Rear projection screen with uniform brightness for tiling the images from an array of projectors
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United States of America Patent
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May 6, 1997
Grant Date -
N/A
app pub date -
Sep 20, 1995
filing date -
Sep 20, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A novel rear projection screen that displays images with substantially uniform brightness over a wider field-of-view than prior rear projection screens, comprising a first diffusing assembly for diffusing the image and a second diffusing assembly for further diffusing the image from the first diffuser. In the preferred embodiment, the first and second diffusing assemblies comprise an input diffusing screen and a fiber optic array, respectively, with an output diffusing screen used at the output end of the fiber optic array. A preferred flat panel tiled display system that incorporates the present invention includes a plurality of collimated light sources, with respective liquid crystal display assemblies that impart images onto the collimated light beams. An imager images the image-bearing light beams onto the rear projection screen described above so that they are displayed in a tiled arrangement.
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Cited Art Landscape
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