WO2017206425A1

WO2017206425A1 - Flexible circuit board, biological information sensing module, and electronic device

Info

Publication number: WO2017206425A1
Application number: PCT/CN2016/102978
Authority: WO
Inventors: 王小明
Original assignee: 深圳信炜科技有限公司
Priority date: 2016-05-31
Filing date: 2016-10-22
Publication date: 2017-12-07
Also published as: CN205847224U; CN207819880U

Abstract

A flexible circuit board (50a), a biological information sensing module, and an electronic device (100). The electronic device (100) comprises: a protective cover plate (10) comprising a first surface (11) and a second surface (12) opposite to the first surface (11); a flexible circuit board (50a) provided with touch keys (20), the part, on which the touch keys (20) are provided, of the flexible circuit board (50a) being attached to the second surface (12) of the protective cover plate (10); and a biometric identification chip (30) connected to the touch keys (20) by means of the flexible circuit board (50a), used for sensing biological information of a user, and also used for driving the touch keys (20) to sense touches.

Description

Flexible circuit boards, biometric sensing modules, and electronic devices

[0001] This application claims the priority of the Chinese Patent Application, the entire disclosure of which is hereby incorporated by reference in its entirety in its entirety in

Technical Field

[0003] The present invention relates to the field of biological information sensing technology, and in particular, to a flexible circuit board, a biological information sensing module, and an electronic device.

BACKGROUND OF THE INVENTION

[0005] Currently, biosensor devices have gradually become standard equipment for electronic devices (e.g., mobile phones, etc.). However, the biosensor device is currently mainly used for sensing biological information input by a user, and the main control circuit of the electronic device controls whether the electronic device performs a preset function according to the biological information sensed by the biosensor device.

[0006] As the degree of integration of biosensor devices has gradually increased, the function of expanding biosensor devices has become a trend.

[0007] Utility model content

In order to solve the above technical problem, the present invention provides a flexible circuit board connecting a biometric chip and a touch button, and a biometric information sensing module and an electronic device that use a biometric chip to drive a touch button to perform a touch sensing function. device.

[0009] The present invention provides a flexible circuit board, including a touch button, the touch button is connected to a biometric chip through the flexible circuit board, and is configured to receive a driving signal from the biometric chip, and execute Touch sensing.

[0010] Optionally, the flexible circuit board includes a branch structure, and the touch button is disposed on a branch structure of the flexible circuit board.

[0011] Optionally, the flexible circuit board is disposed with the position of the touch button attached to a protective cover of the electronic device.

[0012] Optionally, the flexible circuit board is further configured to be connected to a motherboard of an electronic device, and perform signal transmission between the biometric chip and the motherboard.

[0013] Optionally, the flexible circuit board includes a two-branch structure, and each of the branch structures is provided with a touch button. The two branch structures are located on opposite sides of the biometric chip and are spaced apart from the biometric chip.

[0014] Optionally, the branch structure extends from the flexible circuit board.

[0015] Optionally, the biometric identification chip and the touch button are both disposed on the flexible circuit board, and the part of the biometric chip is disposed on the flexible circuit board and the touch button is disposed Part is the phase separated part.

[0016] The present invention also provides a biological information sensing module, including:

[0017] a flexible circuit board, including a branch structure;

[0018] a touch button is formed on a branch structure of the flexible circuit board;

[0019] The biometric chip is connected to the touch button through the flexible circuit board for sensing biometric information of the user, and is also used to drive the touch button to perform touch sensing.

[0020] Optionally, the branching structure is provided with a spacing between a portion of the touch button and the biometric chip.

[0021] Optionally, the flexible circuit board includes a two-branch structure, and each of the branch structures is provided with a touch button, and the portion of the two-branch structure provided with the touch button is located on opposite sides of the biometric chip. .

[0022] Optionally, the biometric chip is located between the two branch structures and is spaced apart from the two branch structures.

[0023] Optionally, the flexible circuit board is further configured to be connected to a motherboard of an electronic device, and perform signal transmission between the biometric chip and the motherboard.

[0024] Optionally, the biometric information sensing module is a fingerprint information sensing module.

[0025] Optionally, the branch structure extends from the flexible circuit board.

[0026] Optionally, the biometric identification chip and the touch button are both disposed on the flexible circuit board, and the part of the biometric chip is disposed on the flexible circuit board and the touch button is disposed. Part is the phase separated part.

[0027] The present invention also provides an electronic device, including:

[0028] a protective cover, comprising a first surface and a second surface opposite to the first surface;

[0029] a flexible circuit board provided with a touch button attached to the second surface of the protective cover; [0030] The biometric chip is connected to the touch button through the flexible circuit board for sensing biometric information of the user, and is further configured to drive the touch button to perform touch sensing.

[0031] Optionally, the flexible circuit board includes a branch structure, and the touch button is disposed on the branch structure

[0032] Optionally, two touch buttons are disposed on the flexible circuit board, and the two touch buttons are located on opposite sides of the biometric chip.

[0033] Optionally, the flexible circuit board includes a two-branch structure, and each of the branch structures is provided with a touch button, and the biometric chip is located between the two branch structures and spaced apart from the two branch structures. Settings.

[0034] Optionally, a light shielding layer is formed on the second surface of the protective cover, and the flexible circuit board is disposed on the light shielding layer at a position where the touch button is disposed.

[0035] Optionally, the first surface of the protective cover is configured to receive a touch input of a user, and the electronic device further includes a touch display device disposed on a side of the second surface of the protective cover, Perform image display and touch sensing.

[0036] Optionally, the touch display device is an in-cell touch display device, and the touch button is disposed opposite to the in-cell touch display device, wherein the touch button is used to sense a user at the first Surface touch operation.

[0037] Optionally, the branch structure extends from the flexible circuit board.

[0038] Optionally, the biometric identification chip and the touch button are both disposed on the flexible circuit board, and the part of the biometric chip is disposed on the flexible circuit board and the touch button is disposed Part is the phase separated part.

[0039] Optionally, a through hole is disposed on the protective cover, and the biometric chip is disposed at the through hole.

[0040] Optionally, the electronic device further includes a motherboard, wherein the flexible circuit board is further configured to be connected to the motherboard, and perform signal transmission between the biometric chip and the motherboard.

[0041] Optionally, the biometric chip is a fingerprint identification chip.

[0042] The present invention also provides an electronic device, including:

[0043] a protective cover, comprising a first surface and a second surface opposite to the first surface;

[0044] a touch button is formed on the second surface of the protective cover;

[0045] a wire formed on the second surface of the protective cover and connected to the touch button; [0046] a biometric chip, connected to the touch button by the wire, for sensing biological information of a user

And for driving the touch button to perform touch sensing.

[0047] Optionally, a light shielding layer is formed on the second surface of the protective cover, and the touch button and the wire are directly formed on the light shielding layer.

[0048] Optionally, the first surface of the protective cover is configured to receive a touch input of a user.

[0049] Optionally, the electronic device further comprises a touch display device disposed on a side of the second surface of the protective cover for performing image display and touch sensing.

[0050] Optionally, the touch display device is an in-cell touch display device.

[0051] Optionally, the biometric chip is bound to the second surface side of the protective cover by a flip chip process

The wire is located between the biometric chip and the touch button.

[0052] Optionally, the wire and/or the touch button are made of conductive silver paste or molybdenum lithium molybdenum.

[0053] Since the flexible circuit board of the present invention is used to connect the biometric chip and the touch button, the circuit structure can be made more compact. In addition, since the biometric information sensing module of the present invention and the biometric identification chip of the electronic device are used to sense biometric information input by the user, the biometric information chip is also used to drive the touch button to perform touch sensing, thereby functioning the biometric identification chip. Further expansion to improve the utilization of biometric chips.

[0054] While a number of embodiments, including variations thereof, have been disclosed, the following detailed description of illustrative embodiments of the present invention is shown and described, and other embodiments of the present disclosure will be It will be apparent to those skilled in the art. It will be appreciated that the present invention may be modified in various obvious forms without departing from the spirit and scope of the invention. Accordingly, the drawings and detailed description are to be regarded as

BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The features and advantages of the present invention will become more apparent from the detailed description.

1 is a partially exploded perspective view of an embodiment of a mobile phone of the present invention.

[0058] FIG. 1a is a schematic cross-sectional view showing a partial structure of the mobile phone shown in FIG.

[0059] FIG. 1b is a schematic diagram showing a partial assembly structure of the mobile phone shown in FIG. 1.

2 is a schematic diagram showing the structure of a modified embodiment of the touch button shown in FIG. 3 is a circuit block diagram of the biometric chip shown in FIG.

4 is a schematic block diagram showing a partial structure of a modified embodiment of the mobile phone of the present invention.

5 is a schematic block diagram showing a partial structure of still another modified embodiment of the mobile phone of the present invention.

6 is a schematic block diagram showing a partial structure of still another modified embodiment of the mobile phone of the present invention.

7 is a schematic block diagram showing a partial structure of still another modified embodiment of the mobile phone of the present invention.

DETAILED DESCRIPTION

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in a variety of forms, and should not be construed as being limited to the embodiments set forth herein. It is communicated to those skilled in the art. The thickness and size of each layer shown in the drawings may be exaggerated, omitted or schematically shown, and the number of related elements may be schematically illustrated for convenience or clarity. In addition, the size of the component does not fully reflect the actual size, and the number of related components does not fully reflect the actual number.

[0068] In the description of the present invention, it is to be understood that “a plurality of” is defined as two or more, unless specifically and specifically defined, correspondingly, the definition applies to “multiple”, “ There are many terms such as "" and "multiple". "Connected" may be in various embodiments, such as electrical connections, mechanical connections, couplings, direct connections, and indirect connections, and is not specifically limited unless otherwise specifically described herein.

[0069] In the present invention, the terms "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top" The orientation or positional relationship of the "bottom", "inside", "outside" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The device or component must have a particular orientation, configuration and operation in a particular orientation, and thus is not to be construed as limiting the invention.

Furthermore, the described features, structures may be combined in any one or more embodiments in any suitable manner. In the following description, numerous specific details are set forth However, those skilled in the art will appreciate that the technical solution of the present invention may be practiced without one or more of the specific details, or other structures, components, and the like. In other instances, well-known structures or operations are not shown or described in detail to avoid obscuring the invention.

[0071] Please refer to FIG. 1-lb. FIG. 1 is a partially exploded perspective view of an embodiment of an electronic device according to the present invention. Figure la is a schematic sectional view showing a part of the structure of the mobile phone shown in Figure 1. Figure lb is a part of the mobile phone shown in Figure 1. Schematic diagram of the assembled structure. The utility model provides an electronic device, which can be a portable electronic product, a home-based electronic product or an in-vehicle electronic product. However, the electronic device is not limited to the electronic products listed herein, but may be other suitable electronic products. The portable electronic product is, for example, a mobile terminal, and the mobile terminal is, for example, a suitable mobile terminal such as the mobile phone, tablet computer, notebook computer, wearable product, or the like. The home-based electronic product is, for example, a smart home door lock, a television, a refrigerator, a desktop computer, and the like. The in-vehicle electronic products are, for example, suitable in-vehicle electronic products such as an in-vehicle display, a driving recorder, a navigator, and a car refrigerator. To facilitate understanding and description of the technical solution of the present invention, the electronic device 100 is described by taking the commonly used mobile phone as an example. The electronic device 100 includes a protective cover 10, a touch button 20, and a biometric chip 30.

[0072] The protective cover 10 includes a first surface 11 and a second surface 12 opposite the first surface 11. The first surface

11 is the outer surface of the electronic device 100, that is, the surface that the user can directly touch. The second surface 12 is located inside the electronic device 100. The protective cover 10 is, for example, a transparent glass or sapphire cover. However, the material of the protective cover 10 may also be other suitable materials, and is not limited to a glass or sapphire cover, for example, a film cover. board. Alternatively, for different types of electronic devices 100, the protective cover 10 can also be a translucent or non-transparent cover.

[0073] The touch button 20 is disposed on the second surface 12 of the protective cover 10. The biometric identification chip 30 is connected to the touch button 20 for sensing biological information input by the user from the first surface 11, and is also used to drive the touch button 20 to perform a touch sensing function. When the biometric identification chip 30 detects that the input biometric information matches the biometric information template pre-stored in the electronic device 100, the electronic device 100 performs a preset function or an application, for example: a screen unlocking function, Payment function, launch APP (App licatio, application), open folder, and more.

[0074] Since the biometric identification chip 30 of the present invention is further used to drive the touch button 20 to perform touch sensing, the function of the biometric identification chip 30 is further expanded to improve the utilization rate of the biometric identification chip 30.

[0075] The biometric identification chip 30 is, for example, one or more of a fingerprint recognition chip, a blood oxygen recognition chip, a heartbeat recognition chip, a pressure recognition chip, a humidity recognition chip, a temperature recognition chip, and an iris recognition chip. Correspondingly, the biometric information is, for example, one or more of fingerprint information, blood oxygen information, heartbeat information, pressure information, humidity information, temperature information, and iris information. However, the present invention is not limited to this The types of biometric chip 30 and biometric information listed may also be other suitable biometric chips 30 and types of biometric information.

In the present embodiment, the biometric chip 30 is disposed on the second surface 12 side of the protective cover 10.

The biometric chip 30 can also be disposed at other suitable locations on the side of the electronic device 100, and is not limited to the front side of the electronic device 100. In addition, in the present embodiment, the biometric chip 30 is disposed under the protective cover 10, and the through cover may be provided on the protective cover 10, and the biometric chip 30 is disposed at In the through hole. Further, the biometric chip 30 may be combined with a solid button and disposed in the through hole.

In the present embodiment, the biometric identification chip 30 is disposed on the second surface 12 of the protective cover 10 by a flip chip (Flip-CWp) technology and is connected to the touch button 20. Preferably, the biometric chip 30 is a die.

[0078] When the protective cover 10 is a glass cover or a sapphire cover, the biometric chip 30 is bonded to the second cover of the cover 10 by a COG (CW on Glass) process. On the surface 12. However, the protective cover 10 is, for example, a film cover 吋, and correspondingly, the biometric chip 30 can be bound to the protective cover 10 by a COF (CWp On Film) process. Two surfaces 12 on top.

The electronic device 100 further includes a light shielding layer 40 disposed on the second surface 12 of the protective cover 10 to define the light transmitting region 101 and the non-light transmitting region 102 on the protective cover 10. . The touch button 20 may be disposed on the non-transmissive region 102 of the second surface 12 of the protective cover 10 or may be disposed on the transparent region 101 of the second surface 12. Similarly, the biometric chip 30 may be disposed on the second surface 12 of the protective cover 10 or the light transmissive region 101 of the second surface 12. The touch button 20 and the biometric chip 30 may be located on the same side of the transparent area 101 of the protective cover 10 or on either side of the transparent area 101 of the protective cover 10.

In the embodiment, the biometric identification chip 30 is disposed adjacent to the touch button 20, and is disposed at one end of the protective cover 10, that is, at the same end of the electronic device 100.

Further, as shown in FIGS. 1 and 1b, the non-transparent area 102 is provided with a touch mark 21. The touch mark 21 is disposed corresponding to the touch button 20, and is used to mark the position of the touch button 20 or the function of the touch button 20.

[0082] The wire 50 is further formed on the non-transparent region 101 of the second surface 12 of the protective cover 10. Said A wire 50 is used to electrically connect the biometric chip 30 with the touch button 20. The wire 50 is located between the touch button 20 and the biometric chip 30.

[0083] The wires 50 are a plurality of wires. The wire 50 is formed, for example, of a conductive silver paste or molybdenum lithium molybdenum. Specifically, after the light shielding layer 40 is formed on the second surface 12 of the protective cover 10, a wire layer is formed on the light shielding layer 40 by coating or brushing silver paste or molybdenum lithium molybdenum, and then, on the wire The layer is subjected to an operation such as etching to form the wire 50. Alternatively, in other embodiments, the wire 50 may be directly formed on the light shielding layer 40, and the wire 50 may also be made of a conductive material such as metal or indium tin oxide.

[0084] As shown in FIG. la, an anisotropic conductive layer 60 is formed between the wire 50 and the biometric chip 30.

The biometric chip 30 is electrically connected to the touch button 20 via the anisotropic conductive layer 60 and the wire 50. The anisotropic conductive layer 60 may be disposed in the non-transparent area 102 on the protective cover 10 together with the touch button 20, the wire 50, and the biometric chip 30. The anisotropic conductive layer 60, the touch button 20, the wire 50, and a portion of the biometric chip 30 are disposed on the non-transparent region 102 of the protective cover 10, and another portion is disposed at the The light transmissive area 101 on the protective cover 10 is described. The anisotropic conductive layer 60 is, for example, an anisotropic conductive film (Anisotropic)

Conductive Film, ACF) 14 or Anisotropic conductive adhesive/paste (AACA/ACP). However, the anisotropic conductive layer 60 may also be other suitable materials capable of achieving an anisotropic conductive function, and is not limited to the ACF, ACA, ACP described in the present application.

In the present embodiment, the biometric identification chip 30 is bonded to the protective cover 10 by a flip chip process. Alternatively, the biometric chip 30 can be formed on the protective cover 10 by other suitable processes or methods, and connected to the touch button 20 through the anisotropic conductive layer 60 and the wires 50.

In the embodiment, the touch button 20 includes a sensing electrode 22 and a driving electrode 23, and a mutual capacitance is formed between the sensing electrode 22 and the driving electrode 23, and is sensed based on the mutual capacitance sensing principle. Is there a touch operation? The drive electrode 23 surrounds the sensing electrode 22 and is formed on the second surface 12 of the protective cover 10 with the sensing electrode 22. However, the positions of the drive electrodes 23 and the sensing electrodes 22 are also interchangeable. In addition, the sensing electrode 22 and the driving electrode 23 may also be formed on other suitable components, for example, formed on a flexible circuit board, and then electrically connected to the biometric chip 30 through the flexible circuit board. The flexible circuit board is attached to the protective cover 10.

[0087] When the sensing electrode 22 and the driving electrode 23 are formed on the second surface 12 of the protective cover 10, The sensing electrode 22 and the driving electrode 23 may be made of conductive silver paste or molybdenum lithium molybdenum. Of course, the sensing electrode 22 and the driving electrode 23 can also be made of other suitable materials.

Referring to FIG. 2, FIG. 2 is a schematic diagram showing the structure of the touch button 20 shown in FIG. The touch button 20 includes a sensing electrode 24 that detects whether there is a touch operation based on a self-capacitance sensing principle. The sensing electrode 24 is, for example, a spiral electrode.

[0089] Please refer to FIG. 1b and FIG. 3 together. FIG. 3 is a circuit block diagram of the biometric identification chip 30 shown in FIG. The biometric identification chip 30 includes a sensing electrode array 31 and a driving circuit 32. The driving circuit 32 is connected to the sensing electrode array 31 and the touch button 20, respectively. The driving circuit 32 drives the sensing electrode array 31 to perform biometric information sensing, and also drives the touch button 20 to perform touch sensing.

[0090] The driving circuit 32 provides a touch driving signal to the driving electrode 23, and receives a touch sensing signal from the sensing electrode 22 to know whether the touch button 20 is touched according to the touch sensing signal.

[0091] The driving circuit 32 operates the sensing electrode array 31 and the touch button 20 in a blinking or split manner.

[0092] With continued reference to FIGS. 1 and 2, the electronic device 100 further includes a rear case 70, a main board 75, and a display device 80. The display device 80 is used for screen display. The main board 75 is connected to the display device 80 and the biometric chip 30 for communication with the display device 80 and the biometric chip 30. The protective cover 10 cooperates with the rear case 70 to form a receiving space for receiving the biometric chip 30, the touch button 20, the display device 80, and the main board 75 in the receiving space. The rear case 70 includes a side surface 72.

Please refer to FIG. 4. FIG. 4 is a schematic diagram showing a partial structure of a modified embodiment of the mobile phone of the present invention. The biometric identification chip 30 is disposed on the side 72. Preferably, the biometric chip 30 is disposed adjacent to the touch button 20. For example, as shown in FIG. 4, the biometric identification chip 30 is disposed at a lower end of the left side surface 72 of the rear case 70 to facilitate contact of a little finger in a user's finger, and the touch button 20 is disposed on the second surface 12 The lower end is adjacent to the biometric chip 30. The biometric chip 30 and the touch button 20 of the present invention are not limited to the above-mentioned setting manner, and may be other suitable setting manners.

[0094] Please refer to FIG. 1, FIG. 2, and FIG. 5 together. FIG. 5 is a schematic diagram showing a partial structure of another modified embodiment of the mobile phone of the present invention. The electronic device 100 still further includes a touch sensing layer 90. The touch sensing layer 90 is disposed on the second surface 12 of the protective cover 10 for sensing a user touch operation on the area of the protective cover 10 that is not blocked by the light shielding layer 40. [0095] The touch sensing layer 90 may be stacked between the display device 80 and the protective cover 10, or may be embedded in the display device 80 to form an in-cell touch display device. The in-cell touch display device may be an In-Cell touch display device or an On-Cell touch display device. The display device 80 is, for example, a liquid crystal display device, an organic electroluminescence display device, or the like, of a suitable type of display device. The touch sensing layer 90 may be an additional electrode layer or an electrode structure of the multiplexing display device 80 itself. The touch sensing layer 90 can be a single layer structure or a two layer structure. Further, the sensing principle of the touch sensing layer 90 may be a mutual capacitance sensing principle or a self capacitance sensing principle.

[0096] When the display device 80 is a liquid crystal display device, the touch sensing layer 90 is disposed, for example, between a polarizer and a color filter to form an On-Cell touch display device. Alternatively, the touch sensing layer 90 may be disposed, for example, between the color filter substrate and the film array substrate to form an In-Cell touch display device, etc.

[0097] As the touch sensing layer 90 is gradually integrated into the display device 80, an in-cell touch display device is formed, and the touch driving chip for driving the touch sensing layer 90 gradually becomes the display driving chip for driving the display device 80. Integrated in the same touch display driver chip. Generally, an antenna is disposed in a lower end of the electronic device 100 (ie, near one end of the microphone). To facilitate heat dissipation, the touch display driving chip is generally disposed at an upper end of the electronic device 100 (ie, near one end of the earpiece), that is, touching the display driving chip and touching Buttons 20 are located at both ends of the phone. If the touch display driver chip is further used to drive the touch button 20, a long wire needs to be disposed between the touch display driving chip and the touch button 20, thereby causing the connecting wire to occupy more internal space of the mobile phone, and The arrangement of other components and the signal transmission have an effect.

[0098] For the electronic device 100 having an in-cell touch display device, the present invention proposes to further drive the touch button 20 to perform a touch operation by using the biometric chip 30, so that the driving path of the touch button 20 can be shortened, and material cost is saved. The occupation of the internal space of the electronic device 100 is reduced, the arrangement of other components is facilitated, and the stability of signal transmission of the electronic device 100 is improved.

[0099] In particular, when the biometric identification chip 30 is disposed on the front side of the electronic device 100 and is located at the same end of the electronic device 100 as the touch button 20, the wire 50 connecting the biometric identification chip 30 and the touch button 20 is further shortened, and Formed directly on the protective cover 10, it further saves space and reduces interference with other signals. [0100] It should be further noted that the electronic device 100 may further add elements not shown in the drawings or reduce some of the elements or components shown in the illustration, such as adding a motherboard for use according to the biometric identification. The biometric information sensed by the chip 30 corresponds to the control electronics 100 performing the corresponding function. However, the present invention is not limited to the addition of the motherboards listed herein. The electronic device 100 of the present invention may select or increase or reduce components or components according to actual needs.

Please refer to FIG. 6. FIG. 6 is a schematic diagram showing a partial assembly structure of still another embodiment of the mobile phone of the present invention. In this embodiment, the biometric identification chip 30 is, for example, a packaged chip, which may be a chip including a single die, or a chip including a plurality of dies. The biometric chip 30 is adhered to the second surface 12 of the protective cover 10, for example, by an adhesive layer, and is located in a non-transparent area with the touch button 20. The biometric chip 30 is coupled to the touch button 20 via a connector 50a. Preferably, the connector 50a is a flexible circuit board. However, the connecting member 50a is not limited to the flexible circuit board 50a, and may be other suitable components.

[0102] The touch button 20 may be disposed on the protective cover 10 or may be disposed on the connecting member 50a. When the touch button 20 is set on the connector 50a, the connector 50a is attached to the protective cover 10 corresponding to the position where the touch button 20 is disposed.

[0103] The biosensor chip 30 is further connected to the main board 75 (see FIG. 1) through the connecting member 50a, and performs data communication with the main board 75. The main board 75 controls whether the electronic device 100 performs a corresponding function according to the information sensed by the biometric chip 30.

[0104] Alternatively, the biometric chip 30 can also be disposed on the second surface 12 by other suitable means such as imprinting. Still alternatively, the biometric chip 30 is disposed adjacent to the protective cover 30, and there is no intermediate connection medium between the protective cover 30 and the protective cover 30. In addition, the biometric chip 30 can also be assembled with a physical button. The protective cover 10 is correspondingly provided with a through hole for receiving the biometric chip and the physical button. The biometric identification chip 30 can also be formed at other suitable locations of the electronic device 100, and is not limited to the front side of the electronic device 100.

[0105] Preferably, the biometric chip 30 and the touch button 20 are formed at the same end of the electronic device 100.

The biometric chip 30 is disposed on the front side of the electronic device 100. Further, for the electronic device 100 having the in-cell touch display device, the biometric chip 30 and the touch button 20 are formed between the in-cell touch display device and the protective cover 10. [0106] However, for the electronic device 100 having the in-cell touch display device, the biometric chip 30 may be formed on the side of the electronic device 100, and is not limited to being disposed on the front side of the electronic device 100.

Please refer to FIG. 7, FIG. 7 is a schematic structural diagram of another embodiment of the mobile phone of the present invention. In the present embodiment, the circuit for driving the touch button 20 is further integrated as a driver chip 35, which is not integrated in the biometric chip 30 as shown in FIG. The driving chip 35 is disposed on the flexible circuit board 50a and connected to the biometric chip 30. The biometric identification chip 30 outputs a touch driving signal to the touch button 20, and receives the touch button from the biometric chip 30. 20 output touch sensing signals.

[0108] The biometric identification chip 30 is, for example, a die formed on the protective cover 10 by a flip chip process. The touch button 20 is formed, for example, on the second surface 12 of the protective cover 10. The biometric chip 30 is connected to the touch button 20 via a wire 50. The wire 50 is formed on the second surface 12 and is located between the touch button 20 and the biometric chip 30. However, the touch button 20 can also be formed on other media (such as a flexible circuit board) and attached to the protective cover 10.

While the present invention has been described with reference to various embodiments, it is understood that these embodiments are illustrative and the scope of the invention is not limited thereto. Many changes, modifications, additions, and improvements are possible. More generally, embodiments of the present disclosure are described in the context of particular embodiments. The functions may be separated or combined in different ways in the various embodiments of the present disclosure, or may be described using different terms. These and other variations, modifications, additions, and improvements may be made within the scope of the present invention as defined by the following claims. technical problem

Problem solution

Advantageous effects of the invention

Claims

Claim

[Claim 1] A flexible circuit board comprising a touch button, the touch button being connected to a biometric chip through the flexible circuit board, for receiving a driving signal from the biometric chip, and performing a touch feeling Measurement.

[Claim 2] The flexible circuit board according to claim 1, wherein: the flexible circuit board includes a branch structure, and the touch button is disposed on a branch structure of the flexible circuit board.

[Claim 3] The flexible circuit board according to claim 1 or 2, wherein: the flexible circuit board is provided with the position of the touch button attached to a protective cover of an electronic device.

[Claim 4] The flexible circuit board according to claim 1, wherein: the flexible circuit board is further configured to be connected to a motherboard of an electronic device, between the biometric chip and the motherboard Signal transmission.

[Claim 5] The flexible circuit board according to claim 4, wherein: the flexible circuit board comprises a two-branch structure, each of the branch structures is provided with a touch button, and the two-branch structure is located at the The opposite sides of the biometric chip are spaced apart from the biometric chip.

[Claim 6] The flexible circuit board according to claim 1, wherein: the branch structure extends from the flexible circuit board.

[Claim 7] The flexible circuit board according to claim 1, wherein: the biometric chip and the touch button are both disposed on the flexible circuit board, and the flexible circuit board is disposed a portion of the biometric chip that is separated from a portion where the touch button is disposed

[Claim 8] A biological information sensing module, comprising:

a flexible circuit board, including a branch structure;

a touch button is formed on the branch structure of the flexible circuit board; a biometric chip is connected to the touch button through the flexible circuit board, and is used for sensing biometric information of the user, and is also used to drive the touch button to execute Touch sensing.

[Claim 9] The biological information sensing module according to claim 8, wherein: the branching structure is provided with a portion of the touch button and is spaced apart from the biometric chip.

[Claim 10] The biological information sensing module according to claim 8, wherein: the flexible circuit The board includes a two-branch structure, and each of the branch structures is provided with a touch button, and the portion of the two-branch structure on which the touch buttons are disposed is located on opposite sides of the biometric chip. The biometric information sensing module according to claim 10, wherein the biometric identification chip is located between the two branch structures and spaced apart from the two branch structures. The biometric information sensing module according to claim 8, wherein: the flexible circuit board is further configured to be connected to a main board of an electronic device, and perform signal transmission between the biometric chip and the main board. .

The biometric information sensing module according to claim 8, wherein the biometric information sensing module is a fingerprint information sensing module.

The biological information sensing module according to claim 8, wherein: said branch structure extends from said flexible circuit board.

The biometric information sensing module according to claim 8, wherein: the biometric identification chip and the touch button are both disposed on the flexible circuit board, and the living circuit is disposed on the flexible circuit board. A portion of the identification chip is separated from a portion where the touch button is disposed.

An electronic device comprising:

a protective cover comprising a first surface and a second surface opposite the first surface;

a flexible circuit board provided with a touch button attached to the second surface of the protective cover;

The biometric chip is connected to the touch button through the flexible circuit board for sensing biometric information of the user, and is also used to drive the touch button to perform touch sensing.

The electronic device according to claim 16, wherein: said flexible circuit board comprises a branch structure, and said touch button is disposed on said branch structure.

The electronic device according to claim 16, wherein: the touch panel is provided with two touch buttons, and the two touch buttons are located on opposite sides of the biometric chip. The electronic device according to claim 18, wherein: the flexible circuit board comprises a two-branch structure, each of the branch structures is provided with a touch button, and the biometric chip is located between the two branch structures, and It is spaced apart from the two branch structures. The electronic device according to claim 16, wherein: a shielding layer is formed on the second surface of the protective cover, and the flexible circuit board is attached to the light shielding layer at a position where the touch button is disposed.

The electronic device according to claim 16, wherein: the first surface of the protective cover is adapted to receive a touch input of a user, and the electronic device further comprises a touch display device disposed on the protective cover An electronic device according to claim 21, wherein: the touch display device is an in-cell touch display device, the touch button and the in-line type The touch display device is oppositely disposed, wherein the touch button is used to sense a touch operation of the user on the first surface. The electronic device of claim 17, wherein: said branching structure extends from said flexible circuit board.

The electronic device according to claim 16, wherein: the biometric chip and the touch button are both disposed on the flexible circuit board, and the part of the biometric chip is disposed on the flexible circuit board A portion separated from a portion where the touch button is disposed. The electronic device according to any one of claims 16 to 24, wherein: the protective cover is provided with a through hole, and the biometric chip is disposed at the through hole.

The electronic device according to claim 16, wherein: the electronic device further comprises a motherboard, wherein the flexible circuit board is further configured to be connected to the motherboard, between the biometric chip and the motherboard Signal transmission.

The electronic device according to claim 16, wherein: said biometric chip is a fingerprint recognition chip.

An electronic device comprising:

Touching a button, formed on the second surface of the protective cover;

a wire formed on the second surface of the protective cover and connected to the touch button; and a biometric chip connected to the touch button through the wire for sensing biological information of the user and also for driving The touch button performs touch sensing. [Claim 29] The electronic device according to claim 28, wherein: a shielding layer is formed on the second surface of the protective cover, and the touch button and the wire are directly formed on the light shielding layer .

[Claim 30] The electronic device of claim 28, wherein: the first surface of the protective cover is adapted to receive a user's touch input.

[Claim 31] The electronic device according to claim 30, wherein: the electronic device further includes a touch display device disposed on a side of the second surface of the protective cover for performing image display and touch Sensing.

[Claim 32] The electronic device according to claim 31, wherein: the touch display device is an in-cell touch display device.

[Claim 33] The electronic device according to claim 28, wherein: the biometric chip is bound to a side of a second surface of the protective cover by a flip chip process, and the wire is located in the living body Identifying between the chip and the touch button.

[Claim 34] The electronic device according to claim 28, wherein the wire and/or the touch button are made of conductive silver paste or molybdenum lithium molybdenum.