OnlineScreenTesterPro
Repair Utility

Stuck Pixel Doctor

A targeted 60Hz/120Hz rapid RGB excitation tool designed to stimulate frozen liquid crystals and revive unresponsive subpixels.

Display Active

Targeted Subpixel Exciter Stage

Drag the flashing box directly over the stuck pixel. Let it run for 10 to 20 minutes to exercise the liquid crystal transistors.

💡Softbox Light
Click to Enter Distraction-Free Fullscreen
Auto-hides in 3s · Tap to cycle colors
Canvas:#FFFFFF
Mode:Solid Color

How Does It Work?

Liquid crystal molecules in LCD/IPS/VA panels can occasionally get stuck in a single alignment orientation, causing one subpixel (Red, Green, or Blue) to remain permanently illuminated. Rapidly alternating voltage states at 60Hz to 120Hz can gently encourage the crystal to reorient.

Best Practices

  • Position the flashing box directly over the defect.
  • Leave it running undisturbed for 15 to 30 minutes.
  • Avoid pressing hard on the screen with your fingers, which can cause permanent layer delamination.