CN111708405A - Fingerprint identification subassembly and wearing equipment - Google Patents
Fingerprint identification subassembly and wearing equipment Download PDFInfo
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- CN111708405A CN111708405A CN202010577004.1A CN202010577004A CN111708405A CN 111708405 A CN111708405 A CN 111708405A CN 202010577004 A CN202010577004 A CN 202010577004A CN 111708405 A CN111708405 A CN 111708405A
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- fingerprint identification
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- infrared light
- identification module
- display screen
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/163—Wearable computers, e.g. on a belt
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- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G17/00—Structural details; Housings
- G04G17/02—Component assemblies
- G04G17/04—Mounting of electronic components
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- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G21/00—Input or output devices integrated in time-pieces
- G04G21/02—Detectors of external physical values, e.g. temperature
- G04G21/025—Detectors of external physical values, e.g. temperature for measuring physiological data
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
Abstract
The application discloses fingerprint identification subassembly and wearing equipment relates to intelligence wearing equipment technical field. Because the fingerprint identification module sets up and keeps away from the one side of treating the discernment finger in wearing equipment's display screen, and the fingerprint identification module is used for generating the fingerprint image that the finger of treating the discernment corresponds, consequently the setting position of fingerprint identification module can not contact the part of wearing in the wearing equipment for the setting position of fingerprint identification module can not influence the user and wear wearing equipment, has improved the travelling comfort that the user wore wearing equipment.
Description
Technical Field
The application relates to intelligence wearing equipment technical field especially relates to a fingerprint identification subassembly and wearing equipment.
Background
With the development of scientific technology, more and more wearable devices appear in the lives of people, and in order to increase the use safety of the wearable devices, fingerprint identification technology also appears in the wearable devices more and more, so that research and development work about fingerprint identification becomes one of the key points of research of people in the field.
In the correlation technique, the fingerprint identification module sets up generally in wearing the part of wearing equipment, wears the part and is connected with the host computer of wearing equipment, and then realizes the electric connection of fingerprint identification module and host computer. When fingerprint identification module on the part was worn in the user's touch, the host computer acquireed user's fingerprint information and carried out fingerprint identification through this fingerprint identification module.
However in above-mentioned correlation technique, place the fingerprint identification module and wear the part in, wear still need lay the electronic circuit in the part simultaneously, can strengthen the hardness of wearing the part to reduce the comfort level that the user wore wearing equipment.
Disclosure of Invention
The application provides a fingerprint identification subassembly and wearing equipment can solve above-mentioned correlation technique, and the fingerprint identification module sets up the technical problem that the position can reduce the comfort level that the user wore wearing equipment.
First aspect, this application provides a fingerprint identification module is applied to wearing equipment, wearing equipment includes the display screen at least, this the fingerprint identification module set up in keep away from the one side of waiting to discern the finger in the display screen, the fingerprint identification module is used for generating the fingerprint image that waits to discern the finger and correspond.
In a second aspect, the application provides a wearing device, wearing device includes display screen and installation shell, wearing device still includes foretell fingerprint identification module.
The beneficial effects brought by the technical scheme provided by some embodiments of the application at least comprise:
the application provides a fingerprint identification module, be applied to wearing equipment, wearing equipment includes the display screen at least, because the fingerprint identification module sets up and keeps away from the one side of waiting to discern the finger in the display screen, and the fingerprint identification module is used for generating the fingerprint image that waits to discern the finger and correspond, consequently the setting position of fingerprint identification module can not contact the wearing part in the wearing equipment, make the setting position of fingerprint identification module can not influence the user and wear wearing equipment, the travelling comfort that the user wore wearing equipment has been improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a fingerprint identification module according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a fingerprint identification module according to another embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of an infrared light supplement module according to another embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a lens module according to another embodiment of the present application;
FIG. 5 is a schematic view of another lens module according to another embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a light guide module according to another embodiment of the present disclosure.
Detailed Description
In order to make the features and advantages of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the related art, the wearable device generally includes a host and a wearing part, the host is used as a main device for implementing functions of the wearable device, the wearing part is a fixing device, and the host is mainly worn on the limb of the user. When being provided with the fingerprint identification module in wearing equipment, the fingerprint identification module generally is electric capacity fingerprint identification module, and the fingerprint identification module sets up in wearing the part of wearing equipment, wears the part and is connected with wearing equipment's host computer, and then realizes the electricity of fingerprint identification module and host computer and is connected. When fingerprint identification module on the part was worn in the user's touch, the host computer acquireed user's fingerprint information and carried out fingerprint identification through this fingerprint identification module.
However, in the above scheme, there are a plurality of technical defects, firstly, placing the capacitive fingerprint identification module on the wearing part, and arranging an electronic circuit in the wearing part can enhance the hardness of the wearing part, thereby affecting the wearing comfort of the user; secondly, the wearing part is reliably connected with the host machine, so that the design and process difficulty of the wearing part is further increased; thirdly, the fingerprint identification module is positioned on the wearing part, and the arm needs to be rotated during unlocking, so that the operation is inconvenient, and the user experience is poor; fourthly, the host and the wearing part are both provided with circuit devices, and the host and the wearing part are connected through interface terminals, which is not beneficial to water resistance; fifthly, the user changes and wears the part and need change the fingerprint identification module simultaneously, and the user also needs to buy the order for the fingerprint identification module promptly, and the replacement cost is high. Therefore, it is necessary to provide another fingerprint identification module and a wearable device based on the fingerprint identification module.
It can be understood that the fingerprint identification module that this application embodiment provided can be applied to various fingerprint identification occasions, does not restrict application and the concrete use scene of fingerprint identification module. For convenience of description, the fingerprint identification module is applied to the wearable device as an example.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a fingerprint identification module according to an embodiment of the present disclosure.
As shown in fig. 1, a fingerprint identification module 200 is applied to wearing equipment 100, and wearing equipment 100 includes display screen 120 at least, and fingerprint identification module 200 sets up and keeps away from the one side of waiting to discern the finger in the display screen, and fingerprint identification module 200 is used for generating the fingerprint image of waiting to discern the finger and corresponding. Because fingerprint identification module 200 sets up and keeps away from the one side of treating the discernment finger in display screen 120, consequently fingerprint identification module 200 set up the position and can not contact the part of wearing in the wearing equipment 100 for the setting position of fingerprint identification module 200 can not influence the user and wear wearing equipment, has improved the travelling comfort that the user wore wearing equipment 100.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a fingerprint identification module according to another embodiment of the present application.
As shown in fig. 2, a fingerprint identification module 200 is applied to a wearable device 100, the wearable device 100 at least includes a wearing component 110, a display screen 120, a main board 130 and an installation shell 140, the wearing component 110 is fixed on an outer wall of the installation shell 140, and the installation positions of the wearing component 110 and the installation shell 140 can be set according to the type of the wearable device 100 or according to the shape of the installation shell 140, for example, when the wearable device 100 is a wearable watch, in order to facilitate a user to wear the wearable watch, the wearing component 110 can be set on two sides of the outer wall of the installation shell 140. The material of the mounting case 140 may be set according to actual conditions, and the shape of the mounting case 140 may be set when the mounting case 140 is produced, so that the mounting case 140 has an accommodating space, and the shape and size of the accommodating space may be set according to the shape of the display screen 120 and/or the shape of the motherboard 130.
The main board 130 is disposed in the accommodating space, the display screen 120 is disposed in an accommodating opening of the accommodating space, the display screen 120 is electrically connected to the main board 130, and the main board 130 can serve as a processing center of the wearable device 100, for example, the main board 130 can send a display signal to the display screen 120, so that the display screen 120 displays a picture based on the display signal. Along with scientific and technological development and intelligent wearing equipment 100's popularization, with fingerprint identification module 200 integration in intelligent wrist-watch body, be favorable to promoting wearing equipment 100's security and product expressive force.
Further, fingerprint identification module 200 includes: an infrared fill-in module 210, a lens module 220, and an optical sensor 230.
Since the display screen 120 is one of the interaction bodies of the user and the wearable device 100 equipped with the display screen 120, wherein the display screen 120 plays a role in protecting the internal components of the wearable device 100, displaying the picture, and receiving the feedback of the user, after the display screen 120 is assembled in the wearable device 100, two sides of the display screen 120 can be divided into the display side of the display screen 120, that is, the side of the display screen 120 displaying the picture and receiving the feedback of the user, and the backlight side of the display screen 120, that is, the circuit side of the display screen 120 realizing imaging, according to the position of the display screen 120 after assembly, the display characteristics of the display screen 120, and the display principle.
The infrared light supplement modules 210 are uniformly disposed on the mounting case 140, and are configured to provide infrared light to the finger to be identified disposed on the display side of the display screen 120. Because optical sensor 230 that uses in this application embodiment utilizes the infrared light that waits to discern reflection on the finger to carry out work, consequently in order to improve the formation of image effect, can set up infrared light filling module 210 alone, make infrared light filling module 210 and mainboard 130 be connected, when needing fingerprint identification module 200 to carry out optics fingerprint identification, mainboard 130 can open infrared light filling module 210 earlier and send infrared ray, and set up the angle that infrared light filling module 210 sent infrared ray, so that the infrared light that infrared light filling module launched can pass display screen 120, and shine on waiting to discern the finger above the display screen 120.
In the related art, when the finger to be recognized is placed above the display screen 120 or the finger to be recognized touches the display screen 120, the light emitted after the display screen 120 is turned on may be further utilized to irradiate the finger to be recognized, the finger to be recognized reflects the light to the optical sensor 230, and the optical sensor 230 generates a fingerprint image according to the reflected light. However, there are some disadvantages that, on one hand, the display screen 120 needs to be turned on in advance before the fingerprint unlocking is performed, and the power consumption of the display screen 120 is large, which increases the power consumption of the wearable device 100; on the other hand, the light emitted from the display 120 may include a variety of frequencies and bands of light at a variety of angles, which may interfere with the clarity of the fingerprint image generated by the optical sensor 230.
In order to solve the problem, in the embodiment of the present application, the installation and setting manner of the infrared light supplement module 210 may be further set, that is, the infrared light supplement module 210 is uniformly arranged on the installation shell 140, so that the infrared light emitted by the infrared light supplement module 210 can uniformly irradiate the finger to be recognized above the display screen 120 after passing through the display screen 120, because the protruding degrees on the surface of the fingerprint at different positions on the finger to be recognized are different, the reflected infrared light corresponding to the fingerprint on the finger to be recognized can carry the fingerprint information of the user, and when the uniform infrared light is reflected by the finger to be recognized, the uniform reflected infrared light can be formed, so that the fingerprint image formed after the subsequent optical sensor 230 receives the reflected infrared light can be clearer, that is, the infrared light supplement module 210 is arranged by using the morphological characteristics of the wearable device 100, which is beneficial for supplementing light for the finger to be recognized in a non-directional manner, the fingerprint images of the finger to be identified in all directions can be equally clear, so that the success rate of fingerprint unlocking is improved.
Meanwhile, when the display screen 120 detects that the finger to be recognized touches the display screen 120, the mainboard 130 is informed to control to start the infrared light supplement module 210 again, and the power of the infrared light supplement module 210 is far less than that of the display screen 120, so that the fingerprint recognition module 200 adopts the light supplement scheme of the scheme, and the power consumption of the fingerprint recognition module 200 can be greatly reduced.
The lens module 220 is disposed on a side of the display screen 120 away from the finger to be recognized, and is configured to collect the reflected infrared light that is reflected by the finger to be recognized and passes through the display screen 120. The lens module 220 may be made of a transparent material with a predetermined refractive index, and the lens module 220 may include a plurality of lenses stacked or protrusions with a predetermined height and a predetermined diameter formed at different positions of the lens module 220 during processing, when the reflected infrared light on the finger to be recognized passes through the display screen 120 and irradiates the lens module 220, the reflected infrared light may be converged by the lenses in the lens module 220, and the reflected infrared light may be converged on a side of the lens module 220 away from the display screen 120.
Because lens module 220 can be with waiting to discern that the finger corresponds, carry user fingerprint information's reflection infrared light to assemble, consequently assemble the one side of reflection infrared light at lens module 220, compare in the one side behind the direct display screen 120 that passes of reflection infrared light, under the same area, can assemble the one side of reflection infrared light at lens module 220 and acquire more reflection infrared light, consequently also can acquire more user fingerprint information, be convenient for improve fingerprint identification speed and the fingerprint identification rate of accuracy based on fingerprint identification module 200.
The optical sensor 230 is disposed on a side of the lens module 220 away from the display screen 120, and the optical sensor 230 is electrically connected to the main board 130, and is configured to receive the reflected infrared light collected by the lens module 220 through a sensing surface of the optical sensor 230, and generate a fingerprint image of a finger to be identified based on the reflected infrared light. The optical sensor 230 may be a sensor having photosensitive pixels, wherein the photosensitive pixels may sense and collect reflected infrared light and form a fingerprint image corresponding to a finger to be recognized, and the main board 130 may recognize the identity of the user according to the fingerprint image.
Optionally, a filter may be disposed between the display screen 120 and the lens module 220 for filtering the reflected infrared light. It can be understood that, because the service environment of the wearable device 100 is complex, the reflected light corresponding to the finger fingerprint to be identified includes various objects, various environments and various colors of light, and therefore, after the reflected light passing through the display screen 120 is received by the optical sensor 230, the problem of slow processing time and low fingerprint identification efficiency exists when the optical sensor 230 processes the complex light, and therefore, an optical filter can be arranged in any optical path of the reflected light, and preset light in the reflected light is filtered out, so that the reflected light passing through the optical filter only retains one or more specified light.
Because the light supplementing device in the embodiment of the present application uses the infrared light supplementing module 210, the optical filter may be an infrared optical filter, and the infrared optical filter may filter out the preset light in the reflected light, so that the reflected light passing through the optical filter only retains the infrared light. Set up the light filter between display screen 120 and lens module 220, can reduce under the circumstances of disturbing to the reverberation, predetermine light in the reverberation and filter, the interference when the light that can further reduce all the other colours discerns the fingerprint to optical sensor 230 like this is favorable to improving fingerprint identification module 200 to the fingerprint information's that carries in the reverberation recognition rate and discernment rate of accuracy.
In the embodiment of the application, a fingerprint identification module is applied to wearing equipment, and wearing equipment wears the part including wearing part, display screen, mainboard and installation shell at least and fixes the outer wall at the installation shell, and the installation shell has accommodating space, and the mainboard sets up in accommodating space, and the display screen sets up in accommodating port of accommodating space, and the display screen is connected with the mainboard electricity, and the fingerprint identification module includes: the infrared light supplementing modules are uniformly arranged on the mounting shell and used for providing infrared light for the finger to be identified, which is arranged on the display side of the display screen; the lens module is arranged on one side of the display screen, which is far away from the finger to be identified, and is used for gathering reflected infrared light which is reflected by the finger to be identified and passes through the display screen; the optical sensor is arranged on one side, far away from the display screen, of the lens module, is electrically connected with the main board and is used for receiving reflected infrared light converged by the lens module through a sensing surface of the optical sensor and generating a fingerprint image of a finger to be identified based on the reflected infrared light. Because the fingerprint identification module sets up in wearing equipment's display screen below, the user only need will treat the discernment finger and place in the display screen top, can realize the infrared light filling of infrared light filling module to and optical sensor produces the fingerprint image, can realize wearing equipment's fingerprint unblock, can effectively improve the convenience of fingerprint unblock.
Referring to fig. 3, fig. 3 is a schematic structural diagram of an infrared light supplement module according to another embodiment of the present disclosure.
As shown in fig. 3, in order to realize that infrared light filling module 210 evenly sets up on installation shell 140, so that the infrared light that infrared light filling module 210 sent can shine the finger of waiting to discern above the display screen 120 evenly after passing display screen 120, be favorable to having no direction difference to carry out the light filling for waiting to discern the finger, let wait to discern on the finger that fingerprint image can both be equal clear in each direction, thereby be favorable to promoting fingerprint unblock success rate, can set up infrared light filling module 210 and include a plurality of infrared light filling lamps 211, a plurality of infrared light filling 211 lamp evenly distributed set up on installation shell 140's inner wall, wherein the quantity of infrared light filling lamp 211 can be set for according to actual conditions, for example, infrared light filling module 210 can include four infrared light filling lamps 211, four infrared light filling lamps 211 set up respectively in four different directions.
Wherein, in the specific installation of a plurality of infrared light filling lamps 211 of infrared light filling module 210, can adjust the specific angle of every infrared light filling lamp 2111 according to optical sensor 230's mounted position to make the total area that the infrared light that a plurality of infrared light filling lamps 211 sent shines on display screen 120 not less than the area of optical sensor 230's sensing surface, can make the increase user carry out the space range of unblock through waiting to discern the finger like this.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a lens module according to another embodiment of the present application.
As shown in fig. 4, the lens module 220 includes a plurality of lenses 221 sequentially stacked. Each lens is a lens with light converging capability, the number of the lenses and specific optical parameters of each lens can be set according to the optical performance of the optical sensor 230 and the shape of the wearable device 100, and the thickness of the wearable device 100 can be ensured to be thin while the optical receiving capability of the optical sensor 230 is realized. Lens module 220 includes single lens for lens module 220 through the superposition of the light ability that converges of a plurality of lenses, can improve the ability of converging of lens module 220's reflection infrared light greatly, just also can assemble the one side of reflection infrared light at lens module 220 and acquire more reflection infrared light, consequently also can acquire more user's fingerprint information, be convenient for improve fingerprint identification speed and the fingerprint identification rate of accuracy based on fingerprint identification module 200.
Referring to fig. 5, fig. 5 is a schematic view of another structure of a lens module according to another embodiment of the present application.
As shown in fig. 5, the lens module 220 is a single structure, and includes a first surface 222 and a second surface 223 opposite to the first surface, the first surface 222 is formed with a plurality of convex surfaces 2221, and the second surface 223 is a plane.
In the production process, the shape of the second surface 223 of the first surface 222 in the lens module 220 may be set so that the first surface 222 is formed with a plurality of convex surfaces 2221, one convex surface 2221 and a lens formed by the material inside the convex surface 2221, and in the production process of the lens module 220, the length, width or diameter of the protrusion of the first surface 222 may be limited so that the lens formed by the convex surfaces 2221 is a microlens, and the second surface 223 may be a plane so that the microlens in the lens module 220 is a plano-convex lens.
When the reflected infrared light irradiates the convex surface 2221 of the lens module 220, the lens module 220 may focus the reflected infrared light on a plane opposite to the convex surface 2221, i.e., the focused reflected infrared light may be more uniformly distributed on the second surface 223. When the reflected infrared light is irradiated onto the optical sensor 230, the lens module 220 in the embodiment of the present application may greatly improve the convergence capability of the reflected infrared light of the lens module 220, and the photosensitive pixels on the optical sensor 230 may more easily receive the reflected infrared light focused in the lens module 220, compared with the case where the lens module 220 includes a single lens.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a light guide module according to another embodiment of the present application.
As shown in fig. 6, based on the lens module 220 in fig. 5, a light guide module 240 is further disposed between the lens module 220 and the optical sensor 230, and the light guide module 240 is used for conducting the reflected infrared light passing through the lens module 220 in parallel.
The light guide module 240 may be disposed on a side of the lens module 220 away from the display screen 120, that is, the light guide module 240 is disposed on a side of the lens module 220 where the reflected infrared light is converged, so that the light guide module 240 may be configured to receive and conduct the reflected infrared light passing through the lens module 220 in parallel, that is, one end of the light guide module 240 first receives the reflected infrared light passing through and converged by the lens module 220, and then conducts the converged reflected infrared light to the other end of the light guide module 240 in parallel.
The light guide module 240 may be any device capable of guiding light and outputting the light at a predetermined angle, and the light guide module 240 includes a plurality of light pipes 241, and the plurality of light pipes 241 extend in a direction perpendicular to the second surface. For example, the light guide 241 may use an optical fiber inner diameter tube, so that after receiving the reflected infrared light, one end of the optical fiber inner diameter tube may transmit the reflected infrared light with less loss in the optical fiber inner diameter tube, and the optical fiber inner diameter tube may also be in a bent or perpendicular state, and the reflected infrared light may be output in a direction parallel to the inner wall of the optical fiber inner diameter tube at the other end of the optical fiber inner diameter tube.
One end of the light guide module 240 close to the lens module 220 can be tightly attached to one side of the lens module 220, which converges the reflected infrared light with the lens module 220, due to the parallel conduction characteristic of the light guide module 240, after one end of the light guide module 240 receives the reflected infrared light converged to one side of the lens module 220, the light guide module 240 can conduct the reflected infrared light to the other end of the light guide module 240 in parallel with the same intensity, that is, the intensity of the reflected infrared light in unit area at two ends of the light guide module 240 is the same, the light guide module 240 is equivalent to converging one end of the lens module 220 to reflect the infrared light, and the reflected infrared light is output after extending for a certain length, thereby replacing the process that one end of the lens module.
Optionally, the optical sensor 230 is disposed on a side of the light guide module 240 away from the lens module 220, a surface of the optical sensor 230 facing the light guide module 240 is provided with a plurality of light sensing pixels 231, a projection of each light sensing pixel 231 on the light guide module 240 may cover at least two light guide pipes 241, where the light sensing pixels 231 may sense light and form related data, and the light sensing pixels 231 of the optical sensor 230 may face the light guide module 240, so that reflected infrared light guided by the light guide module 240 is received by the light sensing pixels 231 of the optical sensor 230.
Because the intensity of the reflected infrared light at the unit area of the two ends of the light guide module 240 is the same, after the light sensing pixels 231 of the optical sensor 230 receive the reflected infrared light guided out by the light guide module 240, the reflected infrared light is sensed and collected to obtain original light data, the optical sensor 230 identifies the original light data to obtain user fingerprint information corresponding to the reflected infrared light, and the main board 130 can identify the identity of the user according to the fingerprint information.
In the related art, since a light transmission space or a light transmission medium exists between the lens module 220 and the optical sensor 230, reflected infrared light focused by the lens in the lens module 220 is focused again in the light transmission space or the light transmission medium, so that the area of the focused light irradiated on the optical sensor 230 is small, and only the photosensitive pixel 231 in the optical sensor 230 can collect and receive the reflected infrared light, so that the position of the lens in the lens module 220 and the position of the photosensitive pixel 231 in the optical sensor 230 need to be in one-to-one correspondence to each other to irradiate the reflected infrared light to be focused on the photosensitive pixel 231 of the optical sensor 230. In the present application, the reflected infrared light focused by the micro lens in the lens module 220 can be directly and parallelly transmitted to the optical sensor 230 through the light guide module 240, and the intensities of the reflected infrared light in the unit areas of the two ends of the light guide module 240 are the same, so that the reflected infrared light parallelly guided by the light guide module 240 irradiates the optical sensor 230, which is equivalent to the reflected infrared light focused by the micro lens directly irradiating the optical sensor 230, thereby avoiding the process of focusing the reflected infrared light before reaching the optical sensor 230 in the related art, increasing the irradiation area of the reflected infrared light focused by the micro lens by the light guide module 240, and the reflected infrared light parallelly guided by the light guide module 240 is more easily received by the photosensitive pixel 231 on the optical sensor 230, and there is no need to make the positions of the micro lens in the lens module 220 correspond to the positions of the photosensitive pixels 231 in the optical sensor 230 one, the micro lenses in the lens module 220 may be arranged according to the requirement, and may be arranged regularly or randomly. And can change the lens module 220 of different microlens specifications at any time for the technological requirement when producing fingerprint identification module 200 is lower, has effectively reduced fingerprint identification module 200's manufacturing cost.
Optionally, the Display screen 120 in this embodiment of the application is an Organic Light-Emitting Diode (OLED) Display screen 120 or a Liquid Crystal Display (LCD), wherein when the Display screen 120 is the OLED Display screen 120, since a gap is disposed between each pixel of the OLED Display screen 120, only one end surface of the OLED Display screen 120 away from the finger to be recognized needs to be provided with a Light-transmitting window, that is, the P/S film layer and the foam at the bottom of the OLED Display screen 120 are perforated to form the Light-transmitting opening, an area of the Light-transmitting window is larger than an area of the sensing surface of the optical sensor 230, so that the reflected infrared Light is irradiated onto the sensing surface of the optical sensor 230 through the Light-transmitting window; when the display screen 120 is an LCD, the backlight module of the LCD needs to be structurally configured, so that the backlight module of the LCD has a plurality of light-transmitting holes, and reflected infrared light reflected by a finger to be identified can pass through the LCD, so that the reflected infrared light can irradiate onto the sensing surface of the optical sensor 230 through the light-transmitting holes.
In the embodiment of the present application, a wearable device 100 is further provided, the wearable device 100 includes a wearing component 110, a display screen 120, a motherboard 130 and an installation shell 140, the wearing component 110 is fixed on an outer wall of the installation shell 140, the installation shell 140 has an accommodation space, the motherboard 130 is disposed in the accommodation space, the display screen 120 is disposed in an accommodation port of the accommodation space, the display screen 120 is electrically connected with the motherboard 130, and the wearable device 100 further includes the fingerprint identification module 200 in the above embodiment. For a detailed description of the wearable device 100, please refer to the detailed description in the above embodiments, which is not repeated herein.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of modules is merely a division of logical functions, and an actual implementation may have another division, for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
Modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present application may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In view of the above description of the fingerprint identification module and the wearable device provided by the present application, those skilled in the art will recognize that changes may be made in the embodiments and applications of the present application, and in summary, the disclosure of the present application should not be interpreted as limiting the application.
Claims (10)
1. The utility model provides a fingerprint identification module, is applied to wearing equipment, wearing equipment includes the display screen at least, its characterized in that, the fingerprint identification module set up in keep away from the one side of waiting to discern the finger in the display screen, the fingerprint identification module is used for generating the fingerprint image that the finger of waiting to discern corresponds.
2. The fingerprint identification module of claim 1, wherein the fingerprint identification module comprises an infrared fill-in module configured to provide infrared light to a finger to be identified disposed on a display side of the display screen.
3. The fingerprint identification module of claim 2, further comprising a lens module, wherein the lens module is configured to converge the reflected infrared light emitted by the infrared light supplement module, reflected by the finger to be identified, and transmitted through the display screen.
4. The fingerprint identification module of claim 3, further comprising an optical sensor disposed on a side of the lens module away from the display screen;
the optical sensor is used for receiving the reflected infrared light converged by the lens module through a sensing surface of the optical sensor and generating a fingerprint image of the finger to be identified based on the reflected infrared light.
5. The fingerprint identification module of claim 4, wherein the wearable device further comprises an installation shell, and the infrared light supplement module comprises a plurality of infrared light supplement lamps;
a plurality of infrared light filling lamps evenly distributed set up in on the inner wall of installation shell, the infrared light that a plurality of infrared light filling lamps sent shines total area on the display screen is not less than optical sensor's the area of response face.
6. The fingerprint identification module of claim 4, wherein the lens module comprises a plurality of lenses stacked in sequence.
7. The fingerprint identification module of claim 4, wherein the lens module comprises a first surface and a second surface opposite the first surface;
the first surface is provided with a plurality of convex surfaces which are arranged convexly, and the second surface is a plane.
8. The fingerprint identification module of claim 7, wherein a light guide module is further disposed between the lens module and the optical sensor, and the light guide module is configured to conduct the reflected infrared light passing through the lens module in parallel.
9. The fingerprint identification module of claim 8, wherein the light guide module comprises a plurality of light guides extending in a direction perpendicular to the second surface.
10. The wearable device is characterized by comprising a display screen and an installation shell, and further comprising the fingerprint identification module of any one of claims 1 to 9.
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| CN202010577004.1A CN111708405A (en) | 2020-06-22 | 2020-06-22 | Fingerprint identification subassembly and wearing equipment |
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| CN202010577004.1A CN111708405A (en) | 2020-06-22 | 2020-06-22 | Fingerprint identification subassembly and wearing equipment |
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| CN202010577004.1A Pending CN111708405A (en) | 2020-06-22 | 2020-06-22 | Fingerprint identification subassembly and wearing equipment |
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| CN115153169A (en) * | 2022-06-28 | 2022-10-11 | 武汉华星光电半导体显示技术有限公司 | Wearable display device |
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Application publication date: 20200925 |