VESA Stereo

VESA StereoType|  stereoscopic shutter glasses connector

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Production history
Designer|  VESA
General specifications
Hot pluggable|  Yes
External|  Yes
Pins|  3
Connector|  Mini-DIN
Electrical
Signal|  +5 V
Max. voltage|  5 V
Max. current|  750 mA
Data
Data signal|  Yes
Pin out
Pins from left to right 2,3,1[1]
Pin 1|  5v(p)|  5v (750ma)
Pin 2|  GND|  Ground
Pin 3|  Sync|  Stereo Sync (TTL)[1][2]

VESA Stereo is a liquid crystal shutter glasses interface standard by the Video Electronics Standards Association (VESA) for stereoscopic 3D displays. The system does not drive the glasses directly, instead providing a basic signal and power to be used by other electronics either inside the glasses or in an external unit.

The VESA Stereo connector has been extensively used in 3D accelerators as well as 3D DLP TVs.

## Technical Details

The stereo-sync signal changes when the system is changing between showing images for the right eye and left eye. The signal is a TTL signal where the "high" state indicates the left eye should be exposed.[2] No special software is necessarily needed to create the stereo-sync signal as it can be created from the Vertical synchronization signal being fed to the monitor (if it is using RGB component video).[3]

## References

1. ↑ 1.0 1.1 Bungert, Christoph. "VESA miniDIN-3 connector for shutterglasses". http://www.stereo3d.com/vesa3.htm.
2. ↑ 2.0 2.1 "Connecting stereo glasses to SGI workstations". http://www.roosmcd.dds.nl/oldsite/.
3. ↑ "VGA to 3-pin VESA Stereo Adapter". http://www.int03.co.uk/crema/hardware/stereo/.

## External links

* VESA homepage
* Connector and Signal Standards for Stereoscopic Display Hardware

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