Patent ID: 8877352
Filing Date: 2014-11-04
Classification: C07D,C09B,C09K,H01L,H05B,Y10S

Abstract:
1. An organic electroluminescence device comprising: a cathode; an anode; and a plurality of organic thin-film layers provided between the cathode and the anode, the organic thin-film layers comprising an emitting layer, wherein at least one of the organic thin-film layers is the emitting layer comprising a first host material, a second host material and a phosphorescent material providing phosphorescence, the first host material being a compound represented by a formula (5A) or (5B) below, where: A A X Y Y adjacent ones of Y p and q represent an integer of 1 to 4; r and s represent an integer of 1 to 3; when p and q are an integer of 2 to 4 and r and s are an integer of 2 to 3, a plurality of Y the alkyl group having 1 to 20 carbon atoms, alkoxy group having 1 to 20 carbon atoms, haloalkyl group having 1 to 20 carbon atoms, and alkylsilyl group having 1 to 10 carbon atoms for the substituent of A the alkyl group having 1 to 20 carbon atoms, alkoxy group having 1 to 20 carbon atoms, haloalkyl group having 1 to 20 carbon atoms, haloalkoxy group having 1 to 20 carbon atoms, and alkylsilyl group having 1 to 10 carbon atoms for Y