Patent ID: 8384280

Claim:
A display device comprising a reflective electrode arranged on or above a substrate and in direct connection with a transparent pixel electrode, wherein the reflective electrode comprises: a first Al—(Ni/Co)—X alloy layer containing: 0.1 to 2 atomic percent of at least one of nickel (Ni) and cobalt (Co), and 0.1 to 2 atomic percent of X, wherein X is at least one element selected from the group consisting of La, Mg, Mn, Ru, Rh, Pt, Pd, Ir, Ce, Pr, Gd, Tb, Dy, Nb, Mo, W, Eu, Ho, Er, Tm, Yb, and Lu; and a second aluminum oxide layer containing aluminum (Al) and oxygen (O), wherein the second aluminum oxide layer is directly connected to the transparent pixel electrode, wherein the second aluminum oxide layer has a ratio [O]/[Al] of the number of oxygen atoms to the number of aluminum atoms of 0.30 or less, wherein the second aluminum oxide layer has a thickness in its thinnest portion of 10 nm or less, and wherein the contact resistance between the reflective electrode and the transparent pixel electrode is 100 μΩ/cm 2 or less.