Huawei discloses new "ultrasonic fingerprint" patent, expected to lead industry innovation breakthroughs

Recently, Huawei Technologies Co., Ltd. announced a high-profile "ultrasonic fingerprint" patent. The patent number is CN117058725A, and the application date is July 4, 2023. It has attracted much attention.

It is reported that this patent is called "an ultrasonic fingerprint identification module, system and electronic device". According to the patent abstract, its unique feature is that it can significantly improve the accuracy of identifying fingerprint information. In the current market, many mobile phone manufacturers mainly rely on Goodix Technology's solutions for ultrasonic fingerprint technology. However, these solutions are often difficult to bypass Qualcomm's relevant patents. The new "ultrasonic fingerprint" patent announced by Huawei this time is expected to bring new breakthroughs to the industry and pave the way for independent innovation.

According to the editor’s understanding, the specific embodiment of the patent includes an ultrasonic fingerprint recognition module, whose structure is stacked layer by layer, including common electrodes, piezoelectric layers and circuits substrate. The side of the special circuit substrate close to the piezoelectric layer is designed with multiple pixel electrode units arranged in an array. Each pixel electrode unit corresponds to a pixel and is finely divided into N first pixel electrodes and M second pixel electrodes. . When the module is in the transmitting mode, the N first pixel electrodes will be connected and work, while the M second pixel electrodes will remain in the floating state; when the module switches to the receiving mode, all the pixel electrodes will be connected and work together.

The "ultrasonic fingerprint" patent disclosed by Huawei this time demonstrates the company's strong strength in fingerprint identification technology, and also brings new thinking and enlightenment to the entire industry. In the future, we have reason to expect Huawei to launch more innovations and breakthroughs in this field.

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