Best 32'' 4K display for photo display? Any thoughts?

Inspired by Kerry’s Memento autopsy post, I will be giving my 4k digital picture frame project a renewed boost. Being a (hobby) photographer, I am very picky when it comes to display quality and willing to pay the extra Euro if it’s not completely overboard.

Due to space restrictions, 32’’ is probably the largest I can go with. Full 4K UHD resolution is the aim (aspect ratio will be reduced to 16:10 or 3:2 with a matte).

I recently tested the Meural which has an outstanding display. Would anybody know what manufacturer they use and what is so special about this display? It is no doubt the best I have ever seen.

Alternatively, any good recommendations for this size of screen?