It was generally thought that the Galaxy S III will come with a Super AMOLED HD Plus display, instead of the Super AMOLED HD display found on the Galaxy Nexus. The Super AMOLED HD Plus display was already being used by Samsung on the Galaxy Tab 7.7 so there was no issue of the technology not being ready in time. However, many people were disappointed to see that the Galaxy S III used the same Super AMOLED HD display with PenTile matrix as the one on the Galaxy Nexus.
A lot of questions were raised as to why Samsung did not use a Super AMOLED HD Plus display on the Galaxy S III. The Korean company finally answered this question at the on-going CTIA to a reporter of MobileBurn that Super AMOLED HD Plus displays don’t last as long as the Super AMOLED HD, and so the company went with the Super AMOLED HD display on the S3.
Super AMOLED HD displays have a PenTile (RGBG, 2 green pixels for every blue pixel) sub-pixel arrangement, while Super AMOLED HD Plus has a RGB sub-pixel arrangement. The blue sub-pixels on the Super AMOLED screen degrade the fastest, so since the HD Plus has more blue sub-pixels, the display will not last as long as the former.