US PATENT SUBCLASS 349 / FOR 108
.~.~.~ For ferroelectric liquid crystal (359/56)

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349 /   HD   LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS

193  DF  LIQUID CRYSTAL OPTICAL ELEMENT {21}
FOR 106  DF  .~ Having electrodes arranged into rows and columns (359/54) {2}
FOR 107  DF  .~.~ With liquid crystal electrode excitation (359/55) {2}
FOR 108.~.~.~ For ferroelectric liquid crystal (359/56)

DEFINITION

Classification: 349/FOR.108

For ferroelectric liquid crystal:

Foreign Art Collection wherein the energizing circuit is particularly adapted to excite a liquid crystal material having a ferroelectric property.