Screen Checker: Keep Screen On

Detect any stuck or dead pixel on your OLED/LCD screen. Keep Screen Awake.
OLED screen burn-in detector.
Dead Pixel Detect.
Black Spot Detect.
Stay Alive! Keep Screen Alive.
Prevents your phone from being locked so that your screen is always on.
Keep your Screen Always On.
You can view screen information, including the name, resolution, number of multi-touch, physical size, and refresh frequency.