AUO announced that they developed a new 5.7" WQHD (2560x1440, 513 PPI) AMOLED panel. The panel is ultra slim at 0.57 mm and it uses special driver design to increase touch sensitivity and as a result can support 10 touch points.
AUO says that this is the world's highest resolution AMOLED. Actually we know that Sharp, and SEL developed a 13.3" 8K CAAC-OS OLED that achieves 664 PPI - but this one hasn't been unveiled yet (it will be shown at SID 2014 in a couple of months). In addition Samsung Display announced a while back that they are developing a 5.2" WQHD panel which will have a pixel density of 560 PPI. Reportedly SDC is also planning to make a UHD panel that will have a PPI of 860 (!).
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