In spring 2010, Hitachi showed off a 3.1 inch screen that could reproduce 3D graphics without glasses, shortly after Sharp revealed a 3.4 inch one.
At that time, rumors swirled that either Hitachi or Sharp would be providing the 3D top screen for the then unreleased 3DS. Since then, details have been scant about who exactly provided the 3D screen.
Today in Japan, Hitachi revealed a new 4.5-inch glasses-free screen, leading to speculation online that Nintendo is readying a 3DS XL. In the past Nintendo stated that customers should not wait for a new 3DS hardware iteration.
Edited by Paradox me - 7/20/11 at 5:42am