US PATENT SUBCLASS 349 / 64
.~.~.~ Diffuser between light source and liquid crystal

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

56  DF  PARTICULAR STRUCTURE {7}
61  DF  .~ Particular illumination {4}
62  DF  .~.~ With integral optical element for guiding or distributing light from the light source {5}
64.~.~.~ Diffuser between light source and liquid crystal

DEFINITION

Classification: 349/64

Diffuser between light source and liquid crystal:

(under subclass 62) Subject matter wherein the optical means scatters or disperses light before it enters the liquid crystal device.

(1) Note. Excluded from this subclass are diffusing elements behind the liquid crystal. Also excluded are diffusing elements between the liquid crystal device and the viewer. For such excluded subject matter, see SEARCH THIS CLASS, SUBCLASS below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

112, for the use of diffusing elements behind the liquid crystal or between the liquid crystal device and a viewer.