Idemitsu Kosan Company, Limited

Joled Inc.

Sony Corporation

Tdk Corporation

Tdk Corporaiton

Emiko Kambe

Yasunori Kijima

Tadahiko Yoshinaga

Masato Nakamura

Shigeyuki Matsunami

Akifumi Nakamura

Masahiro Kawamura

Masakazu Funahashi

Masahiro Shinkai

Kazuki Nishimura

Hiroshi Yamamoto

Atsushi Monden

Tetsushi Inoue

Tetsuya Masuda

Sayaka Mizutani

Sumiko Kitagawa

Satoshi Shirai

Jun Endo

Yusuke Takahashi

Ichinori Takada

Akira Ebisawa

Hiroaki Toyoshima

Chishio Hosokawa

Jiro Yamada

Toshihiro Iwakuma

Hideki Kobayashi

Kenichi Fukuoka

Hitoshi Kuma

Yoshiaki Takahashi

Tasuku Haketa

Takayasu Sado

Hironobu Morishita

Toshiaki Imai

Takahiko Suzuki

Keitaro Yamada

Yoshiaki Imai

An organic electroluminescence device includes an emitting region provided between a cathode and an anode, a first anode side organic layer, a second anode side organic layer, and a third anode side organic layer, in which the emitting region includes at least one emitting layer, the second anode side organic layer contains at least one compound different from the compound contained in the third anode side organic layer, the third anode side organic layer has a film thickness of 20 nm or more, and a difference NM−NMbetween a refractive index NMof a constituent material contained in the second anode side organic layer and a refractive index NMof a constituent material contained in the third anode side organic layer satisfies a relationship of a numerical formula (Numerical Formula N1) below,NM−NM≥0.05  (Numerical Formula N1).

Organic electroluminescent element, organic electroluminescent display device, and electronic device

An organic electroluminescence device includes a first emitting unit, a first charge generating layer, a second emitting unit, a second charge generating layer, and a third emitting unit provided between an anode and a cathode in this order from the anode, in which the second charge generating layer includes an N layer close to the anode and a P layer close to the cathode, the third emitting layer contains a blue fluorescent compound, at least one of the first or second emitting layer contains a blue fluorescent compound, the third emitting unit includes a hole transporting zone between the second charge generating layer and the third emitting layer, the hole transporting zone is in contact with the second charge generating layer, and a thickness of the hole transporting zone is in a range from 5 nm to 40 nm and smaller than a thickness of the N layer.

Organic electroluminescent element and electronic device drivable at low voltage with improved lifetime

Organic electroluminescent device using aryl amine derivative containing heterocycle

An organic electroluminescence device includes: an emitting region provided between a cathode and an anode; and a hole transporting zone provided between the anode and the emitting region, in which the hole transporting zone includes at least a first anode side organic layer and a second anode side organic layer, the first anode side organic layer is in direct contact with the second anode side organic layer, a total film thickness of the hole transporting zone is in a range from 20 nm to 80 nm, the first anode side organic layer contains no compound contained in the second anode side organic layer, the first anode side organic layer contains a first organic material and a second organic material, the first organic material is different from the second organic material, and a content of the first organic material in the first anode side organic layer is less than 50 mass %.

Organic electroluminescence device, light emitting device, organic electroluminescence display device and electronic device

A top emission organic EL device includes an anode, hole transporting zone, emitting layer, electron transporting zone, and cathode in this order. The hole transporting zone includes: a first layer interposed between the anode and the emitting layer; and a second layer interposed between the first layer and the emitting layer. The first layer contains a first compound and the second layer contains a second compound. A film thickness of the first layer and the second layer satisfies a formula (1) and (2), respectively. A hole mobility &#x3bc;of the first compound satisfies a formula (3) and a hole mobility &#x3bc;of the second compound satisfies a formula (4),100 nm&#x2264;1&#x2264;300 nm&#x2003;&#x2003;(1)1 nm&#x2264;2&#x2264;20 nm&#x2003;&#x2003;(2)1.0&#xd7;10[cm]&#x2264;&#x3bc;&#x2264;1.0&#xd7;10[cm]&#x2003;&#x2003;(3)1.0&#xd7;10[cm]&#x2264;&#x3bc;&#x2264;1.0&#xd7;10[cm]&#x2003;&#x2003;(4).

Top emission organic electroluminescent element, organic electroluminescent light emitting device, and electronic device

An organic EL device of the disclosure includes: a first electrode and a second electrode; and an organic layer provided between the first electrode and the second electrode. The organic layer includes a light-emitting layer. The organic layer includes, between the first electrode and the light-emitting layer, a first layer that contains a polycyclic aromatic hydrocarbon compound having orientation, and a second layer that contains a larger amount of nitrogen element than the first layer.

Organic EL device and display unit

An organic electroluminescent device including: an anode, a cathode, an emitting layer formed of an organic compound and interposed between the cathode and the anode, and two or more layers provided in a hole-injecting/hole-transporting region between the anode and the emitting layer; of the layers which are provided in the hole-injecting/hole-transporting region, a layer which is in contact with the emitting layer containing a compound represented by the formula (1); and of the layers which are provided in the hole-injecting/hole-transporting region, a layer which is interposed between the anode and the layer which is in contact with the emitting layer containing an amine derivative represented by the formula (2). 

An organic electroluminescence device including: an anode; a cathode; two or more emitting units that are disposed between the anode and the cathode, each unit having an emitting layer; and a charge-generating layer that is disposed between the emitting units, wherein the charge-generating layer includes an N layer nearer to the anode and a P layer nearer to the cathode, and the N layer includes a compound represented by the following formula (I) or (II): 

Organic electroluminescent device

An organic electroluminescence device including: an anode; a cathode; two or more emitting units that are disposed between the anode and the cathode, each unit having an emitting layer; and a charge-generating layer that is disposed between the emitting units, wherein the charge-generating layer comprises an N layer nearer to the anode and a P layer nearer to the cathode, and the P layer comprises a compound represented by the following formula (I). 

Organic electroluminescent element

Provided is an ink composition including the following components (A), (B), and (C). The component (A) is an anthracene derivative represented by the following formula (A1). The component (B) is an aromatic amine derivative represented by the following formula (B1) (in the formula (B1), one or more of Ar1 to Ar4 are a heterocyclic group represented by the following formula (B1')). The component (C) is a solvent represented by the following formula (C1) and having a boiling point of 110&#xb0; C. or higher and a solubility of 1 wt % or less in water. 

Ink composition, organic electroluminescence element, and electronic apparatus

An organic electroluminescence device including: an anode; one or more organic thin film layers including an emitting layer; a donor-containing layer; an acceptor-containing layer; and a light-transmissive cathode in this order, wherein the donor-containing layer comprises a compound represented by the following formula (I) or (II): 

Organic electroluminescence device

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Kanagawa, Japan

Emiko Kambe