Display module, preparation method thereof and display device

Abstract

The invention provides a display module, a preparation method thereof and a display device. The display module comprises a display screen body, a polaroid and an adhesive layer. The display screen body comprises a display part and a bending part located on one side of the display part. The polaroid comprises a polarizing layer and a bonding layer which are stacked, and the orthographic projection of the edge of one side of the bonding layer on the polarizing layer is located in the polarizing layer and does not cover the edge of the polarizing layer. The polaroid is located on the light emitting side of the display part, the bonding layer is located between the display screen body and the polarizing layer, and the edge of one side of the bonding layer is close to the bending part. The adhesive layer covers the bending part and extends to the position between the polarizing layer and the display screen body to make contact with the bonding layer. The bonding layer, close to one side of the display screen body, of the polaroid in the display module is provided with the notch, so that the gap is formed between the polaroid and the display screen body, the adhesive layer covering the bending area is arranged to fill the gap, the bonding area of the adhesive layer and the polaroid is increased, the probability that the edge of the adhesive layer tilts is effectively reduced, and the service life of the display module is prolonged. Therefore, the preparation yield of the display module is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display module and a preparation method thereof, and a display device. Background Art

[0002] With the development of science and technology, display devices have also developed accordingly, and people have higher and higher requirements for display devices. Narrow-frame display devices have received widespread attention due to their large screen-to-body ratio.

[0003] However, existing narrow-frame display devices still have problems such as low manufacturing yield. Summary of the invention

[0004] The embodiments of the present application provide a display module, a method for manufacturing the same, and a display device, so as to improve the problem of low yield in display module manufacturing.

[0005] In a first aspect, a display module is provided, the display module comprising a display screen, a polarizer and an adhesive layer. The display screen comprises a display portion and a bending portion located on one side of the display portion. The polarizer comprises a stacked polarizing layer and an adhesive layer, the orthographic projection of an edge of one side of the adhesive layer on the polarizing layer is located within the polarizing layer and does not cover the edge of the polarizing layer; the polarizer is located on the light-emitting side of the display portion, the adhesive layer is located between the display screen and the polarizing layer, and one side edge of the adhesive layer is close to the bending portion. The adhesive layer covers the bending portion and extends between the polarizing layer and the display screen until it contacts the adhesive layer.

[0006] In combination with the first aspect, in certain implementations of the first aspect, a minimum distance between an orthographic projection of a side edge on the polarizing layer and an edge of the polarizing layer is greater than or equal to 0.1 mm and less than or equal to 0.5 mm.

[0007] In combination with the first aspect, in certain implementations of the first aspect, a minimum distance between an orthographic projection of an edge of one side of the adhesive layer on the polarizing layer and an edge of the polarizing layer is 0.3 mm.

[0008] In combination with the first aspect, in certain implementations of the first aspect, the thickness of the adhesive layer is greater than or equal to 0.01 mm and less than or equal to 0.03 mm.

[0009] In combination with the first aspect, in certain implementations of the first aspect, the thickness of the adhesive layer is 0.02 mm.

[0010] In a second aspect, a method for preparing a display module is provided, comprising:

[0011] Providing a polarizing layer;

[0012] Preparing an adhesive layer on one side of the polarizing layer;

[0013] Removing an edge portion of one side of the adhesive layer so that the orthographic projection of the edge of one side of the adhesive layer on the polarizer is located within the polarizer layer, thereby obtaining a polarizer;

[0014] A display screen is provided, wherein the display screen comprises a display portion and a portion to be bent located on one side of the display portion;

[0015] A polarizing film is attached to the light-emitting side of the display screen, the polarizing film is located on the light-emitting side of the display part, an adhesive layer is located between the polarizing layer and the display screen, and a gap area is formed between the polarizing layer and the display screen at one edge of the adhesive layer;

[0016] Prepare an adhesive layer on the surface of the part to be bent close to the polarizer and the gap area;

[0017] The bending portion and the adhesive layer are bent to obtain a display module.

[0018] In conjunction with the second aspect, in certain implementations of the second aspect, preparing the adhesive layer on the portion to be bent and the gap area includes:

[0019] Apply liquid glue to the part to be bent and the gap area;

[0020] The liquid glue is cured to obtain a glue layer.

[0021] In conjunction with the second aspect, in some implementations of the second aspect, removing the edge portion of one side of the adhesive layer includes:

[0022] The edge portion of one side of the bonding layer is removed using a laser process.

[0023] In a third aspect, a display device is provided, comprising any one of the display modules described above.

[0024] The present application provides a display module, a preparation method thereof, and a display device. The display module includes a display screen, a polarizer, and an adhesive layer. The display screen includes a display portion and a bending portion located on one side of the display portion. The polarizer includes a stacked polarizing layer and an adhesive layer, and the orthographic projection of an edge of one side of the adhesive layer on the polarizing layer is located within the polarizing layer and does not cover the edge of the polarizing layer; the polarizer is located on the light-emitting side of the display portion, the adhesive layer is located between the display screen and the polarizing layer, and one side edge of the adhesive layer is close to the bending portion. The adhesive layer covers the bending portion and extends between the polarizing layer and the display screen until it contacts the adhesive layer.

[0025] In the embodiment of the present application, a gap is formed between the polarizer and the display screen by setting a notch in the adhesive layer on the side of the polarizer in the display module close to the display screen, and a glue layer covering the bending area is set to fill the gap, thereby increasing the bonding area between the glue layer and the polarizer, effectively reducing the probability of warping of the edge of the glue layer, and thus improving the preparation yield of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0027] Figure 1a It is a schematic diagram of the cross-sectional structure of the display module of the prior art.

[0028] Figure 1b for Figure 1a The display module is shown in a top view.

[0029] Figure 2 It is a schematic diagram of the cross-sectional structure of the prior art display module with one end of the adhesive layer raised.

[0030] Figure 3a It is a schematic diagram of the cross-sectional structure of a display module in one embodiment of the present application.

[0031] Figure 3b for Figure 3a Magnified view of the dashed area.

[0032] Figure 4 for Figure 3a The polarizer of the display module is shown in a top view in the direction where the adhesive layer points to the polarizing layer.

[0033] Figure 5 It is a schematic diagram of the cross-sectional structure of a display module in one embodiment of the present application.

[0034] Figure 6 It is a flow chart of a method for assembling a display module in one embodiment of the present application.

[0035] Figure 7 Flow chart of a method for manufacturing a polarizer in one embodiment of the present application. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that 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 examples of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application. The features and exemplary embodiments of various aspects of the present application will be described in detail below.

[0037] Figure 1a It is a schematic diagram of the cross-sectional structure of a display module in the prior art. Figure 1b for Figure 1a The top view of the display module is shown in FIG. Figure 1a As shown, the display module includes a stacked display screen 10 and a polarizer 20, the display screen 10 includes a display portion 11 and a bending portion 12 located on one side of the display portion 11, and the polarizer 20 is located on the light-emitting side of the display portion 11. The display module also includes an adhesive layer 30, which covers the bending portion and extends to contact the polarizer 20. In addition, as shown in FIG. Figure 1a and Figure 1b As shown, the display screen 10 further includes a display area AA and a frame area BA surrounding the display area AA.

[0038] As described in the background technology, with the development of display technology, narrow-frame devices have received more and more attention. Referring to the above figure, as the frame area BA is continuously compressed, the distance a between the glue coating starting point M of the glue layer 30 and the bending starting point N of the glue layer 30 is also continuously reduced. This means that the position of the glue coating starting point M will accumulate more bending stress. When the bending stress at the glue coating starting point M of the glue layer 30 is greater than the adhesion between the glue layer 30 and the display screen 10, the glue layer 30 will be lifted at the glue coating starting point M, that is, it will be peeled off from the surface of the display screen 10. For details, refer to Figure 1b As shown, Figure 2 The schematic diagram of the cross-sectional structure of the prior art showing that one end of the adhesive layer of the module is tilted. Figure 2 As shown, the adhesive layer 30 is in a warped state at the adhesive application starting point M and is peeled off from the surface of the display screen 10 , resulting in poor preparation of the display module.

[0039] In view of this, the present application provides a display module, a preparation method thereof and a display device. In the display module, the polarizer includes a stacked polarizing layer and an adhesive layer, and the orthographic projection of one side edge of the adhesive layer on the polarizing layer is located in the polarizing layer and does not cover the edge of the polarizing layer; the polarizer is located on the light-emitting side of the display part, and the adhesive layer is located between the display screen and the polarizing layer, and one side edge of the adhesive layer is close to the bending part. The adhesive layer covers the bending part and extends between the polarizing layer and the display screen until it contacts the adhesive layer. The present application arranges the adhesive layer on the side of the polarizer in the display module close to the display screen to have a notch, so that a gap is formed between the polarizer and the display screen, and arranges an adhesive layer covering the bending area to fill the gap, thereby increasing the bonding area between the adhesive layer and the polarizer, effectively reducing the probability of the edge of the adhesive layer warping, thereby improving the preparation yield of the display module.

[0040] Figure 3a This is a schematic diagram of the cross-sectional structure of a display module in one embodiment of the present application. Figure 3b for Figure 3a A magnified view of the dotted area. Figure 3a and Figure 3b As shown, the display module includes a stacked display screen 10 and a polarizer 20, and the display screen 10 includes a display portion 11 and a bending portion 12 located on one side of the display portion 11. The polarizer 20 includes a stacked polarizing layer 210 and an adhesive layer 220, and the orthographic projection of one side edge of the adhesive layer 220 on the polarizing layer 210 is located inside the polarizing layer 210 and does not cover the edge of the polarizing layer 210. The polarizer 20 is located on the light-emitting side of the display portion 11. Among them, the adhesive layer 220 of the polarizer 20 is located between the display screen 10 and the polarizing layer 210, and one side edge of the adhesive layer 220 is close to the bending portion 12. The display module also includes an adhesive layer 30, which covers the bending portion 12 and extends between the polarizing layer 210 and the display screen 10 until it contacts the adhesive layer 220.

[0041] In this embodiment, the bonding layer 220 on the side of the polarizer 20 close to the display screen 10 is provided with a notch, so that a gap S is formed between the polarizer 20 and the display screen 10, and a glue layer 30 covering the bending area 12 is provided to fill the gap S, thereby increasing the bonding area between the glue layer 30 and the polarizer 20, effectively reducing the probability of the edge of the glue layer 30 being lifted, thereby improving the preparation yield of the display module. In addition, since the solution of this embodiment only removes part of the bonding layer 220 of the polarizer 20, it will not damage the functional layer of the polarizer 20, and therefore will not affect the display effect. In addition, since the solution of this embodiment does not add any new film layer, it will not affect the overall thickness of the display module.

[0042] Figure 4 for Figure 3a The polarizer of the display module is shown in a top view in the direction where the adhesive layer points to the polarizing layer. Figure 3a and Figure 4 As shown, the minimum distance d between the orthographic projection of the edge L of one side of the adhesive layer 220 on the polarizing layer 210 and the edge of the polarizing layer 210 is greater than or equal to 0.1 mm and less than or equal to 0.5 mm. In this embodiment, the range of the d value is set in this way, which can effectively increase the bonding area between the adhesive layer 30 and the polarizer 20 and effectively avoid the probability of the edge of the adhesive layer 30 being lifted; it can also ensure that the bonding area between the polarizing layer 210 of the polarizer 20 and the display screen 10 is not too small, effectively avoiding the probability of the edge of the polarizer 20 being lifted, thereby further improving the manufacturing yield of the display module.

[0043] In one embodiment, the minimum distance between the orthographic projection of one edge of the adhesive layer 220 on the polarizing layer 210 and the edge of the polarizing layer 210 is 0.3 mm.

[0044] In one embodiment, the orthographic projection of the polarizing layer 210 on the display screen 10 and the orthographic projection of the adhesive layer 30 on the display screen 10 have an overlapping area; in the direction from the display portion to the bending portion, the length d of the overlapping area is 0.3 mm. Such a configuration effectively increases the bonding area between the adhesive layer 30 and the polarizer 20 compared to the prior art. By increasing the area, the probability of the edge of the adhesive layer 30 warping can be further reduced, thereby improving the manufacturing yield of the display module.

[0045] In one embodiment, the orthographic projection of the polarizing layer 210 on the display screen 10 and the orthographic projection of the adhesive layer 30 on the display screen 10 have an overlapping area; in the direction from the display portion to the bending portion, the length d of the overlapping area is greater than or equal to 0.1 mm and less than or equal to 0.5 mm. In this embodiment, the range of the d value is set in this way, which can effectively increase the bonding area between the adhesive layer 30 and the polarizer 20 and effectively avoid the probability of the edge of the adhesive layer 30 warping; it can also ensure that the bonding area between the polarizing layer 210 of the polarizer 20 and the display screen 10 is not too small, effectively avoiding the probability of the edge of the polarizer 20 warping, for details, refer to Figure 5 As shown, Figure 5 It is a schematic diagram of the cross-sectional structure of a display module in one embodiment of the present application.

[0046] In one embodiment, the thickness H of the bonding layer 220 is greater than or equal to 0.01 mm and less than or equal to 0.03 mm.

[0047] In one embodiment, the thickness H of the adhesive layer 220 is 0.02 mm.

[0048] In one embodiment, the polarizer 20 further includes a protective layer 230 stacked on a side of the polarizing layer 210 away from the bonding layer 220. The protective layer 230 is used to protect the mechanical properties of the polarizer 20.

[0049] In one embodiment, the protective layer 230 includes a hardening coating, and the hardening coating is used to improve the scratch resistance of the surface of the polarizer 20 .

[0050] In one embodiment, the protective layer 230 includes triacetyl cellulose, which serves to improve the physical and mechanical properties of the polarizer 20 and to protect it from the influence of external water vapor.

[0051] In one embodiment, the polarizing layer 210 includes polyvinyl alcohol, and the presence of the polyvinyl alcohol plays a role in converting external light into linearly polarized light.

[0052] In one embodiment, the polarizing layer 210 includes a quarter compensation film, and the quarter compensation film is used to achieve conversion between linear polarized light and circular polarized light.

[0053] In one embodiment, the polarizing layer 210 includes a quarter compensation film and polyvinyl alcohol sequentially stacked on a side of the adhesive layer 220 away from the display screen 10 .

[0054] In one embodiment, the polarizing layer 210 includes a quarter compensation film, and the quarter compensation film is used to achieve conversion between linear polarized light and circular polarized light.

[0055] In one embodiment, the adhesive layer 220 includes a pressure-sensitive adhesive and serves to bond the polarizing layer 210 and the display screen 10 .

[0056] In one embodiment, the adhesive layer 30 is a colorless and transparent glue. After being cured, the adhesive layer 30 can bond the polarizer 20 and the display screen 10, thereby replacing the function of the adhesive layer 220 of the polarizer 20. Therefore, the polarizer 20 after being cured will not have the problem of edge warping. In addition, due to the colorless and transparent characteristics of the adhesive layer 30, the optical properties of the polarizer 20 are not affected.

[0057] In one embodiment, the thickness of the adhesive layer 30 is less than the thickness of the polarizer 20 in the thickness direction of the display screen 10. This configuration helps to reduce the probability of bubbles being generated at the boundary where the adhesive layer 30 and the polarizer 20 contact after the optical adhesive layer 40 is attached.

[0058] In one embodiment, the display module further includes an optical adhesive layer 40 and a cover plate 50 which are sequentially stacked on the side of the polarizer 20 away from the display screen 10. The optical adhesive layer 40 is used to bond the polarizer 20 and the cover plate 50. The cover plate 50 is used to protect the display module from external mechanical damage, etc.

[0059] In one embodiment, the display module further includes a support film 60, which is located on the side of the display screen 10 away from the polarizer 20. The support film 60 is used to support and protect the thin film material of the display panel. This film material can provide mechanical strength and protect the display panel from physical damage. It may also have other functions, such as improving optical performance, anti-glare, anti-fingerprint, etc.

[0060] In one embodiment, the display module further includes foam 70, which is located on a side of the support film 60 away from the display screen 10. The foam 70 is used to buffer and protect the display module, and also plays a role in dust prevention.

[0061] In one embodiment, the display module further includes a flexible printed circuit assembly (FPCA), which is located on the side of the foam away from the display screen body 10. The display module realizes the connection between the display screen body 10 and the circuit board through the flexible printed circuit assembly, so the flexible printed circuit assembly has a certain thickness and area to carry electronic components.

[0062] In one embodiment, the display module further includes a spacer block 90, which is located between the display screen 10 and the foam 70. The spacer block 90 is used to provide necessary physical support for the flexible printed circuit board assembly to prevent the flexible printed circuit board assembly from being compressed or bent during assembly or operation, thereby protecting the integrity and reliability of the connection.

[0063] The present application also provides a method for preparing a display module, the specific steps are as follows: Figure 6 As shown, Figure 6 1 is a flow chart of an assembly method of a display module in an embodiment of the present application. The specific steps of the preparation method of the display module are described as follows.

[0064] S610: providing a polarizing layer;

[0065] S620: preparing an adhesive layer on one side of the polarizing layer;

[0066] S630: removing an edge portion of one side of the adhesive layer so that an orthographic projection of the edge of one side of the adhesive layer on the polarizer is located within the polarizer layer, thereby obtaining a polarizer;

[0067] S640: providing a display screen body, wherein the display screen body comprises a display portion and a portion to be bent located at one side of the display portion;

[0068] S650: attaching a polarizer to the light emitting side of the display screen, the polarizer is located at the light emitting layer of the display part, the adhesive layer is located between the polarizer and the display screen, and a gap area is formed between the polarizer and the display screen at one edge of the adhesive layer;

[0069] S660: preparing an adhesive layer on the surface of the part to be bent close to the polarizer and the gap area;

[0070] S670: Bend the bending portion and the adhesive layer to obtain a display module.

[0071] In this embodiment, a gap is formed between the polarizer and the display screen by setting a notch in the adhesive layer on the side of the polarizer close to the display screen, and a glue layer is set in the bending area to fill the gap, thereby increasing the bonding area between the glue layer and the polarizer, effectively reducing the probability of warping of the edge of the glue layer, thereby improving the preparation yield of the display module.

[0072] In one embodiment, preparing the adhesive layer in the portion to be bent and the gap area includes:

[0073] Apply liquid glue to the part to be bent and the gap area;

[0074] The liquid glue is cured to obtain a glue layer.

[0075] In one embodiment, applying liquid glue to the portion to be bent and the gap area includes:

[0076] Liquid glue is applied to the portion to be bent, and due to the siphon effect, the liquid glue penetrates into the gap formed between the polarizer and the display screen.

[0077] In one embodiment, curing the liquid glue includes:

[0078] The liquid glue is subjected to UV curing treatment. In this embodiment, the energy of ultraviolet rays is used to trigger a chemical reaction in the ultraviolet sensitizer contained in the liquid glue, converting the energy into active groups, thereby triggering free radical reactions in the glue molecules, forming stronger chemical bonds between the glue molecules of the liquid glue, and achieving rapid curing of the glue.

[0079] In one embodiment, removing the edge portion of one side of the adhesive layer comprises:

[0080] The edge portion of one side of the bonding layer is removed using a laser process.

[0081] In one embodiment, in step S650, the length of the gap area formed between the polarizing layer and the display screen in the direction from the display part to the part to be bent is greater than or equal to 0.1 mm and less than or equal to 0.5 mm. In this embodiment, the length of the gap area is set in this way, which can effectively increase the bonding area between the adhesive layer and the polarizer and effectively avoid the probability of the edge of the adhesive layer warping; it can also ensure that the bonding area between the polarizing layer of the polarizer and the display screen is not too small, effectively avoiding the probability of the edge of the polarizer warping, thereby further improving the manufacturing yield of the display module.

[0082] In one embodiment, in step S660, a glue layer is prepared on the surface of the part to be bent close to the polarizer and the gap area, and the thickness of the glue layer is less than the thickness of the polarizer in the thickness direction of the display screen. This arrangement helps to reduce the probability of bubbles being generated at the boundary position where the glue layer contacts the polarizer after the optical glue layer is attached.

[0083] In one embodiment, the adhesive layer is a colorless and transparent glue. After the adhesive layer is cured, it can bond the polarizer and the display screen, replacing the function of the adhesive layer of the polarizer. Therefore, the polarizer after curing will not have edge warping problems. And due to the colorless and transparent characteristics of the adhesive layer, it has no effect on the optical properties of the polarizer.

[0084] In one embodiment, in step S650, after attaching the polarizer to the light emitting side of the display screen, the method further includes:

[0085] An optical adhesive layer and a cover plate are attached to the side of the polarizer away from the display screen in sequence. The optical adhesive layer is used to bond the polarizer and the cover plate. The cover plate is used to protect the display module from external mechanical damage.

[0086] In one embodiment, in step S670, before bending the portion to be bent and the adhesive layer, the method further includes:

[0087] The support film, foam and other film layers are attached in sequence on the side of the display screen away from the polarizer. Among them, the support film is used to support and protect the thin film material of the display panel. This film material can provide mechanical strength and protect the display panel from physical damage. It may also have other functions, such as improving optical performance, anti-glare, anti-fingerprint, etc. The foam is used to cushion and protect the display module, and also plays a role in dust prevention.

[0088] The present application also provides a method for manufacturing a polarizer, which is specifically referred to Figure 7 As shown, Figure 7 FIG. 1 is a flow chart of a method for manufacturing a polarizer in one embodiment of the present application. Figure 7 As shown, the method for manufacturing the polarizer in this embodiment includes the following steps:

[0089] S710: providing a polarizing layer;

[0090] S720: preparing an adhesive layer on one side of the polarizing layer;

[0091] S730: removing an edge portion of one side of the adhesive layer so that an orthographic projection of the edge of one side of the adhesive layer on the polarizer is located within the polarizer layer, thereby obtaining a polarizer.

[0092] In this embodiment, a notch is formed on one side of the adhesive layer of the polarizer, so that a gap is formed between the polarizer and the display screen, and an adhesive layer is arranged in the bending area to fill the gap, thereby increasing the bonding area between the adhesive layer and the polarizer, effectively reducing the probability of the edge of the adhesive layer warping, thereby improving the preparation yield of the display module.

[0093] In one embodiment, removing the edge portion of one side of the adhesive layer comprises:

[0094] The edge of one side of the bonding layer is removed by laser process. Laser process, also known as laser processing, is a process that uses a high-energy-density laser beam to irradiate the surface of a material to vaporize or change the color of the material. In this embodiment, a portion of the bonding layer is removed by laser process. Laser process has the characteristics of high precision, high efficiency and environmental protection. In this embodiment, since the size of the gap in the bonding layer has high requirements, it is more suitable to be processed by laser process.

[0095] In one embodiment, the thickness of the adhesive layer is 0.02 mm.

[0096] In one embodiment, in step S730, after removing the edge portion of one side of the bonding layer so that the orthographic projection of the edge of one side of the bonding layer on the polarizer is located within the polarizing layer, the method further includes:

[0097] A protective layer is prepared on the side of the polarizing layer away from the adhesive layer. The protective layer 230 is used to protect the mechanical properties of the polarizer 20.

[0098] In one embodiment, the protective layer 230 includes a hardening coating, and the hardening coating is used to improve the scratch resistance of the surface of the polarizer 20 .

[0099] In one embodiment, the protective layer 230 includes triacetyl cellulose, which serves to improve the physical and mechanical properties of the polarizer 20 and block the influence of external water vapor.

[0100] The present application also provides a display device, including any of the above display modules. The display device provided in the embodiments of the present application can be a mobile terminal, such as a mobile phone, or a notebook, a tablet computer, a computer, a car navigation system, a wearable device, etc., and the present application does not make specific restrictions on this.

[0101] It should be noted that in the drawings of the present application document, the sizes of layers and regions may be exaggerated for clarity of illustration. It is also understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it is understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it may be the only layer between the two layers or two elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0102] In addition, 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.

[0103] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0104] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A display module, characterized in that: include: A display screen body, comprising a display portion and a bending portion located at one side of the display portion; A polarizer, comprising a stacked polarizing layer and an adhesive layer, wherein an orthographic projection of an edge of one side of the adhesive layer on the polarizing layer is located within the polarizing layer and does not cover an edge of the polarizing layer; the polarizer is located on a light-emitting side of the display portion, the adhesive layer is located between the display screen and the polarizing layer, and an edge of one side of the adhesive layer is close to the bending portion; as well as The adhesive layer covers the bent portion and extends between the polarizing layer and the display screen body until it contacts the bonding layer.

2. The display module according to claim 1, characterized in that: The minimum distance between the orthographic projection of the side edge on the polarizing layer and the edge of the polarizing layer is greater than or equal to 0.1 mm and less than or equal to 0.5 mm.

3. The display module according to claim 2, characterized in that: The minimum distance between the orthographic projection of one side edge of the adhesive layer on the polarizing layer and the edge of the polarizing layer is 0.3 mm.

4. The display module according to claim 1, characterized in that: The thickness of the adhesive layer is greater than or equal to 0.01 mm and less than or equal to 0.03 mm.

5. The display module according to claim 4, characterized in that: The thickness of the bonding layer is 0.02 mm.

6. A method for preparing a display module, characterized in that: include: Providing a polarizing layer; Preparing an adhesive layer on one side of the polarizing layer; Removing an edge portion of one side of the bonding layer so that the orthographic projection of the edge of one side of the bonding layer on the polarizing layer is located within the polarizing layer, thereby obtaining the polarizer; Providing a display screen body, the display screen body comprising a display portion and a portion to be bent located on one side of the display portion; The polarizer is attached to the light-emitting side of the display screen, the polarizer is located on the light-emitting side of the display unit, the adhesive layer is located between the polarizer and the display screen, and a gap area is formed between the polarizer and the display screen at one side edge of the adhesive layer; Prepare an adhesive layer on the surface of the portion to be bent close to the polarizer and the gap area; The portion to be bent and the adhesive layer are bent to obtain a display module.

7. The method for preparing a display module according to claim 6, characterized in that: The step of preparing the adhesive layer at the to-be-bent portion and the gap region comprises: Applying liquid glue on the portion to be bent and the gap area; The liquid glue is cured to obtain a glue layer.

8. The method for preparing a display module according to claim 6, characterized in that: The removing of the edge portion of one side of the bonding layer comprises: The edge portion of one side of the bonding layer is removed by laser processing.

9. A display device, characterized in that: A display module comprising any one of claims 1-5.

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