Display panel and display device

Abstract

The invention discloses a display panel and a display device, the display panel comprises a substrate, a first light emitting unit and a first line layer, and the substrate comprises a power line; the first light-emitting unit is arranged on one side of the substrate, the first light-emitting unit comprises a first anode layer, a first light-emitting layer and a first cathode layer which are arranged in a stacked mode, the first anode layer comprises a plurality of first anodes arranged on the substrate at intervals, the first light-emitting layer comprises a plurality of first light-emitting sub-layers, and one first light-emitting sub-layer is arranged on one first anode; the first cathode layer covers the plurality of first sub-light-emitting layers; the first wire layer comprises a plurality of first wires, the first wires are electrically connected with the power line, one first anode is arranged corresponding to one first wire, the first anodes are electrically connected with the power line through the corresponding first wires, and any first wire is configured to enable the corresponding first anode to be disconnected with the power line after being cut off. The display effect can be improved.

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 are current-type light-emitting devices, including an anode, an organic light-emitting material layer, and a cathode. When there is foreign matter on the anode surface of an organic light-emitting diode, the foreign matter will cause the cathode and the anode to short-circuit, making the corresponding organic light-emitting diode appear as a dark spot in the display panel. When the organic light-emitting diode that forms the dark spot is a green light-emitting device, under naked eye observation, red-purple colored dots will appear in the display panel, affecting the display effect.

[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 the present application is to provide a display panel and a display device to improve the display effect.

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

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

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

[0009] A first light-emitting unit is disposed on one side of the substrate, the first light-emitting unit comprises a first anode layer, a first light-emitting layer and a first cathode layer which are stacked, the first anode layer comprises a plurality of first anodes which are spaced apart and arranged on the substrate, the first light-emitting layer comprises a plurality of first sub-light-emitting layers, one of the first sub-light-emitting layers is disposed on one of the first anodes, and the first cathode layer covers the plurality of first sub-light-emitting layers;

[0010] The first line layer includes a plurality of first routing lines, each of which is electrically connected to the power line. A first anode is arranged corresponding to a first routing line, and the first anode is electrically connected to the power line through the corresponding first routing line. Any first routing line 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 arranged in the same layer;

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

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

[0014] In an 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 routing line is electrically connected to the second routing line through the first transfer metal layer.

[0018] In an 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 routing includes:

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

[0022] a second sub-segment, connected to the first sub-segment, the second sub-segment being electrically connected to the first trace;

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

[0024] In an 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 arranged 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 also includes a second line layer, the second line layer is arranged in the same layer as the first anode, 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 an embodiment of the present application, a material of the fifth wiring is the same as a material of the first anode, and a material of the first wiring is the same as a material 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 routing line is electrically connected to the first routing line 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 routing includes:

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

[0033] A fourth sub-segment is connected to the third sub-segment, and one of the fourth sub-segments is respectively connected to a plurality of the first routing lines;

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

[0035] In an 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 which are stacked, 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 routing lines, the plurality of first routing lines are electrically connected to the power line respectively, one first anode is arranged corresponding to one first routing line, the first anode is electrically connected to the power line through the corresponding first routing line, and any one of the first routing lines 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 arranged in the first light-emitting unit, and a first wiring is electrically connected to a first anode, so that the power line is electrically connected to multiple first anodes through multiple first wirings. When there is a foreign object on the surface of a first anode in the first light-emitting unit, causing the first anode to be short-circuited with the first cathode layer, the first light-emitting unit appears as a dark spot in the display panel. At this time, the first wiring electrically connected to the first anode with the foreign object on the upper surface can be cut off, so that the first anode with the foreign object on the upper surface is disconnected from the power line, thereby solving the problem of dark spots caused by the short circuit between the first anode with the foreign object on the upper surface and the first cathode layer, so that the first light-emitting unit that originally appeared as a dark spot can 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 a first line layer, a first anode layer, a semiconductor layer, and a 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] Fig. 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 shown;

[0051] Fig.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] Fig.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 shown;

[0053] Fig.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 the meanings commonly understood by those of ordinary skill in the art to which this application belongs. The terms used in this specification and claims are only for the purpose of facilitating the description and understanding of this application, and are not intended to limit this application to the narrow interpretation of the specific terms used in the specification and claims.

[0055] The present application proposes a display device. The display device may be a tablet computer, an electronic 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, a car navigation system, etc. The display device includes a display panel 100.

[0056] The present application proposes 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 arranged 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 which are stacked. The first anode layer 21 includes a plurality of first anodes 211 which are spaced apart on the substrate 10. The first light-emitting layer 22 includes a plurality of first sub-light-emitting layers 221. One first sub-light-emitting layer 221 is arranged on one 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. One first anode 211 is arranged corresponding to one 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 to disconnect the corresponding first anode 211 from the power line 11 after being cut off.

[0059] In the present embodiment, by arranging a plurality of first anodes 211 in the first light-emitting unit 20 and electrically connecting a first wiring 31 to a first anode 211, the power line 11 is electrically connected to the plurality of first anodes 211 through the plurality of first wirings 31. When there is a foreign object on the surface of a first anode 211 in the first light-emitting unit 20, causing the first anode 211 to be short-circuited with the first cathode layer, the first light-emitting unit 20 appears as a dark spot in the display panel 100. At this time, the first wiring 31 electrically connected to the first anode 211 with the foreign object on the upper surface can be cut off, so that the first anode 211 with the foreign object on the upper surface is disconnected from the power line 11, thereby solving the problem of dark spots caused by the short-circuit between the first anode 211 with the foreign object on the upper surface and the first cathode layer, so that the first light-emitting unit 20 that originally appeared as a dark spot can 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. Under this color matching, when the organic light emitting diode that forms the dark spot is a green light emitting device, the problem that red and purple color spots will appear in the display panel 100 under naked eye observation can be solved, thereby improving the display effect. The specific solution is as follows: when there is a foreign matter on the upper surface of a first anode 211, causing the first anode 211 to be short-circuited with the first cathode layer, the first light emitting unit 20 of the corresponding repeating unit P will appear as a dark spot. At this time, the first wiring 31 connected to the first anode 211 corresponding to the dark spot can be cut off, so that the first light emitting unit 20 can emit light normally.

[0065] Optionally, the structures of the second light-emitting unit 80 and the third light-emitting unit 90 can be set 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 anode is electrically connected to the power line 11 through the corresponding first trace 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 wiring 31 connected to the second anode corresponding to the dark spot 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 the corresponding first wiring 31.

[0068] When there is foreign matter on the upper surface of a third anode causing a short circuit between the third anode and 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 wiring 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 arranged at intervals 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 reasonably setting 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 occurrence rate of accidental cutting off.

[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 wirings 31 respectively. The power line 11 is electrically connected to the first pixel driving circuit 23.

[0074] In this embodiment, the first pixel driving circuit 23 is a 7T1C driving circuit. The 7T1C driving circuit includes 7 transistors and a capacitor. The power line 11 is electrically connected to the first anode 211 through the first pixel driving circuit 23 and the first wiring 31. When the first light-emitting unit 20 of a certain repeating unit P appears as a dark spot, the first wiring 31 between the first anode 211 and the first pixel driving circuit 23 corresponding to the dark spot can be cut off, so that the first light-emitting unit 20 emits light normally.

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

[0076] Optional, see Figure 4 The first wiring layer 30 is disposed 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, and the material of the insulating layer is at least one of silicon oxide, silicon nitride and silicon oxynitride. A via hole can be provided in the insulating layer, and the first wiring 31 passes through the via hole to connect with the second wiring 41.

[0078] In this example, see Figure 5 Since the first line layer 30 and the first anode layer 21 are arranged in the same layer, the first wiring 31 and the first anode 211 are arranged in the same layer, and the first wiring 31 is directly connected to the first anode 211. When there is a foreign object on the upper surface of a first anode 211, causing the first anode 211 to be short-circuited with the first cathode layer, the corresponding first light-emitting unit 20 appears as a dark spot. At this time, the first wiring 31 connected to the short-circuited first anode 211 can be cut off by laser cutting, so that the first light-emitting unit 20 can emit light normally.

[0079] Since the first line layer 30 and the first anode layer 21 are arranged in the same layer, when the first wiring 31 is cut by laser cutting, the laser can be injected from the light-emitting surface of the display panel 100 to cut the first wiring 31. Among them, the first anode layer 21 of the light-emitting surface of the display panel 100 is far away from the side of the substrate 10. By controlling the energy of the laser, it is avoided that the laser energy is too high, resulting in the first pixel driving circuit 23, the power line 11 and the second wiring 41 connected to the first anode 211 that normally emits light being cut off, thereby improving the success rate of laser cutting repair and avoiding other faults that cause the display panel 100 to fail to emit light normally.

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

[0081] In the present embodiment, since the first wiring 31 and the first anode 211 are disposed in the same layer, and the first wiring 31 is 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 are integrally formed in the manufacturing process, thereby combining the original process of forming the first anode 211 separately and the process of forming the first wiring 31 separately into one process, thereby reducing the cost in the production process of the display panel 100 and improving the 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 it is necessary to set a via in the insulating layer, the connection between the first wiring 31 and the second wiring 41 can be achieved. In order to achieve the connection between multiple first wirings 31 and the second wiring 41, it is necessary to set multiple vias in the insulating layer, which makes the process more complicated. Therefore, in this embodiment, by setting the third wiring 32, after connecting multiple first wirings 31 with the same third wiring 32, only one via needs to be set in the insulating layer to achieve the connection between the third wiring 32 and the second wiring 41, so as to achieve the connection between one second wiring 41 and multiple first wirings 31 by one, simplify the process of the display panel 100, improve production efficiency, and reduce 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 wiring 32 is electrically connected to the second wiring 41 through the first transfer metal layer 50 .

[0086] When the number of insulating layers is set too much or the thickness of the insulating layers is set too large to meet the signal shielding requirements, the depth of the via connecting the first routing line 31 and the second routing line 41 will be relatively large. On the one hand, the routing line set in the via with a large depth will produce cracks when stress concentration occurs. On the other hand, it is difficult to achieve a via design with a large depth in terms of process. Therefore, when the number of insulating layers is set too much or the thickness of the insulating layers is set too large, a first transfer metal layer 50 will be set in the insulating layer to improve the stability of the routing and avoid cracks in the routing.

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

[0088] In the circuit where the power line 11 supplies power to the first anode 211, the power line 11 passes through the second insulating layer S2 and the first insulating layer S1 to connect to the line switching layer M1. The second routing line 41 of the semiconductor layer 40 passes through the first insulating layer S1 to connect to the line switching layer M1. The second sublayer 52 passes through the second insulating layer S2 to connect to the second routing line 41. The first sublayer 51 passes through the third insulating layer S3 to connect to the second sublayer 52. The third routing line 32 passes through the flat layer S4 to connect to the 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 wiring 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 wiring 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 sub-segment 41a and the second sub-segment 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. On the other hand, the overlapping area between the second wiring 41 and other wirings in the display panel 100 can be reduced, thereby reducing the crosstalk of the second wiring 41 to other wirings, and improving the display effect 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 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 wiring 42. The fourth wiring 42 is electrically connected to the power line 11. The first wiring layer 30 is disposed in the same layer as the semiconductor layer 40. One fourth wiring 42 is connected to a plurality of first wirings 31. The first wiring 31 is electrically connected to the power line 11 through the fourth wiring 42.

[0097] In this example, see Fig. 9 Since the first wiring layer 30 and the semiconductor layer 40 are arranged in the same layer, the first wiring 31 and the fourth wiring 42 are arranged in the same layer, and the first wiring 31 is electrically connected to the first anode 211. When there is a foreign object on the upper surface of a first anode 211, causing the first anode 211 to be short-circuited with the first cathode layer, the corresponding first light-emitting unit 20 appears as a dark spot. At this time, the first wiring 31 electrically connected to the short-circuited first anode 211 can be cut off by laser cutting, so that the first light-emitting unit 20 can emit light normally.

[0098] See also Fig.10 Since the first wiring layer 30 and the semiconductor layer 40 are arranged in the same layer, when the first wiring 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 wiring 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 avoided that the laser energy is too high, resulting in the first pixel driving circuit 23, the power line 11 and the fifth wiring 61 connected to the first anode 211 that normally emits light being cut off, thereby improving the success rate of laser cutting repair and avoiding other faults that cause the display panel 100 to fail to 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 wiring 31 and the semiconductor layer 40 are disposed in the same layer, and the first wiring 31 is directly connected to the fourth wiring 42, the first wiring 31 and the fourth wiring 42 can be made of the same material, and the first wiring 31 and the fourth wiring 42 are integrally formed in the process, thereby combining the two processes of forming the fourth wiring 42 separately and forming the first wiring 31 separately into one process, thereby reducing the cost in the production process of the display panel 100 and improving the production efficiency.

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

[0102] In this embodiment, in order to improve the flatness of the film layer above the first anode 211, a via hole cannot be directly provided on the lower surface of the first anode 211 so that the first anode 211 passes through the via hole to connect with the first wiring 31. Therefore, by providing a second wiring layer 60 in the same layer as the first anode layer 21, the fifth wiring 61 is directly connected to the first anode 211. The first wiring 31 passes through the lower insulating layer and the flat layer S4 and is connected to the first wiring 31, thereby improving the flatness of the film layer above the first anode 211 to improve the 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 line layer 60 and the first anode layer 21 are disposed 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 are integrally formed in the process, thereby combining the original process of forming the fifth wiring 61 separately and the process of forming the first anode 211 separately into one process, thereby reducing the cost in the production process of the display panel 100 and improving the 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 line layer 60. The fifth wiring 61 is electrically connected to the first wiring 31 through the second transfer metal layer 70.

[0106] When the number of insulating layers is set too much or the thickness of the insulating layers is set too large to meet the signal shielding requirements, the depth of the via connecting the fifth routing line 61 and the first routing line 31 will be relatively large. On the one hand, the routing line set in the via with a large depth will produce cracks when stress concentration occurs. On the other hand, it is difficult to achieve a via design with a large depth in terms of process. Therefore, when the number of insulating layers is set too much or the thickness of the insulating layers is set too large, a second transfer metal layer 70 will be set in the insulating layer to improve the stability of the routing and avoid cracks in the routing.

[0107] Optional, see Fig.12 , a first insulating layer S1, a second insulating layer S2, a third insulating layer S3 and a flat layer S4 are sequentially arranged on the substrate S0. The first anode 211 and the fifth wiring 61 are arranged on the side of the flat 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 arranged between the flat layer S4 and the third insulating layer S3. The fourth sublayer 72 and the power line 11 are arranged between the third insulating layer S3 and the second insulating layer S2. The semiconductor layer 40 and the first wiring 31 are arranged between the second insulating layer S2 and the first insulating layer S1. The switching layer M1 is arranged between the substrate S0 and the first insulating layer S1.

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

[0109] It should be noted that Fig.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 Fig.12 , it is only necessary to cut off the corresponding first wiring 31 connected to the fourth wiring 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 line 42 includes a third sub-segment 43a and a fourth sub-segment 43b. The third sub-segment 43a is electrically connected to the power line 11. The fourth sub-segment 43b is connected to the third sub-segment 43a. One fourth sub-segment 43b is respectively connected to the plurality of first lines 31.

[0112] See also Fig. 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 sub-segment 43a and the fourth sub-segment 43b 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. On the other hand, the overlapping area between the fourth wiring 42 and other wirings in the display panel 100 can be reduced, thereby reducing the crosstalk of the fourth wiring 42 to other wirings, and improving the display effect of the display panel 100.

[0114] The above is a detailed description of the specific implementation of the present application. The above implementation disclosed in the present application is only the preferred implementation of the present application. For ordinary technicians in this field, many modifications and improvements can be made without departing from the concept of the present application. These modifications and improvements all fall within the scope of protection defined by the claims of the present application.

Claims

1. A display panel, characterized in that: include: a base plate, including a power supply line; A first light-emitting unit is disposed on one side of the substrate, the first light-emitting unit comprises a first anode layer, a first light-emitting layer and a first cathode layer which are stacked, the first anode layer comprises a plurality of first anodes which are spaced apart and arranged on the substrate, the first light-emitting layer comprises a plurality of first sub-light-emitting layers, one of the first sub-light-emitting layers is disposed on one of the first anodes, and the first cathode layer covers the plurality of first sub-light-emitting layers; The first line layer includes a plurality of first routing lines, each of which is electrically connected to the power line. A first anode is arranged corresponding to a first routing line, and the first anode is electrically connected to the power line through the corresponding first routing line. Any first routing line 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 is arranged in the same layer as the first anode layer; The substrate further comprises a semiconductor layer, the semiconductor layer comprises a second wiring, and the second wiring 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, and the third wiring is connected to the plurality of the 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 routing line is electrically connected to the second routing line 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 routing includes: A first subsection electrically connected to the power line; and a second sub-segment, connected to the first sub-segment, the second sub-segment being electrically connected to the first trace; In a plan view of the display panel, the first subsegment overlaps one of the first anodes, and the second subsegment overlaps 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 arranged 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 arranged in the same layer as the first anode. The second line layer includes a plurality of fifth wirings, one of the fifth wirings is connected to one of the first anodes, and one of the fifth wirings is electrically connected to one of the first wirings.

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 routing line is electrically connected to the first routing line 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 routing includes: A third subsection electrically connected to the power line; and A fourth sub-segment is connected to the third sub-segment, and one of the fourth sub-segments is respectively connected to a plurality of the first routing lines; In a plan view of the display panel, the third subsegment overlaps one of the first anodes, and the fourth subsegment overlaps another of the first anodes.

12. The display panel according to any one of claims 1 to 11, characterized in that: 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, characterized in that: 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: Comprising the display panel as claimed in any one of claims 1 to 14.

Images