Patent ID: 8142908
Filing Date: 2012-03-27
Classification: C08G,C09K,H01L,H05B,Y10S

Abstract:
1. A polymer light emitting material consisting essentially of a compound exhibiting light emission from the triplet excited state and either (a) a polymer compound consisting essentially of a repeating unit represented by the formula (4) and having a polystyrene-reduced number-average molecular weight of 10 (b) a polymer compound consisting essentially of a repeating unit represented by the formula (4) and a repeating unit selected from the group consisting of groups (5), (6), (7) or (8) and having a polystyrene-reduced number-average molecular weight of 10 —[—wherein R X R (R —[—wherein Ar 5 , Ar 6 and Ar 7 each independently represent an arylene group selected from the group consisting of phenylene group, biphenylene group, fluorene-diyl group and stilbene-diyl group; X X R R a represents an integer of 0 or 1 and b represents an integer of 1 to 12—]—.