Xiaomi full-screen fingerprint patent exposure: using infrared light for identification

Abstract: January 10 news, according to the sky eye check data, Xiaomi recently a full-screen fingerprint patent was exposed. The patent shows that the full-screen fingerprint recognition scheme comprises a controller and a fingerprint recognition component connected to the controller, a fingerprint light source.

News on January 10, according to the data of The Eye of Heaven, Xiaomi has recently been exposed for a full-screen fingerprint patent. The patent shows that the full-screen fingerprint recognition scheme comprises a controller and a fingerprint recognition component connected to the controller, a fingerprint light source.

Wherein the fingerprint light source is used to emit infrared detection light to the fingerprint area, the fingerprint recognition component, for identifying the fingerprint area and receiving infrared detection light, and the formation of fingerprint information, the controller, for controlling the fingerprint area of the fingerprint light source on, the non-fingerprint area of the fingerprint light source off. It uses a straight-down infrared LED to change the identification light source of the full-screen fingerprint to infrared light, which is separated from the original display light source, and the fingerprint recognition sensor only receives infrared light.

When fingerprint recognition is performed, when the fingerprint touches the screen, only the infrared LED in the fingerprint area can be turned on, and the surrounding infrared LED can be turned off.

Compared with the screen fingerprint recognition scheme on the market, the unlock area of the full-screen fingerprint is larger, and it does not pick the posture, which can be called the ultimate solution for screen fingerprinting.

However, the application of Xiaomi's patent does not mean that the full-screen fingerprint recognition solution will definitely be commercialized on Xiaomi mobile phones. In addition, Xin Zhixun also noted that as early as a few years ago, Apple also applied for a similar fingerprint recognition patent.

Editor: Xin ZhiXun - Lin Zi