Display panel and display device

Abstract

The present application discloses a display panel and a display device. The display panel includes a substrate, a first light-emitting unit, and a first wiring layer. The substrate includes a power line. The first light-emitting unit is disposed on one side of the substrate and includes a stacked first anode layer, a first light-emitting layer, and a first cathode layer. The first anode layer includes multiple first anodes spaced apart on the substrate. The first light-emitting layer includes multiple first sub-light-emitting layers, each first sub-light-emitting layer is disposed on a first anode, and the first cathode layer covers the multiple first sub-light-emitting layers. The first wiring layer includes multiple first wirings, each of which is electrically connected to the power line. Each first anode is disposed corresponding to a first wiring. The first anode is electrically connected to the power line via the corresponding first wiring. Any first wiring is configured to disconnect the corresponding first anode from the power line when cut. This application can improve display effects.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] Organic Light Emitting Diode (OLED) display panels have the advantages of high luminous efficiency, high color saturation, low power consumption, etc., and have been widely used.

[0003] Organic light-emitting diodes (OLEDs) are current-generating light-emitting devices consisting of an anode, an organic light-emitting material layer, and a cathode. If foreign matter is present on the anode surface of an OLED, it can cause a short circuit between the cathode and anode, causing the corresponding OLED to appear as a dark spot on the display panel. If the OLED causing the dark spot is a green-emitting device, it will appear as a reddish-purple dot on the display panel, affecting the visual quality.

[0004] Therefore, it is necessary to propose a new technical solution to solve the above technical problems. Summary of the Invention

[0005] The purpose of this application is to provide a display panel and a display device to improve the display effect.

[0006] To solve the above problems, the technical solutions of this application are as follows:

[0007] In a first aspect, the present application proposes a display panel, comprising:

[0008] a base plate, including power supply lines;

[0009] a first light-emitting unit disposed on one side of the substrate, the first light-emitting unit comprising a stacked first anode layer, a first light-emitting layer, and a first cathode layer, the first anode layer comprising a plurality of first anodes spaced apart on the substrate, the first light-emitting layer comprising a plurality of first sub-light-emitting layers, one first sub-light-emitting layer being disposed on one first anode, and the first cathode layer covering the plurality of first sub-light-emitting layers;

[0010] The first line layer includes multiple first routing lines, each of which is electrically connected to the power line. One first anode is provided corresponding to one first routing line, and the first anode is electrically connected to the power line through the corresponding first routing line. Any one of the first routing lines is configured to disconnect the corresponding first anode from the power line after being cut off.

[0011] In one embodiment of the present application, the first line layer and the first anode layer are provided in the same layer;

[0012] The substrate further includes a semiconductor layer, the semiconductor layer includes a second trace, and the second trace is electrically connected to the power line;

[0013] The first wiring is electrically connected to the power line through the second wiring.

[0014] In one embodiment of the present application, the first wiring layer further includes a third wiring, and the third wiring is connected to the plurality of the first wirings;

[0015] The first wiring is electrically connected to the second wiring through the third wiring.

[0016] In one embodiment of the present application, the substrate further includes a first transfer metal layer, and the first transfer metal layer is located between the first line layer and the semiconductor layer;

[0017] The third wiring is electrically connected to the second wiring through the first transfer metal layer.

[0018] In one embodiment of the present application, the first wiring and the first anode are made of the same material.

[0019] In one embodiment of the present application, the first anode layer includes two first anodes;

[0020] The second trace includes:

[0021] a first subsection electrically connected to the power line; and

[0022] a second subsegment connected to the first subsegment, the second subsegment being electrically connected to the first trace;

[0023] In a plan view of the display panel, the first subsegment overlaps with one of the first anodes, and the second subsegment overlaps with another of the first anodes.

[0024] In one embodiment of the present application, the display panel further includes a semiconductor layer, the semiconductor layer includes a fourth wiring, and the fourth wiring is electrically connected to the power line;

[0025] The first wiring layer is provided in the same layer as the semiconductor layer, one fourth wiring is connected to a plurality of the first wirings, and the first wiring is electrically connected to the power line through the fourth wiring.

[0026] In one embodiment of the present application, the display panel further includes a second line layer, which is arranged in the same layer as the first anode, and the second line layer includes multiple fifth lines, one of the fifth lines is connected to one of the first anodes, and one of the fifth lines is electrically connected to one of the first lines.

[0027] In one embodiment of the present application, the material of the fifth wiring is the same as that of the first anode, and the material of the first wiring is the same as that of the semiconductor layer.

[0028] In one embodiment of the present application, the substrate further includes a second transfer metal layer, and the second transfer metal layer is located between the semiconductor layer and the second line layer;

[0029] The fifth wiring is electrically connected to the first wiring through the second transfer metal layer.

[0030] In one embodiment of the present application, the first anode layer includes two first anodes;

[0031] The fourth trace includes:

[0032] a third subsection electrically connected to the power line; and

[0033] a fourth subsegment connected to the third subsegment, wherein one fourth subsegment is respectively connected to a plurality of the first traces;

[0034] In a plan view of the display panel, the third subsegment overlaps with one of the first anodes, and the fourth subsegment overlaps with another of the first anodes.

[0035] In one embodiment of the present application, the first light-emitting unit further includes a first pixel driving circuit, the first pixel driving circuit is electrically connected to the plurality of first wirings respectively, and the power line is electrically connected to the first pixel driving circuit.

[0036] In one embodiment of the present application, the display panel further includes a second light-emitting unit and a third light-emitting unit, the light-emitting color of the first light-emitting unit is a first color, the light-emitting color of the second light-emitting unit is a second color, and the light-emitting color of the first light-emitting unit is a third color;

[0037] One first light emitting unit, one second light emitting unit, and one third light emitting unit form a repeating unit, and a plurality of the repeating units are arranged in an array on the substrate.

[0038] In one embodiment of the present application, in one of the repeating units, the first light-emitting unit and the second light-emitting unit are both located on the same side of the third light-emitting unit;

[0039] Wherein, a plurality of the first anodes are arranged at intervals on the same side of the third light emitting unit.

[0040] In the second aspect, the present application proposes a display device, including a display panel, the display panel including a substrate, a first light-emitting unit and a first line layer, the substrate including a power line; the first light-emitting unit is arranged on one side of the substrate, the first light-emitting unit includes a first anode layer, a first light-emitting layer and a first cathode layer arranged in a stacked manner, the first anode layer includes a plurality of first anodes arranged at intervals on the substrate, the first light-emitting layer includes a plurality of first sub-light-emitting layers, one first sub-light-emitting layer is arranged on one first anode, and the first cathode layer covers the plurality of first sub-light-emitting layers; the first line layer includes a plurality of first traces, and the plurality of first traces are electrically connected to the power line respectively, one first anode is arranged corresponding to one first trace, the first anode is electrically connected to the power line through the corresponding first trace, and any one of the first traces is configured to disconnect the corresponding first anode from the power line after being cut off.

[0041] In the present application, multiple first anodes are provided in the first light-emitting unit, and a first wiring is electrically connected to a first anode, thereby achieving electrical connection of the power line to the multiple first anodes through the multiple first wirings. When a foreign object is present on the surface of a first anode in the first light-emitting unit, causing the first anode to short-circuit with the first cathode layer, the first light-emitting unit appears as a dark spot on the display panel. In this case, the first wiring electrically connected to the first anode with the foreign object on the upper surface can be cut off, thereby disconnecting the first anode with the foreign object on the upper surface from the power line, thereby solving the dark spot problem caused by the short-circuit between the first anode with the foreign object on the upper surface and the first cathode layer, allowing the first light-emitting unit that originally appeared as a dark spot to emit light normally again, thereby improving the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a schematic diagram of an embodiment of a display panel of the present application;

[0043] Figure 2 is a schematic diagram of an embodiment of a display panel of the present application;

[0044] Figure 3 is a schematic diagram of an embodiment of a first light-emitting unit of the present application;

[0045] Figure 4 is a schematic diagram of a first embodiment of a display panel of the present application;

[0046] Figure 5 yes Figure 4 A schematic diagram of a first line layer and a first anode layer in a first embodiment of a display panel is shown;

[0047] Figure 6 yes Figure 4A schematic diagram of the first line layer, the first anode layer, the semiconductor layer, and the first transfer metal layer in the first embodiment of the display panel;

[0048] Figure 7 is a cross-sectional schematic diagram of a first embodiment of a display panel of the present application;

[0049] Figure 8 is a schematic diagram of a second embodiment of a display panel of the present application;

[0050] Figure 9 yes Figure 8 A schematic diagram of a first anode layer, a second line layer, a second transfer metal layer, a first line layer, and a semiconductor layer in a second embodiment of a display panel is shown;

[0051] Figure 10 yes Figure 8 A schematic diagram of a first line layer and a semiconductor layer in a second embodiment of a display panel is shown;

[0052] Figure 11 yes Figure 8 A schematic diagram of a first anode layer and a second line layer in a second embodiment of a display panel is shown;

[0053] Figure 12 is a cross-sectional schematic diagram of a second embodiment of a display panel of the present application. DETAILED DESCRIPTION

[0054] The meanings of the terms used in this specification and claims correspond to those commonly understood by persons of ordinary skill in the art to which this application belongs. The terms used in this specification and claims are intended solely to facilitate the description and understanding of this application and are not intended to limit this application to the narrow interpretations of the specific terms used in the specification and claims.

[0055] This application proposes a display device. The display device can be a tablet computer, an e-reader, an electronic display screen, a laptop computer, a mobile phone, an augmented reality (AR) or virtual reality (VR) device, a media player, a wearable device, a digital camera, an in-car navigation system, etc. The display device includes a display panel 100.

[0056] The present application provides a display panel 100. The display panel 100 may be an organic light emitting diode (OLED) display panel 100, a micro light emitting diode (MicroLED) display panel 100, or a sub-millimeter light emitting diode (Mini LED) display panel 100.

[0057] To avoid redundancy, the embodiments of the present application are described by taking the organic light emitting diode display panel 100 as an example.

[0058] See also Figure 1 The display panel 100 includes a substrate 10, a first light-emitting unit 20, and a first wiring layer 30. The substrate 10 includes a power line 11. The first light-emitting unit 20 is disposed on one side of the substrate 10. The first light-emitting unit 20 includes a first anode layer 21, a first light-emitting layer 22, and a first cathode layer. The first anode layer 21 includes a plurality of first anodes 211 spaced apart on the substrate 10. The first light-emitting layer 22 includes a plurality of first sub-light-emitting layers 221. Each first sub-light-emitting layer 221 is disposed on each first anode 211. The first cathode layer covers the plurality of first sub-light-emitting layers 221. The first wiring layer 30 includes a plurality of first wirings 31. The plurality of first wirings 31 are electrically connected to the power line 11, respectively. Each first anode 211 is disposed corresponding to a first wiring 31. The first anode 211 is electrically connected to the power line 11 through the corresponding first wiring 31. Any first wiring 31 is configured so that, when cut, the corresponding first anode 211 is disconnected from the power line 11.

[0059] In this embodiment, multiple first anodes 211 are provided in the first light-emitting unit 20, and a first trace 31 is electrically connected to each first anode 211, thereby achieving electrical connection between the power line 11 and the multiple first anodes 211 through the multiple first traces 31. When a foreign object is present on the surface of a first anode 211 in the first light-emitting unit 20, causing the first anode 211 to short-circuit with the first cathode layer, the first light-emitting unit 20 appears as a dark spot on the display panel 100. In this case, the first trace 31 electrically connected to the first anode 211 with the foreign object on its upper surface can be cut off, thereby disconnecting the first anode 211 with the foreign object on its upper surface from the power line 11. This solves the dark spot problem caused by the short-circuit between the first anode 211 with the foreign object on its upper surface and the first cathode layer, allowing the first light-emitting unit 20 that originally appeared as a dark spot to emit light normally again, thereby improving the display effect.

[0060] In this embodiment, the first trace 31 may be cut by laser cutting.

[0061] Optional, see Figure 2 The display panel 100 further includes a second light emitting unit 80 and a third light emitting unit 90. The light emitting color of the first light emitting unit 20 is the first color. The light emitting color of the second light emitting unit 80 is the second color. The light emitting color of the first light emitting unit 20 is the third color.

[0062] One first light emitting unit 20 , one second light emitting unit 80 , and one third light emitting unit 90 form a repeating unit P. A plurality of repeating units P are arranged in an array on the substrate 10 .

[0063] The first color may be one of red, green, and blue, the second color may be another of red, green, and blue, and the third color may be the remaining one of red, green, and blue.

[0064] In this embodiment, the first color is green, the second color is red, and the third color is blue. This color combination solves the problem of reddish-purple spots appearing on the display panel 100 when the organic light-emitting diode (OLED) is a green light-emitting device, thereby improving the display quality. The specific solution is as follows: When foreign matter is present on the upper surface of a first anode 211, causing the first anode 211 to short-circuit with the first cathode layer, the corresponding first light-emitting unit 20 of the repeating unit P will appear as a dark spot. In this case, the first trace 31 connected to the first anode 211 with the dark spot can be disconnected, thereby allowing the first light-emitting unit 20 to emit normal light.

[0065] Optionally, the structures of the second light-emitting unit 80 and the third light-emitting unit 90 can be configured with reference to the first light-emitting unit 20. Taking the second light-emitting unit 80 as an example, the second light-emitting unit 80 includes a plurality of second anodes, a second sub-light-emitting layer disposed on the second anodes, and a second cathode layer disposed on the second sub-light-emitting layer. The second anodes are electrically connected to the power line 11 via corresponding first traces 31.

[0066] When there is foreign matter on the upper surface of a second anode, causing the second anode to be short-circuited with the second cathode layer, the second light-emitting unit 80 of the corresponding repeating unit P appears as a dark spot. At this time, the first trace 31 connected to the second anode where the dark spot appears can be cut off, so that the second light-emitting unit 80 can emit light normally.

[0067] Taking the third light emitting unit 90 as an example, the third light emitting unit 90 includes a plurality of third anodes and a third sub-light emitting layer disposed on the third anodes. The third anodes are electrically connected to the power line 11 through corresponding first traces 31 .

[0068] When there is foreign matter on the upper surface of a third anode, causing the third anode to be short-circuited with the third cathode layer, the third light-emitting unit 90 of the corresponding repeating unit P appears as a dark spot. At this time, the first trace 31 connected to the third anode corresponding to the dark spot can be cut off, so that the third light-emitting unit 90 can emit light normally.

[0069] The first cathode layer, the second cathode layer and the third cathode layer can be integrally formed.

[0070] Optional, see Figure 3 In a repeating unit P, the first light-emitting unit 20 and the second light-emitting unit 80 are both located on the same side of the third light-emitting unit 90 .

[0071] The plurality of first anodes 211 are spaced apart and arranged on the same side of the third light emitting unit 90 .

[0072] In this embodiment, the resolution of the display panel 100 can be improved by properly arranging the positions of the first light-emitting unit 20, the second light-emitting unit 80, and the third light-emitting unit 90. At the same time, it can also avoid accidentally cutting off the power supply lines of other light-emitting units during the process of cutting off the first line 31, thereby reducing the incidence of accidental cutting.

[0073] Optionally, the first light emitting unit 20 further includes a first pixel driving circuit 23. The first pixel driving circuit 23 is electrically connected to the plurality of first traces 31. The power line 11 is electrically connected to the first pixel driving circuit 23.

[0074] In this embodiment, the first pixel driver circuit 23 is a 7T1C driver circuit. The 7T1C driver circuit includes seven transistors and one capacitor. The power line 11 is electrically connected to the first anode 211 via the first pixel driver circuit 23 and the first trace 31. When a first light-emitting unit 20 in a repeating unit P appears as a dark spot, the first trace 31 between the first anode 211 and the first pixel driver circuit 23 corresponding to the dark spot can be disconnected, thereby allowing the first light-emitting unit 20 to emit normally.

[0075] In the first embodiment of the present application:

[0076] Optional, see Figure 4 The first wiring layer 30 is provided in the same layer as the first anode layer 21. The substrate 10 further includes a semiconductor layer 40. The semiconductor layer 40 includes a second wiring 41. The second wiring 41 is electrically connected to the power line 11. The first wiring 31 is electrically connected to the power line 11 through the second wiring 41.

[0077] It should be understood that at least one insulating layer is provided between the semiconductor layer 40 and the first wiring layer 30. The insulating layer is made of at least one of silicon oxide, silicon nitride, and silicon oxynitride. A via hole can be provided in the insulating layer, through which the first wiring 31 passes to connect to the second wiring 41.

[0078] In this example, see Figure 5 Because the first wiring layer 30 and the first anode layer 21 are provided on the same layer, the first trace 31 is provided on the same layer as the first anode 211 and is directly connected to the first anode 211. If foreign matter is present on the upper surface of a first anode 211, causing the first anode 211 to short-circuit with the first cathode layer, the corresponding first light-emitting unit 20 will appear as a dark spot. In this case, the first trace 31 connected to the shorted first anode 211 can be cut off by laser cutting, thereby allowing the first light-emitting unit 20 to emit normally.

[0079] Because the first wiring layer 30 and the first anode layer 21 are provided on the same layer, when laser cutting is performed to sever the first wiring 31, the laser can be directed from the light-emitting surface of the display panel 100 to sever the first wiring 31. The light-emitting surface of the display panel 100, on the side of the first anode layer 21 facing away from the substrate 10, is located on the same layer. By controlling the laser energy, excessive laser energy is avoided, which could result in severing the first pixel driver circuit 23, power line 11, and second wiring 41 connected to the normally luminous first anode 211 disposed within the substrate 10. This improves the success rate of laser cutting repairs and prevents other faults from causing the display panel 100 to not emit light normally.

[0080] Optionally, the first wiring 31 and the first anode 211 are made of the same material.

[0081] In this embodiment, since the first wiring 31 and the first anode 211 are provided in the same layer and are directly connected to the first anode 211, the first wiring 31 and the first anode 211 can be made of the same material, and the first wiring 31 and the first anode 211 can be integrally formed during the manufacturing process. This allows the two processes of forming the first anode 211 and the first wiring 31 to be combined into one process, thereby reducing the cost of manufacturing the display panel 100 and improving production efficiency.

[0082] Optionally, the first wiring layer 30 further includes a third wiring 32. The third wiring 32 is connected to the plurality of first wirings 31. The first wiring 31 is electrically connected to the second wiring 41 through the third wiring 32.

[0083] Since a via hole must be provided in the insulating layer to connect the first wiring 31 with the second wiring 41, multiple via holes must be provided in the insulating layer to connect multiple first wirings 31 with the second wiring 41, which complicates the manufacturing process. Therefore, in this embodiment, a third wiring 32 is provided to connect multiple first wirings 31 with the same third wiring 32. Only one via hole needs to be provided in the insulating layer to connect the third wiring 32 with the second wiring 41. This simplifies the manufacturing process of the display panel 100, improves production efficiency, and reduces production costs.

[0084] Optional, see Figure 6 The substrate 10 further includes a first transfer metal layer 50 . The first transfer metal layer 50 is located between the first line layer 30 and the semiconductor layer 40 .

[0085] The third trace 32 is electrically connected to the second trace 41 through the first transfer metal layer 50 .

[0086] When too many insulating layers or too thick an insulating layer is used to meet signal shielding requirements, the via connecting first trace 31 and second trace 41 becomes deeper. This can lead to stress concentration in traces within deep vias, which can lead to cracks. Furthermore, designing deep vias is difficult to achieve in terms of manufacturing process. Therefore, when too many insulating layers or too thick an insulating layer is used, a first transition metal layer 50 is incorporated into the insulating layer to improve trace stability and prevent cracks.

[0087] Optional, see Figure 7 A first insulating layer S1, a second insulating layer S2, a third insulating layer S3, and a planar layer S4 are sequentially provided on the substrate S0. The first anode 211, the first trace 31, and the third trace 32 are provided on the side of the planar layer S4 away from the substrate S0. The first transfer metal layer 50 includes a first sublayer 51 and a second sublayer 52. The first sublayer 51 is provided between the planar layer S4 and the third insulating layer S3. The second sublayer 52 and the power line 11 are provided between the third insulating layer S3 and the second insulating layer S2. The semiconductor layer 40 is provided between the second insulating layer S2 and the first insulating layer S1. The switching layer M1 is provided between the substrate S0 and the first insulating layer S1.

[0088] In the circuit where power line 11 supplies power to first anode 211, power line 11 passes through second insulating layer S2 and first insulating layer S1 to connect to switching layer M1. Second trace 41 of semiconductor layer 40 passes through first insulating layer S1 to connect to switching layer M1. Second sublayer 52 passes through second insulating layer S2 to connect to second trace 41. First sublayer 51 passes through third insulating layer S3 to connect to second sublayer 52. Third trace 32 passes through planar layer S4 to connect to first sublayer 51.

[0089] It should be noted that Figure 7 Only the connection relationship between the film layers is shown, which does not mean that the film layers overlap in the top view.

[0090] When a first anode 211 and a first cathode layer are short-circuited due to foreign matter, please refer to Figure 7 , it is only necessary to cut off the corresponding first wiring 31 between the first anode 211 and the third wiring 32 to disconnect the power line 11 from the first anode 211 without affecting the normal light emission of other first sub-light-emitting layers 221.

[0091] Optionally, the first anode layer 21 includes two first anodes 211. The second trace 41 includes a first subsegment 41a and a second subsegment 41b. The first subsegment 41a is electrically connected to the power line 11. The second subsegment 41b is connected to the first subsegment 41a, and the second subsegment 41b is electrically connected to the first trace 31.

[0092] See also Figure 6 In a plan view of the display panel 100 , the first subsegment 41 a overlaps one first anode 211 , and the second subsegment 41 b overlaps the other first anode 211 .

[0093] In this embodiment, by overlapping the first subsegment 41a and the second subsegment 41b with the two first anodes 211, respectively, the footprint of the first light-emitting unit 20 can be reduced, thereby improving the resolution of the display panel 100. Furthermore, the overlapping area between the second trace 41 and other traces within the display panel 100 can be reduced, thereby reducing crosstalk from the second trace 41 to other traces and improving the display quality of the display panel 100.

[0094] In the second embodiment of the present application:

[0095] In order to avoid redundancy, the second embodiment of the present application will describe parts that are different from the first embodiment of the present application.

[0096] Optional, see Figure 8The display panel 100 further includes a semiconductor layer 40. The semiconductor layer 40 includes a fourth trace 42. The fourth trace 42 is electrically connected to the power line 11. The first trace layer 30 is provided on the same layer as the semiconductor layer 40. One fourth trace 42 is connected to multiple first traces 31. The first traces 31 are electrically connected to the power line 11 via the fourth trace 42.

[0097] In this example, see Figure 9 Because the first wiring layer 30 and the semiconductor layer 40 are provided on the same layer, the first trace 31 and the fourth trace 42 are provided on the same layer, and the first trace 31 is electrically connected to the first anode 211. If foreign matter is present on the upper surface of a first anode 211, causing the first anode 211 to short-circuit with the first cathode layer, the corresponding first light-emitting unit 20 will appear as a dark spot. In this case, the first trace 31 electrically connected to the shorted first anode 211 can be severed by laser cutting, thereby allowing the first light-emitting unit 20 to emit normally.

[0098] See also Figure 10 Because the first wiring layer 30 and the semiconductor layer 40 are provided in the same layer, when the first trace 31 is cut by laser cutting, the laser can be injected from the non-light-emitting surface of the display panel 100 to cut the first trace 31. The non-light-emitting surface of the display panel 100 is the side of the first anode layer 21 close to the substrate 10. By controlling the energy of the laser, it is prevented that the laser energy is too high, which would cause the first pixel driving circuit 23, the power line 11, and the fifth trace 61 connected to the normally luminous first anode 211 disposed in the substrate 10 to be cut. This improves the success rate of laser cutting repairs and avoids other faults that would cause the display panel 100 to not emit light normally.

[0099] Optionally, the material of the first wiring 31 is the same as that of the semiconductor layer 40 .

[0100] In this embodiment, since the first trace 31 and the semiconductor layer 40 are provided in the same layer and are directly connected to the fourth trace 42, the first trace 31 and the fourth trace 42 can be made of the same material and can be integrally formed during the manufacturing process. This allows the two processes of forming the fourth trace 42 and the first trace 31 to be combined into one process, thereby reducing the cost of manufacturing the display panel 100 and improving production efficiency.

[0101] Optional, see Figure 11 The display panel 100 further includes a second wiring layer 60. The second wiring layer 60 is provided in the same layer as the first anode 211. The second wiring layer 60 includes a plurality of fifth wirings 61. Each fifth wiring 61 is connected to one first anode 211. Each fifth wiring 61 is electrically connected to one first wiring 31.

[0102] In this embodiment, to improve the flatness of the film layer above the first anode 211, it is not possible to directly provide a via hole on the lower surface of the first anode 211 so that the first anode 211 passes through the via hole to connect to the first trace 31. Therefore, a second trace layer 60 is provided on the same layer as the first anode layer 21, so that the fifth trace 61 is directly connected to the first anode 211. The first trace 31 passes through the insulating layer and planarization layer S4 below and connects to the first trace 31, thereby improving the flatness of the film layer above the first anode 211 and enhancing luminous efficiency.

[0103] Optionally, the material of the fifth wiring 61 is the same as that of the first anode 211 .

[0104] In this embodiment, since the second wiring layer 60 and the first anode layer 21 are provided in the same layer, and the fifth wiring 61 is directly connected to the first anode 211, the fifth wiring 61 and the first anode 211 can be made of the same material, and the fifth wiring 61 and the first anode 211 can be integrally formed during the manufacturing process. This allows the two processes of forming the fifth wiring 61 and the first anode 211 to be combined into one process, thereby reducing the cost of manufacturing the display panel 100 and improving production efficiency.

[0105] Optionally, the substrate 10 further includes a second transfer metal layer 70. The second transfer metal layer 70 is located between the semiconductor layer 40 and the second wiring layer 60. The fifth wiring 61 is electrically connected to the first wiring 31 through the second transfer metal layer 70.

[0106] When too many insulating layers or too thick an insulating layer is used to meet signal shielding requirements, the via connecting fifth trace 61 and first trace 31 becomes deep. This can lead to stress concentration in traces within deep vias, which can lead to cracks. Furthermore, designing deep vias is difficult to achieve in terms of manufacturing process. Therefore, when too many insulating layers or too thick an insulating layer is used, a second transfer metal layer 70 is incorporated into the insulating layer to improve trace stability and prevent cracks.

[0107] Optional, see Figure 12 A first insulating layer S1, a second insulating layer S2, a third insulating layer S3, and a planar layer S4 are sequentially provided on the substrate S0. The first anode 211 and the fifth trace 61 are provided on the side of the planar layer S4 away from the substrate S0. The second transfer metal layer 70 includes a third sublayer 71 and a fourth sublayer 72. The third sublayer 71 is provided between the planar layer S4 and the third insulating layer S3. The fourth sublayer 72 and the power line 11 are provided between the third insulating layer S3 and the second insulating layer S2. The semiconductor layer 40 and the first trace 31 are provided between the second insulating layer S2 and the first insulating layer S1. The switching layer M1 is provided between the substrate S0 and the first insulating layer S1.

[0108] In the circuit where power line 11 supplies power to first anode 211, power line 11 passes through second insulating layer S2 and first insulating layer S1 to connect to switching layer M1. Fourth trace 42 of semiconductor layer 40 passes through first insulating layer S1 to connect to switching layer M1, and first trace 31 is directly connected to fourth trace 42. Fourth sublayer 72 passes through second insulating layer S2 to connect to first trace 31. Third sublayer 71 passes through third insulating layer S3 to connect to fourth sublayer 72. Fifth trace 61 passes through planar layer S4 to connect to third sublayer 71, and first anode 211 is directly connected to fifth trace 61.

[0109] It should be noted that Figure 12 Only the connection relationship between the film layers is shown, which does not mean that the film layers overlap in the top view.

[0110] When a first anode 211 and a first cathode layer are short-circuited due to foreign matter, please refer to Figure 12 , it is only necessary to cut off the corresponding first trace 31 connected to the fourth trace 42 to disconnect the power line 11 from the first anode 211 without affecting the normal light emission of other first sub-light-emitting layers 221.

[0111] Optionally, the first anode layer 21 includes two first anodes 211. The fourth trace 42 includes a third subsegment 43a and a fourth subsegment 43b. The third subsegment 43a is electrically connected to the power line 11. The fourth subsegment 43b is connected to the third subsegment 43a. One fourth subsegment 43b is respectively connected to the plurality of first traces 31.

[0112] See also Figure 9 In a plan view of the display panel 100 , the third subsegment 43 a overlaps one first anode 211 , and the fourth subsegment 43 b overlaps the other first anode 211 .

[0113] In this embodiment, by overlapping the third subsegment 43a and the fourth subsegment 43b with the two first anodes 211, the footprint of the first light-emitting unit 20 can be reduced, thereby improving the resolution of the display panel 100. Furthermore, the overlapping area between the fourth trace 42 and other traces within the display panel 100 can be reduced, thereby reducing crosstalk from the fourth trace 42 to other traces and improving the display quality of the display panel 100.

[0114] The above describes in detail the specific embodiments of the present application. The above embodiments disclosed in this application are merely preferred embodiments of the present application. Those skilled in the art will appreciate that many variations and improvements can be made without departing from the spirit of the present application. These variations and improvements fall within the scope of protection defined by the claims of this application.

Claims

1. A display panel, characterized in that: include: a base plate, including power cables; a first light-emitting unit disposed on one side of the substrate, the first light-emitting unit comprising a stacked first anode layer, a first light-emitting layer, and a first cathode layer, the first anode layer comprising a plurality of first anodes spaced apart on the substrate, the first light-emitting layer comprising a plurality of first sub-light-emitting layers, one first sub-light-emitting layer being disposed on one first anode, and the first cathode layer covering the plurality of first sub-light-emitting layers; The first line layer includes multiple first routing lines, each of which is electrically connected to the power line. One first anode is provided corresponding to one first routing line, and the first anode is electrically connected to the power line through the corresponding first routing line. Any one of the first routing lines is configured to disconnect the corresponding first anode from the power line after being cut off.

2. The display panel according to claim 1, wherein The first line layer and the first anode layer are arranged in the same layer; The substrate further includes a semiconductor layer, the semiconductor layer includes a second trace, and the second trace is electrically connected to the power line; The first wiring is electrically connected to the power line through the second wiring.

3. The display panel according to claim 2, wherein: The first wiring layer further includes a third wiring, wherein the third wiring is connected to the plurality of first wirings; The first wiring is electrically connected to the second wiring through the third wiring.

4. The display panel according to claim 3, wherein: The substrate further includes a first transfer metal layer, wherein the first transfer metal layer is located between the first line layer and the semiconductor layer; The third wiring is electrically connected to the second wiring through the first transfer metal layer.

5. The display panel according to claim 2, wherein: The first wiring is made of the same material as the first anode.

6. The display panel according to claim 2, wherein: The first anode layer includes two first anodes; The second trace includes: a first subsection electrically connected to the power line; and a second subsegment connected to the first subsegment, the second subsegment being electrically connected to the first trace; In a plan view of the display panel, the first subsegment overlaps with one of the first anodes, and the second subsegment overlaps with another of the first anodes.

7. The display panel according to claim 1, wherein: The display panel further includes a semiconductor layer, the semiconductor layer includes a fourth wiring, and the fourth wiring is electrically connected to the power line; The first wiring layer is provided in the same layer as the semiconductor layer, one fourth wiring is connected to a plurality of the first wirings, and the first wiring is electrically connected to the power line through the fourth wiring.

8. The display panel according to claim 7, wherein: The display panel further includes a second line layer, which is provided in the same layer as the first anode. The second line layer includes a plurality of fifth lines, one of the fifth lines is connected to one of the first anodes, and one of the fifth lines is electrically connected to one of the first lines.

9. The display panel according to claim 8, wherein: The material of the fifth wiring is the same as that of the first anode, and the material of the first wiring is the same as that of the semiconductor layer.

10. The display panel according to claim 8, wherein The substrate further includes a second transfer metal layer, wherein the second transfer metal layer is located between the semiconductor layer and the second line layer; The fifth wiring is electrically connected to the first wiring through the second transfer metal layer.

11. The display panel according to claim 7, wherein: The first anode layer includes two first anodes; The fourth trace includes: a third subsection electrically connected to the power line; and a fourth subsegment connected to the third subsegment, wherein one fourth subsegment is respectively connected to a plurality of the first traces; In a plan view of the display panel, the third subsegment overlaps with one of the first anodes, and the fourth subsegment overlaps with another of the first anodes.

12. The display panel according to any one of claims 1 to 11, wherein: The first light-emitting unit further includes a first pixel driving circuit, the first pixel driving circuit is electrically connected to the plurality of first wirings respectively, and the power line is electrically connected to the first pixel driving circuit.

13. The display panel according to any one of claims 1 to 11, wherein: The display panel further includes a second light emitting unit and a third light emitting unit, wherein the light emitting color of the first light emitting unit is a first color, the light emitting color of the second light emitting unit is a second color, and the light emitting color of the first light emitting unit is a third color; One first light emitting unit, one second light emitting unit, and one third light emitting unit form a repeating unit, and a plurality of the repeating units are arranged in an array on the substrate.

14. The display panel according to claim 13, wherein: In one of the repeating units, the first light-emitting unit and the second light-emitting unit are both located on the same side of the third light-emitting unit; Wherein, a plurality of the first anodes are arranged at intervals on the same side of the third light emitting unit.

15. A display device, characterized in that: The device comprises a display panel according to any one of claims 1 to 14.

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