A method for manufacturing a display device according to an exemplary embodiment of the present inventive concept includes: forming a digitizer assembly; and attaching the digitizer assembly to a bottom of a display panel, wherein the forming the digitizer assembly comprises forming through-hole portions in a heat dissipation sheet layer, forming a digitizer board by sequentially attaching a buffering sheet layer, a digitizer layer, a shield sheet layer, and the heat dissipation sheet layer, and forming a plurality of digitizer assemblies by cutting the digitizer board, wherein the through-hole portions partially expose the shield sheet layer and are disposed at corners of the digitizer assembly.