The screen brightness suddenly changes. (OLED TV)

If Auto luminance level, Ambient light sensor, Light and Color sensor or Light sensor is set to On, the brightness of the TV screen changes to match the ambient brightness. For assistance on how to access Auto luminance level, Ambient light sensor, Light and Color sensor or Light sensor settings, check the following.

1. Open the  Settings screen. How to access Settings
   • If the remote control has a Quick Settings ( or ) button, press the Quick Settings button and select Settings.
   • If the remote control does not have a Quick Settings ( or ) button, press the HOME button and select Settings.
2. The next steps will depend on your TV menu options:
   • Select Display & Sound — Ambient Optimisation Pro — Auto adjust according to ambient light — Advanced settings — Auto luminance level.
   • Select Display & Sound — Picture — Ambient light sensor or Light sensor — Auto luminance level.
   • Select Display & Sound — Picture — Light and Color sensor — Brightness.
   • Select Display & Sound — Picture — Light sensor.
   • Select Display — Picture — Light sensor.

Notes: Light sensor or Ambient light sensor is located around the center of the bottom part of the TV screen.

If an image is displayed on the TV screen with which screen image retention may easily occur, the function that gradually reduces the screen brightness operates in order to protect the TV from screen image retention. If you change the screen or perform another action that eliminates the risk of image retention occurring, the brightness returns to normal.
If the brightness change is inconvenient, lower the Peak Luminance setting. This will reduce the brightness change.

1. Open the  Settings screen. How to access Settings
   • If the remote control has a Quick Settings ( or ) button, press the Quick Settings button and select Settings.
   • If the remote control does not have a Quick Settings ( or ) button, press the HOME button and select Settings.
2. The next steps will depend on your TV menu options:
   • Select Display & Sound — Picture & Sound — Picture — Brightness — Peak luminance — Medium or Low.
   • Select Display & Sound — Picture — Brightness — Peak luminance — Medium or Low.
   • Select Display & Sound — Picture — Advanced settings — Brightness — Peak luminance — Medium or Low.
   • Select Display — Picture — Advanced settings — Brightness — Peak Luminance — Medium or Low.

Notes: With screens such as the HOME screen and the app's top screen that contain many bright still images, this function will especially frequently operate.