US PATENT SUBCLASS 345 / 54
.~.~.~.~.~ Field period polarity reversal

Current as of: June, 1999
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345 /   HD   COMPUTER GRAPHICS PROCESSING, OPERATOR INTERFACE PROCESSING, AND SELECTIVE VISUAL DISPLAY SYSTEMS

30  DF  PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT) {4}
33  DF  .~ Segmented display elements {7}
48  DF  .~.~ Light-controlling display elements {2}
50  DF  .~.~.~ Liquid crystal elements {3}
53  DF  .~.~.~.~ Specific waveform (e.g., square waveforms, sinusoidal) {1}
54.~.~.~.~.~ Field period polarity reversal

DEFINITION

Classification: 345/54

Field period polarity reversal:

(under subclass 53) Subject matter in which the waveforms applied to the display elements* are alternatively supplied in a positive and negative manner.