BLACK SCREEN TEST β€” 30 Minutes 4K UHD | Dead Pixel & Brightness Check

TrueBlack Lab

TrueBlack Lab

1,040 views

Black Screen Test 4K for OLED, LED, and LCD displays to detect dead pixels, stuck pixels, and backlight bleed.

Full-screen 30-minute video for fast and precise monitor and TV diagnostics.
Quickly check brightness uniformity and panel performance.

Why Black Screen Testing:
β€’ Spot dead or stuck pixels instantly.
β€’ Identify backlight bleed and panel inconsistencies.
β€’ Ensure your display is fully functional.

πŸ›  How to Use:
1. Play in 4K fullscreen.
2. Turn off Sleep Mode / Screen Savers.
3. Monitor for the full 30 minutes.

πŸ“Š Specs:
Color: Black | 4K UHD | 30 Minutes | 30 FPS | Silent

πŸ”— Full Suite:
➜ "[4K] ⚑ QUICK 30-Minute Screen Tests (11 Colors)"

Black Screen Test 4K | Dead Pixel Detection | Brightness Check | OLED LED LCD | Full-Screen Diagnostic