Display device

Abstract

The embodiment of the utility model provides a display device, relates to the technical field of display, and aims to solve the problem that liquid on one side of a display panel easily erodes a binding bonding pad in the prior art. The display device includes a support member, a display panel, and a flexible circuit board. The display panel is arranged on the supporting piece; the flexible circuit board is electrically connected with the display panel; wherein the supporting piece comprises an extending part exceeding one end of the display panel, and the surface of one side of the flexible circuit board is in contact with the extending part. The flexible circuit board is in contact with the extension part, liquid on one side of the extension part can be blocked, and therefore the liquid is effectively prevented from intruding into a binding bonding pad between the display panel and the flexible circuit board, and meanwhile due to the fact that the extension part exceeds one end of the display panel, the liquid can be effectively prevented from entering the binding bonding pad. In this way, the distance between the binding bonding pad and the contact part between the flexible circuit board and the extension part is increased, so that the time for cleaning the accumulated liquid can be won for a user.

Description

Technical Field

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

[0002] In related technologies, the edge of the display panel is typically flush with the edge of the support below it, and the flexible circuit board passes through the edge of the display panel and is bonded to it. However, there is often a gap between the edge of the flexible circuit board and the edge of the display panel. When liquid (such as sweat) accumulates on one side of the display panel, the liquid can quickly penetrate through this gap into the bonding pads between the display panel and the flexible circuit board, causing corrosion to the bonding pads and affecting the subsequent use of the display panel. Utility Model Content

[0003] This application provides a display device to at least solve the problem in the related art that liquid on one side of the display panel can easily corrode the bonding pads.

[0004] On one hand, embodiments of this application provide a display device, which includes a support member, a display panel, and a flexible circuit board. The display panel is disposed on the support member; the flexible circuit board is electrically connected to the display panel; wherein the support member includes an extension extending beyond one end of the display panel, and one side surface of the flexible circuit board contacts the extension.

[0005] In some embodiments, the display device further includes a printed circuit board electrically connected to the flexible circuit board, the printed circuit board being disposed on the support member.

[0006] In some embodiments, the support member includes a support layer and a reinforcing layer. The reinforcing layer includes a first sub-extension extending beyond one end of the display panel, and the support layer includes a second sub-extension extending beyond one end of the display panel. The first sub-extension and the second sub-extension constitute the extension. The length of the second sub-extension is greater than the length of the first sub-extension. The flexible circuit board contacts the first sub-extension, and the printed circuit board is disposed on the second sub-extension.

[0007] In some embodiments, the first sub-extension is provided with a hydrophobic layer on the side near the printed circuit board.

[0008] In some embodiments, an arcuate transition surface is provided between the surface of the first sub-extension away from the second sub-extension and the side of the first sub-extension near the printed circuit board, the arcuate transition surface protruding toward the flexible circuit board.

[0009] In some embodiments, an integrated circuit is provided on one side of the display panel; the display device further includes a protective layer covering the integrated circuit and the flexible circuit board.

[0010] In some embodiments, along the width direction of the flexible circuit board, the portion of the protective layer extending beyond the side of the flexible circuit board contacts the extension.

[0011] In some embodiments, the portion of the protective layer extending beyond the side of the flexible circuit board closes the gap between the flexible circuit board, the extension, and the display panel.

[0012] In some embodiments, the extension is provided with an adhesive member, which is bonded to the flexible circuit board.

[0013] In some embodiments, the display panel includes a main body and a bent portion. The bent portion includes a connecting end and a free end disposed opposite to each other. The connecting end is connected to the main body, and the free end is located on the back side of the main body. The main body and the free end are disposed on opposite sides of the support member.

[0014] In the display device provided in this application embodiment, the contact between the flexible circuit board and the extension portion can form a barrier against liquid on one side of the extension portion, thereby effectively preventing liquid from intruding into the bonding pads between the display panel and the flexible circuit board. Furthermore, since the extension portion extends beyond one end of the display panel, this also lengthens the distance between the bonding pads and the contact area between the flexible circuit board and the extension portion, thus extending the time it takes for liquid to intrude into the bonding pads, and giving the user time to clean up the accumulated liquid. Moreover, after the liquid overcomes the first barrier formed by the contact between the flexible circuit board and the extension portion, it needs to accumulate further and reach a height equal to the thickness of the display panel before it can continue to intrude into the bonding pads, further giving the user time to clean up the accumulated liquid and preventing the bonding pads from being easily corroded by the liquid. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a cross-sectional view of a display device in related technologies;

[0017] Figure 2 yes Figure 1 Enlarged view of region A in the middle;

[0018] Figure 3 This is a cross-sectional structural diagram of a display device provided in some embodiments of this application;

[0019] Figure 4 This is a cross-sectional structural diagram of a display device provided in some other embodiments of this application;

[0020] Figure 5 This is a cross-sectional structural diagram of a display device provided in some embodiments of this application;

[0021] Figure 6 This is a cross-sectional structural diagram of a display device provided in some embodiments of this application;

[0022] Figure 7 This is a top view structural diagram of a display device provided in some embodiments of this application. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings. The described technical solutions are for illustrative purposes only and should not be construed as limiting the scope of protection of this application.

[0024] In the description of this application, it should be understood that the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different technical features. The terms "multiple" and similar words mean two or more, unless otherwise expressly defined.

[0025] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0026] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0027] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application.

[0028] The various embodiments of this application are similar, and features from different embodiments and / or different examples can be combined with each other.

[0029] In related technologies, such as Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the structure of a display device in related technologies. Figure 2 for Figure 1 An enlarged view of area A in the diagram. In this display device, the edge of the display panel 1 is flush with the edge of the support member 2, and the distance between the bonding pad 6 formed by the bonding of the flexible circuit board 3 and the display panel 1 and the edge of the display panel 1 is relatively small. On the other hand, the display panel 1 and the support member 2 are spaced together on the circuit board 4, which easily forms a liquid channel 5. When a large amount of liquid (such as sweat) accumulates in the liquid channel 5, the liquid can easily enter the gap between the flexible circuit board 3 and the display panel 1, and penetrate into the bonding pad of the flexible circuit board 3 and the display panel 1 through this gap, causing the bonding pad to be eroded, thereby affecting the normal use of the display device.

[0030] Based on this, some embodiments of this application provide a display device, such as... Figures 3 to 7 As shown, the display device 100 includes a display panel 10, a support member 20, and a flexible circuit board 30. The display panel 10 is disposed on the support member 20, which provides support for the display panel 10 to improve its stability. The flexible circuit board 30 is electrically connected to the display panel 10, thereby enabling signal transmission between the flexible circuit board 30 and the display panel 10. For example, the flexible circuit board 30 is electrically connected to the display panel 10 via bonding pads.

[0031] The support member 20 includes an extension 201 that extends beyond one end of the display panel 10, and one side surface of the flexible circuit board 30 is in contact with the extension 201.

[0032] This design allows the contact between the flexible circuit board 30 and the extension 201 to create a barrier against liquid on one side of the extension 201, effectively preventing liquid from penetrating the bonding pads between the display panel 10 and the flexible circuit board 30. Furthermore, since the extension 201 extends beyond one end of the display panel 10, this also lengthens the distance between the bonding pads and the contact area between the flexible circuit board 30 and the extension 201, thus extending the time it takes for liquid to penetrate the bonding pads and giving the user more time to clean up any accumulated liquid. Moreover, after the liquid overcomes the first barrier formed by the contact between the flexible circuit board 30 and the extension 201, it needs to accumulate further and reach a height equal to the thickness of the display panel 10 before it can continue to penetrate the bonding pads. This further provides the user with more time to clean up the accumulated liquid and prevents the bonding pads from being easily corroded by the liquid.

[0033] On the other hand, the extension 201 of the support member 20 can also provide additional support for the flexible circuit board 30, reducing its deformation or shaking during use.

[0034] It is worth noting that when the extension 201 of the support member 20 extends beyond one end of the display panel 10, it means that the extension 201 extends beyond the end of the display panel 10 near the bonding pad. Furthermore, the interface between the other part of the support member 20 excluding the extension 201 and the extension 201 is coplanar with the end of the display panel 10 near the bonding pad.

[0035] In some examples, the display panel 10 can be secured to the support member 20 by an adhesive layer (e.g., adhesive), thereby ensuring that the support member 20 provides continuous and stable support for the display panel 10.

[0036] In some embodiments, please continue reading Figures 3 to 6 The display device 100 also includes a printed circuit board 40 electrically connected to the flexible circuit board 30, and the printed circuit board 40 is disposed on the support member 20. For example, the printed circuit board 40 is disposed on the extension 201.

[0037] With this configuration, the extension 201 of the support member 20 can effectively support the printed circuit board 40, thereby ensuring the structural stability of the display device 100. After the printed circuit board 40 is electrically connected to the flexible circuit board 30, the flexible circuit board 30 can be used for signal transmission between the printed circuit board 40 and the display panel 10, thereby ensuring the normal display of the display panel 10.

[0038] As an example, the printed circuit board 40, the flexible circuit board 30, and the bonding pads of the flexible circuit board 30 and the display panel 10 are all located on the same side of the support 20. This allows the two bonding ends on the same side of the flexible circuit board 30 to bond the printed circuit board 40 and the display panel 10 respectively, facilitating the implementation of the bonding step.

[0039] In some examples, the printed circuit board 40 can be fixed to the support 20 with adhesive or tape.

[0040] In some embodiments, such as Figures 4 to 6 As shown, the support member 20 includes a support layer 22 and a reinforcing layer 21 stacked together. The reinforcing layer 21 includes a first sub-extension 211 extending beyond one end of the display panel 10, and the support layer 22 includes a second sub-extension 221 extending beyond one end of the display panel 10. The first sub-extension 211 and the second sub-extension 221 constitute the aforementioned extension 201.

[0041] The length of the second sub-extension 221 is greater than the length of the first sub-extension 211, the flexible circuit board 30 is in contact with the first sub-extension 211, and the printed circuit board 40 is disposed on the second sub-extension 221.

[0042] In this case, the extension 201 has a stepped structure. The first sub-extension 211 is used to form contact with the flexible circuit board 30, and the second sub-extension 221 is used to arrange the printed circuit board 40. This can effectively ensure the stability of the support for the printed circuit board 40, while also reducing the installation height of the printed circuit board 40, thereby helping to reduce the thickness of the display device 100.

[0043] In some examples, the printed circuit board 40 is spaced apart from the first sub-extension 211, thus forming a liquid channel between them. Since the flexible circuit board 30 is in contact with the first sub-extension 211, it acts as a barrier to the liquid channel, effectively preventing liquid in the channel from easily intruding into the bonding pads between the display panel 10 and the flexible circuit board 30.

[0044] In some examples, the support layer 22 may include metallic materials such as aluminum, stainless steel, and titanium alloy. This not only ensures the support strength of the support layer 22, but also has advantages such as corrosion resistance and light weight, while also helping to ensure the heat dissipation performance of the display device 100.

[0045] In some examples, the material of the reinforcing layer 21 may be the same as or different from the material of the support layer 22. When the material of the reinforcing layer 21 differs from that of the support layer 22, the reinforcing layer 21 may be an organic material such as polyimide, polyester (e.g., polyethylene terephthalate), or glass fiber. This application does not impose such limitations on the embodiments.

[0046] In some examples, after the reinforcing layer 21 and the support layer 22 are each cut, they can be bonded together to form a support member 20, and then the support member 20 is bonded to the display panel 10. A gap of 0.05 mm to 0.3 mm can be left at some edges of the reinforcing layer 21 and the support layer 22, which facilitates subsequent edge clamping of the support member 20 to ensure the alignment accuracy of the support member 20 in subsequent steps.

[0047] In some embodiments, such as Figure 5 As shown, the first sub-extension 211 includes a first surface 2111, which is the side of the first sub-extension 211 near the printed circuit board 40, and the first surface 2111 is provided with a hydrophobic layer 2110.

[0048] This design prevents liquid from lingering on the first surface 2111 when the liquid is discharged from the liquid channel. This effectively prevents some liquid from easily spreading to the contact position between the flexible circuit board 30 and the first sub-extension 211 due to prolonged lingering on the first surface 2111, and thus avoiding adverse effects on the connection between the flexible circuit board 30 and the first sub-extension 211.

[0049] In some embodiments, such as Figures 4 to 6As shown, an adhesive is provided on the extension 201 (e.g., the first sub-extension 211), and the adhesive is bonded to the flexible circuit board 30.

[0050] This design serves two purposes. First, it creates a relative seal between the first sub-extension 211 and the flexible circuit board 30, effectively preventing liquid from the first sub-extension 211 from corroding the bonding pads through the connection between the first sub-extension 211 and the flexible circuit board 30. Second, it enhances the fixation of the flexible circuit board 30, reducing deformation or movement during use and preventing connection failure between the flexible circuit board 30 and the extension 201 due to mechanical stress, thereby improving waterproof reliability.

[0051] In some examples, the adhesive can be waterproof, which prevents liquid from accumulating in the liquid channels and adversely affecting the stability of the adhesive.

[0052] In some embodiments, such as Figure 6 As shown, the first sub-extension 211 includes a first surface 2111 and a second surface 2112. The first surface 2111 is the side of the first sub-extension 211 near the printed circuit board 40, and the second surface 2112 is the surface of the first sub-extension 211 facing away from the second sub-extension 221. An arc-shaped transition surface 2113 is provided between the second surface 2112 and the first surface 2111, and the arc-shaped transition surface 2113 protrudes towards the flexible circuit board 30. The two ends of the arc-shaped transition surface 2113 are connected to the first surface 2111 and the second surface 2112, respectively.

[0053] This design increases the contact area between the first sub-extension 211 and the flexible circuit board 30, thereby improving the bonding stability between them. It also prevents the first surface 2111 and the second surface 2112 from directly connecting and forming sharp corners, thus avoiding damage to the flexible circuit board 30 from such sharp corners.

[0054] In some examples, the arc transition surface 2113 is an arc surface, in which case the first sub-extension 211 can be obtained by chamfering.

[0055] In some examples, the adhesive can be disposed on the arcuate transition surface 2113 for bonding with the flexible circuit board 30. This helps to ensure the bonding stability between the first sub-extension 211 and the flexible circuit board 30.

[0056] In some embodiments, please continue reading Figures 4 to 6The display panel 10 includes a main body 11 and a bending part 12. The bending part 12 includes a connecting end 122 and a free end 121 disposed opposite to each other. The connecting end 122 is connected to the main body 11, and the free end 121 is located on the back side of the main body 11. The main body 11 and the free end 121 are disposed on opposite sides of the support member 20.

[0057] In this case, the bending portion 12 of the display panel 10 is bent so that its free end 121 is located on the back side of the main body 11. Then, by electrically connecting the flexible circuit board 30 to the display panel 10 and the printed circuit board 40, and fixing the printed circuit board 40 to the back side of the main body 11, the size of the display device 100 can be reduced.

[0058] In some embodiments, such as Figure 4 As shown, the display device 100 also includes a seal 60, which is disposed around the contact surface between the flexible circuit board 30 and the display panel 10.

[0059] As an example, the seal 60 is disposed around the bonding pads between the flexible circuit board 30 and the display panel 10, thereby providing effective waterproof protection for the bonding pads and preventing them from being corroded by liquids.

[0060] In some embodiments, please continue reading Figures 4 to 6 An integrated circuit 101 is provided on one side of the display panel 10. The display device 100 also includes a protective layer 50, which covers the integrated circuit 101 and the flexible circuit board 30. This arrangement allows the protective layer 50 to cover both the integrated circuit 101 and the flexible circuit board 30 simultaneously, thereby achieving protection for both the integrated circuit 101 and the flexible circuit board 30.

[0061] The protective layer 50 can be made of materials such as polyimide or polyester. When the protective layer 50 is made of polyimide tape, it has good high-temperature resistance, thus providing moisture and dust protection for the integrated circuit 101 and the flexible circuit board 30, as well as physical protection against impacts and scratches.

[0062] In some embodiments, such as Figure 7 As shown, along the width direction Y of the flexible circuit board 30, the portion of the protective layer 50 extending beyond the side of the flexible circuit board 30 contacts the extension portion 201.

[0063] It is worth noting that the display panel 10 has a certain thickness. After the flexible circuit board 30 is bonded to the display panel 10 and the flexible circuit board 30 is connected to the extension 201, a gap channel can easily form between the flexible circuit board 30, the display panel 10, and the extension 201. This gap channel can easily accumulate liquid and affect the bonding pads between the flexible circuit board 30 and the display panel 10. In this embodiment, by bonding the protective layer 50 to the extension 201, the gap channel can be blocked to a certain extent, thereby preventing the intrusion of foreign objects such as dust or liquid from adversely affecting the bonding pads.

[0064] Please continue reading. Figure 7 The length direction X of the flexible circuit board 30 is perpendicular to the width direction Y of the flexible circuit board 30. The two ends of the flexible circuit board 30 located in the length direction X are electrically connected to the display panel 10 and the printed circuit board 40, respectively.

[0065] In some embodiments, the portion of the protective layer 50 extending beyond the side of the flexible circuit board 30 closes the gap between the flexible circuit board 30, the extension 201, and the display panel 10.

[0066] This effectively blocks the gap channel, thus preventing the intrusion of foreign objects such as dust or liquids from adversely affecting the bonding pads.

[0067] As an example, the portion of the protective layer 50 extending beyond the side of the flexible circuit board 30 includes a first side portion 51 and a second side portion 52, both of which are located on the extension 201 and bonded to the extension 201.

[0068] When the extension 201 includes a first sub-extension 211 and a second sub-extension 221, both the first side portion 51 and the second side portion 52 are bonded to the first sub-extension 211.

[0069] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display device, characterized by comprising: include: Support components; A display panel is mounted on the support member; as well as The flexible circuit board is electrically connected to the display panel; The support member includes an extension that extends beyond one end of the display panel, and one side surface of the flexible circuit board is in contact with the extension.

2. The display device according to claim 1, wherein The display device further includes a printed circuit board electrically connected to the flexible circuit board, the printed circuit board being disposed on the support member.

3. The display device according to claim 2, wherein The support member includes a support layer and a reinforcing layer. The reinforcing layer includes a first sub-extension extending beyond one end of the display panel. The support layer includes a second sub-extension extending beyond one end of the display panel. The first sub-extension and the second sub-extension constitute the extension. The second sub-extension has a longer length than the first sub-extension, the flexible circuit board is in contact with the first sub-extension, and the printed circuit board is disposed on the second sub-extension.

4. The display device according to claim 3, wherein The first sub-extension has a hydrophobic layer on the side near the printed circuit board.

5. The display device according to claim 3, wherein An arc-shaped transition surface is provided between the surface of the first sub-extension away from the second sub-extension and the side of the first sub-extension near the printed circuit board, and the arc-shaped transition surface protrudes toward the flexible circuit board.

6. The display device according to any one of claims 1-5, characterized in that, An integrated circuit is provided on one side of the display panel; and The display device further includes a protective layer that covers the integrated circuit and the flexible circuit board.

7. The display device according to claim 6, wherein Along the width direction of the flexible circuit board, the portion of the protective layer extending beyond the side of the flexible circuit board contacts the extension portion.

8. The display device according to claim 7, wherein The portion of the protective layer extending beyond the side of the flexible circuit board seals the gap between the flexible circuit board, the extension, and the display panel.

9. The display device according to any one of claims 1 to 5, wherein The extension is provided with an adhesive component, which is bonded to the flexible circuit board.

10. The display device according to any one of claims 1 to 5, wherein The display panel includes a main body and a bending portion. The bending portion includes a connecting end and a free end disposed opposite to each other. The connecting end is connected to the main body, and the free end is located on the back side of the main body. The main body and the free end are disposed on opposite sides of the support member.

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