US PATENT SUBCLASS 349 / 168
.~ Utilizing change between diverse phases (e.g., cholesteric to nematic)


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}
168.~ Utilizing change between diverse phases (e.g., cholesteric to nematic)


DEFINITION

Classification: 349/168

Utilizing change between diverse phases (e.g., cholesteric to nematic):

(under subclass 167) Subject matter wherein applied excitation to the liquid crystal material induces a conversion from one mesophase to another during the operation of the device.

(1) Note. Smectic, cholesteric, and nematic are all mesophases of liquid crystal.

(2) Note. Excluded from here is a liquid crystal phase change as a nominal manufacturing step. For such excluded subject matter, see SEARCH THIS CLASS, SUBCLASS below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

188, for liquid crystal phase change as a nominal manufacturing step.