Charging back light

[JAJWatt]

When charging my phone, a couple seconds goes by and the whole display turns Grey. Anyway I can remove this feature? 

[meself]

In display settings can change the time out time

[BlueSkies]

Did changing the screen timeout work? I would go to settings -> display and adjust some of the settings there

[JAJWatt]

Thanks for the help but no, the screen timeout didn't change it