Samsung Galaxy Book 3 User Manual page 102

Usage notices
Display bad pixels
Samsung observes strict specifications regarding the quality
and reliability of the display. 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 display screen with a soft cloth dampened with
computer cleansing detergent.
Do not use excessive force. Doing so may damage the display
screen.
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