In smartphones, pattern burn in is typically associated with always-on displays, navigation buttons, and the notification bar. In short, where any images or icons are persistent. The example below ...

At six months (~1,200-1,500 hours) burn-in was a bit more noticeable but ... Check it out for yourself (and here's a Google Drive link with examples that are high bitrate and optimized for viewing ...

Typically, “burn-in” has at least a recognizable shape to it. It tends to be localized. And in extreme examples, you can clearly make out characters or specific shapes. like the logo for a ...