Idemitsu Kosan Company, Limited

Yumiko Mizuki

Chishio Hosokawa

Masahiro Kawamura

Hirokatsu Ito

Tasuku Haketa

Tomoharu Hayama

Masakazu Funahashi

Kazuki Nishimura

Nobuhiro Yabunouchi

Mitsunori Ito

Hiroyuki Saito

Toshinari Ogiwara

Yuichiro Kawamura

Tetsuya Inoue

Kei Yoshida

Mitsuru Eida

Kumiko Hibino

Hitoshi Kuma

Ryota Takahashi

Ryohei Hashimoto

Tomoki Kato

Takushi Shiomi

Sayaka Mizutani

Tetsuya Masuda

Yu Kudo

Takeshi Ikeda

Yoichi Ikeda

Satomi Tasaki

Masami Watanabe

Masatoshi Saito

Kiyoshi Ikeda

Yoriyuki Takashima

Annemarie Wolleb

Hideaki Nagashima

Natalia Chebotareva

Mitsuru Shibata

Akinori Yomogita

Yuichi Nishimae

The present invention relates to a compound of formula (I), wherein R, R, Rand Rare each independently hydrogen or R, with proviso that a pair of two substituents selected from Rand R, Rand R, and Rand Ris linked to one another and forms a group of formula (II); a material for an organic electroluminescence device comprising at least one compound of formula (I); an organic electroluminescence device which comprises an organic thin film layer be-tween an anode and a cathode, wherein the organic thin film layer comprises one or more layers and comprises a light emitting layer, and at least one layer of the organic thin film layer comprises at least one compound of formula (I); and an electronic equipment comprising the inventive organic electroluminescence device. 

Specific ladder type compounds for organic light emitting devices

An organic electroluminescence device includes: an anode; an emitting layer; and a cathode, the emitting layer containing a first material, a second material and a third material, the first material being a fluorescent material, the second material being a delayed fluorescent material, the third material having a singlet energy larger than a singlet energy of the second material.

Organic electroluminescent element and electronic device

An organic electroluminescence device includes: a cathode; an anode; and an organic thin-film layer disposed between the cathode and the anode, the organic thin-film layer having one or more layers including an emitting layer, in which the emitting layer includes a first material represented by the following formula (1) and a second material in a form of a fluorescent dopant material.

Organic electroluminescence device

Specifically substituted ladder type compounds of formula (I) wherein A is formula (II) a material for an organic electroluminescence device comprising at least one compound of formula (I), and an organic electroluminescence device which comprises one or more organic thin film layers including an emitting layer between a cathode and an anode, wherein at least one layer of the organic thin film layers comprises at least one compound of formula (I). 

Specifically substituted ladder type compounds for organic light emitting devices

Provided are: an aromatic amine derivative in which a terminal substituent such as a dibenzofuran ring or a dibenzothiophene ring is bonded to a nitrogen atom directly or through an arylene group or the like; an organic electroluminescence device including an organic thin film layer formed of one or more layers including a light emitting layer and interposed between a cathode and an anode in which a layer of the organic thin film layer contains the aromatic amine derivative by itself or as a component of a mixture, and the device has a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.

Aromatic amine derivative and organic electroluminescent device using the same

A compound represented by formula (1): wherein Rto R, Rto R, Lto L, a to c, n, and Ar are as defined in the description,provides an organic electroluminescence device having an emission efficiency and a device lifetime further improved.

Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device

An aromatic amine derivative represented by the following formula (1) wherein at least one of Arto Aris a heterocyclic group represented by the following formula (2) wherein Xis an oxygen atom or a sulfur atom. 

Aromatic amine derivative, and organic electroluminescent element comprising the same

An organic light-emitting medium including a pyrene derivative represented by the following formula (1) and a phenyl-substituted anthracene derivative represented by the following formula (2): wherein Arto Arare independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms or a substituted or unsubstituted heteroaryl group having 5 to 20 ring atoms.

Pyrene derivative, organic light-emitting medium, and organic electroluminescent element containing pyrene derivative or organic light- emitting medium

A compound is represented by a formula (1). In the formula (1); Ar represents an aromatic hydrocarbon group or a heterocyclic group having 4 or more fused rings and 22 or less ring atoms; Ar optionally has a substituent; Ris a substituted or unsubstituted aromatic hydrocarbon group; when Ris an aromatic hydrocarbon group having a substituent, the substituent is not a heterocyclic group; Xrepresents a nitrogen atom or a carbon atom bonded with R(CR); Rrepresents a hydrogen atom or a substituent; Lrepresents a single bond or a linking group; Xand Xeach independently represent a nitrogen atom or a carbon atom bonded with R(CR); Rand Reach independently represent a hydrogen atom or a substituent; and Lis a linking group. 

Provided are an organic EL device having a high emission efficiency, a material for organic EL devices, which is capable of realizing the same, and the like. More specifically, provided are a compound represented by the following formula (1), a material for organic electroluminescence devices, which contains the compound, an organic electroluminescence device using the compound, and an electronic equipment provided with the organic electroluminescence device: 

Compound, material for organic electroluminescence element, organic electroluminescence element, and electronic device

A compound is represented by a formula (100) below, where X, Xand Xare each independently a nitrogen atom or a carbon atom bonded with R, Y is an oxygen atom, a sulfur atom and the like, R, R, R, Rand Rare each a hydrogen atom or a substituent, Lis a single bond or a linking group, and Lis a linking group. 

Compound, organic electroluminescence element material, organic electroluminescence element and electronic device

A compound represented by the following formula (1): 

Compound, material for organic electroluminescence device, organic electroluminescence device and electronic apparatus

The present invention provides a material useful as an organic electroluminescence device material, and particularly provides: a compound having, as a substituent, a substituted aromatic heterocyclic group having a specific structure wherein any of the 1-position to 6-position or the 7-position to 10-position of fluoranthene is substituted with a nitrogen atom; a material for low-voltage organic electroluminescence devices using the compound; and an organic electroluminescence device and an electronic equipment using the material.

Growing community of inventors

Sodegaura, Japan

Yumiko Mizuki