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VESA Rolls Out DisplayHDR 1.2 Spec: Adding Color Accuracy, Black Crush, & Wide-Color Gamuts For All
by Ryan Smith on May 7, 2024 12:00 PM EST VESA this morning is taking the wraps off of the next iteration of its DisplayHDR monitor certification standard, DisplayHDR 1.2. Designed to raise the bar on display quality, the updated DisplayHDR conformance test suite imposes new luminance, color gamut, and color accuracy requirements that extend across the entire spectrum of DisplayHDR tiers – including the entry-level DisplayHDR 400 tier.
The biggest change here is that while DisplayHDR maintains the 8-bit panel requirement of its predecessor, the underlying driver IC now needs to support 10-bit output via 8+2bit with frame rate control (FRC). VESA DisplayHDR Requirements (Summary)400 v1.1400 v.1.2500 v1.2600 v1.2 Min Luminance (10% Center) 400400500600 sRGB Gamut Coverage 95%99%99%99% DCI-P3 Gamut Coverage N/A90%95%95% Panel Bit Depth 8-bit Display IC Bit Depth 8-bit8-bit + 2-bit FRC HDR Color Accuracy N/ADelta-TP < 8 Expected Backlighting GlobalGlobal1D Zone Edge-LitTo be sure, even DisplayHDR 400 displays were already required to be able to ingest a 10-bit per channel input, but at minimum spec, they weren’t really doing much with that higher precision information up until now. The actual metric being used is a variant on VESA’s Delta-ITP method, which they call Delta-TP – the change being that it removes the luminance component in the calculation since this is a color accuracy test.
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