Samsung Series 9 Windows Laptops Benutzerhandbuch

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Appendix
80
LCD bad pixels
Samsung observes strict specifications regarding the quality 
and reliability of the LCD. However, there is a small chance that 
a few pixels may be bad. A large number of bad pixels can cause 
problems with the display, but a small number of bad pixels 
does not generally affect computer performance.
Samsung’s quality standards for bad pixels are as follows:
•  Bright dot: 2 or fewer
•  Black dot: 4 or fewer
•  Combination (bright and dark): 4 or fewer
Clean the LCD screen with a soft cloth dampened with 
computer cleansing detergent.
Do not use excessive force. Doing so may damage the LCD screen.