A reflection sheet which can prevent scratches on a back face of an optical waveguide
plate, and a backlight unit capable of attempting the improvement of brightness
and the uniformization of the brightness using the reflection sheet. The reflection
sheet includes a substrate sheet made of a white synthetic resin and a scratchproof
layer overlaid to the front face side of this substrate sheet, wherein the scratchproof
layer has flexible protrusions on its front face in a substantially uniform manner.
The scratchproof layer includes a binder and beads dispersed in the binder. Flexible
elastomer material which constitutes the beads is preferably flexible polyurethane
or a silicone rubber.
