[Nintendo Life]

… Nintendo is gradually unveiling details about the console and its tablet controller …

The tablet screen itself, which hands-on reports confirm is a resistive touch screen — similar to DS/3DS technology — and has a standard-definition resolution, has been an area where Nintendo has considered more advanced technology. The patent filings raise the possibility of a 3D or HD screen on the tablet controller, with the 3D screen having the option of being stereoscopic glasses-free technology, like 3DS, or potentially just capable of outputting 3D images that are viewed through glasses. That would certainly give the controller an extra edge, though would also undoubtedly add to the cost of the console.  …

Read the full article here: http://www.nintendolife.com/news/2012/02/nintendo_considered_a_3d_screen_on_wii_u