75% Gray Screen Test (Light Gray) – 1 Hour | Bright Uniformity & Calibration Check | 4K
Автор: ScreenFix Lab
Загружено: 2026-01-09
Просмотров: 39
A professional 75% gray screen test video (1 Hour) in 4K UHD resolution.
Designed to evaluate bright-level screen uniformity, detect clouding, vignetting, and banding, and analyze panel performance in near-white conditions.
🟤 WHY USE A 75% GRAY SCREEN?
75% gray (light gray) is ideal for identifying brightness inconsistencies that are often hidden on pure white screens.
• Bright Uniformity Test – Detect uneven brightness across the panel
• Clouding & Vignetting – Reveal light bleed and edge darkening
• Banding Test – Check for vertical or horizontal bands
• Panel Quality Check – Evaluate LCD, IPS, VA, Mini-LED, and OLED displays
• Dead / Stuck Pixel Check – Some pixel issues are more visible on light gray
⚙️ TECHNICAL SPECS
• Color: 75% Gray (Light Gray)
• RGB Code: 192, 192, 192
• Hex Code: #C0C0C0
• Resolution: 3840 × 2160 (4K UHD)
• Duration: 1 Hour
• Audio: Silent (No Sound)
📌 INSTRUCTIONS
Clean your screen surface
Switch to full screen mode
Use a dim or dark room
Observe for brightness variation, banding, or clouding
⚠️ DISCLAIMER
This video is a digital test tool. It cannot repair hardware defects, but helps identify display panel issues accurately.
Keywords:
75% gray screen, light gray screen test, bright uniformity test, clouding test, banding test, screen uniformity check, monitor test gray, 1 hour gray screen, 4K display test
#ScreenFixLab #GrayScreen #UniformityTest #CloudingTest #BandingTest #MonitorTest #4K
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