Card – picture – or sign exhibiting – Illuminated sign – Edge illuminated
Patent
1990-12-21
1992-08-18
Brittain, James R.
Card, picture, or sign exhibiting
Illuminated sign
Edge illuminated
G09F 1318
Patent
active
051387832
ABSTRACT:
A laminate artwork system includes a plurality of stacked, uniformly spaced light transmitting artwork panels, each having a portion of an overall artwork image etched thereon. The artwork panels are generally rectangular and have aligned edges positioned within a frame. The frame houses fluorescent lamps generally adjacent to and extending the length of the panel edges, and includes an inner reflective surface which directs substantially all of the emitted light towards the panel edges. Disposed between the lamp and the panel edges are a plurailty of color filters and shutters which control the transmission and intensity of light permitted to pass therethrough to the edges. The shutters comprise liquid crystal gates responsive to an input signal, which are modulated to allow a varied amount of light to pass through so that different levels of brightness and/or color of the artwork image may be obtained. A unique visual appearance is attained by illuminating the edge of the artwork panels such that the panels themselves act as conduits for the light to the artwork images. Depending on modulation of the liquid crystal gates, various colors and moving images may be obtained in the stacked panels.
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Bonifanti J.
Brittain James R.
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