Patent ID: 7157156
Filing Date: 2007-01-02
Classification: H01L,Y10S,Y10T

Abstract:
1. In an OLED device, the improvement comprising: (a) a reflective and conductive bilayer anode including a metal or metal alloy or both; (b) a hole-injecting structure over the reflective and conductive bilayer anode; (c) at least one organic layer formed over the hole-injecting structure; (d) the reflective and conductive bilayer anode being configured to improve the stability of drive voltage; and (e) wherein the reflective and conductive bilayer anode includes a base layer of a highly reflective metal and a thin surface layer including an alloy of the base layer or an alloy of a different highly reflective metal in contact with the hole-injecting structure, and the metals alloyed with the highly reflective metals in the thin surface layer are Ag, Au, Cu, Al, Mg, Zn, Rh, Ru, Ir, Pd, Ni, Cr, Pt, Co, Te, or Mo or combinations thereof.