Màn hình
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.
Đã xem lại 23 tháng 10, 2026
Bắt đầu với một bài kiểm tra nhanh
Các bước
- 1
Clean the screen first
Dust and specks look exactly like pixel faults. Wipe with a dry microfibre cloth.
- 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
Try to revive stuck pixels
Stuck pixels sometimes respond to rapid colour changes. Use the stuck pixel fixer (it flashes: read the warning).
- 4
Check the warranty
Many manufacturers publish a pixel policy saying how many faults qualify for repair. Take a photo and note the position.
Vẫn chưa được?
- Dead pixels can't be revived by software.
- A line of dead pixels usually points to a panel or cable fault, not individual pixels.
Câu hỏi
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.