Display module, manufacturing method thereof and display device

Abstract

The invention relates to a display module, a manufacturing method thereof and a display device. The display module comprises a display panel, the display panel comprises a first flat unfolding part, a bending part and a second flat unfolding part, the first flat unfolding part is provided with a light emitting side and a backlight side, the backlight side of the first flat unfolding part and the second flat unfolding part are oppositely arranged, and the first flat unfolding part and the second flat unfolding part are connected through the bending part; the back film comprises a first back film, and the first back film is attached to the face, opposite to the first flat part, of the second flat part; the supporting structure layer is arranged on the backlight side of the first flattening part, a containing groove is formed in the face, away from the first flattening part, of the supporting structure layer, the containing groove is located in the edge, close to the bent part, of the supporting structure layer and extends in the first direction, and at least part of the first back film is located in the containing groove; an included angle is formed between the second flattening part and the first direction, the included angle is larger than 0 degree and smaller than or equal to 30 degrees, and the first direction is the direction from the bending part to the supporting structure layer. The display module is thin in thickness and high in use reliability.

Description

Technical Field

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

[0002] Currently, in the field of display device manufacturing, a curved display panel is commonly used to achieve ultra-narrow bezel displays in display modules. Furthermore, existing display panels typically reduce the thickness of the display module by reducing the thickness of the backing film, which can reduce the reliability of the display module.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Summary of the Invention

[0004] The present disclosure aims to provide a display module, a manufacturing method thereof, and a display device. The display module is thin and has high reliability.

[0005] One aspect of the present disclosure provides a display module, comprising:

[0006] The display panel includes a first flat portion, a bent portion, and a second flat portion, wherein the first flat portion has a light-emitting side and a backlight side, and the backlight side of the first flat portion is arranged opposite to the second flat portion, and the first flat portion and the second flat portion are connected by the bent portion;

[0007] A backing film, comprising a first backing film, wherein the first backing film is attached to a side of the second flat portion opposite to the first flat portion;

[0008] a supporting structure layer disposed on the backlight side of the first flat portion, wherein a receiving groove is provided on a side of the supporting structure layer facing away from the first flat portion, the receiving groove being located in the supporting structure layer near an edge of the bent portion and extending along a first direction, and at least a portion of the first back film being located in the receiving groove;

[0009] There is an included angle between the second flat portion and the first direction, the included angle is greater than 0° and less than or equal to 30°, and the first direction is the direction in which the bent portion points to the supporting structure layer.

[0010] In an exemplary embodiment of the present disclosure, the supporting structure layer includes:

[0011] The first supporting portion comprises: a first adhesive layer and a first supporting layer, wherein the first adhesive layer is disposed on the backlight side of the first flat portion, and the first supporting layer is attached to a side of the first adhesive layer facing away from the first flat portion;

[0012] The second supporting portion comprises: a second adhesive layer and a second supporting layer, wherein the second adhesive layer is provided on the backlight side of the first flat portion, and the second supporting layer is attached to a side of the second adhesive layer facing away from the first flat portion;

[0013] Particularly, a side of the first supporting layer facing away from the first flat portion has a first distance from the first flat portion in the second direction, and a side of the second supporting layer facing away from the first flat portion has a second distance from the first flat portion in the second direction, and the second distance is smaller than the first distance to form the accommodating groove; the second direction is the direction in which the supporting structure layer points to the first flat portion.

[0014] In an exemplary embodiment of the present disclosure, the second supporting layer includes:

[0015] an isolation layer attached to a side of the first adhesive layer facing away from the first flat portion;

[0016] The third adhesive layer is provided on a side of the isolation layer away from the first flat portion, and is used for bonding the first backing film and the isolation layer.

[0017] In an exemplary embodiment of the present disclosure, the thickness of the third adhesive layer gradually increases along the first direction, so that the second flat portion has the angle with the first direction.

[0018] In an exemplary embodiment of the present disclosure, the thickness of the third adhesive layer is uniform everywhere, and the thickness of the first backing film gradually increases along the first direction, so that the second flat portion has the angle with the first direction.

[0019] In an exemplary embodiment of the present disclosure, the display module further includes:

[0020] A connecting portion connects the second flat portion, the first backing film and the first supporting portion.

[0021] In an exemplary embodiment of the present disclosure, the connecting portion includes:

[0022] The fourth adhesive portion is located at least between the first backing film and the first supporting portion.

[0023] In an exemplary embodiment of the present disclosure, the connecting portion includes:

[0024] The connecting film is located on the side of the second flat portion away from the first flat portion and the side of the first supporting portion away from the first flat portion, and is at least located in the edge area of ​​the second flat portion close to the first supporting portion and the edge area of ​​the first supporting portion close to the second flat portion.

[0025] In an exemplary embodiment of the present disclosure, the angle is greater than 0° and less than or equal to 5°.

[0026] In an exemplary embodiment of the present disclosure, the isolation layer is made of metal.

[0027] A second aspect of the present disclosure provides a method for manufacturing a display module, comprising:

[0028] A display panel is provided, the display panel having a first flat portion, a bent portion, and a second flat portion, the first flat portion having a light-emitting side and a backlight side, the backlight side of the first flat portion being arranged opposite to the second flat portion, and the first flat portion and the second flat portion being connected by the bent portion;

[0029] attaching a first backing film to a surface of the second flat portion opposite to the first flat portion;

[0030] A supporting structure layer is provided on the backlight side of the first flat portion, and a side of the supporting structure layer facing away from the first flat portion has a receiving groove;

[0031] Disposing at least a portion of the first backing film in the receiving groove, and making an angle between the second flat portion and the first direction;

[0032] The accommodating groove is located in the supporting structure layer near the edge of the bending portion and extends along the first direction. The angle is greater than 0° and less than or equal to 30°. The first direction is the direction in which the bending portion points to the supporting structure layer.

[0033] A third aspect of the present disclosure provides a display device, comprising any one of the display modules described above.

[0034] The technical solution provided by the present disclosure can achieve the following beneficial effects:

[0035] The present disclosure provides a display module, which may include a display panel, a back film, and a support structure layer. The display panel includes a first flat portion, a bent portion, and a second flat portion. The first flat portion has a light-emitting side and a backlight side, and the backlight side of the first flat portion is arranged opposite to the second flat portion. The first flat portion and the second flat portion are connected by the bent portion. With this arrangement, other components of the display module can be arranged on the side of the second flat portion facing away from the first flat portion to save space at the edge of the display panel. This can reduce the width of the display module, thereby enabling the display module to achieve an ultra-narrow bezel display.

[0036] Furthermore, in the display module disclosed herein, the first backing film is attached to the side of the second flat portion opposite the first flat portion, and a receiving groove is provided on the side of the support structure layer facing away from the first flat portion, within which at least a portion of the first backing film can be located. This allows the distance between the first and second flat portions to be closer after bending, and the radius of the bending portion to be smaller, thereby reducing the thickness of the display module and enabling the realization of an ultra-thin display.

[0037] Moreover, since the display module provided by the present disclosure does not reduce the thickness of the back film when achieving ultra-thin display, compared with the prior art, the present disclosure does not have the problem of insufficient adhesion due to insufficient thickness of the back film, and there will be no problem of separation of the back film from the display panel, thereby greatly improving the reliability of the display module.

[0038] In addition, in the display module disclosed herein, the second flat portion forms an angle of 0° to 30° with the first direction. This arrangement avoids stress concentration at the junctions between the first flat portion and the bent portion, and between the second flat portion and the bent portion, which can lead to fracture, thereby further improving the reliability of the display module.

[0039] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0041] Figure 1 A schematic structural diagram of a display module according to an exemplary embodiment of the present disclosure is shown;

[0042] Figure 2 shows a schematic structural diagram of a display module according to another exemplary embodiment of the present disclosure;

[0043] Figure 3 shows a schematic structural diagram of a support structure layer according to an exemplary embodiment of the present disclosure;

[0044] Figure 4 An exemplary embodiment of the present disclosure is shown. Figure 3 Schematic diagram of the structure of the AA section;

[0045] Figure 5shows a structural schematic diagram of a display module according to another exemplary embodiment of the present disclosure;

[0046] Figure 6 shows a structural schematic diagram of a display module according to yet another exemplary embodiment of the present disclosure;

[0047] Figure 7 shows a structural schematic diagram of a display module according to yet another exemplary embodiment of the present disclosure;

[0048] Figure 8 shows a structural schematic diagram of a display module according to yet another exemplary embodiment of the present disclosure;

[0049] Figure 9 shows a schematic structural diagram of a support structure layer according to another exemplary embodiment of the present disclosure;

[0050] Figure 10 Another exemplary embodiment of the present disclosure is shown. Figure 3 Schematic diagram of the structure of the AA section;

[0051] Figure 11 A schematic flow chart of a method for manufacturing a display module according to an exemplary embodiment of the present disclosure is shown.

[0052] Description of reference numerals:

[0053] 1. Display panel; 11. First flat portion; 12. Second flat portion; 13. Bend portion;

[0054] 2. Back film; 21. First back film; 22. Second back film;

[0055] 3. Support structure layer; 31. Accommodating groove; 32. First support portion; 321. First adhesive layer; 322. First support layer; 3221. Support buffer layer; 3222. Heat dissipation layer; 3223. First protective layer; 33. Second support portion; 331. Second adhesive layer; 332. Second support layer; 3321. Isolation layer; 3322. Third adhesive layer; 34. Second protective layer;

[0056] 4. Connecting portion; 41. Fourth adhesive layer; 42. Connecting film;

[0057] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0058] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0059] Although relative terms such as "upper" and "lower" are used in this specification to describe the relationship of one illustrated component to another, these terms are used herein for convenience only, such as in accordance with the orientation of the illustrations in the accompanying drawings. It will be understood that if the illustrated device were flipped upside down, the component described as "upper" would become the component "lower." When a structure is referred to as "on" another structure, this may mean that the structure is integrally formed with the other structure, that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via the other structure.

[0060] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express open-ended inclusion and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.; the terms "first" and "second" etc. are used only as labels and are not intended to limit the quantity of their objects.

[0061] Currently, in the existing technology in this field, in order to achieve a narrow-frame display, a bent display panel is usually used. However, after the display panel is bent, a support structure and a back film need to be set in the middle of the display panel to provide support, cushioning, and fixation. Therefore, the thickness of the display module is usually determined by the support structure and the back film. In order to achieve an ultra-thin display, the existing technology in this field usually reduces the thickness of the back film. However, when the thickness of the back film is reduced, its adhesion is insufficient, which may cause the back film to separate from the display panel, thereby affecting the reliability of the display panel bending.

[0062] In response to this, the inventors of the present disclosure discovered the defects in the above-mentioned prior art and spent a lot of time and creative work to finally invent a new display module that is thinner and more reliable in use.

[0063] like Figures 1 to 10As shown, the display module provided by the present disclosure may include: a display panel 1, a back film 2 and a support structure layer 3. The display panel 1 may include a first flat portion 11, a bent portion 13 and a second flat portion 12. The first flat portion 11 may have a light-emitting side and a backlight side, and the backlight side of the first flat portion 11 is arranged opposite to the second flat portion 12. The first flat portion 11 and the second flat portion 12 may be connected by the bent portion 13. The back film 2 may include a first back film 21. The first back film 21 may be attached to a side of the second flat portion 12 opposite to the first flat portion 11. The support structure layer 3 may be arranged on the backlight side of the first flat portion 11. A receiving groove 31 may be provided on a side of the support structure layer 3 facing away from the first flat portion 11. The receiving groove 31 may be located in the support structure layer 3 near the edge of the bent portion 13 and extend along the first direction X. At least a portion of the first back film 21 may be located in the receiving groove 31. The second flat portion 12 may have an angle with the first direction X, and the angle α may be greater than 0° and less than or equal to 30°, for example, 1°, 5°, 10°, 20°, 30°, etc. The first direction X may be the direction in which the bent portion 13 points toward the supporting structure layer 3 .

[0064] It should be noted that, the at least part of the first back film 21 mentioned here can be located in the receiving groove 31 means that the first back film 21 can be partially located in the receiving groove 31, or the first back film 21 can be entirely located in the receiving groove 31, or the first back film 21 is entirely located in the receiving groove 31 and part of the second flat portion 12 is also located in the receiving groove 31, or the first back film 21 and the second flat portion 12 are all located in the receiving groove 31.

[0065] The present disclosure provides a display module, wherein the display panel 1 includes a first flat portion 11, a bent portion 13, and a second flat portion 12. The first flat portion 11 has a light-emitting side and a backlight side, and the backlight side of the first flat portion 11 is disposed opposite the second flat portion 12. The first flat portion 11 and the second flat portion 12 are connected by the bent portion 13. With this arrangement, other components of the display module can be placed on the side of the second flat portion 12 facing away from the first flat portion 11, thereby saving space at the edge of the display panel 1. This can reduce the width of the display module, thereby enabling the display module to achieve an ultra-narrow bezel display.

[0066] Furthermore, in the display module of the present disclosure, the first backing film 21 is attached to the side of the second flat portion 12 opposite the first flat portion 11. A receiving groove 31 is provided on the side of the support structure layer 3 facing away from the first flat portion 11. At least a portion of the first backing film 21 can be positioned within this receiving groove 31. This reduces the distance between the first flat portion 11 and the second flat portion 12 after bending, and reduces the radius R of the bent portion 13, thereby reducing the thickness of the display module and enabling an ultra-thin display.

[0067] Moreover, since the display module provided by the present disclosure does not reduce the thickness of the back film 2 when realizing ultra-thin display, the present disclosure will not have the problem of insufficient adhesion due to insufficient thickness of the back film 2 compared to the prior art, and there will be no problem of separation of the back film 2 from the display panel 1, thereby greatly improving the reliability of the display module.

[0068] In addition, in the display module of the present disclosure, the second flat portion 12 forms an angle α with the first direction X ranging from 0° to 30°. This configuration allows the second flat portion 12 to tilt away from the first flat portion 11, resulting in the curved portion 13 being an ellipse instead of a semicircle. This shifts the stress concentration area generated by the display panel 1 after bending, and avoids occurring at the junction of the first flat portion 11 and the curved portion 13, or at the junction of the second flat portion 12 and the curved portion 13. This prevents fractures caused by stress concentration at the junctions of the first flat portion 11 and the curved portion 13, and at the junctions of the second flat portion 12 and the curved portion 13, thereby further improving the reliability of the display module. Furthermore, it prevents excessive tilting of the second flat portion 12, which would increase the thickness of the entire display module.

[0069] In one embodiment of the present disclosure, the display panel 1 may be a flexible display panel 1 to facilitate bending, and may be an OLED display panel 1, an LED display panel 1, or the like.

[0070] The light-emitting side of the first flat portion 11 may not fill the entire first flat portion 11, that is, it is understandable that the first flat portion 11 may also have a luminous area and a non-luminous area, wherein the luminous area may have a light-emitting side. The present disclosure does not limit the first flat portion 11, that is, the first flat portion 11 may be fully luminous or partially luminous, and this can be selected according to actual conditions. At the same time, when the first flat portion 11 of the present disclosure has a luminous area and a non-luminous area, the present disclosure does not limit the proportion of the luminous area and the non-luminous area of ​​the first flat portion 11, which can also be selected according to actual needs, all within the scope of protection of the present disclosure.

[0071] It should be noted that the aforementioned arrangement of the backlight side of the first flat portion 11 and the second flat portion 12 relative to each other refers to the state of the display panel 1 provided herein during normal operation. That is, when the display panel 1 is bent, the backlight side of the first flat portion 11 and the second flat portion 12 are relative to each other. When the display panel 1 is not bent, the first flat portion 11 and the second flat portion 12 are coplanar, and in this case, the backlight side of the first flat portion 11 and the second flat portion 12 are not relative to each other.

[0072] In one embodiment of the present disclosure, the backing film 2 may include a first backing film 21 and a second backing film 22. The first backing film 21 may be attached to the side of the second flat portion 12 opposite the first flat portion 11 to bond and secure the second flat portion 12 and to strengthen the structural strength of the second flat portion 12. The second backing film 22 may be attached to the backlight side of the first flat portion 11 to bond and secure the first flat portion 11 and to strengthen the structural strength of the first flat portion 11.

[0073] In one embodiment of the present disclosure, Figures 1 to 10 As shown, the support structure layer 3 can be used to support the first flat portion 11 and the second flat portion 12. Furthermore, the support structure layer 3 can absorb external forces, thereby cushioning the first flat portion 11 and the second flat portion 12 when they are subjected to external forces, thereby preventing damage to the first flat portion 11 and the second flat portion 12 caused by external forces, thereby improving the reliability of the display module.

[0074] In one embodiment, the support structure layer 3 may include a first support portion 32 and a second support portion 33. The first support portion 32 may include a first adhesive layer 321 and a first support layer 322. The first adhesive layer 321 may be disposed on the backlight side of the first flat portion 11, and the first support layer 322 may be attached to the side of the first adhesive layer 321 facing away from the first flat portion 11. The second support portion 33 may include a second adhesive layer 331 and a second support layer 332. The second adhesive layer 331 may be disposed on the backlight side of the first flat portion 11, and the second support layer 332 may be attached to the side of the second adhesive layer 331 facing away from the first flat portion 11.

[0075] The first support layer 322 may have a first distance L1 between the surface facing away from the first flat portion 11 and the first flat portion 11 in the second direction Y. The second support layer 332 may have a second distance L2 between the surface facing away from the first flat portion 11 and the first flat portion 11 in the second direction Y. The second distance L2 may be smaller than the first distance L1, thereby forming the receiving groove 31. It will be understood that in this embodiment, the receiving groove 31 is formed in the area where the second support portion 33 is located. The second direction Y is the direction from the support structure layer 3 toward the first flat portion 11.

[0076] When the back film 2 includes the second back film 22 , the first adhesive layer 321 close to the first flat portion 11 can be attached to the second back film 22 , and the second adhesive layer 331 close to the second flat portion 12 can be attached to the second back film 22 .

[0077] In one embodiment, the first adhesive layer 321 and the second adhesive layer 331 can be the same adhesive layer. In this configuration, the first adhesive layer 321 and the second adhesive layer 331 can be formed simultaneously in a single step, thereby saving time and cost in manufacturing the support structure layer 3. However, the present invention is not limited thereto. The first adhesive layer 321 and the second adhesive layer 331 can also be provided separately, and the selection can be made according to actual needs, which is also within the scope of protection of the present disclosure.

[0078] The material of the first adhesive layer 321 may be, but is not limited to, a mesh adhesive. The material of the first adhesive layer 321 may also be a light-curing adhesive or other adhesive material. The material of the second adhesive layer may be, but is not limited to, a mesh adhesive. The material of the second adhesive layer 331 may also be a light-curing adhesive or other adhesive material.

[0079] In one embodiment, the material of the first adhesive layer 321 and the material of the second adhesive layer 331 can be the same to facilitate the arrangement of the first adhesive layer 321 and the second adhesive layer 331. However, the present invention is not limited thereto. The material of the first adhesive layer 321 and the material of the second adhesive layer 331 can also be different. For example, the material of the first adhesive layer 321 can be grid glue, and the material of the second adhesive layer 331 can be light-curing glue.

[0080] In one embodiment, the first supporting layer 322 may include: a supporting buffer layer 3221 , a heat dissipation layer 3222 and a first protective layer 3223 .

[0081] The support and buffer layer 3221 can be attached to the side of the first adhesive layer 321 facing away from the first flat portion 11 to support the first flat portion 11 and buffer external forces. The material of the support and buffer layer 3221 can be foam, but is not limited to this. The material of the support and buffer layer 3221 can also be other materials and can be selected and configured according to actual needs, which is also within the scope of protection of this disclosure.

[0082] The heat dissipation layer 3222 can be disposed on the side of the support buffer layer 3221 facing away from the first flat portion 11 to dissipate heat generated by the display panel 1. The heat dissipation layer 3222 can be made of a metal material to provide improved heat dissipation performance. For example, the heat dissipation layer 3222 can be made of copper, aluminum, etc., but is not limited thereto. Alternatively, the heat dissipation layer 3222 can be made of a non-metallic material, and the selection and placement of the material can be based on the actual heat generation of the display panel 1 and the application scenario of the display module.

[0083] The first protective layer 3223 may be disposed on a side of the heat dissipation layer 3222 away from the first flat portion 11 to protect the heat dissipation layer 3222 and the supporting buffer layer 3221 and prevent them from being damaged.

[0084] In one embodiment, the second supporting layer 332 may include: an isolation layer 3321 and a third adhesive layer 3322. The isolation layer 3321 may be attached to the side of the first adhesive layer 321 that is away from the first flat layer; the third adhesive layer 3322 may be provided on the side of the isolation layer 3321 that is away from the first flat portion 11, so as to bond the first back film 21 to the isolation layer 3321, thereby preventing the film from falling off between the first back film 21 and the isolation layer 3321. At the same time, by providing the isolation layer 3321, the present disclosure can isolate the first adhesive layer 321 and the third adhesive layer 3322, thereby preventing the first adhesive layer 321 and the third adhesive layer 3322 from interfering with each other. Furthermore, by providing the isolation layer 3321, the first flat portion 11 and the second flat portion 12 can also be supported.

[0085] In one embodiment, the isolation layer 3321 can be made of a metal material, such as copper or aluminum. This configuration can improve the heat dissipation effect of the isolation layer 3321, thereby dissipating heat generated by the display panel 1, thereby further improving the heat dissipation effect of the support structure layer 3 and extending the service life of the display module. However, the isolation layer 3321 can also be made of a non-metallic material, which can be selected and configured according to actual needs.

[0086] In one embodiment, the material of the third adhesive layer 3322 may be a light-curing adhesive, which can improve the bonding strength of the third adhesive layer 3322 and further prevent the first backing film 21 from falling off.

[0087] The third adhesive layer 3322 may be made of ultraviolet light-curing adhesive, because the viscosity of ultraviolet light-curing adhesive is greater than 2000 gf / inch, thereby further improving the bonding strength of the third adhesive layer 3322 and preventing the first backing film 21 from falling off.

[0088] However, the present invention is not limited thereto. The material of the third adhesive layer 3322 may also be other materials with adhesive properties. For example, the material of the third adhesive layer 3322 may also be mesh glue.

[0089] In one embodiment, the second distance L2 can be less than the distance between the surface of the heat dissipation layer 3222 facing away from the first flat portion 11 and the first flat portion 11. This configuration ensures that the receiving groove 31 has sufficient depth to accommodate the first backing film 21 and the second flat portion 12, thereby reducing the radius R of the bent portion 13 and shortening the distance between the first flat portion 11 and the second flat portion 12, thereby further reducing the thickness of the display module.

[0090] like Figures 5 to 8As shown, the thickness of the third adhesive layer 3322 can gradually increase along the first direction X, so that the second flat portion 12 has the aforementioned angle α with the first direction X. Since the third adhesive layer 3322 with a gradually increasing thickness along the first direction X is easier to dispose, such a configuration can reduce the difficulty of manufacturing the display module.

[0091] In another embodiment, Figure 6 As shown, the thickness of the third adhesive layer 3322 can be uniform throughout, and the thickness of the first backing film 21 can gradually increase along the first direction X, so that the second flat portion 12 has the aforementioned angle α with the first direction X. This arrangement, compared to the previous embodiment, allows the first backing film 21 to be closely attached to the first support portion 32, thereby preventing a gap from forming between the first backing film 21 and the first support portion 32 and improving the fixing stability between the first backing film 21 and the supporting structure layer 3.

[0092] In one embodiment of the present disclosure, Figure 7 and Figure 8 As shown, the display module may further include a connecting portion 4. The connecting portion 4 may connect the second flat portion 12 and the first backing film 21 to the first supporting portion 32 to improve the fixing stability of the second flat portion 12 and the first backing film 21, further prevent the second flat portion 12 and the first backing film 21 from separating from the supporting structure layer 3, and further improve the reliability of the display module.

[0093] In one embodiment, the connecting portion 4 may include a fourth adhesive portion. The fourth adhesive portion may be located at least between the first backing film 21 and the first supporting portion 32 to bond the first backing film 21 and the first supporting portion 32. When at least a portion of the second flat portion 12 is also located within the receiving groove 31, the fourth adhesive portion may also be located between the second flat portion 12 and the first supporting portion 32 to bond the second flat portion 12 and the first supporting portion 32.

[0094] The material of the fourth adhesive layer 41 can be a light-curing adhesive, such as a UV-curing adhesive. This configuration can improve the bonding strength of the fourth adhesive layer 41. However, the fourth adhesive layer 41 is not limited thereto and can be made of other adhesive materials, which can be selected based on actual conditions.

[0095] In one embodiment, the connecting portion 4 may include a connecting film 42. The connecting film 42 may be located on a side of the second flat portion 12 facing away from the first flat portion 11 and on a side of the first support portion 32 facing away from the first flat portion 11, and may be located at least at an edge of the second flat portion 12 near the first support portion 32 and at an edge of the first support portion 32 near the second flat portion 12. In this configuration, the connecting film 42 connects the second flat portion 12 and the first support portion 32.

[0096] When only a portion of the first back film 21 is located in the accommodating groove 31, a portion of the first back film 21 is exposed to the outside. At this time, the connecting film 42 can also be bonded to the side of the exposed portion of the first back film 21 close to the first support portion 32, connecting the first back film 21 and the first support portion 32, further improving the connection strength between the second flat portion 12 and the first back film 21 and the first support portion 32.

[0097] The connecting film 42 may be a Mylar film, which has high structural strength, thereby ensuring the connection strength between the second flat portion 12, the first back film 21, and the first support portion 32. However, the connecting film 42 is not limited thereto, and other films may also be used, and this disclosure does not impose further limitations on this.

[0098] In one embodiment, the connecting portion 4 may include both a fourth adhesive layer 41 and a connecting film 42. Specifically, the fourth adhesive layer 41 may be disposed at least between the first backing film 21 and the first support portion 32, and the connecting film 42 may be disposed on both the side of the second flat portion 12 facing away from the first flat portion 11 and the side of the first support portion 32 facing away from the first flat portion 11. This arrangement further enhances the connection strength between the second flat portion 12, the first backing film 21, and the first support portion 32, further preventing separation between the second flat portion 12, the first backing film 21, and the first support portion 32, thereby further improving the reliability of the display module.

[0099] In one embodiment of the present disclosure, the angle α between the second flat portion 12 and the first direction X can be greater than 0° and less than or equal to 5°, for example, 1°, 2°, 3°, 4°, 5°, etc. This configuration can avoid excessively large inclination angles of the second flat portion 12, facilitating the installation of the connecting portion. Furthermore, it can further reduce the thickness of the display module.

[0100] In one embodiment of the present disclosure, Figure 10As shown, the support structure layer 3 may also be provided with a second protective layer 34. The second protective layer 34 may be located on the side of the third adhesive layer 3322 facing away from the first flat portion 11. Furthermore, the side of the second protective layer 34 facing away from the first flat portion 11 is flush with the side of the first protective layer 3223 facing away from the first flat portion 11. When setting the support structure layer 3, it is necessary to first attach the support structure layer 3 to the backlight side of the first flat portion 11. If the side of the support structure layer 3 facing away from the first flat portion 11 is uneven, film marks may easily occur after rolling, thereby affecting the display quality of the display module. Therefore, the display module provided by the present disclosure can make the side of the support structure layer 3 facing away from the first flat portion 11 flat, thereby resolving the problem of film marks easily occurring after rolling and ensuring the display quality of the display module. Furthermore, when the display panel 1 is bent and the first back film 21 and the second flat portion 12 need to be attached, the second protective layer 34 can be removed, exposing the receiving groove 31.

[0101] That is, it can be understood that: the supporting structure layer 3 can have a first state and a second state. When the supporting structure layer 3 needs to be attached to the backlight side of the first flat portion 11, the supporting structure layer 3 can be in the first state, and at this time the supporting structure layer 3 includes the second protective layer 34; when the first back film 21 and the second flat portion 12 after the display panel 1 is bent need to be attached, the supporting structure layer 3 can be in the second state, and at this time the second protective layer 34 is removed.

[0102] The above display module is further supplemented with a specific embodiment below.

[0103] Specifically, such as Figures 1 to 10 As shown, in one embodiment, the thickness of the first backing film 21 can be 0.088mm, and the thickness of the second backing film 22 can be 0.088mm. In the first support portion 32, the thickness of the first adhesive layer 321 can be 0.03mm, the thickness of the supporting buffer layer 3221 can be 0.1mm, the thickness of the heat dissipation layer 3222 can be 0.03mm, and the thickness of the first protective layer 3223 can be 0.05mm. In the second support portion 33, the thickness of the second adhesive layer 331 can be 0.03mm, the thickness of the isolation layer 3321 can be 0.02mm, and the thickness of the third adhesive layer 3322 can be 0.01mm. The thickness of the second protective layer 34 can be 0.1mm. This configuration can make the radius R of the bent portion 13 0.13mm, thus achieving the goal of ultra-thinness.

[0104] In another embodiment, the thickness of the isolation layer 3321 on the side close to the bent portion 13 can be 0.08 mm, and the thickness of the isolation layer 3321 on the side away from the bent portion 13 can be 0.15 mm. This configuration allows the thickness of the isolation layer 3321 to gradually increase along the first direction X, and causes the second flat portion 12 to be inclined. This configuration also allows the radius R of the bent portion 13 to be 0.13 mm, thereby achieving an ultra-thin design. It also shifts the stress concentration point to the first flat portion 11 and the bent portion 13, reducing the probability of fracture of the display panel 1 after bending.

[0105] It should be noted that the above embodiments are specifically explained here only by way of examples. In actual design and production, the above values ​​can be changed according to actual needs, which is also within the scope of protection of the present disclosure.

[0106] A second aspect of the present disclosure provides a method for manufacturing a display module. This method can be used to manufacture the display module described above. The display module manufactured using this method is thinner and more reliable.

[0107] like Figures 1 to 11 As shown, the manufacturing method of the display module provided by the present disclosure may include:

[0108] Step S10: providing a display panel 1, wherein the display panel 1 has a first flat portion 11, a bent portion 13, and a second flat portion 12. The first flat portion 11 has a light-emitting side and a backlight side, and the backlight side of the first flat portion 11 is disposed opposite to the second flat portion 12. The first flat portion 11 and the second flat portion 12 are connected by the bent portion 13.

[0109] Step S20: attaching a first backing film 21 to a surface of the second flat portion 12 opposite to the first flat portion 11;

[0110] Step S30: disposing a support structure layer 3 on the backlight side of the first flat portion 11, and providing a receiving groove 31 on a side of the support structure layer 3 facing away from the first flat portion 11;

[0111] Step S40 , disposing at least a portion of the first backing film 21 in the receiving groove 31 , and making an angle α between the second flat portion 12 and the first direction X.

[0112] The receiving groove 31 is located in the supporting structure layer 3 near the edge of the bending portion 13 and extends along the first direction X, with an angle α greater than 0° and less than or equal to 30°. The first direction X is the direction from the bending portion 13 to the supporting structure layer 3.

[0113] It should be noted that, in the specific description of the method for manufacturing the display module, the present disclosure does not repeat the specific structure, materials and technical effects of the display module. The specific structure, materials and technical effects of the display module can refer to the above specific description of the display module.

[0114] The display module manufactured using the display module manufacturing method provided in the present disclosure may include a display panel 1, a back film 2, and a support structure layer 3. The display panel 1 includes a first flat portion 11, a bent portion 13, and a second flat portion 12. The first flat portion 11 has a light-emitting side and a backlight side, and the backlight side of the first flat portion 11 is arranged opposite the second flat portion 12. The first flat portion 11 and the second flat portion 12 are connected by the bent portion 13. With this arrangement, other components of the display module can be placed on the side of the second flat portion 12 facing away from the first flat portion 11, thereby saving space at the edge of the display panel 1. This can reduce the width of the display module, thereby enabling the display module to achieve an ultra-narrow bezel display.

[0115] Furthermore, in the display module produced using the display module manufacturing method provided herein, the first backing film 21 is attached to the side of the second flat portion 12 opposite the first flat portion 11. A receiving groove 31 is provided on the side of the support structure layer 3 facing away from the first flat portion 11, and at least a portion of the first backing film 21 can be positioned within the receiving groove 31. This reduces the distance between the first flat portion 11 and the second flat portion 12 after bending, and reduces the radius R of the bent portion 13, thereby reducing the thickness of the display module and enabling an ultra-thin display.

[0116] Moreover, since the display module produced by the manufacturing method of the display module provided by the present disclosure does not reduce the thickness of the back film 2 when realizing ultra-thin display, the present disclosure will not have the problem of insufficient adhesion due to insufficient thickness of the back film 2 compared to the prior art, and there will be no problem of separation of the back film 2 from the display panel 1, thereby greatly improving the reliability of the display module.

[0117] In addition, in the display module produced by the display module manufacturing method provided in the present disclosure, the second flat portion 12 has an angle α between the first direction X and 0° to 30°. This configuration allows the second flat portion 12 to tilt away from the first flat portion 11, so that the bent portion 13 is no longer a semicircle but an ellipse. In this case, the stress concentration area generated by the display panel 1 after bending is shifted and does not occur at the connection between the first flat portion 11 and the bent portion 13, nor at the connection between the second flat portion 12 and the bent portion 13. This avoids the problem of fracture caused by stress concentration at the connection between the first flat portion 11 and the bent portion 13, and at the connection between the second flat portion 12 and the bent portion 13, thereby further improving the reliability of the display module. Furthermore, it also prevents the second flat portion 12 from tilting too much, which would increase the thickness of the entire display module.

[0118] In one embodiment of the present disclosure, Figure 10 As shown, the support structure layer 3 may also be provided with a second protective layer 34. The second protective layer 34 may be located on the side of the third adhesive layer 3322 facing away from the first flat portion 11. Furthermore, the side of the second protective layer 34 facing away from the first flat portion 11 is flush with the side of the first protective layer 3223 facing away from the first flat portion 11. In step S30, the support structure layer 3 may first be attached to the light-repellent side of the first flat portion 11; the second protective layer 34 may then be removed, leaving the receiving groove 31 on the side of the support structure layer 3 facing away from the first flat portion 11.

[0119] This arrangement allows the side of the support structure layer 3 facing away from the first flat portion 11 to be flat, thereby resolving the issue of film marks easily occurring after rolling and ensuring the display quality of the display module. Furthermore, when the display panel 1 is bent and the first backing film 21 and the second flat portion 12 need to be attached, the second protective layer 34 can be removed, exposing the receiving groove 31.

[0120] It should be noted that although the steps of the display module manufacturing method disclosed herein are described in a specific order in the accompanying drawings, this does not require or imply that the steps must be performed in this specific order, or that all steps must be performed to achieve the desired results. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into a single step, and / or a single step may be broken down into multiple steps.

[0121] A third aspect of the present disclosure provides a display device, which may include the display module described above.

[0122] It should be noted that, in the specific description of the display device, the present disclosure does not repeat the specific structure, materials and technical effects of the display module. The specific structure, materials and technical effects of the display module can refer to the above specific description of the display module.

[0123] Since the display device includes the display module described above, Figures 1 to 10 As shown, the display module described above may include a display panel 1, a back film 2, and a support structure layer 3. The display panel 1 includes a first flat portion 11, a bent portion 13, and a second flat portion 12. The first flat portion 11 has a light-emitting side and a backlight side, and the backlight side of the first flat portion 11 is disposed opposite the second flat portion 12. The first flat portion 11 and the second flat portion 12 are connected by the bent portion 13. With this arrangement, other components of the display module can be placed on the side of the second flat portion 12 facing away from the first flat portion 11, saving space at the edge of the display panel 1. This reduces the width of the display module, enabling the display module and, by extension, the display device to achieve an ultra-narrow bezel display.

[0124] Furthermore, in the display module of the present disclosure, the first backing film 21 is attached to the side of the second flat portion 12 opposite the first flat portion 11. A receiving groove 31 is provided on the side of the support structure layer 3 facing away from the first flat portion 11, and at least a portion of the first backing film 21 can be located within this receiving groove 31. This allows the distance between the first flat portion 11 and the second flat portion 12 to be closer after bending, and the radius R of the bent portion 13 to be smaller, thereby reducing the thickness of the display module. This allows the display module, and thus the display device, to achieve an ultra-thin display.

[0125] Moreover, since the display module provided by the present disclosure does not reduce the thickness of the back film 2 when realizing ultra-thin display, the present disclosure will not have the problem of insufficient adhesion due to insufficient thickness of the back film 2 compared to the prior art, and there will be no problem of separation of the back film 2 from the display panel 1, thereby greatly improving the reliability of the display module and further greatly improving the reliability of the display device.

[0126] In addition, in the display module disclosed herein, the second flat portion 12 forms an angle α with the first direction X ranging from 0° to 30°. This configuration allows the second flat portion 12 to tilt away from the first flat portion 11, resulting in the curved portion 13 being an ellipse instead of a semicircle. This shifts the stress concentration area generated by the display panel 1 after bending, avoiding the junction between the first flat portion 11 and the curved portion 13 or the junction between the second flat portion 12 and the curved portion 13. This prevents fractures caused by stress concentration at the junctions between the first flat portion 11 and the curved portion 13, and between the second flat portion 12 and the curved portion 13, thereby further improving the reliability of the display device. Furthermore, excessive tilting of the second flat portion 12 can be avoided, which would increase the thickness of the entire display device.

[0127] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

Claims

1. A display module, characterized in that: include: The display panel includes a first flat portion, a bent portion, and a second flat portion, wherein the first flat portion has a light-emitting side and a backlight side, and the backlight side of the first flat portion is arranged opposite to the second flat portion, and the first flat portion and the second flat portion are connected by the bent portion; A backing film, comprising a first backing film, wherein the first backing film is attached to a side of the second flat portion opposite to the first flat portion; a supporting structure layer disposed on the backlight side of the first flat portion, wherein a receiving groove is provided on a side of the supporting structure layer facing away from the first flat portion, the receiving groove being located in the supporting structure layer near an edge of the bent portion and extending along a first direction, and at least a portion of the first back film being located in the receiving groove; There is an included angle between the second flat portion and the first direction, the included angle is greater than 0° and less than or equal to 30°, and the first direction is the direction in which the bent portion points to the supporting structure layer.

2. The display module according to claim 1, wherein: The supporting structure layer comprises: The first supporting portion comprises: a first adhesive layer and a first supporting layer, wherein the first adhesive layer is disposed on the backlight side of the first flat portion, and the first supporting layer is attached to a side of the first adhesive layer facing away from the first flat portion; The second supporting portion comprises: a second adhesive layer and a second supporting layer, wherein the second adhesive layer is provided on the backlight side of the first flat portion, and the second supporting layer is attached to a side of the second adhesive layer facing away from the first flat portion; Particularly, a side of the first supporting layer facing away from the first flat portion has a first distance from the first flat portion in the second direction, and a side of the second supporting layer facing away from the first flat portion has a second distance from the first flat portion in the second direction, and the second distance is smaller than the first distance to form the accommodating groove; the second direction is the direction in which the supporting structure layer points to the first flat portion.

3. The display module according to claim 2, wherein: The second supporting layer comprises: an isolation layer attached to a side of the first adhesive layer facing away from the first flat portion; The third adhesive layer is provided on a side of the isolation layer away from the first flat portion, and is used for bonding the first backing film and the isolation layer.

4. The display module according to claim 3, wherein: The thickness of the third adhesive layer gradually increases along the first direction, so that the second flat portion has the angle with the first direction.

5. The display module according to claim 3, wherein: The thickness of the third adhesive layer is uniform everywhere, and the thickness of the first backing film gradually increases along the first direction, so that the second flat portion has the angle with the first direction.

6. The display module according to claim 4 or 5, characterized in that: The display module further includes: A connecting portion connects the second flat portion, the first backing film and the first supporting portion.

7. The display module according to claim 6, wherein: The connecting portion includes: The fourth adhesive portion is located at least between the first backing film and the first supporting portion.

8. The display module according to claim 6, wherein: The connecting portion includes: The connecting film is located on the side of the second flat portion away from the first flat portion and the side of the first supporting portion away from the first flat portion, and is at least located in the edge area of ​​the second flat portion close to the first supporting portion and the edge area of ​​the first supporting portion close to the second flat portion.

9. The display module according to any one of claims 1 to 5, characterized in that: The angle is greater than 0° and less than or equal to 5°.

10. The display module according to any one of claims 3 to 5, characterized in that: The isolation layer is made of metal.

11. A method for manufacturing a display module, characterized in that: include: A display panel is provided, the display panel having a first flat portion, a bent portion, and a second flat portion, the first flat portion having a light-emitting side and a backlight side, the backlight side of the first flat portion being arranged opposite to the second flat portion, and the first flat portion and the second flat portion being connected by the bent portion; attaching a first backing film to a surface of the second flat portion opposite to the first flat portion; A supporting structure layer is provided on the backlight side of the first flat portion, and a side of the supporting structure layer facing away from the first flat portion has a receiving groove; Disposing at least a portion of the first backing film in the receiving groove, and making an angle between the second flat portion and the first direction; The accommodating groove is located in the supporting structure layer near the edge of the bending portion and extends along the first direction. The angle is greater than 0° and less than or equal to 30°. The first direction is the direction in which the bending portion points to the supporting structure layer.

12. A display device, characterized in that: The display device comprises the display module according to any one of claims 1 to 10.

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