Liquid crystal display apparatus

Details Liquid crystal display apparatus Liquid crystal display apparatus

1989-10-23

1991-08-27

Hille, Rolf

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 63, 359 73, 359 70, 359 49, G02F 113

Patent

active

050429213

ABSTRACT:
In order to effectively use light from a light source, the light from the light source is split into P-polarized light and S-polarized light by a splitter or the like. The split P-polarized light is directly incident on a liquid crystal display apparatus for displaying an image by using P-polarized light. The split S-polarized light is optically rotated by a wavelength plate or the like and converted into P-polarized light. This P-polarized light is also incident on the liquid crystal display apparatus. The liquid crystal display apparatus effectively utilizes the light from the light source and displays an image with high luminance.

REFERENCES:
patent: 4461542 (1984-07-01), Gagnon
patent: 4560999 (1985-12-01), Tokuhara
patent: 4653867 (1987-03-01), Urabe et al.
patent: 4715684 (1987-12-01), Gagnon
patent: 4722593 (1988-02-01), Shimazaki
patent: 4726662 (1988-02-01), Cromack
patent: 4770525 (1988-09-01), Umeda et al.
patent: 4884876 (1989-12-01), Lipton et al.
patent: 4913529 (1990-04-01), Goldenberg et al.
patent: 4936658 (1990-06-01), Tanaka et al.

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