Targeted color cycling exercise

Stuck Pixel Fixer

Move a small color cycling patch over a pixel that appears stuck, then choose its size and switching speed. The exercise may affect some temporary pixel states, but it cannot guarantee a repair.

Area: Movable patch
Colors: Eight color sequence
Speed: Slow, normal or fast
Guarantee: No repair guarantee

Use the Stuck Pixel Fixer on a suspect screen

Confirm the point on several solid colors before running a rapid sequence over it.

Locate the pixel

Use Screen Test to find the exact point and note which colors make it visible.

Position the patch

Click or drag inside the dark stage to center the patch over the suspected pixel.

Choose size and speed

Begin with a small patch and Slow. Increase only if the area remains comfortable to view.

Run briefly and recheck

Pause the cycle, return to solid test fields and compare the pixel again.

Stuck and dead pixels are not the same

A stuck subpixel may remain on one color, while a dead pixel may remain dark. Color cycling is sometimes used as an exercise for a stuck state, but it cannot restore a physically failed component.

If the point is visible only on one field, test the same location on red, green, blue, white and black. A surface speck can also look like a pixel from normal distance.

Why the patch is movable

A full screen rapid flash is unnecessary when the concern is one small location. The patch limits the changing area and leaves the rest of the display dark.

The Size slider ranges from 24 to 180 pixels, which helps cover one point or a small cluster without filling the whole display.

Pixel fixer settings

Start conservatively and stop as soon as you have completed the planned check.

Start or pause

Begins the eight color loop or freezes the patch at its current color.

Patch size

Changes the square from 24 to 180 CSS pixels.

Cycle speed

Uses 450ms, 180ms or 80ms intervals for Slow, Normal and Fast.

Placement

Click inside the stage to move the patch center to that point.

Important: Rapid color changes can be uncomfortable and may be unsuitable for people sensitive to flashing. Stop immediately if you feel unwell. No result is guaranteed.