Display module and electronic equipment

Abstract

The invention discloses a display module and electronic equipment, the display module comprises a display panel, a composite support structure and a through hole structure, the display panel comprises a main body part, a bending part and a fan-out part which are connected in sequence, and the fan-out part is bent and overturned to the back surface of the main body part through the bending part; the composite supporting layer is arranged between the main body part and the fan-out part; the through hole structure at least penetrates through the main body part, the composite supporting layer and the fan-out part, the through hole structure comprises a first hole section located on the main body part and a third hole section located on the fan-out part, and the size of the first hole section is smaller than that of the third hole section. According to the display module, a sufficient Z-axis space is provided for external functional components such as the camera through the through hole structure, a large installation space is provided for the external functional components, and the light and thin design of the display module is achieved.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display module and an electronic device. Background Technology

[0002] With the development of full-screen technology, creating holes in the display area for components such as front-facing cameras and sensors (commonly known as O-cut or under-display hole) has become the mainstream solution. However, such holes can only provide limited Z-axis space, which restricts the thickness of components such as camera modules, thus affecting the overall thin and light design of the device. Summary of the Invention

[0003] This application provides a display module and an electronic device that optimizes the stacked opening design to achieve a thinner and lighter overall design, thereby at least partially solving the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a display module is provided, comprising: The display panel includes a main body, a bent portion, and a fan-out portion connected in sequence, wherein the fan-out portion is bent and flipped to the back of the main body through the bent portion; A composite support layer is disposed between the main body and the fan-out portion; The through-hole structure extends at least through the main body, the composite support layer, and the fan-out portion. The through-hole structure includes a first hole segment on the main body and a third hole segment on the fan-out portion, wherein the size of the first hole segment is smaller than the size of the third hole segment.

[0005] Optionally, it may also include an anti-corrosion layer that coats at least a portion of the hole walls of the through-hole structure.

[0006] Optionally, the side of the anti-corrosion layer away from the hole wall is located on the same circumference; Optionally, it also includes a cover plate and a polarizer, wherein the polarizer is disposed on the side of the main body away from the composite support layer, the cover plate is disposed on the side of the polarizer away from the main body, and the polarizer and the cover plate are connected by an optical adhesive layer, and the through-hole structure penetrates the polarizer and the optical adhesive layer.

[0007] Optionally, it further includes a light-shielding layer disposed on the side of the polarizer near the display panel. The light-shielding layer includes a light-shielding area and a light-transmitting area. The light-transmitting area and the through-hole structure are aligned, and the projection of the hole wall of the through-hole structure onto the light-shielding layer is located in the light-shielding area.

[0008] Optionally, the composite support layer includes a first back plate, a buffer layer, a support layer, and a second back plate. The first back plate is disposed on the back side of the main body, the buffer layer is disposed on the side of the first back plate away from the main body, the support layer is disposed on the side of the buffer layer away from the first back plate, and the second back plate is disposed between the support layer and the fan-out portion. The through-hole structure penetrates the first back plate, the buffer layer, the support layer, and the second back plate.

[0009] Optionally, the through-hole structure includes a fifth hole segment located in the optical adhesive layer, a fourth hole segment located in the polarizer, and a first sub-hole segment located in the first back plate, wherein the first sub-hole segment, the first hole segment, the fourth hole segment, and the fifth hole segment are all the same size or the first sub-hole segment, the first hole segment, and the fourth hole segment are all the same size; And / or, the through-hole structure includes a fourth sub-hole segment located on the second back plate, wherein the third hole segment and the fourth sub-hole segment are of the same size.

[0010] Optionally, the composite support layer further includes a metal layer disposed between the buffer layer and the support layer, and the through-hole structure penetrates the metal layer.

[0011] Optionally, it also includes a conductive tape disposed on the side of the fan-out portion away from the composite support layer, and the through-hole structure penetrates the conductive tape.

[0012] According to a second aspect of this application, an electronic device is provided, including a display module as described in any of the preceding claims.

[0013] The display module and electronic device of this application embodiment increase the hole depth by setting a through-hole structure that penetrates the main body, fan-out portion, and composite support layer between the main body and fan-out portion of the display panel. This provides sufficient Z-axis space for external functional components such as cameras, allowing them to be partially embedded inside the display module. While achieving a narrow bezel design, it also provides a larger installation space for external functional components, thereby achieving a thinner and lighter display module design. The size of the first hole segment of the through-hole structure in the main body is smaller than the size of the third hole segment of the through-hole structure in the fan-out portion, reducing the impact of the opening on display uniformity, brightness consistency, and overall visual experience, and maximizing the protection of display integrity.

[0014] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0016] Figure 1 This is a schematic diagram of the overall structure of the display module provided in an exemplary embodiment of this disclosure; Figure 2 yes Figure 1 A schematic diagram of the first type of cross-section under the AA section view; Figure 3 yes Figure 1 A schematic diagram of the second type of cross-section under the AA section view; Figure 4 yes Figure 1 A schematic diagram of the third type of cross-section under the AA section view; Figure 5 yes Figure 1 A schematic diagram of the fourth type of cross-section under the AA section view; Figure 6 yes Figure 1 A schematic diagram of the fifth type of cross-section under AA section view; Figure 7 yes Figure 1 A schematic diagram of the sixth type of cross-section under the AA section view.

[0017] Explanation of reference numerals in the attached figures: 100. Display module; 110. Display panel; 111. Main body; 112. Bending section; 113. Fan-out section; 120. Composite support layer; 121. First backplate; 122. Buffer layer; 123. Support layer; 124. Second backplate; 125. Metal layer; 130. Polarizing film; 140. Optical adhesive layer; 150. Cover plate; 160. Light-blocking layer; 161. Light-transmitting area; 162. Light-blocking area; 170. Conductive tape; 180. Bracket; 190. Through-hole structure; 191. First hole section; 192. Second hole section; 1921. First sub-hole section; 1922. Second sub-hole section; 1923. Third sub-hole section; 1924. Fourth sub-hole section; 1925. Fifth sub-hole section; 193. Third hole section; 194. Fourth hole section; 195. Fifth hole section; 196. Sixth hole section; 197. Seventh hole section; 199. Anti-corrosion layer. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0019] See Figure 1 and Figure 2 This embodiment provides a display module 100, including a display panel 110, which is a flexible panel, such as a flexible OLED panel. The display panel 110 includes a display area and a non-display area. The non-display area includes a bent area near the display area, a fan-out area located on the side of the bent area away from the display area, and a bonding area located on the side of the fan-out area away from the bent area. The display panel 110 includes a main body 111, a bent portion 112, and a fan-out portion 113. The main body 111 corresponds to the display panel 110 portion of the display area, the bent portion 112 corresponds to the display panel 110 portion of the bent area, and the fan-out portion 113 corresponds to the display panel 110 portion of the fan-out area. The main body 111 includes a front side and a back side disposed opposite to each other, with the front side being the display surface and the back side being the non-display surface. The fan-out portion 113 is bent and flipped onto the back side of the main body 111 by the bent portion 112, thereby achieving a narrow bezel design for the display module 100.

[0020] The display module 100 also includes a composite support layer 120 disposed in the space between the main body 111 and the fan-out portion 113. The composite support layer 120 can serve functions such as buffering, support, heat dissipation, or electromagnetic shielding.

[0021] The display module 100 has at least one through-hole structure 190, which extends along the thickness direction of the display module 100 and penetrates at least the main body 111, the composite support layer 120, and the fan-out portion 113, thereby forming a continuous channel inside the display module 100. The through-hole structure 190 forms a mounting surface for functional components such as cameras and sensors.

[0022] See Figure 2The through-hole structure 190 includes a first hole segment 191 formed on the main body 111, a second hole segment 192 formed on the composite support layer 120, and a third hole segment 193 formed on the fan-out portion 113. Along the thickness direction of the display module 100, the first hole segment 191, the second hole segment 192, and the third hole segment 193 are sequentially connected. The size of the first hole segment 191 is smaller than the size of the third hole segment 193. In some examples, the first hole segment 191, the second hole segment 192, and the third hole segment 193 are coaxially arranged. The cross-sectional shape of the through-hole structure 190 is circular, elliptical, square, etc. When the cross-sectional shape of the through-hole structure 190 is circular, the diameter of the first hole segment 191 is smaller than the diameter of the third hole segment 193.

[0023] In this embodiment, the display module 100 includes a through-hole structure 190, which penetrates the main body 111, the fan-out portion 113, and the composite support layer 120 located between the main body 111 and the fan-out portion 113 of the display panel 110. This increases the depth of the through-hole structure 190, providing ample Z-axis space for external functional components such as cameras. This allows the components to be partially embedded inside the display module 100, achieving a narrow bezel design while providing a larger installation space for external functional components, which is beneficial for achieving a thinner and lighter design of the display module 100. The size of the first hole segment 191 of the through-hole structure 190 on the main body 111 is smaller than the size of the third hole segment 193 of the through-hole structure 190 on the fan-out portion 113. This reduces the segmentation of the display area caused by the opening in the main body 111, reduces the impact of the opening on display uniformity, brightness consistency, and overall visual experience, and maximizes the protection of display integrity.

[0024] In some embodiments, see Figure 1 and Figure 2The display module 100 also includes a cover plate 150 and a polarizer 130. The cover plate 150 is a transparent protective cover plate, typically made of tempered glass or transparent polyimide film. The polarizer 130 can employ a multi-layer composite film structure, mainly composed of a PVA (polyvinyl alcohol) polarizer layer, a TAC (cellulose triacetate) protective layer, a phase difference compensation film, and a release film, exhibiting high polarization and optical uniformity. The polarizer 130 is located on the side of the main body 111 away from the composite support layer 120, and the cover plate 150 is located on the side of the polarizer 130 away from the main body 111. The polarizer 130 and the cover plate 150 are bonded together by an optical adhesive layer 140. The optical adhesive layer 140 uses OCA optically transparent adhesive, an acrylic pressure-sensitive adhesive with good bonding strength and weather resistance. A through-hole structure 190 correspondingly penetrates the polarizer 130 and the optical adhesive layer 140, ensuring unobstructed light path. The through-hole structure 190 includes a fourth hole segment 194 formed on the polarizer 130 and a fifth hole segment 195 formed on the optical adhesive layer 140. Increasing the size of the through-hole structure 190 provides sufficient Z-axis space for the installation of functional components.

[0025] In other embodiments, the display module 100 further includes a cover plate 150 and a polarizer 130. The polarizer 130 is disposed on the side of the main body 111 away from the composite support layer 120, and the cover plate 150 is disposed on the side of the polarizer 130 away from the main body 111. The polarizer 130 and the cover plate 150 are bonded together by an optical adhesive layer 140. The upper end of the through-hole structure 190 extends to the side of the polarizer 130 away from the cover plate 150.

[0026] In some embodiments, see Figure 1 and Figure 2 To further optimize visual effects and prevent light leakage, the display module 100 may also include a light-shielding layer 160, which is disposed on the side of the cover plate 150 facing the display panel 110. The light-shielding layer 160 may be formed using printing ink or photoresist. The light-shielding layer 160 has a light-transmitting area 161 and a light-shielding area 162, with the light-shielding area 162 surrounding the light-transmitting area 161. The light-transmitting area 161 is aligned with the through-hole structure 190 in the thickness direction, and the projection of the hole wall of the through-hole structure 190 onto the light-shielding layer 160 is located in the light-shielding area 162. The size of the light-transmitting area 161 is smaller than the minimum size of the through-hole structure 190, enabling the light-shielding layer 160 to effectively block the hole wall, preventing users from observing the internal structure from the front and improving aesthetics.

[0027] In some embodiments, see Figure 6 and Figure 7To enhance reliability, the display module 100 also includes an anti-corrosion layer 199. The anti-corrosion layer 199 covers at least a portion of the hole wall of the through-hole structure 190, and its material can be a sealant with good barrier properties, such as MLC adhesive. The anti-corrosion layer 199 effectively prevents moisture and oxygen from intruding along the hole wall, protecting the internal metal circuitry and film layers from corrosion.

[0028] In some sub-examples, the through-hole structure 190 includes a first hole segment 191 formed on the main body 111, a second hole segment 192 formed on the composite support layer 120, and a third hole segment 193 formed on the fan-out portion 113. The first hole segment 191, the second hole segment 192, and the third hole segment 193 are sequentially connected along the thickness direction of the display module 100. An anti-corrosion layer 199 is applied to the first hole segment 191 and the third hole segment 193 to protect the display panel 110 from water and oxygen corrosion and stress cracking.

[0029] In some sub-examples, the anti-corrosion layer 199 coats all the hole walls of the through-hole structure 190. During the application of adhesive, the open end of the through-hole structure 190 away from the cover plate 150 is placed upwards, MCL adhesive is injected into the through-hole structure 190, the display module 100 is tilted, and the display module 100 is rotated so that the MCL adhesive flows and coats the hole walls of the through-hole structure 190 in a rotating manner, and then it is cured by UV light.

[0030] In some embodiments, see Figure 7 The inner surface of the anti-corrosion layer 199, away from the hole wall, lies on the same circumference, forming a regular sealing ring and a through hole with the same inner diameter. The inner wall of the through hole structure 190 is smooth and has uniform dimensions, forming a regular cylindrical channel. This facilitates the smooth assembly and alignment of external components (such as cameras) and avoids jamming or gap problems caused by uneven adhesive layer thickness.

[0031] In other embodiments, the thickness of the anti-corrosion layer 199 at the opening end of the through-hole structure 190 away from the cover plate 150 is greater than the thickness at other locations. This forms a gradient sealing structure, more effectively preventing water and oxygen intrusion and alleviating stress concentration.

[0032] In some embodiments, see Figure 7 The end of the anti-corrosion layer 199 abuts against the light-shielding layer 160 of the light-shielding area 162. The light-shielding layer 160 completely blocks the visual traces of the anti-corrosion layer 199, improving the appearance quality and visual consistency of the product.

[0033] In some embodiments, see Figure 2A conductive tape 170 is provided on the side of the fan-out portion 113 away from the composite support layer 120 for bonding the driver chip. A through-hole structure 190 also penetrates this conductive tape 170. The through-hole structure 190 includes a sixth hole segment 196 formed on the conductive tape 170. This provides maximum Z-axis clearance space for functional components, achieving extreme overall thinning.

[0034] In some embodiments, see Figure 1 and Figure 4 To further strengthen the structure, a bracket 180 is provided on the side of the conductive tape 170 away from the fan-out portion 113, and a through-hole structure 190 also penetrates the bracket 180. The through-hole structure 190 includes a seventh hole segment 197 formed on the bracket 180. The bracket 180 can be a metal bracket 180 or a plastic bracket 180. While protecting the display panel 110, it increases the depth of the through-hole structure 190, improving installation space. The bracket 180 also provides additional mechanical support and impact protection for the opening area, preventing deformation under pressure during assembly or use.

[0035] In some sub-examples, the seventh hole segment 197 on the bracket 180 is the largest on the through-hole structure 190, which facilitates the installation of external functional components into the through-hole structure 190 from the end of the through-hole structure 190.

[0036] In some embodiments, see Figure 2 , Figure 4 , Figure 5 and Figure 6 The composite support layer 120 includes a first back plate 121, a buffer layer 122, a support layer 123, and a second back plate 124 stacked sequentially. A through-hole structure 190 penetrates the composite support layer 120.

[0037] See in some examples Figure 2 , Figure 4 , Figure 5 and Figure 6The display module 100 includes a cover plate 150, a light-shielding layer 160, an optical adhesive layer 140, a polarizer 130, a display panel 110, a composite support layer 120, and conductive tape 170. The composite support layer 120 includes a first back plate 121, a buffer layer 122, a support layer 123, and a second back plate 124. The display panel 110 includes a main body 111, a bent portion 112, and a fan-out portion 113, with the fan-out portion 113 flipped over to the back of the main body 111 via the bent portion 112. The first back plate 121, the buffer layer 122, the support layer 123, and the second back plate 124 are stacked between the main body 111 and the fan-out portion 113. The first back plate 121 is located on the side of the main body 111 facing the fan-out portion 113 and provides support. The buffer layer 122 (such as SCF ultra-clean foam) is located below the first back plate 121 and provides cushioning and filling. A support layer 123 (such as a graphite sheet or metal foil) is disposed below the buffer layer 122 to dissipate heat. A second backplate 124 is disposed on the side of the fan-out portion 113 facing the main body 111 and serves a supporting function. A conductive tape 170 is disposed on the side of the fan-out portion 113 away from the second backplate 124. The conductive tape 170 is suitable for electrical connection with the IC. A polarizer 130 is disposed on the display surface of the main body 111, and the cover plate 150 is connected to the polarizer 130 by an optical adhesive layer 140. A through-hole structure 190 penetrates the optical adhesive layer 140, the polarizer 130, the main body 111, the first backplate 121, the buffer layer 122, the support layer 123, the second backplate 124, the fan-out portion 113, and the conductive tape 170.

[0038] The through-hole structure 190 includes a first hole segment 191 formed in the main body 111, a third hole segment 193 formed in the fan-out portion 113, a second hole segment 192 formed in the composite support layer 120, a sixth hole segment 196 formed in the conductive tape 170, a fourth hole segment 194 formed in the polarizer 130, and a fifth hole segment 195 formed in the optical adhesive layer 140. The second hole segment 192 includes a first sub-hole segment 1921 formed in the first back plate 121, a second sub-hole segment 1922 formed in the buffer layer 122, a third sub-hole segment 1923 formed in the support layer 123, and a fourth sub-hole segment 1924 formed in the second back plate 124. The fifth hole segment 195, the fourth hole segment 194, the first hole segment 191, the first sub-hole segment 1921, the second sub-hole segment 1922, the third sub-hole segment 1923, the fourth sub-hole segment 1924, the third hole segment 193 and the sixth hole segment 196 are connected in sequence.

[0039] In some embodiments, see Figure 6 The through-hole structure 190 includes a fifth hole segment 195 located in the optical adhesive layer 140, a fourth hole segment 194 located in the polarizer 130, and a first sub-hole segment 1921 located on the first back plate 121, wherein the first sub-hole segment 1921, the first hole segment 191, the fourth hole segment 194, and the fifth hole segment 195 are all the same size.

[0040] See some sub-examples. Figure 6 After the optical adhesive layer 140, polarizer 130, main body 111 and first back plate 121 are fully bonded together, they are cut so that the diameters of the fifth hole segment 195, the fourth hole segment 194, the first hole segment 191 and the first sub-hole segment 1921 are the same and the edges of the openings are aligned, reducing the complexity of the process.

[0041] In this embodiment, the dimensions of the first sub-hole segment 1921, the first hole segment 191, the fourth hole segment 194, and the fifth hole segment 195 of the through-hole structure 190 are all the same, which not only facilitates processing but also helps to reduce the size of the light-shielding area 162 and achieve a narrow bezel effect.

[0042] In some embodiments, see Figure 5 The dimensions of the first sub-hole segment 1921, the first hole segment 191, and the fourth hole segment 194 are the same.

[0043] See some sub-examples. Figure 5 After the polarizer 130, the main body 111 and the first back plate 121 are fully bonded together, they are cut so that the diameters of the fourth hole segment 194, the first hole segment 191 and the first sub-hole segment 1921 are the same, reducing the complexity of the process.

[0044] In this embodiment, the dimensions of the first sub-hole segment 1921, the first hole segment 191, and the fourth hole segment 194 of the through-hole structure 190 are all the same, which not only facilitates processing but also helps to reduce the size of the light-shielding area 162 and achieve a narrow bezel effect.

[0045] In some embodiments, see Figure 5 and Figure 6 The through-hole structure 190 includes a fourth sub-hole section 1924 located on the second back plate 124 and a third hole section 193 located on the fan-out portion 113. The third hole section 193 and the fourth sub-hole section 1924 have the same dimensions.

[0046] See some sub-examples. Figure 5 and Figure 6 The second back plate 124 and the fan-out section 113 are fully bonded together and then cut, so that the diameter of the fourth sub-hole section 1924 and the third hole section 193 are the same, reducing the complexity of the process.

[0047] In this embodiment, the fourth sub-hole segment 1924 and the third hole segment 193 of the through-hole structure 190 are the same size, which facilitates processing and also helps to reduce the size of the light-shielding area 162, thus achieving a narrow bezel effect.

[0048] In some embodiments, see Figure 3To further enhance the mechanical strength of the opening area, the composite support layer 120 also includes a metal layer 125 added between the buffer layer 122 and the support layer 123, and the through-hole structure 190 also penetrates this metal layer 125. One or more metal layers 125 can be provided, and the metal layer 125 can be an aluminum sheet or a steel sheet. The hardness of the metal layer 125 is greater than the hardness of the other layers of the composite support layer 120.

[0049] In this embodiment, the composite support layer 120 includes a metal layer 125, which can be made of materials such as stainless steel or aluminum alloy. The metal layer 125 provides overall rigidity and bending strength to the display module 100, preventing excessive deformation of the display module 100 under stress or during assembly, and ensuring the shape of the functional hole edges. By integrating the backplate, buffer, and reinforcement functions into the composite support layer 120, the number of components and assembly steps are reduced, improving assembly accuracy and production efficiency.

[0050] See in some examples Figure 3 The composite support layer 120 includes a first back plate 121, a buffer layer 122, a metal layer 125, a support layer 123, and a second back plate 124. The display panel 110 includes a main body 111, a bent portion 112, and a fan-out portion 113, with the fan-out portion 113 flipped onto the back of the main body 111 via the bent portion 112. The first back plate 121, buffer layer 122, support layer 123, metal layer 125, and second back plate 124 are stacked between the main body 111 and the fan-out portion 113. The through-hole structure 190 penetrates the optical adhesive layer 140, the polarizer 130, the main body 111, the first back plate 121, the buffer layer 122, the metal layer 125, the support layer 123, the second back plate 124, the fan-out portion 113, and the conductive tape 170. The through-hole structure 190 includes a first hole segment 191 formed in the main body 111, a third hole segment 193 formed in the fan-out portion 113, a second hole segment 192 formed in the composite support layer 120, a sixth hole segment 196 formed in the conductive tape 170, a fourth hole segment 194 formed in the polarizer 130, and a fifth hole segment 195 formed in the optical adhesive layer 140. The second hole segment 192 includes a first sub-hole segment 1921 formed in the first back plate 121, a second sub-hole segment 1922 formed in the buffer layer 122, a third sub-hole segment 1923 formed in the support layer 123, a fourth sub-hole segment 1924 formed in the second back plate 124, and a fifth sub-hole segment 1925 formed in the metal layer 125. The sixth hole segment 196, the fifth hole segment 195, the first hole segment 191, the first sub-hole segment 1921, the second sub-hole segment 1922, the fifth sub-hole segment 1925, the third sub-hole segment 1923, the fourth sub-hole segment 1924, the third hole segment 193, and the fourth hole segment 194 are connected in sequence.

[0051] In this embodiment, a composite support layer 120 is provided between the main body 111 and the fan-out portion 113 to form a composite support structure, which significantly improves the impact resistance and drop resistance of the through-hole area and avoids damage caused by stress concentration.

[0052] This invention also provides an electronic device, such as a mobile phone, tablet computer, wearable device, etc., which includes any of the display modules 100 described above. Because the display module 100 provides deeper clearance space, functional components such as the front-facing camera and sensors within the electronic device can be designed to be thinner or have greater performance capacity, thereby achieving an effective reduction in the overall thickness of the electronic device without sacrificing reliability.

[0053] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0054] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0055] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0056] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A display module, characterized in that, include: The display panel includes a main body, a bent portion, and a fan-out portion connected in sequence, wherein the fan-out portion is bent and flipped to the back of the main body through the bent portion; A composite support layer is disposed between the main body and the fan-out portion; The through-hole structure extends at least through the main body, the composite support layer, and the fan-out portion. The through-hole structure includes a first hole segment on the main body and a third hole segment on the fan-out portion, wherein the size of the first hole segment is smaller than the size of the third hole segment.

2. The display module according to claim 1, characterized in that, It also includes an anti-corrosion layer that coats at least a portion of the hole walls of the through-hole structure.

3. The display module according to claim 2, characterized in that, The side of the anti-corrosion layer away from the hole wall is located on the same circumference.

4. The display module according to claim 1, characterized in that, It also includes a cover plate and a polarizer. The polarizer is disposed on the side of the main body away from the composite support layer, and the cover plate is disposed on the side of the polarizer away from the main body. The polarizer and the cover plate are connected by an optical adhesive layer, and the through-hole structure penetrates the polarizer and the optical adhesive layer.

5. The display module according to claim 4, characterized in that, It also includes a light-shielding layer disposed on the side of the polarizer near the display panel. The light-shielding layer includes a light-shielding area and a light-transmitting area. The light-transmitting area and the through-hole structure are aligned and disposed, and the projection of the hole wall of the through-hole structure onto the light-shielding layer is located in the light-shielding area.

6. The display module according to claim 4, characterized in that, The composite support layer includes a first back plate, a buffer layer, a support layer, and a second back plate. The first back plate is disposed on the back of the main body. The buffer layer is disposed on the side of the first back plate away from the main body. The support layer is disposed on the side of the buffer layer away from the first back plate. The second back plate is disposed between the support layer and the fan-out portion. The through-hole structure penetrates the first back plate, the buffer layer, the support layer, and the second back plate.

7. The display module according to claim 6, characterized in that, The composite support layer further includes a metal layer disposed between the buffer layer and the support layer, and the through-hole structure penetrates the metal layer.

8. The display module according to claim 6, characterized in that, The through-hole structure includes a fifth hole segment located in the optical adhesive layer, a fourth hole segment located in the polarizer, and a first sub-hole segment located in the first back plate, wherein the first sub-hole segment, the first hole segment, the fourth hole segment, and the fifth hole segment are all the same size or the first sub-hole segment, the first hole segment, and the fourth hole segment are all the same size; And / or, the through-hole structure includes a fourth sub-hole segment located on the second back plate, wherein the third hole segment and the fourth sub-hole segment are of the same size.

9. The display module according to claim 1, characterized in that, It also includes a conductive tape disposed on the side of the fan-out portion away from the composite support layer, and the through-hole structure penetrates the conductive tape.

10. An electronic device, characterized in that, Includes the display module as described in any one of claims 1 to 9.

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