Article ID : 00173749 / Last Modified : 26/10/2020

My OLED TV screen suddenly gets brighter or darker

    IMPORTANT: This article applies only to specific products and/or operating systems. Check Applicable Products and Categories for details.

    If the TV screen brightness suddenly changes, check the following:

    • If the Light and Color sensor or Light sensor is set to ON, the brightness of the TV screen changes to match the ambient lighting. To change the Light and Color sensor or Light sensor settings, follow these steps:
    1. On the supplied remote, press the HOME button.
    2. Select the Settings icon.
    3. This step will depend on your TV menu options:

      NOTE: The Light Sensor is located in the centre of the bottom part of the screen.

      • Select Display & Sound → Picture → Light and Color sensor → Brightness.
      • Select Display & SoundPictureLight sensor.
      • Select DisplayPictureLight sensor.
    • If an image that may cause image retention to occur easily is displayed on the screen, the screen brightness gradually reduces in order to protect the TV from image retention. The brightness returns to normal if you change the screen or perform another action that eliminates the risks of image retention.NOTE: This function activates frequently because the HOME screen and the apps top screen contain bright still images.

    If the brightness change is inconvenient, lower the Peak Luminance setting to reduce the brightness change:

    1. On the supplied remote, press the HOME button.
    2. Select the Settings icon.
    3. The next steps will depend on your TV menu options:
      • 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.