Multi-primary display with spectrally adapted back-illumination
First Claim
1. A device for displaying a color image comprising:
- an illumination source comprising a plurality of color light sources, each able to produce respective light of each of m different wavelength spectra, wherein m is equal to or greater than three;
an array of attenuating elements, each able to selectively attenuate the light produced by said plurality of color light sources of said illumination source according to an attenuation pattern corresponding to a gray-level representation of said color image;
an array of color sub-pixel filter elements able to receive selectively attenuated light from said array of attenuating elements, each sub-pixel filter element able to transmit light of one of n different colors, wherein n is equal to or greater than four; and
an optics unit to combine said light of said plurality of color light sources to form a substantially uniform illumination of light of said n colors across said array of attenuating elements.
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Abstract
Some embodiments of the invention provide a device, system and method for displaying a color image. According to some exemplary embodiments of the invention a device for displaying a color image may include an illumination source including a plurality of light-producing elements able to produce light of each of m different wavelength spectra, wherein m is equal to or greater than three. The device may also include an array of attenuating elements able to spatially selectively attenuate the light produced by the illumination source according to an attenuation pattern corresponding to a gray-level representation of the color image, and an array of color sub-pixel filter elements able to receive selectively attenuated light from the array of attenuating elements, each sub-pixel filter element able to transmit light of one of n different primary colors, wherein n is equal to or greater than four.
111 Citations
28 Claims
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1. A device for displaying a color image comprising:
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an illumination source comprising a plurality of color light sources, each able to produce respective light of each of m different wavelength spectra, wherein m is equal to or greater than three; an array of attenuating elements, each able to selectively attenuate the light produced by said plurality of color light sources of said illumination source according to an attenuation pattern corresponding to a gray-level representation of said color image; an array of color sub-pixel filter elements able to receive selectively attenuated light from said array of attenuating elements, each sub-pixel filter element able to transmit light of one of n different colors, wherein n is equal to or greater than four; and an optics unit to combine said light of said plurality of color light sources to form a substantially uniform illumination of light of said n colors across said array of attenuating elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system for displaying a color image comprising:
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an illumination source comprising a plurality of color light sources, each able to produce respective light of each of m different wavelength spectra, wherein m is equal to or greater than three; a converter to convert three-primary-color input data representing said color image into converted image data representing said color image in terms of n colors; an array of attenuating elements, each able to selectively attenuate the light produced by said plurality of color light sources of said illumination source according to an attenuation pattern corresponding to a gray-level representation of said converted image data; an array of color sub-pixel filter elements able to receive selectively attenuated light from said array of attenuating elements, each sub-pixel filter element able to transmit light of one of n different colors, wherein n is equal to or greater than four; and an optics unit to combine the light of said plurality of color light sources to form substantially uniform illumination of light of said n colors across said array of attenuating elements. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification