Display device with cooperative color filters
AssigneeHewlett-Packard Development Company, L.P.
InventorsWilliam J. Allen, Winthrop D. Childers, Clement C. Lo
Life of this patent
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Abstract
The present invention relates to a display device that includes an illumination source configured to direct light along an optical path, a first color filter having a first number of color regions, and a second color filter having a second number of color regions, the first and second color filters being configured so as to cooperate in sequentially filtering the directed light to display an image.
Claims28
A display device comprising:
- an illumination source configured to direct light along an optical path;
- a first color filter having a first number of color regions;
- and
- a second color filter having a second number of color regions;
- wherein the first and second color filters are configured so as to selectively cooperate in sequentially filtering the directed light to display an image.
A method of displaying an image comprising:
- providing an illumination source;
- directing light from the illumination source along an optical path;
- sequentially filtering the directed light with at least one of plural cooperative color filters.
A sequential color filter system for filtering light directed along an optical path, the sequential color filter system comprising:
- a first color wheel having a plurality of color regions;
- and
- a second color wheel having a plurality of color regions including at least one white region;
- the first and second color wheels being configured so as to cooperate in sequentially filtering the light directed along the optical path.
A display device comprising:
- an illumination source configured to direct light along an optical path;
- a first sequential color filter means disposed along the optical path;
- and
- a second sequential color filter means disposed along the optical path;
- at least one of the first sequential color filter means and the second sequential color filter means being movable through the optical path to effect cooperative sequential filtering of the directed light to display an image.
A sequential color filter system for filtering light directed along an optical path, the sequential color filter system comprising:
- a first sequential color filter movable within the optical path;
- and
- a second sequential color filter movable within the optical path;
- the first sequential color filter and second sequential color filter each having a plurality of color regions configured to cooperatively filter light directed along the optical path.
Dependencies are inferred from the claim text.