CN105426873B - A kind of fingerprint identification device and the terminal with the fingerprint identification device - Google Patents
A kind of fingerprint identification device and the terminal with the fingerprint identification device Download PDFInfo
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- CN105426873B CN105426873B CN201510956762.3A CN201510956762A CN105426873B CN 105426873 B CN105426873 B CN 105426873B CN 201510956762 A CN201510956762 A CN 201510956762A CN 105426873 B CN105426873 B CN 105426873B
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- identification device
- fingerprint identification
- backing plate
- light source
- bracket
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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- Theoretical Computer Science (AREA)
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Abstract
A kind of fingerprint identification device and the terminal with the fingerprint identification device, wherein fingerprint identification device includes bracket, the fingerprint recognition chip being assembled in below bracket, at least one light source for being fixed on bracket surrounding and the backing plate for being carried on rack surface, the backing plate and it is located at light source periphery, the backing plate is for the extraneous veiling glare on the lateral margin direction of fingerprint identification device to be isolated with light source.By the way that backing plate is arranged, to be isolated in the lateral margin direction of fingerprint identification device veiling glare extraneous in the future with light source, extraneous veiling glare is obstructed to the adverse effect of fingerprint identification device, light source is centered around to the loss that the light of light source sending is reduced within backing plate simultaneously, the potential luminous flux for increasing light source and injecting light guide plate, preferably to realize fingerprint identification function.Stablize in addition, the setting of the backing plate is conducive to the fixing between light guide plate, cover board and bracket again, increases the structural stability and integral strength of entire fingerprint identification device.
Description
Technical field
The present invention relates to fingerprint identification technology field more particularly to a kind of fingerprint identification device and there is fingerprint recognition dress
The terminal set.
Background technique
The prior art please refers to shown in Chinese utility model patent bulletin CN204791058U patent, and the utility model is special
Benefit discloses a kind of fingerprint identification device, and the fingerprint identification device is installed on the panel of terminal.Fingerprint identification device includes
Fingerprint recognition mould group, control element and illuminating module.Fingerprint recognition mould group is bonded the inner surface for being fixed on panel, the other mould of fingerprint
Group electrical connection control element.Illuminating module includes the light source of pedestal and setting on the base, and pedestal is fixed with fingerprint recognition mould group
Connection, light source are electrically connected control element, and control element controls the working condition of light source.But such finger disclosed in the prior art
The light source periphery of line identification device is without any light obstructing member, so that the luminous flux that the light source of fingerprint identification device exposes to panel is small
(light leakage), and because light source periphery is without any light obstructing member so that the light that extraneous veiling glare and light source issue interfere with each other influence so that
The recognition performance for obtaining fingerprint identification device weakens significantly.
Therefore, it is necessary to provide a kind of improved fingerprint identification device to solve the above problems.
Summary of the invention
In view of the problems of the existing technology the present invention, provides the novel fingerprint identification device of one kind and has the fingerprint
The terminal of identification device can eliminate the influence of extraneous veiling glare, while increasing light source to a certain extent and being irradiated to the light on panel
Flux.
To achieve the above object, the present invention provides a kind of fingerprint identification devices, include bracket, are assembled in the bracket
The fingerprint recognition chip of lower section, at least one light source for being fixed on bracket surrounding, the fingerprint identification device further includes having backing plate,
The backing plate is carried on rack surface, and is located at light source periphery, and the backing plate is used for will be along the lateral margin side of fingerprint identification device
Upward extraneous veiling glare is isolated with light source.
As a further improvement of the present invention, the backing plate in closed frame shaped and is formed with receiving in middle position
Hole.
As a further improvement of the present invention, backing plate inner edge projection into receiving hole is formed with for limiting light source
Retention bead.
As a further improvement of the present invention, the bracket and backing plate at least one of outer rim be recessed inwardly to be formed
There is limiting slot.
As a further improvement of the present invention, the bracket lower surface, which is recessed inwardly, is formed with the reserved groove of cabling, described
Cabling reserves groove at round table-like, and the upper surface of the bracket correspond to the bond pad trench that the reserved groove location of cabling is formed with L shape,
The light source is correspondingly arranged in bond pad trench, and is reserved groove by bond pad trench and cabling and realized and connect with the electrical property for docking circuit board
It connects.
As a further improvement of the present invention, the fingerprint identification device further includes having the leaded light being carried on the support
Plate, the backing plate are located at light guide plate periphery, and the light source is between backing plate and light guide plate.
As a further improvement of the present invention, the backing plate is made by sheet metal is etched.
As a further improvement of the present invention, the bracket is substantially in frame structure and is formed with for accommodating fingerprint recognition
The through-hole of chip, the bracket include framework and are used to limit fixed fingerprint along what framework upper surface extended into receiving opening
The alar part of identification chip, the setting of the alar part is so that receiving opening cross section shape substantially in the shape of a " convex ".
As a further improvement of the present invention, the fingerprint identification device further includes being covered on above the light guide plate
Cover board, the backing plate, light guide plate and light source are in the same plane.
It include at least one fingerprint identification device the invention also discloses a kind of terminal, the fingerprint identification device is set
There is bracket, the fingerprint recognition chip that is assembled in below the bracket, at least one light source for being fixed on bracket surrounding, is assembled in institute
The light guide plate and cover board on bracket are stated, the fingerprint identification device further includes having backing plate, and the backing plate is carried on rack surface, and
And it is located at light source periphery, the backing plate is used to for the extraneous veiling glare on the lateral margin direction of fingerprint identification device being isolated with light source,
The backing plate is formed with the receiving hole of receiving light guide plate in frame shaped and in middle position, and the cover plate lid is set to light guide plate, light
On source and backing plate, the light source is between light guide plate and backing plate.
The beneficial effects of the present invention are: by setting backing plate, in the lateral margin direction of the fingerprint identification device external world in future
Veiling glare is isolated with light source, obstructs extraneous veiling glare to the adverse effect of fingerprint identification device, while light source being centered around within backing plate
To reduce the loss of the light of light source sending, the potential luminous flux for increasing light source and injecting light guide plate, preferably to realize that fingerprint is known
Other function.Stablize in addition, the setting of the backing plate is conducive to the fixing between light guide plate, cover board and bracket again, increases entire
The structural stability and integral strength of fingerprint identification device.
Detailed description of the invention
Fig. 1 is the schematic perspective view of fingerprint identification device of the present invention；
Fig. 2 is the schematic perspective view that fingerprint identification device described in Fig. 1 is seen from another angle；
Fig. 3 is the part isometric exploded view of fingerprint identification device of the present invention, and which show cover boards and light guide plate to know from fingerprint
Stereogram exploded view after other device separation；
Fig. 4 is the part isometric exploded view of fingerprint identification device of the present invention, and which show cover board, light guide plate and backing plates from finger
Stereogram exploded view after the separation of line identification device；
Fig. 5 is the stereogram exploded view of fingerprint identification device of the present invention；
Fig. 6 is the schematic perspective view that fingerprint identification device described in Fig. 5 is seen from another angle；
Fig. 7 is diagrammatic cross-section of the fingerprint identification device of the present invention from line A-A shown in Fig. 1.
Fig. 8 is the front view of diagrammatic cross-section shown in Fig. 7.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to various embodiments shown in the accompanying drawings.But these embodiments are not
The limitation present invention.
It please refers to shown in Fig. 1 to Fig. 8, is a kind of fingerprint identification device 100 disclosed by the invention, the fingerprint identification device
100 include bracket 1, the fingerprint recognition chip 2 being assembled in below the bracket, several light sources for being fixed on 1 surrounding of bracket
3, it encloses the backing plate 4 set on several 3 peripheries of light source, the light guide plate 5 being covered on above the fingerprint recognition chip 2 and is covered on described
The cover board 6 of 5 top of light guide plate.In the present invention, the backing plate 4, light guide plate 5 and light source 3 are in the same plane.The fingerprint is known
Other device 100 is used to be electrically connected the circuit board (not shown) being fixed on a kind of end product (not shown).The terminal
It can be mobile phone, tablet computer, USB flash disk, mobile hard disk, automobile, safety box, security door etc..Certain terminal is not limited to
It is exemplified as above, it can be the equipment that all in actual life need to install fingerprint identification device.
It please refers to shown in Fig. 2, Fig. 4 to Fig. 8, the bracket 1 is made of insulating material, and generally rectangular framework knot
Structure.1 middle position of bracket is formed with perforative receiving opening 10 up and down.The bracket 1 includes framework 11 and along framework
The alar part 12 that 11 upper surfaces extend into receiving opening 10.The setting of the alar part 12 is so that 10 cross section of receiving opening is substantially in
"convex" shaped shape.The alar part 12 is for limiting fixed fingerprint recognition chip 2.The upper surface of the framework 11 is at corner location
It is recessed inwardly and is formed with glue groove 110, the glue groove 110 is for storing colloid extra in processing procedure.1 lower surface of bracket
It is recessed inwardly and is formed with the reserved groove 111 of cabling, the cabling reserves groove 111 through 1 upper surface of bracket and at round table-like.
The upper surface of the bracket 1 corresponds to cabling and reserves the bond pad trench 113 that 111 position of groove is formed with L shape.When the fingerprint recognition
When device 100 is installed up to circuit board, the reserved groove 111 of the cabling is punched by means such as laser to be connected to bond pad trench 113, and
It is electrically connected by the conductive material light source 3 (not shown, to can be scolding tin etc.) for realizing fingerprint identification device 100 and circuit board.
Locating slot 112 is formed on a bracket 1 at least lateral margin, the locating slot 112 is recessed inwardly and passes through along the lateral margin of bracket 1
The upper and lower surface of perforating branches frame 11 and formed.When the locating slot 112 is used to the assembling of fingerprint identification device 100 being fixed to circuit board
Positioning.
It please refers to shown in Fig. 2, fig. 4 to fig. 6, in the present invention, the light source 3 is preferably multiple, and multiple light sources 3 are intervally arranged into
Ring-type is fixed on 11 upper surface of framework of bracket 1 (present invention refers to that the upper surface surrounding of framework 11 is laid with light source 3).It is described to be in
The light source 3 that ring-type is laid can be around light guide plate 5, so that light uniformly injects light guide plate 5.Light source 3 or one
A, the light source 3 may be designed to annular at this time, and surround light guide plate 5.In addition, the light source is preferably LED lamp bead, LED lamp bead
Heat dissipation performance is preferable, and it facilitates maintenance to replace.In the present invention, the leg (not shown) of the light source 3 corresponds respectively to above-mentioned
Bond pad trench 113 is arranged.
It please refers to shown in Fig. 1 to Fig. 8, in the present invention, the generally rectangular frame shaped of the backing plate 4.The backing plate 4 is by gold
Belong to material to be made, preferably stainless steel material, the intensity of so certifiable backing plate 4.In actual product, the backing plate 4 is very thin, therefore
First choice is made up to guarantee that backing plate 4 has preferable flatness of etching.Locating slot 112 in 4 outer rim of backing plate and bracket 1
Corresponding position is also formed with locating slot 41, and the shape and function of the locating slot 41 are similar to locating slot 112.The backing plate 4
Centre is formed through receiving hole 40 for accommodating light guide plate 5.4 inner edge of backing plate projection into receiving hole 40, which is formed with, to be used for
Limit the retention bead 42 of fixed light source 3.In the present invention, the assembling of backing plate 4 is fixed between cover board 5 and bracket 1 and is surrounded
3 periphery of light source.4 circumference of backing plate is identical as 1 circumference of bracket.Certainly in other embodiments, the backing plate 4 is also
It can be set to the plate of several segments separation, every section of backing plate 4 can be arc panel shape, L shape plate etc., it is only necessary to which satisfaction can be every
The light source 3 and extraneous veiling glare adjacent from backing plate 4, certain 4 shape of backing plate also can be according to actual fingerprint identification device 100
Specific shape does the change adapted to.
It please refers to shown in Fig. 1 to Fig. 7, in the present invention, the light guide plate 5 is the tabular component of light transmission, preferably transparent performance
Good sheet glass.The light guide plate 5 is carried on the upper surface of bracket 1 and is contained among the receiving hole 40 of backing plate 4, the light
Source 3 is fixed in the gap (not labeled) formed between light guide plate 5 and backing plate 4.
It please refers to shown in Fig. 1 to Fig. 7, the cover board 5 can be a part of mobile terminal case, can also be individual
Component.
The fingerprint identification device 100 in the present invention is shone by light source 3 injects light guide plate 5, passes through the folding of light guide plate
It penetrates and reflects the imaging for realizing fingerprint, while cooperating the identification of fingerprint chip 2, realized the fingerprint identification function of mobile terminal.
In the present invention, by the way that backing plate 4 is arranged, in the miscellaneous of the lateral margin direction of 100 device of the fingerprint identification device external world in future
Light is isolated with light source, obstructs extraneous veiling glare to the adverse effect of fingerprint identification device 100, at the same by light source 3 be centered around backing plate 4 it
The interior loss to reduce the light of the sending of light source 3, the potential luminous flux for increasing light source and injecting light guide plate 5, is referred to better realization
Line identification function.Stablize in addition, the setting of the backing plate 4 is conducive to the fixing between light guide plate 5, cover board 6 and bracket 1 again, increases
The structural stability and integral strength of entire fingerprint identification device 100 are added.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of fingerprint identification device includes bracket, the fingerprint recognition chip being assembled in below the bracket, is fixed on bracket
At least one light source of surrounding, it is characterised in that: the fingerprint identification device further includes having backing plate, and the backing plate is carried on bracket
Surface, and it is located at light source periphery, the backing plate is used for the extraneous veiling glare and light on the lateral margin direction of fingerprint identification device
Source isolation；The fingerprint identification device further includes having the light guide plate being carried on the support, and the backing plate is located at outside light guide plate
It encloses, the light source is between backing plate and light guide plate.
2. a kind of fingerprint identification device according to claim 1, it is characterised in that: the backing plate in closed frame shaped simultaneously
Receiving hole is formed in middle position.
3. a kind of fingerprint identification device according to claim 2, it is characterised in that: the backing plate inner edge is to receiving hole convex
If being formed with the retention bead for limiting light source.
4. a kind of fingerprint identification device according to claim 1, it is characterised in that: among the bracket and backing plate at least
One outer rim, which is recessed inwardly, is formed with limiting slot.
5. a kind of fingerprint identification device according to claim 1, it is characterised in that: the bracket lower surface is recessed inwardly shape
At there is cabling to reserve groove, the cabling reserves groove at round table-like, and the upper surface of the bracket correspond to the reserved groove position of cabling
The bond pad trench for being formed with L shape is set, the light source is correspondingly arranged in bond pad trench, and is reserved groove by bond pad trench and cabling and realized
With the electric connection for docking circuit board.
6. a kind of fingerprint identification device according to any one of claims 1 to 5, it is characterised in that: the backing plate
It is made by sheet metal is etched.
7. a kind of fingerprint identification device according to any one of claims 1 to 5, it is characterised in that: the bracket
In frame structure and it is formed with through-hole for accommodating fingerprint recognition chip, the bracket includes framework and along framework upper surface
What is extended into receiving opening is used to limit the alar part of fixed fingerprint recognition chip, and the setting of the alar part is so that receiving opening is horizontal
Section shape substantially in the shape of a " convex ".
8. a kind of fingerprint identification device according to any one of claims 1 to 5, it is characterised in that: the fingerprint
Identification device further includes having the cover board being covered on above the light guide plate, and the backing plate, light guide plate and light source are generally aligned in the same plane
It is interior.
Include at least one fingerprint identification device 9. a kind of terminal, the fingerprint identification device be equipped with bracket, be assembled in it is described
Fingerprint recognition chip below bracket, at least one light source for being fixed on bracket surrounding, the light guide plate being assembled on the bracket
And cover board, it is characterised in that: the fingerprint identification device further includes having backing plate, and the backing plate is carried on rack surface, and position
In light source periphery, the backing plate is described for the extraneous veiling glare on the lateral margin direction of fingerprint identification device to be isolated with light source
Backing plate in frame shaped and in middle position be formed with accommodate light guide plate receiving hole, the cover plate lid be set to light guide plate, light source and
On backing plate, the light source is between light guide plate and backing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510956762.3A CN105426873B (en) | 2015-12-17 | 2015-12-17 | A kind of fingerprint identification device and the terminal with the fingerprint identification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510956762.3A CN105426873B (en) | 2015-12-17 | 2015-12-17 | A kind of fingerprint identification device and the terminal with the fingerprint identification device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105426873A CN105426873A (en) | 2016-03-23 |
| CN105426873B true CN105426873B (en) | 2019-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510956762.3A Active CN105426873B (en) | 2015-12-17 | 2015-12-17 | A kind of fingerprint identification device and the terminal with the fingerprint identification device |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106295606B (en) * | 2016-08-19 | 2020-06-19 | 维沃移动通信有限公司 | Fingerprint identification subassembly, fingerprint identification module and mobile terminal |
| DE212018000123U1 (en) * | 2018-02-06 | 2019-08-20 | Shenzhen GOODIX Technology Co., Ltd. | Under the screen to be arranged biometric identification device, biometric identification component and terminal device |
| CN110095901B (en) * | 2019-05-17 | 2024-01-19 | 深圳市隆利科技股份有限公司 | Side income formula backlight unit and fingerprint identification device under screen with cavity |
| CN111066029B (en) * | 2019-07-30 | 2023-10-24 | 深圳市汇顶科技股份有限公司 | Fingerprint identification subassembly, optical fingerprint display module assembly and electron device |
| WO2022041069A1 (en) * | 2020-08-27 | 2022-03-03 | 深圳市汇顶科技股份有限公司 | Fingerprint recognition apparatus and electronic device |
| CN117083645A (en) * | 2022-02-23 | 2023-11-17 | 京东方科技集团股份有限公司 | Fingerprint identification module |
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| CN1313570A (en) * | 2000-03-10 | 2001-09-19 | 欧姆龙株式会社 | Fingerprint identifying device and scanning window structure |
| CN203630794U (en) * | 2013-12-13 | 2014-06-04 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and mobile terminal |
| CN104794428A (en) * | 2015-03-06 | 2015-07-22 | 南昌欧菲生物识别技术有限公司 | Fingerprint recognition device, touch screen and terminal equipment |
| CN104794471A (en) * | 2015-05-19 | 2015-07-22 | 深圳市恒睿智达科技有限公司 | Biological characteristic optical image acquisition module based on glass panel, and mobile terminal |
| CN204791058U (en) * | 2015-07-09 | 2015-11-18 | 广东欧珀移动通信有限公司 | Fingerprint identification device and have this fingerprint identification device's terminal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070014441A1 (en) * | 2005-07-13 | 2007-01-18 | Jung-Chun Wu | Fingerprint identification assembly using total reflection to indentify pattern of the fingerprint |
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2015
- 2015-12-17 CN CN201510956762.3A patent/CN105426873B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313570A (en) * | 2000-03-10 | 2001-09-19 | 欧姆龙株式会社 | Fingerprint identifying device and scanning window structure |
| CN203630794U (en) * | 2013-12-13 | 2014-06-04 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and mobile terminal |
| CN104794428A (en) * | 2015-03-06 | 2015-07-22 | 南昌欧菲生物识别技术有限公司 | Fingerprint recognition device, touch screen and terminal equipment |
| CN104794471A (en) * | 2015-05-19 | 2015-07-22 | 深圳市恒睿智达科技有限公司 | Biological characteristic optical image acquisition module based on glass panel, and mobile terminal |
| CN204791058U (en) * | 2015-07-09 | 2015-11-18 | 广东欧珀移动通信有限公司 | Fingerprint identification device and have this fingerprint identification device's terminal |
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| CN105426873A (en) | 2016-03-23 |
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