06-27-2014 01:58 PM
Thank you very much. You really helped me.
06-27-2014 02:06 PM
While many displays have 60 Hz refresh rates, other rates are in use. For example Apple does not even define the update rate on iMacs using DisplayPort technology. Regardless of the rate you will not be able to synchronize exactly with the display unless you want to dig down into the interface signals.
The OS may not always immediately update the screen when new data is sent.
You should plan to do some careful testing and calibration to assure that the you get the display patterns that you want. The simplest test might use a photodiode and an oscilloscope.
Lynn