Cover plate and display device

Abstract

The application discloses a cover plate and a display device, comprising a display surface and a non-display surface which are away from each other, the display surface is divided into a pasting area and a display area, the pasting area is arranged around the display area, the display area is covered with an anti-fingerprint film, and the anti-fingerprint film pattern is formed in the area where the anti-fingerprint film is not arranged in the pasting area. According to the technical scheme provided by the embodiment of the application, the display surface of the cover plate is divided into the pasting area and the display area, the pasting area is used for bonding with the whole machine, the anti-fingerprint film is removed in the pasting area, the liquid glue has more accommodation space in the pasting area, the anti-fingerprint film on the cover plate has little influence on the liquid glue when the cover plate is bonded with the whole machine through the liquid glue, and the bonding between the cover plate and the whole machine is more firm.

Description

Technical Field

[0001] This invention generally relates to the field of display technology, and more particularly to cover plates and display devices. Background Technology

[0002] Anti-fingerprint film (AF film) is a high-transparency anti-fingerprint and anti-oil film. It is made by spraying a layer of AF anti-fingerprint oil, anti-fingerprint liquid or nano coating onto the surface of the glass cover by an AF spraying machine. After the AF anti-fingerprint oil comes into contact with the substrate, it forms a film layer with a thickness of 10-20nm with a strong molecular structure to ensure the excellent performance of the substrate surface in terms of anti-fouling and anti-scratch.

[0003] The customer's CG (cover glass) is an upper-bonded structure. The CG surface is generally treated with a front-side anti-fingerprint film. Due to the special composition of the anti-fingerprint film layer, the adhesion between the anti-fingerprint film and the liquid adhesive is insufficient, resulting in poor airtightness of the whole machine. Airtightness tests show bubbles. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a cover plate and a display device.

[0005] In a first aspect, a cover plate is provided, comprising a display surface and a non-display surface that are opposite to each other, wherein the display surface is divided into an adhesive area and a display area, and the adhesive area is disposed around the display area.

[0006] The display area is covered with an anti-fingerprint film, and at least a portion of the adhesive area is not covered with an anti-fingerprint film to form an anti-fingerprint film pattern.

[0007] As an alternative solution, the anti-fingerprint film on the display surface located in the adhesive area is removed by laser.

[0008] As an feasible solution, the ratio of the width of the pasting area to the width of the cover plate is 2.6%-5%.

[0009] As an feasible solution, the anti-fingerprint film is not provided in any of the pasting areas.

[0010] As an feasible solution, an anti-fingerprint film pattern is formed in the areas of the adhesive area where the anti-fingerprint film is not provided, and the area of ​​the anti-fingerprint film in the adhesive area accounts for at most 34% of the area of ​​the adhesive area.

[0011] As an feasible solution, the anti-fingerprint film pattern includes multiple repeating sub-patterns, each sub-pattern including at least two staggered grooves with an included angle of 15°-90° between the two grooves.

[0012] As an alternative, the sub-patterns set on the pasting area are not all oriented in the same direction.

[0013] As an feasible solution, the number of sub-patterns set in the pasting area is no less than 3.

[0014] As an feasible solution, the sub-pattern is wavy, and the wavy sub-pattern is symmetrically arranged on the pasting area, with the included angle between the two sub-patterns being 120°-150°.

[0015] As an feasible solution, the sub-pattern is a square shape, or the sub-pattern includes multiple crisscrossing grooves.

[0016] The pattern is formed by laser engraving.

[0017] Secondly, a display device is provided, including the aforementioned cover plate.

[0018] According to the technical solution provided in the embodiments of this application, by dividing the cover plate display surface into an adhesive area and a display area, the adhesive area is used to bond with the whole machine. By removing the anti-fingerprint film in the adhesive area, the liquid adhesive has more space to accommodate the liquid adhesive. When the cover plate is bonded to the whole machine with the liquid adhesive, the oleophobic and hydrophobic anti-fingerprint film on the cover plate has less impact on the liquid adhesive, making the bond between the cover plate and the whole machine more secure. Attached Figure Description

[0019] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the cover plate used in this embodiment;

[0021] Figures 2-5 These are top views of each cover plate in the embodiment;

[0022] Figure 6 This embodiment shows a top view of the display module;

[0023] Figure 7 This is a schematic diagram of the cross-section of the display module in this embodiment. Detailed Implementation

[0024] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Please refer to Figure 1 This embodiment provides a cover plate 10, including a display surface and a non-display surface that are opposite to each other. The display surface is divided into an adhesive area B and a display area A, and the adhesive area B is arranged around the display area A.

[0027] The display area A is covered with an anti-fingerprint film 20, while at least a portion of the adhesive area B is not covered with an anti-fingerprint film.

[0028] The cover plate 10 provided in this embodiment has an adhesive area B and a display area A on the display surface. The adhesive area B is used to bond with the whole machine. By removing the anti-fingerprint film 20 in the adhesive area B, the liquid adhesive has more space to accommodate the liquid adhesive. The liquid adhesive fills the space between the whole machine structure to be bonded and the cover plate, generally covering the adhesive area and the side area of ​​the cover plate. This makes the oleophobic and hydrophobic anti-fingerprint film on the cover plate 10 have less impact on the liquid adhesive when the cover plate 10 is bonded to the whole machine with the liquid adhesive, making the bond between the cover plate 10 and the whole machine more secure.

[0029] Optionally, the anti-fingerprint film on the display surface located in the adhesive area B is removed by laser. During the fabrication of the cover plate 10, an anti-fingerprint film is applied to its entire surface. This film serves to prevent fingerprints and oil stains, ensuring the cleanliness of the substrate surface. Therefore, when the cover plate 10 is packaged and bonded to the entire device, the anti-fingerprint film in certain areas, such as the adhesive area B, needs to be removed. The surface of the cover plate 10 after removing the localized anti-fingerprint film forms a stepped structure. During bonding, liquid adhesive fills the space beneath the steps, resulting in a stronger bond between the cover plate 10 and the entire device. Optionally, the anti-fingerprint film in the adhesive area B can be removed using a laser process. Laser removal of AF adhesive is a relatively stable process and allows for good control over the location of anti-fingerprint film removal, accurately controlling the range of the adhesive area B.

[0030] Optionally, the ratio of the width of the pasting area B to the width of the cover plate is 2.6%-5%.

[0031] The extent of the adhesive area B is adjusted according to the requirements of different products. Based on the conventional formula for calculating adhesive strength: Adhesive strength = Viscosity (gf / inch) * Adhesion size; viscosity is an inherent property of the adhesive, and this parameter generally remains unchanged unless the type of adhesive is changed by the client. Without reducing the display area, the adhesive strength can only be improved by increasing the adhesion size. Generally, the width of the adhesive area B needs to be at least 2.6% of the cover plate width to ensure no detachment during drop tests. Considering that a typical cover plate 10 weighs 35-45g (optional applications in wearable devices), and the viscosity of conventional adhesives is approximately 1000gf / inch, calculations show that a minimum width of 1mm is sufficient to ensure the adhesive force between the cover plate and the device essentially offsets the weight of the cover plate 10. If the cover plate 10 is larger and heavier, the width of the adhesive area B also needs to be increased accordingly. Meanwhile, if there are forces in other directions, such as when the whole machine is dropped, the whole machine will be subjected to forces in various directions, and there will also be a certain acceleration during the drop. By analyzing the overall force on the whole machine, it can be concluded that the cover plate 10 will peel off directly during the drop. Therefore, the width of the adhesive area B of the cover plate 10 is set to be greater than or equal to 1mm. Generally, the adhesive area B is formed to be greater than 1mm wide. Optionally, the width of the adhesive area B is set to 1-2mm.

[0032] Optionally, the width of the adhesive area can be set to 2.6% of the cover plate width. For example, if a 1.5-inch cover plate is used, the width of the adhesive area can be set to 1mm. Alternatively, the width of the adhesive area can be set to 5% of the cover plate width. For example, if a 1.5-inch cover plate is used, the width of the adhesive area can be set to 2mm. Alternatively, the width of the adhesive area can be set to 4% of the cover plate width. For example, if a 1.5-inch cover plate is used, the width of the adhesive area can be set to 1.5mm.

[0033] If the cover plate 10 has dimensional requirements and the area of ​​the pasting area B needs to be compressed, a pattern design can be made for the pasting area B to increase the adhesive capacity and improve the bonding strength between the cover plate 10 and the whole machine.

[0034] Optionally, the anti-fingerprint film is not provided in any of the pasting areas B.

[0035] like Figure 2 As shown, optionally, in this embodiment, the anti-fingerprint film within the area of ​​the pasting area B is removed, so that the surface of the pasting area B forms a stepped structure. The shorter side of the stepped structure is used to accommodate the adhesive. The stepped structure is filled with adhesive, making the fit between the whole machine and the cover plate 10 more secure.

[0036] Optionally, an anti-fingerprint film pattern 11 is formed in the area of ​​the adhesive area B where the anti-fingerprint film is not provided, and the area of ​​the anti-fingerprint film in the adhesive area accounts for at most 34% of the area of ​​the adhesive area.

[0037] In this embodiment, the anti-fingerprint film in the adhesive area B is selectively removed, and a corresponding pattern is formed at the location where the anti-fingerprint film is removed. The pattern can increase the adhesive's capacity, resulting in a better fit between the cover and the entire device. Alternatively, the anti-fingerprint film in the adhesive area B can be completely removed, and then a corresponding anti-fingerprint film pattern can be formed in the adhesive area B of the cover after the film is removed. In this case, the anti-fingerprint film pattern can be the same as the previously mentioned pattern. When bonding the cover to the entire device, the adhesive is not only unaffected by the anti-fingerprint film, but the pattern also provides more space for the adhesive, resulting in a better fit between the cover and the entire device.

[0038] Specifically, a certain amount of the anti-fingerprint film in area B needs to be removed to ensure that the adhesive force generated by the liquid adhesive can counteract the weight of the cover plate 10 when it is bonded to the whole device. Optionally, at least 66% of the anti-fingerprint film needs to be removed, and the removal of the anti-fingerprint film is not random but must meet certain rules so that the liquid adhesive not only has a larger capacity but also provides adhesive force in multiple directions.

[0039] Optionally, the anti-fingerprint film pattern 11 includes multiple repeating sub-patterns, each sub-pattern including at least two staggered grooves with an included angle of 15°-90° between the two grooves.

[0040] like Figures 3 to 5 As shown, the anti-fingerprint film on the adhesive area B on the display surface is not completely removed, but partially removed to form a certain anti-fingerprint film pattern 11. Alternatively, the anti-fingerprint film on the adhesive area B on the display surface is completely removed, and a corresponding anti-fingerprint film pattern 11 is formed in the adhesive area. In this case, the anti-fingerprint film pattern is directly formed on the cover plate, and it has the same structure as the anti-fingerprint film pattern mentioned above. This pattern is formed by directly engraving the cover plate with a laser. Therefore, the anti-fingerprint film pattern includes at least a recessed part and a raised part. The part removed by the laser is the recessed part, forming a corresponding pattern. The recessed part is used to accommodate the glue and provide storage space for the glue, making the adhesion between the cover plate 10 and the whole machine more secure. At the same time, by setting the anti-fingerprint film pattern in the adhesive area, the appearance difference problem on the surface of the cover plate 10 caused by directly removing the anti-fingerprint film 20 can be reduced, so that after the whole machine product is packaged, the surface of the whole machine product is less likely to have visual differences.

[0041] The formed anti-fingerprint film pattern 11 needs to provide adhesive force in different directions to further increase the tightness of the fit between the cover plate 10 and the whole machine. Optionally, the pattern can provide adhesive force in at least two directions. The anti-fingerprint film pattern formed by laser technology is set with different patterns, generally set as a repeating pattern structure. The design and implementation are relatively simple. The repeating pattern is a sub-pattern. Each sub-pattern is formed with grooves in different directions by laser. The grooves provide adhesive force in different directions when accommodating the adhesive. Optionally, the included angle can be formed from 15° to 90°, for example, the included angle can be set to 15°, 30°, 45°, 60° or 90°, etc.

[0042] Optionally, the sub-patterns set on the pasting area B may not all have the same orientation.

[0043] This embodiment increases the adhesive's capacity in the adhesive area B by forming an anti-fingerprint film pattern on the adhesive area B. The arrangement of the sub-patterns varies depending on the pattern shape. For example, each sub-pattern may have crisscrossing grooves, which are the corresponding pattern lines, providing adhesive force to the adhesive in two perpendicular directions. In this case, the sub-patterns can be arranged in the same direction. Alternatively, if the included angle between the grooves in each sub-pattern is small, requiring additional adhesive force in different directions, the sub-patterns can be arranged in different directions. The specific arrangement method varies depending on the sub-pattern.

[0044] Optionally, the number of sub-patterns set in the pasting area B shall not be less than three.

[0045] In this embodiment, the adhesion between the cover plate 10 and the whole machine is increased by setting an anti-fingerprint film pattern. Optionally, in order to ensure the bonding effect, the anti-fingerprint film pattern set in the adhesive area B needs to be limited. The more sub-patterns set, the better the bonding effect. Therefore, at least 3 sub-patterns should be set to ensure the bonding effect. If the sub-pattern is more complex and has multiple crisscrossing grooves, the corresponding number can be set to be smaller. If the sub-pattern is simpler, more sub-patterns need to be set to ensure sufficient adhesion between the cover plate 10 and the whole machine. Optionally, 3, 4, 5 or even more sub-patterns can be set.

[0046] Optionally, the sub-pattern is wavy, and the wavy sub-pattern is symmetrically arranged on the pasting area B, with the included angle between the two sub-patterns being 120°-150°.

[0047] like Figure 3As shown, this embodiment provides a wavy anti-fingerprint film pattern, which can also be scale-shaped. The patterns on both sides form an axially symmetrical structure and are both tilted. Compared with a single horizontal pattern, the wavy pattern provides more arc paths, which can provide more adhesive storage space and diversify the adhesive angle of the adhesive to the whole machine, thereby further improving the tightness of the adhesion to the whole machine.

[0048] Optionally, the patterns on both sides of the axis of symmetry are tilted at 15°-30°, and the patterns on both sides can form an angle of 120°-150°. For example, the patterns on both sides of the axis of symmetry are tilted at angles of 15°, 30°, or 20°. The spacing and size of the patterns are generally matched with the width of the pasting area B. In order to ensure the bonding effect, at least 6-8 lines are set in the corresponding pasting area B. For example, 6, 8, 10, or 12 or more lines are set in the pasting area. Different densities of patterns are formed according to the laser engraving capabilities. The higher the density of the lines, i.e. the grooves, on the pattern, the better the bonding effect.

[0049] Optionally, the sub-pattern is a square shape, or the sub-pattern includes multiple crisscrossing grooves.

[0050] like Figure 4 As shown, this embodiment provides another type of square-shaped pattern. Each sub-pattern includes multiple grooves connected end to end. Adjacent sub-patterns can also be connected to each other. The lengths of the grooves in each sub-pattern are not exactly the same. Each sub-pattern can provide adhesive force in two different directions. Therefore, the square-shaped pattern can be set to form a regular arrangement and laid flat on the pasting area B, with a simple structure.

[0051] The pattern of this structure can also provide more curved paths, larger glue storage space, and diversified adhesive angles between the glue and the whole machine, further improving the tightness of the bonding between the cover plate 10 and the whole machine. Therefore, it can greatly increase the adhesion of the glue and well meet the bonding requirements of the whole machine. Similar to the above pattern, the spacing and size of the pattern are generally matched with the width of the pasting area B. In order to ensure the bonding effect, at least 3 complete sub-patterns are set in the corresponding pasting area B, for example, 3, 5 or 7 complete sub-patterns are set; different densities of patterns are formed according to different laser engraving capabilities. The higher the density of the lines, i.e., the grooves, on the pattern, the better the bonding effect.

[0052] like Figure 5As shown, this embodiment provides another pattern form, in which each sub-pattern includes crisscrossing grooves, that is, crisscrossing pattern lines. The resulting pattern direction is perpendicular to each other, which can better improve the adhesion of the adhesive in the horizontal and vertical directions. In a limited space, it is easier to improve the bonding effect between the cover plate 10 and the whole machine. This pattern provides more curved paths, has a larger adhesive storage space, and the adhesive force between the adhesive and the whole machine presents a crisscross pattern, resulting in a better bonding effect between the cover plate 10 and the whole machine.

[0053] Each sub-pattern in this structure includes multiple parallel grooves, which are staggered at a certain angle and optionally perpendicular to each other. The spacing and size of the pattern are generally matched with the width of the adhesive area B. To ensure a good fit, at least three complete sub-patterns are set in the corresponding adhesive area B, for example, three, five, or seven complete sub-patterns. Different densities of patterns are formed depending on the laser engraving capability. The higher the density of the lines, i.e., the grooves, on the pattern, the better the fit.

[0054] by Figure 5 Taking the pattern shown as an example, in order to ensure that the area of ​​the anti-fingerprint film in the adhesive area occupies at most 34% of the adhesive area, the groove and protrusion widths formed by the engraved pattern must be at least greater than or equal to 1:1, and optionally set to 1:1 or 2:1, in order to provide sufficient space for the liquid adhesive.

[0055] Based on existing processes, this disclosure uses laser etching on the adhesive area B on the cover plate 10 to partially or completely etch the AF adhesive in the adhesive area B, thereby increasing the adhesion between the cover plate 10 and the whole device. Depending on the actual needs, the touch screen structure is simplified, the cost is reduced, and a touch solution for extremely small screens can be realized, which is especially suitable for wearable touch products. Therefore, the cover plate 10 structure provided in the accompanying drawings of this embodiment adopts a circular example for use in wearable products, such as touch watches. It can also be a square or trapezoidal or other irregularly shaped cover plate structure, for example, for use in electronic products such as mobile phones and game consoles.

[0056] This embodiment also provides a display device, including the cover plate 10 described above.

[0057] like Figure 1As shown, the cover plate 10 provided in the above embodiments is generally placed at the top of the display device for encapsulation. The display device can be any product capable of display, such as mobile phones, computers, wearable devices, etc. Now, a new method for encapsulating the cover plate 10 structure is provided, which is to encapsulate it by upper bonding, that is, bonding the upper surface of the cover plate 10. Compared with the method of encapsulating the lower surface of the cover plate 10, the edge gap of the whole device is reduced, and the problem of drop accident will not occur. It is also conducive to improving the integration of the cover plate 10 with the whole device, improving the aesthetics of the whole device and preventing drop accident.

[0058] The cover plate 10 is used for encapsulation. The display surface of the cover plate 10 is bonded to the whole machine 40. The AF glue 20 on the outside of the cover plate 10 is removed by laser process, and a stepped structure is formed on the surface of the cover plate 10. The liquid glue 30 used when bonding the cover plate 10 fills the stepped surface, so that the liquid glue 30 can better bond with the cover plate 10, and achieve a tight bond between the cover plate 10 and the whole machine 40.

[0059] in, Figure 1 The diagram only shows the cover plate 10 being attached to the main unit 40; in reality, other display modules are located under the cover plate 10, such as... Figure 6 The diagram shown is a top view of the display module. A cover film layer 50 is also attached to the cover plate 10, serving as the topmost protective layer for the entire display device. Figure 7 As shown, the cover plate 10 has the aforementioned stepped structure on the side near the cover plate film layer 50, which allows for more liquid adhesive to be accommodated when the cover plate 10 is bonded to the whole machine. The display panel is divided into display area A, and the area of ​​the cover plate 10 is slightly larger than the area of ​​display area A.

[0060] refer to Figure 7As shown, an optical adhesive layer 53 is provided on the side of the cover plate 10 away from the cover plate film layer 50. A polarizer 54 is also attached to the side of the optical adhesive layer 53 away from the cover plate 10. The display layer 55 is attached to the side of the polarizer 54 away from the buffer layer. In other words, the cover plate 10 and the display layer 55 are structurally bonded together by the optical adhesive layer 53. A buffer layer 57 is attached to the back of the display layer 55. The buffer layer 57 supports and cushions the display layer 55, ensuring that the display layer 55 has a good display effect and is not easily damaged. A flexible circuit board layer 56 is provided on the side of the buffer layer 57 away from the display layer. The flexible circuit board layer 56 is electrically connected to the display layer 55. The portion of the display layer 55 including the driving circuit can be bent towards the non-display side of the display layer 55 to facilitate connection with the flexible circuit board layer 56. A reinforcing steel sheet 52 can also be added to the flexible circuit board layer 56 to locally reinforce the display module, making the flexible circuit board layer 56 more resistant to bending. This display module can be applied to wearable devices, resulting in products such as wristbands with improved performance and drop resistance. It also utilizes weakly magnetic reinforcing steel sheets to minimize electromagnetic interference to the display layer and other circuit structures. Different structures are connected and bonded to the flexible circuit board layer 56 depending on the device. For example, when used as a wearable wristband, an NFC circuit board is typically required. This circuit board can be positioned on the side of the flexible circuit board layer 56 opposite to the display layer 55, electrically connected to the flexible circuit board layer 56, and separated by other structures such as cushioning foam. Other supporting components also need to be installed, which will not be detailed here.

[0061] It should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used above to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention; the directional terms "inner" and "outer" refer to the inside or outside relative to the outline of each component itself. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0062] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, rotated 90 degrees, or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0063] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A cover plate, characterized in that, It includes a display surface and a non-display surface that are opposite to each other. The display surface is divided into a pasting area and a display area, and the pasting area is arranged around the display area. The display area is covered with an anti-fingerprint film, and at least a portion of the adhesive area is not covered with an anti-fingerprint film. The areas without the anti-fingerprint film are filled with liquid adhesive. An anti-fingerprint film pattern is formed in the area where the anti-fingerprint film is not provided in the adhesive area. The area of ​​the anti-fingerprint film in the adhesive area accounts for at most 34% of the area of ​​the adhesive area, and the anti-fingerprint pattern includes at least a recessed portion and a raised portion, wherein the recessed portion is used to accommodate the liquid adhesive. The anti-fingerprint film pattern includes multiple repeating sub-patterns, each sub-pattern including at least two staggered grooves, the included angle between the two grooves being 15°-90°.

2. The cover plate according to claim 1, characterized in that, The anti-fingerprint film on the display surface located in the adhesive area is removed by laser.

3. The cover plate according to claim 1, characterized in that, The ratio of the width of the pasting area to the width of the cover plate is 2.6%-5%.

4. The cover plate according to claim 1, characterized in that, The sub-patterns set on the pasting area are not all in the same direction.

5. The cover plate according to claim 1, characterized in that, The number of sub-patterns set in the pasting area shall not be less than three.

6. The cover plate according to claim 1, characterized in that, The sub-pattern is wavy, and the wavy sub-pattern is symmetrically arranged on the pasting area, with the included angle between the two sub-patterns being 120°-150°.

7. The cover plate according to claim 1, characterized in that, The sub-pattern is a square shape, or the sub-pattern includes multiple crisscrossing grooves.

8. A display device, characterized in that, Includes the cover plate as described in any one of claims 1-7.

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