Optically addressable display and method driven by polarized emissions
AssigneeHewlett-Packard Development Company, L.P.
InventorGregory J May
Life of this patent
Estimating the term…
Abstract
An optically addressable display of a preferred embodiment uses emissions having plural polarizations to define a corresponding number of color channels. A data encoder applies data for each of the color channels to corresponding ones of the plural polarizations. The display also includes plurality of pixels for producing a color display. There is a plurality of receptors including at least one receptor for each pixel. The receptors activate pixels depending upon which, if any, of the plural polarizations is received.
Claims36
An optically addressable display comprising:
- a projection device including,
- a mechanism to create emissions having plural polarizations, wherein the number of polarizations defines a corresponding number of color channels;
- and
- a data encoder to apply data for each of the color channels to the emissions having corresponding ones of the plural polarizations;
- and
- a screen including,
- a plurality of pixels for producing a color display;
- and
- a plurality of receptors including at least one receptor for each of said plurality of pixels responsive to a corresponding polarization state for each of the color channels, said plurality of receptors activating said pixels using a corresponding color channel depending upon which, if any, of the emissions having a corresponding polarization state for said corresponding color channel is received.
A method of encoding color data to activate an optically addressable display including a plurality of pixels, the method comprising the steps of:
- at a projection device:
- producing emissions having different polarizations;
- for each pixel, applying data to each of said emissions having different polarizations by selectively passing said emissions having different polarizations to said pixels;
- at the optically addressable display:
- at each pixel,
- responding to each of said emissions having different polarizations with a corresponding receptor;
- and
- producing a different display for each of said emissions having different polarizations when responded to by the corresponding receptor.
A method of encoding color data to activate an optically addressable display including a plurality of pixels, the method comprising the steps of:
- at a projection device:
- producing emissions having different polarizations;
- for each pixel, applying data to each of said emissions having different polarizations by selectively passing said emissions having different polarizations to said pixels;
- at the optically addressable display:
- responding to each of said emissions having different polarizations;
- at each pixel, producing a different display for each of said emissions having different polarizations when received wherein said step of applying data comprises selectively shuttering said emissions having different polarizations.
A method of encoding color data to activate an optically addressable display including a plurality of pixels, the method comprising the steps of:
- at a projection device:
- producing emissions having different polarizations;
- for each pixel, applying data to each of said emissions having different polarizations by selectively passing said emissions having different polarizations to said pixels;
- at the optically addressable display:
- responding to ech of said emissions having different polarizations;
- at each pixel, producing a different display for each of said emissions having different polarizations when received wherein said step of applying data comprises selectively reflecting said emissions having different polarizations toward or away from a corresponding pixel.
A method of encoding color data to activate an optically addressable display including a plurality of pixels, the method comprising the steps of:
- at a projection device:
- producing emissions having different polarizations;
- for each pixel, applying data to each of said emissions having different polarizations by selectively passing said emissions having different polarizations to said pixels;
- at the optically addressable display:
- responding to each of said emissions different polarizations;
- p2 at each pixel, producing a different display for each of said emissions having different polarizations when received wherein said step of applying data applies data to the emissions having different polarizations simultaneously.
A method of encoding color data to activate an optically addressable display, the method comprising the steps of:
- at a projection device:
- defining multiple color channels with emissions having different polarizations;
- and
- applying data, on a pixel-by-pixel and channel-by-channel basis to said emissions by permitting emissions to reach a pixel in the optically addressable display indicated to be on by the data;
- and
- at the optically addressed display:
- responding to each of said emission having different polarizations;
- filtering to make each set of commonly colored display elements responsive to a different polarization state than other sets of commonly colored display elements.
An optically addressable display comprising:
- a projection device including,
- means for directing emissions having plural polarization states toward an array of pixels;
- and
- means for selectively passing emissions of each of the plural polarization states according to applied data;
- and
- a screen, including,
- at each pixel,
- receptor means responsive to each of the plural polarization states;
- and
- means for actively producing plural color displays, on for each of the plural polarization states.
Dependencies are inferred from the claim text.