Display modules and display devices

Abstract

This invention discloses a display module and a display device, belonging to the field of display technology. The display module includes a display panel and a composite adhesive tape layer, the composite adhesive tape layer including at least a heat dissipation layer. The display panel includes a planar area, multiple curved areas, and multiple corner areas. In the corner areas, the heat dissipation layer includes at least one opening extending along a first direction. The corner area includes a first position and a second position located away from the planar area from the first position. The width of the opening at the first position in the second direction is smaller than the width of the opening at the second position in the second direction, and the second direction is perpendicular to the first direction. The length of the opening in the first direction is H, and at 1 / 2H, the width of the opening in the second direction is D2. The maximum width of the opening in the second direction is D1, where D2 < 0.5D1. The display device includes the above-described display module. This invention can reduce the probability of incomplete bonding and wrinkles during the manufacturing process, improve product yield, and ensure display quality.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically, to a display module and a display device. Background Technology

[0002] As OLED (Organic Light-Emitting Diode) display technology matures, flexible OLED display products are becoming increasingly common. The curved screen design enabled by flexible OLEDs significantly improves screen-to-body ratio, leading to growing consumer demand for flexible OLED curved display modules. Consequently, more and more display devices are adopting curved display panels to increase screen-to-body ratio and provide users with a better visual experience.

[0003] As display modules become increasingly integrated and perform better, they generate more and more heat during operation. Therefore, to address heat dissipation and shielding requirements, a heat-dissipating composite material is often bonded to the display. However, this composite material uses copper foil, which is a metal with high hardness and poor ductility. Consequently, when this composite material is bonded to a curved display, different bonding conditions occur in different areas. For example, during the transition from a flat surface to a curved surface, the film is easily compressed and buckles. The bonded heat-dissipating film can easily separate from the display module, resulting in gaps, wrinkles, and bubbles. This prevents a tight bond, severely impacting the product's bonding yield and appearance. Furthermore, it allows moisture and oxygen to enter the display module through these gaps, potentially causing module failure.

[0004] Therefore, providing a display module and display device that can reduce the probability of false bonding and wrinkles, improve product yield, and ensure display quality is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a display module and a display device to solve the problem of low film bonding yield of curved screens in the prior art, which affects display quality and product appearance.

[0006] This invention discloses a display module, comprising: a display panel and a composite tape layer, the composite tape layer being located on the backlight side of the display panel; the composite tape layer including at least a heat dissipation layer; the display panel including a planar area, multiple curved areas and multiple corner areas, the multiple curved areas being at least partially arranged around the planar area, and the corner areas being arranged at the corners where the curved areas surround the planar area; in the corner area, the heat dissipation layer including at least one opening extending along a first direction; the corner area including a first position and a second position located away from the planar area from the first position, the width of the opening at the first position in the second direction being less than the width of the opening at the second position in the second direction, the second direction being perpendicular to the first direction; the length of the opening in the first direction being H, the width of the opening in the second direction being D2 at 1 / 2H, and the maximum value of the width of the opening in the second direction being D1; wherein, D2 < 0.5D1.

[0007] Based on the same inventive concept, the present invention also discloses a display device, which includes the above-mentioned display module.

[0008] Compared with the prior art, the display module and display device provided by the present invention achieve at least the following beneficial effects:

[0009] The display module provided by this invention can be a curved screen. The display module includes a display panel and a composite tape layer. The display panel is used to achieve the display effect of the display module. The composite tape layer attached to the backlight side of the display panel can provide a certain support for the display panel. The composite tape layer, which includes at least a heat dissipation layer, is attached to the backlight side of the display panel. When the display module is in use, it can dissipate heat from the display panel and shield interference signals to ensure the display quality of the display module. The display panel includes a flat area, multiple curved areas, and multiple corner areas. The multiple curved areas are at least partially arranged around the flat area, and the corner areas are arranged at the corners where the curved areas surround the flat area. In this invention, the heat dissipation layer has at least one opening in the corner area. The opening extends along a first direction and has a structure where the width of the opening is smaller in a second direction the closer it is to the flat area, and larger in a second direction the further it is from the flat area. Furthermore, at half the length of the opening, the width of the opening in the second direction is less than half the maximum width of the opening in the second direction. This causes the width of the opening in the second direction to narrow rapidly in the first direction and along the direction from the corner area to the plane area. The edge of the opening formed by the heat dissipation layer in the corner area is arc-shaped, and the shape of the orthographic projection of the opening on the light-emitting surface of the display module is trumpet-shaped. This prevents the heat dissipation layer in the corner area from being squeezed by forces in different directions when it is bonded to the backlight surface of the display panel. Even if the heat dissipation layer has a large elastic modulus and poor ductility, it can also prevent the heat dissipation layer in the corner area from buckling after being bonded to the display panel. This can prevent wrinkles or bubbles from forming between the heat dissipation layer and the display panel, which is beneficial to improving the bonding yield and reducing the bonding difficulty. Furthermore, after the heat dissipation layer provided by this invention is bonded to the backlight surface of the display panel, the arc-shaped edges of the trumpet-shaped openings in the corner area can follow the curved shape of the corner area, so that the arc-shaped edges of the openings can be merged together as much as possible. This avoids gaps remaining between the arc-shaped edges of the openings after bonding, which would lead to uneven heat dissipation of the display panel in the corner area. In this way, it can effectively ensure the uniformity of heat dissipation of the heat dissipation layer in the corner after the heat dissipation layer is bonded to the display panel, thereby improving the display quality.

[0010] Of course, any product implementing this invention need not necessarily achieve all of the technical effects described above at the same time.

[0011] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0012] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0013] Figure 1This is a schematic diagram of the planar structure of the display module provided in an embodiment of the present invention on the light-emitting surface side of the display panel;

[0014] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure along the A-A' direction;

[0015] Figure 3 yes Figure 1 and Figure 2 A schematic diagram of the planar structure of the composite tape layer before the heat dissipation layer is attached;

[0016] Figure 4 yes Figure 3 A magnified schematic diagram of a portion of the M1 region;

[0017] Figure 5 yes Figure 1 and Figure 2 A schematic diagram of the planar structure after the heat dissipation layer of the composite tape layer is bonded together;

[0018] Figure 6 yes Figure 1 and Figure 2 A schematic diagram of another planar structure of the composite tape layer before the heat dissipation layer is attached;

[0019] Figure 7 yes Figure 6 A magnified schematic diagram of a portion of the M2 region;

[0020] Figure 8 yes Figure 1 and Figure 2 A schematic diagram of another planar structure of the composite tape layer before the heat dissipation layer is attached;

[0021] Figure 9 yes Figure 8 A magnified schematic diagram of a portion of the M3 region;

[0022] Figure 10 This is a schematic diagram of another planar structure of the display module provided in an embodiment of the present invention on the light-emitting surface side of the display panel;

[0023] Figure 11 yes Figure 10 A schematic diagram of the planar structure of the composite tape layer before the heat dissipation layer is attached;

[0024] Figure 12 yes Figure 11 A magnified schematic diagram of a portion of the M4 region;

[0025] Figure 13 This is a schematic diagram of another planar structure of the display module provided in an embodiment of the present invention on the light-emitting surface side of the display panel;

[0026] Figure 14 yes Figure 13 A schematic diagram of the planar structure of the composite tape layer before the heat dissipation layer is attached;

[0027] Figure 15 yes Figure 14 A magnified schematic diagram of a portion of the M5 region;

[0028] Figure 16 yes Figure 10 A schematic diagram of another planar structure of the composite tape layer before the heat dissipation layer is attached;

[0029] Figure 17 yes Figure 16 A magnified schematic diagram of a portion of the M6 ​​region;

[0030] Figure 18 yes Figure 16 Another enlarged schematic diagram of the M6 ​​region;

[0031] Figure 19 yes Figure 16 Another enlarged schematic diagram of the M6 ​​region;

[0032] Figure 20 yes Figure 1 and Figure 2 A schematic diagram of the planar structure of the composite tape layer before the heat dissipation layer is attached;

[0033] Figure 21 yes Figure 20 A partial schematic diagram of the bonding process between the heat dissipation layer and the display panel in the M7 area;

[0034] Figure 22 yes Figure 1 and Figure 2 A schematic diagram of another planar structure of the composite tape layer before the heat dissipation layer is attached;

[0035] Figure 23 yes Figure 1 Another cross-sectional structural diagram along the A-A' direction;

[0036] Figure 24 yes Figure 1 and Figure 23 A schematic diagram of the split planar structure between the composite tape layer and the pre-film layer of the display panel before they are bonded together;

[0037] Figure 25 yes Figure 1 Another cross-sectional structural diagram along the A-A' direction;

[0038] Figure 26 yes Figure 1 and Figure 25A schematic diagram of the planar structure of the first adhesive layer before the composite tape layer is bonded to the display panel;

[0039] Figure 27 yes Figure 1 Another cross-sectional structural diagram along the A-A' direction;

[0040] Figure 28 This is a schematic diagram of another planar structure of the display module provided in an embodiment of the present invention on the light-emitting surface side of the display panel;

[0041] Figure 29 yes Figure 28 A schematic diagram of the planar structure of the composite tape layer before the heat dissipation layer is attached;

[0042] Figure 30 yes Figure 29 A magnified schematic diagram of a portion of the M8 region;

[0043] Figure 31 This is a schematic diagram of the planar structure of the display device provided in an embodiment of the present invention. Detailed Implementation

[0044] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0045] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0046] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0047] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0048] Various modifications and variations can be made to this invention without departing from its spirit or scope, as will be apparent to those skilled in the art. Therefore, this invention is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this invention can be combined with each other without contradiction.

[0049] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0050] Please refer to the reference. Figures 1-5 , Figure 1 This is a schematic diagram of the planar structure of the display module on the light-emitting side of the display panel according to an embodiment of the present invention. Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure along the A-A' direction. Figure 3 yes Figure 1 and Figure 2 A schematic diagram of the planar structure of the composite tape layer before the heat dissipation layer is attached. Figure 4 yes Figure 3 A magnified schematic diagram of a portion of the M1 region. Figure 5 yes Figure 1 and Figure 2 A schematic diagram of the planar structure after the heat dissipation layer of the composite tape layer is bonded (it can be understood that this is for the purpose of clearly illustrating the structure of this embodiment). Figure 1 Transparency filler was applied to clearly illustrate the opening structure of the heat dissipation layer on the backlight side of the display panel. Figure 3 This diagram illustrates the planar structure of the heat dissipation layer before the composite tape layer is bonded to the display panel. Figure 5 (This is a schematic diagram of the planar structure of the heat dissipation layer after the composite tape layer is bonded to the display panel). The display module 000 provided in this embodiment includes: a display panel 20 and a composite tape layer 10. The composite tape layer 10 is located on the backlight surface 20B side of the display panel 20. The composite tape layer 10 includes at least a heat dissipation layer 101.

[0051] The display panel 20 includes a flat area 20A, multiple curved areas 20B, and multiple corner areas 20C. The multiple curved areas 20B are at least partially arranged around the flat area 20A, and the corner areas 20C are arranged at the corners where the curved areas 20B surround the flat area 20A.

[0052] In corner region 20C, heat dissipation layer 101 includes at least one opening 101K, which extends along a first direction F1;

[0053] The corner area 20C includes a first position 20C1 and a second position 20C2 located at the first position 20C1 away from the plane area 20A. The width W1 of the opening 101K at the first position 20C1 in the second direction F2 is smaller than the width W2 of the opening 101K at the second position 20C2 in the second direction F2. The second direction F2 is perpendicular to the first direction F1.

[0054] The length of the opening 101K in the first direction F1 is H. At 1 / 2H, the width of the opening 101K in the second direction F2 is D2. The maximum value of the width of the opening 101K in the second direction F2 is D1; ​​where D2 < 0.5D1.

[0055] Specifically, the display module 000 provided in this embodiment can be a curved screen. The display module 000 includes a display panel 20 and a composite adhesive tape layer 10 located on one side of the backlight surface 20B of the display panel 20. The display panel 20 is used to realize the display effect of the display module 000. The light-emitting surface 20A of the display panel 20 is used to display the image. The light-emitting surface 20A and the backlight surface 20B of the display panel 20 are two opposing surfaces of the display panel 20. A composite tape layer 10 is attached to the backlight surface 20B of the display panel 20. The composite tape layer 10 can be a multi-layer film stacked structure. The composite tape layer 10 can provide a certain support for the display panel 20. The composite tape layer 10 includes at least a heat dissipation layer 101. Due to the increased integration and performance of the display module 000, the heat generated during the operation of the display module 000 is increasing. Therefore, the composite tape layer 10, which includes at least a heat dissipation layer 101, is attached to one side of the backlight surface 20B of the display panel 20. When the display module 000 is in use, it can dissipate heat from the display panel 20 and shield interference signals to ensure the display quality of the display module 000.

[0056] In this embodiment, the display panel 20 can be a curved display panel. Optionally, the display panel 20 can be a four-curved display screen. A four-curved display screen refers to a panel with curved top and bottom sides of the middle screen, which is a flat structure in the middle screen and curved structures on the left and right sides. That is, a four-curved display screen has curved surfaces in the top, bottom, left and right directions. Compared with a double-curved display screen, a four-curved display screen can further improve the screen ratio and enhance the user's visual experience satisfaction. Specifically, the display panel 20 of this embodiment includes a flat area 20A, multiple curved areas 20B, and multiple corner areas 20C. The multiple curved areas 20B are at least partially arranged around the flat area 20A. In this embodiment, the display panel 20 includes four curved areas 20B and four corner areas 20C as an example for illustration. The corner areas 20C are located at the corners where the curved areas 20B surround the flat area 20A. The multiple curved areas 20B include at least a first curved area 20B1 extending along the horizontal direction X and a second curved area 20B2 extending along the vertical direction Y. The intersection of the first curved area 20B1 and the second curved area 20B2 is the corner, which is also the location of the corner area 20C.

[0057] In the prior art, the heat dissipation layer of the composite tape layer is generally made of metal foil such as copper foil. Therefore, the elastic modulus of the heat dissipation layer is generally large, and the thickness is relatively thin with poor ductility. When applying composite tape to the flat, curved, and corner areas of the backlight side of a display panel, different bonding situations will occur in different areas. For example, when the heat dissipation layer is applied to the flat area of ​​the display panel, the heat dissipation layer is subjected to a force in one direction, making bonding very easy. When the heat dissipation layer is applied to the curved area of ​​the display panel, the heat dissipation layer is subjected to a force in two directions after the curved area is bent, making bonding relatively easy. However, when the heat dissipation layer is applied to the corner area of ​​the display panel, because the curved surface in the corner area bends in multiple directions, the heat dissipation layer will be subjected to forces in different directions during bonding. It is easy for the heat dissipation layer with poor extensibility to buckle in the corner area, forming wrinkles or bubbles, making it impossible for the heat dissipation layer in the corner area to bond tightly with the display panel. This not only greatly increases the bonding difficulty but also seriously affects the product yield and appearance, as well as the heat dissipation effect and the display quality in the corner area.

[0058] To address the aforementioned issues, the display module 000 of this embodiment is located in the corner region 20C. The heat dissipation layer 101 has at least one opening 101K, which extends along a first direction F1. This first direction F1 is the direction in which the opening 101K extends. The opening 101K can be understood as an opening structure formed by a recess from the edge of the heat dissipation layer 101 towards its center. The corner region 20C includes a first position 20C1 and a second position 20C2 located at the first position 20C1 away from the planar region 20A. For example, if the second position 20C2 is understood as the edge position of the display panel 000 in the corner region 20C, the first position 20C1 can be understood as any position within the corner region 20C between the second position 20C2 and the planar region 20A. Alternatively, the second position 20C2 can be understood as any other position, provided that the first position 20C1 is located on the side of the second position 20C2 closer to the planar region 20A. Optionally, the first position 20C1 can be a point or a region, and the second position 20C2 can be a point or a region; this embodiment does not impose any limitations. The specific structure of the opening 101K in the corner region 20C of the heat dissipation layer 101 is as follows: the width W1 of the opening 101K at the first position 20C1 in the second direction F2 is smaller than the width W2 of the opening 101K at the second position 20C2 in the second direction F2. The second direction F2 is perpendicular to the first direction F1, so the second direction F2 can be understood as a direction perpendicular to the extension direction of the opening 101K. In this embodiment, the width W1 of the opening 101K at the first position 20C1 in the second direction F2 is smaller than the width W2 of the opening 101K at the second position 20C2 in the second direction F2, resulting in the opening 101K in the corner region 20C of the heat dissipation layer 101 having a structure where the closer to the plane region 20A, the smaller the width of the opening 101K in the second direction F2, and the farther away from the plane region 20A, the larger the width of the opening 101K in the second direction F2. Furthermore, in the opening 101K structure provided in this embodiment, assuming the length of the opening 101K in the first direction F1 (its extension direction) is H, then at 1 / 2H, that is, at half the length of the opening 101K (e.g. Figure 4 At position J2 in the middle, the width of opening 101K in the second direction F2 is D2. D2 is less than half of the maximum width D1 of opening 101K in the second direction F2 (D2 < 0.5D1). Since the width of opening 101K in the second direction F2 is smaller the closer it is to the plane region 20A, the maximum width D1 of opening 101K in the second direction F2 can be understood as the edge position of opening 101K in corner region 20C (i.e., Figure 4The width of the opening 101K at position J1. In this embodiment, the width D2 of the opening 101K in the second direction F2 is less than half of the maximum width D1 of the opening 101K in the second direction F2. This makes the width of the opening 101K in the second direction F2 tend to narrow rapidly in the first direction F1 and along the direction from the corner area 20C to the plane area 20A. As a result, the edge of the opening 101K formed by the heat dissipation layer 101 in the corner area 20C is arc-shaped, and the shape of the orthogonal projection of the opening 101K on the light-emitting surface of the display module 000 is trumpet-shaped.

[0059] When the heat dissipation layer 101 provided in this embodiment is bonded to the backlight surface 20B of the display panel 20, the opening 101K in the corner area 20C of the heat dissipation layer 101 can prevent the heat dissipation layer 101 in the corner area 20C from being squeezed by forces from different directions when bonded to the display panel 20 in the corner area 20C. Even if the heat dissipation layer 101 has a large elastic modulus and poor ductility, it can also prevent the heat dissipation layer 101 in the corner area 20C from buckling after bonding with the display panel 20. This can prevent the formation of wrinkles or bubbles between the heat dissipation layer 101 and the display panel 20, which is beneficial to improving the bonding yield and reducing the bonding difficulty. Furthermore, after the heat dissipation layer 101 provided in this embodiment is bonded to the backlight surface 20B of the display panel 20, the arc-shaped edge of the trumpet-shaped opening 101K in the corner area 20C can follow the curved shape of the corner area 20C, so that the arc-shaped edges of the opening 101K can be merged together as much as possible (e.g., Figure 5 As shown, this design avoids gaps remaining between the arc-shaped edges of the opening 101K after the heat dissipation layer 101 is bonded to the display panel 20 in the corner area 20C, which would cause uneven heat dissipation to the display panel 20 in the corner area 20C. This effectively ensures uniform heat dissipation of the heat dissipation layer 101 in the corner after it is bonded to the display panel 20, thereby improving display quality.

[0060] It is understandable that in related technologies, the heat dissipation layer may have a cross-shaped opening, a V-shaped opening, or other openings of shapes not provided in this embodiment in the corner area. After the heat dissipation layer with cross-shaped or V-shaped openings or other shapes is bonded to the display panel, gaps may still remain between the edges of the openings in the corner area, preventing a tight fit. This results in areas where heat dissipation is insufficient in the corner, or the opening edges may overlap to form wrinkles, leading to uneven heat dissipation. Therefore, although openings are also made in the heat dissipation layer in related technologies, it is impossible to guarantee a high bonding yield and may also fail to guarantee uniform heat dissipation. In the display module 000 of this embodiment, the heat dissipation layer 101 has a trumpet-shaped opening 101K structure in the corner area 20C, which allows the arc-shaped edges of the opening 101K to merge as much as possible after bonding. That is, before bonding, the arc-shaped edges of the opening 101K are splayed (e.g., before bonding). Figure 3 and Figure 4 As shown), after the heat dissipation layer 101 and the display panel 20 are attached, they can be joined together seamlessly (as shown). Figure 5 As shown, the curved edges of the 101K opening will not overlap or have gaps, which can ensure the uniform heat dissipation of the corner area 20C.

[0061] It should be noted that the figures in this embodiment are only illustrative of the structure of the display module 000. In specific implementation, the structure of the display panel 20 and the composite tape layer 10 includes, but is not limited to, this, and may also include other structures. For example, the display panel 20 may include a display function layer, and the composite tape layer 10 may also include film materials other than the heat dissipation layer 101, and may be bonded together with the backlight surface 20B of the display panel 20. For example, the composite tape layer 10 may also include other film layers located between the heat dissipation layer 101 and the backlight surface 20B of the display panel 20, etc., which will not be described in detail in this embodiment.

[0062] In some alternative embodiments, please refer to the references. Figure 1 , Figure 2 , Figure 6 and Figure 7 , Figure 6 yes Figure 1 and Figure 2 A schematic diagram of another planar structure of the composite tape layer before the heat dissipation layer is attached. Figure 7 yes Figure 6 A magnified schematic diagram of a local area in region M2 (it can be understood that...) Figure 6(This is a schematic diagram of the planar structure of the heat dissipation layer before the composite tape layer is attached to the display panel.) In this embodiment, in the corner area 20C, the heat dissipation layer 101 includes a first edge 101K1 and a second edge 101K2 forming an opening 101K; at the intersection of the first edge 101K1 and the second edge 101K2, the heat dissipation layer 101 in the corner area 20C includes a crack prevention opening 30.

[0063] Along the first direction F1, the width W3 of the crack-stopping opening 30 in the second direction F2 gradually increases, and the closer to the plane region 20A, the larger the width W3 of the crack-stopping opening 30 in the second direction F2.

[0064] This embodiment explains that when the heat dissipation layer 101 of the composite tape layer 10 has an opening 101K in the corner area 20C, at the root of the opening 101K, that is, at the intersection of the first edge 101K1 and the second edge 101K2 forming the opening 101K, the heat dissipation layer 101 is also provided with a crack prevention opening 30. The root of the opening 101K (e.g., at the intersection of the first edge 101K1 and the second edge 101K2 forming the opening 101K) Figure 7 The location J3 shown can be understood as the end of the opening 101K with the narrowest width in the second direction F2, or the end of the opening 101K closest to the planar region 20A. The opening 101K and the crack-stopping opening 30 are connected at the root of the opening 101K. Since the opening 101K has a direction in the first direction F1 and along the corner region 20C towards the planar region 20A, the width of the opening 101K in the second direction F2 tends to narrow rapidly. Therefore, the first edge 101K1 and the second edge 101K2 forming the opening 101K are both arc-shaped. The arc-shaped first edge 101K1 and the arc-shaped second edge 101K2 both extend from the edge position of the corner region 20C towards the direction close to the planar region 20A to form the structure of the opening 101K in this embodiment. In this embodiment, the shape of the anti-crack opening 30 can be such that along the first direction F1 (i.e., along the extension direction of the opening 101K), the width W3 of the anti-crack opening 30 in the second direction F2 gradually increases, and the closer to the planar region 20A, the larger the width W3 of the anti-crack opening 30 in the second direction F2 is. This results in the structure that the width W3 of the anti-crack opening 30 in the second direction F2 is larger as it gets closer to the planar region 20A and smaller as it gets closer to the opening 101K. This allows the end of the anti-crack opening 30 away from the opening 101K to have a larger width W3 in the second direction F2, preventing the width W3 of the end of the anti-crack opening 30 away from the opening 101K from decreasing and forming a tendency to continue tearing towards the planar region 20A. This helps to ensure that even if improper force is applied during the bonding process of the heat dissipation layer 101, the possibility of the root of the opening 101K continuing to spread and tear towards the planar region 20A can be reduced, thereby improving the bonding yield of the heat dissipation layer 101 and ensuring product quality.

[0065] In some alternative embodiments, please refer to the references. Figure 1 , Figure 8 and Figure 9 , Figure 8 yes Figure 1 and Figure 2 A schematic diagram of another planar structure of the composite tape layer before the heat dissipation layer is attached. Figure 9 yes Figure 8 A magnified schematic diagram of a portion of the M3 region (it can be understood that...) Figure 8 (This is a schematic diagram of the planar structure of the heat dissipation layer before the composite tape layer is attached to the display panel.) In this embodiment, in the corner area 20C, the heat dissipation layer 101 includes a first edge 101K1 and a second edge 101K2 forming an opening 101K; at the intersection of the first edge 101K1 and the second edge 101K2, the heat dissipation layer 101 in the corner area 20C includes a crack prevention opening 30.

[0066] The crack-stopping opening 30 includes a crack-stopping edge 301. Along the first direction F1, the curvature of the crack-stopping edge 301 gradually increases, and the closer it is to the planar region 20A, the greater the curvature of the crack-stopping edge 301.

[0067] This embodiment explains that when the heat dissipation layer 101 of the composite tape layer 10 has an opening 101K in the corner area 20C, at the root of the opening 101K, that is, at the intersection of the first edge 101K1 and the second edge 101K2 forming the opening 101K, the heat dissipation layer 101 is also provided with a crack prevention opening 30. The root of the opening 101K can be understood as the end of the opening 101K with the narrowest width in the second direction F2, or it can be understood as the end of the opening 101K closest to the plane area 20A. The opening 101K and the crack prevention opening 30 are connected at the root of the opening 101K. Since the opening 101K has a direction in the first direction F1 and points from the corner region 20C to the plane region 20A, the width of the opening 101K in the second direction F2 tends to narrow rapidly. Therefore, the first edge 101K1 and the second edge 101K2 forming the opening 101K are both arc-shaped. The arc-shaped first edge 101K1 and the arc-shaped second edge 101K2 both extend from the edge position of the corner region 20C toward the plane region 20A to form the structure of the opening 101K in this embodiment. In this embodiment, the shape of the anti-crack opening 30 can include an anti-crack edge 301. The anti-crack edge 301 is arc-shaped, and the curvature of the anti-crack edge 301 gradually increases along the first direction F1 (i.e., along the extension direction of the opening 101K). The closer to the plane area 20A, the greater the curvature of the anti-crack edge 301. This makes the arc-shaped anti-crack edge 30K of the anti-crack opening 30 form a C-shaped structure that is concave towards the plane area 20A. This can prevent the end of the anti-crack opening 30 away from the opening 101K from continuing to tear towards the plane area 20A. This helps to ensure that even if improper force is applied during the bonding process of the heat dissipation layer 101, the possibility of the root of the opening 101K continuing to spread and tear towards the plane area 20A can be reduced. This is conducive to improving the bonding yield of the heat dissipation layer 101 and ensuring product quality.

[0068] In some alternative embodiments, please refer to the references. Figures 10-17 , Figure 10 This is a schematic diagram of another planar structure of the display module provided in an embodiment of the present invention on the light-emitting surface side of the display panel. Figure 11 yes Figure 10 A schematic diagram of the planar structure of the composite tape layer before the heat dissipation layer is attached. Figure 12 yes Figure 11 A magnified schematic diagram of a portion of the M4 region. Figure 13 This is a schematic diagram of another planar structure of the display module provided in an embodiment of the present invention on the light-emitting surface side of the display panel. Figure 14 yes Figure 13 A schematic diagram of the planar structure of the composite tape layer before the heat dissipation layer is attached. Figure 15 yes Figure 14 A magnified schematic diagram of a portion of the M5 region. Figure 16 yes Figure 10A schematic diagram of another planar structure of the composite tape layer before the heat dissipation layer is attached. Figure 17 yes Figure 16 A partially enlarged structural diagram of region M6 in the middle (it can be understood that this is for the purpose of clearly illustrating the structure of this embodiment). Figure 10 and Figure 13 Transparency filler was applied to clearly illustrate the opening structure of the heat dissipation layer on the backlight side of the display panel. Figure 11 , Figure 14 , Figure 16 The diagram illustrates the planar structure of the heat dissipation layer before the composite tape layer is bonded to the display panel. In this embodiment, a corner area 20C includes multiple openings 101K, and the multiple openings 101K include at least a first-level opening 101KA and a second-level opening 101KB.

[0069] The length H1 of the first-level opening 101KA in its extension direction (direction F11 in the figure) is different from the length H2 of the second-level opening 101KB in its extension direction (direction F12 in the figure); and / or,

[0070] The maximum width D11 of the first-level opening 101KA in the third direction F3 is different from the maximum width D12 of the second-level opening 101KB in the fourth direction F4; wherein, the third direction F3 is perpendicular to the extension direction of the first-level opening 101KA (direction F11 in the figure), and the fourth direction F4 is perpendicular to the extension direction of the second-level opening 101KB (direction F12 in the figure). It is understood that in this embodiment, the extension direction of the opening and the direction perpendicular to the extension direction of the opening will differ depending on the location of the opening. For example, for... Figure 17 A second-stage opening of 101KB X In other words, its extension direction can be understood as Figure 17 In the direction F12, the direction perpendicular to direction F12 is Figure 17 The fourth direction F4, and the second-stage opening 101KB located on the other side of the first-stage opening 101KA. y In addition, its extension direction and the direction perpendicular to its own extension direction are two other directions. The two directions are also different for openings at different positions, which will not be elaborated here in this embodiment.

[0071] This embodiment explains that the heat dissipation layer 101 of the composite tape layer 10 can have multiple openings 101K in the corner region 20C. The multiple openings 101K in the same corner region 20C can include at least a first-level opening 101KA and a second-level opening 101KB. The difference between the first-level opening 101KA and the second-level opening 101KB is that... Figure 12As shown, the length H1 of the first-stage opening 101KA in the extension direction of the first-stage opening 101KA (direction F11 in the figure) is different from the length H2 of the second-stage opening 101KB in the extension direction of the second-stage opening 101KB (direction F12 in the figure), or as... Figure 15 As shown, the maximum value D11 of the width of the first-level opening 101KA in the third direction F3 is different from the maximum value D12 of the width of the second-level opening 101KB in the fourth direction F4, or as... Figure 17 As shown, the length H1 of the first-level opening 101KA in the extension direction of the first-level opening 101KA (direction F11 in the figure) is different from the length H2 of the second-level opening 101KB in the extension direction of the second-level opening 101KB (direction F12 in the figure). Furthermore, the maximum value D11 of the width of the first-level opening 101KA in the third direction F3 is also different from the maximum value D12 of the width of the second-level opening 101KB in the fourth direction F4. This embodiment is not specifically limited, but only needs to satisfy that, in the multi-level openings 101K, the length H1 of the first-level opening 101KA in the extension direction of the first-level opening 101KA (direction F11 in the figure) and the length H2 of the second-level opening 101KB in the extension direction of the second-level opening 101KB (direction F12 in the figure), and the maximum value D11 of the width of the first-level opening 101KA in the third direction F3 and the maximum value D12 of the width of the second-level opening 101KB in the fourth direction F4 are at least one different, so as to form openings 101K of different shapes in the corner area 20C of the heat dissipation layer 101. In this embodiment, multiple openings of different lengths, different maximum widths, or both different lengths and maximum widths are provided in the corner area 20C of the heat dissipation layer 101. By setting multiple openings 101K structures of different shapes, the deformation caused by compression of the heat dissipation layer 101 can be released more when it is attached to the corner area 20C, thereby further improving the attachment effect of the heat dissipation layer 101 in the corner area 20C and ensuring the bonding yield.

[0072] Optional, such as Figures 10-12 As shown, in this embodiment, the heat dissipation layer 101 in the corner area 20C includes a first-level opening 101KA and at least two second-level openings 101KB. Along the second direction F2, the first-level opening 101KA is located between the at least two second-level openings 101KB, thereby making the at least two second-level openings 101KB symmetrically arranged on both sides of a first-level opening 101KA. This helps to ensure that the buckling stress during the bonding of the heat dissipation layer 101 is released more evenly, further improving the bonding yield, reducing bonding difficulty, and improving process efficiency.

[0073] It is understood that the figures in this embodiment are only illustrative examples of the heat dissipation layer 101 in the corner area 20C including one first-level opening 101KA and two second-level openings 101KB. In specific implementation, the heat dissipation layer 101 in the corner area 20C may also include a structure comprising one first-level opening 101KA, two second-level openings 101KB, and two third-level openings (not shown in the figures). At least one of the length and width of the third-level opening is different from that of the second-level opening, and at least one of the length and width of the third-level opening is different from that of the first-level opening. The two third-level openings may be located on opposite sides of the two second-level openings 101KB to further improve the bonding yield. In this embodiment, the number of openings 101K included in the heat dissipation layer 101 of a corner area 20C is not specifically limited. In specific implementation, the number of openings 101K can be selected and set according to actual needs.

[0074] Optional, such as Figures 10-12 As shown, the multiple openings 101K in the same corner area 20C may include one first-level opening 101KA and two second-level openings 101KB. Along the second direction F2, the first-level opening 101KA is located between the two second-level openings 101KB. The length H1 of the first-level opening 101KA in its extension direction (direction F11 in the figure) is greater than the length H2 of the second-level opening 101KB in its extension direction (direction F12 in the figure). Further, optionally, the maximum value of the width of the first-level opening 101KA in its direction perpendicular to its length extension and the maximum value of the width of the second-level opening 101KB in its direction perpendicular to its length extension can be... By using the same width (i.e., the two openings at the edge of the corner area 20C can be the same), not only can the deformation caused by compression be released more when the heat dissipation layer 101 is attached to the corner area 20C by setting multiple openings 101K with different lengths, thereby improving the attachment effect and ensuring the bonding yield, but also the root of the second-level opening 101KB can be kept away from the boundary of the first-level opening 101KA. This prevents the heat dissipation layer 101 from breaking in the corner area 20C and detaching from the heat dissipation layer 101 in the planar area 20A and the curved area 20B due to the root of the second-level opening 101KB being too close to the root of the first-level opening 101KA. This is beneficial to improving the product quality after the heat dissipation layer 101 is attached to the display panel 20.

[0075] Optional, such as Figures 13-15As shown, the multiple openings 101K in the same corner area 20C may include one first-level opening 101KA and two second-level openings 101KB. Along the second direction F2, the first-level opening 101KA is located between the two second-level openings 101KB. The maximum value D11 of the width of the first-level opening 101KA in the third direction F3 is greater than the maximum value D12 of the width of the second-level opening 101KB in the fourth direction F4. The third direction F3 is perpendicular to the extension direction of the first-level opening 101KA (direction F11 in the figure), and the fourth direction F4 is perpendicular to the extension direction of the second-level opening 101KB (direction F12 in the figure). Optionally, the length of the first-level opening 101KA in the extension direction of the first-level opening 101KA and the length of the second-level opening 101KB in the extension direction of the second-level opening 101KB can be the same (i.e., the lengths of the two openings in the corner area 20C can be the same). By setting a multi-level opening 101K structure with different lengths, the deformation caused by compression can be released more when the heat dissipation layer 101 is attached in the corner area 20C, thereby improving the attachment effect and ensuring the bonding yield.

[0076] Optional, such as Figure 10 , Figure 16 and Figure 17As shown, the multiple openings 101K in the same corner region 20C may include one first-level opening 101KA and two second-level openings 101KB. Along the second direction F2, the first-level opening 101KA is located between the two second-level openings 101KB. The length H1 of the first-level opening 101KA in its extension direction (direction F11 in the figure) is greater than the length H2 of the second-level opening 101KB in its extension direction (direction F12 in the figure). Furthermore, the maximum width D11 of the first-level opening 101KA in the third direction F3 is greater than the maximum width D12 of the second-level opening 101KB in the fourth direction F4. The third direction F3 is perpendicular to the extension direction of the first-level opening 101KA (direction F11 in the figure), and the fourth direction F4 is perpendicular to the extension direction of the second-level opening 101KB. The direction (as shown in direction F12) is perpendicular to the heat dissipation layer 101 in the same corner area 20C. The longer the length of the opening 101K structure along its length extension direction, the wider the maximum width perpendicular to its length extension direction. This not only allows for the release of more deformation caused by compression when the heat dissipation layer 101 is attached to the corner area 20C by setting up multiple opening 101K structures with different lengths, thereby improving the attachment effect and ensuring the bonding yield, but also allows the root of the second-level opening 101KB to be far away from the boundary of the first-level opening 101KA. This prevents the heat dissipation layer 101 from breaking in the corner area 20C and detaching from the heat dissipation layer 101 in the planar area 20A and curved area 20B due to the root of the second-level opening 101KB being too close to the root of the first-level opening 101KA. This is beneficial to improving the product quality after the heat dissipation layer 101 is attached to the display panel 20.

[0077] In some alternative embodiments, please refer to the references. Figure 10 , Figure 16 and Figure 18 , Figure 18 yes Figure 16 Another enlarged schematic diagram of the M6 ​​region in this embodiment shows that at 1 / 2H1, that is, at half the length of the first-stage opening 101KA (e.g. Figure 18 At position J4 in the diagram, the width of the first-stage opening 101KA in the third direction F3 is D21; at 1 / 2H2, which is half the length of the second-stage opening 101KB (as shown in the diagram). Figure 18 At position J5 in the middle), the width of the second-level opening 101KB in the fourth direction F4 is D22; where D21 < D22.

[0078] This embodiment explains that the heat dissipation layer 101 of the composite tape layer 10 can have multiple openings 101K in the corner region 20C. Among the multiple openings 101K in the same corner region 20C, at least a first-level opening 101KA and a second-level opening 101KB are included. The difference between the first-level opening 101KA and the second-level opening 101KB is that the length H1 of the first-level opening 101KA in its extension direction (direction F11 in the figure) is greater than the length H2 of the second-level opening 101KB in its extension direction (direction F12 in the figure). Furthermore, the maximum width D11 of the first-level opening 101KA in the third direction F3 is greater than the maximum width D12 of the second-level opening 101KB in the fourth direction F4. Simultaneously, the first-level opening 101KA has a faster narrowing trend towards the plane region 20A compared to the second-level opening 101KB, specifically at half the length of the first-level opening 101KA (e.g., at half the length of the first-level opening 101KA). Figure 18 At position J4 in the diagram, the width D21 of the first-level opening 101KA in the third-direction F3 is less than half of the maximum width D11 of the first-level opening 101KA in the third-direction F3. This causes the width of the first-level opening 101KA in the third-direction F3 to narrow more rapidly along the direction from corner region 20C to plane region 20A. Similarly, at half the length of the second-level opening 101KB (e.g., at position J4 in the diagram), the width D21 of the first-level opening 101KA in the third-direction F3 tends to narrow more rapidly. Figure 18 At position J5 in the middle), the width D22 of the second-level opening 101KB in the fourth direction F4 is less than half of the maximum width D12 of the second-level opening 101KB in the fourth direction F4, so that along the direction from corner area 20C to plane area 20A, the width of the second-level opening 101KB in the fourth direction F4 has an accelerating narrowing trend. Therefore, the edges of the first-level opening 101KA and the second-level opening 101KB formed by the heat dissipation layer 101 in corner area 20C are both arc-shaped. The shape of the first-level opening 101KA and the second-level opening 101KB in the orthographic projection of the light-emitting surface of the display module 000 is a trumpet-shaped structure with the root at different positions, and at half the length of the first-level opening 101KA (e.g., at position J5 in the middle), the width D22 of the second-level opening 101KB in the fourth direction F4 is less than half of the maximum width D12 of the second-level opening 101KB in the fourth direction F4, so that the width of the second-level opening 101KB in the fourth direction F4 has an accelerating narrowing trend. Figure 18 At position J4 in the middle, the width D21 of the first-level opening 101KA in the third direction F3 is less than half the length of the second-level opening 101KB (e.g., at position J4 in the middle). Figure 18The width D22 of the second-level opening 101KB at position J5 in the fourth direction F4 makes the width at half the length of the longer first-level opening 101KA narrower. The first-level opening 101KA has a faster narrowing trend than the second-level opening 101KB, which can prevent the edge of the first-level opening 101KA from spreading too far before attachment. When the heat dissipation layer 101 is attached to the display panel 20, it can better release more of the deformation caused by compression, so that the first-level opening 101KA fits together more tightly after attachment, further improving the heat dissipation uniformity at the position of the first-level opening 101KA.

[0079] It is understood that, in this embodiment, the heat dissipation layer 101 of the composite tape layer 10 can have multiple openings 101K in the corner region 20C. When the multiple openings 101K in the same corner region 20C can include at least a first-level opening 101KA and a second-level opening 101KB, the root of the first-level opening 101KA and the root of the second-level opening 101KB can both be provided with... Figures 6-9 The crack stop 30 shown Figures 10-18 (Not shown in the figure) This is to prevent the opening from continuing to tear towards the flat area 20A at its root, thus ensuring a good bonding rate. This embodiment will not be described in detail here.

[0080] In some alternative embodiments, please continue to refer to the references. Figure 10 , Figure 16 and Figure 18 In this embodiment, in the corner region 20C, the heat dissipation layer 101 includes a third edge 101KA1 and a fourth edge 101KA2 forming a first-level opening 101KA; along the extending direction of the first-level opening 101KA (e.g. Figure 18 In the direction F11), the third edge 101KA1 and the fourth edge 101KA2 intersect at the first vertex P1;

[0081] In corner region 20C, heat dissipation layer 101 includes a fifth edge 101KB1 and a sixth edge 101KB2 forming a second-level opening 101KB; along the extension direction of the second-level opening 101KB (e.g. Figure 18 In the direction of F12), the fifth edge 101KB1 and the sixth edge 101KB2 intersect at the second vertex P2;

[0082] The first vertex P1 and the second vertex P2 are located at different positions in corner region 20C.

[0083] This embodiment explains that multiple openings 101K in the same corner area 20C may include one first-level opening 101KA and two second-level openings 101KB. Along the second direction F2, the first-level opening 101KA is located between the two second-level openings 101KB. When at least one of the length and maximum width of the first-level opening 101KA and the second-level opening 101KB is set differently, the third edge 101KA1 and the fourth edge 101KA2 forming the first-level opening 101KA intersect at the first vertex P1. The third edge 101KA1 and the fourth edge 101KA2 forming the first-level opening 101KA can both be arc-shaped. The fifth edge 101KB1 and the sixth edge 101KB2 forming the second-level opening 101KB intersect at the second vertex P2. The fifth edge 101KB1 and the sixth edge 101KB2 forming the second-level opening 101KB can both be arc-shaped. This ensures that although the first-level opening 101KA and the second-level opening 101KB have different structures, they are both funnel-shaped openings. Furthermore, in this embodiment, although both the first vertex P1 where the third edge 101KA1 and the fourth edge 101KA2 intersect to form the first-level opening 101KA, and the second vertex P2 where the fifth edge 101KB1 and the sixth edge 101KB2 intersect to form the second-level opening 101KB, are located in different positions within the corner region 20C, this not only allows for greater release of the deformation caused by compression when the heat dissipation layer 101 is attached to the corner region 20C by setting up a multi-level opening 101K structure with different lengths, thereby improving the attachment effect and ensuring a high bonding yield, but also allows the second vertex P2 of the second-level opening 101KB to be located away from the first-level opening 101KA. The third edge 101KA1 and the fourth edge 101KA2, and the second vertex P2 of the second-level opening 101KB are also far away from the first vertex P1 of the first-level opening 101KA. This prevents the heat dissipation layer 101 from breaking in the corner area 20C due to the distance between the second vertex P2 of the second-level opening 101KB (which can be understood as the root of the second-level opening 101KB) and the first vertex P1 of the first-level opening 101KA (which can be understood as the root of the first-level opening 101KA) being too close. This also prevents the heat dissipation layer 101 in the corner area 20C from detaching from the heat dissipation layer 101 in the planar area 20A and the curved area 20B, thereby helping to better improve the product quality after the heat dissipation layer 101 is attached to the display panel 20. Furthermore, in this embodiment, the first vertex P1 where the third edge 101KA1 and the fourth edge 101KA2 intersect to form the first-level opening 101KA, and the second vertex P2 where the fifth edge 101KB1 and the sixth edge 101KB2 intersect to form the second-level opening 101KB, are both located within the corner area 20C. This makes it easier to process and shape the opening of the heat dissipation layer 101 in the corner area 20C, and also ensures the support performance of the heat dissipation layer 101 in the planar area 20A for the display panel 20.

[0084] In some alternative embodiments, please refer to the references. Figure 10 , Figure 16 and Figure 19 , Figure 19 yes Figure 16 Another locally enlarged structural schematic diagram of the M6 ​​region. In this embodiment, the third edge 101KA1 and the fourth edge 101KA2 are symmetrical along the first axis of symmetry L1, and the fifth edge 101KB1 and the sixth edge 101KB2 are symmetrical along the second axis of symmetry L2.

[0085] The first axis of symmetry L1 and the second axis of symmetry L2 do not intersect.

[0086] This embodiment explains that multiple openings 101K in the same corner region 20C may include one first-level opening 101KA and two second-level openings 101KB. When the third edge 101KA1 and the fourth edge 101KA2 of the first-level opening 101KA, forming a trumpet shape, intersect at the first vertex P1, and the fifth edge 101KB1 and the sixth edge 101KB2 of the second-level opening 101KB, forming a trumpet shape, intersect at the second vertex P2, the third edge 101KA1 and the fourth edge 101KA2 are symmetrical along the first axis of symmetry L1, and the fifth edge 101KB1 and the sixth edge 101KB2 are symmetrical along the second axis of symmetry L2. Furthermore, the first axis of symmetry L1 and the second axis of symmetry L2 do not intersect. That is, the first-level opening 101... The first axis of symmetry L1 between the third edge 101KA1 and the fourth edge 101KA2 of KA, and the second axis of symmetry L2 between the fifth edge 101KB1 and the sixth edge 101KB2 of the second-level opening 101KB are parallel to each other. Even if improper force is applied during the bonding process, it can prevent the heat dissipation layer 101 from breaking in the corner area 20C if the first-level opening 101KA and the second-level opening 101KB are torn along their respective roots. This helps to ensure the integrity of the heat dissipation layer 101 in the flat area 20A, the curved area 20B, and the corner area 20C after the heat dissipation layer 101 is bonded to the display panel 20. This, in turn, helps to ensure the overall heat dissipation uniformity of the display panel 20 and further improves the product quality.

[0087] In some alternative embodiments, please refer to the references. Figure 1 , Figure 2 and Figure 20 , Figure 20 yes Figure 1 and Figure 2 A schematic diagram of the planar structure of the composite tape layer before the heat dissipation layer is attached (it should be understood that this is for the purpose of clearly illustrating the structure of this embodiment). Figure 20The diagram illustrates the planar structure of the heat dissipation layer before the composite tape layer is bonded to the display panel. In this embodiment, in the corner area 20C, the heat dissipation layer 101 also includes a hollow portion 101L. Along the first direction F1, the hollow portion 101L is located on the side of the opening 101K close to the planar area 20A.

[0088] This embodiment explains that the heat dissipation layer 101 of the composite tape layer 10 can not only have an opening 101K in the corner area 20C, but also a hollow portion 101L on the side of the opening 101K near the plane area 20A. The hollow portion 101L is not connected to the root of the opening 101K. The root of the opening 101K can be understood as the end of the opening 101K with the narrowest width in the second direction F2 (e.g., Figure 20 (At position J6 shown). In this embodiment, the hollow portion 101L formed on the heat dissipation layer 101 in the corner area 20C can be formed through the thickness of the entire heat dissipation layer 101. The hollow portion 101L is used as a space for the recessed edge of the opening 101K (e.g., Figure 21 As shown, Figure 21 yes Figure 20 (Partial schematic diagram of the bonding process between the heat dissipation layer and the display panel in the M7 area). When the heat dissipation layer 101 of the corner area 20C is attached to the backlight surface of the display panel 20, the arc-shaped edge of the trumpet-shaped opening 101K can follow the curved shape of the corner area 20C to accommodate the space for deformation release when compressed. This allows the arc-shaped edges of the opening 101K to merge together as much as possible, avoiding gaps between the arc-shaped edges of the opening 101K after bonding, and ensuring uniform heat dissipation of the heat dissipation layer 101 at the corner. The uniformity is achieved by providing a hollowed-out portion 101L on the side of the opening 101K near the planar area 20A. This allows the curved edge of the opening 101K to be bent inwards towards the hollowed-out portion 101L, ensuring that the curved edge of the opening 101K can accommodate the area where the hollowed-out portion is located when it is concave. This further prevents the curved edge of the opening 101K from wrinkling on the curved surface of the corner area 20C after the heat dissipation layer 101 is attached to the display panel 20, thus improving the adhesion yield of the heat dissipation layer 101 in the corner area 20C.

[0089] Optional, such as Figure 1 , Figure 2 , Figure 20 and Figure 21 As shown, in the corner region 20C, the heat dissipation layer 101 includes a first sub-edge 101K0 forming an opening 101K, and the hollow portion 101L includes a second sub-edge 101L0 facing the opening 101K. The shape of the second sub-edge 101L0 is the same as the shape of the first sub-edge 101K0.

[0090] This embodiment explains that the heat dissipation layer 101 in the corner region 20C can not only have an opening 101K, but also a hollow portion 101L on the side of the opening 101K near the plane region 20A. When the hollow portion 101L does not penetrate the root of the opening 101K, the first sub-edge 101K0 of the opening 101K and the second sub-edge 101L0 of the hollow portion 101L can be set to have the same shape. The first sub-edge 101K0 of the opening 101K can be understood as the edge forming the opening 101K (the first sub-edge 101K0). 1K0 corresponds to the edge formed by the intersection of the first edge 101KA1 and the second edge 101KA2 in the above embodiment. The second sub-edge 101L0 can be understood as the edge of the hollow portion 101L facing the opening 101K along the length extension direction of the opening 101K (such as along the first direction F1 in the figure). By making the first sub-edge 101K0 of the opening 101K and the second sub-edge 101L0 of the hollow portion 101L have the same shape, it is possible to make the connection structure of the opening 101K and the hollow portion 101L (such as...) Figure 20 The connection structure LK between the first sub-edge 101K0 and the second sub-edge 101L0, as shown in the diagram, forms the same arc-shaped structure as the first sub-edge 101K0 and the second sub-edge 101L0. The first sub-edge 101K0 of the opening 101K is a structure that is concave at its root. Therefore, the connection structure LK between the opening 101K and the hollow part 101L can also be an arc-shaped structure that is concave in the direction of the plane area 20A. This makes it easier for the first sub-edge 101K0 of the opening 101K to naturally form a tendency to accommodate the area where the hollow part 101L is located when the opening 101K is concave during bonding. This not only makes bonding easier but also avoids wrinkles on the curved surface of the corner area 20C, thus improving the bonding yield.

[0091] Optional, such as Figure 1 , Figure 2 , Figure 20 , Figure 21 and Figure 22 As shown, Figure 22 yes Figure 1 and Figure 2 A schematic diagram of another planar structure before the heat dissipation layer of the composite tape layer is attached (it can be understood that this is for the purpose of clearly illustrating the structure of this embodiment). Figure 22 The diagram illustrates the planar structure of the heat dissipation layer before the composite tape layer is bonded to the display panel. In this embodiment, the hollow portion 101L provided in the corner area 20C includes a third sub-edge 101L1 and a fourth sub-edge 101L2 that are respectively connected to the two ends of the second sub-edge 101L0. The third sub-edge 101L1 and the fourth sub-edge 101L2 include either a straight line or a curve.

[0092] This embodiment explains that an opening 101K is formed in the heat dissipation layer 101 of the corner area 20C, and a hollow portion 101L is formed on the side of the opening 101K near the planar area 20A. The hollow portion 101L is not continuous with the root of the opening 101K. When the first sub-edge 101K0 of the opening 101K and the second sub-edge 101L0 of the hollow portion 101L have the same shape, the other edges forming the hollow portion 101L can be either straight lines or curves, specifically in the corner area. The hollow portion 101L provided in 20C includes a third sub-edge 101L1 and a fourth sub-edge 101L2 that are respectively connected to both ends of the second sub-edge 101L0. One end of the third sub-edge 101L1 is connected to one end of the second sub-edge 101L0, one end of the fourth sub-edge 101L2 is connected to the other end of the second sub-edge 101L0, and the other end of the third sub-edge 101L1 is connected to the other end of the fourth sub-edge 101L2, together forming the hollow portion 101L. In this embodiment, the edges of the hollow portion 101L, excluding the second sub-edge 101L0, do not necessarily have the same shape as the first sub-edge 101K0. They can be any other straight or curved shape, as long as the first sub-edge 101K0 of the opening 101K and the second sub-edge 101L0 of the hollow portion 101L have the same shape. This allows the connection structure LK between the opening 101K and the hollow portion 101L to be an arc-shaped structure that is concave in the direction of the planar area 20A. This facilitates the natural tendency of the first sub-edge 101K0 of the opening 101K to be recessed and accommodate the area where the hollow portion 101L is located during bonding. This can avoid wrinkles on the curved surface of the corner area 20C and improve the bonding yield. This embodiment does not impose any limitations on this.

[0093] Optional, such as Figure 20 As shown, when the third sub-edge 101L1 and the fourth sub-edge 101L2 are straight lines, the angle formed by the third sub-edge 101L1 and the fourth sub-edge 101L2 can be a right angle, so that the hollow area of ​​the hollow part 101L is large enough, and when the first sub-edge 101K0 of the opening 101K is concave during fitting, there is enough space to accommodate it, which can further reduce the probability of wrinkles.

[0094] Optional, such as Figure 22 As shown, when the third sub-edge 101L1 and the fourth sub-edge 101L2 are curved, they can form a hollowed-out portion 101L together with the arc shape of the second sub-edge 101L0. Furthermore, each edge of the hollowed-out area 101L is arc-shaped or curved, which facilitates the natural tendency of the first sub-edge 101K0 of the opening 101K to accommodate the area where the hollowed-out portion 101L is located when the opening 101K is recessed during the bonding process, making the bonding operation simpler.

[0095] In some alternative embodiments, please refer to the references. Figure 1 , Figure 23 , Figure 24 , Figure 23 yes Figure 1 Another cross-sectional structural diagram along the A-A' direction. Figure 24 yes Figure 1 and Figure 23 A schematic diagram of the split planar structure of the composite tape layer and the pre-film layer of the display panel before they are bonded. In this embodiment, the composite tape layer 10 also includes a first foam layer 102, which is located on the side of the heat dissipation layer 101 facing the display panel 20. The first foam layer 102 is a full-surface structure covering the planar area 20A, the curved area 20B and the corner area 20C.

[0096] This embodiment explains that the composite tape layer 10, which is attached to the backlight surface 20B side of the display panel 20, can include not only the heat dissipation layer 101, but also a first foam layer 102 located on the side of the heat dissipation layer 101 facing the display panel 20. The first foam layer 102 can play a buffering role in enhancing the composite tape layer 10. In this embodiment, the first foam layer 102 is a full-surface structure covering the planar area 20A, the curved area 20B, and the corner area 20C. That is, although the heat dissipation layer 101 in the corner area 20C has an opening 101K, the first foam layer 102 is still a full-surface structure (e.g., Figure 24 As shown, the shape of the first foam layer 102 is consistent with the shape of the display panel 20 (with no openings in the corner area 20C), which avoids affecting the overall black light-blocking effect. Not only can the opening 101K in the corner area 20C of the heat dissipation layer 101 achieve uniform heat dissipation and ensure the display effect when the display is lit, but the first foam layer 102 of the whole surface structure can also make the display module achieve an overall black effect when the screen is off, making it difficult to distinguish obvious border boundaries.

[0097] In some alternative embodiments, please refer to the references. Figure 1 , Figure 25 , Figure 26 , Figure 25 yes Figure 1 Another cross-sectional structural diagram along the A-A' direction. Figure 26 yes Figure 1 and Figure 25 A schematic diagram of the planar structure of the first adhesive layer before the composite tape layer is bonded to the display panel. In this embodiment, the composite tape layer 10 may further include a first adhesive layer 103 and a second adhesive layer 104. The first adhesive layer 103 is located between the display panel 20 and the first foam layer 102, and the second adhesive layer 104 is located between the heat dissipation layer 101 and the first foam layer 102. Both the first adhesive layer 103 and the second adhesive layer 104 are full-surface structures covering the planar area 20A, the curved area 20B, and the corner area 20C.

[0098] This embodiment explains that the composite tape layer 10, which is attached to one side of the backlight surface 20B of the display panel 20, may include not only the heat dissipation layer 101 and the first foam layer 102, but also a first adhesive layer 103 located between the display panel 20 and the first foam layer 102, and a second adhesive layer 104 located between the heat dissipation layer 101 and the first foam layer 102. The first adhesive layer 103 is used to adhere and fix the composite tape layer 10 to the backlight surface 10B of the display panel 20. The first adhesive layer 103 may be an adhesive layer including materials such as PET / PI, which not only makes the first adhesive layer 103 sticky, but also protects the first foam layer 102 through the included PET / PI materials. The second adhesive layer 104 is located between the heat dissipation layer 101 and the first foam layer 102, and the second adhesive layer 104 is used to adhere and fix the heat dissipation layer 101 to the first foam layer 102. In this embodiment, the first adhesive layer 103 and the second adhesive layer 104 are both full-surface structures covering the planar area 20A, the curved area 20B, and the corner area 20C (e.g., Figure 26 As shown, the shapes of the first adhesive layer 103 and the second adhesive layer 104 are consistent with the shape of the display panel 20 (the corner area 20C has no openings). That is, although the heat dissipation layer 101 of the corner area 20C has an opening 101K, the first foam layer 102, the first adhesive layer 103 and the second adhesive layer 104 are still a whole-surface structure. This not only prevents the first foam layer 102 from falling off, but also helps to ensure a seamless black effect in the corner area 20C of the display panel 20 through the whole-surface complete structure of the above-mentioned light-shielding film layer.

[0099] Optionally, the material of the heat dissipation layer 101 in this embodiment includes metal foil. When the heat dissipation layer 101 is metal foil, it is attached to the outermost side of the composite tape layer 10 away from the display panel 20. It can not only support, dissipate heat and shield the display panel 20, but also protect the screen body through the relatively hard heat dissipation layer 101.

[0100] Optionally, in some other alternative embodiments, please refer to the references Figure 1 and Figure 27 , Figure 27 yes Figure 1Another cross-sectional structural diagram along the A-A' direction. In this embodiment, the material of the heat dissipation layer 101 may also include graphite sheets. In this case, the composite tape layer 10 may also include a second foam layer 105. The second foam layer 105 is located on the side of the heat dissipation layer 101 away from the first foam layer 102. The second foam layer 105 is used to protect the heat dissipation layer 101 of the graphite sheets. The second foam layer 105, located on the side of the heat dissipation layer 101 away from the first foam layer 102, has the same shape as the first foam layer 102. Both are full-surface structures covering the planar area 20A, the curved area 20B, and the corner area 20C (not shown in the attached diagram, but can be understood by referring to the planar structure of the first foam layer 102). That is, although the heat dissipation layer 101 in the corner area 20C has an opening 101K, the first foam layer 102, the first adhesive layer 103, the second adhesive layer 104, and the second foam layer 105 are still full-surface structures. This not only prevents the second foam layer 105 from falling off and protects the heat dissipation layer 101 of the graphite sheet through the second foam layer 105, but also helps to ensure a seamless black effect in the corner area 20C of the display panel 20 through the complete structure of the light-shielding film layer.

[0101] It is understood that when the composite tape layer 10 of this embodiment is attached to the backlight surface 20B side of the display panel 20, the first foam layer 102 can be adhered to the backlight surface 10B side of the display panel 20 firstly through the first adhesive layer 103, and then the heat dissipation layer 101 can be adhered to the first foam layer 102 through the second adhesive layer 104. When the side of the heat dissipation layer 101 away from the first foam layer 102 also includes the second foam layer 105, the second foam layer 105 can also be attached to the heat dissipation layer 101 through another adhesive layer, forming a structure of composite tape layer 10 on the backlight surface 20B side of the display panel 20. When the display module 000 is in use, the composite tape layer 10 can play the role of heat dissipation and shielding of interference signals for the display panel 20, so as to ensure the display quality of the display module 000, and can also ensure the all-black effect when the screen is off.

[0102] In some alternative embodiments, please refer to the references. Figures 28-30 , Figure 28 This is a schematic diagram of another planar structure of the display module provided in an embodiment of the present invention on the light-emitting surface side of the display panel. Figure 29 yes Figure 28 A schematic diagram of the planar structure of the composite tape layer before the heat dissipation layer is attached. Figure 30 yes Figure 29A partially enlarged structural diagram of the M8 region is shown. In this embodiment, the multiple corner regions 20C include at least a first corner region 20C1 and a second corner region 20C2. The opening 101K of the first corner region 20C1 is the first opening 101K01, and the opening 101K of the second corner region 20C2 is the second opening 101K02. The first opening 101K01 extends in the direction of its extension (e.g., ...). Figure 30 The length H01 in the direction F13 shown is related to the extension direction of the second opening 101K02 in the direction of the second opening 101K02 (e.g., Figure 30 The length H02 in the direction F14 shown is different; and / or,

[0103] The maximum width D01 of the first opening 101K01 in the fifth direction F5 is different from the maximum width D02 of the second opening 101K02 in the sixth direction F6; wherein, the fifth direction F5 is different from the extension direction of the first opening 101K01 (e.g., Figure 30 The direction F13 shown is perpendicular to the direction of extension of the second opening 101K02 (as shown). Figure 30 The direction shown (F14) is perpendicular.

[0104] Optionally, the first opening 101K01 extends in the direction of the first opening 101K01 (e.g., Figure 30 The length H01 in the direction F13 shown is greater than the length H01 in the direction of extension of the second opening 101K02 in the direction of extension of the second opening 101K02 (e.g., Figure 30 The length H02 in the direction F14 shown is such that the maximum value D01 of the width of the first opening 101K01 in the fifth direction F5 can be equal to the maximum value D02 of the width of the second opening 101K02 in the sixth direction F6, as shown in the attached figure.

[0105] Optionally, the maximum value D01 of the width of the first opening 101K01 in the fifth direction F5 is greater than the maximum value D02 of the width of the second opening 101K02 in the sixth direction F6; wherein, the fifth direction F5 and the extension direction of the first opening 101K01 (e.g., Figure 30 The direction F13 shown is perpendicular to the direction of extension of the second opening 101K02 (as shown). Figure 30 The direction shown (F14) is perpendicular, at which point the first opening 101K01 extends in the direction shown by the first opening 101K01 (e.g., Figure 30 The length H01 in the direction F13 shown can be equal to the length H01 in the direction of extension of the second opening 101K02 in the direction of extension of the second opening 101K02 (e.g., Figure 30 The length H02 in the direction F14 shown is not illustrated in the attached diagram.

[0106] Optional, such as Figure 29 and Figure 30 As shown, the first opening 101K01 extends in the direction of the first opening 101K01 (e.g. Figure 30 The length H01 in the direction F13 shown is greater than the length H01 in the direction of extension of the second opening 101K02 in the direction of extension of the second opening 101K02 (e.g., Figure 30 The length H02 in the direction F14 shown, and the maximum value D01 of the width of the first opening 101K01 in the fifth direction F5 is greater than the maximum value D02 of the width of the second opening 101K02 in the sixth direction F6; wherein, the fifth direction F5 and the extension direction of the first opening 101K01 (as shown) are... Figure 30 The direction F13 shown is perpendicular to the direction of extension of the second opening 101K02 (as shown). Figure 30 The direction shown (F14) is perpendicular.

[0107] This embodiment explains that the display panel 20 includes multiple corner areas 20C. As shown in the shape of the display panel 20 illustrated in this embodiment, the display panel 20 includes four corner areas 20C. The multiple corner areas 20C include at least a first corner area 20C1 and a second corner area 20C2. The opening 101K of the first corner area 20C1 is named the first opening 101K01, and the opening 101K of the second corner area 20C2 is named the second opening 101K02. At least one of the length and maximum width of the first opening 101K01 is different from that of the second opening 101K02. Figure 29 and Figure 30 Taking the example of the first opening 101K01 having a length H01 in its extension direction that is greater than the second opening 101K02 having a length H02 in its extension direction, and the first opening 101K01 having a maximum width D01 in the fifth direction F5 that is greater than the second opening 101K02 having a maximum width D02 in the sixth direction F6, the length and / or maximum width of the openings in different corner areas 20C can be differentiated. When the heat dissipation layer 101 is bonded to the backlight surface of the display panel 20, the bonding can be performed first. The heat dissipation layer 101 at the first corner region 20C1 has a longer length H01 and a wider maximum width D01 due to the longer first opening 101K01 of the first corner region 20C1. This reduces the bonding difficulty between the heat dissipation layer 101 at the first corner region 20C1 and the display panel 20, resulting in a higher bonding yield in the initial step. After the heat dissipation layer 101 at the first corner region 20C1 is bonded to the display panel 20, the bonding process of the film layers in the other second corner regions 20C2 is completed, which helps to reduce the overall bonding difficulty of the film layers and further improves the process efficiency.

[0108] In some alternative embodiments, please refer to Figure 31 , Figure 31This is a schematic diagram of the planar structure of the display device provided in the embodiment of the present invention. The display device 111 provided in this embodiment includes the display module 000 provided in the above embodiment of the present invention. Figure 31 This embodiment uses a mobile phone as an example to illustrate the display device 111. It is understood that the display device 111 provided in this embodiment can be any other display device 111 with display functions, such as a computer, television, or in-vehicle display device; this invention does not impose specific limitations on this. The display device 111 provided in this embodiment has the beneficial effects of the display module 000 provided in this embodiment. For details, please refer to the specific descriptions of the display module 000 in the above embodiments; these will not be repeated here.

[0109] As can be seen from the above embodiments, the display module and display device provided by the present invention achieve at least the following beneficial effects:

[0110] The display module provided by this invention can be a curved screen. The display module includes a display panel and a composite tape layer. The display panel is used to achieve the display effect of the display module. The composite tape layer attached to the backlight side of the display panel can provide a certain support for the display panel. The composite tape layer, which includes at least a heat dissipation layer, is attached to the backlight side of the display panel. When the display module is in use, it can dissipate heat from the display panel and shield interference signals to ensure the display quality of the display module. The display panel includes a flat area, multiple curved areas, and multiple corner areas. The multiple curved areas are at least partially arranged around the flat area, and the corner areas are arranged at the corners where the curved areas surround the flat area. In this invention, the heat dissipation layer has at least one opening in the corner area. The opening extends along a first direction and has a structure where the width of the opening is smaller in a second direction the closer it is to the flat area, and larger in a second direction the further it is from the flat area. Furthermore, at half the length of the opening, the width of the opening in the second direction is less than half the maximum width of the opening in the second direction. This causes the width of the opening in the second direction to narrow rapidly in the first direction and along the direction from the corner area to the plane area. The edge of the opening formed by the heat dissipation layer in the corner area is arc-shaped, and the shape of the orthographic projection of the opening on the light-emitting surface of the display module is trumpet-shaped. This prevents the heat dissipation layer in the corner area from being squeezed by forces in different directions when it is bonded to the backlight surface of the display panel. Even if the heat dissipation layer has a large elastic modulus and poor ductility, it can also prevent the heat dissipation layer in the corner area from buckling after being bonded to the display panel. This can prevent wrinkles or bubbles from forming between the heat dissipation layer and the display panel, which is beneficial to improving the bonding yield and reducing the bonding difficulty. Furthermore, after the heat dissipation layer provided by this invention is bonded to the backlight surface of the display panel, the arc-shaped edges of the trumpet-shaped openings in the corner area can follow the curved shape of the corner area, so that the arc-shaped edges of the openings can be merged together as much as possible. This avoids gaps remaining between the arc-shaped edges of the openings after bonding, which would lead to uneven heat dissipation of the display panel in the corner area. In this way, it can effectively ensure the uniformity of heat dissipation of the heat dissipation layer in the corner after the heat dissipation layer is bonded to the display panel, thereby improving the display quality.

[0111] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A display module, characterized in that, include: A display panel and a composite tape layer, wherein the composite tape layer is located on the backlight side of the display panel; the composite tape layer includes at least a heat dissipation layer; The display panel includes a flat area, multiple curved areas, and multiple corner areas. The multiple curved areas are at least partially arranged around the flat area, and the corner areas are located at the corners where the curved areas surround the flat area. In the corner area, the heat dissipation layer includes at least one opening that extends along a first direction; The corner area includes a first position and a second position located at the first position away from the planar area, wherein the width of the opening at the first position in the second direction is smaller than the width of the opening at the second position in the second direction, and the second direction is perpendicular to the first direction; The length of the opening in the first direction is H, and at 1 / 2H, the width of the opening in the second direction is D2, and the maximum value of the width of the opening in the second direction is D1; ​​wherein, D2 < 0.5D1; The shape of the opening in the orthographic projection of the light-emitting surface of the display module is trumpet-shaped; In the corner area, the heat dissipation layer further includes a cutout portion, which is located on the side of the opening near the planar area along the first direction; In the corner area, the heat dissipation layer includes a first sub-edge forming the opening, and the cutout includes a second sub-edge facing the opening, the shape of the second sub-edge being the same as the shape of the first sub-edge; The plurality of corner areas includes at least a first corner area and a second corner area, wherein the opening in the first corner area is a first opening, and the opening in the second corner area is a second opening; the length H01 of the first opening in its extension direction is different from the length H02 of the second opening in its extension direction; and / or, The maximum value D01 of the width of the first opening in the fifth direction is different from the maximum value D02 of the width of the second opening in the sixth direction; wherein the fifth direction is perpendicular to the extension direction of the first opening, and the sixth direction is perpendicular to the extension direction of the second opening.

2. The display module according to claim 1, characterized in that, In the corner region, the heat dissipation layer includes a first edge and a second edge forming the opening; at the intersection of the first edge and the second edge, the heat dissipation layer in the corner region includes a crack-stopping opening; Along the first direction, the width of the crack-stopping opening gradually increases in the second direction, and the closer to the planar region, the greater the width of the crack-stopping opening in the second direction; or, The crack-stopping opening includes a crack-stopping edge. Along the first direction, the curvature of the crack-stopping edge gradually increases, and the curvature of the crack-stopping edge is greater the closer it is to the planar area.

3. The display module according to claim 1, characterized in that, One of the corner areas includes a plurality of the openings, the plurality of openings including at least a first-level opening and a second-level opening; The length H1 of the first-level opening in its extension direction is different from the length H2 of the second-level opening in its extension direction; and / or, The maximum value D11 of the width of the first-level opening in the third direction is different from the maximum value D12 of the width of the second-level opening in the fourth direction; wherein, the third direction is perpendicular to the extension direction of the first-level opening, and the fourth direction is perpendicular to the extension direction of the second-level opening.

4. The display module according to claim 3, characterized in that, The corner area includes a first-level opening and at least two second-level openings, with the first-level opening located between the at least two second-level openings along the second direction.

5. The display module according to claim 3, characterized in that, H1 > H2.

6. The display module according to claim 3, characterized in that, D11 > D12.

7. The display module according to claim 3, characterized in that, H1 > H2 and D11 > D12.

8. The display module according to claim 3, characterized in that, At 1 / 2H1, the width of the first-level opening in the third direction is D21; at 1 / 2H2, the width of the second-level opening in the fourth direction is D22; wherein, D21 < D22.

9. The display module according to claim 3, characterized in that, In the corner region, the heat dissipation layer includes a third edge and a fourth edge forming the first-level opening; along the extension direction of the first-level opening, the third edge and the fourth edge converge at a first vertex; In the corner region, the heat dissipation layer includes a fifth edge and a sixth edge forming the second-level opening; Along the extension direction of the second-level opening, the fifth edge and the sixth edge converge at the second vertex; The first vertex and the second vertex are located at different positions in the corner region.

10. The display module according to claim 9, characterized in that, The third edge and the fourth edge are symmetrical about each other along the first axis of symmetry, and the fifth edge and the sixth edge are symmetrical about each other along the second axis of symmetry. The first axis of symmetry does not intersect with the second axis of symmetry.

11. The display module according to claim 1, characterized in that, The hollowed-out portion includes a third sub-edge and a fourth sub-edge that are respectively connected to the two ends of the second sub-edge. The third sub-edge and the fourth sub-edge can be either a straight line or a curve.

12. The display module according to claim 1, characterized in that, The composite tape layer also includes a first foam layer, which is located on the side of the heat dissipation layer facing the display panel; the first foam layer is a full-surface structure covering the planar area, the curved area and the corner area.

13. The display module according to claim 12, characterized in that, The composite tape layer includes a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is located between the display panel and the first foam layer, and the second adhesive layer is located between the heat dissipation layer and the first foam layer; Both the first adhesive layer and the second adhesive layer are full-surface structures covering the planar area, the curved area, and the corner area.

14. The display module according to claim 1, characterized in that, H01 > H02.

15. The display module according to claim 1, characterized in that, D01 > D02.

16. The display module according to claim 1, characterized in that, H01 > H02, and D01 > D02.

17. A display device, characterized in that, Includes the display module as described in any one of claims 1-16.

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