Anti-offset positioning structure of under-screen fingerprint module

The anti-offset positioning structure, composed of a support plate, connecting rod, and electric push rod, solves the problem of inaccurate recognition caused by offset in under-display fingerprint modules, achieving stable and flexible positioning and installation.

CN223966914UActive Publication Date: 2026-03-03SHENZHEN TIANFUTAI ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-16
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing under-display fingerprint modules are prone to inaccurate recognition due to misalignment, and existing anti-misalignment positioning structures are not convenient for installation and positioning according to the size of the module.

Method used

An anti-offset positioning structure is adopted, which includes a support plate, connecting rod, moving plate, and small electric push rod. The small electric push rod drives the moving plate to move the positioning plate, and the positioning plate is fixed in place by combining the slot of the fingerprint recognition module.

Benefits of technology

It effectively prevents fingerprint module displacement, improves recognition accuracy and stability, and can flexibly position the module according to its size.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of under-screen fingerprint module positioning, in particular to an anti-offset positioning structure of an under-screen fingerprint module, which comprises two support plates and a fixed plate, a connecting rod is fixedly connected between the two support plates, a movable plate is slidably connected to the outer surface of the connecting rod, and a small electric push rod is fixedly connected to the lower surface of the movable plate. The output end of the small electric push rod is rotationally connected with the upper surface of the fixing plate, the upper surface of the fixing plate is fixedly connected with a fixing shaft, the outer surface of the fixing shaft is rotationally connected with a sector plate, the upper surface of the supporting plate is fixedly connected with a bottom plate, the lower surface of the bottom plate is fixedly connected with a connecting shaft, and the outer surface of the connecting shaft is rotationally connected with a rotating rod. And the other end of the rotating rod is rotationally connected with the upper surface of the moving plate. According to the utility model, under the driving of the small electric push rod, the movable plate can drive the positioning plate to move, and the fingerprint identification module is fixed in the mounting ring, so that the position of the fingerprint module can be prevented from deviating.
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Description

Technical Field

[0001] This utility model relates to the field of under-display fingerprint module positioning technology, specifically to an anti-offset positioning structure for under-display fingerprint modules. Background Technology

[0002] An in-display fingerprint module is a module that integrates fingerprint recognition technology under the display screen, commonly used in smartphones, tablets, and other devices. Compared to traditional fingerprint sensors, the advantage of an in-display fingerprint module is that it eliminates the need for a separate physical fingerprint recognition button, resulting in a cleaner design while maintaining efficient fingerprint unlocking functionality. The anti-offset positioning structure of an in-display fingerprint module refers to a structure or mechanism designed to ensure the accuracy and stability of fingerprint recognition, preventing the fingerprint module from failing to correctly recognize fingerprints due to offset during actual use.

[0003] In the past, under-display fingerprint modules were generally installed directly inside electronic devices. Over time, they were prone to shifting. Furthermore, most anti-shift positioning structures were not suitable for installation and positioning according to the size of the fingerprint recognition module, and their effectiveness was relatively limited. Therefore, an anti-shift positioning structure for under-display fingerprint modules was proposed to address these shortcomings.

[0004] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an anti-offset positioning structure for under-display fingerprint modules, solving the current problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-offset positioning structure for an under-display fingerprint module, comprising two support plates and a fixed plate. A connecting rod is fixedly connected between the two support plates. A movable plate is slidably connected to the outer surface of the connecting rod. A small electric push rod is fixedly connected to the lower surface of the movable plate. The output end of the small electric push rod is rotatably connected to the upper surface of the fixed plate. A fixed shaft is fixedly connected to the upper surface of the fixed plate. A fan-shaped plate is rotatably connected to the outer surface of the fixed shaft. A base plate is fixedly connected to the upper surface of the support plates. A connecting shaft is also fixedly connected to the lower surface of the base plate. A rotating rod is rotatably connected to the outer surface of the connecting shaft. The other end of the rotating rod is rotatably connected to the upper surface of the movable plate. An L-shaped connecting plate is fixedly connected to the upper surface of the movable plate. A positioning plate is fixedly connected to the upper surface of the L-shaped connecting plate.

[0007] As a preferred technical solution of this utility model, an installation ring is fixedly connected to the upper surface of the base plate, a fingerprint recognition module is provided inside the installation ring, and a card slot is opened inside the fingerprint recognition module, and the inside of the card slot is engaged with the positioning plate.

[0008] As a preferred embodiment of this utility model, two support blocks are fixedly connected to the upper surface of the base plate, and a limiting rod is fixedly connected between the two support blocks. The outer surface of the limiting rod is slidably connected to the interior of the L-shaped connecting plate.

[0009] As a preferred embodiment of this utility model, a spring is sleeved on the outer surface of the limiting rod, and the two ends of the spring are fixedly connected to two L-shaped connecting plates.

[0010] As a preferred embodiment of this utility model, a plurality of mounting blocks are fixedly connected to the upper surface of the fixing plate, and the interior of each mounting block is fixedly connected to the outer surface of the connecting rod.

[0011] As a preferred embodiment of this utility model, the other end of the sector plate is rotatably connected to the outer surface of the connecting shaft.

[0012] As a preferred embodiment of this utility model, the outer surface of the L-shaped connecting plate is slidably connected to the inside of the base plate, and the inside of the base plate is provided with a sliding groove to facilitate the sliding of the L-shaped connecting plate.

[0013] Compared with the prior art, this utility model provides an anti-displacement positioning structure for under-display fingerprint modules, which has the following beneficial effects:

[0014] 1. The anti-offset positioning structure of the under-display fingerprint module is equipped with a small electric push rod. Driven by the small electric push rod, the moving plate can move the positioning plate to fix the fingerprint recognition module inside the mounting ring, which can prevent the fingerprint module from being offset.

[0015] Second, the anti-offset positioning structure of this under-display fingerprint module can be installed and positioned according to the size of the fingerprint recognition module by moving the positioning plate, which improves the efficiency of use and facilitates its widespread use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the movable plate of this utility model;

[0019] Figure 4This is a schematic diagram of the positioning structure of the fingerprint recognition module of this utility model.

[0020] In the diagram: 1. Support plate; 2. Connecting rod; 3. Moving plate; 4. Small electric push rod; 5. Fixed plate; 6. Fixed shaft; 7. Fan-shaped plate; 8. Connecting shaft; 9. Rotating rod; 10. L-shaped connecting plate; 11. Positioning plate; 12. Mounting ring; 13. Fingerprint recognition module; 14. Card slot; 15. Base plate; 16. Support block; 17. Limiting rod; 18. Spring; 19. Mounting block. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] like Figures 1-4 As shown, this utility model provides a technical solution: an anti-offset positioning structure for an under-display fingerprint module, including two support plates 1 and a fixed plate 5. A connecting rod 2 is fixedly connected between the two support plates 1. A movable plate 3 is slidably connected to the outer surface of the connecting rod 2. A small electric push rod 4 is fixedly connected to the lower surface of the movable plate 3. The output end of the small electric push rod 4 is rotatably connected to the upper surface of the fixed plate 5. A fixed shaft 6 is fixedly connected to the upper surface of the fixed plate 5. A fan-shaped plate 7 is rotatably connected to the outer surface of the fixed shaft 6. A base plate 15 is fixedly connected to the upper surface of the support plate 1. A connecting shaft 8 is also fixedly connected to the lower surface of the base plate 15. A rotating rod 9 is rotatably connected to the outer surface of the connecting shaft 8. The other end of the rotating rod 9 is rotatably connected to the upper surface of the movable plate 3. An L-shaped connecting plate 10 is fixedly connected to the upper surface of the movable plate 3. A positioning plate 11 is fixedly connected to the upper surface of the L-shaped connecting plate 10. The other end of the fan-shaped plate 7 is rotatably connected to the outer surface of the connecting shaft 8.

[0025] Multiple mounting blocks 19 are fixedly connected to the upper surface of the fixing plate 5, and the interior of each mounting block 19 is fixedly connected to the outer surface of the connecting rod 2.

[0026] In this embodiment, the fingerprint recognition module 13 is placed inside the mounting ring 12. Then, the small electric push rod 4 is activated. The output end of the small electric push rod 4 rotates on the upper surface of the fixing plate 5, thereby pulling the moving plate 3 to slide on the outer surface of the connecting rod 2. At the same time, the rotating rod 9 rotates, causing the fan-shaped plate 7 to rotate as well. This causes the two moving plates 3 to slide together, while driving the L-shaped connecting plate 10 and the positioning plate 11 to move. The positioning plate 11 moves into the slot 14 to fix the fingerprint recognition module 13. The fixing plate 5 fixes the fixing shaft 6 and the mounting block 19. The fixing shaft 6 stabilizes the rotation of the fan-shaped plate 7, the mounting block 19 fixes the connecting rod 2 to the upper surface, and the connecting shaft 8 stabilizes the rotation of the fan-shaped plate 7 and the rotating rod 9.

[0027] Example 2

[0028] like Figures 1-4 As shown, a mounting ring 12 is fixedly connected to the upper surface of the base plate 15. A fingerprint recognition module 13 is disposed inside the mounting ring 12. A slot 14 is opened inside the fingerprint recognition module 13. The slot 14 is engaged with the positioning plate 11. Two support blocks 16 are fixedly connected to the upper surface of the base plate 15. A limit rod 17 is fixedly connected between the two support blocks 16. The outer surface of the limit rod 17 is slidably connected to the inside of the L-shaped connecting plate 10. A spring 18 is sleeved on the outer surface of the limit rod 17. The two ends of the spring 18 are fixedly connected to the two L-shaped connecting plates 10. The outer surface of the L-shaped connecting plate 10 is slidably connected to the inside of the base plate 15. A sliding groove is opened inside the base plate 15 to facilitate the sliding of the L-shaped connecting plate 10.

[0029] In this embodiment, the base plate 15 is fixed by the support plate 1, the support block 16 is fixed by the base plate 15, the limiting rod 17 is fixed by the support block 16, the limiting rod 17 facilitates the stabilization of the sliding trajectory of the L-shaped connecting plate 10, and the distance between the two L-shaped connecting plates 10 is maintained by the spring 18.

[0030] The working principle of this embodiment is as follows: The fingerprint recognition module 13 is placed inside the mounting ring 12. Then, the small electric push rod 4 is activated. The output end of the small electric push rod 4 rotates on the upper surface of the fixed plate 5, thereby pulling the moving plate 3 to slide on the outer surface of the connecting rod 2. At the same time, the rotating rod 9 rotates, causing the fan-shaped plate 7 to rotate as well. This causes the two moving plates 3 to slide together, while driving the L-shaped connecting plate 10 and the positioning plate 11 to move. The positioning plate 11 moves into the slot 14 to fix the fingerprint recognition module 13. The support plate 1 fixes the base plate 15, the base plate 15 fixes the support block 16, and the support block 16 fixes the limiting rod 17. The limiting rod 17 helps to stabilize the sliding trajectory of the L-shaped connecting plate 10. The spring 18 maintains the distance between the two L-shaped connecting plates 10. The fixed plate 5 fixes the fixing shaft 6 and the mounting block 19. The fixing shaft 6 stabilizes the rotation of the fan-shaped plate 7, the mounting block 19 fixes the connecting rod 2 to the upper surface, and the connecting shaft 8 stabilizes the rotation of the fan-shaped plate 7 and the rotating rod 9.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An anti-displacement positioning structure for an under-display fingerprint module, characterized in that: It includes two support plates (1) and a fixed plate (5). A connecting rod (2) is fixedly connected between the two support plates (1). A movable plate (3) is slidably connected to the outer surface of the connecting rod (2). A small electric push rod (4) is fixedly connected to the lower surface of the movable plate (3). The output end of the small electric push rod (4) is rotatably connected to the upper surface of the fixed plate (5). A fixed shaft (6) is fixedly connected to the upper surface of the fixed plate (5). A fan-shaped plate (7) is rotatably connected to the outer surface of the fixed shaft (6). A base plate (15) is fixedly connected to the upper surface of the support plate (1). A connecting shaft (8) is also fixedly connected to the lower surface of the base plate (15). A rotating rod (9) is rotatably connected to the outer surface of the connecting shaft (8). The other end of the rotating rod (9) is rotatably connected to the upper surface of the movable plate (3). An L-shaped connecting plate (10) is fixedly connected to the upper surface of the movable plate (3). A positioning plate (11) is fixedly connected to the upper surface of the L-shaped connecting plate (10).

2. The anti-offset positioning structure of the under-display fingerprint module according to claim 1, characterized in that: An mounting ring (12) is fixedly connected to the upper surface of the base plate (15). A fingerprint recognition module (13) is provided inside the mounting ring (12). A card slot (14) is provided inside the fingerprint recognition module (13). The inside of the card slot (14) is engaged with the positioning plate (11).

3. The anti-offset positioning structure of the under-display fingerprint module according to claim 1, characterized in that: Two support blocks (16) are fixedly connected to the upper surface of the base plate (15), and a limit rod (17) is fixedly connected between the two support blocks (16). The outer surface of the limit rod (17) is slidably connected to the inside of the L-shaped connecting plate (10).

4. The anti-offset positioning structure of the under-display fingerprint module according to claim 3, characterized in that: A spring (18) is sleeved on the outer surface of the limiting rod (17), and the two ends of the spring (18) are fixedly connected to two L-shaped connecting plates (10).

5. The anti-offset positioning structure of the under-display fingerprint module according to claim 1, characterized in that: The upper surface of the fixing plate (5) is fixedly connected with a plurality of mounting blocks (19), and the interior of each mounting block (19) is fixedly connected to the outer surface of the connecting rod (2).

6. The anti-offset positioning structure of the under-display fingerprint module according to claim 1, characterized in that: The other end of the sector plate (7) is rotatably connected to the outer surface of the connecting shaft (8).

7. The anti-offset positioning structure of the under-display fingerprint module according to claim 1, characterized in that: The outer surface of the L-shaped connecting plate (10) is slidably connected to the inside of the base plate (15), and the inside of the base plate (15) is provided with a sliding groove to facilitate the sliding of the L-shaped connecting plate (10).