Which flex is responsible for touch screen?

Hi there :)

As I can see there are 3 flexes to display

bottom left - the thinnest - as I know for backlight

Then bit higher to left - which I dont know and on the top left corner the one which is going through cartridge daughterboard.

And bonus question if someone would know - I got different other Switch with stable 0.46A when motherboard connected with those 3 connectors + battery what can be damaged?

Thank You for help.