发明名称 |
PROJECTION DISPLAY WITH SCREEN COMPENSATION |
摘要 |
A control system for a projection display includes means for compensating for spatial variations or artifacts in light scattered by a projection screen. According to embodiments, a sensor produces a signal corresponding to the amount of light scattered to a viewer on a region-by-region or pixel-by-pixel basis. A screen map is created from the sensor signal. Input display data is convolved with the screen map to produce a compensated display signal. The compensated display signal drives a projection display engine. The projected light driven by the compensated display signal convolves with the display screen to produce a viewable image having reduced artifacts. According to one embodiment, a relatively fixed screen map is produced during a calibration routine. According to another embodiment the screen map is updated dynamically during a display session.
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申请公布号 |
WO2007062154(A3) |
申请公布日期 |
2009.06.04 |
申请号 |
WO2006US45266 |
申请日期 |
2006.11.21 |
申请人 |
MICROVISION, INC.;WIKLOF, CHRISTOPHER, A. |
发明人 |
WIKLOF, CHRISTOPHER, A. |
分类号 |
G09G5/28;G09G3/36;H04N3/14 |
主分类号 |
G09G5/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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