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US 4,772,102 AGranted
Display with light traps between reflector and scattering means
AssigneeTaliq Corporation
InventorsJames L. Fergason, Robert Parker
Life of this patent
Estimating the term…
Abstract
A display comprising optical means for presenting an absence of light over a controlled viewing angle and means for selectively scattering or transmitting light in response to a prescribed input to effect a display of information within said viewing angle.
Claims13
A display comprising:
- means selectively operable for affecting light incident thereon by selectively scattering or transmitting light in response to a prescribed input;
- and
- reflecting means located on a non-viewing side of said selectively operable means for focusing light transmitted by said selectively operable means within a prescribed viewing angle onto a target means disposed between said selectively operable means and said reflecting means for absorbing light incident thereon to enhance the contrast of the display.
Dependencies are inferred from the claim text.