Samsung DP500A2D-K01UB - Manual (Page 64)

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Chapter 3.
Using the computer
LCD Instruction
Samsung Computer’s Defective LCD pixel management
standard
Although Samsung Electronics, Co., Ltd. observes strict
quality and confidence specifications for LCD manufacturing,
the company must inevitably allow a few defective cells in
panels due to a technological limitation of the manufacturing
process.
Therefore Samsung observes and manages the following dot
principles:
- Bright dot : 2 or less
- Black dot : 4 or less
- Combination of Bright and Dark : 4 or less
Instructions for Cleaning the LCD
Clean the LCD panel with a soft cloth lightly moistened with
computer cleansing detergent moving in one direction.
Cleaning the LCD panel with excessive force can damage the
LCD.