The invention provides an MIPI (
Mobile Industry Processor Interface) module ESD (Electro-Static
Discharge) protection device. The MIPI module ESD protection device comprises a data and
clock abnormal state MIPI state
machine reset circuit, a combined data line frequency dividing circuit, and an MIPI integral reset circuit for data abnormal width exceeding a certain time; the three circuits are connected in parallel with one another. For the data and
clock abnormal state MIPI state
machine reset circuit, a
low speed switching to high speed
time series detection module is used for detecting whether a
low speed switching to high speed
time series exists on an MIPI data line or not, a
low speed and high speed detection module is used for detecting whether the MIPI
clock line is in a low speed state or not, and if the two conditions are satisfied at the same time, a first external MIPI switching-off module is used for switching off an MIPI module input interface of a display screen driver
chip; an MIPI state
machine reset module is used for resetting an MIPI state machine; an MIPI clock line low speed switching to high speed
time series can be automatically generated by a first clock line low speed switching to high speed
time series generation module; a first MIPI switching-on module is used for switching on the MIPI input interface again according to the reset result of the MIPI state machine and the MIPI clock line low speed switching to high speed time series, so that a function of receiving MIPI clock and data signals of a
mobile phone primary board is recovered.