US PATENT SUBCLASS 345 / 176
.~.~ Transparent substrate having light entrapment capability (i.e., waveguides)

Current as of: June, 1999
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345 /   HD   COMPUTER GRAPHICS PROCESSING, OPERATOR INTERFACE PROCESSING, AND SELECTIVE VISUAL DISPLAY SYSTEMS

156  DF  DISPLAY PERIPHERAL INTERFACE INPUT DEVICE {8}
173  DF  .~ Touch panel {5}
176.~.~ Transparent substrate having light entrapment capability (i.e., waveguides)

DEFINITION

Classification: 345/176

Transparent substrate having light entrapment capability (i.e., waveguide):

(under subclass 173) Subject matter wherein the touch panel includes a transparent material mounted on the display device* for entrapping the light within the substrate.

SEE OR SEARCH CLASS

385, Optical Waveguides, appropriate subclasses for optical waveguides in general.