CN106295606B - Fingerprint identification subassembly, fingerprint identification module and mobile terminal - Google Patents

Abstract

The invention provides a fingerprint identification assembly, a fingerprint identification module and a mobile terminal, wherein the fingerprint identification assembly comprises a wafer and a substrate, the wafer is arranged on the substrate and electrically connected with the substrate through a metal wire, at least one light-emitting device is further arranged on the substrate and electrically connected with the substrate, and the wafer and the light-emitting device are packaged into a whole through a packaging layer. Therefore, the light-emitting device is added in the fingerprint identification assembly, so that the fingerprint identification module has a light-emitting function, and the aim of quickly finding the mobile terminal when the mobile terminal is in a dark environment is fulfilled.

Description

A fingerprint identification component, fingerprint identification module and mobile terminal

technical field

The present invention relates to the field of communication technologies, and in particular, to a fingerprint identification component, a fingerprint identification module and a mobile terminal.

Background technique

With the rapid development of mobile terminal technology, the market penetration rate of mobile terminals is getting higher and higher. Nowadays, with the increase and continuous improvement of the functions of mobile terminals, users are increasingly dependent on them. With the accelerated pace of people's lives, more and more users need to use mobile terminals in the middle of the night. However, in a dark and unlit environment, there is often a problem that the mobile terminal cannot be quickly found; or, when the light is turned on, if the mobile terminal is placed in a corner that is not suitable for discovery, the user also needs to spend more time searching for the mobile terminal. It can be seen that there is currently a problem that the mobile terminal cannot be quickly found in a dark environment.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a fingerprint identification component, a fingerprint identification module and a mobile terminal, so as to solve the problem that the mobile terminal cannot be quickly found in a dark environment.

In a first aspect, an embodiment of the present invention provides a fingerprint identification component, including a wafer and a substrate, the wafer is disposed on the substrate, the wafer is electrically connected to the substrate through a metal wire, and the wafer is electrically connected to the substrate through a metal wire. The substrate is further provided with at least one light-emitting device, the light-emitting device is electrically connected to the substrate, and the die and the light-emitting device are packaged into a whole through an encapsulation layer.

In a second aspect, an embodiment of the present invention provides a fingerprint identification module, including a printed circuit board, a cover plate and the above fingerprint identification component, the fingerprint identification component is disposed on the printed circuit board, and the cover plate covers the On the fingerprint identification component, the cover plate area corresponding to the light emitting device is a transparent or semi-transparent area.

In a third aspect, an embodiment of the present invention provides a mobile terminal, including the above fingerprint identification module.

In this way, in this embodiment of the present invention, a light-emitting device is added inside the fingerprint identification component or the fingerprint identification module, so that the fingerprint identification component or the fingerprint identification module has the function of emitting light, so as to quickly find the mobile terminal when the mobile terminal is in a dark environment. the purpose of the terminal.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

1 is a structural diagram of a fingerprint identification component provided by an embodiment of the present invention;

2 is a top view of a fingerprint identification assembly provided by an embodiment of the present invention;

3 is a structural diagram of a fingerprint identification module provided by an auxiliary embodiment of the present invention;

4 is a top view of a fingerprint identification module provided by an auxiliary embodiment of the present invention;

5 is a structural diagram of a fingerprint identification module provided by a third embodiment of the present invention;

6 is a structural diagram of a fingerprint identification module provided by a fourth embodiment of the present invention;

7 is a top view of a fingerprint identification module provided by a fourth embodiment of the present invention;

FIG. 8 is a structural diagram of a mobile terminal according to a fifth embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

first embodiment

Referring to FIG. 1-2, FIG. 1-2 is a schematic structural diagram of a fingerprint identification component provided by an embodiment of the present invention. As shown in FIG. 1 , the fingerprint identification assembly 10 includes a wafer 11 and a substrate 12 . The wafer 11 is disposed on the substrate 12 , and the wafer 11 is electrically connected to the substrate 12 through a metal wire 13 . The substrate 12 is further provided with at least A light-emitting device 15 , the light-emitting device 15 is electrically connected to the substrate 12 , and the wafer 11 and the light-emitting device 15 are encapsulated into a whole by the encapsulation layer 14 .

Optionally, the encapsulation layer 14 is a transparent material or a light guide material. For example, it may be a transparent EMC (epoxy) encapsulation material. The encapsulation layer 14 is selected from a transparent material or a light-guiding material, so that the light of the light emitting device 15 in the fingerprint identification assembly 10 can pass through the encapsulation layer 14 as much as possible, thereby improving the luminous effect of the fingerprint identification assembly 10 .

Optionally, the light emitting device 15 is mounted on the substrate 12 . Here, the light emitting device 15 may be mounted on the substrate 12 by surface mount technology.

Optionally, as shown in FIG. 2 , four light-emitting devices 15 are symmetrically arranged around the wafer 11 . The four light-emitting devices 15 are symmetrically arranged around the wafer 11 , which can improve the luminous brightness of the fingerprint identification assembly 10 and make the light distribution of the entire fingerprint identification assembly 10 more uniform.

Optionally, the light emitting device 15 is an LED lamp. Here, the light-emitting device 15 may also be a light-emitting device other than an LED lamp, which may be selected according to the specific design scheme or lighting requirements of the fingerprint identification assembly 10 .

Optionally, the four light emitting devices are connected in series with each other. Here, the light-emitting devices 15 can also be connected in parallel or in a combination of series and parallel, and can be selected according to the specific design scheme or lighting requirements of the fingerprint identification component 10 .

The fingerprint identification assembly according to the embodiment of the present invention includes a wafer and a substrate, the wafer is disposed on the substrate, the wafer is electrically connected to the substrate through a metal wire, and at least A light-emitting device, the light-emitting device is electrically connected with the substrate, and the wafer and the light-emitting device are packaged into a whole through an encapsulation layer. In this way, in the embodiment of the present invention, a light-emitting device is added inside the fingerprint identification component, so that the fingerprint identification component has a light-emitting function, so as to achieve the purpose of quickly finding the mobile terminal when the mobile terminal is in a dark environment.

Second Embodiment

Referring to FIG. 3-4, FIG. 3-4 is a schematic structural diagram of a fingerprint identification module provided by an embodiment of the present invention. As shown in FIG. 3 , the fingerprint identification module 30 includes a printed circuit board 32 , a cover 31 and the fingerprint identification assembly 10 shown in FIG. 1 . The fingerprint identification assembly 10 is disposed on the printed circuit board 32 , and the fingerprint identification assembly 10 is covered above. The cover plate 31, the area of the cover plate 31 corresponding to the light emitting device 15 is a transparent or semi-transparent area.

Wherein, the fingerprint identification assembly 10 here is the fingerprint identification assembly shown in FIG. 1 , that is to say, it has a light-emitting device 15 inside; Connection; the fingerprint identification component 10 and the cover plate 31 can be pasted by transparent or translucent optical glue; the cover plate 31 can be made of transparent materials such as glass to ensure that the light can pass through as much as possible.

In addition, in order to make the color of the fingerprint identification module 30 and the mobile terminal consistent, several layers of silk screen printing ink can be covered on the contact surface of the cover plate 31 of the fingerprint identification module and the fingerprint identification assembly 10. The silk screen printing ink is generally opaque. Therefore, the area of the cover plate 31 corresponding to the light-emitting device 15 may not be printed or printed with less screen printing ink or only white or gray ink may be printed. It can be understood that the area of the cover plate 31 corresponding to the light-emitting device 15 is a transparent or translucent area, To ensure that light can penetrate the cover plate 31 .

In this way, the light emitted by the light emitting device 15 can penetrate the encapsulation layer, the optical adhesive layer, the silk screen ink layer and the cover plate 31 in sequence, so that the light emitting function of the fingerprint identification module 30 can be realized.

Optionally, as shown in FIGS. 3-4 , a decorative ring 33 is disposed around the fingerprint identification assembly 10 . Here, the decorative ring 33 can be a metal decorative ring, and the decorative ring 33 can better fix the fingerprint identification assembly 10 and can improve the integrity of the fingerprint identification module 30 .

The fingerprint identification module of the embodiment of the present invention includes a printed circuit board, a cover plate, and the fingerprint identification assembly described in the embodiment, the fingerprint identification assembly is disposed on the printed circuit board, and the fingerprint identification assembly covers the A cover plate, the area of the cover plate corresponding to the light emitting device is a transparent or translucent area. In this way, in the embodiment of the present invention, a light-emitting device is added in the fingerprint identification component of the fingerprint identification module, so that the fingerprint identification module has the function of light-emitting, so as to realize the purpose of quickly finding the mobile terminal when the mobile terminal is in a dark environment.

Third Embodiment

Referring to FIG. 5, FIG. 5 is a schematic structural diagram of a fingerprint identification module provided by an embodiment of the present invention. As shown in FIG. 5 , the fingerprint identification module 50 includes a printed circuit board 52 , a cover plate 51 and the fingerprint identification assembly 10 shown in FIG. 1 . The fingerprint identification assembly 10 is disposed on the printed circuit board 52 , and the upper part of the fingerprint identification assembly 10 is covered The cover plate 51, the area of the cover plate 51 corresponding to the light-emitting device 15 is a transparent or translucent area, a decorative ring 53 is arranged around the fingerprint identification assembly 10, and an accommodation space is left between the decorative ring 53 and the fingerprint identification assembly 10, and the There is at least one auxiliary light-emitting device 54 in the space, the auxiliary light-emitting device 54 is electrically connected to the printed circuit board 52 , and the accommodating space is filled with a transparent filler 55 .

The fingerprint identification assembly 10 here is the fingerprint identification assembly shown in FIG. 1 , that is to say, it has a light-emitting device 15 inside; the fingerprint identification assembly 10 can be mounted on the printed circuit board 52 by surface mount technology and electrically The fingerprint identification component 10 and the cover plate 51 can be bonded by transparent or translucent optical glue; the cover plate 51 can be made of transparent materials such as glass to ensure that the light can pass through as much as possible.

The decorative ring 53 can be a metal decorative ring, and the accommodating space between the decorative ring 53 and the fingerprint recognition assembly 10 is filled with a transparent filler 55, and the accommodating space between the decorative ring 53 and the fingerprint recognition assembly 10 can be larger than 0.3mm, the transparent filler 55 can be made of transparent glue to ensure that the light source can pass through, and at the same time, the fingerprint recognition assembly 10 and the decorative ring 53 can be fixed, so that the fingerprint recognition module 50 is more stable, and it can also solve the problem of water entering the bottom of the fingerprint recognition assembly 10. Play a waterproof effect.

The light-emitting principle of the light-emitting device 15 is the same as that of the embodiment of the invention shown in FIG. 3 , and details are not described herein again. The light emitted by the auxiliary light-emitting device 54 can pass through the transparent filler 55, and together with the light-emitting device 15, realize the light-emitting function of the fingerprint identification module 50, and on the basis of the embodiment of the invention shown in FIG. 3, the fingerprint identification module 50 is further improved. luminous brightness and luminous area.

Optionally, as shown in FIG. 5 , the accommodating space includes a first accommodating part and a second accommodating part, and the auxiliary light-emitting device 54 is placed in the second accommodating part, wherein the first accommodating part and the fingerprint identification assembly 10 Adjacent, the second accommodating portion is located below the inner side of the decorative ring 53 . In this way, the overall space of the fingerprint identification module 50 can be reduced, and the space compactness of the fingerprint identification module 50 can be improved.

Optionally, four auxiliary light-emitting devices 54 are symmetrically arranged around the fingerprint identification assembly 10 . The auxiliary light-emitting devices 54 are symmetrically arranged around the fingerprint identification assembly 10 , which can improve the luminous brightness of the fingerprint identification module 50 and make the light distribution of the entire fingerprint identification module 50 more uniform.

Optionally, the auxiliary lighting device 54 is an LED lamp. Here, the auxiliary light-emitting device 54 may also be a light-emitting device other than an LED, which may be selected according to the specific design scheme or lighting requirements of the fingerprint identification module 50 .

The fingerprint identification module of the embodiment of the present invention includes a printed circuit board, a cover plate and the fingerprint identification component of the embodiment, the fingerprint identification component is disposed on the printed circuit board, and the cover plate covers the fingerprint On the identification assembly, the cover plate area corresponding to the light-emitting device is a transparent or translucent area, a decorative ring is arranged around the fingerprint identification assembly, and a space is left between the decorative ring and the fingerprint identification assembly The accommodating space is provided with at least one auxiliary light-emitting device, the auxiliary light-emitting device is electrically connected to the printed circuit board, and the accommodating space is filled with transparent fillers. In this way, in the embodiment of the present invention, a light-emitting device is added inside the fingerprint identification assembly of the fingerprint identification module, and an auxiliary light-emitting device is added outside the fingerprint identification assembly, so that the fingerprint identification module has a light-emitting function, so as to realize the mobile terminal in the dark The purpose of quickly finding the mobile terminal in the environment.

Fourth Embodiment

Referring to FIG. 6-7, FIG. 6-7 is a schematic structural diagram of a fingerprint identification module provided by an embodiment of the present invention. As shown in FIG. 6 , the fingerprint identification module 60 includes a printed circuit board 62 , a cover plate 61 and a fingerprint identification chip 66 . The fingerprint identification chip 66 is arranged on the printed circuit board 62 , and the fingerprint identification chip 66 covers the cover plate 61 . A decorative ring 63 is arranged around the identification chip 66, and an accommodation space is left between the decorative ring 63 and the fingerprint identification chip 66. The accommodation space has at least one light-emitting device 64, and the light-emitting device 64 is electrically connected to the printed circuit board 62 to accommodate the The storage space is filled with a transparent filler 65 .

Among them, the fingerprint identification chip 66 can be mounted on the printed circuit board 62 by surface mount technology and electrically connected; the fingerprint identification chip 66 and the cover plate 61 can be pasted by transparent or translucent optical glue; the cover The plate 61 can be made of transparent materials such as glass, so as to ensure that the light can pass through as much as possible.

The decorative ring 63 can be a metal decorative ring, and the accommodating space between the decorative ring 63 and the fingerprint identification chip 66 is filled with a transparent filler 65, and the accommodating space between the decorative ring 63 and the fingerprint identification chip 66 can be larger than 0.3mm, the transparent filler 65 can use transparent glue to ensure that the light source can pass through, and at the same time, the fingerprint identification chip 66 and the decorative ring 63 can be fixed, so that the fingerprint identification module 60 is more stable, and it can also solve the problem of water entering the bottom of the fingerprint identification chip 66. Play a waterproof effect.

The light emitted by the light-emitting device 64 can pass through the transparent filler 65 to realize the light-emitting function of the fingerprint identification module 60 .

Optionally, the accommodating space includes a first accommodating part and a second accommodating part, the light-emitting device 34 is placed in the second accommodating part, wherein the first accommodating part is adjacent to the fingerprint identification chip 66, and the second accommodating part is The part is located below the inner side of the decorative ring 63 . In this way, the overall space of the fingerprint identification module 60 can be reduced, and the space compactness of the fingerprint identification module 60 can be improved.

Optionally, as shown in FIG. 7 , four light-emitting devices 64 are symmetrically arranged around the fingerprint identification chip 66 , which can improve the brightness of the fingerprint identification module 60 and make the light distribution of the entire fingerprint identification module 60 more uniform.

Optionally, the light emitting device 64 is an LED. Here, the light-emitting device 64 may also be a light-emitting device other than an LED, which may be selected according to the specific design scheme or lighting requirements of the fingerprint identification module 50 .

The fingerprint identification module of the embodiment of the present invention includes a printed circuit board, a cover plate and a fingerprint identification chip, the fingerprint identification chip is arranged on the printed circuit board, and the cover plate is covered above the fingerprint identification chip. A decorative ring is arranged around the fingerprint identification chip, and an accommodating space is left between the decorative ring and the fingerprint identification chip. The accommodating space has at least one light-emitting device, and the light-emitting device is electrically connected to the printed circuit board. The accommodating space is filled with transparent fillers. In this way, in the embodiment of the present invention, a light-emitting device is added inside the fingerprint identification module, so that the fingerprint identification module has a light-emitting function, so as to realize the purpose of quickly finding the mobile terminal when the mobile terminal is in a dark environment.

The embodiment of the present invention also relates to a mobile terminal, including the fingerprint identification module as described in the second embodiment, the third embodiment or the fourth embodiment. When the mobile terminal receives an incoming call, information or other communication messages, it can be reminded by the light of the fingerprint identification module.

Fifth Embodiment

Please refer to FIG. 8 , which is a schematic structural diagram of a mobile terminal provided by an embodiment of the present invention. Specifically, the mobile terminal 800 in FIG. 8 may be a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), an e-book reader, an MP3 (Moving Picture Experts Group Audio Layer III) ) players, MP4 (Moving PictureExperts Group Audio Layer IV) players, laptops, car computers, desktop computers, set-top boxes, smart TVs, wearable devices, etc.

As shown in FIG. 8 , the mobile terminal 800 includes a radio frequency (RF) circuit 810 , a memory 820 , an input unit 830 , a display unit 840 , a processor 850 , an audio circuit 860 , a communication module 870 , a power supply 880 and a fingerprint identification module 890 .

Wherein, the input unit 830 can be used to receive numerical or character information input by the user, and generate signal input related to user setting and function control of the mobile terminal 800 . Specifically, in this embodiment of the present invention, the input unit 830 may include a touch panel 831 . The touch panel 831, also known as a touch screen, can collect the user's touch operations on or near it (such as the user's operations on the touch panel 831 using any suitable objects or accessories such as a finger, a stylus, etc.) The specified program drives the corresponding connection device. Optionally, the touch panel 831 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the touch controller. To the processor 850, and can receive commands sent by the processor 850 and execute them. In addition, the touch panel 831 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 831, the input unit 830 may also include other input devices 832, and the other input devices 832 may include but are not limited to physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, joysticks, etc. one or more of.

The display unit 840 may be used to display information input by the user or information provided to the user and various menu interfaces of the mobile terminal 800 . The display unit 840 may include a display panel 841, and optionally, the display panel 841 may be configured in the form of an LCD or an organic light-emitting diode (Organic Light-Emitting Diode, OLED).

It should be noted that the touch panel 831 can cover the display panel 841 to form a touch display screen. When the touch display screen detects a touch operation on or near it, it is transmitted to the processor 850 to determine the type of the touch event, and then the processor The 850 provides corresponding visual output on the touch display depending on the type of touch event.

The touch screen includes the application program interface display area and the commonly used controls display area. The arrangement of the application program interface display area and the common control display area is not limited, and may be an arrangement that can distinguish the two display areas, such as up-down arrangement, left-right arrangement, or the like. The application program interface display area can be used to display the interface of the application program. Each interface may contain at least one application icon and/or interface elements such as widget desktop controls. The application program interface display area can also be an empty interface that does not contain any content. The commonly used control display area is used to display controls with high usage rate, such as setting buttons, interface numbers, scroll bars, phonebook icons and other application icons.

The processor 850 is the control center of the mobile terminal 800, and uses various interfaces and lines to connect various parts of the entire mobile phone, by running or executing the software programs and/or modules stored in the memory 821, and calling the software programs and/or modules stored in the auxiliary memory 822. to perform various functions of the mobile terminal 800 and process data, so as to monitor the mobile terminal 800 as a whole. Optionally, processor 850 may include one or more processing units.

The fingerprint identification module 890 may include one or more light-emitting devices, and the fingerprint identification module 890 may emit light under the control of the processor 850. When the mobile terminal 800 is in a dark environment, the fingerprint identification module 890 can emit light quickly and quickly. Find the mobile terminal 800; when the mobile terminal 800 receives an incoming call, information or other communication messages, it can be reminded by the light of the fingerprint identification module 890.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (10)

1. A fingerprint identification module is characterized by comprising a printed circuit board, a cover plate and a fingerprint identification component;

the fingerprint identification assembly comprises a wafer and a substrate, wherein the wafer is arranged on the substrate and is electrically connected with the substrate through a metal wire;

the fingerprint identification component is arranged on the printed circuit board, the cover plate covers the fingerprint identification component, and the cover plate area corresponding to the light-emitting device is a transparent or semitransparent area;

a decorative ring is arranged around the fingerprint identification component;

an accommodating space is reserved between the decorative ring and the fingerprint identification assembly, at least one auxiliary light-emitting device is arranged in the accommodating space, the auxiliary light-emitting device is electrically connected with the printed circuit board, and transparent filler is filled in the accommodating space;

the accommodating space comprises a first accommodating part and a second accommodating part, and the auxiliary light-emitting device is arranged in the second accommodating part, wherein the first accommodating part is adjacent to the fingerprint identification assembly, and the second accommodating part is positioned below the inner side of the decorative ring.

2. The fingerprint identification module of claim 1, wherein the light emitting device is attached to the substrate.

3. The fingerprint identification module of claim 1, wherein four light emitting devices are symmetrically arranged around the wafer.

4. The fingerprint identification module of claim 1, wherein the light emitting device is an LED lamp.

5. The fingerprint identification module of claim 3, wherein four of the light emitting devices are connected in series.

6. The fingerprint identification module of claim 1, wherein the encapsulation layer is a transparent material or a light guide material.

7. The fingerprint identification module of any one of claims 1 to 6, wherein four auxiliary light emitting devices are symmetrically arranged around the fingerprint identification assembly.

8. The fingerprint identification module of any one of claims 1-6, wherein the auxiliary light emitting device is an LED lamp.

9. A mobile terminal characterized by comprising a fingerprint identification module according to any of claims 1 to 8.

10. The mobile terminal of claim 9, wherein the mobile terminal comprises a cell phone, a tablet computer, a personal digital assistant, an e-book reader, an MP3 player, an MP4 player, a laptop portable computer, a car computer, a desktop computer, a set-top box, a smart television, or a wearable device.

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