JAPANNEXT JN-5X40 Manuel De L'utilisateur page 12

HDR stands for High Dynamic Range, which is a display technology that can express a wider
range of brightness than the conventional SDR (Standard Dynamic Range).
By setting the HDR MODE in the screen (OSD) menu to AUTO, if the player and content are
compatible, the monitor will automatically enable the HDR function.
Depending on the Windows 10 settings, HDR may not be displayed
properly. Please check the settings for HDR in Windows 10.
How to open the settings screen: [Settings] > [System] > [Display] > [HDR]
If you turn on the HDR setting in Windows 10, the desktop display may appear darker than
when in Standard Dynamic Range (SDR) mode.
This is because the monitor's interpretation of HDR and SDR signals differs, and is not a
malfunction.
Please turn off the HDR function for normal PC use.
Note: To enable the HDR function, the connected device and content must be HDR compatible.
Note: Even in Windows 10 Fall Creators Update (version 1709), the Windows HDR settings will not be displayed
if the graphics card does not support HDR.
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ABOUT HDR
HDR function is only available for HDR content