Patent ID: 8362687

Claim:
An organic electro-luminance display device, comprising: a first substrate comprising a plurality of sub-pixels; a first electrode on the first substrate; a buffer layer on the first electrode of a region that partitions each of the sub-pixels and comprising a trench therein; a spacer on the buffer layer, the buffer layer and the spacer being integrally formed; an organic light-emitting layer on a portion of the first electrode that corresponds to each of the sub-pixels and the spacer; and a second electrode on the organic light-emitting layer, wherein the buffer layer comprises: a first buffer layer on the first electrode of the region that partitions each of the sub-pixels and comprising a first trench, and a second buffer layer on the first buffer layer and comprising a second trench and the spacer, wherein the second trench corresponds to the first trench, and wherein the second trench comprises an under-cut shape.