| abstract |
A light emitting polymer composition comprising a light emitting polymer and a compound selected from the following formulae (1a) to (1d): n n n n n n n n n n n n n n n n n (wherein, X represents an atom or atomic group forming a 5-membered or 6-membered ring together with four carbon atoms on two benzene rings in the formula, Q and T represent each independently a hydrogen atom, halogen atom, alkyl group, alkyloxy group, alkylthio group, aryl group, aryloxy group, arylthio group, arylalkyl group, arylalkyloxy group, arylalkylthio group, alkenyl group, alkynyl group, arylalkenyl group, arylalkynyl group, substituted silyloxy group, substituted silylthio group, substituted silylamino group, substituted amino group, amide group, acid imide group, acyloxy group, mono-valent heterocyclic group, heteroaryloxy group, heteroarylthio group, cyano group or nitro group). |