Screen Test

Show fullscreen solid colors, grayscale and patterns to spot dead pixels, backlight bleed, color issues and ghosting.

Black（1 / 12）

In fullscreen: click the screen or press ← → to switch, press Esc to exit.

1. Click "Enter Fullscreen", then click the screen or press ← → to switch patterns; enable auto cycle to switch every 3 seconds.
2. On black: look for stuck bright pixels.
3. On white: look for dark / dead pixels.
4. On solid colors: check for uneven color and backlight bleed along the edges.
5. Checkerboard & grid: switch quickly and watch for ghosting, trails or blurry lines.

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