Question of hardware/software

Hi, my display board circuit board decided to fry itself today. Luckily it did not fry my Cohesion Laserboard or my other circuit board where my x and y cable stops and computer ribbon are. However, I need a new display circuit board, but I thought I may as well get a new display panel. My question is, if I want to get a Ruida do I need to get the Panel, the mainboard or the whole set.? Seeing as though I already have the software with Cohesion and Lightburn