Organic electroluminescence display device

Abstract

Provided is an organic electroluminescence display device. The organic electroluminescence display device includes a bank that is provided so as to surround a central portion of a pixel electrode, an organic electroluminescence layer that is provided on the pixel electrode, a common electrode that is formed so as to extend from the organic electroluminescence layer to the bank, a color filter layer that overlaps the organic electro luminescence layer, a black matrix layer that overlaps the bank, a spacer that is provided on the black matrix layer, and a wiring that is provided on the black matrix layer so as to be placed on the spacer. The black matrix layer is disposed on the bank through the spacer. A convex portion is formed by the wiring being placed on the spacer, and the convex portion is electrically connected to the common electrode above the bank.

What is claimed is: 
     
         1 . An organic electroluminescence display device comprising:
 a plurality of pixels including a first pixel, a second pixel, a third pixel, and a fourth pixel, the first pixel including a first pixel electrode and a first thin film transistor, the first and second pixels arranged in a first direction, the third and fourth pixels arranged in a second direction which intersects the first direction, and the first to fourth pixels being adjacent to one another;   a bank partitioning the plurality of pixels;   a common electrode located above at least the first electrode;   an organic electroluminescence layer located at least between the first pixel electrode and the common electrode; and   a plurality of spacers overlapping with the bank in a planar view,   wherein the first pixel electrode is connected with the first thin film transistor via a first contact hole,   the first pixel includes a first light emitting region, the first light emitting region having a first center portion therein,   the second pixel includes a second light emitting region, the second light emitting region having a second center portion therein,   the third pixel includes a third light emitting region, the third light emitting region having a third center portion therein,   the fourth pixel includes a fourth light emitting region, the fourth light emitting region having a fourth center portion therein,   a boundary area of the first to fourth pixels has a center part included in an area surrounded by imaginary lines which connect the first to fourth center portions, and   the first contact hole and one of the spacers overlap with the center part in a planar view.   
     
     
         2 . The organic electroluminescence display device according to  claim 1 , wherein the common electrode, the bank, and the one of the spacers are stacked. 
     
     
         3 . The organic electroluminescence display device according to  claim 1 , wherein the spacers are not located at all boundary areas between the pixels in a planar view. 
     
     
         4 . The organic electroluminescence display device according to  claim 1 , wherein the first contact hole is located between the first and second light emitting regions. 
     
     
         5 . The organic electroluminescence display device according to  claim 1 , wherein the first contact hole and the one of the spacers are arranged in the first direction. 
     
     
         6 . The organic electroluminescence display device according to  claim 1 , wherein the first to fourth pixels are arranged in two columns and two rows. 
     
     
         7 . An organic electroluminescence display device comprising:
 a plurality of pixels including a first pixel, a second pixel, a third pixel, and a fourth pixel, the first pixel including a first pixel electrode and a first thin film transistor, the first and second pixels arranged in a first direction, the third and fourth pixels arranged in a second direction which intersects the first direction, and the first to fourth pixels being adjacent to one another;   a bank partitioning the plurality of pixels;   a common electrode located above at least the first electrode;   an organic electroluminescence layer located at least between the first pixel electrode and the common electrode; and   a plurality of convex portions overlapping with the bank in a planar view,   wherein the first pixel electrode is connected with the first thin film transistor via a first contact hole,   the first pixel includes a first light emitting region, the first light emitting region having a first center portion therein,   the second pixel includes a second light emitting region, the second light emitting region having a second center portion therein,   the third pixel includes a third light emitting region, the third light emitting region having a third center portion therein,   the fourth pixel includes a fourth light emitting region, the fourth light emitting region having a fourth center portion therein,   a boundary area of the first to fourth pixels has a center part included in an area surrounded by imaginary lines which connect the first to fourth center portions, and   the first contact hole and one of the convex portions overlap with the center part in a planar view.   
     
     
         8 . The organic electroluminescence display device according to  claim 7 , wherein the common electrode, the bank, and the one of the convex portions are stacked. 
     
     
         9 . The organic electroluminescence display device according to  claim 7 , wherein the convex portions are not located at all boundary areas between the pixels in a planar view. 
     
     
         10 . The organic electroluminescence display device according to  claim 7 , wherein the first contact hole is located between the first and second light emitting regions. 
     
     
         11 . The organic electroluminescence display device according to  claim 7 , wherein the first contact hole and the one of the convex portions are arranged in the first direction. 
     
     
         12 . The organic electroluminescence display device according to  claim 7 , wherein the first to fourth pixels are arranged in two columns and two rows. 
     
     
         13 . An organic electroluminescence display device comprising:
 a plurality of pixels including a first pixel, a second pixel, a third pixel, and a fourth pixel, the first pixel including a first pixel electrode and a first thin film transistor, the first and second pixels arranged in a first direction, the third and fourth pixels arranged in a second direction which intersects the first direction, and the first to fourth pixels being adjacent to one another;   a bank partitioning the plurality of pixels;   a common electrode located above at least the first electrode;   an organic electroluminescence layer located at least between the first pixel electrode and the common electrode; and   a plurality of spacers overlapping with the bank in a planar view,   wherein the first pixel electrode is connected with the first thin film transistor via a first contact hole,   the first pixel includes a first light emitting region,   the second pixel includes a second light emitting region,   the third pixel includes a third light emitting region,   the fourth pixel includes a fourth light emitting region,   the first contact hole and one of the spacers are located between the first and second light emitting regions, and   the one of the spacers overlaps with an area surrounded by the first to fourth light emitting regions in a planar view.   
     
     
         14 . The organic electroluminescence display device according to  claim 13 , wherein the common electrode, the bank, and the one of the spacers are stacked. 
     
     
         15 . The organic electroluminescence display device according to  claim 13 , wherein the spacers are not located at all boundary areas between the pixels in a planar view. 
     
     
         16 . The organic electroluminescence display device according to  claim 13 , wherein the first contact hole and the one of the spacers are arranged in the first direction. 
     
     
         17 . The organic electroluminescence display device according to  claim 13 , wherein the first to fourth pixels are arranged in two columns and two rows. 
     
     
         18 . The organic electroluminescence display device according to  claim 13 , wherein the first light emitting region has a first center portion therein,
 the second light emitting region has a second center portion therein,   the third light emitting region has a third center portion therein,   the fourth light emitting region has a fourth center portion therein,   the one of the spacers are located in a region surrounded by imaginary lines which connect the first to fourth center portions in a planar view.   
     
     
         19 . The organic electroluminescence display device according to  claim 18 , wherein the first light emitting region has a first corner,
 the second light emitting region has a second corner facing the first corner in the first direction,   the third light emitting region has a third corner,   the fourth light emitting region has a fourth corner facing the third corner in the second direction,   the one of the spacers are located in a region surrounded by imaginary lines which connect the first to fourth corners in a planar view.   
     
     
         20 . The organic electroluminescence display device according to  claim 19 , wherein the one of the spacers overlaps with a center of the region in a planar view.