Back lighted replaceable image sheet display apparatus
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United States of America Patent
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May 17, 2011
Grant Date -
N/A
app pub date -
Jun 19, 2009
filing date -
Jun 20, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
There is disclosed a backlit display structure with multiple LED's arranged to transmit light into a light guide plate configured to uniformly illuminate the back of a readily replaceable translucent image sheet. The display may be incorporated with a decorative frame which also may be illuminated by the same or different LED's. The display powered by a rechargeable battery pack may also be incorporated in table top boxes for condiments, straws, napkins or other conveniences for restaurant customers where it is useful for displaying replaceable advertising or current featured menu items. In another form the guide plate does not uniformly illuminate an image sheet but only illuminates temporary marks thereon from a crayon or marker, thereby providing an illuminated blackboard.
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International Classification(s)
Cited Art Landscape
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