Fingerprint identification component, electronic device and fingerprint collection method

Patent metadata

Field	Value
Publication number	US-10817697-B2
Application number	US-201816214389-A
Country	US
Kind code	B2
Filing date	Dec 10, 2018
Priority date	Nov 18, 2016
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

A fingerprint identification component is provided. The fingerprint identification component forms a micro-slit fingerprint collection region and includes a plurality of fingerprint collection modules arranged in the micro-slit fingerprint collection region. Each of the fingerprint collection modules includes a resonance transmitter and a resonance sensor. The resonance transmitter is configured to transmit a resonance signal to a fingerprint texture of a user. The resonance sensor is configured to receive the resonance signal after being reflected by the fingerprint texture, such that a fingerprint of the user can be collected or identified. An electronic device and a fingerprint collection method are also provided.

First claim

What is claimed is:

1. An electronic device, comprising:
a housing comprising a frame, a front cover, a rear cover, and a transparent cover; the front cover covering a front side of the frame; the rear cover covering a rear side of the frame; and the frame forming a resonance signal transmission region thereon; wherein the frame comprising an outer surface and an interior surface opposite to the outer surface; the frame defines a slit corresponding to the resonance signal transmission region and a receiving depression communicating with the slit, and the receiving depression is exposed in the interior surface of the frame, and the slit is exposed in the outer surface of the frame; the frame comprises a step disposed on a bottom surface of the receiving depression; wherein the transparent cover comprises an embedded portion embedded in the slit and a flange stacked on the step; the embedded portion comprises an exterior surface aligned with the exterior surface of the frame;
a main board, disposed between the front cover and the rear cover; and
a fingerprint identification component comprising:
a substrate disposed in the receiving depression, a circuit board coupled to a surface of the substrate departing away from the slit, and a plurality of fingerprint collection modules assembled onto the substrate and opposite to the slit; wherein the circuit board is coupled to the plurality of fingerprint collection modules via the substrate, and a portion of the circuit board is bent to be coupled to the main board; and each of the fingerprint collection modules having:
a resonance transmitter configured to transmit a resonance signal to pass through the resonance signal transmission region and arrive to a fingerprint texture of a user; and
a resonance sensor configured to receive the resonance signal reflected by the fingerprint texture of the user to collect or identify a fingerprint of the user.

2. The electronic device as claimed in claim 1 , wherein the fingerprint identification component further comprises a light guide lens on a side of the plurality of fingerprint collection modules to guide the resonance signals transmitted or received by fingerprint collection modules.

3. The electronic device as claimed in claim 1 , wherein the front cover covers the fingerprint identification component.

4. The electronic device as claimed in claim 1 , wherein the rear cover covers the fingerprint identification component.

5. The electronic device as claimed in claim 1 , wherein the circuit board is a flexible printed circuit board.

6. The electronic device as claimed in claim 1 , wherein the exterior surface of the embedded portion is a curved surface.

7. The electronic device as claimed in claim 1 , wherein a longitudinal direction of the slit is parallel to a longitudinal direction of the frame.

8. The electronic device as claimed in claim 1 , wherein the plurality of fingerprint collection modules are arranged in a row along a longitudinal direction of the slit.

9. The electronic device as claimed in claim 1 , wherein the resonance transmitter is a laser transmitter, and the resonance sensor is a laser sensor.

10. The electronic device as claimed in claim 1 , wherein the plurality of fingerprint collection modules are arranged in a row along a longitudinal direction of the resonance signal transmission region.

11. The fingerprint identification component as claimed in claim 10 , wherein the resonance transmitter and the resonance sensor of each of the fingerprint collecting modules are arranged in a row along the longitudinal direction of the resonance signal transmission region; and the resonance sensors of the plurality of the fingerprint collection modules are separated from each other by one resonance transmitter, and the resonance transmitters of the plurality of the fingerprint collection modules are separated from each other by one resonance sensor.

12. The fingerprint identification component as claimed in claim 1 , wherein the resonance transmitter and the resonance sensor of each of the fingerprint collecting modules are arranged either perpendicular or parallel to the longitudinal direction of the resonance signal transmission region.

13. The fingerprint identification component as claimed in claim 1 , wherein the resonance transmitters and the resonance sensors are arranged on a same plane.

14. The fingerprint identification component as claimed in claim 1 , the outer surface is a curve surface; the slit is located at a portion of a maximum curvature of the outer surface.

15. An electronic device, comprising:
a housing comprising a frame, a front cover, and a rear cover; the front cover covering a front side of the frame; the rear cover covering a rear side of the frame; and the frame forming a resonance signal transmission region thereon; wherein the frame defines a slit corresponding to the resonance signal transmission region and a receiving depression communicated with the slit, the receiving depression is exposed in an interior surface of the frame;
a main board, disposed between the front cover and the rear cover; and
a fingerprint identification component comprising a substrate disposed in the receiving depression, a circuit board coupled to a surface of the substrate departing away from the slit, and a plurality of fingerprint collection modules assembled onto the substrate and opposite to the slit; wherein the circuit board is coupled to the plurality of fingerprint collection modules via the substrate, and a portion of the circuit board is in contact with the interior surface of the frame, and another portion of the circuit board is bent to be coupled to the main board; and each of the fingerprint collection modules having:
a resonance transmitter configured to transmit a resonance signal to pass through the resonance signal transmission region and arrive to a fingerprint texture of a user; and
a resonance sensor configured to receive the resonance signal reflected by the fingerprint texture of the user to collect or identify a fingerprint of the user.

16. The electronic device as claimed in claim 15 , wherein the fingerprint identification component further comprises a light guide lens on a side of the plurality of fingerprint collection modules to guide the resonance signals transmitted or received by fingerprint collection modules.

17. The electronic device as claimed in claim 15 , wherein the housing further comprises a transparent cover embedded in the slit.

18. The electronic device as claimed in claim 17 , wherein the frame comprises a step disposed on a bottom surface of the receiving depression; the transparent cover comprises an embedded portion embedded in the slit and a flange stacked on the step.

19. The electronic device as claimed in claim 18 , the frame comprises an outer surface; the embedded portion comprises an exterior surface; the exterior surface is a curved surface; the exterior surface is aligned with the outer surface.

20. An electronic device, comprising:
a housing comprising a frame, a front cover, and a rear cover; the front cover covering a front side of the frame; the rear cover covering a rear side of the frame; the frame comprising an outer surface and an interior surface opposite to the outer surface; wherein the frame defines a slit and a receiving depression communicated with the slit, the receiving depression is exposed in an interior surface of the frame, and the slit is exposed in the outer surface;
a main board, disposed between the front cover and the rear cover; and

Assignees

• Guangdong Oppo Mobile Telecommunications Corp Ltd

Inventors

• Lin Yugui

Classifications

• G06V40/1335 Primary

  Combining adjacent partial images (e.g. slices) to create a composite input or reference pattern; Tracking a sweeping finger movement · CPC title

• G06V40/1318 Primary

  using electro-optical elements or layers, e.g. electroluminescent sensing · CPC title

• G06V40/1365

  Matching; Classification · CPC title

• G06V40/1306

  non-optical, e.g. ultrasonic or capacitive sensing · CPC title

• G06K9/0004 Primary

  Physics · mapped topic