WO2019028593A1

WO2019028593A1 - Method for assembling screen of portable device, and portable device

Info

Publication number: WO2019028593A1
Application number: PCT/CN2017/096219
Authority: WO
Inventors: 林晓龙; 罗凡; 李银
Original assignee: 华为技术有限公司
Priority date: 2017-08-07
Filing date: 2017-08-07
Publication date: 2019-02-14
Also published as: CN110114744B; CN110114744A

Abstract

A method for assembling a screen of a portable device, comprising: placing a display module (2) and cover glass (1) in a casing (3) (301); and providing an adhesive between side edges of the display module (2) and inner side walls of the casing (3), such that the side edges of the display module (2) and the inner side walls of the casing (3) are bonded (302) by the adhesive. The method is applicable to portable devices such as mobile phones, tablet computers, smart bracelets, smart watches, and laptops. The approaches of back face dispensing and side face bonding minimize the distance from the side edges of the display module (2) to the outer side walls of the casing (3), thereby narrowing the black bezel of a screen, increasing the screen-to-body ratio, improving the use experience of a device, and at the same time, resolving the defect of light leakage of a screen.

Description

Method for assembling portable device screen and portable device

Technical field

The present application relates to the field of electronic devices, and in particular, to a method for assembling a portable device screen and a portable device.

Background technique

At present, the assembly of the screen of the portable device is usually implemented by a dispensing or adhesive solution. The inner side wall of the casing has a paste platform structure, which provides a bonding space for the adhesive, or the bottom of the display module is bonded to the casing, or the cover is covered. The side wall of the panel glass is bonded to the casing, or the two are used together. In the prior art, the structure of the bonding platform on the side wall of the casing restricts the width of the frame of the screen of the portable device, and cannot be narrower, and the screen has a black border. The effect of improving the screen ratio of the screen of the portable device is poor, and the visual effect is poor, and the sidewall of the display module is not directly sealed, which causes a defect of light leakage on the screen of the portable device.

Summary of the invention

The embodiments of the present invention are to solve the defects existing in the prior art.

To achieve the above objective, a first aspect of the embodiments of the present invention provides a method for assembling a screen of a portable device, comprising: placing a display module and a cover glass in a casing; at a side edge of the display module and a casing An adhesive is disposed between the inner side walls to bond the side edges of the display module and the inner side walls of the casing by an adhesive.

Preferably, the display module and the cover glass are disposed in the casing, comprising: fixing the display module and the cover glass fixedly; and placing the upper surface of the casing downwardly on the surface of the platform; the display module and the cover plate are The upper surface of the glass is placed face down on the surface of the platform surface.

Preferably, the display module and the cover glass are fixedly connected, comprising: implementing the fixed connection before the display module and the cover glass are placed in the casing, or first placing the upper surface of the cover glass downward on the platform Inside the casing of the surface, the upper surface of the display module is placed on the lower surface of the cover glass to achieve a fixed connection during assembly.

Preferably, the adhesive is disposed between the side edge of the display module and the inner side wall of the casing, including: dispensing between the side edge of the display module facing the display module and the inner side wall of the casing.

Preferably, the adhesive is a liquid adhesive, and the adhesive is naturally dried after the dispensing is completed, so that the side edge of the display module and the inner side wall of the casing are bonded by an adhesive.

Preferably, the adhesive is a laser glue, and after the dispensing is completed, the sides of the adhesive are activated by a laser, so that the side edges of the display module and the inner side wall of the casing are bonded by an adhesive.

Preferably, the adhesive is a styrofoam, and after the dispensing is completed, the two sides of the adhesive are activated by the heat generating device, so that the side edge of the display module and the inner side wall of the casing are bonded by the adhesive.

A second aspect of the embodiments of the present invention further provides a method for assembling a screen of a portable device, comprising: applying an adhesive on an inner side wall of the casing or a side edge of the display module; and activating the adhesive near an inner side wall of the casing or Displaying one side of the side edge of the module, bonding the adhesive to the inner side wall of the casing or the side edge of the display module; placing the display module and the cover glass in the casing; the activation adhesive is not The activated side bonds the adhesive to the inner side wall of the casing or the side edge of the display module.

Preferably, the display module and the cover glass are disposed in the casing, comprising: fixing the display module and the cover glass fixedly; placing the upper surface of the casing upward on the surface of the platform; and displaying the module and the cover The upper surface of the glass is placed face up in the casing of the platform surface.

Preferably, the display module and the cover glass are fixedly connected, including: a fixed connection before the display module and the cover glass are placed in the casing, or a casing that firstly faces the upper surface of the cover glass on the platform surface The upper surface of the display module is then placed on the lower surface of the cover glass to achieve a fixed connection during assembly.

Preferably, the adhesive is a laser glue, and activating the adhesive comprises: activating with a laser.

Preferably, the adhesive is a styrofoam; the activation adhesive is adjacent to the inner side wall of the casing or one side of the side edge of the display module, including: activation with side pressure; activation of the unactivated side of the adhesive , including: activation with a heating device.

A third aspect of the embodiments of the present invention further provides a portable device, including: a display module, a cover glass and a casing; a display module and a cover glass fixedly connected, and a cover glass covering the display module; The inner side wall is a flat surface; the display module and the cover glass are housed in the casing; and the side edges of the display module and the inner side wall of the casing are bonded by an adhesive.

Preferably, the center of the display module overlaps the center of the cover glass; the side edge of the cover glass abuts against the inner side wall of the casing; the adhesive is disposed under the cover glass, and the inner side wall of the casing and the display In the gap between the side edges of the module.

Preferably, the binder is a laser glue, a styrofoam or a liquid binder.

Preferably, the display module is a display module including a liquid crystal display or a display module including an organic light emitting diode display.

DRAWINGS

1 is a schematic diagram of a mobile phone screen in the prior art;

2 is a schematic diagram of a mobile phone screen according to an embodiment of the present invention;

FIG. 3 is a flowchart of a method for assembling a screen of a mobile phone according to Embodiment 1 of the present invention; FIG.

4 is a schematic diagram of a method for assembling a mobile phone screen according to Embodiment 1 of the present invention;

FIG. 5 is a flowchart of a method for assembling a mobile phone screen according to Embodiment 2 of the present invention; FIG.

FIG. 6 is a flowchart of a method for assembling a mobile phone screen according to Embodiment 3 of the present invention.

Detailed ways

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

The embodiment of the invention relates to a method for assembling a screen in a portable device, wherein the portable device is any portable device including a screen, and may be, for example, a mobile phone, a tablet computer, a smart wristband or a notebook computer, which is not limited herein.

The following is a detailed description of a portable device as a mobile phone.

1 is a schematic diagram of a mobile phone screen in the prior art. In the prior art, the mobile phone screen includes a display module 2, a cover glass 1 and a casing 3, wherein a fixed connection between the cover glass 1 and the display module 2 is shown. The inner side wall of the casing 3 has a stepped adhesive platform 301 structure, the adhesive 4 is disposed on the upper surface of the bonding platform 301, and the cover glass 1 forms an adhesive surface on the upper surface of the bonding platform 301 through the adhesive 4 and the mobile phone. The casing 3 is bonded. Due to the presence of the pasting platform 301, the distance between the display area of the display module 2 and the casing 3 is large, and there is a black border, which affects the screen ratio of the screen of the mobile phone, and the visual effect is poor, and the display module is not completely closed. There is a problem with light leakage.

FIG. 2 is a schematic diagram of a mobile phone screen according to an embodiment of the present invention.

Specifically, the cover glass 1 of the mobile phone screen covers the display module 2, the inner side wall of the casing 3 is flat, the cover glass 1 and the display module 2 are housed in the casing 3, and the adhesive 4 is disposed on the display module. 2 between the side edge and the inner side wall of the casing 3, thereby bonding the display module 2 and the casing 3. Since the inner side wall of the casing 3 is flat, the pasting platform 301 of the prior art as shown in FIG. 1 is omitted. The distance from the side edge of the display module 2 to the outer side wall of the casing 3 is reduced, thereby reducing the black side of the screen and increasing the screen ratio.

Further, the center of the display module 2 is overlapped with the center of the cover glass 1, and the length of the cover glass 1 is larger than that of the display module 2; the side edge of the cover glass 1 abuts against the inner side wall of the casing 3, and the adhesive 4 is disposed under the cover glass 1 and the gap between the inner side wall of the casing 3 and the side edge of the display module 2 completely closes the side wall of the display module 2 of the mobile phone screen, and compensates for the leakage of the screen of the mobile phone Defects.

FIG. 3 is a flowchart of a method for assembling a mobile phone screen according to Embodiment 1 of the present invention.

In step 301, the display module and the cover glass are assembled into the casing.

Specifically, the inner side wall of the casing provided by the first embodiment of the present invention is different from the prior art casing, and there is no pasting step of the inner side wall of the casing in the prior art, and the support of the bonding step to the display module and the cover glass is omitted. .

4 is a schematic diagram of a method for assembling a screen of a mobile phone according to Embodiment 1 of the present invention. When assembling a screen of a mobile phone, in order to ensure that the display module 2 of the mobile phone screen and the cover glass 1 and the casing 3 are firmly bonded, as shown in FIG. 4 As shown, the front side of the cover glass 1 can be fixed to the flat table first, and then the casing 3 is assembled on the outer side of the fixed connection display module 2 and the cover glass 1, so that the display module 2 and The cover glass 1 is housed in the casing 3; when assembling, the upper surface of the casing 3 may be vertically placed on the surface of the platform, and after the display module 2 and the cover glass 1 are fixedly connected, the cover glass 1 is The upper surface is placed upside down in the casing 3 of the platform surface.

The display module 2 and the cover glass 1 may be fixedly connected in advance, or may be fixedly connected during assembly. For example, the upper surface of the cover glass 1 is first placed on the plane table, and then the display module is placed. The upper surface of the cover glass 1 is placed on the lower surface of the cover glass 1 to achieve a fixed connection between the display module 2 and the cover glass 1. The fixing manner of the display module 2 and the cover glass 1 is not limited herein, and may be Any method in the prior art.

The manner in which the display module and the cover glass are assembled into the casing does not require the support of the fixed connection of the mobile phone screen display module 2 and the cover glass 1 of the casing 3, and the prior art as shown in FIG. 1 is omitted. The bonding platform 301 ensures that the fixed connection display module 2 and the cover glass 1 and the casing 3 can be bonded in all directions.

In step 302, an adhesive is disposed between the side edge of the display module and the inner side wall of the casing, so that the side edge of the display module and the inner side wall of the casing are bonded by an adhesive.

An adhesive is disposed between the side edge of the display module and the inner side wall of the casing, and is dispensed between the side surface of the display module facing the side edge of the display module and the inner side wall of the casing.

Specifically, the adhesive is a liquid adhesive, and the adhesive is naturally dried after the dispensing is completed, so that the side edge of the display module and the inner side wall of the casing are bonded by an adhesive.

Specifically, the adhesive is a laser glue, and after the dispensing is completed, the two sides of the adhesive are activated by a laser, so that the side edge of the display module and the inner side wall of the casing are bonded by an adhesive;

Specifically, the adhesive is a styrofoam. After the dispensing is completed, both sides of the adhesive are activated by a heat generating device, so that the side edges of the display module and the inner sidewall of the casing are bonded by an adhesive.

FIG. 5 is a flowchart of a method for assembling a mobile phone screen according to Embodiment 2 of the present invention.

In step 501, a laser glue is applied to the inner side wall of the casing.

In step 502, the laser glue is used to activate the side of the inner side wall of the casing to bond the laser glue to the inner side wall of the casing.

In step 503, the display module and the cover glass are placed in the casing.

Specifically, the display module and the cover glass are fixedly connected, and the upper surface of the casing is placed on the surface of the platform, and the upper surface of the fixed connection display module and the cover glass is placed on the surface of the platform surface. Inside. The laser glue enables the casing to support and fix the fixed connection display module and the cover glass, instead of the prior art paste platform.

Step 504, using a laser to activate the side of the laser glue that is not activated, so that the laser glue is bonded to the side edge of the display module.

During the assembly process, the upper surface of the casing is placed on the surface of the platform, and the upper surface of the fixed connection display module and the cover glass is placed upward in the casing on the surface of the platform. The laser glue is activated twice, so that the display module and the casing are bonded on both sides of the laser glue, so that the display module and the casing form a side joint, thereby minimizing the stickiness between the display module and the casing of the mobile phone screen. Connect the distance, reduce the width of the cover glass, and reduce the width of the frame border to achieve the effect shown in Figure 2.

Alternatively, firstly, a laser glue is applied to the side edge of the display module, and a laser is used to activate the side of the laser glue near the side edge of the display module, and then the fixed connection display module and the cover glass are placed in the casing, and then used. The laser activates the unactivated side of the laser glue, so that the casing and the fixed connection display module and the cover glass are bonded by the laser glue.

In step 601, styrofoam is applied to the inner side wall of the casing.

Step 602, using side pressure to activate the side of the styrofoam near the inner side wall of the casing to bond the styrofoam to the inner side wall of the casing.

In step 603, the display module and the cover glass are placed in the casing.

Specifically, the display module and the cover glass are fixedly connected, and the upper surface of the casing is placed on the surface of the platform, and the upper surface of the fixed connection display module and the cover glass is placed on the surface of the platform surface. Inside. The styrofoam allows the casing to support and fix the fixed connection display module and the cover glass, replacing the prior art pasting platform.

In step 604, the non-activated side of the styrofoam is activated by the heat generating device to bond the styrofoam to the side edges of the display module.

During the assembly process, the upper surface of the casing is placed on the surface of the platform, and the upper surface of the fixed connection display module and the cover glass is placed upward in the casing on the surface of the platform. The styrofoam is activated twice, so that the display module and the casing are bonded on both sides of the styrofoam, so that the display module and the casing form a side joint, thereby minimizing the between the display module and the casing of the mobile phone screen. The bonding distance reduces the width of the cover glass and reduces the width of the frame border. Similarly, the effect as shown in FIG. 2 is achieved.

Alternatively, firstly, styrofoam is applied to the side edge of the display module, and the side of the side of the display module is activated by the side pressure, and the fixed connection display module and the cover glass are placed in the casing. Then, the side of the styrofoam which is not activated is activated by the heat generating device, and the casing and the fixed connection display module and the cover glass are bonded by the styrofoam.

The above embodiment is applicable to the screen of the mobile phone with the length of the cover glass being larger than that of the display module, and the adhesive is a liquid adhesive, a laser glue or a styrofoam, which can prevent the adhesive from scraping to the cover glass; The length is not greater than the display module, and the adhesive is scraped during the process of assembling the adhesive between the side edge of the display module and the inner side wall of the casing. In the case of cover glass, it is necessary to erase excess adhesive to avoid affecting the appearance of the screen of the mobile phone.

The display module may be a display module including a liquid crystal display or a display module including an organic light emitting diode display.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

A method for assembling a screen of a portable device, comprising:

The display module and the cover glass are placed in the casing;

Adhesive is disposed between the side edge of the display module and the inner side wall of the casing, so that the side edge of the display module and the inner side wall of the casing are bonded by the adhesive .
The method according to claim 1, wherein the placing the display module and the cover glass in the casing comprises:

Fixing and connecting the display module and the cover glass;

Placing the upper surface of the casing downward on the surface of the platform;

The upper surface of the display module and the cover glass is placed downward in the casing of the platform surface.
The method according to claim 2, wherein the display module and the cover glass are fixedly connected, including:

The fixed connection is implemented before the display module and the cover glass are placed in the casing, or

Firstly, the upper surface of the cover glass is placed upside down in the casing of the platform surface, and the upper surface of the display module is placed on the lower surface of the cover glass to be assembled during the assembly process. The fixed connection is achieved.
The method according to any one of claims 1-3, wherein an adhesive is disposed between a side edge of the display module and an inner sidewall of the casing, comprising:

Dispensing is performed between a side edge of the display module facing the display module and an inner side wall of the casing.
The method according to any one of claims 1 to 4, wherein the adhesive is a liquid adhesive, and the adhesive is naturally dried after the dispensing is completed, so that the display module is The side edges and the inner side walls of the casing are bonded by the adhesive.
The method according to any one of claims 1 to 4, wherein the adhesive is a laser glue, and after the dispensing is completed, the two sides of the adhesive are activated by a laser to make the display mode The side edges of the set and the inner side walls of the casing are bonded by the adhesive.
The method according to any one of claims 1 to 4, wherein the adhesive is a styrofoam, and after the dispensing is completed, the two sides of the adhesive are activated by a heat generating device, so that The side edges of the display module and the inner side walls of the casing are bonded by the adhesive.
A method for assembling a screen of a portable device, comprising:

Applying an adhesive to the inner side wall of the casing or the side edge of the display module;

Activating the adhesive adjacent to an inner side wall of the casing or a side of a side edge of the display module to bond the adhesive to an inner side wall of the casing or a side edge of the display module ;

The display module and the cover glass are placed in the casing;

Activating the unactivated side of the adhesive to bond the adhesive to an inner sidewall of the housing or a side edge of the display module.
The method according to claim 8, wherein the placing the display module and the cover glass in the casing comprises:

Fixing and connecting the display module and the cover glass;

Laying the upper surface of the casing upward on the surface of the platform;

The upper surface of the display module and the cover glass is placed upward in the casing of the platform surface.
The method according to claim 9, wherein the display module and the cover glass are fixedly connected, including:

The fixed connection is implemented before the display module and the cover glass are placed in the casing, or

Firstly, the upper surface of the cover glass is placed upside down in the casing of the platform surface, and the upper surface of the display module is placed on the lower surface of the cover glass to be assembled during the assembly process. The fixed connection is achieved.
The method according to any one of claims 8 to 10, wherein the adhesive is a laser glue, and the activating the adhesive comprises: activating with a laser.
The method according to any one of claims 8 to 10, wherein the adhesive is a styrofoam;

The activating the adhesive adjacent to an inner side wall of the casing or a side of a side edge of the display module includes: activating with a side pressure;

The activation of the side of the adhesive that is not activated includes: activation with a heat generating device.
A portable device comprising: a display module, a cover glass and a casing;

The display module and the cover glass are fixedly connected, and the cover glass covers the display module;

The inner side wall of the casing is a flat surface;

The display module and the cover glass are received in the casing;

The side edge of the display module and the inner side wall of the casing are bonded by an adhesive.
A portable device according to claim 13 wherein:

The center of the display module is overlapped with the center of the cover glass;

The side edge of the cover glass abuts against the inner side wall of the casing;

The adhesive is disposed under the cover glass and in a gap between an inner sidewall of the casing and a side edge of the display module.
A portable device according to claim 13 or 14, wherein the binder is a laser glue, a styrofoam or a liquid binder.
The portable device according to any one of claims 13 to 15, wherein the display module is a display module including a liquid crystal display or a display module including an organic light emitting diode display.