Beam deflector, holographic display device having the same, and method of driving the beam deflector
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United States of America Patent
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Jan 19, 2021
Grant Date -
Oct 31, 2019
app pub date -
Sep 4, 2018
filing date -
Apr 30, 2018
priority date (Note) -
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Abstract
A beam deflector, a holographic display device including the beam deflector, and a method of driving the beam deflector are provided. The beam deflector includes first electrodes spaced apart from each other on a first substrate, second electrodes spaced apart from each other on a second substrate, a liquid crystal layer between the first substrate and the second substrate, and a controller configured to cause active prisms to be formed in the liquid crystal layer and to form a floating zone by turning off a voltage of at least one of the first electrode and the second electrode disposed between adjacent ones of the active prisms.
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