CN115360221A

CN115360221A - Display panel and electronic device

Info

Publication number: CN115360221A
Application number: CN202210965486.7A
Authority: CN
Inventors: 谢正芳
Original assignee: Kunshan Govisionox Optoelectronics Co Ltd
Current assignee: Kunshan Govisionox Optoelectronics Co Ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2022-11-18

Abstract

The embodiment of the application provides a display panel and electronic equipment, display panel includes the stratum basale, is located the first metal routing layer of stratum basale one side and is located the first metal routing layer and keep away from the structure that encircles of stratum basale one side, encircles the structure and centers on at least partial open area, encircles second metal routing layer and the support element that the structure includes range upon range of setting. The application provides a display panel and electronic equipment through add the second metal routing layer on the basis of the original first metal routing layer in transition zone to set up the support element on second metal routing layer, form the structure of encircleing jointly by second metal routing layer and support element. Therefore, the overall height of the surrounding structure is increased, the blocking effect of the surrounding structure on the transparent optical cement is improved, and the risk of excessive overflow of the transparent optical cement is reduced.

Description

Display panel and electronic device

Technical Field

The application relates to the technical field of display equipment, in particular to a display panel and electronic equipment.

Background

In order to increase the ratio of the effective display area of the screen, in some electronic devices, an opening area is provided in the screen, so that a camera, a light sensor and other devices are arranged below the screen at a position corresponding to the opening area. Meanwhile, in order to improve the light transmission effect of the opening region, a transparent optical adhesive needs to be disposed at the opening region. However, since the opening area cuts off the linear extending path of the signal trace, the signal trace needs to bypass the opening area from the periphery of the opening area, and the winding portion forms an asymmetric structure around the opening area.

Disclosure of Invention

In order to overcome the technical problems mentioned in the above technical background, embodiments of the present application provide a display panel including an opening area, an effective display area disposed around the opening area, and a transition area between the effective display area and the opening area; the transition zone comprises:

a base layer;

the first metal routing layer is positioned on one side of the substrate layer;

and the surrounding structure is positioned on one side of the first metal routing layer, which is far away from the substrate layer, surrounds at least part of the opening area, and comprises a second metal routing layer and a supporting unit which are arranged in a laminated mode.

Therefore, the second metal routing layer is additionally arranged on the basis of the original first metal routing layer in the transition area, the supporting unit is arranged on the second metal routing layer, and the second metal routing layer and the supporting unit jointly form a surrounding structure. Therefore, the overall height of the surrounding structure is increased, the blocking effect of the surrounding structure on the transparent optical cement is improved, and the risk of excessive overflow of the transparent optical cement is reduced.

In a possible implementation manner, the first metal routing layer includes a plurality of first routing lines and an insulating layer covering the first routing lines, and the surrounding structure is disposed on a side of the insulating layer away from the base layer;

preferably, the insulating layer further comprises a planarization layer disposed on a side of the insulating layer away from the base layer.

In this way, the difference in height between the first metal routing layer and the second metal routing layer can be offset by the planarization layer, so that the second metal routing layer can be maintained at a uniform height with respect to the substrate layer, thereby ensuring that the surrounding structure formed by the second metal routing layer and the supporting unit has a substantially uniform height, and the blocking effect on the transparent optical adhesive extending in each direction is substantially the same.

In a possible implementation, the surrounding structure comprises at least one break-off area, at which the surrounding structure is broken off, the break-off area connecting the opening area and the transition area.

Therefore, the surrounding structure is disconnected at the disconnected region, the disconnected region is not shielded by the second metal routing layer and is in a light-transmitting state, and therefore in the dispensing process, the glue overflowing state at the disconnected region can be observed from the back of the display panel, and the dispensing amount can be accurately determined.

In a possible implementation, the surrounding structure includes a plurality of the disconnected regions, and the disconnected regions are distributed at equal intervals along the surrounding structure. Therefore, when the glue overflowing state is observed from the back of the display panel, the glue overflowing states of the surrounding structure in different directions can be observed through the plurality of the breaking areas, and the glue dispensing amount can be determined more accurately.

In a possible implementation manner, the display panel includes at least two circles of the surrounding structures, the surrounding structure located at the outer side is arranged around the surrounding structure located at the inner side, and the broken regions of two adjacent surrounding structures are mutually staggered; preferably, a plurality of said turns of the surrounding structure are arranged concentrically.

Therefore, the transparent optical adhesive overflowing in the dispensing process can be more effectively prevented from spreading to the effective display area through the surrounding structures of at least two layers, and the fault tolerance rate of the dispensing process is improved.

In one possible implementation, the shape of the orthographic projection of the surrounding structure on the substrate layer corresponds to the outer contour of the opening area. In this way, it can be ensured that the distances from the opening area to the surrounding structure are approximately equal, so as to ensure that the blocking effect of the surrounding structure on the transparent optical cement at each position is approximately equal.

In a possible implementation manner, the second metal routing layer is located on a side of the first metal routing layer away from the substrate layer, and the supporting unit is located on a side of the second metal routing layer away from the first metal routing layer.

In a possible implementation manner, the display panel further includes a transparent adhesive layer disposed in the opening area, and the surrounding structure is configured to block the transparent adhesive layer from extending from the opening area to the effective display area.

In one possible implementation manner, the first metal routing layer includes a plurality of metal routings, and at least a portion of the metal routings extend from one side of the transition area to the other side of the transition area around the opening area.

Another object of the present application is to provide an electronic device, which includes the display panel provided in the present application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic view of a display panel having an open area;

FIG. 2 is a schematic view of a winding structure in an open area;

fig. 3 is a schematic partial structure diagram of a display panel according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a surround structure according to an embodiment of the present disclosure;

fig. 5 is a second schematic view illustrating a partial structure of a display panel according to an embodiment of the present disclosure;

fig. 6 is a second schematic diagram of a surround structure according to an embodiment of the present application;

fig. 7 is a third schematic view of a surrounding structure according to an embodiment of the present application;

FIG. 8 is a fourth schematic diagram of a surround structure according to an embodiment of the present application;

FIG. 9 is a fifth schematic view of a surround structure according to an embodiment of the present application;

fig. 10 is a sixth schematic view of a surround structure according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like refer to orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, are only used for convenience of description and simplification of description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

It should be noted that, in case of conflict, different features in the embodiments of the present application may be combined with each other.

Referring to fig. 1, in some electronic devices, a display panel with through holes is used, and the display panel may include an active display area 10, an opening area 20, and a transition area 30. The active display area 10 surrounds the open area 20, and the transition area 30 is located between the active display area 10 and the open area 20. Due to the existence of the opening area 20, a part of the signal lines (e.g., scan lines or data lines) in the effective display area 10, which need to be routed to the other side of the opening area 20 along the edge of the opening area 20, is intercepted by the opening area 20.

Referring to fig. 2, a portion of the signal line extending from the active display area 10 to the opening area 20 has a first portion 111 extending linearly and a second portion 112 wrapping around the opening area 20. The second portions 112 of the plurality of signal lines are arranged around the opening area 20 to form an asymmetric structure. For example, the winding structure in the region a and the region B shown in fig. 2 is asymmetric.

When the transparent optical cement is disposed in the opening area 20, the asymmetric structures around the opening area 20 have different blocking effects on the flow of the transparent optical cement during the dispensing process, which makes it difficult to accurately determine the glue overflow amount of the transparent optical cement during the dispensing process, and further makes it easy to cause the problems of insufficient set amount of the transparent optical cement or overflow of the transparent optical cement, thereby affecting the final display effect.

In view of this, the embodiment of the present application provides a scheme capable of improving the problem of glue overflow in the process of dispensing the glue in the opening area 20, and the scheme provided by the embodiment of the present application is described in detail below.

Referring to fig. 1 again, the display panel includes an effective display area 10, an opening area 20 and a transition area 30, which are similar to the structure shown in fig. 1, wherein 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.

The display panel may be composed of a plurality of stacked film layers or structures, for example, as shown in fig. 3, and a portion of the display panel located in the transition region 30 may include a substrate layer 100, a first metal routing layer 110, and a surrounding structure 130.

The first metal routing layer 110 is located on one side of the substrate layer 100. In a possible implementation manner, the first metal routing layer 110 includes a plurality of first routing lines 113 and an insulating layer 114 covering the first routing lines 113, and the insulating layer 114 is used for preventing the first routing lines 113 from being electrically contacted with other film layers. At least a portion of the first trace 113 extends from one side of the transition area 30 around the open area 20 to the other side of the transition area 30.

The surrounding structure 130 is located on a side of the first metal routing layer 110 away from the substrate layer 100, as shown in fig. 4, the surrounding structure 130 surrounds at least a portion of the opening area 20, and the surrounding structure 130 includes a second metal routing layer 131 and a supporting unit 132 that are stacked. The supporting unit 132 may be formed of an organic glue as supporting Separation Pillars (SPC) of the display panel. Specifically, the second metal routing layer 131 is located on a side of the first metal routing layer 114 away from the substrate layer 100, and the supporting unit 132 is located on a side of the second metal routing layer 131 away from the first metal routing layer 110.

In this embodiment of the application, in some possible implementation manners, the first metal routing layer 110 may include a plurality of sub-layers, and the first routing 113 may be located on different sub-layers. For example, an M1 metal layer and an M2 metal layer may be included, the M1 metal layer may include signal lines for transmitting the Scan signal Scan and the control signal EM, and the M2 metal layer may include signal lines for transmitting the voltage reset signal Vref. The second metal wiring layer 131 may further include an M3 metal layer or an M4 metal layer, the M3 metal layer may include signal lines for transmitting the power voltage signal Vdd and the Data voltage signal Vdata, and the M4 metal layer may include signal lines for transmitting the Data signal Data. Typically, the M3 metal layer and the M4 metal layer are located on a side of the M1 metal layer and the M2 metal layer away from the substrate layer 100.

Optionally, in the embodiment of the present application, the shape of the orthographic projection of the surrounding structure 130 on the substrate layer 100 corresponds to the outer contour of the opening area 20. For example, if the open area 20 can be circular in shape, the surround 130 can be annular around the open area 20. In this way, it can be ensured that distances from the surrounding structure 130 to the opening area 20 are substantially equal, so as to ensure that the blocking effect of the surrounding structure 130 on the transparent optical cement at various positions is substantially the same.

Further, referring to fig. 5, the display panel may further include a transparent adhesive layer 140 disposed in the opening area 20, and the transparent adhesive layer 140 may be formed by a transparent optical adhesive through a dispensing process. Specifically, in some possible implementations, in order to ensure the light transmittance of the opening area 20, the first metal routing layer 110 and the second metal routing layer 131 are not disposed in the opening area 20, and the opening area 20 includes only the substrate layer 100. In the dispensing process, the transparent optical adhesive is mainly disposed on the substrate layer 100 in the opening area and will spread from the central position of the opening area 20 to the periphery, and the surrounding structure 130 is used to block the transparent optical adhesive from extending from the opening area 20 to the active display area 10.

Based on the above design, in the display panel provided in the embodiment of the present application, the second metal routing layer 131 is added on the first metal routing layer 110 in the transition area 30, and the supporting unit 132 is disposed on the second metal routing layer 131, so that the second metal routing layer 131 and the supporting unit 132 jointly form the surrounding structure 130. Therefore, the overall height of the surrounding structure 130 can be increased, so that the blocking effect of the surrounding structure 130 on the transparent optical cement can be enhanced, and the risk that the transparent optical cement overflows to the effective display area 10 excessively in the dispensing process can be effectively reduced.

In some possible implementations, referring to fig. 6, the surrounding structure 130 may include at least one break area, where the surrounding structure 130 is broken, and the break area connects the opening area 10 and the transition area 30. In this way, the surrounding structure 130 is disconnected at the disconnected region, and the disconnected region is in a transparent state without being shielded by the second metal routing layer 131, so that in the dispensing process, the glue overflowing state at the disconnected region can be observed from the back of the display panel, thereby accurately determining the dispensing amount.

In some possible implementations, referring to fig. 7, the surrounding structure 130 may include a plurality of the disconnected regions, and the disconnected regions are distributed at equal intervals along the surrounding structure 130. Therefore, when the glue overflowing state is observed from the back of the display panel, the glue overflowing states of the surrounding structure in different directions can be observed through the plurality of the breaking areas, and the glue dispensing amount can be determined more accurately.

In some possible implementations, referring to fig. 8, the display panel includes at least two circles of the surrounding structure 130, and the surrounding structure 130 located at the outer side is disposed around the surrounding structure 130 located at the inner side. Therefore, the surrounding structure 130 can more effectively prevent the transparent optical adhesive overflowing during the dispensing process from spreading to the effective display area 10, thereby improving the fault tolerance of the dispensing process. Further, a plurality of turns of the surround 130 may be concentrically arranged.

Further, referring to fig. 9, when the display panel includes at least two circles of the surrounding structures 130 and the surrounding structures 130 have broken regions, the broken regions of two adjacent surrounding structures 130 are staggered. In this way, by staggering the broken regions of two adjacent surrounding structures 130, the transparent optical adhesive overflowing in the dispensing process can be prevented from directly passing through the two broken regions and overflowing to the effective display area 10.

Further, referring to fig. 10, in a case that the display panel includes at least two circles of the surrounding structures 130 and each of the surrounding structures 130 includes a plurality of the disconnected regions, the disconnected regions between different surrounding structures 130 may be staggered from each other.

In some possible implementations, the insulating layer 114 further includes a planarization layer disposed on a side of the insulating layer 114 away from the base layer, and the surrounding structure 130 is located on the planarization layer. The difference in height between the first metal routing layer 110 and the second metal routing layer 131 can be offset by the planarization layer, so that the second metal routing layer 131 can be maintained at a uniform height with respect to the substrate layer 100, and the surrounding structure 130 formed by the second metal routing layer 131 and the supporting unit 132 has a substantially uniform height, so that the blocking effect on the transparent optical adhesive extending in all directions is substantially the same.

Based on the same inventive concept, the embodiment of the application further provides an electronic device, and the electronic device comprises the display panel provided by the embodiment of the application. The electronic equipment can comprise a mobile phone, a tablet computer, a notebook computer, intelligent wearable equipment and the like.

To sum up, display panel and electronic equipment that this application provided, through the transition zone is original add on the basis of first metal routing layer the second metal routing layer, and will the support element sets up on the second metal routing layer, by the second metal routing layer with the support element forms jointly encircle the structure. So, can improve surround the whole height of structure to can strengthen surround the effect of blockking of structure to transparent optical cement, can effectively reduce to glue the in-process transparent optical cement at the point and excessively spill over to the risk in effective display area, and then promote display panel's display effect.

In addition, a broken area can be arranged on the surrounding structure, so that the overflowing state of the transparent optical cement can be clearly observed through the broken area on the back surface of the display panel, and the glue dispensing amount can be accurately controlled.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A display panel characterized by comprising an opening area, an effective display area provided around the opening area, and a transition area between the effective display area and the opening area; the transition zone comprises:

a base layer;

the first metal routing layer is positioned on one side of the substrate layer;

and the surrounding structure is positioned on one side of the first metal routing layer, which is far away from the substrate layer, surrounds at least part of the opening area, and comprises a second metal routing layer and a supporting unit which are arranged in a laminated manner.

2. The display panel according to claim 1, wherein the first metal routing layer comprises a plurality of first routing lines and an insulating layer covering the first routing lines, and the surrounding structure is disposed on a side of the insulating layer away from the substrate layer;

3. The display panel according to claim 1, wherein the surround structure comprises at least one break-off area, the surround structure being broken at the break-off area, the break-off area connecting the open area and the transition area.

4. The display panel according to claim 3, wherein the surround structure comprises a plurality of the break-off regions, and the plurality of break-off regions are distributed at equal intervals along the surround structure.

5. The display panel according to claim 3 or 4, wherein the display panel comprises at least two circles of the surrounding structures, the surrounding structures located at the outer side are arranged around the surrounding structures located at the inner side, and the broken regions of two adjacent surrounding structures are mutually staggered;

preferably, a plurality of turns of the surrounding structure are concentrically arranged.

6. The display panel according to claim 1, wherein an orthographic shape of the surrounding structure on the substrate layer corresponds to an outer contour of the opening area.

7. The display panel of claim 1, wherein the second metal routing layer is located on a side of the first metal routing layer away from the substrate layer, and the support unit is located on a side of the second metal routing layer away from the first metal routing layer.

8. The display panel according to claim 1, further comprising a transparent adhesive layer disposed in the opening region, wherein the surrounding structure is configured to block the transparent adhesive layer from extending from the opening region to the active display region.

9. The display panel according to claim 1, wherein the first metal routing layer comprises a plurality of metal traces, and at least some of the metal traces extend from one side of the transition area to the other side of the transition area around the open area.

10. An electronic device characterized by comprising the display panel of any one of claims 1 to 9.