Most of the time, on the control board, the component side is down in builds I've seen.
Here's a picture of my original 15" LCD guts, looks same as yours...

And here's in the projector...

As you can see the component side (Was outward while the LCD was in it's case) is now facing downwards.
This is for a straight shooter projector.
It IS possible to bend the edge connectors over to the other side of the LCD, which can be done for a folded path projector.