Organic light emitting display device and method of manufacturing the same

Abstract

An organic light emitting display device prevents damage to an interlayer including an emitting layer and reduces IR drop in face electrodes, and a method of manufacturing the same. The organic light emitting display device includes: a substrate; a pixel electrode disposed on the substrate; an interlayer comprising an emitting layer disposed on the pixel electrode; a face electrode on the interlayer; and a sealing member disposed on the face electrodes, wherein the sealing member and the face electrode are bent along a curve of an upper portion of a layer below the face electrode so as to prevent a gap between the sealing member and the face electrode, and between the face electrode and the layer below the face electrode.

1 . An organic light emitting display device comprising:
 a substrate;   a pixel electrode disposed on the substrate;   an interlayer comprising an emitting layer disposed on the pixel electrode;   a face electrode disposed on the interlayer; and   a sealing member disposed on the face electrode,   wherein the sealing member and the face electrode conform to an upper surface of a layer below the face electrode with substantially no gap between the sealing member and the face electrode, and between the face electrode and the layer below the face electrode.   
     
     
         2 . The device of  claim 1 , wherein the face electrode comprises a transparent conductive oxide or a conductive polymer. 
     
     
         3 . The device of  claim 1 , further comprising a pixel defining layer covering an edge of the pixel electrode and exposing a center of the pixel electrode, wherein the interlayer is disposed on a portion of the pixel electrode exposed by the pixel defining layer, and wherein the face electrode conforms to an upper surface of the interlayer and an upper surface of the pixel defining layer with substantially no gap between the face electrode and the interlayer, and between the face electrode and the pixel defining layer. 
     
     
         4 . The device of  claim 1 , wherein the substrate is flexible. 
     
     
         5 . The device of  claim 1 , further comprising a patterned auxiliary electrode disposed on the face electrode, wherein the sealing member conforms to an upper surface of a layer below the sealing member with substantially no gap between the sealing member and the face electrode, and between the patterned auxiliary electrode and the face electrode. 
     
     
         6 . The device of  claim 5 , wherein the patterned auxiliary electrode comprises a conductive transparent oxide or conductive polymer. 
     
     
         7 . The device of  claim 5 , further comprising a pixel defining layer covering an edge of the pixel electrode and exposing a center of the pixel electrode, wherein the interlayer is disposed on a portion of the pixel electrode exposed by the pixel defining layer, and wherein the face electrode conforms to an upper surface of the interlayer and an upper surface of the pixel defining with no gap between the face electrode and the interlayer, and between the face electrode and the pixel defining layer. 
     
     
         8 . The device of  claim 7 , wherein a pattern of the patterned auxiliary electrode corresponds to the upper surface of the pixel defining layer. 
     
     
         9 . The device of  claim 8 , wherein the patterned auxiliary electrode comprises an opaque material. 
     
     
         10 . A method of manufacturing an organic light emitting display device, the method comprising:
 (a) forming a pixel electrode on a substrate and forming an interlayer comprising an emitting layer on the pixel electrode;   (b) forming a conductive layer on a flexible sealing member; and   (c) positioning the flexible sealing member and the substrate with the conductive layer facing the interlayer, and reshaping the flexible sealing member and the conductive layer to conform to an upper surface of a layer below the conductive layer at high temperature and high pressure, thereby substantially eliminating a gap between the conductive layer and the layer below the conductive layer.   
     
     
         11 . The method of  claim 10 , wherein the conductive layer comprises a transparent conductive oxide or a conductive polymer. 
     
     
         12 . The method of  claim 10 , wherein
 step (a) comprises forming a pixel defining layer covering an edge of the pixel electrode and exposing a center of the pixel electrode before forming the interlayer, and   step (c) comprises reshaping the flexible sealing member to prevent or eliminate a gap between the conductive layer and the interlayer, and between the conductive layer and the pixel defining layer.   
     
     
         13 . A method of manufacturing an organic light emitting display device, the method comprising:
 (a) forming a pixel electrode on a substrate and forming an interlayer comprising an emitting layer on the pixel electrode;   (b) forming a conductive layer on a flexible sealing member; and   (c) positioning the flexible sealing member and the substrate with the conductive layer facing the interlayer, and heating the flexible sealing member so that the flexible sealing member and the conductive layer conform to an upper surface of a layer below the conductive layer, thereby substantially eliminating a gap between the conductive layer and the layer below the conductive layer.   
     
     
         14 . The method of  claim 13 , wherein the conductive layer comprises a transparent conductive oxide or a conductive polymer. 
     
     
         15 . The method of  claim 13 , wherein
 step (a) comprises forming a pixel defining layer covering an edge of the pixel electrode and exposing a center of the pixel electrode before forming the interlayer, and   step (c) comprises reshaping the flexible sealing member to prevent or eliminate a gap between the conductive layer and the interlayer, and between the conductive layer and the pixel defining layer.   
     
     
         16 . A method of manufacturing an organic light emitting display device, the method comprising:
 (a) forming a pixel electrode on a substrate, forming an interlayer comprising an emitting layer on the pixel electrode, and forming a face electrode on the interlayer;   (b) forming a patterned conductive layer on a flexible sealing member;   and   (c) positioning the flexible sealing member and the substrate with the patterned conductive layer facing the face electrode, and reshaping the flexible sealing member to conform to an upper surface of a layer below the flexible sealing member at high temperature and high pressure with substantially no gap between the flexible sealing member and the face electrode, and between the patterned conductive layer to and the face electrode.   
     
     
         17 . The method of  claim 16 , wherein the patterned conductive layer comprises a transparent conductive oxide or a conductive polymer. 
     
     
         18 . The method of  claim 16 , wherein
 step (a) comprises forming a pixel defining layer covering an edge of the pixel electrode and exposing a center of the pixel electrode before forming the interlayer, and   step (c) comprises reshaping the flexible sealing member to prevent or eliminate a gap between the flexible sealing member and the face electrode, and between the flexible sealing member and the pixel defining layer.   
     
     
         19 . The method of  claim 18 , wherein a pattern of the patterned conductive layer corresponds to an upper surface of the pixel defining layer. 
     
     
         20 . The method of  claim 18 , wherein the patterned conductive layer comprises an opaque material. 
     
     
         21 . A method of manufacturing an organic light emitting display device, the method comprising:
 (a) forming a pixel electrode on a substrate, forming an interlayer comprising an emitting layer on the pixel electrode, and forming a face electrode on the interlayer;   (b) forming a patterned conductive layer on a flexible sealing member;   (c) positioning the flexible sealing member and the substrate with the patterned conductive layer facing the face electrode, and heating the flexible sealing member, thereby reshaping the flexible sealing member to conform to an upper surface of a layer below the flexible sealing member with substantially no gap between the flexible sealing member and the face electrode, and between the patterned conductive layer and the face electrode.   
     
     
         22 . The method of  claim 20 , wherein the patterned conductive layer comprises a transparent conductive oxide or a conductive polymer. 
     
     
         23 . The method of  claim 20 , wherein
 step (a) comprises forming a pixel defining layer covering an edge of the pixel electrode and exposing a center of the pixel electrode before forming the interlayer, and   step (c) comprises reshaping the flexible sealing member with substantially no gap between the flexible sealing member and the face electrode, and between the flexible sealing member and the pixel defining layer.   
     
     
         24 . The method of  claim 23 , wherein a pattern of the patterned conductive layer corresponds to the upper surface of the pixel defining layer. 
     
     
         25 . The method of  claim 23 , wherein the patterned conductive layer comprises an opaque material.