Fingerprint identification module with peripheral light emitting function

Abstract

The utility model provides a fingerprint identification module with peripheral light emitting, which comprises a bearing seat, a tubular light guide element, a flexible circuit board, a fingerprint identification element and a plurality of light emitting elements, the bearing seat is provided with an accommodating space, the accommodating space is provided with an opening, a first bottom, an inner side wall and a through notch formed on the first bottom, and the tubular light guide element is provided with a plurality of light emitting elements. The flexible circuit board comprises a first sub-circuit board, a second sub-circuit board connected with the first sub-circuit board, a third sub-circuit board connected with the second sub-circuit board and a fourth sub-circuit board connected with the third sub-circuit board; wherein the fingerprint identification element, the flexible circuit board and the plurality of light-emitting elements are arranged in the tubular light guide element, the second sub-circuit board is bent to the second lower surface of the second sub-circuit board to be close to the first lower surface of the first sub-circuit board, the third sub-circuit board is bent and penetrates through the through notch, and the second sub-circuit board is bent to the second lower surface of the second sub-circuit board to be close to the first lower surface of the first sub-circuit board. The fourth sub-circuit board is bent and arranged outside the bearing seat.

Description

Technical Field

[0001] The utility model relates to a fingerprint identification module, in particular to a thin fingerprint identification module with peripheral light emission. Background Art

[0002] Currently, many types of electronic devices are equipped with fingerprint recognition modules, such as mobile phones, tablet computers, keyboards, etc. Some fingerprint recognition modules also use light guide elements and backlight sources to indicate the operation area and display the operation status so that they have the function of peripheral lighting.

[0003] Regarding the prior art of the fingerprint recognition module with peripheral light emission, the fingerprint recognition element and the multiple light-emitting elements of the backlight source are all electrically connected to the same flexible circuit board. In order to prevent the flexible circuit board from blocking the light emitted by the multiple light-emitting elements, the fingerprint recognition module with peripheral light emission in the prior art adopts the solution of electrically connecting the multiple light-emitting elements to the upper and lower surfaces of different parts of the flexible circuit board respectively, and placing the multiple light-emitting elements on different planes in the supporting seat. This solution also requires the use of at least two light-guiding elements of different shapes. Therefore, the thickness of the fingerprint recognition module with peripheral light emission in the prior art is thicker.

[0004] There is also a fingerprint recognition module with peripheral light emission in the prior art that electrically connects multiple light-emitting elements and a fingerprint recognition element to the upper surface of a flexible circuit board, and divides the multiple light-emitting elements into two parts, and places the fingerprint recognition element between the two parts of the light-emitting elements. The two parts of the light-emitting elements are placed under the fingerprint recognition element as the flexible circuit board is bent in the prior art. The flexible circuit board of the fingerprint recognition module with peripheral light emission in the prior art has a large turning radius at the bending part, and the fingerprint recognition element can be placed flatly in the supporting seat only by adding a fixing component between the fingerprint recognition element and the flexible circuit board to which the multiple light-emitting elements are connected. Obviously, the fingerprint recognition module with peripheral light emission in the prior art still has a certain thickness. In addition, the fingerprint recognition module with peripheral light emission in the prior art must use a light-guiding element with a complex shape, resulting in a higher manufacturing cost.

[0005] Obviously, the fingerprint recognition module with peripheral light emission in the prior art cannot be applied to (for example, thin keyboards) due to its own thickness, and its own manufacturing cost is relatively high. In addition, the flexible circuit board of the fingerprint recognition module with peripheral light emission in the prior art is prone to breakage at the joint between the fingerprint recognition element or the light emission element near the bend and the flexible circuit board due to stress concentration. Utility Model Content

[0006] The utility model provides a fingerprint identification module with peripheral light emission, which is thinner and is convenient for being applied to thin electronic devices.

[0007] In order to achieve the above-mentioned purpose, the utility model proposes a fingerprint recognition module with peripheral light emission, which includes a bearing seat, a tubular light guide element, a flexible circuit board, a fingerprint recognition element and a plurality of light-emitting elements, the bearing seat has a storage space, the storage space has an opening, a first bottom, an inner side wall and a through notch formed on the first bottom; the tubular light guide element has a top and a second bottom, the periphery of the tubular light guide element matches the inner side wall of the storage space, the tubular light guide element is placed in the storage space, and the periphery of the tubular light guide element is adjacent to the inner side wall of the storage space; the flexible circuit board includes a first sub-circuit board, a second sub-circuit board connected to the first sub-circuit board, a third sub-circuit board connected to the second sub-circuit board and a fourth sub-circuit board connected to the third sub-circuit board; the fingerprint recognition element The component is electrically connected to the first upper surface of the first sub-circuit board; the multiple light-emitting elements are electrically connected to the first lower surface of the first sub-circuit board, wherein the fingerprint recognition element, the flexible circuit board and the multiple light-emitting elements are placed in the tubular light guide element, the fingerprint recognition element is located at the top of the tubular light guide element, the multiple light-emitting elements are close to the second bottom of the tubular light guide element, the second sub-circuit board is bent to the second lower surface of the second sub-circuit board close to the first lower surface of the first sub-circuit board, the third sub-circuit board is bent and passes through the through gap, the fourth sub-circuit board is bent and placed outside the supporting seat, and each light-emitting element is driven to emit its own light from the second bottom of the tubular light guide element into the tubular light guide element and then guided to be emitted from the top of the tubular light guide element.

[0008] As an optional technical solution, the fingerprint recognition module with peripheral light emission further includes:

[0009] A transparent protective cover is arranged at the opening of the accommodating space to cover the top of the tubular light guide element and the fingerprint identification element.

[0010] As an optional technical solution, the first width of the first sub-circuit board is greater than the second width of the second sub-circuit board, and the second width of the second sub-circuit board is greater than the third width of the third sub-circuit board.

[0011] As an optional technical solution, the second sub-circuit board is connected to a predetermined edge of the first sub-circuit board, and the first sub-circuit board has two extension parts, which extend from the predetermined edge of the first sub-circuit board and are respectively located on both sides of the second sub-circuit board.

[0012] As an optional technical solution, two light-emitting elements among the plurality of light-emitting elements are electrically connected to the two extending portions respectively.

[0013] As an optional technical solution, the plurality of light emitting elements are respectively adjacent to a plurality of corners of the first sub-circuit board.

[0014] In addition, the utility model also proposes a fingerprint recognition module with peripheral light emission, which includes a supporting seat, a tubular light guide element, a first flexible circuit board, a fingerprint recognition element, a plurality of light-emitting elements and a second flexible circuit board, the supporting seat has a receiving space, the receiving space has an opening, a first bottom, an inner side wall and a through notch formed on the first bottom; the tubular light guide element has a top and a second bottom, the periphery of the tubular light guide element matches the inner side wall of the receiving space, the tubular light guide element is placed in the receiving space, and the periphery of the tubular light guide element is adjacent to the inner side wall of the receiving space; the fingerprint recognition element is electrically connected to the upper surface of the first flexible circuit board; the plurality of light-emitting elements The second flexible circuit board is electrically connected to the lower surface of the first flexible circuit board; the end of the second flexible circuit board is electrically connected or electrically connected to the lower surface of the first flexible circuit board, wherein the fingerprint recognition element, the first flexible circuit board, the plurality of light-emitting elements and the second flexible circuit board are placed in the tubular light guide element, the fingerprint recognition element is located at the top of the tubular light guide element, the plurality of light-emitting elements are close to the second bottom of the tubular light guide element, the second flexible circuit board passes through the through notch and is then placed outside the supporting seat, and each light-emitting element is driven to emit its own light from the second bottom of the tubular light guide element into the tubular light guide element and then guided to be emitted from the top of the tubular light guide element.

[0015] As an optional technical solution, the fingerprint recognition module with peripheral light emission also includes:

[0016] A transparent protective cover is arranged at the opening of the accommodating space to cover the top of the tubular light guide element and the fingerprint identification element.

[0017] As an optional technical solution, the first width of the first sub-circuit board is greater than the second width of the second sub-circuit board.

[0018] As an optional technical solution, the plurality of light emitting elements are respectively adjacent to a plurality of corners of the first flexible circuit board.

[0019] The utility model provides a fingerprint recognition module with peripheral light emission, which is relatively thin and is convenient for application in thin electronic devices. The fingerprint recognition module with peripheral light emission according to the utility model adopts a tubular light-guiding element with a simple shape, and the overall manufacturing cost is low. The fingerprint recognition module with peripheral light emission according to the utility model has a very small turning radius at the bending part between the second sub-circuit board and the first sub-circuit board, and the second sub-circuit board can be close to the first sub-circuit board without the aid of a fixing component, and the joint between the light-emitting element near the bending part and the first sub-circuit board will not be broken. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the appearance of a fingerprint recognition module with peripheral light emission according to the first embodiment of the utility model;

[0022] Figure 2 for Figure 1 A schematic cross-sectional view of a fingerprint recognition module with peripheral light emission along line AA according to the first embodiment of the present invention;

[0023] Figure 3 It is a bottom view of the flexible printed circuit board of the fingerprint recognition module with peripheral light emission according to the first embodiment of the utility model when it is flattened;

[0024] Figure 4 A bottom view of a deformed flexible printed circuit board with a peripheral light-emitting fingerprint recognition module according to the first embodiment of the utility model when flattened;

[0025] Figure 5 is a cross-sectional schematic diagram of a deformation of the fingerprint recognition module with peripheral light emission according to the first embodiment of the utility model;

[0026] Figure 6 is a schematic diagram of the appearance of a fingerprint recognition module with peripheral light emission according to a second embodiment of the utility model;

[0027] Figure 7 for Figure 6 A schematic cross-sectional view of a fingerprint recognition module with peripheral light emission along line BB according to a second embodiment of the present invention;

[0028] Figure 8 It is a bottom view of a first flexible circuit board and a second flexible circuit board of a fingerprint recognition module with peripheral light emission according to a second embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to more clearly illustrate the utility model, the utility model is further described below in conjunction with preferred embodiments and drawings. Similar components in the drawings are represented by the same reference numerals. Those skilled in the art should understand that the content described below is illustrative rather than restrictive, and should not be used to limit the scope of protection of the utility model.

[0030] See also Figure 1 , Figure 2 and Figure 3 , the drawings schematically depict a fingerprint recognition module 1 with peripheral light emission according to a first embodiment of the present invention. Figure 1 FIG. 1 is a schematic diagram of the appearance of a fingerprint recognition module 1 with peripheral light emission according to the first embodiment of the present invention. Figure 2 for Figure 1 FIG. 1 is a schematic cross-sectional view of a fingerprint recognition module 1 with peripheral light emission along line AA according to the first embodiment of the present invention. Figure 3 FIG. 1 is a bottom view of the flexible printed circuit board 14 of the fingerprint recognition module 1 with peripheral light emission according to the first embodiment of the present invention when it is flattened.

[0031] like Figure 1 and Figure 2 As shown, the fingerprint recognition module 1 with peripheral light emission according to the first embodiment of the present invention comprises a supporting base 10 , a tubular light guide element 12 , a flexible printed circuit board 14 , a fingerprint recognition element 16 and a plurality of light emitting elements 18 .

[0032] The support base 10 has a receiving space 100 . The receiving space 100 of the support base 10 has an opening 102 , a first bottom 104 , an inner sidewall 106 , and a through notch 108 formed on the first bottom 104 .

[0033] The tubular light guide element 12 has a top 120 and a second bottom 122. The periphery 124 of the tubular light guide element 12 matches the inner sidewall 106 of the receiving space 100 of the support base 10. The tubular light guide element 12 is placed in the receiving space 100 of the support base 10, and the periphery 124 of the tubular light guide element 12 is adjacent to (or in contact with) the inner sidewall 106 of the receiving space 100 of the support base 10.

[0034] In a specific embodiment, the tubular light guide element 12 can be made of acrylic, silicone, thermoplastic polyurethane (TPU) or other commercial light guide polymer materials.

[0035] like Figure 2 and Figure 3 As shown, the flexible circuit board 14 includes a first sub-circuit board 140, a second sub-circuit board 142 connected to the first sub-circuit board 140, a third sub-circuit board 144 connected to the second sub-circuit board 142, and a fourth sub-circuit board 146 connected to the third sub-circuit board 144. The fingerprint recognition element 16 is electrically connected to the first upper surface 1400 of the first sub-circuit board 140. A plurality of light-emitting elements 18 are electrically connected to the first lower surface 1402 of the first sub-circuit board 140. The plurality of light-emitting elements 18 electrically connected to the first sub-circuit board 140 are also shown. Figure 3 middle.

[0036] In a specific embodiment, the plurality of light emitting elements 18 may be light emitting diode elements or organic light emitting diode elements, but the present invention is not limited thereto.

[0037] The fingerprint recognition element 16, the flexible circuit board 14 and the plurality of light emitting elements 18 are placed in the tubular light guide element 12. The fingerprint recognition element 16 is located at the top 120 of the tubular light guide element 12. The plurality of light emitting elements 18 are close to the second bottom 122 of the tubular light guide element 12. The second sub-circuit board 142 is bent until the second lower surface 1422 of the second sub-circuit board 142 is close to the first lower surface 1402 of the first sub-circuit board 140. The third sub-circuit board 144 is bent and passes through the through notch 108 of the accommodating space 100 of the support seat 10. The fourth sub-circuit board 146 is bent and placed outside the support seat 10. Each light emitting element 18 is driven to emit its own light from the second bottom 122 of the tubular light guide element 12 into the tubular light guide element 12, and then guided to be emitted from the top 120 of the tubular light guide element 12. It should be emphasized that the turning radius of the bending portion between the second sub-circuit board 142 and the first sub-circuit board 140 is small, and the second sub-circuit board 142 can be bent to the second lower surface 1422 of the second sub-circuit board 142 close to the first lower surface 1402 of the first sub-circuit board 140 without the aid of a fixing member. In a specific embodiment, the second lower surface 1422 of the second sub-circuit board 142 can be attached to the first lower surface 1402 of the first sub-circuit board 140. Obviously, the spacing between the plurality of light-emitting elements 18 and the first bottom 104 of the accommodating space 100 of the support base 10 is small, and even the plurality of light-emitting elements 18 can reach the first bottom 104 of the accommodating space 100 of the support base 10. In this way, compared with the fingerprint recognition module with peripheral light emission of the prior art, the fingerprint recognition module 1 with peripheral light emission according to the first embodiment of the present invention is thinner, which is conducive to being applied to thin electronic devices. Furthermore, the fingerprint recognition module 1 with peripheral light emission according to the first embodiment of the present invention adopts a tubular light guide element 12 with a simple shape, and the overall manufacturing cost is low.

[0038] Likewise Figure 1 and Figure 2 As shown, the fingerprint recognition module 1 with peripheral light emission according to the first embodiment of the present invention further comprises a transparent protective cover 19. The transparent protective cover 19 is disposed at the opening 102 of the accommodating space 100 of the supporting base 10 to cover the top 120 of the tubular light guide element 12 and the fingerprint recognition element 16.

[0039] In a specific embodiment, the transparent protective cover 19 can be made of transparent materials such as glass and acrylic.

[0040] In a specific embodiment, if Figure 3As shown, the first width of the first sub-circuit board 140 is greater than the second width of the second sub-circuit board 142. The second width of the second sub-circuit board 142 is greater than the third width of the third sub-circuit board 144. Thus, the turning radius of the bending portion between the second sub-circuit board 142 and the first sub-circuit board 140 can be further reduced.

[0041] See also Figure 4 and Figure 5 , the drawings schematically depict a variation of the fingerprint recognition module 1 with peripheral light emission according to the first embodiment of the present invention. Figure 4 It is a bottom view of the deformed flexible circuit board 14 of the fingerprint recognition module 1 with peripheral light emission according to the first embodiment of the present invention when it is flattened. Figure 5 is a cross-sectional schematic diagram of a deformation of the fingerprint recognition module 1 with peripheral light emission according to the first embodiment of the utility model, Figure 5 The section lines of the sections shown are the same as Figure 1 The AA line is shown.

[0042] like Figure 4 and Figure 5 As shown in FIG. 1 , according to a variation of the fingerprint recognition module 1 with peripheral light emission according to the first embodiment of the present invention, the second sub-circuit board 142 is connected to the predetermined edge 1404 of the first sub-circuit board 140. The first sub-circuit board 140 has two extensions 1406. The two extensions 1406 extend from the predetermined edge 1404 of the first sub-circuit board 140 and are respectively located on both sides of the second sub-circuit board 142. A plurality of light emitting elements 18 electrically connected to the first sub-circuit board 140 are also shown in FIG. Figure 4 In. Figure 4 As shown, two light emitting elements 18 among the plurality of light emitting elements 18 are electrically connected to the two extension portions 1406 respectively. Figure 5 In the embodiment, the bending portion between the second sub-circuit board 142 and the first sub-circuit board 140 is away from the tubular light guide element 12 and closer to the through-cut 108 of the receiving space 100 of the support base 10. Thus, the bending portion between the second sub-circuit board 142 and the first sub-circuit board 140 will not affect the two light-emitting elements 18 electrically connected to the two extension portions 1406. Figure 5 and Figure 2 The elements and components with the same number marks have the same or similar structures and functions, and will not be described in detail here.

[0043] In a specific embodiment, if Figure 3 and Figure 4 As shown, the plurality of light emitting elements 18 are respectively located at the plurality of corners of the first sub-circuit board 140 , or the plurality of light emitting elements 18 are arranged adjacent to the plurality of corners of the first sub-circuit board 140 .

[0044] See also Figure 6 , Figure 7 and Figure 8 , the drawings schematically depict a fingerprint recognition module 2 with peripheral light emission according to a second embodiment of the present invention. Figure 6 The second embodiment of the fingerprint recognition module 2 with peripheral light emission is shown in FIG. Figure 7 for Figure 6 A schematic cross-sectional view of a fingerprint recognition module 2 with peripheral light emission along line BB is shown in FIG. Figure 8 FIG. 1 is a bottom view of the first flexible printed circuit board 24 and the second flexible printed circuit board 28 of the fingerprint recognition module 2 with peripheral light emission according to the second embodiment of the present invention when they are flattened.

[0045] like Figure 6 , Figure 7 and Figure 8 As shown, the fingerprint recognition module 2 with peripheral light emission according to the second embodiment of the present invention comprises a supporting base 20 , a tubular light guide element 22 , a first flexible printed circuit board 24 , a fingerprint recognition element 26 , a plurality of light emitting elements 27 and a second flexible printed circuit board 28 .

[0046] The support base 20 has a receiving space 200 . The receiving space 200 of the support base 20 has an opening 202 , a first bottom 204 , an inner sidewall 206 , and a through notch 208 formed on the first bottom 204 .

[0047] The tubular light guide element 22 has a top 220 and a second bottom 222. The periphery 224 of the tubular light guide element 22 matches the inner sidewall 206 of the receiving space 200 of the support base 20. The tubular light guide element 22 is placed in the receiving space 200 of the support base 20, and the periphery 224 of the tubular light guide element 22 is adjacent to the inner sidewall 206 of the receiving space 200 of the support base 20.

[0048] In a specific embodiment, the tubular light guide element 22 can be made of acrylic, silicone resin, thermoplastic polyurethane (TPU) or other commercial light guide polymer materials.

[0049] The fingerprint recognition element 26 is electrically bonded to the upper surface 2400 of the first flexible printed circuit 24. The plurality of light emitting elements 27 are electrically bonded to the lower surface 2402 of the first flexible printed circuit 24. The plurality of light emitting elements 27 electrically bonded to the lower surface 2402 of the first flexible printed circuit 24 are also shown in FIG. Figure 8 The end of the second flexible printed circuit 28 is electrically connected to or electrically bonded to the lower surface 2402 of the first flexible printed circuit 24. Figure 7 In the embodiment, the end of the second flexible printed circuit board 28 is electrically bonded to the lower surface 2402 of the first flexible printed circuit board 24 .

[0050] In a specific embodiment, the plurality of light emitting elements 27 may be light emitting diode elements or organic light emitting diode elements, but the present invention is not limited thereto.

[0051] The fingerprint recognition element 26, the first flexible printed circuit board 24, the plurality of light emitting elements 27 and the second flexible printed circuit board 28 are placed in the tubular light guide element 22. The fingerprint recognition element 26 is located at the top 220 of the tubular light guide element 22. The plurality of light emitting elements 27 are close to the second bottom 222 of the tubular light guide element 22. The second flexible printed circuit board 28 passes through the through notch 208 of the accommodating space 200 of the support seat 20 and is then placed outside the support seat 20. Each light emitting element 27 is driven to emit its own light from the second bottom 222 of the tubular light guide element 22 into the tubular light guide element 22, and then is guided to be emitted from the top 220 of the tubular light guide element 22. Obviously, the distance between the plurality of light emitting elements 27 and the first bottom 204 of the accommodating space 200 of the support seat 20 is small, and the plurality of light emitting elements 27 can even reach the first bottom 204 of the accommodating space 200 of the support seat 20. Thus, compared with the prior art fingerprint recognition module with peripheral light emission, the fingerprint recognition module with peripheral light emission according to the second embodiment of the present invention is thinner, which is convenient for application in thin electronic devices. In addition, the fingerprint recognition module with peripheral light emission according to the second embodiment of the present invention uses a tubular light guide element 22 with a simple shape, and the overall manufacturing cost is low.

[0052] Likewise Figure 6 and Figure 7 As shown, the fingerprint recognition module 2 with peripheral light emission according to the second embodiment of the present invention further comprises a transparent protective cover 29. The transparent protective cover 29 is disposed at the opening 202 of the accommodating space 200 of the supporting base 20 to cover the top 220 of the tubular light guide element 22 and the fingerprint recognition element 26.

[0053] In a specific embodiment, the transparent protection cover 29 can be made of transparent materials such as glass and acrylic.

[0054] In a specific embodiment, if Figure 8 As shown, the first width of the first flexible printed circuit board 24 is greater than the second width of the second flexible printed circuit board 28 .

[0055] In a specific embodiment, if Figure 8 As shown, the plurality of light emitting elements 27 are respectively located at the plurality of corners of the first flexible circuit board 24 , or the plurality of light emitting elements 27 are disposed adjacent to the plurality of corners of the first flexible circuit board 24 .

[0056] In summary, the utility model provides a fingerprint recognition module with peripheral light emission, which is relatively thin and is convenient for application in thin electronic devices. The fingerprint recognition module with peripheral light emission according to the utility model adopts a tubular light-guiding element with a simple shape, and the overall manufacturing cost is low. The fingerprint recognition module with peripheral light emission according to the utility model has a very small turning radius at the bending part between the second sub-circuit board and the first sub-circuit board, and the second sub-circuit board can be close to the first sub-circuit board without the aid of a fixing component, and the joint between the light-emitting element near the bending part and the first sub-circuit board will not be broken.

[0057] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A fingerprint recognition module with peripheral light emission, characterized in that: The fingerprint recognition module with peripheral light emission includes: The bearing seat has a receiving space, wherein the receiving space has an opening, a first bottom, an inner side wall, and a through notch formed on the first bottom; A tubular light guide element having a top and a second bottom, wherein the periphery of the tubular light guide element matches the inner side wall of the accommodation space, the tubular light guide element is placed in the accommodation space, and the periphery of the tubular light guide element is adjacent to the inner side wall of the accommodation space; The flexible circuit board comprises a first sub-circuit board, a second sub-circuit board connected to the first sub-circuit board, a third sub-circuit board connected to the second sub-circuit board, and a fourth sub-circuit board connected to the third sub-circuit board; A fingerprint recognition element is electrically connected to the first upper surface of the first sub-circuit board; and A plurality of light emitting elements are electrically connected to the first lower surface of the first sub-circuit board. Among them, the fingerprint recognition element, the flexible circuit board and the multiple light-emitting elements are placed in the tubular light guide element, the fingerprint recognition element is located at the top of the tubular light guide element, the multiple light-emitting elements are close to the second bottom of the tubular light guide element, the second sub-circuit board is bent until the second lower surface of the second sub-circuit board is close to the first lower surface of the first sub-circuit board, the third sub-circuit board is bent and passes through the through gap, the fourth sub-circuit board is bent and placed outside the supporting seat, and each light-emitting element is driven to emit its own light from the second bottom of the tubular light guide element into the tubular light guide element and then guided to be emitted from the top of the tubular light guide element.

2. The fingerprint recognition module with peripheral light emission as claimed in claim 1, characterized in that: The fingerprint recognition module with peripheral light emission also includes: A transparent protective cover is arranged at the opening of the accommodating space to cover the top of the tubular light guide element and the fingerprint identification element.

3. The fingerprint recognition module with peripheral light emission as claimed in claim 1, characterized in that: The first width of the first sub-circuit board is greater than the second width of the second sub-circuit board, and the second width of the second sub-circuit board is greater than the third width of the third sub-circuit board.

4. The fingerprint recognition module with peripheral light emission as claimed in claim 3, characterized in that: The second sub-circuit board is connected to a predetermined edge of the first sub-circuit board. The first sub-circuit board has two extension parts. The two extension parts extend from the predetermined edge of the first sub-circuit board and are respectively located at two sides of the second sub-circuit board.

5. The fingerprint recognition module with peripheral light emission as claimed in claim 4, characterized in that: Two light emitting elements among the plurality of light emitting elements are electrically connected to the two extending portions respectively.

6. The fingerprint recognition module with peripheral light emission as claimed in claim 3, characterized in that: The plurality of light emitting elements are respectively adjacent to a plurality of corners of the first sub-circuit board.

7. A fingerprint recognition module with peripheral light emission, characterized in that: The fingerprint recognition module with peripheral light emission includes: The bearing seat has a receiving space, wherein the receiving space has an opening, a first bottom, an inner side wall, and a through notch formed on the first bottom; A tubular light guide element having a top and a second bottom, wherein the periphery of the tubular light guide element matches the inner side wall of the accommodation space, the tubular light guide element is placed in the accommodation space, and the periphery of the tubular light guide element is adjacent to the inner side wall of the accommodation space; The first flexible printed circuit board; A fingerprint recognition element is electrically connected to the upper surface of the first flexible printed circuit board; A plurality of light-emitting elements are electrically connected to the lower surface of the first flexible circuit board; as well as a second flexible circuit board, wherein the end of the second flexible circuit board is electrically connected or electrically bonded to the lower surface of the first flexible circuit board, The fingerprint recognition element, the first flexible circuit board, the plurality of light-emitting elements and the second flexible circuit board are placed in the tubular light guide element, the fingerprint recognition element is located at the top of the tubular light guide element, the plurality of light-emitting elements are close to the second bottom of the tubular light guide element, the second flexible circuit board passes through the through notch and is then placed outside the supporting seat, and each light-emitting element is driven to emit its own light from the second bottom of the tubular light guide element into the tubular light guide element and then guided to be emitted from the top of the tubular light guide element.

8. The fingerprint recognition module with peripheral light emission as claimed in claim 7, characterized in that: The fingerprint recognition module with peripheral light emission also includes: A transparent protective cover is arranged at the opening of the accommodating space to cover the top of the tubular light guide element and the fingerprint identification element.

9. The fingerprint recognition module with peripheral light emission as claimed in claim 7, characterized in that: The first width of the first flexible circuit board is greater than the second width of the second flexible circuit board.

10. The fingerprint recognition module with peripheral light emission as claimed in claim 7, characterized in that: The plurality of light emitting elements are respectively adjacent to a plurality of corners of the first flexible circuit board.

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