Display Test - ApexCheck

Our display test tool provides a comprehensive evaluation of your screen's performance, helping you understand various technical specifications. With an easy-to-use interface, you can quickly test your monitor's resolution, refresh rate, dead pixels, and color accuracy.

- Real-time display basic information - Accurate resolution and refresh rate detection - Multi-color dead pixel detection - Professional color accuracy and grayscale testing - Fullscreen detection mode support - Compatible with various display types

1. Open the display test page; basic information will be shown automatically. 2. Click "Test Now" to view detailed resolution information. 3. Adjust the refresh rate slider and observe screen flickering. 4. Use dead pixel detection and switch colors to find screen defects. 5. View grayscale and color gradient tests to evaluate display performance. 6. Click "Reset Detection" to restart testing if needed.

This tool uses JavaScript screen APIs and CSS animation technology, running directly in your browser without any software installation. Test results are based on screen information provided by the browser and visual tests, serving as reference indicators for display performance.

- Quality testing after purchasing a new monitor - Regular checks for display performance changes - Gamers optimizing display settings - Designers evaluating color accuracy - Office users ensuring display quality

Q: Are the test results accurate? A: They are best-effort and based on what the browser can read or measure. Use them as a reference; hardware tools are needed for professional calibration. Q: Which browsers are supported? A: Modern browsers like Chrome, Edge, Firefox, and Safari. Q: Why do some values differ from my OS settings? A: The browser reports viewport and device metrics and may be affected by DPI scaling, fullscreen mode, power saving, and background throttling. Q: How long does dead pixel detection take? A: Take your time. Scan each solid color for 10-15 seconds, longer on large panels, and check edges and corners. Q: Is it safe for OLED? A: Yes for normal testing, but avoid leaving a static bright screen for a long time. Q: Can multiple displays be tested? A: This page focuses on the current display. To test another monitor, move the browser window to that monitor and rerun the tests.