New standard to certify variable refresh rate displays

1 min read

The US-based Video Electronics Standards Association (VESA) has announced a new certification program to certify variable refresh rate (VRR) displays for judder, dropped frames, and flicker.

VESA, the US standards agency for computer displays, said the new certification program will make it easier for consumers to choose a suitable VRR display.

VRR technology lets displays change refresh rates on the fly. It is particularly useful in gaming where the display's refresh rate can be synced with game's output, eliminating issues such as screen tearing.

Under the new program, known as Adaptive-Sync Display Compliance Test Specification, VRR displays will be put through a series of tests to examine the raw performance of a monitor's VRR technology.

The new standard will join other VESA standards, including Displayport, display mount, and the DisplayHDR certifications.

Under the program, there will be two tiers with two respective logos that manufacturers can use if their device achieves certification.

The first certification is AdaptiveSync, and is mainly designed for gaming monitors. It requires displays to have a minimum refresh rate of up to 60Hz and a maximum of at least 144Hz. The logo will feature the maximum refresh rate supported by the display.

The standard also tests displays for flicker, dropped frames, judder, and gray-to-gray (G2G) response times, which must be below 5ms.

The second specification, MediaSync, focuses on VRR operation for media playback and content creation and requires a relatively-narrow refresh rate range of at least 48-60Hz. It will also require tests for flicker, overshoot, undershoot, and judder.