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Observer-tracking directional display and observer-tracking illumination system
Observer-tracking directional display and observer-tracking illumination system
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机译：观察者跟踪定向显示和观察者跟踪照明系统
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摘要
Observer tracking is provided in an autostereoscopic 3D display, for instance of the type comprising an LCD panel 2 behind a parallax barrier 3. An infrared sensor such as a position sensitive detector 25 is provided on the LCD panel 2. The parallax barrier 3 extends over the detector 25 so as to form an image of the observer or of a reflective target 22 worn by the observer on the detector 25. The parallax barrier 3 is moved so as to keep the image at a constant position on the detector 25. The viewing zones thus track the observer. IMAGE
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