White OLEDs with hole injection layer [(MoO3or m-MTDATA)], and electron transport layer (Alq3or Bphen) are prapared. With 9, 10-bis (2-naphthyl)-2-t-butylanthracene (TBADN) doped with 3% P-bis (P-N, N-diphenyl-aminostyryl) benzene (DSA-ph) and 0.05% 4-(dicyanomethylene)-2-t-butyl-6-(1, 1, 7, 7,-tetramethyl-julolidy-9-enyl)-4H-pyran (DCJTB) as white emitting layer, The results the MoO3//Bphen based devices have the lowest driving voltage and highest power efficiency. At the current density of 20 mA/cm2, the driving voltage and power efficiency are 5.43 V and 4.54 lm/W respectively, which is respectively reduced 40% and improved 57% comparing with those of the m-MTDATA//Alq3based one significance in OLED performances.