OLED Screen Test
Ten full-screen patterns for OLED phones, monitors and TVs. Near-black shades show uneven dark tones, gray shows burn-in, and solid colors catch faulty pixels.
Ten full-screen colors. Click, tap or press an arrow key to move to the next one.
What does an OLED test check?
Each OLED pixel makes its own light, so the faults differ from an LCD. This is what to look for on each pattern.
How do I run a burn-in test on an OLED TV or phone?
Open this page on the screen you want to check and start the test. Skip ahead to the 20% gray screen, then the 50% gray screen, and give each one about ten seconds.
- Look for shapes that match what you show most: a channel logo, a news ticker, a game score, or a phone’s status and navigation bars.
- Check the same spot on red, green and blue. Burn-in can show more in one color, because red, green and blue sub-pixels wear at different rates.
- If you see a shape, turn the screen off for a few hours and test again. A shape that has faded was image retention, not burn-in.
On a TV, use its built-in browser, or cast this page from a phone or laptop. If you cast, set the TV to show the whole picture, not a zoomed one.
Is it burn-in or image retention?
Both leave a ghost of an old image. Image retention is temporary. It shows right after a still image has been up for a while, then fades within minutes or hours.
Burn-in is permanent wear. Pixels that showed the same bright image for hours on end age faster than their neighbors, so they stay dimmer even after time off. The screen’s pixel refresh can even out small differences, but it cannot undo heavy burn-in.
Why does near black look blotchy?
Very dark shades are the hardest for OLED pixels to show evenly, so some panels look patchy just above black. Heavy blotches you notice in dark films are worth raising with the seller.
How do I avoid burn-in?
Vary what is on screen, and avoid the same bright image for hours at a time. Use a dark theme, hide the taskbar or dock, and let the screen run its own pixel refresh when it asks. Lower brightness also slows wear.
Is a green or pink tint on dark gray normal?
A faint tint just above black is common on OLED, especially on phones at low brightness. It usually fades as you turn brightness up. If it shows at your normal setting in dark scenes, raise it with the seller.
Does an OLED flicker at low brightness?
Many OLED screens dim by switching pixels on and off very fast, called PWM. Most people never notice it, but some feel eye strain at low brightness. This test cannot show it, because the flicker is too fast to see.
Questions
Can this test cause burn-in?
No. Each pattern stays up only while you look at it. Burn-in comes from the same image staying on screen for many hours.
What brightness should I use?
Use your normal brightness for burn-in and near black. A short pass on white at full brightness can make dim patches easier to see.
Does it work on an OLED phone?
Yes, in any phone browser. On an iPhone the colors fill the browser window, because Safari does not allow full screen for web pages.
Do new OLED TVs still get burn-in?
Less often. Newer OLED TVs shift the picture by a few pixels, dim fixed logos and run refresh cycles in standby. Hours of the same still image every day can still leave a mark.
Is a YouTube burn-in test video the same?
Close, but video compression smears dark shades into blocks and bands. This page draws exact flat colors, so any patch you see is on the screen, not in the video.