Im building a system for my father new sailboats. i need a good LCD for inside the boat , need to be able to resist high temperature and humidity. Need a 17'' to 19'' maximum
Go to a watersport store. Try google to find one near you. Here there are like 5 of those stores who sell lcd's for in a boat. Not sure if those are specifically made for boats so I think a normal lcd would do fine aswell.
Inside the cabin I assume you meant. I met this owner of this site at the Miami Boat Show and he seemed fairly knowledgeable. I know there are other ones out there so just search around. Check the www.mp3car.com forums as well.