Display panel and display device

Abstract

The invention provides a display panel and a display device, the display panel is provided with a display area and a non-display area, the non-display area at least partially surrounds the display area, a display panel substrate, a dam, a first packaging layer and a conductive layer, and the dam is arranged on one side of the substrate and located in the non-display area; the first packaging layer is arranged on the side, away from the substrate, of the at least one dam and located in the display area and the non-display area. The conductive layer is arranged on the side, away from the substrate, of the first packaging layer; wherein the conductive layer comprises at least one blocking structure located in the non-display area, and the orthographic projection of the at least one blocking structure on the substrate is at least partially overlapped with the orthographic projection of the at least one dam on the substrate. According to the display panel provided by the invention, the conductive layer is stacked on the first packaging layer, and the blocking structure in the conductive layer cannot be flattened by the first packaging layer, so that the blocking height can be increased on the basis of a dam, the packaging material above the first packaging layer can be effectively prevented from overflowing, and the packaging quality of the display panel is ensured.

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) is an active light-emitting device with a sandwich structure consisting of multiple organic layers and electrodes on both sides. At present, display screens based on AMOLED (Active-matrix organic Light-Emitting Diode) have been commercialized in the fields of smart phones, watches and laptops.

[0003] However, the performance of existing displays needs to be improved.

[0004] In some display panels, auxiliary electrode technology is introduced to effectively improve their performance. Patents CN118742138A, PCT / CN2024 / 107011, and 202411175069.8 record relevant contents of auxiliary electrode technology for reference. Summary of the invention

[0005] In view of this, an object of the present application is to provide a display panel and a display device, which are helpful to improve the anti-overflow effect.

[0006] Based on the above purpose, the present application provides a display panel, the display panel having a display area and a non-display area, the non-display area at least partially surrounding the display area, the display panel further comprising:

[0007] substrate;

[0008] at least one dam, disposed on one side of the substrate and located in the non-display area;

[0009] A first encapsulation layer is disposed on a side of the at least one dam away from the substrate and located in the display area and the non-display area;

[0010] The conductive layer is arranged on a side of the first encapsulation layer away from the substrate, and includes at least one blocking structure located in the non-display area, wherein the orthographic projection of the at least one blocking structure on the substrate at least partially overlaps with the orthographic projection of the at least one dam on the substrate.

[0011] In one embodiment, the conductive layer further includes at least one auxiliary electrode located in the display area, the display panel further includes a plurality of light-emitting units, one side of the substrate is provided, the light-emitting unit located in the display area includes a light-emitting functional layer and a first electrode stacked in a direction away from the substrate, and the at least one auxiliary electrode is electrically connected to the first electrodes of the plurality of light-emitting units;

[0012] Preferably, the first encapsulation layer is also arranged on a side of the plurality of light-emitting units away from the substrate;

[0013] Preferably, the at least one auxiliary electrode and the at least one blocking structure are made of the same material;

[0014] Preferably, a distance between the substrate and a side of the at least one dam facing away from the substrate is greater than a distance between the substrate and a side of the light emitting unit facing away from the substrate.

[0015] In one embodiment, the first encapsulation layer is provided with a plurality of via holes, and the at least one auxiliary electrode is electrically connected to the first electrodes of the plurality of light-emitting units through the plurality of via holes;

[0016] Preferably, the at least one auxiliary electrode comprises one auxiliary electrode, the auxiliary electrodes enclose a first opening, and the orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection of the corresponding first opening on the substrate;

[0017] Preferably, the at least one auxiliary electrode includes a plurality of auxiliary electrodes, and the auxiliary electrodes are electrically connected to the corresponding first electrodes of the light-emitting units through the corresponding via holes.

[0018] In one embodiment, the at least one dam comprises a dam at least partially surrounding the display area; or

[0019] The dam comprises a first dam and a second dam, wherein the second dam is arranged on a side of the first dam away from the display area;

[0020] The at least one blocking structure comprises a first blocking portion and a second blocking portion, an orthographic projection of the first blocking portion on the substrate at least partially overlapping an orthographic projection of the first dam on the substrate;

[0021] The orthographic projection of the second blocking portion on the substrate at least partially overlaps with the orthographic projection of the second dam on the substrate;

[0022] Preferably, in a direction perpendicular to the substrate, the size of the second dam is larger than the size of the first dam;

[0023] Preferably, the distance between the substrate and a side of the second blocking portion facing away from the substrate is greater than the distance between the substrate and a side of the first blocking portion facing away from the substrate.

[0024] In one embodiment, the conductive layer comprises a metal material and / or a non-metallic conductive material;

[0025] Preferably, the conductive layer comprises a composite laminate structure formed of at least two materials;

[0026] Preferably, the material of the conductive layer includes at least one of molybdenum, aluminum, titanium, copper and silver;

[0027] Preferably, the material of the conductive layer includes at least one of indium tin oxide, indium zinc oxide, graphene and carbon nanotubes.

[0028] In one embodiment, in a direction perpendicular to the substrate, the size of the conductive layer is 50-1000 nm;

[0029] Preferably, the orthographic projection of the blocking structure on the substrate is located within the orthographic projection of the dam on the substrate; or, the orthographic projection of the dam on the substrate is located within the orthographic projection of the blocking structure on the substrate.

[0030] In one embodiment, the first encapsulation layer comprises an insulating material;

[0031] Preferably, the orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection of the first encapsulation layer on the substrate;

[0032] Preferably, an orthographic projection of the dam on the substrate is located within an orthographic projection of the first encapsulation layer on the substrate.

[0033] In one embodiment, the display panel further comprises a second encapsulation layer, which is disposed on a side of the first encapsulation layer away from the substrate and at least partially located in the display area; the orthographic projection of the auxiliary electrode on the substrate is located within the orthographic projection of the second encapsulation layer on the substrate;

[0034] Preferably, the second encapsulation layer comprises an organic material;

[0035] Preferably, the dam is arranged on a side of the second encapsulation layer away from the display area;

[0036] Preferably, an orthographic projection of the blocking structure on the substrate has no overlap with an orthographic projection of the second encapsulation layer on the substrate.

[0037] In one embodiment, the display panel further includes a third encapsulation layer, which is disposed on a side of the second encapsulation layer away from the substrate and is located in the display area and the non-display area;

[0038] Preferably, the orthographic projection of the conductive layer on the substrate is located within the orthographic projection of the third encapsulation layer on the substrate;

[0039] Preferably, the third encapsulation layer comprises insulating material.

[0040] Based on the same inventive concept, the present application also discloses a display device, which includes the display panel described above.

[0041] Compared with the prior art, the display panel provided in the present application has a conductive layer superimposed on the first packaging layer. The blocking structure in the conductive layer will not be flattened by the first packaging layer. The blocking height can be increased on the basis of the dam, which can effectively prevent the packaging material above the first packaging layer from overflowing, thereby ensuring the packaging quality of the display panel.

[0042] In addition, under the premise of improving the anti-overflow effect through the blocking structure, a dam can be set in the non-display area to reduce the border size of the display panel and achieve a narrower border.

[0043] Furthermore, the conductive layer is reused as an auxiliary electrode in the display area, and the existing auxiliary electrode process-related processes can be utilized without adding processes. This can improve the overflow prevention function while avoiding problems such as increased costs and extended production cycles caused by adding processes, thereby improving production efficiency and product manufacturability. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0045] Figure 1 is a schematic diagram of a related display panel;

[0046] Figure 2 is a schematic diagram of a film layer structure of a related display panel;

[0047] Figure 3 A schematic diagram of a film structure of a display panel in an embodiment of the present application;

[0048] Figure 4 A schematic diagram of a film structure of a display area of ​​a display panel in an embodiment of the present application;

[0049] Figure 5 A schematic diagram of the structure of a display area of ​​a display panel in an embodiment of the present application;

[0050] Figure 6 A schematic diagram of a film structure of a display panel in another embodiment of the present application;

[0051] Figure 7 A schematic diagram of the film layer structure of a display panel in another embodiment of the present application.

[0052] Marking Description:

[0053] 100, display panel; 101, display area; 102, non-display area;

[0054] 1. Substrate; 2. Dam; 21. First dam; 22. Second dam; 3. Light-emitting unit; 31. Second electrode; 32. Light-emitting functional layer; 33. First electrode; 41. First packaging layer; 410. Via hole; 42. Second packaging layer; 43. Third packaging layer; 5. Conductive layer; 51. Blocking structure; 511. First blocking portion; 512. Second blocking portion; 52. Auxiliary electrode; 520. First opening. DETAILED DESCRIPTION

[0055] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0056] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0057] Please refer to Figure 1 , Figure 2As shown, a related stretchable display panel 100 includes a display area 101 and a non-display area 102 surrounding the display area 101. The display panel 100 includes a substrate 1 and a dam 2 arranged on one side of the substrate 1, and a first encapsulation layer 41, a second encapsulation layer 42 and a third encapsulation layer 43 stacked in sequence in a direction away from the substrate 1. Among them, a light-emitting unit 3 is arranged in the display area 101, and the first encapsulation layer 41 is located in the display area 101 and the non-display area 102, and covers the light-emitting unit 3 and the dam 2 at the same time. The second encapsulation layer 42 is mainly located in the display area 101, and the dam 2 is located in the non-display area 102, which is used to prevent the organic material of the second encapsulation layer 42 from overflowing.

[0058] In addition, in the related art, an insulating layer is disposed above the cathode of the light-emitting unit 3, an auxiliary electrode is disposed on the insulating layer, and the auxiliary electrode is connected to the cathode via hole to provide a cathode potential when the cathode is isolated.

[0059] After long-term research, the inventors found that the first encapsulation layer 41 will flatten the dam structure after covering the dam 2, which will reduce the anti-overflow effect to a certain extent. In addition, two dams 2 are usually set in the non-display area 102 to form a double dam design to ensure the anti-overflow effect, but this will increase the border width of the display panel.

[0060] Based on this, the present application provides a display panel solution to solve the above problems.

[0061] Please refer to Figure 3 As shown, a display panel 100 provided by an embodiment of the present application is provided. The display panel 100 has a display area 101 and a non-display area 102, and the non-display area 102 at least partially surrounds the display area 101. The display panel 100 includes a substrate 1, at least one dam 2, a first encapsulation layer 41, and a conductive layer 5, wherein the number of the dams 2 is one or more, and they are arranged on one side of the substrate 1, and the dams 2 are located in the non-display area 102. The first encapsulation layer 41 is arranged on the side of at least one dam 2 away from the substrate 1, and the first encapsulation layer 41 is located in the display area 101 and the non-display area 102. The conductive layer 5 is arranged on the side of the first encapsulation layer 41 away from the substrate 1, wherein the conductive layer 5 includes a blocking structure 51, and the number of the blocking structure 51 is the same as that of the dam 2, which is also one or more. The blocking structure 51 corresponds to the dam 2 one by one, and the blocking structure 51 is located in the non-display area 102, and the orthographic projection of one or more blocking structures 51 on the substrate 1 overlaps at least partially with the orthographic projection of the corresponding dam 2 on the substrate 1.

[0062] Specifically, the conductive layer 5 is stacked on the first encapsulation layer 41, and the downward projection of the blocking structure 51 in the non-display area 102 can cover part or all of the dam 2. At the same time, the auxiliary electrode 52 in the display area 101 is arranged in the same layer as the blocking structure 51, which can provide a cathode potential. The non-display area 102 can be a frame area.

[0063] The display panel 100 provided in this embodiment has a conductive layer 5 superimposed on the first encapsulation layer 41. The blocking structure 51 in the conductive layer 5 will not be flattened by the first encapsulation layer 41, and the blocking structure 51 is arranged above the dam 2, which can increase the blocking height, make the overflow path longer, and increase the difficulty, and can effectively prevent the encapsulation material above the first encapsulation layer 41 from overflowing, thereby ensuring the encapsulation quality of the display panel. In addition, under the premise of improving the anti-overflow effect by the blocking structure 51, a single dam 2 can be arranged in the non-display area 102, which can reduce the frame size of the display panel 100 compared with the double dam design, and achieve a narrower frame.

[0064] At the same time, the conductive layer 5 is reused as the auxiliary electrode 52 in the display area 101, and the existing auxiliary electrode process-related processes can be utilized without adding processes. This can improve the overflow prevention function while avoiding the problems of increased costs and extended production cycles caused by adding processes, thereby improving production efficiency and product manufacturability.

[0065] Reference Figure 4 , Figure 5 As shown, in one embodiment, the conductive layer 5 further includes at least one auxiliary electrode 52, and the auxiliary electrode 52 is located in the display area 101. The display panel 100 includes a plurality of light-emitting units 3 located in the display area 101, the light-emitting units 3 are arranged on one side of the substrate 1, and the light-emitting units 3 include a second electrode 31, a light-emitting functional layer 32, and a first electrode 33 stacked in a direction away from the substrate 1, and at least one auxiliary electrode 52 is electrically connected to the first electrodes 33 of the plurality of light-emitting units 3.

[0066] Preferably, the first encapsulation layer 41 is also disposed on a side of the plurality of light-emitting units 3 away from the substrate, so as to protect the light-emitting units 3 in the display area 101 .

[0067] Preferably, the materials of each auxiliary electrode 52 and each blocking structure 51 are the same. During the preparation process, the blocking structure 51 and the auxiliary electrode 52 are made of the same layer, that is, the conductive layer 5 is reused as the auxiliary electrode 52 in the display area 101, and the existing auxiliary electrode process-related processes can be used without adding processes, thereby achieving the improvement of the overflow prevention function while avoiding the problems of cost increase and production cycle extension caused by adding processes, thereby improving the production efficiency and the manufacturability of the product.

[0068] Preferably, the distance between the side of the dam 2 facing away from the substrate 1 and the substrate 1 is greater than the distance between the side of the light emitting unit 3 facing away from the substrate 1 and the substrate. Taking the vertical direction of the substrate 1 as the up and down direction, the height of the dam 2 is higher than the height of the light emitting unit 3, which can prevent overflow.

[0069] Reference Figure 4 , Figure 5 As shown, in one embodiment, a plurality of via holes 410 are formed on the first packaging layer 41 , and the auxiliary electrode 52 is electrically connected to the first electrodes 33 of the plurality of light-emitting units 3 through the plurality of via holes 410 .

[0070] In one embodiment, an auxiliary electrode 52 is used, and the auxiliary electrode 52 encloses a plurality of first openings 520. The auxiliary electrode 52 may be a mesh structure, and the orthographic projection of the light-emitting unit 3 on the substrate 1 is located within the orthographic projection of the corresponding first opening 520 on the substrate 1. The first opening 520 is a mesh of the mesh structure, and its opening size is larger than the light-emitting unit 3 to avoid affecting the light-emitting effect of the light-emitting unit 3. The mesh structure of the auxiliary electrode 52 can reduce the resistance of electrode access and routing, improve the potential uniformity, and avoid the problem of uneven potential distribution in the entire display area caused by large resistance.

[0071] In another embodiment, multiple auxiliary electrodes 52 may be used. The auxiliary electrodes 52 correspond to the via holes 410 one by one. The multiple auxiliary electrodes 52 are electrically connected to the first electrodes 33 of the corresponding light-emitting units 3 through the corresponding via holes 410 .

[0072] Exemplarily, the light emitting units 3 of different colors include a light emitting unit R, a light emitting unit B, and a light emitting unit G. The first electrode 33 is a cathode, and the second electrode 31 is an anode.

[0073] Reference Figure 7 As shown, in one embodiment, a dam 2 is used, and the dam 2 at least partially surrounds the display area 101. The single dam 2 is arranged in the non-display area 102, and the frame size of the display panel 100 can be reduced compared with the double dam design, so as to achieve a narrower frame. Figure 6 As shown, in another embodiment, at least one bank 2 includes a first bank 21 and a second bank 22, the first bank 21 and the second bank 22 at least partially surround the display area 101, and the second bank 22 is arranged on a side of the first bank 21 away from the display area 101. Accordingly, the blocking structure 51 includes a first blocking portion 511 and a second blocking portion 512, and the orthographic projection of the first blocking portion 511 on the substrate 1 at least partially overlaps with the orthographic projection of the first bank 21 on the substrate 1. The orthographic projection of the second blocking portion 512 on the substrate 1 at least partially overlaps with the orthographic projection of the second bank 22 on the substrate 1.

[0074] A double dam structure is adopted, and a first blocking portion 511 and a second blocking portion 512 are respectively disposed above the first dam 21 and the second dam 22 to form double protection, which can better prevent the organic material used for packaging from overflowing during the packaging process.

[0075] Optionally, in a direction perpendicular to the substrate 1 , the size of the second bank 22 is greater than the size of the first bank 21 . That is, the height of the second bank 22 is greater than the height of the first bank 21 .

[0076] Optionally, the distance between the second barrier 512 and the substrate 1, which is away from the substrate 1, is greater than the distance between the first barrier 511 and the substrate 1, which is away from the substrate 1. That is, the height of the second barrier 512 is greater than the height of the first barrier 511. The second dam 22 and the second barrier 512 are arranged at the outer side of the first dam 21, which can further enhance the anti-overflow effect and provide more reliable protection for the packaging of the display panel.

[0077] In some embodiments, the conductive layer 5 can be made of a metal material, such as one of molybdenum (Mo), aluminum (Al), titanium (Ti), copper (Cu), and silver (Ag), or a non-metallic conductive material, such as one of indium tin oxide (ITO), indium zinc oxide (IZO), graphene, and carbon nanotubes. Of course, the conductive layer 5 can be a composite laminated structure of at least two different materials.

[0078] The conductive layer 5 has good conductivity to realize the auxiliary electrode function, and the material can be flexibly selected according to the requirements of different application scenarios. For example, transparent conductive materials such as indium tin oxide and indium zinc oxide can be selected in scenarios where transparency is required, while metal materials or their composite laminates can be selected when high conductivity and stability are required.

[0079] In some embodiments, in a direction perpendicular to the substrate 1, the size of the conductive layer 5 is 50-1000 nm. For example, the thickness of the conductive layer 5 may be 50 nm, 100 nm, 500 nm, 800 nm, 1000 nm, etc.

[0080] In addition, optionally, in the direction parallel to the substrate 1, the width of the blocking structure 51 may be smaller than the width of the corresponding dam 2, or may be larger than the width of the corresponding dam 2. That is, the orthographic projection of the blocking structure 51 on the substrate 1 is located within the orthographic projection of the dam 2 on the substrate 1. Alternatively, the orthographic projection of the dam 2 on the substrate 1 is located within the orthographic projection of the blocking structure 51 on the substrate 1.

[0081] Specifically, during the design and manufacturing process of the display panel, the size of the conductive layer 5 can be precisely adjusted according to the requirements of the specific product and the process conditions. When space is limited, a smaller conductive layer 5 can be selected to meet design requirements such as a narrow frame without affecting its anti-overflow and auxiliary electrode functions. For products with higher requirements for electrical performance or anti-overflow effects, a larger conductive layer 5 with a suitable thickness can be used to ensure a stable cathode potential distribution and a better anti-overflow effect.

[0082] Reference Figure 4 , Figure 5 As shown, in one embodiment, the first encapsulation layer 41 includes an insulating material. The orthographic projection of the light emitting unit on the substrate 1 and the orthographic projection of the dam 2 on the substrate 1 are respectively located within the orthographic projection of the first encapsulation layer 41 on the substrate 1 .

[0083] The first encapsulation layer 41 is an encapsulation layer formed by a chemical vapor deposition (CVD) method, which covers the light emitting unit 3 located in the display area 101 and the dam 2 located in the non-display area 102 and has a certain planarization effect.

[0084] Reference Figure 3 , Figure 4 , Figure 6 As shown, in some embodiments, the display panel 100 further includes a second encapsulation layer 42, which is disposed on a side of the first encapsulation layer 41 away from the substrate 1, and the second encapsulation layer 42 is at least partially located in the display area 101, and the orthographic projection of the auxiliary electrode 52 on the substrate 1 is located within the orthographic projection of the second encapsulation layer 42 on the substrate 1. The second encapsulation layer 42 includes an organic material.

[0085] Optionally, the dam 2 is disposed on a side of the second encapsulation layer 42 away from the display area 101. The orthographic projection of the blocking structure 51 on the substrate 1 does not overlap with the orthographic projection of the second encapsulation layer 42 on the substrate 1. In this way, the dam 2 and the blocking structure 51 together block the outer side of the second encapsulation layer 42, that is, the side close to the non-display area 102, and can prevent the organic material of the second encapsulation layer 42 from overflowing outward.

[0086] Specifically, the second encapsulation layer 42 is mainly located in the display area 101 and covers the auxiliary electrode 52. The second encapsulation layer 42 is specifically an encapsulation layer formed by inkjet printing (IJP, Ink-Jet Printing), has good fluidity and formability, and can be accurately covered in a specific area of ​​the display panel 100 for encapsulation protection to prevent external water vapor, oxygen and other harmful factors from eroding the internal display structure.

[0087] Continue to refer to Figure 3 , Figure 4 , Figure 6As shown, in some embodiments, the display panel 100 further includes a third encapsulation layer 43 , which is disposed on a side of the second encapsulation layer 42 away from the substrate 1 , and is located in the display area 101 and the non-display area 102 .

[0088] Optionally, the orthographic projection of the conductive layer 5 on the substrate 1 is located within the orthographic projection of the third encapsulation layer 43 on the substrate 1 . That is, the third encapsulation layer 43 covers various parts of the conductive layer 5 .

[0089] Optionally, the third encapsulation layer 43 includes an insulating material. The first encapsulation layer 41 and the third encapsulation layer 43 are inorganic layers, and the inorganic layers have high density to isolate water and oxygen. The second encapsulation layer 42 is an organic layer, so it has a large thickness to flatten the surface of the display panel, and realizes inorganic-organic-inorganic three-layer encapsulation.

[0090] Based on the same inventive concept, another embodiment of the present application further discloses a display device, which includes the display panel in the above embodiment. Further, the display device includes a mobile phone, VR equipment, computer, television, car display equipment, etc.

[0091] The display device provided in this embodiment has a display panel 100 in which a blocking structure 51 is superimposed on a first encapsulation layer 41 to prevent the blocking structure 51 from being flattened by the first encapsulation layer 41, thereby increasing the blocking height, making the overflow path longer and more difficult, and effectively preventing the encapsulation material above the first encapsulation layer 41 from overflowing, thereby ensuring the encapsulation quality of the display panel. In addition, under the premise of improving the anti-overflow effect by the blocking structure 51, a single dam 2 can be set in the non-display area 102, which can reduce the frame size of the display panel 100 and achieve a narrower frame compared to the double dam design.

[0092] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0093] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0094] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A display panel, characterized in that: The display panel has a display area and a non-display area, and the non-display area at least partially surrounds the display area; the display panel includes: substrate; at least one dam, disposed on one side of the substrate and located in the non-display area; A first encapsulation layer is disposed on a side of the at least one dam away from the substrate and located in the display area and the non-display area; The conductive layer is arranged on a side of the first encapsulation layer away from the substrate, and includes at least one blocking structure located in the non-display area, wherein the orthographic projection of the at least one blocking structure on the substrate at least partially overlaps with the orthographic projection of the at least one dam on the substrate.

2. The display panel according to claim 1, characterized in that: The conductive layer further includes at least one auxiliary electrode located in the display area, and the display panel further includes: A plurality of light-emitting units are arranged on one side of the substrate and located in the display area, the light-emitting units include a light-emitting functional layer and a first electrode which are sequentially stacked in a direction away from the substrate, and the at least one auxiliary electrode is electrically connected to the first electrodes of the plurality of light-emitting units; Preferably, the first encapsulation layer is also arranged on a side of the plurality of light-emitting units away from the substrate; Preferably, the at least one auxiliary electrode and the at least one blocking structure are made of the same material; Preferably, a distance between the substrate and a side of the at least one dam facing away from the substrate is greater than a distance between the substrate and a side of the light emitting unit facing away from the substrate.

3. The display panel according to claim 2, characterized in that: The first encapsulation layer is provided with a plurality of via holes, and the at least one auxiliary electrode is electrically connected to the first electrodes of the plurality of light-emitting units through the plurality of via holes; Preferably, the at least one auxiliary electrode comprises one auxiliary electrode, the auxiliary electrodes enclose a plurality of first openings, and the orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection of the corresponding first opening on the substrate; Preferably, the at least one auxiliary electrode includes a plurality of auxiliary electrodes, and the auxiliary electrodes are electrically connected to the corresponding first electrodes of the light-emitting units through the corresponding via holes.

4. The display panel according to claim 1, characterized in that: The at least one dam comprises a dam at least partially surrounding the display area; or, The at least one dam includes a first dam and a second dam, the first dam and the second dam at least partially surround the display area, and the second dam is arranged on a side of the first dam away from the display area; Preferably, the at least one blocking structure comprises a first blocking portion and a second blocking portion, wherein an orthographic projection of the first blocking portion on the substrate at least partially overlaps with an orthographic projection of the first dam on the substrate; an orthographic projection of the second blocking portion on the substrate at least partially overlaps with an orthographic projection of the second dam on the substrate; Preferably, in a direction perpendicular to the substrate, the size of the second dam is larger than the size of the first dam; Preferably, the distance between the substrate and a side of the second blocking portion facing away from the substrate is greater than the distance between the substrate and a side of the first blocking portion facing away from the substrate.

5. The display panel according to claim 1, characterized in that: The conductive layer comprises a metal material and / or a non-metallic conductive material; Preferably, the conductive layer comprises a composite laminate structure formed of at least two materials; Preferably, the material of the conductive layer includes at least one of molybdenum, aluminum, titanium, copper and silver; Preferably, the material of the conductive layer includes at least one of indium tin oxide, indium zinc oxide, graphene and carbon nanotubes.

6. The display panel according to claim 1, characterized in that: In a direction perpendicular to the substrate, the size of the conductive layer is 50-1000 nm; Preferably, the orthographic projection of the blocking structure on the substrate is located within the orthographic projection of the dam on the substrate; or, the orthographic projection of the dam on the substrate is located within the orthographic projection of the blocking structure on the substrate.

7. The display panel according to claim 2, characterized in that: The first encapsulation layer comprises an insulating material; Preferably, the orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection of the first encapsulation layer on the substrate; Preferably, an orthographic projection of the dam on the substrate is located within an orthographic projection of the first encapsulation layer on the substrate.

8. The display panel according to claim 2, characterized in that: The display panel further includes a second encapsulation layer, which is disposed on a side of the first encapsulation layer away from the substrate and at least partially located in the display area; the orthographic projection of the auxiliary electrode on the substrate is located within the orthographic projection of the second encapsulation layer on the substrate; Preferably, the second encapsulation layer comprises an organic material; Preferably, the dam is arranged on a side of the second encapsulation layer away from the display area; Preferably, an orthographic projection of the blocking structure on the substrate has no overlap with an orthographic projection of the second encapsulation layer on the substrate.

9. The display panel according to claim 8, characterized in that: The display panel further includes a third encapsulation layer, which is disposed on a side of the second encapsulation layer away from the substrate and is located in the display area and the non-display area; Preferably, the orthographic projection of the conductive layer on the substrate is located within the orthographic projection of the third encapsulation layer on the substrate; Preferably, the third encapsulation layer comprises insulating material.

10. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-9.

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