US PATENT SUBCLASS 349 / 163
.~.~ Nonchiral additive in the liquid crystal material

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}
163.~.~ Nonchiral additive in the liquid crystal material {3}
164  DF  .~.~.~> Fluorescent additive
165  DF  .~.~.~> Pleochroic dye
166  DF  .~.~.~> Nonspacer particles significantly smaller than liquid crystal thickness (e.g., scattering centers, ferromagnetic particles, etc.)

DEFINITION

Classification: 349/163

Nonchiral additive in the liquid crystal material:

(under subclass 84) Subject matter wherein a material is added to the liquid crystal material other than for promoting a twist of the liquid crystal molecules.

(1) Note. Included here are additives which selectively absorb light under certain conditions and additives which align with electric or magnetic fields applied to the liquid crystal.