Patent attributes
The present invention provides a key structure with electrostatic discharge protection, including a key cap; a metal support panel; a support element, connecting the key cap and the metal support panel and capable of guiding the key cap to move up and down relative to the metal support panel; and a membrane circuit board, disposed on the metal support panel. The membrane circuit board includes: a first membrane layer, having a first surface and a second surface; a second membrane layer, having a third surface and a fourth surface; and an electrostatic protection structure, including: a first conductive layer, formed on a first surface of the first membrane layer; a second conductive layer, formed between the second surface of the first membrane layer and the third surface of the second membrane layer; and a third conductive layer, formed on the fourth surface of the second membrane layer.