Idemitsu Kosan Company, Limited

Universal Display Corporation

Joled Inc.

Mitsunori Ito

Kazuki Nishimura

Masahiro Kawamura

Toshinari Ogiwara

Tetsuya Inoue

Toshihiro Iwakuma

Yoriyuki Takashima

Chishio Hosokawa

Kiyoshi Ikeda

Kumiko Hibino

Kenichi Fukuoka

Masakazu Funahashi

Yumiko Mizuki

Kei Yoshida

Tomoki Kato

Kumiko Gorai

Takayasu Sado

Hiroshi Yamamoto

Satoshi Hachiya

Julia J Brown

Michael Stuart Weaver

Hisayuki Kawamura

Michael Stewart Weaver

Masahide Matsuura

Yuichiro Kawamura

Mineyuki Kubota

Shigeru Matsuo

Hironori Kawakami

Hidetoshi Ono

Akinori Yomogita

Mitsuru Eida

Tadahiko Yoshinaga

Hitoshi Yamamoto

Takashi Arakane

Brian D'Andrade

Yukitoshi Jinde

Toshiki Matsumoto

Seiji Tomita

Kimiko Hibino

Anthracene derivatives each having a structure including an anthracene skeleton, a phenanthrene skeleton selected from among various phenanthrene skeletons different in bonding site which is bonded to the 9-position of the anthracene skeleton and a group selected from among various aryl groups and so on which is bonded to the 10-position of the anthracene skeleton. Organic EL devices made by using the derivatives exhibit high light emission efficiency and a long life.

Anthracene derivatives, luminescent materials and organic electroluminescent devices

A biscarbazole derivative having a specific group, which is represented by formula (1); and an organic electroluminescence device in which a plurality of organic thin-film layers including a light emitting layer are disposed between a cathode and an anode, and at least one of the organic thin-film layers include the biscarbazole derivative. The organic electroluminescence device exhibits high emission efficiency and has a long lifetime. In formula (1), each of Aand Aindependently represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms; each of Yto Yindependently represents C(R) or a nitrogen atom; each of R groups independently represents a hydrogen atom, etc.; and each of Land Lindependently represents a single bond, etc.; provided that at least one of A, Aand R represents a substituted or unsubstituted fluoranthenyl group, etc.

Biscarbazole derivative and organic electroluminescent element using same

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

The organic electroluminescence device includes an anode, a cathode, and at least an emitting layer between the anode and the cathode. The emitting layer includes a first host material, a second host material, and a phosphorescent dopant material. The first host material is a compound represented by a formula (1) below and the second host material is a compound represented by a formula (2) below. 

Organic electroluminescence element, and material for organic electroluminescence element

An organic EL multi-color emitting device including a substrate, and a first light-emitting element and a second light-emitting element arranged on the surface of the substrate; the first light-emitting element including, between an anode and a cathode, a first organic layer, a second organic layer and a third organic layer in this sequence in a direction perpendicular to the surface of the substrate; the second light-emitting element including, between an anode and a cathode, a second organic layer and a third organic layer in this sequence in a direction perpendicular to the surface of the substrate; the first organic layer including a first light-emitting dopant; the third organic layer including a second light-emitting dopant; the second organic layer including any of (A) a compound including an arylamine site, and a furan site or a thiophene site, (B) a compound including an arylamine site and a site comprising a nitrogen-containing six-membered ring structure, (C) a compound including a carbazole site, and a furan site or a thiophene site, and (D) a compound including a carbazole site and a site including a nitrogen-containing six-membered ring structure.

Organic EL multi-color light-emitting device

Provided are an organic electroluminescence device having high current efficiency and a long lifetime, and a biscarbazole derivative for realizing the device. The biscarbazole derivative has a specific substituent. The organic EL device has a plurality of organic thin-film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin-film layers contains the biscarbazole derivative.

Biscarbazole derivatives and organic electroluminescence device employing the same

A biscarbazole derivative of the invention is represented by a formula (1) below.  In the formula (1): Arepresents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; Arepresents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; Xand Xeach are a linking group; Yto Yeach represent a substituent; p and q represent an integer of 1 to 4; and r and s represent an integer of 1 to 3.

Biscarbazole derivative, material for organic electroluminescence device and organic electroluminescence device using the same

A biscarbazole derivative having a specific group, which is represented by formula (1): and an organic electroluminescence device in which a plurality of organic thin-film layers including a light emitting layer are disposed between a cathode and an anode, and at least one of the organic thin-film layers include the biscarbazole derivative. The organic electroluminescence device exhibits high emission efficiency and has a long lifetime. In formula (1), each of Aand Aindependently represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms; each of Yto Yindependently represents C(R) or a nitrogen atom; each of R groups independently represents a hydrogen atom, etc.; and each of Land Lindependently represents a single bond, etc.; provided that at least one of A, Aand R represents a substituted or unsubstituted fluoranthenyl group, etc.

Provided are a polymer compound, which comprises a copolymer containing at least a unit B, and a unit A and/or a unit C referring to repeating units A, B and C, and which has a weight-average molecular weight of from 50,000 to 1,500,000; a material for electronic devices and a material for organic electroluminescent devices comprising the compound; an organic electroluminescent device having an anode, a cathode and an organic thin film layer, wherein at least one organic thin film layer contains the polymer compound; a coating liquid containing the polymer compound and a solvent; and a method for producing an organic electroluminescent device using the coating liquid. Also provided is a polymer compound suitable to a coating method; a material for electronic devices and a material for organic electroluminescent devices comprising the compound; and an organic EL device, a coating liquid and a method for producing an organic EL device using the compound.

Polymer compound, material for electronic elements, material for organic electroluminescent elements, and organic electroluminescent element

An aromatic amine derivative represented by the following formula (1). In the formula, Arand Arare independently a substituted or unsubstituted aryl group including 6 to 60 ring carbon atoms; Lis a substituted or unsubstituted arylene group including 6 to 60 ring carbon atoms; Lis a single bond or a substituted or unsubstituted arylene group including 6 to 60 ring carbon atoms; Rand Rare independently a substituted or unsubstituted aryl group including 6 to 60 ring carbon atoms or the like; n is an integer of 0 to 3; m is an integer of 0 to 4; Xto Xare independently a nitrogen atom or CR; provided that at least one of Xto Xare a nitrogen atom; Ris a hydrogen atom, a substituted or unsubstituted aryl group including 6 to 60 ring carbon atom or the like. 

Aromatic amine derivative and organic electroluminescent element

Provided are a copolymer having plural repeating units each having a specific structure, and having a weight-average molecular weight of from 100,000 to 3,000,000; a material for organic electronic devices and a material for organic electroluminescent devices containing the copolymer; a solution containing the copolymer and a solvent; and an organic electroluminescent device using the material for organic electroluminescent devices. The copolymer has not only charge transporting properties but also solubility and is suitable for forming a film according to a coating method. The present invention provides the copolymer, and a material for organic electronic devices and a material for organic electroluminescent devices containing the copolymer, an organic electroluminescent device, and a solution containing the copolymer.

Copolymer, material for organic electronic element, material for organic electroluminescent element, and organic electroluminescent element

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Sodegaura, Japan

Mitsunori Ito