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Originally Posted by JTravers
Or they might just mean someone like who Faterson quotes above claiming that the IGZO display tech is the problem in the retina mini. That, of course, is patently false since the previous mini had the same reduced gamut without an IGZO display, while the iPad 3, 4, and Air all have ~100% sRGB even though the Air has an IGZO display and the 3 and 4 don't. Apple just chose to give their cheaper tablet a slightly lower quality display.
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It doesn't appear Faterson is off the mark.
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All of this reliance on IGZO is really bad planning… Right now there is a readily available display technology that has much higher performance than IGZO. It’s Low Temperature Poly Silicon LTPS, and it is used in all of the iPhones and in all of Samsung OLEDs (so it’s available in large quantities). Two innovative Tablet manufacturers, Amazon and Google, have significantly leapfrogged Apple by introducing Tablet displays using LTPS (in the Kindle Fire HDX 8.9 and the new Nexus 7), and they are significantly outperforming the IGZO and a-Si displays in the current iPads. Apple is now lagging in displays, an area where it was once the leader…
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The fact that IGZO works well at 10" does not necessarily imply it also works well at 7.8", there could be scaling issues.