US Patent No. 9,967,992

PCB FIXING MECHANISM AND LIQUID CRYSTAL DISPLAY DEVICE


Patent No. 9,967,992
Issue Date May 08, 2018
Title Pcb Fixing Mechanism And Liquid Crystal Display Device
Inventorship Xiaoyu Huang, Shenzhen (CN)
Assignee SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Shenzhen, Guangd...

Claim of US Patent No. 9,967,992

1. A printed circuit board (PCB) fixing mechanism, comprising a back plate, a PCB mounted on back plate, annular conducting foam binding the PCB, a conductive adhesive located between the annular conducting foam and the back plate, a PCB hood to covering the PCB at an upper side of the back plate;wherein the annular conducting foam is bonded to the back plate with the conductive adhesive, and the PCB fit in the annular conducting foam is fixed on the back plate;
the PCB comprises a grounding region, the annular conducting foam and the PCB grounding region of the PCB are electrically connected; and
a gap between a top of the PCB hood and the PCB is less than a thickness of a portion of the annular conducting foam that is located between the PCB hood and the PCB in an un compressed condition, such that the PCB grounding is enhanced by compressing the annular conducting foam with the PCB hood.