Putting the raspberry pi 3 (from 2018) in a new monitor

I really want to use the raspberry pi for a bigger sized monitor, but it couldn’t work. Could you help me? Plugged in the HDMI cable to the monitor and even tried using the piper power bank…

What happens when you plug it in?
Do you see anything?
Did you plug it in and then power on the pi?
Does the piper screen still work?
Are you sure you are using a good HDMI cable to connect the Pi to the monitor?

I regularly plug into a larger monitor and it works fine.