Title:
2,7-ジアミノナフタレン化合物、電荷輸送材料、有機電界発光素子材料、および有機電界発光素子
Document Type and Number:
Japanese Patent JP4424026
Kind Code:
B2
Abstract:
To provide an organic electroluminescent element having high electric current efficiency and light-emitting efficiency, capable of being driven by a low voltage, having excellent driving stability and heat resistance, and having stable light-emitting characteristics.
A new 2,7-diaminonaphthalene compound is expressed by general formula (I) (R1, R2, R3and R4are each an aromatic radical which may be substituted, or R1and R2are together combined to be formed into a ring which may be substituted and R3and R4are together combined to be formed into a ring which may be substituted, provided that at least one of R1, R2, R3, R4, the ring formed by together combining R1and R2and the ring formed by together combining R3and R4is an aromatic condensed ring radical which is formed by condensing 3 or more rings and may be substituted). The organic electroluminescent element has a layer containing the 2,7-diaminonaphthalene compound.
COPYRIGHT: (C)2005,JPO&NCIPI
Inventors:
Koichiro Iida
Takeshi Shiotani
Minoru Soma
Yoshiharu Sato
Application Number:
JP2004085036A
Publication Date:
March 03, 2010
Filing Date:
March 23, 2004
Assignee:
Mitsubishi Chemical Corporation
International Classes:
C07C211/61; C07D207/34; H01L51/50; C07D209/82; C07D209/88; C07D213/74; C07D215/46; C07D217/22; C07D219/06; C07D219/14; C07D221/10; C07D223/24; C07D241/48; C07D265/38; C07D279/26; C07D295/12; C07D307/91; C07D333/36; C07D333/54; C07D471/04; C09K11/06; H05B33/14; H05B33/22
Domestic Patent References:
| JP11273860A | | | | |
| JP10072579A | | | | |
| JP11185965A | | | | |
| JP2001064241A | | | | |
Attorney, Agent or Firm:
Tsuyoshi Shigeno
