Huawei imagined a piezoelectric touch panel

huawei patent touchpad ceramic piezoelectric touch panel

One of the most active brands in the field of patents is undoubtedly Huawei. In addition to the countless devices that it launches often and willingly, the Chinese giant often engages in technology which then encloses in a patent, such as the piezoelectric touchpad in ceramic.

Huawei: this is how the piezoelectric touchpad works

huawei patent touchpad ceramic piezoelectric touch panel 2

Before illustrating the patent, we must first explain a little of the principles of the piezoelectricity. It concerns the ability of crystalline materials to polarize, generating a potential difference once subjected to mechanical deformation and at the same time being able to deform when subjected to electrical voltage. In other words, a material that can be used to create this effect is ceramic.

And it is the ceramic that is the protagonist of the two layers (one in metal) of touchpad of patent di Huawei. In fact, touching that layer, generating a sort of deformation of the same, leading to generate two different charge poles. In other words, one layer would be negatively charged and the other positively.

Applying such a technology for example to the trackpad of a notebook or to the same display of a tablet, it could simplify the structure of the touch module but also improve the vibration feedback in other uses, all thanks to this application not common for consumer electronics if not for phone microphones.

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