Display module, display device and preparation method of display module

Abstract

The invention discloses a display module, a display device and a preparation method of the display module, the display module comprises a display panel, an adhesive tape and an adhesive body, the display panel comprises a plane area and a curved surface area, and the curved surface area comprises a plurality of side edge areas located on the peripheral side of the plane area and corner areas located between every two adjacent side edge areas; the adhesive tape is arranged on the backlight side of the display panel, and notches are formed in the positions, corresponding to the corner areas, of the adhesive tape. The colloid is arranged on the backlight side of the display panel, and the colloid is arranged in the notch and adheres to the display panel. According to the display module, the gap is formed in the adhesive tape, and the gap is filled with the colloid, so that the adhesive tape and the colloid can be matched to cover the whole plane area and the whole curved surface area of the display panel, the overall adhesion strength and reliability of the display module are improved, and meanwhile, the colloid can be better adhered to the corner area of the display panel; the problem that bubbles and wrinkles are prone to occurring in adhesive tape adhesion corner areas in the prior art is solved, and therefore the product reliability of the display module can be further improved.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display module, a display device and a method for preparing the display module. Background Art

[0002] During the process of attaching the composite tape to the display panel, problems such as bubbles, false sticking, and edge wrinkles are easily generated, so the reliability of the prepared display module is low. Summary of the invention

[0003] The main technical problem solved by the present application is to provide a display module, a display device and a method for preparing the display module, which can improve the reliability of the display module.

[0004] In order to solve the above technical problems, the present application adopts a technical solution: providing a display module, the display module including a display panel, a tape and a colloid, the display panel including a flat area and a curved area, the curved area including a plurality of side areas located on the periphery of the flat area and a corner area located between two adjacent side areas; the tape is arranged on the backlight side of the display panel, and the tape is provided with a notch at a position corresponding to the corner area; the colloid is arranged on the backlight side of the display panel, and the colloid is arranged in the notch and adheres to the display panel.

[0005] In order to solve the above technical problems, the present invention further provides a technical solution: providing a display device, comprising any of the display modules described above.

[0006] In order to solve the above technical problems, the present invention also provides a technical solution: a method for preparing a display module is provided, the method comprising: attaching a tape to the backlight side of a display panel, wherein the display panel comprises a flat area and a curved area, the curved area comprises a plurality of side areas located on the periphery of the flat area and a corner area located between two adjacent side areas, the tape is provided with a notch at a position corresponding to the corner area; and a colloid adhered to the display panel is formed at the notch.

[0007] Beneficial effects: The present application sets a notch on the tape and fills the notch with colloid, so that the tape and the colloid can cooperate to cover the entire flat area and curved area of ​​the display panel, thereby improving the overall adhesion strength and reliability of the display module. At the same time, the colloid can better adhere to the corner area of ​​the display panel, avoiding the problem of bubbles and wrinkles in the corner area of ​​the prior art tape adhesion, thereby further improving the product reliability of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0009] Figure 1 A schematic diagram of the structure of a display module provided in one embodiment of the present application;

[0010] Figure 2 for Figure 1 The structural diagram of the display panel is shown in FIG.

[0011] Figure 3 for Figure 1 Schematic diagram of the structure of the middle tape;

[0012] Figure 4 A schematic diagram of the structure of an adhesive tape provided in one embodiment of the present application;

[0013] Figure 5 A schematic diagram of the structure of a display device provided in one embodiment of the present application;

[0014] Figure 6 A flowchart of a method for preparing a display module provided in one embodiment of the present application;

[0015] Figure 7 for Figure 6 Preparation process diagram corresponding to the preparation method. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0017] The terms "first", "second", "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the embodiments of this application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0018] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0019] Please also read Figure 1 , Figure 2 and Figure 3 In one embodiment of the present application, a display module 100 is provided. The display module 100 includes a display panel 10, a tape 20 and a colloid 30. The display panel 10 includes a light-emitting side and a backlight side 11. The display panel 10 is used to achieve the display effect of the display module 100, and the light-emitting side of the display panel 10 is used to display images. The tape 20 and the colloid 30 are both arranged on the backlight side 11 of the display panel 10. The tape 20 and the colloid 30 can support the display panel 10 and also provide adhesion for connecting the display panel 10 to other components (such as a back plate, a frame).

[0020] Specifically, the display panel 10 includes a planar area 12 and a curved area 13 . The curved area 13 includes a plurality of side areas 131 located around the planar area 12 and a corner area 132 located between two adjacent side areas 131 .

[0021] The display panel 10 in this embodiment is a four-curved display panel 10, wherein the angle between the plane area 12 and the curved area 13 is an obtuse angle, or the angle between the plane area 12 and the curved area 13 can also be a right angle. Both the plane area 12 and the curved area 13 of the display panel 10 can be used for display, thereby improving the three-dimensional sense of the display screen of the display module 100, thereby improving the user experience. Among them, the curved area 13 includes a plurality of side areas 131 and a corner area 132 located between two side areas 131, and the corner area 132 serves to transition between two adjacent side areas 131, so that the edge transition of the entire display panel 10 is smooth. In this embodiment, the plane area 12 includes four side areas 131 and four corner areas 132 as an example for illustration.

[0022] The tape 20 is disposed on the backlight side 11 of the display panel 10 , and a notch 21 is formed in the tape 20 at a position corresponding to the corner area 132 .

[0023] Among them, since the curved surface of the corner area 132 of the display panel 10 is bent in multiple directions, by setting a notch 21 at the corner area 132 of the display panel 10 corresponding to the tape 20, it is possible to reduce the situation where the tape 20 is easily squeezed by forces in multiple different directions when it is attached to the corner area 132 of the display panel 10, thereby reducing the risk of the tape 20 bending in the corner area 132 and forming wrinkles or bubbles.

[0024] The colloid 30 is disposed on the backlight side 11 of the display panel 10 . The colloid 30 is disposed in the notch 21 and adheres to the display panel 10 .

[0025] The colloid 30 is filled in the position of the notch 21 and adhered to the corner area 132 of the display panel 10. The good fluidity of the colloid 30 before curing enables it to be fully filled in the notch 21, so that the colloid 30 can adapt to the curved shape of the corner area 132, thereby effectively improving the adhesion yield of the colloid 30 and reducing the difficulty of laminating the backlight side 11 of the entire display panel 10.

[0026] In the above-mentioned display module 100, by setting a notch 21 on the tape 20 and filling the notch 21 with the colloid 30, the tape 20 and the colloid 30 can cooperate to cover the entire flat area 12 and the curved area 13 of the display panel 10, thereby improving the overall adhesion strength and reliability of the display module 100. At the same time, the colloid 30 can be better adhered to the corner area 132 of the display panel 10, avoiding the problem of bubbles and wrinkles that are easy to occur when the tape 20 adheres to the corner area 132 in the prior art, thereby further improving the product reliability of the display module 100.

[0027] Please also read Figure 2 and Figure 3In one embodiment, the adhesive tape 20 includes a first adhesive portion 22 and a plurality of second adhesive portions 23. The first adhesive portion 22 is correspondingly disposed on the plane area 12 of the display panel 10, and the plurality of second adhesive portions 23 are spaced apart along the circumference of the first adhesive portion 22, and the plurality of second adhesive portions 23 are correspondingly disposed on the plurality of side areas 131 of the display panel 10, wherein a gap 21 is formed between the first adhesive portion 22 and two adjacent second adhesive portions 23.

[0028] Specifically, the first adhesive portion 22 is attached to the planar area 12 of the display panel 10 , which can provide stable support for the planar area 12 of the display panel 10 , while also ensuring that the planar area 12 of the display panel 10 can be tightly connected to the backlight module or other components through the first adhesive portion 22 .

[0029] It is understandable that, since the plane area 12 is usually the main area directly viewed by the user, the first adhesive portion 22 needs to have good transparency and sufficient viscosity to prevent any bubbles or unevenness that may affect the visual effect of the display panel 10 .

[0030] Multiple second adhesive portions 23 are arranged at intervals along the circumference of the first adhesive portion 22, and each second adhesive portion 23 corresponds to a side area 131 of the display panel 10, so that the second adhesive portion 23 can adapt to the requirements of the curved surface design of the side area 131, thereby ensuring that the side area 131 of the display panel 10 can be effectively supported and fixed to improve the bonding effect. At the same time, a gap 21 is formed between two adjacent second adhesive portions 23, which can reduce the risk of wrinkles and bubbles caused by arranging the second adhesive portion 23 in the corner area 132.

[0031] Please continue reading Figure 2 and Figure 3 In one embodiment, the first adhesive portion 22 and the second adhesive portion 23 are integrally formed. The integrally formed first adhesive portion 22 and second adhesive portion 23 can improve the structural strength of the adhesive tape 20, and the entire adhesive tape 20 as a whole is more durable and less prone to delamination or tearing.

[0032] In other embodiments, the first adhesive portion 22 and the second adhesive portion 23 may also be prepared separately, and the thickness and viscosity of the first adhesive portion 22 and the second adhesive portion 23 may also be formulated according to the requirements of different areas of the display panel 10, thereby improving the versatility and quality stability of the tape 20.

[0033] In one embodiment, the outer contour of the first adhesive part 22 exposed at the notch 21 is an arc segment. It is understandable that, when viewed from the side of the tape 20, the outer contour of the first adhesive part 22 exposed at the notch 21 should be an arc surface. Since the thickness unit of the first adhesive part 22 is generally μm, the outer contour of the first adhesive part 22 exposed at the notch 21 is basically an arc segment when viewed from the side, so the outer contour of the first adhesive tape 22 exposed at the notch 21 is described as an arc segment here. Or, it can be seen from the front of the tape 20 that the outer contour of the first adhesive part 22 exposed at the notch 21 is an arc segment. The arc shape helps to better disperse the concentrated pressure on the first adhesive part 22 near the notch 21, thereby reducing the risk of damage to the tape 20 due to local stress concentration in the part of the first adhesive part 22 exposed at the notch 21. And for the display panel 10 with a curved area 13, the arc design can more naturally fit the curvature change without affecting the functional performance of the curved part.

[0034] In other embodiments, the outer contour of the first adhesive portion 22 exposed at the notch 21 may be a straight line segment, which is not limited here.

[0035] Please also read Figure 1 and Figure 3 In one embodiment, the colloid 30 adheres two adjacent second adhesive portions 23 and the first adhesive portion 22. The above configuration enables the colloid 30 to completely fill the gap between the first adhesive portion 22 and the second adhesive portion 23. The tight connection between the colloid 30, the first adhesive portion 22, and the second adhesive portion 23 helps to improve the waterproof and dustproof capabilities of the entire backlight side 11 of the display panel 10, thereby protecting the internal components from environmental factors.

[0036] In other embodiments, there may be gaps between the colloid 30 and the second adhesive portion 23 and the first adhesive portion 22 , which is not limited here.

[0037] Please also read Figure 2 and Figure 4 In one embodiment, the tape 20 includes a buffer layer 24 and a heat dissipation layer 25 which are stacked together, and the buffer layer 24 is arranged on the side of the heat dissipation layer 25 away from the display panel 10, wherein the orthographic projection of the buffer layer 24 on the display panel 10 overlaps with the orthographic projection of the heat dissipation layer 25 on the display panel 10.

[0038] Specifically, the setting of the buffer layer 24 can provide a physical buffering effect for the display panel 10, reducing the impact of external shocks or vibrations on the display panel 10 and its internal components. Among them, the material of the buffer layer 24 includes foam. The setting of the heat dissipation layer 25 can improve the heat dissipation efficiency, help the display module 100 dissipate the heat generated during operation, and thus extend the life of the display module 100. Among them, the material of the heat dissipation layer 25 includes metal. At the same time, the orthographic projection of the buffer layer 24 on the heat dissipation layer 25 completely overlaps with the heat dissipation layer 25, ensuring that the backlight side 11 area of ​​the entire display panel 10 can be evenly protected, avoiding the problem of damage to the display panel 10 due to local lack of buffering.

[0039] It should be noted that the figure of this embodiment only illustrates the structure of the tape 20 for example. In specific implementation, the structure of the composite tape 20 layer includes but is not limited to this, and may also include other structures. For example, the tape 20 may also include film materials other than the buffer layer 24 and the heat dissipation layer 25, and may be bonded together with the backlight side 11 of the display panel 10, which will not be elaborated here.

[0040] Please refer again Figure 1 and Figure 2 In one embodiment, the colloid 30 fills the gap 21, which can effectively strengthen the support strength of the corner area 132 of the display panel 10 and prevent the corner area 132 from being damaged or cracked due to stress concentration. At the same time, the colloid 30 at the gap 21 can also provide adhesion for the connection between the corner area 132 and other components.

[0041] In one embodiment, the surface of the colloid 30 facing away from the display panel 10 is smoothly connected to the surface of the tape 20 facing away from the display panel 10. The smooth connection ensures the consistency between the colloid 30 and the tape 20, thereby reducing the risk of excessive local stress or insufficient adhesion due to uneven surfaces, and improving the product reliability of the display module 100.

[0042] It is understandable that in other embodiments, the surface of the colloid 30 facing away from the display panel 10 and the surface of the tape 20 facing away from the display panel 10 may not be in the same plane, and this is not limited here.

[0043] In one embodiment, the material of the colloid 30 includes any one of a thermosetting resin material and a UV curing glue, which is not limited here.

[0044] See also Figure 5 The present application also provides a display device 200 , which at least includes the above-mentioned display module 100 .

[0045] It should be noted that the display device 200 provided in the embodiment of the present invention may be embodied as any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, etc.

[0046] Please also read Figure 1 , Figure 2 , Figure 3 and Figure 6 The present application also provides a method for preparing a display module, the method comprising:

[0047] S300: Attaching a tape 20 to the backlight side 11 of the display panel 10, wherein the display panel 10 includes a flat area 12 and a curved area 13, the curved area 13 includes a plurality of side areas 131 located around the flat area 12 and a corner area 132 located between two adjacent side areas 131, and a notch 21 is provided in the tape 20 corresponding to the corner area 132.

[0048] Among them, since the curved surface of the corner area 132 of the display panel 10 is bent in multiple directions, by setting a notch 21 at the corner area 132 of the display panel 10 corresponding to the tape 20, it is possible to reduce the situation where the tape 20 is easily squeezed by forces in multiple different directions when it is attached to the corner area 132 of the display panel 10, thereby reducing the risk of the tape 20 bending in the corner area 132 and forming wrinkles or bubbles.

[0049] S310 : forming a glue 30 adhered to the display panel 10 at the notch 21 .

[0050] Specifically, the colloid 30 is filled in the position of the notch 21 and adhered to the corner area 132 of the display panel 10. The good fluidity of the colloid 30 before curing enables it to be fully filled in the notch 21, so that the colloid 30 can adapt to the curved shape of the corner area 132, thereby effectively improving the adhesion yield of the colloid 30 and reducing the difficulty of bonding the backlight side 11 of the entire display panel 10.

[0051] Please also read Figure 2 , Figure 3 and Figure 7 The adhesive tape 20 includes a first adhesive portion 22 and a plurality of second adhesive portions 23 , wherein the plurality of second adhesive portions 23 are arranged at intervals along the circumference of the first adhesive portion 22 , wherein a gap 21 is formed between the first adhesive portion 22 and two adjacent second adhesive portions 23 .

[0052] The plane area 12 includes a first side 121 and a second side 122, and the length of the first side 121 is greater than or equal to the length of the second side 122. The plurality of side areas 131 include a first side area 1311 connected to the first side 121, a second side area 1312 connected to the second side 122, a third side area 1313 disposed opposite to the first side area 1311, and a fourth side area 1314 disposed opposite to the second side area 1312.

[0053] In this embodiment, the plane area 12 is a rectangular structure, that is, the plane area 12 includes two first sides 121 and two second sides 122. The first side area 1311 and the third side area 1313 are respectively connected to the two first sides 121, and the second side area 1312 and the fourth side area 1314 are respectively connected to the two second sides 122.

[0054] In one embodiment, step S300 includes:

[0055] S301 : attaching the first adhesive portion 22 to the planar area 12 .

[0056] During the attaching process, starting from one end of the first adhesive portion 22 , the first adhesive portion 22 is slowly and evenly attached to the plane area 12 , while pressing to ensure that the first adhesive portion 22 on the plane area 12 is flat and free of bubbles.

[0057] S302 : attaching the second adhesive portion 23 corresponding to the first side region 1311 and the third side region 1313 to the first side region 1311 and the third side region 1313 respectively.

[0058] In step S302 , the second adhesive portion 23 corresponding to the long side is slowly and evenly attached to the first side area 1311 and the third side area 1313 starting from one end of the first side area 1311 and the third side area 1313 .

[0059] S303 : attaching the second adhesive portion 23 corresponding to the second side region 1312 and the fourth side region 1314 to the second side region 1312 and the fourth side region 1314 respectively.

[0060] In this embodiment, the second adhesive portion 23 corresponding to the short side starts from one end of the second side region 1312 and the fourth side region 1314 , and is slowly and evenly attached to the second side region 1312 and the fourth side region 1314 .

[0061] It can be understood that in other embodiments, the length of the first side 121 of the planar region 12 may be equal to the length of the second side 122 .

[0062] In the above step S300 , the plane area 12 , the first side area 1311 , the third side area 1313 , the second side area 1312 , and the fourth side area 1314 are attached in sequence, which can improve the attachment effect of the tape 20 , thereby improving the product reliability of the display panel 10 .

[0063] In one embodiment, in the above step S300, a roller may be used to attach the tape 20 to the plane area 12 and the side area 131. The roller can provide uniform pressure during the attachment of the tape 20, reducing the presence of bubbles or gaps between the tape 20 and the plane area 12 and the side area 131 of the display panel 10. The pressure during the rolling of the roller can eliminate the tiny wrinkles between the tape 20 and the display panel 10, making the surface of the tape 20 more flat and smooth.

[0064] In one embodiment, step S310 includes:

[0065] S311 : using a dispensing valve to form a glue 30 at the notch 21 to adhere to the display panel 10 .

[0066] Specifically, by using the dispensing valve, highly accurate dispensing of the colloid 30 can be achieved, thereby improving the dispensing efficiency. At the same time, the dispensing valve can also flexibly adjust the dispensing procedure according to different design requirements to adapt to the gaps 21 of different shapes and sizes.

[0067] In one embodiment, the method further comprises:

[0068] S320: curing the colloid 30.

[0069] The cured colloid 30 can effectively seal the gap 21 , thereby preventing moisture, dust, etc. from entering the interior of the display module 100 , and further improving the product reliability of the display module 100 .

[0070] In one embodiment, step S320 includes:

[0071] S321: curing the colloid 30 by irradiating with ultraviolet light.

[0072] Specifically, UV lamp curing can be completed within a few seconds, thereby improving curing efficiency.

[0073] In other embodiments, the colloid 30 may be cured by thermal curing or other natural curing methods.

[0074] In the method for preparing the display module 100, the notch 21 is provided on the tape 20 and the colloid 30 is filled in the notch 21, so that the tape 20 and the colloid 30 can cooperate to cover the entire flat area 12 and the curved area 13 of the display panel 10, thereby improving the overall adhesion strength and reliability of the display module 100. At the same time, the colloid 30 can be better adhered to the corner area 132 of the display panel 10, avoiding the problem of bubbles and wrinkles that are easy to occur when the tape 20 adheres to the corner area 132 in the prior art, thereby further improving the product reliability of the display module 100.

[0075] The above are only implementation methods of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display module, characterized in that: The display module comprises: A display panel, the display panel comprising a flat area and a curved area, the curved area comprising a plurality of side areas located around the flat area and a corner area located between two adjacent side areas; An adhesive tape is disposed on the backlight side of the display panel, and a notch is provided on the adhesive tape at a position corresponding to the corner area; The colloid is arranged on the backlight side of the display panel, and the colloid is arranged in the notch and adheres to the display panel.

2. The display module according to claim 1, characterized in that: The adhesive tape comprises: A first adhesive portion, disposed corresponding to the plane area of ​​the display panel; A plurality of second adhesive portions are arranged at intervals along the circumference of the first adhesive portion, and the plurality of second adhesive portions are arranged one by one on the plurality of side regions of the display panel, wherein the gap is formed between the first adhesive portion and two adjacent second adhesive portions; Preferably, the first adhesive portion and the second adhesive portion are integrally formed.

3. The display module according to claim 2, characterized in that: The outer contour of the first adhesive portion exposed at the notch is an arc segment.

4. The display module according to claim 2, characterized in that: The colloid adheres two adjacent second adhesive portions and the first adhesive portion.

5. The display module according to claim 1, characterized in that: The adhesive tape comprises a buffer layer and a heat dissipation layer which are stacked, wherein the buffer layer is arranged on a side of the heat dissipation layer away from the display panel, wherein an orthographic projection of the buffer layer on the display panel overlaps with an orthographic projection of the heat dissipation layer on the display panel; Preferably, the material of the buffer layer includes foam; Preferably, the material of the heat dissipation layer includes metal.

6. The display module according to claim 1, characterized in that: The colloid fills the gap; Preferably, a surface of the colloid facing away from the display panel is smoothly connected to a surface of the tape facing away from the display panel.

7. The display module according to claim 1, characterized in that: The material of the colloid includes at least one of a thermosetting resin material and a UV curing glue.

8. A display device, characterized in that: The display device at least includes the display module according to any one of claims 1 to 7.

9. A method for preparing a display module, characterized in that: The method comprises: attaching an adhesive tape to the backlight side of a display panel, wherein the display panel comprises a flat surface area and a curved surface area, the curved surface area comprises a plurality of side edge areas located around the flat surface area and a corner area located between two adjacent side edge areas, and the adhesive tape is provided with a notch at a position corresponding to the corner area; A colloid adhered to the display panel is formed at the notch.

10. The method according to claim 9, characterized in that The adhesive tape comprises a first adhesive portion and a plurality of second adhesive portions, wherein the plurality of second adhesive portions are arranged at intervals along the circumference of the first adhesive portion, wherein the gap is formed between the first adhesive portion and two adjacent second adhesive portions; the plane area comprises a first side edge and a second side edge, wherein the length of the first side edge is greater than or equal to the length of the second side edge, and the plurality of side edge areas comprise a first side edge area connected to the first side edge, a second side edge area connected to the second side edge, a third side edge area arranged opposite to the first side edge area, and a fourth side edge area arranged opposite to the second side edge area; The step of attaching the tape to the backlight side of the display panel includes: attaching the first adhesive portion to the plane area; Attaching the second adhesive portion corresponding to the first side edge region and the third side edge region to the first side edge region and the third side edge region respectively; Attaching the second adhesive portion corresponding to the second side edge region and the fourth side edge region to the second side edge region and the fourth side edge region respectively; Preferably, the step of forming a colloid adhered to the display panel at the notch includes: Using a dispensing valve to form the colloid adhering to the display panel at the notch; Preferably, the method further comprises: solidifying the colloid; Preferably, the step of solidifying the colloid comprises: The colloid is solidified by irradiating with ultraviolet light.

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