Display module, terminal device and preparation method of display module

Abstract

The application provides a display module, which comprises a first structural layer, a second structural layer and an optical adhesive layer. The first structural layer and the second structural layer are stacked along a first direction, and the first direction is the thickness direction of the display module. The optical adhesive layer is located between the first structural layer and the second structural layer, and is used for bonding the first structural layer and the second structural layer. The size of the optical adhesive layer is set to be able to make the edge of the optical adhesive layer exceed the edge of the first structural layer and / or the second structural layer by a first distance D1. The edge of the optical adhesive layer is provided with a plurality of cutting lines, and the plurality of cutting lines are used for selectively peeling off part of the optical adhesive layer according to the offset condition of the optical adhesive layer and the first structural layer or the second structural layer to adjust the extension size of the edge of the optical adhesive layer relative to the edge of the first structural layer and / or the second structural layer. The interval between two adjacent cutting lines is D2, and D1 and D2 satisfy: D2≤D1. The technical scheme of the application can avoid the edge of the first structural layer and / or the second structural layer from being exposed.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display module, a terminal device, and a method for manufacturing the display module. Background Technology

[0002] The display module of a display device typically includes structural layers such as a display panel, a cover plate, and a polarizing structural layer. These structural layers are usually bonded together with adhesive layers to ensure display quality and layer bonding. For example, the polarizing structural layer is typically bonded to the cover plate.

[0003] To achieve a narrow bezel and satisfy the user's visual experience, optical adhesive is typically used to bond two structural layers, such as a polarizing structural layer, to the cover plate using full lamination technology.

[0004] However, in related technologies, there are instances where the centers of the optical adhesive layer and the structural layer are misaligned during bonding, resulting in partial exposure of the structural layer and localized accumulation of the optical adhesive. For example, there are instances where the centers of the optical adhesive layer and the polarizing structural layer are misaligned during bonding, leading to partial exposure of the polarizing structural layer and localized accumulation of the optical adhesive. Summary of the Invention

[0005] In view of this, this application provides a display module, a terminal device, and a method for manufacturing the display module to solve the problem of center misalignment between the optical adhesive and the structural layer during bonding, which leads to partial exposure of the structural layer and local accumulation of the optical adhesive.

[0006] In a first aspect, embodiments of this application provide a display module comprising a first structural layer, a second structural layer, and an optical adhesive layer. The first and second structural layers are stacked along a first direction, which is the thickness direction of the display module. The optical adhesive layer is located between the first and second structural layers and is used to bond the first and second structural layers. The optical adhesive layer is sized such that its edge extends beyond the edge of the first and / or second structural layers by a first distance D1. The edge of the optical adhesive layer has multiple cutting lines, which are used to selectively peel off portions of the optical adhesive layer according to the adhesion offset between the optical adhesive layer and the first or second structural layer to adjust the outer dimension of the edge of the optical adhesive layer relative to the edge of the first or second structural layer. The distance between two adjacent cutting lines is D2, and D1 and D2 satisfy: D2 ≤ D1.

[0007] In conjunction with the first aspect above, in one possible implementation, after peeling off a portion of the optical adhesive layer according to the adhesion offset between the optical adhesive layer and the first structural layer and / or the second structural layer, the edge of the optical adhesive layer can extend beyond the edge D3 of the first structural layer and / or the second structural layer, where D3 and D1 satisfy: D3≤D1.

[0008] In conjunction with the first aspect above, in one possible implementation, the multiple cutting lines include n cutting lines, where n satisfies: 2≤n≤20.

[0009] In conjunction with the first aspect above, in one possible implementation, the multiple cutting lines include n cutting lines, where n satisfies: 6 ≤ n ≤ 20.

[0010] In conjunction with the first aspect above, in one possible implementation, the bonding offset between the optical adhesive layer and the first structural layer or the second structural layer is x, where x ≤ 0.15 mm.

[0011] In conjunction with the first aspect above, in one possible implementation, D1 ≤ 0.2 mm.

[0012] In conjunction with the first aspect above, in one possible implementation, the edge of the optical adhesive layer can be selectively peeled off by tweezers or clips; and / or, along the direction of the edge of the optical adhesive layer near the edge of the first structural layer or the second structural layer, the spacing D2 between two adjacent cutting lines gradually decreases.

[0013] In conjunction with the first aspect described above, in one possible implementation, the first structural layer is a polarizing structural layer, the second structural layer is a cover plate, and / or the size of the optical adhesive layer is set such that the edge of the optical adhesive layer extends beyond the edge of the polarizing structural layer by a first distance D1.

[0014] Secondly, embodiments of this application provide a terminal device that includes a display module according to any of the above embodiments.

[0015] Thirdly, embodiments of this application provide a method for manufacturing a display module. The display module includes a first structural layer, a second structural layer, and an optical adhesive layer. The optical adhesive layer is sized such that its edge extends beyond the edges of the first and / or second structural layers by a first distance D1. The edge of the optical adhesive layer has multiple cutting lines, and the distance between two adjacent cutting lines is D2. D1 and D2 satisfy: D2≤D1. The manufacturing method includes: providing a first structural layer and a second structural layer, the first structural layer having a first surface; disposing the optical adhesive layer on the first surface; selectively peeling off a portion of the optical adhesive layer according to the adhesion offset between the optical adhesive layer and the first structural layer to adjust the extension dimension of the edge of the optical adhesive layer relative to the edge of the first structural layer; and disposing the second structural layer on the surface of the optical adhesive layer facing away from the first structural layer.

[0016] According to the technical solution of the embodiments of this application, the edge of the optical adhesive layer extends beyond the edge of the first structural layer and / or the second structural layer to provide a margin. Moreover, the edge of the optical adhesive layer is provided with multiple cutting lines. After bonding, when the center of the optical adhesive layer is offset from the center of the first structural layer or the second structural layer, the optical adhesive layer can be selectively peeled off to a suitable margin according to the offset, thereby avoiding the exposure of the edge of the first structural layer and / or the second structural layer and the local accumulation of the optical adhesive layer. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the drawings only show some embodiments of this application and should not be considered as a limitation of the scope. It should also be understood that the same or similar reference numerals are used in the drawings to represent the same or similar elements. Furthermore, it should be understood that the drawings are merely schematic, and the dimensions and scale of the elements in the drawings are not necessarily precise.

[0018] Figure 1 This is a schematic diagram of the structure of a display module in related technologies.

[0019] Figure 2 This is another structural schematic diagram of a display module in related technologies.

[0020] Figure 3 This is another structural schematic diagram of a display module in related technologies.

[0021] Figure 4 This is a front view structural diagram of a display module provided according to an embodiment of this application.

[0022] Figure 5 This is a top view of an optical adhesive layer provided according to an embodiment of this application.

[0023] Figure 6 This is a top view of the optical adhesive layer and polarizing structure layer of a display module provided according to an embodiment of this application.

[0024] Figure 7 for Figure 6 A schematic diagram of the front view of the optical adhesive layer and the polarizing structure layer.

[0025] Figure 8 for Figure 7 A side view schematic diagram of the intermediate polarizing structure layer and the optical adhesive layer adjusted according to the offset.

[0026] Figure 9 This is a schematic flowchart of a method for manufacturing a display module according to an embodiment of this application.

[0027] Figure label: 100. Display module; 101. Display panel; 102. Polarizing structure layer; 103. Optical adhesive layer; 104. Cover plate; 200. Display module; 21. Display panel; 22. Polarizing structure layer / first structure layer; 23. Optical adhesive layer; 231. Cutting line; 24. Cover plate / second structure layer. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0029] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods and means well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0032] For ease of description, a first direction Z, a second direction X, and a third direction Y are defined herein and illustrated in the accompanying drawings. For example, the first direction Z can be the thickness direction of the display module, the second direction X can be the length direction of the display module, and the third direction Y can be a direction perpendicular to the first direction X and the second direction Y. In this document, the width direction and length direction are relative.

[0033] The display module of a display device typically includes structural layers such as a display panel, a cover plate, and a polarizing structural layer. These structural layers are usually bonded together with adhesive layers to ensure display quality and layer adhesion. For example, the polarizing structural layer is typically bonded to the cover plate.

[0034] To achieve a narrow bezel and satisfy the user's visual experience, optical adhesive is typically used to bond two structural layers, such as a polarizing structural layer, to the cover plate using full lamination technology.

[0035] However, in related technologies, there are instances where the centers of the optical adhesive layer and the structural layer are misaligned during bonding, resulting in partial exposure of the structural layer and localized accumulation of the optical adhesive. For example, there are instances where the centers of the optical adhesive layer and the polarizing structural layer are misaligned during bonding, resulting in partial exposure of the polarizing structural layer and localized accumulation of the optical adhesive layer.

[0036] refer to Figures 1 to 3 Taking the bonding of optical adhesive layer 103 and polarizing structure layer 102 as an example, the display module 100 includes a display panel 101, a polarizing structure layer 102 (e.g., POL), an optical adhesive layer 103 (e.g., OCA), and a cover plate 104. When the OCA is centered, that is, when the center of the OCA and the center of the POL are basically coincident, the edge of the OCA is slightly recessed compared to the edge of the POL. During the droplet test, no corrosive liquid will remain at the recessed position, thus preventing the POL from corroding and failing.

[0037] However, when OCA and POL are bonded, their centers (e.g., longitudinal centerline) are usually offset (see reference). Figure 2 At this point, part of the edge of the OCA will recede significantly inward relative to the edge of the POL. Consequently, during subsequent droplet tests, a large amount of corrosive liquid will remain at the receded area, leading to corrosion failure of the POL and abnormal droplet test results.

[0038] In related technologies, solving this problem typically requires improving equipment capabilities to enhance the bonding accuracy of the optical adhesive layer, leading to a significant increase in cost. Alternatively, a one-piece cutting process can be used to cut the edges of the bonded OCA and POL as a single unit (e.g., one-piece laser cutting) to avoid exposing the edges of the POL. However, this method is costly and has poor process stability, resulting in unsatisfactory improvement.

[0039] To address the aforementioned technical problems, embodiments of this application provide a display module, a terminal device, and a method for manufacturing the display module, thereby resolving the issue of center misalignment between the optical adhesive and the structural layer during bonding, which leads to partial exposure of the structural layer and localized accumulation of the optical adhesive.

[0040] Below, in conjunction with Figures 4 to 9 The present application describes the display module, terminal device, and method for manufacturing the display module provided in the embodiments.

[0041] Exemplary display module

[0042] refer to Figures 4 to 8In a first aspect, embodiments of this application provide a display module 200, which includes a first structural layer 22, a second structural layer 24, and an optical adhesive layer 23. The first structural layer 22 and the second structural layer 24 are stacked along a first direction Z, where Z is the thickness direction of the display module 200. The optical adhesive layer 23 is located between the first structural layer 22 and the second structural layer 24 and is used to bond the first structural layer 22 and the second structural layer 24. The dimensions of the optical adhesive layer 23 are configured such that the edge of the optical adhesive layer 23 extends beyond the edge of the first structural layer 22 and / or the edge of the second structural layer 24 by a first distance D1. The edge of the optical adhesive layer 23 is provided with multiple cutting lines 231, which are used to selectively peel off portions of the optical adhesive layer 23 according to the adhesion offset between the optical adhesive layer 23 and the first structural layer 22 or the second structural layer 24 to adjust the outer dimension of the edge of the optical adhesive layer 23 relative to the edge of the first structural layer 22 or the second structural layer 24. The distance between two adjacent cutting lines 231 is D2, and D1 and D2 satisfy: D2≤D1.

[0043] It should be noted that the dimensions of the optical adhesive layer 23 are set such that the edge of the optical adhesive layer 23 extends beyond the edge of the first structural layer 22 and / or the second structural layer 24 by a first distance D1. This can be understood as the design dimensions of the optical adhesive layer 23 being such that, when the center (e.g., the longitudinal centerline) of the optical adhesive layer 23 is aligned with the center (e.g., the longitudinal centerline) of the first structural layer 22 and / or the second structural layer 24, the edge of the optical adhesive layer 23 extends beyond the edge of the first structural layer 22 and / or the second structural layer 24 by a first distance D1.

[0044] It should also be noted that the multiple cutting lines 231 are used to selectively peel off a portion of the optical adhesive layer 23 according to the adhesion offset between the optical adhesive layer 23 and the first structural layer 22 or the second structural layer 24, so as to adjust the outer extension dimension of the edge of the optical adhesive layer 23 relative to the edge of the first structural layer 22 or the second structural layer 24. Here, the outer extension dimension refers to the outer extension dimension of the optical adhesive layer 23 relative to the edge of the first structural layer 22 or the second structural layer 24 after peeling off a portion of the optical adhesive layer 23 according to the offset.

[0045] It should also be noted that, in this article, the edge of the optical adhesive layer 23 can be two opposite edges of the optical adhesive layer 23 or all edges of the optical adhesive layer 23, which can be determined according to the needs of the specific application scenario, and is not limited to the left and right edges of the optical adhesive layer 23 shown in the figure.

[0046] For example, the cover plate 24 can be a glass cover plate, a plastic cover plate, or a ceramic cover plate, etc.

[0047] For example, the display panel 21 may be a flexible display panel.

[0048] For example, the first structural layer 22 can be a back panel layer and the second structural layer 24 can be a display layer; or, the first structural layer 22 can be a display layer and the second structural layer 24 can be a touch layer; or, the first structural layer 22 can be a touch layer and the second structural layer 24 can be a polarizing structural layer 22 (e.g., a polarizer); or, the first structural layer 22 can be a polarizing structural layer 22 and the second structural layer 24 can be a cover plate 24 (e.g., a flexible cover plate).

[0049] For example, the optical adhesive layer 23 is an OCA (optical clear adhesive), OCR (optical clear resin), or OCF (optical clear film) optical adhesive.

[0050] For example, the first structural layer 22 is a polarizing structural layer 22, the second structural layer 24 is a cover plate 24, and the size of the optical adhesive layer 23 is set such that the edge of the optical adhesive layer 23 extends beyond the edge of the polarizing structural layer 22 by a first distance D1. The display module 200 also includes a display panel 21, which can be stacked on the polarizing structural layer 22.

[0051] According to the technical solution of the embodiments of this application, the edge of the optical adhesive layer 23 extends beyond the edge of the first structural layer 22 and / or the second structural layer 24 to provide a margin. Moreover, the edge of the optical adhesive layer 23 is provided with multiple cutting lines 231. After bonding, when the center of the optical adhesive layer 23 is offset from the center of the first structural layer 22 or the second structural layer 24, the optical adhesive layer 23 can be selectively peeled off to a suitable margin according to the offset, thereby avoiding the exposure of the edges of the first structural layer 22 and / or the second structural layer 24 and the local accumulation of the optical adhesive layer 23.

[0052] refer to Figure 8 After peeling off part of the optical adhesive layer 23 according to the adhesion offset between the optical adhesive layer 23 and the first structural layer 22 or the second structural layer 24, the edge of the optical adhesive layer 23 can extend beyond the edge D3 of the first structural layer 22 and / or the second structural layer 24, where D3 and D1 satisfy: D3≤D1.

[0053] In this way, the optical adhesive layer 23 can be appropriately extended to compensate for shrinkage, which can prevent the first structural layer 22 and / or the second structural layer 24 from being exposed (e.g., the optical structural layer is exposed), while avoiding excessive extension causing local accumulation of the adhesive layer.

[0054] In some embodiments, the multiple cutting lines 231 may include n cutting lines 231, where n can satisfy: 2≤n≤20. For example, n can be 3, 4, 6, 8, 10, 12, 14, 16 or 18, etc., to cut the optical adhesive to a suitable size according to the specific bonding offset between the optical adhesive layer 23 and the first structural layer 22 or the second structural layer 24, avoiding too much on one side and too little on the other.

[0055] The edges of the optical adhesive layer 23 can be selectively peeled off using tweezers or clips. Alternatively, other tools can be used to assist in the peeling process.

[0056] Taking the cutting line 231 as two lines and the offset of the optical adhesive layer 23 relative to the first structural layer 22 or the second structural layer 24 as x, in the case of the first side (for example, the left side shown in the figure), after adjustment, the extraterrestrial amount of the optical adhesive layer 23 on the first side is D3a = D2 - x, and the extraterrestrial amount of the optical adhesive layer 23 on the second side opposite to the first side is D3b = x.

[0057] When the offset of the optical adhesive layer 23 relative to the first structural layer 22 or the second structural layer 24 is 0, that is, the center of the optical adhesive layer 23 is basically aligned with the center of the first structural layer 22 or the second structural layer 24, after adjustment, the extraterrestrial amount of the optical adhesive layer 23 on both sides is D3b = D2.

[0058] In one example, multiple cut lines 231 include n cut lines 231, where n satisfies: 6 ≤ n ≤ 20.

[0059] As the number of cutting lines 231 increases, with a fixed initial epitaxial size of the optical adhesive layer 23, the distance between two adjacent cutting lines 231 decreases, allowing for more precise adjustment of the final epitaxial size of the optical adhesive layer 23. Consequently, the difference in epitaxial size between each edge is also smaller. By controlling n within the aforementioned range, the difference in epitaxial size between each edge of the optical adhesive layer 23 and between different sides can be better controlled. Moreover, controlling n within this range allows for a better balance between process implementation difficulty and processing accuracy.

[0060] In one example, along the edge of the optical adhesive layer close to the edge of the first or second structural layer, the spacing D2 between two adjacent cutting lines gradually decreases. This can further reduce the difficulty of the process while better controlling the difference between the epitaxial dimensions of each edge of the optical adhesive layer 233 and the epitaxial dimensions of different sides.

[0061] In some embodiments, the adhesion offset between the optical adhesive layer 23 and the first structural layer 22 or the second structural layer 24 is x, where x ≤ 0.15 mm, for example, 0.02 mm, 0.05 mm, 0.08 mm, 0.10 mm, 0.12 mm, or 0.14 mm, to avoid excessive offset. Exemplarily, along a third direction Y, the adhesion offset between the optical adhesive layer 23 and the first structural layer 22 and / or the second structural layer 24 is x. The third direction Y is perpendicular to the second direction X and the first direction Z, and can be the width direction of the optical adhesive layer 23.

[0062] In some embodiments, D1 ≤ 0.2 mm, for example, 0.02 mm, 0.05 mm, 0.08 mm, 0.10 mm, 0.12 mm, 0.14 mm, 0.16 mm, or 0.18 mm, etc. Controlling the initial epitaxial dimension of the edge of the optical adhesive layer 23 within the above range can avoid waste caused by an excessively large epitaxial dimension.

[0063] It is understood that those skilled in the art can combine the above embodiments as needed.

[0064] Exemplary terminal device

[0065] Secondly, embodiments of this application provide a terminal device, which includes the aforementioned display module 200.

[0066] For example, the terminal device can be a mobile phone, tablet computer, laptop computer, desktop computer, television, smart display, car rearview mirror display, control panel of industrial control equipment, display of medical device, wearable device (e.g., smart watch, smart bracelet) and advertising device (e.g., outdoor advertising screen, electronic billboard).

[0067] Exemplary preparation method

[0068] Thirdly, refer to Figure 9 This application provides a method for manufacturing a display module 200, wherein the display module 200 can be any of the display modules 200 described in the above embodiments, and the manufacturing method includes the following steps:

[0069] S101: Provide a first structural layer 22 and a second structural layer 24, wherein the first structural layer 22 has a first surface.

[0070] S102: An optical adhesive layer 23 is provided on the first surface.

[0071] S103: Based on the adhesion offset between the optical adhesive layer 23 and the first structural layer 22, a portion of the optical adhesive layer 23 is selectively peeled off to adjust the outer dimension of the edge of the optical adhesive layer 23 relative to the edge of the first structural layer 22. Here, the concept of outer dimension can be referred to the explanation in the display module 200 section above, and will not be repeated here.

[0072] S104: A second structural layer 24 is disposed on the surface of the optical adhesive layer 23 that is opposite to the first structural layer 22.

[0073] Below, with reference to Figures 4 to 9, taking the first structural layer 22 as POL, the second structural layer 24 as cover plate 24, and the optical adhesive layer 23 as OCA as an example, the display module 200 of this application and its preparation method will be described in further detail.

[0074] refer to Figures 4 to 8 The embodiment of this application provides a display module 200, which includes a flexible display panel 21, a POL (Positioning Optical Array), a cover plate 24, and an OCA (Optical Coating Atomizer). The POL and the cover plate 24 are stacked along a first direction Z, which is the thickness direction of the display module 200. The OCA is located between the POL and the cover plate 24 and is used to bond the first structural layer 22 and the second structural layer 24. The OCA is designed so that the edge of the optical adhesive layer 23 extends beyond the edge of the POL by a first distance D1. The edge of the OCA is provided with multiple cutting lines 231, including n cutting lines 231, where n satisfies: 6 ≤ n ≤ 20. The distance between two adjacent cutting lines 231 is D2, where D1 and D2 satisfy: D2 ≤ D1.

[0075] refer to Figure 8 After partially peeling off the optical adhesive layer 23 based on the adhesion offset between the optical adhesive layer 23 and the first structural layer 22 and / or the second structural layer 24, the edge of the optical adhesive layer 23 extends beyond the edge D3 of the POL, and D3 and D1 satisfy: D3≤D1.

[0076] The bonding offset between OCA and POL is x, where x ≤ 0.15 mm. D1 ≤ 0.2 mm.

[0077] The OCA has a first protective layer and a second protective layer on both sides. When the optical module is fabricated, the first protective layer is removed and the OCA is attached to the first surface of the POL. Then, the specific value of the attachment offset x between the OCA and the POL is determined. Based on the attachment offset, part of the OCA is peeled off with tweezers to adjust the final epitaxial size of the OCA and the deviation of the epitaxial size.

[0078] This allows the edge of the OCA to extend appropriately relative to the POL, thus preventing the edge of the POL from being exposed. Consequently, in subsequent droplet testing, it reduces and avoids corrosive liquid residue at the edge of the POL, which could lead to POL corrosion failure, and thus prevents the display module 200 from displaying abnormalities during droplet reliability testing. Furthermore, this does not significantly increase production costs.

[0079] Other methods for manufacturing the display module 200 can be found in conventional techniques in the field and will not be elaborated here.

[0080] It should be noted that, for clarity, the complete structure of the aforementioned display module and terminal device is not described. To achieve their necessary functions, those skilled in the art can configure other structures according to specific application scenarios, and the embodiments of this application do not impose such limitations. Similarly, for clarity, not all of the aforementioned preparation processes and techniques are described. To achieve the desired preparation, those skilled in the art can select preparation processes and techniques according to specific application scenarios, and the embodiments of this application do not impose such limitations.

[0081] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0082] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications or equivalent substitutions made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A display module, characterized in that, include: A first structural layer and a second structural layer are stacked along a first direction, wherein the first direction is the thickness direction of the display module; as well as An optical adhesive layer is located between the first structural layer and the second structural layer, and is used to bond the first structural layer and the second structural layer. in The optical adhesive layer is sized such that its edge extends beyond the edge of the first structural layer and / or the second structural layer by a first distance D1. The edge of the optical adhesive layer has multiple cutting lines, which are used to selectively peel off a portion of the optical adhesive layer according to the adhesion offset between the optical adhesive layer and the first or second structural layer to adjust the outer dimension of the edge of the optical adhesive layer relative to the edge of the first or second structural layer. The distance between two adjacent cutting lines is D2, and D1 and D2 satisfy: D2≤D1.

2. The display module according to claim 1, characterized in that, After peeling off a portion of the optical adhesive layer according to the adhesion offset between the optical adhesive layer and the first structural layer or the second structural layer, the edge of the optical adhesive layer can extend beyond the edge D3 of the first structural layer and / or the second structural layer, wherein D3 and D1 satisfy: D3≤D1.

3. The display module according to claim 1, characterized in that, The plurality of cutting lines includes n cutting lines, wherein n satisfies: 2≤n≤20.

4. The display module according to claim 3, characterized in that, The plurality of cutting lines includes n cutting lines, wherein n satisfies: 6≤n≤20.

5. The display module according to any one of claims 1 to 4, characterized in that, The offset between the optical adhesive layer and the first structural layer or the second structural layer is x, where x ≤ 0.15 mm.

6. The display module according to claim 5, characterized in that, D1≤0.2mm.

7. The display module according to claim 5, characterized in that, The edges of the optical adhesive layer can be selectively peeled off using tweezers or clips; and / or, Along the edge of the optical adhesive layer, close to the edge of the first structural layer or the second structural layer, the spacing D2 between two adjacent cutting lines gradually decreases.

8. The display module according to any one of claims 1 to 4, characterized in that, The first structural layer is a polarizing structural layer, the second structural layer is a cover plate, and / or, The optical adhesive layer is sized such that the edge of the optical adhesive layer extends beyond the edge of the polarizing structure layer by a first distance D1.

9. A terminal device, characterized in that, Includes the display module according to any one of claims 1 to 8.

10. A method for manufacturing a display module, characterized in that, The display module includes a first structural layer, a second structural layer, and an optical adhesive layer. The optical adhesive layer is sized such that its edge extends beyond the edge of the first or second structural layer by a first distance D1. The edge of the optical adhesive layer has multiple cutting lines, and the distance between two adjacent cutting lines is D2. D1 and D2 satisfy: D2 ≤ D1. The fabrication method includes: A first structural layer and a second structural layer are provided, wherein the first structural layer has a first surface; The optical adhesive layer is disposed on the first surface; Based on the adhesion offset between the optical adhesive layer and the first structural layer, a portion of the optical adhesive layer is selectively peeled off to adjust the outer dimension of the edge of the optical adhesive layer relative to the edge of the first structural layer; and A second structural layer is disposed on the surface of the optical adhesive layer opposite to the first structural layer.

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