Single-panel color image display apparatus

Details Single-panel color image display apparatus Single-panel color image display apparatus

2005-07-05

2005-07-05

Dowling, William C. (Department: 2851)

Optics: image projectors

Composite projected image

Multicolor picture

C353S084000, C348S743000

Reexamination Certificate

active

06913360

ABSTRACT:
A single-panel color image display apparatus realizing a wide color gamut includes a light source, a colored light separator, and a light valve. The colored light separator has four or more dichroic filters of reflective type which separate a light emitted from the light source according to a wavelength. The light valve controls the light that is emitted from the light source and separated by the colored light separator according to color, on a pixel-by-pixel basis according to an input image signal, and forms a color image. By performing color scrolling using a scrolling unit having a spiral array of lens cells, the same resolution as that obtained when using a color wheel can be realized and the same light efficiency as that obtained when using a three-panel color image display apparatus can be realized.

REFERENCES:
patent: 5845981 (1998-12-01), Bradley
patent: 5897190 (1999-04-01), Takahashi
patent: 2004/0066494 (2004-04-01), Lee et al.
patent: 2004/0085486 (2004-05-01), Katoh et al.
patent: 2004/0105077 (2004-06-01), Kim et al.
patent: 2004/0114112 (2004-06-01), Kim et al.

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