Screen Test: Dead Pixel Check

Screen Test is a full-screen display tester for visually checking dead pixels, stuck pixels, possible burn-in, screen colors, gradients, patterns and touch response on phones and tablets.

Use it when checking a new phone, inspecting a used device, or confirming display condition after repair. The app shows solid colors, gray levels, gradients and test patterns so you can review your screen directly.

Main features

- Full screen color test

- Dead pixel check

- Stuck pixel check

- AMOLED/OLED burn-in check helper

- Touch and multi-touch test

- Gradient and color banding check

- Grid, line, edge and pattern tests

- Quick screen check mode

- Keep screen awake option

- Korean and English support

This app is a visual screen test utility. It does not automatically diagnose hardware defects and does not repair burn-in or damaged pixels.

Run a simple full-screen display test to check dead pixels, possible burn-in, screen colors, gradients and touch response directly on your device.