| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 09.99 |
| PATENT ASSIGNEE | Sumitomo Chemical |
| PATENT CLAIMS |
Organic EL device comprising pair of electrodes, at least one of which is transparent & organic layer formed between the electrodes, the organic layer contg hole transport material (I) & light emitting material; wherein (I) contains polysilane whose main chain skeleton is composed of repeat units - -[-SiR(-C6H4-NR'Ph)-]- (1); R,R' = alkyl - -[-SiR''R'''-]- (2); R'',R''' = alkyl Where ratio of No. of (1) & that of (2) to total number are z & 1-z resp. the polysilane having MW > 5000 & hole drift mobility of 0.001-0.1 square.cm/v/sec |
| PATENT PHOTOCOPY | Available on request |
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