Idemitsu Kosan Company, Limited

Hiroaki Itoi

Yuki Nakano

Satomi Tasaki

Taro Yamaki

Kazuki Nishimura

Yuichiro Kawamura

Tetsuya Masuda

Hirokatsu Ito

Tasuku Haketa

Yu Kudo

Yusuke Takahashi

Ryoji Maeda

Shota Tanaka

Takamoto Morita

Yongguk Lee

An organic electroluminescence device including a cathode, an anode, and an emitting layer disposed between the cathode and the anode, wherein the emitting layer contains one or both of the compound represented by the following formula (1A) and the compound represented by the following formula (1B) and a compound represented by any one of the specific formulas (11), (21), (31), (41), (51), (61), (71), and (81).

Organic electroluminescence device and electronic apparatus equipped with the same

A compound represented by the following formula (1), provided that at least one of Rto Ris a deuterium atom; and at least one of Arand Aris a substituted or unsubstituted fused aryl group in which only four or more benzene rings are fused.

Compound, and organic electroluminescence device and electronic apparatus using the same

An organic electroluminescence device including: an anode, a cathode, and at least one emitting layer between the cathode and the anode, wherein the emitting layer contains a first host material, a second host material, and a dopant material, the first host material is a compound having at least one deuterium atom, and the emitting layer contains the first host material in the proportion of 1% by mass or more.

Organic electroluminescence device and electronic apparatus

An organic electroluminescence device comprising: a cathode, an anode, and an organic layer disposed between the cathode and the anode, wherein the organic layer comprises an emitting layer and a first layer, the first layer is disposed between the cathode and the emitting layer, the emitting layer comprises a compound represented by the following formula (1), and the first layer comprises a compound represented by the following formula (BE1):

Organic electroluminescence device and electronic apparatus provided with the same

An organic electroluminescence device including: a cathode, an anode, and an organic layer disposed between the cathode and the anode, wherein the organic layer comprises an emitting layer and a first layer, the first layer is disposed between the cathode and the emitting layer, the emitting layer comprises one or both of a compound represented by the following formula (1A) and a compound represented by the following formula (1B), and the first layer comprises a compound represented by the following formula (BE1):

An organic electroluminescence device includes an anode, a cathode, a first emitting layer, and a second emitting layer disposed between the first emitting layer and the cathode, the first emitting layer containing a first host material in a form of a first compound represented by a formula (101) below, the second emitting layer containing a second host material in a form of a second compound represented by a formula (2) below, the first emitting layer and the second emitting layer being in direct contact with each other.

Organic electroluminescent element and electronic device

A compound represented by the following formula (1) wherein the symbols are as defined in the description, and an organic electroluminescent device containing the compound. 

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

An organic electroluminescence device includes an emitting region provided between an anode and a cathode, in which the emitting region includes a first emitting layer and a second emitting layer, a ratio D/Dof a film thickness of the first emitting layer Dto a film thickness of the second emitting layer Dis in a range from 2/3 to 3/2, the first emitting layer contains a first host material and a first emitting compound, the second emitting layer contains a second host material and a second emitting compound, and the first host material has a group represented by a formula (10) below and is a compound represented by a formula (1) below. 

Organic electroluminescence device, electronic device, and compound

An organic electroluminescence device comprising: an anode, a cathode, and an emitting region between the anode and the cathode, wherein the emitting region comprises a first emitting layer and a second emitting layer, the first emitting layer and the second emitting layer are directly adjacent to each other, the first emitting layer is between the anode and the second emitting layer, and one of the first emitting layer and the second emitting layer comprises a compound having at least one deuterium atom.

An organic electroluminescence device includes an anode, a cathode, a first emitting layer, and a second emitting layer disposed between the first emitting layer and the cathode, the first emitting layer containing a first host material in a form of a first compound represented by a formula (101) below, the second emitting layer containing a second host material in a form of a second compound represented by a formula (2) below, the first emitting layer and the second emitting layer being in direct contact with each other. 

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Sodegaura, Japan

Hiroaki Itoi