# Screen & Display

Screen tests fill the display with solid colors, gradients and moving patterns so faults become easy to see. A smooth gradient shows banding as visible steps, a black screen in a dark room reveals backlight bleed at the edges, and a moving pattern helps confirm the refresh rate.

## Tools

- Dead Pixel Test (Coming soon): Fill the screen with solid colors to spot dead, stuck or hot pixels on a monitor or phone.

---

Category: [Device Tests](https://techolm.com/device-tests)