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AUO developed a 5.7" 513 PPI AMOLED and a 1.6" AMOLED for smartwatches
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 (!).
AUO also revealed that they have developed a 1.6" Wearable OLED for smart watches. It's not clear whether this is a flexible/curved AMOLED (AUO have been showing flexible OLED demonstrators, but I don't think they are ready to commercialize these yet) or a rigid one.
It's great to see AUO's new panels, but we're still waiting for real mass production from the Taiwanese maker. According to the latest reports, AUO started producing AMOLEDs in their 4.5-Gen fab in Singapore after years of delays. According to our source, AUO is actually only producing samples. Those 5" 720p (295 PPI) panels have been been submitted to a company based in China for evaluation. AUO also developed a 5" Full HD AMOLED (443 PPI).
AUO's yield is still reportedly very low at around 40%. Perhaps one way to overcome these technical issues is to focus on smaller displays - for example the 1.6" wearable OLED. The smaller the display, the higher the yield. AUO's capacity is currently only 5,000 Gen-4.5 substrates per month.