CN209543373U - Optic reflector, fingerprint recognition mould group and mobile terminal - Google Patents
Optic reflector, fingerprint recognition mould group and mobile terminal Download PDFInfo
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- CN209543373U CN209543373U CN201822025415.0U CN201822025415U CN209543373U CN 209543373 U CN209543373 U CN 209543373U CN 201822025415 U CN201822025415 U CN 201822025415U CN 209543373 U CN209543373 U CN 209543373U
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Abstract
The utility model provides a kind of optic reflector, fingerprint recognition mould group and mobile terminal.Optic reflector provided by the utility model, comprising: pedestal and light-reflecting portion；Pedestal is used to be placed in the side of screen, and light-reflecting portion is connected with pedestal, and light-reflecting portion has the reflective surface parallel with screen, with the fingerprint image for reflecting the surface from screen；Light passing chamber is offered on pedestal, light passing chamber has the first opening towards the side of light-reflecting portion, and first opening on be provided with the support portion for being used to support optical lens, the side opposite with plane where light-reflecting portion of light passing chamber is for being arranged fingerprint detection chip, the fingerprint image that light passing chamber is used to that light-reflecting portion to be made to reflect exposes to the sensing face of fingerprint detection chip via optical lens, and the inner wall of light passing chamber is extinction face.The utility model, which enables to shield lower fingerprint technique, to be applied in LCD screen.
Description
Technical field
The utility model embodiment is related to fingerprint identification technology more particularly to a kind of optic reflector, fingerprint recognition mould group
And mobile terminal.
Background technique
As the electronic devices such as mobile phone shield the arrival in epoch comprehensively, shield lower fingerprint (also referred to as light sensation screen fingerprint recognition) technology
Using more and more extensive, wherein the most universal with fingerprint under optical profile type screen.Shield the principle of lower fingerprint technique are as follows: when finger contacts
When screen, the light that screen issues penetrates screen surface and illuminates fingerprint texture, and fingerprint reflection light penetrates screen and returns to sensing
Device ultimately forms fingerprint image to be identified.
OLED (Organic Light Emitting Display, organic light emitting display) shields interior self-luminous, and screen is thick
Spend thin, and full screen structure is translucent material.Therefore, shield lower fingerprint technique in the prior art and be mainly used in OLED screen.
Specifically, imaging sensor is arranged in OLED screen, light is allowed to be perforated through OLED screen curtain using gap between OLED subpixel,
And then identify fingerprint.
Shining in existing LCD (Liquid Crystal Display, liquid crystal display) screen needs external light source, will be external
The light of light source is reflected towards LCD screen, therefore, shields lower fingerprint technique and is difficult to apply in LCD screen.
Utility model content
The utility model provides a kind of optic reflector, fingerprint recognition mould group and mobile terminal, to solve in the prior art
The technical issues of LCD screen can not be using lower fingerprint technique be shielded.
In a first aspect, the utility model provides a kind of optic reflector, comprising: pedestal and light-reflecting portion；
Pedestal is used to be placed in the side of screen, and light-reflecting portion connect with pedestal, and light-reflecting portion is with parallel with screen anti-
Smooth surface, with the fingerprint image for reflecting the surface from screen；
Light passing chamber is offered on pedestal, light passing chamber has the first opening towards the side of light-reflecting portion, and sets in the first opening
It is equipped with the support portion for being used to support optical lens, the side opposite with plane where light-reflecting portion of light passing chamber is for being arranged fingerprint inspection
Chip is surveyed, the fingerprint image that light passing chamber is used to that light-reflecting portion to be made to reflect exposes to the sensing face of fingerprint detection chip via optical lens
On, the inner wall of light passing chamber is extinction face.
As a kind of optional mode, optic reflector provided by the utility model, light passing chamber is put down with where light-reflecting portion
The opposite side in face has the second opening, and the second opening is for being arranged fingerprint detection chip.
As a kind of optional mode, optic reflector provided by the utility model, pedestal is used to be mounted on the side of screen
Side or the setting of the side of adjacent screen, and the top of pedestal is the plane parallel with reflective surface.
As a kind of optional mode, optic reflector provided by the utility model, support portion includes resettlement groove, resettlement groove
Upper to have two evacuation notches being oppositely arranged, evacuation notch is for avoiding optical lens.
As a kind of optional mode, optic reflector provided by the utility model, be provided in light-reflecting portion substrate layer with
And the reflective layer being stacked with substrate layer.
As a kind of optional mode, optic reflector provided by the utility model, light-reflecting portion further includes transparent protection
Layer, protective layer are located on the outside of reflective layer.
As a kind of optional mode, optic reflector provided by the utility model, light-reflecting portion extends to the bottom of pedestal
Lower section, and connect with the bottom of pedestal.
As a kind of optional mode, optic reflector provided by the utility model, light-reflecting portion also has light-absorption layer, extinction
Layer is located at the bottom of pedestal.
As a kind of optional mode, optic reflector provided by the utility model, reflective layer and pedestal are located at substrate layer
The same side.
As a kind of optional mode, optic reflector provided by the utility model, the edge of reflective layer and the court of pedestal
It is flushed to the one side edge of light-reflecting portion；Alternatively, reflective layer extends to the bottom part down of pedestal.
As a kind of optional mode, optic reflector provided by the utility model, reflective layer extends to the bottom of pedestal
Lower section, and reflective layer and light-absorption layer are located at different layers, protective layer is between reflective layer and light-absorption layer.
As a kind of optional mode, optic reflector provided by the utility model, reflective layer and pedestal are located at base
The opposite two sides of material layer.
As a kind of optional mode, optic reflector provided by the utility model, light-absorption layer is located at substrate layer and pedestal
Between.
As a kind of optional mode, optic reflector provided by the utility model, the material of protective layer be silica,
Silicon nitride or organic coating.
As a kind of optional mode, optic reflector provided by the utility model, the material of light-absorption layer be organic gel or
Inorganic coating.
Second aspect, the utility model provide a kind of fingerprint recognition mould group, including fingerprint recognition chip, optical lens and on
The light passing that the optic reflector stated, fingerprint recognition chip and optical lens are respectively positioned on optic reflector is intracavitary.
As a kind of optional mode, fingerprint recognition mould group provided by the utility model further includes light source, and light source setting exists
The side of screen, the fingerprint of the fingerprint identification region on screen illuminating.
The third aspect, the utility model provide a kind of mobile terminal, including above-mentioned fingerprint recognition mould group.
Optic reflector, fingerprint recognition mould group and mobile terminal provided by the utility model, optic reflector setting are reflective
Portion, light-reflecting portion have the reflective surface parallel with screen, and the fingerprint image on the surface from screen is reflected by reflective surface；Setting is opened
If the pedestal of light passing chamber, light passing chamber has the first opening towards the side of light-reflecting portion, and setting is used to support optics in the first opening
The support portion of camera lens, it is intracavitary that the fingerprint image of reflection by the first opening and optical lens exposes to light passing, and exposes to light passing
In the sensing face of fingerprint detection chip on chamber, fingerprint image is ultimately formed to be identified, is enable to shield lower fingerprint technique and be applied
In LCD screen.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of optic reflector provided by the embodiment of the utility model；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is a kind of use state diagram of optic reflector provided by the embodiment of the utility model；
Fig. 4 is the position view of pedestal and light-reflecting portion in a kind of optic reflector provided by the embodiment of the utility model
One；
Fig. 5 is the position view of pedestal and light-reflecting portion in a kind of optic reflector provided by the embodiment of the utility model
Two；
Fig. 6 is the position view of pedestal and light-reflecting portion in a kind of optic reflector provided by the embodiment of the utility model
Three；
Fig. 7 is a kind of structural schematic diagram of fingerprint recognition mould group provided by the embodiment of the utility model；
Fig. 8 is a kind of structural schematic diagram of mobile terminal provided by the embodiment of the utility model.
Description of symbols:
100-pedestals；101-light passing chambers；102-the first opening；103-support portions；1031-evacuation notches；104—
Extinction face；105-the second opening；200-light-reflecting portions；201-reflective surfaces；202-substrate layers；203-reflective layers；204-protect
Sheath；205-light-absorption layers；300-screens；400-optical lens；500-fingerprint detection chips；600-fingerprint recognition mould groups；
700-optic reflectors；800-light sources；900-mobile terminals.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
The specification and claims of the utility model and term " first ", " second ", " third " in above-mentioned attached drawing
And the (if present)s such as " 4th " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.
It should be understood that the data used in this way are interchangeable under appropriate circumstances, so as to the embodiments of the present invention energy described herein
The enough sequence implementation with other than those of illustrating or describe herein.
In addition, term " includes " and " having " and their any deformation, it is intended that covering non-exclusive includes example
Such as, the process, method, system, product or equipment for containing a series of steps or units those of are not necessarily limited to be clearly listed
Step or unit, but may include being not clearly listed or intrinsic for these process, methods, product or equipment other
Step or unit.
The principle of luminosity of LCD screen are as follows: the filling liquid crystal material between two blocks of parallel-plates changes liquid crystal material by voltage
The arrangement situation of interior molecules, image deep mixed to show to achieve the purpose that shading and light transmission, in picturesque disorder, two
The filter layer of three-primary colours is added between block plate, so that it may realize display color image.
LCD screen needs external light source, and the back of LCD screen needs that there is reflector the light of external light source is reflected towards screen
Surface.And shield the principle of lower fingerprint technique are as follows: when finger contact screen, the light that screen issues penetrates screen surface for fingerprint
Texture illuminates, and fingerprint reflection light penetrates screen Returning sensor, ultimately forms fingerprint image to be identified.Therefore, under screen
Fingerprint technique is difficult to apply in LCD screen.
So optic reflector provided by the utility model, it is intended to solve the technical problem as above of the prior art.
Optic reflector provided by the embodiment of the utility model is described in detail in conjunction with multiple examples as follows.
Fig. 1 is a kind of structural schematic diagram of optic reflector provided by the embodiment of the utility model；Fig. 2 is the vertical view of Fig. 1
Figure；Fig. 3 is a kind of use state diagram of optic reflector provided by the embodiment of the utility model.As shown in Figure 1-Figure 3, originally
The optic reflector 700 that embodiment provides, comprising: pedestal 100 and light-reflecting portion 200；
Pedestal 100 is used to be placed in the side of screen 300, and light-reflecting portion 200 and pedestal 100 connect, and light-reflecting portion 200 has
The reflective surface 201 parallel with screen 300, with the fingerprint image for reflecting the surface from screen 300；
It should be understood that Fig. 3 is only schematic illustration, in a particular embodiment, the utility model relates to the installation of pedestal 100
In the side of screen 300, it can actually refer to that pedestal 100 is particularly located at the side of screen 300 perhaps lower section or neighbouring institute
State the side setting of screen 300.For example, the thickness of screen 300 will be generally above the thickness of pedestal 100, pedestal 100 is mounted on
It is biased to the position of bottom, the i.e. position of side-lower in the one of side of screen 300.In other alternate embodiments, pedestal 100
It may be mounted at the lower section of screen 300, such as the marginal position of 300 lower section of screen.
Light passing chamber 101 is offered on pedestal 100, light passing chamber 101 has the first opening 102 towards the side of light-reflecting portion 200,
And first is provided with the support portion 103 for being used to support optical lens 400 in opening 102, light passing chamber 101 with 200 institute of light-reflecting portion
In the opposite side of plane for fingerprint detection chip 500, the fingerprint image that light passing chamber 101 is used to that light-reflecting portion 200 to be made to reflect to be arranged
As being exposed in the sensing face of fingerprint detection chip 500 via optical lens 400, the inner wall of light passing chamber 101 is extinction face 104.
When specific implementation, light-reflecting portion 200 and pedestal 100 are mounted on to the side of the screen 300 of LCD screen, made and pedestal 100
The reflective surface 201 of the light-reflecting portion 200 of connection is parallel with screen 300, and light-reflecting portion 200 and the side of screen 300 abut against, and makes anti-
Light portion 200 is between pedestal 100 and the side of screen 300.Light-reflecting portion 200 can be mounted on and be used for screen illuminating 300
Fingerprint identification region light source above.The first opening 102 is opened up in the side of light passing chamber 101 towards light-reflecting portion 200, first opens
Setting is used to support the support portion 103 of optical lens 400 on mouth 102, optical lens 400 is supported by support portion 103, by fingerprint
Detection chip 500 is mounted on the side opposite with 200 place plane of light-reflecting portion of light passing chamber 101.
Specifically, the first opening 102 can be rectangle, circle, ellipse or irregular shape, as long as the first opening
102 energy light transmissions, this is not restricted for the present embodiment.Support portion 103 is used to support optical lens 400, the branch of support portion 103
Support face can match with the outside of optical lens 400, so that being supported on support portion 103 of can consolidating of optical lens 400.It is logical
It the side opposite with 200 place plane of light-reflecting portion of optical cavity 101, can be in light passing chamber 101 for fingerprint detection chip 500 to be arranged
Inner sidewall be arranged fingerprint detection chip 500, in this way, the fingerprint image into light passing chamber 101 can expose to light passing chamber 101 in time
On fingerprint detection chip 500 sensing face on；It can also be by one opposite with 200 place plane of light-reflecting portion of light passing chamber 101
Side is set as transparent surface, and fingerprint detection chip 500 is arranged in the outside of the transparent surface, in this way, being easily installed fingerprint detection core
Piece 500.
When finger contact screen 300, the light of LCD screen external light source is reflected towards the surface of screen 300, and penetrates screen
The fingerprint texture of fingerprint identification region is illuminated on 300 surfaces, independent light source can also be arranged in the side of LCD screen, independent
The light of light source is reflected towards the surface of screen 300, and the fingerprint image on the surface from screen 300 passes through the reflective surface of light-reflecting portion 200
201 reflex at the first opening 102, and through being exposed at the first opening 102 by the optical lens 400 that support portion 103 supports
It in light passing chamber 101, and exposes in the sensing face of the fingerprint detection chip 500 on light passing chamber 101, ultimately forms fingerprint image
It is identified, enables to shield lower fingerprint technique and apply in LCD screen.
In the present embodiment, light-reflecting portion 200 is set, and light-reflecting portion 200 has the reflective surface 201 parallel with screen 300, passes through
The fingerprint image on surface of the reflection of reflective surface 201 from screen 300；The pedestal 100 for opening up light passing chamber 101, light passing chamber 101 are set
There is the first opening 102 towards the side of light-reflecting portion 200, setting is used to support the support of optical lens 400 in the first opening 102
The fingerprint image in portion 103, reflection is exposed in light passing chamber 101 by the first opening 102 and optical lens 400, and is exposed to logical
In the sensing face of fingerprint detection chip 500 on optical cavity 101, fingerprint image is ultimately formed to be identified, makes to shield lower fingerprint skill
Art can be applied in LCD screen.Extinction face 104 is set by the inner wall surface in light passing chamber 101, it is miscellaneous that extinction face 104 reduces light
The interference of news.
In a kind of concrete implementation mode, the side opposite with 200 place plane of light-reflecting portion of light passing chamber 101 has the
Two openings 105, the second opening 105 is for being arranged fingerprint detection chip 500.By the way that the second opening is arranged on light passing chamber 101
105, facilitate installation fingerprint detection chip 500.When specific implementation, can directly fingerprint detection chip 500 be covered and will be fixed
In the second opening 105, to install fingerprint detection chip 500；It can also set step-like for the second opening 105 to open
Mouthful, fingerprint detection chip 500 be embedded in simultaneously is fixed on the step surface of the second opening 105, the upper surface of fingerprint detection chip 500 with
The upper surface of second opening 105 is concordant, in this way, fingerprint detection chip 500 is not easily to fall off.Wherein, fingerprint detection chip 500 with
The fixed form of second opening 105 can be bonding, or other types of connection type, the present embodiment are no longer superfluous herein
It states.
Optionally, pedestal 100 is used to be mounted on the side of screen 300 or the side setting of adjacent screen 300, and pedestal
100 top is the plane parallel with reflective surface 201.In specific implementation, the top of pedestal 100 can be used for installing fingerprint
Detection chip 500, that is to say, that fingerprint detection chip 500 is parallel with reflective surface 201, in this way, the fingerprint that reflective surface 201 reflects
Image is exposed in light passing chamber 101 by the first opening 102 and optical lens 400, and can expose to the finger on light passing chamber 101
In the sensing face of line detection chip 500.When specific implementation, the top of pedestal 100 can be concordant with reflective surface 201, pedestal 100
Top can be higher or lower than reflective surface 201, and the present embodiment is not limited thereto.
Support portion 103 is used to support optical lens 400, for the support optical lens 400 for keeping support portion 103 firm.
In a kind of concrete implementation mode, support portion 103 includes resettlement groove, has two evacuation notches being oppositely arranged on resettlement groove
1031, evacuation notch 1031 is for avoiding optical lens 400.Specifically, the shape of evacuation notch 1031 can be according to optical frames
First 400 lateral surface setting, for example, evacuation notch 1031 can match with the lateral surface of optical lens 400, in this way, making light
It learns camera lens 400 to be embedded in support portion 103, so that the support optical lens 400 that support portion 103 can consolidate.
Fig. 4 is the position view of pedestal and light-reflecting portion in a kind of optic reflector provided by the embodiment of the utility model
One；Fig. 5 is pedestal and the position view of light-reflecting portion two in a kind of optic reflector provided by the embodiment of the utility model；Fig. 6
For pedestal and the position view of light-reflecting portion three in a kind of optic reflector provided by the embodiment of the utility model.Such as Fig. 4-Fig. 6
It is shown, optic reflector 700 provided in this embodiment, be provided in light-reflecting portion 200 substrate layer 202 and with 202 layers of substrate layer
The reflective layer 203 of folded setting.That is, light-reflecting portion 200 is divided to for two layers, first layer is substrate layer 202, in substrate layer
Reflective layer 203 is laminated on 202, to form light-reflecting portion 200, substrate layer 202 is used to support reflective layer 203, and reflective layer 203 is used for
It is reflective.Wherein, reflective surface 201 can be used as reflective layer 203.
Specifically, substrate layer 202 can be opaque, it can also be with light transmission.The material of substrate layer 202 can for silicon wafer, glass,
Metal plate, ceramics or organic material, 202 shape of substrate layer is unlimited, substrate layer 202 with a thickness of hundred micron orders, for example, substrate layer
202 with a thickness of 200 microns.Sputter can be passed through on substrate layer 202, vapor deposition, printing, deposit the processing methods production such as silver-plated
Reflective layer 203.The mirror surfaces reflectorized material such as aluminium, silver can be used in the material of reflective layer 203, and the present embodiment does not limit herein
It is fixed.The thickness of reflective layer 203 be usually point a micron order, such as reflective layer 203 with a thickness of 0.2um.
In order to protect reflective layer 203, further, light-reflecting portion 200 further includes transparent protective layer 204, and protective layer 204
In 203 outside of reflective layer.Protective layer 204 avoids reflective layer 203 from being damaged for protecting reflective layer 203.
Optionally, the material of protective layer 204 is silica, silicon nitride or organic coating.
Specifically, can be made by processing methods such as chemical vapor deposition, gluing, printings in the outside of reflective layer 203
Protective layer 204.The thickness of protective layer 204 is usually micron order, for example, protective layer 204 with a thickness of 1um.
Optionally, light-reflecting portion 200 extends to the bottom part down of pedestal 100, and connect with the bottom of pedestal 100.Namely
It says, the link position of light-reflecting portion 200 and pedestal 100 is the bottom of pedestal 100.Specifically, light-reflecting portion 200 has three layers, respectively
For substrate layer 202 and the reflective layer being stacked with substrate layer 202 203, the protective layer 204 in 203 outside of reflective layer, pedestal
100 can connect with substrate layer 202, reflective layer 203 or protective layer 204.
In specific implementation, light-reflecting portion 200 also has a light-absorption layer 205, and light-absorption layer 205 is located at the bottom of pedestal 100.When reflective
Portion 200 and when being connect with the bottom of pedestal 100, if the bottom of the light passing chamber 101 of pedestal 100 and pedestal 100 is connected, anti-
Light-absorption layer 205 in light portion 200, and light-absorption layer 205 is located at the bottom of pedestal 100, so as to can be inhaled in the region of light passing chamber 101
Light, to reduce the interference of light noise in light passing chamber 101.
Optionally, the material of light-absorption layer 205 is organic gel or inorganic coating.Added by gluing, silk-screen, chromium plating, anode etc.
Work mode makes light-absorption layer 205.
Due to light-reflecting portion 200 have substrate layer 202, reflective layer 203, protective layer 204 and light-absorption layer 205, light-reflecting portion 200 with
Relative position between pedestal 100 also can have diversified forms, below to the various phases between light-reflecting portion 200 and pedestal 100
Position is described in detail.
As shown in figure 4, the first opposite position between light-reflecting portion 200 and pedestal 100 specifically:
Reflective layer 203 and pedestal 100 are located at the same side of substrate layer 202, and reflective layer 203 extends to the bottom of pedestal 100
Lower section, specifically, substrate layer 202, reflective layer 203 and protective layer 204 are cascading, the top of protective layer 204, which is arranged, inhales
Photosphere 205, light-absorption layer 205 are located at the bottom of pedestal 100, that is to say, that light-absorption layer 205 is located at bottom and the protection of pedestal 100
Between layer 204, light-absorption layer 205 and the setting of 203 different layers of reflective layer, protective layer 204 be located at reflective layer 203 and light-absorption layer 205 it
Between.In this way, sequentially forming substrate layer 202, reflective layer 203, protective layer 204, light-absorption layer 205 and pedestal 100 in production.System
Simple process is made, the accuracy of manufacture is high.
As shown in figure 5, second of opposite position between light-reflecting portion 200 and pedestal 100 specifically:
Reflective layer 203 and pedestal 100 are located at the same side of substrate layer 202, the edge of reflective layer 203 and the court of pedestal 100
It is flushed to the one side edge of light-reflecting portion 200, specifically, light-absorption layer 205 and reflective is arranged between substrate layer 202 and protective layer 204
Layer 203, light-absorption layer 205 and the setting of 203 same layer of reflective layer.In production, the light-absorption layer 205 of same layer is formed on substrate layer 202
With reflective layer 203, on light-absorption layer 205 and reflective layer 203 formed protective layer 204, on protective layer 204 with 205 phase of light-absorption layer
Pair part formed pedestal 100.In this way, light-absorption layer 205 and 203 same layer of reflective layer are arranged, reduce costs.
As shown in fig. 6, the third opposite position between light-reflecting portion 200 and pedestal 100 specifically:
Reflective layer 203 and pedestal 100 are located at the opposite two sides of substrate layer 202, and light-absorption layer 205 is located at substrate layer
Between 202 and pedestal 100, reflective layer 203 is between pedestal 100 and protective layer 204.In production, the one of substrate layer 202
Side is cascading reflective layer 203 and protective layer 204, is cascading extinction in the opposite side of substrate layer 202
Layer 205 and pedestal 100.
Fig. 7 is a kind of structural schematic diagram of fingerprint recognition mould group provided by the embodiment of the utility model.As shown in fig. 7,
On the basis of the various embodiments described above, the present embodiment also provides a kind of fingerprint recognition mould group 600, including fingerprint recognition chip 500,
Optical lens 400 and optic reflector provided by the above embodiment 700, fingerprint recognition chip 500 and the equal position of optical lens 400
In in the light passing chamber 101 of optic reflector 700.
Wherein, the structure and working principle of optic reflector 700 are described in detail in the above-described embodiments, herein not
It repeats one by one.
Optionally, fingerprint recognition mould group 600 provided in this embodiment, further includes light source 800, and light source 800 is arranged in screen
300 side, the fingerprint of the fingerprint identification region on screen illuminating 300.Specifically, light source 800 is located at light-reflecting portion 200
Lower section.
When specific implementation, the light-reflecting portion 200 of optic reflector 700 and pedestal 100 are mounted on the screen 300 of LCD screen
Side keeps the reflective surface 201 of the light-reflecting portion 200 connected with pedestal 100 parallel with screen 300, light-reflecting portion 200 and screen 300
Side abuts against, and makes light-reflecting portion 200 between pedestal 100 and the side of screen 300.In light passing chamber 101 towards light-reflecting portion
200 side opens up the first opening 102, and setting is used to support the support portion 103 of optical lens 400 in the first opening 102, passes through
Support portion 103 supports optical lens 400, and fingerprint detection chip 500 is mounted on putting down with where light-reflecting portion 200 for light passing chamber 101
The opposite side in face.
Arrow direction in Fig. 7 shows the trend of optical path, specifically, the fingerprint recognition on 800 screen illuminating 300 of light source
The fingerprint image of the fingerprint in region, the surface from screen 300 reflexes to the first opening by the reflective surface 201 of light-reflecting portion 200
At 102, and through being exposed in light passing chamber 101 at the first opening 102 by the optical lens 400 that support portion 103 supports, and irradiate
In the sensing face of fingerprint detection chip 500 on to light passing chamber 101, fingerprint image is ultimately formed to be identified.
By the way that individual light source 800 is arranged come the fingerprint of the fingerprint identification region on screen illuminating 300, make the light in Fig. 7
Moving towards for road is more accurate.
Fig. 8 is a kind of structural schematic diagram of mobile terminal provided by the embodiment of the utility model.As shown in figure 8, above-mentioned
On the basis of each embodiment, the present embodiment also provides a kind of mobile terminal 900, including above-mentioned fingerprint recognition mould group 600.
Wherein, the structure of fingerprint recognition mould group 600 and working principle are described in detail in the above-described embodiments, herein
It does not repeat one by one.
In the present embodiment, which can be liquid crystal display panel, Electronic Paper, Organic Light Emitting Diode (Organic
Light-Emitting Diode, OLED) panel, mobile phone, tablet computer, television set, display, laptop, digital phase
Any products or components having a display function such as frame, navigator, wearable device or household appliance.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (18)
1. a kind of optic reflector characterized by comprising pedestal and light-reflecting portion；
The pedestal is used to be placed in the side of screen, and the light-reflecting portion connect with the pedestal, and the light-reflecting portion with
The parallel reflective surface of the screen, with the fingerprint image for reflecting the surface from the screen；
Light passing chamber is offered on the pedestal, the light passing chamber has the first opening towards the side of the light-reflecting portion, and described
Be provided with the support portion for being used to support optical lens in first opening, the light passing chamber it is opposite with plane where the light-reflecting portion
Side for being arranged fingerprint detection chip, the light passing chamber is used to make the fingerprint image of the light-reflecting portion reflection via the light
It learns camera lens to expose in the sensing face of the fingerprint detection chip, the inner wall of the light passing chamber is extinction face.
2. optic reflector according to claim 1, which is characterized in that the light passing chamber is put down with the light-reflecting portion place
The opposite side in face has the second opening, and second opening is for being arranged the fingerprint detection chip.
3. optic reflector according to claim 2, which is characterized in that the pedestal is used to be mounted on the side of the screen
Face or the side of the neighbouring screen are arranged, and the top of the pedestal is the plane parallel with the reflective surface.
4. optic reflector according to claim 1, which is characterized in that the support portion includes resettlement groove, the placement
There are two evacuation notches being oppositely arranged, the evacuation notch is for avoiding the optical lens on slot.
5. optic reflector according to claim 1, which is characterized in that be provided in the light-reflecting portion substrate layer and with
The reflective layer that the substrate layer is stacked.
6. optic reflector according to claim 5, which is characterized in that the light-reflecting portion further includes transparent protective layer,
The protective layer is located on the outside of the reflective layer.
7. optic reflector according to claim 6, which is characterized in that the light-reflecting portion extends to the bottom of the pedestal
Lower section, and connect with the bottom of the pedestal.
8. optic reflector according to claim 7, which is characterized in that the light-reflecting portion also has light-absorption layer, light-absorption layer
Positioned at the bottom of the pedestal.
9. optic reflector according to claim 7, which is characterized in that the reflective layer and the pedestal are located at the base
The same side of material layer.
10. optic reflector according to claim 9, which is characterized in that the edge of the reflective layer and the pedestal
It is flushed towards the one side edge of the light-reflecting portion；Alternatively, the reflective layer extends to the bottom part down of the pedestal.
11. optic reflector according to claim 8, which is characterized in that the reflective layer extends to the bottom of the pedestal
Below portion, and the reflective layer and the light-absorption layer are located at different layers, and the protective layer is located at the reflective layer and the extinction
Between layer.
12. optic reflector according to claim 8, which is characterized in that the reflective layer and the pedestal are located at
The opposite two sides of the substrate layer.
13. optic reflector according to claim 12, which is characterized in that the light-absorption layer is located at the substrate layer and institute
It states between pedestal.
14. according to the described in any item optic reflectors of claim 6-10, which is characterized in that the material of the protective layer is two
Silica, silicon nitride or organic coating.
15. optic reflector according to claim 8, which is characterized in that the material of the light-absorption layer is organic gel or nothing
Machine coating.
16. a kind of fingerprint recognition mould group, which is characterized in that appoint including fingerprint recognition chip, optical lens and claim 1-11
Optic reflector described in one, the fingerprint recognition chip and the optical lens are respectively positioned on the light passing of the optic reflector
It is intracavitary.
17. fingerprint recognition mould group according to claim 16, which is characterized in that further include light source, the light source setting exists
The side of screen, the fingerprint of the fingerprint identification region on screen illuminating.
18. a kind of mobile terminal, which is characterized in that including fingerprint recognition mould group described in claim 16 or 17.
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| CN201822025415.0U CN209543373U (en) | 2018-12-04 | 2018-12-04 | Optic reflector, fingerprint recognition mould group and mobile terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109690366A (en) * | 2018-12-04 | 2019-04-26 | 深圳市汇顶科技股份有限公司 | Optic reflector, fingerprint recognition mould group, mobile terminal and reflector packaging method |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109690366A (en) * | 2018-12-04 | 2019-04-26 | 深圳市汇顶科技股份有限公司 | Optic reflector, fingerprint recognition mould group, mobile terminal and reflector packaging method |
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