TV Screen Test Online for 4K, OLED, QLED and LCD TVs
Inspect a television for dirty screen effect, motion issues, HDR clipping, blooming, banding and color uniformity from your normal viewing distance. Use the TV's native input resolution, disable showroom enhancements, and inspect uniform fields from the same seating position used for films and games.
How to test this display step by step
What to look for during a TV Screen Test
Inspect the center, corners and edges on every pattern. Repeat suspicious results at normal brightness with automatic display adjustments off. A defect visible across colors, apps and inputs is more likely a panel issue.
Panel-specific notes
LCD zone blooming and OLED pixel behavior are different; judge both with real viewing angles and the TV's normal local-dimming mode.
Before contacting support
Repeat the result at native resolution, normal brightness and a second input or browser. Record the model, firmware, power state and a photo from normal viewing distance.
How to interpret a suspicious result
Repeat the pattern at native resolution and normal viewing distance. A dot fixed across white, black and RGB fields suggests a pixel defect; broad glow or tint that changes with angle suggests uniformity. For motion issues, compare another refresh rate and cable before judging the panel.