Abstract:
A sheet fixing member including: a body extended substantially parallel with the sidewall; a horizontal protrusion protruded from a side of the body configured to be inserted into the horizontal supporting recess; a vertical leg disposed at each side of a lower surface of the body to extend in a downward direction, the vertical legs and the body forming a sheet receiving space therebetween; and a sheet fixing protrusion protruded from a center of the lower surface of the body in the downward direction, the sheet fixing protrusion configured to be passed through the optical sheet disposed in the sheet receiving space and to be inserted into the fixing hole, wherein the sheet fixing member is configured to be combined with a mold frame to affix an optical sheet.