Card – picture – or sign exhibiting – Changing exhibitor – Alphanumeric device
Patent
1997-12-17
2000-05-09
Silbermann, Joanne
Card, picture, or sign exhibiting
Changing exhibitor
Alphanumeric device
G09F 304
Patent
active
060586346
ABSTRACT:
Light emitting artwork that includes a printed circuit board, at least one least one LED disposed on the printed circuit board, a surface material disposed on the printed circuit board and having an image thereon that together with the at least one LED produce customized light emitting artwork, and a backboard displaced from the printed circuit board. The at least one LED is at least one tri-color LED connected in parallel with each other and with a programmable logic control circuit and with a DC power source having a polarity, with a current limiting resister connected in series with each of the at least one tri-color LED. The programmable logic control circuit allows the at least one tri-color LED to achieve one of three states, the three states being: the at least one tri-color LED is illuminated one of red and green by maintaining the polarity of the DC power source as is; the at least one tri-color LED is illuminated one of green and red by reversing the polarity of the DC power source; and the at least one tri-color LED is illuminated orange by converting the DC power source to AC so as to cause the at least one tri-color LED to oscillate fast enough from red to green and vise versa.
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Miller, P.E Richard L.
Silbermann Joanne
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