Frontlit illuminated touch panel

Details Frontlit illuminated touch panel Frontlit illuminated touch panel

2007-08-07

2007-08-07

Nguyen, Kevin M. (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C385S025000, C362S035000

Reexamination Certificate

active

10799998

ABSTRACT:
A frontlit touch panel for use with a reflective light valve, comprising a front light guide having at least one light input face that supplies light to the guide, a viewing face, a light output face opposite the viewing face, and at least one component of a touch-sensitive transducer, the light output face having a light extraction layer thereon having a substantially flat light exit face and containing buried reflective facets that extract supplied light from the guide through the light exit face. The touch panel can be used with a light source, reflective light valve and suitable control electronics to form a compact, efficient illuminated touch panel display assembly.

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