Display panel and manufacturing method thereof

Abstract

The application provides a display panel and a manufacturing method thereof. The display panel comprises a substrate, a driving circuit layer, a plurality of anodes, a light-emitting layer and a cathode which are arranged in layers. The second anode material layer in the anode is divided into a plurality of electrode blocks which are arranged at intervals. The third anode material layer is connected to the first anode material layer through the gaps between the electrode blocks. The resistance imbalance characteristics of the positions where the micro particles fall and the positions where the micro particles do not fall are utilized, so that the positions corresponding to the electrode blocks where the micro particles fall do not emit light, and the positions corresponding to the remaining electrode blocks still emit light normally. In this way, the area of the dark spot can be reduced, the problem that one micro particle causes a dark spot of the whole pixel can be avoided, the product yield can be improved, the repair ratio can be reduced, the production efficiency can be improved, and the production cost can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel and a manufacturing method thereof. BACKGROUND

[0002] At present, the market maturity of large-size organic light emitting diode (OLED) display panels is higher and higher, and the market share is also larger and larger, but the selling price of OLED television or display is still high, one part of the reason is that the material cost of OLED is relatively high compared with liquid crystal display (LCD), and the other part of the reason is that the OLED manufacturing process is relatively complex, and it is difficult to improve the yield, and the dark spot problem is one of the most important key points for improving the yield of OLED.

[0003] The main reason for causing dark spots is that particles cause short circuit between cathode and anode, so that current is concentrated in the short circuit position from the anode to the cathode, causing no electron-hole recombination in the OLED light emitting device, and the OLED light emitting device cannot emit light, thereby forming dark spots. The particle size greater than 0.3 μm can cause dark spots, so the environmental control requirements are more and more strict. The number of dark spots that need to be repaired in the later stage also increases significantly, causing great pressure on repair, increasing equipment investment and product manufacturing cost.

[0004] In summary, the existing display panel has the problem of dark spots caused by short circuit between cathode and anode due to particles. Therefore, it is necessary to provide a display panel and a manufacturing method thereof to improve this defect. SUMMARY

[0005] The embodiments of the present application provide a display panel and a manufacturing method thereof, which can avoid the problem of dark spots caused by a particle in the entire pixel, so as to improve the product yield, reduce the repair ratio, thereby improving the production efficiency and reducing the production cost.

[0006] The embodiments of the present application provide a display panel, comprising:

[0007] a substrate;

[0008] a driving circuit layer arranged on one side of the substrate;

[0009] a plurality of anodes arranged on a side of the driving circuit layer away from the substrate;

[0010] a light emitting layer arranged on a side of the anode away from the driving circuit layer; and

[0011] a cathode arranged on a side of the light emitting layer away from the anode;

[0012] The anode comprises a first anode material layer, a second anode material layer and a third anode material layer arranged in layers, the second anode material layer has a smaller resistance than the first anode material layer and the third anode material layer, the second anode material layer is divided into a plurality of electrode blocks arranged at intervals, and the third anode material layer is connected to the first anode material layer through the gaps between the electrode blocks.

[0013] According to an embodiment of the present application, the second anode material layer comprises at least two rows and two columns of electrode blocks.

[0014] Each row of electrode blocks comprises at least two electrode blocks arranged at intervals in a first direction, and each column of electrode blocks comprises at least two electrode blocks arranged at intervals in a second direction, and the first direction is different from the second direction.

[0015] According to an embodiment of the present application, the areas of the electrode blocks in the same anode are equal.

[0016] According to an embodiment of the present application, the distances between any two adjacent electrode blocks in the same anode are equal.

[0017] According to an embodiment of the present application, the distances between any two adjacent electrode blocks in the same anode are greater than or equal to 2 μm and less than or equal to 3 μm.

[0018] According to an embodiment of the present application, the material of the first anode material layer is indium tin oxide or indium zinc oxide, the material of the second anode material layer is silver, and the material of the third anode material layer is indium tin oxide or indium zinc oxide.

[0019] According to an embodiment of the present application, the material of the first anode material layer is the same as the material of the third anode material layer.

[0020] According to an embodiment of the present application, the thickness of the second anode material layer is greater than the thickness of the first anode material layer and the thickness of the third anode material layer.

[0021] According to an embodiment of the present application, the thickness of the first anode material layer is greater than or equal to 100 μm and less than or equal to 200 μm, the thickness of the second anode material layer is greater than or equal to 1000 μm and less than or equal to 2000 μm, and the thickness of the third anode material layer is greater than or equal to 100 μm and less than or equal to 200 μm.

[0022] According to the display panel provided by the above-mentioned embodiments of the present application, the present application further provides a display panel manufacturing method for manufacturing the display panel provided by the above-mentioned embodiments, and the display panel manufacturing method comprises:

[0023] A driving circuit layer is formed on the substrate;

[0024] A first anode material layer is formed on the side of the drive circuit layer away from the substrate;

[0025] A second anode material layer is formed on the side of the first anode material layer away from the driving circuit layer, and the second anode material layer is etched to form a plurality of electrode blocks spaced apart from each other.

[0026] A third anode material layer is formed on the side of the second anode material layer away from the electrode block and away from the first anode material layer, and in the gap between the electrode blocks. The third anode material layer is connected to the first anode material layer through the gap between the electrode blocks.

[0027] A light-emitting layer and a cathode are sequentially formed on the side of the third anode material layer away from the substrate.

[0028] The beneficial effects of the embodiments of this application are as follows: This application provides a display panel and a method for manufacturing the display panel. The display panel includes a substrate, a driving circuit layer, multiple anodes, a light-emitting layer, and a cathode stacked together. By dividing the second anode material layer in the anode into multiple mutually spaced electrode blocks, and connecting the third anode material layer to the first anode material layer through the gaps between the electrode blocks, when a particle falls to the position corresponding to any electrode block in the anode, it causes a short circuit between the cathode and the anode. Utilizing the unbalanced characteristics of the resistance at the short circuit point, the resistance at the position where only the first and second anode material layers are provided, and the resistance at the position where no short circuit occurs but where the first, second, and third anode material layers are provided, when charge is applied to the anode, the current will preferentially choose the path with lower resistance for transmission, so that only the position corresponding to the electrode block where the particle fell does not emit light, while the positions corresponding to the other electrode blocks still emit light normally. This can reduce the area of ​​dark spots, avoid the problem of a single particle causing a dark spot in the entire pixel, thereby improving product yield, reducing the repair ratio, and thus improving production efficiency and reducing production costs. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of the display panel provided in an embodiment of this application;

[0031] Figure 2 This is a first planar schematic diagram of the second anode material layer provided in an embodiment of this application;

[0032] Figure 3 This is a second planar schematic diagram of the second anode material layer provided in an embodiment of this application;

[0033] Figure 4 A third planar schematic diagram of the second anode material layer provided in the embodiments of this application;

[0034] Figure 5 This is a schematic diagram illustrating the working principle of the display panel provided in the embodiments of this application;

[0035] Figure 6 This is a schematic diagram of the working principle of the display panel provided in the embodiments of this application;

[0036] Figures 7a to 7c This is a schematic diagram of the process structure of the method for manufacturing a display panel provided in an embodiment of this application. Detailed Implementation

[0037] The following descriptions of the embodiments are based on the accompanying illustrations and are used to illustrate specific embodiments in which this application can be implemented. Directional terms used in this application, such as [up], [down], [front], [back], [left], [right], [inner], [outer], [side], etc., are only for reference to the accompanying drawings. Therefore, the directional terms used are for illustrative and understanding purposes and not for limiting the application. In the figures, structurally similar units are represented by the same reference numerals.

[0038] The present application will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] like Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application. The display panel includes a substrate 10, a driving circuit layer 11, multiple anodes 12, a light-emitting layer 13, and a cathode 14.

[0040] The substrate 10 can be a flexible substrate made of a transparent flexible material, which may include, but is not limited to, flexible transparent organic materials such as polyimide. The substrate 10 can also be made of a transparent and rigid inorganic material, such as a glass substrate.

[0041] The driving circuit layer 11 is disposed on one side of the substrate 10. The driving circuit layer 11 can be in direct contact with one side surface of the substrate 10, or it can be in indirect contact with the substrate 10. The driving circuit layer 11 can be formed by overlapping multiple layers of inorganic insulating layers and metal layers, and the metal layers can include, but are not limited to, gate metal layers, source / drain electrode metal layers, etc. The driving circuit layer 11 may also include a planarization layer located on the side of the driving circuit layer 11 away from the substrate 10.

[0042] Multiple anodes 12 are disposed on the side of the driving circuit layer 11 away from the substrate 10 and are arranged in an array on the driving circuit layer 11. The anodes 12 can be directly disposed on the surface of the planarization layer in the driving circuit layer 11 away from the substrate 10. The anodes 12 can be electrically connected to the source or drain of the thin-film transistor in the driving circuit layer 11.

[0043] The light-emitting layer 13 is disposed on the side of the anode 12 away from the driving circuit layer 11. The light-emitting layer 13 may include a hole injection layer, a hole transport layer, an organic light-emitting material layer, an electron transport layer, and an electron injection layer stacked together. The hole injection layer, hole transport layer, electron transport layer, and electron injection layer can all be formed by a full-surface vapor deposition process, and the organic light-emitting material layer can be formed by an inkjet printing method.

[0044] In this embodiment, the light emitted by the light-emitting layer 13 may include, but is not limited to, red, green, and blue. The anode 12 and the organic light-emitting material layer are aligned and can both be arranged using existing pixel arrangement methods, which are not limited here.

[0045] The cathode 14 is disposed on the side of the light-emitting layer 13 away from the anode 12. The cathode 14 can be a mixture of magnesium and silver, or it can be a stacked structure formed by stacking silver and transparent conductive oxide materials. For example, the cathode 14 can be a silver / indium zinc oxide stacked structure or an indium zinc oxide / silver stacked structure.

[0046] The cathode 14 can be formed using a full-surface vapor deposition process. The display panel can include multiple pixels arranged in an array within the display area, and each pixel can have a light-emitting diode, which can be composed of an anode 12, a light-emitting layer 13, and a cathode 14.

[0047] Furthermore, the anode 12 includes a first anode material layer 121, a second anode material layer 122, and a third anode material layer 123 stacked together.

[0048] like Figure 1As shown, the first anode material layer 121 is disposed on the planarization layer, the third anode material layer 123 is disposed on the side of the first anode material layer 121 away from the substrate 10, and the second anode material layer 122 is disposed between the first anode material layer 121 and the third anode material layer 123.

[0049] like Figure 1 As shown, the second anode material layer 122 is divided into a plurality of electrode blocks 1220 spaced apart from each other, and the third anode material layer 123 is connected to the first anode material layer 121 through the gaps between the electrode blocks 1220.

[0050] Furthermore, the second anode material layer 122 includes at least two rows and two columns of the electrode blocks, each row of the electrode blocks includes at least two electrode blocks 1220 spaced apart along a first direction x, and each column of the electrode blocks includes at least two electrode blocks 1220 spaced apart along a second direction y, wherein the first direction x and the second direction y are different.

[0051] In one embodiment, such as Figure 2 As shown, Figure 2 This is a first planar schematic diagram of the second anode material layer provided in an embodiment of this application. The second anode material layer 122 includes two rows and two columns of electrode blocks. Each row of electrode blocks includes two electrode blocks 1220 spaced apart along a first direction x. Each column of electrode blocks includes two electrode blocks 1220 spaced apart along a second direction y. The first direction x is a horizontal direction, and the second direction y is a vertical direction. The first direction x and the second direction y are perpendicular to each other.

[0052] In one embodiment, such as Figure 3 As shown, Figure 3 This is a second planar schematic diagram of the second anode material layer provided in an embodiment of this application. The second anode material layer 122 includes three rows and two columns of electrode blocks. Each row of electrode blocks includes two electrode blocks 1220 spaced apart along a first direction x, and each column of electrode blocks includes three electrode blocks 1220 spaced apart along a second direction y.

[0053] In one embodiment, such as Figure 4 As shown, Figure 4 This is a third planar schematic diagram of the second anode material layer provided in the embodiments of this application. The second anode material layer 122 includes four rows and two columns of electrode blocks. Each row of electrode blocks includes two electrode blocks 1220 spaced apart along the first direction x, and each column of electrode blocks includes four electrode blocks 1220 spaced apart along the second direction y.

[0054] Furthermore, the resistance of the second anode material layer 122 is less than the resistance of the first anode material layer 121 and the resistance of the third anode material layer 123.

[0055] Combination Figure 5 and Figure 6 As shown, Figure 5 This is a schematic diagram illustrating the working principle of the display panel provided in an embodiment of this application. Figure 6 This is a planar schematic diagram of the working principle of the display panel provided in the embodiment of this application. Taking the second planar schematic diagram of the second anode material layer shown in 3 as an example, the second anode material layer 122 is divided into 6 electrode blocks 1220.

[0056] Let position A be the location where the particle 20 falls onto the first electrode block 1220 in the first row, and position B be the gap between the electrode blocks 1220. Position B is provided with only the first anode material layer 121 and the third anode material layer 123. Position C is the location where no particle falls onto the first anode material layer 121, the second anode material layer 122, and the third anode material layer 123 are provided.

[0057] When particle 20 falls at position A, particle 20 is located between the third anode material layer 123 of anode 12 and cathode 14, causing a short circuit between anode 12 and cathode 14. The resistance at position A is set as R1, the resistance at position B as R2, and the resistance at position C as R3.

[0058] It should be noted that since the contact between the anode 12 and cathode 14 at particle 20 is point contact, the contact resistance R1 at position A is necessarily greater than the resistance R2 at position B. Furthermore, the resistance of the second anode material layer 122 is less than the resistance of the first anode material layer 121 and the third anode material layer 123, making the resistance R2 at position B greater than the resistance R3 at position C. Therefore, the current input to the anode 12 will not flow entirely towards position A where a short circuit occurs, but will preferentially flow towards position C, which has lower resistance and is not short-circuited. This results in position A not emitting light, position C emitting light normally, and position B, lacking the second anode material layer 122, emitting light, albeit with a slightly weaker color. This reduces the area of ​​the region that cannot emit light due to particle 20, preventing a single particle 20 from causing the entire pixel to fail to emit light and resulting in a dark spot. This improves product yield, reduces the repair rate, and ultimately increases production efficiency and reduces production costs.

[0059] Furthermore, the areas of each of the electrode blocks 1220 in the same anode 12 are equal.

[0060] In one embodiment, such as Figures 2 to 4As shown in any schematic diagram, the areas of each electrode block 1220 in the same anode 12 are equal, which can reduce the design and manufacturing difficulty of the display panel, and at the same time ensure the uniformity of the display.

[0061] Furthermore, the distance between any two adjacent electrode blocks 1220 in the same anode 12 is equal. Since no second anode material layer 122 is provided in the gap between adjacent electrode blocks 1220, the light color in the gap between adjacent electrode blocks 1220 is slightly weaker. By making the distance between adjacent electrode blocks 1220 equal, the distribution range of the slightly weaker light color can be made more uniform, improving the uniformity of the display.

[0062] Furthermore, the distance between any two adjacent electrode blocks 1220 in the same anode 12 is greater than or equal to 2 μm and less than or equal to 3 μm.

[0063] In one embodiment, the distance between any two adjacent electrode blocks 1220 within the same anode 12 can be, but is not limited to, any one of 2μm, 2.2μm, 2.4μm, 2.5μm, 2.6μm, 2.8μm, or 3μm. In practical applications, the distance between any two adjacent electrode blocks 1220 within the same anode 12 can be equal, unequal, or within a certain tolerance range; no limitation is imposed here.

[0064] Furthermore, the first anode material layer 121 is made of indium tin oxide or indium zinc oxide, the second anode material layer 122 is made of silver, and the third anode material layer 123 is made of indium tin oxide or indium zinc oxide.

[0065] The display panel provided in this embodiment is a top-emitting OLED display panel. The second anode material layer 122 is made of silver with high reflectivity, which can reflect the light emitted from the light-emitting layer 13 toward the anode 12 and then emitted from the light-emitting side of the display panel, thereby improving the light utilization rate. The first anode material layer 121 and the third anode material layer 123 are both made of transparent conductive oxide. On the one hand, they can protect the second anode material layer 122 from oxidation or corrosion, and on the other hand, they can reduce light absorption and improve the light utilization rate.

[0066] In one embodiment, the first anode material layer 121 and the third anode material layer 123 may be made of the same material. For example, the first anode material layer 121 and the second anode material layer 122 may both be indium tin oxide (ITO) or indium zinc oxide (IZO), and the material of the second anode material layer 122 may be silver.

[0067] In one embodiment, the materials of the first anode material layer 121 and the third anode material layer 123 may be different. For example, the material of the first anode material layer 121 may be indium tin oxide and the material of the third anode material layer 123 may be indium zinc oxide; or, the material of the first anode material layer 121 may be indium zinc oxide and the material of the third anode material layer 123 may be indium tin oxide.

[0068] Furthermore, the thickness of the second anode material layer 122 is greater than the thickness of the first anode material layer 121 and the thickness of the third anode material layer 123. This can prevent the light transmittance of the first anode material layer 121 and the third anode material layer 123 from decreasing due to their excessively thin thickness.

[0069] In one embodiment, the thickness of the first anode material layer 121 is greater than or equal to 100 μm and less than or equal to 200 μm, the thickness of the second anode material layer 122 is greater than or equal to 1000 μm and less than or equal to 2000 μm, and the thickness of the third anode material layer 123 is greater than or equal to 100 μm and less than or equal to 200 μm.

[0070] For example, the thickness of the first anode material layer 121 can be any one of, but not limited to, 100μm, 120μm, 140μm, 150μm, 160μm, 180μm, or 200μm; the thickness of the second anode material layer 122 can be any one of, but not limited to, 1000μm, 1200μm, 1400μm, 1500μm, 1600μm, 1800μm, or 2000μm; and the thickness of the third anode material layer 123 can be any one of, but not limited to, 100μm, 120μm, 140μm, 150μm, 160μm, 180μm, or 200μm.

[0071] In one embodiment, the thickness of the first anode material layer 121 may be equal to or unequal to the thickness of the third anode material layer 123.

[0072] Based on the display panel provided in the above embodiments of this application, this application also provides a method for manufacturing the display panel, such as...Figure 7a , Figure 7b as well as Figure 7c As shown, Figure 7a , Figure 7b as well as Figure 7c This is a schematic flowchart illustrating a method for manufacturing a display panel according to an embodiment of this application. The method for manufacturing the display panel includes:

[0073] Step S10: Form a driving circuit layer 11 on the substrate 10.

[0074] In this embodiment, the driving circuit layer 11 can be in direct contact with one side surface of the substrate 10, or it can be in indirect contact with the substrate 10. The driving circuit layer 11 can be formed by overlapping multiple layers of inorganic insulating layers and metal layers, and the metal layers can include, but are not limited to, gate metal layers, source / drain electrode metal layers, etc. The driving circuit layer 11 may also include a planarization layer located on the side of the driving circuit layer 11 away from the substrate 10.

[0075] Step S20: A first anode material layer 121 is formed on the side of the drive circuit layer 11 away from the substrate.

[0076] In this embodiment, the material of the first anode material layer 121 can be indium tin oxide (ITO) or indium zinc oxide (IZO).

[0077] The thickness of the first anode material layer 121 is greater than or equal to 100 μm and less than or equal to 200 μm. For example, the thickness of the first anode material layer 121 can be any one of, but not limited to, 100 μm, 120 μm, 140 μm, 150 μm, 160 μm, 180 μm or 200 μm.

[0078] Step S30: A second anode material layer is formed on the side of the first anode material layer 121 away from the driving circuit layer 11, and the second anode material layer is etched to form a plurality of electrode blocks 1220 spaced apart from each other;

[0079] In this embodiment, the material of the second anode material layer 122 is silver.

[0080] The thickness of the second anode material layer 122 is greater than or equal to 1000 μm and less than or equal to 2000 μm. For example, the thickness of the second anode material layer 122 can be any one of 1000 μm, 1200 μm, 1400 μm, 1500 μm, 1600 μm, 1800 μm or 2000 μm.

[0081] Step S40: A third anode material layer 123 is formed on the side of the second anode material layer away from the electrode block away from the first anode material layer 121 and in the gap between the electrode block 1220. The third anode material layer 123 is connected to the first anode material layer 121 through the gap between the electrode blocks 1220.

[0082] In this embodiment, the material of the third anode material layer 123 can be indium tin oxide (ITO) or indium zinc oxide (IZO). The third anode material layer 123 and the first anode material layer 121 can be made of the same material or different materials, and there is no limitation here.

[0083] The thickness of the third anode material layer 123 is greater than or equal to 100 μm and less than or equal to 200 μm. For example, the thickness of the third anode material layer 123 can be any one of, but is not limited to, 100 μm, 120 μm, 140 μm, 150 μm, 160 μm, 180 μm, or 200 μm. The thickness of the third anode material layer 123 can be equal to or unequal to the thickness of the first anode material layer 121; no limitation is imposed here.

[0084] Step S50: A light-emitting layer and a cathode are sequentially formed on the side of the third anode material layer 123 away from the substrate 10.

[0085] In this embodiment, after the third anode material layer 123 is deposited, the third anode material layer 123 and the first anode material layer 121 can be etched simultaneously through an etching process to form a plurality of patterned block electrodes. The block electrodes and the electrode blocks 1220 in the second anode material layer constitute an anode.

[0086] In some other embodiments, the first anode material layer 121 may be patterned after deposition, and the third anode material layer 123 may be patterned after formation.

[0087] Based on the display panel provided in the above embodiments of this application, this application also provides an electronic device, which includes the display panel provided in the above embodiments. The electronic device can be a mobile terminal, such as color electronic paper, color e-book, smartphone, etc. The electronic device can also be a wearable terminal, such as smartwatch, smart bracelet, etc. The electronic device can also be a fixed terminal, such as color electronic billboard, color electronic poster, etc.

[0088] The beneficial effects of the embodiments of this application are as follows: This application provides a display panel and a method for manufacturing the display panel. The display panel includes a substrate, a driving circuit layer, multiple anodes, a light-emitting layer, and a cathode stacked together. By dividing the second anode material layer in the anode into multiple mutually spaced electrode blocks, and connecting the third anode material layer to the first anode material layer through the gaps between the electrode blocks, when a particle falls to the position corresponding to any electrode block in the anode, it causes a short circuit between the cathode and the anode. Utilizing the unbalanced characteristics of the resistance at the short circuit point, the resistance at the position where only the first and second anode material layers are provided, and the resistance at the position where no short circuit occurs but where the first, second, and third anode material layers are provided, when charge is applied to the anode, the current will preferentially choose the path with lower resistance for transmission, so that only the position corresponding to the electrode block where the particle fell does not emit light, while the positions corresponding to the other electrode blocks still emit light normally. This can reduce the area of ​​dark spots, avoid the problem of a single particle causing a dark spot in the entire pixel, thereby improving product yield, reducing the repair ratio, and thus improving production efficiency and reducing production costs.

[0089] In summary, although the present application discloses the preferred embodiments as described above, the above preferred embodiments are not intended to limit the present application. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application is based on the scope defined by the claims.

Claims

1. A display panel, characterized in that, include: substrate; A driving circuit layer is disposed on one side of the substrate; Multiple anodes are disposed on the side of the drive circuit layer away from the substrate; A light-emitting layer is disposed on the side of the anode away from the driving circuit layer; as well as The cathode is disposed on the side of the light-emitting layer away from the anode; Each anode comprises a first anode material layer, a second anode material layer, and a third anode material layer stacked together. The resistance of the second anode material layer is less than the resistance of the first anode material layer and the resistance of the third anode material layer. The second anode material layer of each anode is divided into multiple electrode blocks, which are spaced apart by gaps. The third anode material layer is connected to the first anode material layer through the gaps between the electrode blocks. Each anode comprises at least two rows and at least two columns of electrode blocks. Each row of electrode blocks comprises at least two electrode blocks spaced apart along a first direction, and each column of electrode blocks comprises at least two electrode blocks spaced apart along a second direction, where the first direction and the second direction are different.

2. The display panel as described in claim 1, characterized in that, The areas of each of the electrode blocks in the same anode are equal.

3. The display panel as described in claim 1, characterized in that, The distance between any two adjacent electrode blocks in the same anode is equal.

4. The display panel as described in claim 3, characterized in that, The distance between any two adjacent electrode blocks in the same anode is greater than or equal to 2 μm and less than or equal to 3 μm.

5. The display panel as described in claim 1, characterized in that, The first anode material layer is made of indium tin oxide or indium zinc oxide, the second anode material layer is made of silver, and the third anode material layer is made of indium tin oxide or indium zinc oxide.

6. The display panel as described in claim 5, characterized in that, The material of the first anode material layer is the same as the material of the third anode material layer.

7. The display panel as described in claim 1, characterized in that, The thickness of the second anode material layer is greater than the thickness of the first anode material layer and the thickness of the third anode material layer.

8. The display panel as described in claim 7, characterized in that, The thickness of the first anode material layer is greater than or equal to 100 μm and less than or equal to 200 μm, the thickness of the second anode material layer is greater than or equal to 1000 μm and less than or equal to 2000 μm, and the thickness of the third anode material layer is greater than or equal to 100 μm and less than or equal to 200 μm.

9. A method for manufacturing a display panel, characterized in that, include: A driving circuit layer is formed on the substrate; A first anode material layer is formed on the side of the drive circuit layer away from the substrate; A second anode material layer is formed on the side of the first anode material layer away from the driving circuit layer. The second anode material layer is etched to form a plurality of electrode blocks, which are spaced apart from each other by gaps. A third anode material layer is formed on the side of the second anode material layer away from the electrode block and away from the first anode material layer, and in the gap between the electrode blocks. The third anode material layer is connected to the first anode material layer through the gap between the electrode blocks. as well as A light-emitting layer and a cathode are sequentially formed on the side of the third anode material layer away from the substrate; Wherein, the first anode material layer, the second anode material layer, and the third anode material layer are stacked sequentially to form an anode, and the second anode material layer of each anode includes a plurality of electrode blocks arranged at intervals between each other; each anode includes at least two rows and at least two columns of electrode blocks, each row of electrode blocks includes at least two electrode blocks spaced apart along a first direction, and each column of electrode blocks includes at least two electrode blocks spaced apart along a second direction, wherein the first direction and the second direction are different.

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