发明名称 |
Stereoscopic LCD shutter glass driver system |
摘要 |
The preferred embodiment a stereoscopic LCD shutter glass driver system requires only a total of 3 CMOS integrated circuit chips in order to convert horizontal and vertical sync signals into LCD shutter glass drive signals. A negative charge pump is used increase the LCD drive voltage thereby reducing 3D crosstalk in the image. The video signal input is shown with a passthrough connection intended for direct hook-up to a television or CRT monitor. A first flip flop detects vertical and horizontal sync and is used to drive the charge pump. A stable, predictable field ID signal is produced by the flip flop whose two complimentary outputs act as inputs to a second flip flop chip which produces the drive signals for the LCD shutter glasses. A third flip flop produces a LCD "common" signal that is sent to both LCD shutters. The second flip flop produces a drive signal for each LCD shutter. A field swap between the two shutters is implemented with a switch located at the output of the third flip flop.
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申请公布号 |
US6529175(B2) |
申请公布日期 |
2003.03.04 |
申请号 |
US20010770539 |
申请日期 |
2001.01.25 |
申请人 |
VREX, INC. |
发明人 |
TSERKOVNYUK WALTER;DIVELBISS ADAM W. |
分类号 |
G09G1/06;H04N13/00;H04N15/00;(IPC1-7):G09G5/00;H04N5/08 |
主分类号 |
G09G1/06 |
代理机构 |
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地址 |
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