Display apparatus

A display apparatus comprising:

• a liquid crystal panel;
• a chassis configured to cover a rear side of the liquid crystal panel;
• a backlight unit arranged to supply light to the liquid crystal panel;
• an optical sheet provided between the liquid crystal panel and the backlight unit and having a hole, a deformable part, and a deformable hole which is adjacent to the deformable part in a first direction toward a center of the optical sheet, the deformable hole being configured to assist structural deformation of the deformable part;
• and
• a sheet fixer configured to fix the optical sheet,
• wherein the sheet fixer comprises:
• an anti-deviation projection inserted in the hole of the optical sheet to restrict movement of the optical sheet in the first direction, and
• a supporting projection provided outside the deformable hole, and contacting the deformable part to restrict movement of the optical sheet in a second direction in which the optical sheet expands toward an edge of the chassis due to heat by the backlight unit, wherein the hole and the deformable hole are arranged to be spaced apart from each other in a direction different from the first direction and the second direction along an edge of the optical sheet, and
• wherein the anti-deviation projection and the supporting projection are arranged to be spaced apart from each other in the direction in which the hole and the deformable hole are arranged.