HDR Is Not Just One Thing
High Dynamic Range (HDR) is one of the most impactful picture quality improvements in modern television — but it's not a single standard. HDR10, Dolby Vision, HDR10+, and HLG are all competing formats, and understanding the differences helps you get the most out of your display and content.
What HDR Actually Does
HDR expands the range between the darkest blacks and the brightest highlights a display can show simultaneously. The result is an image that looks closer to what your eyes see in the real world — stars visible in a night sky while a fire burns in the foreground, for example. Combined with a wider color gamut (WCG), HDR content looks richer, more three-dimensional, and more lifelike.
The Main HDR Formats Explained
HDR10 — The Baseline Standard
HDR10 is the most widely supported HDR format. It's an open standard, meaning any manufacturer can implement it for free. Key characteristics:
- Uses static metadata — a single set of brightness instructions applied to the entire film
- Supports up to 10,000 nits peak brightness (though most displays hit 400–1,000 nits in practice)
- Supported by virtually every 4K TV, projector, streaming platform, and Blu-ray disc
Verdict: The minimum you should accept for HDR content. Universal and reliable.
Dolby Vision — The Premium Experience
Dolby Vision is a proprietary format developed by Dolby Laboratories. It improves on HDR10 in meaningful ways:
- Dynamic metadata: Brightness and color instructions are adjusted scene-by-scene or even frame-by-frame
- Supports up to 12-bit color depth vs. HDR10's 10-bit
- Manufacturers pay a licensing fee to support it, but it's widely available on LG, Sony, TCL, and Hisense displays
- Widely supported on Netflix, Disney+, Apple TV+, and Apple TV 4K
Verdict: Noticeably better than HDR10 on a capable display. Worth seeking out if your TV supports it.
HDR10+ — Samsung's Alternative
HDR10+ is Samsung's answer to Dolby Vision — it adds dynamic metadata to the open HDR10 standard without licensing fees. It's supported on Samsung and Panasonic displays, and on Amazon Prime Video. However, its adoption remains more limited than Dolby Vision.
Verdict: Good, but less universally supported than its rivals.
HLG (Hybrid Log-Gamma) — For Broadcasting
HLG was developed jointly by the BBC and NHK for broadcast television and live content. Unlike the others, it doesn't require metadata and is backward compatible with standard dynamic range (SDR) displays. You'll encounter it on:
- Live sports broadcasts
- Over-the-air ATSC 3.0 (NextGen TV) broadcasts
- Some streaming platforms for live content
Verdict: Not relevant for most home viewing — it's a broadcast standard, not a home video format.
Format Comparison Table
| Format | Metadata Type | Color Depth | Best Use Case |
|---|---|---|---|
| HDR10 | Static | 10-bit | Universal compatibility |
| Dolby Vision | Dynamic | 12-bit | Best picture on premium displays |
| HDR10+ | Dynamic | 10-bit | Samsung ecosystem |
| HLG | None | 10-bit | Live broadcast / OTA TV |
What Should You Prioritize?
For most viewers, the priority should be: Dolby Vision first, HDR10 as a fallback. When buying a TV or streaming device, check for Dolby Vision support. When choosing between streaming platforms, know that Netflix, Disney+, and Apple TV+ lead on Dolby Vision content volume.
Remember: the display itself matters enormously. An OLED TV with HDR10 content often looks better than a low-end LCD claiming Dolby Vision support. Format is only part of the equation — display hardware is the other half.