CN111259681A - Touch display module with flexible fingerprint identification function - Google Patents

Abstract

The invention discloses a touch display module with flexible fingerprint identification function, comprising a display screen, a light guide film and a shielding film. One side of the light guide film is glued with the display screen, and the other side is provided with a flexible fingerprint identification module. One side of the flexible fingerprint identification module is glued with the light guide film, and the other side is glued with the shielding film. The beneficial effects of the invention are as follows: on the premise of simultaneously providing three functions of optional special-shaped belt bending touch, display and fingerprint identification, accurate and effective fingerprint identification operation can be carried out, the use is simple, and it is suitable for the safety of various electronic and industrial communication products. Convenient.

Description

A touch display module with flexible fingerprint recognition function

technical field

The present application belongs to the field of touch technology, and in particular, relates to a touch display module with a flexible fingerprint recognition function.

Background technique

With the development of technology, touch technology is widely used in production and life. As an important part of touch technology, fingerprint recognition technology not only enhances the security of the device, but also effectively improves the operation efficiency of the device. Traditional fingerprint recognition modules are all It is based on display modules. With the development of display module technology, curved display modules and flexible display modules have gradually begun to be put into the market, and the demand for touch display modules with flexible fingerprint recognition is also increasing.

SUMMARY OF THE INVENTION

In view of this, the technical problem to be solved by the present application is to provide a touch display module with flexible fingerprint recognition function, which can perform full-screen line drawing editing and multi-point unlocking operations on different flat displays.

In order to solve the above technical problems, the present application discloses a touch display module with a flexible fingerprint recognition function, which includes a display screen, a light guide film and a shielding film. One side of the light guide film is glued to the display screen, and the other side is glued to the display screen. A flexible fingerprint identification module is provided, one side of the flexible fingerprint identification module is glued with the light guide film, and the other side is glued with the shielding film.

More preferably: the flexible fingerprint identification module includes a substrate, a processing chip and an algorithm chip, the substrate is provided with a trigger chip and a sensing electrode, and both the substrate and the processing chip are electrically connected to the algorithm chip.

More preferably: the substrate is connected to the algorithm chip FOG through a flexible cable, and the processing chip and the algorithm chip are connected to the algorithm chip through a flexible cable FOF.

More preferably, the display screen is provided with a flexible circuit board, a plug-in port and a mainboard port, the processing chip is provided with a flexible circuit board, and the flexible circuit board is electrically connected with the plug-in port.

More preferably: the glue used for gluing the display screen, the light guide film, the shielding film and the flexible fingerprint identification module is OCA optical glue, and the thickness of the optical glue is 0.025mm.

More preferably: the display screen is further provided with a camera, and the camera is electrically connected to the flexible circuit board.

More preferably: the display screen includes a liquid crystal, a driving device and a flexible plastic.

More preferably: the substrate is a flexible electrode layer with a thickness of 0.125mm.

Compared with the prior art, the present application can obtain the following technical effects:

1) Under the premise of providing optional special-shaped belt bending touch, display and fingerprint recognition, the full-screen fingerprint recognition can be unlocked, and the multi-point selection of different fingerprint encryption of folders on the display screen can realize multi-layer encryption. Insurance control.

2) Easy to use, suitable for various electronic and industrial communication products, safe and convenient.

Of course, implementing any product of the present application does not necessarily need to simultaneously achieve all the above-mentioned technical effects.

Description of drawings

The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the attached image:

1 is a cross-sectional view of the overall structure of an embodiment of the present application;

2 is a schematic structural diagram of a flexible fingerprint identification module according to an embodiment of the present application;

3 is a rear view of the overall structure of the embodiment of the present application;

FIG. 4 is a front view of the overall structure of the embodiment of the present application.

Description of marks in the figure: 1. Display screen, 2. Light guide film, 3. Shielding film, 4. Flexible fingerprint recognition module, 11. Flexible circuit board, 12. Plug-in port, 13. Mainboard port, 14. Camera, 41. Substrate, 42, Processing chip, 43, Algorithm chip, 44, Trigger chip, 45, Induction electrode, 46, Flexible circuit board.

Detailed ways

The embodiments of the present application will be described in detail below with reference to the accompanying drawings and examples, so as to fully understand and implement the implementation process of how to apply technical means to solve technical problems and achieve technical effects in the present application.

As shown in FIG. 1 to FIG. 4 : a touch display module with a flexible fingerprint recognition function according to an embodiment of the present application includes a display screen 1 , a light guide film 2 and a shielding film 3 , and the display screen 1 is a flexible display screen. It is mainly composed of liquid crystal, driving device and flexible plastic. One side of the light guide film 2 is glued with the display screen 1, and the other side is provided with a flexible fingerprint recognition module 4. One side of the flexible fingerprint recognition module 4 is glued with the light guide film 2. The other side is glued with the shielding film 3. The specific glue used for the bonding between the display screen 1, the light guide film 2, the shielding film 3 and the flexible fingerprint recognition module 4 is OCA optical glue, and the thickness of the optical glue is 0.025mm, the shielding film 3 is an opaque film, and its main function is to effectively prevent external light from interfering with the light in the module.

The flexible fingerprint recognition module 4 includes a substrate 41 , a processing chip 42 and an algorithm chip 43 , a trigger chip 44 and a sensing electrode 45 are arranged on the substrate 41 , a package structure is arranged outside the processing chip 42 , and neither the algorithm chip 43 nor the trigger chip 44 is outside. In the package, both the substrate 41 and the processing chip 42 are electrically connected to the algorithm chip 43 . Specifically, the substrate 41 is bonded to the algorithm chip 43 through a flexible cable, and the processing chip 42 and the algorithm chip 43 are connected to the algorithm chip 43 through a flexible cable FOF bonding.

In order to facilitate installation, the display screen 1 is provided with a flexible circuit board 11 , a plug-in port 12 and a main board port 13 , and a flexible circuit board 46 is provided on the processing chip 42 of the flexible fingerprint identification module 4 . The pull-out port 12 is electrically connected, that is, the flexible fingerprint identification module 4 is detachably connected to the display screen 1 through the flexible circuit board 46 , the main board port 13 is used to connect the touch display module with the main board of the device, and the display screen 1 is also provided. There is a camera 14, and the camera 14 is electrically connected to the flexible circuit board 11; the substrate 41 is a flexible electrode layer with a thickness of 0.125 mm.

The working mode of the embodiment of the present application: when the trigger chip 44 senses the change of light, the sensing electrode 45 is triggered to collect the fingerprint data, the sensing electrode 45 sends the collected fingerprint data to the algorithm chip 43 for editing, and the algorithm chip 43 is finished editing Then, the data is transmitted to the processing chip 42, and the processing chip 42 processes the fingerprint data and transmits it to the display screen 1 through the flexible circuit board 46, and the display screen 1 realizes the corresponding display operation.

The foregoing description shows and describes several preferred embodiments of the present invention, but as previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein, and should not be construed as an exclusion of other embodiments, but may be used in various and other combinations, modifications and environments, and can be modified within the scope of the inventive concepts described herein, from the above teachings or from skill or knowledge in the relevant art. However, modifications and changes made by those skilled in the art do not depart from the spirit and scope of the present invention, and should all fall within the protection scope of the appended claims of the present invention.

Claims (8)

1. The utility model provides a touch-control display module assembly with flexible fingerprint identification function, includes display screen (1), leaded light membrane (2) and barrier film (3), its characterized in that: one side and display screen (1) of leaded light membrane (2) splice, and the another side is equipped with flexible fingerprint identification module (4), the one side and leaded light membrane (2) of flexible fingerprint identification module (4) splice, and the another side splices with shielding film (3).

2. The touch display module with the flexible fingerprint recognition function of claim 1, wherein: the flexible fingerprint identification module (4) comprises a substrate (41), a processing chip (42) and an algorithm chip (43), wherein the substrate (41) is provided with a trigger chip (44) and an induction electrode (45), and the substrate (41) and the processing chip (42) are electrically connected with the algorithm chip (43).

3. The touch display module with the flexible fingerprint recognition function of claim 2, wherein: the substrate (41) is connected with the algorithm chip (43) FOG in a bonding mode through a flexible flat cable, and the processing chip (42) is connected with the algorithm chip (43) in a bonding mode through a flexible flat cable FOF.

4. The touch display module with the flexible fingerprint recognition function of claim 3, wherein: the display screen (1) is provided with a flexible circuit board (11), a plug port (12) and a mainboard port (13), the processing chip (42) is provided with a flexible circuit board (46), and the flexible circuit board (46) is electrically connected with the plug port (12).

5. The touch display module with the flexible fingerprint recognition function of claim 1, wherein: the glue that splices between display screen (1), leaded light membrane (2), barrier film (3) and flexible fingerprint identification module (4) and use is OCA optical cement, and the thickness of optical cement is 0.025 mm.

6. The touch display module with the flexible fingerprint recognition function of claim 4, wherein: still be equipped with camera (14) on display screen (1), camera (14) are connected with flexible line way board (11) electricity.

7. The touch display module with the flexible fingerprint recognition function of claim 4, wherein: the display screen (1) comprises liquid crystal, a driving device and flexible plastic.

8. The touch display module with the flexible fingerprint recognition function of claim 2, wherein: the substrate (41) is a flexible electrode layer with the thickness of 0.125 mm.

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