Display module and display device

Abstract

The invention relates to a display module and a display device.The display module comprises a display panel, a supporting body and an auxiliary supporting piece, the display panel comprises a first non-bending area, a bending area and a second non-bending area which are connected in sequence, and the two sides, in the first direction, of the supporting body are attached to the first non-bending area and the second non-bending area correspondingly; one part of the side face of the auxiliary supporting piece is fixedly connected to the side, facing the bending area, of the supporting body, and the other part of the side face of the auxiliary supporting piece is fixedly connected to the side, close to the second non-bending area, of the first non-bending area. According to the display panel, the position, close to the bending area, of the first non-bending area has high mechanical performance, in the process that production of the display module is completed and a falling ball test is carried out, bad test results such as bright spots and dark spots are not prone to occurring in the corresponding positions, and the display panel has the good display effect.

Description

Technical Field

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

[0002] OLED (Organic Light-Emitting Diode) display modules have the advantages of low power consumption, fast response speed, wide operating range, and easy realization of flexible display.

[0003] Currently, the OLED display industry is seeking the effect of narrow borders to increase the screen-to-body ratio. In the related solutions of bending the bonding area of ​​the display panel to the back of the display area of ​​the display panel to achieve narrow borders, continuously reducing the bending radius of the display panel is the current mainstream technology direction. However, as the bending radius of the display panel decreases, the thickness of the display module is gradually compressed. The stress generated by the display panel during the bending process can easily lead to peeling between the display panel and the corresponding film layer, affecting the display effect of the display area and the mechanical properties of the display module. Summary of the invention

[0004] The embodiments of the present application provide a display module and a display device, which can reduce the risk of peeling between the display panel and the corresponding support body caused by the stress generated during the bending process of the display panel, and have strong mechanical properties and relatively good display effects.

[0005] In a first aspect, an embodiment of the present application provides a display module, comprising: a display panel, comprising a first non-bending area, a bending area, and a second non-bending area connected in sequence; a support body, the two sides of the support body along a first direction are respectively adhered to the first non-bending area and the second non-bending area; an auxiliary support member, a part of the side surface of the auxiliary support member is fixedly connected to a side of the support body facing the bending area, and another part of the side surface of the auxiliary support member is fixedly connected to a side of the first non-bending area close to the second non-bending area; wherein the first direction is perpendicular to the side of the first non-bending area close to the second non-bending area.

[0006] In some embodiments, the support body includes a first support layer adhered to the first non-bending area, and the auxiliary support member includes a first colloid, a portion of the side of the first colloid is bonded to the end of the first support layer close to the bending area, and another portion of the side of the first colloid is bonded to a side of the first non-bending area close to the second non-bending area.

[0007] In some embodiments, the material of the first colloid is photosensitive adhesive.

[0008] In some embodiments, the number of the first colloid is one, and the first colloid is continuously disposed along the axis direction of the bending zone.

[0009] In some embodiments, the number of the first colloids is more than two, and the plurality of first colloids are distributed at intervals along the axis direction of the bending zone.

[0010] In some embodiments, a thickness of the first supporting layer along the first direction is H1, satisfying 35 μm≤H1≤90 μm.

[0011] In some embodiments, the bending zone is located on one side of the support body along the second direction, the second direction is perpendicular to the first direction, and along the second direction, the distance between the end of the first support layer close to the bending zone and the end of the bending zone close to the first non-bending zone is d1, satisfying 50μm≤d1≤100μm.

[0012] In some embodiments, the width of the first colloid along the second direction is d2, satisfying -20 μm≤d1-d2≤20 μm.

[0013] In some embodiments, the support body also includes a first buffer layer and a rigid layer, and the first buffer layer is respectively adhered to the first support layer and the rigid layer on both sides along the first direction, and the auxiliary support member also includes a second colloid, a portion of the side surface of the second colloid is bonded to the end of the first buffer layer close to the bending zone and the end of the rigid layer close to the bending zone, and another portion of the side surface of the second colloid is bonded to one side of the first support layer close to the second non-bending zone.

[0014] In some embodiments, the second colloid is made of photosensitive adhesive.

[0015] In some embodiments, the material of the first buffer layer is pressure-sensitive adhesive.

[0016] In some embodiments, the material of the rigid layer is stainless steel.

[0017] In some embodiments, the number of the second colloid is one, and the second colloid is continuously arranged along the axis direction of the bending zone.

[0018] In some embodiments, the number of the second colloids is more than two, and the plurality of second colloids are distributed at intervals along the axis direction of the bending zone.

[0019] In some embodiments, an end of the first buffer layer close to the bending zone is flush with an end of the rigid layer close to the bending zone.

[0020] In some embodiments, a thickness of the first buffer layer along the first direction is H2, satisfying 10 μm≤H2≤30 μm.

[0021] In some embodiments, a thickness of the rigid layer along the first direction is H3, satisfying 60 μm≤H3≤100 μm.

[0022] In some embodiments, the bending zone is located on one side of the support body along the second direction, the second direction is perpendicular to the first direction, and along the second direction, the distance between the end of the first buffer layer close to the bending zone and the end of the first support layer close to the bending zone is d3, satisfying 100μm≤d3≤200μm.

[0023] In some embodiments, the width of the second colloid along the second direction is d4, satisfying -20 μm≤d3-d4≤20 μm.

[0024] In some embodiments, the second colloid is bonded to the first colloid; or the first colloid and the second colloid are integrally formed.

[0025] In some embodiments, the support body further includes a second buffer layer and a second support layer attached to the second non-bending region, and the second buffer layer is attached to the rigid layer and the second support layer on both sides along the first direction.

[0026] In some embodiments, the second buffer layer is made of pressure-sensitive adhesive.

[0027] In some embodiments, an end of the second buffer layer close to the bending zone is flush with an end of the rigid layer close to the bending zone.

[0028] In some embodiments, a thickness of the second buffer layer along the first direction is H4, and 10 μm≤H4≤30 μm.

[0029] In some embodiments, a thickness of the second supporting layer along the first direction is H5, and 35 μm≤H5≤90 μm.

[0030] In some embodiments, the bending radius of the bending zone is R1, satisfying R1≤100 μm; and / or the first support layer and the second support layer have the same thickness along the first direction; and / or the first buffer layer and the second buffer layer have the same thickness along the first direction.

[0031] In some embodiments, a curved support layer is attached to a side of the bending region facing away from the support body.

[0032] In some embodiments, a polarizing layer is laminated on a side of the first non-bending region facing away from the support body.

[0033] In some embodiments, a cover plate is attached to a side of the polarizing layer facing away from the first non-bending region.

[0034] In a second aspect, an embodiment of the present application provides a display device, comprising the above-mentioned display module.

[0035] The embodiments of the present application provide a display module and a display device, wherein the display module includes a display panel, a support body and an auxiliary support member, the display panel includes a first non-bending area, a bending area and a second non-bending area connected in sequence, the two sides of the support body along the first direction are respectively attached to the first non-bending area and the second non-bending area, a part of the side surface of the auxiliary support member is fixedly connected to the side of the support body facing the bending area, and another part of the side surface of the auxiliary support member is fixedly connected to the side of the first non-bending area close to the second non-bending area. On the one hand, the auxiliary support member can improve the connection stability between the display panel and the support body, thereby reducing the risk of peeling between the display panel and the corresponding support body caused by the stress generated by the display panel during the bending process; on the other hand, the auxiliary support member can play a certain supporting role on the first non-bending area, and can reduce the risk of pits appearing in the first non-bending area close to the bending area during the process of the display module being produced and performing a drop ball test. In summary, since the display panel is not prone to problems such as peeling and pits, the position of the first non-bending zone close to the bending zone has stronger mechanical properties. During the process of the display module being produced and undergoing a drop ball test, the corresponding position is not prone to adverse test results such as bright spots and dark spots, so that the display panel has a relatively good display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0037] Figure 1 A schematic diagram of the structure of a display module provided in some embodiments of the present application;

[0038] Figure 2 A schematic diagram of the structure of a display module provided in some other embodiments of the present application;

[0039] Figure 3 This is a schematic diagram of the structure of a display module provided in some other embodiments of the present application.

[0040] In the figure:

[0041] 1. display panel; 11. first non-bending area; 111. display area; 12. bending area; 13. second non-bending area;

[0042] 2. Support body; 21. First support layer; 22. First buffer layer; 23. Rigid layer; 24. Second buffer layer; 25. Second support layer;

[0043] 3. Auxiliary support member; 31. First colloid; 32. Second colloid;

[0044] 4. Bending support layer; 5. Polarizing layer; 6. Optical adhesive layer; 7. Cover plate;

[0045] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0046] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0048] Currently, the OLED display industry is seeking the effect of narrow borders to increase the screen-to-body ratio. In the related solutions of bending the bonding area of ​​the display panel to the back of the display area of ​​the display panel to achieve narrow borders, continuously reducing the bending radius of the display panel is the current mainstream technology direction.

[0049] Research has found that as the bending radius of the display panel decreases, the thickness of the display module is gradually compressed. The stress generated by the display panel during the bending process can easily lead to peeling between the display panel and the corresponding film layer, affecting the display effect of the display area and the mechanical properties of the display module.

[0050] In order to solve the problems in the prior art, the embodiments of the present application provide a display module and a display device, which are described in detail below in conjunction with the accompanying drawings.

[0051] Figure 1 A schematic diagram of the structure of a display module provided in some embodiments of the present application; Figure 2A schematic diagram of the structure of a display module provided in some other embodiments of the present application.

[0052] See also Figure 1 and Figure 2 The embodiment of the present application provides a display module, including a display panel 1, a support body 2 and an auxiliary support member 3, wherein the display panel 1 includes a first non-bending area 11, a bending area 12 and a second non-bending area 13 connected in sequence; the support body 2 is respectively attached to the first non-bending area 11 and the second non-bending area 13 on both sides along the first direction X; a part of the side surface of the auxiliary support member 3 is fixed to the side of the support body 2 facing the bending area 12, and another part of the side surface of the auxiliary support member 3 is fixed to the side of the first non-bending area 11 close to the second non-bending area 13; wherein the first direction X is perpendicular to the side of the first non-bending area 11 close to the second non-bending area 13.

[0053] On the one hand, the auxiliary support member 3 can improve the connection stability between the display panel 1 and the support body 2, thereby reducing the risk of peeling between the display panel 1 and the corresponding support body 2 caused by the stress generated during the bending process of the display panel 1; on the other hand, the auxiliary support member 3 can play a certain supporting role for the first non-bending area 11, and can reduce the risk of pits in the first non-bending area 11 near the bending area 12 during the production of the display module and the ball drop test. In summary, since the display panel 1 is not prone to peeling and pits, the first non-bending area 11 near the bending area 12 has strong mechanical properties. During the production of the display module and the ball drop test, the corresponding position is not prone to adverse test results such as bright spots and dark spots, so that the display panel 1 has a relatively good display effect.

[0054] In some embodiments, the display area 111 is located in the first non-bending area 11 for displaying images; the bonding area is located in the second non-bending area 13 for connecting a driving chip or a flexible circuit board.

[0055] The display module can be applied to devices with display functions such as televisions, mobile phones, computers, laptops, tablet computers, car computers, personal digital assistants (PDA), etc. This application does not limit the display devices with the above display modules.

[0056] In some embodiments, the support body 2 includes a first support layer 21 adhered to the first non-bending zone 11, and the auxiliary support member 3 includes a first colloid 31, a portion of the side of the first colloid 31 is bonded to the end of the first support layer 21 close to the bending zone 12, and another portion of the side of the first colloid 31 is bonded to the side of the first non-bending zone 11 close to the second non-bending zone 13. It is understandable that if the end of the first support layer 21 near the bending zone 12 and the end of the first non-bending zone 11 near the bending zone 12 are designed to be flush, then in the actual production process, due to the factor of processing error, the first support layer 21 may cross the end of the first non-bending zone 11 near the bending zone 12 and abut against the bending zone 12, resulting in the stress generated during the bending process of the bending zone 12 being easily transmitted to the connection position between the display panel 1 and the first support layer 21, which will further increase the risk of peeling between the display panel 1 and the corresponding support body 2. Therefore, it is necessary to set a preset distance between the end of the first support layer 21 near the bending zone 12 and the end of the first non-bending zone 11 near the bending zone 12 to reduce the stress transmitted to the connection position of the display panel and the first support layer during the bending process of the bending zone 12. The first support layer 21 can play a good supporting role on the first non-bending zone 11, and the first colloid 31 can improve the connection stability between the display panel 1 and the first support layer 21, and play an auxiliary supporting role on the first non-bending zone 11. Specifically, the first support layer 21 may be a support film (Barrier Projection Film, BPF), and its material may be polyimide (PI) or polyethyleneterephthalate (PET). In some other embodiments, the auxiliary support member 3 is convexly disposed on the display panel 1, and one side of the auxiliary support member 3 is bonded to the side of the support body 2 facing the bending area 12.

[0057] In some embodiments, an end of the first supporting layer 21 close to the bending region 12 is located between an end of the first non-bending region 11 close to the bending region 12 and an end of the display region 111 close to the bending region 12 .

[0058] In some embodiments, the material of the first colloid 31 is photosensitive adhesive, that is, the first colloid 31 can be a liquid photosensitive adhesive that is coated and cured to form a colloid with high strength. The photosensitive adhesive has high bonding efficiency and high bonding strength. After bonding, it has high toughness, low temperature resistance, high temperature and high humidity resistance and other properties.

[0059] In some embodiments, the number of the first colloids 31 is one, and the first colloids 31 are continuously arranged along the axial direction of the bending area 12, that is, the first colloids 31 included in the auxiliary support member 3 are in an integrated form, which can achieve a better connection effect for the first support layer 21 and the display panel 1.

[0060] In some embodiments, the number of the first colloids 31 is more than two, and the multiple first colloids 31 are spaced apart along the axis of the bending area 12, which can ensure that the first support layer 21 and the display panel 1 can achieve a good connection effect while relatively reducing the amount of photosensitive adhesive, thereby reducing the curing time of the photosensitive adhesive and improving the bonding efficiency. Figure 1 and Figure 2 It can be seen that the bending area 12 is located at one side of the support body 2 along the second direction Y, and the first direction X, the second direction Y and the axis direction of the bending area 12 are perpendicular to each other.

[0061] In some embodiments, the thickness of the first support layer 21 along the first direction X is H1, satisfying 35μm≤H1≤90μm. When the thickness of the first support layer 21 along the first direction X is less than 35μm, the supporting effect of the first support layer 21 on the first non-bending area 11 is relatively poor; when the thickness of the first support layer 21 along the first direction X is greater than 90μm, it is easy to cause the bending radius of the bending area 12 to be too large. Optionally, the thickness of the first support layer 21 along the first direction X can be 35μm, 40μm, 50μm, 60μm, 70μm, 80μm or 90μm.

[0062] In some embodiments, the bending area 12 is located on one side of the support body 2 along the second direction Y, the second direction Y is perpendicular to the first direction X, and along the second direction Y, the distance between the end of the first support layer 21 close to the bending area 12 and the end of the bending area 12 close to the first non-bending area 11 is d1, which satisfies 50μm≤d1≤100μm. When d1 is less than 50μm, the stress generated during the bending process of the bending area 12 is easily transmitted to the connection position between the display panel 1 and the first support layer 21; when d1 is greater than 100μm, the support area of ​​the first support layer 21 for the display panel 1 is reduced, resulting in a worse overall support effect of the first support layer 21. In other words, in the state of 50μm≤d1≤100μm, the connection position between the display panel 1 and the first support layer 21 is not easily subjected to the bending stress of the bending area 12 and peeling occurs, and the first support layer 21 can provide a good support effect for the display panel 1. Alternatively, d1 may be 50 μm, 60 μm, 70 μm, 80 μm, 90 μm or 100 μm.

[0063] In some embodiments, the width of the first colloid 31 along the second direction Y is d2, wherein d2 satisfies -20μm≤d1-d2≤20μm. When the difference between d1 and d2 is less than -20μm, more of the first colloid 31 is on the back side of the bending zone 12. In the process of bending the bending zone 12, the first colloid 31 will generate a large stress to resist the bending of the bending zone 12, which may easily cause damage to the display panel 1; when the difference between d1 and d2 is greater than 20μm, the support area of ​​the first colloid 31 on the display panel 1 is reduced, resulting in a poor support effect of the first colloid 31 on the display panel 1. Optionally, the difference between d1 and d2 may be -20μm, -10μm, 0μm, 10μm or 20μm.

[0064] In some embodiments, the support body 2 also includes a first buffer layer 22 and a rigid layer 23, and the two sides of the first buffer layer 22 along the first direction X are respectively adhered to the first support layer 21 and the rigid layer 23, and the auxiliary support member 3 also includes a second colloid 32, and a part of the side of the second colloid 32 is bonded to the end of the first buffer layer 22 close to the bending zone 12 and the end of the rigid layer 23 close to the bending zone 12, and another part of the side of the second colloid 32 is bonded to the side of the first support layer 21 close to the second non-bending zone 13. It is understandable that if the end of the first buffer layer 22 near the bending zone 12 and the end of the first support layer 21 near the bending zone 12 are designed to be flush, then in the actual production process, due to the factor of processing error, the first buffer layer 22 may cross the end of the first non-bending zone 11 near the bending zone 12 and abut against the bending zone 12, affecting the bending process of the bending zone 12. Therefore, it is necessary to space a preset distance between the end of the first buffer layer 22 near the bending zone 12 and the end of the first support layer 21 near the bending zone 12 to reduce the risk of the first buffer layer 22 affecting the bending process of the bending zone 12. When the display panel 1 is impacted by external force, the first buffer layer 22 can play a certain degree of buffering role; the rigid layer 23 can further improve the support role of the display panel 1 through the first buffer layer 22 and the first support layer 21; in addition, the first support layer 21 and the rigid layer 23 are connected by the second colloid 32, which can improve the stability of the first support layer 21, so that the first support layer 21 can play a better supporting role for the display panel 1.

[0065] In some embodiments, the material of the second colloid 32 is photosensitive adhesive, that is, the second colloid 32 can be a liquid photosensitive adhesive that is coated and cured to form a colloid with high strength. The photosensitive adhesive has high bonding efficiency and high bonding strength. After bonding, it has high toughness, low temperature resistance, high temperature and high humidity resistance and other properties.

[0066] In some embodiments, the material of the first buffer layer 22 is pressure-sensitive adhesive, which is used as the first buffer layer 22 for easy bonding and relatively improved production efficiency. Compared with materials such as silicone gel and foam, pressure-sensitive adhesive is easy to process thinner, and has relatively small stress deformation, and the elastic stage of the stress-strain curve is relatively long, which can provide a better shock-absorbing effect on the display panel 1.

[0067] In some embodiments, the rigid layer 23 is made of stainless steel. Compared with using copper as the rigid layer 23, stainless steel has greater rigidity, has stronger impact resistance while reducing thickness, and has a better supporting effect on the display panel 1. In addition, the rigid layer made of stainless steel has good thermal conductivity and can quickly transfer heat from areas with higher temperatures on the display panel to reduce the risk of high temperatures in local areas of the display panel.

[0068] In some embodiments, the number of the second colloids 32 is one, and the second colloids 32 are continuously arranged along the axial direction of the bending zone 12. That is, the second colloids 32 included in the auxiliary support member 3 are in an integrated form, which can achieve a better connection effect for the first support layer 21 and the rigid layer 23.

[0069] In some embodiments, the number of the second colloids 32 is more than two, and multiple second colloids 32 are distributed at intervals along the axial direction of the bending zone 12. While ensuring that the first support layer 21 and the rigid layer 23 can achieve a better connection effect, the amount of photosensitive adhesive used can be relatively reduced, thereby shortening the curing time of the photosensitive adhesive and improving the bonding efficiency.

[0070] In some embodiments, the end of the first buffer layer 22 near the bending zone 12 is flush with the end of the rigid layer 23 near the bending zone 12. During the production of the display module, the first buffer layer 22 and the rigid layer 23 can be produced in combination and cut as a whole according to the required length, thereby achieving higher production efficiency.

[0071] In some embodiments, the thickness of the first buffer layer 22 along the first direction X is H2, satisfying 10μm≤H2≤30μm. When the thickness of the first buffer layer 22 along the first direction X is less than 10μm, the first buffer layer 22 is not easy to process and produce, and the buffering effect is poor; when the thickness of the first buffer layer 22 along the first direction X is greater than 30μm, the bending radius of the bending area 12 will be relatively increased. Optionally, the thickness of the first buffer layer 22 along the first direction X can be 10μm, 15μm, 20μm, 25μm or 30μm.

[0072] In some embodiments, the thickness of the rigid layer 23 along the first direction X is H3, satisfying 60μm≤H3≤100μm. When the thickness of the rigid layer 23 along the first direction X is less than 60μm, the rigid layer 23 is too thin, resulting in low support strength; when the thickness of the rigid layer 23 along the first direction X is greater than 100μm, the bending radius of the bending area 12 will be relatively increased. Optionally, the thickness of the rigid layer 23 along the first direction X can be 60μm, 70μm, 80μm, 90μm or 100μm.

[0073] In some embodiments, the bending zone 12 is located on one side of the support body 2 along the second direction Y, the second direction Y is perpendicular to the first direction X, and along the second direction Y, the distance between the end of the first buffer layer 22 close to the bending zone 12 and the end of the first support layer 21 close to the bending zone 12 is d3, which satisfies 100μm≤d3≤200μm. When d3 is less than 100μm, the second colloid 32 has a poor supporting effect on the first support layer 21, and due to processing errors, the first buffer layer 22 is easy to cross the first support layer 21 and be located close to the bending zone 12, which is easy to affect the bending process of the bending zone 12; when d3 is greater than 200μm, the supporting area of ​​the rigid layer 23 on the first support layer 21 is reduced, resulting in a poor supporting effect of the rigid layer 23 on the first support layer 21. That is to say, when 100 μm ≤ d3 ≤ 200 μm, the first buffer layer 22 is not easy to cross the first support layer 21 to affect the bending process of the bending area 12, which can improve the production yield of the display device; and the rigid layer 23 has a good supporting effect on the first support layer 21. Optionally, d3 can be 100 μm, 110 μm, 120 μm, 130 μm, 140 μm, 150 μm, 160 μm, 170 μm, 180 μm, 190 μm or 200 μm.

[0074] In some embodiments, the width of the second colloid 32 along the second direction Y is d4, wherein d4 satisfies -20μm≤d3-d4≤20μm. When the difference between d3 and d4 is less than -20μm, the second colloid 32 is easy to flow along the first colloid 31 to the bending zone 12 before solidification and solidify in the bending zone 12 and the surface of the first colloid 31, that is, after solidification, the second colloid 32 is simultaneously bonded to the first buffer layer 22, the rigid layer 23, the first support layer 21, the first colloid 31 and the bending zone 12. In the process of bending the bending zone 12, the second colloid 32 will generate a large stress to resist the bending of the bending zone 12, which is easy to cause damage to the display panel 1; when the difference between d3 and d4 is greater than 20μm, the support area of ​​the second colloid 32 on the first support layer 21 is reduced, resulting in a weaker support effect of the second colloid 32 on the first support layer 21. Optionally, the difference between d3 and d4 may be -20 μm, -10 μm, 0 μm, 10 μm or 20 μm.

[0075] In some embodiments, the second colloid 32 is bonded to the first colloid 31. Specifically, in this embodiment, -20 μm ≤ d3-d4 < 0, that is, along the second direction Y, the portion of the second colloid 32 extending out of the first supporting layer 21 is bonded to the first colloid 31. When the display panel 1 is subjected to external pressure, part of the pressure can be transmitted to the rigid layer 23 through the first colloid 31 and the second colloid 32, which can further improve the supporting performance of the first colloid 31 on the display panel 1.

[0076] In some embodiments, the first colloid 31 and the second colloid 32 are integrally formed, which can relatively simplify the production process and improve production efficiency.

[0077] In some embodiments, the support body 2 further includes a second buffer layer 24 and a second support layer 25 attached to the second non-bending area 13, and the second buffer layer 24 is attached to the rigid layer 23 and the second support layer 25 on both sides along the first direction X. The second support layer 25 can provide a good support for the second non-bending area 13; when the display panel 1 is impacted by an external force, the second buffer layer 24 can provide a certain degree of buffering; the rigid layer 23 can further improve the support for the second non-bending area 13 through the second buffer layer 24 and the second support layer 25. Specifically, the second support layer 25 can be a support film (Barrier Projection Film, BPF), and its material can be polyimide (Polyimide, PI) or polyethylene terephthalate (Polyethylene terephthalate, PET).

[0078] In some embodiments, the material of the second buffer layer 24 is pressure-sensitive adhesive, which is convenient for bonding and can relatively improve production efficiency. Compared with materials such as silicone gel and foam, pressure-sensitive adhesive is easy to process thinner, and has relatively small stress deformation, and the elastic stage of the stress-strain curve is relatively long, which can provide a better shock-absorbing effect for the display panel 1.

[0079] In some embodiments, the end of the second buffer layer 24 close to the bending zone 12 is flush with the end of the rigid layer 23 close to the bending zone 12 , so that the rigid layer 23 can provide better support to the second support layer 25 through the second buffer layer 24 .

[0080] In some embodiments, the thickness of the second buffer layer 24 along the first direction X is H4, 10μm≤H4≤30μm. When the thickness of the second buffer layer 24 along the first direction X is less than 10μm, the second buffer layer 24 is not easy to process and produce, and the buffering effect is poor; when the thickness of the second buffer layer 24 along the first direction X is greater than 30μm, the bending radius of the bending area 12 will be relatively increased. Optionally, the thickness of the second buffer layer 24 along the first direction X can be 10μm, 15μm, 20μm, 25μm or 30μm.

[0081] In some embodiments, the thickness of the second supporting layer 25 along the first direction X is H5, 35μm≤H5≤90μm. When the thickness of the second supporting layer 25 along the first direction X is less than 35μm, the supporting effect of the second supporting layer 25 on the second non-bending area 13 is relatively poor; when the thickness of the second supporting layer 25 along the first direction X is greater than 90μm, it is easy to cause the bending radius of the bending area 12 to be too large. Optionally, the thickness of the second supporting layer 25 along the first direction X can be 35μm, 40μm, 50μm, 60μm, 70μm, 80μm or 90μm.

[0082] In some embodiments, the bending radius of the bending area 12 is R1, satisfying R1≤100μm, that is, the distance between the first non-bending area 11 and the second non-bending area 13 is less than or equal to 200μm, which can achieve a better narrow frame effect to increase the screen-to-body ratio.

[0083] In some embodiments, the first supporting layer 21 and the second supporting layer 25 have the same thickness along the first direction X. That is, in the process of producing the display module, the materials of the first supporting layer 21 and the second supporting layer 25 can be used interchangeably, which can relatively reduce production costs.

[0084] In some embodiments, the first buffer layer 22 and the second buffer layer 24 have the same thickness along the first direction X. That is, during the production of the display module, the materials of the first buffer layer 22 and the second buffer layer 24 can be used interchangeably, which can relatively reduce production costs.

[0085] Figure 3 This is a schematic diagram of the structure of a display module provided in some other embodiments of the present application.

[0086] like Figure 3 As shown, in some embodiments, a bending support layer 4 is attached to the side of the bending area 12 facing away from the support body 2 to improve the stability of the bending area 12. Specifically, the material of the bending support layer 4 can be acrylic resin or epoxy resin.

[0087] In some embodiments, a polarizing layer 5 is attached to the side of the first non-bending region 11 facing away from the support body 2. Specifically, the polarizing layer 5 can be a polarizer or a film layer with polarizing effect. This application does not limit this.

[0088] In some embodiments, a cover plate 7 is bonded to the side of the polarizing layer 5 facing away from the first non-bending region 11 , wherein the polarizing layer 5 and the first non-bending region 11 may be bonded via an optical adhesive layer 6 , and the cover plate 7 may be a glass cover plate.

[0089] The embodiment of the present application further provides a display device, comprising the display module in the above embodiment. Since the display device comprises the display module in the above embodiment, it at least has all the beneficial effects brought by the above embodiment, which will not be described one by one here.

[0090] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A display module, characterized in that: include: The display panel comprises a first non-bending area, a bending area and a second non-bending area connected in sequence; A support body, wherein two sides of the support body along a first direction are respectively attached to the first non-bending area and the second non-bending area; An auxiliary support member, wherein a portion of the side surface of the auxiliary support member is fixedly connected to a side of the support body facing the bending area, and another portion of the side surface of the auxiliary support member is fixedly connected to a side of the first non-bending area close to the second non-bending area; The first direction is perpendicular to a side of the first non-bending area close to the second non-bending area.

2. The display module according to claim 1, characterized in that: The support body includes a first support layer attached to the first non-bending area, and the auxiliary support member includes a first colloid, a part of the side surface of the first colloid is bonded to the end of the first support layer close to the bending area, and another part of the side surface of the first colloid is bonded to a side of the first non-bending area close to the second non-bending area; Preferably, the material of the first colloid is photosensitive adhesive; Preferably, the number of the first colloids is one, and the first colloids are continuously arranged along the axis direction of the bending zone; or, the number of the first colloids is more than two, and a plurality of the first colloids are spaced apart along the axis direction of the bending zone; Preferably, a thickness of the first supporting layer along the first direction is H1, satisfying 35 μm≤H1≤90 μm.

3. The display module according to claim 2, characterized in that: The bending area is located at one side of the support body along a second direction, the second direction is perpendicular to the first direction, and along the second direction, a distance d1 between an end of the first support layer close to the bending area and an end of the bending area close to the first non-bending area satisfies 50 μm≤d1≤100 μm; Preferably, the width of the first colloid along the second direction is d2, which satisfies -20 μm≤d1-d2≤20 μm.

4. The display module according to claim 2, characterized in that: The support body further includes a first buffer layer and a rigid layer, the two sides of the first buffer layer along the first direction are respectively adhered to the first support layer and the rigid layer, the auxiliary support member further includes a second colloid, a part of the side surface of the second colloid is adhered to the end of the first buffer layer close to the bending area and the end of the rigid layer close to the bending area, and another part of the side surface of the second colloid is adhered to one side of the first support layer close to the second non-bending area; Preferably, the material of the second colloid is photosensitive adhesive; Preferably, the material of the first buffer layer is pressure-sensitive adhesive; Preferably, the rigid layer is made of stainless steel; Preferably, the number of the second colloids is one, and the second colloids are continuously arranged along the axis direction of the bending zone; or, the number of the second colloids is more than two, and a plurality of the second colloids are spaced apart along the axis direction of the bending zone; Preferably, the end of the first buffer layer close to the bending zone is flush with the end of the rigid layer close to the bending zone; Preferably, the thickness of the first buffer layer along the first direction is H2, satisfying 10 μm≤H2≤30 μm; Preferably, the thickness of the rigid layer along the first direction is H3, satisfying 60 μm≤H3≤ 100μm.

5. The display module according to claim 4, characterized in that: The bending area is located at one side of the support body along a second direction, the second direction is perpendicular to the first direction, and along the second direction, a distance d3 between an end of the first buffer layer close to the bending area and an end of the first support layer close to the bending area satisfies 100 μm≤d3≤200 μm; Preferably, the width of the second colloid along the second direction is d4, satisfying -20 μm≤d3-d4≤20 μm.

6. The display module according to claim 4, characterized in that: The second colloid is bonded to the first colloid; Alternatively, the first colloid and the second colloid are integrally formed.

7. The display module according to claim 4, characterized in that: The support body further includes a second buffer layer and a second support layer attached to the second non-bending area, and the second buffer layer is attached to the rigid layer and the second support layer on both sides along the first direction respectively; Preferably, the material of the second buffer layer is pressure-sensitive adhesive; Preferably, the end of the second buffer layer close to the bending zone is flush with the end of the rigid layer close to the bending zone; Preferably, the thickness of the second buffer layer along the first direction is H4, 10 μm≤H4≤ 30μm; Preferably, the thickness of the second supporting layer along the first direction is H5, 35 μm≤H5≤ 90μm.

8. The display module according to claim 7, characterized in that: The bending radius of the bending zone is R1, satisfying R1≤100 μm; And / or, the first supporting layer and the second supporting layer have the same thickness along the first direction; And / or, the first buffer layer and the second buffer layer have the same thickness along the first direction.

9. The display module according to claim 3, characterized in that: A curved support layer is attached to the side of the bending area facing away from the support body; Preferably, a polarizing layer is attached to a side of the first non-bending region facing away from the support body; Preferably, a cover plate is attached to a side of the polarizing layer facing away from the first non-bending area.

10. A display device, characterized in that: A display module comprising any one of claims 1 to 9.

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