▎ 摘　　要

NOVELTY - The display device has: a substrate including holes comprising a hole; a metal layer disposed on one side of the substrate; a light-emitting device layer disposed on the metal layer; and a heat radiation layer disposed on another side of the substrate. The heat radiation layer contacts the metal layer in the hole. The substrate includes glass. The heat radiation layer includes a polymer resin and 1-80 wt.% heat radiation particles. The heat radiation particles are copper, carbon nanotubes, graphene oxide or graphite. The polymer resin includes acrylate, polyurethane, or polyethylene. The metal layer includes chromium or titanium. USE - Display device such as flat panel displays such as LCD or a light emitting display device. ADVANTAGE - The display device has improved radiation performance. The light emitting display device is replacing the LCD that was widely used in the past. The light emitting display device self-generates light and displays images, so differing from the LCD, then the light emitting display device needs no backlight unit for generating light with constituent elements. Thus, the light emitting display device is more advantageous in reducing the thickness than the LCD display, and its response characteristic is excellent, so its use range is increasing as a next-generation display device. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing the display device. DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of a display device. 110Substrate 111Holes 120Metal layer 200Heat radiation layer 210First portion 220Second portion