US PATENT SUBCLASS 349 / 133
.~.~.~.~.~ With chiral smectic liquid crystal (includes ferroelectric liquid crystal)

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

56  DF  PARTICULAR STRUCTURE {7}
84  DF  .~ Having significant detail of cell structure only {17}
122  DF  .~.~ Particular nonoptical film or layer (e.g., adhesive layer, barrier layer) {3}
123  DF  .~.~.~ Alignment layer {6}
132  DF  .~.~.~.~ For parallel alignment {2}
133.~.~.~.~.~ With chiral smectic liquid crystal (includes ferroelectric liquid crystal) {2}
134  DF  .~.~.~.~.~.~> With particular pretilt angle from the alignment layer
135  DF  .~.~.~.~.~.~> With particular polymer composition of the alignment layer (e.g., fluorine- containing aliphatic polyamide)

DEFINITION

Classification: 349/133

With chiral smectic liquid crystal (includes ferroelectric liquid crystal):

(under subclass 132) Subject matter wherein the alignment layer is employed to orient the molecules in a chiral smectic liquid crystal material.