Display panel and electronic device

Abstract

The display panel and the electronic equipment provided by the embodiment of the present application, the display panel comprises a substrate layer, a first metal wiring layer located on one side of the substrate layer, and a surrounding structure located on the side of the first metal wiring layer away from the substrate layer, the surrounding structure surrounds at least part of the opening area, and the surrounding structure comprises a second metal wiring layer and a supporting unit which are stacked. The display panel and the electronic equipment provided by the present application add the second metal wiring layer on the basis of the original first metal wiring layer in the transition area, and set the supporting unit on the second metal wiring layer, and the second metal wiring layer and the supporting unit jointly form the surrounding structure. In this way, the overall height of the surrounding structure is improved, the blocking effect of the surrounding structure on the transparent optical adhesive is improved, and the risk of excessive overflow of the transparent optical adhesive is reduced.

Description

Technical Field

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

[0002] To increase the effective display area of ​​a screen, some electronic devices incorporate openings in the screen to house components such as cameras and light sensors at positions corresponding to these openings below the screen. Simultaneously, transparent optical adhesive is applied to these openings to improve light transmission. However, because the openings interrupt the straight-line extension of signal traces, the traces must bypass the opening, creating an asymmetrical structure around it. This asymmetrical structure affects the flow of the transparent optical adhesive, making it difficult to accurately determine the amount of adhesive applied during dispensing. This can lead to insufficient or excessive application of the adhesive, negatively impacting display quality. Summary of the Invention

[0003] To overcome the technical problems mentioned in the background, embodiments of this application provide a display panel, including an opening area, an effective display area disposed around the opening area, and a transition area located between the effective display area and the opening area; the transition area includes:

[0004] basal layer;

[0005] A first metal trace layer located on one side of the substrate layer;

[0006] A surrounding structure located on the side of the first metal trace layer away from the substrate layer, the surrounding structure surrounding at least a portion of the opening area, the surrounding structure including a second metal trace layer and a support unit stacked together.

[0007] Thus, by adding a second metal trace layer to the existing first metal trace layer in the transition zone, and placing the support unit on the second metal trace layer, the second metal trace layer and the support unit together form a surrounding structure. This increases the overall height of the surrounding structure, enhances its blocking effect on the transparent optical adhesive, and reduces the risk of excessive overflow of the transparent optical adhesive.

[0008] In one possible implementation, the first metal trace layer includes a plurality of first traces and an insulating layer covering the first traces, and the surrounding structure is disposed on the side of the insulating layer away from the substrate layer.

[0009] Preferably, the insulating layer further includes a planarization layer disposed on the side of the insulating layer away from the substrate layer.

[0010] Thus, the planarization layer can offset the height difference between the first metal trace layer and the second metal trace layer, allowing the second metal trace layer to maintain a uniform height relative to the substrate layer. This ensures that the surrounding structure formed by the second metal trace layer and the support unit has a roughly uniform height, thereby providing roughly the same blocking effect on the transparent optical adhesive extending in all directions.

[0011] In one possible implementation, the surrounding structure includes at least one break region, at which the surrounding structure is broken, and the break region connects the opening region and the transition region.

[0012] Thus, the surrounding structure is disconnected at the disconnected area, and the disconnected area is not obstructed by the second metal trace layer and is in a light-transmitting state. Therefore, during the dispensing process, the overflow state of the dispensing area can be observed from the back of the display panel, thereby accurately determining the amount of dispensing.

[0013] In one possible implementation, the surrounding structure includes a plurality of disconnected regions, which are evenly distributed along the surrounding structure. Thus, when observing the adhesive overflow state from the back of the display panel, the adhesive overflow state in different directions of the surrounding structure can be observed through the plurality of disconnected regions, thereby more accurately determining the amount of adhesive applied.

[0014] In one possible implementation, the display panel includes at least two rings of the surrounding structure, with the outer ring surrounding the inner ring, and the break areas of adjacent rings being staggered; preferably, the multiple rings of the surrounding structure are concentrically arranged.

[0015] Thus, the at least two layers of the surrounding structure can more effectively prevent the spread of the transparent optical adhesive overflowing during the dispensing process to the effective display area, thereby improving the fault tolerance of the dispensing process.

[0016] In one possible implementation, the shape of the orthographic projection of the surrounding structure onto the substrate corresponds to the outer contour of the opening area. This ensures that the distance from the opening area to the surrounding structure is approximately equal at all locations, thereby guaranteeing that the surrounding structure provides approximately the same blocking effect on the transparent optical adhesive at each location.

[0017] In one possible implementation, the second metal trace layer is located on the side of the first metal trace layer away from the substrate layer, and the support unit is located on the side of the second metal trace layer away from the first metal trace layer.

[0018] In one possible implementation, the display panel further includes a transparent adhesive layer disposed in the opening area, and the surrounding structure is used to prevent the transparent adhesive layer from extending from the opening area to the effective display area.

[0019] In one possible implementation, the first metal trace layer includes a plurality of metal traces, at least a portion of which extend from one side of the transition region around the opening region to the other side of the transition region.

[0020] Another object of this application is to provide an electronic device, which includes the display panel provided in this application. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of a display panel with an opening area;

[0023] Figure 2 A schematic diagram of the winding structure in the open area;

[0024] Figure 3 One of the partial structural schematic diagrams of the display panel provided in the embodiments of this application;

[0025] Figure 4 One of the schematic diagrams of the surrounding structure provided in the embodiments of this application;

[0026] Figure 5 A second partial structural schematic diagram of the display panel provided in an embodiment of this application;

[0027] Figure 6 A second schematic diagram of the surrounding structure provided in the embodiments of this application;

[0028] Figure 7 This is the third schematic diagram of the surrounding structure provided in the embodiments of this application;

[0029] Figure 8 Fourth schematic diagram of the surrounding structure provided in the embodiments of this application;

[0030] Figure 9 Fifth schematic diagram of the surrounding structure provided in the embodiments of this application;

[0031] Figure 10 This is the sixth schematic diagram of the surrounding structure provided in the embodiments of this application. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] It should be noted that, where there is no conflict, different features in the embodiments of this application can be combined with each other.

[0037] Please see Figure 1 In some electronic devices, display panels with through-holes are used. Such display panels may include an effective display area 10, an opening area 20, and a transition area 30. The effective display area 10 surrounds the opening area 20, and the transition area 30 is located between the effective display area 10 and the opening area 20. Due to the presence of the opening area 20, the straight-line extension path of a portion of the signal lines (e.g., scan lines or data lines) in the effective display area 10 is interrupted by the opening area 20, and these signal lines need to be routed along the edge of the opening area 20 to the other side of the opening area 20.

[0038] Please refer to Figure 2A portion of the signal line extending from the effective display area 10 to the opening area 20 has a straight first portion 111 and a second portion 112 that winds around the opening area 20. Multiple second portions 112 of the signal lines are arranged around the opening area 20, forming an asymmetrical structure. For example, Figure 2 The winding structures in regions A and B shown are asymmetrical.

[0039] When applying transparent optical adhesive to the opening area 20, the asymmetrical structure around the opening area 20 has different flow-blocking effects on the transparent optical adhesive during the dispensing process. This makes it difficult to accurately determine the amount of transparent optical adhesive overflow during the dispensing process, which can easily lead to problems such as insufficient amount of transparent optical adhesive or transparent optical adhesive overflow, thus affecting the final display effect.

[0040] In view of this, this application provides a solution to improve the problem of glue overflow during the dispensing process in the opening area 20. The solution provided by this application is described in detail below.

[0041] This application provides a display panel; please refer again to... Figure 1 The display panel includes... Figure 1 The effective display area 10, the opening area 20, and the transition area 30 are similar in structure as shown. The effective display area 10 surrounds the opening area 20, and the transition area 30 is located between the effective display area 10 and the opening area 20.

[0042] The display panel can be composed of multiple stacked film layers or structures, for example... Figure 3 As shown, the portion of the display panel located in the transition area 30 may include a base layer 100, a first metal trace layer 110, and a surrounding structure 130.

[0043] The first metal trace layer 110 is located on one side of the substrate layer 100. In one possible implementation, the first metal trace layer 110 includes a plurality of first traces 113 and an insulating layer 114 covering the first traces 113, the insulating layer 114 being used to prevent the first traces 113 from making electrical contact with other film layers. At least a portion of the first traces 113 extend from one side of the transition region 30 around the opening region 20 to the other side of the transition region 30.

[0044] The surrounding structure 130 is located on the side of the first metal trace layer 110 away from the substrate layer 100, combined with Figure 4As shown, the surrounding structure 130 surrounds at least a portion of the opening area 20. The surrounding structure 130 includes a second metal trace layer 131 and a support unit 132 stacked together. The support unit 132 may be formed of organic adhesive and serves as a spacer (SPC) for the display panel. Specifically, the second metal trace layer 131 is located on the side of the first metal trace layer 114 away from the substrate layer 100, and the support unit 132 is located on the side of the second metal trace layer 131 away from the first metal trace layer 110.

[0045] In some possible implementations of this application, the first metal trace layer 110 may include multiple sub-layers, and the first trace 113 may be located on different sub-layers. For example, it may include an M1 metal layer and an M2 metal layer. The M1 metal layer may include signal lines for transmitting a scan signal Scan and a control signal EM, and the M2 metal layer may include signal lines for transmitting a voltage reset signal Vref. The second metal trace layer 131 may also include an M3 metal layer or an M4 metal layer. The M3 metal layer may include signal lines for transmitting a power supply voltage signal Vdd and a data voltage signal Vdata, and the M4 metal layer may include signal lines for transmitting a data signal Data. Typically, the M3 metal layer and the M4 metal layer are located on the side of the M1 metal layer and the M2 metal layer away from the substrate layer 100.

[0046] Optionally, in this embodiment, the shape of the orthographic projection of the surrounding structure 130 onto the substrate layer 100 corresponds to the outer contour of the opening region 20. For example, if the opening region 20 can be circular, the surrounding structure 130 can be arranged in a ring around the opening region 20. In this way, the distance from each point of the opening region 20 to the surrounding structure 130 can be approximately equal, thereby ensuring that the blocking effect of the surrounding structure 130 on the transparent optical adhesive at each location is approximately the same.

[0047] Further, please refer to Figure 5 The display panel may further include a transparent adhesive layer 140 disposed in the opening area 20. The transparent adhesive layer 140 may be formed by dispensing transparent optical adhesive. Specifically, in some possible implementations, in order to ensure the light transmittance of the opening area 20, the first metal trace layer 110 and the second metal trace layer 131 are not disposed in the opening area 20, and the opening area 20 only includes the substrate layer 100. During the dispensing process, the transparent optical adhesive is mainly disposed on the substrate layer 100 of the opening area and spreads from the center of the opening area 20 outwards. The surrounding structure 130 is used to prevent the transparent optical adhesive from extending from the opening area 20 to the effective display area 10.

[0048] Based on the above design, in the display panel provided in this embodiment, a second metal trace layer 131 is added to the existing first metal trace layer 110 in the transition area 30, and the support unit 132 is disposed on the second metal trace layer 131. The second metal trace layer 131 and the support unit 132 together form the surrounding structure 130. This increases the overall height of the surrounding structure 130, thereby strengthening its blocking effect on the transparent optical adhesive and effectively reducing the risk of excessive overflow of transparent optical adhesive into the effective display area 10 during the dispensing process.

[0049] For some possible implementations, please refer to Figure 6 The surrounding structure 130 may include at least one break area, at which the surrounding structure 130 is broken, and the break area connects the opening area 10 and the transition area 30. Thus, since the surrounding structure 130 is broken at the break area, the break area is not obstructed by the second metal trace layer 131 and is in a light-transmitting state. Therefore, during the dispensing process, the excess adhesive at the break area can be observed from the back of the display panel, thereby accurately determining the amount of adhesive dispensed.

[0050] For some possible implementations, please refer to Figure 7 The surrounding structure 130 may include a plurality of disconnected regions, which are evenly distributed along the surrounding structure 130. Thus, when observing the adhesive overflow state from the back of the display panel, the adhesive overflow state in different directions of the surrounding structure can be observed through the multiple disconnected regions, thereby more accurately determining the amount of adhesive applied.

[0051] For some possible implementations, please refer to Figure 8 The display panel includes at least two concentric rings of the surrounding structure 130, with the outer ring 130 surrounding the inner ring 130. This arrangement of at least two rings of the surrounding structure 130 more effectively prevents the spread of transparent optical adhesive overflowing during the dispensing process to the effective display area 10, thereby improving the tolerance of the dispensing process. Furthermore, multiple rings of the surrounding structure 130 can be concentrically arranged.

[0052] Further, please refer to Figure 9When the display panel includes at least two rings of the surrounding structure 130 and each of the surrounding structure 130 has a break area, the break areas of two adjacent surrounding structures 130 are staggered. In this way, by staggering the break areas of two adjacent surrounding structures 130, transparent optical adhesive overflowing during the dispensing process can be prevented from directly passing through the two break areas and overflowing into the effective display area 10.

[0053] Further, please refer to Figure 10 In the case where the display panel includes at least two rings of the surrounding structure 130 and each of the surrounding structure 130 includes a plurality of the broken areas, the plurality of broken areas between different surrounding structures 130 can be staggered from each other.

[0054] In some possible implementations, the insulating layer 114 further includes a planarization layer disposed on the side of the insulating layer 114 away from the substrate layer, and the surrounding structure 130 is located on the planarization layer. The planarization layer can offset the height differences between the first metal trace layer 110 and the second metal trace layer 131, allowing the second metal trace layer 131 to maintain a uniform height relative to the substrate layer 100. This ensures that the surrounding structure 130 formed by the second metal trace layer 131 and the support unit 132 has a substantially uniform height, thus providing approximately the same blocking effect on the transparent optical adhesive extending in all directions.

[0055] Based on the same inventive concept, this application also provides an electronic device, which includes the display panel provided in this application embodiment. The electronic device may include a mobile phone, tablet computer, laptop computer, smart wearable device, etc.

[0056] In summary, the display panel and electronic device provided in this application, by adding a second metal trace layer to the existing first metal trace layer in the transition area and placing the support unit on the second metal trace layer, form the surrounding structure together with the second metal trace layer and the support unit. This increases the overall height of the surrounding structure, thereby strengthening its blocking effect on the transparent optical adhesive and effectively reducing the risk of excessive overflow of transparent optical adhesive into the effective display area during the dispensing process, thus improving the display effect of the display panel.

[0057] In addition, a break area can be set on the surrounding structure, so that the overflow state of the transparent optical adhesive can be clearly observed on the back of the display panel through the break area, thereby accurately controlling the amount of adhesive applied.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A display panel, characterized in that, It includes an opening area, an effective display area surrounding the opening area, and a transition area located between the effective display area and the opening area; the transition area includes: basal layer; A first metal trace layer located on one side of the substrate layer; the first metal trace layer includes a plurality of first traces and an insulating layer covering the first traces, at least a portion of the first traces extending from one side of the transition region around the opening region to the other side of the transition region; A surrounding structure located on the side of the first metal trace layer away from the substrate layer, the surrounding structure being disposed on the side of the insulating layer away from the substrate layer; the surrounding structure surrounding at least a portion of the opening area, the surrounding structure including a second metal trace layer and a support unit stacked together; The insulating layer further includes a planarization layer; The planarization layer is located on the side of the first metal trace layer away from the substrate layer; The second metal trace layer is located on the side of the planarization layer away from the substrate layer, and the second metal trace layer is located on the side of the first metal trace layer away from the substrate layer; The support unit is located on the side of the second metal trace layer away from the first metal trace layer; The surrounding structure overlaps with at least a portion of the first trace.

2. The display panel according to claim 1, characterized in that, The surrounding structure includes at least one break region, at which the surrounding structure is broken, and the break region connects the opening region and the transition region.

3. The display panel according to claim 2, characterized in that, The surrounding structure includes a plurality of disconnected regions, which are distributed at equal intervals along the surrounding structure.

4. The display panel according to claim 2 or 3, characterized in that, The display panel includes at least two rings of the surrounding structure, with the outer ring surrounding the inner ring, and the disconnected areas of adjacent rings being staggered.

5. The display panel according to claim 4, characterized in that, The multiple rings of the surrounding structure are arranged concentrically.

6. The display panel according to claim 1, characterized in that, The shape of the orthographic projection of the surrounding structure onto the base layer corresponds to the outer contour of the opening area.

7. The display panel according to claim 1, characterized in that, The display panel also includes a transparent adhesive layer disposed in the opening area, and the surrounding structure is used to prevent the transparent adhesive layer from extending from the opening area to the effective display area.

8. An electronic device, characterized in that, Includes the display panel as described in any one of claims 1-7.

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