US PATENT SUBCLASS 349 / 173
.~.~.~ Greyscale resulting from liquid crystal property other than solely Smectic A

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

167  DF  WITH SPECIFIED NONCHEMICAL CHARACTERISTIC OF LIQUID CRYSTAL MATERIAL {6}
171  DF  .~ Within smectic phase {1}
172  DF  .~.~ Within chiral smectic phase (includes ferroelectric) {2}
173.~.~.~ Greyscale resulting from liquid crystal property other than solely Smectic A

DEFINITION

Classification: 349/173

Greyscale resulting from liquid crystal property other than solely smectic A:

(under subclass 172) Subject matter wherein the liquid crystal molecules have more than two positions which can be used to modulate light at different intensities.

(1) Note. Included here are uniform boundary conditions.

SEE OR SEARCH CLASS

345, Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems,

89, for greyscale capability in a liquid crystal display device.