Display panel, manufacturing method thereof, and display terminal

Abstract

The present application provides a display panel, a manufacturing method thereof, and a display terminal; the display panel includes a substrate, a pixel definition layer disposed on the substrate, a light-emitting device layer disposed on the pixel definition layer, and at least one support wall. The pixel definition layer includes a plurality of first openings arranged in an array and second openings located on at least one side of the first openings, and the first openings and the second openings are separated. The light-emitting device layer includes a plurality of light-emitting devices disposed in the plurality of first openings, and the support wall is disposed in the second openings. In the light-emitting direction of the display panel, the height of the support wall is greater than the height of the pixel definition layer. By providing a support wall with a height greater than that of the pixel definition layer, the mask plate does not contact the surface of the pixel definition layer, so as to avoid or reduce the problem of packaging failure caused by particles generated by friction between the mask plate and the surface of the pixel definition layer during the alignment process of the mask plate, and further effectively reduce display abnormalities such as small black dots caused by packaging failure.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and particularly to a display panel, a manufacturing method thereof, and a display terminal. Background Art

[0002] At present, OLED display panels usually use evaporation processes to deposit light-emitting materials. During this process, a mask plate is required to deposit evaporation materials within the light-emitting regions. Among them, the pixel definition layer of the OLED display panel not only defines the light-emitting regions but also plays a supporting role for the mask plate.

[0003] However, during the alignment process of the mask plate, the mask plate easily scratches the surface of the pixel definition layer, causing particulate matter to be generated on its surface. If the volume of the particulate matter is too large, the subsequently deposited encapsulation film layer may not be able to wrap the particulate matter, resulting in encapsulation failure. Water and oxygen molecules will invade the light-emitting materials along the inside of the pixel definition layer, leading to display anomalies such as small black dots. Summary of the Invention

[0004] The present application provides a display panel, a manufacturing method thereof, and a display terminal to improve the technical problem that the current OLED display panel has encapsulation failure due to particulate matter formed by the friction between the mask plate and the pixel definition layer, and further generates display anomalies such as small black dots.

[0005] To solve the above technical problems, the technical solutions provided by the present application are as follows:

[0006] The present application provides a display panel, including:

[0007] A substrate;

[0008] A pixel definition layer disposed on the substrate, the pixel definition layer including a plurality of first openings arranged in an array and second openings located on at least one side of the first openings, the first openings and the second openings being separately disposed;

[0009] A light-emitting device layer disposed on the pixel definition layer, the light-emitting device layer including a plurality of light-emitting devices disposed in the plurality of first openings; and

[0010] At least one support wall disposed in the second openings;

[0011] Wherein, in the light-emitting direction of the display panel, the height of the support wall is greater than the height of the pixel definition layer.

[0012] In the display panel of the present application, in the top view of the display panel, the orthographic projection area of the support wall is less than or equal to the area of the second opening.

[0013] In the display panel of the present application, in the top view of the display panel, the support wall is separately disposed from the pixel defining layer.

[0014] In the display panel of the present application, in the connection direction of two adjacent light-emitting devices, the ratio of the width of the support wall to the width of the second opening is 1 / 3 to 1 / 2.

[0015] In the display panel of the present application, in the light-emitting direction of the display panel, the ratio of the height of the support wall to the height of the pixel defining layer is 1.1 to 1.5.

[0016] In the display panel of the present application, the display panel further includes an anti-scratch layer disposed on the surface of the support wall and / or the pixel defining layer, and the surface friction coefficient of the anti-scratch layer is less than the surface friction coefficients of the support wall and the anti-scratch layer.

[0017] In the display panel of the present application, the display panel further includes a first encapsulation layer disposed on the pixel defining layer, and the first encapsulation layer is continuously disposed on the surfaces of the light-emitting devices, the pixel defining layer, and the support wall.

[0018] In the display panel of the present application, at least one of the support wall and the pixel defining layer includes nano-doped particles, and the nano-doped particles are inorganic oxides.

[0019] The present application also provides a method for manufacturing a display panel, including:

[0020] Providing a substrate;

[0021] Forming a pixel defining layer on the substrate, and defining a plurality of first openings arranged in an array and second openings located on at least one side of the first openings on the pixel defining layer, and the first openings and the second openings are separately disposed;

[0022] Forming at least one support wall in the second opening, and making the height of the support wall greater than the height of the pixel defining layer;

[0023] Forming a light-emitting device layer including a plurality of light-emitting devices on the pixel defining layer, and the plurality of light-emitting devices are located in the plurality of first openings;

[0024] Forming an encapsulation layer on the light-emitting device layer.

[0025] The present application also provides a display terminal, including a terminal body and the display panel, and the terminal body and the display panel are integrated as one.

[0026] Beneficial effects

[0027] In this application, a second opening is provided on the pixel definition layer, and a support wall with a height greater than that of the pixel definition layer is provided in the second opening. The support wall supports the mask plate during the manufacturing process of the display panel, so that the mask plate does not contact the surface of the pixel definition layer, thereby avoiding or reducing the problem of encapsulation failure caused by particles generated by friction between the mask plate and the surface of the pixel definition layer during the alignment process of the mask plate, and effectively reducing display anomalies such as small black dots caused by encapsulation failure. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of this application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 is a schematic diagram of the first stacked structure of the display panel described in this application;

[0030] Figure 2 is a schematic diagram of a planar structure of the support wall described in this application;

[0031] Figure 3 is a schematic diagram of the second stacked structure of the display panel described in this application;

[0032] Figure 4 is a flowchart of the manufacturing method of the display panel described in this application;

[0033] Figures 5 to 9 is a schematic diagram of the manufacturing process of the display panel described in this application.

[0034] Description of the Reference Numerals:

[0035] Substrate 100, Array Driving Layer 200, Planarization Layer 300, Pixel Definition Layer 400, First Opening 410, Second Opening 420, Support Wall 500, Light-Emitting Device 600, Anode Layer 610, Organic Light-Emitting Layer 620, Cathode Layer 630, Anti-Scratch Layer 700, Nano-Doped Particles 800, Encapsulation Layer 900, First Encapsulation Layer 910, Second Encapsulation Layer 920, Third Encapsulation Layer 930. Detailed Embodiments

[0036] 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. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts belong to the scope of protection of the present application. In addition, it should be understood that the specific implementation manners described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the orientation words such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, specifically the drawing direction in the accompanying drawings; and "inner" and "outer" refer to the outline of the device.

[0037] At present, OLED display panels usually use evaporation processes to deposit light-emitting materials. During this process, a mask plate is required to deposit evaporation materials in the light-emitting area. Among them, the pixel definition layer of the OLED display panel not only defines the light-emitting area, but also can support the mask plate. However, during the alignment process of the mask plate, the mask plate is likely to scratch the surface of the pixel definition layer and generate particulate matter on its surface. If the volume of the particulate matter is too large, the subsequently deposited encapsulation film layer may not be able to wrap the particulate matter, resulting in encapsulation failure. Water and oxygen molecules will invade the light-emitting material along the inside of the pixel definition layer, leading to display anomalies such as small black dots. The present application proposes the following solutions based on the above technical problems.

[0038] Please refer to Figures 1 to 3 , the present application provides a display panel, including a substrate 100, a pixel definition layer 400 disposed on the substrate 100, a light-emitting device 600 layer disposed on the pixel definition layer 400, and at least one support wall 500. The pixel definition layer 400 includes a plurality of first openings 410 arranged in an array and second openings 420 located on at least one side of the first openings 410. The first openings 410 and the second openings 420 are separated. The light-emitting device 600 layer includes a plurality of light-emitting devices 600 disposed in the plurality of first openings 410. The support wall 500 is disposed in the second openings 420. In the light-emitting direction of the display panel, the height of the support wall 500 is greater than the height of the pixel definition layer 400.

[0039] In this application, a second opening 420 is provided on the pixel definition layer 400, and a support wall 500 with a height greater than that of the pixel definition layer 400 is provided in the second opening 420. The support wall 500 supports the mask plate during the manufacturing process of the display panel, so that the mask plate does not contact the surface of the pixel definition layer 400, thereby avoiding or reducing the packaging failure problem caused by particulate matter generated by friction between the mask plate and the surface of the pixel definition layer 400 during the alignment process of the mask plate, and effectively reducing display anomalies such as small black dots caused by packaging failure. Moreover, even if relatively large particulate matter is generated on the friction surface between the support wall 500 and the mask plate, resulting in packaging failure, water and oxygen molecules need to diffuse from the support wall 500, which is farther from the light-emitting device 600, to the pixel definition layer 400 adjacent to the light-emitting device 600. Compared with the conventional design, the structure in this application can increase the penetration path of water and oxygen molecules to the light-emitting device 600 to a certain extent, thereby increasing the penetration difficulty, and effectively improving display anomalies such as small black dots caused by the erosion of the light-emitting device 600 by water and oxygen molecules.

[0040] The technical solution of this application will now be described in conjunction with specific embodiments. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments.

[0041] In this embodiment, the substrate 100 may be a transparent glass substrate, a polyimide substrate, a polyester substrate, or the like.

[0042] In this embodiment, the material of the pixel definition layer 400 may be an opaque dielectric material, such as silicon nitride (SiNx), silicon oxide (SiOx) material, or the like.

[0043] In this embodiment, the material of the support wall 500 may be the same as or different from that of the pixel definition layer 400. When the material of the support wall 500 is the same as that of the pixel definition layer 400, the support wall 500 may be defined and formed on the pixel definition layer 400, that is, on the pixel definition layer 400, a method similar to that of defining the first opening 410 is used to define the support wall 500 on at least one side of the first opening 410, and the support wall 500 is separated from the first opening 410. When the material of the support wall 500 is different from that of the pixel definition layer 400, the pixel definition layer 400 and the support wall 500 may be formed successively through different manufacturing processes.

[0044] In this embodiment, the light-emitting device 600 layer may be an organic electroluminescent material layer (Organic Light-Emitting Diode, LED), and the light-emitting device 600 is an OLED device.

[0045] In this embodiment, the first opening 410 is the pixel opening, and the light-emitting device 600 is disposed as a light-emitting pixel in the pixel opening.

[0046] In this embodiment, the separate arrangement of the second opening 420 and the first opening 410 can be understood as follows: there is no connection between the first opening 410 and the second opening 420, or rather, the first opening 410 and the second opening 420 are separated by the pixel definition layer 400.

[0047] Please refer to Figure 2 , in the display panel of the present application, in the top view of the display panel, the orthographic projection area of the support wall 500 can be less than or equal to the area of the second opening 420.

[0048] In this embodiment, when the area of the support wall 500 is equal to the area of the second opening 420, the support wall 500 can completely fill the second opening 420, that is to say, the support wall 500 can be in contact connection with the pixel definition layer 400 on its peripheral side. At this time, if the support wall 500 and the pixel definition layer 400 are made of the same material, then the support wall 500 and the pixel definition layer 400 can be integrally formed. By setting photoresist with different thicknesses for exposure and development, the pixel definition layer 400 and the support wall 500 with only different heights can be formed.

[0049] In this embodiment, when the area of the support wall 500 is less than the area of the second opening 420, the support wall 500 is not sufficient to completely fill the second opening 420, that is to say, there is a gap between the support wall 500 and the pixel definition layer 400 on at least one side, or rather, the support wall 500 is separated from the pixel definition layer 400 on at least one side. At this time, even if large particles are generated due to wear on the surface of the support wall 500, resulting in package failure, the gap between the support wall 500 and the pixel definition layer 400 can, to a certain extent, prevent water and oxygen molecules from penetrating into the light-emitting device 600, thereby further reducing the problem of abnormal light emission caused by water and oxygen erosion of the light-emitting device 600.

[0050] In this embodiment, the planar pattern of the support wall 500 in the top view direction of the display panel can be dot-shaped or linear. When the planar pattern of the support wall 500 is dot-shaped, the actual shape of the support wall 500 can include, but is not limited to, a cylinder, a frustum of a cone, a prism, a frustum of a pyramid, etc. whose center line is parallel to the light-emitting direction of the display panel. When the planar pattern of the support wall 500 is linear, the actual shape of the support wall 500 can include, but is not limited to, a cuboid, a frustum of a pyramid, etc. extending in a direction parallel to the display panel.

[0051] Please refer toFigure 2 In this embodiment, preferably, the planar graph of the support wall 500 in the top view direction of the display panel is linear. That is, the actual shape of the support wall 500 can be a frustum extending along the direction parallel to the display panel, and the support wall 500 is separately arranged from the pixel definition layers 400 on both sides. Further, two adjacent light-emitting devices 600 can share one support wall 500, and the support walls 500 on the peripheral side of one light-emitting device 600 can be continuously arranged to form an annular structure surrounding the light-emitting device 600.

[0052] Through the above settings in this embodiment, the support wall 500 can not only stably support the mask plate used in the manufacturing process of the display panel, but also effectively reduce the problem of water and oxygen erosion caused by the encapsulation failure due to particulate matter generated by the friction between the mask plate and the surface of the support wall 500.

[0053] In this embodiment, among the multiple light-emitting devices 600 arranged in an array, the support wall 500 can be arranged on the peripheral side of each light-emitting device 600, and two adjacent light-emitting devices 600 share one support wall 500. Thus, a sufficient number of support walls 500 can provide stable support for the mask plate.

[0054] In this embodiment, the support wall 500 can also be arranged only on the peripheral side of some of the light-emitting devices 600. That is to say, the support wall 500 does not necessarily correspond to each light-emitting device 600. Thus, on the premise of ensuring the stable support performance for the mask plate, the number of the support walls 500 can be reduced as much as possible, thereby improving the problem that the distance between two adjacent light-emitting devices 600 increases due to the arrangement of the support wall 500, resulting in difficulty in improving the pixel resolution.

[0055] Please refer to Figure 2 and Figure 3 , in the display panel of the present application, in the connection direction of two adjacent light-emitting devices 600, the ratio of the width d1 of the support wall 500 to the width d2 of the second opening 420 can be 1 / 3 to 1 / 2, so that the support wall 500 has a high support strength and a moderate distance from the pixel definition layer 400. On the premise of having a good ability to block water and oxygen penetration, the adverse effects such as the reduction of the resolution caused by the increase of the width of the pixel definition layer 400 can also be reduced.

[0056] In this embodiment, in the light-emitting direction of the display panel, the ratio of the height h1 of the support wall 500 to the height h2 of the pixel defining layer 400 may be 1.1 to 1.5, so that there is an appropriate height difference between the support wall 500 and the pixel defining layer 400. During the manufacturing process of the display panel, this height difference can not only ensure that the mask plate placed on the support wall 500 does not contact the pixel defining layer 400, but also better control the increase in the thickness of the display panel caused by the setting of the support wall 500, and as much as possible achieve the thinning of the display panel.

[0057] Please refer to Figure 3 , in the display panel of the present application, the display panel may further include a scratch-resistant layer 700 disposed on the surface of the support wall 500 or / and the pixel defining layer 400. The scratch-resistant layer 700 can protect the surface of the support wall 500 or / and the pixel defining layer 400, making the surface of the support wall 500 or / and the pixel defining layer 400 not easily scratched and reducing the generation of particulate matter.

[0058] In this embodiment, the surface friction coefficient of the scratch-resistant layer 700 may be less than the surface friction coefficients of the support wall 500 and the scratch-resistant layer 700. That is to say, the surface of the scratch-resistant layer 700 is smoother than the surfaces of the support wall 500 and the pixel defining layer 400, and the mask plate is not likely to generate sliding friction force with the surface of the scratch-resistant layer 700, fundamentally avoiding the surface scratch problem caused by friction force.

[0059] In this embodiment, the hardness of the scratch-resistant layer 700 may be greater than the hardnesses of the support wall 500 and the pixel defining layer 400, so that the surface of the scratch-resistant layer 700 is "harder" and smoother, and the protection effect on the support wall 500 and the pixel defining layer 400 is better.

[0060] In this embodiment, the material of the scratch-resistant layer 700 may be polyethylene terephthalate (PET).

[0061] Please refer to Figure 1 and Figure 2 , in the display panel of the present application, the display panel may further include an array driving layer 200 disposed on the substrate 100 and a planarization layer 300 disposed on the array driving layer 200, and the pixel defining layer 400 is disposed on the planarization layer 300.

[0062] In this embodiment, in the light-emitting direction of the display panel, the first opening 410 and the second opening 420 formed in the pixel defining layer 400 may extend to the surface of the planarization layer 300.

[0063] In this embodiment, the light emitting device 600 may include an anode layer 610, an organic light emitting layer 620, and a cathode layer 630 stacked along the light emitting direction of the display panel. The anode layer 610 is disposed on the planarization layer 300 in the first opening 410, the organic light emitting layer 620 is disposed on the anode layer 610, and the cathode layer 630 is disposed on the organic light emitting layer 620. In this embodiment, the cathode layers 630 of the plurality of light emitting devices 600 may be disposed continuously, that is, the cathode layer 630 may cover the organic light emitting layer 620, the pixel definition layer 400, the support wall 500, and the surface of the planarization layer 300 in the second opening 420 except for the support wall 500.

[0064] In this embodiment, the display panel may also include a first encapsulation layer 910 arranged on the pixel definition layer 400. The first encapsulation layer 910 can completely cover the continuously arranged cathode layer 630 of the plurality of light-emitting devices 600, so that the encapsulation layer 900 forms a continuous film layer to achieve a better encapsulation effect.

[0065] In this embodiment, the display panel may further include a second encapsulation layer 920 disposed on the first encapsulation layer 910 and a third encapsulation layer 930 disposed on the second encapsulation layer 920. The second encapsulation layer 920 is continuously disposed and completely covers the first encapsulation layer 910, and the surface of the second encapsulation layer 920 away from the first encapsulation layer 910 is flat, that is, the second encapsulation layer 920 can fill the gap between the light-emitting device 600, the pixel definition layer 400 and the support wall 500, and form a card-embedded structure with the pixel definition layer 400 and the support wall 500, which is beneficial to improve the encapsulation strength. The surface of the light-emitting device 600 layer is flat after being encapsulated by the third encapsulation layer 930, which is convenient for continuing to set other film layers such as optical glue, cover plate and other structures on the encapsulation layer 900.

[0066] Since the cathode layers 630 of the multiple light-emitting devices 600 are arranged continuously, the cathode layer 630 needs to cover the surface of the support wall 500. Therefore, in order to avoid or reduce the problem that the first encapsulation layer 910 on the surface of the support wall 500 is scratched and causes encapsulation failure, and then causes water and oxygen to directly corrode the cathode layer 630 and invade the light-emitting device 600 along the cathode layer 630, in this embodiment, the anti-scratch layer 700 can be arranged between the cathode layer 630 and the first encapsulation layer 910, so as to further protect the cathode layer 630 on the basis of the first encapsulation layer 910, and further improve the display abnormality problem caused by the intrusion of water and oxygen.

[0067] See alsoFigure 1 and Figure 2 In the display panel of the present application, at least one of the support wall 500 and the pixel defining layer 400 may include nano-doped particles 800, and the nano-doped particles 800 may be inorganic oxides. Specifically, the nano-doped particles 800 may be inorganic oxides such as silicon oxide (SiO), titanium oxide (TiO), and aluminum oxide (AlO).

[0068] In this embodiment, preferably, the nano-doped particles 800 may be disposed only in the support wall 500. After the support wall 500 in direct contact with the mask plate generates particulate matter due to surface scratches and causes packaging failure, the nano-scale doped particles inside the support wall 500 can also greatly increase the invasion path of water and oxygen, effectively preventing or delaying the penetration of water and oxygen to the light-emitting device 600, thereby indirectly achieving an "encapsulation" effect and improving display anomalies such as small black dots caused by the invasion of water and oxygen.

[0069] It should be noted that when the nano-doped particles 800 are disposed only in the support wall 500, the support wall 500 and the pixel defining layer 400 need to be fabricated through two processes. That is, as described above, when the materials of the support wall 500 and the pixel defining layer 400 are different, the pixel defining layer 400 and the support wall 500 can be formed successively through different processes.

[0070] The embodiment of the present application also provides a display terminal, which may include a terminal body and the display panel described in the above embodiment, and the terminal body and the display panel may be combined into one. In this embodiment, the display terminal includes, but is not limited to, mobile phones, computers, televisions, watches, etc.

[0071] The embodiment of the present application provides a support wall 500 with a height greater than that of the pixel defining layer 400. The support wall 500 supports the mask plate during the fabrication process of the display panel, so that the mask plate does not contact the surface of the pixel defining layer 400, to avoid or reduce the packaging failure problem caused by the generation of particulate matter due to the friction between the mask plate and the surface of the pixel defining layer 400 during the alignment process, and further effectively reduce display anomalies such as small black dots caused by packaging failure. Moreover, even if relatively large particulate matter is generated on the friction surface between the support wall 500 and the mask plate and causes packaging failure, water and oxygen molecules also need to diffuse from the support wall 500 farther away from the light-emitting device 600 to the pixel defining layer 400 adjacent to the light-emitting device 600. Compared with the conventional design, the structure in the present application can increase the penetration path of water and oxygen molecules to the light-emitting device 600 to a certain extent, thereby increasing the penetration difficulty, and effectively improving display anomalies such as small black dots caused by the erosion of the light-emitting device 600 by water and oxygen molecules.

[0072] The embodiment of the present application further provides a method for manufacturing a display panel, which is used to manufacture the display panel in the above embodiment.

[0073] Please refer to Figure 4 , the method for manufacturing the display panel may include:

[0074] S100. Provide a substrate 100.

[0075] S200. Form a pixel definition layer 400 on the substrate 100, and define a plurality of first openings 410 arranged in an array and second openings 420 located on at least one side of the first openings 410 on the pixel definition layer 400. The first openings 410 and the second openings 420 are separately arranged.

[0076] S300. Form at least one support wall 500 in the second openings 420, and make the height of the support wall 500 greater than the height of the pixel definition layer 400.

[0077] S400. Form a light-emitting device layer including a plurality of light-emitting devices 600 on the pixel definition layer 400. The plurality of light-emitting devices 600 are located in the plurality of first openings 410.

[0078] S500. Form a packaging layer 900 on the light-emitting device layer.

[0079] In this embodiment, by forming the second openings 420 while forming the first openings 410 on the pixel definition layer 400, and then forming the support walls 500 in the second openings 420, the manufacturing of the support walls 500 only adds one manufacturing process, and the manufacturing process difficulty of the support walls 500 themselves is also relatively low, which is easy to implement and precisely control. While reducing the problem of water and oxygen intrusion, it can also better control costs and maximize economic benefits.

[0080] Please refer to Figure 5 , in this embodiment, the step S200 may include:

[0081] S210. Sequentially form an array driving layer 200, a planarization layer 300, and a pixel definition layer 400 on the substrate 100.

[0082] S220. Simultaneously or using the same manufacturing process on the pixel definition layer 400, define a plurality of first openings 410 arranged in an array and second openings 420 located on at least one side of the first openings 410.

[0083] In this embodiment, when defining the second opening 420 on the pixel definition layer 400, the second opening 420 needs to be located between two adjacent first openings 410, and the second opening 420 is not communicated with the first opening 410. That is to say, the second opening 420 and the adjacent first opening 410 are separated by the pixel definition layer 400.

[0084] Please refer to Figure 6 , in this embodiment, in the step S300, the support wall 500 is located in the second opening 420, and the support wall 500 is separately arranged from the pixel definition layer 400.

[0085] In this embodiment, please refer to Figure 7 and Figure 8 , the step S400 may include:

[0086] S410. Form an anode layer 610 disposed on the planarization layer in the first opening 410.

[0087] S420. Evaporate a light-emitting material on the anode layer 610 by using a mask plate to form an organic light-emitting layer 620.

[0088] In this embodiment, the mask plate is placed on the support wall 500, and the mask plate is accurately aligned with the first opening 410.

[0089] S430. Form a continuous cathode layer 630 on the surfaces of the organic light-emitting layer 620, the pixel definition layer 400, the support wall 500, and the surface of the planarization layer 300 in the second opening 420 except for the support wall 500.

[0090] In this embodiment, the anode in the first opening 410, the organic light-emitting layer 620, and the cathode layer 630 corresponding to the anode or / and the organic light-emitting layer 620 together constitute a light-emitting device 600.

[0091] In this embodiment, please refer to Figure 9 , the step S500 may include:

[0092] S510. Form a first encapsulation layer 910 that completely covers the cathode layer 630 on the surface of the continuous cathode layer 630.

[0093] S520. Form a second encapsulation layer 920 with a flat surface on the first encapsulation layer 910.

[0094] S530. A third encapsulation layer 930 is formed on the surface of the second encapsulation layer 920 away from the first encapsulation layer 910. The first encapsulation layer 910, the second encapsulation layer 920, and the third encapsulation layer 930 together constitute the encapsulation layer 900 in the display panel.

[0095] The above has introduced in detail a display panel, a manufacturing method thereof, and a display terminal provided by an embodiment of the present application. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A display panel, characterized in that, Comprising: A substrate; A pixel defining layer disposed on the substrate, the pixel defining layer including a plurality of first openings arranged in an array and second openings located at least on one side of the first openings, the first openings and the second openings being separately arranged; A light-emitting device layer disposed on the pixel defining layer, the light-emitting device layer including a plurality of light-emitting devices disposed in the plurality of first openings; And At least one support wall disposed in the second opening, the support wall being in contact connection with the pixel defining layer; An anti-scratch layer disposed on the surface of the support wall or / and the pixel defining layer; Wherein, in the light-emitting direction of the display panel, the height of the support wall is greater than the height of the pixel defining layer.

2. The display panel according to claim 1, wherein In the top view of the display panel, the orthographic projection area of the support wall is less than or equal to the area of the second opening.

3. The display panel according to claim 2, wherein In the top view of the display panel, the support wall is separately arranged from the pixel defining layer.

4. The display panel according to claim 3, wherein In the connection direction of two adjacent light-emitting devices, the ratio of the width of the support wall to the width of the second opening is 1 / 3 to 1 / 2.

5. The display panel according to claim 1, characterized in that, In the light-emitting direction of the display panel, the ratio of the height of the support wall to the height of the pixel defining layer is 1.1 to 1.

5.

6. The display panel according to claim 1, wherein The surface friction coefficient of the anti-scratch layer is less than the surface friction coefficients of the support wall and the anti-scratch layer.

7. The display panel according to any one of claims 1 to 6, characterized in that, The display panel further includes a first encapsulation layer disposed on the pixel defining layer, the first encapsulation layer being continuously disposed on the surfaces of the light-emitting devices, the pixel defining layer and the support wall.

8. The display panel according to claim 1, wherein, At least one of the support wall and the pixel defining layer includes nano-doped particles, and the nano-doped particles are inorganic oxides.

9. A method for manufacturing a display panel, characterized in that, Comprising: Providing a substrate; Forming a pixel defining layer on the substrate, and defining a plurality of first openings arranged in an array and second openings located at least on one side of the first openings on the pixel defining layer, the first openings and the second openings being separately arranged; Forming at least one support wall in the second opening, the support wall being in contact connection with the pixel defining layer and making the height of the support wall greater than the height of the pixel defining layer; Forming a light-emitting device layer including a plurality of light-emitting devices on the pixel defining layer, the plurality of light-emitting devices being located in the plurality of first openings; Successively forming an anti-scratch layer and an encapsulation layer on the light-emitting device layer, the anti-scratch layer being disposed on the surface of the support wall or / and the pixel defining layer.

10. A display terminal, characterized in that, Comprising a terminal body and the display panel according to any one of claims 1 to 8, the terminal body and the display panel being combined as a whole.

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