Device and method for improving grounding reliability of display screen

Abstract

The invention provides a device and method for improving the grounding reliability of a display screen. The device comprises a circuit board, conductive foam, a conductive fabric and a display screen,wherein the conductive foam is stuck on a ground point of the circuit board by virtue of first conductive adhesive; the conductive fabric is stuck on a backboard of the display screen by virtue of second conductive adhesive; and the conductive fabric is pasted on the conductive foam. The device provided by the invention has the advantages that the conductive fabric is arranged between the conductive foam and the backboard of the display screen, the conductive fabric is closely stuck with the backboard of the display screen together by virtue of the second conductive adhesive, a region coveredby the conductive adhesive on the backboard of the display screen is not completely blocked by an insulating oxidation film, the conductive fabric and the second conductive adhesive can conduct electricity and be grounded by virtue of a broken and leaked part on the oxidation film, reliable connection of the backboard of the display screen and the conductive fabric is realized, and the technicalproblem that a rear housing cannot be effectively grounded as the rear housing of a TFT display screen is an aluminized zinc plate in the traditional grounding manner is solved.

Description

technical field [0001] The invention relates to the technical field of TFT display screens, in particular to a device and method for improving the grounding reliability of a display screen. Background technique [0002] With the development of modern technology, building intercom has become an indispensable life scene for people. People can open the door for their guests or handle other affairs without leaving home. As a product in the security building intercom industry, video communication is becoming a basic function, and the TFT display screen has also become one of the standard components; the grounding of the TFT display screen has a significant effect on improving the electromagnetic compatibility and antistatic performance. Screen grounding has also become one of the technologies designed by engineers of major companies; commonly used TFT display screen grounding methods are: [0003] 1) Connect with a wire, one end is fixed on the circuit board, and the other end i...

AI Technical Summary

Problems solved by technology

[0008] The embodiment of the present invention provides a device and method for improving the reliability of the grounding of the display screen, which is used to solve the technical problem that the back shell of the TFT display screen cannot be effectively grounded because the back shell of the TFT display screen is made of galvanized plate in the traditional grounding method

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