Screen Burn-In Test: Free OLED Burn-In Check Online
Screen Burn-In Test. Click Start Burn-In Test to run this burn in test and look for faint ghost images left on your OLED or LCD screen. The quickest way to test your refresh rate accurately is the live frame counter, which updates every second.
Interactive Tool
Run this burn-in test to cycle through detection test colors — gray 50% works best — fullscreen and scan for faint ghost images of taskbars, logos, or nav bars burned into your OLED or AMOLED panel.
Bought a used OLED TV, or noticed a shadow of your taskbar that won't go away? A burn-in test fills your display with solid colors, gray steps and moving patterns so that uneven pixel aging, dead pixels and poor uniformity have nowhere to hide. Five minutes of this OLED burn-in check tells you whether you're looking at a permanent mark, a temporary ghost or a factory flaw, and what to do about each.
What Screen Burn-In Looks Like on Your Display
Screen burn-in is a faint outline of something that used to sit still on the screen: a clock, a scoreboard, a row of icons. It shows up as patchy discoloration that stays put when the picture changes. Not every ghost image is burn-in, though, and telling the three causes apart is the whole point of the test. The lcd screen tester tests red, green, blue, white, and black screens to catch all pixel defect types in one session.
Permanent Burn-In and OLED Pixel Wear
Each OLED pixel makes its own light from organic compounds that dim a little with every hour of use. When one area works harder than its neighbours, it ages faster and ends up darker or tinted. That's permanent burn-in: the material itself has worn, so no pattern or setting can bring those pixels back to match the rest.
Temporary Image Retention That Fades
Temporary image retention looks similar but lives in the electronics, not the material. After a static window sits on screen for a long session, a faint copy lingers once you switch away, then fades within minutes to a few hours. LCD panels show it too, along with motion ghosting, which is a separate response-time effect.
Mura and the Dirty Screen Effect
Some panels leave the factory with blotchy patches, called mura or the dirty screen effect. They're easiest to see on a dim gray background, where they appear as cloudy uneven brightness. These are manufacturing defects rather than wear, so they're present from day one and don't track any on-screen element.
Why OLED Burn-In Happens
OLED burn-in comes from static images held at high brightness for long stretches. Brightness matters as much as time: a logo shown at full output wears that area several times faster than the same image at a moderate setting. Use the pixel density calculator to evaluate whether an upgrade from 1080p to 1440p on the same monitor size delivers a noticeable sharpness gain.
Phone, TV and Monitor Hot Spots
Where you look depends on the device, because each one has its own fixed elements:
- AMOLED phone: the status bar along the top and the navigation bar or gesture strip at the bottom.
- TV: channel logos in a corner, news tickers, sports scoreboards and burned-in subtitles positions.
- Gaming screens: game HUDs such as health bars, minimaps and ammo counters.
- Desktop monitor: the taskbar, a pinned browser toolbar and app sidebars.
Check those exact spots first. A single network logo that sat on screen for months is the classic culprit.
How to Run an OLED Burn-In Test
Here's a five-minute routine that works on any OLED or backlit screen. Do the steps in order, because each one rules something out before the next.
Set Up a Dark Room and Fullscreen View
Wipe the glass, dim the lights and close the blinds. A dark room matters because ambient light washes out subtle differences. Then switch the pattern to fullscreen so no browser bar or window border breaks the field; most testers support keyboard shortcuts such as F for fullscreen and arrow keys to change colors.
Step Through Grayscale Levels
Gray is where wear shows most clearly, because every sub-pixel is lit at the same low level. Look at a few steps rather than one:
- 10% gray (RGB 26, 26, 26): blotches and clouding just above black.
- 20% gray (RGB 51, 51, 51): the most revealing level for light wear.
- 50% gray (RGB 128, 128, 128): broad grayscale tint and uniformity.
Confirm the Remnant Across Colors
Spotted something? Switch to red, green, blue and white. A remnant that stays in the same place across at least two colors is real wear; one that shows on a single color usually comes down to color shifts in the screen's own tint. Dots that stay black are dead; dots stuck on one bright color are stuck pixels, a separate fault from burn-in.
Burn-In Check Test Modes and Test Patterns
A good tester offers several test modes because each test pattern exposes a different fault. Bright full-screen flashes can be uncomfortable, and anyone with photosensitive epilepsy should skip the fast-cycling modes.
Solid Color Rotation
A slow color cycling pass through white, black, red, green and blue is the foundation. White makes dark burn-in marks clear and dead dots obvious, while black is the one that exposes a bright stuck dot and, on LCDs, glow. Red, green and blue each catch a worn sub-pixel color. Hold each solid color for ten to fifteen seconds so your eyes adjust.
Sliding Color Bars and Checkerboard Inversion
Sliding color bars move across the screen at a steady pace, and a burned area makes the bar change shade as it passes over it, which is easier to catch than a still field. A black-and-white checkerboard that flips back and forth highlights areas that respond unevenly.
Gradient Sweep for Uniformity and Banding
A gradient sweep runs a smooth black-to-white ramp across the screen. Any wear or uneven output shows up as a kink in the ramp, and visible steps or banding point to limited color depth rather than burn-in.
Using an OLED Burn-In Check on a Refurbished Ultrawide
The decision is simple: keep or return a refurbished 34-inch QD-OLED ultrawide (3440 × 1440) bought from an outlet store with a 30-day return policy. It's day 6. The on-screen menu reports 3,284 power-on hours, and the previous owner clearly worked on it all day. The answer, it turns out, is return it, because the check finds real wear along the bottom edge.
I start with the room dark and the pattern fullscreen. At 50% gray (RGB 128) the panel looks perfect, which is exactly the trap. Dropping to 20% gray (RGB 51) shows a darker band across the full width at the very bottom. I measure it with a ruler against the glass: about 1.1 cm tall.
That number is worth checking against something. The screen is 33.3 cm tall for 1,440 rows, so each row is 0.023 cm. A Windows taskbar at 100% scaling is 48 px, which works out to 48 ÷ 1,440 × 33.3 = 1.11 cm, a match for the band. At 125% scaling it would be 60 px, or 1.39 cm, so the old owner ran the default scale with the taskbar always visible.
| Check | Band visible? |
|---|---|
| 50% gray | No |
| 20% gray | Yes, 1.1 cm |
| Green and blue | Yes |
| Red | Barely |
| 20% gray after the monitor's pixel refresh | Yes, unchanged |
The band shows on two colors, so by the two-color rule it's wear, not a tint quirk. To rule out short-term retention, I run the monitor's own refresh cycle, leave it off for an hour, then repeat the 20% gray screen. Nothing changes, which points to permanent burn-in rather than something that will fade.
The non-obvious lesson is the gray level. A seller who "tested the screen" on a mid-gray or white page could honestly report no burn-in on this unit; only the dim levels expose it. The judgement call: a 1.1 cm strip is invisible in most games and films, but it sits right where a taskbar or a dark-themed status line lives, and on a refurb with 24 days of return window left, that's not worth accepting. The return goes in today, and the replacement gets the same 20% gray check on arrival.
OLED vs LCD and IPS: Screen Retention Risk by Panel
Screen retention risk depends on how the panel makes light. OLED and QD-OLED pixels emit their own light, so they wear individually and carry the real burn-in risk. LCD and IPS screens use a shared backlight, so true burn-in is rare; instead you test them for short-lived image retention, backlight bleed along the edges and stuck dots. The black pattern is the key one for an LCD, and the gray steps are the key ones for an OLED. If you're checking a used device, run the same routine whatever it is, then weigh the result by display type.
Burn-In Prevention After Your Screen Test
Whatever your screen test shows, a few habits slow further wear. Burn-in prevention is mostly about reducing static content and peak output.
Pixel Refresh and Reduction Modes
Most OLED TVs run a short compensation cycle when you switch them off, plus a longer pixel refresh you can trigger by hand; LG calls it the Pixel Refresher. It evens out retention, not real wear, so run it only as often as the maker suggests. Enable pixel shift too, which nudges the image slightly to spread the load.
Brightness, Dark Mode and Auto-Sleep Habits
Keep everyday brightness around 60% or lower, use dark mode where your apps allow it, and set auto-sleep on your handset to a minute or less. On a PC, a short screen saver timeout or display-off timer stops a static desktop from sitting lit overnight. Each habit cuts the static, high-output hours that wear an OLED screen unevenly, so the strips you checked on the gray pattern age more slowly between checks.
When a Monitor Test Result Matters: Warranty and Returns
Run a monitor test the day a new screen arrives, while you're still inside the store's return window. Early faults such as dead pixels or blotchy patches are much easier to exchange than to argue later. If you find a burn-in mark, photograph it on the gray pattern with the lights off and check the warranty terms: some brands cover OLED wear for a set period, others exclude it entirely.
Burn-In Testing for PC Hardware and Electronics
The same phrase means something else in hardware work. Burn-in testing for a PC or circuit board is a stress test: the CPU, memory, drives and ports run under heavy load or high temperature for hours to expose early failures before the machine ships. It measures reliability, not image wear. If you came here to check a screen, the color patterns above are what you need; if you're validating a build or a production batch, you want load-testing software instead.
Frequently Asked Questions
- What is OLED burn-in?
- Burn-in is lasting uneven wear on an OLED screen. Pixels that show the same static element, such as a channel logo, status bar or game HUD, for long periods age faster than the rest and leave a faint shadow that stays when the picture changes.
- How does a burn-in test help?
- It fills the screen with flat colors, gray levels and moving patterns. With no picture to distract you, worn areas, stuck or dead pixels and uneven brightness stand out, and checking the same spot on two colors tells you whether it is real wear.
- Is a burn-in test safe for my screen?
- Yes. It only shows ordinary colors for a few minutes, which puts no more load on the panel than normal viewing. The flashing reduction and fast cycling modes are the exception for people with photosensitive epilepsy, who should avoid them.
- Can burn-in be fixed?
- Temporary image retention usually fades on its own, or after the display's pixel refresh or a few minutes of varied content. Permanent burn-in is physical wear of the organic material, so no pattern or video can reverse it.
- Does a burn-in test work on LCD and IPS screens?
- Yes. LCD and IPS screens rarely get permanent burn-in, but the same patterns reveal short-lived retention, stuck and dead pixels, and backlight bleed on the black screen.
- Should I test a new monitor, TV or phone?
- Yes. Run the test as soon as it arrives so dead pixels, mura or uneven brightness from the factory are found while you can still return or exchange it.
- Why should I test in a dark room?
- Room light washes out small brightness differences. With the lights off, faint marks on the dim gray and black patterns are much easier to see.
- How long does a burn-in test take?
- A full check takes about five minutes: a few gray levels, the main solid colors and a gradient, with extra time on any area that looks suspicious.