CN108683756B - Fingerprint recognition component, display device and electronic device - Google Patents
Fingerprint recognition component, display device and electronic device Download PDFInfo
- Publication number
- CN108683756B CN108683756B CN201810364492.0A CN201810364492A CN108683756B CN 108683756 B CN108683756 B CN 108683756B CN 201810364492 A CN201810364492 A CN 201810364492A CN 108683756 B CN108683756 B CN 108683756B
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- China
- Prior art keywords
- fingerprint
- guide panel
- light guide
- light
- mould group
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Image Input (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a kind of fingerprint recognition components, it includes light guide panel, an at least active light source and at least a fingerprint mould group, at least one active light source is set to the wherein one side of light guide panel described in face, the other side for the correspondence active light source that at least one fingerprint mould group is set to the light guide panel, the fingerprint contact surface for fingerprint pressing is provided in the light guide panel, the light that at least one active light source issues is behind the side in the internal reflection of the light guide panel, it is radiated on the fingerprint contact surface for being pressed with fingerprint to be identified, and it is totally reflected with the fingerprint to be identified, the light of the total reflection light guide panel is incident on at least one fingerprint mould group, the at least one fingerprint mould group obtains according to the light of the total reflection and identifies fingerprint image.The present invention also provides a kind of display devices for being provided with the fingerprint recognition component, and are provided with the electronic device of the display device.
Description
Technical field
The present invention relates to field of electronic device more particularly to a kind of fingerprint recognition component, it is provided with the fingerprint recognition group
The display device of part, and it is provided with the electronic device of the display device.
Background technique
With the rapid development of biological identification technology, fingerprint identification technology has been widely used in such as smart phone, plate
On the electronic devices such as computer.Existing fingerprint recognition component can be mainly divided into capacitance type fingerprint recognizer component, optical fingerprint
Recognizer component, heat seeking fingerprint recognition component and ultrasonic fingerprint recognizer component etc., and optical fingerprint recognizer component due to
The factors such as manufacturing cost is low, yields is high have become most widely used fingerprint recognition component.
The fingerprint identification module of fingerprint recognition component on existing smart phone is generally disposed at the smart phone
Front, therefore, the fingerprint recognition component have tied up the area of display screen, are unfavorable for improving the screen accounting of smart phone.
Summary of the invention
The purpose of the present invention is to provide a kind of fingerprint recognition component of screen accounting that can improve electronic device, settings
The display device of fingerprint recognition component is stated, and is provided with the electronic device of the display device.
In order to solve the above-mentioned technical problems, the present invention provides a kind of fingerprint recognition components comprising light guide panel, at least
One active light source and at least a fingerprint mould group, at least one active light source are set to light guide panel described in face wherein
One side, the other side for the correspondence active light source that at least one fingerprint mould group is set to the light guide panel are described
The fingerprint contact surface for fingerprint pressing is provided in light guide panel, the light that at least one active light source issues passes through institute
The internal reflection behind side in the light guide panel is stated, is radiated on the fingerprint contact surface for being pressed with fingerprint to be identified, and with
The fingerprint to be identified is totally reflected, and the light of the total reflection light guide panel is incident on at least one fingerprint mould group, until
A few fingerprint mould group obtains according to the light of the total reflection and identifies fingerprint image.
The present invention also provides a kind of display devices comprising display screen and fingerprint recognition component, the fingerprint recognition group
Part includes light guide panel, at least an active light source and at least a fingerprint mould group, at least one active light source are set to just
To the wherein one side of the light guide panel, the correspondence active that at least one fingerprint mould group is set to the light guide panel
The other side of formula light source is provided with the fingerprint contact surface for fingerprint pressing in the light guide panel, and at least one is described active
The light that light source issues, in the internal reflection of the light guide panel, is radiated at the institute for being pressed with fingerprint to be identified behind the side
State on fingerprint contact surface, and be totally reflected with the fingerprint to be identified, it is described total reflection light guide panel light be incident on to
A few fingerprint mould group, at least one fingerprint mould group obtain according to the light of the total reflection and identify fingerprint image.
The present invention also provides a kind of electronic devices comprising shell, the intracorporal mainboard of the shell being set to, Yi Jixian
Showing device, the display device are set on the shell, and the display device is electrically connected at the mainboard, the display dress
It sets including display screen and fingerprint recognition component, the fingerprint recognition component includes light guide panel, an at least active light source and extremely
A few fingerprint mould group, at least one active light source are set to the wherein one side of light guide panel described in face, at least one institute
The other side that fingerprint mould group is set to the correspondence active light source of the light guide panel is stated, is provided in the light guide panel
For the fingerprint contact surface of fingerprint pressing, the light that at least one active light source issues is led after passing through the side described
The internal reflection of optic panel is radiated on the fingerprint contact surface for being pressed with fingerprint to be identified, and is sent out with the fingerprint to be identified
The light of raw total reflection, the total reflection light guide panel is incident on at least one fingerprint mould group, at least one fingerprint mould group
It is obtained according to the light of the total reflection and identifies fingerprint image.
The display screen upper cover of invention display device is equipped with the light guide panel, at least one active light source
It is set to the lateral position of light guide panel described in face, at least one fingerprint mould group is set to the correspondence of the light guide panel
The side of at least one active light source.Since the light guide panel is the cover board of the display screen, at least one active
Formula light source and at least one fingerprint Mo Zu are located at the opposite two sides of the light guide panel respectively, and therefore, the fingerprint mould group is not
The area for occupying the display screen is conducive to improve screen accounting.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the present invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram for the display device that the first embodiment of the present invention provides.
Fig. 2 is the enlarged drawing of the part II in Fig. 1.
Fig. 3 is the positive structure schematic for the display device that the first embodiment of the present invention provides.
Fig. 4 is the structural schematic diagram for the display device that the second embodiment of the present invention provides.
Fig. 5 is the structural schematic diagram for the display device that the third embodiment of the present invention provides.
Fig. 6 is the electronic device construction schematic diagram that the fourth embodiment of the present invention provides.
Fig. 7 is the electronic device construction schematic diagram that the fifth embodiment of the present invention provides.
Fig. 8 is the electronic device construction schematic diagram that the sixth embodiment of the present invention provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under that premise of not paying creative labor
Embodiment shall fall within the protection scope of the present invention.
In the description of the embodiment of the present invention, it is to be understood that the orientation of instructions such as term " on ", "lower" " left side " " right side " or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without
It is not to imply or device or element that instruction is signified must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.
In the description of the embodiment of the present invention, it is to be understood that the orientation or positional relationship of the instructions such as term " thickness " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than imply or refer to
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.
It is the structural schematic diagram for the display device that the first embodiment of the present invention provides also referring to Fig. 1 and Fig. 2, Fig. 1；
Fig. 2 is the enlarged drawing of the part II in Fig. 1.The present invention provides a kind of display device 10 comprising a display screen 20 and a fingerprint are known
Other component 40, the fingerprint recognition component 40 include a light guide panel 42, at least an active light source 44 and an at least fingerprint mould
Group 46.At least one active light source 44 is set to wherein one side 420 of light guide panel 42 described in face, at least described in one
Fingerprint mould group 46 is set to the other side of the active light source 44 of correspondence at least one of the light guide panel 42, at least described in one
Active light source 44 and at least one fingerprint mould group 46 are located at the opposite two sides of the light guide panel 42.The light guiding surface
Plate 42 is provided for a fingerprint contact surface 421 of fingerprint pressing, the light guide panel 42 far from the side of the display screen 20
Side facing away from the fingerprint contact surface 421 is medial surface 422, and the display screen 20 is located at the light guide panel 42 facing away from described
The side of fingerprint contact surface 421, that is, the medial surface 422 of the light guide panel 42 is covered on the display screen 20.At least one institute
The light for stating the sending of active light source 44 passes through the side 420 and is incident in the light guide panel 42, through the light guide panel
42 internal reflection is radiated on the fingerprint contact surface 421 for being pressed with fingerprint to be identified, and is occurred with the fingerprint to be identified
Total reflection, the light of the total reflection are incident on at least one fingerprint mould group 46, and at least one fingerprint mould group 46 is according to institute
The light for stating total reflection obtains and identifies fingerprint image.
Display device 10 of the invention can be installed on any electronic equipment, that is, the display device 10 can be installed
In the intelligence such as smart phone, tablet computer, electronic reader, laptop, mobile unit, Web TV, wearable device
In equipment.In the present embodiment, the display device 10 is used for smart phone.
In the present embodiment, the light guide panel 42 is described to lead as the cover board on the display screen 20 of the display device 10
Optic panel 42 includes a protective layer 424 and an inductive layer 425, and the inductive layer 425 is set to the protective layer 424 facing away from described
The side of fingerprint contact surface 421, that is, the inductive layer 425 is set on the medial surface 422；The fingerprint contact surface 421 is set
The protective layer 424 is placed in facing away from the side of the inductive layer 425, that is, the inductive layer 425 is set to the medial surface
On 422.
The protective layer 424 is hyaline layer, it is preferred that the protective layer 424 is toughened glass layer.The toughened glass layer
Thickness should be greater than 0.8mm, it is preferred that the toughened glass layer with a thickness of 0.9mm.
The display screen 20 can be OLED display screen or LCD display, and in the present embodiment, the display screen 20 is OLED
Display screen.
At least one active light source 44 is infrared light sources, specifically, at least one active light source 44 is close
Infrared light sources.
20 upper cover of display screen of the display device of that present invention 10 is equipped with the light guide panel 42, at least one active light source
44 are set at the side 420 of light guide panel 42 described in face, and at least one fingerprint mould group 46 is set to the leaded light
The side of the active light source 44 of the correspondence of panel 42 at least one, the light that at least one active light source 44 issues pass through
Internal reflection of the side 420 through the light guide panel 42, is radiated at the fingerprint contact surface 421 for being pressed with fingerprint to be identified
On, and be totally reflected with the fingerprint to be identified, the inside through the light guide panel 42 is incident again for the light of the total reflection
To at least one fingerprint mould group 46, at least one fingerprint mould group 46 obtains according to the light of the total reflection and identifies fingerprint
Image.Since the light guide panel 42 is the cover board of the display screen 20, at least one active light source 44 and at least one institute
It states fingerprint mould group 46 and is located at the opposite two sides of the light guide panel 42, therefore, the fingerprint mould group 46 is not take up described aobvious
The area of display screen 20 is conducive to improve screen accounting.
At least one fingerprint mould group 46 is located at the light guide panel 42 facing away from the side of the fingerprint contact surface 421, that is,
The display screen 20 and at least one fingerprint mould group 46 are located at the ipsilateral of the light guide panel 42.It is described aobvious in the present embodiment
Display screen 20 is located between the light guide panel 42 and at least one fingerprint mould group 46.
It is provided with an inclined reflecting surface 423 at the fingerprint mould group 46 of face at least one in the light guide panel 42, until
The light that a few active light source 44 issues passes through the side 420 and is incident to 42 inside of light guide panel and carries out anti-
Penetrate, be radiated on the fingerprint contact surface 421 and be totally reflected with the fingerprint to be identified, it is described total reflection pass through again described in lead
In on the reflecting surface 423, the light of the total reflection enters the internal irradiation of optic panel 42 after the reflection of the reflecting surface 423
Penetrate the fingerprint mould group 46.The reflecting surface 423 be located at the light guide panel 42 fingerprint contact surface 421 and the light guide panel
The intersection of the side of the 42 neighbouring at least one fingerprint mould groups 46, that is, the reflecting surface 423 is the fingerprint contact surface 421
With the light guide panel 42 adjacent to the chamfering of the intersection of the side of the fingerprint mould group 46.The reflecting surface 423 and the finger
The value range of included angle A between line contact surface 421 is greater than 0 degree less than 90 degree, it is preferred that the included angle A value range be 30 to
Between 60 degree.In the present embodiment, the angle of the included angle B is 45 degree.
The surface of the reflecting surface 423 is smooth, that is, the surface roughness value of the reflecting surface 423 is less.The present embodiment
In, the surface roughness Ra < 10um of the reflecting surface 423.
A reflecting layer 426 is coated on the reflecting surface 423, the reflecting layer 426 can be such that the reflecting surface 423 has
High reflectance, the reflecting layer 426 can be aluminium powder layer, silver powder layer or infrared reflecting paint layer etc.,
In the present embodiment, aluminium powder layer is coated on the reflecting surface 423.
The surface that the reflecting layer 426 faces the light guide panel 42 is smooth, that is, the reflecting layer 426 faces described lead
The surface roughness value of optic panel 42 is less, and in the present embodiment, the reflecting layer 426 faces the surface of the light guide panel 42
Roughness Ra < 10um.
The light guide panel 42 is facing away from being provided with a decorative layer 427 on the surface of the fingerprint mould group 46, it is seen that light energy
Through the decorative layer 427, transmitance of the infrared light on the decorative layer 427 is greater than 80%.The decorative layer 427 is used for
It blocks, that is, visually see the internal structure less than the display device 10 from the outer surface of the light guide panel 42.
In the present embodiment, decorative layer 427, the decorative layer are coated on the fingerprint contact surface 421 of the light guide panel 42
427 connect with the reflecting layer 426.The decorative layer 427 is the light color formed in the light guide panel 42 by silk-screen
Can light transmission ink layer, undope in the ink layer diffusion particle.
In other embodiments, the decorative layer 427, which is also possible to apply, is set to the light guide panel 42 facing away from the fingerprint
The decorative layer 427 is provided on the side of contact surface 421 or two sides that the light guide panel 42 is opposite.
In other embodiments, the decorative layer 427 can be set in the light guide panel 42 by modes such as air brushing.
In other embodiments, it can only be corresponded at least on one side of the protective layer 424 facing away from the inductive layer 425
The decorative layer 427 is coated at the one fingerprint mould group 46.
At least one fingerprint mould group 46 includes an imaging sensor 461 and a fingerprint controller 462, at least one master
The light that dynamic formula light source 44 issues passes through the inside that the side 420 enters the light guide panel 42, and in the light guide panel
It reflects between 42 fingerprint contact surface 421 and medial surface 422, is pressed with described in fingerprint to be identified when light is radiated at repeatedly
It when on fingerprint contact surface 421, can be totally reflected with the fingerprint to be identified, the total reflection is again through the light guide panel 42
It is exposed on the reflecting surface 423 after internal reflection repeatedly or the light of the total reflection is directly transmitted to the reflection
On face 423, the light of the total reflection is reflexed to described image sensor 461, described image sensor by the reflecting surface 423
461 receive the light of the total reflection and obtain fingerprint image, and the fingerprint controller 462 identifies described image sensor 461
The fingerprint image sent.
In use, the display device 10 is installed on the shell of an electronic device, as smart phone shell on, until
A few active light source 44 and at least one fingerprint mould group 46 are respectively arranged on the opposite two sidewalls of the shell, until
The side 420 of light guide panel 42 described in few 44 face of active light source, the display screen 20 are set in the shell,
The light guide panel 42 is covered on the display screen 20.The fingerprint of the light guide panel 42 is contacted with the finger of fingerprint to be identified
Contact surface 421, the inductive layer 425 of the light guide panel 42 send a signal to the fingerprint controller 462, the fingerprint controller
462 receive signal and control at least one unlatching of active light source 44, the light that at least one active light source 44 issues
Enter the inside of the light guide panel 42 across the side 420, and in the internal reflection of the light guide panel 42, is radiated at pressure
Have on the fingerprint contact surface 421 of fingerprint to be identified, and be totally reflected with the fingerprint to be identified, the total reflection passes through again
It is incident to after the internal reflection of the light guide panel 42 on the reflecting surface 423 or the light of the total reflection is directly incident
On to the reflecting surface 423, the light of the total reflection is reflexed to described image sensor 461 by the reflecting surface 423, described
Imaging sensor 461 receives the light of the total reflection and obtains fingerprint image, and the fingerprint controller 462 identifies described image
The fingerprint image that sensor 461 is sent.
Referring to Fig. 3, Fig. 3 is the positive structure schematic for the display device that the first embodiment of the present invention provides.It is described
In first embodiment, the left and right sides of the light guide panel 42 is respectively arranged with several active light sources 44 and several fingerprints
Mould group 46, the side 420 of light guide panel 42 described in the equal face of several active light sources 44, several active light sources 44
It is corresponded with several fingerprint mould groups 46.The reflecting surface 423 is set to the light guide panel 42 adjacent to described active
The intersection of the side of light source 44 and the fingerprint contact surface 421, that is, the reflecting surface 423 is that the light guide panel 42 is neighbouring
The chamfering of the side of the active light source 44 and the intersection of the fingerprint contact surface 421.
Referring to Fig. 4, Fig. 4 is the structural schematic diagram for the display device that the second embodiment of the present invention provides.Of the invention
The structure of display device of structure and first embodiment of the display device of second embodiment is similar, the difference is that:
In two embodiments, the top of light guide panel 42 is provided with several active light sources 44, and several difference of active light sources 44 are just
To the top side face of the light guide plate 42, the bottom of the light guide panel 42 is provided with several fingerprint mould groups 46, several described
Active light source 44 and several fingerprint mould groups 46 correspond.Reflecting surface be set to the bottom side of the light guide panel 42 with
The intersection of fingerprint contact surface 421, that is, reflecting surface is the bottom side of the light guide panel 42 and the intersection of fingerprint contact surface 421
The chamfering at place.
Referring to Fig. 5, Fig. 5 is the structural schematic diagram for the display device that the third embodiment of the present invention provides.Of the invention
The structure of display device of structure and first embodiment of the display device of 3rd embodiment is similar, the difference is that:
In three embodiments, there are two active light sources 44 for setting at the opposite two corners in the top of light guide panel 42, and two described active
The top side face of light guide panel 42 described in the equal face of light source 44, there are two fingerprints for setting at the opposite two corners in the bottom of light guide panel 42
Mould group 46, two active light sources 44 and two fingerprint mould groups 46 correspond.Reflecting surface is set to the leaded light
The bottom side of panel 42 and the intersection of fingerprint contact surface 421, that is, reflecting surface is the bottom side and fingerprint of the light guide panel 42
The chamfering of the intersection of contact surface 421.
Referring to Fig. 6, Fig. 6 is the electronic device construction schematic diagram that the fourth embodiment of the present invention provides.The present invention provides
Electronic device 100 include a shell 50, the mainboard 60 that is set in the shell 50 and above-mentioned display device 10,
The display device 10 is set to the shell 50 facing away from the side of the mainboard 60, and the display device 10 is electrically connected at institute
State mainboard 60.
The shell 50 includes a center 52, and the center 52 includes opposite two sidewalls 520, and is connected to two institutes
State the support plate 525 between side wall 520.The display screen 20 of the display device 10 is set in the support plate 525, and position
Between two side walls 520, the mainboard 60 is set to the support plate 525 facing away from the side of the display screen 20, and
Between two side walls 520.The active light source 44 and the fingerprint mould group 46 are respectively arranged at two sides
On wall 520, the light guide panel 42 is covered on the display screen 20, and the inductive layer 425 of the light guide panel 42 contacts described
Display screen 20, and the light guide panel 42 is located between two side walls 520.The display screen 20 is located at the light guide panel
Between 42 and the fingerprint mould group 46.
An accepting hole 521 wherein is offered at the side 420 of light guide panel 42 described in the medial surface face of one side wall 520,
Another side wall 520 faces and offers another accepting hole 522, the active light source 44 and institute on the side of the light guide panel 42
Fingerprint mould group 46 is stated to be respectively accommodated in the accepting hole 521,522.The light that the active light source 44 issues can pass through institute
It states side 420 to be incident in the light guide panel 42, described image sensor 461 can receive anti-from the reflecting surface 423
The light for the total reflection penetrated.
Using the electronic device 100 fingerprint recognition when, finger contacts the fingerprint contact surface of the light guide panel 42
421, the inductive layer 425 of the light guide panel 42 sends a signal to the fingerprint controller 462, and the fingerprint controller 462 connects
It collects mail number and controls the active light source 44 and open to emit infrared light across the side 420 and be incident to the light guiding surface
The inside of plate 42, and in the internal reflection of the light guide panel 42, it is radiated at the fingerprint contact surface for being pressed with fingerprint to be identified
It on 421, and is totally reflected with the fingerprint to be identified, the total reflection enters after the internal reflection of the light guide panel 42 again
It is incident upon on the reflecting surface 423 or the light of the total reflection is directly transmitted on the reflecting surface 423, the reflecting surface 423
The light of the total reflection is incident to described image sensor 461, described image sensor 461 receives the light of the total reflection
Line simultaneously obtains fingerprint image, and the fingerprint controller 462 identifies the fingerprint image that described image sensor 461 is sent.
Since the active light source 44 and the fingerprint mould group 46 are respectively arranged at the accepting hole of two side walls 520
521, in 522, and the display screen 20 is between the light guide panel 42 and the fingerprint mould group 46, therefore, the fingerprint
Recognizer component 40 is not take up the area of the display screen 20, to improve the screen accounting of the electronic device 100, and the active
Formula light source 44 and the fingerprint mould group 46 are also not take up the inner space of the shell 50, are conducive to the inside of the shell 50
The layout of electronic component.
Referring to Fig. 7, Fig. 7 is the electronic device construction schematic diagram that the fifth embodiment of the present invention provides.Of the invention
The structure of electronic device of structure and fourth embodiment of the electronic device of five embodiments is similar, the difference is that: the 5th
In embodiment, accepting hole is offered on the medial surface of the side wall 520 for installing the fingerprint mould group 46 of electronic device 100a
522a, the fingerprint mould group 46 are contained in the accepting hole 522a.The side wall 520 faces the side of the light guide panel 42
On offer the light hole 523 for being connected to the accepting hole 522a, the corresponding reflecting surface 423 of the light hole 523., described
The total reflection that reflecting surface 423 reflects is incident in described image sensor 461 across the light hole 523.The light passing
The Kong Kuanwei 1.1mm ~ 1.4mm in hole 523, in the present embodiment, the Kong Kuanwei 1.4mm of each light hole 523.
Referring to Fig. 8, Fig. 8 is the electronic device construction schematic diagram that the sixth embodiment of the present invention provides.Of the invention
The structure of electronic device of structure and fourth embodiment of the electronic device of six embodiments is similar, the difference is that: the 6th
In embodiment, the fingerprint recognition component 40 is set to the back side of shell 50, that is, the light guide panel of the fingerprint recognition component 40
42 back shroud as electronic device 100b, the light guide panel 42 are set to the shell 50 facing away from the one of the display screen 20
Side, and the light guide panel 42 is located between two side walls 520.Wherein leaded light described in the medial surface face of one side wall 520
Offer an accepting hole 521 at the side 420 of panel 42, another side wall 520 faces to be opened up on the side of the light guide panel 42
There is another accepting hole 522, the active light source 44 and the fingerprint mould group 46 are respectively accommodated in the accepting hole 521,522
It is interior.The light that the active light source 44 issues can pass through the side 420 and be incident in the light guide panel 42, described image
The light for the total reflection that sensor 461 can be reflected received from the reflecting surface 423.The electronic device 100b further includes lid
Front panel 80 on the display screen 20, the front panel 80 is for protecting the display screen 20.
Using the electronic device 100b of the sixth embodiment fingerprint recognition when, finger contacts the electronic device 100b
The fingerprint contact surface 421 at back, the inductive layer 425 of the light guide panel 42 sends a signal to the fingerprint controller 462, described
Fingerprint controller 462 receives signal and controls the active light source 44 and opens to emit infrared light across the side 420
Into the inside of the light guide panel 42, and in the internal reflection of the light guide panel 42, it is radiated at and is pressed with fingerprint to be identified
It on the fingerprint contact surface 421, and is totally reflected with the fingerprint to be identified, the total reflection is again through the light guide panel 42
Internal reflection after be incident on the reflecting surface 423 or the light of the total reflection is directly transmitted to the reflecting surface 423
On, the light of the total reflection is reflexed to described image sensor 461 by the reflecting surface 423, and described image sensor 461 connects
It receives the light of the total reflection and obtains fingerprint image, the fingerprint controller 462 identifies what described image sensor 461 was sent
The fingerprint image.
Since the active light source 44 and the fingerprint mould group 46 are respectively accommodated in two 520 accepting holes of side wall
521, in 522, and the light guide panel 42 is as the back shroud of the electronic device 100b, that is, the light guide panel 42 is arranged
In the shell 50 facing away from the side of the display screen 20.Therefore, the fingerprint recognition component 40 is not take up the display screen 20
Area, to improve the screen accounting of the electronic device 100, and the active light source 44 and the fingerprint mould group 46 are not yet
The inner space for occupying the shell 50 is conducive to the layout of the electronic component of the inside of the shell 50.
It is the embodiment of the embodiment of the present invention above, it is noted that those skilled in the art are come
It says, without departing from the principles of the embodiments of the present invention, several improvements and modifications can also be made, these improvements and modifications
It is considered as protection scope of the present invention.
Claims (14)
1. a kind of fingerprint recognition component, which is characterized in that it includes light guide panel, at least an active light source and an at least fingerprint
Mould group, at least one active light source are set to the wherein one side of light guide panel described in face, at least one fingerprint mould
Group is set to the other side of the correspondence active light source of the light guide panel, is provided in the light guide panel for fingerprint
The fingerprint contact surface of pressing, at least one fingerprint mould group are located at the light guide panel facing away from the side of the fingerprint contact surface,
The fingerprint mould group of face at least one is provided with inclined reflecting surface in the light guide panel, and the reflecting surface is the light guiding surface
The chamfering of the intersection of the side of the fingerprint contact surface of plate and the neighbouring at least one fingerprint mould group of the light guide panel, at least one
The light that the active light source issues, in the internal reflection of the light guide panel, is radiated at and is pressed with wait know behind the side
It on the fingerprint contact surface of other fingerprint, and is totally reflected with the fingerprint to be identified, the light of the total reflection light guide panel
Line is incident on at least one fingerprint mould group after the reflective surface, and at least one fingerprint mould group is according to the total reflection
Light obtain and identify fingerprint image.
2. fingerprint recognition component according to claim 1, which is characterized in that be coated with reflecting layer on the reflecting surface.
3. fingerprint recognition component according to claim 2, which is characterized in that the reflecting layer be aluminium powder layer, silver powder layer or
Infrared reflecting paint layer.
4. fingerprint recognition component according to claim 1, which is characterized in that at least one active light source and at least one
The quantity of the fingerprint mould group is several, several active light sources be set to light guide panel described in face it is described its
Middle one side, the other side for the correspondence active light source that several fingerprint mould groups are set to the light guide panel.
5. fingerprint recognition component according to claim 1, which is characterized in that at least one active light source is near-infrared
Linear light source.
6. fingerprint recognition component according to claim 5, which is characterized in that the light guide panel is facing away from the fingerprint mould group
Surface on be provided with decorative layer, it is seen that light can penetrate the decorative layer, transmitance of the infrared light on the decorative layer
Greater than 80%.
7. fingerprint recognition component according to claim 6, which is characterized in that the decorative layer is to be led by silk-screen described
The ink layer of energy light transmission on optic panel, undope in the ink layer diffusion particle.
8. fingerprint recognition component according to claim 1, which is characterized in that at least one fingerprint mould group includes that image passes
Sensor and fingerprint controller, described image sensor are used to receive the light of the total reflection and obtain fingerprint image, the finger
The line controller fingerprint image that described image sensor is sent for identification.
9. fingerprint recognition component according to claim 8, which is characterized in that the light guide panel includes protective layer and induction
Layer, the inductive layer are set to the light guide panel facing away from the side of the fingerprint contact surface, the fingerprint tough institute to be identified
When stating the fingerprint contact surface of light guide panel, the inductive layer sends a signal to the fingerprint controller, the fingerprint controller control
The active light source is made to emit beam.
10. a kind of display device, which is characterized in that it includes display screen and finger according to claim 1 to 9
Line recognizer component.
11. a kind of electronic device, which is characterized in that it includes shell, the intracorporal mainboard of the shell being set to, and according to power
Benefit require 10 described in display device, the display device is set on the shell, and the display device is electrically connected at institute
State mainboard.
12. electronic device according to claim 11, which is characterized in that the shell includes opposite two sidewalls and connection
Support plate between two side walls, the display screen are set in the support plate, and the mainboard is set to the branch
Facing away from the side of the display screen, the active light source and fingerprint Mo Zu are set on two side walls fagging respectively.
13. electronic device according to claim 12, which is characterized in that wherein described in the medial surface face of a side wall
The lateral position of light guide panel offers accepting hole, and another side wall surface is towards offering another receiving on the side of the light guide panel
Hole, the active light source and the fingerprint Mo Zu are contained in respectively in two accepting holes.
14. a kind of electronic device, which is characterized in that it includes shell, the display screen for being set to the shell, and what is be set to is described
The intracorporal mainboard of shell and fingerprint recognition component according to claim 1 to 9, the fingerprint recognition component
It is set to the back side of shell, the light guide panel is set to the shell facing away from the side of the display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810364492.0A CN108683756B (en) | 2018-04-20 | 2018-04-20 | Fingerprint recognition component, display device and electronic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810364492.0A CN108683756B (en) | 2018-04-20 | 2018-04-20 | Fingerprint recognition component, display device and electronic device |
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| Publication Number | Publication Date |
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| CN108683756A CN108683756A (en) | 2018-10-19 |
| CN108683756B true CN108683756B (en) | 2019-07-23 |
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| CN201810364492.0A Active CN108683756B (en) | 2018-04-20 | 2018-04-20 | Fingerprint recognition component, display device and electronic device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020113415A1 (en) * | 2018-12-04 | 2020-06-11 | 深圳市汇顶科技股份有限公司 | Backlight module, liquid crystal module, fingerprint recognition device and module, and mobile terminal |
| CN110598662B (en) * | 2019-09-18 | 2022-11-11 | Oppo广东移动通信有限公司 | Electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205068439U (en) * | 2015-10-14 | 2016-03-02 | 京东方科技集团股份有限公司 | Optical fingerprint detection device and display device |
| CN105844233B (en) * | 2016-03-21 | 2022-07-05 | 京东方科技集团股份有限公司 | Fingerprint identification module, fingerprint identification device and display device |
| CN107038434B (en) * | 2017-05-12 | 2020-04-21 | Oppo广东移动通信有限公司 | Display device and mobile terminal |
| CN107506757A (en) * | 2017-09-30 | 2017-12-22 | 努比亚技术有限公司 | A kind of lateral fingerprint module and the mobile terminal with lateral fingerprint module |
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