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Creative & Custom LED Displays Buyers often mix up HDR400 and HDR10. HDR400 is an entry DisplayHDR brightness tier (~400 nits). HDR10 is a content/format standard. SDR is the older limited dynamic-range baseline. For LED walls, ask for calibrated peak nits and bit-depth — not TV marketing badges. See LED video walls.
- HDR400 ≈ entry DisplayHDR (about 400-nit class), not “full HDR”.
- HDR10 is a format (metadata + 10-bit colour pipeline), not a brightness certificate.
- SDR is standard dynamic range — still the default for many signal chains.
- LED projects: ask for calibrated nits, bit-depth, and processor HDR support — not a TV sticker.
SDR Baseline
SDR (standard dynamic range) is the older limited range most broadcast and office content still uses. It is not “bad” — it is the default signal many processors still ingest cleanly.
What HDR400 Means
HDR400 is an entry tier in the VESA DisplayHDR program — roughly a ~400-nit class certification for monitors/TVs. It signals “HDR-capable at the low end,” not cinema-grade peak brightness. Calling HDR400 “full HDR” oversells it.
What HDR10 Means
HDR10 is a widely used HDR format: static metadata plus a 10-bit colour pipeline. It does not by itself guarantee a brightness tier. A display can claim HDR10 support at very different real-world nit levels.
Side-by-Side
| Term | Type | Takeaway |
|---|---|---|
| SDR | Dynamic range baseline | Still the workhorse signal |
| HDR400 | DisplayHDR entry tier | ~400-nit class badge |
| HDR10 | HDR format | Metadata + 10-bit path |
LED Wall Spec Notes
For commercial LED, ask for calibrated nit targets, bit-depth, and whether the processor/HDR pipeline matches your sources — not a consumer DisplayHDR sticker. Start at LED Video Wall.
Questions about LED walls, pitch, or a project brief? Send the room size and closest viewing distance — an engineer will reply with a workable spec path.
