Organic light emitting display device and method of manufacturing the same

Abstract

A method of manufacturing an organic light emitting display device and the organic light emitting display device which reduces generation of dark spots by particles are disclosed. The method of manufacturing an organic light emitting display device includes: preparing for a substrate including a pixel circuit; forming a pixel electrode layer on the substrate, the pixel electrode layer including a reflection film and being electrically connected to the pixel circuit; coating photoresist on the pixel electrode layer; exposing and developing the photoresist using a predetermined pattern to expose a portion of the pixel electrode layer; etching the exposed portion of the pixel electrode layer to form a pixel electrode electrically connected to the pixel circuit; covering the substrate and the photoresist remaining on the pixel electrode with an insulation film; patterning the insulation film to expose the photoresist remaining on the pixel electrode; removing the exposed photoresist to expose the pixel electrode; and sequentially forming an organic light emitting layer and a facing electrode on the pixel electrode.

1 . An organic light emitting display device (OLED), comprising:
 a first electrode formed over a substrate;   an organic light emitting layer comprising a portion formed over a first portion of the first electrode;   a photoresist formed over a second portion of the first electrode, the second portion surrounding at least part of the first portion; and   a second electrode formed over the pixel defining layer and the organic light emitting layer.   
     
     
         2 . The OLED of  claim 1 , further comprising a pixel defining layer formed over the substrate while substantially surrounding the first electrode and the photoresist. 
     
     
         3 . The OLED of  claim 2 , wherein the pixel defining layer further comprises a portion formed over the photoresist. 
     
     
         4 . The OLED of  claim 2 , wherein the organic light emitting layer further comprises a portion interposed between the pixel defining layer and the second electrode. 
     
     
         5 . The OLED of  claim 1 , wherein the organic light emitting layer further comprises a portion interposed between the photoresist and the second electrode. 
     
     
         6 . The OLED of  claim 1 , wherein the first electrode comprises a reflection film. 
     
     
         7 . The OLED of  claim 6 , wherein the reflection film is formed of a metallic material. 
     
     
         8 . The OLED of  claim 7 , wherein the metallic material is selected from the group consisting of Ag, Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, and Ca. 
     
     
         9 . The OLED of  claim 1 , wherein the first electrode comprises a transparent conductor layer, a reflective conductor layer, and a transparent conductor layer sequentially stacked over one another.