OPTICAL MEMBER, SURFACE LIGHT UNIT, AND LIQUID CRYSTAL DISPLAY

摘要

An optical member that will be incorporated in a surface light source unit and that is scarcely deformed while it is used as a component of the surface light source unit. The optical member comprises optical sheets layered on each other. The optical sheets at least includes: an outermost optical sheet on the light-entrance side, which is situated outermost on the light-entrance side; and a high-rigidity optical sheet situated on the light-exit side of the outermost optical sheet on the light-entrance side, a rigidity of the high-rigidity optical sheet being higher than a rigidity of the outermost optical sheet on the light-entrance side.