Dell ST2420L User Manual page 26

Language
Language option to set the OSD display to one of 6 languages (English, Espanol, Francais, Deutsch, Simplified Chinese, Japanese).
Menu Transparency
Allows you to adjust the OSD background from opaque to transparent.
Menu Timer
OSD Hold Time: Sets the amount of time the OSD will remain active after the last time you pressed a button.
Use the and buttons to adjust the slider in 5 second increments, from 5 to 60 seconds.
Menu Lock
Controls user access to adjustments. When selected, no user adjustments are allowed. All buttons are locked except the
NOTE: Lock function – Either soft lock (through OSD menu) or hard lock (Press and hold the button above power button for 10 sec)
Unlock function– Only hard unlock (Press and hold the button above power button for 10 sec)
DDC/CI
DDC/CI (Display Data Channel/Command Interface) allows your monitor parameters (brightness, color balance, etc.) to be adjustable using software on your computer. You can disable this feature by selecting "Disable".
Enable this feature for best user experience and optimum performance of your monitor.
LCD Conditioning
If an image appears to be retained on the monitor, select LCD Conditioning to help eliminate any image retention. Using the LCD Conditioning feature may take several hours. Severe cases of image retention are known as burn-in, the LCD Conditioning feature does not
remove burn-in.
Reset all OSD settings to the factory default settings.
Factory Reset
Press the button to go back to or exit the main menu.
Back
Personalize There are 2 shortcut keys on the front panel. Select one control menu for each shortcut key to allow direct access.
button.