Author Archive: Mark Rejhon

About Mark Rejhon

Also known as Chief Blur Buster. Founder of Blur Busters. Inventor of TestUFO. Read more about him on the About Mark page.

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Adding Variable Refresh Rate Support to HTML 5.2

Posted May 11, 2017 by Mark Rejhon in: Web Browsers

Variable refresh rate technologies are getting standardized as VESA Adaptive-Sync, HDMI 2.1 VRR, FreeSync, in addition to G-SYNC. Microsoft’s Scorpio Project (the next XBox) is already planned to support variable refresh rate. Mark of Blur Busters is now an Invited Expert in...

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Strobe Crosstalk: Double-Image Effect

Posted May 4, 2017 by Mark Rejhon in: Display Motion Blur

Strobe crosstalk are double-image-effects during Motion Blur Reduction on gaming displays. We explain why this happens, and how this can be...

Strobe Crosstalk: Blur Reduction Double-Images

Posted May 3, 2017 by Mark Rejhon Area 51: Display Research

Strobe crosstalk are double-image-effects during Motion Blur Reduction on gaming displays. We explain why this happens, and how this can be...

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This is the vertical blanking interval. It allows displays to synchronize to the next refresh cycle. We used to see it on analog TVs in 1930s through 1980s when the picture rolled during lost sync. Known as vertical synchronization, aka VSYNC (it is also padded with Front Porch and Back Porch) This hidden sync signal still exists in digital signals, DVI, HDMI, DisplayPort, and is seen on PCs and Macs via Custom Resolution Utilities.

Photo of an analog VSYNC signal

Posted May 2, 2017 by Mark Rejhon in: FreeSync

Games and graphics card often have a VSYNC ON or VSYNC OFF setting. But have you ever wondered where VSYNC comes from? It stands for Vertical Synchronization. From the video signal perspective, it is a signal to the display to begin...

Blur Busters Working On Changes To HTML 5.2

Posted May 1, 2017 by Mark Rejhon Industry Standards

Mark Rejhon – aka Chief Blur Buster – is now W3C Invited Expert As creator of Blur Busters as well as TestUFO, I also have industry standards writing experience (XMPP extension XEP-0301) and a peer reviewed conference paper (display pursuit camera...

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New 2017 Strobe Utility Supports Zowie Monitors

Posted Apr 29, 2017 by Mark Rejhon in: Display Motion Blur

Blur Busters Strobe Utility is now Zowie compatible! In addition to several BenQ Z-Series monitors, the Zowie L2411, XL2420 and XL2720 are now supported....

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Engineering for High Quality Display Motion Blur Reduction

Posted Apr 21, 2017 by Mark Rejhon in: Area 51: Display Research Display Motion Blur

Some gaming monitor manufacturers are better than others in doing Motion Blur Reduction (e.g. LightBoost, ULMB, MOTION240, DyAC). We explain why this is a difficult engineering...

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High Speed Video of Strobe Backlight

Posted Apr 21, 2017 by Mark Rejhon in: Area 51: Display Research Display Motion Blur

Strobe backlights such as ULMB and LightBoost eliminate motion blur on LCD displays. Several 120 Hz+ monitors now have a refresh-synchronized strobe backlight feature (e.g. LightBoost, ULMB, etc) that can be enabled, to allow CRT crystal clear motion on LCD. This high-speed...

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Microsoft EDGE browser still stuck at 60Hz in W3C violation

Posted Apr 20, 2017 by Mark Rejhon in: Web Browsers

Unfortunately, the Microsoft EDGE web browser still does not support 120Hz+ on over 100+ gaming monitors. Chrome & FireFox teams purchased 120Hz+ monitors and fixed their browsers years ago. Why hasn't...

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Dell 30″ OLED 4K monitor has motion blur reducing strobe mode

Posted Apr 19, 2017 by Mark Rejhon in: Display Motion Blur OLED

The Dell U3017Q OLED monitor, while a 60Hz display, apparently has an optional motion blur reducing mode via a pulsed rolling-scan. A possible precursor to future Holy Grail gaming/eSports...

Thumbnail: Mark Rejhon at CES 2015

About Founder Mark Rejhon

Posted Apr 15, 2017 by Mark Rejhon Blur Busters Company Information

Behind the UFO, Blur Busters founder Mark Rejhon is a display researcher who has worked in the home theater industry at various times in the past, including Stewart Filmscreen, AVSCIENCE Forum, Key Digital, TAW, and several other companies. He was...

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Updated List of FreeSync Monitors: April 2017 Edition

Posted Apr 11, 2017 by Mark Rejhon in: AMD FreeSync

And now for AMD FreeSync: The Official List of FreeSync Monitors has now been published! There are now nearly 100 models on the market that is compatible with FreeSync! Questions? Join the Blur Busters...

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