Flexible cover plate, display screen, manufacturing method thereof, and display device having thereof

Abstract

This application discloses a flexible cover plate, a display screen, a method for manufacturing the same, and a display device having the same. The flexible cover plate includes: a first flexible material layer having a first surface; a light-blocking layer located on one side of the first flexible material layer having the first surface; a second flexible material layer located on the side of the light-blocking layer facing away from the first surface, with the side of the second flexible material layer facing away from the light-blocking layer being the second surface; a first adhesive layer located on one side of the first surface of the first flexible material layer, with the side of the first adhesive layer facing away from the first flexible material layer being the third surface; and a first protective layer covering the second and third surfaces. Because the first protective layer simultaneously covers both the second flexible material layer and the first adhesive layer, when removing the first protective layer, the second flexible material layer allows for the removal of residual adhesive on the surface of the light-blocking layer after peeling, thus preventing contamination of the camera aperture area when applied to a display device and reducing the risk of cracking at the edges of the light-blocking layer.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically, to a flexible cover plate, a display screen, a method for manufacturing the same, and a display device having the same. Background Technology

[0002] Currently, in foldable flexible cover plates used in displays, a light-blocking layer is typically applied to the surface of the flexible substrate to block external light from entering the display panel through the cover plate. This light-blocking layer can be made of cured ink. Before the flexible cover plate is bonded to the display panel with optical adhesive, a single layer of adhesive is used to bond a protective film to the surface of the light-blocking layer. When bonding the flexible cover plate to the display panel, the protective film needs to be removed. However, the removed protective film leaves adhesive residue on the surfaces of the flexible substrate and the light-blocking layer. This adhesive residue can easily affect the adhesion between the flexible substrate and the optical adhesive, as well as the light-blocking effect of the light-blocking layer. Furthermore, after the display is applied to the display device, the adhesive residue can easily contaminate the camera aperture area. Summary of the Invention

[0003] This application provides a flexible cover plate, a method for manufacturing a display screen, and a display device having the same, to solve the problem of residual adhesive on the surface of the light-blocking structure after the film is peeled off due to the contact between the light-blocking structure and the protective film in the related art.

[0004] According to one aspect of this application, a flexible cover plate is provided, comprising: a first flexible material layer having a first surface; a light-blocking layer located on one side of the first flexible material layer having the first surface, wherein the projection of the light-blocking layer on the first surface is located in a portion of the first surface; a second flexible material layer located on the side of the light-blocking layer opposite to the first surface, wherein the side of the second flexible material layer opposite to the light-blocking layer is the second surface; a first adhesive layer located on one side of the first surface of the first flexible material layer, wherein the projection of the first adhesive layer on the first surface is located in another portion of the first surface, wherein the side of the first adhesive layer opposite to the first flexible material layer is the third surface, and it is understood that the third surface and the second surface are located on the same surface; and a first protective layer covering the second surface and the third surface, wherein the first adhesive layer can connect the first flexible material layer and the first protective layer, and when the first protective layer is removed, the second flexible material layer can pass through, avoiding residual adhesive on the surface of the light-blocking layer after the film is peeled off.

[0005] According to another aspect of this application, a method for manufacturing a display screen is provided, comprising the following steps:

[0006] To obtain the cover plate body, the first protective layer, the second flexible material layer, and the first adhesive layer of the aforementioned flexible cover plate need to be removed. The cover plate body is then attached to the display panel so that the light-blocking layer in the cover plate body is located on the side of the first flexible material layer closer to the display panel. Using the aforementioned flexible cover plate can avoid the phenomenon of residual adhesive on the surface of the light-blocking layer after the film is peeled off. Furthermore, during the process of attaching the flexible cover plate to the display panel with adhesive, the influence of residual adhesive foreign matter on the adhesion between the cover plate and the adhesive, as well as the optical, electrical, and other physical properties of the light-blocking layer, is avoided. It also avoids contamination of the camera hole area when applied to a display device and reduces the risk of cracking at the edge of the light-blocking layer.

[0007] According to another aspect of this application, a display screen is also provided, which is prepared by the above-described display screen manufacturing method.

[0008] According to another aspect of this application, a display device is also provided, including a display screen as described above.

[0009] In the flexible cover plate provided in this application embodiment, a first flexible material layer has a first surface, a light-blocking layer is located on one side of the first flexible material layer having the first surface, and the projection of the light-blocking layer on the first surface is located in a portion of the first surface; a second flexible material layer is located on the side of the light-blocking layer facing away from the first surface, and the side of the second flexible material layer facing away from the light-blocking layer is the second surface; a first adhesive layer is located on one side of the first surface of the first flexible material layer, the projection of the first adhesive layer on the first surface is located in another portion of the first surface, and the side of the first adhesive layer facing away from the first flexible material layer is the third surface; a first protective layer covers the second surface. The first protective layer and the first flexible material layer are connected by the first adhesive layer. Since the first protective layer covers both the second flexible material layer and the first adhesive layer, when the first protective layer is removed, the second flexible material layer can be used to avoid residual adhesive on the surface of the light-blocking layer after the film is peeled off. In the process of bonding the flexible cover plate to the display panel with adhesive, the influence of residual adhesive on the adhesion between the cover plate and the adhesive, as well as the optical, electrical and other physical properties of the light-blocking layer, is avoided. At the same time, it also avoids contamination of the camera hole area when applied to the display device, and reduces the risk of cracking at the edge of the light-blocking layer. Attached Figure Description

[0010] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0011] Figure 1 This is a partial cross-sectional structural diagram of a flexible cover plate according to an embodiment of this application;

[0012] Figure 2A partial cross-sectional structural diagram of another flexible cover plate provided in an embodiment of this application is shown;

[0013] Figure 3 A partial cross-sectional structural diagram of another flexible cover plate provided in an embodiment of this application is shown;

[0014] Figure 4 A cross-sectional structural schematic diagram of a flexible cover plate provided in an embodiment of this application is shown;

[0015] Figure 5 This illustration shows a flowchart of a method for manufacturing a display screen using a flexible cover plate according to an embodiment of this application;

[0016] Figure 6 This illustration shows a partial cross-sectional view of a display screen with a flexible cover provided in an embodiment of this application;

[0017] Figure 7 A cross-sectional schematic diagram of a display screen with a flexible cover plate provided in an embodiment of this application is shown;

[0018] Figure 8 This is a schematic diagram of a display device provided in an embodiment of this application.

[0019] The above figures include the following reference numerals:

[0020] 10. First flexible material layer; 20. Light blocking layer; 30. Second flexible material layer; 40. First adhesive layer; 50. First protective layer; 60. Second adhesive layer; 70. Second protective layer; 80. First protrusion; 90. Second protrusion; 100. Third flexible material layer; 110. Third adhesive layer; 120. Display device; 130. Display panel; 140. Optical adhesive layer. Detailed Implementation

[0021] 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.

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0024] According to an embodiment of this application, a flexible cover plate, such as Figures 1 to 3 As shown, it includes: a first flexible material layer 10, a light-blocking layer 20, a second flexible material layer 30, a first adhesive layer 40, and a first protective layer 50, wherein the first flexible material layer 10 has a first surface; the light-blocking layer 20 is located on the side of the first flexible material layer 10 with the first surface, and the projection of the light-blocking layer 20 on the first surface is located in a portion of the first surface; the second flexible material layer 30 is located on the side of the light-blocking layer 20 away from the first surface, and the side of the second flexible material layer 30 away from the light-blocking layer 20 is the second surface; the first adhesive layer 40 is located on the side of the first surface of the first flexible material layer 10, and the projection of the first adhesive layer 40 on the first surface is located in another portion of the first surface, and the side of the first adhesive layer 40 away from the first flexible material layer 10 is the third surface; the first protective layer 50 covers the second surface and the third surface.

[0025] In the above embodiments, the first flexible material layer 10 has a first surface, the light-blocking layer 20 is located on the side of the first flexible material layer 10 with the first surface, and the projection of the light-blocking layer 20 on the first surface is located in a portion of the first surface; the second flexible material layer 30 is located on the side of the light-blocking layer 20 away from the first surface, and the surface of the second flexible material layer 30 away from the light-blocking layer 20 is the second surface; the first adhesive layer 40 is located on one side of the first surface of the first flexible material layer 10, the projection of the first adhesive layer 40 on the first surface is located in another portion of the first surface, and the surface of the first adhesive layer 40 away from the first flexible material layer 10 is the third surface; the first protective layer 50 covers the second surface and the third surface; the first adhesive layer 40 can connect the first flexible material layer 10 and the first protective layer 50. Layer 50, since the flexible cover also includes a second flexible material layer 30, located on the side of the light-blocking layer 20 away from the first surface, and the side of the second flexible material layer 30 away from the light-blocking layer has a second surface, and the first protective layer 50 simultaneously covers the second flexible material layer 30 and the first adhesive layer 40, so that when the first protective layer 50 is removed, the second flexible material layer 30 can be used to avoid the phenomenon of residual adhesive on the surface of the light-blocking layer 20 after the film is peeled off. In the process of bonding the flexible cover to the display panel with adhesive, the influence of residual adhesive foreign matter on the adhesion of the cover and adhesive and the optical, electrical and other physical properties of the light-blocking layer 20 is avoided. At the same time, it also avoids the contamination of the camera hole area when applied to the display device, and reduces the risk of cracking at the edge of the light-blocking layer 20.

[0026] The above is the core idea of ​​this application. The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] In the flexible cover plate of this application embodiment, Figure 1 The image shows a partial cross-sectional structure of a flexible cover plate, such as... Figure 1 As shown, the light-blocking layer 20 is located on one side of the first surface of the first flexible material layer 10, the second flexible material layer 30 is located on the side of the light-blocking layer 20 away from the first flexible material layer 10, and the first adhesive layer 40 is located on the other side of the first surface of the first flexible material layer 10. It should be noted that the first adhesive layer 40 is in contact with the light-blocking layer 20 and also in contact with the second flexible material layer 30. The first protective layer 50 is located on the side of the first adhesive layer 40 and the second flexible material layer 30 away from the first flexible material layer 10, and is in contact with both the first adhesive layer 40 and the second flexible material layer 30.

[0028] In some alternative embodiments, the material of the first flexible material layer 10 includes transparent polyimide.

[0029] In the above optional embodiments, transparent polyimide can be used as an insulating and protective material, with good high heat resistance and low thermal expansion characteristics, and can be used to make foldable products.

[0030] In the above optional embodiments, the light-blocking layer 20 can be an ink cured on the surface of the first flexible material layer 10, which will not be removed in the subsequent process of removing the first protective layer 50 and the first adhesive layer 40, thus enabling its application in the display screen; the material of the light-blocking layer 20 can be selected from one of the following: petroleum-based ink, vegetable oil-based ink, water-based ink, and ultraviolet-cured ink. Those skilled in the art can reasonably select the material of the light-blocking layer according to the actual situation, and this application does not make specific limitations.

[0031] In the above optional embodiments, the second flexible material layer 30 will block the light-blocking layer 20 from contacting the first protective layer 50, thereby playing a role in antistatic and pollution prevention. The second flexible material layer 30 can be any one of industrial rubber sheet, asbestos rubber sheet, polytetrafluoroethylene, asbestos resin sheet and impregnated asbestos gasket. Those skilled in the art can reasonably select the material of the second flexible material layer according to the actual situation, and this application does not make specific limitations.

[0032] In some alternative implementations, such as Figure 1 As shown, the sum of the projected areas of the light-blocking layer 20 and the first adhesive layer 40 on the first surface of the first flexible material layer 10 is equal to the area of ​​the first surface.

[0033] In the above optional implementations, such as Figure 1 As shown, the light-blocking layer 20 and the first adhesive layer 40 are both located on the first surface of the first flexible material layer 10, and the sum of the projected areas of the light-blocking layer 20 and the first adhesive layer 40 on the first surface is equal to the area of ​​the first surface. It can be understood that the light-blocking layer 20 and the first adhesive layer 40 just completely cover the first surface, so that the area on the first surface of the first flexible material layer 10 not covered by the light-blocking layer 20 can contact the first adhesive layer 40 to the maximum extent, which can better protect the first flexible material layer 10 and also improve the adhesion between the first adhesive layer 40 and the first flexible material layer 10.

[0034] In some alternative implementations, such as Figure 1 As shown, the second surface of the second flexible material layer 30 is coplanar with the third surface of the first adhesive layer 40.

[0035] In the above optional implementations, such as Figure 1As shown, the side surface of the first adhesive layer 40 away from the first surface of the first flexible material layer 10 is the third surface, and the side surface of the second flexible material layer 30 away from the first surface is the second surface. The second surface and the third surface are coplanar, so that there are almost no gaps or unevenness between the second surface and the third surface, which is conducive to the adhesion of the first protective layer 50 to the second surface and the third surface.

[0036] In some alternative implementations, such as Figure 1 As shown, the projections of the light-blocking layer 20 and the second flexible material layer 30 on the first surface of the first flexible material layer 10 completely overlap.

[0037] In the above optional implementations, such as Figure 1 As shown, the second flexible material layer 30 is located on the side of the light-blocking layer 20 away from the first flexible material layer 10. The projections of the second flexible material layer 30 and the light-blocking layer 20 on the first flexible material layer 10 completely overlap, that is, the surface area of ​​the second flexible material layer 30 in contact with the light-blocking layer 20 is equal to the surface area of ​​the second flexible material layer 20. This allows more of the first adhesive layer 40 to adhere to the surface of the second flexible material layer 30, thereby making the adhesion between the first protective layer 50 and the second flexible material layer 30 more stable through the first adhesive layer 40.

[0038] In some alternative implementations, such as Figure 2 As shown, the first flexible material layer 10 has a third surface opposite to the first surface, and the flexible cover plate also includes a second adhesive layer 60 located on the side of the first flexible material layer 10 with the third surface; and a second protective layer 70 located on the side of the second adhesive layer 60 opposite to the first flexible material layer 10.

[0039] In the above optional implementations, such as Figure 2As shown, the light-blocking layer 20 is located on one side of the first surface of the first flexible material layer 10, the second flexible material layer 30 is located on the side of the light-blocking layer 20 away from the first flexible material layer 10, and the first adhesive layer 40 is located on the other side of the first surface of the first flexible material layer 10. It should be noted that the first adhesive layer 40 is in contact with both the light-blocking layer 20 and the second flexible material layer 30. The first protective layer 50 is located on the side of the first adhesive layer 40 and the second flexible material layer 30 away from the first flexible material layer 10, and is in contact with both the first adhesive layer 40 and the second flexible material layer 30. The first flexible material layer 10 has a third surface on the side away from the light-blocking layer 20. The third surface and the first surface are opposite surfaces of the first flexible material layer 10. A second adhesive layer 60 and a second protective layer 70 are sequentially disposed on the third surface. The second adhesive layer 60 completely covers the third surface, which can better protect the first flexible material layer 10. The second protective layer 70 covers the second adhesive layer 60, so that when the second protective layer 70 is removed, the second adhesive layer 60 can further prevent the residue phenomenon on the surface of the first flexible material layer 10 after the film is peeled off.

[0040] In some alternative implementations, such as Figure 2 As shown, in a direction parallel to the first surface, the first flexible material layer 10 has a first side and a second side opposite to each other, and the light blocking layer 20 has a first projection on the first surface. The first projection has two parts, one part of which is located at the end of the first surface near the first side, and the other part is located at the end of the first surface near the second side.

[0041] In the above optional implementations, such as Figure 2 As shown, the first flexible material layer 10 has two ends along the first surface, and the light-blocking layer 20 has a first projection on the first surface. The projection has two parts, one part of which is located at the end of the first flexible material layer 10 along the first side of the first surface, and the other part is located at the end of the second side of the first surface. Thus, after the flexible cover plate with the light-blocking layer 20 is applied to the display screen, the light-blocking layer 20 located on the surface of the display panel can have a better light-blocking effect to block external light from entering.

[0042] In some alternative implementations, such as Figure 3As shown, the first protective layer 50 has a first protrusion 80 located on the first side, the second protective layer 70 has a second protrusion 90 located on the first side, and the flexible cover plate further includes a third flexible material layer 100 and a third adhesive layer 110. The third flexible material layer 100 is located between the first protrusion 80 and the second protrusion 90, and covers the sidewall of the first flexible material layer 100 near the first side. The third flexible material layer 100 is in contact with the second adhesive layer 60 and the second protective layer 70, respectively. The third adhesive layer 110 is located between the third flexible material layer 100 and the first protrusion 80, and the third adhesive layer 110 is in contact with the first protective layer 50, the second flexible material layer 30, and the third flexible layer 100, respectively.

[0043] In the above optional implementations, such as Figure 3 As shown, the light-blocking layer 20 is located on one side of the first surface of the first flexible material layer 10, the second flexible material layer 30 is located on the side of the light-blocking layer 20 away from the first flexible material layer 10, and the first adhesive layer 40 is located on the other side of the first surface of the first flexible material layer 10. It should be noted that the first adhesive layer 40 is in contact with both the light-blocking layer 20 and the second flexible material layer 30. The first protective layer 50 is located on the side of the first adhesive layer 40 and the second flexible material layer 30 away from the first flexible material layer 10, and is in contact with both the first adhesive layer 40 and the second flexible material layer 30. The first flexible material layer 10 has a third surface facing away from the first surface. The second adhesive layer 60 is located on the side of the first flexible material layer 10 with the third surface, and the second protective layer 70 is located on the side of the second adhesive layer 60 facing away from the first flexible material layer 10. The first protective layer 50 has a first... The protrusion 80 is located on the first side of the first protective layer 50. The second protective layer 70 has a second protrusion 90 located on the first side of the second protective layer 70. The third flexible material layer 100 covers the side wall of the first flexible material layer 10 near the first side, is located between the first protrusion 80 and the second protrusion 90, and is in contact with the second adhesive layer 60 and the second protective layer 70 respectively. Between the third flexible material layer 100 and the first protrusion 80, a third adhesive layer 110 is also provided. The third adhesive layer 110 is in contact with the first protective layer 50, the second flexible material layer 30 and the third flexible material layer 100. The third adhesive layer 110 is in contact with the third flexible material layer 100, so that the first protective layer 50 and the second protective layer 70 are bonded together. The first protective layer 50 and the second protective layer 70 cover both sides of the entire flexible cover plate, which plays a better protective role for the main body of the flexible cover plate.

[0044] In the above optional embodiments, the third flexible material layer 100 can be any one of industrial rubber sheet, asbestos rubber sheet, polytetrafluoroethylene, asbestos resin sheet and impregnated asbestos gasket, and this application does not make specific limitations.

[0045] In some alternative implementations, such as Figure 3 As shown, at least one of the first adhesive layer 40, the second adhesive layer 60, and the third adhesive layer 110 is a strong-weak adhesive layer. The strong-weak adhesive layer includes a first adhesive layer and a second adhesive layer stacked together. The strength of the first adhesive layer is greater than the strength of the second adhesive layer. The second adhesive layer is located on the side of the first adhesive layer away from the first flexible material layer 10.

[0046] In the above optional implementations, such as Figure 3 As shown, at least one of the first adhesive layer 40, the second adhesive layer 60, and the third adhesive layer 110 is a strong-weak adhesive layer, wherein the strong-weak adhesive layer includes a first adhesive layer and a second adhesive layer stacked together, and the strength of the first adhesive layer is greater than the strength of the second adhesive layer. The first adhesive layer and the second adhesive layer are sequentially disposed on one side of the first flexible material layer 10. For example, if the second adhesive layer of the first adhesive layer 40 is located on the first surface of the first flexible material layer 10, then the first adhesive layer is located on the third surface of the first adhesive layer 40. If the second adhesive layer of the second adhesive layer 60 is located on the third surface of the first flexible material layer 10, then the first adhesive layer is located on the side of the second adhesive layer 60 away from the third surface, that is, the first adhesive layer is bonded to the second protective layer 70, so that the first protective layer 50, the first adhesive layer 40, and the third adhesive layer, or the second protective layer 70 and the second adhesive layer 60, can be easily separated and removed from the first flexible material layer 10.

[0047] Because the strong and weak adhesives can be cut, a blank space can be cut above the light-blocking layer 20, where a second flexible material layer 30 with anti-static properties can be attached. This prevents the light-blocking layer 20 from contacting the first protective layer 50, thus preventing contamination. The first protective layer 50 and the second protective layer 70 are designed to extend outwards, and a blank space is cut in the strong and weak adhesive of the second protective layer 70, where a third flexible material layer 100 with anti-static properties can be attached. This allows the first protective layer 50 and the second protective layer 70 to adhere together, and the first protective layer 50 and the second protective layer 70 cover both sides of the entire flexible cover plate, providing better protection for the main body of the flexible cover plate.

[0048] For example, the aforementioned strong and weak adhesive is a pre-formed pressure-sensitive double-sided adhesive, wherein the strong and weak adhesive can be divided into medium and low viscosity Yidao adhesive and strong and weak double-sided adhesive with strong adhesion. The aforementioned Yidao adhesive can be easily removed from the substrate without leaving a mark, and the strong and weak double-sided adhesive can form a permanent bond on the bonding surface. The aforementioned first adhesive layer can be strong and weak double-sided adhesive, and the second adhesive layer can be Yidao adhesive.

[0049] In some alternative implementations, such as Figure 3 As shown, the third flexible material layer 100 has a first end face that is opposite to the second protective layer 70, and the first end face is coplanar with the first surface of the first flexible material layer 10.

[0050] In the above optional implementations, such as Figure 3 As shown, the contact surface between the third flexible material layer 100 and the third adhesive layer 110 is the first end face away from the second protective layer 70. The first end face is coplanar with the first surface so that when the first protective layer 50, the first adhesive layer 40 and the third adhesive layer 110 are removed in the future, the first end face of the third flexible material layer 100 can continue to protect the end of the first side of the first surface of the first flexible material layer 10.

[0051] In some alternative implementations, the viscosity of the first protective layer is lower than that of the second protective layer.

[0052] In the above optional implementations, such as Figure 3 As shown, in order to facilitate the use of flexible cover plates to manufacture the display screen, the viscosity of the first protective layer 50 is made to be less than that of the second protective layer 70. This makes it easier to remove the first protective layer 50, the first adhesive layer 40, and the third adhesive layer 110 with lower viscosity first, and then use adhesive to bond the flexible cover plate to the display panel before removing the second protective layer 70 and the second adhesive layer 60 with higher viscosity. This reduces the risk of cracking at the edge of the light-blocking layer.

[0053] For example, such as Figure 3As shown, the flexible cover plate includes a light-blocking layer 20, a second flexible material layer 30, a first flexible material layer 10, a first adhesive layer 40, a first protective layer 50, a second adhesive layer 60, a second protective layer 70, a first protrusion 80, a second protrusion 90, a third flexible material layer 100, and a third adhesive layer 110. The light-blocking layer 20 is located on one side of the first surface of the first flexible material layer 10, the second flexible material layer 30 is located on the side of the light-blocking layer 20 away from the first flexible material layer 10, and the first adhesive layer 40 is located on the other side of the first surface of the first flexible material layer 10. The material of the first flexible material layer is transparent polyimide. It should be noted that the first adhesive layer 40 is in contact with the light-blocking layer 20, and also with the second flexible material layer 30. A first protective layer 50 is located on the side of the first adhesive layer 40 and the second flexible material layer 30 away from the first flexible material layer 10, and is in contact with the first adhesive layer 40 and the second flexible material layer 30. The first flexible material layer 10 has a third surface opposite to the first surface. The second adhesive layer 60 is located on the side of the first flexible material layer 10 with the third surface. The second protective layer 70 is located on the side of the second adhesive layer 60 opposite to the first flexible material layer 10. The first protective layer 50 has a first protrusion 80 on the first side of the first protective layer 50, and the second protective layer 70 has a second protrusion 90 on the first side of the second protective layer 70. The third flexible material layer 100 covers the first flexible material layer 10 near the first side. On the sidewall, a third adhesive layer 110 is disposed between the first protrusion 80 and the second protrusion 90, and in contact with the second adhesive layer 60 and the second protective layer 70, respectively. Between the third flexible material layer 100 and the first protrusion 80, a third adhesive layer 110 is also disposed. The third adhesive layer 110 contacts the first protective layer 50, the second flexible material layer 30, and the third flexible material layer 100. The contact surface between the third flexible material layer 100 and the third adhesive layer 110 is a first end face facing away from the second protective layer 70. This first end face is flush with the first surface, i.e., the first end face and the first surface are coplanar. The first adhesive layer 40, the second adhesive layer 60, and the third adhesive layer 110 each have at least one strong and weak adhesive layer, wherein the strong and weak adhesive layer includes a stacked first adhesive layer and a second adhesive layer. Furthermore, the strength of the first adhesive layer is greater than that of the second adhesive layer. The first adhesive layer and the second adhesive layer are sequentially disposed on one side of the first flexible material layer 10. For example, if the second adhesive layer of the first adhesive layer 40 is located on the first surface of the first flexible material layer 10, then the first adhesive layer is located on the third surface of the first adhesive layer 40; if the second adhesive layer of the second adhesive layer 60 is located on the third surface of the first flexible material layer 10, then the first adhesive layer is located on the side of the second adhesive layer 60 away from the third surface. That is, the first adhesive layer is bonded to the second protective layer 70 so that the first protective layer 50, the first adhesive layer 40 and the third adhesive layer 110 or the second protective layer 70 and the second adhesive layer 60 can be smoothly separated and removed from the first flexible material layer 10.The viscosity of the first protective layer 50 is lower than that of the second protective layer 70. This prevents the second protective layer 70 from detaching due to insufficient adhesion when removing the first protective layer 50. This allows for the smooth removal of the first protective layer 50, the first adhesive layer 40, and the third adhesive layer 110 before removing the second protective layer 70 and the second adhesive layer 60.

[0054] Through the above embodiments, such as Figure 3 and Figure 5 As shown, the first protective layer 50 and the first flexible material layer 10 in the flexible cover are connected by the first adhesive layer 40. Since the first protective layer 50 covers both the second flexible material layer 30 and the first adhesive layer 40, when the first protective layer 50 is removed, the second flexible material layer 30 can be used to avoid residual adhesive on the surface of the light-blocking layer 20 after the film is peeled off. In the process of bonding the flexible cover to the display panel 130 with adhesive, the influence of residual adhesive on the adhesion between the cover and the adhesive, as well as the optical, electrical and other physical properties of the light-blocking layer 20, is avoided. At the same time, it also avoids contamination of the camera hole area when applied to the display device, and reduces the risk of cracking at the edge of the light-blocking layer 20.

[0055] It is important to note that Figures 1 to 3 This is a partial cross-sectional structural diagram of the flexible cover plate of this application, exemplarily. Figures 1 to 3 These are partial cross-sectional structural diagrams of the flexible cover plate near the first side. A schematic diagram of the overall cross-sectional structure of the flexible cover plate is shown below. Figure 4 As shown, the flexible cover plate includes a light-blocking layer 20, a second flexible material layer 30, a first flexible material layer 10, a first adhesive layer 40, a first protective layer 50, a second adhesive layer 60, a second protective layer 70, a first protrusion 80, a second protrusion 90, a third flexible material layer 100, and a third adhesive layer 110, and has a symmetrical structure.

[0056] According to embodiments of this application, a method for manufacturing a display screen is also provided, such as... Figure 5 As shown, it includes the following steps:

[0057] S200, providing a flexible cover plate, the flexible cover plate including a first flexible material layer, a light blocking layer, a second flexible material layer and a first adhesive layer, and removing the first protective layer, the second flexible material layer and the first adhesive layer from the flexible cover plate to obtain the cover plate body;

[0058] S210, the cover plate body is attached to the display panel so that the light-blocking layer in the cover plate body is located on the side of the first flexible material layer closer to the display panel.

[0059] In the above optional embodiments, when performing step S200, the first protective layer in the flexible cover plate is first removed. The first protective layer will also remove the second flexible material layer, the first adhesive layer and the third adhesive layer that are adhered to it, so as to expose the first flexible material layer and the light-blocking layer of the flexible cover plate, thus obtaining the cover plate body.

[0060] In the above optional embodiments, when performing step S210, the side of the cover plate body having the first surface of the first flexible material layer is attached to the display panel, so that the light blocking layer is located on the side of the first flexible material layer closer to the display panel, i.e., the light blocking layer. The positional relationship between the first flexible material layer and the display panel is: the light blocking layer is located between the first flexible material layer and the display panel.

[0061] In one example of this application, the method for manufacturing the aforementioned display screen includes:

[0062] Provide the flexible cover plate as described in the foregoing embodiments, such as Figures 1 to 3 As shown, the first protective layer 50, the second flexible material layer 30 and the first adhesive layer 40 in the flexible cover plate are removed to obtain the cover plate body;

[0063] like Figure 6 As shown, the cover plate body is attached to the display panel 130 by an optical adhesive layer 140, so that the light blocking layer 20 in the cover plate body is located on the side of the first flexible material layer 10 closer to the display panel.

[0064] It is important to note that Figure 6 The diagram shows a partial cross-sectional view of the flexible cover plate applied to the display screen in the foregoing embodiments of this application. The overall cross-sectional view of the display screen is shown below. Figure 7 As shown, the cover plate body includes a first flexible material layer 10, a light-blocking layer 20, a display panel 130, and an optical adhesive layer 140, and has a symmetrical structure.

[0065] In the above optional embodiments, the bonding process of attaching one side of the first surface of the first flexible material layer to the display panel is either frame bonding or full bonding, and the bonding material is adhesive. Those skilled in the art can reasonably select the above bonding process according to the actual situation, and this application does not make specific limitations.

[0066] The flexible cover plate provided in the above embodiments of this application, such as Figure 3As shown, it also includes a second adhesive layer 60 and a second protective layer 70. The second adhesive layer 60 is located on the third surface of the first flexible material layer 10, and the second protective layer 70 is located on the side of the second adhesive layer 60 away from the third surface. At this time, after performing step S210, the process further includes: peeling off the second protective layer, which peels off the third flexible material layer and the second adhesive layer that are adhered to it, thereby exposing the first flexible material layer of the flexible cover plate to form a display screen having the aforementioned flexible cover plate.

[0067] For example, after obtaining a complete flexible cover plate through the above-described manufacturing process, the first protective layer of the flexible cover plate is first removed. The first protective layer will also remove the second flexible material layer, the first adhesive layer, and the third adhesive layer that are adhered to it, so as to expose the first flexible material layer and the light-blocking layer of the flexible cover plate, thus obtaining the cover plate body. The side of the cover plate body with the first surface of the first flexible material layer is attached to the display panel, so that the light-blocking layer is located on the side of the first flexible material layer closer to the display panel, i.e., the light-blocking layer. The positional relationship between the first flexible material layer and the display panel is: the light-blocking layer is located between the first flexible material layer and the display panel. The second protective layer is then removed. The second protective layer will also remove the third flexible material layer and the second adhesive layer that are adhered to it, so as to expose the first flexible material layer of the flexible cover plate, thereby forming a display screen with the above-described flexible cover plate.

[0068] In the above embodiments, the first protective layer and the first flexible material layer in the flexible cover are connected by the first adhesive layer. Since the first protective layer covers both the second flexible material layer and the first adhesive layer, when the first protective layer is removed in step S200, the second flexible material layer can be used to avoid residual adhesive on the surface of the light-blocking layer after the film is peeled off. Then, in step S201, the flexible cover is bonded to the display panel with adhesive. After the process of step S201, the second protective layer is peeled off, and the third flexible material layer and the second adhesive layer that are bonded to it are also peeled off, so as to expose the first flexible material layer of the flexible cover, thereby forming a display screen with the above flexible cover. In this process, not only is the edge of the first flexible material layer protected, but also the adhesion of residual adhesive and foreign matter to the cover and adhesive and the optical, electrical and other physical properties of the light-blocking layer are avoided. At the same time, it also avoids contamination of the camera hole area when applied to the display device, and reduces the risk of cracking at the edge of the light-blocking layer.

[0069] According to an embodiment of this application, a display device is also provided, which includes the display panel provided in the foregoing embodiments. The display panel 130 includes a light-blocking layer 20 and a first flexible material layer 10, wherein the light-blocking layer 20 is located between the display panel 130 and the first flexible material layer 10. Figure 6 and Figure 7 As shown.

[0070] For example, such as Figure 8 As shown, the display device 120 provided in this application embodiment can be a mobile phone. The above-mentioned display device can also be any electronic product with display function, including but not limited to laptops, tablets, digital cameras, televisions, desktop monitors, smart bracelets, smart glasses, vehicle displays, industrial control equipment, medical displays, touch interactive terminals, etc. This application embodiment does not specifically limit it in this regard.

[0071] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0072] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A flexible cover plate, characterized in that, include: A first flexible material layer has a first surface; A light-blocking layer is located on one side of the first flexible material layer having the first surface, and the projection of the light-blocking layer on the first surface is located in a portion of the first surface; The second flexible material layer is located on the side of the light-blocking layer that is away from the first surface, and the side of the second flexible material layer that is away from the light-blocking layer is the second surface. The first adhesive layer is located on one side of the first surface of the first flexible material layer. The projection of the first adhesive layer on the first surface is located in another part of the first surface, and the side of the first adhesive layer facing away from the first flexible material layer is the third surface. A first protective layer covers the second surface and the third surface.

2. The flexible cover plate according to claim 1, characterized in that, The sum of the projected areas of the light-blocking layer and the first adhesive layer on the first surface is equal to the area of ​​the first surface.

3. The flexible cover plate according to claim 1, characterized in that, The second surface and the third surface are coplanar.

4. The flexible cover plate according to claim 1, characterized in that, The light-blocking layer and the projection of the second flexible material layer on the first surface completely overlap.

5. The flexible cover plate according to any one of claims 1 to 4, characterized in that, The first flexible material layer has a third surface facing away from the first surface, and the flexible cover plate further includes: The second adhesive layer is located on the side of the first flexible material layer that has the third surface; The second protective layer is located on the side of the second adhesive layer that faces away from the first flexible material layer.

6. The flexible cover plate according to claim 5, characterized in that, In a direction parallel to the first surface, the first flexible material layer has opposing first and second sides, and the light-blocking layer has a first projection on the first surface, a portion of which is located at the end of the first surface near the first side, and another portion of which is located at the end of the first surface near the second side.

7. The flexible cover plate according to claim 6, characterized in that, The first protective layer has a first protrusion located on the first side, the second protective layer has a second protrusion located on the first side, and the flexible cover plate further includes: A third flexible material layer, with a gasket located between the first protrusion and the second protrusion, the third flexible material layer covering the sidewall of the first flexible material layer near the first side, and the third flexible material layer in contact with the second adhesive layer and the second protective layer respectively; The third adhesive layer is located between the third flexible material layer and the first protrusion, and the third adhesive layer is in contact with the first protective layer, the second flexible material layer and the third flexible material layer respectively.

8. The flexible cover plate according to claim 7, characterized in that, At least one of the first adhesive layer, the second adhesive layer, and the third adhesive layer is a strong-weak adhesive layer. The strong-weak adhesive layer includes a first adhesive layer and a second adhesive layer stacked together. The strength of the first adhesive layer is greater than the strength of the second adhesive layer. The first adhesive layer is located on the side of the second adhesive layer that is away from the first flexible material layer.

9. The flexible cover plate according to claim 7, characterized in that, The third flexible material layer has a first end face that is opposite to the second protective layer, and the first end face is coplanar with the first surface.

10. The flexible cover plate according to any one of claims 1 to 4, characterized in that, The material of the first flexible material layer includes transparent polyimide.

11. The flexible cover plate according to claim 5, characterized in that, The viscosity of the first protective layer is less than that of the second protective layer.

12. A method for manufacturing a display screen, characterized in that, include: Provide a flexible cover plate according to any one of claims 1 to 11; Remove the first protective layer, the second flexible material layer, and the first adhesive layer from the flexible cover plate to obtain the cover plate body; The cover plate body is attached to the display panel so that the light-blocking layer in the cover plate body is located on the side of the first flexible material layer closer to the display panel.

13. A display screen, characterized in that, It is produced by the manufacturing method described in claim 12.

14. A display device, comprising a display screen, characterized in that, The display screen is manufactured by the manufacturing method described in claim 12.

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