Скачать или смотреть Is Your 4K Screen Actually Sharp? 🛑 Resolution & Blur Test Pattern

Is your 4K TV or Monitor truly sharp, or are you looking at blurry text?
Use this Professional 4K Resolution & Eye Exam Chart to test your screen’s
text clarity, sharpness, and real pixel detail.

👁️ THE CHALLENGE
Pause the video and look at the Snellen Chart in the center.
✅ EXCELLENT: You can clearly read the bottom line (smallest text).
❌ BLURRY: The text looks fuzzy, doubled, or unreadable.

🔬 WHAT DOES THIS TEST REVEAL?
Many TVs used as PC monitors suffer from Chroma Subsampling (4:2:0),
overscan, or artificial sharpening — all of which destroy text clarity.
This test helps you detect:
• Real 4K (1:1 pixel mapping)
• Text clarity & chroma subsampling issues
• Artificial sharpness halos
• Overscan & scaling blur

⚙️ SCREENFIX LAB – TECH SPECS
• Pattern: Snellen Eye Chart + Resolution Line Pairs
• Feature: Active Focus Rings & Seamless Loop
• Resolution: Native 4K UHD (3840×2160)
• Duration: 1 Hour

Perfect for programmers, designers, and gamers using a TV as a monitor.

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