Display module and display device

Abstract

The application discloses a display module and a display device. The display module comprises a display panel, a cushion block, a flexible circuit board and a first protection part. The display panel comprises a first screen body, a bending part and a second screen body. The bending part connects the first screen body and the second screen body, so that the display panel can be bent at the bending part, the first screen body and the second screen body are close to each other, thereby reducing the frame of the display panel and realizing a narrow frame design. The first protection part is arranged between the flexible circuit board and the second screen body. The first protection part can support the flexible circuit board, improve the structural stability of the flexible circuit board and solve the problem that the flexible circuit board and the first screen body are easily separated. The first protection part can isolate water vapor, grease and acid-base sweat, and can isolate acid-base sweat in an acid-base sweat test, so as to avoid the invasion of water vapor, grease and acid-base sweat through the gap between the flexible circuit board and the second screen body, and to avoid the corrosion of the flexible circuit board.

Description

TECHNICAL FIELD

[0001] The present application relates to the display field, and in particular to a display module and a display device. BACKGROUND

[0002] The market share of the organic light emitting diode (OLED) display panel is increasing year by year due to its advantages such as high color gamut, flexibility, fast response speed, etc. The display panel is the mainstream trend of the current display industry. The development of the curved bonding technology further reduces the frame of the display of mobile terminal devices such as mobile phones and smart watches, greatly improves the screen ratio, and further improves the visual experience.

[0003] At present, it is difficult to bend the control circuit to the back of the display panel by using the curved bending technology. The display module after bending is prone to corrosion in the prior art. SUMMARY

[0004] Embodiments of the present application provide a display module and a display device, aiming to solve the problem that the display module after bending is prone to corrosion.

[0005] The first aspect of the present application provides a display module, comprising: a display panel, comprising a first screen body, a bending part and a second screen body, the first screen body and the second screen body are arranged opposite along a first direction, the bending part is curved and connected between the first screen body and the second screen body; a pad block is arranged between the second screen body and the first screen body; a flexible circuit board is connected to one end of the first screen body away from the bending part, the flexible circuit board and the second screen body are arranged opposite in the first direction; a first protection part, at least part of the first protection part is arranged between the flexible circuit board and the second screen body.

[0006] According to any one of the preceding embodiments of the first aspect of the present application, one side of the first protection part in a second direction towards the pad block is in contact with the pad block, and the first direction and the second direction intersect.

[0007] According to any one of the preceding embodiments of the first aspect of the present application, the first protection part covers the surface of the flexible circuit board towards the second screen body.

[0008] According to any one of the preceding embodiments of the first aspect of the present application, further comprising: a second protection part located on one side of the flexible circuit board in the first direction away from the second screen body, the second protection part covers at least part of the surface of the flexible circuit board away from the second screen body.

[0009] According to any one of the preceding embodiments of the first aspect of the present application, the second protection part and the first protection part are made of the same material.

[0010] According to any of the foregoing embodiments of the first aspect of this application, the dimension of the second protective part in the first direction is larger than the dimension of the first protective part in the first direction.

[0011] According to any of the foregoing embodiments of the first aspect of this application, the size of the second protective part in the first direction is 0.5mm to 1mm.

[0012] According to any of the foregoing embodiments of the first aspect of this application, the flexible circuit board has a main body and an extension extending from the main body in a second direction, and a second protective portion is disposed covering the main body.

[0013] According to any of the foregoing embodiments of the first aspect of this application, it further includes: a protective layer disposed on the surface of the bent portion away from the padding block, and a second protective portion extending to the side of the protective layer away from the first screen body.

[0014] According to any of the foregoing embodiments of the first aspect of this application, the second protective portion extends to the side of the bent portion away from the raised block.

[0015] According to any of the foregoing embodiments of the first aspect of this application, the second protective part has a first bottom surface and a second bottom surface disposed opposite to each other in a first direction, and a first side surface and a second side surface connected between the first bottom surface and the second bottom surface. The first side surface and the second side surface are disposed opposite to each other in a second direction. The first side surface is located on the side of the second side surface near the bending portion. The included angle between at least one of the first side surface and the second side surface and the first screen body is less than 90°.

[0016] According to any of the foregoing embodiments of the first aspect of this application, the included angle between the first side and the first screen body is less than 90°, and the included angle between the second side and the first screen body is less than 90°.

[0017] According to any of the foregoing embodiments of the first aspect of this application, the included angle between the first side and the first screen body is 30°~60°.

[0018] According to any of the foregoing embodiments of the first aspect of this application, the included angle between the second side and the first screen body is 30°~60°.

[0019] According to any of the foregoing embodiments of the first aspect of this application, the first protective part and the second protective part are disposed in contact.

[0020] According to any of the foregoing embodiments of the first aspect of this application, the first protective part and the second protective part are connected on the side of the main body away from the bend in the second direction.

[0021] According to any of the foregoing embodiments of the first aspect of this application, the size of the first protective part in the first direction is 0.3mm to 0.5mm.

[0022] According to any of the foregoing embodiments of the first aspect of this application, the material of the first protective part includes an organic insulating material.

[0023] According to any of the foregoing embodiments of the first aspect of this application, the organic insulating material includes at least one of epoxy resin or polyurethane.

[0024] According to any of the foregoing embodiments of the first aspect of this application, the display module further includes: a composite film layer located on the side of the second screen body facing the first screen body, and a shim block located between the composite film layer and the first screen body.

[0025] According to any of the foregoing embodiments of the first aspect of this application, the first protective part is located between the composite film layer and the first screen.

[0026] According to any of the foregoing embodiments of the first aspect of this application, the composite film layer includes composite foam, and the composite foam includes an adhesive layer, a buffer layer and a metal layer stacked sequentially along a first direction.

[0027] An embodiment of the second aspect of this application provides a display device that includes a display module of any of the above embodiments.

[0028] According to an embodiment of this application, the display module includes a display panel, a raised block, a flexible circuit board, and a first protective part. The display panel includes a first screen body, a bending portion, and a second screen body. The bending portion connects the first and second screen bodies, allowing the display panel to be bent at the bending portion, bringing the first and second screen bodies closer together, thereby reducing the bezel of the display panel and achieving a narrow bezel design. A first protective part is provided between the flexible circuit board and the second screen body. The first protective part supports the flexible circuit board, improving its structural stability and mitigating the problem of easy separation between the flexible circuit board and the first screen body. Furthermore, the first protective part isolates moisture, grease, and acid / alkaline sweat during acid / alkaline sweat testing, preventing moisture, grease, and acid / alkaline sweat from intruding through the gap between the flexible circuit board and the second screen body, thus preventing corrosion of the flexible circuit board and improving the lifespan of the flexible display panel. Attached Figure Description

[0029] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals denote the same or similar features, and the drawings are not drawn to scale.

[0030] Figure 1 This is a partial cross-sectional view of a display module provided in the first aspect embodiment of this application;

[0031] Figure 2 This is a partial cross-sectional view of a display module provided in another embodiment;

[0032] Figure 3 This is a partial cross-sectional view of a display module provided in yet another embodiment;

[0033] Figure 4 This is a top view schematic diagram of the flexible circuit board provided in the first aspect embodiment of this application;

[0034] Figure 5 This is a partial cross-sectional view of a display module provided in another embodiment;

[0035] Figure 6 This is a partial cross-sectional view of a display module provided in another embodiment;

[0036] Figure 7 This is a partial cross-sectional view of a display module provided in another embodiment;

[0037] Figure 8 This is a partial cross-sectional view of a display module provided in another embodiment;

[0038] Figure 9 This is a partial cross-sectional view of a display module provided in another embodiment;

[0039] Figure 10 This is a cross-sectional schematic diagram of a glue injection fixture provided in the first aspect embodiment of this application;

[0040] Figure 11 This is a top view schematic diagram of a glue injection fixture provided in the first aspect embodiment of this application;

[0041] Explanation of reference numerals in the attached figures:

[0042] 10. Display module; 20. Injection fixture; 21. Housing; 22. Injection port; 23. Outlet port;

[0043] 100. Display panel; 110. First screen; 120. Second screen; 130. Bending section;

[0044] 200. Raising blocks;

[0045] 300. First Protection Department;

[0046] 400. Flexible circuit board; 410. Main body; 420. Extension;

[0047] 500. Second protective part; 510. First bottom surface; 520. Second bottom surface; 530. First side surface; 540. Second side surface;

[0048] 600. Protective layer;

[0049] 700. Composite film layer; 710. First protective film; 720. Second protective film;

[0050] 800, Polarizing film; 810, Adhesive layer; 820, Cover plate;

[0051] X, the first direction; Y, the second direction. Detailed Implementation

[0052] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0054] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0055] This application provides a display module and a display device. The various embodiments of the display module and display device will be described below with reference to the accompanying drawings. The display module may be an organic light-emitting diode (OLED) display module.

[0056] Please see Figure 1 and Figure 2 , Figure 1 This is a partial cross-sectional view of a display module provided in the first aspect embodiment of this application; Figure 2This is a partial cross-sectional view of a display module provided in another embodiment.

[0057] like Figure 1 and Figure 2 As shown, a first aspect embodiment of this application provides a display module 10, including a display panel 100, a shim block 200, a flexible circuit board 400, and a first protective part 300. The display panel 100 includes a first screen body 110, a bending part 130, and a second screen body 120. The first screen body 110 and the second screen body 120 are disposed opposite each other along a first direction X. The bending part 130 is bent and connected between the first screen body 110 and the second screen body 120. The shim block 200 is disposed between the second screen body 120 and the first screen body 110. The flexible circuit board 400 is connected to the end of the first screen body 110 away from the bending part 130. The flexible circuit board 400 and the second screen body 120 are disposed opposite each other in the first direction X. At least a portion of the first protective part 300 is disposed between the flexible circuit board 400 and the second screen body 120.

[0058] According to an embodiment of this application, the display module 10 includes a display panel 100, a raised block 200, a flexible circuit board 400, and a first protective part 300. The display panel 100 includes a first screen body 110, a bending portion 130, and a second screen body 120. The bending portion 130 connects the first screen body 110 and the second screen body 120, allowing the display panel 100 to be bent at the bending portion 130, bringing the first screen body 110 and the second screen body 120 closer together, thereby reducing the bezel of the display panel 100 and achieving a narrow bezel design. The first protective part 300 is provided between the flexible circuit board 400 and the second screen body 120. The first protective part 300 supports the flexible circuit board 400, improving its structural stability and mitigating the problem of easy separation between the flexible circuit board 400 and the first screen body 110. Furthermore, the first protective part 300 can isolate moisture, grease, etc., and isolate acid and alkaline sweat in acid and alkaline sweat tests, preventing moisture, grease, acid and alkaline sweat from invading through the gap between the flexible circuit board 400 and the second screen body 120, which would cause corrosion of the flexible circuit board 400 and improve the service life of the flexible display panel 100.

[0059] There are several ways to install the shim block 200. For example, the material of the shim block 200 may include a wave-absorbing material, enabling it to serve as an electromagnetic shield. Alternatively, the material of the shim block 200 may also include polyester resin (Polyethylene terephthalate; PET), polyimide (Polyimide; PI), etc.

[0060] In some alternative embodiments, the first protective part 300 contacts the shim block 200 on the side facing the shim block 200 in the second direction Y, where the first direction X and the second direction Y intersect.

[0061] In these alternative embodiments, the first protective part 300 contacts the shim block 200 on one side in the second direction Y to fully fill the space between the flexible circuit board 400 and the second screen 120, thereby improving the barrier effect of the second protective part 500 against moisture, grease and sweat, and reducing the corrosion of the flexible circuit board 400 and the display panel 100 by moisture, grease and sweat intrusion.

[0062] In some alternative embodiments, the first protective portion 300 covers the surface of the flexible circuit board 400 facing the second screen 120.

[0063] In these optional embodiments, a portion of the surface of the flexible circuit board 400 facing the second screen 120 is in contact with and covered by the first screen 110, while the other portion is covered by the first protective part 300. This achieves encapsulation protection of the flexible circuit board 400 facing the second screen 120 by the first protective part 300, preventing corrosion of the flexible circuit board 400 by moisture, grease, sweat, etc.

[0064] Optionally, the portion of the first screen 110 extending from the shim block 200 toward the side away from the bend 130 is covered by the first protective part 300. The first protective part 300 covers both the flexible circuit board 400 and the first screen 110, thereby achieving encapsulation protection for the flexible circuit board 400 and the first screen 110, preventing corrosion of the flexible circuit board 400 and the first screen 110 by moisture, grease, and sweat, and improving the service life of the flexible display panel 100 and the display panel 100.

[0065] Please see Figure 3 , Figure 3 This is a partial cross-sectional view of a display module provided in another embodiment.

[0066] like Figure 3 As shown, in some optional embodiments, it further includes: a second protective portion 500 located on the side of the flexible circuit board 400 facing away from the second screen body 120 in the first direction X, the second protective portion 500 covering at least a portion of the surface of the flexible circuit board 400 facing away from the second screen body 120.

[0067] In these optional embodiments, the second protection covers the surface of the flexible circuit board 400 facing away from the second screen 120, thereby achieving encapsulation protection of the flexible circuit board 400 facing away from the second screen 120 by the second protection part 500, preventing moisture, grease and sweat from corroding the flexible circuit board 400 facing away from the second screen 120, and the second protection part 500 can protect the structure of the flexible circuit board 400, such as buffering external impacts, and improving the service life of the flexible display panel 100.

[0068] Optionally, the second protective part 500 and the first protective part 300 are made of the same material, and the same material is used for injection molding, which simplifies the preparation process of the first protective part 300 and the second protective part 500.

[0069] In some optional embodiments, the dimension D2 of the second protective portion 500 in the first direction X is greater than the dimension D1 of the first protective portion 300 in the first direction X. The dimension of the first protective portion 300 in the first direction X is the maximum thickness of the first protective portion 300, and the dimension of the second protective portion 500 in the first direction X is the maximum thickness of the second protective portion 500.

[0070] In these alternative embodiments, the thickness of the second protective portion 500 is greater than the thickness of the first protective portion 300. The greater thickness of the second protective portion 500 provides better protection for the side of the flexible circuit board 400 facing away from the second screen 120, further improving the barrier effect of the second protective portion 500 against moisture, grease, and acid / alkaline sweat. The shim block 200 has a smaller thickness to reduce the gap between the first screen 110 and the second screen 120, thereby reducing the overall film thickness of the display module 10. Therefore, the thickness of the first protective portion 300 is set smaller to control the overall film thickness of the display module 10.

[0071] In some optional embodiments, the dimension D2 of the second protective portion 500 in the first direction X is 0.5mm to 1mm. For example, the dimension of the second protective portion 500 in the first direction X is 0.5mm, 0.6mm, 0.7mm, or 1mm.

[0072] In these optional embodiments, the second protective portion 500 has a dimension greater than or equal to 0.5 mm in the first direction X. This addresses the problem that an excessively small dimension in the first direction X, i.e., an excessively small thickness, leads to poor barrier properties against moisture, grease, and acidic / alkaline sweat, and reduced protection for the flexible circuit board 400. Alternatively, the second protective portion 500 has a dimension less than or equal to 1 mm in the first direction X. This addresses the problem that an excessively large dimension in the first direction X, i.e., an excessively large thickness, leads to increased material costs for the second protective portion 500 and increased thickness for the display module 10.

[0073] Please see Figure 3 and Figure 4 , Figure 4 This is a top view schematic diagram of the flexible circuit board provided in the first aspect embodiment of this application.

[0074] like Figure 3 and Figure 4As shown, in some optional embodiments, the flexible circuit board 400 has a main body 410 and an extension 420 extending from the main body 410 along a second direction Y, and a second protective portion 500 is provided covering the main body 410.

[0075] In these alternative embodiments, the second protective portion 500 is provided to cover the main body portion 410 to reduce the corrosion of the main body portion 410 by moisture, grease and acid / alkali sweat, and to form structural protection for the main body portion 410, thereby improving the service life of the main body portion 410.

[0076] Optionally, the extension 420 is formed by extending along the second direction Y.

[0077] Optionally, the main body 410 has a device area on the side opposite to the second screen 120 for setting electronic components such as Touch Panel Integrated Controller (TPIC) and other components.

[0078] Optionally, the device area is covered by a second protective section 500 to reduce corrosion of the device area by moisture, grease, and acid / alkali sweat.

[0079] Optionally, the edge of the device area on the side opposite to the bend 130 is covered by the second protection portion 500.

[0080] Optionally, the second protective portion 500 extends to the side of the extension portion 420 in the first direction X, so that the second protective portion 500 can completely cover the main body portion 410, thereby improving the encapsulation and protection effect of the second protective portion 500.

[0081] Please see Figure 5 and Figure 6 , Figure 5 This is a partial cross-sectional view of a display module provided in another embodiment; Figure 6 This is a partial cross-sectional view of a display module provided in another embodiment.

[0082] like Figure 5 and Figure 6 As shown, in some optional embodiments, the display module 10 further includes a protective layer 600 disposed on the surface of the bend 130 away from the shim block 200.

[0083] Optionally, the second protective part 500 extends to the side of the protective layer 600 opposite to the first screen body 110.

[0084] In these optional embodiments, a protective layer 600 is provided on one side of the bent portion 130 to provide structural protection for the bent portion 130 and improve its structural strength and stability. The second protective portion 500 extends to the side of the protective layer 600 opposite to the first screen 110, increasing the coverage area of ​​the second protective portion 500. This allows the second protective portion 500 to encapsulate and protect the flexible circuit board 400, the first screen 110, and the protective layer 600, reducing corrosion from moisture, grease, and acid / alkali sweat. Furthermore, the extension of the second protective portion 500 to one side of the protective layer 600 allows it to work together with the protective layer 600 to provide structural protection and strength compensation for the display panel 100, thereby extending its service life.

[0085] In some alternative embodiments, the second protective portion 500 extends to the side of the bend 130 opposite to the pad block 200.

[0086] In these alternative embodiments, the second protective portion 500 extends and forms an encapsulated protection for the bent portion 130, reducing the erosion of the bent portion 130 by moisture, grease, and acid / alkaline sweat. The second protective portion 500 can further improve the structural strength and structural stability of the bent portion 130, and together with the protective layer 600, it forms strength compensation for the bent portion 130, improves stress concentration in the bent portion 130, and increases the service life of the bent portion 130.

[0087] Please see Figure 7 , Figure 7 This is a partial cross-sectional view of a display module provided in another embodiment.

[0088] like Figure 7 As shown, in some optional embodiments, the second protective part 500 has a first bottom surface 510 and a second bottom surface 520 disposed opposite each other in a first direction X, and a first side surface 530 and a second side surface 540 connected between the first bottom surface 510 and the second bottom surface 520. The first side surface 530 and the second side surface 540 are disposed opposite each other in a second direction Y. The first side surface 530 is located on the side of the second side surface 540 near the bending part 130. The included angle between at least one of the first side surface 530 and the second side surface 540 and the first screen body 110 is less than 90°.

[0089] The angle between the first side 530 or the second side 540 and the first screen body 110 refers to the angle between the extended surface of the first side 530 or the second side 540 and the extended surface of the surface of the first screen body 110 facing away from the second screen body 120.

[0090] In these optional embodiments, the angle between the first side 530 or the second side 540 and the first screen 110 is less than 90°, and the first side 530 or the second side 540 is inclined relative to the first screen 110. The inclined first side 530 and the second side 540 can release the stress of the flexible circuit board 400 or the display panel 100, thereby improving the stress distribution of the flexible circuit board 400 or the display panel 100 and reducing the problem of stress concentration. For example, the first side 530 is located on the side of the bent portion 130 away from the shim block 200 to release the stress of the bent portion 130, improve the stress distribution of the bent portion 130, and improve the problem of stress concentration in the bent portion 130 near the first screen 110. The second side 540 is located on the side of the flexible circuit board 400 away from the second screen 120 to release the stress of the flexible circuit board 400 and improve the stress distribution of the flexible circuit board 400.

[0091] In some alternative embodiments, the angle between the first side 530 and the first screen 110 is less than 90°, and the angle between the second side 540 and the first screen 110 is less than 90°.

[0092] In these optional embodiments, the angle between the first side 530 and the second side 540 and the first screen 110 is less than 90°. The first side 530 and the second side 540 are inclined relative to the first screen 110. The inclined first side 530 and the second side 540 can release the stress of the flexible circuit board 400 and the display panel 100, so as to improve the stress distribution of the flexible circuit board 400 and the display panel 100 and reduce the problem of stress concentration.

[0093] In some optional embodiments, the included angle between the first side 530 and the first screen 110 is 30° to 60°. For example, the included angle between the first side 530 and the first screen 110 is 30°, 40°, 50°, or 60°.

[0094] In these optional embodiments, the included angle between the first side 530 and the first screen 110 is greater than or equal to 30°, which can improve the problem that if the included angle between the first side 530 and the first screen 110 is too small, the encapsulation and protection capability of the second protective part 500 at the first side 530 position will be weak, and the manufacturing process will be difficult. If the included angle between the first side 530 and the first screen 110 is less than or equal to 60°, it can improve the problem that if the included angle between the first side 530 and the first screen 110 is too large, the stress release capability of the second protective part 500 at the first side 530 position will be weak, and stress concentration will be difficult to alleviate.

[0095] In some optional embodiments, the included angle between the second side 540 and the first screen 110 is 30° to 60°. For example, the included angle between the second side 540 and the first screen 110 is 30°, 40°, 50°, or 60°.

[0096] In these optional embodiments, the angle between the second side 540 and the first screen 110 is greater than or equal to 30°, which can improve the problem that if the angle between the second side 540 and the first screen 110 is too small, the encapsulation and protection capability of the second protective part 500 at the second side 540 position will be weak, and the manufacturing process will be difficult. If the angle between the second side 540 and the first screen 110 is less than or equal to 60°, it can improve the problem that if the angle between the second side 540 and the first screen 110 is too large, the stress release capability of the second protective part 500 at the second side 540 position will be weak, and stress concentration will be difficult to alleviate.

[0097] Please see Figure 8 , Figure 8 This is a partial cross-sectional view of a display module provided in another embodiment.

[0098] like Figure 8 As shown, in some optional embodiments, the first protective part 300 and the second protective part 500 are arranged in contact.

[0099] In these alternative embodiments, the first protective part 300 and the second protective part 500 are in contact, so that the first protective part 300 and the second protective part 500 are structurally connected, resulting in better encapsulation and protection.

[0100] Optionally, the first protective part 300 and the second protective part 500 are connected on the side of the main body 410 away from the bending part 130 in the second direction Y. The first protective part 300 and the second protective part 500 are connected on the side of the flexible circuit board 400 in the second direction Y. The first protective part 300 and the second protective part 500 form a surround of the flexible circuit board 400, thereby improving the encapsulation and protection effect of the flexible circuit board 400.

[0101] like Figure 3 As shown, in some optional embodiments, the dimension D1 of the first protective part 300 in the first direction X is 0.3mm to 0.5mm. For example, the dimension of the first protective part 300 in the first direction X is 0.3mm, 0.4mm, 0.45mm, or 0.5mm.

[0102] In these optional embodiments, the dimension of the first protective part 300 in the first direction X is greater than or equal to 0.3 mm. This can improve the problem of the first protective part 300 being too small in the first direction X, i.e., the thickness of the first protective part 300 being too small, the distance between the second screen 120 and the flexible circuit board 400 being too small, resulting in excessive manufacturing difficulty and excessive stress on the bending part 130. The dimension of the first protective part 300 in the first direction X is less than or equal to 0.5 mm. This can improve the problem of the first protective part 300 being too large in the first direction X, i.e., the thickness of the first protective part 300 being too large, the distance between the second screen 120 and the flexible circuit board 400 being too large, resulting in excessive thickness of the display module 10.

[0103] Optionally, the material of the first protective part 300 includes organic insulating material. The organic material of the first protective part 300 has better fluidity, can better fill the gap between the second screen 120 and the flexible circuit board 400, and can better isolate moisture, grease, acid, alkali and sweat.

[0104] Optionally, the material of the second protective part 500 includes organic insulating material. The first protective part 300 of organic material has better fluidity, can better fill the gap between the second screen 120 and the flexible circuit board 400, and can better isolate moisture, grease, acid, alkali and sweat.

[0105] Optionally, the organic insulating material includes at least one of epoxy resin or polyurethane. Epoxy resin has advantages such as low shrinkage, no reaction byproducts, and excellent electrical insulation properties. Polyurethane has a soft-hard transition layer between its substrates, which not only provides strong adhesion but also excellent cushioning and shock absorption functions.

[0106] Optionally, the first protective part 300 is made of black material, which can absorb stray light and prevent stray light from affecting the light emission of the display module 10.

[0107] Optionally, the second protective part 500 is made of black material, which can absorb stray light and prevent stray light from affecting the light emission of the display module 10.

[0108] Please see Figure 9 , Figure 9 This is a partial cross-sectional view of a display module provided in another embodiment.

[0109] like Figure 9 As shown, in some optional embodiments, the display module 10 further includes: a composite film layer 700 located on the side of the second screen 120 facing the first screen 110, and a shim block 200 located between the composite film layer 700 and the first screen 110.

[0110] In these alternative embodiments, the composite film layer 700 is located between the first screen body 110 and the second screen body 120, providing protection for the display panel 100. A shim 200 is disposed between the composite film layer 700 and the first screen body 110 to support and separate the composite film layer 700 from the first screen body 110, preventing excessive bending of the bent portion 130 and excessive stress.

[0111] Optionally, the projection of the shim 200 onto the second screen 120 is located within the projection of the composite film layer 700 onto the second screen 120. That is, the end of the shim 200 near the composite film layer 700 only supports the composite film layer 700. The shim 200 and the composite film layer 700 are set together to better protect the display panel 100.

[0112] Optionally, the first protective part 300 is located between the composite film layer 700 and the first screen 110.

[0113] Optionally, the composite film layer 700 includes a composite foam, such as an SCF (Super Clean Foam) assembly. The SCF assembly includes an adhesive layer, a buffer layer, and a metal layer sequentially stacked along a first direction X. The adhesive layer is used to bond the buffer layer and the display panel 100. The buffer layer enhances the impact resistance of the display module 10. The metal layer further increases the strength and toughness of the display module 10, thereby increasing the drop resistance of the display module 10 and further enhancing the protective effect of the composite film layer 700 on the display panel 100.

[0114] The buffer layer is made of materials that are elastic, lightweight, flexible, and ultra-thin, such as foam. The metal layer is made of a highly ductile metal, such as copper foil.

[0115] Optionally, the composite film layer 700 includes a stainless steel layer (SUS) to improve the mechanical strength and durability of the display module 10.

[0116] Optionally, the display module 10 also includes a first protective film 710 located between the composite film layer 700 and the second screen body 120, providing support and protection for the second screen body 120.

[0117] Optionally, the display module 10 also includes a second protective film 720 located between the shim block 200 and the first screen body 110, providing support and protection for the first screen body 110.

[0118] Optionally, the display module 10 also includes a polarizer 800, which is disposed on the side of the second screen 120 away from the raised block 200. The polarizer 800 can filter natural light and reduce the amount of reflected light, thereby improving the display effect of the display module 10.

[0119] Optionally, the display module 10 also includes a cover plate 820, which is bonded to the side of the polarizer 800 facing away from the display panel 100. The cover plate 820 can provide protection for components such as the polarizer 800 and the display panel 100, thereby improving the service life of the display module 10.

[0120] Optionally, an adhesive layer 810, such as OCA optical adhesive (OpticallyClear Adhesive), is provided between the polarizer 800 and the cover plate 820.

[0121] Optionally, the cover plate 820 is provided with ink on both sides in the second direction Y.

[0122] When the display module 10 of this application is used, an oil test is performed on the display module 10. The test environment is 60°C and 90% relative humidity. 0.04ml of oil is dripped onto the display module 10, and 0.04ml of oil is dripped once every 24 hours. After a total of 240 hours of testing, there are no abnormalities on the surface of the flexible circuit board 400 area of ​​the display module 10.

[0123] When the display module 10 of this application is used, a waterproof test is conducted on the display module 10. The test environment is 80°C and 85% relative humidity. The display module 10 is placed in water and left for 240 hours. There are no abnormalities on the surface of the flexible circuit board 400 area of ​​the display module 10.

[0124] The second aspect of this application also provides a display device, including the display module 10 of any of the first aspect embodiments described above. Since the display device provided by the second aspect of this invention includes the display module 10 of any of the first aspect embodiments described above, the display device provided by the second aspect of this invention has the beneficial effects of the display module 10 of any of the first aspect embodiments described above, which will not be elaborated further here.

[0125] The display devices in the embodiments of the present invention include, but are not limited to, mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, control consoles, and other devices with display functions.

[0126] Please see Figures 1 to 11 , Figure 10 This is a cross-sectional schematic diagram of a glue injection fixture provided in the first aspect embodiment of this application; Figure 11 This is a top view schematic diagram of a glue injection fixture provided in the first aspect embodiment of this application.

[0127] like Figures 1 to 11As shown, a third aspect embodiment of this application provides a glue injection fixture 20, which includes a semi-enclosed housing 21. The housing 21 encloses and forms an internal space for accommodating the flexible circuit board 400. The housing 21 simultaneously abuts against the surface of the first protective film 710 and the surface of the protective layer 600, thereby forming a sealed space between the glue injection fixture 20 and the display module 10. The housing 21 is provided with a glue injection port 22 and a glue outlet 23 at intervals. The glue outlet 23 is located on one side of the first screen body 110 or the bent portion 130 in the first direction X, and the glue injection port 22 is located on the side of the glue outlet 23 facing the flexible circuit board 400 in the second direction Y. The shape of the housing 21 of the glue injection fixture 20 is set according to the actual shape of the display module 10, so as to achieve abutment with the display module 10 and form a sealed space for glue injection.

[0128] The first protective part 300 and the second protective part 500 are prepared using the injection fixture 20 of this embodiment. The shape of the injection fixture 20 is at least partially the same as the outer contour shape of the first protective part 300 and the second protective part 500. For example, by injecting material into the injection port 22, the injection is stopped when material overflows from the outlet 23. After the material between the injection fixture 20 and the display module 10 is cured, the first protective part 300 and the second protective part 500 are formed.

[0129] Optionally, the main body 410 of the flexible circuit board 400 is located in the internal space, or the main body 410 and part of the extension 420 are located in the internal space.

[0130] Optionally, a vacuum setting is provided within the internal space to reduce air bubbles generated during the dispensing process and improve the encapsulation and protection effect of the first protective part 300 and the second protective part 500.

[0131] The embodiments described above are not exhaustive, nor do they limit the invention to the specific embodiments described. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to effectively utilize this application and its modifications. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A display module, characterized by The display module comprises: a display panel comprising a first screen body, a bending part and a second screen body, the first screen body and the second screen body being oppositely arranged along a first direction, the bending part being curved and connected between the first screen body and the second screen body; a cushioning block arranged between the second screen body and the first screen body; a flexible circuit board connected to an end of the first screen body away from the bending part, the flexible circuit board and the second screen body being oppositely arranged along the first direction; a first protection part, at least part of the first protection part being arranged between the flexible circuit board and the second screen body; a second protection part located on a side of the flexible circuit board away from the second screen body along the first direction, the second protection part covering at least part of a surface of the flexible circuit board away from the second screen body, the first protection part and the second protection part being in contact.

2. The display module of claim 1, wherein, A side of the first protection part towards the cushioning block along a second direction is in contact with the cushioning block, the first direction and the second direction intersecting.

3. The display module of claim 1, wherein, The first protection part covers a surface of the flexible circuit board towards the second screen body.

4. The display module of claim 1, wherein, The second protection part and the first protection part are made of the same material.

5. The display module of claim 1, wherein, A dimension of the second protection part along the first direction is greater than a dimension of the first protection part along the first direction.

6. The display module of claim 1, wherein, The dimension of the second protection part along the first direction is 0.5mm-1mm.

7. The display module of claim 1, wherein, The flexible circuit board has a main part and an extension part extending from the main part along the second direction, the second protection part covering the main part.

8. The display module of claim 1, wherein, Further comprising: a protection layer arranged on a surface of the bending part away from the cushioning block, the second protection part extending to a side of the protection layer away from the first screen body.

9. The display module of claim 1, wherein, The second protection part extends to a side of the bending part away from the cushioning block.

10. The display module of claim 1, wherein, The second protection part has a first bottom surface and a second bottom surface oppositely arranged along the first direction, and a first side surface and a second side surface connected between the first bottom surface and the second bottom surface, the first side surface and the second side surface being oppositely arranged along a second direction, the first side surface being located on a side of the second side surface close to the bending part, and an included angle between at least one of the first side surface and the second side surface and the first screen body being less than 90°.

11. The display module of claim 10, wherein, An included angle between the first side surface and the first screen body is less than 90°, and an included angle between the second side surface and the first screen body is less than 90°.

12. The display module of claim 11, wherein, The included angle between the first side surface and the first screen body is 30°-60°.

13. The display module of claim 11, wherein, The included angle between the second side surface and the first screen body is 30°-60°.

14. The display module of claim 7, wherein, The first protection part and the second protection part are in communication on a side of the main part away from the bending part along the second direction.

15. The display module of claim 1, wherein, A dimension of the first protection part along the first direction is 0.3mm-0.5mm.

16. The display module of claim 1, wherein, The material of the first protection part comprises an organic insulating material.

17. The display module of claim 16, wherein, The organic insulating material comprises at least one of epoxy resin or polyurethane.

18. The display module of claim 1, wherein, The display module further comprises: a composite film layer located on a side of the second screen body towards the first screen body, the cushioning block being located between the composite film layer and the first screen body.

19. The display module of claim 18, wherein, The first protection part is located between the composite film layer and the first screen body.

20. The display module of claim 18, wherein, The composite film layer comprises composite foam, and the composite foam comprises, in sequence along the first direction, an adhesive layer, a buffer layer, and a metal layer.

21. A display device comprising: The display module comprises the display module according to any one of claims 1-20.

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