According to a report from Reuters, the next iPhone’s displays are set to go in to mass production next month. The report states that the iPhone 6 could feature displays made by Japan Display, LG and Sharp.
As for what size they are, there’s no certainty. Reports during the year have suggested we’re to expect two different size models, with 4.7-inch and 5.5-inch displays being touted.
Apple Inc suppliers will begin mass producing displays as early as May for the next iPhone, expected to be launched this autumn, with a 4.7-inch screen likely to be produced first while a 5.5-inch version could be delayed, supply
If displays are going in to production in May, it would line up pretty well with a September/October launch. Typically, assembly of the units themselves will begin to ramp up in late summer, and so it makes complete sense that displays are being prepared next month.
Reuters‘ report also indicates that the proposed 5.5-inch version is “delayed” due to manufacturing difficulties. To that I state the usual: You can’t delay an unofficial product that no one’s announced.
There are all kinds of lessons to learn in the design and production of a new device. If there are manufacturing issues, it’s all just part of the process. Apple might be aiming for a specific time frame with this, but we’ve known it to change its mind in the past.