Display device and electronic device

Abstract

The application provides a display device and an electronic equipment. The display device comprises a display panel, a flexible circuit board and a sealing glue. The flexible circuit board comprises a first base material, a conductive layer and a second base material in a first direction. The conductive layer is located between the first base material and the second base material. The flexible circuit board comprises a non-bending part and a bending part connected with each other in a second direction. An included angle is formed between the bending part and the non-bending part, and the first direction intersects with the second direction. The conductive layer of the non-bending part comprises a first connecting area and a second connecting area connected with each other, both the first connecting area and the second connecting area are exposed relative to the first base material, and the first connecting area is fixedly connected with the display panel. The sealing glue is fixedly connected with the second connecting area, the display panel and the first base material of the bending part. When the bending part is bent relative to the non-bending part, the sealing glue shrinks in volume. The sealing glue of the application shrinks in volume when the flexible circuit board is bent, so that the bending radius of the flexible circuit board is small.

Description

Technical Field

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

[0002] In current display devices, flexible circuit boards (PCBs) typically need to be bonded to the display panel. However, due to limitations in the precision of the bonding equipment, a certain amount of space often needs to be left during the bonding process. This results in some of the PCB's gold fingers being exposed to the air after bonding to the display panel. UV adhesive is usually used to seal these exposed gold fingers to prevent corrosion from moisture in the external environment. However, to ensure the sealing performance of the UV adhesive, a relatively large coating thickness is typically applied. This causes interference from the cured UV adhesive when the PCB is bent relative to the display panel, resulting in a larger bending radius and making the PCB more susceptible to interference with other internal structures of the display device, potentially leading to damage. Summary of the Invention

[0003] This application provides a display device and an electronic device including the display device, with the aim of obtaining a display device with a small bending radius of a flexible circuit board and an electronic device including the display device.

[0004] A first aspect provides a display device. The display device includes a display panel, a flexible circuit board, and a sealant. The flexible circuit board includes a first substrate, a conductive layer, and a second substrate in a first direction. The conductive layer is located between the first substrate and the second substrate. The flexible circuit board includes a non-bending portion and a bending portion interconnected in a second direction. The bending portion and the non-bending portion form an angle, and the first direction intersects the second direction. The conductive layer of the non-bending portion includes a first connection area and a second connection area interconnected, both of which are exposed relative to the first substrate, and the first connection area is fixedly connected to the display panel. The sealant fixes the second connection area, the display panel, and the first substrate of the bending portion. The sealant is used to shrink its volume when the bending portion is bent relative to the non-bending portion.

[0005] In one possible implementation, the sealant includes a tensile material, which is used to shrink the volume of the sealant when the bent portion is bent relative to the non-bent portion.

[0006] In one possible implementation, the tensile material includes tensile polyurethane foam particles, α-diatomite particles, or polytetrafluoroethylene polymer.

[0007] In one possible implementation, the mass ratio of the tensile material to the sealant is in the range of 13% to 23%.

[0008] In one possible implementation, the length of the sealant in the second direction is in the range of 0.2 mm to 1 mm.

[0009] In one possible implementation, the display panel includes a side surface and a first surface and a second surface disposed opposite to each other. The side surface of the display panel is connected between the first surface and the second surface. A first connection area is fixedly connected to the first surface. The side surface has a groove, and at least a portion of the sealant is located in the groove.

[0010] In one possible implementation, the groove wall near the first surface is called the first groove wall, the distance between the first groove wall and the first surface in the first direction is called the first distance, the first distance is a, and the thickness of the sealant in the first direction is b, satisfying: 0.1mm≤a≤b.

[0011] In one possible implementation, the groove wall near the second surface is called the second groove wall, and the distance between the second groove wall and the second surface in the first direction is called the second distance, which is c, and satisfies: 0 < c ≤ 0.1 mm.

[0012] In one possible implementation, the width of the groove in the second direction is L, and satisfies: 0 < L < 1 mm, where the second direction is the length direction of the display panel.

[0013] In one possible implementation, the groove is provided with a plurality of spaced partitions, the extension directions of which all intersect with the first direction, the partitions are arranged along the first direction, and the thickness of the partitions in the first direction is in the range of micrometers to micrometers.

[0014] Secondly, an electronic device is provided. The electronic device includes the aforementioned display device.

[0015] It is understood that the sealant in the display device of this embodiment can shrink in volume when compressed. Thus, when the flexible circuit board is bent relative to the sealant, the portion of the sealant that has diffused into the first substrate can shrink in volume towards the portion of the sealant located in the second connection area of ​​the conductive layer under external force. This allows the bending radius R2 of the flexible circuit board to be equal to or approximately equal to the length H1 of the first portion of the sealant in the second direction. In this way, on the one hand, the sealant can isolate the second connection area of ​​the conductive layer from moisture, preventing it from being corroded by moisture; on the other hand, the sealant can shrink its own volume when the flexible circuit board is bent, thereby effectively reducing the influence of the sealant on the bending radius of the flexible circuit board. Compared to display devices where the sealant does not include tensile material, the flexible circuit board of the display device in this embodiment has a shorter bending radius, which can effectively avoid interference between the flexible circuit board and other internal structures of the display device, preventing damage to the flexible circuit board and improving the product's lifespan. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0017] Figure 1 This is a partial cross-sectional view of the display device in some designs;

[0018] Figure 2 yes Figure 1 The shown is a partial cross-sectional view of the display device before the flexible circuit board is bent.

[0019] Figure 3 yes Figure 2 The diagram shows a partial enlarged view of the display device before the flexible circuit board is bent.

[0020] Figure 4 yes Figure 1 The diagram shows a partial enlarged structural view of the display device after the flexible circuit board has been bent.

[0021] Figure 5 This is a partial cross-sectional view of a display device provided in this embodiment in the first embodiment;

[0022] Figure 6 yes Figure 5 The shown is a partial cross-sectional view of the display device before the flexible circuit board is bent.

[0023] Figure 7 yes Figure 6 The diagram shows a partial enlarged view of the display device before the flexible circuit board is bent.

[0024] Figure 8 yes Figure 5 The diagram shows a partial enlarged structural view of the display device after the flexible circuit board has been bent.

[0025] Figure 9 yes Figure 5 A partial cross-sectional view of the display panel of the display device shown in the second embodiment;

[0026] Figure 10 yes Figure 9 A partial cross-sectional view of the display panel of the display device shown in the third embodiment;

[0027] Figure 11 This is a schematic diagram of the structure of an electronic device provided in this embodiment in some embodiments.

[0028] Explanation of reference numerals in the attached figures

[0029] 1000 - Electronic device; 100 - Display device; 10 - Flexible circuit board; 20 - Display panel; 30 - Sealant; 11 - First substrate; 12 - Conductive layer; 13 - Second substrate; 121 - First connection area; 122 - Second connection area; 123 - Third connection area; 10a - Non-bending portion; 10b - Bending portion; 21 - Color filter substrate; 22 - Array substrate; 23 - Side surface; 24 - First surface; 25 - Second surface; 26 - Groove; 261 - First groove wall; 26 2-Second groove wall; 263-Partition; 264-Small groove; 31-First part; 32-Second part; 200-Display device; 210-Display panel; 220-Flexible circuit board; 230-Sealant; 221-First substrate; 222-Conductive layer; 223-Second substrate; 224-First connection area; 225-Second connection area; 226-Third connection area; 231-First part; 232-Second part; 220a-Non-bending part; 220b-Bending part. Detailed Implementation

[0030] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this application, such as "inner" and "outer," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. "Multiple" refers to at least two.

[0031] In the embodiments of this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0032] The reference to "some embodiments" described in this specification means that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrase "some embodiments" appearing in various parts of this specification does not necessarily refer to the same embodiment, but rather means "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "having," and variations thereof mean "including, but not limited to," unless otherwise specifically emphasized.

[0033] It is understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0034] Figure 1 This is a partial cross-sectional view of the display device 200 in some embodiments.

[0035] like Figure 1 As shown, the display device 200 may include a display panel 210, a flexible circuit board 220, and a sealant 230. The flexible circuit board 220 may include a first substrate 221, a conductive layer 222, and a second substrate 223 in the thickness direction of the display device 200. The conductive layer 222 may be located between the first substrate 221 and the second substrate 223. The conductive layer 222 may include a first connection area 224, a second connection area 225, and a third connection area 226. Both the first connection area 224 and the second connection area 225 of the conductive layer 222 may be exposed relative to the first substrate 221. The first substrate 221 may be connected to the third connection area 226 of the conductive layer 222.

[0036] The flexible circuit board 220 may include a non-bending portion 220a and a bending portion 220b connected sequentially along the length of the display device 200. It should be understood that... Figure 1 The non-bending portion 220a and the bending portion 220b are outlined with dashed lines. An angle is formed between the non-bending portion 220a and the bending portion 220b. The non-bending portion 220a may include a portion of the conductive layer 222, a portion of the second substrate 223, and a portion of the first substrate 221. The bending portion 220b may include a portion of the first substrate 221, a portion of the conductive layer 222, and a portion of the second substrate 223. The first connection area 224 and the second connection area 225 of the conductive layer 222 may also be located in the non-bending portion 220a. The first connection area 224 of the conductive layer 222 can be fixedly connected to the display panel 210. The sealant 230 can fixably connect the second connection area 225 of the conductive layer 222 of the non-bending portion 220a, the first substrate 221 of the non-bending portion 220a, the display panel 210, and the first substrate 221 of the bending portion 220b.

[0037] Figure 2 yes Figure 1 The diagram shows a partial cross-sectional view of the display device 200 before the flexible circuit board 220 is bent. Figure 3 yes Figure 2 The diagram shows an enlarged view of the display device 200 before the flexible circuit board 220 is bent. Figure 4 yes Figure 1 The diagram shows an enlarged view of the display device 200 after the flexible circuit board 220 has been bent.

[0038] like Figures 2 to 4 As shown, during the assembly process of the display panel 210 and the flexible circuit board 220 of the display device 200, the first connection area 224 of the conductive layer 222 is first fixedly connected to the display panel 210, and then sealant 230 is applied to the second connection area 225 of the conductive layer 222. After the sealant 230 is cured, the flexible circuit board 220 is bent relative to the sealant 230 (that is, bent relative to the display panel 210) to complete the assembly between the display panel 210 and the flexible circuit board 220. At this time, the bent portion 220b is bent relative to the non-bent portion 220a. The bending radius of the flexible circuit board 220 is equal to the length of the sealant 230 in the length direction of the display device 200 (that is, the length of the non-bent portion 220a of the flexible circuit board 220 in the length direction of the display device 200).

[0039] It is understandable that when the sealant 230 is applied to the second connection area 225 of the conductive layer 222, because the sealant 230 is fluid before curing, it will spread outwards after being applied to the second connection area 225, for example, spreading to the surface of the first substrate 221 of the bent portion 220b. In this case, the sealant 230 may include a first portion 231 and a second portion 232. Figure 3 and Figure 4 The first portion 231 and the second portion 232 of the sealant 230 are both indicated by dashed lines. The first portion 231 of the sealant 230 is fixedly connected to the second connection area 225. The second portion 232 of the sealant 230 is fixedly connected to the surface of the first substrate 221 facing away from the conductive layer 222. The length of the first portion 231 of the sealant 230 in the longitudinal direction of the display device 200 is H1. The length of the second portion 232 of the sealant 230 in the longitudinal direction of the display device 200 is H2 (e.g., ...). Figure 3 (As shown).

[0040] After the sealant 230 cures, when the flexible circuit board 220 is bent, because a portion of the sealant 230 is fixedly connected to the surface of the first substrate 221 facing away from the conductive layer 222 (i.e., the second part 232 of the sealant 230), the non-bending portion 220a formed after bending the flexible circuit board 220 includes a portion of the conductive layer 222, a portion of the second substrate 223, and a portion of the first substrate 221. The sealant 230 fixes the second connection area 225 of the conductive layer 222 of the non-bending portion 220a, the first substrate 221 of the non-bending portion 220a, the display panel 210, and the first substrate 221 of the bending portion 220b. At this time, the bending radius of the flexible circuit board 220 is the distance from the end face of the display panel 210 near the sealant 230 to the boundary line between the non-bending portion 220a and the bending portion 220b of the flexible circuit board 220. The bending radius R1 of the flexible circuit board 220 satisfies:

[0041] H1 <R1≤H1+H2

[0042] At this point, the flexible circuit board 220 has a relatively large bending radius, making it prone to interference with other structures within the display device 200, and thus easily damaged. The bending radius of the flexible circuit board 220 can be in the range of 0.5 mm to 1.5 mm.

[0043] The display device 200 provided in this embodiment shortens the bending radius of the flexible circuit board 220 by changing the properties of the sealant 230, thereby reducing the interference between the flexible circuit board 220 and other structures and reducing the probability of damage to the flexible circuit board 220.

[0044] For ease of description, the width direction of the display device 100 is defined as the X-axis in the following text and accompanying figures. The length direction of the display device 100 is defined as the Y-axis. The thickness direction of the display device 100 is defined as the Z-axis. It is understood that the coordinate system of the display device 100 can be flexibly set according to specific practical needs.

[0045] Figure 5 This is a partial cross-sectional view of a display device 100 provided in this embodiment in the first embodiment.

[0046] like Figure 5As shown, the display device 100 may include a flexible circuit board 10, a display panel 20, and a sealant 30. The display panel 20 may include a color filter substrate 21 and an array substrate 22 stacked together. At least a portion of the array substrate 22 may be exposed relative to the color filter substrate 21. The flexible circuit board 10 may include a first substrate 11, a conductive layer 12, and a second substrate 13 in a first direction. The first direction may be the thickness direction of the display device 100 (i.e., the Z-axis direction in this embodiment). The conductive layer 12 may be located between the first substrate 11 and the second substrate 13. The conductive layer 12 may include a first connection area 121, a second connection area 122, and a third connection area 123. Both the first connection area 121 and the second connection area 122 of the conductive layer 12 may be exposed relative to the first substrate 11. The first substrate 11 may be fixedly connected to the third connection area 123 of the conductive layer 12. The first connection area 121 may be fixedly connected to the array substrate 22 of the display panel 20. For example, the first connection area 121 may be fixedly connected to the array substrate 22 using conductive adhesive.

[0047] For example, the flexible circuit board 10 may include a non-bending portion 10a and a bending portion 10b connected in sequence in the second direction. The second direction may be the length direction of the display device 100 (i.e., the Y-axis direction in this embodiment). The first direction may intersect with the second direction. An angle is formed between the non-bending portion 10a and the bending portion 10b.

[0048] For example, the non-bending portion 10a may include a portion of the conductive layer 12 and a portion of the second substrate 13. The bending portion 10b may include a first substrate 11, a portion of the conductive layer 12, and a portion of the second substrate 13. The first connection area 121 and the second connection area 122 of the conductive layer 12 may both be located in the non-bending portion 10a. The sealant 30 can fixably connect the second connection area 122 of the conductive layer 12 of the non-bending portion 10a, the first substrate 11 of the non-bending portion 10a, the array substrate 22 of the display panel 20, and the first substrate 11 of the bending portion 10b.

[0049] For example, the sealant 30 can fixably connect the second connection area 122 of the non-bending portion 10a, the array substrate 22 of the display panel 20, and the first substrate 11 of the bending portion 10b. The sealant 30 may include a tensile material. This tensile material may include tensile polyurethane foam particles, α-diatomite particles, or polytetrafluoroethylene polymers, or other materials with tensile properties. Tensile properties refer to the characteristic of a material to shrink in volume when compressed.

[0050] For example, sealant 30 can be a UV adhesive with added tensile material. The mass ratio of the tensile material to sealant 30 can be in the range of 13% to 23%. The mass ratio of the tensile material to the UV adhesive can be in the range of 15% to 30%. For example, when the mass of the tensile material is 15g, the mass of the UV adhesive can be 100g, and the total mass of sealant 30 can be 115g.

[0051] Figure 6 yes Figure 5 The diagram shows a partial cross-sectional view of the display device 100 before the flexible circuit board 10 is bent. Figure 7 yes Figure 6 The diagram shows an enlarged view of the display device 100 before the flexible circuit board 10 is bent. Figure 8 yes Figure 5 The diagram shows an enlarged view of part of the structure of the display device 100 after the flexible circuit board is bent.

[0052] like Figures 6 to 8 As shown, during the assembly process of the display panel 20 and the flexible circuit board 10 of the display device 100, the first connection area 121 of the conductive layer 12 is first fixedly connected to the display panel 20, and then sealant 30 is applied to the second connection area 122 of the conductive layer 12. After the sealant 30 is cured, the flexible circuit board 10 is bent relative to the sealant 30 (that is, bent relative to the display panel 20) to complete the assembly between the display panel 20 and the flexible circuit board 10. At this time, the bent portion 10b is bent relative to the non-bent portion 10a. The bending radius of the flexible circuit board 10 is equal to the length of the sealant 30 in the longitudinal direction of the display device 100 (that is, the length of the non-bent portion 10a of the flexible circuit board 10 in the second direction).

[0053] When the sealant 30 is applied to the second connection area 122 of the conductive layer 12, because the sealant 30 is fluid before curing, it will spread outwards after being applied to the second connection area 122, for example, onto the surface of the first substrate 11 of the bent portion 10b. At this time, the sealant 30 may include a first portion 31 and a second portion 32. The first portion 31 of the sealant 30 is fixedly connected to the second connection area 122. The second portion 32 of the sealant 30 is fixedly connected to the surface of the first substrate 11 facing away from the conductive layer 12. The length of the first portion 31 of the sealant 30 in the longitudinal direction of the display device 100 is H1. The length of the second portion 32 of the sealant 30 in the longitudinal direction of the display device 100 is H2 (e.g., ...). Figure 7 (As shown).

[0054] After the sealant 30 cures, when the flexible circuit board 10 is bent, because the sealant 30 is filled with an expansion material and has expansion properties, the second part 32 of the sealant 30 can shrink in volume towards the first part 31 when subjected to external pressure (e.g., Figure 7 and Figure 8 (As shown). At this time, the non-bent portion 10a formed after bending the flexible circuit board 10 includes a portion of the conductive layer 12 (i.e., the first connection area 121 and the second connection area 122 of the conductive layer 12) and a portion of the second substrate 13. The sealant 30 can fixably connect the second connection area 122 of the conductive layer 12 of the non-bent portion 10a, the array substrate 22 of the display panel 20, and the first substrate 11 of the bent portion 10b. The length of the sealant 30 in the second direction refers to the length H1 of the first portion 31 of the sealant 30 in the second direction. At this time, the bending radius R2 of the flexible circuit board 10 can be equal to or approximately equal to the length H1 of the first portion 31 of the sealant 30 in the second direction. The bending radius R2 of the flexible circuit board 10 can be in the range of 0.2 mm to 1 mm.

[0055] It is understood that the display device 100 in this embodiment fills the sealant 30 with a tensile material, giving the sealant 30 tensile properties. Thus, when the flexible circuit board 10 is bent relative to the sealant 30 (i.e., when the bent portion 10b of the flexible circuit board 10 is bent relative to the non-bent portion 10a), the portion of the sealant 30 that diffuses to the first substrate 11 (i.e., the second portion 32 of the sealant 30) can shrink in volume under external force towards the portion of the sealant 30 located in the second connection area 122 of the conductive layer 12 (i.e., the first portion 31 of the sealant 30), so that the bending radius R2 of the flexible circuit board 10 can be equal to or approximately equal to the length H1 of the first portion 31 of the sealant 30 in the second direction. In this way, on the one hand, the sealant 30 can isolate the second connection area 122 of the conductive layer 12 from moisture, preventing it from being corroded by moisture; on the other hand, the sealant 30 is filled with a tensile material, which has tensile properties, allowing the sealant 30 to shrink its volume when the flexible circuit board 10 is bent, thereby effectively reducing the impact of the sealant 30 on the bending radius of the flexible circuit board 10. Compared to Figures 1 to 3 In the illustrated scheme, the sealant 230 does not include the display device 200 with tensile material. In this embodiment, the flexible circuit board 10 of the display device 100 has a shorter bending radius, which can effectively avoid interference between the flexible circuit board 10 and other internal structures of the display device 100, prevent damage to the flexible circuit board 10, and improve the service life of the product.

[0056] In other embodiments, the sealant 30 can also be made in other ways to shrink its own volume when the flexible circuit board 10b is bent relative to the flexible circuit board 10a, thereby reducing the influence of the sealant 30 on the bending radius of the flexible circuit board 10.

[0057] Figure 9 yes Figure 5 A partial cross-sectional view of the display panel 20 of the display device 100 shown in the second embodiment.

[0058] Please see Figure 9 and combined Figure 5 As shown, the structure of the display device 100 in this embodiment is similar to... Figure 4 The structure of the display device 100 shown is generally the same, and the same parts will not be described again. The difference is that the display panel 20 may include a side surface 23 and a first surface 24 and a second surface 25 disposed opposite to each other. The side surface 23 may be connected between the first surface 24 and the second surface 25. The first connection area 121 of the conductive layer 12 may be fixedly connected to the first surface 24 of the display panel 20. The side surface 23 of the display panel 20 may be provided with a groove 26. At least a portion of the sealant 30 may be accommodated in the groove 26.

[0059] For example, the groove wall of the recess 26 near the first surface 24 of the display panel 20 can be a first groove wall 261. The groove wall of the recess 26 near the second surface 25 of the display panel 20 can be a second groove wall 262. The distance between the first groove wall 261 and the first surface 24 in the first direction can be a first distance a. The thickness of the sealant 30 can be b. Here, the thickness of the sealant 30 refers to the thickness of the sealant 30 in the first direction (see [reference]). Figure 5 At this point, the first distance a and the thickness b of the sealant 30 can satisfy:

[0060] 0.1mm≤a≤b

[0061] The distance between the second groove wall 262 and the second surface 25 in the first direction is a second distance c. The thickness between the second distance c and the sealant 30 can satisfy:

[0062] 0 <c≤0.1mm

[0063] The width of the groove 26 in the second direction can be L, and satisfies:

[0064] 0 <L<1mm

[0065] It is understood that in this embodiment, by providing a groove 26 on the side 23 of the display panel 20, the sealant 30, after being applied to the conductive layer 12, can diffuse simultaneously into the groove 26 and into the first substrate 11. At this time, the sealant 30 also includes a third portion (not shown). This third portion of the sealant 30 is located within the groove 26. This avoids excessive accumulation of sealant 30 on the surface of the first substrate 11, reducing interference between the sealant 30 and the flexible circuit board 10 during subsequent bending, thereby effectively shortening the bending radius of the flexible circuit board 10.

[0066] Secondly, the first distance of the groove 26 is less than or equal to the thickness of the sealant 30, and greater than or equal to 0.1 mm. This ensures that the sealant 30 can diffuse into the groove 26, and that the distance between the groove 26 and the first surface 24 is sufficient to ensure that the display panel 20 supports the non-bending portion 10a of the flexible circuit board 10.

[0067] In addition, the second distance of the groove 26 is greater than 0, which ensures that the groove 26 has a second groove wall 262, so as to avoid the sealant 30 being directly applied to the groove 26 due to equipment error.

[0068] Figure 10 yes Figure 9 A partial cross-sectional view of the display panel 20 of the display device 100 shown in the third embodiment.

[0069] Please see Figure 10 and combined Figure 5 As shown, the structure of the display panel 20 of the display device 100 in this embodiment is similar to... Figure 9 The structure of the display panel 20 shown is largely the same, and the identical parts will not be described again. The difference lies in that, in this embodiment, the recess 26 of the display panel 20 has multiple partitions 263 inside, dividing the recess 26 into multiple spaced-apart small recesses 264. The extending directions of the multiple partitions 263 can all intersect with the first direction. For example, the extending direction of each partition 263 can be perpendicular to the first direction. The thickness of each partition 263 in the first direction can be in the range of 10 micrometers to 15 micrometers. The spacing between two adjacent partitions 263 in the first direction can be in the range of 20 micrometers to 50 micrometers; that is, the height of each small recess 264 in the first direction can be in the range of 20 micrometers to 50 micrometers.

[0070] In other embodiments, the number of partitions 263 may also be one.

[0071] It is understandable that if the sealant 30 does not completely fill the groove 26 when multiple partitions 263 are not provided inside the groove 26, moisture will accumulate and corrode the flexible circuit board 10. In this embodiment, the display device 100, based on the groove 26 provided on the side 23 of the display panel 20, further divides the groove 26 into multiple smaller grooves 264 in the first direction by providing multiple partitions 263 inside the groove 26. This makes it easier for the sealant 30 to fill a small groove 264, thereby reducing moisture accumulation within the small groove 264. Furthermore, even if the sealant 30 does not completely fill a small groove 264, the partitions 263 inside the groove 26 can still prevent moisture from corroding the flexible circuit board 10. In other words, by providing multiple partitions 263 inside the groove 26 in this embodiment, the risk of moisture accumulation inside the groove 26 when the sealant 30 is not completely filled, causing corrosion of the flexible circuit board 10, can be effectively reduced, thus improving the product's service life.

[0072] Figure 11 This is a schematic diagram of the structure of an electronic device 1000 provided in this embodiment in some embodiments.

[0073] like Figure 11 As shown, electronic device 1000 may include, but is not limited to, computer devices, tablet devices, mobile phones, digital cameras, etc. Electronic device 1000 may include display device 100, processor (not shown), memory (not shown), and power supply (not shown). Display device 100 may be electrically connected to the processor, memory, and power supply. The memory may be used to store instruction programs. The processor may be used to execute the instruction programs stored in the memory to perform one or more functions. For example, the processor may be configured to process electrical signals generated by display device 100. The processor may be configured to generate output (e.g., an image displayed by the display panel 20 of display device 100) based on the processed electrical signals.

[0074] In other embodiments, the electronic device 1000 may also include other components.

[0075] It should be noted that the inventive concept of this application can form many embodiments, but due to the limited space of the application documents, they cannot all be listed. Therefore, without conflict, the embodiments described above or the technical features can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effect will be enhanced.

[0076] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. A display device, characterized by comprising: The display device comprises a display panel, a flexible circuit board and a sealant. The flexible circuit board comprises a first substrate, a conductive layer and a second substrate in a first direction, and the conductive layer is located between the first substrate and the second substrate. The flexible circuit board comprises a non-bending part and a bending part connected to each other in a second direction, and an included angle is formed between the bending part and the non-bending part, and the first direction intersects the second direction. The conductive layer of the non-bending part comprises a first connecting area and a second connecting area connected to each other, and the first connecting area and the second connecting area are exposed relative to the first substrate, and the first connecting area is fixedly connected to the display panel. The sealant is fixedly connected to the second connecting area, the display panel and the first substrate of the bending part, and the sealant shrinks in volume when the bending part bends relative to the non-bending part.

2. The display device according to claim 1, wherein The sealant comprises a auxetic material, and the auxetic material is used to shrink the volume of the sealant under the action of the auxetic material when the bending part bends relative to the non-bending part.

3. The display device according to claim 2, wherein The auxetic material comprises auxetic polyurethane foam particles, alpha-quartz particles or polytetrafluoroethylene polymers.

4. The display device according to claim 2, wherein The mass ratio of the auxetic material to the sealant is in the range of 13% to 23%.

5. The display device according to any one of claims 1 to 4, wherein The length of the sealant in the second direction is in the range of 0.2mm to 1mm.

6. The display device according to any one of claims 1 to 4, wherein The display panel comprises a side surface and first and second surfaces arranged opposite to each other, the side surface of the display panel is connected between the first and second surfaces, and the first connecting area is fixedly connected to the first surface. The side surface is provided with a groove, and at least part of the sealant is located in the groove.

7. The display device according to claim 6, wherein The groove wall close to the first surface is a first groove wall, the distance between the first groove wall and the first surface in the first direction is a first distance, the first distance is a, the thickness of the sealant in the first direction is b, and 0.1mm≤a≤b is satisfied.

8. The display device according to claim 7, wherein The groove wall close to the second surface is a second groove wall, the distance between the second groove wall and the second surface in the first direction is a second distance, the second distance is c, and 0 9. The display device according to claim 7 or 8, characterized by The groove is provided with a plurality of spaced apart partitions, the extension directions of the plurality of partitions all intersect the first direction, the plurality of partitions are arranged along the first direction, and the thickness of the partitions in the first direction is in the range of 10μm to 15μm.

10. An electronic device, comprising: The display device comprises any one of claims 1 to 9.

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