光学构件、偏光板之套件及液晶显示装置;OPTICAL MEMBER, POLARIZING PLATE SET, AND LIQUID CRYSTAL DISPLAY APPARATUS

摘要

本发明提供一种光学构件，其可实现机械强度优异、且获得充分亮度之液晶显示装置。本发明之光学构件包括偏光板、低折射率层、及棱镜片，且低折射率层之折射率n满足1<n≦1.25之关系。代表性情况下，低折射率层之折射率n与厚度d(nm)满足下述式(1)或(2)所表示之关系。;1<n≦1.20且300≦d (1) ;1.20<n≦1.25且500≦d (2) Provided is an optical member that can realize a liquid crystal display apparatus that is excellent in mechanical strength and provides sufficient brightness. The optical member includes: a polarizing plate; a low refractive index layer having a selected refractive index; and a prism sheet.