WO2022141605A1 - 光学指纹检测装置和电子设备 - Google Patents

光学指纹检测装置和电子设备 Download PDF

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Publication number
WO2022141605A1
WO2022141605A1 PCT/CN2020/142596 CN2020142596W WO2022141605A1 WO 2022141605 A1 WO2022141605 A1 WO 2022141605A1 CN 2020142596 W CN2020142596 W CN 2020142596W WO 2022141605 A1 WO2022141605 A1 WO 2022141605A1
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WO
WIPO (PCT)
Prior art keywords
optical
fingerprint detection
electronic device
optical fingerprint
accommodating area
Prior art date
Application number
PCT/CN2020/142596
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English (en)
French (fr)
Inventor
乔胜强
Original Assignee
深圳市汇顶科技股份有限公司
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Application filed by 深圳市汇顶科技股份有限公司 filed Critical 深圳市汇顶科技股份有限公司
Priority to PCT/CN2020/142596 priority Critical patent/WO2022141605A1/zh
Publication of WO2022141605A1 publication Critical patent/WO2022141605A1/zh

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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

Definitions

  • the present application relates to the technical field of biometric detection, and more particularly, to an optical fingerprint detection device and an electronic device.
  • biometric technology fingerprint detection technology is widely used in mobile terminal design, automotive electronics, smart home and other fields. Consumers have increased functional requirements for various electronic terminal products, and at the same time require products to be as thin and light as possible and have good waterproof performance.
  • the mainstream fingerprint detection devices are mainly capacitive fingerprint detection devices and optical fingerprint detection devices.
  • capacitive fingerprint detection devices are generally arranged on the surface of electronic equipment and directly contact with the user's finger, which cannot meet the requirements of non-porous design and waterproof of electronic equipment.
  • the optical fingerprint detection device is generally installed inside the display screen of the electronic device or below the display screen, and the integration inside the display screen will have a certain impact on the display function of the display screen.
  • the transmittance of the sensor gradually decreases, which will affect the fingerprint detection performance of the optical fingerprint detection device disposed under the display screen.
  • buttons are usually provided on the surface of the electronic device to respond to the operation of the user's finger, and the arrangement of the buttons also hinders the non-porous design of the electronic device.
  • the embodiments of the present application provide an optical fingerprint detection device and an electronic device, which can realize the non-porous design of the electronic device while taking into account the performance of the optical fingerprint detection device.
  • an optical fingerprint detection device which is arranged on the side of an electronic device, the electronic device includes a side cover plate and a side structure member, and a first accommodating area is formed in the side structure member, and the side cover plate is formed.
  • the optical fingerprint detection device includes: a light source and an optical fingerprint detection module; Wherein, the light source is used for emitting optical signals to the finger at the side cover, at least part of the optical fingerprint detection module is arranged in the first accommodating area, and the optical fingerprint detection module is used for receiving the optical signal
  • the fingerprint light signal carrying the fingerprint information of the finger is formed after reflection or transmission of the finger, and the fingerprint light signal is used to detect the operation of the finger so that the electronic device performs processing associated with the operation of the finger.
  • the optical fingerprint detection device is embedded in the first accommodating area on the side of the electronic device, and the side cover plate of the electronic device is used to cover the first accommodating area, which can be used for the first accommodating area.
  • the optical fingerprint detection device in the placement area plays a protective role to ensure the fingerprint detection performance of the optical fingerprint detection device.
  • the detection of finger operations can be realized directly through the optical fingerprint detection device provided in the embodiment of the present application, so that the electronic device
  • the processing associated with the operation of the finger such as volume control and power switch processing, etc., is performed to realize the non-porous design of the electronic device and meet the waterproof performance of the electronic device.
  • arranging the optical fingerprint detection device on the side of the electronic device can avoid occupying the space of the display screen on the front of the electronic device, which is conducive to the realization of full-screen display. At the same time of aesthetics, it is convenient for the user's finger operation and improves the user experience.
  • the fingerprint light signal is used to detect that the finger touches different positions on the side cover, so that the electronic device can adjust the volume; or, the fingerprint light signal is used to detect that the finger is on the side cover. Sliding on the side cover plate allows the electronic device to adjust the volume.
  • the fingerprint light signal is used to detect the touch time of the finger on the side cover, so as to enable the electronic device to perform a power switch operation.
  • the first accommodating area is a through hole
  • a carrier plate is disposed in the second direction of the side cover, and the second direction faces the inner side of the side of the electronic device;
  • the optical fingerprint detection module It is fixed to the carrier board so that at least part of the optical fingerprint detection module is located in the through hole.
  • the first accommodating area is a groove
  • the optical fingerprint detection module is fixed to the bottom surface of the groove, so that the optical fingerprint detection module is located in the groove.
  • the first accommodating area is a through hole or a groove
  • the optical fingerprint detection module is fixed to the side cover through a connector, so that at least part of the optical fingerprint detection module is located in the first in an accommodation area.
  • the optical fingerprint detection module includes: an optical component disposed in a second direction of the side cover, the second direction facing the inner side of the side of the electronic device; a fingerprint sensor disposed in the optical the second direction of the assembly; a first substrate, electrically connected to the fingerprint sensor, and disposed in the second direction of the fingerprint sensor to support the fingerprint sensor and the optical assembly; wherein the optical assembly is used for guiding the fingerprint The light signal enters the fingerprint sensor to detect the operation of the finger.
  • the optical fingerprint detection module includes an optical component and a fingerprint sensor; the length of the optical component along the long side of the side of the electronic device is greater than the length of the optical component along the side of the electronic device and the length of the fingerprint sensor along the long side of the side of the electronic device is greater than the length of the fingerprint sensor along the short side of the side of the electronic device.
  • the optical fingerprint detection module includes a plurality of the optical components and a plurality of the fingerprint sensors, and the plurality of the optical components correspond to the plurality of the fingerprint sensors one-to-one; a plurality of the optical components and a plurality of the fingerprint sensors The fingerprint sensors are all arranged along the long sides of the side of the electronic device.
  • the light source is disposed in the first accommodating area and is located around the fingerprint sensor.
  • the optical fingerprint detection module further includes: a light blocking structure disposed between the optical component and the fingerprint sensor and the light source.
  • a second accommodating area is further formed in the side structure, and the light source is disposed in the second accommodating area; wherein, the second accommodating area is the same as the first accommodating area Disposed adjacently, the side cover plate is disposed in the first direction of the second accommodating area and covers the second accommodating area.
  • the optical component includes: a microlens array; at least one diaphragm layer disposed below the microlens array, and each diaphragm layer of the at least one diaphragm layer is formed with a plurality of light-passing layers A small hole; the microlens array is used for converging the fingerprint light signal into a plurality of light-passing holes in the at least one aperture layer, and the fingerprint light signal is transmitted to the fingerprint sensor through the plurality of light-passing holes for processing. Detection of the operation of the finger.
  • each microlens in the microlens array corresponds to at least one light-passing aperture in each diaphragm layer, and at least one pixel unit in the fingerprint sensor; the fingerprint sensor is used for A fingerprint light signal in at least one direction is received to acquire at least one fingerprint image for detecting the operation of the finger.
  • the side cover plate is an arc surface cover plate, and the arc surface of the arc surface cover plate protrudes toward the outside of the side surface of the electronic device.
  • the material of the partial cover of the side cover corresponding to the first accommodating area is a transparent material, or the partial cover includes a filter material, and the filter material is used to pass the target The optical signal of the wavelength band, and the optical signal of the non-target wavelength band is filtered.
  • a pressure-sensitive layer is provided on a partial cover of the side cover corresponding to the first accommodating area, and the pressure-sensitive layer is used for sensing the touch of the finger to generate an indication signal, the indication The signal is used to indicate whether the optical fingerprint detection device is working.
  • an indication module is provided at the first accommodating area, and the indication module is used to indicate the position of the optical fingerprint detection module; or, in the side cover plate corresponding to the first accommodating area
  • the color and/or pattern of the partial cover differs from other areas in the side cover.
  • the light source is multiplexed as the indicating module.
  • an electronic device comprising: a side structure member, in which a first accommodating area is formed; a side cover plate, disposed in a first direction of the first accommodating area and covering the first accommodating area , the first direction is toward the outside of the side surface of the electronic device; as in the first aspect or the optical fingerprint detection device in any possible implementation manner of the first aspect.
  • the first accommodating area is a through hole
  • the electronic device further includes: a carrier board, the carrier board is disposed in a second direction of the side cover, and the second direction faces the side of the electronic device.
  • the inner side of the side surface; the carrier board is used to support the optical fingerprint detection module, so that at least part of the optical fingerprint detection module is located in the through hole, and the carrier board is a mechanical structural component or an electrical structural component.
  • the electronic device further includes: a connector for connecting the optical fingerprint detection module to the side cover, so that at least part of the optical fingerprint detection module is located in the first accommodating area , the connector includes an adhesive layer.
  • FIG. 1 is a schematic diagram of an electronic device according to an embodiment of the present application.
  • FIG. 2 is a schematic cross-sectional view of the electronic device in FIG. 1 .
  • FIG. 3 is a schematic structural diagram of an optical fingerprint detection device according to an embodiment of the present application.
  • FIG. 4 is another schematic structural diagram of an optical fingerprint detection device according to an embodiment of the present application.
  • FIG. 5 is another schematic structural diagram of an optical fingerprint detection device according to an embodiment of the present application.
  • FIG. 6 is another schematic structural diagram of an optical fingerprint detection device according to an embodiment of the present application.
  • FIG. 7 is another schematic structural diagram of an optical fingerprint detection device according to an embodiment of the present application.
  • FIG. 8 is another schematic structural diagram of an optical fingerprint detection apparatus according to an embodiment of the present application.
  • FIG. 9 is another schematic structural diagram of an optical fingerprint detection device according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of several position designs of the light source according to an embodiment of the present application.
  • FIG. 11 is another schematic structural diagram of an optical fingerprint detection device according to an embodiment of the present application.
  • FIG. 12 is another schematic structural diagram of an optical fingerprint detection device according to an embodiment of the present application.
  • FIG. 13 is another schematic structural diagram of an optical fingerprint detection device according to an embodiment of the present application.
  • FIG. 14 is another schematic structural diagram of an optical fingerprint detection device according to an embodiment of the present application.
  • FIG. 15 is another schematic structural diagram of an optical fingerprint detection apparatus according to an embodiment of the present application.
  • embodiments of the present application can be applied to optical biometric identification systems, including but not limited to optical fingerprint detection systems and products based on optical fingerprint imaging.
  • the embodiments of the present application only take an optical fingerprint detection system as an example for description, but should not constitute any limitation to the embodiments of the present application, and the embodiments of the present application are also applicable to other systems adopting optical imaging technology and the like.
  • the optical fingerprint detection system can be applied to smart phones, tablet computers, smart wearable devices, and other types of mobile terminals or other electronic devices. More specifically, in the above electronic device, the optical fingerprint detection system may include an optical fingerprint detection device and a processing unit, wherein the optical fingerprint detection device is used for optically imaging the fingerprint, and the processing unit is used for fingerprint detection and identification of the fingerprint image. and other processing to obtain relevant detection results and identification results and provide them to the electronic device, so as to meet the relevant needs of users.
  • the optical fingerprint detection device may be disposed on any surface of the electronic device that interacts with the user, including but not limited to the front, back, or side surface of the electronic device.
  • the electronic device in which the optical fingerprint detection system provided by the embodiment of the present application is located is a mobile phone, wherein the optical fingerprint detection device may be disposed on the side of the electronic device and integrated with and integrated with the electronic device, as an example , the optical fingerprint detection device can be embedded and arranged on the side of the electronic device, or can be arranged flat on the side of the electronic device.
  • the optical fingerprint detection device is provided in the electronic device without opening holes on the surface of the electronic device.
  • the optical fingerprint detection device is provided to realize the non-porous design of the electronic device and meet the waterproof performance of the electronic device.
  • arranging the optical fingerprint detection device on the side of the electronic device can avoid occupying the space of the display screen on the front of the electronic device, which is conducive to the realization of full-screen display. At the same time of aesthetics, it is convenient for the user's finger operation and improves the user experience.
  • the optical fingerprint detection device may be an independent component provided on the side of the mobile phone, and is only used to realize the fingerprint detection function.
  • the optical fingerprint detection device in addition to the fingerprint detection function, can further implement other target functions in the electronic device that need to interact with the user, for example, the target function includes but is not limited to the switch of the electronic device Power function and/or control volume function.
  • the target function includes but is not limited to the switch of the electronic device Power function and/or control volume function.
  • all functions in the electronic device that need to interact with the user can be implemented by the optical detection device, so as to save space in the electronic device.
  • the non-porous design of the electronic device can be realized, and the waterproof performance of the electronic device can be satisfied.
  • the electronic device on the basis of successful fingerprint detection, the electronic device can be restarted/wake-up, or the volume of the electronic device can be adjusted, which can improve the security performance of the electronic device and improve user experience.
  • FIG. 1 is only schematically illustrated by taking a mobile phone as an example, and the electronic device may also be any other type of electronic device, which is not specifically limited in this embodiment of the present application.
  • FIG. 2 shows a schematic cross-sectional view of the electronic device in FIG. 1 along the XZ axis.
  • the positive direction of the Z axis is the direction toward the outside of the side surface of the electronic device, and the negative direction of the Z axis is the direction toward the inner side of the side surface of the electronic device.
  • the X axis is the short side direction of the side of the electronic device, and the Y axis is the long side direction of the side of the electronic device.
  • the electronic device 1 includes: a side structure member 201 , a side cover 202 and an optical fingerprint detection device 100 , and the optical fingerprint detection device 100 is arranged on the side of the electronic device 1 . Specifically, it can be fixedly arranged on the side of the mobile phone.
  • a first accommodating area is formed in the side structural member 201, and the side cover 30 is disposed in the first direction of the first accommodating area and covers the first accommodating area.
  • One direction is toward the outside of the side surface of the electronic device 1 , that is, the positive direction of the Z-axis shown in FIG. 2 .
  • the optical fingerprint detection device 100 includes a light source and an optical fingerprint detection module, wherein the light source is used to emit a light signal to the user's finger at the side cover 202, and at least part of the optical fingerprint detection module can be disposed at the first accommodating area. , the optical fingerprint detection module is used to receive the fingerprint light signal carrying the fingerprint information of the finger formed after the light signal emitted by the light source is reflected or transmitted by the finger. The fingerprint light signal is used to detect the operation of the finger so that the electronic device can communicate with the finger. The processing associated with the operation.
  • the electronic device 1 in addition to the above-mentioned side structure member 201, side cover 202 and optical fingerprint detection device 100, also includes a display screen 10, a middle frame 20, a back cover 40 and Relevant components of other electronic devices not shown in FIG. 2 .
  • the side structure 201 in the embodiment of the present application may be a partial structure in the middle frame 20 located on the side of the electronic device, or the side structure 201 may be an independent structure disposed on the side of the electronic device.
  • the side cover 202 is arranged in the first direction of the side structure 201, and the side structure 201 can be used for fixed connection with the side cover 202.
  • the side cover 202 is a shell structure that completely covers the side of the electronic device.
  • the side structure The side cover 201 and the side cover 202 are used to form the side structure of the electronic device 1 together.
  • the optical fingerprint detection device 100 includes a light source and an optical fingerprint detection module, and the mutual cooperation of the two enables the optical fingerprint detection module to detect a fingerprint light signal carrying the fingerprint information of the finger.
  • the light signal can be used to detect the touch condition of the finger on the side cover 202 , and use the finger touch condition detected by the finger to control the electronic device to perform the corresponding operation.
  • the first detection unit in the optical fingerprint detection module can receive the first fingerprint light signal corresponding to the area A, and the optical fingerprint detection module except for Other detection areas outside the first detection unit cannot receive the first fingerprint light signal corresponding to the A area; and if the finger touches the B area of the side cover 202, the corresponding second detection unit in the optical fingerprint detection module It can receive the second fingerprint light signal corresponding to the B area. Other detection areas in the optical fingerprint detection module except the second detection unit cannot receive the second fingerprint light signal corresponding to the B area. Therefore, according to the first fingerprint light The signal and the second fingerprint light signal can correspond to determine whether the finger is located in the A area or the B area on the side cover 202 , which can correspond to determine different positions of the finger on the side cover 202 .
  • the optical fingerprint detection module first receives the first fingerprint light signal corresponding to the A area, and then receives the second fingerprint light corresponding to the B area. According to the different order of receiving the first fingerprint light signal and the second fingerprint light signal, the sliding of the finger at the side cover 202 can be judged correspondingly.
  • the optical fingerprint detection module can continuously receive the first fingerprint light signal corresponding to the area A. According to the receiving time of the first fingerprint light signal, The touch time of the finger on the side cover 202 can be judged correspondingly.
  • the optical fingerprint detection module can also perform other operations of detecting the finger according to the fingerprint light signal received by the optical fingerprint detection module, which is not specifically limited in this embodiment of the present application.
  • the electronic device 1 can judge the operation of the finger at the side cover plate according to the fingerprint light signal received by the above-mentioned optical fingerprint detection module, so that it can further perform processing of different functions according to the operation of the finger at the side cover plate.
  • the electronic device 1 may adjust the volume according to different positions or sliding states of the finger on the side cover.
  • the optical fingerprint detection apparatus 100 provided in the embodiment of the present application can be multiplexed as a volume key of the electronic device 1 .
  • the electronic device 1 may perform a power switch operation according to the touch time of the finger on the side cover.
  • the optical fingerprint detection apparatus 100 provided in the embodiment of the present application can be multiplexed as the power key of the electronic device 1 .
  • the electronic device 1 may include a processor or a controller, and the optical fingerprint detection device 100 forms a corresponding fingerprint electrical signal after receiving the fingerprint optical signal, and the fingerprint electrical signal is used for transmission to the processor or the electronic fingerprint.
  • the processor or the controller is used to detect the operation of the finger according to the fingerprint electrical signal, and control the corresponding function module to perform processing associated with the operation of the finger.
  • the optical fingerprint detection device is embedded in the first accommodating area on the side of the electronic device, and the side cover of the electronic device is used to cover the The first accommodating area can protect the optical fingerprint detection device in the first accommodating area.
  • the processing associated with the operation of the finger such as volume control and power switch processing, etc., is performed to realize the non-porous design of the electronic device and meet the waterproof performance of the electronic device.
  • arranging the optical fingerprint detection device on the side of the electronic device can avoid occupying the space of the display screen on the front of the electronic device, which is conducive to the realization of full-screen display. At the same time of aesthetics, it is convenient for the user's finger operation and improves the user experience.
  • a pressure-sensitive layer may be provided at the partial cover plate of the side cover plate 201 corresponding to the first accommodating area 203, for example, It may include a pressure-sensitive film and/or a heat-sensitive film for sensing the touch of a user's finger or other object at the side cover 201 .
  • the pressure-sensitive layer at the side cover 201 senses the touch of the user's finger, it generates an indication signal to the processor or controller in the electronic device, and then the processor or controller controls the optical fingerprint detection device 100 to turn on to detect the user fingerprints.
  • the optical fingerprint detection device 100 is turned on only when the user's finger or other objects touch the partial cover of the side cover 201 corresponding to the first accommodating area 203 , which can realize the non-porous design of electronic equipment.
  • the power consumption of the optical fingerprint detection device 100 and the power consumption of the electronic equipment in which the optical fingerprint detection device 100 is located can be reduced.
  • fingerprint detection is performed by an optical fingerprint detection device, which can also improve the detection accuracy, and prevent the touch of other objects other than fingers from being able to control the electronic device.
  • an indication module such as an indicator light
  • an indication module may also be disposed in the first accommodating area 203, for indicating to the user. Indicates the location of the optical fingerprint detection device 100 .
  • the indicator light may be arranged on one side of the optical fingerprint detection device 100, or may also be arranged around the optical fingerprint detection device 100, and the specific position of the indicator light is not limited in this embodiment of the present application.
  • the above-mentioned light source 160 can be reused as the indicator light, in other words, the light source 160 can be always on or intermittently lit.
  • the brightness of the light signal emitted by the light source 160 can be fixed or change with time
  • the wavelength band of the light signal emitted by the light source 160 includes, but is not limited to, the visible light band and the infrared light band.
  • the above-mentioned indicator light and the light source 160 are two different light sources.
  • the partial cover of the side cover 201 corresponding to the first accommodating area 203 can be set as luminous glass, or the partial cover of the side cover 201 corresponding to the first accommodating area 203 can be set to be different from other The color of the area, or a specific mark is set in the partial cover of the side cover 201 corresponding to the first accommodating area 203 .
  • This embodiment of the present application does not specifically limit this.
  • FIG. 3 shows a schematic structural diagram of an optical fingerprint detection apparatus 100 provided by an embodiment of the present application.
  • the optical fingerprint detection apparatus 100 shown in FIG. 3 is a view of the electronic device 1 in FIG. 2 rotated to the left by 90°, that is, in FIG. 3 , the side cover 201 on the side of the electronic device is displayed upward.
  • the optical fingerprint detection device 100 includes: an optical assembly 120 , a fingerprint sensor 130 , a first substrate 140 and a light source 160 , wherein the optical assembly 120 , the fingerprint sensor 130 and the first substrate 140 It is the component in the optical fingerprint detection module above.
  • the optical component 120 is connected to the fingerprint sensor 130 , and the fingerprint sensor 130 is electrically connected to the first substrate 140 .
  • the optical component 120 , the fingerprint sensor 130 and the first substrate 140 are sequentially arranged in the second direction of the side cover 201 .
  • the direction is towards the inner side of the side of the electronic device;
  • the light source 160 is used to emit a light signal to the finger at the side cover 201, and the light signal is reflected or transmitted by the finger to form a fingerprint light signal carrying the fingerprint information of the finger, and the optical component 120 is used to guide the fingerprint light signal to enter.
  • the fingerprint sensor 130 is used for fingerprint detection, and on this basis, the detection of the user's finger operation is performed.
  • the first substrate 140 is disposed in the second direction of the fingerprint sensor 130 and is used to transmit relevant electrical signals of the fingerprint sensor 130 , for example, the control signal of the fingerprint sensor 130 and the fingerprint generated by the fingerprint sensor 130 Signal.
  • the first substrate 140 may also be disposed in the second direction of the light source 160 and be electrically connected to the light source 160 for transmitting a control signal of the light source 160 .
  • the optical fingerprint detection module is fixedly disposed in the first accommodating area 203
  • the present application provides the following various embodiments.
  • the first accommodating area 203 is a through hole
  • the first substrate 140 is used to be fixed to the carrier board 204 at the first accommodating area 203 , so that the At least part of the first substrate 140 , the optical assembly 120 and the fingerprint sensor 130 are disposed in the first accommodating area 203 .
  • the above-mentioned carrier board 204 is a structural member inside the electronic device, which has a certain mechanical strength and supporting function, and can be arranged in the first accommodating area 203.
  • the cross-sectional area of the carrier board 204 is smaller than The cross-sectional area of the first accommodating area 203, or, the carrier board 204 can also be located outside the first accommodating area 203, and is disposed on the side of the first accommodating area 203 close to the inside of the electronic device, on the same plane,
  • the cross-sectional area of the carrier plate 204 is larger than the cross-sectional area of the first accommodating region 203 .
  • the carrier board 204 can be connected to the side structure member 202, and the carrier board 204, the side structure member 202 and the side cover plate 201 together form a closed enclosure.
  • the cavity, the optical assembly 120 and the fingerprint sensor 130 are arranged in the closed cavity, which can improve its mechanical stability.
  • the carrier board 204 may be arranged only at the first accommodating area 203, or the carrier board 204 may also be arranged on the entire side surface where the first accommodating area 203 is located.
  • the specific size and specific shape are not limited.
  • the carrier board 204 includes, but is not limited to, a mechanical structural member in an electronic device, or may also be an electrical structural member, and the specific type and specific structure of the carrier board 204 are also not limited in this embodiment of the present application.
  • the carrier board 204 is an electrical structural member, it can be a circuit board in an electronic device
  • the light source 160 can be disposed on the first substrate 140 and electrically connected to the first substrate 140
  • the first substrate 140 can be connected to the carrier board 140 .
  • Board 204 is electrically connected.
  • the light source 160 may not be disposed on the first substrate 140 , but may be disposed on one side of the first substrate 140 and directly electrically connected to the carrier board 204 .
  • the carrier board 204 can be used to implement signal transmission between the fingerprint sensor 130 and/or the light source 160 and other functional modules in the electronic device, for example, the carrier board 204 can be connected to a processor or controller of the electronic device to implement the processor or control control and/or signal processing of the fingerprint sensor 130 and/or the light source 160 by the device.
  • the carrier board 204 is a mechanical structural member
  • the carrier board 204 and the side structural member 202 can be integrally formed, or the carrier board 204 and the side structural member 202 can be two separable structural members .
  • the first substrate 140 is connected to other functional modules in the electronic device, for example, connected to a processor or a controller of the electronic device, through electrical connection components.
  • the installation of the optical fingerprint detection device 100 is easy to operate, has high stability, and can also be applied to various types of electronic devices.
  • the first accommodating area 203 is a through hole
  • the first substrate 140 is used to be directly fixed to the side structural members 202 around the first accommodating area 203
  • the first substrate 140 , the side structure member 202 and the side cover 201 together form a cavity to accommodate and protect the optical assembly 120 and the fingerprint sensor 130 .
  • the first substrate 140 may be fixed to the side structural members 202 around the first accommodating area 203 by an adhesive layer or other fixing methods.
  • the specific fixing method for fixing the first substrate 140 to the side structural members 202 in the embodiment of the present application does not vary. Do limit.
  • the installation of the optical fingerprint detection device 100 does not require the assistance of other structural components, and the installation of the optical fingerprint detection device 100 on the side of the electronic device is directly realized through the first substrate 140, which can save the space of the electronic device. Conducive to the development of miniaturization of electronic equipment.
  • the first accommodating area 203 is a through hole
  • the first substrate 140 is fixed to the side cover 201 through the connecting member 205 , so that the first substrate 140 , at least part of the optical assembly 120 and the fingerprint sensor 130 are disposed in the first accommodating area 203 .
  • the connecting member 205 may be a bracket with an adhesive layer, or the connecting member 205 may only be a connecting adhesive layer.
  • the connecting member 205 can be made of an opaque material, not only used to connect the first substrate 140 and the side cover plate 201 , but also used to block and absorb stray light, so as to improve the performance of the optical fingerprint detection device 100 . Fingerprint imaging performance.
  • the connector 205 can be disposed on the edge area of the first substrate 140 and connected and fixed to the side cover 201, and the fingerprint sensor 130 can be disposed in the middle area of the first substrate 140, so that the optical component 120 and the fingerprint sensor 130 It is arranged in the second direction of the side cover 201 .
  • the light source 160 may be disposed on the first substrate 140 , or, in other examples, the light source 160 may also be connected to the side cover 201 through a connector. Alternatively, the light source 160 may also be separately disposed on the carrier plate 204 at the first accommodating area 203 .
  • the distance between the fingerprint sensor 130 and the optical component 120 in the optical fingerprint detection device 100 and the side cover plate 201 can be kept relatively stable, so that The optical path between the user's finger at the side cover 201 and the optical component 120 is relatively stable, so the fingerprint imaging performance and fingerprint detection performance of the optical fingerprint detection device 100 can be improved.
  • the first accommodating area 203 is a groove
  • the first substrate 140 is used to be fixed to the bottom of the groove
  • the side structure member 202 and the side cover 201 A cavity is formed together to accommodate and protect the optical component 120 , the fingerprint sensor 130 and the first substrate 140 , and the first substrate 140 , the optical component 120 and the fingerprint sensor 130 are all disposed in the first accommodating area 203 .
  • the carrier plate 204 is a mechanical structural member, and the carrier plate 204 and the side structural member 202 are integrally formed.
  • the first substrate 140 can not only be directly fixed to the bottom of the groove so as to be disposed in the first accommodating area 203, but also can be arranged in the first accommodating area 203 as shown in FIG. 5 . In the illustrated embodiment, it is fixed to the side cover plate 201 by means of a connecting piece 205 . Alternatively, on the basis that the first substrate 140 is fixed to the bottom of the groove, a connector 205 is further added to connect the side cover 201 and the first substrate 140 to further enhance the optical fingerprint detection module at the first accommodating area 203 stability.
  • the first substrate 140 may be fixed to the side structural member according to the embodiment shown in FIG. 3 or FIG. 4 . 202 or the first substrate 140 is disposed on the carrier board 204 . To further enhance the stability of the optical fingerprint detection module at the first accommodating area 203.
  • the first accommodating area 203 is a through hole as an example for description below, and the case where the first accommodating area 203 is a groove can be adapted to the relevant description below, which will not be repeated here.
  • the optical signal formed by the reflection or transmission of the finger may also carry biometric information such as pulse, blood oxygen, and veins.
  • biometric information such as pulse, blood oxygen, and veins.
  • the optical fingerprint detection device of the embodiments of the present application can also be used to detect other biometric information such as pulse, blood oxygen, and veins, so as to perform other functions such as living body detection and human health detection.
  • first direction in the above is toward the outer side of the side surface of the electronic device, that is, the “first direction” may be the positive direction of the Z-axis shown in FIGS. 1 to 6 .
  • second direction in the above is toward the inner side of the side surface of the electronic device, that is, the “second direction” may be the negative direction of the Z-axis shown in FIGS. 1 to 6 .
  • upper refers to the "first direction” toward the outside of the electronic device
  • downward refers to the direction toward the outer side of the electronic device.
  • Second Direction on the inside.
  • FIGS. 7 to 13 Schematic diagram of the structure of 100.
  • FIG. 7 shows another schematic structural diagram of the optical fingerprint detection device 100 , and the structural schematic diagram may be a cross-sectional structural schematic diagram along the plane where the XZ axis in FIG. 1 is located.
  • the above-mentioned side cover plate 201 may be an arc surface cover plate, and the arc surface protrudes toward the outer side of the side surface of the electronic device.
  • the side cover 201 includes a first surface and a second surface, wherein the first surface is an arc surface, the first surface is convex toward the outer side of the side surface of the electronic device, and the second surface is It is flat, which is convenient for connecting with the side structure member 202 .
  • the second surface of the side cover 201 may also be an arc surface protruding toward the outer side of the side surface of the electronic device.
  • the side cover 201 may not be an arc cover, but a flat cover.
  • the specific form of the cover is not limited in the embodiments of the present application, which may be designed according to the design of the electronic device. A corresponding design is required.
  • the side cover 201 is an arc cover
  • the first surface of the arc cover is used for contact with the user's finger.
  • the arc cover can improve the contact experience of the user's finger.
  • the camber of the cambered cover can be designed according to actual needs, so as to improve the appearance of the electronic device.
  • the current capacitive fingerprint detection devices installed on the surface of electronic equipment are generally flat structures, which are relatively simple in appearance, have no three-dimensional sense, and have poor customer experience. This leads to problems such as misjudgment of fingerprint recognition, and when the mobile phone is dropped, it will damage the plane of the entire capacitive fingerprint detection device, affect the performance of the fingerprint detection device, and it is not convenient to realize the non-porous design of electronic equipment. And even if a cover plate is set above the capacitive fingerprint detection device, since the detection principle of the capacitive fingerprint detection device is based on the capacitance detection between the finger and the electrode, the cover plate will affect the capacitance between the finger and the electrode, resulting in the capacitive fingerprint detection device.
  • the detected fingerprint signal becomes smaller, thereby affecting the performance of fingerprint detection. Further, if the electronic equipment needs to design an arc cover, if the arc of the arc cover is too large, the distance between the finger and the capacitive fingerprint device is too far, it may be As a result, the fingerprint signal detected by the capacitive fingerprint detection device is unavailable. Therefore, the radian of the arc surface cover cannot be flexibly designed according to actual requirements. To sum up, the capacitive fingerprint detection device is not suitable to be installed under the cover of the electronic device, and the non-porous design of the electronic device cannot be realized. In terms of the aesthetics, adaptability and waterproofness of the electronic device, the optical fingerprint detection device Better than capacitive fingerprint detection devices.
  • the optical component 120 may include: a microlens array 121 and a diaphragm layer 122 disposed below the microlens array 121 .
  • the microlens array 121 includes a plurality of microlenses, and each microlens is used for condensing the light signal above it and transmitting it to the diaphragm layer below it.
  • the diaphragm layer 122 is made of a light absorbing material, and is provided with a plurality of light-passing holes, which are used to select the direction of the light signal after the microlens converges, so that the light signal in the target direction passes through the light-passing hole.
  • the light hole enters the fingerprint sensor 130, and the stray light signal in the non-target direction is absorbed by the light absorbing material that does not pass through the area where the small hole is located, thereby preventing the stray light signal from interfering with fingerprint imaging.
  • the fingerprint sensor 130 includes a pixel array (Pixel Array) formed by a plurality of pixel (Pixel) units, which is used to convert the light signal passing through the diaphragm layer 122 into a corresponding image signal.
  • the fingerprint sensor 130 may be a fingerprint sensor chip fabricated by a semiconductor process, and the optical component 120 may be integrally packaged in the fingerprint sensor chip, or may be independently disposed above the fingerprint sensor chip.
  • FIG. 7 only shows the case where the optical assembly 120 includes one layer of diaphragm layers 122 , and optionally, the optical assembly 120 may also include multiple layers of diaphragm layers 122 .
  • the fingerprint sensor 130 includes a pixel array composed of a plurality of pixel units, each microlens in the microlens array 121 corresponds to at least one light-passing aperture in each diaphragm layer 122, and at least one pixel unit in the pixel array , each microlens transmits the concentrated optical signal to the inside of the corresponding light-passing hole and transmits it to the corresponding pixel unit through the light-passing hole to perform optical fingerprint imaging.
  • multiple pixel units in the fingerprint sensor 130 can be used to receive fingerprint light signals in the same direction, for example, multiple pixel units all receive fingerprint light signals perpendicular to the display screen, or multiple pixel units all receive oblique fingerprint signals.
  • the fingerprint light signal in the specific direction of the display screen.
  • the plurality of pixel units in the fingerprint sensor 130 can also be used to receive fingerprint light signals in different directions to form fingerprint image signals of a plurality of fingerprint images.
  • a first part of the pixel units in the plurality of pixel units receives one direction.
  • the fingerprint light signal of the first fingerprint image is formed;
  • the second part of the pixel unit receives the fingerprint light signal of the other direction to form the fingerprint image signal of the second fingerprint image.
  • the aperture layer 122 may be grown over the fingerprint sensor 130 by semiconductor process growth or other processes, for example, by atomic layer deposition, sputter coating, electron beam evaporation coating, ion beam coating, etc. on the fingerprint sensor A layer of non-light-transmitting material film is prepared on the top of 130, and then photolithography and etching of the pinhole pattern are performed to form a plurality of light-transmitting pinholes. It can be understood that, in the case where the optical assembly 120 includes a plurality of diaphragm layers 122, a transparent medium layer may be passed between the lowest diaphragm layer 122 and the fingerprint sensor 130, as well as between the adjacent diaphragm layers 122. isolate.
  • the optical assembly 120 can also be other light guiding structures, such as an optical lens assembly including one or more optical lenses, a plurality of collimating units or a micro lens.
  • an optical lens assembly including one or more optical lenses, a plurality of collimating units or a micro lens.
  • a collimator layer of the hole array, etc., the specific structure of the optical component 120 is not limited in this embodiment of the present application.
  • the optical assembly 120 adopts the structure shown in FIG. 7 .
  • the optical fingerprint detection device based on optical lens imaging it is not limited by the optical path of lens imaging, and the thickness of the optical assembly is reduced, which is beneficial to The thinning of the optical fingerprint detection device is realized.
  • the optical fingerprint detection device based on the imaging of the collimator layer it uses a microlens array to condense the optical signal, and uses one or more diaphragm layers to guide the direction of the optical signal, which can further improve the fingerprint light intensity. The quality of the signal is improved, thereby improving the fingerprint detection performance of the optical fingerprint detection device.
  • the side cover plate 201 is a curved cover plate
  • the curved cover plate can be used as a convex lens structure, which has the function of condensing light, which will be formed after reflection or transmission of the finger.
  • the fingerprint light signal carrying the fingerprint information is converged to the optical component 120 to increase the light intensity of the fingerprint light signal received by the optical component 120 , thereby further improving the performance of the optical fingerprint detection device 100 .
  • the embodiment shown in FIG. 7 may further include a first substrate 140, and the fingerprint sensor 130 may be disposed on the first substrate 140 through an adhesive layer, the adhesive layer including but not limited to a die attach film ( Die Attach Film, DAF) adhesive layer.
  • the first substrate 140 is used for electrical connection with the fingerprint sensor 130 , and transmits the photoelectrically converted fingerprint electrical signal of the fingerprint sensor 130 to the processing unit to perform subsequent processing operations such as fingerprint detection.
  • the first substrate 140 includes, but is not limited to, a printed circuit board (Printed Circuit Board, PCB), a flexible printed circuit board (Flexible Printed Circuit, FPC), a rigid-flex board, or other types of circuit boards, to which the embodiments of the present application There is no specific limitation.
  • the electrical connection method between the fingerprint sensor 130 and the first substrate 140 includes, but is not limited to, wire bonding (Wire Bonding), tape automated bonding (TAB), flip chip (Flip Chip, FC) ) or other types of electrical connection methods, etc., which are not specifically limited in the embodiments of the present application.
  • a reinforcing plate 141 may be further disposed below the first substrate 140 to enhance the mechanical strength of the FPC and support the fingerprint sensor 130 above it.
  • the reinforcing plate 141 includes, but is not limited to, a reinforcing steel plate, and may also be other types of reinforcing plates in the related art, which are not specifically limited in the embodiments of the present application.
  • the fingerprint sensor 130 can be directly disposed above the FPC, or a window can be formed in the FPC, and the fingerprint sensor 130 can be disposed in the window and above the reinforcing plate.
  • the preparation process is simple and the production can be improved.
  • Efficiency by adopting the latter embodiment, the height of the optical fingerprint detection apparatus 100 can be reduced, thereby reducing the space occupied by the electronic equipment.
  • the first substrate 140 can only be used as a circuit board of the fingerprint sensor 130 for transmitting electrical signals of the fingerprint sensor 130 and supporting the fingerprint sensor 130 and the optical assembly 120 above it.
  • a processing unit and other types of electrical components may also be disposed on a substrate 140 for performing a complete fingerprint detection function.
  • the first substrate 140 can also be a circuit board of other functional modules in the electronic device, and on this basis, it can be multiplexed into a circuit board of the fingerprint sensor 130 at the same time.
  • the optical fingerprint detection device 100 can be fixedly disposed on the side of the electronic device by fixing the reinforcing plate 141 above the carrier board 204 of the electronic device.
  • the side cover 201 is disposed over the optical assembly 120 and the fingerprint sensor 130 , in other words, on a plane perpendicular to the Z direction in FIG. 7 , that is, on the XY plane, the optical assembly 120 and The orthographic projection of the fingerprint sensor 130 is completely located in the orthographic projection of the side cover 201 .
  • the material of the side cover plate 201 may be a transparent material, or the material of the side cover plate 201 may also include a filter material for passing the target wavelength band. It can be understood that the wavelength range of the target wavelength band should include at least part of the wavelength range of the optical signal emitted by the light source 160 , and preferably, the wavelength range of the target wavelength band is the wavelength range of the optical signal emitted by the light source 160 .
  • the transparent material includes, but is not limited to, glass or resin.
  • the side cover plate 201 may be a cover plate structure formed by coating a layer of filter material on a transparent substrate.
  • the layer of optical material can be applied to the inner surface and/or the outer surface of the transparent substrate.
  • the side cover 201 adopts the structural scheme of this embodiment, which can realize the filter function and have strong mechanical strength. When the electronic equipment is affected by external force, it can prevent the external force from causing damage to the optical fingerprint detection device 100, thereby improving the optical fingerprint detection device 100. Reliability of fingerprint detection devices.
  • the light source 160 (not shown in the figure) is used to emit infrared light and/or near-infrared light to the finger above the side cover 201, correspondingly, the infrared light and/or near-infrared light It can be transmitted to the optical assembly 120 through the side cover 201 after being reflected or transmitted by the finger.
  • the side cover 201 needs to transmit light signals in the infrared and/or near-infrared band, in other words, the target band includes the infrared and/or near-infrared band.
  • the inner surface and/or the outer surface of the side cover plate 201 may be coated with infrared-transmitting ink, so as to transmit the light signal in the infrared band and block the interfering light signal in the non-infrared band.
  • infrared and/or near-infrared light is emitted through a light source, and the infrared light and/or near-infrared light transmitted by the finger is mainly used for optical fingerprint imaging to perform fingerprint detection, thereby detecting the operation of the user's finger . Therefore, the position requirement of the light source is not high, and it only needs to satisfy that the infrared light can reach the finger pressing on the cover plate. Therefore, the position of the light source in the optical fingerprint detection apparatus in the embodiment of the present application can be flexibly set according to the space conditions of different electronic devices.
  • the optical fingerprint detection device 100 may further include: a filter layer, which may be disposed between the light path from the side cover 201 to the fingerprint sensor 130 , for passing through the target wavelength band Optical signal, filtering out the optical signal in the non-target band.
  • a filter layer which may be disposed between the light path from the side cover 201 to the fingerprint sensor 130 , for passing through the target wavelength band Optical signal, filtering out the optical signal in the non-target band.
  • the wavelength range of the target wavelength band passed by the filter layer should include at least part of the wavelength range of the optical signal emitted by the light source 160.
  • the wavelength range of the target wavelength band The wavelength range is the wavelength range of the optical signal emitted by the light source 160 .
  • the filter layer can be used to pass the infrared light band and/or the near-infrared band, and filter the non-infrared band, for example Filter out the visible light band to prevent ambient visible light or light leakage from the display from interfering with fingerprint detection.
  • the filter layer may specifically be a filter, which is fixed above the fingerprint sensor 130 through an adhesive layer and used to cover the pixel array area of the fingerprint sensor 130 .
  • the filter layer can also be directly coated on the surface of the fingerprint sensor 130 and packaged in the chip together with the fingerprint sensor 130 .
  • the optical fingerprint detection device 100 may include both the filter material layer and the filter layer in the above-mentioned side cover plate 201 , or may only include the above-mentioned side cover plate 201 .
  • FIG. 8 shows another schematic structural diagram of the optical fingerprint detection apparatus 100 .
  • the optical fingerprint detection device 100 shown in FIG. 8 may be a schematic cross-sectional structure diagram along the plane of the YZ axis in FIG. 1 .
  • FIG. 7 and FIG. 8 may be a schematic cross-sectional view of the same optical fingerprint detection device 100 along a plane where the XZ axis is located and a schematic cross-sectional view along the plane where the YZ axis is located. It can be seen from FIG. 7 and FIG. 8 that the length of the first accommodating area 203 on the side of the electronic device and the optical fingerprint detection device 100 in the Y-axis direction is greater than the length in the X-axis direction.
  • the optical fingerprint detection module includes an optical component 120 and a fingerprint sensor 130 , and a partial first optical component in the one optical component 120 corresponds to a partial first optical component in the fingerprint sensor 130 .
  • sensor array, the first optical component and the first sensor array can form the first detection unit in the optical fingerprint detection module above, and similarly, can also form a plurality of other detection units to detect the corresponding side cover plate Fingerprints at different areas on 202.
  • the length of the optical component 120 along the long-side direction (ie, the Y direction) of the side of the electronic device is greater than the length of the optical component 120 along the short-side direction (ie, the X direction) of the side surface of the electronic device;
  • the length of the fingerprint sensor 130 in the long-side direction (ie, the Y direction) of the side of the electronic device is greater than the length of the fingerprint sensor 130 along the short-side direction (ie, the X direction) of the side of the electronic device.
  • the microlenses in the microlens array 121 in the optical component 120 are circular microlenses or square microlenses, and the microlens array 121 is arranged in M 0 rows along the X-axis direction and N 0 columns along the Y-axis direction , where M 0 and N 0 are positive integers, and M 0 ⁇ N 0 .
  • the pixel arrays in the fingerprint sensor 130 are arranged in M 1 rows along the X-axis direction and N 1 columns along the Y-axis direction, wherein M 1 and N 1 are positive integers, and M 1 ⁇ N 1 .
  • FIG. 9 shows another schematic structural diagram of the optical fingerprint detection apparatus 100 .
  • the above-mentioned FIG. 7 and this FIG. 9 may be a schematic cross-sectional view of another optical fingerprint detection device 100 along a plane where the XZ axis is located and a schematic cross-sectional view along the plane where the YZ axis is located.
  • the optical fingerprint detection device 100 includes: a plurality of optical components 120 and a plurality of fingerprint sensors 130 , and the plurality of optical components 120 are disposed above the plurality of fingerprint sensors 130 in a one-to-one correspondence.
  • the plurality of optical assemblies 120 and the plurality of fingerprint sensors 130 are arranged along the long sides of the side of the electronic device.
  • a fingerprint sensor 130 and a corresponding optical component 120 can form a detection unit in the optical fingerprint detection module, such as the first detection unit or the second detection unit above, to detect the corresponding detection unit on the side cover 202 Fingerprints at an area.
  • the length of each optical component 120 along the long-side direction (ie, the Y direction) of the side of the electronic device is greater than its length along the short-side direction (ie, the X direction) of the side of the electronic device.
  • the length of each fingerprint sensor 130 along the long-side direction (ie, the Y direction) of the side of the electronic device is greater than its length along the short-side direction (ie, the X direction) of the side surface of the electronic device.
  • FIGS. 7 and 8 or FIG. 7 and FIG. 9 are adopted to make full use of the side space of the electronic device, and a long strip-shaped first container is arranged on the side of the electronic device.
  • a longer optical assembly 120 and fingerprint sensor 130 can be set along the long side direction of the electronic device, that is, the Y-axis direction above, or a larger number of optical assemblies 120 and fingerprint sensors 130 can be set to expand
  • the fingerprint detection area is convenient for detecting different positions of the finger on the side cover, and it is also convenient for the operation of the finger on the side cover.
  • one side of the fingerprint sensor 130 can be connected to the first substrate 140 through the first lead 131 , and the first lead 131 can be covered with lead protection glue 132 .
  • the lead protection adhesive 132 In order to support and protect the first lead 131 .
  • the stability of the electrical connection between the first substrate 140 and the fingerprint sensor 130 can be ensured, and further, the performance of the optical fingerprint detection device 100 can be guaranteed.
  • the height of the lead protection glue 132 is not greater than 150 ⁇ m, wherein the height of the lead protection glue 132 refers to the height of the highest point in the Z direction and the first A height between substrates 140 .
  • the light source 160 and the fingerprint sensor 130 may be disposed in the first accommodating area 203 , and the light source 160 may be disposed on the first substrate Above 140 , it is electrically connected to the first substrate 140 .
  • the optical fingerprint detection device 100 further includes: a light blocking structure 170 disposed between the optical component 120 and the fingerprint sensor 130 and the light source 160 to block the above-mentioned interfering light signals.
  • the light blocking structure 170 includes, but is not limited to, an opaque support structure, which can further support the side cover plate 201 while blocking interference light signals.
  • the light blocking structure 170 can be foam, which is in a compressed state and can play a supporting role.
  • the light source 160 and the fingerprint sensor 130 are both arranged on the same first substrate 140, which facilitates the installation of the light source 160, and does not need to provide additional electrical connectors for the light source 160. Common control of the light source 160 and the fingerprint sensor 130 .
  • the light source 160 may not be disposed on the first substrate 140, but may be disposed around the first substrate 140, and the relative positional relationship between the light source 160 and the first substrate 140 is not specifically limited in this embodiment of the present application.
  • the above-mentioned light source 160 may be a point light source, a line light source or a surface light source.
  • the light source 160 may include one or more light emitting diodes (Light Emitting Diode, LED), which are distributed around the fingerprint sensor 130 .
  • LED Light Emitting Diode
  • FIG. 11 shows several schematic diagrams of the position design of the light source 160 in this embodiment of the present application, which may be along the XY in FIG. 1 . Schematic diagram of the cross-sectional structure of the plane where the axis is located.
  • the first accommodating area 203 formed by the side structure member 202 is a square cavity, and the light source 160 and the fingerprint sensor 130 are disposed in the square cavity together.
  • a plurality of light sources 160 are disposed outside the first substrate 140 , on one side of the first substrate 140 , and lined up along the X-axis direction.
  • a plurality of light sources 160 are disposed on the first substrate 140 and are distributed at four corners of the first substrate 140 .
  • the light source 160 may be other than the multiple point light sources shown in (a) or (b) in FIG. 10 , but also other forms of light sources, such as line light sources.
  • the light source 160 can be disposed at any position between the fingerprint sensor 130 and the side structure member 202, in addition to the position shown in (a) or (b) in FIG. 10 , as shown in FIG. 10 . anywhere between the two dashed boxes shown in (c).
  • the light source 160 may also be disposed outside the first accommodating area 203 .
  • the side structures 202 around the first accommodating area 203 are used to block the emitted light signal and/or the light source 160 from the light source 160 .
  • the non-finger reflected light signal directly enters the fingerprint sensor 130 and interferes with fingerprint detection.
  • FIG. 11 shows another schematic structural diagram of the optical fingerprint detection apparatus 100 in this embodiment.
  • the optical fingerprint detection device 100 shown in FIG. 11 may be a schematic cross-sectional structure diagram along the plane of the YZ axis in FIG. 1 .
  • the above-mentioned FIG. 7 and this FIG. 11 may be a schematic cross-sectional view of another optical fingerprint detection device 100 along a plane where the XZ axis is located and a schematic cross-sectional view along the plane where the YZ axis is located.
  • the optical component 120 , the fingerprint sensor 130 and the first substrate 140 are all disposed in the first accommodating area 203 , and the light source 160 is disposed in the second accommodating area 205 formed in the side structure member 202 .
  • the second accommodating area 205 can also be a through hole, a groove or other type of accommodating space, and one end of the through hole or the opening of the groove covers the side cover plate 201 .
  • the first accommodating area 203 and the second accommodating area 205 may be disposed adjacent to each other.
  • the light source 160 can be directly disposed on the carrier board 204 .
  • the light source 160 may also be provided with a second substrate alone, and the second substrate and the first substrate 140 may be disposed on the same plane or close to the same plane for transmitting control signals to the light source 160 for controlling The light source 160 emits light.
  • the second substrate may be a flexible circuit board FPC, and a reinforcing plate may be disposed under the second substrate, and the reinforcing plate and the second substrate are used to jointly support the light source 160 .
  • one end of the second substrate is used to connect to the light source 160
  • the other end of the second substrate can be used to connect to other functional modules of the electronic device to provide power and control signals to the light source 160 .
  • the light source 160 is provided independently from other components of the optical fingerprint detection device 100 . It is convenient to disassemble and maintain the light source 160 .
  • the second accommodating area 205 is flexibly adapted to the needs of different electronic devices.
  • FIG. 11 the schematic structural diagram of the optical fingerprint detection device 100 shown in FIG. 11 is only to illustrate the position design of the light source 160 .
  • the sensor 130 the first substrate 140 and the carrier board 204 .
  • the positions of the light sources 160 shown in FIG. 8 to FIG. 11 above are only schematic illustrations. In addition to the positions shown in the above-mentioned embodiments, the light sources 160 may also be arranged in electronic devices. At any other position, the optical element, for example, a light reflection element, etc., can guide the light signal emitted by the light source 160 to the finger position above the side cover 201 through one or more light reflections. The specific location is not limited.
  • FIG. 12 and FIG. 13 show two other structural schematic diagrams of the optical fingerprint detection device 100 , and the two structural schematic diagrams can be respectively shown along the lines of FIG. 1 is a schematic diagram of the cross-sectional structure of the plane where the XZ axis is located and the plane where the YZ axis is located.
  • the optical fingerprint detection device 100 may further include:
  • the light shielding layer 180 has a first window 1801 formed therein.
  • the first window 1801 is located above the fingerprint sensor 130 for passing the fingerprint light signal to be received by the fingerprint sensor 130 .
  • the light shielding layer 180 can be used to shield stray light signals from entering the fingerprint sensor 130, thereby reducing the interference of environmental factors on the fingerprint identification process.
  • the light shielding layer 180 may be a shielding glue layer.
  • the thickness of the light shielding layer 180 is 10-30 ⁇ m, for example, 20 ⁇ m.
  • the thickness of the light shielding layer 180 may also be other specific values or within a range of other preset values, which is not specifically limited in this application.
  • the light shielding layer 180 may also be replaced by a filter.
  • the filter is used to reduce undesired ambient light in fingerprint sensing to improve the optical sensing of the received light by the fingerprint sensor 130 .
  • the filter can specifically be used to filter out light of a specific wavelength, for example, near-infrared light and part of red light.
  • human fingers absorb most of the energy of light with wavelengths below 580 nm, based on this, filters can be designed to filter light with wavelengths from 580 nm to the infrared to reduce the effect of ambient light on optical detection in fingerprint sensing.
  • At least a part of the above-mentioned optical assembly 120 is located in the first window 1801 .
  • the microlens array 121 in the optical component 120 is located in the above-mentioned first opening 1801 , and at least one aperture layer in the optical component 120 is integrated into the fingerprint sensor chip together with the fingerprint sensor 130 , the surrounding area of the first window 1801 in the light shielding layer 180 is disposed on the surface of the edge area of the fingerprint sensor chip.
  • the optical fingerprint detection device 100 may further include: a support layer 190 disposed between the first substrate 140 and the light shielding layer 180 for supporting the light shielding layer 180 .
  • the support layer 190 is provided with a third opening 1901 , and the fingerprint sensor 130 is arranged in the third opening 1901 .
  • the light shielding layer 180 is disposed on the surface of the support layer 190 and extends toward the fingerprint sensor 130 , and a first window 1801 is formed around the microlens array 121 .
  • the support layer 190 supports a part of the light shielding layer 180, and another part of the light shielding layer 180 is suspended below or supported by the fingerprint sensor 130.
  • the upper surface of the support layer 190 is not higher than the highest point of the upper surface of the microlens array 121 in the optical assembly 120, in other words, the highest point of the support layer 190 in the Z direction is not higher than the optical assembly 120 in the Z direction the highest point on.
  • At least one diaphragm layer in the optical component 120 is integrated with the fingerprint sensor 130 in the fingerprint sensor chip, and the upper surface of the support layer 190 is not higher than the upper surface of the fingerprint sensor chip. , in other words, the highest point of the support layer 190 in the Z direction is not higher than the highest point of the fingerprint sensor chip in the Z direction.
  • the support layer 190 is fixed on the surface of the first substrate 140 by a fixing glue.
  • the material of the support layer 190 includes, but is not limited to, metal, resin, glass fiber composite board, adhesive layer, and the like.
  • the support layer 190 is a polyethylene terephthalate (polyethylene terephthalate, PET) material layer or a polyimide (polyimide, PI) material layer.
  • the support layer 190 may also be a bracket formed of a foam material.
  • the fixing adhesive can be a double-sided adhesive.
  • the disposition of the support layer 190 does not increase the thickness of the optical fingerprint detection device 100 , but only supports the light shielding layer 180 to improve the stability of the light shielding layer 180 .
  • a foam 112 is provided below the side cover 201, and the foam can be in a compressed state to further support the side cover plate 201 .
  • the foam 112 may be disposed at any position in the first accommodating area 203 to support the side cover plate 201 .
  • the foam 112 can be disposed around the optical component 120 and the fingerprint sensor 130, and specifically, can be disposed around the above-mentioned support layer 190 for connecting the first substrate 140 and the side cover plate 201.
  • the foam 112 is disposed above the support layer 190 and the light shielding layer 180 for connecting the light shielding layer 180 and the side cover 201 , the foam layer 112 not only plays the role of supporting the side cover plate 201, but also further plays the role of blocking stray light.
  • the foam layer 112 may be connected between the light shielding layer 180 and the side cover plate 201 by a tape.
  • the foam layer 112 may be provided with a fourth window 1121 penetrating the foam layer 112 .
  • the fourth window 1121 is disposed above the optical assembly 120 , specifically, disposed above the microlens array 121 , so as to be received by the optical assembly 120 and the fingerprint sensor 130 through fingerprint light signals.
  • the area of the fourth opening 1121 is not less than the area of the first opening 1801 in the above-mentioned light shielding layer 180.
  • the fingerprint sensor 130 is connected to the first substrate 140 through the first lead 131 , and the first lead is disposed on one side of the fingerprint sensor 130 .
  • the support layer 190 is disposed on one side of the first lead 131 and the lead protection glue 132 , and the light shielding layer 180 can directly cover the lead protection glue 132 .
  • the light shielding layer 180 may further be provided with a second opening 1802 , wherein the top area of the first lead 131 and the lead protective adhesive 132 is located in the second opening 1802 .
  • a partial light shielding layer 180 is also disposed between the first lead 131 of the fingerprint sensor 130 and the microlens array 121 , and the partial light shielding layer 180 is located at the first opening 1801 and the third opening. between windows 1802.
  • the part of the light shielding layer 180 can not only block stray light, but also block the lead protective adhesive 132 from spreading to the microlens array 121 , so as to prevent the light condensing effect of the microlens array 121 from being affected.
  • the foam 112 , the light shielding layer 180 and the supporting layer 190 between the light source 160 , the optical assembly 120 and the fingerprint sensor 130 can be reused as in FIG. 8 above and the light blocking structure 170 in FIG. 9 .
  • the arrangement of the light source 160 may also adopt any of the above embodiments in FIG. 10 or FIG. 11 , and the relevant design of the light source 160 can be referred to above. Relevant descriptions are not repeated here.
  • the optical fingerprint detection module shown in FIG. 7 to FIG. 13 above corresponds to the first installation method shown in FIG. 3 . It can be understood that, if the optical fingerprint detection module is installed in the first accommodating area 203 in the installation manner shown in FIG. 4 , FIG. 5 or FIG. The relevant descriptions in 13 will not be repeated here.
  • FIG. 14 and FIG. 15 respectively illustrate another aspect of the optical fingerprint detection device 100 in this case.
  • Two schematic diagrams of structures wherein the schematic diagram of the structure shown in FIG. 14 may be a schematic diagram of a cross-sectional structure along the plane of the XZ axis in FIG. 1 , and the schematic diagram of the structure shown in FIG. 15 may be a schematic diagram of the cross-sectional structure along the plane of the YZ axis in FIG. 1 .
  • the first substrate 140 is connected to the side cover 201 through the support layer 190 , the light shielding layer 180 and the foam 112 .
  • the foam 112 should have a connection function.
  • an adhesive layer is provided on the contact surface of the foam 112, the light shielding layer 180 and the side cover 201, so that the foam 112 and the light shielding layer 180 and Stable connection of side cover 201.
  • the foam 112 in FIG. 14 and FIG. 15 can be replaced with an adhesive tape, which has a more stable connection function.
  • the light-shielding layer 180 and the support layer 190 should have a connection function.
  • Adhesive layers should be provided on the connecting surfaces between the two to achieve stable connection between the three.
  • connecting member 205 used for connecting the first substrate 140 and the side cover plate 201 in FIG.
  • a connecting member in addition to the light-shielding layer 180 , the support layer 190 and the foam 112 being reused as the above-mentioned connecting member 205 , a connecting member can also be added on this basis to improve the stability of the connection.
  • the specific solutions of the side cover 201 , the optical component 120 , the fingerprint sensor 130 , the first substrate 140 , the light source 160 , and other components can be referred to the above related descriptions, which will not be repeated here.
  • the embodiment of the present application also provides an electronic device, and the electronic device may include:
  • a side cover plate and a side structure member disposed on the side of the electronic device, wherein a first accommodating area is formed in the side structure member;
  • optical fingerprint detection device according to any one of the above application embodiments.
  • the side cover plate and the side structure member can be the side cover plate 201 and the side structure member 202 in the above application embodiment
  • the first accommodating area can be the first accommodating area 203 in the above application embodiment
  • the optical fingerprint detection The device may be the optical fingerprint detection device 100 in any of the above application embodiments.
  • the optical fingerprint detection device 100 includes an optical fingerprint detection module and a light source 160, and the first substrate 140 in the optical fingerprint detection module can be used to be fixed to the side structure 202 around the first accommodating area 203, so that the The optical assembly 120 and the fingerprint sensor 130 are disposed in the first accommodating area 203 .
  • the first accommodating area 203 is a through hole
  • the electronic device may further include a carrier board, and the carrier board is disposed in the second direction of the side cover 201, and the second direction faces the inner side of the side of the electronic device; the carrier board It is used to support the optical fingerprint detection module, so that at least part of the optical fingerprint detection module is located in the through hole.
  • the first substrate 140 in the optical fingerprint detection module is used to be fixed to the carrier board at the first accommodating area 203 , so that parts of the optical component 120 , the fingerprint sensor 130 and the first substrate 140 are disposed in the first accommodating area 203 . placed in area 203.
  • the carrier board may be the carrier board 204 in the above-mentioned embodiments of the application.
  • the carrier plate 204 may be disposed in the first accommodating area 203 , or the carrier plate 204 may be disposed in the second direction of the first accommodating area 203 .
  • the carrier board 204 is a mechanical structural member or an electrical structural member in the electronic device.
  • the electronic device may further include a connector for connecting the optical fingerprint detection module to the side cover 201, so that at least part of the optical fingerprint detection module is located in the first accommodating area 203, and the connector may be
  • the connector 205 in the above-mentioned embodiments of the application may include an adhesive layer.
  • the disclosed systems and apparatuses may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solutions of the embodiments of the present application.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium.
  • the technical solutions of the present application are essentially or part of contributions to the prior art, or all or part of the technical solutions can be embodied in the form of software products, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

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Abstract

一种光学指纹检测装置和电子设备，在兼顾光学指纹检测装置的性能的同时实现电子设备的无孔化设计。该光学指纹检测装置用于设置于电子设备的侧面，电子设备包括侧面盖板和侧面结构件，侧面结构件中形成有第一容置区域，侧面盖板设置于第一容置区域的第一方向，并覆盖第一容置区域，第一方向朝向电子设备的侧面的外侧；光学指纹检测装置包括：光源和光学指纹检测模组；其中，光源用于发射光信号至侧面盖板处的手指，光学指纹检测模组中的至少部分设置于第一容置区域中，光学指纹检测模组用于接收光信号经过手指反射或透射后形成的携带有手指的指纹信息的指纹光信号，指纹光信号用于检测手指的操作以使电子设备进行与手指的操作关联的处理。

Description

光学指纹检测装置和电子设备 技术领域
本申请涉及生物特征检测技术领域，并且更具体地，涉及一种光学指纹检测装置和电子设备。
背景技术
随着生物识别技术发展，指纹检测技术广泛应用于移动终端设计、汽车电子、智能家居等领域。消费者对各种电子终端产品的功能需求增多的同时要求产品尺寸尽量轻薄，具有良好的防水性能。
目前，主流的指纹检测装置主要为电容指纹检测装置和光学指纹检测装置，其中，电容指纹检测装置一般设置于电子设备的表面，直接与用户手指接触，无法满足电子设备的无孔化设计和防水要求。而光学指纹检测装置一般设置于电子设备的显示屏内部或者显示屏下方，集成于显示屏内部会对显示屏的显示功能造成一定影响，而随着显示屏技术的低功耗的需求，显示屏的透过率逐渐降低，会影响设置在显示屏下方的光学指纹检测装置的指纹检测性能。另外，电子设备的表面通常会设置按键用于响应用户手指的操作，该按键的设置也会阻碍电子设备的无孔化设计。
因此，如何在兼顾光学指纹检测装置的性能的同时实现电子设备的无孔化设计，是一项亟待解决的技术问题。
发明内容
本申请实施例提供一种光学指纹检测装置和电子设备，能够兼顾光学指纹检测装置的性能的同时实现电子设备的无孔化设计。
第一方面，提供一种光学指纹检测装置，用于设置于电子设备的侧面，该电子设备包括侧面盖板和侧面结构件，该侧面结构件中形成有第一容置区域，该侧面盖板设置于该第一容置区域的第一方向，并覆盖该第一容置区域，该第一方向朝向该电子设备的侧面的外侧；该光学指纹检测装置包括：光源和光学指纹检测模组；其中，该光源用于发射光信号至该侧面盖板处的手指，该光学指纹检测模组中的至少部分设置于该第一容置区域中，该光学指纹检测模组用于接收该光信号经过该手指反射或透射后形成的携带有该手指的 指纹信息的指纹光信号，该指纹光信号用于检测该手指的操作以使该电子设备进行与该手指的操作关联的处理。
采用本申请实施例的技术方案，光学指纹检测装置嵌入式设置于电子设备的侧面的第一容置区域中，电子设备的侧面盖板用于覆盖该第一容置区域，可以对第一容置区域中的光学指纹检测装置起到防护作用，保证光学指纹检测装置的指纹检测性能。此外，也不需要在电子设备的表面开孔，设置电源键、音量键等功能按键，而直接通过本申请实施例提供的光学指纹检测装置即可实现手指操作的检测，以使所述电子设备进行与手指的操作关联的处理，例如音量控制和电源开关处理等等，以实现电子设备的无孔设计，满足电子设备的防水性能。此外，将光学指纹检测装置设置于电子设备的侧面，相比于设置于电子设备的正面或者背面，可以避免占用电子设备正面的显示屏的空间，有利于实现全屏显示，在提高整个电子设备的美观度的同时，便于用户的手指操作，提高用户体验。
在一些可能的实施方式中，该指纹光信号用于检测该手指触摸在该侧面盖板处的不同位置，以使该电子设备进行音量的调整；或者，该指纹光信号用于检测该手指在该侧面盖板处的滑动，以使该电子设备进行音量的调整。
在一些可能的实施方式中，该指纹光信号用于检测该手指在该侧面盖板处的触摸时间，以使该电子设备进行电源的开关操作。
在一些可能的实施方式中，该第一容置区域为通孔，该侧面盖板的第二方向设置有载板，该第二方向朝向该电子设备的侧面的内侧；该光学指纹检测模组固定至该载板，使得该光学指纹检测模组中的至少部分位于该通孔中。
在一些可能的实施方式中，该第一容置区域为凹槽，该光学指纹检测模组固定至该凹槽的底面，使得该光学指纹检测模组位于该凹槽中。
在一些可能的实施方式中，该第一容置区域为通孔或者凹槽，该光学指纹检测模组通过连接件固定至该侧面盖板，使得该光学指纹检测模组的至少部分位于该第一容置区域中。
在一些可能的实施方式中，该光学指纹检测模组包括：光学组件，设置于该侧面盖板的第二方向，该第二方向朝向该电子设备的侧面的内侧；指纹传感器，设置于该光学组件的该第二方向；第一基板，与该指纹传感器电连接，并设置于该指纹传感器的该第二方向，以支撑该指纹传感器和该光学组 件；其中，该光学组件用于引导该指纹光信号进入到该指纹传感器中，以进行该手指的操作的检测。
在一些可能的实施方式中，该光学指纹检测模组包括一个该光学组件和一个该指纹传感器；该光学组件沿该电子设备的侧面的长边方向的长度大于该光学组件沿该电子设备的侧面的短边方向的长度；且，该指纹传感器沿该电子设备的侧面的长边方向的长度大于该指纹传感器沿该电子设备的侧面的短边方向的长度。
在一些可能的实施方式中，该光学指纹检测模组包括多个该光学组件和多个该指纹传感器，多个该光学组件与多个该指纹传感器一一对应；多个该光学组件和多个该指纹传感器均沿该电子设备的侧面的长边排列。
在一些可能的实施方式中，该光源设置于该第一容置区域中，并位于该指纹传感器的四周。
在一些可能的实施方式中，该光学指纹检测模组还包括：挡光结构，设置于该光学组件和该指纹传感器与该光源之间。
在一些可能的实施方式中，该侧面结构件中还形成有第二容置区域，该光源设置于该第二容置区域中；其中，该第二容置区域与该第一容置区域相邻设置，该侧面盖板设置于该第二容置区域的第一方向，并覆盖该第二容置区域。
在一些可能的实施方式中，该光学组件包括：微透镜阵列；至少一光阑层，设置于该微透镜阵列下方，该至少一光阑层中每层光阑层中形成有多个通光小孔；该微透镜阵列用于将该指纹光信号汇聚至该至少一光阑层的多个通光小孔中，该指纹光信号通过该多个通光小孔传输至该指纹传感器以进行该手指的操作的检测。
在一些可能的实施方式中，该微透镜阵列中的每个微透镜对应于每层光阑层中的至少一个通光小孔，以及该指纹传感器中的至少一个像素单元；该指纹传感器用于接收至少一个方向的指纹光信号，以获取至少一张指纹图像以进行该手指的操作的检测。
在一些可能的实施方式中，该侧面盖板为弧面盖板，该弧面盖板的弧面朝向该电子设备侧面的外侧凸起。
在一些可能的实施方式中，该侧面盖板中对应于该第一容置区域的局部盖板的材料为透明材料，或者，该局部盖板包括滤光材料，该滤光材料用于 通过目标波段的光信号，滤除非目标波段的光信号。
在一些可能的实施方式中，该侧面盖板中对应于该第一容置区域的局部盖板处设置有感压层，该感压层用于感测该手指触摸以产生指示信号，该指示信号用于指示该光学指纹检测装置是否工作。
在一些可能的实施方式中，该第一容置区域处设置有指示模块，该指示模块用于指示该光学指纹检测模块的位置；或者，该侧面盖板中对应于该第一容置区域的局部盖板的颜色和/或图案与该侧面盖板中的其它区域不同。
在一些可能的实施方式中，该光源复用为该指示模块。
第二方面，提供一种电子设备，包括：侧面结构件，其中形成有第一容置区域；侧面盖板，设置于该第一容置区域的第一方向，并覆盖该第一容置区域，该第一方向朝向该电子设备的侧面的外侧；如第一方面或第一方面中任一种可能的实施方式中的光学指纹检测装置。
在一些可能的实施方式中，该第一容置区域为通孔，该电子设备还包括：载板，该载板设置于该侧面盖板的第二方向，该第二方向朝向该电子设备的侧面的内侧；该载板用于支撑该光学指纹检测模组，使得该光学指纹检测模组中的至少部分位于该通孔中，该载板为机械结构件或者电学结构件。
在一些可能的实施方式中，该电子设备还包括：连接件，用于将该光学指纹检测模组连接至该侧面盖板，使得该光学指纹检测模组的至少部分位于该第一容置区域中，该连接件包括胶层。
附图说明
图1为本申请实施例提供的一种电子设备的示意图。
图2为图1中电子设备的一种截面示意图。
图3为根据本申请实施例的光学指纹检测装置的一种结构示意图。
图4为根据本申请实施例的光学指纹检测装置的另一结构示意图。
图5为根据本申请实施例的光学指纹检测装置的另一结构示意图。
图6为根据本申请实施例的光学指纹检测装置的另一结构示意图。
图7为根据本申请实施例的光学指纹检测装置的另一结构示意图。
图8为根据本申请实施例的光学指纹检测装置的另一结构示意图。
图9为根据本申请实施例的光学指纹检测装置的另一结构示意图。
图10为根据本申请实施例的光源的几种位置设计示意图。
图11为根据本申请实施例的光学指纹检测装置的另一结构示意图。
图12为根据本申请实施例的光学指纹检测装置的另一结构示意图。
图13为根据本申请实施例的光学指纹检测装置的另一结构示意图。
图14为根据本申请实施例的光学指纹检测装置的另一结构示意图。
图15为根据本申请实施例的光学指纹检测装置的另一结构示意图。
具体实施方式
下面将结合附图，对本申请实施例中的技术方案进行描述。
应理解，本申请实施例可以应用于光学生物特征识别系统，包括但不限于光学指纹检测系统和基于光学指纹成像的产品。本申请实施例仅以光学指纹检测系统为例进行说明，但不应对本申请实施例构成任何限定，本申请实施例同样适用于其他采用光学成像技术的系统等。
作为一种常见的应用场景，本申请实施例提供的光学指纹检测系统可以应用在智能手机、平板电脑、智能穿戴设备以及其他类型的移动终端或者其他电子设备中。更具体地，在上述电子设备中，光学指纹检测系统可包括光学指纹检测装置和处理单元，其中，光学指纹检测装置用于对指纹进行光学成像，处理单元用于对指纹图像进行指纹检测和识别等处理，以获取相关的检测结果和识别结果提供给电子设备，从而相应用户的相关需求。在本申请实施例中，光学指纹检测装置可设置于电子设备与用户交互的任意面，包括但不限于是电子设备的正面、背面或者侧面。
作为示例，如图1所示，本申请实施例提供的光学指纹检测系统所在的电子设备为手机，其中，光学指纹检测装置可以设置在电子设备的侧面并与并与电子设备集成设置，作为示例，该光学指纹检测装置可以嵌入设置于电子设备的侧面，或者平整的设置于电子设备的侧面。通过该实施方式在电子设备中设置光学指纹检测装置，不需要在电子设备的表面开孔，设置该光学指纹检测装置，以实现电子设备的无孔设计，满足电子设备的防水性能。此外，将光学指纹检测装置设置于电子设备的侧面，相比于设置于电子设备的正面或者背面，可以避免占用电子设备正面的显示屏的空间，有利于实现全屏显示，在提高整个电子设备的美观度的同时，便于用户的手指操作，提高用户体验。
在一些实施方式中，该光学指纹检测装置可以为设置在手机侧面的一个 独立部件，仅用于实现指纹检测功能。
在另一些实施方式中，该光学指纹检测装置除了可以实现指纹检测功能以外，还可以进一步实现电子设备中其它需要与用户进行交互的目标功能，例如，该目标功能包括但不限于电子设备的开关电源功能和/或控制音量功能。在该实施方式中，可以通过光学检测装置实现电子设备中需要与用户交互的全部功能，以节省电子设备中的空间。此外，通过将光学指纹检测装置集成设置于电子设备中，可以实现电子设备的无孔设计，满足电子设备的防水性能。进一步地，在该实施方式中，可以在指纹检测成功的基础上，再启动/唤醒电子设备，或者调整电子设备的音量，可以提高电子设备的安全性能，以提高用户体验。
可以理解的是，图1中电子设备仅以手机为例进行了示意性说明，该电子设备还可以为其它任意类型的电子设备，本申请实施例对此不做具体限定。
图2示出了图1中电子设备沿XZ轴的截面示意图。其中，Z轴的正方向为朝向电子设备侧面的外侧的方向，Z轴的负方向为朝向电子设备侧面的内侧方向。X轴为电子设备侧面的短边方向，Y轴为电子设备侧面的长边方向。
如图2所示，电子设备1包括：侧面结构件201、侧面盖板202以及光学指纹检测装置100，该光学指纹检测装置100设置于电子设备1的侧面。具体地，其可固定设置于手机的侧面。
具体地，在本申请实施例中，侧面结构件201中形成有第一容置区域，侧面盖板30设置于第一容置区域的第一方向，并覆盖该第一容置区域，该第一方向朝向电子设备1的侧面的外侧，即图2中所示的Z轴正方向。
光学指纹检测装置100包括光源和光学指纹检测模组，其中，光源用于发射光信号至侧面盖板202处的用户手指，光学指纹检测模组的至少部分可设置于该第一容置区域处，光学指纹检测模组用于接收光源发出的光信号经过手指反射或透射后形成的携带有手指的指纹信息的指纹光信号，该指纹光信号用于检测手指的操作以使电子设备进行与手指的操作关联的处理。
可以理解的是，如图2所示，电子设备1中，除了上述侧面结构件201、侧面盖板202以及光学指纹检测装置100外，还包括显示屏10、中框20、背面盖板40以及图2中未示出的其它电子设备的相关组件。
本申请实施例中的侧面结构件201可以为中框20中位于电子设备侧面的局部结构件，或者该侧面结构件201可以为设置于电子设备的侧面的独立结构件。其中，侧面盖板202设置于侧面结构件201的第一方向，该侧面结构件201可用于与侧面盖板202进行固定连接，侧面盖板202为完全覆盖电子设备侧面的外壳结构，侧面结构件201和侧面盖板202用于共同组成电子设备1的侧面结构。
具体地，在本申请实施例中，光学指纹检测装置100包括光源和光学指纹检测模组，两者相互配合可使得光学指纹检测模组检测得到携带有手指的指纹信息的指纹光信号，该指纹光信号可以用于检测手指在侧面盖板202上的触摸情况，利用手指检测得到的手指触摸情况，控制电子设备执行相应的操作。
作为示例，若手指触摸于侧面盖板202的A区域，则对应的，光学指纹检测模组中的第一检测单元可接收对应于A区域的第一指纹光信号，光学指纹检测模组中除第一检测单元外的其它检测区域无法接收对应于A区域的第一指纹光信号；而若手指触摸于侧面盖板202的B区域，则对应的，光学指纹检测模组中的第二检测单元可接收对应于B区域的第二指纹光信号，光学指纹检测模组中除第二检测单元外的其它检测区域无法接收对应于B区域的第二指纹光信号，因而，根据该第一指纹光信号和第二指纹光信号可对应判断手指是位于侧面盖板202上A区域还是B区域，即可对应判断手指在侧面盖板202处的不同位置。
作为另一示例，若手指从侧面盖板202的A区域滑动至B区域，则光学指纹检测模组先接收对应于A区域的第一指纹光信号，然后接收对应于B区域的第二指纹光信号，根据接收第一指纹光信号和第二指纹光信号的顺序不同，可对应判断手指在侧面盖板202处的滑动。
作为第三种示例，若手指持续触摸于侧面盖板202的A区域，则光学指纹检测模组可持续接收对应于A区域的第一指纹光信号，根据该第一指纹光信号的接收时间，可对应判断手指在侧面盖板202的触摸时间。
当然，光学指纹检测模组还可根据其接收的指纹光信号进行检测手指的其它操作，本申请实施例对此不做具体限定。
电子设备1可根据上述光学指纹检测模组接收的指纹光信号，判断手指在侧面盖板处的操作，从而可进一步根据该手指在侧面盖板处的操作执行不 同功能的处理。
作为一种示例，电子设备1可根据手指在侧面盖板处的不同位置或者滑动状态，进行音量的调整。换言之，本申请实施例中提供的光学指纹检测装置100可复用为电子设备1的音量键。
作为另一种示例，电子设备1可根据手指在侧面盖板处的触摸时间，进行电源的开关操作。换言之，本申请实施例中提供的光学指纹检测装置100可复用为电子设备1的电源键。
可以理解的是，在具体实现上，电子设备1中可包括处理器或者控制器，光学指纹检测装置100接收指纹光信号后形成对应的指纹电信号，该指纹电信号用于传输至处理器或者控制器中，处理器或者控制器用于根据该指纹电信号检测手指的操作，并控制相应的功能模块进行与该手指的操作关联的处理。
通过图1和图2的相关说明可知，采用本申请实施例的技术方案，光学指纹检测装置嵌入式设置于电子设备的侧面的第一容置区域中，电子设备的侧面盖板用于覆盖该第一容置区域，可以对第一容置区域中的光学指纹检测装置起到防护作用。此外，也不需要在电子设备的表面开孔，设置电源键、音量键等功能按键，而直接通过本申请实施例提供的光学指纹检测装置即可实现手指操作的检测，以使所述电子设备进行与手指的操作关联的处理，例如音量控制和电源开关处理等等，以实现电子设备的无孔设计，满足电子设备的防水性能。此外，将光学指纹检测装置设置于电子设备的侧面，相比于设置于电子设备的正面或者背面，可以避免占用电子设备正面的显示屏的空间，有利于实现全屏显示，在提高整个电子设备的美观度的同时，便于用户的手指操作，提高用户体验。
可选地，在实现电子设备的无孔设计的基础上，在本申请实施例中，侧面盖板201中对应于第一容置区域203的局部盖板处可设置有感压层，例如，其可包括压敏薄膜和/或热敏薄膜，用于感测用户手指或者其它物体在侧面盖板201处的触摸。当侧面盖板201处的感压层感应到用户手指触摸后，其产生指示信号至电子设备中的处理器或者控制器，进而由处理器或者控制器控制光学指纹检测装置100开启，以检测用户的指纹。
采用该实施方式，仅在用户手指或其它物体触摸于侧面盖板201中对应于第一容置区域203的局部盖板时，才开启光学指纹检测装置100，可以在 实现电子设备无孔化设计的前提下，避免光学指纹检测装置一直处于工作状态，从而降低光学指纹检测装置100的功耗及其所在电子设备的功耗。进一步的，在感压层感测手指触摸的基础上，再通过光学指纹检测装置进行指纹检测，还能够提高检测的准确性，防止非手指的其它物体的触摸也能对电子设备进行操控。
可选地，除了侧面盖板201中对应于第一容置区域203的局部盖板处设置感压层，还可在第一容置区域203中设置指示模块，例如指示灯，用于向用户指示光学指纹检测装置100的所在位置。作为示例，该指示灯可设置于光学指纹检测装置100的一侧，或者也可设置于光学指纹检测装置100的四周，本申请实施例对指示灯的具体位置不做限定。
在一些实施方式中，上述光源160可复用为该指示灯，换言之，光源160可常亮或者间歇点亮，作为示例，该光源160发出的光信号的亮度可固定不变或者随时间变化，该光源160发出的光信号的波段包括但不限于是可见光波段以及红外光波段。当用户手指未触摸于侧面盖板201时，该光源160用作指示灯，当用户手指触摸于侧面盖板201时，该光源160用于充当光学指纹检测的光源。
在另一些实施方式中，上述指示灯和光源160为不同的两个光源，该指示灯的发光方式、发光波长以及发光亮度可参见上文描述或者采用其它实施方式，本申请实施例对此不做具体限定。可选地，该指示灯在第一容置区域203中的设置方式可参考上下文中光源160的设置方式，此处不再详细赘述。
可以理解的是，除了上述在第一容置区域203中设置指示灯以向用户指示光学指纹检测装置100的所在位置以外，还可以通过其它相关技术向用户指示光学指纹检测装置100的所在位置，例如，可将侧面盖板201中对应于第一容置区域203的局部盖板设置为发光玻璃，或者将侧面盖板201中对应于第一容置区域203的局部盖板设置为区别于其它区域的颜色，又或者在侧面盖板201中对应于第一容置区域203的局部盖板中设置特定标记。本申请实施例对此不做具体限定。
图3示出了本申请实施例提供的一种光学指纹检测装置100的示意结构图。为了方便描述，图3中所示的光学指纹检测装置100为图2中电子设备1向左旋转90°后的视图，即图3中，位于电子设备侧面的侧面盖板201朝上显示。
具体地，在图3所示的实施例中，光学指纹检测装置100包括：光学组件120、指纹传感器130、第一基板140和光源160，其中，光学组件120、指纹传感器130和第一基板140为上文中光学指纹检测模组中的组件。
具体地，光学组件120连接于指纹传感器130，指纹传感器130电连接于第一基板140，光学组件120、指纹传感器130以及第一基板140依次设置于侧面盖板201的第二方向，该第二方向朝向所述电子设备的侧面的内侧；
光源160用于发射光信号至侧面盖板201处的手指，该光信号经由该手指反射或透射后形成携带有手指的指纹信息的指纹光信号，光学组件120用于引导该指纹光信号进入到该指纹传感器130中，以进行指纹检测，在此基础上进行用户手指操作的检测。
具体地，在本申请实施例中，第一基板140设置于指纹传感器130的第二方向，用于传输指纹传感器130的相关电信号，例如，指纹传感器130的控制信号和指纹传感器130产生的指纹信号。可选地，如图3所示，第一基板140还可设置于光源160的第二方向，并电连接至该光源160，用于传输光源160的控制信号。
对于光学指纹检测模组如何固定设置于第一容置区域203，本申请提供如下多种实施方式。
可选地，在第一种实施方式中，如图3所示，第一容置区域203为通孔，第一基板140用于固定至第一容置区域203处的载板204，使得该第一基板140、光学组件120和指纹传感器130中的至少部分设置于第一容置区域203中。
具体地，上述载板204为电子设备内部的结构件，其具有一定的机械强度以及支撑作用，其可设置于第一容置区域203中，在同一平面上，该载板204的截面面积小于第一容置区域203的截面面积，或者，该载板204也可以位于第一容置区域203之外，并设置于第一容置区域203靠近电子设备内部的一侧，在同一平面上，该载板204的截面面积大于第一容置区域203的截面面积。可选地，若载板204位于第一容置区域203之外，该载板204可连接于上述侧面结构件202，该载板204、上述侧面结构件202以及上述侧面盖板201共同形成封闭腔体，光学组件120和指纹传感器130设置于该封闭腔体中，能够提高其机械稳定性。
可选地，该载板204可仅设置于第一容置区域203处，或者该载板204 还可设置于第一容置区域203所在的整个侧面，本申请实施例对该载板204的具体大小和具体形态不做限定。
可选地，该载板204包括但不限于是电子设备中的机械结构件，或者也可以是电学结构件，本申请实施例对该载板204的具体类型和具体结构也不做限定。
作为一种示例，若该载板204为电学结构件，其可以为电子设备中的电路板，光源160可设置于第一基板140上与第一基板140电连接，第一基板140可与载板204电连接。或者，光源160也可不设置于第一基板140上，而设置于第一基板140的一侧，直接电连接至载板204。该载板204可用于实现指纹传感器130和/或光源160与电子设备中的其它功能模块的信号传输，例如，载板204可连接至电子设备的处理器或者控制器，以实现处理器或者控制器对指纹传感器130和/或光源160的控制和/或信号处理。
作为另一示例，若该载板204为机械结构件，该载板204与上述侧面结构件202可为一体成型结构，或者该载板204与上述侧面结构件202为可分离的两个结构件。第一基板140通过电连接组件连接至电子设备中的其它功能模块，例如，连接至电子设备的处理器或者控制器。
采用该实施方式，光学指纹检测装置100的安装易于操作，且稳定性较高，也能够适用于多种类型的电子设备。
可选地，在第二种实施方式中，如图4所示，第一容置区域203为通孔，第一基板140用于直接固定至第一容置区域203四周的侧面结构件202，该第一基板140、侧面结构件202以及侧面盖板201共同形成腔体，以容纳和保护光学组件120和指纹传感器130。作为示例，第一基板140可通过胶层或者其它固定方式固定至第一容置区域203四周的侧面结构件202，本申请实施例对第一基板140固定至侧面结构件202的具体固定方式不做限定。
采用该实施方式，光学指纹检测装置100的安装不需要借助于其他结构件的辅助，而直接通过第一基板140直接实现光学指纹检测装置100在电子设备侧面的安装，能够节省电子设备的空间，有利于电子设备小型化的发展。
可选地，在第三种实施方式中，如图5所示，第一容置区域203为通孔，该第一基板140通过连接件205固定至侧面盖板201，使得该第一基板140、光学组件120和指纹传感器130中的至少部分设置于第一容置区域203中。
作为示例，该连接件205可以为具有胶层的支架，或者，该连接件205 可以仅为连接胶层。可选地，该连接件205可为不透光材料制备形成，在用于连接第一基板140和侧面盖板201的同时，还用于阻挡和吸收杂散光，以提高光学指纹检测装置100的指纹成像性能。
可选地，该连接件205可设置于第一基板140的边缘区域，并连接固定至侧面盖板201，指纹传感器130设置于第一基板140的中间区域，使得该光学组件120和指纹传感器130设置于侧面盖板201的第二方向。
在一些示例中，如图5所示，光源160可设置于第一基板140上，或者，在其它示例中，光源160也可通过连接件连接至侧面盖板201。又或者，光源160也可单独设置于第一容置区域203处的载板204上。
通过该实施方式将光学指纹检测装置100设置于第一容置区域203中，可以使得光学指纹检测装置100中的指纹传感器130和光学组件120与侧面盖板201之间的距离相对保持稳定，从而使得侧面盖板201处的用户手指至光学组件120之间的光路相对保持稳定，因此，可以提高光学指纹检测装置100的指纹成像性能以及指纹检测性能。
可选地，在第四种实施方式中，如图6所示，第一容置区域203为凹槽，第一基板140用于固定至凹槽的底部，侧面结构件202以及侧面盖板201共同形成腔体，以容纳和保护光学组件120、指纹传感器130和第一基板140，该第一基板140、光学组件120和指纹传感器130均设置于第一容置区域203中。
可以理解的是，若第一容置区域203为凹槽，即可参见上文中，载板204为机械结构件，且载板204与侧面结构件202为一体成型结构的相关技术方案。
还可以理解的是，若第一容置区域203为凹槽，则第一基板140除了可以直接固定至凹槽的底部，以设置于第一容置区域203中以外，还可按照图5所示的实施方式，通过连接件205固定至侧面盖板201。或者，在第一基板140固定于凹槽的底部的基础上，进一步增加连接件205连接侧面盖板201和第一基板140，以进一步增强光学指纹检测模组在第一容置区域203处的稳定性。
当然，图5所示的实施方式中，也可在光学指纹检测模组设置有连接件205的基础上，进一步按照图3或者图4中的实施方式，将第一基板140固定至侧面结构件202或者将第一基板140设置于载板204上。以进一步增强 光学指纹检测模组在第一容置区域203处的稳定性。
为了方便描述，下文中以第一容置区域203为通孔为例进行说明，第一容置区域203为凹槽的情况可以适应性参见下文的相关描述，此处不再赘述。
可以理解的是，经由手指反射或透射后形成的光信号除了上述携带有手指指纹信息的指纹光信号以外，还可以携带有脉搏、血氧、静脉等生物特征信息。换言之，本申请实施例的光学指纹检测装置除了可以检测指纹以外，还可以用于检测脉搏、血氧、静脉等其它生物特征信息，以进行活体检测、人体健康检测等其它功能。
还可以理解的是，上文中的“第一方向”朝向电子设备的侧面的外侧，即“第一方向”可为图1至图6中所示Z轴的正方向。对应的，上文中的“第二方向”朝向电子设备的侧面的内侧，即“第二方向”可为图1至图6中所示Z轴的负方向。为了便于结合附图对本申请中的相关实施例进行说明，除了特殊情况下的说明以外，下文中的“上方”指朝向电子设备的外侧的“第一方向”，“下方”指朝向电子设备的内侧的“第二方向”。
下面，以图3中所示的光学指纹检测模组在第一容置区域203中的第一种安装方式为例，结合图7至图13说明本申请实施例中其它多种光学指纹检测装置100的结构示意图。
图7示出了光学指纹检测装置100的另一种结构示意图，该结构示意图可为沿图1中XZ轴所在平面的截面结构示意图。
可选地，在本申请实施例中，上述侧面盖板201可为弧面盖板，弧面朝向所述电子设备侧面的外侧凸起。
在一些实施方式中，如图7所示，侧面盖板201包括第一面和第二面，其中，第一面为弧面，该第一面朝向电子设备侧面的外侧凸起，第二面为平面，便于与侧面结构件202进行连接。
或者，在另一些实施方式中，侧面盖板201的第二面也可为与朝向电子设备侧面的外侧凸起的弧面。又或者，在另一些实施方式中，侧面盖板201也可不为弧面盖板，其为平面盖板，本申请实施例对该盖板的具体形态不做限定，其可根据电子设备的设计要求进行相应的设计。
具体地，若侧面盖板201为弧面盖板，则该弧面盖板的第一面用于与用户手指接触，相比于平面盖板，该弧面盖板可以改善用户手指的接触体验，更重要的是，该弧面盖板的弧面弧度可根据实际需求进行相应设计，以提升 电子设备的外观的美观度。
在这一点上，目前设置于电子设备表面的电容指纹检测装置则一般为平面结构，外观上比较单一，没有立体感，客户体验不佳，另外，灰尘等物质经常会很容易吸附在平面上，导致指纹识别出现误判等问题，且手机在摔落时，会对整个电容指纹检测装置的平面造成损伤，影响指纹检测装置的性能，且也不方便实现电子设备的无孔化设计。且即使在电容指纹检测装置上方设置盖板，由于电容指纹检测装置的检测原理是基于手指与电极之间的电容检测，因此，盖板会影响手指与电极之间的电容，造成电容指纹检测装置检测到的指纹信号变小，从而影响指纹检测的性能，进一步地，若电子设备需求设计弧面盖板，若弧面盖板的弧度过大，手指与电容指纹装置的距离过远，则可能会造成电容指纹检测装置检测到的指纹信号不可用，因此，弧面盖板的弧度不能根据实际需求进行灵活设计。综上，对于电容指纹检测装置，其不适宜设置在电子设备的盖板下，无法实现电子设备的无孔化设计，在电子设备的美观度、适配性以及防水性上，光学指纹检测装置优于电容指纹检测装置。
继续参见图7，可选地，在该光学指纹检测模组中，光学组件120可以包括：微透镜阵列121以及设置于该微透镜阵列121下方的光阑层122。其中，微透镜阵列121包括多个微透镜，每个微透镜用于将其上方的光信号进行会聚后传输至其下方的光阑层。光阑层122为光吸收材料制备形成，其中设置有多个通光小孔，该多个通光小孔用于对微透镜会聚后的光信号进行方向选择，使得目标方向的光信号经过通光小孔进入至指纹传感器130中，而非目标方向的杂散光信号则被非通过小孔所在区域的光吸收材料吸收，从而防止杂散光信号对指纹成像造成干扰。
指纹传感器130中包括多个像素(Pixel)单元形成的像素阵列(Pixel Array)，用于将经过光阑层122的光信号转换为对应的图像信号。具体地，该指纹传感器130可以为通过半导体工艺制作的指纹传感器芯片，上述光学组件120可以一体封装于该指纹传感器芯片中，或者也可以独立设置于指纹传感器芯片的上方。
需要说明的是，图7中仅示出了光学组件120包括一层光阑层122的情况，可选地，光学组件120也可以包括多层光阑层122。指纹传感器130中包括多个像素单元组成的像素阵列，微透镜阵列121中的每个微透镜对应于 每层光阑层122中的至少一个通光小孔，以及像素阵列中的至少一个像素单元，每个微透镜将汇聚的光信号传输至对应的通光小孔内部并经由通光小孔传输到对应的像素单元以进行光学指纹成像。
可选地，该指纹传感器130中的多个像素单元可以用于接收相同方向的指纹光信号，例如，多个像素单元均接收垂直于显示屏的指纹光信号，或者多个像素单元均接收倾斜于显示屏的特定方向的指纹光信号。
可选地，该指纹传感器130中的多个像素单元还可以用于接收不同方向的指纹光信号以形成多张指纹图像的指纹图像信号，例如，多个像素单元中第一部分像素单元接收一个方向的指纹光信号，形成第一指纹图像的指纹图像信号；第二部分像素单元接收另一方向的指纹光信号，形成第二指纹图像的指纹图像信号。
在一些实施方式中，该光阑层122可以通过半导体工艺生长或者其它工艺形成在指纹传感器130上方，例如，通过原子层沉积、溅射镀膜、电子束蒸发镀膜、离子束镀膜等方法在指纹传感器130上方制备一层非透光材料薄膜，再进行小孔图形光刻和刻蚀，形成多个通光小孔。可以理解的是，在光学组件120包括多层光阑层122的情况下，其中最底层光阑层122与指纹传感器130之间，以及相邻的光阑层122之间，可以通过透明介质层进行隔离。
可以理解的是，光学组件120除了可以为图4中所示的结构以外，其还可以为其它光引导结构，例如包括一个或者多个光学透镜的光学透镜组件、具有多个准直单元或者微孔阵列的准直器(collimator)层等，本申请实施例对该光学组件120的具体结构不做限定。
在本申请实施例中，光学组件120采用上述图7中所示的结构，相比于基于光学透镜成像的光学指纹检测装置，可以不受制透镜成像光路的限制，降低光学组件的厚度，有利于实现光学指纹检测装置的轻薄化。此外，相比于基于准直器层成像的光学指纹检测装置，其利用微透镜阵列进行光信号的会聚，且利用一层或者多层光阑层对光信号进行方向引导，能够进一步提高指纹光信号的质量，从而提高光学指纹检测装置的指纹检测性能。
另外，可以理解的是，若侧面盖板201为弧面盖板，在一些实施方式中，该弧面盖板可作为一种凸透镜结构，具有会聚光的作用，即将经由手指反射或透射后形成携带有指纹信息的指纹光信号会聚至光学组件120，提高光学组件120接收的指纹光信号的光强，从而进一步提高光学指纹检测装置100 的性能。
可选地，图7所示的实施例中，还可进一步包括第一基板140，指纹传感器130可通过胶层设置于第一基板140上，该胶层包括但不限于是芯片粘接薄膜(Die Attach Film，DAF)胶层。第一基板140在支撑指纹传感器130的同时，用于与指纹传感器130电连接，并传输该指纹传感器130经过光电转换后的指纹电信号至处理单元中，以执行后续的指纹检测等处理动作。
作为示例，第一基板140包括但不限于印刷电路板(Printed Circuit Board，PCB)，柔性电路板(Flexible Printed Circuit，FPC)、软硬结合板或者其它类型的电路板，本申请实施例对此不作具体限定。可选地，指纹传感器130和第一基板140的电连接方式包括但不限于是：引线键合(Wire Bonding)、载带自动焊(Tape Automated Bonding，TAB)、倒装芯片(Flip Chip，FC)或者其它类型的电连接方式等，本申请实施例对此也不作具体限定。
可以理解的是，如图7所示，若第一基板140为FPC，则其下方可进一步设置补强板141，以增强FPC的机械强度，对其上方的指纹传感器130起到支撑作用。作为示例，该补强板141包括但不限于是补强钢板，其还可以为相关技术中其它类型的补强板，本申请实施例对此不做具体限定。
可选地，指纹传感器130可直接设置于FPC上方，或者FPC中可形成有窗口，指纹传感器130设置于该窗口中并位于补强板上方，采用前一种实施方式，制备工艺简单能够提高生产效率，采用后一种实施方式，则能够降低光学指纹检测装置100的高度，从而减小其占用的电子设备空间。
在一些实施方式中，第一基板140可仅作为指纹传感器130的电路板，用于传输指纹传感器130的电信号并对其上方的指纹传感器130和光学组件120起到支撑作用，进一步地，第一基板140上还可设置处理单元以及其他类型的电学元器件，用于执行完整的指纹检测功能。
在另一些实施方式中，第一基板140也可为电子设备中其它功能模块的电路板，在此基础上，同时复用为指纹传感器130的电路板。
在本申请实施例中，可通过将补强板141固定于电子设备的载板204上方，以将光学指纹检测装置100固定设置于电子设备的侧面。
具体地，在本申请实施例中，侧面盖板201覆盖设置于光学组件120和指纹传感器130上方，换言之，在垂直于图7中Z方向的平面上，即在XY平面上，光学组件120和指纹传感器130的正投影完全位于侧面盖板201的 正投影之中。
可选地，该侧面盖板201的材料可为透明材料，或者，该侧面盖板201的材料也可包括用于通过目标波段的滤光材料。可以理解的是，该目标波段的波长范围应包括光源160发射的光信号的至少部分波长范围，优选地，该目标波段的波长范围即为光源160发射的光信号的波长范围。
作为一种示例，若侧面盖板201的材料为透明材料，该透明材料包括但不限于是玻璃或者树脂。
作为另一种示例，若侧面盖板201的材料包括用于通过目标波段的滤光材料，则该侧面盖板201可为在透明基底上涂覆滤光材料层形成的盖板结构，该滤光材料层可涂覆于透明基底的内表面和/或外表面。侧面盖板201采用该实施方式的结构方案，可在实现滤光功能的同时具有较强的机械强度，在电子设备受到外力影响时，可防止外力对光学指纹检测装置100造成损坏，从而提高光学指纹检测装置的可靠性。
优选地，在一些实施方式中，光源160(图中未示出)用于发射红外光和/或近红外光至侧面盖板201上方的手指，对应的，该红外光和/或近红外光能够经过手指反射或者透射后，再经过侧面盖板201传输至光学组件120。在此情况下，侧面盖板201需透过红外和/或近红外波段的光信号，换言之，上述目标波段包括红外和/或近红外波段。作为示例，侧面盖板201的内表面和/或外表面可涂覆透红外油墨，用于透过红外波段的光信号，而阻挡非红外波段的干扰光信号。
采用本申请实施例的方案，通过光源发射红外和/或近红外光，并主要利用经过手指透射的红外光和/或近红外光进行光学指纹成像，以进行指纹检测，从而检测用户手指的操作。因而对光源的位置要求不高，仅需满足红外光能够达到按压于盖板处的手指即可。因而，可以根据不同的电子设备的空间情况，灵活设置本申请实施例中光学指纹检测装置中的光源位置。
可选地，在图7所示的实施例中，光学指纹检测装置100还可包括：滤光层，其可设置于侧面盖板201至指纹传感器130的光路之间，用于通过目标波段的光信号，滤除非目标波段的光信号。
具体地，与上文中侧面盖板201中的滤光材料层类似，该滤光层通过的目标波段的波长范围应包括光源160发射的光信号的至少部分波长范围，优选地，该目标波段的波长范围即为光源160发射的光信号的波长范围。
若光源160用于发射红外光和/或近红外光至侧面盖板201上方的手指，对应的，该滤光层可用于通过红外光波段和/或近红外波段，而滤除非红外波段，例如滤除可见光波段，防止环境可见光或者显示屏的漏光对指纹检测造成干扰。
可选地，该滤光层具体可以为滤光片，其通过胶层固定于指纹传感器130上方，用于覆盖指纹传感器130的像素阵列区域。或者，该滤光层也可直接镀膜形成于指纹传感器130的表面，与指纹传感器130共同封装于芯片中。
可以理解的是，在本申请实施例中，光学指纹检测装置100可同时包括上述侧面盖板201中的滤光材料层和上述滤光层，或者，也可以仅包括上述侧面盖板201中的滤光材料层和上述滤光层中其中一个。
图8示出了光学指纹检测装置100的另一结构示意图。该图8中所示的光学指纹检测装置100可为沿图1中YZ轴所在平面的截面结构示意图。
可选地，图7和图8可分别为同一光学指纹检测装置100沿XZ轴所在平面的截面示意图和沿YZ轴所在平面的截面示意图。通过图7和图8可以看出，电子设备侧面的第一容置区域203以及光学指纹检测装置100在Y轴方向上的长度大于在X轴方向上的长度。
具体地，在本申请实施例中，光学指纹检测模组包括一个光学组件120和一个指纹传感器130，该一个光学组件120中的局部的第一光学组件对应于指纹传感器130中局部的第一传感阵列，该第一光学组件和第一传感阵列可形成上文中的光学指纹检测模组中的第一检测单元，类似地，还可形成其它多个检测单元，以检测对应于侧面盖板202上不同区域处的手指指纹。
光学组件120沿电子设备的侧面的长边方向(即Y方向)的长度大于光学组件120沿电子设备的侧面的短边方向(即X方向)的长度；且
指纹传感器130沿电子设备的侧面的长边方向(即Y方向)的长度大于指纹传感器130沿电子设备的侧面的短边方向(即X方向)的长度。
作为示例，光学组件120中的微透镜阵列121中的微透镜为圆形微透镜或者方形微透镜，该微透镜阵列121沿X轴方向排列为M 0行，沿Y轴方向排列为N 0列，其中，M 0、N 0为正整数，且M 0＜N 0。类似地，指纹传感器130中的像素阵列沿X轴方向排列为M 1行，沿Y轴方向排列为N 1列，其中，M 1、N 1为正整数，且M 1＜N 1。
作为另一示例，图9示出了光学指纹检测装置100的另一结构示意图。 上述图7和该图9可分别为另一光学指纹检测装置100沿XZ轴所在平面的截面示意图和沿YZ轴所在平面的截面示意图。
如图7和图9所示，光学指纹检测装置100中，包括：多个光学组件120和多个指纹传感器130，多个光学组件120一一对应的设置于该多个指纹传感器130的上方，该多个光学组件120和多个指纹传感器130均沿电子设备的侧面的长边排列。其中，一个指纹传感器130和其对应的一个光学组件120可形成光学指纹检测模组中的一个检测单元，例如上文中的第一检测单元或者第二检测单元，以检测对应于侧面盖板202上某一区域处的手指指纹。
可选地，在本申请实施例中，每个光学组件120沿电子设备的侧面的长边方向(即Y方向)的长度大于其沿电子设备的侧面的短边方向(即X方向)的长度，且每个指纹传感器130沿电子设备的侧面的长边方向(即Y方向)的长度大于其沿电子设备的侧面的短边方向(即X方向)的长度。
在本申请实施例中，采用上文图7和图8，或者图7和图9中所示的技术方案，充分利用电子设备的侧面空间，在电子设备侧面配合设置长条形的第一容置区域，可以在沿电子设备的长边方向，即上文中的Y轴方向上，设置较长的光学组件120和指纹传感器130，或者设置数量较多的光学组件120和指纹传感器130，以扩大指纹检测区域，方便检测手指位于侧面盖板上的不同位置，也方便手指在侧面盖板上的操作。
此外，在图8和图9所示实施例中，指纹传感器130的一侧可通过第一引线131连接至第一基板140，且该第一引线131的周围可包覆有引线保护胶132，以对该第一引线131进行支撑和保护。通过引线保护胶132，能够保证第一基板140和指纹传感器130之间的电连接的稳定性，进一步的，能够保证光学指纹检测装置100的性能。
在本申请实施例中，为了限制整个光学指纹检测装置100的厚度，该引线保护胶132的高度不大于150μm，其中，该引线保护胶132的高度是指其在Z方向上的最高点与第一基板140之间的高度。
如图8和图9所示，在本申请实施例中，在一些实施方式中，该光源160可与指纹传感器130一起设置于第一容置区域203中，且光源160可设置于第一基板140上方，与该第一基板140电连接。
但为了防止光源160的发射光信号和/或非手指反射光信号等干扰光信号直接进入光学组件120和指纹传感器130，对指纹检测造成干扰。该光学 指纹检测装置100还包括：挡光结构170，设置于光学组件120和指纹传感器130与光源160之间，以阻挡上述干扰光信号。
作为示例，该挡光结构170包括但不限于是不透光的支撑结构，其可以在阻挡干扰光信号的同时，进一步支撑侧面盖板201。该挡光结构170可以为泡棉，其处于压缩状态，可以起到支撑作用。
在本申请实施例中，将光源160和指纹传感器130均设置在同一第一基板140上，便于光源160的安装，不需对光源160设置额外的电学连接件，在降低成本的同时方便实现对光源160和指纹传感器130的共同控制。
当然，该光源160也可不设置于第一基板140上，而设置于第一基板140的周围，本申请实施例对光源160和第一基板140的相对位置关系不做具体限定。
可选地，上述光源160可为点光源、线光源或者面光源。作为示例，该光源160可以包括一个或多个发光二极管(Light Emitting Diode，LED)，分布设置于指纹传感器130的周围。
若该光源160与指纹传感器130一起设置于第一容置区域203中，图11示出了该情况下，本申请实施例中光源160的几种位置设计示意图，其可以是沿图1中XY轴所在平面的截面结构示意图。
如图10所示，侧面结构件202形成的第一容置区域203为方形腔体，光源160与指纹传感器130一起设置于该方形腔体中。如图10中的(a)图所示，多个光源160设置于第一基板140之外，并位于第一基板140的一侧，并沿X轴方向排成一行。如图10中的(b)图所示，多个光源160设置于第一基板140上，并分布设置于第一基板140的四角。
当然，光源160除了可以设置为图10中的(a)图或者(b)图中所示的多个点光源以外，其还可以为其它形式的光源，例如线光源等。
此外，光源160除了设置于图10中的(a)图或者(b)图所示位置以外，光源160还可设置于指纹传感器130至侧面结构件202之间的任意位置，即如图10中的(c)图中所示的两个虚线框之间任意位置。
在另一些实施方式中，该光源160也可设置于第一容置区域203之外，此时，第一容置区域203四周的侧面结构件202用于阻挡光源160的发射光信号和/或非手指反射光信号直接进入指纹传感器130，对指纹检测造成干扰。
图11示出了该实施方式下的光学指纹检测装置100的另一结构示意图。该图11中所示的光学指纹检测装置100可为沿图1中YZ轴所在平面的截面结构示意图。上述图7和该图11可分别为另一光学指纹检测装置100沿XZ轴所在平面的截面示意图和沿YZ轴所在平面的截面示意图。
如图11所示，上述光学组件120、指纹传感器130以及第一基板140等均设置于第一容置区域203中，而光源160设置于侧面结构件202中形成的第二容置区域205中。作为一种示例，该第二容置区域205同样可为通孔、凹槽或者其它类型的容置空间，该通孔的一端或者凹槽的开口处覆盖侧面盖板201。可选地，该第一容置区域203和第二容置区域205可相邻设置。
作为一种示例，如图11所示，该光源160可直接设置于载板204上。
或者，在其它示例中，该光源160也可单独设置有第二基板，该第二基板与第一基板140可设置于同一平面上或者接近于同一平面，用于传输控制信号至光源160以控制光源160发光。作为示例，该第二基板可为柔性电路板FPC，其下方可设置有补强板，该补强板和第二基板用于共同支撑光源160。可选地，图11所示的实施例中，第二基板的一端用于连接光源160，其另一端可用于连接至电子设备的其它功能模块，以对光源160提供电源以及控制信号。在该示例中，光源160独立于光学指纹检测装置100的其它部件单独设置。便于对该光源160的拆卸和维修。
在电子设备的侧面中，若提供的可用于容纳光学指纹检测装置100的第一容置区域203的空间较小的情况下，可选用图11中所示的实施例方案，将光源160设置于第二容置区域205中，灵活适配于不同电子设备的需求。
需要说明的是，上文图11中所示的光学指纹检测装置100的结构示意图仅为说明其中光源160的位置设计，除光源160的设计方案以外，其中侧面盖板201、光学组件120、指纹传感器130、第一基板140和载板204的相关技术方案可以参见上文相关描述，此处不再赘述。
还需要说明的是，上文图8至图11中所示的光源160的位置仅为示意性说明，除了上述几种实施例所示出了位置以外，光源160还可以设置于电子设备中的其它任意位置，再通过光学元件，例如，光反射元件等通过一次或者多次光反射将光源160发出的光信号导引至侧面盖板201上方的手指部位即可，本申请实施例对光源160的具体位置不做限定。
在上文实施例中，光学组件120和指纹传感器130周围未设置遮光结构， 因而能够接收较多的干扰光信号，对指纹识别有一定的干扰。为了进一步提高光学指纹检测装置100的性能，在上文实施例的基础上，图12和图13示出了光学指纹检测装置100的另两种结构示意图，该两种结构示意图可分别为沿图1中XZ轴所在平面和YZ轴所在平面的截面结构示意图。
可选地，如图12和图13所示，光学指纹检测装置100还可以包括：
遮光层180，其中形成有第一开窗1801，该第一开窗1801位于指纹传感器130上方，用于通过指纹光信号以被指纹传感器130接收。具体地，遮光层180可以用于遮挡杂散光光信号，防止其进入至指纹传感器130中，从而减小环境因素对指纹识别过程的干扰。
在本申请的一些实施例中，遮光层180可为遮挡胶层，可选地，遮光层180的厚度为10-30μm，例如20μm。当然，遮光层180的厚度也可以为其它具体数值或在一个其他预设数值范围内，本申请对此不做具体限定。
当然，在其他可替代实施例中，也可以利用滤光片替代遮光层180。其中，滤光片用于来减少指纹感应中的不期望的环境光，以提高指纹传感器130对接收到的光的光学感应。滤光片具体可以用于过滤掉特定波长的光，例如，近红外光和部分的红光等。例如，人类手指吸收波长低于580nm的光的能量中的大部分，基于此，滤光片可以设计为过滤波长从580nm至红外的光，以减少环境光对指纹感应中的光学检测的影响。
可选地，在一些实施方式中，上述光学组件120中的至少部分区域位于该第一开窗1801中。
例如，如图12和图13所示，光学组件120中的微透镜阵列121位于上述第一开窗1801中，光学组件120中的至少一光阑层与指纹传感器130一起集成于指纹传感器芯片中，该遮光层180中第一开窗1801的四周区域设置于指纹传感器芯片的边缘区域的表面。
可选地，如图12和图13所示，光学指纹检测装置100还可以包括：支撑层190，设置于第一基板140和遮光层180之间，用于支撑该遮光层180。
在本申请实施例中，支撑层190中设置有第三开窗1901，指纹传感器130设置于该第三开窗1901中。
具体地，遮光层180设置于支撑层190表面，并向指纹传感器130延伸，且在微透镜阵列121四周形成第一开窗1801。换言之，该支撑层190支撑遮光层180中的一部分区域，遮光层180中的另一部分区域下方悬空或者被指 纹传感器130支撑。
可选地，该支撑层190的上表面不高于光学组件120中微透镜阵列121的上表面的最高点，换言之，支撑层190在Z方向上的最高点不高于光学组件120在Z方向上的最高点。
进一步地，如图12和图13所示，光学组件120中至少一层光阑层与指纹传感器130集成在指纹传感器芯片中，该支撑层190的上表面不高于该指纹传感器芯片的上表面，换言之，支撑层190在Z方向上的最高点不高于指纹传感器芯片在Z方向上的最高点。
在一些实施方式中，支撑层190通过固定胶固定在第一基板140的表面。例如，支撑层190的材料包括但不限于金属、树脂、玻纤复合板以及胶层等。例如，支撑层190为聚对苯二甲酸乙二醇酯(polyethylene glycol terephthalate，PET)材料层或者聚酰亚胺(polyimide，PI)材料层。再如，支撑层190也可以是由泡棉材料形成的支架。可选地，固定胶可以为双面胶。
通过本申请实施例的方案，该支撑层190的设置不会额外增加光学指纹检测装置100的厚度，而仅为支撑遮光层180，以提高遮光层180的稳定性。
继续参见图12和图13，为了提高侧面盖板201的可靠性和稳定性，可选地，在侧面盖板201的下方设置有泡棉112，该泡棉可处于压缩状态，以进一步支撑侧面盖板201。
在本申请实施例中，泡棉112可设置于第一容置区域203中的任意位置，以对侧面盖板201进行支撑。可选地，在一些实施方式中，该泡棉112可设置于光学组件120和指纹传感器130四周，具体地，可设置于上述支撑层190的四周，用于连接第一基板140和侧面盖板201。
优选地，在另一些实施方式中，如图12和图13所示，该泡棉112设置于支撑层190和遮光层180上方，用于连接遮光层180和侧面盖板201，该泡棉层112在起到支撑侧面盖板201的作用的同时，还能进一步起到阻挡杂散光的作用。可选地，该泡棉层112可以通过胶带(tape)连接在遮光层180和侧面盖板201之间。
可选地，如图12和图13所示，该泡棉层112可以设置有贯通该泡棉层112的第四开窗1121。可选地，该第四开窗1121设置于光学组件120的上方，具体的，设置于微透镜阵列121的上方，以通过指纹光信号被光学组件120以及指纹传感器130接收。可选地，该第四开窗1121的面积不小于上述 遮光层180中第一开窗1801的面积。
进一步地，继续参见图13，指纹传感器130通过第一引线131连接至第一基板140，该第一引线设置于指纹传感器130的其中一边。上述支撑层190设置于第一引线131以及引线保护胶132的一侧，且上述遮光层180可直接覆盖于该引线保护胶132上方。
可选地，遮光层180中还可设置有第二开窗1802，其中，第一引线131和引线保护胶132顶部区域位于该第二开窗1802中。
需要说明的是，如图13所示，指纹传感器130的第一引线131与微透镜阵列121之间也设置有部分遮光层180，该部分遮光层180位于上述第一开窗1801和第三开窗1802之间。该部分遮光层180除了可以用于阻挡杂散光以外，还可以阻挡用于阻挡引线保护胶132蔓延至微透镜阵列121，防止影响微透镜阵列121的光会聚效果。
可以理解的是，图12和图13中所示的实施例中，光源160与光学组件120和指纹传感器130之间的泡棉112、遮光层180以及支撑层190可复用为上文图8和图9中的挡光结构170。
还可以理解的是，在图12和图13所示的实施例中，光源160的设置方式还可以采用上文图10或图11中任一种实施方式，光源160的相关设计可以参见上文相关描述，此处不再具体赘述。
上文图7至图13中所示的光学指纹检测模组在对应于图3所示的第一种安装方式。可以理解的是，若光学指纹检测模组以图4、图5或者图6中的安装方式设置于第一容置区域203，光学指纹检测装置100的具体相关方案可参见上文图7至图13中的相关描述，此处不再赘述。
作为示例，若光学指纹检测模组以图5中所示的第三种安装方式安装于第一容置区域203中，图14和图15分别示出了该情况下光学指纹检测装置100的另两种结构示意图，其中，图14所示的结构示意图可为沿图1中XZ轴所在平面的截面结构示意图，图15所示的结构示意图可为沿图1中YZ轴所在平面的截面结构示意图。
如图14和图15所示，第一基板140通过支撑层190、遮光层180以及泡棉112连接至侧面盖板201。在本申请实施例中，泡棉112应具有连接作用，例如，该泡棉112与遮光层180以及侧面盖板201的接触面上均设置有胶层，可以实现泡棉112与遮光层180以及侧面盖板201的稳定连接。或者， 在本申请实施例中，图14和图15中的泡棉112可替换为胶带，具有更为稳定的连接作用。
可以理解的是，除了泡棉112应具有连接作用以外，遮光层180以及支撑层190均应具有连接作用，换言之，在一些实施方式中，遮光层180、支撑层190以及泡棉112三者之间的连接面上均需设置有胶层，以实现三者的稳定连接。
还可以理解的是，本申请实施例中，上文图5中用于连接第一基板140和侧面盖板201的连接件205可包括该遮光层180、支撑层190以及泡棉112。
此外，在本申请实施例中，除了遮光层180、支撑层190以及泡棉112可复用为上述连接件205以外，还可以在此基础上再增加连接件，以提高连接的稳定性。
具体地，在本申请实施例中，侧面盖板201、光学组件120、指纹传感器130、第一基板140、光源160以及其它组件的具体方案可以参见上文相关描述，此处不再赘述。
以上结合附图详细描述了本申请的优选实施方式，但是，本申请并不限于上述实施方式中的具体细节，在本申请的技术构思范围内，可以对本申请的技术方案进行多种简单变型，这些简单变型均属于本申请的保护范围。
例如，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合，为了避免不必要的重复，本申请对各种可能的组合方式不再另行说明。
又例如，本申请的各种不同的实施方式之间也可以进行任意组合，只要其不违背本申请的思想，其同样应当视为本申请所公开的内容。
本申请实施例还提供了一种电子设备，该电子设备可以包括：
设置于电子设备侧面的侧面盖板和侧面结构件，其中，侧面结构件中形成第一容置区域；
上述任一申请实施例的光学指纹检测装置。
其中，侧面盖板和侧面结构件可为上述申请实施例中的侧面盖板201和侧面结构件202，第一容置区域可为上述申请实施例中的第一容置区域203，光学指纹检测装置可以上述任一申请实施例中的光学指纹检测装置100。
可选地，光学指纹检测装置100中包括光学指纹检测模组和光源160，光学指纹检测模组中的第一基板140可用于固定至第一容置区域203四周的 侧面结构件202，以使得光学组件120和指纹传感器130设置于第一容置区域203中。
可选地，第一容置区域203为通孔，电子设备还可以包括载板，载板设置于侧面盖板201的第二方向，该第二方向朝向电子设备的侧面的内侧；该载板用于支撑光学指纹检测模组，使得光学指纹检测模组中的至少部分位于通孔中。
具体地，光学指纹检测模组中的第一基板140用于固定至第一容置区域203处的载板，使得光学组件120、指纹传感器130和第一基板140中的部分设置于第一容置区域203中。该载板可为上述申请实施例中的载板204。
可选地，载板204可设置于第一容置区域203中，或者，载板204设置于第一容置区域203的第二方向。可选地，载板204为所述电子设备中的机械结构件或者电学结构件。
可选地，电子设备还可以包括连接件，用于将光学指纹检测模组连接至侧面盖板201，使得光学指纹检测模组的至少部分位于第一容置区域203中，该连接件可为上述申请实施例中的连接件205，其可包括胶层。
应理解，本申请实施例中的具体的例子只是为了帮助本领域技术人员更好地理解本申请实施例，而非限制本申请实施例的范围。
应理解，在本申请实施例和所附权利要求书中使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本申请实施例。例如，在本申请实施例和所附权利要求书中所使用的单数形式的“一种”、“上述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外 的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口、装置或单元的间接耦合或通信连接，也可以是电的，机械的或其它的形式连接。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本申请实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分，或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (22)

  1. 一种光学指纹检测装置，其特征在于，用于设置于电子设备的侧面，所述电子设备包括侧面盖板和侧面结构件，所述侧面结构件中形成有第一容置区域，所述侧面盖板设置于所述第一容置区域的第一方向，并覆盖所述第一容置区域，所述第一方向朝向所述电子设备的侧面的外侧；
    所述光学指纹检测装置包括：光源和光学指纹检测模组；
    其中，所述光源用于发射光信号至所述侧面盖板处的手指，所述光学指纹检测模组中的至少部分设置于所述第一容置区域中，所述光学指纹检测模组用于接收所述光信号经过所述手指反射或透射后形成的携带有所述手指的指纹信息的指纹光信号，所述指纹光信号用于检测所述手指的操作以使所述电子设备进行与所述手指的操作关联的处理。
  2. 根据权利要求1所述的光学指纹检测装置，其特征在于，所述指纹光信号用于检测所述手指触摸在所述侧面盖板处的不同位置，以使所述电子设备进行音量的调整；或者，
    所述指纹光信号用于检测所述手指在所述侧面盖板处的滑动，以使所述电子设备进行音量的调整。
  3. 根据权利要求1或2所述的光学指纹检测装置，其特征在于，所述指纹光信号用于检测所述手指在所述侧面盖板处的触摸时间，以使所述电子设备进行电源的开关操作。
  4. 根据权利要求1至3中任一项所述的光学指纹检测装置，其特征在于，所述第一容置区域为通孔，所述侧面盖板的第二方向设置有载板，所述第二方向朝向所述电子设备的侧面的内侧；
    所述光学指纹检测模组固定至所述载板，使得所述光学指纹检测模组中的至少部分位于所述通孔中。
  5. 根据权利要求1至4中任一项所述的光学指纹检测装置，其特征在于，所述第一容置区域为凹槽，所述光学指纹检测模组固定至所述凹槽的底面，使得所述光学指纹检测模组位于所述凹槽中。
  6. 根据权利要求1至4中任一项所述的光学指纹检测装置，其特征在于，所述第一容置区域为通孔或者凹槽，所述光学指纹检测模组通过连接件固定至所述侧面盖板，使得所述光学指纹检测模组的至少部分位于所述第一容置区域中。
  7. 根据权利要求1至6中任一项所述的光学指纹检测装置，其特征在于，所述光学指纹检测模组包括：
    光学组件，设置于所述侧面盖板的第二方向，所述第二方向朝向所述电子设备的侧面的内侧；
    指纹传感器，设置于所述光学组件的所述第二方向；
    第一基板，与所述指纹传感器电连接，并设置于所述指纹传感器的所述第二方向，以支撑所述指纹传感器和所述光学组件；
    其中，所述光学组件用于引导所述指纹光信号进入到所述指纹传感器中，以进行所述手指的操作的检测。
  8. 根据权利要求7所述的光学指纹检测装置，其特征在于，所述光学指纹检测模组包括一个所述光学组件和一个所述指纹传感器；
    所述光学组件沿所述电子设备的侧面的长边方向的长度大于所述光学组件沿所述电子设备的侧面的短边方向的长度；且，
    所述指纹传感器沿所述电子设备的侧面的长边方向的长度大于所述指纹传感器沿所述电子设备的侧面的短边方向的长度。
  9. 根据权利要求7所述的光学指纹检测装置，其特征在于，所述光学指纹检测模组包括多个所述光学组件和多个所述指纹传感器，多个所述光学组件与多个所述指纹传感器一一对应；
    多个所述光学组件和多个所述指纹传感器均沿所述电子设备的侧面的长边排列。
  10. 根据权利要求7至9中任一项所述的光学指纹检测装置，其特征在于，所述光源设置于所述第一容置区域中，并位于所述指纹传感器的四周。
  11. 根据权利要求10所述的光学指纹检测装置，其特征在于，所述光学指纹检测模组还包括：挡光结构，设置于所述光学组件和所述指纹传感器与所述光源之间。
  12. 根据权利要求7至9中任一项所述的光学指纹检测装置，其特征在于，所述侧面结构件中还形成有第二容置区域，所述光源设置于所述第二容置区域中；
    其中，所述第二容置区域与所述第一容置区域相邻设置，所述侧面盖板设置于所述第二容置区域的第一方向，并覆盖所述第二容置区域。
  13. 根据权利要求7至12中任一项所述的光学指纹检测装置，其特征 在于，所述光学组件包括：
    微透镜阵列；
    至少一光阑层，设置于所述微透镜阵列下方，所述至少一光阑层中每层光阑层中形成有多个通光小孔；
    所述微透镜阵列用于将所述指纹光信号汇聚至所述至少一光阑层的多个通光小孔中，所述指纹光信号通过所述多个通光小孔传输至所述指纹传感器以进行所述手指的操作的检测。
  14. 根据权利要求13所述的光学指纹检测装置，其特征在于，所述微透镜阵列中的每个微透镜对应于每层光阑层中的至少一个通光小孔，以及所述指纹传感器中的至少一个像素单元；
    所述指纹传感器用于接收至少一个方向的指纹光信号，以获取至少一张指纹图像以进行所述手指的操作的检测。
  15. 根据权利要求1至14中任一项所述的光学指纹检测装置，其特征在于，所述侧面盖板为弧面盖板，所述弧面盖板的弧面朝向所述电子设备侧面的外侧凸起。
  16. 根据权利要求1至15中任一项所述的光学指纹检测装置，其特征在于，所述侧面盖板中对应于所述第一容置区域的局部盖板的材料为透明材料，或者，所述局部盖板包括滤光材料，所述滤光材料用于通过目标波段的光信号，滤除非目标波段的光信号。
  17. 根据权利要求1至16中任一项所述的光学指纹检测装置，其特征在于，所述侧面盖板中对应于所述第一容置区域的局部盖板处设置有感压层，所述感压层用于感测所述手指触摸以产生指示信号，所述指示信号用于指示所述光学指纹检测装置是否工作。
  18. 根据权利要求1至17中任一项所述的光学指纹检测装置，其特征在于，所述第一容置区域处设置有指示模块，所述指示模块用于指示所述光学指纹检测模块的位置；或者，
    所述侧面盖板中对应于所述第一容置区域的局部盖板的颜色和/或图案与所述侧面盖板中的其它区域不同。
  19. 根据权利要求18所述的光学指纹检测装置，其特征在于，所述光源复用为所述指示模块。
  20. 一种电子设备，其特征在于，包括：
    侧面结构件，其中形成有第一容置区域；
    侧面盖板，设置于所述第一容置区域的第一方向，并覆盖所述第一容置区域，所述第一方向朝向所述电子设备的侧面的外侧；
    如上述权利要求1至19中任一项所述的光学指纹检测装置。
  21. 根据权利要求20所述的电子设备，其特征在于，所述第一容置区域为通孔，所述电子设备还包括：载板，所述载板设置于所述侧面盖板的第二方向，所述第二方向朝向所述电子设备的侧面的内侧；所述载板用于支撑所述光学指纹检测模组，使得所述光学指纹检测模组中的至少部分位于所述通孔中，所述载板为机械结构件或者电学结构件。
  22. 根据权利要求20所述的电子设备，其特征在于，所述电子设备还包括：连接件，用于将所述光学指纹检测模组连接至所述侧面盖板，使得所述光学指纹检测模组的至少部分位于所述第一容置区域中，所述连接件包括胶层。
PCT/CN2020/142596 2020-12-31 2020-12-31 光学指纹检测装置和电子设备 WO2022141605A1 (zh)

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