Display device and manufacturing method thereof

Abstract

A display device includes a window and a display panel attached to the window. The display panel includes a flat display area and a curved display area, and the curved display area may be thinner than the flat display area.

What is claimed is: 
     
         1 . A display device comprising:
 a window; and   a display panel attached to the window, the display panel including a flat display area and a curved display area,   wherein the curved display area is thinner than the flat display area.   
     
     
         2 . The display device of  claim 1 , wherein the curved display area includes:
 to a side display area disposed at at least one side of the flat display area; and   a corner display area disposed at at least one corner of the flat display area.   
     
     
         3 . The display device of  claim 2 , wherein an edge of the corner display area and an edge of the side display area are physically and continuously connected with each other. 
     
     
         4 . The display device of  claim 2 , wherein, in a plan view, the edge of the corner display area is a curved line and the edge of the side display area is a straight line. 
     
     
         5 . The display device of  claim 1 , wherein the flat display area has a rectangular shape, and
 the curved display area includes:
 four side display areas which are respectively connected to four sides of the flat display area; and 
 four corner display areas which are respectively disposed between adjacent side display areas among the four side display areas. 
   
     
     
         6 . The display device of  claim 5 , wherein, in a plan view, an edge of each of the corner display areas has an arc shape. 
     
     
         7 . The display device of  claim 1 , further comprising an adhesive layer disposed between the window and the display panel. 
     
     
         8 . The display device of  claim 7 , wherein the display panel further includes a substrate, an organic light emitting diode on the substrate, an encapsulation layer covering the organic light emitting diode, and an anti-reflection layer on the encapsulation layer, and
 the anti-reflection layer directly contacts the adhesive layer.   
     
     
         9 . The display device of  claim 1 , wherein the curved display area is in a stretched state. 
     
     
         10 . The display device of  claim 1 , wherein an edge of each of the curved display areas is inclined with respect to an attachment surface of the curved display area. 
     
     
         11 . A method for manufacturing a display device, the method comprising:
 attaching an adhesive sheet to a rear side of a display panel;   attaching a center area of the display panel to a window;   attaching edge areas of the display panel to the window while a tension force is applied to the adhesive sheet; and   removing the adhesive sheet.   
     
     
         12 . The method for manufacturing the display device of  claim 11 , wherein, when the tension force is applied to the adhesive sheet, the adhesive sheet and the edges areas of the display panel attached to the adhesive sheet are stretched, and the edge areas of the display panel are attached to the window while being in a stretched state. 
     
     
         13 . The method for manufacturing the display device of  claim 11 , wherein the attaching the center area of the display panel is carried out by a center pad, and the attaching the edge areas of the display panel is carried out by edge pads which are disposed at edges of the center pad. 
     
     
         14 . The method for manufacturing the display device of  claim 13 , wherein the attaching the edge areas of the display panel is carried out by increasing a volume of the edge pads. 
     
     
         15 . The method for manufacturing the display device of  claim 13 , wherein the edge pads have moduli which are smaller than that of the center pad. 
     
     
         16 . The method for manufacturing the display device of  claim 14 , wherein at least one of the edge pads is a diaphragm of which the volume is changed depending on an air pressure. 
     
     
         17 . The method for manufacturing the display device of  claim 13 , wherein the center pad includes a first pad and a second pad which surrounds the first pad,
 the attaching the center area of the display panel to the window includes attaching a first area of the center area by the first pad and then attaching a second area of the center area by the second pad.   
     
     
         18 . The method for manufacturing the display device of  claim 11 , wherein the attaching the center area of the display panel to the window is carried out by a roll. 
     
     
         19 . The method for manufacturing the display device of  claim 11 , wherein the center area of the display panel forms a flat display area, and the edge areas of the display panel form a curved display area which includes side display areas and corner display areas. 
     
     
         20 . The method for manufacturing the display device of  claim 19 , wherein when the adhesive sheet is attached to the rear side of the display panel, the adhesive sheet is attached to the side display areas and is not attached to the corner display areas.