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OLED displays also have very low latency as long as there is no scaler in the way. The Oculus Rift CV1 uses them and has a motion-to-photons latency of 9 ms[0], which includes not just the display but the entire stack.

https://www.reddit.com/r/oculus/comments/43p3a6/does_anybody...

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Yeah, scalers and OSDs are going to be the hardest things to give up.

I will admit ... it's painful using my ZR30w with no scaler. I can't connect my PSP's component out to it, I can't hook up my Wii U, I can't connect my XRGB Mini, my Raspberry Pi, etc ... because none of them output at 2560x1600.

Even worse, the DisplayPort connector stopped working on it (hooray, $1300 monitor quality!!), so all I have is one DVI port left, which can't even output at the 30-bit color depth which was a big part of why I wanted this monitor :(

The ironic thing about OSDs causing input lag is that the very systems we emulate prove that video overlays are trivial to implement without buffering.

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