First in-cell touch QHD display by JDI
Apple iPhone 6s may come with a 1080p display, 6s Plus could boast a 2K panel
Apple is not one to throw massive iPhone specs or design upgrades willy-nilly at every possible edition. Instead, it carefully weighs its options, waiting for this or that technology to mature, prove useful (and fall in price), before it jumps on it wholeheartedly. Nowhere is that peculiarity of Apple's iPhone upgrade mantra more visible than in the screen department. Apple held back from enlarging the screens of its iPhone franchise in any significant manner for years, while Android was running amok with 5"+ handsets becoming the norm.
Ditto with the resolution and pixel density count, but this year the trend might change, if a reported tip from Apple's supply chain is to be believed. The popular Feng network in China has sourced info that Apple might go with a full 1080p display for the upcoming iPhone 6s, and a 2K (QHD?) one for its second phablet edition - the iPhone 6s Plus, 7 Plus, or whatever the company decides to name it.
Apple was recently rumored to invest $1.7 billion in the largest mobile display maker JDI for a new iPhone panel plant, so there might be some merit to the speculation that it will be introducing different panels on the 4.7" iPhone 6s and the 5.5" 6s Plus than what we have on last year's editions.
In any case, the sources also confirmed for the umpteenth time that Apple will indeed go with a 12 MP camera with a Sony sensor for this year's iPhones, which is a very interesting development in its own turn, as the sensor is reported to be of the RGBW variety, improving low-light and color reproduction capabilities.
If we collate all these rumors together, it might turn out that this year's iPhone edition will throw much more bones at the fans of the brand than usual for the intermediate annual upgrade scheme we are accustomed to. Back in the spring, after all, JDI announced that it has created the first Quad HD panel with in-cell touch technology, so there is a chance that might be the same panel we will see in the eventual 6s Plus.