Display device having diffraction grating

Details Display device having diffraction grating Display device having diffraction grating

1996-10-30

1999-09-28

Sikes, William L.

Liquid crystal cells, elements and systems

Liquid crystal system

Projector including liquid crystal cell

349 5, 349 95, 349104, 353 38, G02F 11335, G03B 2114

Patent

active

059597046

ABSTRACT:
A display device including a diffraction grating from which a diffracted light of the zeroth order and a diffracted light of the first order having different color light components emerge to establish color separation. An array of micro-lenses is arranged on a liquid crystal panel. The liquid crystal panel has a plurality of picture elements and each picture element includes a plurality of color display dots. The color display dots in each picture element are arranged in the vertical relationship and in the order of wavelength of the light. A green light component of diffracted light of the first order is made incident normal to the liquid crystal panel, and the diffracted light of the zeroth order passes through the liquid crystal panel at a greater angle relative to the normal to the liquid crystal panel.

REFERENCES:
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patent: 5355187 (1994-10-01), Ogino et al.
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patent: 5526147 (1996-06-01), Omae et al.
patent: 5648860 (1997-07-01), Ooi et al.
patent: 5737040 (1998-04-01), Ichikawa et al.
patent: 5777804 (1998-07-01), Nakamura et al.
Asia Display '95-pp. 727-729, "532-1 Holographic Ophinl Element For Liquid Ctystal Projector," Ichikawa.

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