HIGH EFFICIENCY AND LONG LIFE OPTICAL SPECTRUM CONVERSION DEVICE AND PROCESS
First Claim
1. A spectral conversion device comprising:
- a plurality of discrete units, the plurality of discrete units including transparent discrete units and dyed discrete units, wherein the dyed discrete units are dyed with a photoluminescent material at a concentration greater than or equal to an amount sufficient to absorb and convert substantially all input light from a light source to a desired output spectrum; and
a coating material disposed around the plurality of discrete units, wherein the coating material binds the plurality of discrete units to form a matrix, further wherein a thickness of the coating material determines the distance between each of the plurality of discrete units;
wherein when the plurality of discrete units are positioned over the light source, the input light passing through the transparent discrete units is not converted, and the input light passing through the dyed discrete units is converted, further wherein the emitted input light and the converted input light correspond to the desired output spectrum to produce one or more colors.
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Accused Products
Abstract
A spectral conversion device including a plurality of discrete units dyed with a photoluminescent material at a concentration greater than or equal to an amount sufficient to absorb and convert substantially all input light from a light source to a desired output spectrum, and a coating material disposed around the discrete units, wherein the coating material binds the plurality of discrete units to form a matrix, wherein when the plurality of discrete units are positioned over the light source, the input light passing through the transparent discrete units is not converted, and the input light passing through the doped discrete units is converted to red and green wavelengths, further wherein the emitted input light and the converted red and green light correspond to the desired output spectrum to produce one or more colors. An associated method and an associated device used with flat panel image displays are also provided.
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Citations
42 Claims
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1. A spectral conversion device comprising:
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a plurality of discrete units, the plurality of discrete units including transparent discrete units and dyed discrete units, wherein the dyed discrete units are dyed with a photoluminescent material at a concentration greater than or equal to an amount sufficient to absorb and convert substantially all input light from a light source to a desired output spectrum; and a coating material disposed around the plurality of discrete units, wherein the coating material binds the plurality of discrete units to form a matrix, further wherein a thickness of the coating material determines the distance between each of the plurality of discrete units; wherein when the plurality of discrete units are positioned over the light source, the input light passing through the transparent discrete units is not converted, and the input light passing through the dyed discrete units is converted, further wherein the emitted input light and the converted input light correspond to the desired output spectrum to produce one or more colors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A spectral conversion device comprising:
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one or more photoluminescent color conversion matrices corresponding to an individual color element of an image display device having a plurality of light switches, wherein the one or more photoluminescent matrices provide an output spectrum for the corresponding individual color element; wherein the photoluminescent color conversion matrices include a plurality of discrete units, the plurality of discrete units including transparent discrete units and dyed discrete units, wherein the dyed discrete units are dyed with a photoluminescent material at a concentration greater than or equal to an amount sufficient to absorb and convert substantially all input light from a light source to a desired output spectrum, and a coating material disposed around the plurality of discrete units, wherein the coating material binds the plurality of discrete units to form the color conversion matrix, further wherein a thickness of the coating material determines the distance between each of the plurality of discrete units. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 35)
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34. A method of improving life and efficiency of spectral conversion comprising:
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providing a plurality of discrete units, the plurality of discrete units including transparent discrete units and dyed discrete units; dying the dyed discrete units with a photoluminescent material at a concentration greater than or equal to an amount sufficient to absorb and convert substantially all input light from a light source to a desired output spectrum; providing a coating material around the plurality of discrete units, wherein the coating material binds the plurality of discrete units to form a matrix, further wherein a thickness of the coating material determines the distance between each of the plurality of discrete units; and positioning the plurality of discrete units proximate the light source, wherein the input light passing through the transparent discrete units is not converted, and the input light passing through the dyed discrete units is converted, further wherein the emitted input light and the converted input light correspond to the desired output spectrum to produce one or more colors. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42)
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Specification