Service manual
C20
Condential
6-1
Chapter 6
EDID Upgrade
6-1 EDID Introduction
Extended Display Identication Data is a VESA standard data format that contains basic
information about a display device and its capabilities, including vendor information,
maximum image size, color characteristics, factory pre-set timings, frequency range limits,
and character strings for the monitor name and serial number.
The information is stored in the display and used to communicate with the system through
a Display Data Channel (DDC), which sites between the display device and the PC
graphics adapter. The system uses this information for conguration purposes, so the
monitor and system can work together.