OLED Screen Test
Check your OLED screen for burn-in, dead pixels, uneven areas, black-level issues, and other visible display problems.
Workflow
OLED Screen Check
Work through these checks in order on the OLED device you want to test. All tests run in your browser.
0 / 8 checked
Method
How to test your OLED screen
Set normal display settings. Use your normal picture or display mode. Avoid unusual color filters or display settings that significantly change the image.
Disable image-changing features. Temporarily disable night modes, eye-comfort settings, color filters, or similar features if enabled.
Check at normal brightness. Start with your normal viewing brightness. You can also compare the display at a few different brightness settings.
Use fullscreen patterns. Run the tests fullscreen where supported and inspect the OLED device itself.
Check gray backgrounds carefully. Gray patterns can make faint image retention and uneven areas easier to notice.
Use a dark room for black-level checks. Low ambient light makes subtle near-black differences easier to see.
Inspect the whole panel. Check the center, edges, corners, status-bar areas, navigation areas, and other locations where static content may have appeared.
Record anything unusual. Take photos or notes if testing a new or used OLED before the return period ends.
What to look for
- Dark, bright, or stuck pixels
- Faint logos, icons, bars, or other persistent marks
- Uneven gray or dark areas
- Lost near-black detail or black crush
- Uneven brightness or tint
- Visible gradient banding
- Motion trails or smearing
- Unexpected observed refresh-rate results
New vs used OLED
New OLED
Focus on dead pixels, gray uniformity, black-level behavior, brightness consistency, and obvious display defects.
Used OLED
Pay extra attention to burn-in/image retention, gray uniformity, black-level behavior, brightness consistency, and signs of previous display wear.
OLED device checks
OLED TVs
Pay particular attention to persistent logos, channel graphics, subtitle areas, and other marks that may remain visible on gray or solid-color backgrounds.
OLED Monitors
Check for image retention from desktop interfaces, taskbars, application windows, or other static elements, along with gray uniformity and near-black detail.
OLED Phones and Tablets
Check the status-bar area, navigation controls, keyboard areas, and other locations that may have displayed static content for long periods.
Explained
OLED display problems explained
Pixels that remain dark, bright, or one fixed color instead of changing with the displayed image.
Persistent image patterns caused by uneven pixel wear after prolonged display of static content. Browser testing can reveal visible marks but cannot determine their cause or permanence.
A temporary visible remnant of previous content that may fade after the image changes.
Near-black shades merging together so dark details become difficult or impossible to distinguish.
Whether a gray field appears consistent across the display without obvious darker, brighter, or tinted areas.
Smooth gradients appearing as visible steps or bands.
The configured display refresh setting compared with the browser's observed frame cadence.
Visible trails or smearing behind moving objects.
What browser testing can and cannot check
Browser tests can help you visually inspect
- Burn-in and image retention
- Dead pixels
- Gray and near-black uniformity
- Near-black detail
- Brightness behavior
- Color banding
- Motion artifacts
Browser tests cannot reliably measure
- Peak brightness or nits
- PWM frequency
- Exact response time
- Actual color accuracy or Delta-E
- Actual color-gamut coverage
- ABL performance as a measured specification
- Panel lifespan
- Exact pixel aging
- Whether an OLED panel is WOLED, QD-OLED, AMOLED, or another implementation
FAQ
OLED Screen Test FAQ
01How do I test an OLED screen?
Open this page on the OLED device and work through the eight checks in order, using fullscreen where possible.
02How do I check an OLED screen for burn-in?
Use gray and solid-color patterns and look for faint marks that remain visible when the background changes.
03How do I tell if my OLED screen has image retention?
Display varied content and check whether the mark becomes less visible over time. Fading can be consistent with temporary image retention, while a persistent mark may indicate more lasting display wear. A browser test cannot confirm permanence.
04How do I check an OLED screen for dead pixels?
Cycle through solid black, white, red, green, and blue backgrounds and look for pixels that never change.
05How do I test OLED black levels?
Use pure-black and near-black patterns in a dark room and check whether very dark shades stay distinguishable.
06How do I check OLED screen uniformity?
Use full gray fields and compare the center, edges, and corners for uneven brightness or tint.
07Can OLED burn-in be fixed?
Temporary retention may fade on its own. Persistent wear generally cannot be reversed by a browser test or software.
08How do I test an OLED TV?
Open this page with the TV browser or a connected device and pay extra attention to logos, subtitle areas, and uniformity.
09How do I test an OLED monitor?
Look for retention from taskbars and windows, then check gray uniformity and near-black detail.
10How do I test an OLED phone?
Open this page on the phone itself and check the status bar, navigation, and keyboard areas.
11Can I test an OLED screen without downloading anything?
Yes. Every check on this page runs in a browser with nothing to install.