Flexible display module and display device

Abstract

The application discloses a flexible display module and a display device. The flexible display module comprises a flexible display panel, a flexible circuit board and a sealing structure. The flexible display panel comprises a display part, a binding part and a bending part. The binding part is bent to the non-display side of the display part through the bending part, so that the narrow frame design of the flexible display panel is realized. The connecting section guarantees the signal transmission between the flexible circuit board and the flexible display panel. The display part and the binding part are further provided with a raised layer. The raised layer is used for adjusting the bending radius of the bending part and preventing the metal wire located in the bending area from being broken due to the large bending stress. The sealing structure is arranged on one side of the flexible circuit board in the first direction and connected with the opening, so as to completely cover the opening, prevent the sweat from invading through the hollow space to cause the wire corrosion of the flexible display module, and improve the display abnormal problems such as screen black screen and flash screen.

Description

Technical Field

[0001] This application relates to the field of displays, specifically to a flexible display module and a display device. Background Technology

[0002] With the development of flexible display technology, flexible displays have become the future trend of display terminals. Users' demands for higher screen-to-body ratios are increasing, making full-screen displays on electronic devices a focus of growing attention in the industry.

[0003] To achieve a full-screen display effect, flexible display panels are typically achieved by bending the non-display area. This involves bending the non-display area of ​​the flexible display panel to the back of the panel, thereby reducing the width of the screen bezel and increasing the screen-to-body ratio.

[0004] When a flexible display panel is bent in the bending area, a hollow space will appear at the step. Sweat will accumulate here and penetrate into the screen, causing corrosion of the metal traces, which will lead to display abnormalities such as black screen and screen flickering. Summary of the Invention

[0005] This application provides a flexible display module and display device, aiming to solve display abnormalities such as black screen and screen flickering.

[0006] The first aspect of this application provides a flexible display module, including:

[0007] A flexible display panel includes a display section, a bonding section, and a bending section connecting the display section and the bonding section. The display section includes a display side and a non-display side disposed opposite to each other. The bonding section is bent to the non-display side of the display section via the bending section.

[0008] The padding layer is located between the display section and the mounting section;

[0009] The flexible circuit board includes a connecting segment and an inclined segment located on the non-display side of the display section and connected sequentially in a direction away from the bending section. The connecting segment is connected to the bonding section. The inclined segment, the display section, and the padding layer enclose a hollow space extending in a first direction. The hollow space has openings at both ends in the first direction.

[0010] A sealing structure is disposed on at least one side of a flexible circuit board in a first direction and seals an opening connected to at least one hollow space. The sealing structure includes a sealing portion that completely covers the opening.

[0011] Optionally, one of the sealing part and the flexible circuit board is provided with a protrusion, and the other is provided with a groove, and the protrusion and the groove are snap-fit ​​connected; and / or, one of the sealing part and the pad layer is provided with a protrusion, and the other is provided with a groove, and the protrusion and the groove are snap-fit ​​connected.

[0012] Optionally, the protrusion is provided on the sealing part, the groove is located on the pad layer, and / or the groove is located on the flexible circuit board, and / or the cutout space is reused as the groove, and the protrusion is snapped to the cutout space;

[0013] Optionally, the area of ​​the cross-section of the sealing part perpendicular to the first direction is greater than the area of ​​the cross-section of the opening perpendicular to the first direction.

[0014] Optionally, along the thickness direction of the display section, the height of the sealing section is greater than the height of the hollow space; along the direction from the bend to the pad layer, the length of the sealing section is greater than the length of the hollow space.

[0015] Optionally, the sealing structure also includes a cover portion, which is located at least on the side of the inclined section opposite to the hollow space, and the cover portion is connected to the sealing portion.

[0016] Optionally, the sealing part includes a first side, a second side, and a third side connecting the first side and the second side, wherein the first side is perpendicular to the second side and is attached to the flexible circuit board, and the second side faces the display part;

[0017] Optionally, one end of the third side is connected to the end of the first side that is away from the flexible display panel, and the other end of the third side is connected to the end of the second side that is away from the flexible circuit board, and the third side is a sloped surface or a curved surface.

[0018] Optionally, the first side is perpendicular to the display unit, and the angle between the third side and the display unit is an acute angle.

[0019] Optionally, the flexible display module also includes an integrated circuit, which is located on the side of the bonding portion away from the display portion, between the flexible circuit board and the bending portion, and spaced apart from the flexible circuit board;

[0020] And / or, the flexible display module also includes conductive adhesive, which is located between the connecting section and the bonding section.

[0021] Optionally, the flexible circuit board and sealing structure are molded as a single unit.

[0022] Optionally, the flexible display module includes a support layer located on the side of the display section near the bonding section, and the support layer includes:

[0023] The support film is located on the side of the display section near the bonding section;

[0024] The buffer layer is located on the side of the support film opposite to the display section.

[0025] Optionally, the support layer may also include a metal layer located on the side of the buffer layer away from the support film, and the flexible circuit board may also include an extension located on the side of the inclined section away from the connecting section, with the metal layer connected to the extension.

[0026] Optionally, the number of sealing structures is two, with the two sealing structures disposed on both sides of the flexible circuit board in the first direction and sealingly connected to the opening of the hollow space.

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

[0028] The flexible display module according to an embodiment of this application includes a flexible display panel, a flexible circuit board, and a sealing structure. The flexible display panel includes a display part, a bonding part, and a bending part. The bonding part is bent through the bending part to the non-display side of the display part, thereby achieving a narrow bezel design for the flexible display panel. A connecting section connects the flexible circuit board and the flexible display panel to ensure signal transmission between them. A padding layer is also provided between the display part and the bonding part. The padding layer is used to adjust the bending radius of the bending part and prevent the metal traces in the bending area from breaking due to high bending stress. The sealing structure is provided on one side of the flexible circuit board in a first direction and connected to an opening to close the hollow space formed by the inclined section of the flexible circuit board, the display part, and the padding layer. The sealing part completely covers the opening, and the water and oxygen path is increased, preventing sweat from entering through the hollow space and causing corrosion of the flexible display module traces, thus improving display abnormalities such as black screen and screen flickering. 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 top view schematic diagram of a flexible display module provided in the first aspect embodiment of this application;

[0031] Figure 2 This is a partial cross-sectional view of a flexible display module provided in the first aspect embodiment of this application;

[0032] Figure 3 This is a top view schematic diagram of a flexible display module provided in another embodiment;

[0033] Figure 4 This is a partial cross-sectional view of a flexible display module provided in another embodiment;

[0034] Figure 5 yes Figure 3 Sectional view at point AA;

[0035] Figure 6 yes Figure 3 Another sectional view at point AA;

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

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

[0038] Figure 9 This is a top view schematic diagram of a flexible display module provided in another embodiment;

[0039] Figure 10 yes Figure 9 Sectional view at point AA;

[0040] Explanation of reference numerals in the attached figures:

[0041] 10. Flexible display module;

[0042] 11. Cover plate; 12. Polarizing layer;

[0043] 100. Flexible display panel; 110. Display section; 120. Bonding section; 130. Bending section;

[0044] 200, Support layer; 210, Support membrane; 220, Buffer layer; 230, Metal layer;

[0045] 300. Add a higher floor level;

[0046] 400. Flexible circuit board; 401. First region; 402. Second region; 410. Inclined section; 420. Groove; 430. Connecting section; 440. Protective layer; 450. Extension section;

[0047] 500, Sealing structure; 510, Sealing part; 511, First side surface; 512, Second side surface; 513, Third side surface; 520, Protrusion; 530, Covering part;

[0048] 600. Hollowed-out space; 610. Opening;

[0049] 700. Integrated circuits;

[0050] 800, conductive adhesive;

[0051] X, first direction; Y, second direction; Z, thickness 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] A flexible display panel includes a display area and a non-display area extending from the display area. Specifically, the display area is the area for displaying images, and the non-display area is the area for not displaying images. Further, the display area contains components for displaying images, such as light-emitting elements and pixel arrays. The non-display area contains integrated circuits for functions such as signal transmission and driving the light-emitting elements to emit light. It should be noted that the non-display area can extend outward from one side of the display area, but is not limited to this; the non-display area can also extend outward from multiple sides of the display area.

[0056] Furthermore, the display area includes a display surface for displaying images and a back surface positioned opposite the display surface. To achieve a full-screen display on the flexible display panel, the non-display area, which does not display images, can be bent towards the back, thus hiding the non-display area and increasing the area ratio of the display area on the front of the flexible display panel, thereby increasing the screen-to-body ratio of the flexible display panel. To enable the bending of the non-display area, the non-display area has a bendable bending zone, and the area outside the bending zone on the non-display area is the non-bending area.

[0057] When a flexible display panel is bent in the bending area, a hollow space will appear on the step away from the bending area on the side of the raised platform. Sweat will accumulate here and penetrate into the screen, causing corrosion of the metal traces, which will lead to display abnormalities such as black screen and screen flickering.

[0058] To address the aforementioned issues, this application provides a flexible display module and a display device. The following description, in conjunction with the accompanying drawings, will illustrate various embodiments of the flexible display module and the display device.

[0059] Please refer to the following: Figures 1 to 2 , Figure 1 This is a top view schematic diagram of a flexible display module provided in the first aspect embodiment of this application; Figure 2 This is a partial cross-sectional view of a flexible display module provided in the first aspect of this application.

[0060] like Figure 1 and Figure 2As shown, a first aspect of this application provides a flexible display module 10. The flexible display module 10 includes a flexible display panel 100, a padding layer 300, a flexible circuit board 400, and a sealing structure 500. The flexible display panel 100 includes a display portion 110, a bonding portion 120, and a bending portion 130. The display portion 110 includes a display side and a non-display side disposed opposite to each other. The bonding portion 120 is bent to the non-display side of the display portion 110 via the bending portion 130. The bending portion 130 is used to connect the display portion 110 and the bonding portion 120. The bonding portion 120 is located on one side of the display portion 110 in the thickness direction Z. The padding layer 300 is located between the display portion 110 and the bonding portion 120. The flexible circuit board 400 is connected to the bonding portion 120 and extends to the display portion 110 near the bonding portion 120. On the surface, the flexible circuit board 400 includes a connecting segment 430 and an inclined segment 410 located on the non-display side of the display portion 110 and connected sequentially in a direction away from the bending portion 130 (parallel to the direction Y). The connecting segment 430 is connected to the binding portion 120. The inclined segment 410, the display portion 110 and the padding layer 300 enclose a hollow space 600 extending in the first direction X. The hollow space 600 has openings 610 at both ends in the first direction X. A sealing structure 500 is disposed on at least one side of the flexible circuit board 400 in the first direction X and is sealed to at least one opening 610 of the hollow space 600. The sealing structure 500 includes a sealing portion 510, which is used to completely cover the opening 610 and extends in the second direction Y, which intersects with the first direction X.

[0061] According to an embodiment of this application, the flexible display module 10 includes a flexible display panel 100, a flexible circuit board 400, and a sealing structure 500. The flexible display panel 100 includes a display portion 110, a bonding portion 120, and a bending portion 130. The bonding portion 120 is bent through the bending portion 130 to the non-display side of the display portion 110, thereby achieving a narrow bezel design for the flexible display panel 100. A connecting segment 430 connects the flexible circuit board 400 and the flexible display panel 100, ensuring signal transmission between the flexible circuit board 400 and the flexible display panel 100. A padding layer 300 is also provided between the display portion 110 and the bonding portion 120. The padding layer 300 is used to adjust the bending radius of the bending portion 130 to prevent the metal traces located in the bending area 11 from breaking due to large bending stress. A sealing structure 500 is disposed on one side of the flexible circuit board 400 in the first direction X and connected to the opening 610 to close the hollow space 600 formed by the inclined section 410 of the flexible circuit board 400, the display part 110, and the padding layer 300. The sealing part 510 extends along the second direction Y to increase the coverage area, thereby completely covering the opening 610 and increasing the water and oxygen path. This prevents sweat from entering through the hollow space 600 and causing corrosion of the flexible display module 10 traces (such as the bonding pads of the connecting section 430), thus improving display abnormalities such as black screen and flickering. The sealing part 510 can be used to seal the opening 610 of the hollow space 600. The connecting section 430 is provided with bonding pads, such as gold fingers.

[0062] Optionally, the area of ​​the cross-section of the sealing portion 510 perpendicular to the first direction X is larger than the area of ​​the cross-section of the opening 610 perpendicular to the first direction X. Since the area of ​​the sealing portion 510 is larger than the area of ​​the opening 610, the sealing portion 510 can completely cover the opening 610, preventing sweat from intruding through the hollow space 600 and causing corrosion of the wiring in the flexible display module 10.

[0063] Optionally, along the thickness direction of the display portion (parallel to the thickness direction Z), the height of the sealing portion 510 is greater than the height of the hollow space 600. With the sealing portion 510 higher than the hollow space 600, the sealing portion 510 can better cover the opening 610.

[0064] Optionally, along the direction from the bend 130 to the pad height 300 (parallel to the second direction Y), the length of the sealing portion 510 is greater than the length of the hollow space 600. The greater length of the sealing portion 510 compared to the hollow space 600 better covers the opening 610, further increasing the water and oxygen pathway and preventing sweat from intruding through the hollow space 600 and causing corrosion of the wiring in the flexible display module 10.

[0065] Please refer to the following: Figure 3 and Figure 4 , Figure 3 This is a top view schematic diagram of a flexible display module provided in another embodiment; Figure 4 This is a partial cross-sectional view of a flexible display module provided in another embodiment.

[0066] Optional, such as Figure 4 As shown, the flexible display module 10 also includes a protective layer 440. The protective layer 440 is located on the side of the flexible display panel 100 where the bent portion 130 is away from the padding layer 300, and the protective layer 440 completely covers the bent portion 130. Since the protective layer 440 completely covers the bent portion 130, when the flexible display panel 100 is bent, the protective layer 440 can bend along with the bent portion 130. In the bent state, the protective layer 440 can increase the strength and toughness of the bent portion 130, preventing the bent portion 130 from breaking during bending.

[0067] In some alternative embodiments, such as Figure 3 As shown, one of the sealing part 510 and the flexible circuit board 400 is provided with a protrusion 520, and the other is provided with a groove 420. The protrusion 520 and the groove 420 are snapped together.

[0068] Optionally, the flexible circuit board 400 is provided with a protrusion 520, and the sealing part 510 is provided with a groove 420.

[0069] Optional, combined Figure 2 and Figure 3 As shown, the flexible circuit board 400 also includes an extension 450 located on the side of the inclined section 410 away from the connecting section 430, with a protrusion 520 or a groove 420 located in the extension 450.

[0070] In these optional embodiments, the sealing part 510 and the flexible circuit board 400 are connected by a protrusion 520 and a groove 420, allowing the sealing part 510 to be fixedly disposed on one side of the hollow space 600 in the first direction X. The sealing part 510 and the flexible circuit board 400 form a tenon-and-mortise structure through the protrusion 520 and the groove 420, which has a limiting function to prevent the flexible circuit board 400 from being misaligned, resulting in gaps between the edge of the flexible circuit board 400 and the sealing structure 500. Furthermore, the sealing part 510 can be tightly fitted to the opening 610 of the hollow space 600, thereby sealing the hollow space 600 and preventing sweat from entering through the hollow space 600 and causing corrosion of the wiring in the flexible display module 10, thus improving display abnormalities such as black screen and screen flickering.

[0071] like Figure 3As shown, in some optional embodiments, the protrusion 520 is disposed on the sealing portion 510 and protrudes from the sealing portion 510 toward the flexible circuit board 400, and the groove 420 is disposed on the flexible circuit board 400 and recessed from the flexible circuit board 400 in a direction away from the sealing portion 510.

[0072] In these optional embodiments, the sealing structure 500 is composed of a sealing portion 510 and a protrusion 520. The protrusion 520 is connected to the groove 420 of the flexible circuit board 400, so that the sealing portion 510 can be fixedly disposed on one side of the hollow space 600 in the first direction X, and the sealing portion 510 can be tightly disposed against the opening 610 of the hollow space 600 to prevent gaps from forming between the sealing portion 510 and the flexible circuit board 400, thereby sealing the hollow space 600.

[0073] Optionally, one of the sealing part 510 and the padding layer 300 is provided with a protrusion 520 and the other is provided with a groove 420, and the protrusion 520 and the groove 420 are snap-fitted together.

[0074] Optionally, the sealing part 510 is provided with a protrusion, and the padding layer 300 is provided with a groove 420. Optionally, the sealing part 510 is provided with a groove 420, and the padding layer 300 is provided with a protrusion 520.

[0075] In these alternative embodiments, the groove 420 is located on the pad layer 300. Alternatively, the groove 420 is located on the sealing portion 510. The groove 420 is formed by directly cutting grooves on the pad layer 300 and / or the sealing portion 510, avoiding cutting grooves on the flexible circuit board 400 and damaging the flexible circuit board 400.

[0076] Optionally, the cutout space 600 can be reused as a groove 420, and the protrusion 520 can be snapped into the cutout space 420. The protrusion 520 is set to a size that fits the cutout space 420, thereby enabling the snap-fit ​​connection and avoiding the need to cut grooves in the flexible circuit board 400, which could damage the flexible circuit board 400.

[0077] Please see Figure 5 and Figure 6 , Figure 5 yes Figure 3 Sectional view at point AA; Figure 6 yes Figure 3 Another sectional view at point AA.

[0078] like Figure 5 and Figure 6As shown, in some optional embodiments, the sealing portion 510 includes a first side 511, a second side 512, and a third side 513. The third side 513 is connected to the first side 511 and the second side 512. The first side 511 is perpendicular to the second side 512 and is attached to the flexible circuit board 400. The second side 512 faces the display portion 110. The second side 512 can be attached to the display portion 110.

[0079] In these optional embodiments, the first side 511 and the second side 512 form a right angle and are tightly attached to the right angle formed by the side of the flexible circuit board 400 and the flexible display panel 100. This makes the sealing part 510 fit more tightly with the side of the flexible circuit board 400 through the first side 511, preventing gaps from forming between the sealing part 510 and the flexible circuit board 400. This can better seal the hollow space 600, prevent sweat from entering through the hollow space 600 and causing corrosion of the wiring of the flexible display module 10, and improve display abnormalities such as black screen and screen flickering.

[0080] Optional, such as Figure 5 and Figure 6 As shown, one end of the third side 513 is connected to the end of the first side 511 that is away from the flexible display panel 100, and the other end of the third side 513 is connected to the end of the second side 512 that is away from the flexible circuit board 400. The third side 513 is a sloped or curved surface. The thickness of the third side 513 can gradually decrease in the direction away from the flexible circuit board 400 (parallel to the first direction X).

[0081] Optionally, the first side 511 is perpendicular to the display unit 110. Optionally, the angle between the third side 513 and the display unit 110 is an acute angle.

[0082] In these optional embodiments, the third side 513 is a slope or an arc, and the angle between the third side 513 and the flexible display panel 100 is an acute angle, so that when sweat drips onto the flexible circuit board 400, it can be quickly guided to other parts of the flexible display panel 100 through the third side 513, preventing sweat from entering through the hollow space 600 and causing corrosion of the flexible display module 10 wiring, thus improving display abnormalities such as black screen and screen flickering.

[0083] Please continue reading. Figure 1 In some optional embodiments, the flexible circuit board 400 includes a first region 401 and a second region 402, an inclined segment 410 located in the first region 401, and the second region 402 protruding from the first region 401 and extending along a second direction Y. The second region 402 is located on the side of the first region 401 away from the cutout space 600.

[0084] In these alternative embodiments, the flexible circuit board 400 is connected to the flexible display panel 100 in the first region 401 and to other components of the flexible display module 10 in the second region 402, thereby realizing the electrical connection between the flexible display panel 100 and the components and realizing the light-emitting display of the flexible display panel 100.

[0085] Please see Figure 7 , Figure 7 This is a partial cross-sectional view of a flexible display module provided in another embodiment.

[0086] In some optional embodiments, the flexible display module 10 further includes an integrated circuit 700, which is located on the side of the bonding portion 120 away from the display portion 110. The integrated circuit 700 is located between the flexible circuit board 400 and the bending portion 130, and the integrated circuit 700 is spaced apart from the flexible circuit board 400.

[0087] In these alternative embodiments, the integrated circuit 700 is disposed on the bonding portion 120 to connect to the flexible display panel 100, thereby enabling signal processing and transmission between the integrated circuit 700 and the flexible display panel 100.

[0088] There are several ways to arrange the integrated circuit 700. For example, the integrated circuit 700 extends along the first direction X and is arranged in a long strip on the bonding part 120, making full use of space and improving space utilization.

[0089] Please continue reading. Figure 7 In some optional embodiments, the flexible circuit board 400 further includes a connecting segment 430 located on the side of the bonding portion 120 away from the display portion 110, and the flexible display module 10 further includes conductive adhesive 800 located between the connecting segment 430 and the bonding portion 120.

[0090] In these optional embodiments, the connecting segment 430 of the flexible circuit board 400 is connected to the bonding part 120 through conductive adhesive 800, thereby realizing the electrical connection between the flexible circuit board 400 and the flexible display panel 100 and ensuring the normal light-emitting function of the flexible display panel 100.

[0091] Conductive adhesive 800 is disposed between the flexible circuit board 400 and the bonding portion 120. In this application, in order to ensure a stable connection between the flexible circuit board 400 and the bonding portion 120, the conductive adhesive 800 is adhesive to enhance the bonding force between the flexible circuit board 400 and the bonding portion 120 and prevent the flexible circuit board 400 from detaching from the flexible display panel 100. Generally, the conductive adhesive 800 includes anisotropic conductive film (ACF).

[0092] Optionally, the flexible circuit board 400 and the sealing structure 500 are integrally formed. On the one hand, the flexible circuit board 400 and the sealing structure 500 can be fabricated simultaneously, simplifying the fabrication process. On the other hand, since the flexible circuit board 400 and the sealing structure 500 are an integral structure, there are no gaps between them, further increasing the sealing performance of the sealing structure 500 and better preventing sweat from intruding through the perforated space 600 and causing corrosion of the wiring in the flexible display module 10.

[0093] Please refer to, Figure 8 , Figure 8 This is a partial cross-sectional view of a flexible display module provided in another embodiment.

[0094] In some alternative embodiments, the flexible display module 10 includes a support layer 200 located on the side of the display portion 110 near the bonding portion 120.

[0095] Optionally, the support layer 200 includes a support film 210 and a buffer layer 220. The support film 210 is located on the side of the display section 110 near the bonding section 120, and the buffer layer 220 is located on the side of the support film 210 away from the display section 110.

[0096] In these optional embodiments, the support layer 200 includes a support film 210 and a buffer layer 220. The support film 210 is attached to the flexible display panel 100, increasing the strength and toughness of the flexible display module 10 and enhancing the protective effect of the support layer 200 on the flexible display panel 100. The buffer layer 220 is bonded to the support film 210, so that the side of the flexible display panel 100 facing the support layer 200 is cushioned when impacted, increasing its drop resistance.

[0097] Optionally, when the flexible display panel 100 is bent, the support film 210 includes a first part and a second part. One of the first part and the second part is located between the buffer layer 220 and the display part 110, and the other part is located between the padding layer 300 and the bonding part 120. The support film 210 is attached to the display part 110 and the bonding part 120, which increases the overall strength and toughness of the flexible display module 10 and enhances the protective effect of the support layer 200 on the flexible display panel 100.

[0098] In some alternative embodiments, the support layer 200 further includes a metal layer 230 located on the side of the buffer layer 220 opposite to the support membrane 210, and the metal layer 230 is connected to the flexible circuit board 400. The flexible circuit board 400 also includes an extension section 450 located on the side of the inclined section 410 away from the connecting section 430, and the metal layer 230 is connected to the extension section 450.

[0099] In these optional embodiments, the metal layer 230 is located on the side of the buffer layer 220 away from the support film 210, further increasing the strength and toughness of the flexible display module 10, thereby increasing the drop resistance of the flexible display module 10 and further enhancing the protective effect of the support layer 200 on the flexible display panel 100. The metal layer 230 is connected to the flexible circuit board 400, allowing some components to be connected to the flexible circuit board 400 through the metal layer 230, thus achieving circuit conduction between them and the flexible display panel 100. The metal layer 230 is connected to the extension section 450, allowing static electricity generated on the flexible circuit board 400 to be discharged through the metal layer 230, improving electrostatic damage.

[0100] The buffer layer 220 is made of a material that is elastic, lightweight, flexible, and ultra-thin, such as foam. The metal layer 230 is made of a metal material with good ductility, such as copper foil.

[0101] like Figure 3 As shown, in some optional embodiments, there are two sealing structures 500, which are disposed on both sides of the flexible circuit board 400 in the first direction X and are sealed to the opening 610 of the hollow space 600.

[0102] In these optional embodiments, two sealing structures 500 are respectively disposed on both sides of the flexible circuit board 400 in the first direction X to block the opening 610, thereby sealing the hollow space 600 of the flexible circuit board 400, further preventing sweat from entering through the hollow space 600 and causing corrosion of the wiring of the flexible display module 10, and improving display abnormalities such as black screen and screen flickering.

[0103] Please refer to the following: Figure 9 and Figure 10 , Figure 9 This is a top view schematic diagram of a flexible display module provided in another embodiment; Figure 10 yes Figure 9 Sectional view at point AA.

[0104] Optionally, the sealing structure 500 further includes a cover portion 530, which is located at least on the side of the inclined section 410 opposite to the hollow space 600, and is connected to the sealing portion 510. The cover portion 530 increases the contact area between the sealing portion 510 and the flexible circuit board 400, thereby improving the sealing performance and increasing the water and oxygen pathway, preventing sweat from entering through the hollow space 600 and causing corrosion of the traces in the flexible display module 10. The cover portion 530 can be connected to the flexible circuit board 400.

[0105] like Figure 8 As shown, optionally, the flexible display module 10 also includes a polarizing layer 12 and a cover plate 11, wherein the polarizing layer 12 is provided with a polarizer.

[0106] A second aspect of the present invention also provides a display device including the flexible display panel 100 of any of the first aspect embodiments described above. Since the display device provided in the second aspect of the present invention includes the flexible display panel 100 of any of the first aspect embodiments described above, the display device provided in the second aspect of the present invention has the beneficial effects of the flexible display panel 100 of any of the first aspect embodiments described above, which will not be elaborated further here.

[0107] 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.

[0108] 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 flexible display module, characterized in that, include: A flexible display panel includes a display portion, a bonding portion, and a bending portion connecting the display portion and the bonding portion. The display portion includes a display side and a non-display side disposed opposite to each other. The bonding portion is bent to the non-display side of the display portion via the bending portion. A padding layer is located between the display section and the binding section; A flexible circuit board includes a connecting segment and an inclined segment located on the non-display side of the display portion and connected sequentially in a direction away from the bending portion. The connecting segment is connected to the bonding portion. The inclined segment, the display portion, and the padding layer enclose a hollow space extending in a first direction. The hollow space has openings at both ends in the first direction. A sealing structure is disposed on at least one side of the flexible circuit board in the first direction and sealed to at least one opening of the hollow space. The sealing structure includes a sealing portion that completely covers the opening and the sealing portion extends in a second direction. The sealing portion includes a first side, a second side, and a third side connecting the first side and the second side. The first side is perpendicular to the second side and is attached to the flexible circuit board, and the second side faces the display portion. One end of the third side is connected to the end of the first side that is away from the flexible display panel, and the other end of the third side is connected to the end of the second side that is away from the flexible circuit board. The third side is a sloping surface or an arc surface. One of the sealing part and the padding layer is provided with a protrusion, and the other is provided with a groove, and the protrusion and the groove are snap-fitted together; the protrusion is provided in the sealing part, and the groove is located in the padding layer.

2. The flexible display module according to claim 1, characterized in that, One of the sealing part and the flexible circuit board is provided with a protrusion, and the other is provided with a groove, and the protrusion and the groove are snap-fitted together.

3. The flexible display module according to claim 2, characterized in that, A portion of the grooves are located on the flexible circuit board.

4. The flexible display module according to claim 2, characterized in that, A portion of the protrusions are connected to the hollow space snap fastener.

5. The flexible display module according to claim 2, characterized in that, The area of ​​the cross section of the sealing part perpendicular to the first direction is greater than the area of ​​the cross section of the opening perpendicular to the first direction.

6. The flexible display module according to claim 2, characterized in that, Along the thickness direction of the display portion, the height of the sealing portion is greater than the height of the hollow space; along the direction from the bent portion to the padding layer, the length of the sealing portion is greater than the length of the hollow space.

7. The flexible display module according to claim 1, characterized in that, The sealing structure further includes a cover portion, which is located at least on the side of the inclined section opposite to the hollow space. The cover portion is connected to the sealing portion and is connected to the flexible circuit board.

8. The flexible display module according to claim 1, characterized in that, The first side is perpendicular to the display unit, and the angle between the third side and the display unit is an acute angle.

9. The flexible display module according to claim 1, characterized in that, The flexible display module further includes an integrated circuit, which is located on the side of the bonding portion away from the display portion. The integrated circuit is located between the flexible circuit board and the bending portion, and the integrated circuit is spaced apart from the flexible circuit board. And / or, the flexible display module further includes conductive adhesive, which is located between the connecting segment and the bonding portion.

10. The flexible display module according to claim 1, characterized in that, The flexible circuit board and the sealing structure are integrally formed.

11. The flexible display module according to claim 1, characterized in that, The flexible display module includes a support layer, which is located on the side of the display unit near the bonding portion. The support layer includes: The support film is located on the side of the display unit near the bonding portion; A buffer layer is located on the side of the support film opposite to the display portion.

12. The flexible display module according to claim 11, characterized in that, The support layer further includes a metal layer located on the side of the buffer layer away from the support membrane. The flexible circuit board also includes an extension section located on the side of the inclined section away from the connecting section. The metal layer is connected to the extension section, and static electricity is discharged through the metal layer when the flexible circuit board generates static electricity.

13. The flexible display module according to claim 1, characterized in that, The number of sealing structures is two, and the two sealing structures are disposed on both sides of the flexible circuit board in the first direction and are sealed to the opening of the hollow space.

14. A flexible display module, characterized in that, include: A flexible display panel includes a display portion, a bonding portion, and a bending portion connecting the display portion and the bonding portion. The display portion includes a display side and a non-display side disposed opposite to each other. The bonding portion is bent to the non-display side of the display portion via the bending portion. A padding layer is located between the display section and the binding section; A flexible circuit board includes a connecting segment and an inclined segment located on the non-display side of the display portion and connected sequentially in a direction away from the bending portion. The connecting segment is connected to the bonding portion. The inclined segment, the display portion, and the padding layer enclose a hollow space extending in a first direction. The hollow space has openings at both ends in the first direction. A sealing structure is disposed on at least one side of the flexible circuit board in the first direction and sealed to at least one opening of the hollow space. The sealing structure includes a sealing portion that completely covers the opening and the sealing portion extends in a second direction. The number of sealing structures is two, and the two sealing structures are disposed on both sides of the flexible circuit board in the first direction and are sealed to the opening of the hollow space. One of the sealing part and the flexible circuit board is provided with a protrusion, and the other is provided with a groove, and the protrusion and the groove are snap-fit ​​connected. One of the sealing part and the padding layer is provided with a protrusion, and the other is provided with a groove, and the protrusion and the groove are snap-fit ​​connected. The flexible circuit board further includes an extension section located on the side of the inclined section away from the connecting section, the protrusion or groove corresponding to the sealing portion and the flexible circuit board is located on the extension section, and the groove is located on the flexible circuit board; a portion of the protrusions are disposed on the sealing portion; A portion of the protrusions are connected to the hollow space buckle; The sealing structure further includes a cover portion, which is located at least on the side of the inclined section opposite to the hollow space. The cover portion is connected to the sealing portion and is connected to the flexible circuit board.

15. A display device, characterized in that, Includes the flexible display module as described in any one of claims 1-14.

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