Optimus Maximus Keyboard with Tiny LCDs

If you’re not familiar with the keyboard, it is a standard sized keyboard with tiny LCDs in each keys making it ultimately configurable.

I am very interested in this technology for a separate usage. In particular the tiny OLED screens that go into each key. Even if they are still built into the keys for a keyboard, that wouldn’t be a bad thing.

Would anyone have any idea who manufactures these keys? Are they soley for the Lebedev Studios (Optimus)?