Optical glass lower fingerprint module

Abstract

The utility model discloses an optical glass lower fingerprint module, which comprises a reinforcing sheet, a circuit substrate and an optical fingerprint chip, the circuit substrate is arranged above the reinforcing sheet, the optical fingerprint chip is fixedly arranged on the upper surface of the circuit substrate, a reinforcing layer is arranged above the circuit substrate, a light shielding layer is arranged above the reinforcing layer, and the optical fingerprint chip is fixedly arranged on the upper surface of the light shielding layer. And a buffer pad is arranged above the shading layer. According to the optical glass lower fingerprint module provided by the utility model, after the reinforcing sheet, the circuit substrate, the optical fingerprint chip, the reinforcing layer, the shading layer and the buffer pad are stacked together, the rotating piece is rotated to enable the extension rod of the rotating piece to rotate to the upper part of the buffer pad, and then the locking piece is rotated to enable the front end of the locking piece to be rotatably embedded in the clamping groove of the rotating piece; and at the moment, the positioning block ascends under the pushing action of the spring, so that the upper end of the positioning block is embedded in the positioning hole of the rotating piece, and the assembled and stacked fingerprint modules can be kept in a fixed state after being assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of fingerprint recognition, and particularly relates to an under-optical-glass fingerprint module. Background Art

[0002] At present, fingerprint recognition mobile phones under the screen are deeply loved by consumers. Major mobile phone manufacturers have invested a lot of money and manpower in fingerprint recognition mobile phones under the screen according to the market. Currently, most of them are based on optical fingerprint modules to achieve fingerprint recognition under the screen.

[0003] However, there are some deficiencies in the current fingerprint modules. For example, the application number is 202010087001.X, which discloses "an optical fingerprint unlocking module, a display screen and an electronic device, including a circuit board, an optical fingerprint chip, a reinforcing layer and a light-shielding layer. The optical fingerprint chip and the reinforcing layer are both arranged on the upper surface of the circuit board. The reinforcing layer is provided with a first through hole that cooperates with the optical fingerprint chip. The optical fingerprint chip is located in the first through hole and exposed from the first through hole. The light-shielding layer is arranged above the optical fingerprint chip. The light-shielding layer is provided with a second through hole that matches the optical fingerprint chip. The second through hole is smaller than the optical fingerprint chip and the light-shielding layer blocks the cutting track located at the periphery of the optical fingerprint chip. By setting the light-shielding layer to block the cutting track located at the periphery of the optical fingerprint chip, the present invention prevents the cutting track from reflecting light when encountering strong light, avoids affecting the resolution of the optical fingerprint chip, and improves the fingerprint recognition accuracy and response speed", when assembling the fingerprint module, it is necessary to use the cooperation of multiple fixing screws to assemble and fix the fingerprint module together, which is rather troublesome. Content of the Utility Model

[0004] The main purpose of the utility model is to provide an under-optical-glass fingerprint module, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] An under-optical-glass fingerprint module includes a reinforcing sheet, a circuit board and an optical fingerprint chip. A circuit board is arranged above the reinforcing sheet. An optical fingerprint chip is fixedly installed on the upper surface of the circuit board. A reinforcing layer is arranged above the circuit board. A light-shielding layer is arranged above the reinforcing layer. A buffer pad is arranged above the light-shielding layer. Rotating parts are movably installed on both sides of the reinforcing sheet. Locking parts are movably installed on the upper surfaces of both sides of the buffer pad.

[0007] Preferably, mounting blocks are fixedly installed on the front and rear surfaces of the reinforcing sheet and close to both sides, and support seats are fixedly installed on both side surfaces of the reinforcing sheet.

[0008] Preferably, the rotating member includes a rotating column, a rotating block and an extension rod. The rotating block is fixedly installed on the lower surface of the rotating column. The extension rod is fixedly installed on the surface of the rotating column at the upper end. A card slot is opened at the front end of the extension rod, and a positioning hole is opened on the upper surface of the front end of the extension rod.

[0009] Preferably, the rotating block is embedded in the support seat, and the rotating member is movably connected to the reinforcing sheet through the rotating block.

[0010] Preferably, a sleeve hole is opened inside the rear end of the locking member, a receiving groove is opened inside the front end of the locking member, a spring is arranged inside the receiving groove, and a positioning block is arranged above the spring inside the receiving groove.

[0011] Preferably, sleeve rods are fixedly installed on the upper surfaces of both sides of the buffer pad, and the rear end of the locking member is movably sleeved on the sleeve rods.

[0012] Preferably, the front end of the locking member is embedded in the card slot, the upper end of the positioning block is embedded in the positioning hole, through holes are opened on the surfaces of the reinforcing layer, the light-shielding layer and the buffer pad, and the optical fingerprint chip is embedded in the through holes.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, by arranging the reinforcing sheet, the rotating member, the buffer pad and the locking member to cooperate with each other, after the reinforcing sheet, the circuit board, the optical fingerprint chip, the reinforcing layer, the light-shielding layer and the buffer pad are stacked together, the rotating member is rotated so that the extension rod of the rotating member rotates above the buffer pad, and then the locking member is rotated so that the front end of the locking member is rotationally embedded in the card slot of the rotating member. During the rotation of the locking member, the positioning block is pressed into the receiving groove. When the front end of the locking member rotates into the card slot, the positioning block rises under the pushing action of the spring, so that the upper end of the positioning block is embedded in the positioning hole of the rotating member. In this way, the assembled fingerprint module can be kept in the assembled fixed state, and thus the assembly and fixation of the fingerprint module can be completed quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural diagram of a fingerprint module under an optical glass of the utility model;

[0016] Figure 2 is an installation schematic diagram of a fingerprint module under an optical glass of the utility model;

[0017] Figure 3 is a structural diagram of a rotating member of a fingerprint module under an optical glass of the utility model;

[0018] Figure 4 is a partial sectional view of a locking member of a fingerprint module under an optical glass of the utility model.

[0019] In the figure: 1. Reinforcing piece; 101. Mounting block; 102. Support base; 2. Rotating part; 201. Rotating column; 202. Extension rod; 203. Positioning hole; 204. Card slot; 205. Rotating block; 3. Circuit board; 4. Optical fingerprint chip; 5. Reinforcing layer; 6. Light-shielding layer; 7. Buffer pad; 701. Sleeve rod; 8. Locking part; 801. Sleeve hole; 802. Storage groove; 803. Spring; 804. Positioning block. Specific implementation mode

[0020] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation modes.

[0021] As Figures 1-4 shown, an optical fingerprint module under an optical glass includes a reinforcing piece 1, a circuit board 3 and an optical fingerprint chip 4. A circuit board 3 is provided above the reinforcing piece 1, an optical fingerprint chip 4 is fixedly installed on the upper surface of the circuit board 3, a reinforcing layer 5 is provided above the circuit board 3, a light-shielding layer 6 is provided above the reinforcing layer 5, a buffer pad 7 is provided above the light-shielding layer 6, and rotating parts 2 are movably installed on both sides of the reinforcing piece 1, and locking parts 8 are movably installed on the upper surfaces of both sides of the buffer pad 7.

[0022] Mounting blocks 101 are fixedly installed on the front surface and the rear surface of the reinforcing piece 1 and close to both sides, and support bases 102 are fixedly installed on both side surfaces of the reinforcing piece 1; the rotating part 2 includes a rotating column 201, a rotating block 205 and an extension rod 202. A rotating block 205 is fixedly installed on the lower surface of the rotating column 201, an extension rod 202 is fixedly installed on the surface of the rotating column 201 and at the upper end, a card slot 204 is opened at the front end of the extension rod 202, a positioning hole 203 is opened on the upper surface of the front end of the extension rod 202, and the cooperation between the positioning hole 203 and the positioning block 804 can connect the locking part 8 and the rotating part 2 together; the rotating block 205 is embedded in the support base 102, and the rotating part 2 is movably connected to the reinforcing piece 1 through the rotating block 205; a sleeve hole 801 is opened inside the rear end of the locking part 8, a storage groove 802 is opened inside the front end of the locking part 8, a spring 803 is provided inside the storage groove 802, and a positioning block 804 is provided above the spring 803 inside the storage groove 802. The spring 803 has an upward pushing force on the positioning block 804; sleeve rods 701 are fixedly installed on the upper surfaces of both sides of the buffer pad 7, and the rear end of the locking part 8 is movably sleeved on the sleeve rods 701; the front end of the locking part 8 is embedded in the card slot 204, the upper end of the positioning block 804 is embedded in the positioning hole 203, through holes are opened on the surfaces of the reinforcing layer 5, the light-shielding layer 6 and the buffer pad 7, and the optical fingerprint chip 4 is embedded in the through holes.

[0023] It should be noted that the present utility model is an optical glass under-fingerprint module. When in use, after the reinforcing sheet 1, the circuit board 3, the optical fingerprint chip 4, the reinforcing layer 5, the light-shielding layer 6 and the buffer pad 7 are stacked together, the rotating member 2 is rotated so that the extension rod 202 of the rotating member 2 rotates above the buffer pad 7, and then the locking member 8 is rotated so that the front end of the locking member 8 is rotationally embedded in the card slot 204 of the rotating member 2. During the rotation of the locking member 8, the positioning block 804 is pressed into the receiving groove 802. When the front end of the locking member 8 rotates into the card slot 204, the positioning block 804 rises under the pushing action of the spring 803, so that the upper end of the positioning block 804 is embedded in the positioning hole 203 of the rotating member 2. In this way, the assembled and stacked fingerprint module can be kept in the assembled fixed state, thus quickly completing the assembly and fixation of the fingerprint module.

[0024] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An optical glass under-fingerprint module, characterized in that: It includes a reinforcing sheet (1), a circuit board (3), and an optical fingerprint chip (4). Above the reinforcing sheet (1), there is a circuit board (3). On the upper surface of the circuit board (3), an optical fingerprint chip (4) is fixedly installed. Above the circuit board (3), there is a reinforcing layer (5). Above the reinforcing layer (5), there is a light-shielding layer (6). Above the light-shielding layer (6), there is a buffer pad (7). On both sides of the reinforcing sheet (1), there are rotatable members (2) movably installed. On the upper surfaces of both sides of the buffer pad (7), there are locking members (8) movably installed.

2. The optical glass under-fingerprint module according to claim 1, wherein: On the front and rear surfaces of the reinforcing sheet (1) and near both sides, there are mounting blocks (101) fixedly installed. On both side surfaces of the reinforcing sheet (1), there are support seats (102) fixedly installed.

3. The optical glass under-fingerprint module according to claim 2, wherein: The rotatable member (2) includes a rotating column (201), a rotating block (205), and an extension rod (202). On the lower surface of the rotating column (201), there is a rotating block (205) fixedly installed. On the surface of the rotating column (201) and at the upper end, there is an extension rod (202) fixedly installed. At the front end of the extension rod (202), there is a card slot (204). On the upper surface of the front end of the extension rod (202), there is a positioning hole (203).

4. The optical glass under-fingerprint module according to claim 3, wherein: The rotating block (205) is embedded in the support seat (102). The rotatable member (2) is movably connected to the reinforcing sheet (1) through the rotating block (205).

5. The optical glass under-fingerprint module according to claim 4, wherein: Inside the rear end of the locking member (8), there is a sleeve hole (801). Inside the front end of the locking member (8), there is a receiving groove (802). Inside the receiving groove (802), there is a spring (803). Inside the receiving groove (802) and above the spring (803), there is a positioning block (804).

6. The optical glass under-fingerprint module according to claim 5, wherein: On the upper surfaces of both sides of the buffer pad (7), there are sleeve rods (701) fixedly installed. The rear end of the locking member (8) is movably sleeved on the sleeve rod (701).

7. An optical glass under-fingerprint module according to claim 6, characterized in that: The front end of the locking member (8) is embedded in the card slot (204). The upper end of the positioning block (804) is embedded in the positioning hole (203). Through holes are opened on the surfaces of the reinforcing layer (5), the light-shielding layer (6), and the buffer pad (7). The optical fingerprint chip (4) is embedded in the through holes.

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