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Super AMOLED Plus: technology explained
Samsung's Super AMOLED Plus displays are an upgrade to the company's first generation Super AMOLED. The new displays offer 50% more sub-pixels, and in fact use regular RGB matrix (as opposed to the Pentile Matrix used in the first generation displays). The displays are also thinner, brighter and more efficient (by 18%) than the old Super AMOLED displays.
Using more sub-pixels means a clearer display - even though the resolution per-inch is actually lower. The resolution is actually lower per inch than previous AMOLEDs (a 4.3" Super AMOLED Plus has the same resolution as a 4" Super AMOLED for example) - but Samsung plans to soon move to a new manufacturing process that will enable them to achieve 300ppi or more (pretty much the same as in Apple's Retina Display).
Super AMOLED Plus was announced in CES 2011, together with the first phone to sport these displays - the Infuse 4G. The display is a 4.5" one, the largest AMOLED Samsung ever made. Samsung's Galaxy S2 also has a Super AMOLED plus display (4.3" WVGA)
The largest Super AMOLED Plus display is used in Samsung's Galaxy Tab 7.7 - it's a 7.7" 1280x800 display.
Back in July 2010, Samsung announced that they plan to soon double their AMOLED displays' efficiency, lifetime and power consumption. Perhaps the Super AMOLED Plus is the result of that research, we are not sure.
The original Super-AMOLED displays featured an integrated touch function over a regular AMOLED. Samsung has placed a touch-sensor (on-cell) over the display and made it evaporate. The thickness of the touch sensor is just 0.001mm (!) this allows the screen to provide better images and to have great visibility even in direct sunlight (Samsung says that they perform 20% better than regular touch AMOLED outdoors). Super-AMOLEDs also have better lifetime than regular AMOLED and are very responsive to touch. Super-AMOLED have been announced in January 2010 and are used in Samsung's very successful Galaxy-S family of smart phones (Samsung sold more than 10 million units in 2010 alone!).
Super AMOLED Plus news
Super AMOLED Plus on video
Here's a nice short video comparing the Samsung Galaxy S2 (with a 4.3" WVGA Super AMOLED Plus display) to Galaxy S (with a 4" Super AMOLED) and an iPhone 4 (with a 3.5" IPS-LCD):
Super AMOLED "1" explained and some cool videos
Here's a nice video interview with a Samsung employee that explains how Super-AMOLEDs "1" work and why they are the best displays around:
Here you can see how the Super-AMOLED behaves in direct sun: