It's going to be another couple of years until Korean rival LG begins producing 40-inch OLEDs, but already Samsung is talking of trialling 42-inch OLED TVs later this year.
It won't hit mass production until next year, but that's still a jump-start on LG, who's going to be releasing OLEDs just half the size this year. Sony? Let's not even get into Sony's OLED production. [OLEDNet via OLED-Display]