Display Device

Abstract

A display device includes a substrate having a display portion and a peripheral portion surrounding the display portion, and a plurality of pixels formed in the display portion. The plurality of pixels have a switching element, a pixel electrode connected to the switching element, a counter electrode, and a light emitting material layer arranged between the pixel electrode and the counter electrode, respectively, and the counter electrode is arranged in common for the display portion. A bank layer of organic material is arranged between the pixel electrode and the counter electrode and is formed in the display portion and the peripheral portion, with each pixel being divided by the bank layer in the display portion, and the bank layer having at least one opening in the peripheral portion.

What is claimed is: 
     
         1 . A display device comprising:
 a substrate having a display portion and a peripheral portion;   a gate signal line, a drain signal line, a switching element connected to the gate signal line and the drain signal line, and a pixel electrode connected to the switching element and formed in the display portion;   an inorganic insulation film formed in the display portion and the peripheral portion; and   an organic film disposed between the inorganic insulation film and the pixel electrode, and formed in the display portion and a part of the peripheral portion,   wherein the organic film has an end portion which is disposed in the peripheral portion and which is disposed on the inorganic insulation film, and the end portion includes a top surface and a side surface,   wherein the top and the side surface of organic film, and a top surface of the inorganic insulation film are covered by a conductive layer.   
     
     
         2 . The display device according to  claim 1 ,
 wherein the conductive layer directly contacts with the top surface of the inorganic insulation film.   
     
     
         3 . The display device according to  claim 1 ,
 wherein the conductive layer is transparent.   
     
     
         4 . A display device according to  claim 1 , wherein the conductive layer is made of a material which is the same as a material of the plurality of pixel electrodes. 
     
     
         5 . The display device according to  claim 1 ,
 wherein the inorganic insulation film is a gate insulator of the switching element.   
     
     
         6 . A display device comprising:
 a substrate having a display portion and a peripheral portion;   a gate signal line, a drain signal line, a switching element connected to the gate signal line and the drain signal line, and a pixel electrode connected to the switching element and formed in the display portion;   an inorganic insulation film formed in the display portion and the peripheral portion; and   an organic film disposed between the inorganic insulation film and the pixel electrode, and formed in the display portion and a part of the peripheral portion,   wherein the organic film has a first end portion and a second end portion which are disposed in the peripheral portion, and the first end portion extends along a first direction and the second end portion extend along the second direction,   wherein a top and a side surface of the first end portion of the organic film is covered by a first conductive layer and a top and a side surface of the second end portion of the organic film is covered by a second conductive layer.   
     
     
         7 . The display device according to  claim 6 ,
 wherein the first and the second conductive layers contact with a top surface of the inorganic insulation film.   
     
     
         8 . The display device according to  claim 6 ,
 wherein the first and the second conductive layers are transparent.   
     
     
         9 . A display device according to  claim 6 , wherein the first and the second conductive layers are made of a material which is the same as a material of the plurality of pixel electrodes. 
     
     
         10 . The display device according to  claim 6 ,
 wherein the inorganic insulation film is a gate insulator of the switching element.