Display device and method for manufacturing the same

Abstract

The present application provides a display device and a manufacturing method thereof, relating to the technical field of displays, and is used to solve the technical problem of poor bending ability of existing display devices. The display device includes a screen body, a first adhesive layer, a polarizer, and a cover plate that are sequentially stacked on the screen body; the cover plate includes a first region and a second region located outside the first region, wherein the first region corresponds to the display region of the screen body, and the second region corresponds to the non-display region of the screen body; the cover plate is provided with a through hole located in the second region, and the through hole is provided through; the first adhesive layer is disposed in the through hole and is used to connect the polarizer and the cover plate. The display device and the manufacturing method thereof provided by the present application can reduce the overall thickness of the display device and improve its bending performance.

Description

Technical Field

[0001] This application relates to the field of display technologies, and in particular, to a display device and a manufacturing method thereof. Background Art

[0002] An Organic Light Emitting Display (OLED) panel has characteristics such as self-luminescence, fast response, and wide viewing angle, and is increasingly applied to high-performance display fields such as flexible display devices.

[0003] An OLED display device generally includes a screen body, a polarizer, and a flexible cover plate. Among them, the polarizer is disposed on the screen body, a transparent adhesive layer is provided between the polarizer and the flexible cover plate, the transparent adhesive layer covers the polarizer, and the polarizer and the cover plate are connected together through the transparent adhesive layer. However, the bending performance of the above OLED display device is poor. Summary of the Invention

[0004] In view of the above problems, embodiments of this application provide a display device and a manufacturing method thereof, which can reduce the overall thickness of the display device and improve its bending performance.

[0005] To achieve the above object, embodiments of this application provide the following technical solutions:

[0006] In a first aspect of embodiments of this application, there is provided a display device, including a screen body, a first adhesive layer, a polarizer, and a cover plate that are sequentially stacked on the screen body; the cover plate includes a first region and a second region located outside the first region, where the first region corresponds to the display region of the screen body, the second region corresponds to the non-display region of the screen body, a through hole is formed in the second region of the cover plate, and the through hole is formed through; the first adhesive layer is disposed in the through hole and is used to connect the polarizer and the cover plate.

[0007] In a possible implementation manner, the through holes are provided as at least two and are arranged at intervals along the circumferential direction of the second region.

[0008] In a possible implementation manner, a groove is formed by recessing one side surface of the cover plate facing the polarizer, the groove is located in the second region and communicates with the through hole; the display device further includes a second adhesive layer disposed in the groove, and the second adhesive layer is also used to connect the polarizer and the cover plate.

[0009] In a possible implementation manner, the groove communicates two adjacent through holes; preferably, corresponding grooves are provided between any two adjacent through holes, and the first adhesive layer and the second adhesive layer are integrally provided in a ring shape.

[0010] In a possible implementation, both the first adhesive layer and the second adhesive layer are set as black light-shielding adhesive layers.

[0011] In a possible implementation, it further includes a hard protective layer; the hard protective layer is disposed on the cover plate and covers the entire cover plate.

[0012] The second aspect of the embodiments of the present application provides a method for manufacturing a display device, which includes the following steps:

[0013] Form a polarizer on the screen body;

[0014] Press the cover plate on the polarizer. The cover plate has a first area and a second area. The second area corresponds to the non-display area of the screen body, and a through hole is formed in the second area and penetrates through.

[0015] Fill the through hole with an adhesive to form a first adhesive layer for connecting the polarizer and the cover plate.

[0016] In a possible implementation, the preparation process of the cover plate includes: performing laser etching on the cover plate to be processed to form the through hole;

[0017] Preferably, perform laser etching on the surface of the cover plate to be processed to form a groove communicating with the through hole.

[0018] In a possible implementation, in the step of filling the through hole with an adhesive, it further includes: controlling the adhesive to fill from the through hole into the groove to form a second adhesive layer in the groove.

[0019] In a possible implementation, it further includes: preparing a hard protective layer on the cover plate, and the hard protective layer covers the entire cover plate and the first adhesive layer.

[0020] Compared with the related art, the display device and the manufacturing method thereof provided by the embodiments of the present application have the following advantages;

[0021] The display device and the manufacturing method thereof provided by the embodiments of the present application, wherein the display device includes a screen body, a polarizer, a cover plate and a first adhesive layer. The polarizer is disposed on the screen body, and the cover plate is covered on the polarizer. The cover plate includes a first area and a second area. The second area is disposed on the periphery of the first area, and the second area corresponds to the non-display area of the screen body, and the first area corresponds to the display area of the screen body.

[0022] The cover plate is provided with a through hole penetrating therethrough, and the through hole is located in the second region; the first adhesive layer is disposed in the through hole, the bottom surface of the first adhesive layer is attached to and bonded with the polarizer, and the side surface of the adhesive layer is attached to and bonded with the cover plate, that is, the polarizer and the cover plate are connected together through the first adhesive layer.

[0023] Compared with the related art in which a transparent adhesive layer is provided between the polarizer and the cover plate, the transparent adhesive layer is laid on the polarizer, and the polarizer and the cover plate are connected together through the transparent adhesive layer, the display device provided by the embodiment of the present application sets the first adhesive layer in the through hole in the second region of the cover plate and can connect the polarizer and the cover plate together, which can reduce the overall thickness of the display device to improve the bending performance of the display device.

[0024] In addition to the technical problems solved by the embodiments of the present disclosure described above, the technical features constituting the technical solutions, and the beneficial effects brought by the technical features of these technical solutions, other technical problems that can be solved by the display device and the manufacturing method thereof provided by the embodiments of the present disclosure, other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the specific implementation manner. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a top view of the display device provided by the embodiment of the present application;

[0027] Figure 2 is Figure 1 the sectional view taken along the line A-A in

[0028] Figure 3 It is a layout schematic diagram of the first adhesive layer provided by the embodiment of the present application;

[0029] Figure 4 is Figure 3 the sectional view taken along the line B-B in

[0030] Figure 5 is Figure 3 the sectional view C-C in

[0031] Figure 6 It is a schematic flow chart of the manufacturing method of the display device provided by the embodiment of the present application.

[0032] Description of the Reference Numerals:

[0033] 10 - Screen body;

[0034] 20 - Polarizer;

[0035] 30 - Cover plate;

[0036] 31 - First region; 32 - Second region; 321 - Overlap region; 322 - Through - hole;

[0037] 41 - First adhesive layer; 42 - Second adhesive layer;

[0038] 100 - Display device. Detailed implementation manners

[0039] As described in the background art, the bending performance of the OLED display device in the related art is poor. After research by the applicant, it is found that the reason for this problem is that the OLED display device generally includes a screen body, a polarizer, and a flexible cover plate. The polarizer is disposed on the screen body, and a transparent adhesive layer is disposed between the polarizer and the flexible cover plate. The transparent adhesive layer covers the polarizer, and the polarizer and the cover plate are connected together through the transparent adhesive layer, so that the overall thickness of the display device increases, resulting in a decrease in the flexibility of the display device and affecting its bending performance.

[0040] In view of the above - mentioned technical problems, the embodiments of the present application provide a display device and a manufacturing method thereof. The display device includes a screen body, a polarizer, a cover plate, and a first adhesive layer. Among them, the polarizer is disposed on the screen body, and the cover plate is disposed on the polarizer. The cover plate includes a first region and a second region. The second region is disposed on the periphery of the first region, the second region corresponds to the non - display region of the screen body, and the first region corresponds to the display region of the screen body.

[0041] The cover plate is provided with a through - hole penetrating therethrough, and the through - hole is located in the second region. The first adhesive layer is disposed in the through - hole and is used to connect the polarizer and the cover plate. Such a setting can reduce the overall thickness of the display device to improve the bending performance of the display device.

[0042] In order to make the above - mentioned objects, features, and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the embodiments described in the present application are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0043] Such as Figure 1 and Figure 2As shown in the figure, the display device 100 provided by the embodiment of the present application includes a screen body 10, a polarizer 20, and a cover plate 30. Among them, the polarizer 20 and the cover plate 30 are sequentially stacked on the screen body 10. For example, the screen body 10 may be an OLED display panel. The polarizer 20 is bonded to the screen body 10 through a transparent optical adhesive layer. The cover plate 30 is disposed on the polarizer 20 and provides protection for the entire display device 100.

[0044] For the convenience of describing this embodiment, the screen body 10 provided by the embodiment of the present application includes a display area and a non-display area. The non-display area surrounds the periphery of the display area. The cover plate 30 includes a first area 31 and a second area 32. Among them, the second area 32 surrounds the periphery of the first area 31, and the first area 31 corresponds to the display area, and the second area 32 corresponds to the non-display area.

[0045] Along the thickness direction of the cover plate 30, the cover plate 30 is provided with a through hole 322 penetrating therethrough, and the through hole 322 is located in the second area 32. The through hole 322 can extend to the surface of the polarizer 20; that is to say, the extending direction of the through hole 322 is consistent with the thickness direction of the cover plate 30 and the thickness direction of the display device.

[0046] For example, the screen body 10 is a rectangular display panel, and the screen body 10 includes a rectangular display area; correspondingly, the cover plate 30 is integrally rectangular, and it includes a rectangular first area 31, and the second area 32 surrounds the periphery of the first area 31. The through hole 322 can be a circular hole, a rectangular hole, etc., or an annular hole arranged around the first area 31. This embodiment does not limit this; the number of through holes 322 can be 1 or at least 2. This embodiment does not limit this either.

[0047] Preferably, at least 2 through holes 322 can be arranged in the second area 32, and the multiple through holes 322 are arranged at intervals along the circumferential direction of the second area 32. There is an overlapping area 321 between two adjacent through holes 322. The overlapping area 321 is used to connect the first area 31 and the second area 32 of the cover plate 30 together. For example, a plurality of rectangular through holes are arranged at intervals along the circumferential direction of the second area 32, and there is an overlapping area 321 between two adjacent rectangular through holes.

[0048] With such a setting, the frame formed by the edge of the cover plate 30 can be connected to the first area 31 of the cover plate 30 through the overlapping area 321, preventing the frame from detaching from the main body of the cover plate 30; it should be noted that this embodiment is described by taking the second area 32 being provided with multiple through holes 322 as an example.

[0049] A plurality of through holes 322 in the second region 32 respectively penetrate through the cover plate 30. When the cover plate 30 is bonded to the polarizer 20, the through holes 322 can extend to the upper surface of the polarizer 20. In order to connect the polarizer 20 and the cover plate 30 together, a first adhesive layer 41 is respectively arranged in each through hole 322 in the embodiment of the present application.

[0050] As Figure 3 and Figure 4 shown, in the embodiment of the present application, the first adhesive layer 41 is embedded in the through hole 322. The bottom surface of the first adhesive layer 41 is attached to and bonded to the upper surface of the polarizer 20, and the two side surfaces of the first adhesive layer 41 are respectively attached to and bonded to the side walls forming the through hole 322, that is, the first adhesive layer 41 can connect the polarizer 20 and the cover plate 30 together.

[0051] Compared with the related art in which a transparent optical adhesive layer is arranged between the polarizer 20 and the flexible cover plate 30, the transparent optical adhesive layer covers the polarizer 20, and the polarizer 20 and the cover plate 30 are connected together through the transparent optical adhesive layer, the display device 100 provided by the embodiment of the present application arranges the first adhesive layer 41 in the through hole 322 of the cover plate 30, that is, the first adhesive layer 41 is embedded in the cover plate 30 and can connect the polarizer 20 and the cover plate 30 together. Such an arrangement can reduce the overall thickness of the display device 100 to improve the bending performance of the display device 100.

[0052] As Figure 5 shown, on the basis of the above embodiment, in order to increase the bonding area between the cover plate 30 and the polarizer 20 to improve the connection strength between the two; a groove is further arranged in the second region 32 in the embodiment of the present application. The groove is located in the overlapping region 321, and a second adhesive layer 42 is arranged in the groove. The second adhesive layer 42 is also used to connect the polarizer 20 and the cover plate 30.

[0053] Furthermore, the groove in the embodiment of the present application can be communicated with the through hole 322. Such an arrangement can connect the first adhesive layer 41 and the second adhesive layer 42 together to improve the bonding ability of the adhesive layer. Moreover, the first adhesive layer 41 formed in the through hole 322 and the second adhesive layer 42 formed in the groove can be manufactured together to improve the manufacturing efficiency.

[0054] Preferably, in the embodiment of the present application, a groove can be arranged in the overlapping region 321 between two adjacent through holes 322, and the groove is respectively communicated with the above two through holes 322. For example, grooves are respectively arranged between any two adjacent through holes 322, and a second adhesive layer 42 is arranged in each groove. Such an arrangement can make the first adhesive layer 41 arranged in the through hole 322 form an integral structure with the second adhesive layer 42 and be arranged in a ring shape in the second region 32. That is, in the embodiment of the present application, the entire second region 32 can be coated with an adhesive to form an adhesive layer.

[0055] Further, the above-mentioned groove can be selectively arranged on the side of the cover plate 30 facing the polarizer 20, or on the side of the cover plate 30 away from the polarizer 20. In this embodiment, the groove is preferably arranged on the side of the cover plate 330 facing the polarizer 20; such an arrangement can make the side of the cover plate 30 away from the polarizer 20 flat and beautiful, so as to facilitate the subsequent formation of other structural layers on the cover plate 30, such as a hard protective layer. In order to form a shielding layer in the second area 32 and improve the appearance of the display device 100, the first adhesive layer 41 and the second adhesive layer 42 in the embodiments of the present application are both black light-shielding adhesive layers.

[0056] Specifically, a black light-shielding adhesive is applied in the second area 32 to form a black light-shielding adhesive layer. Part of the black light-shielding adhesive layer fills the through hole 322 to form the first adhesive layer 41, and the first adhesive layer 41 can connect the polarizer 20 and the cover plate 30 together. Part of the black light-shielding adhesive layer fills the groove to form the second adhesive layer 42, and the second adhesive layer 42 is also used to connect the polarizer 20 and the cover plate 30; that is, the first adhesive layer 41 and the second adhesive layer 42 can cover the entire second area 32, which can not only connect the polarizer 20 and the cover plate 30, but also form a shielding layer.

[0057] It should be noted that the first adhesive layer 41 in the embodiments of the present application is embedded in the through hole 322. Along the thickness direction of the cover plate 30 (along the extension direction of the through hole 322), the bottom surface of the first adhesive layer 41 is attached to and bonded with the upper surface of the polarizer 20, and the top surface of the first adhesive layer 41 is flush with the upper surface of the cover plate 30; such an arrangement is to ensure the flatness of the hard protective layer formed on the cover plate 30.

[0058] The second adhesive layer 42 covers the entire overlapping area 321, that is, the second adhesive layer 42 is embedded in the groove, one side of the second adhesive layer 42 is attached to and bonded with the bottom surface of the groove, and the other side of the second adhesive layer 42 is flush with the lower surface of the cover plate 30.

[0059] The cover plate 30 provided by the embodiments of the present application can be a flexible cover plate. To avoid scratching the surface of the cover plate 30 or damaging the first adhesive layer 41 formed on the cover plate 30, a hard protective layer is provided on the cover plate 30, and the hard protective layer can cover the entire cover plate 30, that is, the hard protective layer covers the first area 31 and the second area 32.

[0060] As Figure 6 shown, the manufacturing method of the display device 100 provided by the embodiments of the present application includes the following steps:

[0061] Step S100: Form a polarizer 20 on the screen body 10; specifically, the polarizer 20 is bonded to the screen body 10 through a transparent optical adhesive layer. The screen body 10 can be a rectangular display panel, which includes a rectangular display area and a non-display area surrounding the display area. The polarizer 20 covers the screen body 10 and can cover the display area and the non-display area.

[0062] Step S200: Press and connect a cover plate 30 onto the polarizer 20. The cover plate 30 has a first area 31 and a second area 32. The second area 32 corresponds to the non-display area of the screen body 10, and a through hole 322 is formed in the second area 32 and runs through it.

[0063] Specifically, step S200 includes step S201 and step S202. Among them, step S201: Perform laser etching on the cover plate 30 to be processed to form a through hole.

[0064] Exemplarily, the cover plate 30 can be a flexible substrate. For example, the cover plate 30 can be made of a polyacetamide material with a high light transmittance. The cover plate 30 includes a first area 31 and a second area 32. The first area 31 is arranged in cooperation with the display area of the screen body 10, and the second area 32 is arranged on the periphery of the first area 31 and is arranged in cooperation with the non-display area of the screen body 10.

[0065] Perform laser cutting or laser etching on the second area 32 to form at least one through hole 322 in the second area 32. The through hole 322 runs through the cover plate 30 along the thickness direction of the cover plate 30.

[0066] Step S202: Cover the cover plate 30 on the polarizer 20 and make the through hole 322 extend to the surface of the polarizer 20. The first area 31 corresponds to the display area of the screen body 10, and the second area 32 corresponds to the non-display area of the screen body 10. To keep the bottom surface of the cover plate 30 in contact with the top surface of the polarizer 20, pressure can be applied to the cover plate 30, so that the cover plate 30 is pressed and bonded to the polarizer 20. For example, a jig can be applied to the surface of the cover plate 30, and the jig presses on the first area 31 of the cover plate 30.

[0067] Step S300: Fill the through hole 322 with an adhesive to form a first adhesive layer 41 for connecting the polarizer 20 and the cover plate 30.

[0068] Specifically, apply an adhesive to the second area 32 to form an adhesive layer in the second area 32. Part of the adhesive fills the through hole 322 and forms a first adhesive layer 41 in the through hole 322. The bottom surface of the first adhesive layer 41 is in contact with and bonded to the polarizer 20, and the side surface of the first adhesive layer 41 is in contact with and fixed to the side wall of the through hole 322 formed, that is, the first adhesive layer 41 connects the polarizer 20 and the cover plate 30 together.

[0069] It should be noted that the above-mentioned adhesive can be a black light-shielding adhesive. The first adhesive layer 41 formed in the through hole 322 of the cover plate 30 can be a black light-shielding adhesive layer, and the outer surface of the black light-shielding adhesive layer can be flush with the outer surface of the cover plate 30, so as to facilitate the formation of a hard protective layer on the cover plate 30.

[0070] Step S400: Prepare a hard protective layer on the cover plate 30, and the hard protective layer covers the entire cover plate and the first adhesive layer; specifically, after the first adhesive layer 41 is formed in the through hole 322 of the cover plate 30, a layer of hard material is deposited on the cover plate 30 to form a hard protective layer covering the entire cover plate.

[0071] In the manufacturing method of the display device 100 provided by the embodiment of the present application, the first adhesive layer 41 is disposed in the through hole 322 of the cover plate 30, that is, the first adhesive layer 41 is embedded in the cover plate 30 and can connect the polarizer 20 and the cover plate 30 together. Such a setting can reduce the overall thickness of the display device 100 to improve the bending performance of the display device 100.

[0072] In some embodiments, in step S201 of the embodiment of the present application: during the process of laser etching the cover plate 30 to be processed to form the through hole 322, it further includes: laser etching the surface of the cover plate 30 to be processed to form a groove communicating with the through hole 322.

[0073] Exemplarily, the second region 32 of the cover plate 30 is laser-etched to form a plurality of through holes 322 arranged at intervals along the circumference of the second region 32, and there is an overlapping region 321 between two adjacent through holes 322.

[0074] For example, the second region 32 of the cover plate 30 is laser-etched to form a plurality of through holes 322 in the second region 32. The plurality of through holes 322 are arranged at intervals along the circumference of the second region 32, and there is a reserved overlapping region 321 between two adjacent through holes 322. That is, the second region 32 of the cover plate 30 is incompletely etched along its circumference to form an overlapping region 321 in a part of the second region 32, preventing the circumferential complete etching of the second region 32 and causing the formed border to be separated from the first region 31 of the cover plate 30.

[0075] To form a complete shielding adhesive layer along the circumference of the second region 32 so that the shielding adhesive layer can shield the non-display area of the screen body 10; in this embodiment, the overlapping region 321 can be etched to form a groove in the overlapping region 321.

[0076] Etch the overlapping area 321 reserved for the second area 32 to form a recessed or grooved structure, and the groove communicates with the through hole 322. When the cover plate 30 is pressed onto the polarizer 20, the groove can be located on the side of the cover plate 30 facing the polarizer 20. With this arrangement, the black light-shielding adhesive layer formed subsequently in the second area 32 can cover the overlapping area 321, so that the first adhesive layer 41 and the second adhesive layer 42 are connected, that is, the entire black light-shielding adhesive layer forms an integral structure.

[0077] It should be noted that during the process of filling the bonding adhesive into the through hole 322, the bonding adhesive can be filled into the through hole 322 and flow from the through hole 322 into the groove communicating therewith to form the second adhesive layer 42 in the groove.

[0078] In this specification, the various embodiments or implementation manners are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0079] It should be pointed out that phrases such as "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when combining embodiments to describe specific features, structures or characteristics, it is within the knowledge scope of those skilled in the art to implement such features, structures or characteristics in combination with other embodiments that are explicitly or implicitly described.

[0080] Generally speaking, terms should be understood at least in part by their use in the context. For example, at least in part according to the context, the term "one or more" used in the text can be used to describe any feature, structure or characteristic in the sense of a singular, or can be used to describe a combination of features, structures or characteristics in the sense of a plural. Similarly, at least in part according to the context, terms such as "a" or "the" can also be understood to convey a singular usage or a plural usage.

[0081] It should be easily understood that the terms "on...", "above...", and "over..." in this disclosure should be interpreted in the broadest manner, so that "on..." not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above..." or "over..." not only includes the meaning of "above something" or "over it", but also can include the meaning of "above something" or "over it" without intermediate features or layers therebetween (that is, directly on something).

[0082] The term "substrate" as used herein refers to a material on which subsequent material layers are added. The substrate itself can be patterned. The material added on top of the substrate can be patterned or can remain unpatterned. In addition, the substrate can include a wide range of materials, such as, for example, silicon, germanium, gallium arsenide, indium phosphide, etc. Alternatively, the substrate can be made of a non-conductive material (such as, for example, glass, plastic, or sapphire wafer, etc.).

[0083] The term "layer" as used herein can refer to a portion of a material that includes a region having a certain thickness. The layer can extend over the entire underlying or overlying structure, or can have a smaller extent than the underlying or overlying structure. In addition, the layer can be a region of a homogeneous or non-homogeneous continuous structure, the thickness of which is less than the thickness of the continuous structure. For example, the layer can be located between the top and bottom surfaces of the continuous structure or between any pair of lateral planes at the top and bottom surfaces. The layer can extend laterally, vertically, and / or along a tapered surface. The substrate can be a layer, can include one or more layers therein, and / or can have one or more layers located thereon, above it, and / or below it. A layer can include multiple layers. For example, an interconnect layer can include one or more conductors and contact layers (in which contacts, interconnect lines, and / or vias are formed) and one or more dielectric layers.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display device, characterized in that, It includes a screen body, a first adhesive layer, a polarizer, and a cover plate that are sequentially stacked on the screen body; The cover plate includes a first area and a second area located outside the first area. Among them, the first area corresponds to the display area of the screen body, and the second area corresponds to the non-display area of the screen body. The cover plate is provided with through holes located in the second area, and the through holes are arranged in a penetrating manner. The through holes are provided with at least two and are arranged at intervals along the circumferential direction of the second area; a groove is formed by the depression on the surface of the cover plate facing the polarizer, and the groove is located in the second area and communicates with the through holes; The first adhesive layer is arranged in the through holes. The bottom surface of the first adhesive layer is attached to and bonded with the upper surface of the polarizer, and the side surface of the first adhesive layer is attached to and bonded with the side wall of the through holes, and is used to connect the polarizer and the cover plate; The display device further includes a second adhesive layer arranged in the groove, and the second adhesive layer is also used to connect the polarizer and the cover plate.

2. The display device according to claim 1, wherein The groove communicates with two adjacent through holes.

3. The display device according to claim 2, wherein, A corresponding groove is provided between any two adjacent through holes, and the first adhesive layer and the second adhesive layer are integrally arranged in a ring shape.

4. The display device according to claim 1, wherein Both the first adhesive layer and the second adhesive layer are arranged as black light-shielding adhesive layers.

5. The display device according to claim 1, wherein It further includes a hard protective layer; the hard protective layer is arranged on the cover plate and covers the entire cover plate.

6. A manufacturing method of a display device, the manufacturing method of the display device being applied to the display device according to any one of claims 1-5, characterized in that, It includes the following steps: Form a polarizer on the screen body; Press the cover plate on the polarizer. The cover plate has a first area and a second area, and the second area corresponds to the non-display area of the screen body. The second area is provided with through holes, and the through holes are arranged in a penetrating manner; Fill the through holes with an adhesive to form a first adhesive layer for connecting the polarizer and the cover plate. The bottom surface of the first adhesive layer is attached to and bonded with the upper surface of the polarizer, and the side surface of the first adhesive layer is attached to and bonded with the side wall of the through holes.

7. The manufacturing method of the display device according to claim 6, characterized in that, The preparation process of the cover plate includes: Perform laser etching on the cover plate to be processed to form the through holes.

8. According to the manufacturing method of the display device described in claim 7, perform laser etching on the surface of the cover plate to be processed to form a groove communicating with the through holes.

9. The manufacturing method of the display device according to claim 8, characterized in that, In the step of filling the through holes with an adhesive, it further includes: Control the adhesive to fill from the through holes into the groove to form a second adhesive layer in the groove.

10. The manufacturing method of the display device according to any one of claims 6 to 9, characterized in that, It further includes: Prepare a hard protective layer on the cover plate, and the hard protective layer covers the entire cover plate and the first adhesive layer.

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