Patent ID: 8388176
Filing Date: 2013-03-05
Classification: G02F

Abstract:
1. A light source device comprising: a sheet-shaped optical member that is arranged to control properties of light that passes therethrough, and includes a plurality of fitting holes each having a shape of a through hole, the plurality of fitting holes being disposed adjacent to an upper side of the sheet-shaped optical member in a normal usage state; and a chassis to which the sheet-shaped optical member is attached, and that includes a plurality of fitting protrusions that are vertically movable, and pushing mechanisms arranged to push the plurality of fitting protrusions upward in the normal usage state; wherein the sheet-shaped optical member is hung on the plurality of fitting protrusions of the chassis such that the plurality of fitting protrusions are fit in the plurality of fitting holes of the sheet-shaped optical member; and an upwardly pushing force of the pushing mechanisms and a total weight of the sheet-shaped optical member are in balance in the normal usage state.