provide the following: a substance that facilitates hole injection and has high triplet excitation energy; a light-emitting element having high emission efficiency using the substance that facilitates hole injection and has high triplet excitation energy; a light-emitting element having low driving voltage; and a light-emitting device, an electronic device, and a lighting device having low power consumption. Provided is a triazole derivative in which a dibenzothiophen-4-yl or dibenzofuran-4-yl group represented by General Formula (G2) is bonded to any one of Ar1 to Ar3 of a triazole derivative represented by General Formula (G1). In the formulas, A represents oxygen or sulfur, Ar1 to Ar3 separately represent a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and R1 to R7 separately represent hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms.
Type:
Grant
Filed:
June 3, 2016
Date of Patent:
October 31, 2017
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
Inventors:
Hiroshi Kadoma, Nobuharu Ohsawa, Satoshi Seo
Abstract: The present invention relates to compounds of formula a process for their production and their use in electronic devices, especially electroluminescent devices. When used as host material for phosphorescent emitters in electroluminescent devices, the compounds of formula I may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices.
Type:
Grant
Filed:
March 20, 2012
Date of Patent:
October 31, 2017
Assignee:
UDC Ireland Limited
Inventors:
Thomas Schäfer, Teresa Marina Figueira Duarte, Christian Schildknecht, Nicolle Langer, Ute Heinemeyer, Heinz Wolleb, Soichi Watanabe, Christian Lennartz, Gerhard Wagenblast, Annemarie Wolleb, Kristina Bardon, Flavio Luiz Benedito
Abstract: The invention relates to pyrimidine derivatives according to formula (I), and to organic electroluminescent devices comprising said pyrimidine derivatives as electron transport material.
Type:
Grant
Filed:
March 9, 2011
Date of Patent:
October 24, 2017
Assignee:
Merck Patent GmbH
Inventors:
Arne Buesing, Holger Heil, Teresa Mujica-Fernaud
Abstract: The present invention discloses an novel organic material is represented by the following formula (A) and organic EL device using the organic material as hole blocking layer (HBL), electron transport layer (ETL) or phosphorescent host can efficiently lower driving voltage, lower power consumption and increase the efficiency. The same definition as described in the present invention.
Abstract: A multilayer optical retardation compensation film having at least one positive C-plate and at least one negative C-plate is used in an LCD device. The multilayer film may have a substantially flat wavelength dispersion curve, or the multilayer film combined with other layers in the LCD device may have a substantially flat wavelength dispersion curve. Polymer films for the positive C-plate may be identified according to their absorbance maxima at certain wavelength ranges.
Type:
Grant
Filed:
April 2, 2014
Date of Patent:
October 10, 2017
Assignee:
AKRON POLYMER SYSTEMS
Inventors:
Frank W. Harris, Jiaokai Alexander Jing, Ted Calvin Germroth, Xiaoliang Joe Zheng, Brian Michael King, Dong Zhang, Thauming Kuo, Qifeng Zhou
Abstract: The present invention provides a novel compound capable of improving light emitting efficiency, stability, and lifespan of the element, an organic element using the same, and an electric device for the same.
Type:
Grant
Filed:
February 27, 2014
Date of Patent:
October 3, 2017
Assignee:
DUK SAN NEOLUX CO., LTD.
Inventors:
Jihun Byun, Yeonhee Choi, Kayoung Eom, Hyeryeong Kim, Yuri Kim, Junghwan Park, Hakyoung Lee
Abstract: A condensed-cyclic compound of Formula 1: wherein, in Formula 1, groups X1, X11 to X14, L21, L22, R21, and R21, and variables a21, a22, b21, b22, c21, and c22 are described in the specification.
Type:
Grant
Filed:
June 10, 2014
Date of Patent:
September 19, 2017
Assignees:
SAMSUNG ELECTRONICS CO., LTD., CHEIL INDUSTRIES INC.
Inventors:
Chang-ju Shin, Young-kwon Kim, Hyung-sun Kim, Moo-jin Park, Joo-hee Seo, Eun-sun Yu, Byoung-ki Choi, Kyu-young Hwang
Abstract: A heterocyclic compound represented by Formula 1 and an organic light-emitting device including the same. The heterocyclic compound represented by Formula 1 has excellent light emitting characteristics and high charge transporting capabilities.
Type:
Grant
Filed:
March 18, 2014
Date of Patent:
September 12, 2017
Assignee:
SAMSUNG DISPLAY CO., LTD.
Inventors:
Sun-Young Lee, Yoon-Hyun Kwak, Bum-Woo Park, Jong-Won Choi, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee