| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize a projection type picture display device which uses a color synthesis optical element and a projection optical system without causing color irregularities of a projected picture and so on. SOLUTION: This projection type picture display device has plural liquid crystal display elements 13, 20, 30 which respectively modulate light beams which are mutually different in the wavelength region, a color synthesis optical element CSP1 which synthesizes the light beams which are modulated by the liquid crystal display elements by using dichroic membranes DM1, DM2 and a projection optical system 36 which projects the light synthesized by the color synthesis optical element and displays a picture. Further, polarizing elements 11, 15 are disposed respectively on an incident side and an emitting side of each liquid crystal display element, at the same time, optical anisotropic elements 12, 14 which correct the optical anisotropy of the liquid crystal display elements are disposed between the polarizing elements, and the distance Linp reduced in the air between the entrance pupil of projection optical system and the display surface of liquid crystal display element and the diagonal length Ldisp of display surface of liquid crystal display element are made to be 1.5<Linp/Ldisp<4. |
