Synopsis of article: Apple also recommends using Auto-Brightness, shorter Auto-Lock periods, and running the latest software update to prolong the life of the OLED display. Finally, Apple recommends against showing static images at full brightness for extended periods of time with Super Retina display on iPhone X: Here’s Apple’s explanation: If you look at an OLED display off-angle, you might notice slight shifts in color and hue. This is a characteristic of OLED and is normal behavior. With extended long-term use, OLED displays can also show slight visual changes. This is also expected behavior and can include “image persistence” or “burn-in,” where the display shows a faint remnant of an image even after a new image appears on the screen. This can occur in more extreme cases such as when the same high contrast image is continuously displayed for prolonged periods of time. We’ve engineered the Super Retina display to be the best in the industry in reducing the effects of OLED “burn-in.” You can read more about the iPhone X Super Retina display here.