Title of Invention

AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME

Abstract Disclosed is an aromatic amine derivative represented by the general formula (1) or (2) below and having a diphenylamino group wherein a cycloalkyl group is bonded to a benzene ring. Also disclosed is an organic electroluminescent device wherein an organic thin film composed of one or more layers including at least a light-emitting layer is interposed between a cathode and an anode, and at least one layer of the organic thin film contains the aromatic amine derivative by itself or as a component of a mixture. This organic electroluminescent device has long life and high luminous efficiency, and is capable of emitting blue light with high color purity. The aromatic amine derivative enables to realize such an organic electroluminescent device. (1) (2) (In the general formula (1), A<sub>1</sub>-A<sub>4</sub> respectively represent a hydrogen atom or the like, and a-d respectively represent an integer of 0-5. In this connection, at least one of a-d represents an integer of not less than 1, and in that case at least one of A<sub>1</sub>-A<sub>4</sub> represents a cycloalkyl group. In the general formula (2), A<sub>5</sub>-A<sub>8</sub> respectively represent a hydrogen atom or the like, e-h respectively represent an integer of 0-5, and X1 and X2 respectively represent an arylene group. In this connection, at least one of e-h represents an integer of not less than 1, and in that case at least one of A<sub>5</sub>-A<sub>8</sub> represents a cycloalkyl group.)
Full Text




mcnoanthracene compound as an organic hightremitting material (refer to Patent) Literature 1 below). However, in this technique, luminance obtained by using the material is as low as 1650 cd/rn2,for example, at a current density of 165 mA/cm2, and anefciency of light, emission thereof is very low, i.e only 1 cd/A: which is practically unusable, Also, there is disclosed a technique using a single bisanthraeene compound as an organic light emitting material (refer to Patent Hewever. in this techniaue. a current efficiency of light emission obtained by using the material is also as low as about 1 to 3 cd/A. Therefore,, further improvement of the technique has bee demanded for rendering it practically usable. Further, there is disclosed a technique using a

































































































































Documents:

3459-chenp-2007 amended claims 08-08-2011.pdf

3459-CHENP-2007 CORRESPONDENCE OTHERS 08-08-2011.pdf

3459-CHENP-2007 AMENDED CLAIMS 12-01-2011.pdf

3459-CHENP-2007 AMENDED PAGES OF SPECIFICATION 12-01-2011.pdf

3459-chenp-2007 correspondence others 11-02-2011.pdf

3459-chenp-2007 form-3 12-01-2011.pdf

3459-chenp-2007 form-3 11-02-2011.pdf

3459-CHENP-2007 CORRESPONDENCE OTHERS 08-09-2010.pdf

3459-chenp-2007 examination report reply received 12-01-2011.pdf

3459-CHENP-2007 EXAMINATION REPORT REPLY RECIEVED 12-01-2011.pdf

3459-chenp-2007-abstract.pdf

3459-chenp-2007-claims.pdf

3459-chenp-2007-correspondnece-others.pdf

3459-chenp-2007-description(complete).pdf

3459-chenp-2007-drawings.pdf

3459-chenp-2007-form 1.pdf

3459-chenp-2007-form 26.pdf

3459-chenp-2007-form 3.pdf

3459-chenp-2007-form 5.pdf


Patent Number 248765
Indian Patent Application Number 3459/CHENP/2007
PG Journal Number 34/2011
Publication Date 26-Aug-2011
Grant Date 23-Aug-2011
Date of Filing 07-Aug-2007
Name of Patentee IDEMITSU KOSAN CO., LTD
Applicant Address 1-1, MARUNOUCHI 3-CHOME, CHIYODA-KU, TOKYO
Inventors:
# Inventor's Name Inventor's Address
1 FUNAHASHI, MASAKAZU 1280, KAMIIZUMI, SODEGAURA-SHI, CHIBA,
PCT International Classification Number C07C 211/61
PCT International Application Number PCT/JP06/300499
PCT International Filing date 2006-01-17
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 2005-030580 2005-02-07 Japan