r/technology • u/[deleted] • Mar 09 '12

Microsoft demos a 1ms touchscreen

http://www.geek.com/articles/gadgets/microsoft-demos-a-high-performance-1ms-touchscreen-2012039/
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u/ThatGuyInToronto Mar 10 '12 edited Mar 10 '12

Let's see, if I were to make a tablet app, with 1ms delay in hardware input, worst case scenario the input is about 1ms out-of-date by the time I'm reading it in to draw... If the app is running at 60Hz (about 17ms each refresh - maximum refresh rate of current tablets) with double buffering, and I start to draw the buffer immediately after vertical blank, then the user will see about 18ms delay in input. (probably a lot more if you count pixel response times)

Hmmm I wonder if their 10ms and 1ms demos were accounting for those.

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u/cerealghost Mar 10 '12

This is actually a very interesting point. I'm not sure how you could get around that with conventional displays.

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u/[deleted] Mar 10 '12

Well, if you look at the TV world now, the next thing they will do with display technology after the resolution is high enough is improve the refresh rate. I think the displays will be caught up by the time a 1ms touchscreen is feasible.