Display screen and display device

Abstract

The utility model relates to the technical field of display screens, and discloses a display screen and a display device. The display screen comprises a cover plate, an ink layer, an optical adhesive layer and a plastic part. The cover plate comprises an inner surface, and the inner surface is provided with a display area and a frame area surrounding the display area; the ink layer is arranged on the inner surface and located in the frame area. The side, away from the cover plate, of the ink layer is provided with a protruding part and a concave part surrounding the protruding part. The optical adhesive layer is arranged on one side of the cover plate and covers the ink layer and the display area on the inner surface; the plastic part is arranged on the side, away from the cover plate, of the optical adhesive layer. According to the display screen and the display device provided by the invention, the technical problem that a plastic part in the display screen is easy to fall off in the prior art is solved.

Description

Technical Field

[0001] This application relates to the technical field of display screens, and in particular, to a display screen and a display device. Background Art

[0002] Generally, a light-shielding ink is provided on the cover plate of a display screen. An optical adhesive can be used to bond the light-shielding ink and a plastic part to achieve the assembly of the cover plate and the plastic part. In current display screen products, the bonding strength between the light-shielding ink and the optical adhesive is limited, resulting in a low peeling force of the plastic part, and there is a great risk of the plastic part falling off during use and assembly. Summary of the Utility Model

[0003] The purpose of this application is to provide a display screen and a display device, which are used to solve the technical problem that the plastic parts in the display screen are prone to falling off in the related art.

[0004] An embodiment of the first aspect of this application provides a display screen, including a display module. The display screen further includes: a cover plate, the cover plate includes an inner surface, and the inner surface has a display area and a border area surrounding the display area; an ink layer, disposed on the inner surface and located in the border area, and the surface of the ink layer away from the cover plate has protrusions and depressions; an optical adhesive layer, disposed on one side of the cover plate, and the optical adhesive layer covers the ink layer and the display area of the inner surface; a plastic part, disposed on the side of the optical adhesive layer away from the cover plate.

[0005] In some embodiments, the protrusions include one or more of a circular bump, a triangular bump, a square bump, and a diamond bump.

[0006] In some embodiments, the protrusions include a plurality of diamond bumps, and the plurality of diamond bumps are arranged in an array, and the gaps between adjacent diamond bumps form depressions.

[0007] In some embodiments, the distance between adjacent diamond bumps is 0.15 mm - 0.2 mm.

[0008] In some embodiments, the depth of the depression in the first direction is 0.5 mm - 2 mm, and the first direction is the thickness direction of the ink layer.

[0009] In some embodiments, the length of the diamond bump in the second direction is 0.8 mm - 1.2 mm, and / or the length of the diamond bump in the third direction is 0.8 mm - 1.2 mm. The second direction is perpendicular to the third direction, and both the second direction and the third direction are perpendicular to the thickness direction of the cover plate.

[0010] In some embodiments, the ink layer includes an adhesion area and an edge area surrounding the adhesion area. The protrusions and depressions are located in the adhesion area, and the projection of the plastic part on the ink layer falls within the adhesion area.

[0011] In some embodiments, the ink layer includes a bottom ink layer and a top ink layer. The bottom ink layer is disposed on the inner surface, and the top ink layer is disposed on a side of the bottom ink layer away from the cover plate. The convex portions and the concave portions are located within the top ink layer.

[0012] In some embodiments, the thickness of the ink layer is 5 μm - 15 μm, and / or the thickness by which the optical adhesive layer protrudes above the ink layer is 0.2 mm - 0.7 mm.

[0013] The display screen provided by the embodiments of the present application includes a cover plate, an ink layer, an optical adhesive layer, and a plastic part. Among them, the ink layer is disposed in the border area of the cover plate. A side of the ink layer away from the cover plate has convex portions and concave portions. The optical adhesive layer covers the ink layer and the display area on the inner surface of the cover plate, and the optical adhesive layer can fill the concave portions within the ink layer. In this way, by designing the surface of the ink layer to be uneven, the surface area of the contact interface between the ink layer and the optical adhesive layer can be increased, and the mechanical bite between the ink layer and the optical adhesive layer can be increased to form a mechanical interlocking effect, so that the bonding strength between the ink layer and the optical adhesive layer is improved. As a result, the plastic part can be firmly bonded to the cover plate. This design improves the peeling force of the plastic part and reduces the risk of detachment during the use or assembly of the plastic part.

[0014] An embodiment of the second aspect of the present application provides a display device including the display screen in the first aspect.

[0015] The display device provided by the embodiments of the present application improves the interlayer structure of the display screen. Specifically, by designing the surface of the ink layer on the cover plate to be uneven, the surface area of the contact interface between the ink layer and the optical adhesive layer can be increased, and the mechanical bite between the ink layer and the optical adhesive layer can be increased to form a mechanical interlocking effect. This design effectively improves the peeling force of the plastic part, reduces the risk of detachment during the use or assembly of the plastic part, and thus improves the product quality of the display screen and related display devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only 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.

[0017] Figure 1 It is a schematic structural diagram of the cover plate in the display screen provided by the embodiments of the present application;

[0018] Figure 2 It is a schematic diagram of the interlayer structure of the display screen provided by the embodiments of the present application;

[0019] Figure 3 This is a schematic diagram of a partial structure of an ink layer provided by an embodiment of the present application.

[0020] Description of main component symbols:

[0021] 100, display screen;

[0022] 1, cover plate; 11, display area; 12, border area; 2, ink layer; 21, bottom ink; 22, top ink; 23, protrusion; 24, depression; 25, bonding area; 26, edge area; 3, optical adhesive layer; 4, plastic part. Specific embodiments

[0023] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly or indirectly disposed on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component. The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the patent. Terms "first" and "second" are only used for the purpose of convenient description, and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of technical features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0025] Referring to "one embodiment", "some embodiments" or "embodiments" described in the specification of the present application means that specific features, structures or characteristics described in combination with the embodiment are included in one or more embodiments of the present application. Thus, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. In addition, in one or more embodiments, specific features, structures or characteristics can be combined in any suitable manner.

[0026] In the first aspect, please refer to Figure 1 and Figure 2, an embodiment of the present application provides a display screen 100, including a cover plate 1, an ink layer 2, an optical adhesive layer 3, and a plastic part 4. The cover plate 1 includes an inner surface, and the inner surface has a display area 11 and a border area 12 surrounding the display area 11. The ink layer 2 is disposed on the inner surface and located in the border area 12. The surface of the ink layer 2 away from the cover plate 1 has a convex portion 23 and a concave portion 24. The optical adhesive layer 3 is disposed on one side of the cover plate 1, and the optical adhesive layer 3 covers the ink layer 2 and the display area 11 of the inner surface. The plastic part 4 is disposed on the side of the optical adhesive layer 3 away from the cover plate 1.

[0027] Please refer to Figure 2 , define the thickness direction of the cover plate 1 as the first direction X, please refer to Figure 1 , define the length direction of the cover plate 1 as the second direction Y, and define the width direction of the cover plate 1 as the third direction Z.

[0028] The cover plate 1 is the outer protective structure of the display screen 100, and is used to provide necessary physical protection for the internal components of the display screen 100. The cover plate 1 is generally made of a transparent material with high hardness, scratch resistance, and impact resistance. Optionally, the cover plate 1 can be a glass substrate, a substrate made of organic materials, a metal substrate, or a composite substrate made of multiple materials. The cover plate 1 has opposite inner and outer surfaces, and the inner surface can be divided into a display area 11 and a border area 12, where the display area 11 is used to display images and content, and the display area 11 is directly opposite to the display area of the display module (not shown) of the display screen 100. The border area 12 is also the edge area of the cover plate 1, and is used to connect structures such as the frame and the backplane of the display screen 100. It can be understood that the structure of the border area 12 depends on the structure of the cover plate 1 and the shape of the display area 11.

[0029] The ink layer 2 has good light-shielding performance and sealing performance, and is used to reduce screen light leakage and prevent moisture, dust, or other pollutants from entering. Alternatively, the ink layer 2 can also be used to print specific circuit patterns or arrange electronic devices. On the side of the ink layer 2 away from the cover plate 1, the convex portion 23 and the concave portion 24 form a concavo-convex structure and are combined into a regular grid structure or an irregular texture, where the concave portion 24 is formed between the convex portions 23, and can also be understood as a groove. When manufacturing the ink layer 2, the convex portion 23 and the concave portion 24 can be processed by screen printing, photolithography, or other methods.

[0030] The optical adhesive layer 3 is a double-sided adhesive film, and is used to connect the cover plate 1 and the plastic part 4 so that the two are firmly combined together. The thickness of the optical adhesive layer 3 is greater than the thickness of the ink layer 2. The optical adhesive layer 3 partially fills the surface of the display area 11 surrounded by the ink layer 2 and partially covers the surface of the ink layer 2. It can be understood that the optical adhesive usually has a certain fluidity in the initial state, so that the optical adhesive can cover the surface of the convex portion 23 and can also fill the concave portion 24.

[0031] The plastic part 4 can be the frame or the backplane of the display screen 100, but is not limited thereto. The plastic part 4 is generally used to provide physical support for the display screen 100, or to play a role in fixing and encapsulating. The plastic part 4 is disposed in fit with the optical adhesive layer 3, and under the action of the optical adhesive layer 3, the plastic part 4 and the cover plate 1 can form a stable connection.

[0032] It can be understood that the display screen 100 further includes structures such as a display module and a housing.

[0033] It should be noted that Figure 1 only a partial structure of the display screen 100 provided by the embodiment of the present application is schematically shown, aiming to clearly illustrate the design concept of the present application, rather than being used to limit the specific structure of the display screen 100. For example Figure 2 the shown drawings are used to illustrate the interlayer layout of the cover plate 1, the ink layer 2, the optical adhesive layer 3, and the plastic part 4, Figure 3 the shown drawings are used to illustrate the specific structure of the convex portion 23 and the concave portion 24 on the ink layer 2.

[0034] The display screen 100 provided by the embodiment of the present application includes a cover plate 1, an ink layer 2, an optical adhesive layer 3, and a plastic part 4. Among them, the ink layer 2 is disposed in the border area 12 of the cover plate 1. The side of the ink layer 2 away from the cover plate 1 has a convex portion 23 and a concave portion 24. The optical adhesive layer 3 covers the ink layer 2 and the display area 11 on the inner surface of the cover plate 1, and the optical adhesive layer 3 can fill the concave portion 24 in the ink layer 2. In this way, by designing the surface of the ink layer 2 to be uneven, the surface area of the contact interface between the ink layer 2 and the optical adhesive layer 3 can be increased, and the mechanical bite between the ink layer 2 and the optical adhesive layer 3 can be increased to form a mechanical interlocking effect, so that the bonding strength between the ink layer 2 and the optical adhesive layer 3 is improved. Thus, the plastic part 4 can be firmly bonded to the cover plate 1, and this design improves the peeling force of the plastic part 4 and reduces the risk of detachment during the use or assembly of the plastic part 4.

[0035] In addition, the concave portion 24 can form a tiny channel, so that the concave portion 24 can be used to discharge the bubbles generated during the lamination process of the display screen 100. By reducing the aggregation of bubbles in the display screen 100, the bonding effect between the optical adhesive layer 3 and the cover plate 1 can be further improved.

[0036] In some embodiments, the convex portion 23 includes one or more of a circular bump, a triangular bump, a square bump, and a diamond bump.

[0037] Optionally, the convex portion 23 can include a plurality of bumps with the same shape and the same size. The plurality of bumps are arranged in an array to form a regular grid structure. The adjacent bumps are spaced apart to form the concave portion 24.

[0038] With the above design, it is beneficial to improve the uniformity of the optical glue distribution, enabling the ink layer 2 and the optical glue layer 3 to form a tight connection at each position, with higher stability and reliability.

[0039] Optionally, the protrusion 23 may further include a plurality of bumps with the same or different shapes and the same or different sizes. The plurality of bumps may be arranged in an array to form a regular grid structure, or the plurality of bumps may be randomly distributed to form an irregular texture structure.

[0040] The above design aims to provide an alternative to the ink layer 2, and the structures of the protrusion 23 and the recess 24 are not uniquely defined. In some cases, the above design can reduce the manufacturing difficulty of the ink layer 2 and improve the manufacturing efficiency of the display screen 100.

[0041] It can be understood that the protrusion 23 can also be designed into other irregular shapes.

[0042] In some embodiments, please refer to Figure 2 and Figure 3 , the protrusion 23 includes a plurality of diamond-shaped bumps, the plurality of diamond-shaped bumps are arranged in an array, and the gaps between adjacent diamond-shaped bumps form the recess 24.

[0043] The array distribution means that a plurality of diamond-shaped bumps are arranged at specific intervals and angles.

[0044] On the one hand, the four sides of the diamond-shaped bump are of equal length and the opposite angles are equal, with high symmetry and being easy to arrange into a regular grid structure; on the other hand, the diamond-shaped bump has a high space utilization rate and can provide more contact edges, thus being beneficial to improving the bonding strength between the ink layer 2 and the optical glue layer 3.

[0045] In some embodiments, please refer to Figure 2 and Figure 3 , the protrusion 23 includes a plurality of diamond-shaped bumps, and the distance L1 between adjacent diamond-shaped bumps is 0.15 mm - 0.2 mm. For example, the distance L1 between adjacent diamond-shaped bumps can be 0.15 mm, 0.18 mm, or 0.2 mm.

[0046] If the diamond-shaped bumps are arranged too densely, it will lead to an increase in the manufacturing difficulty of the ink layer 2 and may cause the optical glue to be difficult to fully fill; if the diamond-shaped bumps are arranged too sparsely, the bonding strength between the optical glue layer 3 and the ink layer 2 cannot be guaranteed.

[0047] In the above design, the diamond-shaped bumps are reasonably arranged, which can provide more contact points for the ink layer 2 and the optical adhesive layer 3, thereby enhancing the bonding force between the two, and the gap between adjacent diamond-shaped bumps is reasonable, so that the optical adhesive can be smoothly filled into the recess 24 to form a tight bonding structure, so that the optical adhesive layer 3 and the ink layer 2 can achieve stable and reliable mechanical interlocking.

[0048] In some embodiments, please refer to Figure 2 , the depth L2 of the recess 24 in the first direction X is 0.5 mm - 2 mm, and the first direction X is the thickness direction of the ink layer 2. By way of example, the depth L2 of the recess 24 can be 0.5 mm, 1 mm, 1.5 mm, 2 mm.

[0049] The recess 24 is also a groove formed on the surface of the ink layer 2, and the depth of the recess 24 can be understood as the depth of the groove.

[0050] If the depth of the recess 24 is too shallow, the space for filling the adhesive is limited and the optical adhesive cannot be fully filled; if the depth of the recess 24 is too deep, the overall thickness of the ink layer 2 must be increased synchronously, which will consume more ink.

[0051] In the above design, the depth of the recess 24 is reasonably designed, which can provide enough space for filling the adhesive, ensuring the bonding effect between the optical adhesive layer 3 and the ink layer 2, and the above design also takes into account the design requirements of the ink layer 2, avoiding the problem of the ink layer 2 being too thick.

[0052] In some embodiments, please refer to Figure 3 , the protrusion 23 includes a plurality of diamond-shaped bumps, the length L3 of the diamond-shaped bumps in the second direction Y is 0.8 mm - 1.2 mm, and / or the length L4 of the diamond-shaped bumps in the third direction Z is 0.8 mm - 1.2 mm. The second direction Y is perpendicular to the third direction Z, and both the second direction Y and the third direction Z are perpendicular to the thickness direction of the cover plate 1. By way of example, the length L3 of the diamond-shaped bumps in the second direction Y can be 0.8 mm, 1 mm, 1.2 mm; the length L4 of the diamond-shaped bumps in the third direction Z can be 0.8 mm, 1 mm, 1.2 mm.

[0053] Optionally, in a specific embodiment, the length L3 of the diamond-shaped bumps in the second direction Y is 1 mm, and the length L4 of the diamond-shaped bumps in the third direction Z is 1 mm.

[0054] Due to the limited space on the surface of the cover plate 1, if the size of the diamond-shaped bumps is too large, the space of the recess 24 will be squeezed, resulting in too low a proportion of the recess 24, affecting the amount of adhesive filled in the ink layer 2, and thus affecting the bonding effect between the ink layer 2 and the optical adhesive layer 3; if the size of the diamond-shaped bumps is too small, the supporting effect of the protrusion 23 and the overall strength of the ink layer 2 will be affected.

[0055] In the above design, the size of the diamond-shaped bumps is reasonable. On the one hand, the contact area between the diamond-shaped bumps and the optical adhesive layer 3 is relatively large, which can better disperse the interlayer stress, thus being beneficial to improving the structural stability and compressive resistance between the ink layer 2 and the optical adhesive layer 3. On the other hand, the space ratio between the diamond-shaped bumps and the recessed part 24 is reasonable, which is beneficial to further improving the filling amount and filling effect of the recessed part 24, thereby enhancing the bonding strength between the ink layer 2 and the optical adhesive layer 3.

[0056] In some embodiments, please refer to Figure 2 and Figure 3 , the ink layer 2 includes an adhesive area 25 and a peripheral area 26 surrounding the adhesive area 25. The raised parts 23 and the recessed part 24 are located in the adhesive area 25, and the projection of the plastic part 4 on the ink layer 2 falls within the adhesive area 25.

[0057] As Figure 3 shown, the surface of the ink layer 2 in the peripheral area 26 is flat, while the surface of the ink layer 2 in the adhesive area 25 is uneven and forms a microgroove structure. It can be understood that in the first direction X, the height of the ink layer 2 in the peripheral area 26 is the same as the height of the raised parts 23 in the ink layer 2 in the adhesive area 25.

[0058] In some cases, the plastic part 4 is a flat structure or a frame structure, and the projection of the outer edge of the plastic part 4 on the cover plate 1 does not exceed the border area 12. It can also be understood that the size of the plastic part 4 is relatively small. In this way, when the plastic part 4 is assembled with the cover plate 1, the plastic part 4 actually only corresponds to the ink layer 2 in the adhesive area 25. That is to say, only the ink layer 2 in the adhesive area 25 plays the bonding role.

[0059] In the above design, only the ink layer 2 in the adhesive area 25 is improved, which can specifically improve the peeling force of the plastic part 4, while the ink layer 2 in other positions is structurally intact, which helps to improve the overall sealing performance and light shielding performance of the ink layer 2.

[0060] It can be understood that in some other embodiments, on the premise of ensuring the sealing performance and light shielding performance of the ink layer 2, the coverage range of the raised parts 23 and the recessed part 24 can be expanded to provide a certain tolerance space for the plastic part 4, and the specific design can be carried out according to the actual situation.

[0061] In some embodiments, please refer to Figure 2 , the ink layer 2 includes a bottom ink layer 21 and a top ink layer 22. The bottom ink layer 21 is disposed on the inner surface, and the top ink layer 22 is disposed on the side of the bottom ink layer 21 away from the cover plate 1. The raised parts 23 and the recessed part 24 are located in the top ink layer 22. Among them, the recessed part 24 can be a through slot penetrating the top ink layer 22 or a blind slot opened in the top ink layer 22.

[0062] The bottom ink layer 21 is directly fabricated on the inner surface of the cover plate 1 by means such as spraying, photolithography, coating, etc. The bottom ink layer 21 is generally used to define the shape of the product and provide necessary light-shielding or conductive functions. After the bottom ink layer 21 is dried and formed, the top ink layer 22 is fabricated on the surface of the bottom ink layer 21 by means such as screen printing. The top ink layer 22 is generally used to enhance the light-shielding effect, improve electrostatic protection, and can also be used to form specific patterns or functional layers.

[0063] In the above design, by designing the protruding portion 23 and the recessed portion 24 within the top ink layer 22, the manufacturing difficulty of the ink layer 2 can be reduced, and with the design of the bottom ink layer 21, it can be ensured that the overall ink layer 2 has good sealing performance and light-shielding performance.

[0064] It can be understood that in some embodiments, the ink layer 2 can also be designed as a single-layer structure, and the required protruding portion 23 and recessed portion 24 are processed on the surface of the ink layer 2 away from the cover plate 1 by means such as photolithography or mechanical grooving.

[0065] In some embodiments, the thickness of the ink layer 2 is 5μm - 15μm. For example, the thickness of the ink layer 2 can be 5μm, 10μm, 15μm.

[0066] If the thickness of the ink layer 2 is too small, its own sealing performance and light-shielding performance will be affected, and it will also impose restrictions on the design of the recessed portion 24; if the thickness of the ink layer 2 is too large, excessive ink will be consumed, resulting in increased costs.

[0067] In the above design, the thickness of the ink layer 2 is reasonable, and the ink layer 2 has good performance. When designing the recessed portion 24 on the ink layer 2, there are more choices, making the structural design of the recessed portion 24 more flexible.

[0068] In some embodiments, the thickness by which the optical adhesive layer 3 protrudes above the ink layer 2 is 0.2mm - 0.7mm. For example, the thickness by which the optical adhesive layer 3 protrudes above the ink layer 2 can be 0.2mm, 0.5mm, 0.7mm.

[0069] The optical adhesive layer 3 includes a portion covering the display area 11 of the cover plate 1 and a portion covering the surface of the ink layer 2. The thickness by which the optical adhesive layer 3 protrudes above the ink layer 2 can be understood as the thickness of the optical adhesive layer 3 covering the surface of the ink layer 2.

[0070] If the thickness of the optical adhesive layer 3 is too small, the bonding effect between the optical adhesive layer 3 and the ink layer 2 will be affected; if the thickness of the optical adhesive layer 3 is too large, more optical adhesive needs to be provided, increasing the manufacturing cost.

[0071] In the above design, the thickness of the optical adhesive layer 3 is reasonable, ensuring that there is enough optical adhesive to fill the recess 24, thereby providing sufficient adhesive force. Moreover, since the thickness of the optical adhesive layer 3 protruding above the ink layer 2 is reasonable, it is conducive to keeping the surface of the optical adhesive layer 3 flat, thereby ensuring the bonding effect between the optical adhesive layer 3, the plastic part 4, and the display module.

[0072] An embodiment of the present application provides a display screen 100. By improving the structure of the ink layer 2 on the cover plate 1, an uneven microgroove structure is formed at the contact interface between the ink layer 2 and the optical adhesive layer 3, which can increase the surface area of the contact interface between the ink layer 2 and the optical adhesive layer 3, and enable the ink layer 2 and the optical adhesive layer 3 to form a mechanical interlocking effect, thereby enhancing the bonding strength between the ink layer 2 and the optical adhesive layer 3. As a result, the plastic part 4 can be stably bonded to the cover plate 1. This design improves the peeling force of the plastic part 4 and reduces the risk of detachment during the use or assembly of the plastic part 4. Further, some experiments show that compared with the design where the surface of the ink layer 2 is smooth and flat, the peeling force of the plastic part 4 can be increased from 49 N to 98 N.

[0073] In a second aspect, an embodiment of the present application provides a display device, including the display screen 100 in the first aspect.

[0074] The specific structure of the display screen 100 can refer to the description in the first aspect and will not be elaborated here.

[0075] The display device provided by the embodiment of the present application improves the interlayer structure of the display screen 100. Specifically, by designing the surface of the ink layer 2 on the cover plate 1 to be uneven, the surface area of the contact interface between the ink layer 2 and the optical adhesive layer 3 can be increased, and the mechanical bite between the ink layer 2 and the optical adhesive layer 3 can be increased to form a mechanical interlocking effect. This design effectively improves the peeling force of the plastic part 4, reduces the risk of detachment during the use or assembly of the plastic part 4, and thus improves the product quality of the display screen 100 and related display devices.

[0076] The above embodiments are only used to illustrate the technical solutions of the present application, rather than 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 recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A display screen, comprising a display module, characterized in that, The display screen further includes: a cover plate, the cover plate includes an inner surface, and the inner surface has a display area and a border area surrounding the display area; an ink layer, disposed on the inner surface and located in the border area, and the surface of the ink layer away from the cover plate has protrusions and depressions; an optical adhesive layer, disposed on one side of the cover plate, and the optical adhesive layer covers the ink layer and the display area of the inner surface; a plastic part, disposed on the side of the optical adhesive layer away from the cover plate.

2. The display screen according to claim 1, wherein, The protrusions include one or more of a circular bump, a triangular bump, a square bump, and a diamond bump.

3. The display screen according to claim 1, wherein, The protrusions include a plurality of diamond bumps, and the plurality of diamond bumps are arranged in an array, and the gaps between adjacent diamond bumps form the depressions.

4. The display screen according to claim 3, wherein The distance between adjacent diamond bumps is 0.15 mm - 0.2 mm.

5. The display screen according to claim 3, characterized in that, The depth of the depression in the first direction is 0.5 mm - 2 mm, and the first direction is the thickness direction of the ink layer.

6. The display screen according to claim 3, characterized in that The length of the diamond bump in the second direction is 0.8 mm - 1.2 mm, and / or the length of the diamond bump in the third direction is 0.8 mm - 1.2 mm, the second direction is perpendicular to the third direction, and both the second direction and the third direction are perpendicular to the thickness direction of the cover plate.

7. The display screen according to any one of claims 1-6, characterized in that, The ink layer includes an adhesion area and an edge area surrounding the adhesion area, the protrusions and the depressions are located in the adhesion area, and the projection of the plastic part on the ink layer falls within the adhesion area.

8. The display screen according to any one of claims 1-6, characterized in that, The ink layer includes a bottom ink and a top ink, the bottom ink is disposed on the inner surface, the top ink is disposed on the side of the bottom ink away from the cover plate, and the protrusions and the depressions are located in the top ink.

9. The display screen according to any one of claims 1-6, characterized in that, The thickness of the ink layer is 5 μm - 15 μm, and / or the thickness by which the optical adhesive layer protrudes above the ink layer is 0.2 mm - 0.7 mm.

10. A display device, characterized in that, A display screen according to any one of claims 1 - 9.

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