CN110442202B - Display assembly mounting method and display device - Google Patents

Display assembly mounting method and display device Download PDF

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Publication number
CN110442202B
CN110442202B CN201910577522.0A CN201910577522A CN110442202B CN 110442202 B CN110442202 B CN 110442202B CN 201910577522 A CN201910577522 A CN 201910577522A CN 110442202 B CN110442202 B CN 110442202B
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China
Prior art keywords
module
accommodating groove
touch
display module
connecting surface
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CN201910577522.0A
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CN110442202A (en
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赵良
闫鑫
孙宜阳
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Shanghai Huaxing Digital Technology Co Ltd
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Shanghai Huaxing Digital Technology Co Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/18Packaging or power distribution
    • G06F1/183Internal mounting support structures, e.g. for printed circuit boards, internal connecting means

Abstract

The disclosure provides a display component mounting method and a display device, and relates to the technical field of touch display. The display assembly mounting method is used for assembling the touch panel assembly and the upper cover. The upper cover is provided with a first containing groove and a second containing groove, and a first connecting surface is formed at the bottom of the first containing groove. The touch panel assembly includes a display module and a touch module. The display component mounting method comprises the following steps: the display module is pasted to the rear side of the touch module, and a second connecting surface is formed on the rear side of the touch module; attaching a first adhesive to the edge of the first connecting surface close to the second accommodating groove; uniformly arranging second bonding glue at the position, close to the first bonding glue, of the first connecting surface, and forming a glue layer with a first thickness; the display module is placed in the second accommodating groove, the touch module is placed in the first accommodating groove, and the second connecting surface and the first connecting surface are adhered through the first adhesive layer and the first thickness adhesive layer. The display assembly mounting method is convenient in process and assembly, and can improve the vibration resistance and the waterproof performance of the product.

Description

Display assembly mounting method and display device
Technical Field
The disclosure relates to the technical field of touch display, in particular to a display component installation method and a display device.
Background
With the continuous change of the working environment of the engineering machinery, the requirements of the display device on the reliability aspects of water resistance, high and low temperature resistance, vibration resistance and the like are higher and higher.
The existing display device has high requirements on the structure of parts, has high difficulty in process assembly, wastes time and labor, is easy to cause unstable local connection, and influences the problems of vibration resistance, waterproof performance and the like of products.
Disclosure of Invention
The purpose of the disclosure includes providing a display assembly installation method, which is convenient in process assembly and can improve the vibration resistance and waterproof performance of products.
The object of the present disclosure is also to provide a display device which is excellent in vibration resistance and waterproof property and low in production cost.
The technical problem to be solved by the present disclosure is realized by adopting the following technical scheme:
the display assembly mounting method is used for assembling a touch panel assembly and an upper cover, wherein a first accommodating groove is formed in the upper cover, a second accommodating groove is formed in the bottom of the first accommodating groove, and a first connecting surface is formed at the bottom of the first accommodating groove; the touch pad assembly comprises a display module and a touch module; the display assembly mounting method comprises the following steps:
the display module is pasted to the rear side of the touch module, and a second connecting surface is formed on the rear side of the touch module;
attaching a first adhesive to the edge of the first connecting surface close to the second accommodating groove;
uniformly arranging second bonding glue at the position, close to the first bonding glue, of the first connecting surface, and forming a glue layer with a first thickness;
and placing the display module in the second accommodating groove, placing the touch module in the first accommodating groove, and adhering the second connecting surface and the first connecting surface through the first adhesive layer and the first thickness adhesive layer.
Further, the display assembly installation method further comprises the following steps:
uniformly arranging third bonding glue on the periphery of the bottom of the second accommodating groove and forming a glue layer with a second thickness;
the step of placing the display module in the second accommodating groove, placing the touch module in the first accommodating groove, and enabling the second connecting surface and the first connecting surface to be pasted through the first pasting glue and the first thickness glue layer comprises the following steps:
the display module is placed in the second accommodating groove, the touch module is placed in the first accommodating groove, the second connecting surface and the first connecting surface are pasted through the first pasting glue, the side wall of the touch module and the side wall of the first accommodating groove are pasted through the first thickness glue layer and the first thickness glue layer, and the display module and the second accommodating groove are pasted through the second thickness glue layer.
Further, the display assembly installation method further comprises the following steps:
pressing the touch panel assembly to enable the second laminating adhesive to fill gaps between the touch module and the upper cover, and enable the third laminating adhesive to fill gaps between the display module and the upper cover, and simultaneously enabling the top surface of the touch module to be flush with the top surface of the upper cover or enabling the top surface of the touch module to be lower than the top surface of the upper cover.
Further, the display assembly installation method further comprises the following steps:
and scraping the second adhesive overflowing from the top of the upper cover, and cleaning the touch panel assembly and the upper cover.
Furthermore, a lens hole is formed in the touch module, and a flat cable is arranged on the second connecting surface; the first connecting surface is provided with through holes and reference holes at intervals in a penetrating manner, and the display assembly mounting method further comprises the following steps:
aligning the lens hole with the reference hole and passing the flat cable through the through hole.
Further, the step of adhering the display module to the rear side of the touch module and forming a second connection surface at the rear side of the touch module includes:
cleaning the display module;
flatly attaching a fourth adhesive to the display module;
and adhering the display module and the touch module through the fourth adhesive.
Further, after the step of adhering the display module and the touch module by the fourth adhesive, the step of adhering the display module to the rear side of the touch module and forming a second connection surface on the rear side of the touch module further includes:
and filling gaps around the display module and the touch module with reinforcing glue.
The display device is assembled by adopting the display component mounting method, and comprises a touch panel component, an upper cover, a main board and a lower cover; a first accommodating groove is formed in the upper cover, a second accommodating groove is formed in the bottom of the first accommodating groove, and a first connecting surface is formed at the bottom of the first accommodating groove; the touch panel assembly comprises a display module and a touch module, wherein the display module is adhered to the rear side of the touch module, and a second connecting surface is formed on the rear side of the touch module;
a first adhesive is attached to the edge of the first connecting surface close to the second accommodating groove; second bonding glue is uniformly arranged on the first connecting surface close to the first bonding glue, and a first-thickness glue layer is formed;
the display module is arranged in the second accommodating groove, the touch control module is arranged in the first accommodating groove, and the second connecting surface and the first connecting surface are adhered through the first adhesive layer and the first thickness adhesive layer;
the mainboard is installed on the upper cover, the lower cover with the upper cover is dismantled and is connected, and, the mainboard set up in the upper cover with between the lower cover.
Furthermore, third bonding glue is uniformly arranged on the periphery of the bottom of the second accommodating groove, and a glue layer with a second thickness is formed; the display module and the second accommodating groove are adhered through the second thickness glue layer.
Further, the first adhesive is a VHB back adhesive, and the second adhesive and the third adhesive are RTV adhesives.
The beneficial effects of the disclosed embodiment include:
the display assembly mounting method provided by the embodiment of the disclosure attaches the first bonding glue to the first connecting surface of the upper cover, and sets the first thickness glue layer, so that the display module is placed in the second accommodating groove, the touch module is placed in the first accommodating groove, and the second connecting surface and the first connecting surface are adhered through the first bonding glue and the second bonding glue.
According to the display device provided by the embodiment of the disclosure, due to the adoption of the display component mounting method, the touch panel component and the upper cover can be pasted twice, the vibration resistance and the waterproof performance are better, and the production cost is low.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present disclosure, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate certain embodiments of the present disclosure, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to these drawings without inventive efforts.
Fig. 1 is an exploded schematic view of a display device according to an embodiment of the present disclosure.
Fig. 2 is a schematic cross-sectional structure diagram of an upper cover of a display device according to an embodiment of the disclosure.
Fig. 3 is a flowchart of a display component installation method according to an embodiment of the present disclosure.
Fig. 4 is an exploded structural schematic diagram of a display module and a touch module of a display device according to an embodiment of the present disclosure.
Fig. 5 is a flowchart illustrating a step of adhering the display module to the rear side of the touch module and forming a second connection surface on the rear side of the touch module according to the embodiment of the disclosure.
Fig. 6 is an exploded schematic view of a touch panel assembly and an upper cover of a display device according to an embodiment of the present disclosure.
Icon: 100-a display device; 110-a touch pad assembly; 112-a touch module; 1121-lens hole; 113-a display module; 101-a second connection face; 114-a flat cable; 120-upper cover; 121-a first receiving groove; 122-a second receiving groove; 102-a first connection face; 103-a through hole; 104-a reference hole; 130-a main board; 140-lower cover.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. The components of the embodiments of the present disclosure, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present disclosure, presented in the figures, is not intended to limit the scope of the claimed disclosure, but is merely representative of selected embodiments of the disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present disclosure, it should be noted that the terms "upper" and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally laid out when the disclosed products are used, and are only used for convenience in describing and simplifying the present disclosure, but do not indicate or imply that the referred devices or elements must have specific orientations, be constructed in specific orientations and operations, and thus, should not be construed as limiting the present disclosure.
Furthermore, the terms "first," "second," "third," and "fourth," etc. are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present disclosure, it should also be noted that, unless otherwise specified or limited more specifically, the terms "disposed" and "connected" are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.
In the following, an embodiment of the present disclosure will be described in detail with reference to the drawings, and features in the following embodiments may be combined with each other without conflict.
Fig. 1 is an exploded schematic view of a display device 100 according to this embodiment. Referring to fig. 1, the present embodiment provides a display device 100, and the display device 100 may be a display screen of an engineering machine with a touch function. It includes a touch panel assembly 110, an upper cover 120, a main board 130, and a lower cover 140.
The touch panel assembly 110 and the main board 130 are respectively mounted on two sides of the upper cover 120 and electrically connected to each other, and the lower cover 140 is detachably connected to the upper cover 120 to cover the main board 130 between the upper cover 120 and the lower cover 140 to protect the main board 130.
Optionally, in this embodiment, the touch panel assembly 110 includes a touch module 112 and a display module 113, the display module 113 is mounted on a rear side of the touch module 112, and a flat cable 114 is further disposed on the rear side of the touch module 112, and is spaced apart from the display module 113 and electrically connected to the main board 130.
In this embodiment, the display module 113 and the touch module 112 are both substantially rectangular plate-shaped, the front surface area of the display module 113 is smaller than the area of the rear surface of the touch module 112, the display module 113 is adhered to the rear side of the touch module 112, and the second connection surface 101 is formed on the rear side of the touch module 112. It is understood that the flat cable 114 is disposed on the second connecting surface 101 and can be bent to be disposed opposite to the rear side of the display module 113.
In this embodiment, the touch module 112 is provided with a lens hole 1121 (see fig. 4) for positioning.
It should be noted that, in this embodiment, for convenience of description, the touch panel assembly 110, the main board 130, the upper cover 120, and the lower cover 140 are defined to be arranged in order from front to back, and therefore, in this embodiment, "front side" and "back side" are respectively orientations defined in the front-back direction.
Fig. 2 is a schematic cross-sectional structure diagram of the upper cover 120 of the display device 100 according to the present embodiment. Referring to fig. 1 and fig. 2, in the present embodiment, the upper cover 120 is in a housing shape, a first accommodating groove 121 is disposed on the upper cover 120, a second accommodating groove 122 is disposed at a bottom of the first accommodating groove 121, and a first connection surface 102 is formed at a bottom of the first accommodating groove 121. It can be understood that the second receiving groove 122 and the first receiving groove 121 are communicated with each other.
The first connecting surface 102 has a through hole 103 for the flat cable 114 to pass through. In this embodiment, the first connection surface 102 further has a reference hole 104 formed therethrough for cooperating with the lens hole 1121 to perform a positioning function.
Optionally, a first adhesive (not shown) is smoothly adhered to an edge of the first connection surface 102 close to the second receiving groove 122, and a second adhesive is further disposed on the first connection surface 102 to form a first thickness adhesive layer (not shown). The second adhesive is adjacent to the first adhesive. The bottom edge of the second receiving groove 122 is provided with a third adhesive layer to form a second adhesive layer (not shown).
In this embodiment, the first adhesive may be a polyacrylate double-sided foam tape (VHB back adhesive), and the second adhesive and the third adhesive may be room temperature vulcanized silicone rubber (RTV adhesive). The first adhesive glue may be provided in a plurality of numbers, and is disposed close to the periphery of the second receiving groove 122 at uniform intervals. The second adhesive may be spread over the surface of the first connection surface 102, and it should be understood that the second adhesive should bypass the positions of the through holes 103 and the reference holes 104 to prevent the through holes 103 and the reference holes 104 from filling and even blocking. The third adhesive is disposed along the bottom edge of the second receiving groove 122, so as to be conveniently adhered to the touch panel assembly 110.
In this embodiment, the display module 113 is disposed in the second receiving groove 122, the touch module 112 is disposed in the first receiving groove 121, the second connection surface 101 and the first connection surface 102 are adhered by a first adhesive layer and a first thickness adhesive layer, and the display module 113 and the second receiving groove 122 are adhered by a second thickness adhesive layer.
It can be understood that, in this embodiment, the first adhesive may function to adhere and support the touch pad assembly 110, and may prevent the touch pad assembly 110 from sinking due to its own weight. The second laminating is glued and can be played and paste and waterproof effect, and upper cover 120 and touch panel assembly 110 can be sealed to first thickness glue film, satisfies engineering machine tool waterproof performance requirement to, in this embodiment, the thickness of first thickness glue film satisfies the equipment and accomplishes the back, and this first thickness glue film contacts with touch panel assembly 110. The third adhesive can support and fix the touch panel assembly 110, and can meet the requirement of vibration reliability on engineering machinery, and the thickness of the second thickness adhesive layer meets the requirement that the second thickness adhesive layer is contacted with the touch panel assembly 110 after the assembly is completed.
It can be understood that the display device 100 having such a structure adheres the touch panel assembly 110 and the upper cover 120 from a plurality of directions, has strong structural stability, and can ensure superior vibration resistance and waterproof performance.
Fig. 3 is a flowchart of a display component installation method provided in this embodiment. Referring to fig. 3, based on the display device 100, the present embodiment further provides a display assembly mounting method, which includes the following steps:
step S110: the display module 113 is adhered to the bottom surface of the touch module 112, and a second connection surface 101 is formed on the bottom surface of the touch module 112.
Fig. 4 is an exploded schematic view of the display module 113 and the touch module 112 of the display device 100 according to the present embodiment. Fig. 5 is a flowchart illustrating a step of adhering the display module 113 to the bottom surface of the touch module 112 and forming the second connection surface 101 on the bottom surface of the touch module 112 in the present embodiment. Referring to fig. 4 and fig. 5 in combination, optionally, the step S110 may further include the following steps:
step S112: the display module 113 is cleaned.
The cleaning of the surface of the display module 113 can enhance the strength of the adhesion.
Step S113: the fourth adhesive is flatly attached to the display module 113.
It should be noted that, in order to ensure the use effect of the display module 113 and the touch module 112, the fourth adhesive may be an optical adhesive. Moreover, it can be understood that the fourth adhesive should be spread over the surface of the display module 113, and a relatively flat surface is formed to ensure tight connection with the touch module 112.
Step S114: and adhering the display module 113 and the touch module 112 by a fourth adhesive.
In step S114, a jig may be selected for bonding.
Step S115: the gaps around the display module 113 and the touch module 112 are filled with reinforcing glue.
The reinforcing glue is filled in the gaps around the display module 113 and the touch module 112, so that the stability of the connection structure of the display module 113 and the touch module 112 can be further ensured, and good sealing performance can be ensured.
Fig. 6 is an exploded schematic view of the touch panel assembly 110 and the upper cover 120 of the display device 100 according to this embodiment. Referring to fig. 3 and fig. 6, in this embodiment, the display module mounting method further includes the following steps:
step S120: a first adhesive is attached to the edge of the first connection surface 102 near the second receiving cavity 122.
It is understood that the first adhesive may be continuously disposed along the periphery of the second receiving groove 122, or may be disposed at intervals, for example, 8 adhesive may be disposed at the periphery of the second receiving groove 122, so as to connect and support the touch panel assembly 110.
Step S130: the second adhesive is uniformly disposed on the first connection surface 102 near the first adhesive, and a first thickness adhesive layer is formed.
Step S140: third bonding glue is uniformly arranged on the periphery of the bottom of the second accommodating groove 122, and a glue layer with a second thickness is formed.
It is understood that the second adhesive can be spread over the first connection surface 102 as much as possible to ensure good sealing performance. The third bonding glue may be continuously disposed along the bottom periphery of the second receiving groove 122 to ensure good sealing performance and vibration resistance.
Step S150: the lens holes 1121 are aligned with the reference holes 104, and the flat cable 114 is passed through the through-hole 103.
It is understood that the step S150 can achieve fast positioning, and improve assembly efficiency and assembly accuracy.
Step S160: the display module 113 is placed in the second receiving groove 122, the touch module 112 is placed in the first receiving groove 121, and the second connection surface 101 and the first connection surface 102 are bonded by the first adhesive layer and the first thickness adhesive layer, and the display module 113 and the second receiving groove 122 are bonded by the second thickness adhesive layer.
Step S170: the touch panel assembly 110 is pressed, so that the second adhesive fills a gap between the touch module 112 and the upper cover 120, and the third adhesive fills a gap between the display module 113 and the upper cover 120, and at the same time, the top surface of the touch module 112 is flush with the top surface of the upper cover 120, or the top surface of the touch module 112 is lower than the top surface of the upper cover 120.
That is to say, in the embodiment, by pressing the touch panel assembly 110, the third adhesive can be filled between the bottom wall of the display module 113 and the bottom wall of the second receiving groove 122, between the side wall of the display module 113 and the side wall of the second receiving groove 122, and in the gap between the display module 113 and the upper cover 120, and the second adhesive can be filled between the side wall of the touch module 112 and the side wall of the first receiving groove 121.
Pressing the touch panel assembly 110 can expand the second and third bonding adhesives with a certain ductility, fill the gap, and ensure the structural strength of the display device 100.
Step S180: the second adhesive that overflows from the top of the upper cover 120 is scraped off, and the touch panel assembly 110 and the upper cover 120 are cleaned.
In summary, in the display assembly mounting method provided in this embodiment, the first bonding glue is attached to the first connection surface 102 of the upper cover 120 and a glue layer with a first thickness is disposed, so that the display module 113 is disposed in the second receiving groove 122, the touch module 112 is disposed in the first receiving groove 121, and the second connection surface 101 and the first connection surface 102 are attached by the first bonding glue and the second bonding glue, which is simple in attaching process, and the touch panel assembly 110 and the upper cover 120 are fixed by two times of connection, so that the vibration resistance is strong, and the waterproof performance can be improved.
According to the display device 100 provided by the embodiment, due to the adoption of the display component mounting method, the touch panel component 110 and the upper cover 120 can be adhered twice, the vibration resistance and the waterproof performance are better, and the production cost is low.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims (6)

1. A display component mounting method is used for assembling a touch panel component and an upper cover, wherein a first accommodating groove is formed in the upper cover, a second accommodating groove is formed in the bottom of the first accommodating groove, and a first connecting surface is formed at the bottom of the first accommodating groove; the touch pad assembly comprises a display module and a touch module; the display component mounting method is characterized in that a lens hole is formed in the touch module, a through hole and a reference hole are formed in the first connecting surface in a penetrating mode at intervals, and the display component mounting method comprises the following steps:
the display module is adhered to the rear side of the touch module, a second connecting surface is formed on the rear side of the touch module, and a flat cable is arranged on the second connecting surface;
attaching a first adhesive to the edge of the first connecting surface close to the second accommodating groove;
uniformly arranging second bonding glue at the position, close to the first bonding glue, of the first connecting surface, and forming a glue layer with a first thickness;
uniformly arranging third bonding glue on the periphery of the bottom of the second accommodating groove and forming a glue layer with a second thickness;
aligning the lens hole with the reference hole and enabling the flat cable to pass through the through hole;
placing the display module in the second accommodating groove, placing the touch module in the first accommodating groove, and adhering the second connecting surface and the first connecting surface through the first adhesive layer and the first thickness adhesive layer;
pressing the touch panel assembly to enable the second bonding glue to fill a gap between the touch module and the upper cover, enable the third bonding glue to fill a gap between the display module and the upper cover, and enable the top surface of the touch module to be flush with the top surface of the upper cover or enable the top surface of the touch module to be lower than the top surface of the upper cover;
and scraping the second adhesive overflowing from the top of the upper cover, and cleaning the touch panel assembly and the upper cover.
2. The method for mounting a display module according to claim 1, wherein the step of placing the display module in the second receiving groove, placing the touch module in the first receiving groove, and adhering the second connecting surface and the first connecting surface through the first adhesive layer and the first thickness glue layer comprises:
and placing the display module in the second accommodating groove, placing the touch module in the first accommodating groove, and enabling the second connecting surface and the first connecting surface to be pasted through the first gluing adhesive layer and the first thickness adhesive layer, wherein the display module and the second accommodating groove are pasted through the second thickness adhesive layer.
3. The display module mounting method according to claim 1 or 2, wherein the step of attaching the display module to the rear side of the touch module and forming a second connection surface on the rear side of the touch module includes:
cleaning the display module;
flatly attaching a fourth adhesive to the display module;
and adhering the display module and the touch module through the fourth adhesive.
4. The method for mounting a display module according to claim 3, wherein the step of attaching the display module to the rear side of the touch module and forming a second connection surface on the rear side of the touch module after the step of attaching the display module to the touch module by the fourth attaching adhesive further comprises:
and filling gaps around the display module and the touch module with reinforcing glue.
5. A display device assembled by the display module mounting method according to any one of claims 1 to 4, the display device comprising a touch panel module, an upper cover, a main board, a lower cover; a first accommodating groove is formed in the upper cover, a second accommodating groove is formed in the bottom of the first accommodating groove, and a first connecting surface is formed at the bottom of the first accommodating groove; the touch panel assembly comprises a display module and a touch module, wherein the display module is adhered to the rear side of the touch module, and a second connecting surface is formed on the rear side of the touch module;
a first adhesive is attached to the edge of the first connecting surface close to the second accommodating groove; second bonding glue is uniformly arranged on the first connecting surface close to the first bonding glue, and a first-thickness glue layer is formed;
the display module is arranged in the second accommodating groove, the touch control module is arranged in the first accommodating groove, and the second connecting surface and the first connecting surface are adhered through the first adhesive layer and the first thickness adhesive layer;
the main board is arranged on the upper cover, the lower cover is detachably connected with the upper cover, and the main board is arranged between the upper cover and the lower cover;
third bonding glue is uniformly arranged on the periphery of the bottom of the second accommodating groove, and a glue layer with a second thickness is formed; the display module and the second accommodating groove are adhered through the second thickness glue layer.
6. The display device of claim 5, wherein the first adhesive is a VHB back adhesive, and the second adhesive and the third adhesive are RTV adhesives.
CN201910577522.0A 2019-06-28 2019-06-28 Display assembly mounting method and display device Active CN110442202B (en)

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