Display panel, manufacturing method thereof and display device

Abstract

The application is suitable for the technical field of display device, and provides a display panel, a manufacturing method thereof and a display device. The manufacturing method comprises the following steps: a main material is arranged on one side of a substrate, and a first auxiliary material is added to form an isolation structure comprising a preset element, and the isolation structure surrounds an isolation opening; a light-emitting layer and an encapsulation layer are arranged on the side of the isolation structure away from the substrate; and the light-emitting layer and the encapsulation layer are etched to form a light-emitting unit and an encapsulation unit in the isolation opening, and the encapsulation unit covers at least part of the surface of the isolation structure. The manufacturing method can avoid a gap between the encapsulation unit and the isolation structure or the encapsulation unit falling off from the isolation structure, and the encapsulation effect of the isolation structure is enhanced, so that damage to the light-emitting unit under the encapsulation unit in the subsequent manufacturing process can be prevented, the light-emitting unit can maintain a complete structure and dark spots can be 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 particularly relates to a display panel, a manufacturing method thereof, and a display device. BACKGROUND

[0002] With the development of display technology, OLED (Organic Light Emitting Diode) display panels have been widely used due to their advantages of being light and thin, high brightness, low power consumption, fast response, high definition, and the like.

[0003] In the manufacturing process of the display panel in the related art, the light emitting unit is prone to have a dark spot, which affects the display effect. SUMMARY

[0004] Therefore, the embodiments of the present application provide a display panel, a manufacturing method thereof, and a display device to solve the problem that the light emitting unit in the current display panel has a dark spot, which affects the display effect.

[0005] The first aspect of the embodiments of the present application provides a manufacturing method of a display panel, comprising: disposing a main material on one side of a substrate and adding a first auxiliary material to form an isolation structure comprising a preset element, the isolation structure surrounding an isolation opening; disposing a light emitting layer and an encapsulation layer on the 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 an encapsulation unit in the isolation opening, the encapsulation unit covering at least part of the surface of the isolation structure.

[0006] The manufacturing method of the display panel described above, by adding the first auxiliary material to the main material in the process of manufacturing the isolation structure, can form the isolation structure comprising the preset element. 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, avoiding the gap between the encapsulation unit and the isolation structure or the falling off of the encapsulation unit from the isolation structure, enhancing the encapsulation effect of the isolation structure. Therefore, the damage to the light emitting unit under the encapsulation unit in the subsequent manufacturing process can be prevented, the light emitting unit can maintain the structural integrity, the dark spot can be avoided, and the display effect of the display panel is improved.

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

[0008] In one embodiment, the second main material comprises titanium, and the first auxiliary material comprises nitrogen, oxygen or ammonia; preferably, the packaging unit comprises the preset element; preferably, the packaging unit comprises silicon nitride or silicon oxide; and the preset element comprises nitrogen or oxygen. In this way, the first auxiliary material comprising nitrogen, oxygen or ammonia can better react with the second main material comprising titanium to generate a barrier portion comprising titanium nitride or titanium oxide, so that the adhesion between the packaging unit comprising silicon nitride or silicon oxide is stronger.

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

[0010] In one embodiment, the third main material comprises molybdenum alloy; and preferably, the third main material comprises molybdenum-niobium alloy. In this way, the base portion comprising molybdenum alloy is not easy to be oxidized even after a long time of contact with air, so that the problem of high resistance caused by the contact between the oxidized base portion and the electrode in the light-emitting unit, which affects the display effect, can be avoided.

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

[0012] In one embodiment, before the step of disposing the light-emitting layer and the encapsulation layer on the side of the isolation structure away from the substrate, the manufacturing method further comprises: waiting for a preset time t to enable the isolation body to be fully in contact with air to form burrs. In this way, the isolation body comprising aluminum can be oxidized after the preset time t to form burrs on the surface of the isolation body, thereby protecting the isolation body and increasing the adhesion between the encapsulation unit and the isolation body, avoiding a gap between the encapsulation unit and the isolation body or the encapsulation unit falling off the isolation body, and enhancing the encapsulation effect of the isolation body.

[0013] In one embodiment, the preset time t satisfies: t≥72h. By satisfying the above condition, the isolation body comprising aluminum can be fully in contact with air, so that the surface of the isolation body is fully oxidized, and the burrs formed cover a wider range, further increasing the adhesion between the encapsulation unit and the isolation body.

[0014] The second aspect of the embodiments of the present application provides a display panel, comprising: a substrate; an isolation structure disposed on one side of the substrate, the isolation structure comprising a preset element, the isolation structure surrounding an isolation opening; a light-emitting layer comprising a plurality of light-emitting units, the light-emitting units being at least partially located in the isolation opening; and an encapsulation layer located on the side of the light-emitting layer away from the substrate, the encapsulation layer comprising a plurality of encapsulation units, the encapsulation units covering the side surface of the light-emitting units away from the substrate and at least part of the surface of the isolation structure.

[0015] The display panel described above, by enabling the isolation structure to comprise a preset element, the adhesion between the encapsulation unit and the isolation structure is enhanced, the encapsulation unit can be better attached to the isolation structure when covering at least part of the surface of the isolation structure, avoiding a gap between the encapsulation unit and the isolation structure or the encapsulation unit falling off the isolation structure, and enhancing the encapsulation effect of the isolation structure, thereby preventing damage to the light-emitting unit under the encapsulation unit in the subsequent manufacturing process, enabling the light-emitting unit to maintain structural integrity and not to appear dark spots, and improving the display effect of the display panel.

[0016] In one embodiment, the isolation structure comprises an isolation body and a blocking portion, the blocking portion being disposed on the side of the isolation body away from the substrate, the orthogonal projection of the isolation body on the substrate being located within the orthogonal projection of the blocking portion on the substrate; preferably, the encapsulation unit covers at least part of the surface of the blocking portion; preferably, the isolation structure further comprises a base portion, the base portion being disposed on the side of the isolation body close to the substrate; preferably, the orthogonal projection of the isolation body on the substrate is located within the orthogonal projection of the base portion on the substrate.

[0017] In one embodiment, the barrier portion comprises titanium oxide or titanium nitride, and / or the base portion comprises 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, the side wall of the isolation body is provided with a plurality of concave-convex structures; preferably, the concave-convex structures comprise burrs. In this way, the concave-convex structures can protect the isolation body, and also increase the adhesion between the packaging unit and the isolation body, avoid the gap between the packaging unit and the isolation body, or the packaging unit from falling off the isolation body, and enhance the packaging effect of the isolation body.

[0019] In one embodiment, the packaging unit comprises a main body portion and an extension portion connected thereto, the main body portion covers the side surface of the light-emitting unit away from the substrate, and the extension portion at least partially extends to the side of the isolation structure away from the substrate. In this way, the packaging effect of the packaging unit is better.

[0020] In one embodiment, in two adjacent packaging units, the orthographic projection of the extension portion of one of the packaging units on the substrate at least partially overlaps with the orthographic projection of the extension portion of the other of the packaging units on the substrate to form an overlapping area; preferably, the orthographic projection of the overlapping 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 with each other to form a more compact packaging structure, and the protection effect is better.

[0021] The third aspect of the embodiments of the present application provides a display device, comprising: a display panel prepared by the above-mentioned display panel manufacturing method; or the above-mentioned display panel.

[0022] It can be understood that the beneficial effects of the above-mentioned third aspect can be referred to the related description of the above-mentioned first aspect and the second aspect, which will not be described here again. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

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

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

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

[0027] Figure 4 is a partial enlarged view of the display panel at position A in FIG. 1B provided by an embodiment of the present application; Figure 3

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

[0029] Figure 6 is a partial enlarged view of the display panel at position B in FIG. 2B provided by another embodiment of the present application; Figure 5

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

[0031] Reference Signs:

[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 portion, 1313, second electrode;

[0037] 140, encapsulation layer, 141, encapsulation unit, 1411, main portion, 1412 / 1413, extension portion;

[0038] 150, pixel definition layer. DETAILED DESCRIPTION

[0039] In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular architectures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application can be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known methods, devices, circuits, and

[0040] ​​It should also be understood that the term “and / or” as used herein refers to a combination of any one of the associated listed items or all, and includes all possible combinations.

[0041] It should be noted that when an element is referred to as being “fixed” or “set” 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”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the orientation or positional 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 particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

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

[0044] In the present application, the reference “one embodiment” or “some embodiments” and the like means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. Therefore, the statements “in one embodiment”, “in some embodiments”, “in other some embodiments”, “in further some embodiments” and the like appearing in different places in the specification are not necessarily all referring to the same embodiment, but mean “one or more but not all embodiments”, unless otherwise specifically emphasized. The terms “include”, “contain”, “have” and their variants mean “include but not limited to”, unless otherwise specifically emphasized. “Multiple” means two or more.

[0045] In the process of implementing the present application, the inventors found that the related art has the following problems: a display panel generally includes a substrate, a light-emitting layer provided on the substrate, a separation structure provided between two adjacent light-emitting units in the light-emitting layer, and an encapsulation layer provided on a side of the light-emitting layer away from the substrate, wherein the encapsulation layer at least partially extends to the separation structure, and external moisture is easy to enter the light-emitting layer from the position of the encapsulation layer, resulting in dark spots in the light-emitting units and affecting the display effect of the display panel.

[0046] In order to at least partially solve the problems in the related art, please refer to Figures 1 to 4The embodiment of the present application provides a manufacturing method of a display panel 100, which comprises the following steps.

[0047] In S102, a main material is arranged on one side of the substrate 110, and a first auxiliary material is added to form an isolation structure 120 including a preset element, and 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 glass, polyimide (PI), or the like. In some embodiments, the substrate 110 can further include an array substrate, and the array substrate is provided with a driving circuit for driving the light-emitting units 131 in the display area of the display panel 100 to emit light. Under the driving 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 realize multi-color display effect.

[0049] As shown in Figure 2 The isolation structure 120 is arranged on the substrate 110, and the isolation structure 120 surrounds the isolation opening 121 to at least partially accommodate the light-emitting units 131. The light emitted by each light-emitting unit 131 is blocked by the isolation structure 120 and does not interfere with the light emitted by the light-emitting unit 131 adjacent thereto, thereby avoiding signal crosstalk between the adjacent light-emitting units 131. The specific structure 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 further described in the patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 099072, CN117979755A, CN117998900A, CN117062489A, CN117580403A, CN116583155A, CN116669477A, CN117396039A, CN116669480A, CN116600606A, CN117500332A, and CN117062489A, for reference.

[0051] Compared with the related art, in the preparation process of the isolation structure 120, the first auxiliary material is added in addition to the main body material, and under the interaction of the main body material and the first auxiliary material, the isolation structure 120 includes a preset element, which can be any one of the elements possessed by the first auxiliary material and not possessed by the isolation structure in the related art.

[0052] S104, the light-emitting layer 130 and the encapsulation layer 140 are arranged on the side of the isolation structure 120 away from the substrate 110.

[0053] S106, the light-emitting layer 130 and the encapsulation layer 140 are etched to form the light-emitting unit 131 and the encapsulation unit 141 in the isolation opening 121, and the encapsulation unit 141 covers at least part of the surface of the isolation structure 120.

[0054] The light-emitting layer 130 is etched to form the light-emitting unit 131 in the isolation opening 121. Exemplarily, the light-emitting unit 131 can 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, etc. The number of different kinds of light-emitting units 131, the arrangement mode of the plurality of light-emitting units 131, and the spacing between adjacent two light-emitting units 131 can be flexibly set, which is not limited here. The light-emitting unit 131 can emit light under the driving action of the driving circuit. Specifically, the light-emitting function part 1312 in the light-emitting unit 131 can emit light under the action of the electric field. The light-emitting unit 131 can include a first electrode 1311, a second electrode 1313, and a light-emitting function part 1312. The first electrode 1311 and the second electrode 1313 can generate an electric field, so that the light-emitting function part 1312 emits light under the driving of the electric field.

[0055] The encapsulation layer 140 can encapsulate and protect the whole display panel 100. The encapsulation layer 140 can be a single-layer structure made of inorganic material or organic material, or a laminated structure made of at least one of inorganic material or organic material, which is not limited here. The encapsulation layer 140 includes a plurality of encapsulation units 141, each of which is arranged correspondingly to each light-emitting unit 131. The encapsulation unit 141 covers the side surface of the light-emitting unit 131 away from the substrate 110, and 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 stronger.

[0056] The manufacturing method of the display panel 100 in this embodiment of the application adds a first auxiliary material to the main material during the manufacturing process of the isolation structure 120, thereby forming an isolation structure 120 including preset elements. 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 part of the surface of the isolation structure 120, it can better adhere to the isolation structure 120, avoiding gaps between the encapsulation unit 141 and the isolation structure 120, or the encapsulation unit 141 falling off the isolation structure 120. This enhances the encapsulation effect of the isolation structure 120, thus preventing damage to the light-emitting unit 131 under the encapsulation unit 141 during subsequent manufacturing processes. This allows the light-emitting unit 131 to maintain structural integrity and avoid dark spots, thereby improving the display effect of the display panel 100.

[0057] In some embodiments, the encapsulation layer 140 includes a preset element that 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 correspondingly disposed with 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 a portion 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 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 further includes a pixel defining layer 150. The pixel defining layer 150 is disposed on the substrate 110 and defines a plurality of pixel openings that are spaced apart from each other. Each light-emitting unit 131 is disposed corresponding to each pixel opening. An isolation structure 120 is disposed on the side of the pixel defining layer 150 away from the substrate 110 and is located between at least two partially adjacent pixel openings.

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

[0060] S1022. A first main material is disposed on one side of the substrate 110 to form an isolation body 122.

[0061] S1024. A second main material is provided on the side of the isolator 122 away from the substrate 110, and a first auxiliary material is added to form a blocking portion 123. The orthogonal projection of the isolator 122 on the substrate 110 is located within the orthogonal 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 isolator 122.

[0062] That is, the isolation structure 120 includes a relatively independent isolation body 122 and a blocking part 123, the isolation body 122 is located on the substrate 110 or the pixel definition layer 150, the blocking part 123 is located on the side of the isolation body 122 away from the substrate 110, the area covered by the orthographic projection of the blocking part 123 on the substrate 110 is relatively large, and 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 part 123 on the substrate 110 can cover the orthographic projection of the isolation body 122 on the substrate 110. The cross-sectional shape of the isolation body 122 and the blocking part 123 can be a regular figure such as a rectangle, a trapezoid, etc., or an irregular figure. Figure 3 and Figure 4 In the embodiments shown in the drawings, the cross-sectional shape of the isolation body 122 and the blocking part 123 is a trapezoid.

[0063] In the isolation structure 120, the blocking part 123 is generated by the reaction of the second main material and the first auxiliary material, the blocking part 123 has the same preset element as in the packaging unit 141, so that the blocking part 123 of the isolation structure 120 includes the preset element, and the packaging unit 141 covers at least part of the surface of the blocking part 123, so that the packaging unit 141 can be better attached to the blocking part 123, better block the water vapor, and prevent the water vapor from invading the light-emitting unit 131 through the gap between the packaging unit 141 and the blocking part 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 packaging layer 140 (or the packaging unit 141) includes silicon nitride or silicon oxide; the preset element includes nitrogen or oxygen. That is, in step S1024, a titanium layer is arranged on the side of the isolation body 122 away from the substrate 110, and nitrogen, oxygen or ammonia is introduced at the same time, so that titanium reacts with nitrogen, oxygen or ammonia to generate a blocking part 123 including titanium nitride or titanium oxide. In this way, the first auxiliary material including nitrogen, oxygen or ammonia can better react with the second main material including titanium to generate a blocking part 123 including titanium nitride or titanium oxide, thereby having stronger adhesion with the packaging unit 141 including silicon nitride or silicon oxide.

[0065] As shown in Figure 4 In some embodiments, optionally, the isolation structure 120 further includes a base part 124, the base part 124 is arranged on the 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, a third main material is disposed on one side of the substrate 110 to form a base portion 124, and a normal projection of the isolation body 122 on the substrate 110 is located within a normal projection of the base portion 124 on the substrate 110.

[0067] That is, the base portion 124, the isolation body 122, and the barrier portion 123 in the isolation structure 120 are sequentially stacked, the area covered by the normal projection of the isolation body 122 on the substrate 110 is relatively small, and the area covered by the normal projection of the base portion 124 on the substrate 110 is relatively large, so that the normal projection of the base portion 124 on the substrate 110 can cover the normal projection of the isolation body 122 on the substrate 110. By disposing the base portion 124, the effect of the isolation structure 120 on blocking water vapor can be further improved.

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

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

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

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

[0072] In this way, the isolation body 122 including aluminum can be oxidized to form burrs (i.e., Al2O3) on the surface of the isolation body 122 after a preset time t, thereby playing a protective role on the isolation body 122, and also increasing the adhesion between the packaging unit 141 and the isolation body 122, avoiding the gap between the packaging unit 141 and the isolation body 122, or the packaging unit 141 falling off from the isolation body 122, thereby enhancing the packaging effect on the isolation body 122.

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

[0074] In some specific embodiments, the preset time t can be 72h, 75h, 87h, 96h, 100h, 120h, etc., which are only examples of the preset time t. In actual embodiments, the preset time t can also be other time lengths that meet the above range. By making the preset time t meet the above conditions, the isolator 122 including aluminum can be fully contacted with air, so that the surface of the isolator 122 is fully oxidized, the coverage of burrs formed is wider, and the adhesion between the encapsulation unit 141 and the isolator 122 is further increased.

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

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

[0077] The display panel 100 of the embodiment of the present application makes the isolation structure 120 comprise a preset element. 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 part of the surface of the isolation structure 120, the encapsulation unit 141 can be better attached to the isolation structure 120, avoiding the occurrence of a gap between the encapsulation unit 141 and the isolation structure 120 or the falling off of the encapsulation unit 141 from the isolation structure 120, thereby enhancing the encapsulation effect of the isolation structure 120. Therefore, the damage to the light-emitting unit 131 under the encapsulation unit 141 in the subsequent manufacturing process can be prevented, so that the light-emitting unit 131 can maintain structural integrity and not appear dark spots, thereby improving the display effect of the display panel 100.

[0078] As described above, in some embodiments, the isolation structure 120 comprises an isolator 122 and a blocking part 123. The blocking part 123 is arranged on a side of the isolator 122 away from the substrate 110, and the orthogonal projection of the isolator 122 on the substrate 110 is located in the orthogonal projection of the blocking part 123 on the substrate 110. Preferably, the encapsulation unit 141 covers at least part of the surface of the blocking part 123.

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

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

[0081] That is, in the present embodiment, the base portion 124, the isolation body 122 and the blocking portion 123 in the isolation structure 120 are sequentially stacked, the area covered by the orthogonal projection of the isolation body 122 on the substrate 110 is relatively small, and the area covered by the orthogonal projection of the base portion 124 on the substrate 110 is relatively large, so that the orthogonal projection of the base portion 124 on the substrate 110 can cover the orthogonal projection of the isolation 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 molybdenum-niobium alloy. In this way, the base portion 124 including molybdenum-niobium alloy is not easy to be oxidized even after a long time of contact with air, thereby avoiding the problem of high resistance caused by the contact 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 is simple in composition and inexpensive and easy to obtain; optionally, the packaging unit 141 includes the preset element, so that the adhesion between the packaging unit 141 and the isolation structure 120 is 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, and the packaging unit 141 can be better attached to the isolation structure 120 when covering at least part of the surface of the isolation structure 120, avoiding the gap between the packaging unit 141 and the isolation structure 120 or the separation of the packaging unit 141 from the isolation structure 120, thereby enhancing the packaging effect of the isolation structure 120, preventing damage to the light emitting unit 131 under the packaging unit 141 in the subsequent manufacturing process, and enabling the light emitting unit 131 to maintain structural integrity and avoid 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, a plurality of concave-convex structures are arranged on the side wall of the isolation body 122; preferably, the concave-convex structures include burrs.

[0084] The presence of the concave-convex structures makes the side wall of the isolation body 122 uneven, which can protect the isolation body 122 and increase the adhesion between the packaging unit 141 and the isolation body 122, so as to avoid the gap between the packaging unit 141 and the isolation body 122 or the separation of the packaging unit 141 from the isolation body 122, thereby enhancing the packaging effect of the isolation body 122.

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

[0086] In some embodiments, the extension 1412 of one of the two adjacent packaging units 141 at least partially overlaps the extension 1413 of the other packaging unit 141 on the substrate 110 to form an overlapping area. That is, the extension 1412 of one of the two adjacent packaging units 141 overlaps the extension 1413 of the other packaging unit 141, which can better protect the isolation structure 120.

[0087] Further, the extension 1412 of one of the two adjacent packaging units 141 at least extends to the side of the extension 1413 of the other packaging unit 141 away from the substrate 110.

[0088] In other embodiments, the extension 1413 of one of the two adjacent packaging units 141 at least extends to the side of the extension 1412 of the other packaging unit 141 away from the substrate 110.

[0089] In this way, the two adjacent packaging units 141 overlap each other to form a more compact packaging structure, which has a better protection effect.

[0090] Further, as shown in Figure 6 The orthogonal projection of the overlapping region on the substrate 110 is located within the orthogonal projection on the substrate 110 of the side surface of the isolation structure 120 away from the substrate 110. In this way, the influence of the overlapping region on other structures can be reduced.

[0091] Further, the display panel 100 can further include an organic encapsulation layer located on the side of the encapsulation layer 140 away from the substrate 110, and an inorganic encapsulation layer located on the side of the organic encapsulation layer away from the substrate 110. Through the above arrangement, the encapsulation effect of the display panel 100 can be further optimized.

[0092] Please refer to Figures 2 to 6 and refer to Figure 7 The display device 10 provided by the embodiment of the present application includes the 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 by the embodiment of the present application is applied to the display device 10 to provide the function of displaying pictures. The display device 10 can be any product or component with display function, including but not limited to mobile phones, tablet computers, notebook computers, e-readers, wearable devices, remote controls, televisions, desktop computers, and vehicle-mounted devices. Since the display panel 100 in any one of the above embodiments is used, the encapsulation unit 141 can be better attached to the isolation structure 120 when covering at least part of the surface of the isolation structure 120, avoiding the 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. Therefore, the damage to the light-emitting unit 131 under the encapsulation unit 141 in the subsequent manufacturing process can be prevented, so that the light-emitting unit 131 can maintain structural integrity and not appear 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 focus. The parts not described or recorded in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0095] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A method for manufacturing a display panel, characterized in that, The method comprises: a main material is arranged on one side of a substrate, and a first auxiliary material is added to form an isolation structure comprising a preset element, the isolation structure surrounds an isolation opening, the isolation structure comprises an isolation body and a barrier portion, the main material comprises a first main material and a second main material, the second main material comprises titanium, the first auxiliary material comprises nitrogen, oxygen or ammonia, and the preset element comprises nitrogen or oxygen; a light-emitting layer and an encapsulating layer are arranged on the side of the isolation structure away from the substrate; the light-emitting layer and the encapsulating layer are etched to form a light-emitting unit and an encapsulating unit in the isolation opening, the encapsulating unit covers at least part of the surface of the isolation structure, and the encapsulating unit comprises the preset element, wherein the step of arranging the main material on one side of the substrate and adding the first auxiliary material to form the isolation structure comprising the preset element comprises: 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 barrier portion, and the orthographic projection of the isolation body on the substrate is located within the orthographic projection of the barrier portion on the substrate.

2. The method of claim 1, wherein The encapsulating unit covers at least part of the surface of the barrier portion.

3. The method of claim 1, wherein The encapsulating unit comprises silicon nitride or silicon oxide.

4. The method of claim 1, wherein The isolation structure further comprises a base portion arranged on the side of the isolation body close to the substrate, the main material further comprises 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 the isolation structure comprising the preset element further comprises: 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.

5. The manufacturing method as described in claim 4, characterized in that, The third main material comprises molybdenum alloy.

6. The manufacturing method as described in claim 4, characterized in that, The third main material comprises molybdenum-niobium alloy.

7. The method of claim 1, wherein The second main material comprises aluminum.

8. The manufacturing method as described in claim 7, characterized in that, Before the step of arranging the light-emitting layer and the encapsulating layer on the side of the isolation structure away from the substrate, the method further comprises: waiting for a preset time t to allow the isolation body to be in sufficient contact with air to form burrs.

9. The manufacturing method as described in claim 8, characterized in that, The preset time t satisfies: t≥72h.

10. A display panel, characterized by, The method comprises: a substrate; an isolation structure arranged on one side of the substrate, the isolation structure comprising a preset element, the isolation structure surrounding an isolation opening, the isolation structure comprising an isolation body and a barrier portion, the barrier portion being arranged on the side of the isolation body away from the substrate, the orthographic projection of the isolation body on the substrate being located within the orthographic projection of the barrier portion on the substrate, the preset element comprising nitrogen or oxygen, and the barrier portion comprising titanium oxide or titanium nitride; 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 encapsulating layer located on the side of the light-emitting layer away from the substrate, the encapsulating layer comprising a plurality of encapsulating units, the encapsulating units covering the side surface of the light-emitting units away from the substrate and at least part of the surface of the isolation structure, and the encapsulating units comprising the preset element. The encapsulating unit covers at least part of the surface of the barrier portion.

11. The display panel of claim 10, wherein, ​ 12. The display panel of claim 10, wherein, The isolation structure also includes a base, which is located on the side of the isolation body near the substrate.

13. The display panel of claim 12, wherein, The orthographic projection of the isolator on the substrate lies within the orthographic projection of the base on the substrate.

14. The display panel of claim 13, wherein, The base comprises a molybdenum-niobium alloy.

15. The display panel of claim 10, wherein, The packaging unit includes silicon nitride or silicon oxide.

16. The display panel of claim 10, wherein, The sidewall of the isolator has multiple concave and convex structures.

17. The display panel of claim 16, wherein, The uneven structure includes burrs.

18. The display panel of claim 10, wherein, The encapsulation unit includes a main body and an extension connected to each other. The main body covers the surface of the light-emitting unit away from the substrate, and the extension extends at least partially to the side of the isolation structure away from the substrate located on one side of the isolation opening.

19. The display panel of claim 18, wherein, In two adjacent packaging units, the orthographic projection of the extension of one of the packaging units onto the substrate at least partially overlaps with the orthographic projection of the extension of the other packaging unit onto the substrate, forming an overlapping region.

20. The display panel of claim 19, wherein, The orthographic projection of the overlapping region on the substrate lies within the orthographic projection of the side surface of the isolation structure away from the substrate on the substrate.

21. A display device comprising: include: A display panel manufactured by the method of manufacturing a display panel according to any one of claims 1 to 9; or The display panel according to any one of claims 10 to 20.

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