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A fingerprint identification device, method and mobile terminal

A technology of fingerprint identification and fingerprint identification module, applied in the field of communication, to solve the function of fingerprint identification and reduce loss

Active Publication Date: 2019-02-15
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a fingerprint identification device, method, and mobile terminal to solve the problem that the fingerprint identification function cannot be realized at the position of the curved surface by using the ultrasonic fingerprint identification module

Method used

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  • A fingerprint identification device, method and mobile terminal
  • A fingerprint identification device, method and mobile terminal
  • A fingerprint identification device, method and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The back cover provided in this embodiment can be applied to mobile terminals, including but not limited to mobile phones, tablet computers and other devices.

[0024] refer to figure 1 , shows a schematic structural diagram of a fingerprint identification device in an embodiment of the present invention.

[0025] The fingerprint identification device includes: a curved cover 101 , an ultrasonic fingerprint identification module 102 and a filling medium 103 .

[0026] Wherein, the outer surface of the curved cover 101 can be in contact with the user's fingerprint, so that the device can identify the fingerprint. The ultrasonic fingerprint identification module 102 is located on the inner surface side of the curved cover 101 and is used for identifying fingerprints by emitting ultrasonic signals and receiving reflected ultrasonic signals. Specifically, after receiving the reflected ultrasonic signal, the ultrasonic fingerprint recognition module 102 can analyze the ref...

Embodiment 2

[0032] refer to figure 2 , shows a schematic structural diagram of another fingerprint identification device in an embodiment of the present invention. The fingerprint identification device provided in this embodiment is a preferred embodiment with a calibration function based on the first embodiment.

[0033] The fingerprint identification device specifically includes: a curved cover 101 , a curved display panel 104 , an ultrasonic fingerprint identification module 102 and a filling medium 103 .

[0034] Wherein, the curved display panel 104 is located between the curved cover plate 101 and the filling medium 103, and the curved display panel 104 can be an organic light-emitting diode (Organic Light-Emitting Diode, OLED) panel or a liquid crystal display panel, etc. The displayed panel. The filling medium 103 located between the curved display panel 104 and the ultrasonic fingerprint identification module 102 can be selected from a material with a sound resistance coefficie...

Embodiment 3

[0042] An embodiment of the present invention provides a mobile terminal using the fingerprint identification device described in the above embodiments. Then the mobile terminal includes a device body and a fingerprint identification device.

[0043] The fingerprint identification device includes: a curved cover plate, an ultrasonic fingerprint identification module and a filling medium.

[0044] Wherein, the outer surface of the curved cover can be in contact with the user's finger. The ultrasonic fingerprint identification module is located on the inner surface side of the curved cover, and is used to identify fingerprints by transmitting ultrasonic signals and receiving reflected ultrasonic signals.

[0045] The filling medium is located between the curved surface cover plate and the ultrasonic fingerprint recognition module, and the difference between the acoustic resistance coefficient of the filling medium and the acoustic resistance coefficient of the curved surface co...

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Abstract

The embodiment of the present invention discloses a fingerprint identification device, method and mobile terminal, wherein the fingerprint identification device includes: a curved cover, an ultrasonic fingerprint identification module and a filling medium, and the ultrasonic fingerprint identification module is located on the inner surface of the curved cover. On the side, the filling medium is located between the curved cover plate and the ultrasonic fingerprint identification module, and the ultrasonic fingerprint identification module is used to identify fingerprints by transmitting ultrasonic signals and receiving reflected ultrasonic signals. This effectively reduces the loss of the ultrasonic signals emitted by the ultrasonic fingerprint recognition module when it is transmitted between different media, and solves the problem that the ultrasonic fingerprint recognition module cannot be used to realize the fingerprint recognition function on the curved surface in mobile terminals with curved screens.

Description

technical field [0001] The embodiments of the present invention relate to the communication field, and in particular, to a fingerprint identification device, method and mobile terminal. Background technique [0002] At present, the application of fingerprint identification function on mobile terminals is becoming more and more common, for example, for functions such as unlocking and payment, and it is used very frequently. With the development of fingerprint recognition technology and the reduction of the cost of fingerprint recognition modules, the fingerprint recognition function has become the standard configuration of high-end mobile phones, and even many low-end mobile phones are equipped with fingerprint recognition functions. [0003] At the same time, with the development of display technology, more and more mobile terminals are equipped with curved cover panels as highlights. The mobile terminal with a curved cover screen, as the name suggests, refers to the fact t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06V40/1306
Inventor 叶金山熊年登
Owner VIVO MOBILE COMM CO LTD
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