AUTOMATIC RESET CIRCUIT OF DISPLAY DEVICE

摘要

PURPOSE: Automatic reset circuit of a display device automatically resets a microcomputer without turning off a monitor's soft power key or a power code in case that the microcomputer mounted into the display device is latched up. CONSTITUTION: A microcomputer(10) generates a reference oscillation signal and a phase regulation signal for a monitor screen control. A reset circuit(20) generates a reset signal to a microcomputer when a power-supply voltage drops below a predetermined level. A reset controller(30) converts a signal level which is applied to a reset terminal of a microcomputer of a reset circuit in case of a latch-up state to a low level, thereby the microcomputer is reset. Accordingly, the automatic reset circuit of a display device automatically resets a microcomputer without turning off a monitor's soft power key or a power code in case that the microcomputer mounted into the display device is latched up.