Combining strobing (ULMB/LightBoost) with variable refresh (GSYNC/FreeSync)

Combining strobing (ULMB/LightBoost) with variable refresh (GSYNC/FreeSync)

There is research by Mark Rejhon back in year 2013 about eliminating motion blur during variable refresh rates (aka LightBoost + GSYNC simultaneously).

NVIDIA has published a new patent on combining GSYNC and ULMB.

Also, the Dell S2716DG has a “bonus bug” that simultaneously enables ULMB and GSYNC. This unintended mode does flicker badly at low frame rates, but it reveals high-quality blur reduction during variable refresh rate operation, especially at higher frame rates.

Plus, Marc Repnow of Display Corner has made available a new strobing algorithm that could cheaply greatly reduce flicker at low frame rates.

To discuss, join this Blur Busters Forum Thread:
Re: ULMB(lightboost) & G-sync? [What are technical challenges]



Peer-reviewed conference paper on Blur Busters invention

Peer-reviewed conference paper on Blur Busters invention

The photographs on many Blur Busters page (LCD Motion Artifacts, LCD Overdrive Artifacts, 60Hz vs 120Hz vs LightBoost, etc) were captured using a pursuit camera using the pursuit camera track on TestUFO.

This Blur Busters invention now is a peer-reviewed paper on ResearchGate. It is co-authored with NOKIA, Keltek and NIST.gov.

This Blur Busters testing technique has been adopted by several display reviewers, including PCMonitors.info, HDTVtest.co.uk, TFTCentral.co.uk, RTings.com, HDTVpolska.com, and Sweclockers.com.