Idemitsu Kosan Company, Limited

Nonocarrier Co., Ltd.

Hiroyuki Saito

Masahiro Kawamura

Hirokatsu Ito

Yuichiro Kawamura

Yumiko Mizuki

Hitoshi Kuma

Yukitoshi Jinde

Takeshi Ikeda

Kazuki Nishimura

Tomoki Kato

Kenichi Fukuoka

Takayasu Sado

Takashi Arakane

Sayaka Mizutani

Yoichi Ikeda

Ryo Naraoka

Chishio Hosokawa

Masakazu Funahashi

Hiroshi Yamamoto

Yoshiaki Takahashi

Ryota Takahashi

Masaki Numata

Tetsuya Masuda

Toshio Sakai

Yasuki Kato

Mitsunori Harada

Tatsuyuki Hayashi

The compound represented by formula (1): wherein A, B, R, and Rare as defined in the description, provides organic electroluminescence (EL) devices having a high emission efficiency when operated at low voltage and a long lifetime and electronic devices including such organic EL devices.

Organic electroluminescent element and electronic device

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 fused amine compound including a furan ring or a thiophene ring and an organic electroluminescence device employing the amine compound. The organic electroluminescence device includes a cathode, an anode, and one or more organic thin film layers which are disposed between the cathode and the anode. The organic thin film layers include a light emitting layer and at least one layer of the organic thin film layers includes at least one amine compound.

Oxygen-containing fused ring amine compound, sulfur-containing fused ring amine compound and organic electroluminescence device

An organic electroluminescence device includes an anode, a cathode, and an emitting layer, in which the emitting layer contains a first compound, a second compound, and a third compound, a singlet energy S(M1) of the first compound and a singlet energy S(M2) of the second compound satisfy a numerical formula (Numerical Formula 1) below, an electron affinity Af(M1) of the first compound and an electron affinity Af(M2) of the second compound satisfy a numerical formula (Numerical Formula 2) below, and a triplet energy T(M1) of the first compound satisfies a numerical formula (Numerical Formula 3) below,(2)&#x2265;(1)&#xd7;0.95&#x2003;&#x2003;(Numerical Formula 1)(2)&#x2212;(1)&#x2265;0.2&#x2003;&#x2003;(Numerical Formula 2)(1)&#x2264;2.0&#x2003;&#x2003;(Numerical Formula 3).

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

An anthracene derivative represented by the following formula (1): wherein in the formula (1), Lis selected from a single bond and a linking group, and the linking group is selected from a divalent arylene group, a divalent heterocyclic group, and a group formed by linking of 2 to 4 of divalent arylene groups and/or divalent heterocyclic groups. Aris selected from the following formulas (2) and (3). In the formulas (2) and (3), X is selected from an oxygen atom and a sulfur atom. In the formula (2), any one of Rto Ris used for bonding to L. In the formula (3), any one of Rto Ris used for bonding to L. Aris selected from a substituted or unsubstituted aryl group including 6 to 50 ring carbon atoms and a substituted or unsubstituted heterocyclic group including 5 to 50 ring atoms. 

Anthracene derivative and organic electroluminescence element using same

An organic electroluminescence device according of the invention includes an anode, a cathode, and at least a first emitting layer and a second emitting layer interposed between the anode and the cathode. The first emitting layer includes a first host material and a first dopant material. The second emitting layer includes a second host material, a third host material and a second dopant material.

Organic electroluminescent element

An organic electroluminescence device sequentially includes an anode, an emitting layer, an electron-transporting region, and a cathode, the electron-transporting region including an electron-transporting material that includes a cyano group and an aromatic ring group.

Organic electroluminescence device

An oxygen-containing fused ring derivative represented by the following formula (1) wherein Aris an m-valent fused ring group in which four or more rings including one or more rings selected from a furan ring and a pyran ring are fused and HAr is any of the nitrogen-containing heterocyclic group represented by the following formulas (2) to (5): 

Oxygen-containing fused ring derivative and organic electroluminescence device comprising the same

A top-emitting organic electroluminescence device including sequentially a first electrode, one or more organic layers comprising an emitting layer, a second electrode and a capping layer, wherein the capping layer comprises a compound represented by the following formula (1): 

An organic electroluminescence device includes a pair of electrodes and an organic compound layer therebetween. The organic compound layer includes an emitting layer. The emitting layer includes a pyrene derivative represented by formula (1), such that a content of the pyrene derivative in the emitting layer is 50 to 100 wt %. Arand Arare independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms. Xand Xto Xare a hydrogen atom. Xis a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, provided that Aror Aris different from X. In a case where any of Ar, Ar, and Xis the aryl group having a substituent, the substituent is independently an alkyl group, a cycloalkyl group, an aryl group, a silyl group, or a cyano group. 

Organic electroluminescent element using pyrene derivative

An organic electroluminescence device that includes an anode, an emitting layer that includes a host and a fluorescent dopant, an electron transporting zone, a cathode, a blocking layer adjacent to the emitting layer in the electron transporting zone where the blocking layer includes an aromatic heterocyclic derivative with an azine ring and where the triplet energy E(eV) of the aromatic heterocyclic derivative is larger than a triplet energy E(eV) of the host.

A benzo[k]fluoranthene derivative represented by the following formula (1): wherein Rto Rare as defined in the specification. The benzo[k]fluoranthene derivative represented by the formula (1) reduces a driving voltage of an organic electroluminescence device and makes it possible to realize light emission with high efficiency and long lifetime.

Benzo[k]fluoranthene derivative and organic electroluminescence device containing the same

A compound is shown by the following formula (1). wherein l, m, and n are independently an integer from 1 to 3, 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 30 ring atoms, Ar, Ar, and Arare independently a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroarylene group having 5 to 30 ring atoms, and p is an integer from 0 to 2, and Arand N are bonded via a single bond when p is 0, provided that at least one of Arto Aris substituted with a substituted silyl group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted cycloalkyl group having 3 to 10 carbon atoms, and at least one of Arto Aris substituted with a cyano group.

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Sodegaura, Japan

Hiroyuki Saito