VESA DSC logo explained: DP2.1 DP54 bandwidth, 4K165 HDR workflows, compression limit, ClearMR 21000

Posted by – January 17, 2026
Category: Exclusive videos

VESA uses certification programs as a shorthand for what a display pipeline can really sustain, and this booth walk-through focuses on how those logos map to measurable signal integrity and motion performance. The headline demo is an LG QHD OLED gaming monitor certified for ClearMR 21000 (top tier motion blur rating), AdaptiveSync Display, and DisplayHDR True Black 500, running at 540 Hz over DisplayPort 2.1 using UHBR13.5 (54 Gb/s) with a DP54 cable. https://www.vesa.org/

ClearMR is essentially VESA’s way of normalizing blur metrics across panels and refresh regimes, so “21000” isn’t marketing fluff but a tier that implies very low perceived motion smear when the whole chain—panel response, overdrive, and scanout timing—behaves. On top of 540 Hz at QHD, the monitor also exposes a dual-mode toggle: it can drop resolution and push refresh up to 720 Hz, which is interesting for esports latency budgets even if it falls short of VESA’s Dual Mode certification threshold because that program requires at least 1080p.

The conversation then shifts from desktop gaming to mobile HDR, showing OLED tandem panels in laptops from LG and Lenovo. Tandem OLED stacks two emissive layers to raise peak luminance while keeping OLED black levels, which is how these systems hit VESA DisplayHDR True Black 1000. VESA mentions more than 100 True Black 1000 laptop models certified, with some families peaking around 1,600 nits—numbers that are easier to appreciate in person at CES Las Vegas 2026.

A recurring technical theme is Display Stream Compression (DSC): it has existed for years as an optional feature in older DisplayPort generations, but it’s a mandatory capability in DisplayPort 2.1 and now has a dedicated VESA logo program to indicate a validated implementation. DSC is typically visually lossless and is what makes extreme pixel rates feasible—think high-refresh QHD OLED, multi-display MST docking, or pushing beyond raw link budgets like 54 Gb/s UHBR13.5 and up to 80 Gb/s UHBR20.

That DSC logo idea also shows up in TVs: LG’s newly announced C6 is highlighted because it targets 4K at 165 Hz with HDR, a case where compression is effectively required to move enough pixels even when the physical input is HDMI. VESA’s point is less about inventing a new codec and more about making interoperability predictable by certifying the DSC behavior, while keeping the standard itself royalty-free for members (with certification handled via test house cost) rather than per-unit licensing fee.

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