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TestLuma

स्क्रीन

Dead pixels vs stuck pixels: what's the difference?

Every pixel is made of red, green and blue sub-pixels. A dead pixel stays dark on every colour. A stuck pixel stays lit in one colour. Find them with the full-screen test above.

23 अक्टूबर 2026 को समीक्षा की गई

इस गाइड का अनुवाद अभी नहीं हुआ है, इसलिए यह अंग्रेज़ी में दिखाई गई है।

पहले एक त्वरित टेस्ट करें

चरण

  1. 1

    Clean the screen first

    Dust and specks look exactly like pixel faults. Wipe with a dry microfibre cloth.

  2. 2

    Step through the colours

    Open the dead pixel test and go through every colour. A dot that's black on white is dead. A dot that stays red, green, blue or white on black is stuck.

  3. 3

    Try to revive stuck pixels

    Stuck pixels sometimes respond to rapid colour changes. Use the stuck pixel fixer (it flashes: read the warning).

  4. 4

    Check the warranty

    Many manufacturers publish a pixel policy saying how many faults qualify for repair. Take a photo and note the position.

अब भी काम नहीं कर रहा?

  • Dead pixels can't be revived by software.
  • A line of dead pixels usually points to a panel or cable fault, not individual pixels.

प्रश्न

Can a dead pixel spread?

Usually not. Single pixel faults normally stay put. Spreading lines or patches suggest physical damage.

Should I press on a stuck pixel?

We don't recommend it. Pressure can damage the panel and void the warranty.

डिवाइस