Touch structure, touch panel and electronic device

Abstract

The touch structure, touchpad, and electronic device provided in this application include a touch structure in which a cover layer contacts the user's finger or stylus. Touching the cover layer generates a touch electrical signal. In response to the excitation of this electrical signal, a piezoelectric layer vibrates, generating an excitation signal that is transmitted to the upper-level mechanism. The piezoelectric layer is made of piezoelectric glass, vibrating when energized. This vibration replaces the traditional vibration motor or several separate piezoelectric ceramic sheets, significantly reducing the space occupied and overall thickness of the structure. Furthermore, this vibration method greatly simplifies the traditional design considerations for the entire touchpad structure, making the vibration design of the touchpad almost standardized. More importantly, this method of using a single, integrated planar vibration avoids inconsistent vibration feel at different locations on the touchpad caused by different vibration motor placements, greatly improving the user's vibration feedback experience.

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