Schermtest
Inspecteer uw schermresolutie, pixelverhouding, oriëntatie en kleurdiepte en voer vervolgens dode-pixel- en gradiëntpatronen op volledig scherm uit.
Testinterface
Uw browser kan om toestemming vragen nadat u op Start heeft gedrukt.Patronen testen
Gebruik de testpatronen om te zoeken naar dode pixels, strepen, ongelijkmatige achtergrondverlichting en kleurproblemen. Druk op Escape om de modus Volledig scherm te verlaten.
Hoe u dit hulpmiddel kunt gebruiken
- Read the reported screen and viewport values.
- Use the test patterns to inspect for stuck or dead pixels.
- Press Escape to leave a full-screen pattern.
- Optional: start a screen recording, capture a short clip, and stop it to release the capture.
Advertentie
Technische uitleg
The page reads window.screen properties and visualViewport dimensions. CSS pixels differ from physical pixels, so devicePixelRatio is shown separately. Browser privacy protections may reduce precision or hide values.
Dead-pixel patterns are solid colours that make defective subpixels easier to see. A screen recording captures the browser compositor output, not the physical panel.
Problemen oplossen
Resolution looks lower than expected
Browser zoom, display scaling, and privacy protections affect reported CSS values. Physical resolution may not be exposed.
Full-screen does not open
The Fullscreen API requires a user gesture and may be blocked by embedded browsers.
Screen recording is unavailable
Some browsers or managed devices disable getDisplayMedia.
Colours look inaccurate
Colour profiles and HDR modes affect rendering. This tool cannot calibrate a display.
Gerelateerde hulpmiddelen
Veelgestelde vragen
Advertentie