A display includes: a display panel; and a panel bottom sheet disposed below the display panel, the panel bottom sheet including: a first heat dissipation layer; a second heat dissipation layer over the first heat dissipation layer, including a first opening formed completely through the second heat dissipation layer in a thickness direction; a heat dissipation coupling interlayer between the first heat dissipation layer and the second heat dissipation layer, and a heat dissipation substrate on the second heat dissipation layer.