METHOD AND DEVICE FOR PROVIDING ILLUMINATION TO INTERFEROMETRIC MODULATORS
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Abstract
An Interferometric Modulator (IMod) is a microelectromechanical device for modulating light using interference. The colors of these devices may be determined in a spatial fashion, and their inherent color shift may be compensated for using several optical compensation mechanisms. Brightness, addressing, and driving of IMods may be accomplished in a variety of ways with appropriate packaging, and peripheral electronics which can be attached and/or fabricated using one of many techniques. The devices may be used in both embedded and directly perceived applications, the latter providing multiple viewing modes as well as a multitude of product concepts ranging in size from microscopic to architectural in scope.
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Citations
45 Claims
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1-39. -39. (canceled)
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40. A spatial light modulator comprising:
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a light-modulating array comprising a plurality of light-modulating elements each comprising an optical cavity defined by first and second reflective surfaces that produce optical interference, said first and second reflective surfaces moveable with respect to each other to alter said optical cavity and enable modulation of said optical interference, said plurality of light-modulating elements having a front side for viewing light modulated by said light-modulating array; and at least one reflecting element disposed so as to reflect light propagating from a rear side of the plurality of light-modulating elements into at least one of said optical cavities for modulation, wherein said at least one reflecting element is disposed on the front side of said plurality of light-modulating elements. - View Dependent Claims (41, 42, 43, 44, 45)
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Specification