Apparatus and method for displaying DPMS mode status using an OSD circuit

摘要

A method of displaying a display power management signaling (DPMS) using an on screen display (OSD) in a display device includes the steps of: determining whether a sync signal is input or not; storing a DPMS state corresponding to the sync signal which is input; and driving an output port of a microcomputer to display the stored DPMS state through the OSD during a predetermined time.