Method and device for reflective display with time sequential color illumination
First Claim
1. A display device, comprising:
- at least one interferometric light modulator configured to reflect light, said at least one interferometric light modulator having a spectral response including two or more reflectance peaks in the visible spectrum; and
a light source having an emission spectra that includes at least one emission peak at least partially overlapping one of said two or more reflectance peaks.
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Accused Products
Abstract
In various embodiments of the invention, a display device comprises an illumination apparatus configured to emit light of a different color at different times and at least one interferometric light modulating device illuminated by the illumination apparatus. In certain preferred embodiments, interferometric light modulating devices are illuminated for short durations with different color light, the durations of the time being sufficiently short to produce color fusion or blending of colors as perceived by the human eye. The interferometric light modulating device may comprise a white interferometric light modulating device that reflects white light in one state. The interferometric light modulating device may also have a reflectivity spectrum that includes a least two color peaks.
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Citations
35 Claims
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1. A display device, comprising:
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at least one interferometric light modulator configured to reflect light, said at least one interferometric light modulator having a spectral response including two or more reflectance peaks in the visible spectrum; and
a light source having an emission spectra that includes at least one emission peak at least partially overlapping one of said two or more reflectance peaks. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A display device, comprising:
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means for interferometrically modulating light, wherein the means for modulating light is capable of reflecting light having a plurality of intensity peaks in the visible spectrum;
means for selectively illuminating said means for interferometrically modulating light with light including at least said plurality of intensity peaks in the visible spectrum; and
means for controlling the selective illumination of said means for interferometrically modulating light. - View Dependent Claims (15, 16, 17)
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18. A method of manufacturing an interferometric light modulating device, comprising:
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providing a plurality of pixel elements, each pixel element comprising at least one interferometric light modulator having a spectral response that includes two or more reflectance peaks in the visible spectrum; and
providing a light source configured to selectively illuminate said plurality of pixel elements with light having one or more spectral peaks substantially overlapping said two or more reflectance peaks. - View Dependent Claims (19, 20, 21, 22, 24, 25, 26, 27, 28)
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23. The method of 18, wherein the at least one interferometric light modulator of the plurality of pixel elements each comprising an optical cavity having an open state and a closed state, wherein the at least one interferometric light modulator of the plurality of pixel elements are configured to have essentially the same spectral response in an open state and essentially the same spectral response in a closed state.
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29. An interferometric light modulating device, comprising:
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a plurality of pixel elements, each pixel element comprising an interferometric light modulator switchable between different reflective states; and
an illumination apparatus configured to selectively illuminate the plurality of pixel elements with light of different color at different times. - View Dependent Claims (30, 31)
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32. A display device, comprising:
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an illumination apparatus configured to emit light comprising an emission spectra having a spectral output that varies with time;
at least one light modulating device configured to reflect light from said illumination apparatus, said at least one light modulating device comprising an optical cavity formed by a pair of reflective surfaces; and
a control system configured to vary the spectral output of the illumination apparatus. - View Dependent Claims (33, 34)
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35. An interferometric light modulating device, comprising:
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means for interferometrically modulating light switchable between different reflective states; and
means for selectively illuminating said means for interferometrically modulating light with light of different color at different times.
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Specification