Display module, manufacturing method thereof and display device

Abstract

The invention relates to the technical field of display, in particular to a display module, a manufacturing method thereof and a display device. The display module comprises a flexible display panel, and the flexible display panel comprises a display area, a binding area and a bending area located between the display area and the binding area; the bending protection layer is located on the light emitting side of the flexible display panel, and the bending protection layer at least partially covers the bending area; the anti-sticking layer covers at least part of the surface of the side, away from the flexible display panel, of the bending protection layer, and the surface energy of the anti-sticking layer is smaller than that of the bending protection layer; the cover plate covers the display area, the cover plate is located on the side, away from the flexible display panel, of the anti-sticking layer, and the vertical projection of the cover plate on the flexible display panel and the vertical projection of the anti-sticking layer on the flexible display panel are partially overlapped. The problem that foreign matter remains on the cover plate is effectively solved, and the yield of the display module is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a display module, a manufacturing method thereof, and a display device. Background Art

[0002] In the information age, display devices, as one of the most important carriers of information, play an increasingly crucial role in people's work and daily lives. Display modules, as a key component of display devices, are widely used in various electronic products. Narrow bezel and ultra-thin module designs are increasingly popular among end-user manufacturers and consumers. However, end-users are increasingly demanding on the size and thickness of display module bezels. Designing a module structure with narrow bezels and ultra-thin thickness is a pressing issue.

[0003] In the related art, this can be achieved by bending the binding area so that the driver chip is bent to the back of the display module. However, display modules with this structure are prone to the problem of foreign matter remaining on the cover plate, resulting in a low display module yield. Summary of the Invention

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a display module and a manufacturing method thereof, and a display device, which effectively solve the problem of foreign matter residue on the cover plate and are conducive to improving the yield of the display module.

[0005] The present disclosure provides a display module, comprising: a flexible display panel, the flexible display panel comprising a display area and a binding area, and a bending area located between the display area and the binding area; a bending protective layer, the bending protective layer being located on the light-emitting side of the flexible display panel, and the bending protective layer at least partially covering the bending area; an anti-sticking layer, the anti-sticking layer covering at least a portion of the surface of the bending protective layer away from the flexible display panel, the surface energy of the anti-sticking layer being less than the surface energy of the bending protective layer; a cover plate, the cover plate covering the display area, and the cover plate being located on the side of the anti-sticking layer away from the flexible display panel, the vertical projection of the cover plate on the flexible display panel partially overlapping with the vertical projection of the anti-sticking layer on the flexible display panel.

[0006] The present disclosure also provides a method for manufacturing a display module, including: providing a flexible display panel, the flexible display panel including a display area and a binding area, and a bending area located between the display area and the binding area; forming a bending protective layer and an anti-sticking layer on one side of the bending area, the bending protective layer being located on the light-emitting side of the flexible display panel, the anti-sticking layer covering at least a portion of the surface of the bending protective layer away from the flexible display panel, the surface energy of the anti-sticking layer being less than the surface energy of the bending protective layer; providing a cover plate, attaching the cover plate to one side of the flexible display panel, the cover plate covering the display area, and the cover plate being located on the side of the anti-sticking layer away from the flexible display panel, the vertical projection of the cover plate on the flexible display panel partially overlapping with the vertical projection of the anti-sticking layer on the flexible display panel.

[0007] The present disclosure also provides a display device, comprising the above-mentioned display module.

[0008] The technical solution provided by the present disclosure has the following advantages compared with the existing technology:

[0009] The display module provided by the present disclosure includes an anti-sticking layer, which covers at least a portion of the surface of the curved protective layer away from the flexible display panel. Thus, the cover plate is located on the side of the anti-sticking layer away from the flexible display panel, and the vertical projection of the cover plate on the flexible display panel partially overlaps with the vertical projection of the anti-sticking layer on the flexible display panel. As a result, the cover plate contacts the anti-sticking layer, which helps prevent the cover plate from contacting the curved protective layer. Because the surface energy of the anti-sticking layer is lower than the surface energy of the curved protective layer, i.e., the adhesion of the anti-sticking layer is lower than that of the curved protective layer, the adhesion of the anti-sticking layer is relatively low. Even if the cover plate contacts the anti-sticking layer, some of the material in the anti-sticking layer will not adhere to the cover plate. This effectively solves the problem of foreign matter remaining on the cover plate and helps improve the yield rate of the display module.

[0010] Correspondingly, the manufacturing method of the display module provided by the present disclosure also has the above technical effects.

[0011] Correspondingly, the display device provided by the present disclosure also has the above technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0013] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0014] Figure 1 1 is a schematic structural diagram of a display module provided by the present disclosure;

[0015] Figure 2 yes Figure 1 A schematic structural diagram of the display module when the bending area is in an unbent state;

[0016] Figure 3 is a structural schematic diagram of another display module provided by the present disclosure;

[0017] Figure 4 yes Figure 3 A schematic structural diagram of the display module when the bending area is in an unbent state;

[0018] Figure 5 This is a structural diagram of another display module provided by the present disclosure;

[0019] Figure 6 yes Figure 5 A schematic structural diagram of the display module when the bending area is in an unbent state;

[0020] Figure 7 This is a flow chart of a method for manufacturing a display module provided by the present disclosure;

[0021] Figures 8-10 yes Figure 7 Schematic diagram of the structure corresponding to each step;

[0022] Figure 11 This is a flow chart of step S20 in the method for manufacturing a display module provided by the present disclosure;

[0023] Figure 12 This is another flow chart of step S20 in the method for manufacturing a display module provided by the present disclosure;

[0024] Figure 13 yes Figure 12 Schematic diagram of the structure corresponding to the steps in the figure;

[0025] Figure 14 It is a planar schematic diagram of a display device provided by the present disclosure. DETAILED DESCRIPTION

[0026] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features therein can be combined with each other in the absence of conflict.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0028] Figure 1 This is a schematic diagram of the structure of a display module provided by the present disclosure. Figure 2 yes Figure 1 A schematic diagram of the structure of the display module when the bending area is in an unbent state, referring to Figure 1 and Figure 2 This embodiment provides a display module, which includes: a flexible display panel 10, the flexible display panel 10 including a display area AA and a binding area BA1, and a bending area BA2 located between the display area AA and the binding area BA1;

[0029] A bending protection layer 20 , which is located on the light-emitting side of the flexible display panel 10 and at least partially covers the bending area BA2 ;

[0030] The anti-adhesive layer 30 covers at least a portion of the surface of the curved protective layer BA2 away from the flexible display panel 10, and the surface energy of the anti-adhesive layer 30 is less than the surface energy of the curved protective layer BA2;

[0031] The cover plate 40 covers the display area AA and is located on the side of the anti-adhesive layer 30 away from the flexible display panel 10. The vertical projection of the cover plate 40 on the flexible display panel 10 partially overlaps with the vertical projection of the anti-adhesive layer 30 on the flexible display panel 10.

[0032] Specifically, the display module provided in this embodiment includes a flexible display panel 10, which includes a flexible substrate. The flexible substrate can be made of a flexible polymer material to ensure that the flexible display panel 10 can be bent. Optionally, the flexible display panel 10 can be a self-luminous display panel. Of course, in other embodiments of the present disclosure, the flexible display panel 10 can also be other types of display panels, which will not be further described in this disclosure.

[0033] The flexible display panel 10 includes a display area AA and a binding area BA1, and a bending area BA2 located between the display area AA and the binding area BA1. The display area AA also includes a plurality of display devices (not shown in the figure), thereby enabling the display area AA in the flexible display panel 10 to display images. Optionally, the display module also includes a support structure 50 and a driver chip 60. The driver chip 60 is bonded to a side surface of the binding area BA1. Part of the support structure 50 is located on the surface of the display area AA away from the cover plate 40, and part of the support structure 50 is located on the side of the binding area BA1 away from the driver chip 60. The support structure 50 can support the flexible display panel 10. The bending area BA2 is not provided with a support structure 50 to prevent the support structure 50 from affecting the bending of the bending area BA2.

[0034] The bending area BA2 in the flexible display panel 10 can be bent in a direction away from the light-emitting side of the flexible display panel 10, thereby positioning the binding area BA1 on the backlight side of the flexible display panel 10, thereby positioning the driver chip 60 on the backlight side of the flexible display panel 10, which is conducive to achieving a narrow bezel design. The display module also includes a bending protection layer 20, which is located on the light-emitting side of the flexible display panel 10 and at least partially covers the bending area BA2. The bending protection layer 20 can improve the bending performance of the bending area BA2, facilitating the bending of the bending area BA2 into an arc shape. Optionally, the bending protection layer 20 can be a UV adhesive layer (ultraviolet curing adhesive layer).

[0035] The display module also includes a cover plate 40, which covers the display area AA and is located on the side of the curved protective layer 20 away from the flexible display panel 10. The cover plate 40 is primarily used to protect the flexible display panel 10 and prevent the display module from being damaged by external impact forces that could damage the display device in the flexible display panel 10. The cover plate 40 may be a glass cover plate or other encapsulated cover plate.

[0036] When setting the cover plate 40, part of the cover plate 40 is located on the side of the curved protective layer 20 away from the flexible display panel 10, and the cover plate 40 is easy to touch the curved protective layer 20. Since the curved protective layer 20 is usually made of a material with a large surface energy, that is, the curved protective layer 20 has a large adhesion, part of the material in the curved protective layer 20 is adhered to the cover plate 40, that is, the problem of foreign matter residue is easy to appear on the cover plate 40, resulting in a low yield of the display module.

[0037] The display module provided in this embodiment further includes an anti-sticking layer 30, which covers at least a portion of the surface of the bending protection layer 20 on the side away from the flexible display panel 10. As a result, the cover plate 40 is located on the side of the anti-sticking layer 30 away from the flexible display panel 10, and the vertical projection of the cover plate 40 on the flexible display panel 10 partially overlaps with the vertical projection of the anti-sticking layer 30 on the flexible display panel 10. As a result, the cover plate 40 will contact the anti-sticking layer 30, which helps prevent the cover plate 40 from contacting the bending protection layer 20. Because the surface energy of the anti-sticking layer 30 is lower than the surface energy of the bending protection layer BA2, that is, the adhesion of the anti-sticking layer 30 is lower than the adhesion of the bending protection layer 20, the adhesion of the anti-sticking layer 30 is relatively low. Even if the cover plate 40 contacts the anti-sticking layer 30, some of the material in the anti-sticking layer 30 will not adhere to the cover plate 40. This effectively solves the problem of foreign matter remaining on the cover plate 40 and helps improve the yield rate of the display module.

[0038] Continue to refer Figure 1 and Figure 2 In some optional embodiments, the release layer 30 provided herein has a surface water drop angle greater than or equal to 100°; and / or the surface energy of the release layer 30 is less than 35 mN / m. Optionally, the release layer 30 is made of an oil or a hydrophobic material, and the surface energy of the oil or hydrophobic material is less than 35 mN / m. The release layer 30 made of an oil or hydrophobic material has low adhesion. Even if the cover plate 40 touches the release layer 30, some of the material in the release layer 30 will not adhere to the cover plate 40, effectively solving the problem of foreign matter residue on the cover plate 40 and improving the yield of the display module. Optionally, the release layer 30 is made of silicone oil or an organic fluorine material. Silicone oil and organic fluorine materials are commonly used in display modules. Using silicone oil or organic fluorine materials to make the release layer 30 can help reduce production costs. Of course, in other embodiments of the present disclosure, the release layer 30 can also be made of other materials with lower surface energy, which will not be detailed here.

[0039] Figure 3 This is a structural diagram of another display module provided by the present disclosure. Figure 4 yes Figure 3 A schematic diagram of the structure of the display module when the bending area is in an unbent state, referring to Figure 3 and Figure 4 In some optional embodiments, the overlapping portion of the cover plate 40 and the bending protection layer 20 at a vertical projection of the flexible display panel 10 is located within the vertical projection of the anti-adhesion layer 30 at the flexible display panel 10 .

[0040] Specifically, the overlapping portion of the vertical projection of the cover plate 40 on the flexible display panel 10 and the vertical projection of the bending protection layer 20 on the flexible display panel 10 is located within the vertical projection of the anti-sticking layer 30 on the flexible display panel 10. That is, the anti-sticking layer 30 completely blocks the portion of the bending protection layer 20 that may come into contact with the cover plate 40, thereby completely preventing the cover plate 40 from coming into contact with the bending protection layer 20. Because the surface energy of the anti-sticking layer 30 is lower than the surface energy of the bending protection layer BA2, that is, the adhesion of the anti-sticking layer 30 is lower than the adhesion of the bending protection layer 20, the adhesion of the anti-sticking layer 30 is relatively low. Even if the cover plate 40 comes into contact with the anti-sticking layer 30, part of the material in the anti-sticking layer 30 will not adhere to the cover plate 40. This can effectively solve the problem of foreign matter remaining on the cover plate 40 and is conducive to improving the yield rate of the display module.

[0041] In some optional embodiments, the anti-sticking layer 30 may only cover the portion of the surface of the curved protective layer 20 away from the flexible display panel 10, and it is only necessary to ensure that the overlapping portion of the cover plate 40 and the curved protective layer 20 on the vertical projection of the flexible display panel 10 is located within the vertical projection of the anti-sticking layer 30 on the flexible display panel 10. In this way, the anti-sticking layer 30 completely blocks the portion of the curved protective layer 20 that may touch the cover plate 40, thereby completely avoiding the cover plate 40 from touching the curved protective layer 20, which is beneficial to reducing production costs.

[0042] Continue to refer Figure 1 and Figure 2 In some optional embodiments, the anti-adhesion layer 30 completely covers the surface of the curved protection layer 20 away from the flexible display panel 10 .

[0043] Specifically, the anti-sticking layer 30 completely covers the surface of the curved protective layer 20 away from the flexible display panel 10, so that the anti-sticking layer 30 can completely block the part of the curved protective layer 20 that may touch the cover plate 40, thereby completely preventing the cover plate 40 from touching the curved protective layer 20. At the same time, the anti-sticking layer 30 is set on the entire surface of the curved protective layer 20 away from the flexible display panel 10, which is conducive to reducing the difficulty of setting the anti-sticking layer 30 and reducing the process difficulty.

[0044] Continue to refer Figure 1and Figure 2 In some optional embodiments, the display module further includes a polarizer 70 and a protective film 80. The polarizer 70 is located on a side of the flexible display panel 10 close to the cover plate 40, and covers the display area AA. The protective film 80 is located on a side of the polarizer 70 close to the cover plate 40, and covers the polarizer 70.

[0045] Part of the sidewall of the curved protection layer 20 contacts the sidewall of the polarizer 70 and the sidewall of the protection film 80 ;

[0046] Part of the sidewall of the release layer 30 is in contact with the sidewall of the protection film 80 .

[0047] Specifically, the display module also includes a polarizer 70, which is located on the side of the flexible display panel 10 close to the cover plate 40. The polarizer 70 covers the display area AA. The provision of the polarizer 70 can improve the display effect of the display module. The display module also includes a protective film 80, which is located on the side of the polarizer 70 close to the cover plate 40. The protective film 80 covers the polarizer 70 and protects the polarizer 70. Optionally, the protective film 80 can be reused as an adhesive layer to achieve adhesion between the cover plate 40 and the flexible display panel 10.

[0048] Part of the sidewalls of the curved protective layer 20 are in contact with the sidewalls of the polarizer 70 and the sidewalls of the protective film 80, forming a physical anchoring effect, which is beneficial to inhibit interlayer delamination, reduce the risk of interlayer separation caused by repeated bending or thermal expansion, and improve the overall structural integrity of the module.

[0049] Part of the side walls of the curved protective layer 20 are in contact with the side walls of the polarizer 70 and the side walls of the protective film 80, that is, the height of the side walls of the curved protective layer 20 in contact with the side walls of the polarizer 70 and the side walls of the protective film 80 is higher, and it is easy to contact the cover plate 40. The anti-sticking layer 30 is arranged on the surface of the curved protective layer 20 away from the flexible display panel 10, so that part of the side walls of the anti-sticking layer 30 are in contact with the side walls of the protective film 80, thereby avoiding the side walls of the curved protective layer 20 in contact with the side walls of the polarizer 70 and the side walls of the protective film 80 from contacting the cover plate 40, thereby avoiding part of the material in the curved protective layer 20 from adhering to the cover plate 40, which can effectively solve the problem of foreign matter residue on the cover plate 40 and is conducive to improving the yield of the display module.

[0050] Continue to refer Figure 1 and Figure 2 In some optional embodiments, the sum of the thickness of the bending protection layer 20 and the thickness of the anti-sticking layer 30 is less than the sum of the thickness of the polarizer 70 and the thickness of the protective film 80 .

[0051] Specifically, the cover plate 40 is located on the side of the anti-sticking layer 30 away from the flexible display panel 10, and the cover plate 40 is located on the side of the protective film 80 away from the flexible display panel 10. The sum of the thickness of the curved protective layer 20 and the thickness of the anti-sticking layer 30 is less than the sum of the thickness of the polarizer 70 and the thickness of the protective film 80, thereby avoiding the sum of the thickness of the curved protective layer 20 and the thickness of the anti-sticking layer 30 being too large, affecting the normal setting of the cover plate 40 on the side of the protective film 80 away from the flexible display panel 10.

[0052] Continue to refer Figure 1 and Figure 2 In some optional embodiments, the thickness of the anti-sticking layer 30 is less than the thickness of the bending protection layer 20, that is, the thickness of the anti-sticking layer 30 is relatively small, which is beneficial to reducing the processing difficulty of the anti-sticking layer 30. At the same time, it can avoid the situation where the thickness of the anti-sticking layer 30 is too thick and affects the bending area BA1.

[0053] It should be noted that the thickness of the anti-sticking layer 30 can be set according to actual needs, and this disclosure does not make any specific limitations on this.

[0054] Figure 5 This is a structural diagram of another display module provided by the present disclosure. Figure 6 yes Figure 5 A structural schematic diagram of the bending area in the display module when it is in an unbent state. In some optional embodiments, the cover plate 40 in the display module can be a curved cover plate, that is, the cover plate 40 includes a planar portion 41 and a curved portion 42 at least partially arranged around the planar portion 41, and the curved portion 42 is bent in a direction close to the flexible display panel 10.

[0055] Since the curved portion 42 is bent in a direction close to the flexible display panel 10, the vertical projection of the curved portion 42 on the flexible display panel 10 at least partially overlaps with the vertical projection of the curved protective layer 20 on the flexible display panel 10, and the curved portion 42 is likely to touch the curved protective layer 20. Since the curved protective layer 20 is usually made of a material with a large surface energy, that is, the curved protective layer 20 has a large adhesion, part of the material in the curved protective layer 20 is bonded to the curved portion 42, that is, the problem of foreign matter residue is likely to appear on the cover plate 40, resulting in a low yield of the display module.

[0056] Therefore, the display module provided in this embodiment further includes a release layer 30, which covers at least a portion of the surface of the bending protection layer 20 on the side away from the flexible display panel 10. As a result, the cover plate 40 is located on the side of the release layer 30 away from the flexible display panel 10, and the vertical projection of the cover plate 40 on the flexible display panel 10 partially overlaps with the vertical projection of the release layer 30 on the flexible display panel 10. As a result, the cover plate 40 will touch the release layer 30, which helps prevent the cover plate 40 from touching the bending protection layer 20. Because the surface energy of the release layer 30 is lower than the surface energy of the bending protection layer BA2, that is, the adhesion of the release layer 30 is lower than the adhesion of the bending protection layer 20, the adhesion of the release layer 30 is relatively low. Even if the cover plate 40 touches the release layer 30, part of the material in the release layer 30 will not adhere to the cover plate 40, which can effectively solve the problem of foreign matter remaining on the cover plate 40 and help improve the yield rate of the display module.

[0057] It should be noted that the embodiment of the present disclosure does not specifically limit the shape of the cover plate 40, and the shape of the cover plate 40 can also be as follows: Figure 1 The plane structure shown can be configured according to actual needs, and will not be described in detail in this disclosure.

[0058] Figure 7 This is a flow chart of a method for manufacturing a display module provided by the present disclosure. Figures 8-10 yes Figure 7 The structural diagram corresponding to each step in the reference Figure 7-10 This embodiment provides a method for manufacturing a display module, comprising:

[0059] Step S10 : providing a flexible display panel, wherein the flexible display panel includes a display area, a binding area, and a bending area between the display area and the binding area.

[0060] refer to Figure 8 Corresponding to step S10, a flexible display panel 10 is provided. The flexible display panel 10 includes a flexible substrate. The flexible substrate may be a flexible polymer material to ensure that the flexible display panel 10 can be bent. Optionally, the flexible display panel 10 may be a self-luminous display panel. Of course, in other embodiments of the present disclosure, the flexible display panel 10 may also be other types of display panels, which will not be further described in this disclosure.

[0061] The flexible display panel 10 includes a display area AA and a binding area BA1, as well as a bending area BA2 located between the display area AA and the binding area BA1. The display area AA also includes multiple display devices (not shown), thereby enabling the display area AA of the flexible display panel 10 to display images. Optionally, the display module also includes a support structure 50, which can support the flexible display panel 10. The bending area BA2 is not provided with a support structure 50 to prevent the support structure 50 from affecting the bending of the bending area BA2.

[0062] In subsequent steps, the bending area BA2 in the flexible display panel 10 can be bent in a direction away from the light-emitting side of the flexible display panel 10, thereby setting the binding area BA1 on the backlight side of the flexible display panel 10, and thus setting the driving chip on the backlight side of the flexible display panel 10, which is conducive to achieving a narrow bezel design.

[0063] In subsequent steps, a polarizer 70 and a protective film 80 may be attached to the light-emitting side of the display area AA in the flexible display panel 10 .

[0064] In step S20, a bending protection layer and an anti-sticking layer are formed on one side of the bending area. The bending protection layer is located on the light-emitting side of the flexible display panel. The anti-sticking layer covers at least a portion of the surface of the bending protection layer away from the flexible display panel. The surface energy of the anti-sticking layer is less than the surface energy of the bending protection layer.

[0065] refer to Figure 9 , corresponding to step S20, a bending protection layer 20 and an anti-sticking layer 30 are formed on one side of the bending area BA2. The bending protection layer 20 is located on the light-emitting side of the flexible display panel 10, and the anti-sticking layer 30 covers at least a portion of the surface of the bending protection layer 20 away from the flexible display panel 10, that is, the bending protection layer 20 is located on the light-emitting side of the flexible display panel 10, and the bending protection layer 20 at least partially covers the bending area BA2. The bending protection layer 20 can improve the bending performance of the bending area BA2, which is conducive to the bending area BA2 being bent into an arc shape. Optionally, the bending protection layer 20 can be a UV adhesive layer (ultraviolet curing adhesive layer). The anti-sticking layer 30 covers at least a portion of the surface of the bending protection layer 20 away from the flexible display panel 10. The surface energy of the anti-sticking layer 30 is less than the surface energy of the bending protection layer BA2, that is, the adhesion of the anti-sticking layer 30 is less than the adhesion of the bending protection layer 20, and the adhesion of the anti-sticking layer 30 is relatively small.

[0066] In step S30, a cover plate is provided and attached to one side of the flexible display panel. The cover plate covers the display area and is located on the side of the anti-sticking layer away from the flexible display panel. The vertical projection of the cover plate on the flexible display panel partially overlaps with the vertical projection of the anti-sticking layer on the flexible display panel.

[0067] refer to Figure 10Corresponding to step S30, a cover plate 40 is provided and attached to one side of the flexible display panel 10. The cover plate 40 covers the display area AA and is located on the side of the anti-adhesion layer 30 away from the flexible display panel 10. The cover plate 40 is mainly used to protect the flexible display panel 10 and prevent the display module from being damaged by external impact forces and the display device in the flexible display panel 10. The cover plate 40 can be a glass cover plate or other encapsulated cover plate.

[0068] Continue to refer Figure 5 and Figure 6 The display module manufactured using the manufacturing method provided in this embodiment includes an anti-sticking layer 30. The anti-sticking layer 30 covers at least a portion of the surface of the bending protection layer 20 away from the flexible display panel 10. As a result, the cover plate 40 is located on the side of the anti-sticking layer 30 away from the flexible display panel 10. The vertical projection of the cover plate 40 on the flexible display panel 10 overlaps with the vertical projection of the anti-sticking layer 30 on the flexible display panel 10. As a result, the cover plate 40 contacts the anti-sticking layer 30, which helps prevent the cover plate 40 from contacting the bending protection layer 20. Because the surface energy of the anti-sticking layer 30 is lower than the surface energy of the bending protection layer BA2, that is, the adhesion of the anti-sticking layer 30 is lower than the adhesion of the bending protection layer 20, the adhesion of the anti-sticking layer 30 is relatively low. Even if the cover plate 40 contacts the anti-sticking layer 30, part of the material in the anti-sticking layer 30 will not adhere to the cover plate 40. This effectively solves the problem of foreign matter remaining on the cover plate 40 and helps improve the yield rate of the display module.

[0069] Figure 11 This is a flow chart of step S20 in the method for manufacturing a display module provided by the present disclosure, referring to Figure 11 In some optional embodiments, forming a bending protection layer and an anti-sticking layer on one side of the bending area in step S20 includes:

[0070] Step S21, coating a bending protection layer material on one side of the bending area to form a bending protection layer intermediate, and curing the bending protection layer intermediate to form a bending protection layer;

[0071] Step S22 , coating a release layer material on the surface of the curved protective layer away from the flexible display panel to form a release layer intermediate, and curing the release layer intermediate to form a release layer.

[0072] For details, please refer to Figure 9 A bending protective layer material is coated on one side of the bending area BA2 to form a bending protective layer intermediate. After the bending protective layer intermediate is cured to form the bending protective layer 20, an anti-sticking layer material can be directly coated on the surface of the bending protective layer 20 away from the flexible display panel 10 to form an anti-sticking layer intermediate, and the anti-sticking layer intermediate is cured to form an anti-sticking layer 30. The manufacturing process is simple, which is conducive to reducing production costs.

[0073] Figure 12This is another flow chart of step S20 in the method for manufacturing a display module provided by the present disclosure. Figure 13 yes Figure 12 The structural diagram corresponding to the steps in the reference Figure 12 and Figure 13 In some optional embodiments, forming a bending protection layer and an anti-sticking layer on one side of the bending area in step S20 includes:

[0074] Step S23, coating a bending protection layer material on one side of the bending area to form a bending protection layer intermediate;

[0075] Step S24, dot-coating the bending protection layer material at both ends of the bending protection layer intermediate body along a first direction to form a dam, wherein the first direction intersects with the arrangement direction of the bending area and the display area;

[0076] Step S25, coating a release layer material on the surface of the curved protective layer intermediate away from the flexible display panel and inside the dam to form a release layer intermediate;

[0077] Step S26 , curing the bending protection layer intermediate and the anti-sticking layer intermediate simultaneously to form the bending protection layer and the anti-sticking layer respectively.

[0078] refer to Figure 13 Corresponding to steps S23-S26, after applying a bending protection layer material to one side of the bending area BA2 to form a bending protection layer intermediate, the bending protection layer material is then applied to both ends of the bending protection layer intermediate along a first direction X, forming dams 21. The first direction X intersects the alignment of the bending area BA2 and the display area AA. The surface of the bending protection layer intermediate facing away from the flexible display panel and the two dams 21 form a housing space, facilitating the application of a release layer material to the surface of the bending protection layer intermediate facing away from the flexible display panel and within the dams 21 to form the release layer intermediate. The release layer intermediate can then be placed within the housing space. The bending protection layer intermediate and the release layer intermediate can then be cured simultaneously to form the bending protection layer and release layer 30, respectively.

[0079] Step S27: removing the dam.

[0080] For details, please refer to the structural diagram after removing the surrounding dam. Figure 9After coating a bending protective layer material on one side of the bending area BA2 to form a bending protective layer intermediate, the bending protective layer material can be coated on both ends of the bending protective layer intermediate along the first direction X to form a dam. The surface of the bending protective layer intermediate away from the flexible display panel 10 and the two dams form a accommodating space for arranging the anti-sticking layer intermediate. The anti-sticking layer intermediate will not be lost, so that the bending protective layer intermediate and the anti-sticking layer intermediate can be cured simultaneously to form the bending protective layer 20 and the anti-sticking layer 30 respectively, thereby reducing one curing process and reducing the process steps, which is conducive to reducing production costs.

[0081] like Figure 14 As shown, Figure 14 is a planar schematic diagram of a display device provided by the present disclosure. An embodiment of the present disclosure further provides a display device 1000 , comprising the display module 100 provided by any of the above embodiments. Figure 14 The embodiments provided only use mobile phones as an example to illustrate the display device. It can be understood that the display device provided in the embodiments of the present disclosure can be any electronic product with a display function, including but not limited to the following categories: mobile phones, televisions, laptops, desktop monitors, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc. The embodiments of the present disclosure do not specifically limit this.

[0082] The display device 1000 provided in the embodiment of the present disclosure has the same technical features as the display module 100 provided in the above embodiment, and therefore can also solve the same technical problems and achieve the same technical effects.

[0083] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0084] The foregoing description is intended only to provide specific embodiments of the present disclosure, intended to enable those skilled in the art to understand and implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not intended to be limited to the embodiments described herein, but rather to be construed in the broadest manner consistent with the principles and novel features disclosed herein.

Claims

1. A display module, characterized in that: include: A flexible display panel, comprising a display area, a binding area, and a bending area between the display area and the binding area; a bending protection layer, the bending protection layer being located on the light-emitting side of the flexible display panel and at least partially covering the bending area; an anti-sticking layer, the anti-sticking layer covering at least a portion of a surface of the curved protective layer away from the flexible display panel, the surface energy of the anti-sticking layer being less than the surface energy of the curved protective layer; A cover plate covers the display area and is located on a side of the anti-sticking layer away from the flexible display panel, wherein a vertical projection of the cover plate on the flexible display panel partially overlaps with a vertical projection of the anti-sticking layer on the flexible display panel.

2. The display module according to claim 1, wherein: An overlapping portion of the cover plate and the curved protective layer in a vertical projection of the flexible display panel is located within the vertical projection of the anti-sticking layer on the flexible display panel.

3. The display module according to claim 2, wherein: The anti-sticking layer completely covers a surface of the bending protection layer away from the flexible display panel.

4. The display module according to claim 1, wherein: The material of the anti-sticking layer is oil or hydrophobic material.

5. The display module according to claim 4, wherein: The material of the anti-sticking layer is silicone oil or organic fluorine material.

6. The display module according to claim 1, wherein: The display module further includes a polarizer and a protective film, wherein the polarizer is located on a side of the flexible display panel close to the cover plate and covers the display area, and the protective film is located on a side of the polarizer close to the cover plate and covers the polarizer; Part of the sidewall of the curved protective layer is in contact with the sidewall of the polarizer and the sidewall of the protective film; Part of the sidewall of the release layer contacts the sidewall of the protection film.

7. The display module according to claim 6, wherein: The sum of the thickness of the bending protection layer and the thickness of the anti-sticking layer is less than the sum of the thickness of the polarizer and the thickness of the protective film.

8. The display module according to claim 1, wherein: The thickness of the anti-sticking layer is smaller than that of the bending protection layer.

9. A method for manufacturing a display module, characterized in that: include: Providing a flexible display panel, the flexible display panel comprising a display area and a binding area, and a bending area located between the display area and the binding area; forming a bending protection layer and an anti-sticking layer on one side of the bending area, wherein the bending protection layer is located on the light-emitting side of the flexible display panel, and the anti-sticking layer covers at least a portion of a surface of the bending protection layer away from the flexible display panel, wherein the surface energy of the anti-sticking layer is less than the surface energy of the bending protection layer; A cover plate is provided and attached to one side of the flexible display panel. The cover plate covers the display area and is located on the side of the anti-sticking layer away from the flexible display panel. The vertical projection of the cover plate on the flexible display panel overlaps with the vertical projection of the anti-sticking layer on the flexible display panel.

10. The method for manufacturing a display module according to claim 9, wherein: The forming of a bending protection layer and an anti-sticking layer on one side of the bending area comprises: Coating a bending protection layer material on one side of the bending area to form a bending protection layer intermediate, and curing the bending protection layer intermediate to form the bending protection layer; A release layer material is coated on a surface of the curved protective layer away from the flexible display panel to form a release layer intermediate, and the release layer intermediate is cured to form the release layer.

11. The method for manufacturing a display module according to claim 9, wherein: The forming of a bending protection layer and an anti-sticking layer on one side of the bending area comprises: Coating a bending protection layer material on one side of the bending area to form a bending protection layer intermediate; The curved protective layer material is applied to both ends of the curved protective layer intermediate body along a first direction to form a dam, wherein the first direction intersects with the arrangement direction of the bending area and the display area; coating a release layer material on a surface of the curved protective layer intermediate away from the flexible display panel and inside the dam to form the release layer intermediate; curing the bending protection layer intermediate and the anti-sticking layer intermediate simultaneously to form the bending protection layer and the anti-sticking layer respectively; The dam is removed.

12. A display device, characterized in that: The display device comprises the display module according to any one of claims 1 to 8.

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