Laptop to external monitor connect higher battery consumption?

Fr
1

I have a laptop (Full hd 1080) I want to connect to my monitor, which is also full hd to have a larger picture when playing. My question is now whether more battery is consumed, even if I turn off the laptop screen so that only the monitor displays the image. Is it a pity on my laptop in the long run? Question because I'm more of a cautious person and I still need the laptop for studying.

Bu

If you turn off the display of the laptop with external image output, then you should consume even less battery. The device will not be harmed.