Rumors out of Korea are suggesting that Samsung's fabled Galaxy S III will have a 4.65-inch Super AMOLED Plus display with 1280 x 720 resolution. DDaily reports that Samsung Mobile Display (SMD) has started production on the screen, which would be the first non-Pentile phone display from the company's OLED arm to reach HD resolution. Samsung's previous high water mark in this size class was the 4.65-inch 720p Super AMOLED display found in the Galaxy Nexus and the Galaxy S II HD LTE.

While we consider the new HTC One X's 720p Super LCD 2 to have the best screen we've ever seen on a phone, Samsung has made clear its intentions to focus on OLED going forward, and such a sharp Super AMOLED Plus display could further raise the bar. The much larger 5.3-inch Galaxy Note used a Pentile arrangement that we found fairly unobjectionable, and this rumored Galaxy S III screen's pixel density of 316ppi is just a couple of dots away from the iPhone's comparatively tiny Retina display.

The Galaxy S III may not keep us waiting much longer, as Samsung has told AsiaE that it's started testing the device with Korean carriers. However, the testing process is apparently proving to be quite a challenge — Samsung wants the testing to be done quicker than the standard two months, but it'll take a while longer since the device features a quad-core processor as well as LTE.

Hyunhu Jang contributed to this report.