Display module and display device

Abstract

The embodiment of the invention discloses a display module and a display device. The display module comprises a display panel; the display panel comprises a display part, a bending part and a binding part, the bending part is connected with the display part and the binding part, and the binding part is bent to the non-light-emitting side of the display panel through the bending part; the display module further comprises a first supporting structure. The first supporting structure comprises a first supporting layer and a second supporting layer, the first supporting layer is located on the side, close to the binding part, of the display part, and the second supporting layer is located on the side, close to the display part, of the binding part; the thickness of the second supporting layer is larger than that of at least part of the first supporting layer. By adopting the technical means, the thickness of the second supporting layer is set to be larger than the thickness of at least part of the first supporting layer, the impact force of the non-light-emitting side of the display panel is buffered and absorbed through the second supporting layer in the binding process, film printing is prevented from being generated in the display module, and then the stability and reliability of the display module are improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of display technology, and in particular to a display module and a display device. Background Art

[0002] With the development of flexible organic light-emitting diode technology, flexible display modules are widely used in mobile phones, wearables and other industries, and the demand for ultra-thinness is becoming stronger and stronger. However, as the product becomes thinner, the module material that protects the display panel needs to be thinner accordingly, resulting in pressure and impact from the back of the display panel, which can cause problems such as film printing and display abnormalities. Summary of the invention

[0003] The embodiment of the present invention provides a display module and a display device, which can buffer and absorb the impact force on the non-light-emitting side of the display panel through a second supporting layer during the binding process, prevent film printing in the display module, and thus improve the stability and reliability of the display module.

[0004] In a first aspect, an embodiment of the present invention provides a display module, including a display panel;

[0005] The display panel comprises a display portion, a bending portion and a binding portion, the bending portion connects the display portion and the binding portion, and the binding portion is bent to the non-light emitting side of the display panel through the bending portion;

[0006] The display module also includes a first supporting structure;

[0007] The first supporting structure comprises a first supporting layer and a second supporting layer, the first supporting layer is located on a side of the display portion close to the binding portion, and the second supporting layer is located on a side of the binding portion close to the display portion;

[0008] The thickness of the second supporting layer is greater than the thickness of at least a portion of the first supporting layer.

[0009] In a second aspect, an embodiment of the present invention further provides a display device, comprising the display module described in the first aspect.

[0010] The technical solution provided by the embodiment of the present invention is that the display module includes a display panel, and the display panel includes a display portion, a bending portion and a binding portion, and the binding portion can be bent to the non-light-emitting side of the display panel through the bending portion. The display module also includes a first supporting structure, and the first supporting structure includes a first supporting layer and a second supporting layer, so that the stability of the overall structure can be ensured by the first supporting layer and the second supporting layer. Furthermore, the thickness of the second supporting layer is greater than the thickness of at least part of the first supporting layer, that is, the thickness of the second supporting layer is relatively large, so that during the binding process, the second supporting layer can buffer and absorb the impact force on the non-light-emitting side of the display panel, thereby reducing film printing and damage to the display panel, which is beneficial to ensuring the stability and reliability of the display module and improving the yield of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A cross-sectional view of a display module in the prior art is shown;

[0012] Figure 2 A schematic plan view of a display panel before being bent provided by an embodiment of the present invention;

[0013] Figure 3 A schematic diagram of the structure of the first display module after being bent provided by an embodiment of the present invention;

[0014] Figure 4 A schematic diagram of the structure of the second display module after being bent provided by an embodiment of the present invention;

[0015] Figure 5 A schematic diagram of the structure of a third display module after being bent provided by an embodiment of the present invention;

[0016] Figure 6 A schematic diagram of the structure of a fourth display module after being bent provided by an embodiment of the present invention;

[0017] Figure 7 A schematic structural diagram of a first second supporting layer provided in an embodiment of the present invention;

[0018] Figure 8 A schematic structural diagram of a second second supporting layer provided in an embodiment of the present invention;

[0019] Fig. 9 A schematic structural diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0021] Before introducing the specific technical solutions of the embodiments of the present invention in detail, the reasons why film prints exist in display modules in the prior art are first introduced in detail.

[0022] Figure 1 FIG. 1 is a schematic diagram of a cross-sectional structure of a display module in the prior art. Figure 1 As shown, the display panel includes a first support structure 200' between the display part 100a' and the binding part 100c', wherein the first support structure 200' includes a first support layer 201' and a second support layer 202'. Generally, the bending radius of the bending part 100b' is 0.2mm, the thickness of the first support layer is 0.088mm, the thickness of the upper and lower adhesive layers of the second support layer 202' can be 0.02mm respectively, and the support layer between the second support layer 202' and the binding part 100c can be the same as the first support layer 201', that is, the thickness can be 0.088mm, so the thickness of the second support layer 202' can be calculated as H=0.2*2-0.088*2-0.02*2=0.184mm, which shows that the thickness of the second support layer is relatively thin, so during the binding process, the second support layer cannot buffer or absorb the impact force on the non-light-emitting side of the display panel, which will produce film prints in the display module, thereby affecting the performance of the display module.

[0023] The embodiment of the present invention can solve the problem of film printing in the display module in the prior art. It should be noted that the following drawings are only for illustrating the technical solution of the embodiment of the present invention, and only show the local structure or local film layer related to the embodiment of the present invention. Other omitted structures or film layers can refer to the structure of the display panel in the prior art, which will not be described in detail here. The technical solution of the embodiment of the present invention is described in detail below.

[0024] Figure 2 A schematic plan view of a display panel before being bent provided by an embodiment of the present invention, Figure 3 This is a schematic diagram of the structure of the first display module after being bent provided by an embodiment of the present invention. Figure 4 A schematic diagram of the structure of a second display module after bending provided by an embodiment of the present invention, as shown in FIG. Figure 2-Figure 4As shown, the display module 10 includes a display panel 100; the display panel 100 includes a display portion 100a, a bending portion 100b and a binding portion 100c, the bending portion 100b connects the display portion 100a and the binding portion 100c, and the binding portion 100c is bent to the non-light-emitting side of the display panel 100 through the bending portion 100b; the display module 10 also includes a first supporting structure 200; the first supporting structure 200 includes a first supporting layer 201 and a second supporting layer 202, the first supporting layer 201 is located on a side of the display portion 100a close to the binding portion 100c, and the second supporting layer 202 is located on a side of the binding portion 100c close to the display portion 100a; the thickness of the second supporting layer 202 is greater than the thickness of at least part of the first supporting layer 201.

[0025] Specifically, the display module 10 includes a display panel 100, and the display panel 100 includes a display unit 100a, which is a display light-emitting unit of the display panel 100. The light-emitting element (not specifically shown in the figure) provided in the display unit 100a is driven to emit light for display, thereby realizing the display function of the display module 10 as a whole. Figure 2-Figure 4 The display panel 100 further includes a bending portion 100b and a binding portion 100c, wherein the bending portion 100b can be bent, and the bending portion 100b drives the binding portion 100c to be placed on the non-light-emitting side of the display panel 100. It should be noted that Figure 2 It is used to show the relative positional relationship between the display portion 100a, the bending portion 100b and the binding portion 100c, and the film layer structure is unfolded and shown without bending the bending portion 100b; Figure 3 and Figure 4 FIG. 1 is a side cross-sectional view showing a partial structure of the module 10 , in which the bent portion 100 b is bent. Figure 3-Figure 4 The bending portion 100b is a bent arc structure, the binding portion 100c is connected to the display portion 100a through the bending portion 100b, and the binding portion 100c is bent to the non-light-emitting side of the display panel 100 through the bending portion 100b, so that the lower frame area in the display module 10 can be reduced and the display screen ratio can be increased. Figure 2 As shown, on the non-light-emitting side of the display panel 100, the binding portion 100c is provided with a plurality of binding terminals (refer to Figure 2 The binding terminals 110 and 120 shown in FIG. 1 are electrically connected to the driving chip 100A and the flexible circuit board 100B, respectively. The signal provided by the driving chip 100A and the signal provided by the flexible circuit board 100B are transmitted to the display panel 100 through the binding terminals, thereby realizing the display function of the display panel 100.

[0026] Specifically, the display module 10 further includes a first support structure 200; the first support structure 200 includes a first support layer 201 and a second support layer 202. The first support layer 201 is located on the side of the display portion 100a close to the binding portion 100c, that is, the first support layer 201 is in contact with the display portion 100a, so that the display portion 100a can be supported by the first support layer 201 to ensure the stability of the display portion 100a structure. The second support layer 202 is located on the side of the binding portion 100c close to the display portion 100a, that is, the second support layer 202 is in contact with the binding portion 100c, so that the binding portion 100c can be supported by the second support layer 202 to ensure the stability of the display module.

[0027] As a comparative example, in the prior art, the thickness of the second supporting layer is relatively thin. When the binding portion 100c is bent to the non-light-emitting side of the display panel through the bending portion 100b, the relatively thin supporting layer thickness cannot fully absorb the pressure generated by the pressing of the binding pressure head during the binding process, resulting in a relatively large impact force on the display panel, thereby generating an indentation or even causing damage to the display panel. In the embodiment of the present invention, the thickness of the second supporting layer 202 is set to be greater than the thickness of at least part of the first supporting layer 201, that is, the thickness of the second supporting layer 202 is relatively large. In this way, when binding is performed, the impact force on the non-light-emitting side of the display panel can be buffered and absorbed by the second supporting layer 202, thereby reducing film printing and damage to the display panel, which is beneficial to ensuring the stability and reliability of the display module and improving the yield of the display module.

[0028] Optional, continue to refer to Figure 2 and Figure 3 , the display module 10 also includes a film structure such as a polarizer 500, an optical glue 600, a cover plate 700 and a protective layer 800. Among them, the polarizer 500, the optical glue 600 and the cover plate 700 are located on the side of the display part 100a away from the binding part 100c, and the protective layer 800 at least covers the bending part 100b. The polarizer 500 is used to reduce the light incident on the display module 10 and then emitted from the display module 10 again, which can reduce the interference of the external ambient light on the light emitted by the display module 10 itself, thereby ensuring the overall display effect of the display module 10. The optical glue 600 is used to bond the overall structure to ensure the overall structural stability of the display module 10. The cover plate 700 and the protective layer 800 are used to protect the structure of the display module 10, thereby ensuring the reliability of the display module 10. For different display modules 10, other film layers can be adaptively added, and the embodiments of the present invention will not be described one by one.

[0029] The display module provided by the embodiment of the present invention sets the thickness of the second supporting layer to be greater than the thickness of at least part of the first supporting layer, that is, the thickness of the second supporting layer is relatively large. In this way, during the binding process, the second supporting layer can buffer and absorb the impact force on the non-light-emitting side of the display panel, thereby reducing film printing and damage to the display panel, which is beneficial to ensuring the stability and reliability of the display module and improving the yield of the display module.

[0030] Optional, continue to refer to Figure 3 and Figure 4 The first supporting layer 201 includes a first supporting section 2011 and a second supporting section 2012; along the thickness direction of the display module (the Z direction as shown in the figure), the first supporting section 2011 and the second supporting layer 202 do not overlap, and the second supporting section 2012 and the second supporting layer 202 at least partially overlap; the thickness of the second supporting layer 202 is at least greater than the thickness of the first supporting section 2011.

[0031] Specifically, Figure 3 As shown, the first support sub-section 2011 and the second support sub-section 2012 may not be integrally arranged, that is, they are independently arranged, which is conducive to realizing personalized arrangement of the first support sub-section 2011 and the second support sub-section 2012, for example, the first support sub-section 2011 and the second support sub-section 2012 may have different materials or thicknesses. Exemplarily, the first support layer 201 may be discontinuous at the aa position, that is, the aa position is a hollow structure, the left side of the aa position may be the first support sub-section 2011, the right side of the aa position may be the second support sub-section 2012, the materials and thicknesses of the first support sub-section 2011 and the second support sub-section 2012 on the left and right sides of the aa position are all different, and after the display panel is bent, the second support layer 202 at least overlaps with the second support sub-section 2012. The thickness of the second supporting layer 202 is at least greater than the thickness of the first supporting section 2011. On the one hand, it can realize diversified settings of the display module. On the other hand, it is conducive to setting a larger thickness for the second supporting layer 202. In the binding process, the impact force on the non-light-emitting side of the display panel is buffered and absorbed by the second supporting layer to prevent film printing and improve the stability and reliability of the display module.

[0032] Specifically, Figure 4As shown, the first support sub-portion 2011 and the second support sub-portion 2012 can be continuously provided as one, that is, the first support sub-portion 2011 and the second support sub-portion 2012 are not separated, so that the preparation method of the first support layer 200 is simple. In the process of bending the display panel, when the binding portion 100c is bent to the non-light-emitting side of the display panel through the bending portion 100b, the second support sub-portion 2012 is bonded to the second support layer 202, and along the thickness direction Z of the display panel, the second support layer 202 and the second support sub-portion 2012 at least partially overlap. The thickness of the second supporting layer 202 is at least greater than the thickness of the first supporting section 2011, that is, the thickness of the first supporting section 202 may be greater than the thickness of the first supporting section 2011, or may be greater than both the thickness of the first supporting section 2011 and the thickness of the second supporting section 2012. By setting the second supporting layer 202 to be thicker, it is beneficial to buffer and absorb the impact force on the non-light-emitting side of the display panel through the second supporting layer 202 during the binding process, thereby reducing film printing and damage to the display panel, which is beneficial to improving the stability and reliability of the display module.

[0033] For example, taking the bending radius of the bending portion 100b as 0.2mm and the thickness of the adhesion layer 2024 as 0.02mm as an example, the thickness of the support body 2021 is H=0.2*2-0.02*4=0.32mm, which is significantly increased compared with the thickness in the prior art. By increasing the thickness of the support body 2021, the support of this area can be effectively improved to prevent film printing under the action of the binding pressure head, thereby improving product yield and performance.

[0034] Optional, continue to refer to Figure 4 The first supporting section 2011 and the second supporting section 2012 are integrally arranged; the thickness of the second supporting layer 202 is greater than the thickness of the first supporting section 2011 and the second supporting section 2012.

[0035] Specifically, the first supporting section 2011 and the second supporting section 2012 are integrally arranged, so that the first supporting section 2011 and the second supporting section 2012 have a better supporting effect on the display panel, and the arrangement of the first supporting layer 201 is simple.

[0036] Furthermore, the first support section 2011 and the second support section 2012 are integrally arranged, and the thickness of the first support section 2011 and the second support section 2012 can be the same, and the thickness of the second support layer 202 is greater than the thickness of the first support section 2011 and the second support section 2012, that is, the thickness of the second support layer 202 is greater than both the thickness of the first support section 2011 and the thickness of the second support section 2012, and the second support layer 202 has a relatively large thickness. In this way, during the binding process, the impact force on the non-light-emitting side of the display panel can be buffered and absorbed by the second support layer 202, thereby preventing film printing and improving the stability and reliability of the display module.

[0037] Exemplarily, the second supporting layer 202 may include a supporting body 2021 and an adhesion layer 2024 located on both sides of the supporting body. Taking the bending radius of the bending portion 100b as 0.2 mm, the thickness of the adhesion layer 2024 as 0.02 mm, and the thickness of the first supporting layer 201 as 0.088 as an example, the thickness of the supporting body 2021 is H = 0.2*2-0.02*2-0.088 = 0.272 mm, which is increased compared to the thickness of the supporting body in the prior art. In this way, by increasing the thickness of the supporting body 2021, the support of this area can be effectively improved to prevent film printing under the action of the binding pressure head, thereby improving product yield and performance.

[0038] Optional, continue to refer to Figure 3 The first supporting section 2011 and the second supporting section 2012 are independently arranged; the thickness of the second supporting section 2012 is greater than the thickness of the first supporting section 2011 , and the thickness of the second supporting layer 202 is greater than or equal to the thickness of the second supporting section 2012 .

[0039] Specifically, the first support subsection 2011 and the second support subsection 2012 are independently arranged, which is conducive to realizing personalized arrangement of the first support subsection 2011 and the second support subsection 2012, that is, the thickness or material of the two film layers can be different. The thickness of the second support subsection 2012 is greater than the thickness of the first support subsection 2011, and the thickness of the second support layer 202 is greater than or equal to the thickness of the second support subsection 2012, that is, the thickness of the second support layer 202 is greater than the thickness of the second support subsection 2012, or the thickness of the second support layer 202 is equal to the thickness of the second support subsection 2012. In this way, by setting the thickness of the second support subsection 2012 and the second support layer 202 to be larger, it is conducive to further buffering and absorbing the impact force on the non-light-emitting side of the display panel during the binding process, preventing the generation of film prints, and further improving the stability and reliability of the display module.

[0040] Optional, continue to refer to Figure 3, the thickness of the second supporting layer 202 is equal to the thickness of the second supporting section 2012 .

[0041] Specifically, the second supporting layer 202 and the second supporting sub-portion 2012 are arranged in the same manner, that is, before the display panel is bent, the second supporting layer 202 arranged in the binding portion 100c and the second supporting sub-portion 2012 arranged in the corresponding position of the display portion 100a and the binding portion 100c can be of the same structure, except that the two are disconnected in the bending portion 100b, so that the preparation process of the second supporting layer 202 and the second supporting sub-portion 2012 is simple.

[0042] Exemplarily, the second supporting layer 202 and the second supporting section 2012 may both include a supporting body 2021 and adhesive layers 2024 located on the upper and lower sides of the supporting body 2021 , and the adhesive layers 2024 have good adhesive properties to achieve fixation between the second supporting layer 202 and the second supporting section 2012 .

[0043] Optional, continue to refer to Figure 3 and Figure 4 The display module 10 also includes a second supporting structure 300 located on the side of the first supporting layer 201 away from the display part 100a, and the second supporting structure 300 includes a buffer section 301 and a first conductive section 302 stacked in the thickness direction of the display panel; along the thickness direction Z of the display module, the second supporting layer 202 does not overlap with at least part of the film layer in the second supporting structure 30.

[0044] Specifically, the second support structure 300 generally includes a film layer such as foam and copper foil, which is used for support. By setting the second support structure 300, the display module can be further supported, which is conducive to further ensuring the stability and reliability of the display module. The buffer subsection 301 can be understood as foam or other flexible structures. The buffer subsection 301 can buffer the impact force or stress on the display module 10. The first conduction subsection 302 can be copper foil or other structures with good heat conduction or electrostatic conduction effects. On the one hand, the first conduction subsection 302 has a certain hardness to ensure the structural stability of the second support structure 300. On the other hand, the first conduction subsection 302 has thermal conductivity and electrical conductivity, which can transmit heat and conduct static electricity, thereby avoiding the influence of heat and static electricity on the display module 10, thereby ensuring the structural stability and reliability of the display module 10.

[0045] Specifically, along the thickness direction Z of the display module, the second support layer 202 does not overlap with at least part of the film layer in the second support structure 300. As a feasible implementation, the second support layer 202 does not overlap with all the film layers in the second support structure 300, that is, the second support structure 300 is not set at the position corresponding to the second support layer 202, so that the second support structure 300 will not occupy the thickness of the second support layer 202, which is conducive to setting a larger thickness of the second support layer 202, and then the impact force on the non-light-emitting side of the display panel can be buffered and absorbed by the second support layer during the binding process to prevent film printing. As another feasible implementation, part of the film layer in the second support subsection 2012 can extend between the second support subsection 2012 and the second support layer 202. Exemplarily, the first transfer section 302 in the second supporting structure 300 can extend to between the second supporting section 2012 and the second supporting layer 202, so that the second supporting layer 202 overlaps with the conduction section and does not overlap with the buffer section. On the one hand, the heat can be further transmitted and static electricity can be conducted through the transfer section overlapping with the second supporting layer 202, thereby avoiding the influence of heat and static electricity on the display module 10, thereby ensuring the structural stability and reliability of the display module 10. On the other hand, the transfer section extending between the second supporting section 2012 and the second supporting layer 202 will not occupy a large thickness of the second supporting layer 202, which can ensure the setting of a large thickness of the second supporting layer 202, and then during the binding process, the impact force on the non-light-emitting side of the display panel can be buffered and absorbed by the second supporting layer to prevent film printing.

[0046] Exemplarily, the buffer section 301 in the second support structure 300 can extend between the second support section 2012 and the second support layer 202, so that the second support layer 202 overlaps with the buffer section, which is beneficial for buffering the impact force or stress exerted on the display module 10 through the buffer section 301 overlapping with the second support layer 202 during the binding process.

[0047] Optional, Figure 5 A schematic diagram of the structure of a third display module after bending provided by an embodiment of the present invention, as shown in FIG. Figure 5 As shown, the display module 10 also includes a second conductive section 400 located between the second supporting section 2012 and the second supporting layer 202; the thermal conductivity coefficient of the second conductive section 400 is greater than the thermal conductivity coefficient of the second supporting section 2012 and the second supporting layer 202, and / or the resistivity of the second conductive section 400 is less than the resistivity of the second supporting section 2012 and the second supporting layer 202.

[0048] Specifically, the second conductive sub-part 400 may be a copper foil or other structure with good heat conduction and / or electrostatic conduction effects, so that the second conductive sub-part 400 can realize heat transmission and / or electrostatic conduction between the second supporting sub-part 2012 and the second supporting layer 202. In addition, the second conductive sub-part 400 has a certain hardness to ensure the stability and reliability of the display module.

[0049] As a feasible implementation mode, the thermal conductivity coefficient of the second conduction division 400 is greater than the thermal conductivity coefficients of the second support division 2012 and the second support layer 202, that is, the thermal conductivity of the second conduction division 400 is better, which is beneficial to realize the heat transfer between the second support division 2012 and the second support layer 202 through the second conduction division 400, thereby improving the performance of the display panel.

[0050] As another feasible implementation, the resistivity of the second conductive section 400 is lower than the resistivity of the second supporting section 2012 and the second supporting layer 202, that is, the second conductive section 400 has a strong electrostatic conduction capability, which is beneficial for conducting static electricity between the second supporting section 2012 and the second supporting layer 202 through the second conductive section 400, thereby improving the performance of the display panel.

[0051] As another feasible implementation, the thermal conductivity coefficient of the second conduction division 400 is greater than the thermal conductivity coefficient of the second support division 2012 and the second support layer 202, and the resistivity of the second conduction division 400 is less than the resistivity of the second support division 2012 and the second support layer 202. In this way, the second conduction division 400 has thermal conductivity and electrical conductivity, can transmit heat and conduct static electricity, thereby avoiding the influence of heat and static electricity on the display module 10, thereby ensuring the structural stability and reliability of the display module 10.

[0052] Optional, Figure 6 A schematic diagram of the structure of a fourth display module after bending provided by an embodiment of the present invention, as shown in FIG. Figure 6 As shown, the second conductive subsection 400 is connected to the first conductive subsection 302 .

[0053] Specifically, the second conduction sub-section 400 is connected to the first conduction sub-section 302, that is, the second conduction sub-section 400 and the first conduction sub-section 302 are integrally arranged, that is, the first conduction sub-section 302 can be extended in the direction of the setting of the bending portion 100b, and the second conduction sub-section 400 is formed at the position overlapping with the second supporting layer 202, so that the first conduction sub-section 302 and the second conduction sub-section 400 are prepared by the same process step, and do not need to be prepared separately, thereby simplifying the process. In addition, since there is a lot of heat and static electricity generated around the driver chip, and the second conduction sub-section 400 is located near the driver chip, by integrally arranging the second conduction sub-section 400 with the first conduction sub-section 302, the heat or static electricity can be conducted to the first conduction sub-section 302 through the second conduction sub-section 400, which is conducive to ensuring that the heat and static electricity in the display module are more uniform, thereby improving the performance of the display module.

[0054] Optional, Figure 7 This is a schematic diagram of the structure of the first second support layer provided in an embodiment of the present invention, and further reference is made to Figure 3 and Figure 7 The second supporting layer 202 includes a supporting body 2021 and heat-conducting particles 2022 disposed in the supporting body 2021 ; the heat conductivity coefficient of the heat-conducting particles 2022 is greater than the heat conductivity coefficient of the supporting body 2021 .

[0055] Specifically, the support body 2021 can support the surrounding film layer during the binding process. During the binding process, by setting the support body 2021, the impact force on the non-light-emitting side of the display panel can be buffered and absorbed, thereby reducing the film printing and damage to the display panel and improving the stability of the display module.

[0056] Furthermore, the heat-conducting particles 2022 are disposed in the support body 2021. The heat conductivity coefficient of the heat-conducting particles 2022 is greater than the heat conductivity coefficient of the support body 2021, so the second support layer 202 can achieve heat transmission through the heat-conducting particles 2022, and then achieve heat dissipation of the heat generated by the surrounding structure, so that the second support layer 202 can ensure the stability of the display module 10 structure while also ensuring the reliability of the display module 10.

[0057] Optional, Figure 8 This is a schematic diagram of the structure of the second second support layer provided in an embodiment of the present invention, and further reference is made to Figure 3 and Figure 8 The second supporting layer 202 includes a supporting body 2021 and conductive particles 2023 disposed in the supporting body 2021 ; the resistivity of the conductive particles 2023 is less than the resistivity of the supporting body 2021 .

[0058] Specifically, the conductive particles 2023 are disposed in the support body 2021. The resistivity of the conductive particles 2023 is less than that of the support body 2021, and the conductive particles 2023 have good conductivity. Therefore, the support body 2021 can realize the extraction of static electricity through the conductive particles 2023, and then realize the extraction of static electricity generated in the surrounding structure. In this way, the support body 2021 can ensure the stability of the display module 10 structure while also ensuring the reliability of the display module 10.

[0059] Optional, continue to refer to Figure 3 and Figure 4 , along the thickness direction Z of the display module, the second supporting portion 2012 covers the second supporting layer 202 .

[0060] Specifically, along the thickness direction Z of the display module, the second support sub-section 2012 covers the second support layer 202, that is, the second support sub-section 2012 needs to cover the second support layer 202 bent to the non-light-emitting side of the display panel. In other words, the area size of the second support layer 202 depends on the size of the binding portion 100c. By setting the second support sub-section 2012 to cover the second support layer 202, it is beneficial for the second support layer 202 to be able to fully contact the second support sub-section 2012 during the binding process, so as to fully buffer and absorb the impact force on the non-light-emitting side of the display panel, prevent film printing, and improve the stability and reliability of the display module.

[0061] Optional, continue to refer to Figure 3 The second supporting layer 202 includes a supporting body 2021 and an adhesive layer 2024 disposed on the surface of the supporting body 2021; the supporting body 2021 includes an organic material.

[0062] Specifically, the support body 2021 is bonded to the second support section 2012 via the adhesive layer 2024 , thereby achieving fixation of the second support layer 202 and the second support section 2012 .

[0063] Specifically, the support body 2021 includes an organic material. Since the organic material can better absorb the pressure generated on the non-light-emitting side during the binding process, it can reduce the impact force on the display panel, prevent film printing, and improve the stability and reliability of the display module. In addition, since organic materials are easier to design with a larger film thickness than inorganic materials, the support body 2021 uses an organic material, which is conducive to ensuring that the thickness of the support body 2021 is larger, so that during the binding process, the impact force on the non-light-emitting side of the display panel can be buffered and absorbed by the support body 2021 with a larger thickness, thereby preventing film printing in the display module.

[0064] For example, the material of the support body 2021 may be polyethylene terephthalate or an organic protective film. For example, the adhesive layer 2024 may be a double-sided adhesive tape.

[0065] In summary, the display module provided by the embodiment of the present invention includes a first supporting structure, and the first supporting structure includes a first supporting layer and a second supporting layer, so that the stability of the overall structure can be ensured. By setting the thickness of the second supporting layer to be greater than the thickness of at least part of the first supporting layer, that is, the thickness of the second supporting layer is relatively large, during the binding process, the second supporting layer can buffer and absorb the impact force on the non-light-emitting side of the display panel, thereby reducing film printing and damage to the display panel, which is beneficial to ensuring the stability and reliability of the display module and improving the yield of the display module.

[0066] Based on the same inventive concept, an embodiment of the present invention further provides a display device, Fig. 9 A schematic diagram of a display device according to an embodiment of the present invention is shown in FIG. Fig. 9 As shown, the display device 1 includes the display module 10 described in any of the above embodiments. Therefore, the display device 1 provided in the embodiment of the present invention has the corresponding beneficial effects in the above embodiments, which will not be repeated here. The display device 1 can be an electronic device such as a mobile phone, a computer, a smart wearable device (for example, a smart watch), and a car display device.

[0067] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display module, characterized in that: including a display panel; The display panel comprises a display portion, a bending portion and a binding portion, the bending portion connects the display portion and the binding portion, and the binding portion is bent to the non-light emitting side of the display panel through the bending portion; The display module also includes a first supporting structure; The first supporting structure comprises a first supporting layer and a second supporting layer, the first supporting layer is located on a side of the display portion close to the binding portion, and the second supporting layer is located on a side of the binding portion close to the display portion; The thickness of the second supporting layer is greater than the thickness of at least a portion of the first supporting layer.

2. The display module according to claim 1, characterized in that: The first support layer includes a first support subdivision and a second support subdivision; Along the thickness direction of the display module, the first supporting section does not overlap with the second supporting layer, and the second supporting section at least partially overlaps with the second supporting layer; The thickness of the second supporting layer is at least greater than the thickness of the first supporting section.

3. The display module according to claim 2, characterized in that: The first supporting subdivision and the second supporting subdivision are integrally arranged; The second supporting layer has a thickness greater than that of the first supporting section and the second supporting section.

4. The display module according to claim 2, characterized in that: The first supporting subdivision and the second supporting subdivision are independently arranged; The thickness of the second supporting section is greater than the thickness of the first supporting section, and the thickness of the second supporting layer is greater than or equal to the thickness of the second supporting section.

5. The display module according to claim 4, characterized in that: The thickness of the second supporting layer is equal to the thickness of the second supporting section.

6. The display module according to claim 2, characterized in that: The display module further comprises a second supporting structure located on a side of the first supporting layer away from the display portion, the second supporting structure comprising a buffering sub-section and a first conducting sub-section stacked in a thickness direction of the display panel; Along the thickness direction of the display module, the second supporting layer does not overlap with at least a portion of the film layer in the second supporting structure.

7. The display module according to claim 6, characterized in that: The display module further includes a second conductive sub-section located between the second supporting sub-section and the second supporting layer; The thermal conductivity of the second conductive subsection is greater than the thermal conductivity of the second supporting subsection and the second supporting layer, and / or the electrical resistivity of the second conductive subsection is less than the electrical resistivity of the second supporting subsection and the second supporting layer.

8. The display module according to claim 7, characterized in that: The second conductive subsection is connected to the first conductive subsection.

9. The display module according to claim 1, characterized in that: The second supporting layer comprises a supporting body and heat-conducting particles arranged in the supporting body; The thermal conductivity of the thermally conductive particles is greater than the thermal conductivity of the supporting body.

10. The display module according to claim 1, characterized in that: The second supporting layer includes a supporting body and conductive particles disposed in the supporting body; The resistivity of the conductive particles is lower than the resistivity of the support body.

11. The display module according to claim 2, characterized in that: Along the thickness direction of the display module, the second supporting section covers the second supporting layer.

12. The display module according to claim 1, characterized in that: The second supporting layer comprises a supporting body and an adhesive layer arranged on the surface of the supporting body; The support body shown comprises an organic material.

13. A display device, characterized in that: A display module comprising any one of claims 1-12.

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