Apparatus for controlling LCD shutter glasses
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United States of America Patent
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-
Apr 20, 2004
Grant Date -
N/A
app pub date -
Oct 13, 1999
filing date -
Mar 16, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for controlling liquid-crystal-display (LCD) shutter glasses for making the right and left LCD-type shutter of the LCD shutter glasses transparent alternately. An observer who wears the LCD shutter glasses controlled by the apparatus will experience the three-dimensional effect if the alternately transparent speed of the right and left LCD-type shutter is matched with the vertical synchronization signal. The apparatus for controlling liquid-crystal-display (LCD) shutter glasses comprises a first means, a second means, and a third means. The first means is responsive to a vertical synchronization signal and generates a light-passing enable signal. The second means could generate a first voltage signal. The third means is responsive to the light-passing enable signal and the first voltage signal to generate a first and a second controlling signals to control the left and the right LCD-type shutters such that a three dimension image effect is observed by the observer.
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