Card – picture – or sign exhibiting – Changing exhibitor – Motor operated
Patent
1996-07-22
1998-10-06
Green, Brian K.
Card, picture, or sign exhibiting
Changing exhibitor
Motor operated
40437, 40509, G09F 1100
Patent
active
058159681
ABSTRACT:
A display device for sequentially displaying a plurality of images interlaced on a single mosaic transparency includes a frame and a drive assembly engageable with the mosaic and operative to drive the mosaic through a closed loop path. A thermal compensation device is mounted on the frame and engaged with a substantially opaque mask overlying the mosaic and formed with a uniform aperture pattern for sequential alignment with the images formed on the mosaic. The thermal compensation device is responsive to temperature changes within the display device to shift the mask relative to the frame such that the mask follows the shifting of the mosaic due to such temperature changes to thereby maintain the mask and mosaic in the proper relative positions for precise registration of the image pixels formed on the mosaic with the apertures in the mask.
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Admotion Corporation
Green Brian K.
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