| 摘要 |
PROBLEM TO BE SOLVED: To obtain a sheet-like polarizing element which converts natural light to linearly polarized light with high efficiency and has excellent workability and to provide a liquid crystal display device which has high luminance or saves electric power consumption. SOLUTION: The sheet-like polarizing element arrayed with triangular prisms of a right-angled triangular shape in an array form comprises polarized light sepn. films 2 which consist of thin films of low and high refractive indices on the slopes of the triangular prisms, polarized light modulation parts 4 which are formed on the perpendicular faces of the prisms and consist of the thins films of liquid crystals in a molecule aligned state having a 1/4 spiral structure and alignment layers which align and fix the liquid crystal molecules in the molecule aligned state having the 1/4 spiral structure. The alignment layers 3 are deposited by diagonal vapor deposition of inorg. dielectric at a vapor deposition angle of 45 to 80 deg. with the normal of the vapor deposition surfaces, by which the sheet-like polarizing element having the excellent micromachinability of the polarized light modulation parts 4 is provided. |
