Xiaomi mobile phone obtains full-screen fingerprint recognition patent authorization

The information shows that on January 4, Beijing Xiaomi Mobile Software Co., Ltd. obtained the patent authorization of "a full-screen fingerprint identification device, display device, and terminal". The summary showed that the full-screen fingerprint identification device includes a controller, fingerprint identification components, and fingerprint light source. The device uses direct infrared LEDs to change the full-screen fingerprint recognition light source to infrared light, which is separated from the original display light source. The fingerprint recognition sensor only receives infrared light. In addition, when performing fingerprint recognition, only the infrared LED in the fingerprint area can be turned on, and the surrounding infrared LEDs can be turned off.

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