CN109684983B - Fingerprint monitoring device and electronic equipment - Google Patents
Fingerprint monitoring device and electronic equipment Download PDFInfo
- Publication number
- CN109684983B CN109684983B CN201811558092.XA CN201811558092A CN109684983B CN 109684983 B CN109684983 B CN 109684983B CN 201811558092 A CN201811558092 A CN 201811558092A CN 109684983 B CN109684983 B CN 109684983B
- Authority
- CN
- China
- Prior art keywords
- fingerprint
- detection device
- target object
- identification module
- light
- 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
-
- 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
- G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
Abstract
The application discloses fingerprint monitoring device and electronic equipment, fingerprint monitoring device includes: the fingerprint identification module, the first laminating layer, the light-emitting substrate, the second laminating layer and the first cover plate are sequentially stacked from bottom to top; the fingerprint identification module comprises a first detection device, wherein the first detection device is used for receiving infrared light emitted by a target object and judging whether the temperature of the target object is within a preset temperature range according to the infrared light emitted by the target object when the target object approaches to the first cover plate. Therefore, whether the target to be detected is a living body can be detected, and the safety of the electronic equipment is improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a fingerprint monitoring device and electronic equipment.
Background
In recent years, with the development of science and technology and the improvement of product requirements of people, a full screen with a screen ratio close to 100% is expected as a smart phone. In order to achieve the ultra-high screen ratio, the fingerprint recognition sensor is generally placed under the screen or at the back of the mobile phone.
In the prior art, an optical fingerprint sensor or an ultrasonic fingerprint sensor can be placed below an OLED screen to realize a comprehensive screen technology. However, the optical fingerprint sensor cannot identify whether the target to be measured is a living body, such as a finger mould or a broken finger, and thus the poor safety limits the wide application of the optical fingerprint sensor.
Therefore, the prior art has defects and needs to be improved urgently.
Disclosure of Invention
The embodiment of the application provides a fingerprint monitoring device and electronic equipment, can detect whether the target that awaits measuring is the living body, and then improve electronic equipment's security.
The embodiment of the application provides a fingerprint detection device, includes:
the fingerprint identification module, the first laminating layer, the light-emitting substrate, the second laminating layer and the first cover plate are sequentially stacked from bottom to top; wherein the content of the first and second substances,
the fingerprint identification module comprises a first detection device, wherein the first detection device is used for receiving infrared light emitted by a target object when the target object is close to the first cover plate, and judging whether the temperature of the target object is within a preset temperature range according to the infrared light emitted by the target object.
In the fingerprint detection device of the present application, a second cover plate is disposed on the first cover plate, and the second cover plate is used for collecting the infrared light emitted by the target object.
In this application fingerprint detection device, the fingerprint identification module includes:
and the second detection device is used for receiving reflected light with fingerprint information, and the reflected light is formed after the emitted light emitted by the light-emitting substrate is reflected by the target object.
In the fingerprint detection device of the present application, the first detection means is provided on at least two sides of the second detection means.
In the fingerprint detection device of the present application, the first detection device includes a plurality of first detection units, the second detection device includes a plurality of second detection units, and the plurality of first detection units and the plurality of second detection units are disposed at intervals.
In the fingerprint detection device described in the present application, the light-emitting substrate includes:
a backplane, and R, G, B pixels regularly arranged on the backplane, the emitted light being light emitted by the R, G, B pixels.
In the fingerprint detection device of this application, there is the clearance between R, G, B pixel, the clearance is used for making the emitted light penetrate to the fingerprint identification module from the clearance.
In this application fingerprint detection device, the at least both sides of first laminating layer are provided with the heat-conducting layer, the heat-conducting layer be used for with the heat that the fingerprint identification module produced is derived.
In this application fingerprint detection device, the vertical thickness of heat-conducting layer is less than first laminating layer with the vertical thickness sum of fingerprint identification module.
An embodiment of the present application further provides an electronic device, including: casing and fingerprint detection device, fingerprint detection device sets up on the casing, fingerprint detection device is as above fingerprint detection device.
The fingerprint monitoring device that this application embodiment provided includes: the fingerprint identification module, the first laminating layer, the light-emitting substrate, the second laminating layer and the first cover plate are sequentially stacked from bottom to top; the fingerprint identification module comprises a first detection device, wherein the first detection device is used for receiving infrared light emitted by a target object when the target object is close to the first cover plate, and judging whether the temperature of the target object is within a preset temperature range according to the infrared light emitted by the target object. Therefore, whether the target to be detected is a living body can be detected, and the safety of the electronic equipment is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, 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 an electronic device according to an embodiment of the present application.
Fig. 2 is a schematic view of a first structure of a fingerprint detection device according to an embodiment of the present application.
Fig. 3 is a schematic view of a second structure of a fingerprint detection device according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a third fingerprint detection device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the prior art, Light emitted from a pixel of an Organic Light Emitting Diode (OLED) is irradiated onto a finger through a cover plate. Due to the difference in optical refractive index between skin and air, the reflectivity is small at the interface between skin and cover plate and large at the air and cover plate. The reflected light irradiates the photoelectric sensor through the gaps among the pixel points. Generating a fingerprint image by using the reflectivity difference; namely, the reflection signal at the skin contact is small, and the reflection signal at the air contact is large. The photoelectric detector converts the received optical signal into an electric signal, and then fingerprint image information is captured and stored. However, the optical fingerprint sensor cannot identify whether the target to be measured is a living body, such as a finger module or a broken finger, and the poor safety of the optical fingerprint sensor limits the wide application of the optical fingerprint sensor.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The touch device 100 may include a fingerprint detection device 100, a control circuit 200, and a housing 300. It should be noted that the electronic device 1000 shown in fig. 1 is not limited to the above, and may further include other devices, such as a camera, an antenna structure, a thread unlocking module, and the like.
The fingerprint detection device 100 is disposed on the housing 200.
In some embodiments, the fingerprint detection device 100 may be fixed to the housing 200, and the fingerprint detection device 100 and the housing 300 form a closed space to accommodate the control circuit 200 and the like.
In some embodiments, the housing 300 may be made of a flexible material, such as a plastic housing or a silicone housing.
The control circuit 200 is installed in the housing 300, the control circuit 200 may be a motherboard of the electronic device 1000, and one, two or more functional components of a battery, an antenna structure, a microphone, a speaker, an earphone interface, a universal serial bus interface, a camera, a distance sensor, an ambient light sensor, a receiver, a processor, and the like may be integrated on the control circuit 200.
The fingerprint detection device 100 is installed in the housing 300, and meanwhile, the fingerprint detection device 100 is electrically connected to the control circuit 200 to form a display surface of the electronic device 1000. The fingerprint detection device 100 may include a display area and a non-display area. The display area may be used to display a screen of the electronic device 1000 or provide a user with touch control. The non-display area may be used to set various functional components.
Referring to fig. 2, fig. 2 is a schematic view illustrating a first structure of a fingerprint detection device according to an embodiment of the present disclosure. The fingerprint detection device 100 includes: the fingerprint identification module 10, the first adhesive layer 20, the light-emitting substrate 30, the second adhesive layer 40 and the first cover plate 50 are sequentially stacked from bottom to top; wherein the content of the first and second substances,
the fingerprint identification module 10 includes a first detection device 101, where the first detection device 101 is configured to receive infrared light emitted by a target object when the target object approaches the first cover plate 50, and determine whether a temperature of the target object is within a preset temperature range according to the infrared light emitted by the target object.
It will be appreciated that any object above absolute zero will emit infrared light at a wavelength of between about 0.75 and 1000 μm. The infrared radiation of human body is mainly between 3-50 μm, and the peak wavelength is 9.3 μm. So that the temperature of the human body can be measured by measuring the intensity of the infrared rays emitted from the human body. The traditional infrared thermometer consists of an optical system, a photoelectric detector, a signal amplifier, signal processing, display output and the like. The optical system focuses the infrared radiation energy of the target in the field of view onto the photoelectric detector and converts the infrared radiation energy into corresponding earth electric signals, and the signals are corrected by the signal processing circuit according to the algorithm in the instrument and the target emissivity and then converted into the temperature value of the target to be measured. Therefore, whether the target to be detected is a finger, a finger mould or a broken finger can be distinguished by measuring the temperature of the target object to be detected.
Therefore, whether the target object is a human finger or not is detected by arranging the first detection device 101 capable of receiving infrared light on the fingerprint identification module 10.
The fingerprint detection device 100 provided in the embodiment of the present application includes: the fingerprint identification module 10, the first adhesive layer 20, the light-emitting substrate 30, the second adhesive layer 40 and the first cover plate 50 are sequentially stacked from bottom to top; the fingerprint identification module 10 includes a first detection device 101, where the first detection device 101 is configured to receive infrared light emitted by a target object when the target object approaches the first cover 50, and determine whether a temperature of the target object is within a preset temperature range according to the infrared light emitted by the target object. Therefore, whether the target to be detected is a living body can be detected, and the safety of the electronic equipment is improved.
As shown in fig. 2, in some embodiments, a second cover 60 is disposed on the first cover 50, and the second cover 60 is used for collecting the infrared light emitted from the target object.
The second cover plate 60 is transparent to visible light and can well collect infrared light.
In some embodiments, the fingerprint identification module 10 includes:
and the second detection device 102 is configured to receive reflected light with fingerprint information, where the reflected light is formed after the emitted light emitted by the light-emitting substrate 30 is reflected by the target object.
It can be understood that the second detecting device 102 is a reflecting light on the fingerprint identification module 10 for receiving the reflected light formed by the reflection of the emitting light emitted from the light-emitting substrate 30 by the target object. Wherein, first detecting device 101 can be integrated on the fingerprint identification module 10, form a compound photoelectric identification module, compound photoelectric identification module will be able to turn into the infrared optical signal of target object transmission into the signal of telecommunication when carrying out optical imaging to the fingerprint, finally turns into the temperature value of target object. For false targets such as finger mould and broken finger, the temperature is obviously lower than that of the finger, so that the false targets can be distinguished by setting the temperature range of the finger.
In some embodiments, the preset temperature range is a variation range of a human body temperature. When the first detection device 101 receives infrared light emitted by a target object, converting an infrared light signal into an electric signal, and if the measured temperature value of the target object is within the preset temperature range, determining that the target object is a human body; and if the measured temperature value of the target object is not in the preset temperature range, determining that the target object is not a human body.
In some embodiments, as shown in fig. 2, the first detecting device 101 is disposed on at least two sides of the second detecting device 102.
Specifically, the first detecting devices 101 may be disposed on two sides or four sides of the second detecting device 102, the second detecting device 102 is configured to receive the reflected light with fingerprint information of the target object, and the first detecting devices 101 disposed at two ends of the second detecting device 102 are configured to detect the infrared light emitted by the target object. The first detecting device 101 is arranged on at least two sides of the second detecting device 102, so that the first detecting device 101 and the second detecting device 102 do not affect the resolution of the first detecting device 101 and the second detecting device 102, and the accurate detection of the temperature value of the target object by the first detecting device 101 can be realized while the detection accuracy of the second detecting device 102 is not reduced.
In some embodiments, the light emitting substrate 30 includes:
a backplane 301, and R, G, B pixels 302 regularly arranged on the backplane 301, the emitted light being light emitted by the R, G, B pixels 302.
In some embodiments, there are gaps 303 between the R, G, B pixels 302, and the gaps 303 are used for the emitted light to enter the fingerprint identification module 10 from the gaps 303.
Specifically, the light-emitting substrate 30 further includes: an anode, a hole transport layer, a light emitting layer, an electron transport layer, and a cathode (not shown in the figures), and the like. When power is supplied to an appropriate voltage, the positive holes combine with the cathode charges in the light-emitting layer to produce light, thereby producing the three primary colors of red, green, and blue R, G, B.
The gap 303 is present so that the reflected light of the target object with the fingerprint information can pass through the light-emitting substrate 30 and reach the fingerprint identification module 10 at the bottom layer.
In some embodiments, as shown in fig. 3, fig. 3 is a schematic diagram of a second structure of a fingerprint detection device according to an embodiment of the present application. The first detecting device 101 includes a plurality of first detecting units 1011, the second detecting device 102 includes a plurality of second detecting units 1021, and the plurality of first detecting units 1011 and the plurality of second detecting units 1021 are disposed at intervals.
The first detecting units 1011 and the second detecting units 1021 may be arranged at intervals as shown in fig. 3, or a plurality of first detecting units 1011 are arranged at two sides of a plurality of second detecting units 1021 as shown in fig. 2, wherein the plurality of first detecting units 1011 are tightly connected and the plurality of second detecting units 1021 are tightly connected.
In some embodiments, as shown in fig. 4, at least two sides of the first adhesive layer 20 are provided with a heat conducting layer 70, and the heat conducting layer 70 is used for conducting heat generated by the fingerprint identification module 10 away.
Specifically, at least two sides or the periphery of the first adhesion layer 20 are provided with the heat conduction layer 70, and the heat conduction layer 70 can effectively reduce the temperature of the electronic device 1000, so as to reduce the influence of the thermal effect of the electronic device 1000 on the temperature measurement precision of the detection device.
In some embodiments, the vertical thickness of the heat conductive layer 70 is smaller than the sum of the vertical thicknesses of the first adhesive layer 20 and the fingerprint identification module 10.
Specifically, the heat conduction layer 70 may be disposed on the two sides or the periphery of the first adhesion layer 20 and the fingerprint identification module 10, and the heat conduction layer 70 is used for guiding heat generated by the fingerprint identification module 10 out of the electronic device 1000, so as to effectively reduce the temperature of the fingerprint identification module 10.
The fingerprint detection device 100 provided in the embodiment of the present application includes: the fingerprint identification module 10, the first adhesive layer 20, the light-emitting substrate 30, the second adhesive layer 40 and the first cover plate 50 are sequentially stacked from bottom to top; the fingerprint identification module 10 includes a first detection device 101, where the first detection device 101 is configured to receive infrared light emitted by a target object when the target object approaches the first cover 50, and determine whether a temperature of the target object is within a preset temperature range according to the infrared light emitted by the target object. Therefore, whether the target to be detected is a living body can be detected, and the safety of the electronic equipment is improved.
For further description of the present application, the following description is made in the direction of a manufacturing method of a fingerprint detection device.
The embodiment of the application further provides a preparation method of the fingerprint detection device, which comprises the following steps:
providing a fingerprint identification module, and arranging a first adhesive layer on the fingerprint identification module;
the fingerprint identification module comprises a first laminating layer, a second laminating layer and a first cover plate, wherein the first laminating layer is sequentially provided with a light-emitting substrate, the second laminating layer and the first cover plate, a first detection device is integrated on the fingerprint identification module and used for receiving infrared light emitted by a target object and judging whether the temperature of the target object is within a preset temperature range or not according to the infrared light emitted by the target object when the target object is close to the first cover plate.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The fingerprint detection device and the electronic device provided by the embodiment of the present application are described in detail above, and a specific example is applied in the description to explain the principle and the implementation of the present application, and the description of the above embodiment is only used to help understand the technical scheme and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (6)
1. A fingerprint detection device, comprising:
the fingerprint identification module, the first laminating layer, the light-emitting substrate, the second laminating layer and the first cover plate are sequentially stacked from bottom to top; wherein the content of the first and second substances,
the fingerprint identification module comprises a first detection device, wherein the first detection device is used for receiving infrared light emitted by a target object when the target object approaches the first cover plate, and judging whether the temperature of the target object is within a preset temperature range according to the intensity of the infrared light emitted by the target object;
the first cover plate is provided with a second cover plate which is transparent to visible light so as to converge infrared light emitted by the target object;
the second detection device is used for receiving reflected light with fingerprint information, the reflected light is formed by reflecting the emitted light emitted by the light-emitting substrate by the target object, and the first detection devices are arranged on at least two sides of the second detection device; or
The first detection device comprises a plurality of first detection units, the second detection device comprises a plurality of second detection units, and the plurality of first detection units and the plurality of second detection units are arranged at intervals.
2. The fingerprint sensing device of claim 1, wherein the light-emitting substrate comprises:
a backplane, and R, G, B pixels regularly arranged on the backplane, the emitted light being light emitted by the R, G, B pixels.
3. The fingerprint sensing device of claim 2, wherein there are gaps between the R, G, B pixels, the gaps being configured to allow the emitted light to pass from the gaps to the fingerprint identification module.
4. The fingerprint sensing device of claim 1, wherein the first adhesive layer is provided with a heat conducting layer on at least two sides thereof, and the heat conducting layer is configured to conduct away heat generated by the fingerprint identification module.
5. The fingerprint sensing device of claim 4, wherein a vertical thickness of the thermally conductive layer is less than a sum of vertical thicknesses of the first adhesive layer and the fingerprint identification module.
6. An electronic device, comprising: the method comprises the following steps: a housing and a fingerprint detection device, the fingerprint detection device being disposed on the housing, the fingerprint detection device being as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811558092.XA CN109684983B (en) | 2018-12-19 | 2018-12-19 | Fingerprint monitoring device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811558092.XA CN109684983B (en) | 2018-12-19 | 2018-12-19 | Fingerprint monitoring device and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109684983A CN109684983A (en) | 2019-04-26 |
| CN109684983B true CN109684983B (en) | 2021-02-26 |
Family
ID=66186433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811558092.XA Active CN109684983B (en) | 2018-12-19 | 2018-12-19 | Fingerprint monitoring device and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109684983B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4553002B2 (en) * | 2007-12-05 | 2010-09-29 | ソニー株式会社 | Display device |
| JP5326792B2 (en) * | 2009-05-14 | 2013-10-30 | ソニー株式会社 | Vein imaging device, positional deviation interpolation method and program |
| CN103136507A (en) * | 2011-11-26 | 2013-06-05 | 陈亘朝 | Fingerprint shape mixing recognition device |
| CN102663355A (en) * | 2012-03-27 | 2012-09-12 | 天津理工大学 | Identification system based on combination of dorsal hand vein and hand shape and method thereof |
| CN105279504A (en) * | 2015-11-30 | 2016-01-27 | 南昌欧菲生物识别技术有限公司 | Fingerprint identification device, fingerprint identification method and terminal device |
| CN107025451B (en) * | 2017-04-27 | 2019-11-08 | 上海天马微电子有限公司 | A kind of display panel and display device |
| CN108388844B (en) * | 2018-02-01 | 2020-12-22 | 上海天马有机发光显示技术有限公司 | Display panel, display device and manufacturing method of display panel |
-
2018
- 2018-12-19 CN CN201811558092.XA patent/CN109684983B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109684983A (en) | 2019-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110088768B (en) | Fingerprint recognition device and electronic equipment under screen | |
| EP3262568B1 (en) | Multifunction fingerprint sensor | |
| JP4844481B2 (en) | Imaging apparatus and apparatus equipped with the same | |
| WO2019114276A1 (en) | Fingerprint recognition device, fingerprint recognition method, and display device | |
| CN103797344B (en) | Wireless Telecom Equipment with integrated electromagnetic radiation sensor | |
| WO2020133344A1 (en) | Fingerprint identification device and electronic equipment | |
| CN110520863A (en) | Three-dimensional optical pattern sensing is carried out to fingerprint using lower optical sensor module is shielded | |
| CN108513666B (en) | Under-screen biological feature recognition device and electronic equipment | |
| CN110100250B (en) | Fingerprint identification device and method and electronic equipment | |
| EP3268738B1 (en) | Wrist worn mobile alcohol and offender monitoring system | |
| CN108664854A (en) | Fingerprint imaging module and electronic equipment | |
| CN109616015A (en) | Display panel and display device | |
| CN109684983B (en) | Fingerprint monitoring device and electronic equipment | |
| CN112418093A (en) | Fingerprint identification structure, display module assembly and display device | |
| JP5834230B2 (en) | Electronics | |
| WO2021056392A1 (en) | Optical fingerprint apparatus, electronic device, and method for measuring distance | |
| WO2021169919A1 (en) | Fingerprint recognition substrate, fingerprint recognition method, and display device | |
| KR20170033058A (en) | Sensor package and method for distinguishing fake fingerprint of the same | |
| US11749015B2 (en) | Under display terahertz biometric imaging arrangement | |
| CN212513341U (en) | Electronic device | |
| CN111898397B (en) | Grain recognition device | |
| CN108388826B (en) | Electronic device | |
| CN212135455U (en) | Biological characteristic detection device and electronic equipment | |
| CN110059523A (en) | Photodiode and forming method, imaging modules, identity recognition device and method | |
| CN218446736U (en) | Facial feature recognition system based on deep learning |
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 |