CN206097135U - Fingerprint identification system that combines together with touch screen technique - Google Patents

Abstract

The utility model provides a fingerprint identification system that combines together with touch screen technique, include: a fingerprint identification sensor for the sensing fingerprint, set up in the protection shield of direct and staff contact on the fingerprint identification sensor, set up in the base plate of fingerprint identification sensor below to and be used for handling sensed data's fingerprint identification chip. The fingerprint identification sensor can be directly and the protection shield of top integrated, it is integrated in the base plate and the fingerprint identification chip of below to do, a fingerprint identification system that combines together with touch screen technique still includes: with the fingerprint identification sensor links to each other for the flexible circuit board of intercommunication equipment motherboard, this flexible circuit board combines together with the circuit board of touch -sensitive screen. The utility model provides a pair of fingerprint identification system that combines together with touch screen technique can promote user experience, simplify process technology, reduce the product appearance design degree of difficulty.

Description

A kind of fingerprint recognition system in combination with touch screen technology

Technical field

The utility model is related to capacitive touch screen field, more particularly to a kind of fingerprint recognition in combination with touch screen technology System.

Background technology

Fingerprint identification technology is most ripe at present and low-cost biometrics identification technology.Fingerprint recognition at present Technology be most widely used, we not only can see the figure of fingerprint identification technology in gate inhibition, attendance checking system, on market There is the application of more fingerprint recognitions：As notebook computer, mobile phone, automobile, bank paying all can employing fingerprint identification technology.

In computer application, including many very secret file protections, mostly come using the method for " ID+password " Carry out authentication and the access control of user.But, if once password is forgotten, or stolen by others, computer system with And the safety problem of file just receives threat.

With the progress of science and technology, fingerprint identification technology has begun to slowly enter in PC World.Many companies and grind Study carefully mechanism and all achieve very big breakthrough progress in fingerprint identification technology field, release many fingerprint recognitions complete with tradition IT technologies The application product that U.S. combines, these products are approved by increasing user.

Before this fingerprint identification technology is used for the commercial field higher to security requirement, in commercial mobile office field Have much the internationally renowned brands such as Fujitsu, Samsung and the IBM of achievement and be owned by the technology fingerprint recognition system more ripe with application System.

And with mobile Internet and the rise of ecommerce, handheld terminal（Mainly mobile phone）Safety issue progressively Embody, be that it is installed fingerprint recognition system and becomes the active demand of each manufacturer, by the way of be exactly at present to install solely Vertical fingerprint identification module, fingerprint recognition region is positioned on mobile phone front screen lower section or mobile phone battery cover, and this kind of mode is deposited The problems such as Consumer's Experience is poor, cell phone appearance design is limited.

Touch screen is for the composite touch screen on the electronic products such as mobile phone, e-book, digital camera, wherein capacitive touch Control screen is one kind the most frequently used in touch screen.

Capacitance type touch control screen is operated using the electric current sensing of human body.Capacitance type touch control screen is typically one piece four layers again Glass screen is closed, when the finger of user is touched on capacitance type touch control screen, due to human body electric field, user and capacitance type touch control screen table Face is formed with a coupled capacitor（For high frequency electric, electric capacity can be considered as conductor）, then finger is from capacitance touching control The touch point of screen surfaces siphons away the electric current of a very little, and this electric current point flows in the electrode from the corner of capacitance type touch control screen Go out.The electric current for flowing through this four electrodes is directly proportional to the distance of finger to corner, and controller is by this four current ratios It is accurate to calculate, draw the position of touch point.

Existing capacitance type touch control screen as described in Figure 1, generally includes following main element：Plate on the glass substrate Indium tin oxide（ITO, Indium Tin Oxides）The nano indium tin metal oxide ITO sensors 10 of pattern；It is right The cover plate that ITO sensors shield（Cover Lens）11；For bonding ITO sensors 10 and Cover Lens' 11 Optical double-sided adhesive tape 15；For calculating touch point and returning to the flexible PCB 12 of processor, and for the aobvious of display image Display screen 13；The sensor of existing capacitance type touch control screen is in certain base material（Glass or PET）On plate nano indium tin oxide （ITO, Indium Tin Oxides), required ITO pattern is made by etching or gold-tinted technique then print Go out silver paste wire, as the respective channel of IC on connection ITO pattern and corresponding touch screen.

Utility model content

The utility model embodiment technical problem to be solved is, there is provided a kind of finger in combination with touch screen technology Line identifying system, can lift Consumer's Experience, simplify making technology, reduce product design difficulty.

In order to realize object above, the utility model provides a kind of fingerprint recognition system in combination with touch screen technology, Including：For sensing the fingerprint Identification sensor of fingerprint；The fingerprint Identification sensor is conductive pattern sensor, and its is non-immediate Contact senses.

Further, the fingerprint Identification sensor surface be provided with directly with the protection board of human contact, this protection board It can be transparent and non-transparent material.

Further, the fingerprint Identification sensor lower section arranges substrate and the fingerprint recognition core for processing sensing data Piece.

Further, the fingerprint Identification sensor directly can become one structure with the protection board of top, also can be in The substrate and fingerprint recognition integrated chip of lower section is structure as a whole.

Further, the fingerprint recognition system also includes, is connected with the fingerprint Identification sensor, for connectivity device First flexible PCB of motherboard, first flexible PCB can be in combination with the circuit board of touch-screen.

Further, the sensor of the fingerprint recognition system, protection board, the first flexible PCB and touch screen are fabricated to Integrated part.

Further, the conductive pattern sensor is ito thin film sensor.

Description of the drawings

In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.

Fig. 1 is the structural representation of existing capacitive touch screen；

Fig. 2 is a kind of example structure schematic diagram of the present utility model；

Fig. 3 is second of the present utility model enforcement structural representation；

Fig. 4 is combined front schematic diagram for the flexible PCB of the utility model first with the circuit board of touch screen；

Fig. 5 is the schematic diagram after the flexible PCB of the utility model first is combined with the circuit board of touch screen.

Specific embodiment

The utility model provides a kind of fingerprint recognition system in combination with touch screen technology, can lift Consumer's Experience, letter Change making technology, reduce product design difficulty.

Below in conjunction with the accompanying drawing in the utility model, the technical scheme in the utility model is carried out clearly and completely Description, it is clear that the described only a part of embodiment of the utility model, rather than the embodiment of whole.Based on this practicality Embodiment in new, it is every other that those of ordinary skill in the art are obtained on the premise of creative work is not made Embodiment, belongs to the scope of the utility model protection.

Fig. 1 is existing touch-control screen structure schematic diagram, including following main element：Indium tin has been plated on the glass substrate Metal oxide（ITO）The nano indium tin metal oxide of pattern is ITO sensors 10；ITO sensors are shielded Cover plate（Cover Lens）11；For bonding the optical double-sided adhesive tape 15 of ITO sensors 10 and cover plate 11；For calculating touch point simultaneously Return to the second flexible PCB 12 of processor, and for the display screen 13 of display image.

Embodiment one：

Referring to Fig. 2, show for a kind of fingerprint recognition system structure in combination with touch screen technology that the utility model is provided It is intended to；Fingerprint Identification sensor 21 for sensing fingerprint is conductive pattern sensor；Specifically, the conductive pattern sensing Device can select ito thin film sensor, the protection board 20 on the surface of fingerprint Identification sensor 21, and the protection board 20 can be Bright and non-transparent material；The lower section of fingerprint Identification sensor 21 is provided with substrate 22 and fingerprint recognition chip, fingerprint Identification sensor 21st, substrate 22 and fingerprint recognition chip can become one formula structure.It is soft that the another fingerprint Identification sensor 21 is connected with first Property circuit board 23, the first flexible PCB 23 is used for the motherboard of connectivity device.

It is before and after the first flexible PCB 23 of fingerprint recognition system is combined with the circuit board of touch screen referring to Fig. 4 and Fig. 5 Contrast schematic diagram；First flexible PCB 23 of fingerprint recognition system is directly connected into that touch sensing 40 is peripheral, and first is flexible The cabling 31 of circuit board 23 is peripheral by touch sensing 40, after integration is entered into together with the cabling 30 of former touch sensing periphery Touch screen circuit board 32 in, thus, whole system can be connected by an interface with host side.

Embodiment two：

It is when fingerprint Identification sensor 21 is directly integrated on protection board 20, then can directly to cancel referring to Fig. 3 Substrate 22, now protection board 20 also may act as the effect of fingerprint Identification sensor substrate.

Fig. 1,2 and 3 is compared, three kinds of structures are corresponded, and fingerprint Identification sensor 21 can be with nano indium tin metal oxide ITO sensors 10 combine；Protection board 20 can be with cover plate（Cover Lens）11 combine；First flexible PCB 23 can be with second Flexible PCB 12 is combined；To sum up, fingerprint recognition system can be integrated with touch screen technology.

By foregoing description, a kind of fingerprint recognition system in combination with touch screen technology at least has following excellent Point：

（1）Consumer's Experience can be lifted.Fingerprint recognition region can only be positioned over mobile phone front by existing fingerprint recognition system On screen lower section or mobile phone battery cover, there is a problem of that Consumer's Experience is poor.One kind that the utility model is provided and touch screen technology The fingerprint recognition system for combining, may be selected that identification region is placed in viewing area, meet the operating habit of user, and from Identification module cannot be observed in product appearance.

（2）Cell phone appearance design is more convenient.Existing fingerprint recognition system need to additionally take the horizontal space of product, product Appearance design cannot accomplish a kind of brief, fingerprint recognition system in combination with touch screen technology that the utility model is provided, if Space outerpace need not be additionally reserved on meter, fingerprint identification module, product design cannot be even more observed from product appearance It is not affected.

（3）Simplify host-side interface design.The flexible PCB of fingerprint recognition system is combined with touch screen flexible PCB Afterwards, whole system can be connected by an interface with host side, then host side equally need to only design an interface Meet and require.

（4）Simplify making technology.A kind of fingerprint recognition system in combination with touch screen technology that the utility model is provided, Most parts can unite two into one with the part of touch screen, enormously simplify making technology.

It should be noted that the utility model describes the one kind for the fingerprint recognition system combined with touch screen technology Product form, other meet the product of structure described in the utility model, even if material, device name, outward appearance, device put order Deng not affecting the factor of product performance to differ, the scope of the utility model protection is still fallen within.

Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to Identification is of the present utility model to be embodied as being confined to these explanations.For the ordinary skill of the utility model art For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be regarded To belong to protection domain of the present utility model.

Claims (8)

1. a kind of fingerprint recognition system in combination with touch screen technology, including for sensing the fingerprint Identification sensor of fingerprint； Characterized in that, the sensor is conductive pattern sensor.

2. a kind of fingerprint recognition system in combination with touch screen technology according to claim 1, it is characterised in that institute State fingerprint Identification sensor surface be provided with directly with the protection board of human contact, the protection board is transparent or nontransparent material Material.

3. a kind of fingerprint recognition system in combination with touch screen technology according to claim 1, it is characterised in that described Fingerprint Identification sensor lower section arranges substrate and the fingerprint recognition chip for processing fingerprint Identification sensor sensing data.

4. a kind of fingerprint recognition system in combination with touch screen technology according to claim 2, it is characterised in that described The protection board that fingerprint Identification sensor is arranged with its surface becomes one formula structure.

5. a kind of fingerprint recognition system in combination with touch screen technology according to claim 3, it is characterised in that described Fingerprint Identification sensor also can be integral type structure with the substrate and fingerprint recognition integrated chip.

6. a kind of fingerprint recognition system in combination with touch screen technology according to claim 1, it is characterised in that also wrap Include：It is connected with the fingerprint Identification sensor, for the first flexible PCB of connectivity device motherboard, first flexible electrical Road plate is combined together with the circuit board of touch-screen.

7. a kind of fingerprint recognition system in combination with touch screen technology according to claim 6, it is characterised in that described Fingerprint Identification sensor, protection board, the first flexible PCB can be fabricated to integrated part with touch screen.

8. a kind of fingerprint recognition system in combination with touch screen technology according to claim 1, it is characterised in that described Conductive pattern sensor is ito thin film sensor.