Elgato's Stream Deck is a more mainstream application of the same approach, with a single LCD under all of the keys. The Stream Deck isn't doing anything parti

Elgato's Stream Deck is a more mainstream application of the same approach, with a single LCD under all of the keys. The Stream Deck isn't doing anything particularly exotic with its key mechanism, though (from what I can tell, there's a frame between the LCD and buttons with the actual contacts on it; no Hall-effect sensors or anything like that).