Display device

Abstract

A display device is disclosed. In one aspect, the device includes a substrate and a display unit disposed on the substrate and including a plurality of pixels each pixel including a thin film transistor, a display element electrically connected to the thin film transistor, and a planarization layer interposed between the thin film transistor and the display element. The display unit includes a display region and a non-display region surrounding the display region, wherein the non-display region includes a voltage line. The planarization layer comprises a central portion, an outer portion and a dividing region interposed between the central and outer portions, wherein the dividing region is located in the non-display region. The planarization layer covers at least a lateral side of the voltage line formed in the dividing region.

What is claimed is: 
     
         1 . A display device, comprising:
 a substrate including a display region and a non-display region surrounding the display region;   a planarization layer formed over the display area and a portion of the non-display area; and   a voltage line formed in the non-display region of the substrate,   wherein the planarization layer comprises a first portion formed in the display and non-display regions and a second portion formed only in the non-display region, and   wherein the voltage line and at least a portion of the planarization layer are formed on the same layer.   
     
     
         2 . The display device of  claim 1 , further comprising a thin film encapsulation layer including at least one organic layer and at least one inorganic layer alternately formed with respect to each other over the first portion of the planarization layer. 
     
     
         3 . The display device of  claim 2 , wherein the at least one inorganic layer comprises a plurality of inorganic layers contacting each other at least over the second portion of the planarization layer. 
     
     
         4 . The display device of  claim 2 , wherein the planarization layer further includes a dam formed in the non-display region and interposed between the first and second regions of the planarization layer, and wherein the organic layers do not overlap the dam in the depth dimension of the display device. 
     
     
         5 . The display device of  claim 3 , wherein the voltage line includes first and second voltage lines, wherein the second voltage line extends in a first direction, wherein the first voltage line extends in a second direction crossing the first direction, and wherein the second voltage line is formed in the non-display region.