Display panel and display device

Abstract

The present application discloses a display panel and a display device. The display panel includes: a substrate provided with a support surface; an inclined layer disposed on the support surface, the inclined layer having an inclined surface facing away from the substrate, wherein the material of the inclined layer is a non-conductive material; a boosting electrode, at least part of which is disposed on the inclined surface, wherein in a direction perpendicular to the inclined surface and away from the substrate, the longitudinal cross-section of the boosting electrode is in an inverted trapezoid shape; a conductive layer, at least part of which is located on the inclined surface of the boosting electrode away from the substrate, and the conductive layer located on the inclined surface of the boosting electrode away from the substrate is in contact with the side wall of the boosting electrode. The display panel provided by the present application can improve the overlapping rate between the boosting electrode and the conductive layer, thereby improving the yield of the display panel.

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] OLED (Organic Light-Emitting Diode) display panels have attracted much attention due to their advantages such as self-luminescence, wide viewing angle, short response time and high efficiency, and have become a research hotspot in the display field.

[0003] At the same time, with the development of technology, OLED display panels are also moving towards larger and thinner directions. However, large-size display panels are accompanied by the influence of IR Drop (IR voltage drop). Specifically, the cathode material has a large resistance. When the display panel area is large, the cathode layer at different positions will produce different IR voltage drops, resulting in uneven display brightness of the display panel.

[0004] In order to improve the above phenomenon, the current practice is to add a boost electrode connected to the cathode layer, and transmit the voltage to be applied to the cathode layer through the boost electrode. However, this approach currently has the defect of low yield, and the effect needs to be further improved. Summary of the invention

[0005] The present application provides a display panel and a display device, which can improve the overlap rate of the boosting electrode and the conductive layer, thereby improving the yield of the display panel.

[0006] According to a first aspect of an embodiment of the present application, there is provided a display panel, comprising: a substrate provided with a supporting surface; an inclined layer arranged on the supporting surface, the inclined layer provided with an inclined surface facing away from the substrate, wherein the material of the inclined layer is a non-conductive material; a boost electrode at least partially arranged on the inclined surface, wherein a longitudinal cross-section of the boost electrode is an inverted trapezoid in a direction perpendicular to the inclined surface and away from the substrate; and a conductive layer at least partially located on the inclined surface of the boost electrode away from the substrate, and the conductive layer located on the inclined surface of the boost electrode away from the substrate is in contact with the side wall of the boost electrode.

[0007] Wherein, in a direction perpendicular to the supporting surface and away from the substrate, a longitudinal section of the inclined layer is in the shape of a regular trapezoid.

[0008] Wherein, the material of the inclined layer includes organic material.

[0009] Wherein, the angle between the inclined surface and the supporting surface ranges from 30° to 45°.

[0010] Wherein, the display panel further comprises: a first protective layer disposed on one side of the boosting electrode facing the substrate and attached to the boosting electrode; a second protective layer disposed on the side of the boosting electrode away from the substrate and attached to the boosting electrode.

[0011] Wherein, the first protective layer and the second protective layer are made of the same material; preferably, the materials of the first protective layer and the second protective layer include indium tin oxide; preferably, the material of the boosting electrode includes silver.

[0012] Wherein, the display panel further comprises: a first organic layer disposed on one side of the conductive layer facing the substrate.

[0013] Wherein, the display panel further comprises: a boosting wire disposed on the substrate and electrically connected to the boosting electrode; preferably, the boosting wire and the boosting electrode are made of the same material.

[0014] Wherein, the display panel is an organic light-emitting diode display panel, and the conductive layer serves as the cathode layer in the organic light-emitting diode display panel; preferably, the display panel further comprises: an anode layer disposed on the support surface where the inclined layer is not provided; a second organic layer disposed on the anode layer; a light-emitting material layer disposed on the second organic layer; wherein, the conductive layer on the inclined surface on the side of the boosting electrode away from the substrate extends onto the light-emitting material layer.

[0015] A second aspect of the embodiments of the present application provides a display device, including any one of the above display panels.

[0016] The beneficial effects are as follows: In the present application, an inclined layer is added between the substrate and the boosting electrode with a trapezoidal cross-section in the longitudinal direction. The addition of the inclined layer rotates the boosting electrode by a certain angle, so that the depth of the evaporation material entering the bottom of the boosting electrode during the preparation process can be increased, the success rate of the overlap between the boosting electrode and the conductive layer can be improved, and thus the yield of the display panel can be improved. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, where:

[0018] Figure 1 is a schematic structural diagram of an embodiment of the display panel of the present application;

[0019] Figure 2 is Figure 1Enlarged schematic diagram of location A in [].

[0020] Figure 3 It is a schematic structural diagram of a boosting electrode and a conductive layer disposed on a substrate in the related art;

[0021] Figure 4 It is a schematic structural diagram of a first protective layer, a boosting voltage, and a second protective layer disposed on a substrate in another embodiment of the present application;

[0022] Figure 5 It is a schematic structural diagram of the electrical connection between the boosting electrode and the boosting wire in the present application;

[0023] Figure 6 It is a schematic process diagram of manufacturing a display panel in a specific embodiment of the present application;

[0024] Figure 7 It is a schematic structural diagram of an embodiment of a display device according to the present application. Detailed Embodiments

[0025] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0026] It should be noted that the terms "first" and "second" in the present application are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0027] Refer to Figure 1 and Figure 2 , Figure 1 It is a schematic structural diagram of an embodiment of a display panel according to the present application, Figure 2 is Figure 1 an enlarged schematic diagram of location A in []; the display panel 100 includes a substrate 110, an inclined layer 120, a boosting electrode 130, and a conductive layer 140.

[0028] The substrate 110 is provided with a support surface 111. Among them, the substrate 110 plays a supporting role, and its material can be any one of glass, metal, etc., which is not limited in this application.

[0029] The inclined layer 120 is disposed on the support surface 111. The inclined layer 120 is provided with an inclined surface 121 facing away from the substrate 110, and the inclined surface 121 is not parallel to the support surface 111. Among them, the material of the inclined layer 120 is a non-conductive material. Specifically, the inclined surface 121 of the inclined layer 120 is not parallel to the support surface 111 of the substrate 110, and the two have an included angle. At the same time, the inclined layer 120 is a non-conductive layer and cannot conduct electricity.

[0030] The pressurizing electrode 130 is at least partially disposed on the inclined surface 121. Among them, in the direction perpendicular to the inclined surface 121 and away from the substrate 110, the longitudinal section of the pressurizing electrode 130 is trapezoidal in reverse. Specifically, the pressurizing electrode 130 is prepared from a conductive material and can conduct electricity. Among them, the pressurizing electrode 130 can be partially disposed on the inclined surface 121 and partially extend to the substrate 110, or the pressurizing electrode 130 is entirely located on the inclined surface 121, where Figure 1 and Figure 2 the schematic illustration is made with the pressurizing electrode 130 entirely located on the inclined surface 121.

[0031] The conductive layer 140 is at least partially located on the inclined surface 121 on the side of the pressurizing electrode 130 away from the substrate 110, and the conductive layer 140 located on the inclined surface 121 on the side of the pressurizing electrode 130 away from the substrate 110 is in contact with the side wall of the pressurizing electrode 130.

[0032] Specifically, the conductive layer 140 located on the inclined surface 121 on the side of the pressurizing electrode 130 away from the substrate 110 is in contact with the side wall of the pressurizing electrode 130, so that the two are electrically connected, and then the voltage can be applied to the conductive layer 140 by applying a voltage to the pressurizing electrode 130.

[0033] Among them, in addition to part of the conductive layer 140 being disposed on the inclined surface 121 on the side of the pressurizing electrode 130 away from the substrate 110, part of the conductive layer 140 can also be disposed on the surface of the pressurizing electrode 130 on the side facing away from the substrate 110. However, since the longitudinal section of the pressurizing electrode 130 is trapezoidal in reverse in the direction perpendicular to the inclined surface 121 and away from the substrate 110, during the evaporation process of forming the conductive layer 140, due to the shielding of the upper part of the pressurizing electrode 130, the conductive layer 140 on the surface of the pressurizing electrode 130 on the side facing away from the substrate 110 is disconnected from the conductive layer 140 on the inclined surface 121 on the side of the pressurizing electrode 130 away from the substrate 110.

[0034] In addition, a part of the conductive layer 140 may also be located on the inclined surface 121 of the boosting electrode 130 close to the substrate 110. This part of the conductive layer 140 may or may not be in contact with the side wall of the boosting electrode 130, depending on the precision of the process during the preparation.

[0035] The materials of the conductive layer 140 and the boosting electrode 130 may be the same or different, and are not limited herein.

[0036] Referring to Figure 3 , if the above-mentioned inclined layer 120 is not provided and the above-mentioned boosting electrode 130 and conductive layer 140 are arranged on the substrate 110 in the same layer, since the longitudinal section of the boosting electrode 130 is an inverted trapezoid and its bottom is deeply hollowed out, during the preparation process, it is very difficult for the conductive layer 140 to form an overlap with the side wall of the boosting electrode 130, resulting in difficulty in forming an electrical connection between the boosting electrode 130 and the conductive layer 140.

[0037] Thus, it can be seen that compared with the Figure 3 related technology shown, the present application is equivalent to adding an inclined layer 120 between the substrate 110 and the boosting electrode 130. The addition of the inclined layer 120 rotates the boosting electrode 130 by a certain angle. Thus, during the preparation process, the depth of the evaporation material entering the bottom of the boosting electrode 130 is increased, which can improve the success rate of the overlap between the boosting electrode 130 and the conductive layer 140, and further improve the yield of the display panel 100.

[0038] In this embodiment, the display panel 100 is an organic light-emitting diode display panel (OLED display panel), and the conductive layer 140 is used as the cathode layer in the OLED display panel.

[0039] Specifically, the cathode layer in the OLED display panel is usually a continuous and uninterrupted whole film layer, and the cathode layer has a large resistance. Therefore, when the area of the OLED display panel is large, different positions of the cathode layer will generate different IR voltage drops. Specifically, the voltage of the cathode layer farther from the peripheral trace is lower than the voltage of the cathode layer at the edge position, resulting in the brightness in the middle of the OLED display panel being lower than the brightness at the edge of the OLED display panel, and finally resulting in the phenomenon that the middle of the OLED display panel is dark and the surrounding is bright.

[0040] However, the setting of the boosting electrode 130 can solve the problem of the middle of the OLED display panel being dark and the periphery being bright. Specifically, during the manufacturing process, before forming the cathode layer, several boosting electrodes 130 are formed at corresponding positions, and then the cathode layer is deposited by evaporation. Among them, the cathode layer is in contact with the side wall of the boosting electrode 130, so that the cathode layer and the boosting electrode 130 are electrically connected. Subsequently, for the cathode layer far from the peripheral trace, a voltage can be applied to the cathode layer through the boosting electrode 130 to ensure that the voltage drop of the cathode layer far from the peripheral trace is the same or approximately the same as that of the cathode layer close to the peripheral trace, ultimately ensuring uniform brightness display of the OLED display panel.

[0041] As described above, in order to ensure the success rate of the overlap between the cathode layer and the side wall of the boosting electrode 130 in this embodiment, an inclined layer 120 is provided between the boosting electrode 130 and the substrate 110, so that the boosting electrode 130 with a trapezoidal cross-section in the longitudinal direction rotates by a certain angle. Thus, during the manufacturing process, the depth of the evaporation material entering the bottom of the boosting electrode 130 is increased, which can improve the success rate of the overlap between the boosting electrode 130 and the cathode layer, improve the yield of the OLED display panel, and ensure uniform brightness display of the OLED display panel.

[0042] Among them, when multiple boosting electrodes 130 need to be set, an inclined layer 120 can be provided between each boosting electrode 130 and the substrate 110.

[0043] Among them, in order not to affect the normal display of the OLED display panel, the boosting electrode 130 is provided between two adjacent light-emitting units.

[0044] Among them, each light-emitting unit includes an anode layer (not shown in the figure), a second organic layer (not shown in the figure), and a light-emitting material layer (not shown in the figure). At the same time, the first organic layer 170 and the cathode layer (i.e., the conductive layer 140) located on the inclined surface 121 on the side of the boosting electrode 130 away from the substrate 110 extend to the light-emitting material layer.

[0045] Of course, the display panel 100 may also include other film layers such as a PDL layer (adjacent pixel defining layer), which is not limited here.

[0046] Continue to refer to Figure 1 and Figure 2 , in the direction perpendicular to the support surface 111 and away from the substrate 110, the longitudinal cross-section of the inclined layer 120 is a regular trapezoid.

[0047] Specifically, the inclined layer 120 with a regular trapezoid has a stable structure and low manufacturing difficulty. Therefore, setting the longitudinal cross-section of the inclined layer 120 as a regular trapezoid can improve the manufacturing efficiency and the product yield.

[0048] It should be noted that in other embodiments, in a direction perpendicular to the support surface 111 and away from the substrate 110, the longitudinal cross-section of the inclined layer 120 may also be other shapes, such as a triangle, a parallelogram, etc.

[0049] When the inclined layer 120 has a plurality of inclined surfaces 121, a pressurizing electrode 130 may be provided on each inclined surface 121. At this time, the pressurizing electrodes 130 on different inclined surfaces 121 may be electrically connected to the conductive layer 140 simultaneously.

[0050] In this embodiment, the material of the inclined layer 120 includes an organic material. For example, the material of the inclined layer 120 includes a PLN organic glue. Of course, in other embodiments, the material of the inclined layer 120 may also include an inorganic material, or include both an organic material and an inorganic material. At the same time, the inclined layer 120 may be a single-layer structure or a laminated structure, that is, it includes a plurality of sub-layers arranged in a stacked manner.

[0051] In this embodiment, the included angle range between the inclined surface 121 and the support surface 111 is 30° to 45°. For example, the included angle between the inclined surface 121 and the support surface 111 is 30°, 40°, or 45°.

[0052] In summary, the present application does not limit the specific structure and material of the inclined layer 120, as long as the inclined surface 121 is not parallel to the support surface 111 of the substrate 110 and the inclined layer 120 is non-conductive.

[0053] Continue to refer to Figure 2 , the display panel 100 further includes a first protective layer 150 and a second protective layer 160.

[0054] The first protective layer 150 is disposed on the side of the pressurizing electrode 130 facing the substrate 110 and is attached to the pressurizing electrode 130. The second protective layer 160 is disposed on the side of the pressurizing electrode 130 facing away from the substrate 110 and is attached to the pressurizing electrode 130.

[0055] Specifically, the first protective layer 150 and the second protective layer 160 are respectively disposed on two opposite sides of the pressurizing electrode 130, which can protect the pressurizing electrode 130 and prevent the pressurizing electrode 130 from being corroded by external water, oxygen, etc.

[0056] In this embodiment, as Figure 2 shown, the surface of the first protective layer 150 facing the pressurizing electrode 130 matches the surface of the pressurizing electrode 130 facing the first protective layer 150, and the surface of the second protective layer 160 facing the pressurizing electrode 130 matches the surface of the pressurizing electrode 130 facing the second protective layer 160.

[0057] However, in other embodiments, the first protective layer 150 covers the boost electrode 130 and extends outside the boost electrode 130, and / or the second protective layer 160 covers the boost electrode 130 and extends outside the boost electrode 130, for example, Figure 4 In the embodiment, the first protective layer 150, the boost electrode 130 and the second protective layer 160 are arranged in an “I” shape.

[0058] The materials of the first protective layer 150 and the second protective layer 160 may be the same or different. However, in order to reduce the types of materials used in the preparation process and improve the preparation efficiency, the materials of the first protective layer 150 and the second protective layer 160 are the same.

[0059] In one application scenario, the materials of the first protective layer 150 and the second protective layer 160 are both set to indium tin oxide (ITO), and the material of the boost electrode 130 is set to silver (Ag).

[0060] In other application scenarios, the material of the first protective layer 150 and the second protective layer 160 may be set to titanium, and the material of the boost electrode 130 may be set to aluminum.

[0061] In summary, the present application does not limit the materials of the first protective layer 150 , the second protective layer 160 and the boost electrode 130 , as long as the boost electrode 130 is conductive and the first protective layer 150 and the second protective layer 160 can protect the boost electrode 130 .

[0062] Meanwhile, in other implementations, the display panel 100 may not include the first protective layer 150 and the second protective layer 160 , or may include only one of the first protective layer 150 and the second protective layer 160 .

[0063] Continue reading Figure 2 The display panel 100 further includes a first organic layer 170, which is disposed on the side of the conductive layer 140 facing the substrate 110. The material of the first organic layer 170 is not limited in this application. Of course, in other embodiments, the display panel 100 may not include the first organic layer 170.

[0064] Among them, the present application sets the longitudinal section of the boost electrode 130 to be an inverted trapezoid instead of a regular trapezoid in a direction perpendicular to the inclined surface 121 and away from the substrate 110, and has the following beneficial effects:

[0065] Since the climbing ability of the material of the first organic layer 170 is better than that of the material of the conductive layer 140, if the longitudinal section of the boosting electrode 130 is set as a positive trapezoid, the lap joint between the conductive layer 140 and the side wall of the boosting electrode 130 will be blocked by the first organic layer 170, resulting in the inability to lap between the conductive layer 140 and the side wall of the boosting electrode 130. Setting the longitudinal section of the boosting electrode 130 as an inverted trapezoid can avoid this defect.

[0066] Refer to Figure 5 , the display panel 100 further includes a boosting wire 131, and the boosting wire 131 is disposed on the substrate 110 and electrically connected to the boosting electrode 130.

[0067] Specifically, the boosting wire 131 is electrically connected to the boosting electrode 130, so that an external electrical signal can be transmitted to the boosting electrode 130 through the boosting wire 131 and finally transmitted to the conductive layer 140.

[0068] Wherein, when the display panel 100 is an OLED display panel, the conductive layer 140 is used as the cathode layer in the OLED display panel and there are multiple boosting electrodes 130, each boosting electrode 130 can be electrically connected to the common electrode 201 (Common electrode) through its respective boosting wire 131, so that a voltage can be applied to each boosting electrode 130 simultaneously through the common electrode 201.

[0069] Wherein, in order to reduce the types of materials used in the manufacturing process, the boosting wire 131 and the boosting electrode 130 are set to have the same material. Of course, in other embodiments, the materials of the boosting wire 131 and the boosting electrode 130 can also be different, which is not limited herein.

[0070] Wherein, in order to improve the manufacturing efficiency, the boosting electrode 130 and the boosting wire 131 are set to be on the same layer and have the same thickness, so that the boosting electrode 130 and the boosting wire 131 can be formed simultaneously in the same manufacturing process during the manufacturing process.

[0071] For a better understanding of the above solution, refer to Figure 6 , the manufacturing method of the display panel 100 in a specific example is used to further introduce the display panel 100. First, it should be noted that in this specific example, the material of the inclined layer 120 is PLN organic glue, the materials of the first protective layer 150 and the second protective layer 160 are both ITO (indium tin oxide), and the material of the boosting electrode 130 is Ag (silver).

[0072] During the manufacturing process, PLN organic glue is first applied on the substrate 110, and then processes such as exposure, development, and curing are performed on the PLN organic glue to form the inclined layer 120.

[0073] Then, three film layers are formed in sequence, and the materials of these three film layers are ITO, Ag, and ITO in sequence.

[0074] Next, processes such as yellow light exposure, wet etching, and stripping are performed on the three film layers to form a first protective layer 150, a boosting electrode 130, and a second protective layer 160 on the inclined surface 121 of the inclined layer 120.

[0075] Finally, a first organic layer 170 and a conductive layer 140 are formed by evaporation in sequence.

[0076] In the above preparation process, due to the setting of the inclined layer 120, the depth at which the evaporation material enters the bottom of the boosting electrode 130 is increased, which can improve the success rate of the overlap between the boosting electrode 130 and the conductive layer 140, and thus improve the yield of the display panel 100.

[0077] Meanwhile, when the display panel 100 is an OLED display panel and the conductive layer 140 is used as the cathode layer in the OLED display panel, in the above preparation process, after forming the first protective layer 150, the boosting electrode 130, and the second protective layer 160, and before forming the first organic layer 170 and the conductive layer 140, other film layers such as an anode layer, a PDL layer (adjacent pixel definition layer), a second organic layer, and a light-emitting material layer can also be formed.

[0078] It should be noted that the display panel 100 of the present application can be other display panels in addition to the OLED display panel, such as an LCD (Liquid Crystal Display) display panel, etc. Meanwhile, the conductive layer 140 can not only be used as the cathode layer, but can be used as any material layer that can conduct electricity. In short, the application scenario of the display panel 100 in the present application is not limited.

[0079] Refer to Figure 7 , Figure 7 is a schematic structural diagram of an embodiment of the display device of the present application. The display device 400 includes a display panel 410.

[0080] Among them, the display panel 410 has the same structure as the display panel 100 in any of the above embodiments. For details, please refer to the above relevant content and will not be elaborated here.

[0081] Among them, the display device 400 can be any device such as a mobile phone or a computer, and is not limited here.

[0082] The above are only the embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A display panel, characterized in that, the display panel includes: a substrate provided with a support surface; an inclined layer disposed on the support surface, the inclined layer having an inclined surface facing away from the substrate, wherein the material of the inclined layer is a non-conductive material; a boosting electrode, at least partially disposed on the inclined surface, wherein, in a direction perpendicular to the inclined surface and away from the substrate, the longitudinal cross-section of the boosting electrode is an inverted trapezoid; a conductive layer, at least partially located on the inclined surface on the side of the boosting electrode away from the substrate, and the conductive layer on the inclined surface on the side of the boosting electrode away from the substrate is in contact with the side wall of the boosting electrode.

2. The display panel according to claim 1, characterized in that, in a direction perpendicular to the support surface and away from the substrate, the longitudinal cross-section of the inclined layer is a regular trapezoid.

3. The display panel according to claim 1, characterized in that, the material of the inclined layer includes an organic material.

4. The display panel according to claim 1, characterized in that, the included angle range between the inclined surface and the support surface is 30° to 45°.

5. The display panel according to claim 1, characterized in that, the display panel further includes: a first protective layer disposed on the side of the boosting electrode facing the substrate and in contact with the boosting electrode; a second protective layer disposed on the side of the boosting electrode facing away from the substrate and in contact with the boosting electrode.

6. The display panel according to claim 5, characterized in that, the materials of the first protective layer and the second protective layer are the same.

7. The display panel according to claim 5, characterized in that, the materials of the first protective layer and the second protective layer include indium tin oxide.

8. The display panel according to claim 1, characterized in that, the material of the boosting electrode includes silver.

9. The display panel according to claim 1, characterized in that, the display panel further includes: a first organic layer disposed on the side of the conductive layer facing the substrate.

10. The display panel according to claim 1, characterized in that, the display panel further includes: a boosting wire disposed on the substrate and electrically connected to the boosting electrode.

11. The display panel according to claim 10, characterized in that, the material of the boosting wire is the same as that of the boosting electrode.

12. The display panel according to any one of claims 1 to 11, characterized in that, the display panel is an organic light-emitting diode display panel, and the conductive layer serves as the cathode layer in the organic light-emitting diode display panel.

13. The display panel according to claim 12, characterized in that, the display panel further includes: an anode layer disposed on the support surface where the inclined layer is not provided; a second organic layer disposed on the anode layer; a light-emitting material layer disposed on the second organic layer; wherein, the conductive layer on the inclined surface on the side of the boosting electrode away from the substrate extends to the light-emitting material layer.

14. A display device, characterized in that, Comprising a display panel as described in any one of claims 1 to 13.

Images