If you're making a portable you probably need something to watch it on. (Unless you want to guess what's happening in the game, but I wouldn't advise that) Anyway, this forum is your "Hacking a pocket TV/screen" one-stop solution. Share your experiences and knowledge here.
Would it be cheaper to just buy an LCD screen alone, than buy a portable TV/PS1 portable screen and rip it apart. or can you only buy LCD screens bulk?... I dont know