https://www.cnbc.com/2017/12/07/new-iphone-said-to-offer-larger-iphone-x-display--report.html

A new report from Nikkei suggests Apple will manufacture three new iPhones next year, including a new larger 6.3-inch iPhone with an OLED screen.

Apple's $999 iPhone X switched from a traditional LCD panel to a more premium OLED screen, which is more colorful, brighter and energy efficient. Apple continued to use LCD panels on the iPhone 8 and iPhone 8 Plus.