Display panel, manufacturing method thereof and display device

Abstract

The invention is suitable for the technical field of display equipment, and provides a display panel, a manufacturing method thereof and a display device.The manufacturing method comprises the steps that a main body material is arranged on one side of a substrate, a first auxiliary material is added to form an isolation structure comprising preset elements, and an isolation opening is defined by the isolation structure; a light-emitting layer and a packaging layer are arranged on the side, away from the substrate, of the isolation structure; the light-emitting layer and the packaging layer are etched to form a light-emitting unit and a packaging unit in the isolation opening, and the packaging unit at least covers at least part of the surface of the isolation structure. According to the manufacturing method, a gap between the packaging unit and the isolation structure can be avoided, or the packaging unit can be prevented from falling off from the isolation structure, and the packaging effect on the isolation structure is enhanced, so that the light-emitting unit under the packaging unit can be prevented from being damaged in the subsequent manufacturing process, the structure integrity of the light-emitting unit can be kept, and the light-emitting efficiency is improved. Dark spots are avoided, and the display effect of the display panel is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of display devices, and in particular, relates to a display panel and a manufacturing method thereof, and a display device. Background Art

[0002] With the development of display technology, OLED (Organic Light Emitting Diode) display panels have been widely used due to their advantages such as lighter weight, higher brightness, lower power consumption, faster response and higher definition.

[0003] In the manufacturing process of display panels in related technologies, dark spots may easily appear in the light-emitting units, thus affecting the display effect. Summary of the invention

[0004] In view of this, the embodiments of the present application provide a display panel and a manufacturing method thereof, and a display device to solve the problem that dark spots exist in the light-emitting units of the current display panel, which affects the display effect.

[0005] A first aspect of an embodiment of the present application provides a method for manufacturing a display panel, comprising: arranging a main material on one side of a substrate, and adding a first auxiliary material to form an isolation structure including preset elements, wherein the isolation structure encloses an isolation opening; arranging a light-emitting layer and an encapsulation layer on a side of the isolation structure away from the substrate; etching the light-emitting layer and the encapsulation layer to form a light-emitting unit and a encapsulation unit in the isolation opening, wherein the encapsulation unit at least covers at least a portion of the surface of the isolation structure.

[0006] The above-mentioned method for manufacturing a display panel can form an isolation structure including preset elements by adding a first auxiliary material to the main material during the process of manufacturing the isolation structure. In this way, the adhesion between the encapsulation unit and the isolation structure is enhanced, and the encapsulation unit can better adhere to the isolation structure when covering at least part of the surface of the isolation structure, thereby avoiding the formation of a gap between the encapsulation unit and the isolation structure, or the encapsulation unit falling off the isolation structure, thereby enhancing the encapsulation effect of the isolation structure. Therefore, it is possible to prevent the light-emitting unit under the encapsulation unit from being damaged in the subsequent manufacturing process, so that the light-emitting unit can maintain structural integrity without the occurrence of dark spots, thereby improving the display effect of the display panel.

[0007] In one embodiment, the isolation structure includes an isolation body and a blocking part, the main material includes a first main material and a second main material, and the step of arranging the main material on one side of the substrate and adding the first auxiliary material to form an isolation structure including a preset element includes: arranging the first main material on one side of the substrate to form the isolation body; arranging the second main material on the side of the isolation body away from the substrate and adding the first auxiliary material to form the blocking part, the orthographic projection of the isolation body on the substrate is located within the orthographic projection of the blocking part on the substrate; preferably, the packaging unit covers at least part of the surface of the blocking part. In this way, the blocking part of the isolation structure includes the preset element, and the packaging unit covers at least part of the surface of the blocking part, so that the packaging unit can be better attached to the blocking part, better block water vapor, and prevent water vapor from invading the light-emitting unit along the gap between the packaging unit and the blocking part, thereby preventing damage to the light-emitting unit.

[0008] In one embodiment, the second main material includes titanium, and the first auxiliary material includes nitrogen, oxygen or ammonia; preferably, the packaging unit includes the preset element; preferably, the packaging unit includes silicon nitride or silicon oxide; the preset element includes nitrogen or oxygen. With such a design, the first auxiliary material including nitrogen, oxygen or ammonia can react well with the second main material including titanium to generate a barrier including titanium nitride or titanium oxide, thereby having a stronger adhesion with the packaging unit including silicon nitride or silicon oxide.

[0009] In one embodiment, the isolation structure further includes a base portion, the base portion is arranged on a side of the isolation body close to the substrate, the main material further includes a third main material, and the step of arranging the main material on one side of the substrate and adding the first auxiliary material to form an isolation structure including a preset element further includes: arranging the third main material on one side of the substrate to form the base portion, and the orthographic projection of the isolation body on the substrate is located within the orthographic projection of the base portion on the substrate. By arranging the base portion, the effect of the isolation structure in blocking water vapor can be further improved.

[0010] In one embodiment, the third main material includes a molybdenum alloy; preferably, the third main material includes a molybdenum-niobium alloy. In this way, the base portion including the molybdenum alloy is not easily oxidized even after being in contact with air for a long time, thereby avoiding the problem of high resistance caused by the overlap between the oxidized base portion and the electrode in the light-emitting unit, which affects the display effect.

[0011] In one embodiment, the second main material comprises aluminum.

[0012] In one embodiment, before the step of arranging the light-emitting layer and the encapsulation layer on the side of the isolation structure away from the substrate, the manufacturing method further includes: waiting for a preset time t so that the isolation body is fully in contact with the air to form burrs. In this way, the isolation body including aluminum can be oxidized in contact with the air after the preset time t, thereby forming burrs on the surface of the isolation body, which plays a protective role for the isolation body, and can also increase the adhesion between the encapsulation unit and the isolation body, avoiding the formation of a gap between the encapsulation unit and the isolation body, or the encapsulation unit falling off the isolation body, thereby enhancing the encapsulation effect of the isolation body.

[0013] In one embodiment, the preset time t satisfies: t≥72h. By making the preset time t satisfy the above condition, the insulator including aluminum can be fully in contact with the air, so that the surface of the insulator is fully oxidized, the burrs formed cover a wider range, and the adhesion between the packaging unit and the insulator is further increased.

[0014] A second aspect of an embodiment of the present application provides a display panel, comprising: a substrate; an isolation structure, arranged on one side of the substrate, the isolation structure comprising preset elements, and the isolation structure enclosing an isolation opening; a light-emitting layer, comprising a plurality of light-emitting units, the light-emitting units being at least partially located within the isolation opening; and an encapsulation layer, located on a side of the light-emitting layer away from the substrate, the encapsulation layer comprising a plurality of encapsulation units, the encapsulation units covering a surface of a side of the light-emitting unit away from the substrate, and at least a portion of a surface of the isolation structure.

[0015] The above-mentioned display panel, by making the isolation structure include preset elements, the adhesion between the packaging unit and the isolation structure is enhanced, and the packaging unit can be better attached to the isolation structure when covering at least part of the surface of the isolation structure, avoiding the formation of gaps between the packaging unit and the isolation structure, or the packaging unit falling off the isolation structure, thereby enhancing the packaging effect of the isolation structure. Therefore, it is possible to prevent the light-emitting unit under the packaging unit from being damaged in the subsequent manufacturing process, so that the light-emitting unit can maintain structural integrity without the occurrence of dark spots, thereby improving the display effect of the display panel.

[0016] In one embodiment, the isolation structure includes an isolation body and a blocking portion, wherein the blocking portion is disposed on a side of the isolation body facing away from the substrate, and an orthographic projection of the isolation body on the substrate is located within an orthographic projection of the blocking portion on the substrate; preferably, the encapsulation unit at least covers at least a portion of the surface of the blocking portion; preferably, the isolation structure also includes a base portion, which is disposed on a side of the isolation body close to the substrate; preferably, the orthographic projection of the isolation body on the substrate is located within an orthographic projection of the base portion on the substrate.

[0017] In one embodiment, the blocking portion comprises titanium oxide or titanium nitride, and / or the base portion comprises a molybdenum-niobium alloy; preferably, the preset element comprises nitrogen or oxygen; preferably, the packaging unit comprises the preset element; preferably, the packaging unit comprises silicon nitride or silicon oxide.

[0018] In one embodiment, a plurality of concave-convex structures are provided on the side wall of the isolating body; preferably, the concave-convex structures include burrs. In this way, the concave-convex structures can protect the isolating body and increase the adhesion between the packaging unit and the isolating body, thereby preventing a gap from forming between the packaging unit and the isolating body or the packaging unit from falling off the isolating body, thereby enhancing the packaging effect of the isolating body.

[0019] In one embodiment, the packaging unit includes a main body portion and an extension portion connected to each other, the main body portion covers a surface of the light-emitting unit facing away from the substrate, and the extension portion at least partially extends to a side of the isolation structure located on one side of the isolation opening facing away from the substrate. With such a design, the packaging effect of the packaging unit is better.

[0020] In one embodiment, in two adjacent packaging units, the orthographic projection of the extension of one packaging unit on the substrate at least partially overlaps with the orthographic projection of the extension of the other packaging unit on the substrate to form an overlapped area; preferably, the orthographic projection of the overlapped area on the substrate is located within the orthographic projection of the side surface of the isolation structure away from the substrate on the substrate. In this way, the two adjacent packaging units can overlap each other to form a more compact packaging structure, and the protection effect is better.

[0021] A third aspect of the embodiments of the present application provides a display device, including: a display panel manufactured by the above-mentioned method for manufacturing a display panel; or the above-mentioned display panel.

[0022] It can be understood that the beneficial effects of the third aspect mentioned above can be found in the relevant descriptions of the first and second aspects mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 is a flow chart of a method for manufacturing a display panel provided by an embodiment of the present application;

[0025] Figure 2 is a top view of the overall structure of a display panel provided by an embodiment of the present application;

[0026] Figure 3 is a cross-sectional view of the overall structure of a display panel provided by an embodiment of the present application;

[0027] Figure 4 A display panel provided by an embodiment of the present application is Figure 3 A local enlarged schematic diagram of the middle A;

[0028] Figure 5 is a cross-sectional view of the overall structure of a display panel provided by another embodiment of the present application;

[0029] Figure 6 Another embodiment of the present application provides a display panel. Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0030] Figure 7 It is a schematic diagram of the overall structure of a display device provided by an embodiment of the present application.

[0031] Figure Number:

[0032] 10. Display device;

[0033] 100. Display panel;

[0034] 110. Substrate;

[0035] 120, isolation structure, 121, isolation opening, 122, isolation body, 123, blocking portion, 124, base portion;

[0036] 130, light-emitting layer, 131, light-emitting unit, 1311, first electrode, 1312, light-emitting functional part, 1313, second electrode;

[0037] 140, packaging layer, 141, packaging unit, 1411, main body, 1412 / 1413, extension part;

[0038] 150. Pixel limiting layer. DETAILED DESCRIPTION

[0039] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0040] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0042] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0043] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0044] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways. "Multiple" means two or more.

[0045] In the process of implementing the present invention, the inventors found that the following problems exist in the related technology: the display panel usually includes a substrate, a light-emitting layer arranged on the substrate, an isolation structure arranged between two adjacent light-emitting units in the light-emitting layer, and an encapsulation layer arranged on the side of the light-emitting layer away from the substrate, wherein the encapsulation layer at least partially extends onto the isolation structure, and external water vapor can easily invade the light-emitting layer from the position of the encapsulation layer, resulting in dark spots in the light-emitting units, affecting the display effect of the display panel.

[0046] To at least partially address the issues in the related art, see Figures 1 to 4The present application embodiment provides a method for manufacturing a display panel 100, the manufacturing method comprising the following steps:

[0047] S102 , disposing a main material on one side of the substrate 110 , and adding a first auxiliary material to form an isolation structure 120 including preset elements, wherein the isolation structure 120 surrounds an isolation opening 121 .

[0048] The substrate 110 is used to support and carry other film layers in the display panel 100. For example, the substrate 110 can be made of materials such as glass and polyimide (PI). In some embodiments, the substrate 110 can also include an array substrate, on which a driving circuit for driving the light-emitting units 131 in the display area of ​​the display panel 100 to emit light is provided. Under the drive of the driving circuit, different light-emitting units 131 in the display area can be excited to emit light of different colors, so that the display panel 100 can achieve a colorful display effect.

[0049] like Figure 2 As shown, the isolation structure 120 is disposed on the substrate 110, and the isolation structure 120 is surrounded by an isolation opening 121 for at least partially accommodating the light-emitting units 131. The light emitted by each light-emitting unit 131 will be shielded by the isolation structure 120 so as not to interfere with the light emitted by the adjacent light-emitting unit 131, thereby avoiding signal crosstalk between adjacent light-emitting units 131. The specific structural form of the isolation structure 120 is not limited, as long as it can separate two light-emitting units 131.

[0050] The composition and preparation of the isolation structure 120 are described in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 099072, CN117979755A, CN117998900A, CN The present invention is further described in CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, and CN117500332A for reference.

[0051] Compared with the related art, in the embodiment of the present application, in addition to the main material, a first auxiliary material is also added during the preparation of the isolation structure 120. Under the interaction of the main material and the first auxiliary material, the isolation structure 120 includes a preset element, which can be any element present in the first auxiliary material but not present in the isolation structure in the related art.

[0052] S104 , disposing a light emitting layer 130 and an encapsulation layer 140 on a side of the isolation structure 120 facing away from the substrate 110 .

[0053] S106 , etching the light emitting layer 130 and the encapsulation layer 140 to form a light emitting unit 131 and an encapsulation unit 141 in the isolation opening 121 , wherein the encapsulation unit 141 at least covers at least a portion of the surface of the isolation structure 120 .

[0054] The light-emitting layer 130 is etched to form a light-emitting unit 131 in the isolation opening 121. For example, the light-emitting unit 131 may be a red light-emitting unit for emitting red light, a green light-emitting unit for emitting green light, a blue light-emitting unit for emitting blue light, or a white light-emitting unit for emitting white light. The number of different types of light-emitting units 131, the arrangement of multiple light-emitting units 131, the spacing between two adjacent light-emitting units 131, etc. can be flexibly set and are not limited here. The light-emitting unit 131 can emit light under the driving action of the driving circuit. Specifically, the light-emitting functional unit 1312 in the light-emitting unit 131 can emit light under the action of an electric field. The light-emitting unit 131 may include a first electrode 1311, a second electrode 1313, and a light-emitting functional unit 1312. An electric field can be generated under the action of the first electrode 1311 and the second electrode 1313, so that the light-emitting functional unit 1312 can emit light under the driving action of the electric field.

[0055] The encapsulation layer 140 can encapsulate and protect the display panel 100 as a whole. The encapsulation layer 140 can be a single-layer structure made of inorganic materials or organic materials, or a laminated structure made of at least one of inorganic materials or organic materials, which is not limited here. The encapsulation layer 140 includes a plurality of encapsulation units 141, each of which is arranged corresponding to each light-emitting unit 131. The encapsulation unit 141 covers the surface of the light-emitting unit 131 facing away from the substrate 110. The encapsulation unit 141 also covers at least part of the surface of the isolation structure 120, so that the adhesion between the encapsulation unit 141 and the isolation structure 120 can be made stronger.

[0056] The manufacturing method of the display panel 100 of the embodiment of the present application can form an isolation structure 120 including preset elements by adding a first auxiliary material to the main material during the process of manufacturing the isolation structure 120. In this way, the adhesion between the encapsulation unit 141 and the isolation structure 120 is enhanced. When the encapsulation unit 141 covers at least a portion of the surface of the isolation structure 120, the isolation structure 120 can be better adhered to the encapsulation unit 141, thereby avoiding a gap between the encapsulation unit 141 and the isolation structure 120, or the encapsulation unit 141 falling off the isolation structure 120, thereby enhancing the encapsulation effect of the isolation structure 120. Therefore, it is possible to prevent the light-emitting unit 131 under the encapsulation unit 141 from being damaged in the subsequent manufacturing process, so that the light-emitting unit 131 can maintain structural integrity without the occurrence of dark spots, thereby improving the display effect of the display panel 100.

[0057] In some embodiments, the encapsulation layer 140 includes a preset element, which is the same as the preset element in the isolation structure 120. The encapsulation unit 141 also includes the preset element. Each encapsulation unit 141 is arranged corresponding to each light-emitting unit 131. The encapsulation unit 141 covers the side surface of the light-emitting unit 131 facing away from the substrate 110. The encapsulation unit 141 also covers at least part of the surface of the isolation structure 120. In this way, the adhesion between the encapsulation unit 141 and the isolation structure 120 can be made stronger.

[0058] like Figure 3 and Figure 4 As shown, in some embodiments, in order to further avoid signal crosstalk between adjacent light-emitting units 131, the display panel 100 also includes a pixel defining layer 150, and the pixel defining layer 150 is disposed on the substrate 110, and the pixel defining layer 150 defines a plurality of pixel openings that are spaced apart from each other, and each light-emitting unit 131 is disposed corresponding to each pixel opening, and the isolation structure 120 is disposed on a side of the pixel defining layer 150 away from the substrate 110, and the isolation structure 120 is located between at least partially adjacent two pixel openings.

[0059] The specific structural form of the isolation structure 120 is not limited. In some embodiments, optionally, the isolation structure 120 includes an isolation body 122 and a blocking portion 123, and the main material includes a first main material and a second main material. Step S102 includes:

[0060] S1022 , disposing a first main material on one side of the substrate 110 to form an insulator 122 .

[0061] S1024. A second main material is arranged on the side of the isolating body 122 facing away from the substrate 110, and a first auxiliary material is added to form a blocking portion 123. The orthographic projection of the isolating body 122 on the substrate 110 is located within the orthographic projection of the blocking portion 123 on the substrate 110. Preferably, the encapsulation unit 141 covers at least a portion of the surface of the isolating body 122.

[0062] That is to say, the isolation structure 120 includes a relatively independent isolation body 122 and a blocking portion 123, wherein the isolation body 122 is located on the substrate 110 or the pixel defining layer 150, and the blocking portion 123 is located on the side of the isolation body 122 away from the substrate 110, and the area covered by the orthographic projection of the blocking portion 123 on the substrate 110 is relatively large, while the area covered by the orthographic projection of the isolation body 122 on the substrate 110 is relatively small, so that the orthographic projection of the blocking portion 123 on the substrate 110 can cover the orthographic projection of the isolation body 122 on the substrate 110. The cross-sectional shapes of the isolation body 122 and the blocking portion 123 can be regular shapes, such as rectangles, trapezoids, etc., or irregular shapes. Figure 3 and Figure 4 In the illustrated embodiment, the cross-sectional shapes of the isolating body 122 and the blocking portion 123 are both trapezoidal.

[0063] In the isolation structure 120, the blocking portion 123 is generated by the reaction of the second main body and the first auxiliary material, and the blocking portion 123 has the same preset elements as those in the packaging unit 141. The blocking portion 123 of the isolation structure 120 includes the preset elements, and the packaging unit 141 covers at least part of the surface of the blocking portion 123, so that the packaging unit 141 can be better attached to the blocking portion 123, better block water vapor, and prevent water vapor from invading the light-emitting unit 131 along the gap between the packaging unit 141 and the blocking portion 123, thereby preventing damage to the light-emitting unit 131.

[0064] In some embodiments, optionally, the second main material includes titanium, the first auxiliary material includes nitrogen, oxygen or ammonia, and the encapsulation layer 140 (or encapsulation unit 141) includes silicon nitride or silicon oxide; the preset element includes nitrogen or oxygen. That is, in step S1024, a titanium layer is provided on the side of the insulator 122 away from the substrate 110, and nitrogen, oxygen or ammonia is introduced at the same time, so that titanium reacts chemically with nitrogen, oxygen or ammonia to generate a barrier 123 including titanium nitride or titanium oxide. With such a design, the first auxiliary material including nitrogen, oxygen or ammonia can react well with the second main material including titanium to generate a barrier 123 including titanium nitride or titanium oxide, thereby having a stronger adhesion with the encapsulation unit 141 including silicon nitride or silicon oxide.

[0065] like Figure 4 As shown, in some embodiments, optionally, the isolation structure 120 further includes a base portion 124, the base portion 124 is disposed on a side of the isolation body 122 close to the substrate 110, the main material further includes a third main material, and step S102 further includes:

[0066] S1026 , disposing a third main material on one side of the substrate 110 to form a base portion 124 , wherein the orthographic projection of the insulator 122 on the substrate 110 is located within the orthographic projection of the base portion 124 on the substrate 110 .

[0067] That is, the base 124, the isolating body 122 and the blocking part 123 in the isolation structure 120 are stacked in sequence, and the area covered by the orthographic projection of the isolating body 122 on the substrate 110 is relatively small, while the area covered by the orthographic projection of the base 124 on the substrate 110 is relatively large, so that the orthographic projection of the base 124 on the substrate 110 can cover the orthographic projection of the isolating body 122 on the substrate 110. By setting the base 124, the effect of the isolation structure 120 in blocking water vapor can be further improved.

[0068] In order to prevent the base 124 from being oxidized, based on the above embodiment, the third main material includes a molybdenum alloy; preferably, the third main material includes a molybdenum-niobium alloy. In this way, the base 124 including the molybdenum alloy is not easily oxidized even after being in contact with air for a long time, thereby avoiding the problem of high resistance caused by the overlap between the oxidized base 124 and the electrode in the light-emitting unit 131, which affects the display effect.

[0069] Furthermore, in some embodiments, the second main material includes aluminum. Then, in the isolation structure 120, the base portion 124, the isolation body 122, and the barrier portion 123 are sequentially stacked and made of molybdenum alloy, aluminum, titanium nitride, or titanium oxide.

[0070] In some embodiments, optionally, before step S104, the manufacturing method further includes:

[0071] S103, waiting for a preset time t to allow the isolator 122 to fully contact with the air to form burrs.

[0072] With such a configuration, the insulator 122 including aluminum can be oxidized when in contact with the air after a preset time t, thereby forming burrs (i.e., Al2O3) on the surface of the insulator 122, which protects the insulator 122 and can also increase the adhesion between the packaging unit 141 and the insulator 122, thereby avoiding the formation of a gap between the packaging unit 141 and the insulator 122, or the packaging unit 141 falling off the insulator 122, thereby enhancing the packaging effect of the insulator 122.

[0073] On the basis of the above embodiment, in order to ensure that the insulator 122 is fully oxidized, the preset time t satisfies: t≥72h.

[0074] In some specific embodiments, the preset time t may be 72 hours, 75 hours, 87 hours, 96 hours, 100 hours, 120 hours, etc. The above are only examples of the preset time t. In actual embodiments, the preset time t may also be other durations that meet the above range. By making the preset time t meet the above conditions, the insulator 122 including aluminum can be fully in contact with the air, so that the surface of the insulator 122 is fully oxidized, and the burrs formed cover a wider range, further increasing the adhesion between the packaging unit 141 and the insulator 122.

[0075] Please continue reading Figure 3 to Figure 4 Based on the same inventive concept, an embodiment of the present application further provides a display panel 100 , which includes a substrate 110 , an isolation structure 120 , a light-emitting layer 130 and an encapsulation layer 140 .

[0076] Among them, the isolation structure 120 is arranged on one side of the substrate 110, the isolation structure 120 includes preset elements, the isolation structure 120 encloses an isolation opening 121, the light-emitting layer 130 includes a plurality of light-emitting units 131, the light-emitting unit 131 is at least partially located in the isolation opening 121, the encapsulation layer 140 is located on the side of the light-emitting layer 130 away from the substrate 110, the encapsulation layer 140 includes a plurality of encapsulation units 141, the encapsulation units 141 cover the side surface of the light-emitting unit 131 away from the substrate 110, and at least part of the surface of the isolation structure 120.

[0077] The display panel 100 of the embodiment of the present application makes the isolation structure 120 include preset elements, so that the adhesion between the encapsulation unit 141 and the isolation structure 120 is enhanced. When the encapsulation unit 141 covers at least a portion of the surface of the isolation structure 120, the isolation structure 120 can be better adhered to the encapsulation unit 141, thereby avoiding the formation of a gap between the encapsulation unit 141 and the isolation structure 120, or the encapsulation unit 141 falling off the isolation structure 120, thereby enhancing the encapsulation effect of the isolation structure 120, and thus preventing the light-emitting unit 131 under the encapsulation unit 141 from being damaged in the subsequent manufacturing process, so that the light-emitting unit 131 can maintain structural integrity without the formation of dark spots, thereby improving the display effect of the display panel 100.

[0078] As described above, in some embodiments, optionally, the isolation structure 120 includes an isolation body 122 and a blocking portion 123, the blocking portion 123 is arranged on the side of the isolation body 122 facing away from the substrate 110, and the orthographic projection of the isolation body 122 on the substrate 110 is located within the orthographic projection of the blocking portion 123 on the substrate 110; preferably, the encapsulation unit 141 at least covers at least a portion of the surface of the blocking portion 123.

[0079] The isolation structure 120 includes a relatively independent isolation body 122 and a blocking portion 123, wherein the isolation body 122 is located on the substrate 110 or the pixel defining layer 150, and the blocking portion 123 is located on the side of the isolation body 122 away from the substrate 110, and the area covered by the orthographic projection of the blocking portion 123 on the substrate 110 is relatively large, while the area covered by the orthographic projection of the isolation body 122 on the substrate 110 is relatively small, so that the orthographic projection of the blocking portion 123 on the substrate 110 can cover the orthographic projection of the isolation body 122 on the substrate 110.

[0080] In some embodiments, optionally, the isolation structure 120 further includes a base portion 124 , which is disposed on a side of the isolation body 122 close to the substrate 110 , and an orthographic projection of the isolation body 122 on the substrate 110 is located within an orthographic projection of the base portion 124 on the substrate 110 .

[0081] That is, in the present embodiment, the base portion 124, the isolating body 122 and the blocking portion 123 in the isolation structure 120 are stacked in sequence, and the area covered by the orthographic projection of the isolating body 122 on the substrate 110 is relatively small, while the area covered by the orthographic projection of the base portion 124 on the substrate 110 is relatively large, so that the orthographic projection of the base portion 124 on the substrate 110 can cover the orthographic projection of the isolating body 122 on the substrate 110.

[0082] In some embodiments, the blocking portion 123 includes titanium oxide or titanium nitride, and / or the base portion 124 includes a molybdenum-niobium alloy. With this configuration, the base portion 124 including the molybdenum-niobium alloy is not easily oxidized even after being in contact with the air for a long time, thereby avoiding the problem of high resistance caused by the overlap between the oxidized base portion 124 and the electrode in the light-emitting unit 131, which affects the display effect; optionally, the preset element includes nitrogen or oxygen, which has a simple composition and is cheap and easy to obtain; optionally, the packaging unit 141 includes a preset element, so that the adhesion between the packaging unit 141 and the isolation structure 120 can be made stronger; optionally, the packaging unit 141 includes silicon nitride or silicon oxide, so that the material of the packaging unit 141 is simple and easy to prepare. In this way, the adhesion between the packaging unit 141 and the isolation structure 120 is stronger. When the packaging unit 141 covers at least part of the surface of the isolation structure 120, the packaging unit 141 can be better attached to the isolation structure 120, thereby avoiding the formation of a gap between the packaging unit 141 and the isolation structure 120, or the packaging unit 141 falling off the isolation structure 120, thereby enhancing the packaging effect of the isolation structure 120, and thus preventing the light-emitting unit 131 under the packaging unit 141 from being damaged during the subsequent manufacturing process, so that the light-emitting unit 131 can maintain structural integrity without the formation of dark spots, thereby improving the display effect of the display panel 100.

[0083] In order to further increase the adhesion between the packaging unit 141 and the isolation body 122, in some embodiments, optionally, a plurality of concave-convex structures are provided on the side wall of the isolation body 122; preferably, the concave-convex structures include burrs.

[0084] The presence of the concave-convex structure makes the side wall of the isolation body 122 appear uneven. Such a setting can protect the isolation body 122 and increase the adhesion between the packaging unit 141 and the isolation body 122, thereby avoiding the formation of a gap between the packaging unit 141 and the isolation body 122, or the packaging unit 141 falling off the isolation body 122, thereby enhancing the packaging effect of the isolation body 122.

[0085] Please combine Figure 2 Also see Figures 5 and 6 In some other embodiments, optionally, the packaging unit 141 includes a main body portion 1411 and an extension portion 1412 / 1413 connected to each other, the main body portion 1411 covers a surface of the light-emitting unit 131 facing away from the substrate 110, and the extension portion at least partially extends to a side of the isolation structure 120 located on one side of the isolation opening 121 facing away from the substrate 110. Specifically, the extension portion 1412 at least partially extends to a side of the isolation structure 120 located on one side of the isolation opening 121 facing away from the substrate 110, and the extension portion 1413 at least partially extends to a side of the isolation structure 120 located on the same side of the isolation opening 121 facing away from the substrate 110.

[0086] In some embodiments, optionally, in two adjacent packaging units 141, the orthographic projection of the extension portion 1412 of one packaging unit 141 on the substrate 110 at least partially overlaps with the orthographic projection of the extension portion 1413 of the other packaging unit 141 on the substrate 110 to form an overlapped area. In other words, the extension portion 1412 of one packaging unit 141 overlaps with the extension portion 1413 of the other packaging unit 141, so that the isolation structure 120 can be enclosed inside the packaging unit 141, thereby achieving a better packaging effect thereon.

[0087] Furthermore, the extending portion 1412 of one of the packaging units 141 at least extends to a side of the extending portion 1413 of another packaging unit 141 facing away from the substrate 110 .

[0088] In other embodiments, the extending portion 1413 of one packaging unit 141 may at least extend to a side of the extending portion 1412 of another packaging unit 141 facing away from the substrate 110 .

[0089] With this arrangement, two adjacent packaging units 141 overlap each other one above the other to form a tighter packaging structure, thereby achieving a better protection effect.

[0090] Furthermore, if Figure 6 As shown, the orthographic projection of the overlapped area on the substrate 110 is located within the orthographic projection of the surface of the isolation structure 120 away from the substrate 110 on the substrate 110. Such a setting can reduce the influence of the overlapped area on other structures.

[0091] Furthermore, the display panel 100 may also include an organic encapsulation layer located on a side of the encapsulation layer 140 away from the substrate 110, and an inorganic encapsulation layer located on a side of the organic encapsulation layer away from the substrate 110. The above arrangement can further optimize the encapsulation effect of the display panel 100.

[0092] Please combine Figures 2 to 6 Also see Figure 7 The embodiment of the present application further provides a display device 10, which includes a display panel 100 prepared by the manufacturing method of the display panel 100 in any one of the above embodiments; or the display panel 100 in any one of the above embodiments.

[0093] The display panel 100 disclosed in the embodiment of the present application is applied to a display device 10 to provide a screen display function. The display device 10 can be any product or component with a display function, including but not limited to a mobile phone, a tablet computer, a laptop computer, an e-reader, a wearable device, a remote control, a television, a desktop computer, a vehicle-mounted device, etc. Due to the use of the display panel 100 in any of the above embodiments, when the encapsulation unit 141 covers at least part of the surface of the isolation structure 120, it can be better attached to the isolation structure 120, avoiding a gap between the encapsulation unit 141 and the isolation structure 120, or the encapsulation unit 141 falling off from the isolation structure 120, thereby enhancing the encapsulation effect of the isolation structure 120, thereby preventing damage to the light-emitting unit 131 under the encapsulation unit 141 in the subsequent manufacturing process, so that the light-emitting unit 131 can maintain structural integrity without dark spots, thereby improving the display effect of the display panel 100.

[0094] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0095] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for manufacturing a display panel, characterized in that: include: A main material is arranged on one side of the substrate, and a first auxiliary material is added to form an isolation structure including a preset element, wherein the isolation structure surrounds an isolation opening; Disposing a light-emitting layer and an encapsulation layer on a side of the isolation structure away from the substrate; The light-emitting layer and the encapsulation layer are etched to form a light-emitting unit and an encapsulation unit in the isolation opening, wherein the encapsulation unit at least covers at least a portion of the surface of the isolation structure.

2. The method according to claim 1, characterized in that: The isolation structure includes an isolation body and a blocking portion, the main material includes a first main material and a second main material, and the steps of arranging the main material on one side of the substrate and adding the first auxiliary material to form an isolation structure including preset elements include: The first main material is arranged on one side of the substrate to form the isolation body; The second main material is arranged on a side of the isolating body away from the substrate, and the first auxiliary material is added to form the blocking portion, wherein the orthographic projection of the isolating body on the substrate is located within the orthographic projection of the blocking portion on the substrate; Preferably, the packaging unit covers at least a portion of the surface of the blocking portion.

3. The method according to claim 2, characterized in that: The second main material includes titanium, and the first auxiliary material includes nitrogen, oxygen or ammonia; Preferably, the encapsulation unit includes the preset element; Preferably, the packaging unit comprises silicon nitride or silicon oxide; The preset element includes nitrogen or oxygen.

4. The method according to claim 2, characterized in that: The isolation structure further includes a base portion, which is disposed on a side of the isolation body close to the substrate, the main material further includes a third main material, and the step of arranging the main material on one side of the substrate and adding the first auxiliary material to form an isolation structure including the preset element further includes: The third main material is arranged on one side of the substrate to form the base portion, and the orthographic projection of the insulator on the substrate is located within the orthographic projection of the base portion on the substrate.

5. The method according to claim 4, characterized in that: The third main material includes a molybdenum alloy; Preferably, the third main material comprises a molybdenum-niobium alloy.

6. The method according to claim 2, characterized in that: The second main material includes aluminum.

7. The method according to claim 6, characterized in that: Before the step of providing a light-emitting layer and an encapsulation layer on a side of the isolation structure away from the substrate, the manufacturing method further comprises: Wait for a preset time t to allow the isolator to fully contact with the air to form burrs.

8. The method according to claim 7, characterized in that: The preset time t satisfies: t≥72h.

9. A display panel, characterized in that: include: substrate; An isolation structure is disposed on one side of the substrate, the isolation structure includes preset elements, and the isolation structure surrounds an isolation opening; A light-emitting layer, comprising a plurality of light-emitting units, wherein at least a portion of the light-emitting units are located within the isolation openings; as well as The encapsulation layer is located on a side of the light-emitting layer away from the substrate, and the encapsulation layer includes a plurality of encapsulation units, and the encapsulation units cover a surface of the light-emitting unit away from the substrate and at least a portion of a surface of the isolation structure.

10. The display panel according to claim 9, wherein: The isolation structure comprises an isolation body and a blocking portion, wherein the blocking portion is arranged on a side of the isolation body away from the substrate, and an orthographic projection of the isolation body on the substrate is located within an orthographic projection of the blocking portion on the substrate; preferably, the encapsulation unit at least covers at least a portion of the surface of the blocking portion; Preferably, the isolation structure further comprises a base portion, and the base portion is arranged on a side of the isolation body close to the substrate; Preferably, the orthographic projection of the insulator on the substrate is located within the orthographic projection of the base portion on the substrate.

11. The display panel according to claim 10, wherein: The barrier portion comprises titanium oxide or titanium nitride, and / or the base portion comprises a molybdenum-niobium alloy; Preferably, the predetermined element includes nitrogen or oxygen; Preferably, the encapsulation unit includes the preset element; Preferably, the packaging unit comprises silicon nitride or silicon oxide.

12. The display panel according to claim 10, wherein: A plurality of concave-convex structures are provided on the side wall of the isolator; Preferably, the concavo-convex structure includes burrs.

13. The display panel according to claim 9, wherein: The packaging unit includes a main body and an extension portion connected to each other, the main body covers a surface of the light emitting unit facing away from the substrate, and the extension portion at least partially extends to a side of the isolation structure located on one side of the isolation opening facing away from the substrate.

14. The display panel according to claim 13, wherein: In two adjacent packaging units, an orthographic projection of an extension portion of one of the packaging units on the substrate at least partially overlaps with an orthographic projection of an extension portion of another of the packaging units on the substrate to form an overlapped area; Preferably, the orthographic projection of the overlapped area on the substrate is located within the orthographic projection of a surface of a side of the isolation structure away from the substrate on the substrate.

15. A display device, characterized in that: include: A display panel manufactured by the method for manufacturing a display panel according to any one of claims 1 to 8; or A display panel as claimed in any one of claims 9 to 14.

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