HDR (High Dynamic Range)** is a technology that provides a wider **dynamic range** in an image compared to standard formats (SDR). It allows for brighter highlights, deeper shadows, and more vibrant colors, making the picture incredibly realistic and detailed.
How does HDR work?
Enhanced Brightness: HDR content can utilize peak brightness levels of up to 1000–4000 nits (compared to ~100–300 nits for SDR).
Wider Color Gamut: It supports 10-bit color (over 1 billion shades) versus 8-bit color (16.7 million shades) in SDR.
Local Dimming: The screen’s backlight adapts to the scene, enhancing the contrast between light and dark areas.
Popular HDR Formats
HDR10 — The common, open standard.
Dolby Vision — An advanced format with dynamic metadata for scene-by-scene optimization.
HLG (Hybrid Log-Gamma) — Often used in television broadcasting.
HDR10+ — A dynamic metadata standard developed by Samsung.
What to do if HDR isn’t working?
Make sure your display supports HDR10, Dolby Vision, or HLG.
Check the settings in Windows/macOS/your TV (HDR must be enabled).
Use an HDMI 2.0a (or later) or DisplayPort 1.4 (or later) cable for signal transmission.