Display panel, manufacturing method thereof and mobile terminal

Abstract

This application discloses a display panel and its manufacturing method, as well as a mobile terminal. The display panel includes a substrate, a driving device layer, and an anode layer. The anode layer is disposed on the driving device layer and includes multiple anodes and signal traces. The anodes include a first sub-part disposed on the driving device layer and a second sub-part disposed on the first sub-part. The anode layer includes a first conductive sub-layer disposed on the driving device layer and a second conductive sub-layer disposed on the first conductive sub-layer. The first conductive sub-layer includes a first sub-part and signal traces, and the second conductive sub-layer includes a second sub-part. The display panel structure of this application can effectively reduce the number of metal trace layers in the display panel, reduce the thickness of the display panel, and improve the material utilization rate of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display panel and its manufacturing method, and a mobile terminal. Background Technology

[0002] Currently, the anode layer of mass-produced OLED display panels typically includes a high work function film layer and a metal film layer with good conductivity. At the same time, the display panel also has multiple metal wiring layers. The overlapping arrangement of the metal wiring layer and the anode layer makes the overall thickness of the display panel relatively large, which is not conducive to the thinning of the display panel and the utilization rate of materials is low. Summary of the Invention

[0003] This application provides a display panel and its manufacturing method, as well as a mobile terminal, which can effectively reduce the number of metal trace layers in the display panel, reduce the thickness of the display panel, and improve the material utilization rate of the display panel.

[0004] This application provides a display panel, including:

[0005] Substrate, and driving device layer disposed on the substrate;

[0006] An anode layer is disposed on the driving device layer and includes multiple anodes and signal traces. The anode includes a first sub-part disposed on the driving device layer and a second sub-part disposed on the first sub-part.

[0007] The anode layer includes a first conductive sublayer disposed on the driving device layer and a second conductive sublayer disposed on the first conductive sublayer. The first conductive sublayer includes a first sub-section and the signal trace, and the second conductive sublayer includes a second sub-section.

[0008] Optionally, the display panel further includes a pixel definition layer disposed on the anode layer, the pixel definition layer having an opening corresponding to the anode, and the pixel definition layer covering the signal trace;

[0009] The driving device layer includes multiple driving devices, the multiple anodes include multiple anode groups, one anode group includes at least two anodes, the signal traces include anode connection lines, in one anode group, each anode is interconnected with the others through the anode connection lines, and one anode is connected to the driving device.

[0010] Optionally, the signal trace includes a bridging segment; the driving device layer includes at least one metal layer, and insulating layers are stacked between each of the metal layers and between the metal layer and the anode layer, and at least one of the metal layers includes multiple driving signal traces;

[0011] A first via is provided on the insulating layer between the drive signal trace and the bridging segment. The bridging segment passes through the first via and connects to the drive signal trace. Two different drive signal traces are bridged by the bridging segment.

[0012] Optionally, the signal trace includes a first electrode trace, and at least one of the metal layers includes a second electrode trace;

[0013] A second via is provided on the insulating layer between the second electrode trace and the first electrode trace, and the first electrode trace is connected to the second electrode trace through the second via.

[0014] Optionally, the second conductive sublayer includes a first material layer and a second material layer disposed on the first material layer. The second sub-part includes a reflective anode and a transparent anode disposed on the reflective anode. The first material layer includes the reflective anode, and the second material layer includes the transparent anode.

[0015] Optionally, in a direction perpendicular to the substrate, the projection of the reflective anode coincides with that of the transparent anode.

[0016] Optionally, the material of the second material layer includes indium tin oxide.

[0017] Optionally, the first conductive layer and the second material layer are made of the same material.

[0018] This application also provides a method for manufacturing a display panel, including the following steps:

[0019] A substrate is provided on which a driving device layer is formed;

[0020] An anode layer is formed on the driving device layer. The anode layer includes a plurality of anodes and signal traces. The anode includes a first sub-part disposed on the driving device layer and a second sub-part disposed on the first sub-part. The formation of the anode layer includes a first conductive sub-layer formed on the driving device layer and a second conductive sub-layer formed on the first conductive sub-layer. The first conductive sub-layer includes a first sub-part and the signal traces, and the second conductive sub-layer includes a second sub-part.

[0021] This application also provides a mobile terminal, including a display panel and a terminal body as described in any of the above embodiments, wherein the terminal body and the display panel are integrated into one unit.

[0022] The beneficial effects of this invention include at least the following:

[0023] By configuring the anode layer of the display panel of the present invention to include multiple anodes and signal traces, the anode includes a first sub-part disposed on the driving device layer and a second sub-part disposed on the first sub-part, the anode layer includes a first conductive sub-layer disposed on the driving device layer and a second conductive sub-layer disposed on the first conductive sub-layer, the first conductive sub-layer includes a first sub-part and signal traces, and the second conductive sub-layer includes a second sub-part, so that the first conductive sub-layer forming the anode can be used not only as part of the anode but also as other signal traces in the display panel, thereby improving the material utilization rate in the panel manufacturing process, reducing the number of metal trace layers in the display panel, reducing production costs, and enhancing market competitiveness. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the anode layer structure provided in an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0027] Figure 3 This is a schematic diagram of another display panel structure provided in an embodiment of this application;

[0028] Figure 4 This is a schematic diagram of another display panel structure provided in an embodiment of this application;

[0029] Figure 5 This is a schematic diagram of another display panel structure provided in an embodiment of this application;

[0030] Figure 6 This is a flowchart illustrating the manufacturing process of the display panel provided in an embodiment of this application;

[0031] Figure 7a This is a flowchart illustrating the manufacturing steps of a display panel according to an embodiment of this application;

[0032] Figure 7b This is a flowchart illustrating the manufacturing steps of a display panel according to an embodiment of this application;

[0033] Figure 7c This is a flowchart illustrating the manufacturing steps of a display panel according to an embodiment of this application;

[0034] Figure 7dThis is a flowchart illustrating the manufacturing steps of a display panel according to an embodiment of this application;

[0035] Figure 7e This is a diagram illustrating the manufacturing steps of a display panel according to an embodiment of this application. Detailed Implementation

[0036] 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. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] This application provides a display panel, a method for manufacturing the display panel, and a mobile terminal. These are described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments. Furthermore, in the description of this application, the term "comprising" means "including but not limited to". The terms first, second, third, etc., are used merely as illustrative and do not impose numerical requirements or establish an order. Various embodiments of the present invention may exist in the form of a range; it should be understood that the description in the form of a range is merely for convenience and brevity and should not be construed as a rigid limitation on the scope of the present invention; therefore, it should be considered that the range description has specifically disclosed all possible sub-ranges and single numerical values ​​within that range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., and single digits within the range, such as 1, 2, 3, 4, 5, and 6, regardless of the range. Additionally, whenever a numerical range is indicated herein, it means including any referenced number (fraction or integer) within the indicated range.

[0038] To address the aforementioned technical problems, this application provides the following embodiments, which are detailed below. Figure 1-6 and Figures 7a-7e .

[0039] This application provides a display panel, such as... Figure 1 , Figure 2 As shown, it includes:

[0040] Substrate 10, driving device layer 20 disposed on substrate 10;

[0041] An anode layer 30 is disposed on the driving device layer 20 and includes a plurality of anodes 300 and signal traces 311. The anode 300 includes a first sub-part 312 disposed on the driving device layer 20 and a second sub-part 322 disposed on the first sub-part 312.

[0042] The anode layer 30 includes a first conductive sublayer 301 disposed on the driving device layer 20 and a second conductive sublayer 302 disposed on the first conductive sublayer 301. The first conductive sublayer 301 includes a first sub-section 312 and the signal trace 311, and the second conductive sublayer 302 includes a second sub-section 322.

[0043] Specifically, the display panel can be an OLED display panel, and this embodiment will use an OLED display panel for explanation.

[0044] It should be noted that the display panel includes a substrate 10, a driving device layer 20 disposed on the substrate 10, and a pixel light-emitting layer disposed on the driving device layer 20. The pixel light-emitting layer includes an anode layer 30 (the anode layer 30 includes multiple anodes 300) stacked on top of each other, a pixel definition layer 401, an organic light-emitting layer 402, and a cathode layer 403 disposed on the organic light-emitting layer 402. An opening 4011 is provided on the pixel definition layer 401 at a position corresponding to the anode 300, and the organic light-emitting layer 402 is disposed in the opening 4011. The driving device layer 20 includes multiple driving devices, and the driving devices are connected to the anodes 300 to drive the organic light-emitting layer 402 to emit light, so that the display panel can display.

[0045] Specifically, the pixel light-emitting layer includes a plurality of sub-pixels, and a driving device drives at least one of the sub-pixels to emit light.

[0046] Specifically, the substrate 10 can be glass, polyimide, or acrylic material; there are no specific limitations, and adjustments can be made according to actual production conditions.

[0047] Specifically, the driving device may be a thin-film transistor, and multiple thin-film transistors may be arranged in an array.

[0048] It should be noted that the thin-film transistor includes an active layer, which includes a channel portion 201 and source-drain connection segments 202 disposed on both sides of the channel portion 201 and connected to the channel portion 201, a gate insulating layer 203 disposed on the active layer corresponding to the channel portion 201, and a gate 204 disposed on the gate insulating layer 203. A metal layer 207 is disposed on the active layer, which includes a first metal layer. The first metal layer may include a source and a drain, which are respectively connected to the source-drain connection segments 202. The metal layer 207 may also include a second metal layer, which includes multiple drive signal lines L1. The drive signal lines L1 may specifically be signal lines 311 such as VDD, VSS, and data, or they may be gate drive lines connected to the gate 204.

[0049] Specifically, the anode layer 30 includes an anode 300 and a signal trace 311. The anode 300 includes a first sub-part 312 and a second sub-part 322 disposed on the first sub-part 312. The anode layer 30 includes a first conductive sub-layer 301 and a second conductive sub-layer 302 disposed on the second conductive sub-layer. The first conductive sub-layer 301 includes the signal trace 311 and the first sub-part 312 of the anode 300. That is, the signal trace 311 and the first sub-part 312 are disposed on the same layer and formed using the same photomask.

[0050] Specifically, the signal trace 311 can be used as a bridging segment 31101 to connect different driving signal traces L1 in the TFT through vias on the insulating layer, including but not limited to data signal traces, scan signal traces, etc. It can also be used as an anode connection line L2 connecting two adjacent anodes 300, or as an electrode in the TFT structure.

[0051] Specifically, the material of the first conductive electronic layer 301 includes, but is not limited to, indium tin oxide (ITO), aluminum-doped zinc oxide (AZO), and indium zinc oxide (IZO).

[0052] Specifically, the second conductive layer 302 can be a single-layer film or a stacked composite film, and there is no specific limitation.

[0053] Specifically, the second conductive sublayer 302 includes a second sub-section 322, and the first sub-section 312 and the second sub-section 322 are correspondingly disposed. The second sub-section 322 does not cover the signal trace 311 (the signal trace 311 of the first conductive sublayer 301).

[0054] It is understood that by setting the anode layer 30 of the display panel of the present invention to include a plurality of anodes 300 and signal traces 311, the anode 300 includes a first sub-part 312 disposed on the driving device layer 20 and a second sub-part 322 disposed on the first sub-part 312, the anode layer 30 includes a first conductive sub-layer 301 disposed on the driving device layer 20 and a second conductive sub-layer 302 disposed on the first conductive sub-layer 301, the first conductive sub-layer 301 includes a first sub-part 312 and signal traces 311, and the second conductive sub-layer 302 includes a second sub-part 322, so that the first conductive sub-layer 301 forming the anode 300 can be used not only as part of the anode 300, but also as other signal traces 311 in the display panel, thereby improving the material utilization rate in the panel manufacturing process, reducing the number of metal trace layers in the display panel, reducing production costs, and enhancing market competitiveness.

[0055] In one embodiment, such as Figure 2As shown, the display panel also includes a pixel definition layer 401 disposed on the anode layer 30, the pixel definition layer 401 having an opening 4011 corresponding to the anode 300, and the pixel definition layer 401 covering the signal trace 311;

[0056] The driving device layer 20 includes multiple driving devices, the multiple anodes 300 include multiple anode groups 300g, anode group 300g includes at least two anodes 300, the signal trace 311 includes an anode connection line L2, in anode group 300g, each anode 300 is interconnected with the others through the anode connection line L2, and anode 300 is connected to the driving device.

[0057] Specifically, the material of the pixel definition layer 401 can be a photoresist material. In a specific embodiment, in order to achieve full-color display and improve the space utilization of the display panel, the same pixel unit can be set to include multiple sub-pixels of the same color arranged at intervals. Multiple sub-pixels of the same color can be controlled by a single driving device. Therefore, multiple sub-pixels of the same color may need to be connected by traces. Under this technology, in order not to increase the number of film layers of the display panel (i.e., one metal layer is used to form the traces connecting the anode 300, and one insulating layer is used to prevent short circuits of the traces), the first conductive sub-layer 301 can be formed as the corresponding signal traces 311 and the first sub-part 312.

[0058] Specifically, the driving device described in this embodiment can be a TFT.

[0059] It should be noted that the display panel includes a pixel light-emitting layer, which includes an anode layer 30 (the anode layer 30 includes multiple anodes 300), a pixel definition layer 401, an organic light-emitting layer 402, and a cathode layer 403 disposed on the organic light-emitting layer 402, all stacked together. An opening 4011 is provided on the pixel definition layer 401 at a position corresponding to the anode 300, and the organic light-emitting layer 402 is disposed within the opening 4011. The driving device layer 20 includes multiple driving devices, which are connected to the anode 300 to drive the organic light-emitting layer 402 to emit light, thereby enabling the display panel to display.

[0060] Specifically, multiple anodes 300 are divided into multiple anode groups 300g according to actual production needs. Multiple sub-pixels corresponding to multiple anodes 300 in a single anode group 300g are controlled by a single TFT. Only one anode 300 in a single anode group 300g is directly connected to the TFT, while the other anodes 300 are indirectly connected to the TFT through anode connection line L2. That is, multiple anodes 300 in a single anode group 300g can be connected in series or in parallel, and the specific connection method is not limited.

[0061] It is understood that by connecting the anodes 300 of multiple sub-pixels of the same color through the signal trace 311 (anode connection line L2) of the first conductive sub-layer 301, and then driving them with a driving device, the display panel can achieve the connection of multiple anodes 300 without adding an additional metal layer 207 and insulating layer 206, thereby achieving full-color display of the display panel.

[0062] In one embodiment, such as Figure 3 and Figure 4 As shown, the signal trace 311 includes a bridging section 31101; the driving device layer 20 includes at least one metal layer 207, and an insulating layer 206 is stacked between each metal layer 207 and between the metal layer 207 and the anode layer 30. At least one metal layer 207 includes multiple driving signal traces L1.

[0063] A first via is provided on the insulating layer 206 between the drive signal trace L1 and the bridging segment 31101. The bridging segment 31101 passes through the first via and connects to the drive signal trace L1. Two different drive signal traces L1 are bridged by the bridging segment 31101.

[0064] Specifically, the metal layer 207 is mainly used to form drive signal traces L1, which include, but are not limited to, data signal traces, scan signal traces, VDD, VSS, data, etc.

[0065] Specifically, the drive signal trace L1 of the bridging segment 31101 can be on the same layer (e.g., ...). Figure 3 As shown), it can also be set on different layers (e.g. Figure 4 (As shown).

[0066] Specifically, the metal layer 207 can be one layer, two layers, or three layers, depending on the actual production situation. There is no limitation here. It should be noted that in this application, two adjacent metal layers 207 are separated by an insulating layer 206. The material of the insulating layer 206 includes, but is not limited to, organic polymer materials, organic polymers, inorganic materials, etc.

[0067] Specifically, the materials of the metal layer 207 include, but are not limited to, silver, magnesium, aluminum, lithium, gallium, indium and their alloys, as well as metal oxides. In other words, all materials with conductive properties are within the scope of protection of this application.

[0068] In a specific implementation, a specific example can be a large-size OLED display panel. The driving signal line L1 can be a first source-drain line and a second source-drain line set in different layers. The first source-drain line and the second source-drain line are bridged by the bridging section 31101, which can reduce the resistance of the display panel line, so as to minimize the voltage drop and make the display panel display effect better.

[0069] In one embodiment, such as Figure 5 As shown, the signal trace 311 includes a first electrode trace, and at least one of the metal layers 207 includes a second electrode trace;

[0070] A second via is provided on the insulating layer 206 between the second electrode trace and the first electrode trace, and the first electrode trace is connected to the second electrode trace through the second via.

[0071] Specifically, the electrode traces include, but are not limited to, gate 204 or source / drain 205, forming a double-gate or double-layer source / drain trace structure to reduce the voltage drop of the metal traces, making the display panel display image more uniform and the display effect better.

[0072] Specifically, such as Figure 5 As shown, it has a structure where the first electrode trace is the second source M2 and the second electrode trace is the first source M1.

[0073] Specifically, the first electrode trace can also be a second gate, and the second electrode trace can be a structure of the first gate.

[0074] In one embodiment, such as Figure 2 As shown, the second conductive sublayer 302 includes a first material layer and a second material layer disposed on the first material layer. The second sub-part 322 includes a reflective anode 3221 and a transparent anode 3222 disposed on the reflective anode 3221. The first material layer includes the reflective anode 3221, and the second material layer includes the transparent anode 3222.

[0075] Specifically, the first material layer includes a metal or alloy, specifically Ag; the second material layer can be a high work function material, specifically with a work function range of 4.0 eV or higher, such as ITO, whose work function range is 4.6 eV to 5.1 eV.

[0076] It should be noted that materials with high work functions can improve the electron mobility between the anode 300 and the organic light-emitting layer 402.

[0077] It is understandable that by setting the anode 300 of the anode layer 30 to a three-layer structure, with the first material layer being metal and the second material layer and the first conductive electron layer 301 being indium tin oxide, the electron transfer efficiency between the anode 300 and the organic light-emitting layer 402 can be improved, and the metal of the intermediate layer can be prevented from being oxidized.

[0078] In one embodiment, such as Figure 1 and Figure 7c As shown, in the direction perpendicular to the substrate 10, the projections of the reflective anode 3221 and the transparent anode 3222 coincide.

[0079] Specifically, the overlapping projections of the reflective anode 3221 and the transparent anode 3222 mean that the reflective anode 3221 and the transparent anode 3222 can be formed using the same photomask. The structure in which the projections of the reflective anode 3221 and the transparent anode 3222 do not overlap due to deviations during the manufacturing process is also within the scope of protection of this application.

[0080] It is understandable that by setting the projection of the reflective anode 3221 to coincide with that of the transparent anode 3222, the manufacturing process of the anode 300 can be simplified, saving one photomask. That is, only two photomasks are needed to complete the three-layer anode 300 structure and signal wiring 311. At the same time, a metal layer 207 and an insulating layer 206 are saved, which greatly reduces the thickness of the display panel.

[0081] In one embodiment, the material of the second material layer includes indium tin oxide, and the first conductive layer 301 and the second material layer are made of the same material.

[0082] Specifically, using a high work function material for the second material layer is beneficial for improving the electron transfer efficiency between the anode 300 and the organic light-emitting layer 402.

[0083] It is understandable that by setting the anode 300 of the anode layer 30 as a three-layer structure, wherein the first material layer is made of metal, and the second material layer and the first conductive electron layer 301 are made of indium tin oxide, the electron transfer efficiency between the anode 300 and the organic light-emitting layer 402 can be improved, and the metal of the intermediate layer can be prevented from being oxidized.

[0084] This application also provides a method for manufacturing a display panel, such as... Figure 6 As shown, it includes the following steps:

[0085] S1. A substrate 10 is provided, and a driving device layer 20 is formed on the substrate 10;

[0086] S2. An anode layer 30 is formed on the driving device layer 20. The anode layer 30 includes a plurality of anodes 300 and signal traces 311. The anodes 300 include a first sub-part 312 disposed on the driving device layer 20 and a second sub-part 322 disposed on the first sub-part 312. The formation of the anode layer 30 includes a first conductive sub-layer 301 formed on the driving device layer 20 and a second conductive sub-layer 302 formed on the first conductive sub-layer 301. The first conductive sub-layer 301 includes the first sub-part 312 and the signal traces 311, and the second conductive sub-layer 302 includes the second sub-part 322.

[0087] Specifically, the materials and structures of the substrate 10 and the driving device layer 20 are as shown in the above embodiments of the substrate 10 and structure, and will not be repeated here.

[0088] Specifically, taking the first conductive sublayer 301 as ITO and the second conductive sublayer 302 as including a first material layer and a second material layer, wherein the first material layer is metallic silver and the second material layer is ITO, the formation of the anode layer 30 on the second driving device layer 20 includes:

[0089] The first conductive sublayer 301, the first material layer and the second material layer are sequentially coated on the driving device layer 20, and photoresist PR is coated at the position corresponding to the formation of the second sub-part 322.

[0090] Then, the first material layer and the second material layer are sequentially photolithographically etched and etched, and then the photoresist PR is stripped off to obtain the second sub-part 322.

[0091] Photoresist (PR) is used to perform photolithography, etching, and photoresist stripping operations on the first electron layer to obtain signal trace 311 and first sub-section 312.

[0092] It is understood that by setting the anode layer 30 of the display panel of the present invention to include a plurality of anodes 300 and signal traces 311, the anode 300 includes a first sub-part 312 disposed on the driving device layer 20 and a second sub-part 322 disposed on the first sub-part 312, the anode layer 30 includes a first conductive sub-layer 301 disposed on the driving device layer 20 and a second conductive sub-layer 302 disposed on the first conductive sub-layer 301, the first conductive sub-layer 301 includes a first sub-part 312 and signal traces 311, and the second conductive sub-layer 302 includes a second sub-part 322, so that the first conductive sub-layer 301 forming the anode 300 can be used not only as part of the anode 300, but also as other signal traces 311 in the display panel, thereby improving the material utilization rate in the panel manufacturing process, reducing the number of metal trace layers in the display panel, reducing production costs, and enhancing market competitiveness.

[0093] In a specific production process, such as Figures 7a-7e As shown,

[0094] like Figure 7a A substrate 10 and a driving device layer 20 are provided;

[0095] like Figure 7b The first conductive sublayer 301, the first material layer and the second material layer are sequentially coated on the driving device layer 20, and photoresist PR is coated at the position corresponding to the formation of the second sub-part 322.

[0096] like Figure 7c The first material layer and the second material layer are sequentially photolithographically etched and then the photoresist PR is stripped off to obtain the second sub-part 322.

[0097] like Figure 7d Photoresist PR is applied at the positions corresponding to the formation of the first sub-part 312 and the signal trace 311, and the photoresist PR covers part of the first conductive layer and all of the second sub-part 322.

[0098] like Figure 7e Photoresist PR is used to perform photolithography, etching and photoresist PR stripping operations on the first electron layer to obtain signal trace 311 and first sub-section 312.

[0099] This application also provides a mobile terminal, including a display panel and a terminal body as described in any of the above embodiments, wherein the terminal body and the display panel are integrated into one unit.

[0100] In summary, by setting the anode layer 30 of the display panel of the present invention to include multiple anodes 300 and signal traces 311, the anode 300 includes a first sub-part 312 disposed on the driving device layer 20 and a second sub-part 322 disposed on the first sub-part 312, the anode layer 30 includes a first conductive sub-layer 301 disposed on the driving device layer 20 and a second conductive sub-layer 302 disposed on the first conductive sub-layer 301, the first conductive sub-layer 301 includes a first sub-part 312 and signal traces 311, and the second conductive sub-layer 302 includes a second sub-part 322, so that the first conductive sub-layer 301 forming the anode 300 can be used not only as part of the anode 300, but also as other signal traces 311 in the display panel, thereby improving the material utilization rate in the panel manufacturing process, reducing the number of metal trace layers in the display panel, reducing production costs, and enhancing market competitiveness.

[0101] The above provides a detailed description of a display panel, a method for manufacturing the display panel, and a mobile terminal provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display panel, characterized in that, include: Substrate, and driving device layer disposed on the substrate; An anode layer is disposed on the driving device layer and includes multiple anodes and signal traces. The anode includes a first sub-part disposed on the driving device layer and a second sub-part disposed on the first sub-part. The anode layer includes a first conductive sublayer disposed on the driving device layer and a second conductive sublayer disposed on the first conductive sublayer. The first conductive sublayer includes a first sub-section and the signal trace. The signal trace includes an anode connection line. Each anode is interconnected through the anode connection line. The second conductive sublayer includes a second sub-section.

2. The display panel as described in claim 1, characterized in that, The display panel further includes a pixel definition layer disposed on the anode layer, the pixel definition layer having an opening corresponding to the anode, and the pixel definition layer covering the signal traces; The driving device layer includes multiple driving devices, the multiple anodes include multiple anode groups, one anode group includes at least two anodes, and one anode is connected to the driving device.

3. The display panel as described in claim 1, characterized in that, The signal traces include bridging sections; the driving device layer includes at least one metal layer, and insulating layers are stacked between each metal layer and between the metal layer and the anode layer, and at least one metal layer includes multiple driving signal traces; A first via is provided on the insulating layer between the drive signal trace and the bridging segment. The bridging segment passes through the first via and connects to the drive signal trace. Two different drive signal traces are bridged by the bridging segment.

4. The display panel as described in claim 3, characterized in that, The signal trace includes a first electrode trace, and at least one of the metal layers includes a second electrode trace; A second via is provided on the insulating layer between the second electrode trace and the first electrode trace, and the first electrode trace is connected to the second electrode trace through the second via.

5. The display panel as described in claim 1, characterized in that, The second conductive sublayer includes a first material layer and a second material layer disposed on the first material layer. The second sublayer includes a reflective anode and a transparent anode disposed on the reflective anode. The first material layer includes the reflective anode, and the second material layer includes the transparent anode.

6. The display panel as described in claim 5, characterized in that, In the direction perpendicular to the substrate, the projection of the reflective anode coincides with that of the transparent anode.

7. The display panel as described in claim 5, characterized in that, The material of the second material layer includes indium tin oxide.

8. The display panel as described in claim 7, characterized in that, The first conductive layer and the second material layer are made of the same material.

9. A method for manufacturing a display panel, characterized in that, Includes the following steps: A substrate is provided on which a driving device layer is formed; An anode layer is formed on the driving device layer. The anode layer includes a plurality of anodes and signal traces. The anodes include a first sub-part disposed on the driving device layer and a second sub-part disposed on the first sub-part. The formation of the anode layer includes a first conductive sub-layer formed on the driving device layer and a second conductive sub-layer formed on the first conductive sub-layer. The first conductive sub-layer includes a first sub-part and the signal traces. The signal traces include anode connection lines. Each anode is interconnected through the anode connection lines. The second conductive sub-layer includes the second sub-part.

10. A mobile terminal, characterized in that, It includes a display panel and a terminal body as described in any one of claims 1 to 8, wherein the terminal body and the display panel are integrated into one unit.

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