CN208538143U - Fingerprint identification device and electronic device - Google Patents
Fingerprint identification device and electronic device Download PDFInfo
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- CN208538143U CN208538143U CN201820746822.8U CN201820746822U CN208538143U CN 208538143 U CN208538143 U CN 208538143U CN 201820746822 U CN201820746822 U CN 201820746822U CN 208538143 U CN208538143 U CN 208538143U
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- fingerprint identification
- fingerprint
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Abstract
Disclose a kind of fingerprint identification device, comprising: shell, for limiting cavity, at least partially metal shell；Fingerprint sensor on shell and has exposed sensitive surface；Light-guide device is located on shell and surrounds fingerprint sensor；Circuit board is located in cavity, has first surface and second surface, wherein fingerprint sensor is arranged on the first surface of circuit board；Main control chip, on the second surface of circuit board；And light emitting device, in the first surface and second surface of circuit board；Wherein, a respective surface for circuit board and shell is opposite to each other and the reflecting surface of the irradiation light of restriction light emitting device sending, shell at least partly light transmission, irradiation light are transmitted through hull outside via light-guide device after direct projection or reflection.Fingerprint identification device in the utility model plays the role of illuminating, to solve the problem of that fingerprint pressing deflection and identification information of the user under dark surrounds using appearance when fingerprint identification device are difficult to read to know.
Description
Technical field
The utility model relates to fingerprint identification technology field, in particular to a kind of fingerprint identification device and electronic device.
Background technique
Two pieces of fingerprints often general characteristic having the same, but their minutia, but can not be identical.Refer to
Line lines is not continuous, smooth straight, but interruption, bifurcated or turnover often occurs.These breakpoints, bifurcation and turn
Break is known as " characteristic point ", and characteristic point provides the confirmation message of fingerprint uniqueness.
Due to above, fingerprint identification technology is widely used in terminal, safety door inhibition, attendance, examination
The every field such as identification, safe cabinet, USB flash disk data encryption.Everyone fingerprint on pattern, breakpoint and crosspoint it is each not
It is identical, uniqueness and constant throughout one's life is presented, the fingerprint of someone and the finger print data pre-saved can be compared, so that it may
To verify the true identity of this person.
The electronic device of existing employing fingerprint identification device is without significantly indicating information, under darker environment
In use, the phenomenon that being easy to appear fingerprint pressing deflection, it is difficult to quick and precisely identify the fingerprint of user；In addition, existing answer
Identification information would generally be shown on it with the electronic device of fingerprint identification device, and user is difficult to read to know in dark conditions
The information shown on electronic device.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of fingerprint identification device and electronic devices, with solution
When using fingerprint identification device certainly under dark surrounds, fingerprint pressing deflection and identification information are difficult to read the problem of knowing.
It is according to the present utility model in a first aspect, providing a kind of fingerprint identification device, comprising:
Shell, for limiting cavity, at least partially metal shell；
Fingerprint sensor on the shell and has exposed sensitive surface；
Light-guide device is located on the shell and surrounds the fingerprint sensor, and circuit board is located in the cavity, tool
There are first surface and second surface, wherein the fingerprint sensor is arranged on the first surface of the circuit board；
Main control chip, on the second surface of the circuit board；And
Light emitting device, in the first surface and second surface of the circuit board；
Wherein, a respective surface for circuit board and shell is relative to each other and limits the irradiation light that the light emitting device issues
Reflecting surface, irradiation light is transmitted through the hull outside via the light-guide device after direct projection or reflection.
Preferably, a respective surface for the circuit board and shell is coated with white coating, or is coated with reflective layer.
Preferably, guide-lighting slot is provided on the circuit board, the leaded light slot position is in the two sides of the fingerprint sensor.
Preferably, the light-guide device is cyclic annular side, annular shape or polygonal ring shape, and the fingerprint sensor is side
The inside or side of the light-guide device is arranged in shape, circle or polygon, the fingerprint sensor.
Preferably, the light-guide device is equipped with opening corresponding with the light emitting device.
Preferably, the shell includes first shell and second shell, and the first shell and the second shell pass through
Bolt is fixedly connected.
Preferably, the first shell is metal shell, the metal shell integrated molding.
Preferably, it is electrically connected with power module on the circuit board, it is the power module and the fingerprint sensor, described
Main control chip, the light emitting device, controller and metal shell electrical connection.
Preferably, the light emitting device is LED light.
Preferably, it is provided with connector on the circuit board, several data output terminals, institute are provided on the connector
It states and is provided on controller and the one-to-one DATA IN terminal of the data output terminal.
Another aspect according to the present utility model provides a kind of electronic device, including fingerprint identification device described above.
Fingerprint identification device provided by the utility model limits cavity by shell, and at least partly shell is metal shell,
Light-guide device and circuit board are set in the cavities, wherein a respective surface for the circuit board and shell is relative to each other and limits
The reflecting surface for the irradiation light that the fixed light emitting device issues, irradiation light are saturating via the light-guide device after direct projection or reflection
It is incident upon the hull outside.When using this fingerprint identification device under dark surrounds, user makes gold by touching metal shell
Belonging to shell and issues signal to controller, controller controls the irradiation light that light emitting device issues by main control chip and penetrates shell, from
And play the role of illuminating fingerprint identification device and electronic device, so that solve user uses fingerprint recognition under dark surrounds
When device, the fingerprint pressing deflection and identification information of appearance are difficult to read the problem of knowing.
Detailed description of the invention
By referring to the drawings to the description of the utility model embodiment, above-mentioned and other mesh of the utility model
, feature and advantage will be apparent from, in the accompanying drawings:
Fig. 1 a and Fig. 1 b respectively illustrate the quick-fried of the different perspectives of fingerprint identification device provided by the embodiment of the utility model
Fried schematic diagram；
Fig. 2 shows the cross-sectional views of fingerprint identification device provided by the embodiment of the utility model；
Fig. 3 shows another cross-sectional view of fingerprint identification device provided by the embodiment of the utility model；
Fig. 4 shows the perspective view of fingerprint identification device provided by the embodiment of the utility model.
It is marked in figure as follows:
1- shell；2- fingerprint sensor；3- light-guide device；4- circuit board；5- main control chip；6- light emitting device；7- is patched
Part；
1a- first shell；1b- second shell.
Specific embodiment
Hereinafter reference will be made to the drawings is more fully described the various embodiments of the utility model.In various figures, identical
Element is indicated using same or similar appended drawing reference.For the sake of clarity, the various pieces in attached drawing are not drawn to draw
System.
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.
Referring to Fig. 1 a- Fig. 4, fingerprint identification device provided by the utility model includes shell 1, fingerprint sensor 2, guide-lighting member
Part 3, circuit board 4,5 (not shown) of main control chip and light emitting device 6.
Wherein, shell 1 is for limiting cavity, and at least partly shell is metal shell；Fingerprint sensor 2 is located at the shell
On body 1 and there is exposed sensitive surface；Light-guide device 3 is located on the shell 1 and around the fingerprint sensor 2；Circuit
Plate 4 is located in the cavity, has first surface 41 and second surface 42, wherein the fingerprint sensor 2 is arranged described
On the first surface 41 of circuit board 4；Main control chip 5 is located on the second surface 42 of the circuit board 4；And light emitting device 6
In on the first surface 41 and second surface 42 of the circuit board 4.Wherein, a respective surface for the circuit board 4 and shell 1
Opposite to each other and limit the reflecting surface of the irradiation light that the light emitting device 6 issues, irradiation light after direct projection or reflection via
The light-guide device 3 is transmitted through outside the shell 1.
In the present embodiment, the shell 1 includes first shell 1a and second shell 1b, the first shell 1a and described
Second shell 1b is bolted to connection, and the first shell 1a is metal shell, the metal shell integrated molding.Institute
It states first shell 1a and the light-guide device 3 can be integrated molding, be also possible to non-integral molding.
In the present embodiment, it is provided with guide-lighting slot 43 on the circuit board 4, which is located at the fingerprint sensor
2 two sides, it is L-shaped.
The circuit board 4 is electrically connected with controller.When using this fingerprint identification device under dark surrounds, user passes through
Metal shell is touched, as long as the partial region of finger touches metal shell, metal shell can all be made to issue signal to controller,
Controller issues control signal to main control chip 5, and main control chip 5 controls the irradiation light that light emitting device 6 issues and penetrates shell 1, from
And play the role of illuminating fingerprint identification device and electronic device, so that solve user uses fingerprint recognition under dark surrounds
When device, the fingerprint pressing deflection and identification information of appearance are difficult to read the problem of knowing.
In the present embodiment, a respective surface for the circuit board 4 and shell 1 is coated with white coating, or is coated with
Reflective layer, thus the reflecting surface of the irradiation light issued as the light emitting device 6；Irradiation light after direct projection or reflection via
The light-guide device 3 is transmitted through the hull outside, and brightness and energy efficiency can be improved.White coating in the present embodiment
It can be white ink, but not limited to this.
Specifically, the surface of the first surface 41 of the circuit board 4 and first shell 1a are as positioned at the circuit board 4
The reflecting surface for the irradiation light that light emitting device 6 on first surface 41 issues.The second surface 42 and second shell of the circuit board 4
The reflecting surface for the irradiation light that the surface of body 1b is issued as the light emitting device 6 on the second surface 42 for being located at the circuit board 4.
In the present embodiment, the light-guide device 3 is that side is cyclic annular, and the fingerprint sensor 2 is rectangular, the fingerprint sensing
The inside or side of the light-guide device 3 is arranged in device 2.When pressing fingerprint, it can guarantee connecing for finger and light-guide device 3
Touching, to realize the work of fingerprint sensor 2.Because light-guide device 3 is that side is cyclic annular, rectangular fingerprint sensing can be effectively accommodated
Device 2, and rectangular fingerprint sensor 2 can be preferably mounted on different electronic devices, it is preferably suitable with pressing finger
Match, the application scenarios of fingerprint identification device can be enriched.The light-guide device 3 can not only play the role of sensor, may be used also
Play the role of ESD electrostatic protection with ground connection.
In a preferred embodiment, the shape of the shape of the light-guide device and the fingerprint sensor is simultaneously unlimited
In this, for example, light-guide device is shown as circular, the fingerprint sensor is circle.Or the light-guide device is shown as more
Side shape is cyclic annular, and the fingerprint sensor is the polygon that the light-guide device is shown.The fingerprint sensor can be any rule
Then or irregular shape, the light-guide device are the ring-type that can surround fingerprint sensor of any regular or irregular shape；
The inside or side of the light-guide device is arranged in the fingerprint sensor.
In a preferred embodiment, the shape of the fingerprint sensor it is identical as the shape that the becket is shown or
Person is different.
The light-guide device 3 is equipped with opening corresponding with the light emitting device 6, to accommodate be located at circuit board 4 first
Light emitting device 6 on surface 41.
Fingerprint sensor 2 is conducted with circuit board 4 by scolding tin or conducting resinl；Light emitting device 6 and circuit board 4 pass through scolding tin
Or conducting resinl is conducted.
Power module is electrically connected on the circuit board 4, power module and fingerprint sensor 2, main control chip 5, shine dress
Set 6, controller and metal shell electrical connection.
Light emitting device 6 in the utility model is other than playing the role of illuminating, additionally it is possible to play for different recognition results
Display effect.When user presses finger on fingerprint sensor 2, the finger print information that fingerprint sensor 2 will acquire is passed to
Main control chip 5, main control chip 5 passes through the finger print information that will acquire compared with default preset fingerprint information on it, to control
The result information that device output processed determines, can also be set on the controller, when the judgement result information of output is consistent, control
Device processed by main control chip 5 control light emitting device 6 issue the first color light, when determine result information be it is inconsistent, then control
Device controls the light that light emitting device 6 issues the second color by main control chip 5, and the light color of the light of the first color and the second color is not
Unanimously.Specifically, the light emitting device is LED light, can be energy saving.
In the present embodiment, connector 7 is provided on the circuit board 4, it is defeated to be provided with several data on the connector 7
Terminal out, be provided on the controller with the one-to-one DATA IN terminal of the data output terminal, to realize each
A element is electrically connected with controller.
The utility model also provides a kind of electronic device, including fingerprint identification device described above, to solve in dark
Fingerprint pressing deflection and identification information are difficult to read the problem of knowing under environment.
It is as described above according to the embodiments of the present invention, these embodiments details all there is no detailed descriptionthe,
Also not limiting the utility model is only the specific embodiment.Obviously, as described above, many modification and change can be made
Change.These embodiments are chosen and specifically described to this specification, is in order to preferably explain the principles of the present invention and actually to answer
With so that skilled artisan be enable to utilize the utility model and repairing on the basis of the utility model well
Change use.The utility model is limited only by the claims and their full scope and equivalents.
Claims (11)
1. a kind of fingerprint identification device characterized by comprising
Shell, for limiting cavity, at least partially metal shell；
Fingerprint sensor on the shell and has exposed sensitive surface；
Light-guide device is located on the shell and surrounds the fingerprint sensor；
Circuit board is located in the cavity, has first surface and second surface, wherein the fingerprint sensor is arranged in institute
It states on the first surface of circuit board；
Main control chip, on the second surface of the circuit board；And
Light emitting device, in the first surface and second surface of the circuit board；
Wherein, a respective surface for circuit board and shell is relative to each other and limits the anti-of the irradiation light that the light emitting device issues
Optical surface, irradiation light are transmitted through the hull outside via the light-guide device after direct projection or reflection.
2. fingerprint identification device according to claim 1, which is characterized in that a respective table for the circuit board and shell
Face is coated with white coating, or is coated with reflective layer.
3. fingerprint identification device according to claim 1, which is characterized in that be provided with guide-lighting slot, institute on the circuit board
Guide-lighting slot position is stated in the two sides of the fingerprint sensor.
4. fingerprint identification device according to claim 1, which is characterized in that the light-guide device is that side is cyclic annular, circular
Or polygonal ring shape, the fingerprint sensor are rectangular, round or polygon, the fingerprint sensor is arranged in the leaded light
The inside or side of element.
5. fingerprint identification device according to claim 4, which is characterized in that the light-guide device is equipped with to shine with described
The corresponding opening of device.
6. fingerprint identification device according to claim 1, which is characterized in that the shell includes first shell and second shell
Body, the first shell and the second shell are bolted to connection.
7. fingerprint identification device according to claim 6, which is characterized in that the first shell is metal shell, described
Metal shell integrated molding.
8. fingerprint identification device according to claim 1, which is characterized in that be electrically connected with power supply mould on the circuit board
Block, the power module and the fingerprint sensor, the main control chip, the light emitting device, controller and the metal-back
Body electrical connection.
9. fingerprint identification device according to claim 1, which is characterized in that the light emitting device is LED light.
10. fingerprint identification device according to claim 8, which is characterized in that be provided with connector, institute on the circuit board
It states and is provided with several data output terminals on connector, be provided on the controller and corresponded with the data output terminal
DATA IN terminal.
11. a kind of electronic device, which is characterized in that including such as described in any item fingerprint identification devices of claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820746822.8U CN208538143U (en) | 2018-05-18 | 2018-05-18 | Fingerprint identification device and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820746822.8U CN208538143U (en) | 2018-05-18 | 2018-05-18 | Fingerprint identification device and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208538143U true CN208538143U (en) | 2019-02-22 |
Family
ID=65393846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820746822.8U Active CN208538143U (en) | 2018-05-18 | 2018-05-18 | Fingerprint identification device and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208538143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11163403B2 (en) | 2018-04-26 | 2021-11-02 | Chipone Technology (Beijing) Co., Ltd. | Touch positioning method and apparatus, and electronic device |
-
2018
- 2018-05-18 CN CN201820746822.8U patent/CN208538143U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11163403B2 (en) | 2018-04-26 | 2021-11-02 | Chipone Technology (Beijing) Co., Ltd. | Touch positioning method and apparatus, and electronic device |
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