A fingerprint sensor with a high-definition display device

Abstract

This utility model relates to the field of fingerprint sensor technology for display devices, specifically a fingerprint sensor for a high-definition display device. It includes a display screen, a flexible piezoelectric film fixedly installed on one-third of one side of the display screen, a sensor fixedly installed on the side of the flexible piezoelectric film away from the display screen, a screen backlight module fixedly installed on the other side of the sensor, and a fixed base plate fixedly installed on the side of the screen backlight module away from the screen backlight module. The fixed base plate and the display screen are snapped together on screen fixing slots opened on locking components. This utility model supports simultaneous multi-finger recognition and can be triggered from any position without requiring the user to remember a fixed area. It also ensures stable fingerprint collection after the sensor adheres to the film without occupying most of the screen area, completely resolving the traditional contradiction of fingerprint recognition components obstructing high-definition displays, thus balancing functionality and image quality.

Description

Technical Field

[0001] This utility model relates to a fingerprint sensor with a high-definition image display device, belonging to the technical field of fingerprint sensor for display devices. Background Technology

[0002] Currently, fingerprint sensors with display functions are widely used in smart terminals, security equipment and other fields, and users' dual demands for "high-definition display" and "accurate fingerprint recognition" are increasing day by day.

[0003] Existing products often attach the fingerprint sensor and related components directly to the center or edge of the display screen, which can easily obstruct the screen display area, resulting in damage to the integrity of the display image and making it difficult to balance high-definition image quality with the compatibility of recognition function. Utility Model Content

[0004] The purpose of this invention is to provide a fingerprint sensor with a high-definition display device. The base plate and the display screen are fastened to the screen fixing groove on the locking component. The flexible piezoelectric film is precisely aligned with one-third of the display screen, supporting simultaneous recognition of multiple fingers and triggering at any position.

[0005] To achieve the above objectives, the main technical solution adopted by this utility model includes: a fingerprint sensor with a high-definition image display device, comprising a display screen, a flexible piezoelectric film fixedly installed at one-third of one side of the display screen, a sensor fixedly installed on the side of the flexible piezoelectric film away from the display screen, a screen backlight module fixedly installed on the other side of the sensor, a fixed base plate fixedly installed on the side of the screen backlight module away from the sensor, and the fixed base plate being snapped onto a screen fixing groove opened on a locking member at one end of the display screen.

[0006] Preferably, a rotary knob is rotatably connected to the locking member, and a rotating gear is fixedly connected to one end of the rotary knob.

[0007] Preferably, a first rack is meshed with one side of the rotating gear, the first rack is slidably connected to the locking member, and a second locking head is fixedly connected to one end of the first rack, the second locking head being snapped onto the fixed frame.

[0008] Preferably, a second rack is meshed with the other side of the rotating gear, and the second rack is installed perpendicular to the first rack. The second rack is slidably mounted on the locking member, and a first locking head is fixedly mounted on one end of the second rack. The first locking head is snapped onto the fixed frame.

[0009] Preferably, the display screen and the fixed base plate are provided with fixing members on both sides away from the locking member, and the fixing members are slidably installed on one end of the first connecting rod.

[0010] Preferably, one end of the fixing member is fixedly connected to a locking double-sided rack, and locking pins are slidably provided on both sides of the locking double-sided rack.

[0011] Preferably, a spring is fitted onto the locking pin, and the other end of the spring is fixedly connected to a hollow bolt. The hollow bolt is fixedly installed on the first connecting rod, and the hollow bolt is used for sliding fixation between the locking pin and the locking double-sided rack.

[0012] Preferably, a locking nut is threaded onto the hollow bolt, and the locking nut is internally fitted to the other end of the locking pin.

[0013] Preferably, a second connecting rod is slidably installed between the two first connecting rods.

[0014] Preferably, a screen assembly lifting rope is fixedly connected between the two first connecting rods, and the screen assembly lifting rope is located above the second connecting rod.

[0015] This utility model has at least the following beneficial effects: This invention supports simultaneous multi-finger recognition and triggering at any location, eliminating the need for users to memorize fixed areas. It also ensures stable fingerprint collection after the sensor is attached to the film, without occupying most of the screen area, thus completely resolving the traditional contradiction of fingerprint recognition components obstructing high-definition displays and balancing functionality and image quality.

[0016] Meanwhile, the core components adopt a simplified process of layer-by-layer stacking and buckle fixing, eliminating the need for complicated bolt tightening or welding operations. The screen fixing slot can be quickly aligned with the buckle, which greatly reduces the time required to fix the core components compared to traditional multi-step assembly. Attached Figure Description

[0017] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0018] In the attached diagram: Figure 1 This is a schematic diagram of the overall three-dimensional structure of a fingerprint sensor with a high-definition image display device in an embodiment of this utility model; Figure 2 This is a schematic diagram of the structure distribution of a fingerprint sensor display screen with a high-definition image display device in an embodiment of this utility model; Figure 3This is a schematic diagram showing the distribution of a fingerprint sensor assembly and locking device with a high-definition display device in an embodiment of this utility model. Figure 4 This is a schematic diagram of the internal distribution of a fingerprint sensor assembly and locking device with a high-definition display device in an embodiment of this utility model.

[0019] Figure 5 This is a partial enlarged schematic diagram of a fingerprint sensor locking device with a high-definition display device according to an embodiment of the present invention.

[0020] In the diagram, 1. Display screen; 2. Fixing frame; 3. Locking component; 4. Flexible piezoelectric film; 5. Sensor; 6. Screen backlight module; 7. Fixing base plate; 8. Rotary knob; 9. First locking head; 10. Second locking head; 11. Screen fixing groove; 12. Rotating gear; 13. First rack; 14. Second rack; 15. Fixing component; 16. Locking double-sided rack; 17. First connecting rod; 18. Screen assembly lifting rope; 19. Second connecting rod; 20. Locking nut; 21. Hollow bolt; 22. Spring; 23. Locking pin. Detailed Implementation

[0021] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0022] Examples, such as Figures 1-5 As shown, a fingerprint sensor with a high-definition display device includes a display screen 1. A flexible piezoelectric film 4 is fixedly installed on one-third of one side of the display screen 1. A sensor 5 is fixedly installed on the side of the flexible piezoelectric film 4 away from the display screen 1. A screen backlight module 6 is fixedly installed on the other side of the sensor 5. A fixing base plate 7 is fixedly installed on the side of the screen backlight module 6 away from the sensor 5. The fixing base plate 7 and the display screen 1 are fastened to the screen fixing groove 11 opened on the locking member 3. The flexible piezoelectric film 4 is precisely aligned with one-third of one side of the display screen 1, supporting multi-finger simultaneous recognition and triggering at any position. There is no need for the user to remember the fixed area. At the same time, it ensures that the sensor 5 can stably collect fingerprints after being attached to the film, without occupying most of the screen area. It completely solves the traditional contradiction of "fingerprint recognition components blocking high-definition display". It balances functionality and image quality. The core components adopt a simplified process of layer-by-layer stacking and buckle fixing, without complicated bolt tightening or welding operations. The screen fixing groove 11 can be quickly aligned with the buckle. Compared with the traditional multi-step assembly, the fixing time of the core components is greatly shortened.

[0023] Furthermore, a rotary knob 8 is rotatably connected to the locking component 3, and a rotating gear 12 is fixedly connected to one end of the rotary knob 8; a first rack 13 is meshed with one side of the rotating gear 12, and the first rack 13 is slidably connected to the locking component 3; a second locking head 10 is fixedly connected to one end of the first rack 13, and the second locking head 10 is snapped onto the fixed frame 2; a second rack 14 is meshed with the other side of the rotating gear 12, and the second rack 14 is installed perpendicular to the first rack 13. The second rack 14 is slidably installed on the locking component 3, and a first locking head 9 is fixedly installed to one end of the second rack 14, and the first locking head 9 is snapped onto the fixed frame 2; when the rotary knob 8 on the locking component 3 is manually rotated, the rotary knob 8 synchronously drives the rotation of the gear fixedly connected to it at one end. Gear 12 rotates in the same direction around the rotation axis of locking component 3, completing the initial input of locking power. When gear 12 rotates, it synchronously meshes with the two side components, driving the first rack 13 to slide along the preset slide rail of locking component 3 on one side, and driving the second rack 14 to slide along the corresponding slide rail of locking component 3 on the other side. The sliding direction of the second rack 14 is perpendicular to the first rack 13, realizing single power input and bidirectional vertical transmission. During the sliding process of the first rack 13, the second locking head 10 fixed at one end moves synchronously with the rack until it is engaged in the corresponding slot of the fixed frame 2. At the same time, the sliding of the second rack 14 drives the first locking head 9 at one end to move synchronously, and finally it is also engaged in the matching slot of the fixed frame 2, completing the bidirectional vertical locking and fixing.

[0024] Furthermore, fixing members 15 are provided on both sides of the other end of the display screen 1 and the fixed base plate 7 away from the locking member 3. The fixing members 15 are slidably installed on one end of the first connecting rod 17. A locking double-sided rack 16 is fixedly connected to one end of the fixing member 15. Locking pins 23 are slidably provided on both sides of the locking double-sided rack 16. A spring 22 is sleeved on the locking pin 23. The other end of the spring 22 is fixedly connected to the hollow bolt 21. The hollow bolt 21 is fixedly installed on the first connecting rod 17. A locking nut 20 is threadedly connected to the hollow bolt 21. The locking nut 20 is internally fitted to the other end of the locking pin 23. Align the two sides of the other end of the display screen 1 and the fixed base plate 7 away from the locking member 3 with the fixing members 15 slidably installed on one end of the first connecting rod 17, and push the fixing members 15 to slide along the first connecting rod 17 until the fixing members 15 are precisely fitted with both sides of the component. After initial positioning is completed and the fastener 15 is attached to the assembly, the locking double-sided rack 16, which is fixedly connected to one end, moves synchronously with the fastener 15 until it moves to the locking position corresponding to the hollow bolt 21 on the first connecting rod 17, preparing for subsequent locking. At this time, the locking pins 23 on both sides of the locking double-sided rack 16 automatically slide towards the locking double-sided rack 16 under the elastic force of the spring 22 they are fitted on, and finally snap onto the corresponding teeth of the locking double-sided rack 16, achieving initial elastic locking. Rotate the locking nut 20 threaded on the hollow bolt 21, so that the locking nut 20 moves along the hollow bolt 21 towards the locking pin 23, until the inside of the locking nut 20 is completely attached to the other end of the locking pin 23. Continue to fine-tune the locking nut 20, squeeze the locking pin 23 to further lock the teeth, forming a double locking effect of "elastic pre-locking plus rigid reinforcement".

[0025] Furthermore, a second connecting rod 19 is slidably installed between the two first connecting rods 17; a screen assembly lifting rope 18 is fixedly connected between the two first connecting rods 17, and the screen assembly lifting rope 18 is located above the second connecting rod 19; the second connecting rod 19 is slidably installed between the two first connecting rods 17, and according to the assembly length of the display screen 1 and the fixed base plate 7, the second connecting rod 19 is pushed to slide along the first connecting rods 17 to adjust to a position that matches the fixed structures at both ends, forming a stable frame support, while ensuring the parallelism of the two first connecting rods 17 to avoid force deviation when the assembly is fixed. After assembly, the screen assembly lifting rope 18 is in a standby state; if it is necessary to disassemble the display screen 1 and the fixed base plate 7 assembly, pull the screen assembly lifting rope 18 upward, and the lifting rope will drive the two first connecting rods 17 to be subjected to force simultaneously, thereby pulling the assembly out of the installation position, realizing convenient disassembly and assembly. During assembly, the lifting rope can also be used to assist in adjusting the position of the assembly and improve alignment efficiency.

[0026] In this embodiment, as Figures 1-5 As shown in the figure, the principle of a fingerprint sensor with a high-definition display device provided in this embodiment is as follows: The flexible piezoelectric film 4 is precisely fixed to one-third of the side of the display screen 1. Then, a sensor 5 is installed on the side of the flexible piezoelectric film 4 away from the display screen 1. Next, the screen backlight module 6 is fixed to the outside of the sensor 5. Finally, a fixing base plate 7 is installed on the side of the screen backlight module 6 away from the display screen 1, forming a complete stacked assembly of "display screen 1 fixing base plate 7". The two sides of one end of the stacked assembly are aligned with the screen fixing groove 11 on the locking member 3, and directly snapped into the groove using the buckle, completing the initial fixing of one end of the assembly. The rotary knob 8 on the locking member 3 is manually rotated to move one side... The fixed-end rotating gear 12 rotates in the same direction around the rotating shaft of the locking member 3, realizing the initial input of locking power. The rotating gear 12 synchronously meshes and drives the two side components. One side drives the first rack 13 to slide along the preset slide rail of the locking member 3, and the other side drives the second rack 14 to slide perpendicularly to the first rack 13 along the corresponding slide rail, achieving "single power, bidirectional vertical transmission". When the first rack 13 slides, it drives the second locking head 10 at one end to engage with the corresponding slot of the fixed frame 2. At the same time, the sliding of the second rack 14 drives the first locking head 9 at one end to engage with the matching slot of the fixed frame 2, completing the double locking at one end of the component. To reinforce the vertical locking, move the component away from the locking member 3 on both sides and align it with the fixing member 15 that is slidably mounted on one end of the first connecting rod 17. Push the fixing member 15 along the first connecting rod 17 until it is precisely fitted with both sides of the component, completing the initial positioning of the other end. After the fixing member 15 is fitted, the locking double-sided rack 16 fixed at one end moves together until it is aligned with the locking position of the hollow bolt 21 on the first connecting rod 17. The locking pins 23 on both sides of the locking double-sided rack 16 automatically slide towards the rack under the elastic force of the spring 22 it is fitted with, and finally snap into the locking pin. The double-sided rack 16 achieves elastic pre-locking on the corresponding teeth. Rotate the locking nut 20 on the hollow bolt 21 to move it along the bolt towards the locking pin 23 until the inside of the nut is completely in contact with the other end of the locking pin 23. Continue to fine-tune the nut to squeeze the locking pin 23 to further tighten the teeth, forming a dual effect of "elastic pre-locking + rigid reinforcement". Slide the second connecting rod 19 between the two first connecting rods 17. Push the second connecting rod 19 to adjust its position according to the length of the component to form a stable frame support, while ensuring the parallelism of the two first connecting rods 17 to avoid the component from shifting under force.

[0027] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0028] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0029] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A fingerprint sensor with a high-definition image display device, comprising a display screen (1), characterized in that: A flexible piezoelectric film (4) is fixedly installed at one-third of one side of the display screen (1). A sensor (5) is fixedly installed on the side of the flexible piezoelectric film (4) away from the display screen (1). A screen backlight module (6) is fixedly installed on the other side of the sensor (5). A fixing base plate (7) is fixedly installed on the side of the screen backlight module (6) away from the sensor (5). The fixing base plate (7) is snapped onto the screen fixing groove (11) opened on the locking member (3) at one end of the display screen (1).

2. The fingerprint sensor with a high-definition image display device according to claim 1, characterized in that: A rotary knob (8) is rotatably connected to the locking member (3), and a rotating gear (12) is fixedly connected to one end of the rotary knob (8).

3. A fingerprint sensor with a high-definition image display device according to claim 2, characterized in that: The rotating gear (12) is meshed with a first rack (13) on one side. The first rack (13) is slidably connected to the locking member (3). A second locking head (10) is fixedly connected to one end of the first rack (13). The second locking head (10) is snapped onto the fixed frame (2).

4. A fingerprint sensor with a high-definition image display device according to claim 3, characterized in that: The rotating gear (12) is meshed with a second rack (14) on the other side, and the second rack (14) is installed perpendicular to the first rack (13). The second rack (14) is slidably installed on the locking member (3). A first locking head (9) is fixedly installed at one end of the second rack (14), and the first locking head (9) is snapped onto the fixed frame (2).

5. A fingerprint sensor with a high-definition image display device according to claim 1, characterized in that: The display screen (1) and the fixed base plate (7) are provided with fixing members (15) on both sides away from the locking member (3), and the fixing members (15) are slidably installed on one end of the first connecting rod (17).

6. A fingerprint sensor with a high-definition image display device according to claim 5, characterized in that: One end of the fastener (15) is fixedly connected to a locking double-sided rack (16), and locking pins (23) are slidably provided on both sides of the locking double-sided rack (16).

7. A fingerprint sensor with a high-definition image display device according to claim 6, characterized in that: A spring (22) is fitted on the locking pin (23), and the other end of the spring (22) is fixedly connected to the hollow bolt (21). The hollow bolt (21) is fixedly installed on the first connecting rod (17). The hollow bolt (21) is used for the sliding fixation of the locking pin (23) and the locking double-sided rack (16).

8. A fingerprint sensor with a high-definition image display device according to claim 7, characterized in that: The hollow bolt (21) is threaded with a locking nut (20), and the locking nut (20) is internally fitted to the other end of the locking pin (23).

9. A fingerprint sensor with a high-definition image display device according to claim 8, characterized in that: A second connecting rod (19) is slidably installed between the two first connecting rods (17).

10. A fingerprint sensor with a high-definition image display device according to claim 9, characterized in that: A screen assembly lifting rope (18) is fixedly connected between the two first connecting rods (17), and the screen assembly lifting rope (18) is located above the second connecting rod (19).

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