Blue Light Filter - Samsung Galaxy S9 User Manual

Settings
• E asy mode: Switch to easy mode to display larger icons and apply a simpler layout to the
Home screen.
• I con frames: Set whether to display shaded backgrounds to make icons stand out.
• E dge screen: Change the settings for the Edge screen. Refer to
information.
• L ED indicator: Set the device to turn on the LED indicator when you charge the battery,
when you have notifications, or when you make voice recordings while the screen is
turned off.
• S tatus bar: Customise the settings for displaying notifications or indicators on the status
bar.
• N avigation bar: Change the navigation bar settings. Refer to
buttons) for more information.
• S creen timeout: Set the length of time the device waits before turning off the display's
backlight.
• B lock accidental touches: Set the device to prevent the screen from detecting touch
input when it is in a dark place, such as a pocket or bag.
• S creensaver: Set the device to launch a screensaver when the device is charging. Refer to
Screensaver for more information.

Blue light filter

Reduce eye strain by limiting the amount of blue light emitted by the screen.
While you are watching HDR videos from HDR-exclusive video services, the blue light
filter may not be applied.
1
On the Settings screen, tap Display → Blue light filter, and then tap the Turn on now
switch to activate it.
2
Drag the adjustment bar to adjust the filter's opacity.
3
To set the schedule to apply the blue light filter to the screen, tap the Turn on as
scheduled switch to activate it and select an option.
• S unset to sunrise: Set the device to apply the blue light filter at night and turn it off in
the morning, based on your current location.
• C ustom schedule: Set a specific time to apply the blue light filter.
Navigation bar (soft
199
Edge screen for more