CPC G09C 1/00 (2013.01) [G02F 1/1313 (2013.01); G02F 1/13439 (2013.01); G02F 1/133524 (2013.01); G02F 1/134309 (2013.01); H04L 9/0618 (2013.01); H04L 9/0631 (2013.01); H04L 9/0637 (2013.01); H04L 9/0866 (2013.01); G02F 1/133723 (2013.01); H04L 2209/12 (2013.01)] | 20 Claims |
1. An apparatus, comprising:
an optical source configured to output a constant optical signal;
a liquid crystal cell, configured to receive the constant optical signal, having first electrodes, and one or more second electrodes opposite the first electrodes; and
a sensor configured to provide a sensor output based on sensing an optical output of the liquid crystal cell.
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