Patent ID: 6529175
Filing Date: 2003-03-04
Classification: G09G,H04N

Abstract:
A stereoscopic LCD shutter glass driver system comprising:a sync separator coupled to a video input; a first output and a second output of said sync separator coupled to a first flip flop; a third output of said sync separator coupled to a negative charge pump; a first output of said first flip flop coupled to a second flip flop and a second output of said first flip flop coupled to a third flip flop; a first output of said second flip flop coupled to a first terminal of a first LCD shutter glass, a second output of said second flip flop coupled to a first terminal of a second LCD shutter glass; a first output of said third flip flop coupled to a first input terminal of a switch and a second output of said third flip flop coupled to a second input terminal of said switch; an output of said switch is coupled to a second terminal of said first LCD shutter glass and said second LCD shutter glass, wherein said system produces said system generates a switching pulse train to each LCD shutter glass such that each LCD shutter glass is open every other field and the two shutter glasses are open and closed during opposite fields.