CN110431014B

CN110431014B - Display screen and electronic device assembling method, display screen assembly and terminal

Info

Publication number: CN110431014B
Application number: CN201780088611.8A
Authority: CN
Inventors: 张文涛; 王风平; 成英华
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-11-30
Filing date: 2017-11-30
Publication date: 2021-09-14
Anticipated expiration: 2037-11-30
Also published as: WO2019104647A1; CN110431014A

Abstract

The application provides an assembling method of a display screen and an electronic device, which comprises the following steps: providing the display screen; providing the electronic device, wherein a frame-shaped gum area is arranged on the surface of the electronic device; attaching the gum area of the electronic device to the inner surface of the display screen, so that the electronic device, the display screen and the gum area jointly form a closed air layer; and placing the display screen attached with the electronic device into a closed space with the pressure intensity higher than that of the air layer so as to activate the back glue in the back glue area. According to the assembling method of the display screen and the electronic device, the uniform acting force can be generated to activate the back glue in the back glue area, and therefore damage to the screen in the processing process is reduced.

Description

Display screen and electronic device assembling method, display screen assembly and terminal

Technical Field

The present application relates to the field of terminals, and more particularly, to an assembling method of a display screen and an electronic device, a display screen assembly and a terminal.

Background

As technology develops, more and more electronic devices need to be assembled with the display screen. Taking a mobile terminal as an example, at present, a user of the mobile terminal has an increasingly high requirement on a screen occupation ratio of a display screen, and therefore, a traditional front-mounted key type fingerprint chip needs to be installed below the display screen to form an Under Glass (UG) structure.

Because the display screen has the characteristic of easy damage, the assembly of the electronic device and the display screen has higher requirements on the assembly process between the devices.

Disclosure of Invention

The application provides an assembling method of a display screen and an electronic device, a display screen assembly and a terminal, and provides an assembling process suitable for assembling the electronic device and the display screen.

In a first aspect, a method for assembling a display screen and an electronic device is provided, including: providing the display screen; providing the electronic device, wherein a frame-shaped gum area is arranged on the surface of the electronic device; attaching the gum area of the electronic device to the inner surface of the display screen, so that the electronic device, the display screen and the gum area jointly form a closed air layer; and placing the display screen attached with the electronic device into a closed space with the pressure intensity higher than that of the air layer so as to activate the back glue in the back glue area.

According to the technical scheme, the display screen attached to the electronic device is placed in the closed space with the pressure intensity larger than that of the air layer, and then the pressure intensity difference is formed between the closed space and the air layer. The pressure difference can generate uniform acting force to activate the back glue in the back glue area, so that damage to the display screen can be reduced.

In one possible implementation manner, before the placing the display screen attached with the electronic device into the closed space with the pressure greater than the pressure of the air layer, the method further includes: and applying pre-pressure to the electronic device attached to the inner surface of the display screen.

According to the technical scheme, the pre-pressure is applied to the electronic device, so that the gum area of the electronic device is fully attached to the inner surface of the display screen, and the air layer is ensured to be airtight.

In a possible implementation manner, the magnitude of the pre-pressure is 2-5N.

The pre-pressure is smaller than the mechanical activation pressure, so that the damage to the screen can be reduced.

In a possible implementation manner, the pressure difference between the closed space and the air layer is 3-5 standard atmospheric pressures.

A pressure difference in this range can activate the adhesive in the adhesive-backed area and does not cause damage to the screen.

In one possible implementation, the electronics are located in an operable area of the display screen.

In a possible implementation manner, the electronic device is a fingerprint chip, and a sensing area of the fingerprint chip is located inside a frame shape of the adhesive-backed area.

In one possible implementation, the fingerprint chip is an optical fingerprint chip.

In one possible implementation, the providing the electronic device includes: providing the electronic device body; and arranging a back adhesive on the surface of the electronic device body to form the frame-shaped back adhesive area.

The back glue is arranged on the body of the electronic device, so that the electronic device can be attached to the display screen more conveniently.

In a second aspect, there is provided a display screen assembly comprising: a display screen; electronic device, electronic device's surface is provided with the gum area of frame shape, the gum area with the laminating of the internal surface of display screen, electronic device the display screen with the gum area has formed inclosed air bed jointly. .

In a possible implementation manner, the electronic device is a fingerprint chip, and a sensing area of the fingerprint chip is located inside a frame shape of the adhesive-backed area. .

In a third aspect, a terminal is provided, including: a housing; and the display screen assembly of any possible implementation manner of the second aspect, the display screen assembly being disposed within the housing.

In one possible implementation, the terminal is a mobile terminal.

This application is through setting up the display screen after will assembling in high pressure environment for the pressure in airtight space is greater than air bed pressure, thereby forms the pressure difference. This pressure difference can produce even effort to the gum, and this even effort can reduce to cause the damage to the display screen at the in-process of activation gum.

Drawings

Fig. 1 is a block diagram of a mobile phone according to an embodiment of the present application.

Fig. 2 is a schematic flow chart of a display screen and an electronic device assembling method provided in an embodiment of the present application.

Fig. 3 is a schematic structural diagram of an electronic device provided in an embodiment of the present application.

Fig. 4 is a schematic assembly structure diagram of a display screen and an electronic device according to an embodiment of the present application.

Fig. 5 is a structural diagram of an assembly of an electronic device and a display screen according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a display screen assembly according to an embodiment of the present application.

Fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present application.

Detailed Description

The assembling method of the display screen and the electronic device can be applied to the field of mobile terminals and can also be applied to any other fields needing to assemble the electronic device and the display screen.

The following description will be given by taking a mobile terminal as an example.

The embodiment of the application relates to an assembling method of a display screen and an electronic device, a display screen assembly and a terminal. The mobile terminal may include a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), a Point of Sales (POS), a vehicle-mounted computer, and the like.

Taking a mobile terminal as an example of a mobile phone, fig. 1 is a block diagram illustrating a part of a structure of a mobile phone 100 according to an embodiment of the present application. Referring to fig. 1, a handset 100 includes, among other components, Radio Frequency (RF) circuitry 110, memory 120, other input devices 130, a display 140, sensors 150, audio circuitry 160, an I/O subsystem 170, a processor 180, and a power supply 190. Those skilled in the art will appreciate that the handset configuration shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or may combine certain components, or split certain components, or arranged in different components. Those skilled in the art will appreciate that the display 140 is part of a User Interface (UI) and that the cell phone 100 may include more or fewer User interfaces than shown.

The following describes each component of the mobile phone 100 in detail with reference to fig. 1:

the RF circuit 110 may be used for receiving and transmitting signals during information transmission and reception or during a call, and in particular, receives downlink information of a base station and then processes the received downlink information to the processor 180; in addition, the data for designing uplink is transmitted to the base station. Typically, the RF circuitry includes, but is not limited to, an antenna, at least one Amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the RF circuitry 110 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), and the like.

The memory 120 may be used to store software programs and modules, and the processor 180 executes various functional applications and data processing of the mobile phone 100 by operating the software programs and modules stored in the memory 120. The memory 120 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone 100, and the like. Further, the memory 120 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

Other input devices 130 may be used to receive entered numeric or character information and generate key signal inputs relating to user settings and function controls of the handset 100. In particular, other input devices 130 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, a light mouse (a light mouse is a touch-sensitive surface that does not display visual output, or is an extension of a touch-sensitive surface formed by a touch screen), and the like. The other input devices 130 are connected to other input device controllers 171 of the I/O subsystem 170 and are in signal communication with the processor 180 under the control of the other input device controllers 171.

The display screen 140 may be used to display information entered by or provided to the user as well as various menus of the handset 100 and may also accept user input. The display screen 140 may include a display panel 141 and a touch panel 142. The Display panel 141 may be configured by a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. The touch panel 142, also referred to as a touch screen, a touch sensitive screen, etc., may collect contact or non-contact operations (e.g., operations performed by a user on or near the touch panel 142 using any suitable object or accessory such as a finger or a stylus, and may also include body sensing operations; including single-point control operations, multi-point control operations, etc.) on or near the touch panel 142, and drive the corresponding connection device according to a preset program. Alternatively, the touch panel 142 may include two parts, i.e., a touch detection device and a touch controller. The touch detection device detects the touch direction and gesture of a user, detects signals brought by touch operation and transmits the signals to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into information that can be processed by the processor, sends the information to the processor 180, and receives and executes a command sent by the processor 180. In addition, the touch panel 142 may be implemented by various types such as a resistive type, a capacitive type, an infrared ray, a surface acoustic wave, and the like, and the touch panel 142 may also be implemented by any technology developed in the future. Further, the touch panel 142 may cover the display panel 141. The user can operate on or near the touch panel 142 overlaid on the display panel 141 according to the content displayed on the display panel 141 (the displayed content includes, but is not limited to, a soft keyboard, a virtual mouse, virtual keys, icons, and the like). After the touch panel 142 detects an operation thereon or nearby, it is transmitted to the processor 180 through the I/O subsystem 170 to determine a user input, and then the processor 180 provides a corresponding visual output on the display panel 141 through the I/O subsystem 170 according to the user input. Although in fig. 1, the touch panel 142 and the display panel 141 are two separate components to implement the input and output functions of the mobile phone 100, in some embodiments, the touch panel 142 and the display panel 141 may be integrated to implement the input and output functions of the mobile phone 100.

The handset 100 may also include at least one sensor 150, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display panel 141 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 141 and/or the backlight when the mobile phone 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone 100, further description is omitted here.

Audio circuitry 160, speaker 161, and microphone 162 may provide an audio interface between a user and the handset 100. The audio circuit 160 may transmit the converted signal of the received audio data to the speaker 161, and convert the signal into a sound signal for output by the speaker 161; on the other hand, the microphone 162 converts the collected sound signals into signals, which are received by the audio circuit 160 and converted into audio data, which are output to the RF circuit 108 for transmission to, for example, another cell phone, or to the memory 120 for further processing.

The I/O subsystem 170 controls input and output of external devices, which may include other devices, an input controller 171, a sensor controller 172, and a display controller 173. Optionally, one or more other input control device controllers 171 receive signals from and/or transmit signals to other input devices 130, and other input devices 130 may include physical buttons (push buttons, rocker buttons, etc.), dials, slide switches, joysticks, click wheels, a light mouse (a light mouse is a touch-sensitive surface that does not display visual output, or is an extension of a touch-sensitive surface formed by a touch screen). It is noted that other input control device controllers 171 may be connected to any one or more of the above-described devices. The display controller 173 in the I/O subsystem 170 receives signals from the display screen 140 and/or sends signals to the display screen 140. After the display screen 140 detects the user input, the display controller 173 converts the detected user input into an interaction with the user interface object displayed on the display screen 140, i.e., realizes a human-machine interaction. The sensor controller 172 may receive signals from one or more sensors 150 and/or transmit signals to one or more sensors 150.

The processor 180 is a control center of the mobile phone 100, connects various parts of the entire mobile phone by using various interfaces and lines, and performs various functions of the mobile phone 100 and processes data by operating or executing software programs and/or modules stored in the memory 120 and calling data stored in the memory 120, thereby performing overall monitoring of the mobile phone. Alternatively, processor 180 may include one or more processing units; preferably, the processor 180 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 180.

The handset 100 also includes a power supply 190 (e.g., a battery) for powering the various components, which may preferably be logically connected to the processor 180 via a power management system to manage charging, discharging, and power consumption via the power management system.

Although not shown, the mobile phone 100 may further include a camera module, a bluetooth module, an infrared module, etc., which will not be described herein.

In addition, the handset 100 may also include a fingerprint chip. The fingerprint chip can be, for example, an optical fingerprint chip, or a capacitive fingerprint chip, a radio frequency fingerprint chip, a temperature difference induction type fingerprint chip, an ultrasonic fingerprint chip, and the like.

In the conventional technology, a fingerprint chip is generally designed as a front-mounted fingerprint structure, including a front-mounted key type fingerprint structure and an under glass fingerprint structure.

Leading key-type fingerprint structure need set up a through-hole on the screen apron, then imbeds fingerprint chip wherein. Such a placement of the fingerprint chip at the position of the main (home) key has the following problems: the home key is easy to damage, and the seal between the fingerprint chip and the screen cover plate is not suitable for dust prevention and water prevention. These problems make the cancellation of the home key a trend.

The cancel of the home key means that the screen cover plate does not break the hole. The fingerprint chip is placed below the screen cover plate, so that a front under glass fingerprint structure is generated. The preposed under glass fingerprint structure is mainly a capacitance type fingerprint structure. Glue through specific dielectric constant, assemble the fingerprint module in the below of display screen. Taking a liquid crystal display as an example, the liquid crystal display generally includes a screen cover, a touch layer and a display layer, and the electronic device may be mounted on the inner side of the display, i.e. below the display layer of the display, for example.

With the requirement of users on the screen occupation ratio of the mobile phone, the mobile phone approaches to full screen. The area reserved for fingerprint identification is smaller and smaller, and the fingerprint chip is arranged below the display screen, so that the development trend is towards. How to install the fingerprint chip below the display screen becomes the problem that needs to be solved urgently.

The conventional art provides a bonding-based assembly of electronic devices, which is roughly as follows:

the electronic device is attached to the adherend by a pressure-sensitive adhesive, and then pressure is applied to the electronic device by means of mechanical pressing. Under the combined action of increased pressure and pressing time, the pressure-sensitive adhesive reaches corresponding bonding strength, and finally the pressure-sensitive adhesive is activated.

However, the prepressing process of the assembly mode has requirements on the parallelism of the pressure head, the speed of the pressure head and the uniformity of the pressure. Therefore, in the pre-pressing process, the pressing scene is easily affected by the parallelism of the pressing head, the speed of the pressing head, the uniformity of the pressure and other factors. These factors place relatively high demands on the strength of the adherend.

Considering that the display screen has the characteristic of easy damage, the electronic device and the display screen are assembled by adopting the mode, so that the display screen is easy to damage. Such as the generation of indentations on the surface of the display screen, etc., degrade the performance of the display screen and affect the appearance.

The following describes in detail the method for assembling the display screen and the electronic device, which is provided by the embodiment of the present application, with reference to fig. 2, and can effectively avoid the damage of the display screen caused by the assembling process.

Fig. 2 is a schematic flow chart of a display screen and an electronic device assembling method provided in an embodiment of the present application. The method of FIG. 2 may include steps 210-240, and the steps 210-240 are described in detail below.

In step S210, a display screen is provided.

In step S220, an electronic device is provided, the surface of which is provided with a frame-shaped adhesive-backed region.

The electronic device of the embodiment of the application can be a fingerprint chip, a lens module, an infrared module and the like. Taking an electronic device as an example of a fingerprint chip, the fingerprint chip generally includes a sensing area and an edge area. A conventional fingerprint chip generally includes a substrate, and a sensing area of the chip is located at a middle position of the substrate, and the sensing area is used for recognizing an input signal of a user fingerprint. The edge area of the fingerprint chip is provided with a frame-shaped adhesive-backed area, which is typically arranged at a position outside the sensing area. The arrangement of the gum region avoids the sensing region, thereby ensuring that the sensing function of the sensing region is not affected. The adhesive-backed area in the embodiment of the present application may have any shape, and as long as the area can form a closed area, the frame-shaped adhesive-backed area may be understood. For example, the shape of the adhesive-backed area may be square, circular, oval, diamond, etc., which is not specifically limited in this application.

Fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The adhesive backed area of the electronic device may be used to dispose adhesive backed 310. As can be seen from the above description of the gum area, the shape of the gum may be square, circular, elliptical, or rhombic, which is not specifically limited in this application.

The arrangement mode of the back adhesive can be that the electronic device is provided with the back adhesive before leaving the factory, or the back adhesive can be arranged in the installation process. This is not particularly limited in the embodiments of the present application. As an example, the electronic device is provided with a double-sided tape before shipment, and the release paper is peeled off before bonding. As another example, before the bonding, glue may be applied to the surface of the electronic device, or a double-sided tape may be disposed on the surface of the electronic device, so as to perform the bonding by using the glue or the double-sided tape.

The material of the back adhesive is not particularly limited in the embodiment of the application, and the back adhesive can be any sticky back adhesive. For example, the back adhesive may be rubber, or may be a resin type adhesive.

In step S230, a glue-backed area of an electronic device is attached to an inner surface of a display screen, so that the electronic device, the display screen and the glue-backed area together form a sealed air layer.

As shown in fig. 4, after the electronic device 410 is attached to the inner surface of the display screen 440, a closed air layer 420 is formed by the sidewall of the adhesive 430, the display screen 440, and the inner surface of the electronic device 410. Since the adhesive 430 has viscosity, the air layer 420 between the display screen 440 and the electronic device 410 bonded by the adhesive is sealed, so that the pressure inside the sealed air layer 420 is maintained.

There are various ways of attaching the adhesive-backed area of the electronic device to the inner surface of the display screen, and this is not specifically limited in the embodiment of the present application. As one example, the adhesive-backed area of the electronic device may be manually attached to the inner surface of the display screen in a normal pressure environment. As another example, the adhesive-backed region of the electronic device may also be attached to the inner surface of the display screen by a machine.

In the process of attaching the gum area to the inner surface of the display screen, the air layer is communicated with the outside air pressure. After the bonding, the back adhesive has sealing performance, and the air layer is a closed air layer, and the pressure of the air layer is the same as the external atmospheric pressure. For example, when the bonding is performed under a normal atmospheric pressure, the pressure of the air layer is the normal atmospheric pressure.

In step S240, the display screen with the electronic device attached thereto is placed in a sealed space having a pressure greater than that of the air layer to activate the adhesive in the adhesive-backed region.

There are various ways to implement step S240, and the pressure difference can be implemented by increasing the pressure of the enclosed space. This is not particularly limited in the embodiments of the present application. As an example, a display panel to which an electronic device is attached may be placed in a closed space at normal pressure, and then a gas may be filled in the closed space. The pressure intensity of the closed space filled with the gas is increased, so that the pressure intensity of the closed space is greater than that of the air layer. As another example, the pressure may be increased by compressing the volume of the closed space to be greater than the pressure of the air layer.

As shown in fig. 4, as an example, the electronic device is attached to the inner surface of the display screen in an atmosphere of normal pressure. The pressure intensity of the sealed air layer after the bonding is the same as the external atmospheric pressure, and is 1 standard atmospheric pressure.

And placing the attached display screen assembly in a closed space with the pressure intensity larger than that of the air layer. As one example, the display screen assembly may be placed in an enclosed space having a pressure of 4-6 standard atmospheres. Therefore, the pressure difference is formed between the pressure intensity of the closed space and the pressure intensity of the air layer on the upper surface and the lower surface of the electronic device, and the pressure difference is 3-5 standard atmospheric pressures.

The pressure intensity of the closed space is larger than that of the air layer, so that a pressure intensity difference exists between the pressure intensity of the closed space and the pressure intensity of the air layer. The pressure difference acts on the electronic device and can generate uniform acting force on the back adhesive, so that the back adhesive receives enough bonding external force and finally activates the back adhesive. And the activation is more uniform by adopting an activation mode of a pressure difference method. The screen protection device is not influenced by mechanical pressure activation pressure heads which are not parallel, pressure instability, speed unevenness and the like, and can reduce damage to the screen.

Alternatively, as an embodiment, a pre-stress may be applied to the electronic device attached to the inner surface of the display screen before step S240.

The embodiment of the application can adopt an artificial mode to pre-press the electronic device and can also pre-press the electronic device through mechanical pressure. This is not particularly limited in the embodiments of the present application. As an example, after the electronic device is attached to the inner surface of the display screen, a pre-pressure may be manually applied to the electronic device, so that the back adhesive on the electronic device can be sufficiently attached to the display screen. As another example, after the electronic device is attached to the inner surface of the display screen, the electronic device may be pre-pressed by using a mechanical pre-pressing force, so that the back glue on the electronic device can be sufficiently attached to the display screen.

The back glue is pressed by using the pre-pressure, so that the back glue area of the electronic device can be fully attached to the inner surface of the display screen, a fixed pressure difference between the closed space and the air layer is further ensured, uniform acting force is further generated to activate the back glue in the back glue area, and the indentation caused to the display screen is reduced.

Optionally, as an embodiment, the magnitude of the pre-pressure is 2-5N. The pre-pressure can ensure that the electronic device is fully attached to the display screen, and the pre-pressure is smaller than mechanical activation pressure, so that damage to the screen can be reduced.

Optionally, as an embodiment, the electronic device is located in an operable area of the display screen.

Taking a mobile terminal as an example, the larger the display screen of a mobile phone is, the more the user needs to push the display screen to develop towards full screen. The fingerprint chip needs to be set by turning to the operable area of the display screen. The assembling method can be applied to the operable area of the display screen of the mobile phone, and can reduce damage to the screen.

Fig. 5 and 6 are schematic views of the structure of the display screen assembly. The display screen assembly of the embodiment of the present application may be the display screen assembly obtained by the assembling method described in any of the above embodiments.

As shown in fig. 5, the display screen assembly includes a display screen 520 and electronics 510. The electronics 510 are disposed below the display screen 520.

As an example, as shown in fig. 6. The display screen assembly may include a display screen 640 and electronics 610. The surface of the electronic device 610 is provided with a frame-shaped adhesive-backed region 630. The adhesive-backed region 630 is attached to the inner surface of the display screen 640, and the electronic device 610, the display screen 640 and the adhesive-backed region 630 together form a sealed air layer 620.

The display screen assembly provided by the embodiment of the application adopts a laminating mode to assemble the electronic device and the display screen together, and the processing technology is simple.

The embodiment of the application also provides a terminal. As shown in fig. 7, the terminal may include a housing 710 and a display screen assembly 720 disposed on the housing 710. The display screen assembly 720 includes electronics 730 located below the display screen. The display screen assembly may be the display screen assembly described in any of the embodiments above.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of assembling a display screen and an electronic device, comprising:

providing the display screen;

providing the electronic device, wherein a frame-shaped gum area is arranged on the surface of the electronic device, the electronic device is a fingerprint chip, and a sensing area of the fingerprint chip is positioned in the frame-shaped gum area;

attaching the gum area of the electronic device to the inner surface of the display screen, so that the electronic device, the display screen and the gum area jointly form a closed air layer;

placing the display screen attached with the electronic device into a closed space with the pressure intensity larger than that of the air layer so as to activate the back glue in the back glue area, wherein the pressure intensity difference between the closed space and the air layer is 3-5 standard atmospheric pressures;

before the step of placing the display screen attached with the electronic device in the closed space with the pressure intensity higher than that of the air layer, the method further comprises the following steps:

and applying pre-pressure to the electronic device attached to the inner surface of the display screen.

2. The method according to claim 1, wherein the pre-stress has a magnitude of 2 to 5N.

3. A method as claimed in claim 1 or 2, wherein the electronic device is located in an operable area of the display screen.

4. The method of claim 1 or 2, wherein the fingerprint chip is an optical fingerprint chip.

5. The method of claim 1 or 2, wherein the providing the electronic device comprises:

providing the electronic device body;

and arranging a back adhesive on the surface of the electronic device body to form the frame-shaped back adhesive area.

6. A display screen assembly, comprising:

a display screen;

electronic device, electronic device's surface is provided with the gum region of frame shape, the gum region with the laminating of the internal surface of display screen, electronic device the display screen with the gum region has formed inclosed air bed jointly, the gum in the gum region is through right the laminating is in the display screen internal surface electronic device will laminate after applying the pre-pressure electronic device's display screen is placed pressure and is greater than activate in the airtight space of air bed pressure, airtight space with the pressure difference of air bed is 3 ~ 5 standard atmospheric pressure, electronic device is the fingerprint chip, the sensing area of fingerprint chip is located the inside of the frame shape in gum region.

7. The display screen assembly of claim 6, wherein the electronics are located in an operable area of the display screen.

8. A display screen assembly according to claim 6 or 7, wherein the fingerprint chip is an optical fingerprint chip.

9. A terminal, comprising:

a housing;

a display screen assembly according to any one of claims 6 to 8, disposed within the housing.

10. The terminal of claim 9, wherein the terminal is a mobile terminal.