Idemitsu Kosan Company, Limited

Idemitsu Koasn Co., Ltd.

Yuichiro Kawamura

Toshinari Ogiwara

Masahiro Kawamura

Hirokatsu Ito

Hitoshi Kuma

Hiroyuki Saito

Kazuki Nishimura

Yumiko Mizuki

Kei Yoshida

Yukitoshi Jinde

Chishio Hosokawa

Masakazu Funahashi

Satomi Tasaki

Ryota Takahashi

Masatoshi Saito

Kei Yoshizaki

Tomoki Kato

Yuki Nakano

Kenichi Fukuoka

Yoshiaki Takahashi

Taro Yamaki

Tetsuya Masuda

Hironobu Morishita

Sayaka Mizutani

Hiroaki Itoi

Toshihiro Iwakuma

Mitsunori Ito

Takayasu Sado

Ryohei Hashimoto

Takeshi Ikeda

Hiroshi Yamamoto

Hidetsugu Ikeda

Tetsuya Inoue

Kengo Kishino

Yoriyuki Takashima

Takashi Arakane

Keita Seda

Jun Endo

Keiichi Yasukawa

Ryoji Maeda

Yongguk Lee

Fabrice Eckes

Compounds of formulae (2-7) or (2-9) are provided: Also provided are organic electroluminescence (EL) devices containing the compounds 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

A compound is represented by a formula (2) below and has at least one group represented by a formula (20) below. In the formula (2): m is 0, 1, 2, or 3, n is 0, 1, 2 or 3, and m+n is an integer of 1 or more.

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

An organic EL display device includes an anode and a cathode and includes a blue organic EL device, a green organic EL device, and a red organic EL device. The blue organic EL device includes a first emitting layer. The green organic EL device includes a second emitting layer. The red organic EL device includes a third emitting layer. The organic EL devices include a fourth emitting layer as a common layer. The fourth emitting layer is in direct contact with each of the emitting layers). The first emitting layer contains a compound represented by a formula (1) and having at least one group represented by a formula (11). The fourth emitting layer contains a second compound represented by a formula (2).

Organic EL display device, and electronic apparatus

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

Organic EL devices having excellent performance and electronic devices comprising the organic EL devices are provided. The organic EL device comprises a cathode, an anode, and an organic layer disposed between the cathode and the anode, wherein the organic layer comprises one or more layers that comprise a fluorescent emitting layer and the fluorescent emitting layer comprises a first compound represented by formula (P) and a second compound that is not the same as the first compound. The electronic device comprises the organic EL device. wherein, π1, π2, Z, R, R, m, and n are as defined in the description.

Organic electroluminescence element and electronic device

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.

An organic electroluminescence device includes: an anode; an emitting layer; and a cathode. The emitting layer contains a first compound and a second compound, the first compound being a delayed fluorescent compound, the second compound being a compound represented by a formula (2).

Disclosed herein is an organic EL light-emitting apparatus including a plurality of pixels including a first pixel and a second pixel. The first pixel and second pixel share a common layer. The pixel other than the second pixel includes a non-common layer. The common layer contains a delayed fluorescent compound. The second pixel is configured to emit a light from the common layer. The pixel other than the second pixel is configured to emit a light from the non-common layer.

Organic EL light-emitting apparatus and electronic instrument

A compound is represented by a formula (20) below. In the formula (20), a least one pair of a pair of Xand X, a pair of Xand Xand a pair of Xand Xare carbon atoms to be bonded to the structure represented by the formula (20a), 

Compound, composition, organic electroluminescent element, and electronic appliance

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.

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, an emitting layer, and a cathode. The emitting layer contains a delayed fluorescent first compound, a fluorescent second compound, and a third compound represented by Cz-Az. The second compound emits light with a main peak wavelength ranging from 430 nm to 540 nm. Az is a cyclic structure selected from the group consisting of a substituted or unsubstituted pyridine ring, a substituted or unsubstituted pyrimidine ring, a substituted or unsubstituted triazine ring, and a substituted or unsubstituted pyrazine ring. Cz is represented by a formula (3B) below. 

Organic electroluminescent element, and electronic apparatus

An organic electroluminescence device includes an anode, an emitting layer, and a cathode, in which the emitting layer contains a first compound represented by a formula (1) and a fluorescent second compound. A singlet energy S(M1) of the first compound is larger than a singlet energy S(FL) of the fluorescent second compound. A is a group represented by a formula (1). 

Organic electroluminescent element, electronic device, and compound

An organic EL apparatus () includes a plurality of pixels including a first pixel () and a second pixel (), in which the first pixel () has a first emitting layer () containing a fluorescent first compound, the second pixel () has a second emitting layer () containing a delayed fluorescent second compound, and the first pixel () and the second pixel () share a common layer () extending across the first pixel () and the second pixel ().

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Sodegaura, Japan

Yuichiro Kawamura