When the TV is on a screen such as the Home screen, it switches over to the screen saver in a short time.

In the Ambient mode setting, you can set the type of images to be displayed as the screen saver:
On the remote control, press the Quick settings ( or ) button, and select Settings → System → Ambient mode.
Note: Ambient mode automatically activates after a certain period of time without any operation. The startup time cannot be changed.

For Android TV models, the Screen saver activation time can be changed:

For Android TV (Android™ 7.0 or later)

1. On the remote control, press the HOME or Quick Settings button.
2. Select Settings.
3. The next steps will depend on your TV menu options:
   • Select Device Preferences → Screen saver → When to start.
   • Select System → Screen saver → Screen saver → When to start.
   • Select Screen saver → When to start.
4. Select from the following: 5 minutes, 15 minutes, 30 minutes, 1 hour, or 2 hour

For Android TV (Android 6.0)

1. On the remote control, press the HOME button.
2. Select Settings.
3. Select Daydream in the TV category.
4. Select When to daydream.
5. Select from the following: 5 minutes, 10 minutes, 15 minutes, 30 minutes, or 1 hour

NOTE: Sony recommends that the Screen saver or When to daydream be set to the minimum (5 minutes) to avoid image retention and help keep a longer panel life.