US PATENT SUBCLASS 345 / 50
.~.~.~ Liquid crystal elements

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.~.~.~ Liquid crystal elements {3}
51  DF  .~.~.~.~> Display element selection circuitry
52  DF  .~.~.~.~> Power supply generating circuitry
53  DF  .~.~.~.~> Specific waveform (e.g., square waveforms, sinusoidal) {1}

DEFINITION

Classification: 345/50

Liquid crystal elements:

(under subclass 48) Subject matter in which the segmented display elements* include liquid crystal display elements* or liquid with crystalline properties.

SEE OR SEARCH THIS CLASS, SUBCLASS:

87+, for matrix liquid crystal display devices.

SEE OR SEARCH CLASS

349, Liquid Crystal Cells, Elements and Systems,

142, for segmented or fixed pattern liquid crystal cell structure.