To adjust the brightness
Press the button  on the front of the monitor.
Press the arrow buttons on the front control panel of your monitor to scroll through the choices. Some controls on the Main Menu, such as Contrast/Brightness, may be listed in pairs.
Press button  to toggle between control pairs after displaying a control screen.
To save the control setting and Exit the menu, press button  twice.
Brightness adjusts the background black level of the screen image. As a shortcut, you can also press one of the arrows to display the Contrast/Brightness control screen.
Note: If your monitor supports an sRGB feature, enabling that feature will disable the Contrast and Brightness.