Display module and preparation method thereof

Abstract

The invention provides a display module and a preparation method thereof. The method comprises the steps that a first adhesive layer is arranged on the surface of the side, facing a cover plate, of a display panel; a second adhesive layer is arranged on the surface of the side, facing the display panel, of the cover plate. The display panel with the first adhesive layer and the cover plate with the second adhesive layer are attached to each other, and the first adhesive layer and the second adhesive layer form a bonding layer. The possibility of separation of the internal film layer of the display module can be reduced, and the reliability of the display module is improved.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular to a display module and a method for preparing the same. Background Art

[0002] Flat display panels such as Liquid Crystal Display (LCD) panels, Organic Light Emitting Display (OLED) panels and display panels using Light Emitting Diode (LED) devices are widely used in various consumer electronic products such as mobile phones, televisions, personal digital assistants, digital cameras, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices. Summary of the invention

[0003] The embodiments of the present application provide a display module and a method for preparing the same, which can reduce the possibility of film separation inside the display module and improve the reliability of the display module.

[0004] In a first aspect, an embodiment of the present application provides a method for preparing a display module, the method comprising: providing a first adhesive layer on a surface of a display panel facing a cover plate. providing a second adhesive layer on a surface of a cover plate facing the display panel. attaching the display panel with the first adhesive layer and the cover plate with the second adhesive layer to each other, the first adhesive layer and the second adhesive layer forming an adhesive layer.

[0005] In some embodiments, before the step of respectively setting a first adhesive layer on the side surface of the display panel facing the cover plate and the side surface of the cover plate facing the display panel, the step also includes: performing dust removal treatment on the side surface of the display panel facing the cover plate and the side surface of the cover plate facing the display panel.

[0006] In some embodiments, the dust removal process includes a plasma treatment process.

[0007] In some embodiments, disposing a first glue layer on a surface of the display panel facing the cover plate includes: disposing a first liquid glue layer on a surface of the display panel facing the cover plate, and pre-curing the first liquid glue layer to form a first glue layer.

[0008] In some embodiments, the step of providing a first adhesive layer on a surface of the display panel facing the cover plate includes: grinding a first surface of the first adhesive layer on a side facing away from the display panel to reduce roughness of the first surface.

[0009] In some embodiments, disposing a second glue layer on a surface of the cover plate facing the display panel includes: disposing a second liquid glue layer on a surface of the cover plate facing the display panel, and pre-curing the second liquid glue layer to form a second glue layer.

[0010] In some embodiments, the step of providing a second adhesive layer on a surface of the cover plate facing the display panel includes: grinding a second surface of the second adhesive layer facing away from the cover plate to reduce roughness of the second surface.

[0011] In some embodiments, the display panel with the first adhesive layer and the cover plate with the second adhesive layer are bonded to each other, and the first adhesive layer and the second adhesive layer form an adhesive layer, which includes: the thickness of the first adhesive layer is the same as the thickness of the second adhesive layer.

[0012] In some embodiments, the surface of the display panel facing the cover plate and the surface of the cover plate facing the display panel both include a receiving area and a non-receiving area. Providing a first adhesive layer on the surface of the display panel facing the cover plate includes: forming a first adhesive layer in the receiving area of ​​the display panel. Providing a second adhesive layer on the surface of the cover plate facing the display panel includes: forming a second adhesive layer in the receiving area of ​​the cover plate.

[0013] In some embodiments, the display panel and the cover plate both include multiple accommodating areas and multiple non-accommodating areas, the multiple accommodating areas and multiple non-accommodating areas of the display panel are arranged alternately, and the multiple accommodating areas and multiple non-accommodating areas of the cover plate are arranged alternately.

[0014] In some embodiments, bonding a display panel with a first adhesive layer and a cover plate with a second adhesive layer to each other includes: arranging the accommodation area of ​​the display panel relative to the non-accommodating area of ​​the cover plate, and arranging the non-accommodating area of ​​the display panel relative to the accommodating area of ​​the cover plate, so that the first adhesive layer formed on the display panel is embedded in the non-accommodating area of ​​the cover plate, and the second adhesive layer formed on the cover plate is embedded in the non-accommodating area of ​​the display panel.

[0015] In some embodiments, bonding a display panel with a first adhesive layer and a cover plate with a second adhesive layer to each other includes: arranging an accommodation area of ​​the display panel opposite to an accommodation area of ​​the cover plate, and arranging a non-accommodating area of ​​the display panel opposite to a non-accommodating area of ​​the cover plate, so that the first adhesive layer and the second adhesive layer abut against each other.

[0016] In some embodiments, the side surface of the display panel facing the cover plate and the side surface of the cover plate facing the display panel both include a first accommodating area and a second accommodating area. Providing a first glue layer on the side surface of the display panel facing the cover plate includes: forming a first glue portion in the first accommodating area of ​​the display panel, forming a second glue portion in the second accommodating area of ​​the display panel, the thickness of the first glue portion is greater than the thickness of the second glue portion, and the first glue portion and the second glue portion form a first glue layer. Providing a second glue layer on the side surface of the cover plate facing the display panel includes: forming a third glue portion in the first accommodating area of ​​the cover plate, forming a fourth glue portion in the second accommodating area of ​​the cover plate, the thickness of the third glue portion is greater than the thickness of the fourth glue portion, and the third glue portion and the fourth glue portion form a second glue layer. Bonding the display panel with the first glue layer and the cover plate with the second glue layer to each other includes: bonding the first glue portion and the fourth glue portion to each other, and bonding the second glue portion and the third glue portion to each other to form an adhesive layer.

[0017] In some embodiments, a portion of the first adhesive portion is embedded between the third adhesive portion and the fourth adhesive portion, and a portion of the third adhesive portion is embedded between the first adhesive portion and the second adhesive portion.

[0018] In some embodiments, the step of setting a first glue layer on the surface of the display panel facing the cover plate includes: setting a fifth glue part and a plurality of sixth glue parts on the surface of the display panel facing the cover plate, the fifth glue part covers the plurality of sixth glue parts and the surface of the display panel facing the cover plate, the bonding strength of the sixth glue part is greater than the bonding strength of the fifth glue part, and the fifth glue part and the plurality of sixth glue parts form a first glue layer. The step of setting a second glue layer on the surface of the cover plate facing the display panel includes: setting a seventh glue part and a plurality of eighth glue parts on the surface of the cover plate facing the display panel, the seventh glue part covers the plurality of eighth glue parts and the surface of the display panel facing the cover plate, the bonding strength of the eighth glue part is greater than the bonding strength of the seventh glue part, and the seventh glue part and the plurality of eighth glue parts form a second glue layer.

[0019] In some embodiments, a plurality of sixth adhesive portions are arranged in an array.

[0020] In some embodiments, a plurality of eighth adhesive portions are arranged in an array.

[0021] In some embodiments, along the thickness direction of the display module, at least part of the sixth adhesive parts among the plurality of sixth adhesive parts at least partially overlaps with at least part of the eighth adhesive parts among the plurality of eighth adhesive parts.

[0022] In a second aspect, an embodiment of the present application provides a display device, comprising a display panel in any of the aforementioned embodiments.

[0023] The embodiments of the present application provide a display module and a preparation method thereof, and a display device, wherein adhesive layers are first formed on the surfaces of a display panel and a cover plate respectively, and then the display panel and the cover plate are bonded to each other by bonding the two adhesive layers to each other to form an adhesive layer, so as to improve the bonding interface force between the display panel and the cover plate and the adhesive layers, thereby reducing the possibility of separation of the display panel and the cover plate, and further improving the reliability of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] Figure 1 A flowchart of a method for manufacturing a display module provided in an embodiment of the present application;

[0026] Figure 2 A schematic cross-sectional structure diagram of a display module provided in an embodiment of the present application;

[0027] Figures 3 to 5 A schematic diagram of the process structure of a method for manufacturing a display module provided in an embodiment of the present application;

[0028] Figure 6 A schematic diagram of a display panel and a cover plate in a display module provided in an embodiment of the present application;

[0029] Figure 7 A schematic diagram of a display panel and a cover plate in another display module provided in an embodiment of the present application;

[0030] Figures 8 to 13 A schematic diagram of the process structure of a method for manufacturing a display module provided in an embodiment of the present application.

[0031] Marking Description:

[0032] 100, display panel; 200, cover plate; 300, adhesive layer;

[0033] 10, first adhesive layer; 11, first adhesive portion; 111, first step portion; 112, second step portion; 113, first step surface; 12, second adhesive portion; 13, fifth adhesive portion; 14, sixth adhesive portion;

[0034] 20, second adhesive layer; 21, third adhesive portion; 211, third step portion; 212, fourth step portion; 213, second step surface; 22, fourth adhesive portion; 23, seventh adhesive portion; 24, eighth adhesive portion;

[0035] 30, first liquid adhesive layer; 40, second liquid adhesive layer; S1, first surface; S2, second surface;

[0036] AA, accommodating area; NA, non-accommodating area; A1, first accommodating area; A2, second accommodating area. DETAILED DESCRIPTION

[0037] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0039] In the existing display module, the display module includes a display panel and a cover plate. An adhesive layer needs to be set between the existing cover plate and the display panel. The adhesive layer is first covered on the cover plate or the display panel, and then the display panel or the cover plate is covered on the adhesive layer for assembly. However, during the bonding process, the display panel and the cover plate are easily separated, especially in display modules that need to be folded and medium and large-sized display modules, resulting in a decrease in the yield of the display module and a decrease in the service life.

[0040] Figure 1 A flowchart of a method for manufacturing a display module provided in an embodiment of the present application. Figure 2 A schematic cross-sectional structure diagram of a display module provided in an embodiment of the present application. Figures 3 to 5 A schematic diagram of the process structure of a method for manufacturing a display module provided in an embodiment of the present application.

[0041] In view of this, first of all, please refer to Figures 1 to 3 , the present application embodiment provides a method for preparing a display module, comprising the following steps:

[0042] S100 , disposing a first adhesive layer 10 on a surface of the display panel 100 facing the cover plate 200 .

[0043] Specifically, the display panel 100 has a display surface, and the light-emitting unit in the display panel 100 emits light to the outside through the display surface, and the first adhesive layer 10 covers the display surface. In some examples, the first adhesive layer 10 may include liquid optical adhesive. For example, the preparation method of the first adhesive layer 10 includes coating, UV curing and other processes. Optionally, the display panel 100 may include a bending area and a non-bending area. Exemplarily, the non-bending area includes two, and the two non-bending areas are connected by the bending area. After the bending area is bent, the two non-bending areas can be bonded together. The preparation method in the embodiment of the present application can be a preparation method for the bending area, and of course, it can also be a preparation method for bonding the entire surface of the display panel 100 and the cover plate 200.

[0044] UV curing refers to the use of ultraviolet rays to activate the photosensitizer in optical adhesive, causing it to undergo a chemical reaction, thereby curing the optical adhesive into the desired shape.

[0045] S200 , disposing a second adhesive layer 20 on a surface of the cover plate 200 facing the display panel 100 .

[0046] Specifically, the method for preparing the second adhesive layer 20 on the cover plate 200 may be the same as the method for preparing the first adhesive layer 10 on the display panel 100. Optionally, the material of the first adhesive layer 10 and the material of the second adhesive layer 20 may be the same, or may be different.

[0047] Exemplarily, the first adhesive layer 10 includes a first sublayer and a second sublayer, the second adhesive layer 20 includes a third sublayer and a fourth sublayer, the outermost surface of the display panel 100 facing the display surface may be an encapsulation layer or a polarizing layer, and the cover plate 200 may be UTG (Ultra-Thin Glass, ultra-thin flexible glass cover plate 200) or CPI (transparent polyimide flexible material). Taking the case where the outermost layer of the display panel 100 facing the display surface is a polarizing layer as an example, the bonding strength between the first sublayer and the polarizing layer is greater than the bonding strength between the second sublayer and the polarizing layer, so as to improve the interfacial force between the first adhesive layer 10 and the display panel 100 while reducing the preparation cost of the first adhesive layer 10, the bonding strength between the fourth sublayer and the cover plate 200 is greater than the bonding strength between the third sublayer and the cover plate 200, so as to improve the interfacial force between the second adhesive layer 20 and the display panel 100 while reducing the preparation cost of the second adhesive layer 20, the second sublayer and the third sublayer are made of the same material so that the second sublayer and the third sublayer after the first adhesive layer 10 and the second adhesive layer 20 are bonded in a subsequent step can blend with each other, thereby improving the bonding strength between the first adhesive layer 10 and the second adhesive layer 20.

[0048] S300 , attaching the display panel 100 with the first adhesive layer 10 and the cover plate 200 with the second adhesive layer 20 to each other, so that the first adhesive layer 10 and the second adhesive layer 20 form an adhesive layer 300 .

[0049] Specifically, the display panel 100 with the first adhesive layer 10 and the cover plate 200 with the second adhesive layer 20 are arranged opposite to each other, and the two are aligned and abutted against each other, so that the first adhesive layer 10 and the second adhesive layer 20 are bonded to each other to form a bonding layer.

[0050] In some embodiments, the first adhesive layer 10 and the second adhesive layer 20 are cured simultaneously by heat curing. The combined display panel 100 and cover plate 200 are placed under a heat source or in an environment with a curing temperature so that the first layer and the second layer are fused to form an adhesive layer 300.

[0051] An embodiment of the present application provides a display module, wherein adhesive layers are first formed on the surfaces of a display panel 100 and a cover plate 200, respectively, and then the display panel 100 and the cover plate 200 are bonded to each other by bonding the two adhesive layers to each other to form an adhesive layer, so as to improve the bonding interface force between the display panel 100 and the cover plate 200 and the adhesive layers, thereby reducing the possibility of separation of the display panel 100 and the cover plate 200, and further improving the reliability of the display module.

[0052] In some optional embodiments, before the step of respectively providing the first adhesive layer 10 on the surface of the side of the display panel 100 facing the cover plate 200 and on the surface of the side of the cover plate 200 facing the display panel 100, the step further includes:

[0053] S001 , performing dust removal treatment on a surface of the display panel 100 facing the cover plate 200 and a surface of the cover plate 200 facing the display panel 100 .

[0054] Optionally, in this embodiment and the following, the surface of one side of the display panel 100 facing the cover plate 200 is taken as the first surface, and the surface of one side of the cover plate 200 facing the display panel 100 is taken as the second surface. The first surface and the second surface need to be subjected to dust removal treatment on the entire surface. When the first layer is arranged in the bending area and the non-bending area of ​​the first surface, and the second layer is arranged in the bending area and the non-bending area of ​​the second surface, the first surface can be subjected to dust removal treatment once. When the first layer is arranged in the bending area of ​​the first surface, and the second layer is arranged in the bending area of ​​the second surface, a third layer can be arranged on the first surface or the second surface. When the third layer needs to be arranged, the surface on which the third layer is arranged can be subjected to dust removal treatment twice, that is, the first layer or the second layer and the third layer are prepared and formed in two processes. Of course, the first layer or the second layer and the third layer can also be prepared and formed by one preparation process. Optionally, the thickness of the third layer is equal to the thickness of the adhesive layer 300.

[0055] Optionally, the dust removal process includes a plasma treatment process.

[0056] In some optional embodiments, please refer to Figure 3 and Figure 4 , a first adhesive layer 10 is provided on a surface of the display panel 100 facing the cover plate 200 and includes:

[0057] S101 , disposing a first liquid adhesive layer 30 on a surface of the display panel 100 facing the cover plate 200 .

[0058] S102 , pre-curing the first liquid adhesive layer 30 to form the first liquid adhesive layer 30 .

[0059] In step S101, the first liquid glue layer 30 may cover the bending area and the non-bending area of ​​the display panel 100. After completing step S101, the display panel 100 with the first liquid glue layer 30 may be placed under a heat source or in an environment with a first curing temperature to achieve pre-curing of the first liquid glue layer 30.

[0060] In step S102, the curing degree of the first liquid adhesive layer 30 after being subjected to the heat source or the first curing temperature can be less than the curing degree of the adhesive layer 300, so that the first adhesive layer 10 and the second adhesive layer 20 can be fused with each other. Optionally, the curing degree of the first adhesive layer 10 can be changed by controlling the curing temperature value and the curing time.

[0061] In some optional embodiments, the step of disposing the first adhesive layer 10 on the surface of the display panel 100 facing the cover plate 200 includes step S103 .

[0062] Step S103 : grinding the first surface S1 of the first adhesive layer 10 facing away from the display panel 100 to reduce the roughness of the first surface S1 .

[0063] In step S103, when the first liquid adhesive layer 30 is cured to form the first adhesive layer 10, the first adhesive layer 10 has an uneven structure on the side facing away from the display panel 100, so that the roughness of the first surface S1 is relatively large. In the subsequent step of bonding the first adhesive layer 10 and the second adhesive layer 20 to each other, a gap is easily generated, resulting in bubbles in the formed adhesive layer. In step S103, the first surface S1 of the first adhesive layer 10 is polished smooth, thereby reducing the roughness of the first surface S1 to reduce the possibility of bubbles in the formed adhesive layer, thereby improving the manufacturing yield.

[0064] In some optional embodiments, please refer to Figure 3 and Figure 5 , a second adhesive layer 20 is provided on a surface of the cover plate 200 facing the display panel 100, including:

[0065] S201 , disposing a second liquid adhesive layer 40 on a surface of the cover plate 200 facing the display panel 100 .

[0066] S202 , pre-curing the second liquid adhesive layer 40 to form the second adhesive layer.

[0067] In step S201, the second liquid glue layer 40 may cover the bending area and the non-bending area of ​​the display panel 100. After completing step S201, the display panel 100 with the second liquid glue layer 40 may be placed under a heat source or in an environment with a second curing temperature to achieve pre-curing of the second liquid glue layer 40.

[0068] In step S202, the curing degree of the second liquid adhesive layer 40 after being subjected to the heat source or the second curing temperature can be less than the curing degree of the adhesive layer 300, so that the first adhesive layer 10 and the second adhesive layer 20 can be fused with each other. Optionally, the curing degree of the second adhesive layer 20 can be changed by controlling the curing temperature value and the curing time.

[0069] In some optional embodiments, the step of disposing the second adhesive layer 20 on the surface of the cover plate 200 facing the display panel 100 includes step S203 .

[0070] Step S203 : grinding the second surface S2 of the second adhesive layer 20 facing away from the cover plate 200 to reduce the roughness of the second surface S2 .

[0071] In step S203, when the second liquid adhesive layer 40 is cured to form the second adhesive layer 20, the second adhesive layer 20 has an uneven structure on the side facing away from the cover plate, so that the roughness of the second surface S2 is relatively large. In the subsequent step of bonding the first adhesive layer 10 and the second adhesive layer 20 to each other, gaps are easily generated, resulting in bubbles in the formed adhesive layer. In step S103, the second surface S2 of the second adhesive layer 20 is polished smooth, thereby reducing the roughness of the second surface S2 to reduce the possibility of bubbles in the formed adhesive layer, thereby improving the manufacturing yield.

[0072] Optionally, the first curing temperature and the second curing temperature may be different, so as to specifically improve the bonding strength between the first adhesive layer 10 and the display panel 100 and the bonding strength between the second adhesive layer 20 and the cover plate 200 .

[0073] In some optional embodiments, the display panel 100 with the first adhesive layer 10 and the cover plate 200 with the second adhesive layer 20 are attached to each other, and the first adhesive layer 10 and the second adhesive layer 20 form an adhesive layer 300, which includes:

[0074] The thickness of the first adhesive layer 10 is the same as the thickness of the second adhesive layer 20 .

[0075] In some embodiments, the first adhesive layer 10 entirely covers the first surface, and the second layer entirely covers the second surface. After the first adhesive layer 10 and the second adhesive layer 20 are bonded to each other, the first adhesive layer 10 and the second adhesive layer 20 are fused together at the bonding point to form a bonding layer, so as to reduce the redundant loss of the adhesive layer 300 material and reduce the preparation cost.

[0076] It can be understood that the thickness of the first adhesive layer 10 is the same as the thickness of the second adhesive layer 20. Here, "same thickness" includes the same thickness of the two adhesive layers and a certain thickness difference is allowed to exist to a certain extent. For example, if the difference between the thickness of the first adhesive layer and the thickness of the second adhesive layer does not exceed 5% of the total thickness of the first adhesive layer or the second adhesive layer, the thickness of the first adhesive layer and the thickness of the second adhesive layer are considered to be the same. Of course, in some other examples, the percentage of the thickness difference to the total thickness can also be other percentages.

[0077] Figure 6 A schematic diagram of a display panel and a cover plate in a display module provided in an embodiment of the present application.

[0078] Figure 7 A schematic diagram of a display panel and a cover plate in another display module provided in an embodiment of the present application.

[0079] Figures 8 to 13 A schematic diagram of the process structure of a method for manufacturing a display module provided in an embodiment of the present application.

[0080] In some optional embodiments, please refer to Figure 3 , Figures 6 to 9 The surface of the display panel 100 facing the cover plate 200 and the surface of the cover plate 200 facing the display panel 100 both include an accommodating area AA and a non-accommodating area NA. The display panel 100 and the cover plate 200 both include a plurality of accommodating areas AA and a plurality of non-accommodating areas NA, and the plurality of accommodating areas AA and the plurality of non-accommodating areas NA of the display panel 100 are arranged alternately. The plurality of accommodating areas AA and the plurality of non-accommodating areas NA of the cover plate 200 are arranged alternately.

[0081] It can be understood that the accommodating area AA may be an area provided with a glue layer, for example, the accommodating area AA on the side surface of the display panel 100 facing the cover plate 200, that is, the area on the side surface of the display panel 100 facing the cover plate 200 where the glue layer is provided. Similarly, the accommodating area AA on the side surface of the cover plate 200 facing the display panel 100, that is, the area on the side surface of the cover plate 200 facing the display panel 100 where the glue layer is provided. The non-accommodating area NA may be an area not provided with a glue layer, for example, the non-accommodating area NA on the side surface of the display panel 100 facing the cover plate 200, that is, the area on the side surface of the display panel 100 facing the cover plate 200 where the glue layer is not provided. Similarly, the non-accommodating area NA on the side surface of the cover plate 200 facing the display panel 100, that is, the area on the side surface of the cover plate 200 facing the display panel 100 where the glue layer is not provided.

[0082] In some embodiments, the number of accommodating areas AA may include one, and the non-accommodating area NA is arranged around the accommodating area. In other embodiments, the number of accommodating areas AA may include multiple, and the non-accommodating area NA separates multiple accommodating areas. Optionally, multiple accommodating areas AA and multiple non-accommodating areas NA may be arranged in an array along the first direction and the second direction.

[0083] Optionally, the accommodating area AA of the first surface and the accommodating area AA of the second surface may be of the same shape or of different shapes. Exemplarily, the shapes of the accommodating area AA of the first surface and the accommodating area AA of the second surface are both rectangular, and the shapes of the non-accommodating area NA of the first surface and the non-accommodating area NA of the second surface are both annular. Alternatively, the shape of the accommodating area AA of the first surface is rectangular, the shape of the non-accommodating area NA of the first surface is annular, the shape of the accommodating area AA of the second surface is annular, and the shape of the non-accommodating area NA of the second surface is rectangular.

[0084] S100, disposing a first adhesive layer 10 on a surface of the display panel 100 facing the cover plate 200 includes:

[0085] S110 , forming a first adhesive layer 10 in the accommodating area AA of the display panel 100 .

[0086] It is understandable that step S110 is only used to distinguish from steps S101 to S103, and is not a sequential step.

[0087] In some embodiments, steps S101 to S103 may be performed in the accommodating area AA.

[0088] In some examples, a first liquid adhesive layer 30 is formed in the accommodating area AA, and the first adhesive layer 10 is formed after step S102 and step S103 are performed.

[0089] In some embodiments, step S101 may be performed in both the accommodating area AA and the non-accommodating area NA, and the first liquid glue layer 30 in the accommodating area AA may be pre-cured to remove the first glue layer 30 in the non-accommodating area NA. Optionally, the first liquid glue layer 30 in the accommodating area AA may be pre-cured by laser curing.

[0090] S200, disposing a second adhesive layer 20 on a surface of the cover plate 200 facing the display panel 100 includes:

[0091] S210 , forming a second adhesive layer 20 in the accommodating area AA of the cover plate 200 .

[0092] It is understandable that step S210 is only used to distinguish from steps S201 to S203, and is not a sequential step.

[0093] In some embodiments, steps S201 to S203 may be performed in the accommodating area AA.

[0094] In some examples, a second liquid adhesive layer 40 is formed in the accommodating area AA, and the second adhesive layer 20 is formed after step S202 and step S203 are performed.

[0095] In some embodiments, step S201 may be performed in both the accommodating area AA and the non-accommodating area NA, and the second liquid glue layer 40 in the accommodating area AA may be pre-cured to remove the second liquid glue layer 40 in the non-accommodating area NA. Optionally, the second liquid glue layer 40 in the accommodating area AA may be pre-cured by laser curing.

[0096] In some optional embodiments, please refer to Figure 8 , bonding the display panel 100 with the first adhesive layer 10 and the cover plate 200 with the second adhesive layer 20 to each other includes:

[0097] S310, the accommodation area AA of the display panel 100 is arranged opposite to the non-accommodation area NA of the cover plate 200, and the non-accommodation area NA of the display panel 100 is arranged opposite to the accommodation area of ​​the cover plate 200, so that the first glue layer 10 formed on the display panel 100 is embedded in the non-accommodation area NA of the cover plate 200, and the second glue layer 20 formed on the cover plate 200 is embedded in the non-accommodation area NA of the display panel 100.

[0098] Take the example of multiple accommodating areas AA and multiple non-accommodating areas NA being arranged in an array.

[0099] Exemplarily, the accommodation area AA of the first surface and the non-accommodation area NA of the second surface are arranged in a one-to-one correspondence, and the non-accommodation area NA of the first surface and the accommodation area AA of the second surface are arranged in a one-to-one correspondence, that is, the first glue layer 10 in each accommodation area AA of the first surface is embedded in each non-accommodation area NA of the second surface, and the second glue layer 20 in each accommodation area AA of the second surface is embedded in each non-accommodation area NA of the first surface. Optionally, the area of ​​the non-accommodation area NA can be larger than the area of ​​the accommodation area AA, so that after the first glue layer 10 is embedded in the non-accommodation area NA, there is a gap between the first glue layer 10 and the second glue layer 20, and the gap can be an overflow space to reduce the risk of part of the adhesive material overflowing to the area outside the display panel 100 and the cover plate 200 after the first glue layer 10 and the second glue layer 20 are attached to each other.

[0100] Exemplarily, a plurality of accommodating areas AA on the first surface are arranged corresponding to a non-accommodating area NA on the second surface, and a non-accommodating area NA on the first surface is arranged corresponding to a plurality of accommodating areas AA on the second surface. A plurality of accommodating areas AA form an accommodating area AA block, and one accommodating area block is arranged corresponding to a non-accommodating area NA. In the accommodating area AA block, a plurality of accommodating areas AA can be arranged with gaps, so that a plurality of first adhesive layers 10 arranged with gaps are arranged in the accommodating area AA block, and the gaps can form an overflow glue space. The first adhesive layer 10 in each accommodating area AA block on the first surface is embedded in the non-accommodating area NA on the second surface, and the second adhesive layer 20 in each accommodating area AA block on the second surface is embedded in the non-accommodating area NA on the first surface.

[0101] The embodiment of the present application is advantageous in increasing the contact area between the first adhesive layer 10 and the second adhesive layer 20 through the above implementation, so that the first adhesive layer 10 and the second adhesive layer 20 form a mutually interlocking structure, further improving the bonding reliability of the formed adhesive layer 300.

[0102] In some optional embodiments, please refer to Fig. 9 , bonding the display panel 100 with the first adhesive layer 10 and the cover plate 200 with the second adhesive layer 20 to each other includes:

[0103] S320 , disposing the accommodation area AA of the display panel 100 opposite to the accommodation area of ​​the cover plate 200 , and disposing the non-accommodation area NA of the display panel 100 opposite to the non-accommodation area of ​​the cover plate 200 , so that the first adhesive layer 10 and the second adhesive layer 20 abut against each other.

[0104] Optionally, the first adhesive layer 10 has a thickness of 4 μm to 6 μm.

[0105] Take the example of multiple accommodating areas AA and multiple non-accommodating areas NA being arranged in an array.

[0106] Exemplarily, the accommodating area AA of the first surface and the accommodating area AA of the second surface are arranged in a one-to-one correspondence, and the non-accommodating area NA of the first surface and the non-accommodating area NA of the second surface are arranged in a one-to-one correspondence, that is, the first glue layer 10 in each accommodating area AA of the first surface and the second glue layer 20 in each accommodating area AA of the second surface are arranged abutting against each other, and the non-accommodating area NA can form an overflow glue space. When the first glue layer 10 and the second glue layer 20 are fused with each other, a part of them flows into the overflow glue space to fill the non-accommodating area NA to form an adhesive layer 300, which is beneficial to reduce the thickness of the formed adhesive layer 300, thereby reducing the overall thickness of the display module.

[0107] Exemplarily, a plurality of accommodating areas AA on the first surface are arranged correspondingly to one accommodating area AA on the second surface; or, one accommodating area AA on the first surface is arranged correspondingly to a plurality of accommodating areas AA on the second surface.

[0108] For example, multiple accommodating areas AA on the first surface are arranged corresponding to an accommodating area AA on the second surface, that is, multiple first adhesive layers 10 on the first surface are arranged in abutment with a second adhesive layer 20 on the second surface, and the gaps between the multiple first adhesive layers 10 and the non-accommodating area NA can form an overflow glue space. When the first adhesive layer 10 and the second adhesive layer 20 are fused with each other, a part of them flows into the overflow glue space to fill the non-accommodating area NA to form an adhesive layer 300, which is beneficial to reducing the thickness of the formed adhesive layer 300, thereby reducing the overall thickness of the display module.

[0109] In some optional embodiments, please refer to Fig.10 The surface of the display panel 100 facing the cover plate 200 and the surface of the cover plate facing the display panel 100 both include a first accommodating area A1 and a second accommodating area A2.

[0110] Optionally, the first accommodating area A1 and the second accommodating area A2 may be arranged at an interval, and a non-accommodating area NA may be provided between the first accommodating area A1 and the second accommodating area A2.

[0111] Optionally, the first accommodating area A1 and the second accommodating area A2 may be arranged to fit in with each other.

[0112] Exemplarily, the shapes of the first accommodating area A1 and the second accommodating area A2 both have an opening and an enclosure portion enclosing the opening, a portion of the enclosure portion of the second accommodating area A2 is disposed in the opening of the first accommodating area A1, and a portion of the enclosure portion of the first accommodating area A1 is disposed in the opening of the second accommodating area A2.

[0113] S100, disposing a first adhesive layer 10 on a surface of the display panel 100 facing the cover plate 200 includes:

[0114] S120 , forming a first glue portion 11 in the first accommodating area A1 of the display panel 100 , and forming a second glue portion 12 in the second accommodating area A2 of the display panel 100 , wherein the thickness of the first glue portion 11 is greater than the thickness of the second glue portion 12 , and the first glue portion 11 and the second glue portion 12 form a first glue layer 10 .

[0115] Optionally, the first adhesive portion 11 and the second adhesive portion 12 may be formed by one manufacturing process.

[0116] Exemplarily, a first liquid glue layer 30 is formed on the display panel 100, and the first accommodating area A1 and the second accommodating area A2 are irradiated respectively by laser curing, and the first glue part 11 and the second glue part 12 with different thicknesses are formed by controlling factors such as light intensity and light exposure time.

[0117] In some other embodiments, the first adhesive portion 11 and the second adhesive portion 12 may also be formed through two preparation processes.

[0118] Optionally, there are multiple first accommodating areas A1, and the number of the first adhesive portions 11 and the number of the first accommodating areas A1 are arranged in a one-to-one correspondence.

[0119] Optionally, there are multiple second accommodating areas A2, and the number of the second adhesive portions 12 and the number of the second accommodating areas A2 are arranged in a one-to-one correspondence.

[0120] Optionally, the shapes and thicknesses of the plurality of first adhesive portions 11 may be the same, or may be different.

[0121] Optionally, the shapes and thicknesses of the plurality of second adhesive portions 12 may be the same, or may be different.

[0122] S200, disposing a second adhesive layer 20 on a surface of the cover plate 200 facing the display panel 100 includes:

[0123] S220 , forming a third adhesive portion 21 in the first accommodating area A1 of the cover plate 200 , forming a fourth adhesive portion 22 in the second accommodating area A2 of the cover plate 200 , the thickness of the third adhesive portion 21 being greater than the thickness of the fourth adhesive portion 22 , and the third adhesive portion 21 and the fourth adhesive portion 22 forming a second adhesive layer 20 .

[0124] Optionally, the preparation process of the third adhesive portion 21 and the fourth adhesive portion 22 may be the same as the preparation process of the first adhesive portion 11 and the second adhesive portion 12 .

[0125] Optionally, the thickness of the first adhesive portion 11 may be equal to, greater than, or less than the thickness of the third adhesive portion 21 .

[0126] Optionally, the thickness of the second adhesive portion 12 may be equal to, greater than, or less than the thickness of the fourth adhesive portion 22 .

[0127] Optionally, there are multiple first accommodating areas A1, and the number of the third adhesive portions 21 and the number of the first accommodating areas A1 are arranged in a one-to-one correspondence.

[0128] Optionally, there are multiple second accommodating areas A2, and the number of the fourth adhesive portions 22 and the number of the second accommodating areas A2 are arranged in a one-to-one correspondence.

[0129] Optionally, the shapes and thicknesses of the plurality of fourth adhesive portions 22 may be the same, or may be different.

[0130] Optionally, the shapes and thicknesses of the plurality of second adhesive portions 12 may be the same, or may be different.

[0131] S300, laminating the display panel 100 with the first adhesive layer 10 and the cover plate 200 with the second adhesive layer 20 to each other includes:

[0132] S330 , the first adhesive portion 11 and the fourth adhesive portion 22 are attached to each other, and the second adhesive portion 12 and the third adhesive portion 21 are attached to each other to form an adhesive layer 300 .

[0133] Optionally, the sum of the thicknesses of the first adhesive portion 11 and the fourth adhesive portion 22 is equal to the sum of the thicknesses of the second adhesive portion 12 and the third adhesive portion 21 .

[0134] Since the thickness of the first glue part 11 and the second glue part 12 are different, and the thickness of the third glue part 21 and the fourth glue part 22 are different, the glue parts of different thicknesses of the display panel 100 and the cover plate 200 are bonded to each other during the bonding process, and the bonding surface of the first glue layer 10 and the second glue layer 20 is changed from a complete plane to multiple small bonding surfaces, thereby reducing the possibility of separation of the bonding surfaces due to insufficient bonding strength. In addition, bonding of glue parts of different thicknesses to each other can also reduce the overall thickness of the adhesive layer 300.

[0135] In some optional embodiments, please refer to Fig.11 A portion of the first adhesive portion 11 is embedded between the third adhesive portion 21 and the fourth adhesive portion 22 , and a portion of the third adhesive portion 21 is embedded between the first adhesive portion 11 and the second adhesive portion 12 .

[0136] Optionally, the shape of the first adhesive part 11 may be stepped along the thickness direction, for example, the first adhesive part 11 includes a first stepped part 111 and a second stepped part 112 stacked in the thickness direction, the first stepped part 111 includes a first stepped surface 113, the second stepped part 112 is arranged on the first stepped surface 113, and the orthographic projection of the second stepped part 112 on the first stepped surface 113 is located inside the first stepped surface 113. In the process of the display panel 100 and the cover plate 200 being attached to each other, the first stepped surface 113 and the fourth adhesive part 22 are attached to each other, and the second stepped part 112 is embedded between the third adhesive part 21 and the fourth adhesive part 22. Optionally, a non-accommodating area NA is provided between the third adhesive part 21 and the fourth adhesive part 22, and the second stepped part 112 is embedded in the non-accommodating area NA. Further, the side wall of the second stepped part 112 may abut against the side wall of at least one of the third adhesive part 21 and the fourth adhesive part 22.

[0137] Optionally, the shape of the third adhesive part 21 may be stepped along the thickness direction, for example, the third adhesive part 21 includes a third stepped part 211 and a fourth stepped part 212 stacked in the thickness direction, the third stepped part 211 includes a second stepped surface 213, the fourth stepped part 212 is arranged on the second stepped surface 213, and the orthographic projection of the fourth stepped part 212 on the second stepped surface 213 is located inside the second stepped surface 213. In the process of the display panel 100 and the cover plate 200 being attached to each other, the second stepped surface 213 and the second adhesive part 12 are attached to each other, and the fourth stepped part 212 is embedded between the first adhesive part 11 and the second adhesive part 12. Optionally, a non-accommodating area NA is provided between the first adhesive part 11 and the second adhesive part 12, and the fourth stepped part 212 is embedded in the non-accommodating area NA. Further, the side wall of the fourth stepped part 212 may abut against the side wall of at least one of the first adhesive part 11 and the second adhesive part 12.

[0138] In the embodiment of the present application, the above configuration is helpful to increase the bonding area between the first adhesive layer 10 and the second adhesive layer 20, further improve the bonding strength between the first adhesive layer 10 and the second adhesive layer 20, and improve the reliability of the display module.

[0139] In some optional embodiments, please refer to Fig.12 and Fig.13 The step of disposing the first adhesive layer 10 on the surface of the display panel 100 facing the cover plate 200 includes step S130.

[0140] Step S130, setting a fifth glue portion 13 and multiple sixth glue portions 14 on the side surface of the display panel 100 facing the cover plate 200, the fifth glue portion 13 covers the multiple sixth glue portions 14 and the side surface of the display panel 100 facing the cover plate 200, the bonding strength of the sixth glue portion 14 is greater than the bonding strength of the fifth glue portion 13, and the fifth glue portion 13 and the multiple sixth glue portions 14 form a first glue layer.

[0141] Optionally, the fifth adhesive part 13 may be a whole film layer, and after a plurality of sixth adhesive parts 14 are prepared on the surface of the display panel 100 facing the cover plate 200, the whole layer covers the fifth adhesive part 13 to increase the bonding area between the fifth adhesive part 13 and the display panel 100, and improve the bonding strength of the sixth adhesive part 14 to the fifth adhesive part 13 and the display panel 100, further improving the bonding strength of the adhesive layer. Optionally, the fifth adhesive part 13 and the sixth adhesive part 14 may also be both arranged in the accommodation area of ​​the display panel 100, and the fifth adhesive part 13 covers the sixth adhesive part 14 and the surface of the accommodation area not covered by the sixth adhesive part 14.

[0142] The step of disposing a second adhesive layer on a surface of the cover plate 200 facing the display panel 100 includes step S230 .

[0143] Step S230, setting the seventh glue part 23 and multiple eighth glue parts 24 on the side surface of the cover plate 200 facing the display panel 100, the seventh glue part 23 covers the multiple eighth glue parts 24 and the side surface of the display panel 100 facing the cover plate 200, the bonding strength of the eighth glue part 24 is greater than the bonding strength of the seventh glue part 23, and the seventh glue part 23 and the multiple eighth glue parts 24 form a second glue layer.

[0144] Optionally, the seventh adhesive part 23 can be a whole film layer, and after a plurality of eighth adhesive parts 24 are prepared on the surface of the display panel 100 facing the cover plate 200, the whole layer covers the seventh adhesive part 23 to increase the bonding area between the seventh adhesive part 23 and the display panel 100, and improve the bonding strength of the eighth adhesive part 24 to the seventh adhesive part 23 and the display panel 100, further improving the bonding strength of the adhesive layer. Optionally, the seventh adhesive part 23 and the eighth adhesive part 24 can also be both arranged in the accommodation area of ​​the display panel 100, and the seventh adhesive part 23 covers the eighth adhesive part 24 and the surface of the accommodation area not covered by the eighth adhesive part 24.

[0145] Optionally, a plurality of sixth adhesive portions 14 are arranged in an array.

[0146] Optionally, a plurality of eighth adhesive portions 24 are arranged in an array.

[0147] Exemplarily, the sixth adhesive parts 14 are arranged in an array along the first direction and the second direction. The eighth adhesive parts 24 are arranged in an array along the first direction and the second direction. In some embodiments, in the thickness direction of the display module, the sixth adhesive part 14 and the eighth adhesive part 24 may not overlap.

[0148] Optionally, along the thickness direction of the display module, at least part of the sixth adhesive portions 14 among the plurality of sixth adhesive portions 14 and at least part of the eighth adhesive portions 24 among the plurality of eighth adhesive portions 24 are at least partially overlapped.

[0149] Exemplarily, the projections of the plurality of sixth adhesive parts 14 in the thickness direction of the display module overlap with the projections of the plurality of eighth adhesive parts 24 in the thickness direction one-to-one. Alternatively, the projections of the plurality of sixth adhesive parts 14 in the thickness direction of the display module overlap with the projections of the plurality of eighth adhesive parts 24 in the thickness direction one-to-one. Of course, it is also possible that the projections of a portion of the sixth adhesive parts 14 in the thickness direction of the display module overlap with the projections of a portion of the eighth adhesive parts 24 in the thickness direction one-to-one. Alternatively, the projections of a portion of the sixth adhesive parts 14 in the thickness direction of the display module overlap with the projections of a portion of the eighth adhesive parts 24 in the thickness direction one-to-one.

[0150] Optionally, a projection area of ​​the sixth adhesive portion 14 along the thickness direction and a projection area of ​​the eighth adhesive portion 24 along the thickness direction are the same.

[0151] Optionally, a projection area of ​​the sixth adhesive portion 14 along the thickness direction and a projection area of ​​the eighth adhesive portion 24 along the thickness direction are different.

[0152] Exemplarily, one of the projection area of ​​the sixth adhesive portion 14 along the thickness direction and the projection area of ​​the eighth adhesive portion 24 along the thickness direction is larger than the other. For example, the projection area of ​​the sixth adhesive portion 14 along the thickness direction is larger than the projection area of ​​the eighth adhesive portion 24 along the thickness direction.

[0153] The embodiment of the second aspect of the present application also provides a display module, which is prepared by the preparation method of any of the above-mentioned first aspect embodiments. Since the display device provided by the embodiment of the second aspect of the present application is prepared by the preparation method of any of the above-mentioned first aspect embodiments, the display module provided by the embodiment of the second aspect of the present application has the beneficial effects of the preparation method of any of the above-mentioned first aspect embodiments, which will not be repeated here.

[0154] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0155] Although the embodiments disclosed in this application are as above, the contents described are only embodiments adopted for facilitating the understanding of this application and are not intended to limit the present invention. Any technician in the technical field to which this application belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in this application, but the scope of protection of this application shall still be subject to the scope defined in the attached claims.

[0156] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the replacement of other connection methods described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of the present application.

Claims

1. A method for preparing a display module, characterized in that: The preparation method comprises: A first adhesive layer is disposed on a surface of the display panel facing the cover plate; A second adhesive layer is disposed on a surface of the cover plate on one side facing the display panel; The display panel with the first adhesive layer and the cover plate with the second adhesive layer are bonded to each other, and the first adhesive layer and the second adhesive layer form an adhesive layer.

2. The preparation method according to claim 1, characterized in that: Before the step of respectively providing a first adhesive layer on a surface of the display panel facing the cover plate and a surface of the cover plate facing the display panel, the step further includes: Performing dust removal treatment on a side surface of the display panel facing the cover plate and a side surface of the cover plate facing the display panel; Preferably, the dust removal process includes a plasma treatment process.

3. The preparation method according to claim 1, characterized in that: Providing a first adhesive layer on a surface of the display panel facing the cover plate includes: Disposing a first liquid glue layer on a surface of the display panel facing the cover plate; pre-curing the first liquid adhesive layer so that the first liquid adhesive layer forms a first adhesive layer; Preferably, the step of providing a first adhesive layer on a surface of the display panel facing the cover plate includes: The first surface of the first adhesive layer on a side facing away from the display panel is polished to reduce the roughness of the first surface.

4. The preparation method according to claim 1, characterized in that: Providing a second adhesive layer on a surface of the cover plate facing the display panel includes: A second liquid glue layer is disposed on a surface of the cover plate facing the display panel; pre-curing the second liquid adhesive layer so that the second liquid adhesive layer forms a second adhesive layer; Preferably, the step of providing a second adhesive layer on a surface of the cover plate facing the display panel includes: The second surface of the second adhesive layer facing away from the cover plate is polished to reduce the roughness of the second surface.

5. The preparation method according to claim 1, characterized in that: The display panel with the first adhesive layer and the cover plate with the second adhesive layer are bonded to each other, wherein the first adhesive layer and the second adhesive layer form an adhesive layer, comprising: The thickness of the first adhesive layer is the same as the thickness of the second adhesive layer.

6. The preparation method according to claim 1, characterized in that: A side surface of the display panel facing the cover plate and a side surface of the cover plate facing the display panel both include an accommodation area and a non-accommodation area; Providing a first adhesive layer on a surface of the display panel facing the cover plate includes: forming the first adhesive layer in the accommodation area of ​​the display panel; Providing a second adhesive layer on a surface of the cover plate facing the display panel includes: forming the second adhesive layer in the accommodation area of ​​the cover plate; Preferably, the display panel and the cover plate both include a plurality of the accommodating areas and a plurality of the non-accommodating areas, the plurality of the accommodating areas and the plurality of the non-accommodating areas of the display panel are arranged alternately, and the plurality of the accommodating areas and the plurality of the non-accommodating areas of the cover plate are arranged alternately.

7. The preparation method according to claim 6, characterized in that: Bonding the display panel with the first adhesive layer and the cover plate with the second adhesive layer to each other comprises: The accommodation area of ​​the display panel is arranged opposite to the non-accommodation area of ​​the cover plate, and the non-accommodation area of ​​the display panel is arranged opposite to the accommodating area of ​​the cover plate, so that the first glue layer formed on the display panel is embedded in the non-accommodation area of ​​the cover plate, and the second glue layer formed on the cover plate is embedded in the non-accommodation area of ​​the display panel.

8. The preparation method according to claim 6, characterized in that: Bonding the display panel with the first adhesive layer and the cover plate with the second adhesive layer to each other comprises: The accommodation area of ​​the display panel is arranged opposite to the accommodation area of ​​the cover plate, and the non-accommodation area of ​​the display panel is arranged opposite to the non-accommodation area of ​​the cover plate, so that the first adhesive layer abuts against the second adhesive layer.

9. The preparation method according to claim 1 or 8, characterized in that: A side surface of the display panel facing the cover plate and a side surface of the cover plate facing the display panel both include a first accommodating area and a second accommodating area; Providing a first adhesive layer on a surface of the display panel facing the cover plate includes: forming a first adhesive portion in the first accommodating area of ​​the display panel, and forming a second adhesive portion in the second accommodating area of ​​the display panel, wherein the thickness of the first adhesive portion is greater than that of the second adhesive portion, and the first adhesive portion and the second adhesive portion form the first adhesive layer; Providing a second adhesive layer on a surface of the cover plate facing the display panel includes: A third adhesive portion is formed in the first accommodation area of ​​the cover plate, and a fourth adhesive portion is formed in the second accommodation area of ​​the cover plate, wherein the thickness of the third adhesive portion is greater than that of the fourth adhesive portion, and the third adhesive portion and the fourth adhesive portion form the second adhesive layer; Bonding the display panel with the first adhesive layer and the cover plate with the second adhesive layer to each other comprises: The first adhesive portion and the fourth adhesive portion are bonded to each other, and the second adhesive portion and the third adhesive portion are bonded to each other to form the adhesive layer.

10. The preparation method according to claim 9, characterized in that: A portion of the first adhesive portion is embedded between the third adhesive portion and the fourth adhesive portion, and a portion of the third adhesive portion is embedded between the first adhesive portion and the second adhesive portion.

11. The preparation method according to claim 1, characterized in that: The step of providing a first adhesive layer on a surface of the display panel facing the cover plate includes: A fifth glue portion and a plurality of sixth glue portions are arranged on a surface of the display panel facing the cover plate, the fifth glue portion covers the plurality of sixth glue portions and a surface of the display panel facing the cover plate, the bonding strength of the sixth glue portion is greater than the bonding strength of the fifth glue portion, and the fifth glue portion and the plurality of sixth glue portions form the first glue layer; The step of providing a second adhesive layer on a surface of the cover plate facing the display panel includes: A seventh adhesive portion and a plurality of eighth adhesive portions are arranged on a surface of the cover plate facing the display panel, the seventh adhesive portion covers the plurality of eighth adhesive portions and a surface of the display panel facing the cover plate, the bonding strength of the eighth adhesive portion is greater than the bonding strength of the seventh adhesive portion, and the seventh adhesive portion and the plurality of eighth adhesive portions form the second adhesive layer; Preferably, the plurality of sixth adhesive portions are arranged in an array; Preferably, the plurality of eighth adhesive portions are arranged in an array; Preferably, along the thickness direction of the display module, at least part of the sixth adhesive parts among the plurality of sixth adhesive parts and at least part of the eighth adhesive parts among the plurality of eighth adhesive parts are at least partially overlapped.

12. A display module, characterized in that: The method is prepared by any one of claims 1 to 11.

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