Ultra-thin optical under-screen fingerprint identification device, an identification method and electronic equipment thereof

Abstract

The invention relates to an ultra-thin optical under-screen fingerprint identification device, an identification method and electronic equipment thereof. The ultra-thin optical under-screen fingerprint identification device comprises an OLED screen, an optical imaging structure and a fingerprint image processor which are fixedly arranged in sequence from top to bottom, the OLED screen emits lightin a self-luminous mode, the light is transmitted to the optical imaging structure through reflection, the optical imaging structure collects reflected light and outputs the reflected light to the fingerprint image processor, and the fingerprint image processor processes the light collected by the optical imaging structure and outputs a fingerprint image for recognition. By combining the self-luminous advantage of the OLED screen and the special structure of the optical imaging structure, the height of the fingerprint module is greatly reduced, the space is saved for the battery component of the terminal mobile phone, and the endurance of the mobile phone is improved; for an OLED screen, fingerprint acquisition can be realized even if a light source is not additionally arranged, the service life of the screen is prolonged, and the use experience of a terminal product is improved.

Description

technical field [0001] The invention belongs to the field of electronics, in particular to an ultra-thin optical screen fingerprint identification device and identification method and electronic equipment thereof. Background technique [0002] With the rapid development of mobile communication technology and intelligent terminals, identification technologies such as fingerprints are currently the most mature and cheap biometric identification technologies. Nowadays, biometric technology has been widely used in the field of smart phones, and the range of users of biometric technology is getting wider and wider. In daily life, fingerprint recognition is used to unlock mobile phones, make financial payments, and ensure transaction security. Due to its mature technology and high security, fingerprint recognition is widely used in terminal equipment. [0003] With the development of the times, major smartphone manufacturers are developing full-screen displays. In order to increa...

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Problems solved by technology

[0003] With the development of the times, major smartphone manufacturers are developing full-screen displays. In order to increase the screen-to-body ratio, fingerprint unlocking has to be placed on other parts of the phone except the screen, and the fingerprint under the screen has become an optimal solution. , the thickness of the fingerprint under the traditional screen is relatively thick. Under the trend of ultra-thin mobile phones, it takes up the space of the battery, resulting in poor battery life. In addition, the traditional solution requires the screen at the fingerprint to be always on, which greatly reduces the service life of the screen.

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