Home Update VESA Rolls Out DisplayHDR 1.2 Spec: Adding Color Accuracy,…

VESA Rolls Out DisplayHDR 1.2 Spec: Adding Color Accuracy,…

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VESA Rolls Out DisplayHDR 1.2 Spec: Adding Color Accuracy,...


VESA this morning is taking the wraps off of the following iteration of its DisplayHDR monitor certification commonplace, DisplayHDR 1.2. Designed to lift the bar on show high quality, the up to date DisplayHDR conformance check suite imposes new luminance, coloration gamut, and coloration accuracy necessities that reach throughout your complete spectrum of DisplayHDR tiers – together with the entry-level DisplayHDR 400 tier. With distributors in a position to start certifying shows for the brand new commonplace instantly, the show expertise group is aiming to deal with the developments within the show expertise market during the last a number of years, whereas engaging show producers to utilize them to ship higher desktop and laptop computer shows than earlier than.

Altogether, the DisplayHDR 1.2 is well the most important replace to the usual because it launched in 2017, and in lots of respects the primary important overhaul to the usual since that point as effectively. DisplayHDR 1.2 doesn’t add any new tiers to the usual (e.g. 1400), as an alternative it’s all about growing and/or tightening the specs at every of its tier ranges. In quick, the VESA is elevating the bar for shows to succeed in DisplayHDR compliance, requiring a better stage of efficiency and testing for extra nook circumstances that journey up lesser shows.

All of those adjustments are coming, in flip, after over half a decade of expertise enhancements within the show area. Whereas even the unique DisplayHDR 400 necessities represented a modestly premium show in 2017, these days even sub-$200 shows can hit these comparatively free necessities as panels and backlighting options have improved. And even on the high-end of issues, full array native dimming (FALD) shows have gone from a whole bunch of zones to hundreds. All of which has lastly pushed VESA’s member corporations into permitting increased requirements going ahead.

DisplayHDR 400: 8-bit w/FRC & DCI-P3 Panels Now Required

The up to date specs contact each tier of the DisplayHDR commonplace. However the most important adjustments are going to be felt at DisplayHDR 400, the entry-level tier of the usual. Essentially a compromise between what mainstream, mass-market show expertise is able to whereas introducing some fundamental necessities/boundaries for displaying HDR content material, DisplayHDR 400 specifically has caught out as a technology behind the opposite requirements since its introduction. And whereas it should all the time stay the bottom tier of the specification, DisplayHDR 1.2 is eliminating a number of the distinctive allowances at this tier, bringing it nearer to its higher-quality siblings.

The greatest change right here is that whereas DisplayHDR maintains the 8-bit panel requirement of its predecessor, the underlying driver IC now must assist 10-bit output through body price management (FRC). Otherwise often known as temporal dithering, 2-bit FRC is what number of shows in the marketplace show 10-bit content material as we speak, combing an 8-bit panel with dithering to interpolate the lacking in-between colours. Previously, DisplayHDR 400 was the one tier to not mandate FRC assist. Now all tiers, from 400 to 1400, would require at minimal an 8-bit panel with simulated 10-bit (8b+2b) output through FRC.

VESA DisplayHDR Requirements (Summary)
  400 v1.1 400 v.1.2 500 v1.2 600 v1.2 1000 v1.2
Min Luminance
(10% APL, nits)
400 400 500 600 1000
Max Luminance, Black (nits) 0.4 0.4 0.1 0.1 0.05
Static Contrast Ratio N/A 1300:1 7000:1 8000:1 30000:1
sRGB Gamut Coverage 95% 99%
DCI-P3 Gamut Coverage N/A 90% 95%
Panel Bit Depth 8-bit 8-bit
Display IC Bit Depth 8-bit 8-bit + 2-bit FRC
HDR Color Accuracy N/A Delta-TP < 8 Delta-TP < 6
Expected Backlighting Global Global 1D/1.5D Zone Edge-Lit



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