Comprehensive screen testing suite to check for dead pixels, color accuracy, backlight bleeding, and display quality. Test your monitor, laptop, phone, or tablet display.
Test for dead, stuck, or bright pixels on your display using solid color backgrounds.
Check color reproduction and gradient smoothness across the color spectrum.
Detect backlight bleeding and uniformity issues with dark backgrounds.
Test text sharpness and readability at different sizes and font weights.
Check display scaling and geometric accuracy with shapes and lines.
Test for ghosting, motion blur, and response time issues.
Follow these simple steps to test your display comprehensively
Select from dead pixel detection, color accuracy, backlight bleeding, text clarity, geometry, or motion tests based on your needs.
Click any test to automatically enter full-screen mode for accurate testing. Clean your screen first for best results.
Use arrow keys or navigation buttons to cycle through test patterns. Look carefully for anomalies, dead pixels, or color issues.
Complete all tests and review results. Press ESC or Exit button when finished to return to the main interface.
Professional-grade display testing tools for all devices
Comprehensive solid color backgrounds (red, green, blue, black, white) to identify stuck, dead, or bright pixels with precision.
Gradient patterns and color spectrum tests to evaluate color reproduction, saturation levels, and smooth color transitions.
Dark screen patterns to detect backlight bleeding, light leakage, and brightness uniformity across the entire display.
Multiple font sizes and weights to test text clarity, anti-aliasing quality, and readability at various scaling levels.
Geometric shapes and grid patterns to verify display scaling, aspect ratio accuracy, and pixel alignment.
Moving patterns to detect ghosting, motion blur, response time issues, and refresh rate problems.
Everything you need to know about screen testing
Our screen test can detect dead pixels, stuck pixels, bright pixels, backlight bleeding, color accuracy issues, text clarity problems, geometric distortion, motion blur, ghosting, and brightness uniformity issues. It works on all display types including LCD, LED, OLED, and AMOLED screens.
For dead pixel tests, examine each color for 30-60 seconds. Color accuracy and backlight tests require 1-2 minutes each. Text clarity can be assessed in 30 seconds, while geometry tests need careful examination for 1 minute. Motion tests should run for 2-3 minutes to detect all issues.
Dead pixels appear as black dots and don't change color regardless of the displayed image. Stuck pixels remain one color (red, green, or blue) and don't respond to color changes. Bright pixels appear white or very bright and are always "on". Our tests can identify all three types.
A dark environment eliminates ambient light reflections and makes it easier to spot subtle issues like backlight bleeding, dead pixels, and color uniformity problems. Set your screen to maximum brightness and ensure no external light sources interfere with the testing process.
Yes! Our screen test works on smartphones, tablets, laptops, monitors, and TVs. The tool automatically adapts to your device's screen size and capabilities. For mobile testing, ensure auto-brightness is disabled and screen brightness is set to maximum.
For dead/stuck pixels: Try pixel fixing software or gentle pressure massage. For backlight bleeding: Check if it's within manufacturer tolerance. For color issues: Calibrate your display or check graphics driver settings. If problems persist and device is under warranty, contact the manufacturer.
Test new devices immediately to identify manufacturing defects within warranty period. For existing devices, run tests every 6-12 months or when you notice display issues. Professional users should test monthly, especially for color-critical work like photo editing or graphic design.
Yes, our screen test tool is completely free with no registration required. All features are available without limitations. No data is collected or stored during testing - everything runs locally in your browser for privacy and security.