CN108540605B - Electronic device - Google Patents
Electronic device Download PDFInfo
- Publication number
- CN108540605B CN108540605B CN201810364351.9A CN201810364351A CN108540605B CN 108540605 B CN108540605 B CN 108540605B CN 201810364351 A CN201810364351 A CN 201810364351A CN 108540605 B CN108540605 B CN 108540605B
- Authority
- CN
- China
- Prior art keywords
- fingerprint
- guide panel
- light guide
- light
- display screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
-
- 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
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
-
- 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
- H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Image Input (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a fingerprint identification assembly, which is arranged on a display screen, and comprises a light guide panel covered on the display screen, at least one active light source and at least one fingerprint module, wherein the at least one active light source is arranged in the display screen or on one side of the display screen far away from the light guide panel, the at least one fingerprint module is arranged at one side edge close to the light guide panel, the side surface of the light guide panel back to the display screen is provided with a fingerprint contact surface used for pressing fingerprints, light rays emitted by the at least one active light source are reflected by the light guide panel, irradiate on the fingerprint contact surface pressed with fingerprints to be identified and are totally reflected with the fingerprints to be identified, the totally reflected light rays enter the at least one fingerprint module, and the at least one fingerprint module acquires and identifies fingerprint images according to the totally reflected light rays. The invention also provides a display device provided with the fingerprint identification component and an electronic device provided with the display device.
Description
Technical Field
The present invention relates to the field of electronic devices, and in particular, to a fingerprint identification assembly, a display device having the fingerprint identification assembly, and an electronic device having the display device.
Background
With the rapid development of biometric identification technology, fingerprint identification technology has been widely applied to electronic devices such as smart phones and tablet computers. The existing fingerprint identification component can be mainly divided into a capacitance type fingerprint identification component, an optical type fingerprint identification component, a thermal type fingerprint identification component, an ultrasonic fingerprint identification component and the like, and the optical type fingerprint identification component becomes the most widely applied fingerprint identification component due to factors such as low manufacturing cost, high yield and the like.
The fingerprint identification module of the fingerprint identification component on the existing smart phone is usually arranged on the front face of the smart phone, so that the fingerprint identification component occupies the area of the display screen, and the screen occupation ratio of the smart phone is not improved.
Disclosure of Invention
The invention aims to provide a fingerprint identification component capable of improving the screen occupation ratio of an electronic device, a display device provided with the fingerprint identification component and the electronic device provided with the display device.
In order to solve the above technical problems, the present invention provides a fingerprint identification assembly disposed on a display screen, the fingerprint identification assembly includes a light guide panel covering the display screen, at least one active light source disposed inside the display screen or disposed on a side of the display screen away from the light guide panel, and at least one fingerprint module disposed adjacent to a side of the light guide panel, a side of the light guide panel facing away from the display screen is a fingerprint contact surface for pressing a fingerprint, light emitted from the at least one active light source is reflected by the inside of the light guide panel, irradiates the fingerprint contact surface pressed with a fingerprint to be identified, and is totally reflected with the fingerprint to be identified, and the totally reflected light is incident to the at least one fingerprint module, and at least one fingerprint module acquires and identifies a fingerprint image according to the totally reflected light.
The invention also provides a display device, which comprises a display screen and a fingerprint identification assembly, wherein the fingerprint identification assembly comprises a light guide panel covered on the display screen, at least one active light source and at least one fingerprint module, the at least one active light source is arranged in the display screen or arranged on one side of the display screen far away from the light guide panel, the at least one fingerprint module is arranged at one side adjacent to the light guide panel, a fingerprint contact surface used for pressing fingerprints is arranged on the side, back to the display screen, of the light guide panel, light rays emitted by the at least one active light source are reflected by the interior of the light guide panel and irradiate on the fingerprint contact surface pressed with the fingerprints to be identified, and the fingerprint identification module is totally reflected with the fingerprint to be identified, the totally reflected light enters at least one fingerprint module, and the at least one fingerprint module acquires and identifies a fingerprint image according to the totally reflected light.
The invention also provides an electronic device, which comprises a shell, a main board arranged in the shell and a display device, wherein the display device is arranged on the shell, the display device is electrically connected with the main board, the fingerprint identification assembly comprises a light guide panel covered on the display screen, at least one active light source and at least one fingerprint module, the at least one active light source is arranged in the display screen or arranged at one side of the display screen far away from the light guide panel, the at least one fingerprint module is arranged at one side close to the light guide panel, a fingerprint contact surface used for fingerprint pressing is arranged on the side surface of the light guide panel back to the display screen, light rays emitted by the at least one active light source are reflected by the inside of the light guide panel and irradiate on the fingerprint contact surface pressed with a fingerprint to be identified, and the fingerprint identification module is totally reflected with the fingerprint to be identified, the totally reflected light enters at least one fingerprint module, and the at least one fingerprint module acquires and identifies a fingerprint image according to the totally reflected light.
The display screen of the display device is covered with the light guide panel, at least one active light source is arranged in the display screen, at least one fingerprint module is arranged at one side edge adjacent to the light guide panel, light emitted by at least one active light source directly enters the light guide panel and is reflected in the light guide panel, the light irradiates on the fingerprint contact surface pressed with a fingerprint to be identified and is totally reflected with the fingerprint to be identified, the total reflection is incident to at least one fingerprint module through the interior of the light guide panel, and at least one fingerprint module acquires and identifies a fingerprint image according to the totally reflected light. Because the light guide panel is the apron of display screen, at least one active light source set up in the inside of display screen, at least one the fingerprint module is located one side of light guide panel, consequently, the fingerprint module does not occupy the area of display screen is favorable to improving the screen and accounts for the ratio.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display device according to a first embodiment of the present invention.
Fig. 2 is an enlarged view of a portion II in fig. 1.
Fig. 3 is a schematic front structural diagram of a display device according to a first embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a display device according to a second embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a display device according to a third embodiment of the present invention.
Fig. 6 is a schematic structural diagram of an electronic device according to a fourth embodiment of the invention.
Fig. 7 is a schematic structural diagram of an electronic device according to a fifth embodiment of the invention.
Fig. 8 is a schematic structural diagram of an electronic device according to a sixth embodiment of the invention.
Fig. 9 is a schematic structural diagram of an electronic device according to a seventh embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not imply or indicate that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "thickness" and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, and do not imply or indicate that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic structural diagram of a display device according to a first embodiment of the present invention; fig. 2 is an enlarged view of a portion II in fig. 1. The present invention provides a display device 10, which comprises a display screen 20 and a fingerprint identification assembly 40, wherein the fingerprint identification assembly 40 comprises a light guide panel 42, at least one active light source 44 and at least one fingerprint module 46. At least one active light source 44 is disposed inside the display screen 20 at a side adjacent to the light guide panel 42, and at least one fingerprint module 46 is disposed at one side adjacent to the light guide panel 42. Light guide panel 42 faces back the side of display screen 20 sets up to a fingerprint contact surface 421 that is used for the fingerprint to press, light guide panel 42 faces back the side of fingerprint contact surface 421 is medial surface 422, display screen 20 is located light guide panel 42 faces back one side of fingerprint contact surface 421, promptly, light guide panel 42's medial surface 422 lid is located on the display screen 20. The light emitted by at least one active light source 44 is incident into the light guide panel 42 and reflected inside the light guide panel 42, and is irradiated on the fingerprint contact surface 421 on which the fingerprint to be recognized is pressed, and is totally reflected with the fingerprint to be recognized, and the total reflection is incident into at least one fingerprint module 46 through the inside of the light guide panel 42, and the at least one fingerprint module 46 obtains and recognizes the fingerprint image according to the totally reflected light.
The display device 10 of the present invention may be installed on any electronic device, that is, the display device 10 may be installed on an intelligent device such as a smart phone, a tablet computer, an electronic reader, a notebook computer, a vehicle-mounted device, a network television, and a wearable device. In this embodiment, the display device 10 is used in a smart phone.
In this embodiment, the light guide panel 42 serves as a cover plate on the display screen 20 of the display device 10, the light guide panel 42 includes a protective layer 428 and a sensing layer 429, the sensing layer 429 is disposed on a side surface of the protective layer 428 facing away from the fingerprint contact surface 421, that is, the sensing layer 429 is disposed on the inner side surface 422; the fingerprint contact surface 421 is disposed on a side of the protection layer 428 facing away from the sensing layer 429.
The protective layer 428 is a transparent layer, and preferably, the protective layer 428 is a tempered glass layer. The thickness of the toughened glass layer is more than 0.8mm, and preferably, the thickness of the toughened glass layer is 0.9 mm.
The display screen 20 may be an OLED display screen or an LCD display screen, and in this embodiment, the display screen 20 is an OLED display screen.
At least one of the active light sources 44 is an infrared light source, and preferably, at least one of the active light sources 44 is a near infrared light source.
The display screen 20 of the display device 10 of the present invention is covered with the light guide panel 42, at least one active light source 44 is disposed inside the display screen 20 at a side adjacent to the light guide panel 42, at least one fingerprint module 46 is disposed at a side adjacent to the light guide panel 42, light emitted from the at least one active light source 44 directly enters the light guide panel 42 and is reflected inside the light guide panel 42, the light irradiates the fingerprint contact surface 421 with a fingerprint to be identified and is totally reflected with the fingerprint to be identified, the total reflection is incident to the at least one fingerprint module 46 through the inside of the light guide panel 42, and the at least one fingerprint module 46 obtains and identifies a fingerprint image according to the totally reflected light. Because the light guide panel 42 is the apron of display screen 20, at least one active light source 44 set up in the inside of display screen 20, at least one fingerprint module 46 is located one side of light guide panel 42, consequently, fingerprint module 46 does not occupy the area of display screen 20 is favorable to improving the screen ratio.
The at least one active light source 44 and the at least one fingerprint module 46 are located on a side of the light guide panel 42 facing away from the fingerprint contact surface 421, that is, the display screen 20, the at least one active light source 44 and the at least one fingerprint module 46 are located on a same side of the light guide panel 42. In this embodiment, the display screen 20 is located between the light guide panel 42 and at least one fingerprint module 46.
In this embodiment, the number of the at least one fingerprint module 46 is two, the two fingerprint modules 46 are respectively disposed at two opposite side edges of the light guide panel 42, the at least one active light source 44 is located between the two fingerprint modules 46, light emitted by the at least one active light source 44 is reflected by the inside of the light guide panel 42, irradiates the fingerprint contact surface 421 on which a fingerprint to be recognized is pressed, and is totally reflected with the fingerprint to be recognized, the totally reflected light is respectively incident to the two fingerprint modules 46, and each fingerprint module 46 acquires and recognizes a fingerprint image according to the totally reflected light.
The two fingerprint modules 46 are located on one side of the light guide panel 42 back to the fingerprint contact surface 421, two inclined reflection surfaces 423 are arranged on the light guide panel 42 opposite to the two fingerprint modules 46, light emitted by at least one active light source 44 is reflected inside the light guide panel 42, irradiates on the fingerprint contact surface 421 pressed with a fingerprint to be identified, and is totally reflected with the fingerprint to be identified, and the totally reflected light is reflected by each reflection surface 423 and then enters the corresponding fingerprint module 46. The two reflecting surfaces 423 are located at the intersection of the fingerprint contact surface 421 of the light guide panel 42 and two opposite side surfaces of the light guide panel 42, that is, each reflecting surface 423 is a chamfer of the intersection of the fingerprint contact surface 421 and one of the side surfaces of the light guide panel 42. The included angle a between each reflecting surface 423 and the fingerprint contact surface 421 is greater than 0 degree and less than 90 degrees, and preferably, the included angle a ranges from 30 degrees to 60 degrees. In this embodiment, the included angle a is 45 degrees.
The surface of each of the reflecting surfaces 423 is smooth, that is, the surface roughness of each of the reflecting surfaces 423 is smaller. In this embodiment, the surface roughness Ra of each of the reflecting surfaces 423 is less than 10 um.
Each reflecting surface 423 is coated with a reflecting layer 426, the reflecting layer 426 enables the reflecting surface 423 to have high reflectivity, and the reflecting layer 426 can be an aluminum powder layer, a silver powder layer or an infrared reflecting pigment layer.
In this embodiment, each of the reflecting surfaces 423 is coated with an aluminum powder layer.
The surface of the reflective layer 426 facing the light guide panel 42 is smooth, that is, the surface roughness value of the reflective layer 426 facing the light guide panel 42 is small, in this embodiment, the surface roughness Ra of the reflective layer 426 facing the light guide panel 42 is less than 10 um.
A mask layer 427 is disposed on a surface of the light guide panel 42 facing away from the active light source 44, visible light can pass through the mask layer 427, and the transmittance of infrared light on the mask layer 427 is greater than 80%. The cover layer 427 is used to block, i.e., hide the internal structure of the display device 10 from the outside surface of the light guide panel 42.
In this embodiment, a mask layer 427 is coated on the fingerprint contact surface 421 of the light guide panel 42, and two sides of the mask layer 427 are connected to the two reflective layers 426. The shielding layer 427 is a light-colored transparent ink layer formed on the light guide panel 42 by silk-screen printing, and diffusion particles are not doped in the ink layer.
In other embodiments, the masking layer 427 may be applied only on a side of the protection layer 428 opposite to the sensing layer 429, corresponding to at least one of the active light sources 44 and two of the fingerprint modules 46.
In other embodiments, the covering layer 427 may be coated on the side of the light guide panel 42 opposite to the fingerprint contact surface 421, or the covering layer 427 may be disposed on both sides of the light guide panel 42 opposite to each other.
In other embodiments, the decoration layer 427 may be disposed on the light guide panel 42 by inkjet or the like.
Each fingerprint module 46 includes an image sensor 461 and a fingerprint controller 462, the light emitted from the active light source 44 enters the interior of the light guide panel 42, and repeatedly reflects between the fingerprint contact surface 421 and the inner side surface 422 in the light guide panel 42, when the light irradiates on the fingerprint contact surface 421 pressed with the fingerprint to be identified, the light can be totally reflected with the fingerprint to be identified, the total reflection is reflected by the light guide panel 42 and then incident on the two reflecting surfaces 423, or the total reflection is directly incident on the two reflecting surfaces 423, the two reflecting surfaces 423 respectively reflect the total reflected light to the corresponding image sensors 461, each image sensor 461 receives the total reflected light and obtains a fingerprint image, the fingerprint controller 462 identifies the fingerprint image transmitted by the image sensor 461.
During use, the display device 10 is installed on a housing of an electronic device, such as a housing of a smart phone, the two fingerprint modules 46 are respectively disposed on two opposite side walls of the housing, the display screen 20 is disposed in the housing, at least one active light source 44 is disposed inside the display screen 20, and the light guide panel 42 covers the display screen 20. A finger of a fingerprint to be identified contacts the fingerprint contact surface 421 of the light guide panel 42, the sensing layer 429 of the light guide panel 42 sends a signal to the fingerprint controller 462, the fingerprint controller 462 receives the signal and controls at least one active light source 44 to be turned on, light emitted by at least one active light source 44 enters the light guide panel 42, is reflected inside the light guide panel 42, irradiates the fingerprint contact surface 421 pressed with the fingerprint to be identified, and is totally reflected with the fingerprint to be identified, the total reflection is repeatedly reflected between the fingerprint contact surface 421 and the inner side 422 of the light guide panel 42 and then is incident on the two reflecting surfaces 423, or the total reflection is directly incident on the two reflecting surfaces 423, each reflecting surface 423 reflects the totally reflected light to the corresponding image sensor 461, each of the image sensors 461 receives the totally reflected light and obtains a fingerprint image, and each of the fingerprint controllers 462 identifies the fingerprint image sent by the corresponding image sensor 461.
Referring to fig. 3, fig. 3 is a schematic front structure diagram of a display device according to a first embodiment of the invention. In the first embodiment, the left and right sides of the light guide panel 42 are respectively provided with a plurality of fingerprint modules 46, the display screen 20 is provided with a plurality of active light sources 44, and the plurality of active light sources 44 and the plurality of fingerprint modules 46 are in one-to-one correspondence. The two reflecting surfaces 423 are respectively disposed at intersections of the left and right side surfaces of the light guide panel 42 and the fingerprint contact surface 421, that is, the two reflecting surfaces 423 are respectively chamfers at the intersections of the left and right side surfaces of the light guide panel 42 and the fingerprint contact surface 421. In this embodiment, the plurality of active light sources 44 are located in the middle between the plurality of fingerprint modules 46 on the left and right sides of the light guide panel 42.
In other embodiments, a number of the active light sources 44 may be adjacent to a number of the fingerprint modules 46 on the left side of the light guide panel 42, or adjacent to a number of the fingerprint modules 46 on the right side of the light guide panel 42.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a display device according to a second embodiment of the present invention. The structure of the display device of the second embodiment of the present invention is similar to that of the display device of the first embodiment, except that: in the second embodiment, the top and the bottom of the light guide panel 42 are respectively disposed with a plurality of fingerprint modules 46, and a plurality of active light sources 44 are disposed inside the display screen 20 and between the top and the bottom of the display screen 20. A plurality of the active light sources 44 correspond to a plurality of the fingerprint modules 46 one to one. The two reflective surfaces are respectively disposed at the intersections of the top surface and the bottom surface of the light guide panel 42 and the fingerprint contact surface 421, that is, the two reflective surfaces are respectively chamfers at the intersections of the top surface and the bottom surface of the light guide panel 42 and the fingerprint contact surface 421.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a display device according to a third embodiment of the present invention. The structure of the display device of the third embodiment of the present invention is similar to that of the display device of the first embodiment, except that: in the third embodiment, the active light source 44 of the fingerprint identification device 40 of the display apparatus 10a is disposed on the side of the display screen 20 facing away from the light guide panel 42, and the light transmission region 442 is disposed at the position of the display screen 20 corresponding to the active light source 44. The light emitted by the active light source 44 passes through the light-transmitting region 442, then enters the light-guiding panel 42, is reflected inside the light-guiding panel 42, irradiates the fingerprint contact surface 421 on which the fingerprint to be identified is pressed, and is totally reflected with the fingerprint to be identified, the totally reflected light is reflected to the two fingerprint modules 46 through the corresponding reflection surfaces 423, and each fingerprint module 46 acquires and identifies a fingerprint image according to the totally reflected light.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a display device according to a fourth embodiment of the present invention. The structure of the display device of the fourth embodiment of the present invention is similar to that of the display device of the first embodiment, except that: in the fourth embodiment, the active light source 44 of the fingerprint identification device 40 of the display apparatus 10b is disposed inside the display screen 20 on a side facing away from the light guide panel 42, and the display screen 20 is provided with a light transmission region 442 corresponding to the active light source 44. The light emitted from the active light source 44 enters the inside of the light guide panel 42 through the light-transmitting region 442 and is reflected inside the light guide panel 42.
Referring to fig. 7, fig. 7 is a schematic structural diagram of an electronic device according to a fifth embodiment of the invention. The electronic device 100 provided by the present invention includes a housing 50, a main board 60 disposed in the housing 50, and a display device 10, wherein the display device 10 is disposed on the housing 50, and the display device 10 is electrically connected to the main board 60. The housing 50 includes a middle frame 52, the middle frame 52 includes two opposite sidewalls 520, and a supporting plate 525 connected between the two sidewalls 520. The display screen 20 of the display device 10 is disposed on the supporting plate 525 and located between the two side walls 520, and the main board 60 is disposed on one side of the supporting plate 525 back to the display screen 20 and located between the two side walls 520. The two fingerprint modules 46 are respectively disposed on the two side walls 520, the active light source 44 is disposed in the display screen 20 and adjacent to one side of the light guide panel 42, the light guide panel 42 is covered on the display screen 20, and the light guide panel 42 is disposed between the two side walls 520. The display screen 20 is located between the light guide panel 42 and the two fingerprint modules 46.
The side surfaces of the two side walls 520 facing the light guide panel 42 are respectively provided with a receiving hole 521, and the two fingerprint modules 46 are respectively received in the two receiving holes 521. The light emitted from the active light source 44 can directly enter the light guide panel 42 and be reflected along the inside of the light guide panel 42, irradiate on the fingerprint contact surface 421 pressed with the fingerprint to be identified, and be totally reflected with the fingerprint to be identified, the totally reflected light respectively enters the two reflection surfaces 423, the totally reflected light is reflected to the two fingerprint modules 46 by the two reflection surfaces 423, and each image sensor 461 can receive the total reflection reflected by the reflection surfaces 423.
When the fingerprint of the electronic device 100 is used for fingerprint identification, a finger contacts the fingerprint contact surface 421 of the light guide panel 42, the sensing layer 429 of the light guide panel 42 sends a signal to the fingerprint controller 462, the fingerprint controller 462 receives the signal and controls the active light source 44 to be turned on to emit infrared light to the inside of the light guide panel 42, the infrared light is reflected inside the light guide panel 42, irradiated on the fingerprint contact surface 421 pressed with a fingerprint to be identified and totally reflected with the fingerprint to be identified, the total reflection is reflected inside the light guide panel 42 and then incident on the two reflection surfaces 423, or the totally reflected light is directly incident on the two reflection surfaces 423, each reflection surface 423 reflects the total light to be incident on the corresponding image sensor 461, each image sensor 461 receives the totally reflected light and acquires a fingerprint image, each of the fingerprint controllers 462 identifies the fingerprint image sent by the corresponding image sensor 461.
Since the two fingerprint modules 46 are respectively disposed in the two receiving holes 521 of the side wall 520, the active light source 44 is disposed inside the display screen, and the light guide panel 42 covers the display screen 20. Therefore, the fingerprint identification module 40 does not occupy the area of the display screen 20, so as to improve the screen occupation ratio of the electronic device 100, and the fingerprint module 46 does not occupy the internal space of the housing 50, which is favorable for the layout of the electronic components inside the housing 50.
Referring to fig. 8, fig. 8 is a schematic structural diagram of an electronic device according to a sixth embodiment of the invention. The structure of the electronic device of the sixth embodiment of the present invention is similar to that of the electronic device of the fifth embodiment, except that: in the sixth embodiment, the electronic device 100a has two side walls 520 with receiving holes 521a formed on inner surfaces thereof, and the two fingerprint modules 46 are received in the two receiving holes 521 a. The side surface of each sidewall 520 facing the light guide panel 42 is provided with a light through hole 523 communicated with the corresponding receiving hole 521a, and the two light through holes 523 respectively correspond to the two reflecting surfaces 423. The totally reflected light rays reflected by the two reflecting surfaces 423 pass through the corresponding light passing holes 523 and are incident on the corresponding image sensors 461. The hole width of each light through hole 523 is 1.1 mm-1.4 mm, and in this embodiment, the hole width of each light through hole 523 is 1.4 mm.
Referring to fig. 9, fig. 9 is a schematic structural diagram of an electronic device according to a seventh embodiment of the invention. The structure of the electronic device of the seventh embodiment of the present invention is similar to that of the electronic device of the fifth embodiment, except that: in the seventh embodiment, the active light source 44 is disposed on a side of the display screen 20 opposite to the light guide panel 42, and a light-transmitting region 442 is formed at a position of the display screen 20 corresponding to the active light source 44. The light emitted from the active light source 44 enters the inside of the light guide panel 42 through the light-transmitting region 442 and is reflected inside the light guide panel 42.
The foregoing is illustrative of embodiments of the present invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the embodiments of the present invention and are intended to be within the scope of the present invention.
Claims (13)
1. An electronic device comprises a shell, a main board arranged in the shell, and a display device arranged on the shell, wherein the display device is electrically connected with the main board, the display device comprises a display screen and a fingerprint identification assembly arranged on the display screen, and the electronic device is characterized in that the fingerprint identification assembly comprises a light guide panel covered on the display screen, at least one active light source and at least two fingerprint modules, at least one active light source is arranged in the display screen or arranged on one side of the display screen far away from the light guide panel, the shell comprises a middle frame, the middle frame comprises two opposite side walls, the two fingerprint modules are respectively arranged on the two side walls, the display screen is positioned between the light guide panel and the two fingerprint modules, the side surface of the light guide panel back towards the display screen is provided with a fingerprint contact surface for pressing fingerprints, the fingerprint identification device comprises a light guide panel, a fingerprint module and at least one active light source, wherein an inclined reflection surface is arranged on the light guide panel and is opposite to each fingerprint module, the reflection surface is positioned at the intersection of a fingerprint contact surface of the light guide panel and the opposite side surface of the light guide panel, a reflection layer is coated on the reflection surface, light emitted by at least one active light source is reflected by the interior of the light guide panel, irradiates the fingerprint contact surface pressed with a fingerprint to be identified and is totally reflected with the fingerprint to be identified, the totally reflected light is reflected by the reflection surface and then enters each fingerprint module, and the fingerprint module acquires and identifies a fingerprint image according to the totally reflected light.
2. The electronic device according to claim 1, wherein each of the fingerprint modules is located on a side of the light guide panel opposite to the fingerprint contact surface, and the totally reflected light is reflected by the reflection surface and then enters the fingerprint module.
3. The electronic device according to claim 1, wherein the at least one active light source is disposed inside the display screen at a side adjacent to the light guide panel, and light emitted from the at least one active light source can directly enter the light guide panel.
4. The electronic device according to claim 1, wherein the at least one active light source is disposed inside the display screen on a side away from the light guide panel, the display screen is provided with a light transmissive region corresponding to the at least one active light source, and light emitted from the at least one active light source passes through the light transmissive region and enters the inside of the light guide panel.
5. The electronic device according to claim 1, wherein the at least one active light source is disposed on a side of the display screen facing away from the light guide panel, the display screen has a transparent region corresponding to the at least one active light source, and light emitted from the at least one active light source passes through the transparent region and is incident into the light guide panel.
6. The electronic device according to any one of claims 1-5, wherein two fingerprint modules are respectively disposed at two opposite sides of the light guide panel, at least one of the active light sources is located between the two fingerprint modules, light emitted from at least one of the active light sources is reflected by the light guide panel, irradiates the fingerprint contact surface pressed with the fingerprint to be recognized, and is totally reflected with the fingerprint to be recognized, the totally reflected light is respectively incident on the two fingerprint modules, and each fingerprint module acquires and recognizes a fingerprint image according to the totally reflected light.
7. The electronic device according to claim 6, wherein two of the fingerprint modules are located on a side of the light guide panel opposite to the fingerprint contact surface, two inclined reflection surfaces are provided on the light guide panel opposite to the two fingerprint modules, and the totally reflected light is reflected by each of the reflection surfaces and then enters the corresponding fingerprint module.
8. The electronic device of claim 1, wherein the reflective layer is an aluminum powder layer, a silver powder layer, or an infrared reflective pigment layer.
9. The electronic device according to claim 6, wherein at least one of the active light sources is located in a middle portion between two of the fingerprint modules or adjacent to one of the fingerprint modules.
10. The electronic device of claim 1, wherein at least one active light source is a near infrared light source.
11. The electronic device according to claim 10, wherein a surface of the light guide panel facing away from at least one of the active light sources is provided with a mask layer, visible light can pass through the mask layer, and infrared light has a transmittance of more than 80% in the mask layer.
12. The electronic device according to claim 1, wherein each of the fingerprint modules comprises an image sensor and a fingerprint controller, the image sensor is configured to receive the totally reflected light and obtain a fingerprint image, and the fingerprint controller is configured to identify the fingerprint image sent by the image sensor.
13. The electronic device according to claim 12, wherein the light guide panel comprises a protection layer and a sensing layer, the sensing layer is disposed on a side of the light guide panel opposite to the fingerprint contact surface, when a fingerprint to be recognized contacts the fingerprint contact surface of the light guide panel, the sensing layer sends a signal to the fingerprint controller, and the fingerprint controller controls at least one of the active light sources to emit light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810364351.9A CN108540605B (en) | 2018-04-20 | 2018-04-20 | Electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810364351.9A CN108540605B (en) | 2018-04-20 | 2018-04-20 | Electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108540605A CN108540605A (en) | 2018-09-14 |
| CN108540605B true CN108540605B (en) | 2021-04-16 |
Family
ID=63479186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810364351.9A Active CN108540605B (en) | 2018-04-20 | 2018-04-20 | Electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108540605B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109409310B (en) * | 2018-11-05 | 2021-08-17 | Oppo（重庆）智能科技有限公司 | Display screen assembly, electronic equipment and fingerprint identification method |
| CN109740496B (en) * | 2018-12-28 | 2021-02-05 | 维沃移动通信有限公司 | Mobile terminal and identification method |
| CN113139510A (en) * | 2019-09-18 | 2021-07-20 | Oppo广东移动通信有限公司 | Display screen assembly, electronic equipment and fingerprint processing method |
| CN110598657B (en) * | 2019-09-18 | 2022-04-22 | Oppo广东移动通信有限公司 | Optical fingerprint identification electronic equipment under screen |
| CN110598662B (en) * | 2019-09-18 | 2022-11-11 | Oppo广东移动通信有限公司 | Electronic device |
| WO2021081778A1 (en) * | 2019-10-29 | 2021-05-06 | 南昌欧菲生物识别技术有限公司 | Ultrasonic fingerprint module, manufacturing method therefor, and electronic device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102138118A (en) * | 2008-08-29 | 2011-07-27 | 夏普株式会社 | Coordinate sensor, electronic device, display device, and light-receiving unit |
| CN105844233A (en) * | 2016-03-21 | 2016-08-10 | 京东方科技集团股份有限公司 | Fingerprint identification module, fingerprint identification device and display device |
| CN106104565A (en) * | 2014-03-21 | 2016-11-09 | 索尼公司 | There is the electronic equipment of the fingerprint reader based on display |
| CN107247922A (en) * | 2017-05-12 | 2017-10-13 | 广东欧珀移动通信有限公司 | Display device and mobile terminal |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201274054Y (en) * | 2008-10-08 | 2009-07-15 | 贾怀昌 | Fingerprint recognition optical system |
| CN101964058B (en) * | 2010-09-20 | 2015-03-04 | 深圳百佳安生物识别技术有限公司 | Thin optical fingerprint scanner |
| CN103530615A (en) * | 2013-10-21 | 2014-01-22 | 珠海耀阳电子科技有限公司 | Optical fingerprint acquisition device and implementation method thereof |
| US10157305B2 (en) * | 2015-10-19 | 2018-12-18 | Qualcomm Incorporated | Cover-glass optical isolation for optical touch and fingerprint sensing |
-
2018
- 2018-04-20 CN CN201810364351.9A patent/CN108540605B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102138118A (en) * | 2008-08-29 | 2011-07-27 | 夏普株式会社 | Coordinate sensor, electronic device, display device, and light-receiving unit |
| CN106104565A (en) * | 2014-03-21 | 2016-11-09 | 索尼公司 | There is the electronic equipment of the fingerprint reader based on display |
| CN105844233A (en) * | 2016-03-21 | 2016-08-10 | 京东方科技集团股份有限公司 | Fingerprint identification module, fingerprint identification device and display device |
| CN107247922A (en) * | 2017-05-12 | 2017-10-13 | 广东欧珀移动通信有限公司 | Display device and mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108540605A (en) | 2018-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108540605B (en) | Electronic device | |
| CN108596080B (en) | Fingerprint identification assembly, display device and electronic device | |
| CN109061946B (en) | Display screen assembly and electronic equipment | |
| US20210142028A1 (en) | Optical fingerprint identification apparatus and electronic device | |
| CN108615005B (en) | Fingerprint identification assembly, display device and electronic device | |
| CN108598136B (en) | Display panel and display device | |
| CN108615004B (en) | Fingerprint identification assembly, display device and electronic device | |
| CN212135453U (en) | Fingerprint detection device and electronic equipment | |
| EP3159825A1 (en) | Image acquisition apparatus, terminal device, liquid crystal terminal device and image acquisition method | |
| US20210357614A1 (en) | Terminal device | |
| CN211375619U (en) | Fingerprint identification device and electronic equipment | |
| KR20180059720A (en) | Display device | |
| EP3340108B1 (en) | Sensor device and mobile terminal | |
| US20110267314A1 (en) | Optical touch-sensing display module | |
| CN109061925B (en) | Display screen assembly and electronic equipment | |
| EP3489793B1 (en) | Electronic device with built-in proximity sensor | |
| WO2020082375A1 (en) | Compound lens structure, fingerprint recognition apparatus, and electronic device | |
| CN214225933U (en) | Fingerprint identification device and electronic equipment | |
| CN211319243U (en) | Fingerprint recognition device under screen and terminal equipment | |
| CN111708224B (en) | Backlight module and display device | |
| CN110598657B (en) | Optical fingerprint identification electronic equipment under screen | |
| CN110619306A (en) | Display screen assembly, electronic equipment and fingerprint processing method | |
| CN110738193A (en) | Electronic device | |
| CN110730967A (en) | Fingerprint identification device and electronic equipment | |
| CN112578948B (en) | Display device and fingerprint identification method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |