Dead or stuck pixels can appear as tiny dark or bright spots on your display. They often go unnoticed during regular use but become obvious on solid backgrounds. A dedicated dead pixel test helps you identify these imperfections quickly, so you can decide whether to seek a repair or replacement under warranty.
Our browser-based tool fills your entire screen with a series of solid colors—black, white, red, green, and blue. By cycling through these colors, you can spot pixels that fail to change color or remain permanently lit. The fullscreen mode removes all distractions, making even the smallest defects visible.
Whether you have an LCD, LED, or OLED panel, this test works directly in your browser—no downloads or installations required. It's particularly useful for OLED screens, where stuck pixels can be more noticeable due to high contrast. For a comprehensive check, pair this tool with other display diagnostics available on Black Screen.
What is the difference between a dead pixel and a stuck pixel?
A dead pixel appears black and never lights up, while a stuck pixel shows a single color (red, green, or blue) that doesn't change. This test helps you identify both types.
Can this test fix dead pixels?
No, this is purely a diagnostic tool. It cannot repair or calibrate your screen. For potential fixes, consult your device manufacturer or a professional technician.
Is this test safe for my screen?
Yes, displaying solid colors is completely safe and will not damage your display. It's a standard method used by technicians worldwide.
This visual test cannot calibrate a panel or diagnose every hardware issue. Check warranty terms before attempting any repair.
Check white, black, red, green, blue, and gray. A defect that remains in the same physical position across multiple colors is easier to distinguish from page content or dust. Black Screen emphasizes dark-field checks, OLED behavior, glow, backlight leakage, and bright pixel defects.
A dead pixel usually stays dark, while a stuck pixel remains lit in one color. This browser test helps you locate suspicious pixels but cannot determine warranty eligibility. Black Screen emphasizes dark-field checks, OLED behavior, glow, backlight leakage, and bright pixel defects.
No. It is an inspection tool only. Avoid pressure, heat, or unverified repair methods, and consult the display manufacturer's pixel policy before taking action. Black Screen emphasizes dark-field checks, OLED behavior, glow, backlight leakage, and bright pixel defects.
Yes. The page adapts to modern phones and tablets as well as laptops, monitors, and televisions. Fullscreen behavior can vary slightly by browser and operating system. Black Screen emphasizes dark-field checks, OLED behavior, glow, backlight leakage, and bright pixel defects.
Yes. blackscreen.pics provides this page without payment or account registration. Standard browser and device limitations still apply. Black Screen emphasizes dark-field checks, OLED behavior, glow, backlight leakage, and bright pixel defects.
blackscreen.pics