Rear projection screen
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 19, 2000
Grant Date -
N/A
app pub date -
Jun 11, 1998
filing date -
Jun 11, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A rear projection screen assembly is described that includes a diffuser and a polarizer. The diffuser has particles dispersed within a binder. The particles and the binder have different refractive indices and are chosen such that the diffuser spreads light of an initial polarization state a cone of angles while substantially preserving the initial polarization state of the light. The diffuser also substantially depolarizing a portion of the light that is laterally scattered in the diffuser. The polarizer is disposed to receive light transmitted through the diffuser. The polarizer transmits light of the initial polarization state while absorbing a portion of the laterally scattered light that has a different polarization state. The resolution of the overall screen assembly may be made higher while also improving other characteristics of the screen assembly.
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Cited Art Landscape
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