It reduces the eye strain when you are using your phone in dark place by eliminating blue light which is harmful for our eyes.Simply it filter the blue light emmision. Its a very good feature you should use it at night.It will help you for a better sleep.
Thanks for being with Samsung and for sharing your concern. Been having some sleepless nights? Your phone may be the reason. Blue light emitted from your phone can keep you alert and prevent you from getting any shut-eye. Use the Blue light filter at night to relax and get a good night’s sleep. You can even set a schedule so this feature automatically turns on and off. Sleep tight! Time for bed? Get some rest with the Blue light filter. You can schedule it to turn on automatically each night. You can also adjust the opacity to make everything readable. It’s easy to activate:
1. Navigate to Apps > Settings. 2. Touch Search, and then search for and select Blue light filter. 3. Choose one of the following options: • Turn on now: Touch to enable this feature. • Turn on as scheduled: Touch to set a schedule for when Blue light filter should be enabled. You can choose Sunset to sunrise or Custom schedule. 4. Touch and drag the slider to the left or to the right to set the opacity of the filter. Be sure to hit ♡ when you find an answer that works for you.
