Idemitsu Kosan Company, Limited

Joled Inc.

Idemistu Kosan Co., Ltd.

Kiyoshi Ikeda

Mitsunori Ito

Tetsuya Inoue

Hironori Kawakami

Kazuki Nishimura

Kei Yoshida

Chishio Hosokawa

Masahiro Kawamura

Kumiko Hibino

Toshinari Ogiwara

Akinori Yomogita

Tomoki Kato

Takayasu Sado

Takashi Kashiwamura

Hidetoshi Ono

Masakazu Funahashi

Nobuhiro Yabunouchi

Masahide Matsuura

Masami Watanabe

Taro Yamaki

Yoriyuki Takashima

Takashi Arakane

Shigeru Matsuo

Kumiko Gorai

Toshihiro Iwakuma

Yumiko Mizuki

Kenichi Fukuoka

Mitsuru Eida

Tadahiko Yoshinaga

Tadashi Kusumoto

Hisahiro Higashi

Toshiki Matsumoto

Keiko Yamamichi

Fumio Okuda

Bunji Sawano

Takahiko Ochi

Yoshimitsu Tanabe

Hiroya Yasuda

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

Specifically substituted ladder type compounds of formula (I) wherein A is formula (II) a material for an organic electroluminescence device comprising at least one compound of formula (I), and an organic electroluminescence device which comprises one or more organic thin film layers including an emitting layer between a cathode and an anode, wherein at least one layer of the organic thin film layers comprises at least one compound of formula (I). 

Specifically substituted ladder type compounds for organic light emitting devices

A compound having a structure wherein at least 8-position or 9-position of fluoranthene is replaced by a nitrogen atom, a material for organic electroluminescence devices including the compound, and an organic electroluminescence device and an electronic equipment each including the material are provided. The compound is represented by formula (1): wherein A represents CRor N; Rto Reach independently represent a hydrogen atom or a substituent; at least one selected from Rto Rrepresents a substituent other than hydrogen atom; and groups selected from Rto Rwhich are bonded to adjacent carbon atoms may be bonded to each other to form a saturated or unsaturated ring structure.

Compound, organic electroluminescent element material using same, organic electroluminescent element using this material, and electronic device

A compound has a first structure represented by a formula (1), a second structure represented by a formula (2), a third structure represented by a formula (3), and a fourth structure represented by a formula (4), the first structure, the second structure, the third structure and the fourth structure being mutually independently present in a molecule, 

Compound, composition, organic electroluminescence element, and electronic device

A composition or a compound suitable for use in forming the layer of organic EL device by a coating method, a material for organic electroluminescence devices including the composition or the compound, an ink composition including the composition or the compound, an organic electroluminescence device employing the composition or the compound, and an electronic device including the organic electroluminescence device are provided. The compound includes a nitrogen-containing hetero aromatic hydrocarbon group which has a substituent with a specific structure. The composition includes the compound.

Composition, compound, material for organic electroluminescence element, ink composition, organic electroluminescence element, and electronic device

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

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

A compound represented by formula (1): wherein *a, *b, R, X, L, L, n, A, and Aare as defined in the description, and a production method of the compound represented by formula (1) are provide. In the production method, Ais introduced under a reaction condition in which the reactivity of Halin a compound represented by formula (I): wherein *c, *d, R, X, L, L, n, A, A, Hal, and Halare as defined in the description,is extremely low as compared with that of Haland then Awhich is different from Ais introduced under a reaction condition in which the reactivity of Halis high. The compound represented by formula (1) is formed into a layer by a coating method and meets various performance requirements of an organic EL device.

Compound, organic electroluminescence element material, ink composition, organic electroluminescence element, electronic device, and method for producing compound

A polymer including a structural unit represented by the following formula (A). In the formula (A), P is independently a group represented by the following formula (P), a is an integer of 2 to 5, and b is an integer of 0 to 5. In the formula (P), A is independently a nitrogen atom or CR; X is a single bond, O, S, C(R)or NR. R is independently a hydrogen atom, a substituted or unsubstituted alkyl group including 1 to 20 carbon atoms or the like, or a single bond used for bonding to another P or L, provided that at least one R contained in (P)a is represented by any one of the following formulas (3) to (7). 

Carbazole-based polymer and organic electroluminescence element using same

A polymer including structural units represented by the following formulas (A) and (B). In the formula (A), P is a group derived from a compound represented by the formula (P). Lis a linkage group. In the formula (B), Q is a group derived from a compound represented by the formula (Q). Lis a linkage group. In the formula (B), at least one of 'c'Qs and 'd'Ls includes a cross-linkable group. 

Cross-linking polymer and organic electroluminescent element using same

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

Kiyoshi Ikeda