You may need to provide the display serial number or other
information, such as the monitor resolution mode or backlight
working time, to HP Support technicians to help them serve you
better during a Support call.
The backlight hours refers to the elapsed time of usage for the light
behind the display screen. The expected lifespan of the backlight is
approximately 25,000 to 30,000 hours. At some point after the
maximum usage time of the backlight has been exceeded, you may
notice a decrease in brightness of up to 50%. At this point, the
backlight needs to be replaced to restore full brightness.
The backlight can be replaced only by a trained
technician. Please contact the HP Support Center
for assistance. Do not attempt to replace the
Do not use a screen saver with the LCD monitor, as the
backlight is used. It is recommended that you enable an
automatic power saving mode, or switch off the monitor
when not in use.
To view the serial number, resolution mode, or working time:
Open the Information setting screen. See Using the On Screen Display
. The current and recommended resolution
mode, the serial number, the total monitor working time, and
backlight working time displays.
Figure : Information setting screen
After viewing the information you can either choose Exit sub-menu
and press the Select button to return to the OSD Main Menu and
make adjustments to other settings, or press the Menu button to