Test your TV screen for dead pixels, stuck pixels, discoloration, backlight bleed and other display faults — directly in your browser, with nothing to install. Just open the full-screen test, cycle through the solid colours, and inspect the screen closely.
📺 TV Screen Test
Recommended tests for your TV
How to test your TV screen
- Clean the screen so dust and smudges are not mistaken for pixel faults.
- Turn brightness up and dim the room so faint defects stand out.
- Open the full-screen test and cycle through black, white, red, green and blue.
- Look closely for any dot that stays dark or stuck on one colour across every background.
Tips for TV screens
- Open this page in your smart-TV browser, or cast it from a phone or laptop, then go full screen.
- Sit back a normal viewing distance, then approach to confirm any suspected dead pixel.
- On OLED TVs watch for burn-in; on LED/LCD TVs check backlight clouding on the black screen.
Why test your TV screen?
Catching a faulty pixel or panel defect early makes it far easier to deal with — within a store return window or a manufacturer warranty. Whether your TV is brand new, second-hand, or just acting up, a quick test gives you a clear, objective answer.
Open the full-screen test on your TV, set brightness high, and step through the solid colours. A dead pixel stays black on every colour; a stuck pixel stays fixed on one colour. Inspect the whole screen, including the corners and edges.
Stuck pixels can sometimes be revived by rapidly cycling colours with our Pixel Fixer. A true dead pixel is a hardware fault with no software fix — in that case, check whether your TV is covered by warranty or a return policy.
It depends on the manufacturer. Some replace a screen for a single bright (stuck) pixel; others require several defective pixels before replacing the panel. Test early and keep a record so you can claim within the warranty period.