Patent ID: 9716250
Date: 2017-07-25
CPC Classifications: H01L

Claim:
1. An organic electroluminescent display, comprising: a substrate having a pixel region and a non-pixel region when viewed in a direction substantially perpendicular to a top surface of the substrate; a first electrode formed on an area of the top surface corresponding to the pixel region of the substrate; an organic light emitting layer formed on the first electrode and capable of generating light; a second electrode formed on the organic light emitting layer and including a conductive material capable of reflecting the light generated by the organic light emitting layer; a pixel defining layer formed only on the non-pixel region of the substrate and having opened part corresponding to the pixel region of the substrate; and a bump formed on the opened part of the pixel defining layer and reflecting the light generated from the organic light emitting layer to the substrate, wherein the pixel region includes a plurality of pixel regions, wherein the bump includes multiple bumps, wherein at least two of the bumps have thicknesses different from each other, and wherein the pixel defining layer is non-overlapping with the pixel region of the substrate when viewed in the direction substantially perpendicular to the top surface of the substrate.