# OLED Burn-In Fixer and LCD Stuck Pixel Exerciser
This OLED screen burn-in fixer is a fullscreen pixel exerciser for temporary image retention, faint ghost images, and some LCD stuck pixels. It generates rapid red, green, blue, white, black, yellow, and static patterns directly in HTML5 Canvas. There are no video files, no external image assets, and no download step: the browser paints every frame at the current screen size.Photosensitivity warning
# What Burn-In, Image Retention, and Ghosting Mean
- OLED burn-in
- Permanent uneven wear of organic subpixels. A static logo, taskbar, navigation bar, or game HUD can leave a visible shape because those pixels aged differently from the rest of the panel.
- Temporary image retention
- A short-lived ghost image that remains after static content disappears. It may fade with normal mixed content, a compensation cycle, or a pixel exercise pattern.
- LCD stuck pixel
- A pixel or subpixel stuck showing red, green, blue, white, or another fixed color. Rapid state changes can sometimes free it if the issue is not physical damage.
- Dead pixel
- A pixel that stays black because it no longer emits or transmits light correctly. A browser pixel exerciser normally cannot revive a truly dead pixel.
- LCD ghosting
- Motion trails caused by slow pixel response. That is different from screen burn-in, although users often describe both as ghost images.
Temporary retention
Usually fades after mixed content, screen refresh routines, or a short RGB/noise session.
- Visible after static content
- Often softer at the edges
- May improve within minutes or hours
Permanent burn in
Uneven OLED wear that remains visible after rest, compensation cycles, and varied content.
- Matches long-term static UI
- Most visible on flat colors
- Does not disappear after exercising
Stuck pixel
A single point or tiny cluster locked on one color rather than a large ghost image.
- Often one pixel wide
- May be red, green, blue, or white
- Sometimes responds to rapid color changes
# How to Use the Pixel Exerciser Safely
- Lower brightness before the first run, especially on OLED phones, OLED TVs, and laptop OLED panels.
- Start with 5 to 10 minutes; do not leave the display unattended for long sessions.
- Use fullscreen so the affected area receives the same pattern as the rest of the panel.
- Keep the room aware of flashing light; do not run the test around people who have not consented to it.
- Stop if the panel becomes unusually warm, if the browser stutters heavily, or if you feel discomfort.
- After the run, inspect neutral gray, white, black, red, green, and blue screens to compare results.
| Problem | First Mode | First Duration | Brightness Guidance |
|---|---|---|---|
| Faint OLED ghost image | Hybrid RGB plus static | 5-10 minutes | Comfortable, not maximum |
| Fresh static logo retention | RGB cycle | 10-20 minutes | Moderate brightness |
| Single colored stuck LCD pixel | Static or Hybrid | 5-15 minutes | Normal desktop brightness |
| Old permanent burn-in | Hybrid for diagnosis only | 5 minutes | Avoid long high-brightness runs |
| Dead black pixel | Not recommended as a repair | Inspect only | No pixel exerciser can guarantee recovery |
Use short sessions first
A long flashing session is not automatically better. If a mark is temporary, you often see some change after a short pass. If nothing changes after a sensible trial and a normal panel refresh routine, the issue may be permanent wear or a hardware defect.# Choosing RGB Cycle, White Noise, or Hybrid Mode
Different artifacts respond to different patterns. A red-green-blue cycle exercises the primary subpixels in a controlled sequence. White noise rapidly alternates luminance across many small areas, which can help expose and exercise isolated stuck pixels. Hybrid mode alternates between both, making it the best first choice when you are unsure whether the problem is image retention or a lazy subpixel.| Mode | What It Does | Best For | Watch For |
|---|---|---|---|
| RGB cycle | Full-screen primary and high-contrast fields | OLED retention and color-channel inspection | Visible flashing |
| White noise | Random black-to-white static across the panel | Single stuck pixels and tiny clusters | Higher visual intensity |
| Hybrid | Alternates color fields and static | General OLED burn-in fixer workflow | Use a short timer first |
Online pixel exerciser: realistic benefits and limits
- Runs instantly in the browser without installing software or loading video files.
- Fullscreen canvas covers the display with generated RGB and static frames.
- Useful for first-pass diagnosis before trying manufacturer panel maintenance routines.
- Cannot reverse permanent OLED material wear or physical panel damage.
- Browser timing, device performance, and fullscreen support can affect animation consistency.
- Should not replace warranty service for new panels with obvious defects.
# OLED-Specific Guidance
OLED pixels emit their own light. When a static element remains on screen for many hours, the subpixels under that element can age at a different rate. That is why burn-in often follows the shape of TV channel logos, phone status bars, navigation buttons, game HUDs, streaming app sidebars, or desktop taskbars. A pixel exerciser can make temporary retention fade faster, but permanent differential aging remains a material issue.Check built in panel care first
- If the ghost image is new, let the display show varied content or rest before assuming permanent burn-in.
- If the mark matches a years-old static logo, a pixel exerciser is unlikely to remove it completely.
- If the panel has a built-in refresh cycle, run it only as often as the manufacturer recommends.
- Avoid running maximum brightness test patterns for hours; heat and brightness contribute to wear.
- Hide taskbars, enable screen savers, and reduce static UI brightness to prevent recurrence.
# LCD Stuck Pixel Guidance
LCD panels do not burn in the same way as OLED panels, but they can show stuck pixels, pressure marks, panel defects, and temporary image persistence. A stuck pixel that remains red, green, blue, cyan, magenta, yellow, or white may be caused by a subpixel failing to switch correctly. Rapid changes can sometimes help, although there is no guaranteed online repair.Dead pixel versus stuck pixel
Before using pressure or physical methods
# Why Canvas Is Better Than a Heavy Repair Video
A video-based burn-in fixer has to download encoded frames, decode them, scale them to the screen, and hope the compression did not soften the exact transitions. This tool generates each frame directly in the browser. The RGB fields are solid, the noise is created for the current canvas size, and the page avoids large media files that would slow loading or reduce PageSpeed.- No external video file means faster first render and less network dependency.
- Canvas output scales to the fullscreen surface instead of being limited by a video resolution.
- The timer can stop the repair automatically instead of looping a video forever.
- Mode, speed, duration, and intensity can change without loading another asset.