Unlike a dead pixel (which is permanently black), a stuck pixel is a single subpixel (red, green, or blue) that is permanently turned on. Sometimes, rapidly cycling colors can un-stick the liquid crystal.
Fill the screen with solid colors to easily spot stuck or dead pixels on your monitor.
Examine dark screens to locate hot or bright subpixels permanently stuck open.
Fill your screen with pure primary, secondary, black, and white fields to inspect overall panel cleanliness.
Inspect OLED and LCD displays for persistent shadow outlines, static HUD retention, and panel burn-in.
