A:Answer Hi Atlas, if you have already tried Dynamic Picture Mode which makes pictures brighter and clearer in bright viewing environments, you may also want to manually adjust the Brightness and other settings to your liking by going to: Settings > Picture > Expert Settings.
Ambient Light Detection will also automatically adjust the brightness level of the TV, according to the ambient light level, to reduce power consumption. If Ambient Light Detection has adjusted the screen brightness to a too bright or dark level, you can select Minimum Brightness to manually adjust the minimum screen brightness.
Go to Settings> General> Eco Solution> Ambient Light Detection
^Val