There are several main types of LCDs.
First is character. It can display anything, but the pixels are arranged in 5x7 groups. It comes in several standard sizes, none of which are nearly big enough for a marquee.
Next is graphical. They can either be serially controlled, usually fairly small (too small for a marquee), and are available fairly cheaply.
Next is video. Often full color with video input, this is what you want for a marquee. Unfortunately, they are almost always 4:3, some are 16:9. They are also hideously expensive. (mostly because there is a huge market for them)
Last is custom/dedecated. The type used in the old electronic games, it has line art graphics permanently shaped into the display. Can be any size, very cheap in large quantities, but huge setup cost.
So to answer your question, there really isn't anything available for a marquee. You could have one manufactued for you, if you have $10,000 to burn.