Display for contrast enhancement
First Claim
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1. A display for enhancing contrast and reducing glare, comprising:
- a target means for absorbing light;
a concave reflector means for focusing light incident thereon including specular reflection onto said target means; and
means selectively operable for affecting light incident thereon by selectively scattering or transmitting light in response to a prescribed input, said selectively operable means including first and second major surfaces having a concave configuration substantially the same as said concave reflector means, and said target means located in front of and on a viewing side of said selectively operable means.
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Accused Products
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.
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Citations
12 Claims
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1. A display for enhancing contrast and reducing glare, comprising:
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a target means for absorbing light; a concave reflector means for focusing light incident thereon including specular reflection onto said target means; and means selectively operable for affecting light incident thereon by selectively scattering or transmitting light in response to a prescribed input, said selectively operable means including first and second major surfaces having a concave configuration substantially the same as said concave reflector means, and said target means located in front of and on a viewing side of said selectively operable means.
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2. A display, comprising:
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a film of nematic curvilinearly aligned phases liquid crystal material having first and second surfaces, and selectively operable for affecting light incident thereon by transmitting light in response to a prescribed input, and at least one of scattering and absorbing light in the absence of said prescribed input; target means located in front of and on a viewing side of said film for absorbing light incident thereon; and reflector means disposed on a non-viewing said of said film, said reflector means having a concave surface and said film disposed along said surface so that said first and second surfaces and said reflector means present a concave surface to light incident thereon from the viewing side thereof for focusing light transmitted by said film within a viewing angle onto said target means to enhance the contrast of and reduce glare from the display. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification