Directional display apparatus
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United States of America Patent
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Jan 10, 2017
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app pub date -
May 17, 2013
filing date -
May 18, 2012
priority date (Note) -
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Abstract
Disclosed is a light guiding valve apparatus including an imaging directional backlight, an illuminator array and an observer tracking system arranged to achieve control of an array of illuminators which may provide a directional display to an observer over a wide lateral and longitudinal viewing range, wherein the number of optical windows presented to the observer as viewing windows is controlled dependent on the lateral and longitudinal position or speed of an observer.
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