OPTICAL FILMS FOR DIRECTING LIGHT TOWARDS ACTIVE AREAS OF DISPLAYS
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Abstract
In various embodiments of the invention, an interferometric display device is provided having an external film with a plurality of structures that redirect light from an inactive area of the display to an active area of the display. Light incident on the external film that would normally continue towards an inactive area of the display is either reflected, refracted, or scattered towards an active area of the display comprising moveable and static reflective surfaces that form an optical cavity.
130 Citations
54 Claims
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1-33. -33. (canceled)
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34. A display comprising:
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a substrate; a light-modulating array comprising a plurality of light-modulating elements, said light-modulating array comprising a plurality of active and non active regions; and a plurality of light redirecting elements disposed on a side of the light-modulating elements such that the plurality of light redirecting elements are concentrated above the non active regions of the light-modulating array in comparison to the active regions of the light-modulating array, wherein the light redirecting elements are configured to re-direct light propagating from above the light redirecting elements and the substrate and incident on the redirecting elements into the active regions of the light-modulating array. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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Specification