Display module and display device

Abstract

The present disclosure relates to a display module. The display module comprises a display panel, and in a first direction, the display panel comprises a display area, a bending area and a binding area, wherein the bending area can be bent to bend the binding area to a backlight side of the display area, and when the bending area is in a bending state, a heat dissipation functional layer is provided between the display area and the binding area, and a first rigid supporting layer is provided between the heat dissipation functional layer and the binding area. The present disclosure further relates to a display device.

Description

Display module and display device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No.: 202310921011.2 filed in China on July 25, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to the technical field of display product manufacturing, and in particular to a display module and a display device. Background Art

[0004] With the rapid development of display technology, end-users are increasingly inclined to adopt full-screen devices, which requires further improvement in module narrow-frame design capabilities. At the same time, product waterproofness is also a key issue that cannot be ignored.

[0005] Taking mobile phone products as an example, current products will apply waterproof glue between the middle frame of the whole machine and the display module. The waterproof glue will occupy a part of the space of the lower frame, resulting in the product still having a wider frame. To achieve a narrow frame design, the currently proposed solution is to move the waterproof glue forward, flow down through the Panel Tail area (binding area) and then connect with the middle frame. However, although this method can achieve a narrow frame, since the middle frame of the whole machine is in direct contact with the panel, when the whole machine undergoes mechanical strength tests such as dropping, the external force applied to the whole machine will be directly transmitted to the Panel Tail area, causing peeling and deformation of the panel, thus causing the module product to fail.

[0006] Summary of the Invention

[0007] In order to solve the above technical problems, the present disclosure provides a display module and a display device, which solve the problem of how to achieve a narrow frame while ensuring a waterproof function, while increasing the strength of the display module.

[0008] In order to achieve the above-mentioned purpose, the technical solution adopted in the embodiment of the present disclosure is: a display module, including a display panel, in a first direction, the display panel includes a display area, a bending area and a binding area, the bending area can be bent to bend the binding area to the backlight side of the display area, when the bending area is in a bent state, a heat dissipation functional layer is arranged between the display area and the binding area, and a first rigid support layer is arranged between the heat dissipation functional layer and the binding area.

[0009] Optionally, in the second direction, the first rigid support layer has a first central area and first edge areas located on two opposite sides of the first central area, and the orthographic projection of the binding area on the first rigid support layer is located in the first central area;

[0010] In the second direction, the heat dissipation functional layer has a second central area and second edge areas located on two opposite sides of the second central area, and the orthographic projection of the rigid support layer on the heat dissipation functional layer is located in the second central area;

[0011] The second direction is perpendicular to the first direction, and the second direction is perpendicular to the light emitting direction of the display panel.

[0012] Optionally, a side of the heat dissipation functional layer facing the first rigid support layer is arranged in a groove, and a portion of the first rigid support layer is embedded in the groove.

[0013] Optionally, the heat dissipation functional layer includes a metal layer arranged near the binding area, and in the light emitting direction of the display panel, the depth of the groove is less than the thickness of the metal layer.

[0014] Optionally, the heat dissipation functional layer includes a metal layer arranged near the binding area, and a foam layer located on the side of the metal layer away from the binding area. In the light emitting direction of the display panel, the depth of the groove is greater than the thickness of the metal layer, and the depth of the groove is less than or equal to the sum of the thickness of the metal layer and the thickness of the foam layer.

[0015] Optionally, the heat dissipation functional layer includes a stainless steel heat dissipation plate, and in the light emitting direction of the display panel, the depth of the groove is less than or equal to the thickness of the stainless steel heat dissipation plate.

[0016] Optionally, in the second direction, the length of the groove is less than 0.5 mm, the second direction is perpendicular to the first direction, and the second direction is perpendicular to the light emitting direction of the display panel.

[0017] Optionally, the first rigid support layer is a stainless steel support plate.

[0018] Optionally, a second rigid support layer is provided on a side of the binding area away from the display area.

[0019] Optionally, in the second direction, the binding area includes a third central area and third edge areas located on opposite sides of the third central area, and the orthographic projection of the second rigid support layer on the binding area is located in the third central area.

[0020] Optionally, in the second direction, the second rigid support layer includes a fourth central area and fourth edge areas located on opposite sides of the fourth central area, the orthographic projection of the binding area on the second rigid support layer is located in the fourth central area, and an elastic buffer layer is arranged between the fourth edge area and the heat dissipation functional layer.

[0021] Optionally, the orthographic projection of the elastic buffer layer on the heat dissipation functional layer is completely located within the heat dissipation functional layer.

[0022] Optionally, there is a gap between the elastic buffer layer and the second rigid support layer.

[0023] Optionally, the first rigid support layer includes a graphite layer made of graphite material.

[0024] Optionally, a driver IC is provided on a side of the binding area away from the display area, and in the second direction, a gap between the second rigid supporting layer and the driver IC is 20-30 um.

[0025] The present disclosure also provides a display device, comprising the above-mentioned display module and a middle frame located outside the display module, wherein the display module further comprises a cover plate located on the light-emitting side of the display panel;

[0026] A second rigid supporting layer is provided on a side of the binding area away from the display area;

[0027] The cover plate includes a first area exposed from the display panel, the first area includes a first sub-area corresponding to the binding area, and a second sub-area other than the first sub-area, and a first adhesive barrier layer connected to the middle frame is provided on the second sub-area;

[0028] It also includes a second adhesive barrier layer, which is combined with the first adhesive barrier layer to form an annular structure, and the second adhesive barrier layer covers the second rigid support layer, the portion of the binding area exposed from the second rigid support layer, the portion of the first rigid support layer exposed from the binding area, the portion of the heat dissipation functional layer exposed from the first rigid support layer, and part of the cover plate.

[0029] The beneficial effects of the present disclosure are: BRIEF DESCRIPTION OF THE DRAWINGS

[0030] FIG1 is a schematic diagram showing a display module in conventional technology;

[0031] FIG2 is a second schematic diagram showing a display module in conventional technology;

[0032] FIG3 is a third schematic diagram showing a display module in conventional technology;

[0033] FIG4 is a fourth schematic diagram showing a display module in conventional technology;

[0034] FIG5 shows a first schematic diagram of a display module in an embodiment of the present disclosure;

[0035] FIG6 shows a second schematic diagram of a display module in an embodiment of the present disclosure;

[0036] FIG7 shows a third schematic diagram of a display module in an embodiment of the present disclosure;

[0037] FIG8 shows a fourth schematic diagram of a display module in an embodiment of the present disclosure;

[0038] FIG9 shows a fifth schematic diagram of a display module in an embodiment of the present disclosure;

[0039] FIG10 shows a sixth schematic diagram of a display module according to an embodiment of the present disclosure;

[0040] FIG11 shows a seventh schematic diagram of a display module in an embodiment of the present disclosure;

[0041] FIG12 shows a schematic diagram 8 of a display module in an embodiment of the present disclosure;

[0042] FIG13 shows a ninth schematic diagram of a display module according to an embodiment of the present disclosure;

[0043] FIG. 14 shows a tenth schematic diagram of a display module in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0044] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0045] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the usual meanings understood by people with ordinary skills in the field to which this disclosure belongs. The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one", "an" or "the" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0046] Figure 1 shows the conventional assembly of a display module and midframe. During conventional assembly, the edge of the cover plate 1 overlaps the midframe 10, and a waterproof adhesive layer 3 is applied along the inner edge of the overlap. Due to the unique structure, the lower bezel of the display cannot be made smaller in the assembled state (due to the overlap area of ​​the midframe and the minimum adhesive coating area).

[0047] Figure 2 is a schematic diagram of a display module in a conventional narrow-frame display device, and Figure 3 is a schematic diagram of the assembly of the display module and the middle frame in a conventional narrow-frame display device. Compared to the structure in Figure 1 , the waterproof adhesive layer 3 has been moved forward (to the right, as shown in the figure).

[0048] The display panel 2 includes a display area, a bending area and a binding area arranged in sequence along a first direction. When the bending area is in a bent state, the binding area is bent to the backlight side of the display area. Since the waterproof adhesive layer 3 is directly applied to the side of the binding area away from the display area, a part of the waterproof adhesive layer 3 is connected to the binding area, and the other part is connected to other components such as the main board of the whole machine. In this way, the interior (the direction of the components of IC and FPC are arranged on the right side of the waterproof adhesive) will not be corroded by water vapor. However, this solution has a fatal disadvantage, which is specifically that: since the middle frame 10 of the whole machine is directly connected to the binding area of ​​the display panel through the waterproof adhesive layer 3, during the process of the whole machine falling, the forces in all directions to which the middle frame 10 of the whole machine is subjected will be directly transmitted to the display panel through the waterproof adhesive layer 3. Figure 3 shows a force analysis diagram of the display panel when the whole machine falls. At this time, for the convenience of understanding, all forces are orthogonally decomposed into the front pressure Fz received by the display panel and the shear forces Fx and Fy in the horizontal plane. Compared with the traditional non-narrow-border solution (the structure in Figure 1), although the border in Figure 1 is large, the middle frame 10 of the entire machine is connected to the cover 1, so it can have higher strength during the drop of the entire machine; while the display panel in the narrow-border solution will be subjected to the force transmitted by the middle frame, causing the display panel to fail.

[0049] 5-14 , in response to the above-mentioned problems, the technical solution adopted in the embodiment of the present disclosure is: a display module, comprising a display panel, in a first direction (refer to the Y direction in FIG1 ), the display panel comprises a display area 21, a bending area 22 and a binding area 23, the bending area 22 can be bent to bend the binding area 23 to the backlight side of the display area 21, when the bending area 22 is in a bent state, a heat dissipation functional layer 5 is arranged between the display area 21 and the binding area 23, and a first rigid support layer 6 is arranged between the heat dissipation functional layer 5 and the binding area 23.

[0050] In conventional technology, an elastic support layer (refer to the elastic support layer 4 in FIG. 1 to FIG. 4 ) is provided between the heat dissipation functional layer 5 and the binding area 23 to ensure the bending radius of the bending area 22. However, the elastic support layer in conventional technology includes a PET substrate layer and an adhesive layer located on opposite sides of the PET substrate layer. When the binding area 23 of the display panel is subjected to positive pressure (pressure in the light emitting direction of the display panel), the elastic support layer will deform, thereby causing problems such as breakage of the circuit on the binding area 23 of the display panel. In this embodiment, the first rigid support layer 6 is used instead of the elastic support layer. When the binding area 23 of the display panel is subjected to positive pressure, it will not deform, thereby improving the strength of the binding area 23 of the display panel, and the force exerted on the binding area 23 can be transferred to the heat dissipation functional layer 5 instead of the binding area 23 itself being subjected to force, thereby ensuring that the wiring of each film layer in the binding area 23 will not crack (break), thereby improving the overall strength of the display panel and reducing the risk of failure.

[0051] It should be noted that, in this embodiment, the first rigid supporting layer 6 is used to replace the elastic supporting layer in the conventional technology, and the thickness of the entire display device is not increased.

[0052] In the traditional technical solution, an elastic support layer is arranged between the heat dissipation functional layer 5 and the binding area 23 to ensure the bending radius of the bending area 22. However, the elastic support layer in the traditional technology includes a PET substrate layer and an adhesive layer located on opposite sides of the PET substrate layer. The PET substrate and the adhesive layer on opposite sides are integrally formed, and the side of the adhesive layer is flush with the side of the PET substrate layer. After assembly with the binding area 23 of the display panel, the positive projection of the elastic support layer on the binding area 23 needs to be located within the binding area 23, that is, relative to the outer contour of the binding area 23, the elastic support layer should be set inward. Referring to Figure 4, in the process of glue spotting to form a waterproof glue layer, due to the large height difference between the glue spot and the binding area 23, bubbles are easily generated. The bubbles are naturally generated during the process and are uncontrollable, but the existence of the bubbles will expand during the reliability test, thereby bursting the waterproof area and causing waterproof failure. In order to solve the above problem, in this embodiment, in the second direction (refer to the X direction in Figure 1, the second direction is perpendicular to the first direction, and the second direction is perpendicular to the light emitting direction of the display panel), the first rigid support layer 6 is expanded outward so that the edge of the binding area 23, the edge of the first rigid support layer 6, the edge of the heat dissipation functional layer 5 and the edge of the cover plate 1 on the same side form a stepped structure, so that the waterproof glue can be better leveled to the target surface, avoiding the glue point bubbles caused by the glue pulling phenomenon, so that the waterproof glue can better fit the side of the display module to prevent the entry of water vapor. At the same time, this method has a good fitting effect, which helps to avoid the glue pulling phenomenon that causes bubbles to be buried in the glue point, eliminating the reliability risks of the whole assembly of the display device.

[0053] Specifically, referring to FIG8 , in the second direction, the first rigid support layer 6 has a first central area and first edge areas located on opposite sides of the first central area, and the orthographic projection of the binding area 23 on the first rigid support layer 6 is located in the first central area;

[0054] In the second direction, the heat dissipation functional layer 5 has a second central area and second edge areas located on two opposite sides of the second central area, and the orthographic projection of the rigid support layer on the heat dissipation functional layer 5 is located in the second central area;

[0055] The second direction is perpendicular to the first direction, and the second direction is perpendicular to the light emitting direction of the display panel.

[0056] It should be noted that the first rigid support layer 6 is a rigid support structure. The first rigid support layer 6 and the binding area 23 can be connected by an adhesive layer. The adhesive layer can be formed by coating glue or adhering tape. The first rigid support layer 6 and the adhesive layer adopt a split structure. Therefore, the size of the adhesive layer can be set according to actual needs (that is, the size of the adhesive layer and the size of the first rigid support layer 6 can be different). Relative to the binding area 23, when the first rigid support layer 6 is expanded outward, the size of the adhesive layer can be set according to the size of the binding area 23, that is, the adhesive layer can be retracted. While realizing the connection between the first rigid support layer 6 and the binding area 23, it does not affect the outward expansion setting of the first rigid support layer 6.

[0057] 9 to 14 , in an exemplary embodiment, the heat dissipation functional layer 5 is disposed in a groove on a side facing the first rigid support layer 6 , and a portion of the first rigid support layer 6 is embedded in the groove.

[0058] The setting of the groove can accommodate and fix the first rigid support layer 6, and when the whole machine falls, the force exerted on the whole machine will be transmitted to the first rigid support layer 6 through the waterproof glue, and the pressure in the Z direction can be transmitted downward to the heat dissipation functional layer 5 through the first rigid support layer 6, and the shear force exerted will be transmitted to the groove of the heat dissipation functional layer 5 through the first rigid support layer 6. Since the groove has a limiting effect, most of the shear direction force can be absorbed by the limiting effect of the groove, thereby ensuring the strength of the binding area 23.

[0059] The depth of the groove can be set according to actual needs. Several structural forms in this embodiment are introduced below.

[0060] 9 , in an exemplary embodiment, the heat dissipation functional layer 5 includes a metal layer 51 disposed near the binding area 23 , and in the light emitting direction of the display panel, the depth of the groove is less than or equal to the thickness of the metal layer 51 .

[0061] In a specific embodiment, in the light emitting direction of the display panel, the depth of the groove is half of the thickness of the metal layer 51 , but the present invention is not limited thereto.

[0062] In an exemplary embodiment, in the light emitting direction of the display panel, the depth of the groove is 0.015-0.30 mm.

[0063] In an exemplary embodiment, the heat dissipation functional layer 5 includes a metal layer 51 arranged near the binding area 23, and a foam layer 52 located on the side of the metal layer 51 away from the binding area 23. In the light-emitting direction of the display panel, the depth of the groove is greater than the thickness of the metal layer 51, and the depth of the groove is less than or equal to the sum of the thickness of the metal layer 51 and the thickness of the foam layer 52. In Figure 10, in the light-emitting direction of the display panel, the depth of the groove is greater than the thickness of the metal layer 51, and the depth of the groove is less than the sum of the thickness of the metal layer 51 and the thickness of the foam layer 52. In Figure 11, in the light-emitting direction of the display panel, the depth of the groove is greater than the thickness of the metal layer 51, and the depth of the groove is equal to the sum of the thickness of the metal layer 51 and the thickness of the foam layer 52.

[0064] Exemplarily, the heat dissipation functional layer 5 also includes a grid adhesive layer 53 located on the side of the foam layer 52 away from the metal layer 51. When the depth of the groove is equal to the sum of the thickness of the metal layer 51 and the thickness of the foam layer 52, that is, the groove passes through the metal layer 51 and the foam layer 52, the first rigid support layer 6 is in direct contact with the grid adhesive layer 53.

[0065] 12 and 13 , in an exemplary embodiment, the heat dissipation functional layer 5 includes a stainless steel heat dissipation plate, which is connected to the display area 21 of the display panel through an optical adhesive layer 54 or a grid adhesive layer 53 . In the light emitting direction of the display panel, the depth of the groove is less than or equal to the thickness of the stainless steel heat dissipation plate.

[0066] In an exemplary embodiment, in the second direction, the length of the groove is less than 0.5 mm, the second direction is perpendicular to the first direction, and the second direction is perpendicular to the light emitting direction of the display panel.

[0067] In some specific embodiments, in the second direction, the width of the groove is 0.1-0.2 mm, but is not limited thereto.

[0068] In an exemplary embodiment, the first rigid support layer 6 is a stainless steel support plate.

[0069] The stainless steel plate can achieve a supporting effect, enhance the strength of the binding area 23, and avoid deformation when the binding area 23 is subjected to force, thereby preventing the display panel from failing. In addition, the stainless steel support plate has a certain heat dissipation effect, thereby improving the heat dissipation effect.

[0070] 6 to 14 , in an exemplary embodiment, a second rigid supporting layer 7 is provided on a side of the binding area 23 away from the display area 21 .

[0071] The first rigid support layer 6 and the second rigid support layer 7 cooperate with each other to ensure the strength of the upper and lower surfaces of the binding area 23, so that when subjected to external force, the vertical force (positive pressure) is directly transferred to the heat dissipation functional layer 5 on the lower side of the binding area 23, rather than the binding area 23 itself being subjected to force, thereby ensuring that the wiring of each membrane layer in the binding area 23 will not crack, improving the overall strength of the binding area 23, and reducing the risk of failure.

[0072] In an exemplary embodiment, in the second direction, the binding area 23 includes a third central area and third edge areas located on opposite sides of the third central area, and the positive projection of the second rigid support layer 7 on the binding area 23 is located in the third central area.

[0073] By adopting the above-mentioned scheme, the second rigid support layer 7 is retracted relative to the binding area 23. In the second direction, the edge of the second rigid support layer 7, the edge of the binding area 23, the edge of the first rigid support layer 6, the edge of the heat dissipation functional layer 5 and the edge of the cover plate 1 on the same side form a stepped structure. The waterproof glue can be better leveled to the target surface, avoiding glue bubbles caused by glue pulling, so that the waterproof glue can better fit the side of the display module to prevent the entry of water vapor.

[0074] Referring to Figure 14, in an exemplary embodiment, in the second direction, the second rigid support layer 7 includes a fourth central area and fourth edge areas located on opposite sides of the fourth central area, the orthographic projection of the binding area 23 on the second rigid support layer 7 is located in the fourth central area, and an elastic buffer layer 9 is arranged between the fourth edge area and the heat dissipation functional layer 5.

[0075] With the above solution, when the display module is subjected to a positive pressure exceeding a certain range during the whole machine stress process, the binding area 23 will be squeezed toward the elastic buffer layer 9 due to the pressure. At this time, the elastic buffer layer 9 can play a buffering role to ensure the front printing effect.

[0076] Exemplarily, the elastic buffer layer 9 may be foam, but is not limited thereto.

[0077] In an exemplary embodiment, the orthographic projection of the elastic buffer layer 9 on the heat dissipation functional layer 5 is completely located within the heat dissipation functional layer 5 .

[0078] Exemplarily, in the second direction, the edge of the heat dissipation functional layer 5 is exposed outside the elastic buffer layer 9. In the second direction, it is ensured that the edge of the second rigid support layer 7, the edge of the elastic buffer layer 9, the edge of the first rigid support layer 6, the edge of the heat dissipation functional layer 5 and the edge of the cover plate 1 on the same side form a stepped structure, so that the waterproof glue can be better leveled to the target surface, avoiding glue bubbles caused by glue pulling, so that the waterproof glue can better fit the side of the display module to prevent the entry of water vapor.

[0079] In an exemplary embodiment, there is a gap between the elastic buffer layer 9 and the second rigid support layer 7 .

[0080] Exemplarily, the gap is set to 0.01-0.2 mm, which effectively ensures the elastic buffering effect.

[0081] Exemplarily, in the second direction, the length of the second rigid supporting layer 7 exposed from the binding area 23 is 1-2 mm to avoid interference with the assembly of other components.

[0082] It should be noted that, in the embodiment where the elastic buffer layer 9 is provided between the second rigid support layer 7 and the heat dissipation functional layer 5, since the force applied to the binding area 23 is buffered by the elastic buffer layer 9 and transmitted to the heat dissipation functional layer 5 through the elastic buffer layer 9, therefore, in some embodiments, the material of the first rigid support layer 6 can be made of other materials other than stainless steel that can maintain a smooth surface. For example, the first rigid support layer 6 includes a graphite layer made of graphite material.

[0083] It should be noted that the first rigid support layer 6 may include multiple stacked graphite layers to ensure its support strength and avoid deformation.

[0084] In an exemplary embodiment, a driver IC 8 is provided on a side of the binding area 23 away from the display area 21 , and in the second direction, a gap between the second rigid supporting layer 7 and the driver IC 8 is 20-30 μm.

[0085] In an embodiment in which the first rigid support layer 6 includes a graphite layer, since the graphite layer is in direct contact with the metal layer 51 in the heat dissipation functional layer 5, the heat near the driver IC 8 can be better and faster dissipated to the surface of the heat dissipation functional layer 5, thereby reducing the local temperature of the binding area 23 near the driver IC 8.

[0086] The embodiment of the present disclosure further provides a display device, comprising the above-mentioned display module and a middle frame 10 located outside the display module, wherein the display module further comprises a cover plate 1 located on the light-emitting side of the display panel;

[0087] A second rigid support layer 7 is provided on a side of the binding area 23 away from the display area 21;

[0088] The cover plate 1 includes a first area exposed from the display panel, the first area including a first sub-area corresponding to the binding area 23, and a second sub-area other than the first sub-area, wherein a first adhesive barrier layer 31 connected to the middle frame 10 is provided on the second sub-area;

[0089] It also includes a second adhesive barrier layer 32, which together with the first adhesive barrier layer 31 form an annular structure, and the second adhesive barrier layer 32 covers the second rigid support layer 7, the portion of the binding area 23 exposed from the second rigid support layer 7, the portion of the first rigid support layer 6 exposed from the binding area 23, the portion of the heat dissipation functional layer 5 exposed from the first rigid support layer 6 and part of the cover plate 1.

[0090] The first rigid support layer 6 and the second rigid support layer 7 cooperate to enhance the strength of the binding area 23, and when subjected to external force, the vertical force (positive pressure) is directly transferred to the heat dissipation functional layer 5 on the lower side of the binding area 23, rather than the binding area 23 itself being subjected to force, thereby ensuring that the wiring of each membrane layer in the binding area 23 will not crack, improving the overall strength of the binding area 23, and reducing the risk of failure.

[0091] The second adhesive barrier layer 32 and the first adhesive barrier layer 31 together form a ring structure, which can effectively prevent water vapor erosion.

[0092] The second adhesive barrier layer 32 covers the second rigid support layer 7, the portion of the binding area 23 exposed from the second rigid support layer 7, the portion of the first rigid support layer 6 exposed from the binding area 23, the portion of the heat dissipation functional layer 5 exposed from the first rigid support layer 6, and part of the cover plate 1, thereby achieving a narrow frame.

[0093] Exemplarily, the first adhesive barrier layer 31 and the second adhesive barrier layer 32 are made of the same material, which is waterproof glue, but the present invention is not limited thereto.

[0094] Exemplarily, the first bonding barrier layer 31 and the second bonding barrier layer 32 are made of the same material, and both the first bonding barrier layer 31 and the second bonding barrier layer 32 can be formed by water-based glue, solid glue, PSA, Tape, or any combination of supporting and bonding structures, injection molding process, etc.

[0095] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present disclosure, and the present disclosure is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and substance of the present disclosure, and such modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A display module, comprising a display panel, wherein in a first direction, the display panel comprises a display area, a bending area and a binding area, wherein the bending area can be bent to bend the binding area to the backlight side of the display area, wherein: When the bending area is in a bending state, a heat dissipation functional layer is arranged between the display area and the binding area, and a first rigid support layer is arranged between the heat dissipation functional layer and the binding area.

2. The display module according to claim 1, wherein: In the second direction, the first rigid support layer has a first central area and first edge areas located on two opposite sides of the first central area, and the orthographic projection of the binding area on the first rigid support layer is located in the first central area; In the second direction, the heat dissipation functional layer has a second central area and second edge areas located on two opposite sides of the second central area, and the orthographic projection of the rigid support layer on the heat dissipation functional layer is located in the second central area; The second direction is perpendicular to the first direction, and the second direction is perpendicular to the light emitting direction of the display panel.

3. The display module according to claim 1, wherein: The side of the heat dissipation functional layer facing the first rigid support layer is arranged in the groove, and a part of the first rigid support layer is embedded in the groove.

4. The display module according to claim 3, wherein: The heat dissipation functional layer includes a metal layer arranged close to the binding area, and in the light emitting direction of the display panel, the depth of the groove is less than the thickness of the metal layer.

5. The display module according to claim 3, wherein: The heat dissipation functional layer includes a metal layer arranged close to the binding area, and a foam layer located on a side of the metal layer away from the binding area. In the light emitting direction of the display panel, the depth of the groove is greater than the thickness of the metal layer, and the depth of the groove is less than or equal to the sum of the thickness of the metal layer and the thickness of the foam layer.

6. The display module according to claim 3, wherein: The heat dissipation functional layer includes a stainless steel heat dissipation plate, and in the light emitting direction of the display panel, the depth of the groove is less than or equal to the thickness of the stainless steel heat dissipation plate.

7. The display module according to claim 3, wherein: In the second direction, the length of the groove is less than 0.5 mm, the second direction is perpendicular to the first direction, and the second direction is perpendicular to the light emitting direction of the display panel.

8. The display module according to claim 1, wherein: The first rigid support layer is a stainless steel support plate.

9. The display module according to claim 2, wherein: A second rigid supporting layer is disposed on a side of the binding area away from the display area.

10. The display module according to claim 9, wherein: In the second direction, the binding area includes a third central area and third edge areas located on opposite sides of the third central area, and the orthographic projection of the second rigid supporting layer on the binding area is located in the third central area.

11. The display module according to claim 9, wherein: In the second direction, the second rigid support layer includes a fourth central area and fourth edge areas located on opposite sides of the fourth central area, the orthographic projection of the binding area on the second rigid support layer is located in the fourth central area, and an elastic buffer layer is arranged between the fourth edge area and the heat dissipation functional layer.

12. The display module according to claim 11, wherein: The orthographic projection of the elastic buffer layer on the heat dissipation functional layer is completely located in the heat dissipation functional layer.

13. The display module according to claim 11, wherein: There is a gap between the elastic buffer layer and the second rigid supporting layer.

14. The display module according to claim 11, wherein: The first rigid support layer includes a graphite layer made of graphite material.

15. The display module according to claim 9, wherein: A driving IC is arranged on a side of the binding area away from the display area, and in the second direction, a gap between the second rigid supporting layer and the driving IC is 20-30 um.

16. A display device, wherein: A display module comprising any one of claims 1 to 15, and a middle frame located outside the display module, wherein the display module further comprises a cover plate located on a light-emitting side of the display panel; A second rigid supporting layer is provided on a side of the binding area away from the display area; The cover plate includes a first area exposed from the display panel, the first area includes a first sub-area corresponding to the binding area, and a second sub-area other than the first sub-area, and a first adhesive barrier layer connected to the middle frame is disposed on the second sub-area; The second adhesive barrier layer and the first adhesive barrier layer are combined to form an annular structure, and the second adhesive barrier layer covers the second rigid support layer and the binding area. The portion exposed from the second rigid support layer, the portion exposed from the first rigid support layer to the binding area, the portion of the heat dissipation functional layer exposed from the first rigid support layer, and part of the cover plate.

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