Summary of DisplayHDR Specs under CTS 1.1
The table below is a summary of the specifications for the VESA DisplayHDR and DisplayHDR True Black standards as they are updated by CTS 1.1 released on September 4th, 2019. A complete description of these specifications and the VESA certification test criteria are available in DisplayHDR CTS v1.1 which can be downloaded here, along with other free VESA standards.
DisplayHDR Performance Tier | ||||||||
TRUE BLACK | ||||||||
400 | 500 | 600 | 1000 | 1400 | 400 | 500 | 600 | |
MINIMUM LUMINANCE LEVEL | ||||||||
10% Center Patch Test – Minimum Luminance Level (cd/m2) | 400 | 500 | 600 | 1000 | 1400 | 400 | 500 | 600 |
Full-screen Flash Test – Minimum Luminance Level (cd/m2) | 400 | 500 | 600 | 1000 | 1400 | 250 | 300 | 350 |
Full-screen Long-duration Test – Minimum Luminance Level (cd/m2) | 320 | 320 | 350 | 600 | 900 | 250 | 300 | 350 |
BLACK LEVEL | ||||||||
Dual Corner Box Test – Screen Center, Maximum Luminance Level (cd/m2) | 0.4 | 0.1 | 0.1 | 0.05 | 0.02 | 0.0005 | 0.0005 | 0.0005 |
Dual Corner Box Test, Both White Corners, Minimum Luminance Level (cd/m2) | 300 | 375 | 450 | 750 | 1050 | 300 | 375 | 450 |
ACTIVE DIMMING/CHECKERBOARD TEST | ||||||||
Active Dimming – Ratio of maximum white to black of a 50cd/m2 checkerboard (stops) | 11 | 11.6 | 12 | 13 | 13.5 | N/A | N/A | N/A |
Active Dimming – Ratio of maximum white to black of a 5cd/m2 checkerboard (stops) | 12 | 12.6 | 13 | 14 | 14.5 | N/A | N/A | N/A |
Checkerboard – Max Black Level at Full Luminance (True Black only) | N/A | N/A | N/A | N/A | N/A | 0.0005cd/m2 | ||
COLOR GAMUT AND MINIMUM LUMINANCE SPECIFICATIONS | ||||||||
ITU-R BT.709 Coverage for Both 10% and Full-screen Color Patches | 95% | 99% | 99% | 99% | 99% | 99% | 99% | 99% |
DCI-P3 CIE D65e Coverage for Both 10% and Full-screen Color Patches | N/A | 90% | 90% | 90% | 95% | 90% | 90% | 90% |
Combined Color Luminance (Lr + Lg + Lb) 10% Color Patch Test (cd/m2) | 400 | 500 | 600 | 1000 | 1400 | 400 | 500 | 600 |
Combined Color Luminance (Lr + Lg + Lb) Full-screen Color Test (cd/m2) | 320 | 320 | 350 | 600 | 900 | 250 | 300 | 350 |
MINIMUM BIT-DEPTH SPECIFICATIONS | ||||||||
10-bit Video Signal, per Channel | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
Minimum Driver-IC Bit Depth (+2b Dithering FRC) | 8b | 8b+2 | 8b+2 | 8b+2 | 8b+2 | 8b+2 | 8b+2 | 8b+2 |
Minimum 8-bit Digital-to-analog Conversion | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
Backlight Control 8-bit Accuracy | ✔ | ✔ | ✔ | ✔ | ✔ | N/A | N/A | N/A |
DISPLAYHDR RISE-TIME SPECIFICATIONS | ||||||||
Maximum Number of Frames for Rise from Black to Maximum Luminance | 8 | 8 | 8 | 8 | 8 | 2 | 2 | 2 |
LUMINANCE AND WHITE POINT ACCURACY | ||||||||
Permitted Maximum Delta-ITP error for tests at 5 and 15cd/m2 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
Permitted Maximum Delta-ITP error for tests at 50, 100, and 200cd/m2 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
Permitted Maximum Delta-ITP error for tests at 50% of Tier Level maximum | N/A | 15 | 15 | 15 | 15 | N/A | 15 | 15 |