A display panel and terminal device thereof

Abstract

The present invention provides a display panel, including an array substrate; wherein a TFT circuit layer and a piezoelectric thin film layer arranged on the TFT circuit layer are arranged in the array substrate. Wherein the piezoelectric film layer is electrically connected to the TFT circuit layer, and can emit an ultrasonic signal according to the received voltage signal output by the TFT circuit layer, and the ultrasonic signal emitted is reflected by the face to be identified It is received by the piezoelectric film layer, and the piezoelectric film layer converts the received ultrasonic signal into a voltage signal and sends it to the TFT circuit layer; The voltage signal of the face feature information is processed and then the processed data information is output. The present invention provides a display panel, which uses its own structure and introduces ultrasonic functional units, thereby expanding its functions, improving its functional integration, and further expanding its application range.

Description

technical field [0001] The present invention relates to the technical field of display panels, in particular, a display panel with a face recognition function and a terminal device thereof. Background technique [0002] It is known that face recognition technology has been widely used in various fields such as identity authentication, such as for improving the security of electronic products such as smart phones, computer terminals, smart tablets and access control systems. Compared with traditional digital passwords, due to the rapidity and security of face recognition, it brings a lot of convenience and security to people's lives. [0003] The initial face recognition is based on 2D face recognition with a single camera. In the subsequent use process, due to the low security of 2D face recognition, it is easy to be cracked. The industry subsequently added depth feature point measurement on the basis of 2D face recognition, and developed 3D face recognition technology. ...

AI Technical Summary

Problems solved by technology

[0005] However, since the 3D face recognition technology involves many functional devices, and it needs to be installed on the front of the electronic device for face recognition, this will destroy the aesthetics of the front of the electronic device, and the increase in functional devices also increases the Process complexity and difficulty of the entire product manufacturing process

Thereby, the cost of the product is increased to a certain extent, which is not conducive to the large-scale promotion and application of the product.

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