US PATENT SUBCLASS 349 / 37
.~.~ Polarity based driving

Current as of: June, 1999
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349 /   HD   LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS

19  DF  PARTICULAR EXCITATION OF LIQUID CRYSTAL {6}
33  DF  .~ Electrical excitation of liquid crystal (i.e., particular voltage pulses, AC vs. DC, threshold voltages, etc.) {8}
37.~.~ Polarity based driving

DEFINITION

Classification: 349/37

Polarity based driving:

(under subclass 33) Subject matter wherein the liquid crystal state is determined by the polarity of the voltage applied to the liquid crystal.