On the LG device, a comfort view can be activated to reduce eye strain in dark environments. This is made possible by reducing blue light. The blue light can be adjusted to your needs using a filter. In addition, the comfort view also allows a black and white view.

The comfort view, known as night mode on Android, can be switched on or off manually or by means of a schedule, which can be activated by a set time or automatically from sunset to sunrise.

Android 9 | LG UX 9.0
Comfort view -  Open the  Settings
Comfort view -  Tap on  Display
Comfort view -  Tap on  Comfort view
Comfort view -  Enable or Disable  Use Comfort view
  1. Open the Settings
  2. Tap on Display
  3. Tap on Comfort view
  4. Enable or Disable Use Comfort view

LG Instructions