LCD Brightness Control

You can adjust the LCD brightness in 8 levels.

Before You Start!

The LCD brightness is the brightest (Level 8) when the computer is running on AC power, and it becomes dimmer when running on battery power.

Controlling the Brightness Using the Keyboard

You can use the screen brightness control keys after installing Windows and Easy Display Manager.

Adjust the LCD brightness by pressing the Fn +() key or the Fn +() key.

The LCD brightness can change up to 8 levels and the brightness increases by 1 level when

pressing the Fn +() key once.

Maintaining the changed LCD brightness even after turning the computer on again

To maintain the LCD brightness set by using the brightness control keys or through the Power Options, follow the procedures below.

1.Turn the computer on and press the F2 key when the SAMSUNG logo appears on the screen to enter the BIOS Setup.

2.Select the Boot menu and set the Brightness Mode Control item to User Control.

3.Press the F10 key to save the settings and exit Setup.

LCD bad pixels principle of laptop computer

Samsung observes the specifications regarding strict quality and reliability of LCD

But in spite of that, it is inevitable that there might be a small number of bad pixels. A large number of bad pixels can cause problems in appearance, but a small number of pixels doesn't affect the computer performance.

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.

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Samsung NP-Q428-DT02VN, NP-Q428-DS05VN manual LCD Brightness Control, Controlling the Brightness Using the Keyboard