Optical films for directing light towards active areas of displays
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United States of America Patent
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Jul 26, 2011
Grant Date -
Dec 3, 2009
app pub date -
Jun 3, 2009
filing date -
Sep 27, 2004
priority date (Note) -
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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.
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