CN207123854U

CN207123854U - Rearmounted fingerprint recognition component and mobile terminal

Info

Publication number: CN207123854U
Application number: CN201721254118.2U
Authority: CN
Inventors: 张文真
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-09-21
Filing date: 2017-09-21
Publication date: 2018-03-20
Anticipated expiration: 2027-09-21

Abstract

The utility model discloses a kind of rearmounted fingerprint recognition component and mobile terminal, rearmounted fingerprint recognition component includes rear shell, rosette, fingerprint sensor, flexible PCB and stiffening plate.Rear shell include substrate and and the side wall that extends from the edge of substrate, substrate include outer surface and inner surface, substrate offers the installation through-hole through inner surface and outer surface；Rosette is located in installation through-hole.Flexible PCB connects fingerprint sensor, and stiffening plate is fixed on flexible PCB, stiffening plate and fingerprint sensor respectively positioned at the opposite both sides of flexible PCB, stiffening plate against and fixation on an internal surface.The size that rearmounted the fingerprint recognition component and mobile terminal of the utility model embodiment can increase display screen is advantageous to Consumer's Experience to improve the screen accounting of mobile terminal.

Description

Rearmounted fingerprint recognition component and mobile terminal

Technical field

It the utility model is related to field of terminal, more particularly to a kind of rearmounted fingerprint recognition component and mobile terminal.

Background technology

In the related art, fingerprint recognition module is arranged on the glass cover-plate of the mobile terminals such as mobile phone, fingerprint recognition mould Group is set up in parallel in the vertical with display screen, is caused the screen accounting of mobile terminal small, is unfavorable for Consumer's Experience.

Utility model content

The utility model embodiment provides a kind of rearmounted fingerprint recognition component and mobile terminal.

The rearmounted fingerprint recognition component of the utility model embodiment includes rear shell, rosette and fingerprint sensor.It is described Rear shell include substrate and and the side wall that extends from the edge of the substrate, the substrate include outer surface and inner surface, the base Plate offers the installation through-hole through the inner surface and the outer surface；The rosette is located in the installation through-hole.Institute Fingerprint sensor is stated to be contained in the rosette.Connect the flexible PCB of the fingerprint sensor；It is described soft with being fixed on Property circuit board stiffening plate, the stiffening plate and the fingerprint sensor respectively positioned at the opposite both sides of the flexible PCB, The stiffening plate against and it is fixed on the internal surface.

In some embodiments, the rosette is fixedly connected by colloid with the side of the installation through-hole.

In some embodiments, the rosette includes tilting towards in the rosette and to the fingerprint sensor Guide ramp.

In some embodiments, the fingerprint sensor includes fingerprint recognition chip and encapsulates the fingerprint recognition chip Packaging body.

In some embodiments, the rosette is cylindrical.

In some embodiments, the stiffening plate by way of being bonded or welding against and be fixed on the inner surface On.

In some embodiments, the rosette is supported on the stiffening plate.

In some embodiments, the rearmounted fingerprint recognition component includes the master positioned at side corresponding to the inner surface Circuit board, the flexible PCB are connected with the main circuit board.

In some embodiments, the orthographic projection of the main circuit board on the internal surface covers the fingerprint sensing Device.

The mobile terminal of the utility model embodiment includes the rearmounted fingerprint recognition group described in any of the above embodiment Part and battery, the battery are located at side corresponding to the inner surface, and the battery electrically connects with the fingerprint sensor.

In rearmounted the fingerprint recognition component and mobile terminal of the utility model embodiment, because fingerprint sensor is arranged on In rear shell, fingerprint sensor is avoided to be set up in parallel in the vertical with display screen, so as to increase the size of display screen to improve The screen accounting of mobile terminal, is advantageous to Consumer's Experience.

Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description In become obvious, or by it is of the present utility model practice recognize.

Brief description of the drawings

In description of the of the present utility model above-mentioned and/or additional aspect and advantage from combination accompanying drawings below to embodiment It will be apparent and be readily appreciated that, wherein：

Fig. 1 is the schematic rear view of the mobile terminal of the utility model embodiment；

Fig. 2 be Fig. 1 mobile terminal II-II to schematic cross-section；

Fig. 3 is the front-view schematic diagram of the mobile terminal of the utility model embodiment.

Main element symbol description：

Rearmounted fingerprint recognition component 100, colloid 102, mobile terminal 200, display screen 201, viewing area 202, non-display area 204th, flash lamp 206, receiver 207；

Rear shell 10, substrate 11, outer surface 111, inner surface 112, side wall 12, installation through-hole 13, the side of installation through-hole 13 131；

Rosette 20, guide ramp 21；

Fingerprint sensor 30, fingerprint recognition chip 31, packaging body 32；

Flexible PCB 40；

Stiffening plate 50；

Main circuit board 60.

Embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein Same or similar label represents same or similar element or the element with same or like function from beginning to end.Lead to below It is exemplary to cross the embodiment being described with reference to the drawings, and is only used for explaining the utility model, and it is not intended that to this practicality New limitation.

In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", The orientation or position relationship of the instructions such as " clockwise ", " counterclockwise " be based on orientation shown in the drawings or position relationship, be only for Be easy to describe the utility model and simplify to describe, rather than instruction or imply signified device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ", " second " is only used for describing purpose, and it is not intended that indicating or implying relative importance or imply the technology indicated by indicating The quantity of feature.Thus, " first " is defined, the feature of " second " can be expressed or implicitly include one or more The feature.In description of the present utility model, " multiple " are meant that two or more, unless otherwise clearly specific Limit.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；It can be mechanical connection or electrical connection or can mutually communicate；Can be joined directly together, can also be in Between medium be indirectly connected, can be connection or the interaction relationship of two elements of two element internals.For this area For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.

In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under " can directly be contacted including the first and second features, it is not directly to contact but lead to that can also include the first and second features The other characterisation contact crossed between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special Sign second feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and obliquely downward, or only Represent that fisrt feature level height is less than second feature.

Following disclosure provides many different embodiments or example is used for realizing different structure of the present utility model. In order to simplify disclosure of the present utility model, hereinafter the part and setting of specific examples are described.Certainly, they are only Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments And/or the relation between setting.In addition, various specific techniques and the example of material that the utility model provides, but this Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.

Fig. 1 and Fig. 2 is referred to, the rearmounted fingerprint recognition component 100 of the utility model embodiment includes rear shell 10, decoration Ring 20, fingerprint sensor 30, flexible PCB 40 and stiffening plate 50.

Rear shell 10 include substrate 11 and and the side wall 12 that extends from the edge of substrate 11, substrate 11 include the He of outer surface 111 Inner surface 112, substrate 11 offer the installation through-hole 13 through inner surface 112 and outer surface 111.

Rosette 20 is located in installation through-hole 13.Fingerprint sensor 30 is contained in rosette 20.

Flexible PCB 40 connects fingerprint sensor 30.Stiffening plate 50 is fixed on flexible PCB 40, and stiffening plate 50 is with referring to Line sensor 30 is respectively positioned at the opposite both sides of flexible PCB 40.Stiffening plate 50 against and be fixed on inner surface 112.

Incorporated by reference to Fig. 3, the rearmounted fingerprint recognition component 100 of the utility model embodiment can be applied to mobile terminal 200, Mobile terminal 200 is, for example, the electronic installations such as mobile phone, Intelligent worn device or tablet personal computer.It is appreciated that mobile terminal 200 wraps Include but be not limited to the example of present embodiment.

In rearmounted the fingerprint recognition component 100 and mobile terminal 200 of the utility model embodiment, due to fingerprint sensor 30 are arranged in rear shell 10, avoid fingerprint sensor 30 from being set up in parallel in the vertical with display screen 201, so as to increase display The size of screen 201 is advantageous to Consumer's Experience to improve the screen accounting of mobile terminal 200.

In addition, stiffening plate 50 against and be fixed on inner surface 112 and can increase the joint face of stiffening plate 50 and inner surface 112 Product, can further prevent fingerprint sensor 30 from being moved relative to rear shell 10.

Specifically, in mobile terminal 200, preceding surface and the 201 corresponding region of display screen of mobile terminal 200 are display Area 202, other regions on the preceding surface of mobile terminal 200 are non-display area 204, and the screen accounting of mobile terminal 200 refers to shifting The ratio of the area and the area of non-display area 204 of the viewing area 202 of dynamic terminal 200.

The mobile terminal 200 of the utility model embodiment includes battery (not shown), and battery is located at the correspondence of inner surface 112 Side, battery electrically connects with fingerprint sensor 30.In this way, battery, which can be mobile terminal 200, provides electric energy.Inner surface 112 Corresponding side is the space of the direction of inner surface 112.

Mobile terminal 200 also includes flash lamp 206, and flash lamp 206 is exposed by rear shell 10, and flash lamp 206 can be to move The dynamic back of terminal 200 supplement light, for example, user in nocturnalism, can use flash lamp 206 to illuminate the scene of surrounding. And for example, when user is shot using the camera of mobile terminal 200, flash lamp 206 can be shooting process light filling to improve movement The shooting quality of terminal 200.

Rear shell 10 is the covering of mobile terminal 200, and rear shell 10 covers the inner body of mobile terminal 200, for example, rear shell 10 can cover the parts such as battery.The material of rear shell 10 is, for example, plastics or metal.When the material of rear shell 10 is metal, rear shell 10 can open up the window that power supply magnetic wave passes through, and window is, for example, gap.

In order to ensure the intensity of rosette 20, it is preferred that the material of rosette 20 is metal, such as stainless steel material, from And meet the intensity requirement of rosette 20, also with corrosion resistance, improve the life-span of rosette 20.In addition, the decoration of metal Ring 20 can prevent electromagnetic wave from causing to do to the signal of fingerprint sensor 30 with the electromagnetic wave around shield fingerprints sensor 30 Disturb.Rosette 20 can be adhesively fixed by the side 131 of colloid 102 and installation through-hole 13.

Flexible PCB 40 can cause fingerprint sensor 30 to carry out data transmission with outer member (such as processor), example Such as, fingerprint sensor 30 gather user fingerprint image after, outer member can to fingerprint image carry out feature recognition with obtain compared with Good fingerprint image.

Fingerprint sensor 30 can be fixed on flexible PCB 40 by way of welding, for example, fingerprint sensor 30 On formed with the first pad, pass through the first pad and second formed with the second pad, fingerprint sensor 30 on flexible PCB 40 Pad solder, so as to be weldingly fixed on flexible PCB 40.Certainly, fingerprint sensor 30 can also pass through anisotropic conductive Glue (Anisotropic Conductive Film, ACF) is fixedly connected with flexible PCB 40.

The defects of stiffening plate 50 can prevent flexible PCB 40 from producing curling, so that can not be effective with fingerprint sensor 30 Ground connects.Therefore, stiffening plate 50 can make it that the reliability of the normal work of fingerprint sensor 30 is higher.

In one example, when putting fingerprint recognition component 100 after assembling, the side that stiffening plate 50 first can be passed through into bonding Formula is fixed on flexible PCB 40, is then fixed on fingerprint sensor 30 by way of welding opposite with stiffening plate 50 The side of flexible PCB 40, to form a fingerprint identification module, fingerprint identification module is finally loaded into decoration outward from interior In ring 20, so that fingerprint sensor 30 is housed in rosette 20, and stiffening plate 50 is resisted against on inner surface 112.

In present embodiment, rosette 20 is cylindrical.Certainly, in other embodiments, the cross section of rosette 20 Can be in other shapes, such as the shape such as side's annular or oval ring.Therefore, the shape of the rosette 20 of present embodiment Example is it is not intended that to limitation of the present utility model.

In present embodiment, fingerprint sensor 30 can be capacitive fingerprint sensing device, or ultrasonic type fingerprint Sensor.

In present embodiment, contacted against against two elements are also referred to, can also refer to that two elements pass through Other objects it is contactless against.For example, in present embodiment, stiffening plate 50 can be resisted against on inner surface 112 by colloid.

In some embodiments, rosette 20 includes guide ramp 21, guide ramp 21 towards in rosette 20 and to Fingerprint sensor 30 tilts.

In this way, the finger that guide ramp 21 can guide user smoothly enters in rosette 20 to carry out fingerprint recognition operation, The accuracy rate that user carries out fingerprint recognition operation can be improved.Further, shinny metal level can be plated in guide ramp 21 (such as layers of chrome), so that rosette 20 is more attractive in appearance.

Specifically, guide ramp 21 is ring surface, can so facilitate user that finger is inserted into rosette 20 from all directions It is interior to press fingerprint sensor 30, so as to carry out fingerprint recognition operation.

In some embodiments, fingerprint sensor 30 includes fingerprint recognition chip 31 and encapsulates fingerprint recognition chip 31 Packaging body 32.

Specifically, when user carries out the operation of unlocked by fingerprint mobile terminal 200, finger can be placed on and fingerprint recognition core Position corresponding to piece 31.The signal of fingerprint recognition chip 31, to gather the fingerprint pattern of identification user, will be used through packaging body 32 The fingerprint pattern at family is matched with the fingerprint pattern to prestore, if the match is successful, unlocks mobile terminal 200.

It is appreciated that the surface of fingerprint recognition chip 31 towards the finger of user is provided with sensor pixel array, with collection The fingerprint pattern of user.Packaging body 32, which encapsulates fingerprint recognition chip 31, can reduce sensor pixel array when gathering fingerprint pattern Influenceed by other interference signals, to improve the accuracy rate of identification.

It is pointed out that in present embodiment, fingerprint recognition chip 31 is silicon wafer (die), and packaging body 32 is plastic packaging Material, such as the material of packaging body 32 is resin.

In some embodiments, stiffening plate 50 by way of being bonded or welding against and be fixed on inner surface 112. In this way, stiffening plate 50 is easily fixed on inner surface 112.

In some embodiments, rosette 20 is supported on stiffening plate 50.In this way, the strong point increase of rosette 20, The stability of rosette 20 can further be improved.

In some embodiments, rearmounted fingerprint recognition component 100 includes the main electricity positioned at side corresponding to inner surface 112 Road plate 60, flexible PCB 40 are connected with main circuit board 60.For example, flexible PCB 40 can pass through connector and main circuit board 60 connections.

In this way, fingerprint sensor 30 can enter row data communication by flexible PCB 40 and main circuit board 60.Specifically, The elements such as processor (not shown), receiver 207 are provided with main circuit board 60, processor is used to handle each of mobile terminal 200 Kind data, and each element manipulation of mobile terminal 200 is controlled, such as the display screen 201 of processor control mobile terminal 200 is aobvious Show different contents.

In some embodiments, orthographic projection covering fingerprint sensor 30 of the main circuit board 60 on inner surface 112.

In this way, main circuit board 60 and fingerprint sensor 30 is closer to the distance, is advantageous to fingerprint sensor 30 and passes through flexible electrical Road plate 40 connects main circuit board 60.

In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation The description of mode ", " example ", " specific example " or " some examples " etc. means with reference to the embodiment or example description Specific features, structure, material or feature are contained at least one embodiment or example of the present utility model.In this explanation In book, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover, the specific spy of description Sign, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.

While there has been shown and described that embodiment of the present utility model, one of ordinary skill in the art can manage Solution：A variety of to the progress of these embodiments can change in the case where not departing from principle and objective of the present utility model, change, Replace and modification, the scope of the utility model are limited by claim and its equivalent.

Claims

A kind of 1. rearmounted fingerprint recognition component, it is characterised in that including：

Rear shell, the rear shell include substrate and and the side wall that extends from the edge of the substrate, the substrate include outer surface and Inner surface, the substrate offer the installation through-hole through the inner surface and the outer surface；

Rosette, the rosette are located in the installation through-hole；

Fingerprint sensor, the fingerprint sensor are contained in the rosette；

Connect the flexible PCB of the fingerprint sensor；With

The stiffening plate of the flexible PCB is fixed on, the stiffening plate is located at the flexible electrical respectively with the fingerprint sensor The opposite both sides of road plate, the stiffening plate against and it is fixed on the internal surface.
2. rearmounted fingerprint recognition component as claimed in claim 1, it is characterised in that the rosette passes through colloid and the peace The side of dress through hole is fixedly connected.
3. rearmounted fingerprint recognition component as claimed in claim 1, it is characterised in that the rosette is included towards the decoration In ring and to the inclined guide ramp of the fingerprint sensor.
4. rearmounted fingerprint recognition component as claimed in claim 1, it is characterised in that the fingerprint sensor includes fingerprint recognition Chip and the packaging body for encapsulating the fingerprint recognition chip.
5. rearmounted fingerprint recognition component as claimed in claim 1, it is characterised in that the rosette is cylindrical.
6. rearmounted fingerprint recognition component as claimed in claim 1, it is characterised in that the stiffening plate is by being bonded or welding Mode against and it is fixed on the internal surface.
7. rearmounted fingerprint recognition component as claimed in claim 1, it is characterised in that the rosette is supported on the stiffening plate On.
8. rearmounted fingerprint recognition component as claimed in claim 1, it is characterised in that the rearmounted fingerprint recognition component includes position Main circuit board in side corresponding to the inner surface, the flexible PCB are connected with the main circuit board.
9. rearmounted fingerprint recognition component as claimed in claim 8, it is characterised in that the main circuit board is on the internal surface Orthographic projection cover the fingerprint sensor.
A kind of 10. mobile terminal, it is characterised in that including：

Rearmounted fingerprint recognition component described in claim any one of 1-9；With

Battery, the battery are located at side corresponding to the inner surface, and the battery electrically connects with the fingerprint sensor.