Technology glossary

VESA DisplayHDR True Black

VESA’s HDR certification tier for self-emissive displays such as OLED, built around very deep black levels.

True Black tiers require a centre black level of at most 0.0005 cd/m², compared with 0.4 cd/m² for standard DisplayHDR 400. The rise from black to peak must complete within 2 frames.

The number in the tier is peak luminance on a 10% patch: 400 cd/m² for True Black 400. Full-screen white tests need only 250 cd/m², so True Black displays can be noticeably dimmer on large bright areas than on small highlights. True Black 400 also requires 99% BT.709 and 90% DCI-P3 coverage and 10-bit signal input.

Devices using this technology

ASUS ROG Swift OLED PG32UCWM — ROG Swift OLED PG32UCWM in black, front view with stand.

Monitors · 2026

ASUS ROG Swift OLED PG32UCWM

An OLED monitor offering 4K detail at 240 Hz or competitive play at 480 Hz at a lower resolution. Its RGB-stripe subpixels aim to reduce coloured edges around text. The glossy surface and OLED protection features matter when choosing a work environment.

ASUS ROG Zephyrus G14 (2026) GU405 — ASUS ROG Zephyrus G14 (2026) GU405 in Platinum White. Image from the manufacturer’s model page; an Eclipse Grey color also exists, and the screen content is an example.

Laptops · 2026

ASUS ROG Zephyrus G14 (2026) GU405

A 14-inch gaming and content-creation laptop with a discrete NVIDIA graphics card. This model code comes with Windows 11 Home, 16 GB of memory, a 1 TB SSD and an RTX 5070 Ti Laptop GPU. The memory is soldered and cannot be expanded. In reviews, the GPU’s full power comes in Turbo or Manual mode, where fan noise was measured as high.

Alienware AW3226Q — Nova Black Alienware AW3226Q; manufacturer front three-quarter image with a game on screen.

Monitors · 2026

Alienware AW3226Q

A flat 4K OLED gaming monitor. RGB-stripe subpixels aim to give text cleaner edges; features include a 165 Hz refresh rate, USB hub and headphone output. USB-C cannot receive video from a laptop.

Dell UltraSharp U3226Q — Front view of the black U3226Q from the manufacturer’s gallery.

Monitors · 2026

Dell UltraSharp U3226Q

U3226Q is a 4K QD-OLED monitor for colour work. Its retractable sensor can calibrate the display, while Thunderbolt and Ethernet make it a laptop docking station. There are no built-in speakers.

LG UltraGear evo GX9 39GX950B-B — Front view of the black 39GX950B from the LG UK model page; the on-screen text is promotional artwork.

Monitors · 2026

LG UltraGear evo GX9 39GX950B-B

The 39GX950B-B is a curved 38.86-inch OLED gaming monitor with a 5120 × 2160 panel. It runs 5K2K at 165 Hz and can switch to 330 Hz at 2560 × 1080 with Dual-Mode. Its USB-C input carries video, data and up to 90 W of power; there is no built-in KVM.

MSI MPG 322UR QD-OLED X24 — MSI black MPG 322UR QD-OLED X24 monitor; angled front view.

Monitors · 2026

MSI MPG 322UR QD-OLED X24

A flat QD-OLED monitor combining 4K resolution with 240 Hz. USB-C carries video and power, while KVM lets two computers share a keyboard and mouse. OLED protection features do not eliminate burn-in risk.

MSI Raider 16 Max HX — Lid view of the Raider 16 Max HX with model code B2WJ-029HK (Core Black, "RAIDER MAX" lettering); image from the MSI Hong Kong store, showing no display or ports.

Laptops · 2026

MSI Raider 16 Max HX

The 16-inch Raider 16 Max HX is a gaming and creative laptop built around up to 300 W of combined CPU and GPU power. This version pairs an RTX 5090 Laptop GPU with 24 GB of GDDR7, a 240 Hz OLED display and a 400 W adapter. RAM and SSD sit in slots, and a second M.2 slot is left empty. At about 2.6 kg plus the 400 W adapter it is not easy to carry; the same family also includes IPS and smaller-GPU versions.

Monitors · 2025

Samsung Odyssey OLED G6 G60SF (27-inch)

The Odyssey OLED G6 G60SF is Samsung's 27-inch QHD QD-OLED gaming monitor, announced as the first OLED monitor to reach 500 Hz. It has DisplayHDR True Black 500, an anti-reflective matte film, a fully adjustable stand and Safeguard+ features against OLED burn-in. Tests confirm high colour accuracy and HDR brightness; there is no USB-C and no speaker.

Monitors · 2025

ASUS ROG Strix OLED XG27UCDMG

The ROG Strix OLED XG27UCDMG is ASUS's 27-inch-class 4K 240 Hz QD-OLED gaming monitor. It offers 1000-nit peak HDR, DisplayHDR 400 True Black certification, two HDMI 2.1 ports, 90 W USB-C and KVM, with a three-year warranty that covers burn-in. It lacks DisplayPort 2.1, and the glossy surface raises blacks in a lit room.

Monitors · 2025

ASUS ROG Swift OLED PG27UCDM

The ROG Swift OLED PG27UCDM is ASUS’s 26.5-inch 4K (3840 × 2160) 240 Hz QD-OLED gaming monitor: 0.03 ms response time, DisplayHDR 400 True Black, Dolby Vision, DisplayPort 2.1, two HDMI 2.1 ports and USB-C with 90 W power delivery. The high pixel density makes small text sharp; against burn-in there is ASUS OLED Care and a 3-year warranty that also covers burn-in. Owners praise the colour and contrast and mention purplish blacks in a sunny room and shipping with old firmware. In one firmware version DSC could not be turned off; this was fixed in the next version.

Monitors · 2025

LG UltraGear 27GX790A-B

LG's 27-inch QHD OLED monitor for competitive gaming. It offers 480 Hz refresh, 0.03 ms GtG, DisplayHDR True Black 400 and DisplayPort 2.1 plus HDMI 2.1 inputs. Tests praise motion clarity and colour accuracy; SDR brightness is limited, the gamut is narrower than QD-OLED and there is no USB-C or speakers.

Monitors · 2025

MSI MPG 271QR QD-OLED X50

This flat QD-OLED monitor targets 500 Hz at 2560 × 1440. Alongside high-frame-rate gaming it offers USB-C video, a USB hub and KVM. Peak HDR brightness applies to small bright areas rather than the whole screen. OLED maintenance features are part of everyday use.

Monitors · 2024

ASUS ROG Swift OLED PG27AQDP

The ROG Swift OLED PG27AQDP is one of ASUS's first OLED gaming monitors to reach 480 Hz at 1440p: a 26.5-inch WOLED panel, 0.03 ms GtG, DisplayHDR 400 True Black and a fanless heatsink. It has two HDMI 2.1 ports and DisplayPort 1.4 with DSC; the warranty is 3 years including burn-in. Reviews rate the motion clarity and response very highly; desktop brightness and VRR behaviour in HDR are points to watch.

Monitors · 2024

MSI MPG 321URX QD-OLED

The MPG 321URX QD-OLED is MSI’s 31.5-inch 4K 240 Hz QD-OLED gaming monitor. It offers DisplayHDR True Black 400, 99% DCI-P3 coverage, G-SYNC Compatible and FreeSync Premium Pro, two HDMI 2.1 ports and a USB-C input with 90 W charging, on a height-adjustable stand; MSI also includes panel burn-in in its three-year warranty. Reviews praise contrast, HDR and motion clarity; the semi-glossy surface lifting blacks under direct light and the lack of Dolby Vision are listed as drawbacks.

Sources

  1. VESA DisplayHDR: summary of CTS 1.1 performance criteria