Optical dithering system using birefringence for optical displays and method
OwnerJames L. Fergasoninventor
Life of this patent
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Abstract
A passive dithering display system includes an optical display including a plurality of pixels with optical dead space between the pixels for producing an image, and a birefringent material for shifting one polarization component of the image relative to a second polarization component of the image such that the shifted polarization component lies in the dead space. Thus, the system of the invention can change the location of an optical signal, and the change can be used to improve resolution of a display, to reduce fixed pattern noise of a display, to facilitate locating and hiding of circuitry, to facilitate overlapping of tiles or pixels, etc.
Claims9
A display system, comprising:
- an optical display for producing an image;
- and
- first birefringent means for refracting one component of the image relative to a second component of the image based on polarization characteristics of said components to produce a plurality of adjacent images, and wherein said optical display produces nonpolarized light.
A display system, comprising:
- an optical display including a plurality of pixels with optical dead space between said pixels for producing an image;
- and
- birefringent means for shifting one polarization component of the image relative to a second polarization component of the image such that said shifted polarization component lies in said dead space.
A method of reducing optical background noise, comprising the steps of:
- displaying a plurality of pixels with optical dead space between said pixels for producing an image;
- and
- shifting one polarization component of the image relative to a second polarization component of the image such that said shifted polarization component lies in said dead space.
Dependencies are inferred from the claim text.