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1. (WO2018177238) STATIC ELECTRICITY PROTECTION CIRCUIT, CIRCUIT BOARD AND STATIC ELECTRICITY PROTECTION METHOD

Pub. No.:    WO/2018/177238    International Application No.:    PCT/CN2018/080449
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Tue Mar 27 01:59:59 CEST 2018
IPC: H02H 9/04
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
京东方科技集团股份有限公司
BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
北京京东方光电科技有限公司
Inventors: LI, Pengtao
李鹏涛
LIU, Ying
刘颖
YU, Yangbing
于杨冰
YU, Jie
于洁
TAN, Qin
谭琴
Title: STATIC ELECTRICITY PROTECTION CIRCUIT, CIRCUIT BOARD AND STATIC ELECTRICITY PROTECTION METHOD
Abstract:
Disclosed are a static electricity protection circuit, a circuit board and a static electricity protection method. The static electricity protection circuit comprises a first relay (101) and a second relay (102), wherein control ends of the first relay and the second relay are respectively connected to a power supply (104) of a system circuit (103); the first relay and the second relay are connected in series between the system circuit and a grounding end (105) to form an electric charge release passage; and the first relay switches, when the system circuit is powered off, from an open-circuit state to a short-circuit state, and the electric charge release passage is in a conducting state after the first relay switches to the short-circuit state, so as to release electrostatic charges in the system circuit.