Color LCD projector with micro display light engine
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United States of America Patent
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-
Nov 16, 2004
Grant Date -
N/A
app pub date -
Jun 5, 2002
filing date -
Jun 5, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A light engine for an LCD projector is disclosed. More particularly, a liquid crystal display projector including a light source emitting a light beam, a light engine, and a projection lens is disclosed. The light engine includes a polarizing beam splitter for receiving the light beam from the light source. The polarizing beam splitter orthogonally reflects a light beam containing multiple colors and passes a first light beam containing a single color. The light engine also includes a dichroic prism that receives the light beam containing multiple colors, reflects a second light beam containing a single color, and passes a third light beam containing a single color. Further, the light engine includes reflective liquid crystal displays associated with each of the first, second, and third light beams containing a single color for receiving, modulating, and reflecting modulated first, second, and third light beams containing a single color for recombination and projection through the projection lens.
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