| abstract |
A white light-emitting OLED device including spaced anode and cathode, and having blue light-emitting and yellow, orange, or red light-emitting layers, the blue light-emitting layer including a monoanthracene derivative of Formula (I) as a host material: n n nwherein R 1 -R 8 are H; R 9 is not the same as R 10 ; R 9 is a naphthyl group having no fused rings with aliphatic carbon ring members; and R 10 is a biphenyl group having no fused rings with aliphatic carbon ring members; provided that R 9 and R 10 are free of amines and sulfur compounds. |