US PATENT SUBCLASS 349 / 1
LIQUID CRYSTAL SYSTEM

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

1LIQUID CRYSTAL SYSTEM {9}
2  DF  .~> Liquid crystal for recording or imaging on photosensitive medium {2}
5  DF  .~> Projector including liquid crystal cell (s) {3}
11  DF  .~> Heads-up display
12  DF  .~> Liquid crystal writing tablet
13  DF  .~> Liquid crystal eyewear (glasses, goggles, etc.) {1}
15  DF  .~> Stereoscopic
16  DF  .~> Liquid crystal window
17  DF  .~> Computational system employing liquid crystal element (neural network, correlation device, optical computer)
18  DF  .~> Variable or rotatable retarder used with other retarders to produce filtering effects (Solc, Lyot, Partial)

DEFINITION

Classification: 349/1

LIQUID CRYSTAL SYSTEM:

(under the class definition) Subject matter wherein the liquid crystal is a significant component of a larger system.

(1) Note. Systems such as watches, computers, calculators, etc., in which the liquid crystal cell is merely used in the system, with no detail of the function or structure of the cell are excluded from this subclass. For such excluded subject matter, see the appropriate class for such external systems.