Display; Screen Brightness; Blue Light Filter; Night Mode - Samsung Galaxy S9 User Manual

Settings

Display

You can configure the screen brightness, timeout delay, font size, and many other
display settings.

Screen brightness

Adjust the screen brightness according to lighting conditions or personal preference.
1. From Settings, tap
2. Customize options under Brightness:
• Drag the Brightness slider to set a custom brightness level.
• Tap Adaptive brightness to automatically adjust the screen brightness based
on the lighting conditions.
– Reset usage patterns: Clear your brightness adjustment history. Your
device begins learning your preferences again after the reset.

Blue light filter

The Blue light filter can help you sleep better if you use your device at night. You can
set a schedule to automatically turn this feature on and off.
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From Settings, tap
following options:
• Drag the Opacity slider to set the opacity of the filter.
• Tap Turn on now to enable this feature.
• Tap Turn on as scheduled to set a schedule for when Blue light filter should
be enabled. You can choose Sunset to sunrise or Custom schedule.

Night mode

Night mode allows you to switch to a darker theme to keep your eyes more
comfortable at night.
◌
From Settings, tap
Display.
Display > Blue light filter, and then choose one of the
Display > Night mode > Turn on now.
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