Screen testing guides
Plain-language explainers for every defect the tools detect — what it is, whether it is fixable, and what your warranty actually covers.
How to use the guides
Start from what you see, not from what you fear. A black dot on every color is a dead pixel — read the dead pixel vs stuck pixel guide before trying any fix. A trail behind moving objects is ghosting — read the ghosting guide, because the most common cure is a settings change, not a new monitor. A glowing patch in the corners on dark scenes is backlight bleed — read the bleed guide for the dark-room rule that separates normal panel character from a return-worthy defect.
Every guide pairs with a test: run the test first, read the guide second, and you will know within minutes whether you are looking at a warranty claim, a free fix, or a perfectly healthy panel that marketing made you doubt. All twelve tests are one click away from any guide, and none of them require anything more than the browser you are reading this in.