Continuous use display system
AssigneeHewlett-Packard Development Company, L.P.
InventorsThomas J. Gilg, Aloke Gupta
Life of this patent
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Abstract
One embodiment of a display system includes a first light source that projects a first projected video light to define a first viewable video image, a second light source that projects a second projected video light to define a second viewable video image identical to the first viewable video image wherein the first and second viewable video images together define a displayed video light image, and a controller that fades out projection of the first projected video light and simultaneously fades in projection of the second projected video light such that a light intensity of the displayed video light image remains substantially constant.
Claims19
A display system, comprising:
- a first light source that projects a first projected video light to define a first viewable video image;
- a second light source that projects a second projected video light to define a second viewable video image identical to said first viewable video image wherein said first and second viewable video images together define a displayed video light image;
- and
- a controller that fades out projection of said first projected video light and simultaneously fades in projection of said second projected video light such that a light intensity of said displayed video light image remains substantially constant.
A method of using a display system, comprising:
- projecting a first video image from a first projector;
- projecting a second video image from a second projector, wherein said first video image and said second video image are identical and define a displayed video light image on a display region;
- and
- controlling on/off operation of said first projector and said second projector such that each of said first and second projectors alternate through an on-and-off operational sequence during constant projection of said displayed video light image by said system, wherein said on-and-off operational sequence of said first projector is offset with respect to said on-and-off operational sequence of said second projector.
A control system for controlling a display system that includes at least two video projectors that each project an identical video image to define a displayed video image on a display region, comprising computer operable instructions that control on and off operation of said at least two video projectors such that one of said at least two video projectors is on while another of said at least two video projectors is off, and such that an intensity of said displayed video image displayed on said display region remains constant.
Dependencies are inferred from the claim text.