Display panel, manufacturing method thereof and display device

Abstract

The invention is applicable to the technical field of display equipment, and provides a display panel, a manufacturing method thereof and a display device.The display panel is provided with a display area, a hole opening area and a transition area located between the display area and the hole opening area, and the display panel comprises a substrate; the circuit structure layer is arranged on one side of the substrate and comprises a plurality of signal processing structure layers and a plurality of insulating layers, each signal processing structure layer comprises a plurality of signal wires and at least one virtual wire which are arranged around the hole opening area, and the virtual wires are located on the sides, facing the hole opening area, of the signal wires; the light-emitting layer is arranged on the side, away from the substrate, of the circuit structure layer and comprises a plurality of light-emitting units located in the display area. According to the display panel, over-etching of the signal wires can be avoided, the problems that the signal wires are too thin, broken and the like cannot occur to the signal wires, the signal wires can be normally used, and the display effect of the display panel cannot be affected.

Description

Technical Field

[0001] The present application belongs to the technical field of display devices, and in particular, relates to a display panel and a manufacturing method thereof, and a display device. Background Art

[0002] With the development of display technology, OLED (Organic Light Emitting Diode) display panels have been widely used due to their advantages such as lighter weight, higher brightness, lower power consumption, faster response and higher definition.

[0003] In the processing and manufacturing process of display panels in related technologies, the manufacturing yield and performance reliability of the display panels need to be improved. Summary of the invention

[0004] In view of this, the embodiments of the present application provide a display panel and a manufacturing method thereof, and a display device to solve the problem that the manufacturing yield and performance reliability of the current display panel need to be improved.

[0005] A first aspect of an embodiment of the present application provides a display panel having a display area, an opening area, and a transition area located between the display area and the opening area, the display panel comprising: a substrate; a circuit structure layer, arranged on one side of the substrate, comprising a plurality of signal processing structure layers and a plurality of insulating layers, the signal processing structure layer comprising a plurality of signal routing lines and at least one virtual routing line arranged around the opening area, the virtual routing line being located on a side of the signal routing line facing the opening area; and a light-emitting layer, arranged on a side of the circuit structure layer away from the substrate, comprising a plurality of light-emitting units located in the display area.

[0006] The above-mentioned display panel, by setting signal routing and virtual routing around the opening area in the signal processing structure layer, when the opening area is etched, due to the existence of the virtual routing, it can play a protective role for the signal routing on the side adjacent to the opening area, and replace the signal routing to be etched, thereby reducing the load effect during the etching process and avoiding over-etching of the signal routing. The signal routing will not have problems such as routing being too thin or routing breakage, so that the signal routing can be used normally without affecting the display effect of the display panel.

[0007] In one embodiment, the signal routing lines and the dummy routing lines are both located in the transition area, and at least part of the signal routing lines are located on a side of the transition area adjacent to the display area.

[0008] In one embodiment, at least part of the virtual routing is located on one side of the transition area adjacent to the opening area and is a closed annular structure; preferably, the orthographic projection of the virtual routing on the substrate does not overlap with the opening area. This design allows the virtual routing to be arranged as close to the opening area as possible, thereby improving the protection effect of the virtual routing when the opening area is etched.

[0009] In one embodiment, the virtual routing includes multiple routing segments that are not connected to each other; or the virtual routing includes a whole circle of routing that is connected end to end; preferably, in two adjacent circles of the virtual routing, the multiple routing segments of one circle of the virtual routing are staggered with the multiple routing segments of the other circle of the virtual routing; preferably, at least two of the multiple signal processing structure layers include the virtual routing. With this design, the routing segments staggered with each other in the virtual routing can also provide better protection for the signal routing.

[0010] In one embodiment, the center of the annular structure formed by the virtual lines coincides with the center of the opening area. With this arrangement, the arrangement between the virtual lines and the opening area is more uniform.

[0011] In one embodiment, there are multiple virtual routing lines, and the virtual routing lines are arranged at intervals from each other. In this way, the protection effect of the multiple virtual routing lines is better.

[0012] In one embodiment, the spacing between any two adjacent virtual routing lines is equal. With this design, the arrangement of multiple virtual routing lines is more uniform.

[0013] In one embodiment, the circuit structure layer also includes a dam structure located between the signal routing line and the virtual routing line, and the dam structure is spaced apart from the signal routing line and the virtual routing line respectively; preferably, there are multiple dam structures, and each dam structure is spaced apart from each other; preferably, the dam structure is a closed ring structure.

[0014] In one embodiment, the orthographic projection shape of the opening area on the substrate surface is circular, elliptical or polygonal. By setting the opening area to the above shape, it is convenient to process and manufacture the display area and the opening area, and it is also convenient to set the arrangement between the display area and the opening area.

[0015] In one embodiment, the display panel further comprises an isolation structure, wherein the isolation structure is disposed on a side of the circuit structure layer away from the substrate, the isolation structure encloses an isolation opening, and the light emitting unit is disposed corresponding to the isolation opening.

[0016] In one embodiment, the display panel further includes a pixel defining layer, the pixel defining layer is arranged on the side of the circuit structure layer away from the substrate, the pixel defining layer defines a plurality of pixel openings spaced apart from each other in the display area, the light-emitting unit is at least partially located in the pixel opening; the isolation opening is arranged in a one-to-one correspondence with the pixel opening; or the isolation opening is arranged in a corresponding manner with at least two of the pixel openings. By providing the pixel defining layer, signal crosstalk between two adjacent light-emitting units can be avoided, thereby improving the display effect of the display panel.

[0017] In one embodiment, the isolation structure includes an isolation body and a blocking portion, wherein the blocking portion is located on a side of the isolation body away from the substrate; and the orthographic projection of the isolation body on the substrate is located within the orthographic projection of the blocking portion on the substrate. By providing the isolation body and the blocking portion, the processing and manufacturing of the light-emitting layer of the display panel does not require the use of a mask, thereby improving the manufacturing accuracy, reducing the manufacturing cost, and facilitating the processing and manufacturing of the light-emitting unit.

[0018] In one embodiment, the isolation structure further includes a base portion, the base portion is located on a side of the isolation body close to the substrate; the orthographic projection of the isolation body on the substrate is located within the orthographic projection of the base portion on the substrate. By providing the base portion in the isolation structure, the processing, manufacturing and molding of the light-emitting unit can be further facilitated.

[0019] A second aspect of an embodiment of the present application provides a method for manufacturing a display panel, comprising: forming a plurality of signal processing structure layers and a plurality of insulating layers on one side of a substrate, the signal processing structure layer comprising a plurality of signal routing lines and at least one virtual routing line arranged around an area to be opened, the virtual routing line being located on a side of the signal routing line facing the area to be opened; forming a light-emitting layer on a side of the insulating layer away from the substrate; etching the light-emitting layer to form a light-emitting unit; and cutting the area to be opened to remove at least part of the virtual routing line to form an opening.

[0020] The display panel manufactured by the above method, by arranging signal routing and virtual routing around the opening area in the signal processing structure layer, when the opening area is etched, due to the existence of the virtual routing, it can play a protective role for the signal routing on the side adjacent to the opening area, and is etched instead of the signal routing, thereby reducing the load effect during the etching process and avoiding over-etching of the signal routing. The signal routing will not have problems such as the routing being too thin or the routing being broken, so that the signal routing can be used normally without affecting the display effect of the display panel.

[0021] In one embodiment, all virtual wirings are removed when cutting is performed in the area to be opened.

[0022] A third aspect of the embodiments of the present application provides a display device, comprising the display panel as described in the first aspect; or a display panel prepared by the method for manufacturing a display panel according to the second aspect.

[0023] It can be understood that the beneficial effects of the third aspect mentioned above can be found in the relevant descriptions of the first and second aspects mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 is a structural cross-sectional view of a display panel provided by an embodiment of the present application;

[0026] Figure 2 is an enlarged schematic diagram of a top view of a portion of the structure near the opening area in a display panel provided by an embodiment of the present application;

[0027] Figure 3 is an enlarged schematic diagram of a top view of a portion of the structure near the opening area in a display panel provided in another embodiment of the present application;

[0028] Figure 4 is a structural schematic diagram of an isolation structure and a light-emitting unit in a display panel provided by an embodiment of the present application;

[0029] Figure 5 is a flow chart of a method for manufacturing a display panel provided by an embodiment of the present application;

[0030] Fig. 6A is an enlarged schematic diagram of the structure before cutting near the opening area in the process of the manufacturing method of the display panel provided by another embodiment of the present application;

[0031] Figure 6B It is an enlarged schematic diagram of the structure after cutting near the opening area in the process of the manufacturing method of the display panel provided by another embodiment of the present application;

[0032] Figure 7 It is a schematic diagram of the overall structure of a display device provided by an embodiment of the present application.

[0033] Figure Number:

[0034] 10. Display device;

[0035] 100. Display panel;

[0036] 110. substrate;

[0037] 120, circuit structure layer, 121, signal processing structure layer, 1211, signal routing, 1212, virtual routing, 1213, dam structure; 122, insulation layer;

[0038] 130, isolation structure, 131, isolation opening, 132, isolation body, 133, blocking portion, 134, base portion;

[0039] 140. light-emitting layer, 141. light-emitting unit;

[0040] 150, pixel defining layer, 151, pixel opening;

[0041] 160. Driving circuit;

[0042] 171, a first encapsulation layer, 172, a second encapsulation layer;

[0043] AA, display area, BA, transition area, VA, opening area. DETAILED DESCRIPTION

[0044] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0045] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0046] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0047] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0048] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0049] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways. "Multiple" means two or more.

[0050] With the development of process technology and the increasing demand for the use of display devices, new display product forms such as UDC (Under-Display Camera) technology have emerged. UDC technology hides the camera under the screen, thereby eliminating the "bangs" area or hole area corresponding to the front camera, achieving a truly full display effect.

[0051] In products with under-screen camera technology, in order not to affect the normal operation of the camera under the screen in the under-screen camera area, it is necessary to remove some film layers in the under-screen camera area to reduce its obstruction of light. However, in the process of removing some film layers in the under-screen camera area, there are problems such as metal routing being too thin or routing breakage due to over-engraving, which affects the normal use of the metal routing and further affects the display effect of the display panel.

[0052] For example, the display panel in the related art includes a substrate, a first planarization layer, a circuit structure layer, and a second planarization layer stacked in sequence, wherein the circuit structure layer includes metal traces arranged in the display area. In the process of removing the film layer in the camera area under the screen, there are problems such as the metal traces being easily over-etched, resulting in the traces being too thin or the traces being broken.

[0053] To at least partially address the problems in the related art, see Figure 1 and Figure 2 As shown, an embodiment of the present application provides a display panel 100, which has a display area AA, an opening area VA and a transition area BA located between the display area AA and the opening area VA. The display panel 100 includes: a substrate 110, a circuit structure layer 120 and a light-emitting layer 140.

[0054] Among them, the display area AA is the area in the display panel 100 used for displaying the picture, and the opening area VA is arranged on at least one side of the display area AA, surrounded by the display area AA, and is used to set the under-screen camera or other similar sensing elements. In order to achieve a smooth transition in the display effect, a transition area BA is also provided between the display area AA and the opening area VA. The specific shape, size, relative position relationship, quantity, arrangement method, etc. of the display area AA, the opening area VA and the transition area BA can be set according to the actual use requirements of the display panel 100, and are not limited here.

[0055] like Figure 2 As shown, in some embodiments, the transition area BA is arranged around the opening area VA, and the display area AA is arranged around the transition area BA. That is, the transition area BA is arranged at the periphery of the opening area VA, enclosing the opening area VA, and the display area AA is arranged at the periphery of the transition area BA, enclosing the transition area BA.

[0056] Specifically, the circuit structure layer 120 and the light emitting layer 140 are respectively arranged on the substrate 110, wherein the substrate 110 is used to support and carry other film layers in the display panel 100. For example, the substrate 110 can be made of materials such as glass (Glass), polyimide (PI, Polyimide), etc. A pixel circuit for controlling the required light emitting unit 141 to emit light at the right time can be arranged on the substrate 110, and a driving circuit 160 for driving the light emitting unit 141 to emit light can also be arranged.

[0057] The circuit structure layer 120 is arranged on one side of the substrate 110, and the circuit structure layer 120 includes multiple signal processing structure layers 121 and multiple insulating layers 122. The signal processing structure layer 121 includes a signal routing 1211 and a virtual routing 1212 arranged around the opening area VA. The virtual routing 1212 is located on the side of the signal routing 1211 facing the opening area VA.

[0058] Among them, the signal processing structure layer 121 is used to realize the transmission of various signals, which may include but is not limited to the first metal layer M1, the second metal layer M2, the third metal layer M3, etc., and the insulating layer 122 is arranged between two adjacent layers of the signal processing structure layer 121, so that the two adjacent layers of the signal processing structure layer 121 remain relatively insulated. Specifically, the signal processing structure layer 121 includes a signal line 1211 and a virtual line 1212 arranged around the opening area VA, and the signal line 1211 and the virtual line 1212 can respectively include a plurality of metal lines of the same or different types, which are arranged according to actual use requirements and are not limited here. Exemplarily, the signal line 1211 and the virtual line 1212 may include one or more of a power signal line, a data signal line, a reference signal line, etc. The number of the insulating layer 122 and its setting position are flexibly set according to the different settings of the signal processing structure layer 121, and are not limited here.

[0059] Among them, the virtual routing 1212 is located on the side of the signal routing 1211 facing the opening area VA. In the embodiment of the present application, the signal routing 1211 is used to realize the signal transmission function, and the virtual routing 1212 is used to protect the signal routing 1211. Since the virtual routing 1212 is located on the side of the signal routing 1211 facing the opening area VA, when the opening area VA is etched, at least part of the virtual routing 1212 can be etched away. Due to the existence of the virtual routing 1212, it can protect the signal routing 1211 on the side adjacent to the opening area VA, and is etched instead of the signal routing 1211, thereby reducing the load effect during the etching process and avoiding over-etching of the signal routing 1211.

[0060] The light-emitting layer 140 is disposed on a side of the circuit structure layer 120 away from the substrate 110. The light-emitting layer 140 includes a plurality of light-emitting units 141 located in the display area AA. For example, the light-emitting unit 141 may be a red light-emitting unit for emitting red light, a green light-emitting unit for emitting green light, a blue light-emitting unit for emitting blue light, or a white light-emitting unit for emitting white light. The number of different types of light-emitting units 141, the arrangement of the plurality of light-emitting units 141, the spacing between two adjacent light-emitting units 141, etc. may be flexibly set and are not limited here. Different light-emitting units 141 can realize synchronous or asynchronous light emission under the driving action of the driving circuit 160, so that the display panel 100 displays different desired images.

[0061] The display panel 100 of the embodiment of the present application, by setting the signal routing 1211 and the virtual routing 1212 around the opening area VA in the signal processing structure layer 121, when the opening area VA is etched, due to the existence of the virtual routing 1212, it can play a protective role for the signal routing 121 on the side adjacent to the opening area VA, and replace the signal routing 1211 to be etched, thereby reducing the load effect during the etching process and avoiding over-etching of the signal routing 1211. The signal routing 1211 will not have problems such as the routing being too thin or the routing being broken, so that the signal routing 1211 can be used normally without affecting the display effect of the display panel 100.

[0062] like Figure 1 and Figure 2 As shown, in one embodiment, the signal wiring 1211 and the dummy wiring 1212 are both located in the transition area BA, and at least part of the signal wiring 1211 is located on a side of the transition area BA adjacent to the display area AA.

[0063] At the same time, Figure 2 As shown, at least part of the virtual routing line 1212 is located on one side of the transition area BA adjacent to the opening area VA and is a closed ring structure, and the distances between two adjacent virtual routing lines 1212 and the center of the opening area VA are different. The orthographic projection of the virtual routing line 1212 on the substrate 110 does not overlap with the opening area VA, that is, the virtual routing line 1212 completely exposes the opening area VA.

[0064] Such a design enables the virtual wiring 1212 to be arranged as close to the opening area VA as possible. When the opening area VA is etched, at least a portion of the virtual wiring 1212 can be etched away, thereby improving the protection effect of the virtual wiring 1212.

[0065] like Figure 2 As shown, in some embodiments, optionally, the virtual routing 1212 includes multiple routing segments that are not connected to each other; preferably, in two adjacent circles of virtual routing 1212, the multiple routing segments of one circle of virtual routing 1212 are interlaced with the multiple routing segments of the other circle of virtual routing 1212.

[0066] That is to say, the virtual routing 1212 has multiple routing segments that are not connected to each other, and the multiple routing segments are located on the same ring structure and are arranged to form a closed structure. In two adjacent circles of virtual routing 1212, the multiple routing segments of one circle of virtual routing 1212 are interlaced with the multiple routing segments of the other circle of virtual routing 1212.

[0067] With such a design, the multiple routing segments staggered with each other in the virtual routing 1212 can also provide better protection for the signal routing 1211 .

[0068] Please combine Figure 1 Also see Figure 3 In other embodiments, each virtual routing line 1212 includes a full circle of routing lines connected end to end. That is, different from the previous embodiment, the virtual routing line 1212 has a full circle of routing lines connected end to end, and the full circle of routing lines is surrounded to form a closed structure, so that the virtual routing line 1212 is easily formed.

[0069] The circuit structure layer 120 includes multiple signal processing structure layers 121, one of the signal processing structure layers 121 may include a virtual routing line 1212, or at least two of the signal processing structure layers 121 may include a virtual routing line 1212. In this way, the setting of the circuit structure layer 120 is more flexible and diverse.

[0070] In some embodiments, optionally, the center of the ring structure surrounded by the virtual routing 1212 coincides with the center of the opening area VA. Further, there are multiple virtual routings 1212, and each virtual routing 1212 is arranged at intervals from each other. In this way, multiple virtual routings 1212 are arranged concentrically with the center of the opening area VA as the center, which makes the arrangement between the virtual routing 1212 and the opening area VA more uniform, and the protection effect of the multiple virtual routings 1212 is better.

[0071] Based on the above embodiment, the spacing between any two adjacent virtual lines 1212 is equal. In this design, multiple virtual lines 1212 are not only concentric but also arranged at equal spacing, and the arrangement between multiple virtual lines 1212 is more uniform.

[0072] In some embodiments, optionally, the circuit structure layer 120 also includes a dam structure 1213 located between the signal line 1211 and the virtual line 1212, and the dam structure 1213 is spaced apart from the signal line 1211 and the virtual line 1212 respectively; preferably, there are multiple dam structures 1213, and each dam structure 1213 is spaced apart from each other.

[0073] like Figure 1 As shown, in the circuit structure layer 120, the dam structure 1213 can be formed simultaneously with at least part of the insulating layer 122 in the same processing step to achieve an isolation effect between the signal wiring 1211 and the dummy wiring 1212. The dam structure 1213 can also be a closed ring structure to achieve a certain isolation effect between the signal wiring 1211 and the dummy wiring 1212.

[0074] As described above, the specific shapes, sizes, relative positional relationships, quantities, arrangements, etc. of the display area AA, transition area BA, and opening area VA can be set according to the actual use requirements of the display panel 100. In some embodiments, optionally, the orthographic projection shape of the opening area VA on the surface of the substrate 110 is circular, elliptical, or polygonal.

[0075] By setting the opening area VA to the above shape, it is convenient to process and manufacture the display area AA, transition area BA and opening area VA, and it is also convenient to set the arrangement between the display area AA, transition area BA and opening area VA. Figure 2 and Figure 3 In the illustrated embodiment, the orthographic projection shape of the opening area VA on the surface of the substrate 110 is a circle.

[0076] Please combine Figure 1 Also see Figure 4 In some embodiments, the display panel 100 further includes an isolation structure 130, which is located in the display area AA and is disposed on the side of the circuit structure layer 120 away from the substrate 110. The isolation structure 130 encloses an isolation opening 131, and the light-emitting unit 141 is disposed corresponding to the isolation opening 131. The isolation structure 130 can enclose an isolation opening 131 for at least partially accommodating the light-emitting unit 141, so as to complete the arrangement and molding of the light-emitting unit 141 without the aid of a mask, that is, in the light-emitting layer 140, an isolation structure 130 is disposed between two adjacent light-emitting units 141, or an isolation structure 130 is disposed between every two adjacent light-emitting units 141. The specific structural form of the isolation structure 130 is not limited, as long as it can play the role of isolating two light-emitting units 141.

[0077] The composition and preparation of the isolation structure 130 are described in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 099072, CN117979755A, CN117998900A, CN The present invention is further described in CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, and CN117500332A for reference.

[0078] In order to further avoid signal crosstalk between adjacent light-emitting units 141, in some embodiments, the display panel 100 optionally further includes a pixel defining layer 150, which is disposed on the side of the circuit structure layer 120 away from the substrate 110, and the pixel defining layer 150 defines a plurality of pixel openings 151 spaced apart from each other in the display area AA, and the light-emitting unit 141 is at least partially located in the pixel opening 151; the isolation opening 131 is disposed in a one-to-one correspondence with the pixel opening 151; or the isolation opening 131 is disposed in a corresponding manner with at least two pixel openings 151. By providing the pixel defining layer 150, signal crosstalk between two adjacent light-emitting units 141 can be avoided, and the display effect of the display panel 100 can be improved.

[0079] The specific structural form of the isolation structure 130 is not limited, such as Figure 4 As shown, in some embodiments, optionally, the isolation structure 130 includes an isolation body 132 and a blocking portion 133, wherein the blocking portion 133 is located on the side of the isolation body 132 facing away from the substrate 110; the orthographic projection of the isolation body 132 on the substrate 110 is located within the orthographic projection of the blocking portion 133 on the substrate 110.

[0080] That is to say, the isolation structure 130 includes a relatively independent isolation body 132 and a blocking portion 133, wherein the isolation body 132 is located on the substrate 110 or the pixel defining layer 150, and the blocking portion 133 is located on the side of the isolation body 132 away from the substrate 110, and the area covered by the orthographic projection of the blocking portion 133 on the substrate 110 is relatively large, while the area covered by the orthographic projection of the isolation body 132 on the substrate 110 is relatively small, so that the orthographic projection of the blocking portion 133 on the substrate 110 can cover the orthographic projection of the isolation body 132 on the substrate 110. The cross-sectional shapes of the isolation body 132 and the blocking portion 133 can be regular shapes, such as rectangles, trapezoids, etc., or irregular shapes. Figure 4 In the embodiment shown, the cross-sectional shapes of the spacer 132 and the blocking portion 133 are both trapezoidal. By providing the spacer 132 and the blocking portion 133, the light-emitting layer 140 of the display panel 100 does not need to use a mask plate for processing and manufacturing, which improves the manufacturing accuracy, reduces the manufacturing cost, and facilitates the processing and manufacturing of the light-emitting unit 141.

[0081] In some embodiments, optionally, the isolation structure 130 further includes a base portion 134 , which is located on a side of the isolation body 132 close to the substrate 110 ; the orthographic projection of the isolation body 132 on the substrate 110 is located within the orthographic projection of the base portion 134 on the substrate 110 .

[0082] Similarly, the orthographic projection of the base portion 134 on the substrate 110 covers a larger area, while the orthographic projection of the isolating body 132 on the substrate 110 covers a relatively smaller area, so that the orthographic projection of the base portion 134 on the substrate 110 can cover the orthographic projection of the isolating body 132 on the substrate 110. That is, the base portion 134, the isolating body 132 and the blocking portion 133 in the isolation structure 130 are stacked in sequence, and by arranging the base portion 134 in the isolation structure 130, the processing and manufacturing of the light-emitting unit 141 can be further facilitated.

[0083] Based on the same invention concept, please combine Figures 1 to 4 Also see Figure 5 The embodiment of the present application further provides a method for manufacturing a display panel 100, the method comprising the following steps:

[0084] S102, forming a plurality of signal processing structure layers 121 and a plurality of insulating layers 122 on one side of the substrate 110, wherein the signal processing structure layer 121 includes a plurality of signal routing lines 1211 and at least one dummy routing line 1212 arranged around the area to be opened, and the dummy routing line 1212 is located on a side of the signal routing line 1211 facing the area to be opened;

[0085] S104, forming a light emitting layer 140 on a side of the insulating layer 122 facing away from the substrate 110;

[0086] S106, etching the light-emitting layer 140 to form a light-emitting unit 141;

[0087] S108 , cutting is performed in the area to be opened, and at least a portion of the virtual wiring 1212 is removed to form an opening.

[0088] The display panel 100 manufactured by the above method, by setting the signal routing 1211 and the virtual routing 1212 around the opening area VA in the signal processing structure layer 121, when the opening area VA is etched, due to the existence of the virtual routing 1212, at least a part of the virtual routing 1212 is removed to form an opening, which can play a protective role for the signal routing 1211 on the side adjacent to the opening area VA, and is etched instead of the signal routing 1211, thereby reducing the load effect during the etching process and avoiding over-etching of the signal routing 1211. The signal routing 1211 will not have problems such as the routing being too thin or the routing being broken, so that the signal routing 1211 can be used normally without affecting the display effect of the display panel 100.

[0089] In step S108, after removing at least part of the virtual wiring 1212 in the area to be opened, the following Figure 2 or Figure 3 See the opening shown. Fig. 6A and Figure 6BIn other embodiments, when cutting is performed in the area to be opened in step S108, all virtual traces 1212 in the area to be opened may be removed to form a Figure 6B The opening shown is compared to Figure 2 and Figure 3 The embodiment shown, Figure 6B In the embodiment shown in FIG. 1 , the range occupied by the opening area VA is relatively larger, while the range occupied by the transition area BA is relatively smaller, which can be selected according to actual process requirements or process conditions.

[0090] Please combine Figures 1 to 4 Also see Figure 7 The embodiment of the present application further provides a display device 10, which includes a display panel 100 as in any one of the above embodiments, or a display panel 100 prepared by a manufacturing method of the display panel 100 as in any one of the above embodiments.

[0091] The display panel 100 disclosed in the embodiment of the present application is applied to the display device 10 to provide the function of displaying a picture. The display device 10 can be any product or component with a display function, including but not limited to a mobile phone, a tablet computer, a laptop computer, an e-reader, a wearable device, a remote control, a television, a desktop computer, a vehicle-mounted device, etc. Since the display panel 100 in any of the above embodiments is adopted, by setting the signal routing 1211 and the virtual routing 1212 around the opening area VA in the signal processing structure layer 121, when the opening area VA is etched, due to the existence of the virtual routing 1212, the signal routing 1211 on the side adjacent to the opening area VA can be protected, and the signal routing 1211 is etched instead of being etched, thereby reducing the load effect during the etching process, avoiding over-etching of the signal routing 1211, and the signal routing 1211 will not have problems such as too thin routing and routing breakage, so that the signal routing 1211 can be used normally without affecting the display effect of the display panel 100.

[0092] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0093] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that: The display panel has a display area, an opening area, and a transition area between the display area and the opening area, and includes: substrate; a circuit structure layer, disposed on one side of the substrate, comprising a plurality of signal processing structure layers and a plurality of insulating layers, wherein the signal processing structure layer comprises a plurality of signal routing lines and at least one dummy routing line disposed around the opening area, wherein the dummy routing line is located on a side of the signal routing line facing the opening area; and The light-emitting layer is arranged on a side of the circuit structure layer away from the substrate, and includes a plurality of light-emitting units located in the display area.

2. The display panel according to claim 1, wherein: The signal wiring and the dummy wiring are both located in the transition area, and at least part of the signal wiring is located on a side of the transition area adjacent to the display area.

3. The display panel according to claim 2, wherein: At least part of the virtual routing line is located on a side of the transition area adjacent to the opening area and is a closed annular structure; Preferably, the orthographic projection of the virtual routing line on the substrate does not overlap with the opening area.

4. The display panel according to claim 3, wherein: The virtual routing line includes a plurality of routing segments that are not connected to each other; or The virtual routing includes a full circle of routing connected end to end; Preferably, in two adjacent circles of the virtual routing, the multiple routing segments of one circle of the virtual routing are arranged alternately with the multiple routing segments of the other circle of the virtual routing; Preferably, at least two signal processing structure layers among the plurality of signal processing structure layers include the virtual routing lines.

5. The display panel according to claim 3, wherein: The center of the annular structure surrounded by the virtual routing coincides with the center of the opening area.

6. The display panel according to claim 3, wherein: There are multiple virtual routing lines, and the virtual routing lines are arranged at intervals from each other.

7. The display panel according to claim 6, wherein: The distances between any two adjacent virtual routing lines are equal.

8. The display panel according to claim 1, wherein: The circuit structure layer further includes a dam structure located between the signal routing line and the dummy routing line, wherein the dam structure is spaced apart from the signal routing line and the dummy routing line respectively; Preferably, there are multiple dam structures, and the dam structures are spaced apart from each other; Preferably, the dam structure is a closed annular structure.

9. The display panel according to claim 1, wherein: The orthographic projection shape of the opening area on the surface of the substrate is circular, elliptical or polygonal.

10. The display panel according to claim 1, wherein: The display panel further comprises an isolation structure, which is arranged on a side of the circuit structure layer away from the substrate. The isolation structure surrounds an isolation opening, and the light-emitting unit is arranged corresponding to the isolation opening.

11. The display panel according to claim 10, wherein: The display panel further comprises a pixel defining layer, the pixel defining layer being arranged on a side of the circuit structure layer away from the substrate, the pixel defining layer defining a plurality of pixel openings spaced apart from each other in the display area, and the light emitting unit being at least partially located in the pixel openings; The isolation openings are arranged in one-to-one correspondence with the pixel openings; or The isolation opening is arranged corresponding to at least two of the pixel openings.

12. The display panel according to claim 10, wherein: The isolation structure comprises an isolation body and a blocking portion, wherein the blocking portion is located on a side of the isolation body facing away from the substrate; The orthographic projection of the spacer on the substrate is located within the orthographic projection of the blocking portion on the substrate.

13. The display panel according to claim 12, wherein: The isolation structure further includes a base portion, and the base portion is located on a side of the isolation body close to the substrate; The orthographic projection of the isolator on the substrate is located within the orthographic projection of the base portion on the substrate.

14. A method for manufacturing a display panel, characterized in that: include: A plurality of signal processing structure layers and a plurality of insulating layers are formed on one side of the substrate, wherein the signal processing structure layer includes a plurality of signal routing lines and at least one virtual routing line arranged around the area to be opened, and the virtual routing line is located on a side of the signal routing line facing the area to be opened; forming a light-emitting layer on a side of the insulating layer facing away from the substrate; Etching the light-emitting layer to form a light-emitting unit; Cutting is performed in the area to be opened to remove at least a portion of the virtual wiring to form an opening.

15. The manufacturing method according to claim 14, characterized in that: All virtual routing lines are removed when cutting is performed in the area to be opened.

16. A display device, characterized in that: include: The display panel according to any one of claims 1 to 13; or A display panel manufactured by the method for manufacturing a display panel according to claim 14 or 15.

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