Since the Apple iPhone 5, Apple has used in-cell touchscreen technology, which allows the company to make the iPhone thinner than it would be otherwise. The problems using the in-cell process with the larger display could force Apple to turn to a film sensor display, just for that sized screen.
Earlier Monday, we showed you a 5.5 inch 1440 x 2560 screen being produced by Japan Display. While it might seem like the perfect size for the larger-screened iPhone model, we're not sure that Apple is ready to put a QHD display on the iPhone just yet. We also pointed out that Apple doesn't normally use parts that have been introduced months before the launch of the next-gen iPhone.
Tonight's report from Reuters seems to contradict an earlier one from Nikkei, which called for production of the iPhone 6 display to start this month. According to that report, LG Display, Japan Display and Sharp would all start production of the display this month.