Need some simple Screen Guidance

[Nintendofreak]

I really want to start/make a portable this summer as my own little summer project.
The main thing I'm having trouble with is understanding the screen choice.
The thing that kinda bothers me is buying a screen without good documentation...

Here's a screen I've been looking at.

http://cgi.ebay.com/7-Universal-Game-Sc ... 3a57bf14c2

It would help if I could get some pros and cons about this screen and possible tips about how it would effect the portable.

 

[samjc3]

i own one of that exact screen. it is very nice. very nice indeed. but it only supports widescreen, so anything old will be stretched. also, the screen is pretty big. so if you want a small portable, it wont help. i believe that screen can run on 7.4v, so thats good.

 

[Nintendofreak]

So there are 7" screens that switch to 4 from 16:9?
If so, I'd like to see a few.
Maybe the one Mario used in his Sprocket 64?

 

[samjc3]

there are. (i have one of those as well) but im not sure what brand/make/etc they are. mine is exactly the same as the one in mario's amazing sprocket64

 

[Nintendofreak]

Does any hand held portable TV work also? If so, do they all have the 16:9 to 4 switch.
Most LCD's now are 16:9, but I would like a Portable screen with the 4 switch like mario.