Display module and display device

Abstract

The present disclosure provides a display module and a display device, the display module comprising: a display panel, including a screen area and a bending area extending from a binding side edge of the screen area; and a reinforcing support plate fixed to a non-display surface side of the display panel; wherein the reinforcing support plate extends a first protrusion and a second protrusion from the binding side edge in a direction away from the screen area, the first protrusion and the second protrusion are spaced apart along the extension direction of the binding side edge, and the bending area is located between the first protrusion and the second protrusion. The display module and the display device provided by the embodiments of the present disclosure can improve the phenomenon of the bending area being broken due to collision.

Description

Technical Field

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

[0002] In the relevant technology, smartphones are developing in the direction of large screens, but the screens of smartphones are limited by factors such as portability and interaction, and the size cannot be infinitely increased. Folding and sliding products can effectively solve this problem. Folding and sliding mobile phones are a new form of foldable mobile phones, which are still in the stage of research and development. There are many problems with the products: for example, taking sliding mobile phones as an example, since the cover plate is made of flexible materials, the material is soft and the thickness is thin, it is generally designed to be flush with the screen or only extend a certain distance compared to the screen. In this way, the binding area and bending area of ​​the display module are not effectively protected by the cover plate, which makes the module susceptible to collision and breakage during production and transportation. Summary of the invention

[0003] The embodiments of the present disclosure provide a display module and a display device, which can improve the phenomenon that the bending area is broken due to collision.

[0004] The technical solutions provided by the embodiments of the present disclosure are as follows:

[0005] A display module, comprising:

[0006] The display panel comprises a screen area and a bending area extending from a binding side edge of the screen area;

[0007] A reinforcing support plate, covering the display surface of the display panel;

[0008] Among them, the reinforced support plate extends a first protrusion and a second protrusion from the binding side edge in a direction away from the screen area, the first protrusion and the second protrusion are spaced apart along the extension direction of the binding side edge, and the bending area is located in the middle of the first protrusion and the second protrusion.

[0009] Exemplarily, the bending area is bent toward the side where the reinforcement support plate is located, and forms an arched portion that is arched away from the screen area; wherein, in a direction parallel to the display surface and perpendicular to the binding side edge, the length of the first protrusion and the second protrusion extending away from the screen area is greater than or equal to the farthest distance between the outer side surface of the arched portion and the binding side edge.

[0010] Exemplarily, the outer contour lines of the first protrusion and the second protrusion include an outer edge line farthest from the screen area, and the outer edge line is a straight edge, a serrated edge, a corrugated edge or an arc edge.

[0011] Exemplarily, the outer contour lines of the first protrusion and the second protrusion include a plurality of corners, wherein each of the corners is a smooth chamfer.

[0012] Exemplarily, the reinforcing support plate extends a third protrusion from the binding side edge in a direction away from the screen area, and the third protrusion is connected between the first protrusion and the second protrusion; in a direction parallel to the display surface and perpendicular to the binding side edge, the length of the third protrusion extending away from the screen area is less than the length of the first protrusion and the second protrusion extending away from the screen area.

[0013] Exemplarily, the screen area is provided with a first alignment mark and a second alignment mark at intervals near the binding side edge, and the bending area is located between the first alignment mark and the second alignment mark; the edge of the third protrusion away from the screen area is recessed toward the screen area to form a first notch and a second notch;

[0014] The inner circumferential side edge of the first notch surrounds the first alignment mark to expose the first alignment mark; the inner circumferential side edge of the second notch surrounds the second alignment mark to expose the second alignment mark; the third protrusion forms a pressing area between the first notch and the second notch to keep the relative position between the first alignment mark and the second alignment mark unchanged.

[0015] Exemplarily, the inner circumferential side edge of the first notch, the inner circumferential side edge of the second notch, the connecting corner of the first notch and the outer contour line of the third protrusion, and the connecting corner of the first notch and the outer contour line of the third protrusion are all smooth curves.

[0016] Exemplarily, the distance between the inner peripheral edge of the first notch and the first alignment mark is 0.3±0.2 mm; the distance between the inner peripheral edge of the second notch and the second alignment mark is 0.3±0.2 mm.

[0017] Exemplarily, in a direction parallel to the display surface and perpendicular to the binding side edge, a length of the third protrusion extending away from the screen area is 0.3±0.2 mm.

[0018] Exemplarily, in a direction parallel to the display surface and perpendicular to the binding side edge, a length of the first protrusion and the second protrusion extending away from the screen area is 1±0.5 mm.

[0019] Exemplarily, the binding side edge has a first end and a second end opposite to each other along its extension direction, the first protrusion is located at the first end, and the second protrusion is located at the second end.

[0020] Exemplarily, the first end has a first chamfer, and in the extending direction of the binding side edge, a side of the first protrusion close to the bending area is flush with a side of the first chamfer close to the bending area, or a side of the first protrusion close to the bending area is located on a side of the first chamfer close to the bending area;

[0021] The second end has a second chamfer, and in the extension direction of the binding side edge, the side of the second protrusion close to the bending zone is flush with the side of the second chamfer close to the bending zone, or the side of the second protrusion close to the bending zone is located on the side of the second chamfer close to the bending zone.

[0022] The embodiment of the present disclosure also provides a display device, including the display module provided by the embodiment of the present disclosure.

[0023] The beneficial effects brought by the embodiments of the present disclosure are as follows:

[0024] The display module and display device provided by the disclosed embodiment extend the reinforcement support plate below the display panel outward from the binding side edge of the display panel, that is, the reinforcement support plate expands outward on the binding side to form a first protrusion and a second protrusion. Since the bending area is located between the first protrusion and the second protrusion, the first protrusion and the second protrusion can protect the bending area and the binding side edge of the display panel, and prevent the bending area and the binding side edge of the display panel from breaking due to collision. The above scheme is highly feasible and practical, and only requires the reinforcement support plate to be designed to expand outward, without adding any additional process flow to the module production. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic plan view of a display module provided by some embodiments of the present disclosure, wherein only a display panel and a reinforcing support plate are illustrated, and other structures are not illustrated;

[0026] Figure 2 A schematic cross-sectional view showing a display module provided by some embodiments of the present disclosure;

[0027] Figure 3 A schematic diagram showing a partial structure of a display module on a binding side provided in some embodiments of the present disclosure;

[0028] Figure 4 A schematic diagram showing a partial structure of a reinforcing support plate on a binding side of a display module provided in some embodiments of the present disclosure;

[0029] Figure 5 A schematic diagram showing a partial structure of a reinforcing support plate on a binding side of a display module provided in some other embodiments of the present disclosure;

[0030] Figure 6 A schematic diagram showing a partial structure of a second notch of a reinforcing support plate of a display module provided in some embodiments of the present disclosure;

[0031] Figure 7 A schematic diagram showing the structure of a third protrusion of a reinforcing support plate of a display module provided in some embodiments of the present disclosure. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0033] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantity restrictions, but indicate that there is at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] Before describing in detail the display module and the display device provided by the embodiments of the present disclosure, it is necessary to describe the related technologies as follows:

[0035] In the related technology, the lower part of the cover glass (CG) used in conventional smartphone products will exceed the module border, and the cover glass is relatively hard. The part that exceeds the module border will protect the bending area (Pad Bending); while folding and rolling display products are still in the stage of research and development, and there are many problems with the products: for example, taking the rolling mobile phone as an example, the cover glass is made of flexible materials, which are soft and thin, and are generally designed to be flush with the screen or only extend a certain distance (usually 0.2mm) from the screen. In this way, the binding area and bending area of ​​the display module are not effectively protected by the reinforced support plate, resulting in the module being easily hit and broken during production and transportation.

[0036] In order to solve the above problems, the embodiments of the present disclosure provide a display module and a display device, which can improve the phenomenon that the bending area is broken due to collision.

[0037] Please refer to Figures 1 to 7 The display module provided by some embodiments of the present disclosure includes: a display panel 100 and a reinforcement support plate 200, wherein the display panel 100 includes a screen area A and a bending area B extending from a binding side edge A1 of the screen area A; the reinforcement support plate 200 is fixed to a non-display surface side of the display panel 100; wherein the reinforcement support plate 200 extends a first protrusion 210 and a second protrusion 220 from the binding side edge A1 in a direction away from the screen area A, the first protrusion 210 and the second protrusion 220 are spaced apart along the extension direction of the binding side edge A1, and the bending area B is located between the first protrusion 210 and the second protrusion 220.

[0038] In the above scheme, the reinforcing support plate 200 attached to the bottom of the display panel 100 is extended outward from the binding side edge A1 of the display panel 100, that is, the reinforcing support plate 200 is expanded outward on the binding side to form the first protrusion 210 and the second protrusion 220, and the bending area B is located in the middle of the first protrusion 210 and the second protrusion 220, and there is a gap between the first protrusion 210 and the second protrusion 220, so that the first protrusion 210 and the second protrusion 220 can protect the bending area B and the binding side edge A1 of the display panel 100, and prevent the bending area B and the binding side edge A1 of the display panel 100 from breaking due to collision. The above scheme has high feasibility and high practicality. It only needs to redesign the shape of the reinforcing support plate 200 compared with the reinforcing support plate 200 in the related art when designing the reinforcing support plate 200, that is, the outward expansion design of the reinforcing support plate 200 will not increase the process flow of module production.

[0039] The display module provided by the present disclosure is described in more detail below.

[0040] In some embodiments, Figure 2 As shown, the display module also includes a cover plate 300 covering the display surface of the display panel 100, and the cover plate 300 is flush with the binding side edge of the screen area A, or the cover plate 300 extends outward from the binding side edge of the screen area A. In other words, the cover plate 300 is flush with the edge of the screen area or is designed to expand outward. In some embodiments, the expansion size is about 0.2mm. With the above solution, the display panel 100 can be protected by the cover plate 300 and the reinforcement support plate 200 at the binding side edge A1.

[0041] In some exemplary embodiments, the display module also includes an upper polarizer 500 and a lower polarizer 600. The upper polarizer 500 can be attached between the display surface of the display panel 100 and the cover plate 300 by optical adhesive 400, etc., and the lower polarizer 600 can be attached between the non-display surface of the display panel 100 and the reinforcement support plate 200.

[0042] In some exemplary embodiments, as shown in the figure, the bending zone B is bent toward the side where the reinforcement support plate 200 is located, and forms an arched portion B1 that is arched away from the screen area A, and the bending zone B is fixed to the reinforcement support plate 200 through a bending gasket 700; wherein, in a direction parallel to the display surface and perpendicular to the binding side edge A1, the length L1 of the first protrusion 210 and the second protrusion 220 extending away from the screen area A is greater than or equal to the farthest distance D1 between the outer side surface of the arched portion B1 and the binding side edge A1.

[0043] With the above scheme, since the bending zone B is bent from one side of the display panel 100 toward the side where the reinforcement support plate 200 is located, and is fixed on the non-display side of the display panel, the bending zone B will be arched in the direction away from the screen area A on the side away from the screen area A. When producing and transporting the display module, the arched portion B1 is most vulnerable to collision. Therefore, in order to make the first protrusion 210 and the second protrusion 220 achieve a more ideal protection effect, the outer edge lines of the first protrusion 210 and the second protrusion 220 on the reinforcement support plate 200 should at least be flush with the outer side surface of the arched portion B1 or exceed the outer side surface of the arched portion B1. In this way, the first protrusion and the second protrusion are equivalent to forming a protective cavity for the arched portion B1 of the bending zone B, and the arched portion B1 is completely accommodated in the protective cavity.

[0044] Of course, it is understandable that, in actual applications, the lengths of the first protrusion 210 and the second protrusion 220 extending outward are not limited. For example, in some embodiments, when the first protrusion 210 and the second protrusion 220 only need to protect a partial area of ​​the binding side edge A1 of the screen area A, such as only protecting the two end corners of the binding side edge A1, the length of the first protrusion 210 and the second protrusion 220 extending away from the screen area A may also be less than the farthest distance between the outer side surface of the arch B1 and the binding side edge A1.

[0045] In addition, the specific shapes of the first protrusion 210 and the second protrusion 220 are not limited. For example, in some embodiments, as shown in the figure, the outer contour lines of the first protrusion 210 and the second protrusion 220 include an outer edge line 230 farthest from the screen area A, and the outer edge line 230 is a straight edge, a sawtooth edge, a corrugated edge, or an arc edge. It should be understood that the above is only an example of the shape of the first protrusion 210 and the second protrusion 220, but it is not limited to this. The specific shapes of the first protrusion 210 and the second protrusion 220 are not listed one by one here.

[0046] In addition, in some exemplary embodiments, as shown in the figure, the outer contours of the first protrusion 210 and the second protrusion 220 include a plurality of corners 240, wherein each of the corners 240 is a rounded chamfer. The purpose of such a setting is to make each corner 240 transition smoothly, without sharp corners 240, and when encountering a collision with an external object, it is not easy to concentrate stress at the corner 240, so it is not easy to break.

[0047] In addition, in some exemplary embodiments, as shown in the figure, the reinforcement support plate 200 extends a third protrusion 250 from the binding side edge A1 in a direction away from the screen area A, and the third protrusion 250 is connected between the first protrusion 210 and the second protrusion 220; in a direction parallel to the display surface and perpendicular to the binding side edge A1, the length of the third protrusion 250 extending in the direction away from the screen area A is less than the length of the first protrusion 210 and the second protrusion 220 extending in the direction away from the screen area A.

[0048] By adopting the above scheme, the reinforcing support plate 200 is not only designed to expand outward on both sides of the bending area B, but also expands outward in the area between the first protrusion 210 and the second protrusion 220 compared to the screen area A of the display panel 100, which can further protect the edge of the screen area A.

[0049] In addition, in the related art, when the bending area B of the display module is bent, the display panel 100 is usually provided with an alignment mark on the screen area A. Since the flexible reinforcing support plate 200 is flush with the screen area A or only extends a short distance, the display panel 100 is deformed due to tension during the process, which causes the position of the alignment mark to change, thereby causing the device to alarm due to the inability to recognize the alignment mark. If the reinforcing support plate 200 is designed to extend outward, the alignment mark will be blocked, making it impossible to perform the bending process.

[0050] In order to solve the above problems, in some embodiments of the present disclosure, as shown in the figure, the screen area A is provided with a first alignment mark 110 and a second alignment mark 120 at intervals near the binding side edge A1, and the bending area B is located in the middle of the first alignment mark 110 and the second alignment mark 120; the edge of the third protrusion 250 away from the screen area A is recessed toward the screen area A to form a first notch 252 and a second notch 253; wherein the inner peripheral side edge of the first notch 252 surrounds the first alignment mark 110 to expose the first alignment mark 110; the inner peripheral side edge of the second notch 253 surrounds the second alignment mark 120 to expose the second alignment mark 120; the third protrusion 250 forms a pressing area 251 between the first notch 252 and the second notch 253 to keep the relative position between the first alignment mark 110 and the second alignment mark 120 unchanged.

[0051] By adopting the above scheme, the first notch 252 and the second notch 253 are hollowed out on the reinforcement support plate 200 to expose the first alignment mark 110 and the second alignment mark 120, thereby ensuring that the bending process is not affected, and the part of the third protrusion 250 located between the first notch 252 and the second notch 253 will have a pressing effect on the part between the first alignment mark 110 and the second alignment mark 120, so that this part will not be affected by the bending and deformed.

[0052] It should be noted that the size of the first alignment mark 110 and the second alignment mark 120 is not limited, and can be between 0.15 and 0.25 mm. The specific shape is related to the module design space. When the space is insufficient, a smaller size can be selected. In addition, the shape of the first alignment mark 110 and the second alignment mark 120 can be any suitable shape such as a cross, a T-shape, a diamond, etc.

[0053] As shown in the figure, in some embodiments, as shown in the figure, the inner peripheral side edge of the first notch 252, the inner peripheral side edge of the second notch 253, the connecting corner of the first notch 252 and the outer contour line of the third protrusion 250, and the connecting corner of the first notch 252 and the outer contour line of the third protrusion 250 are all smooth curves.

[0054] By adopting the above solution, the outer contour line of the outer expansion part of the reinforcing support plate 200 and the inner peripheral side edges of the first notch 252 and the second notch 253 are all smooth curves, so that it can be ensured that no stress concentration area will be generated. Figure 7 As shown, the chamfer radius R1 at the connection corner can be around 0.2 mm.

[0055] In addition, the reinforcing support plate 200 is symmetrically arranged relative to the central axis of the display panel 100, and the central axis is perpendicular to the binding side edge A1, so that the first protrusion 210 and the second protrusion 220 are structurally symmetrical about the central axis A2, and the first notch 252 and the second notch 253 are symmetrical about the central axis A2.

[0056] In some embodiments, the specific structures and sizes of the first protrusion 210, the second protrusion 220, the third protrusion 250, the first notch 252 and the second notch 253 on the reinforcement support plate 200 may be as follows:

[0057] In a direction parallel to the display surface and perpendicular to the binding side edge A1, the length L1 of the first protrusion 210 and the second protrusion 220 extending away from the screen area A is 1±0.5 mm. In other words, the size of the first protrusion 210 and the second protrusion 220 is designed to expand outward by 1±0.5 mm relative to the binding side edge A1 of the screen area A. In a specific embodiment, for example, the size of the first protrusion 210 and the second protrusion 220 is designed to expand outward by 1 mm relative to the binding side edge A1 of the screen area A.

[0058] The widths of the first protruding portion 210 and the second protruding portion 220 in the extending direction of the binding side edge A1 can be dynamically adjusted according to the design margin of the display module product.

[0059] For example, as shown in the figure, the binding side edge A1 has a first end and a second end opposite to each other along its extension direction, the first protrusion 210 is located at the first end, and the second protrusion 220 is located at the second end; the first end has a first chamfer 121, and in the extension direction of the binding side edge, the side of the first protrusion 210 close to the bending zone B is flush with the side of the first chamfer close to the bending zone, or the side of the first protrusion 210 close to the bending zone B is located on the side of the first chamfer 121 close to the bending zone; the second end has a second chamfer 122, and in the extension direction of the binding side edge, the side of the second protrusion 220 close to the bending zone is flush with the side of the second chamfer close to the bending zone, or the side of the second protrusion 220 close to the bending zone is located on the side of the second chamfer 122 close to the bending zone. In this way, the left and right corners (i.e., the first chamfer and the second chamfer) of the binding side edge A1 of the display module can be effectively protected, ensuring the safety and reliability of the entire module during the production process.

[0060] It should be noted that the protrusion amount (i.e., extension length) and shape of the first protrusion 210 and the second protrusion 220 of the reinforcing support plate 200 can be adjusted according to the design of the two chamfers R of the binding side edge A1 of the display panel 100, and the surface of the reinforcing support plate 200 is polished and is required to be free of burrs.

[0061] In addition, in a direction parallel to the display surface and perpendicular to the binding side edge A1, the length L2 of the third protrusion 250 extending away from the screen area A is 0.3±0.2 mm. Figure 4 As shown, the pressing area 251 expands outwardly relative to the binding side edge A1 of the screen area A by 0.3±0.2 mm.

[0062] In addition, in some embodiments, the distance L3 between the inner peripheral edge of the first notch 252 and the first alignment mark 110 is 0.3±0.2 mm; the distance L3 between the inner peripheral edge of the second notch 253 and the second alignment mark 120 is 0.3±0.2 mm. Figures 4 to 6As shown, the first notch 252 includes a semicircular inner contour line surrounding the first alignment mark 110, and the distance L3 from the inner contour line of the first notch 252 to the first alignment mark is 0.3 mm, that is, the radius R2 of the semicircular inner contour line is equal to 0.3 mm, and the farthest distance L4 from the inner contour line of the first notch 252 to the binding side edge A1 of the screen area A is 1 mm. Similarly, the second notch 253 includes a semicircular inner contour line surrounding the second alignment mark 120, and the distance from the inner contour line of the second notch 253 to the second alignment mark is 0.3 mm, and the farthest distance from the binding side edge A1 of the screen area A is 1 mm.

[0063] It should also be noted that the display module provided in the embodiment of the present disclosure can achieve effective protection for the chamfer of the bending area B and the binding side edge A1 only by changing the external structure of the reinforcement support plate 200. No additional processes will be added in the factory during the actual production process. Relevant jigs in the production process can make corresponding avoidance on the outwardly expanded part of the reinforcement support plate 200. The solution is highly practical and feasible.

[0064] In addition, it should be noted that Figure 1 As shown, the reinforcing support plate 200 is flush with the edge of the screen area A at the other side edges of the display panel 100 except the binding side edge A1, or is designed to be flush with the edge of the screen area A, and the shrinkage size is approximately between 0.2 and 0.3 mm.

[0065] In addition, in the display module provided by the present disclosure, the reinforcing support plate 200 can be made of stainless steel. The display module can be applied to various types of display products, especially to the folding display industry or the sliding display product.

[0066] The embodiments of the present disclosure also provide a display device, including the display module provided by the embodiments of the present disclosure, wherein the display device may include various display products such as mobile phones, tablets, and monitors.

[0067] There are a few points to note:

[0068] (1) The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure, and other structures may refer to the general design.

[0069] (2) For the sake of clarity, in the drawings used to describe the embodiments of the present disclosure, the thickness of layers or regions is exaggerated or reduced, that is, these drawings are not drawn according to the actual scale. It is understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "under" another element, the element may be "directly" "on" or "under" the other element or there may be intermediate elements.

[0070] (3) In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0071] The above are only specific implementations of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and the protection scope of the present disclosure shall be based on the protection scope of the claims.

Claims

1. A display module, characterized in that: include: The display panel comprises a screen area and a bending area extending from a binding side edge of the screen area; and A reinforcing support plate, fixed to a non-display surface side of the display panel; Wherein, the reinforcing support plate extends a first protrusion and a second protrusion from the binding side edge in a direction away from the screen area, the first protrusion and the second protrusion are arranged spaced apart along the extension direction of the binding side edge, and the bending area is located between the first protrusion and the second protrusion, and the outer contour lines of the first protrusion and the second protrusion include a plurality of corners, wherein each of the corners is a smooth chamfer; The reinforcing support plate extends a third protrusion from the binding side edge in a direction away from the screen area, and the third protrusion is connected between the first protrusion and the second protrusion; The screen area is provided with a first alignment mark and a second alignment mark at intervals near the binding side edge, and the bending area is located between the first alignment mark and the second alignment mark; the edge of the third protrusion away from the screen area is recessed toward the screen area to form a first notch and a second notch; The inner circumferential side edge of the first notch surrounds the first alignment mark to expose the first alignment mark; the inner circumferential side edge of the second notch surrounds the second alignment mark to expose the second alignment mark; the third protrusion forms a pressing area between the first notch and the second notch to keep the relative position between the first alignment mark and the second alignment mark unchanged.

2. The display module according to claim 1, characterized in that: The bending area is bent toward the side where the reinforcing support plate is located, and forms an arched portion that is arched away from the screen area; wherein, in a direction parallel to the display surface and perpendicular to the binding side edge, the length of the first protrusion and the second protrusion extending away from the screen area is greater than or equal to the farthest distance between the outer side surface of the arched portion and the binding side edge.

3. The display module according to claim 1, characterized in that: The outer contour lines of the first protrusion and the second protrusion include an outer edge line farthest from the screen area, and the outer edge line is a straight edge, a sawtooth edge, a corrugated edge or an arc edge.

4. The display module according to claim 1, characterized in that: In a direction parallel to the display surface and perpendicular to the binding side edge, a length of the third protrusion extending away from the screen area is smaller than a length of the first protrusion and the second protrusion extending away from the screen area.

5. The display module according to claim 1, characterized in that: The inner peripheral side edge of the first notch, the inner peripheral side edge of the second notch, the connecting corner between the first notch and the outer contour line of the third protrusion, and the connecting corner between the first notch and the outer contour line of the third protrusion are all smooth curves.

6. The display module according to claim 5, characterized in that: The distance between the inner peripheral edge of the first notch and the first alignment mark is 0.3±0.2 mm; The distance between the inner peripheral edge of the second notch and the second alignment mark is 0.3±0.2 mm.

7. The display module according to claim 4, characterized in that: In a direction parallel to the display surface and perpendicular to the binding side edge, the length of the third protrusion extending away from the screen area is 0.3±0.2 mm.

8. The display module according to claim 1, characterized in that: In a direction parallel to the display surface and perpendicular to the binding side edge, a length of the first protrusion and the second protrusion extending away from the screen area is 1±0.5 mm.

9. The display module according to claim 1, characterized in that: The binding side edge has a first end and a second end opposite to each other along its extension direction, the first protrusion is located at the first end, and the second protrusion is located at the second end.

10. The display module according to claim 9, characterized in that: The first end has a first chamfer, and in the extending direction of the binding side edge, a side of the first protrusion close to the bending area is flush with a side of the first chamfer close to the bending area, or a side of the first protrusion close to the bending area is located on a side of the first chamfer close to the bending area; The second end has a second chamfer, and in the extension direction of the binding side edge, the side of the second protrusion close to the bending zone is flush with the side of the second chamfer close to the bending zone, or the side of the second protrusion close to the bending zone is located on the side of the second chamfer close to the bending zone.

11. A display device, characterized in that: Comprising the display module as described in any one of claims 1 to 10.

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