Free TV Screen Test
Before you start
- Open this page in the TV browser or cast a laptop tab.
- Turn off energy saving and motion smoothing first.
- Look from your sofa, then up close at the edges.
Colour screens
Tap a colour to test it fullscreen
Custom colour
Your Screen Info
Detected in your browser
Shortcuts
- F Fullscreen
- → Next screen
- ← Previous
- Esc Exit
On a phone or tablet, tap to go to the next screen.
What is a TV screen test?
A TV screen test fills your television with solid colours and greys so you can check the panel. Large TVs show faults like dirty screen effect and clouding that are harder to notice on smaller screens.
Open this page in your smart TV web browser, or cast a laptop browser tab to the TV. Then look at each colour from your normal seat and from up close.
How to test your TV
1
Open it on the TV
Use the TV browser, or connect a laptop by HDMI and press F for fullscreen.
2
Turn off processing
Switch off energy saving, dynamic contrast and motion smoothing for a fair result.
3
Check each colour
Step through the colours with the remote or → key. Look for dots, bands and darker areas.
What faults look like on a TV
Darker vertical bands on grey
Dirty screen effect, common on large LED and LCD TVs, most visible in sports.
Cloudy patches on black
Clouding or backlight bleed. Check it in a dark room.
Dot that stays lit on black
A stuck or hot pixel.
Faint logo shapes on OLED
Burn-in from channel logos or game HUDs. Try the OLED screen test too.
Related tests
Monitor Screen Test
Check a new or used monitor
Laptop Screen Test
Check a laptop display
Mobile Screen Test
Check a phone or tablet screen
LCD Screen Test
Bleed, evenness and pixels on LCD
Dead Pixel Test
9 colours to find dead and stuck pixels
Backlight Bleed Test
Spot light leaking at the edges
Refresh Rate Test
Live Hz, FPS and frame time graph
Greyscale Test
Grey ramps and steps for tint and lost shades
Frequently asked questions
How do I open this on my TV?
Open the web browser app on your smart TV and type the address, or cast or connect a laptop with HDMI.
Why can I see uneven grey on my TV?
Some unevenness is normal on large panels. Big, clear bands that show in normal viewing may be worth reporting.
Can I test a TV in the store?
Yes, if the display model has a browser or you can connect your phone or laptop.
Does this test HDR?
No. It shows standard colours in your browser and cannot switch the TV into HDR mode.