starting with «DMG» —
Sharp was approached to manufacture the screens of the DMG because it already supplied the Game & Watch displays —
Sharp was unable to produce the screens at a price low enough for Nintendo so that development of the console reached a dead point — R&D 1 learned about the «Chip on Glass» technique which would make a cheap
production possible and approached TV maker Citizen to produce the Game Boy's screens using this technique — in the
end,
Sharp was also able to use the CoG technique and was thus chosen to produce the screens and made a four billion yen investment for that — the screens
Sharp produced at the beginning were of a wrong type and were next to useless for the Game Boy project — Yokoi remembers Hiroshi Yamauchi's reaction on Game Boy prototype with wrong screen type: «What the hell is this?