Hi,

I received the monitor controller board way early than expected and got a power supply from Amazon (12V 5A to get enough juice for the board and the RPI as advised):

https://www.amazon.fr/gp/product/B01LT77HW6/ref=ox_sc_act_title_1?smid=A30SNSYXWKC8W6&psc=1

I am very happy to announce that my old laptop’s screen works!

And the board has indeed a 5V output which I tested and seems to work fine!

Next step: get some header pins and cable to power up the RPI from the controller board!

Thank you guys again for your advise.
Have a good weekend