The Video Electronics Standards Association VESA has published an open standard for front of screen (FOS) performance of variable refresh rate (VRR) displays.
VESA’s Adaptive-Sync Display Conformance Test Specification (Adaptive-Sync Display CTS) defines more than 50 comprehensive and rigorous testing criteria, automated test methodologies, and performance requirements for PC monitors and notebook displays that support the Adaptive-Sync protocol. do
The Adaptive-Sync Display CTS includes a two-tier Product Conformity Logo Program. AdaptiveSync displays support significantly higher refresh rates and lower latency for gaming, while MediaSync displays support all international broadcast video formats with a focus on jitter-free media playback.
With the VESA-certified AdaptiveSync Display and MediaSync Display logo programs, consumers can now easily compare the variable refresh rate performance of displays that support Adaptive-Sync before purchasing.
Adaptive-Sync Displays must pass both CTS and VESA DisplayPort conformance tests to display the VESA-certified Adaptive-Sync Display or MediaSync Display logo.
VESA Adaptive-Sync Display CTS measures refresh rate, flicker, gray-to-gray response time (including overshoot and undershoot limits to achieve high quality), video frame drop, and video frame rate jitter. It includes a total of over 50 automated display performance tests, including all key parameters.
All display products must be tested in the factory default or factory mode configuration according to the VESA Adaptive-Sync Display CTS, and are tested in a room temperature environment to test the display under real-world conditions. In order to receive VESA AdaptiveSync Display or MediaSync Display logo certification, it must also be tested and certified once morest VESA’s DisplayPort standard.
The VESA-certified Adaptive Sync display logo indicates performance by inserting the maximum achievable video frame rate number when adaptive-sync operation is tested with the display product’s factory default setting as the native resolution, while VESA focuses on display jitter. Certified MediaSync Display logos do not display these figures.