Display panel, preparation method of display panel and electronic device

Abstract

The embodiment of the application provides a display panel, a preparation method of the display panel and electronic equipment, and relates to the technical field of display. The display panel comprises a substrate, an isolation structure, a protective layer, a light emitting unit and a first encapsulation layer. The isolation structure is located on one side of the substrate, and the isolation structure is enclosed to form an isolation opening. The protective layer is located on the side of the isolation structure away from the substrate, and the orthographic projection of the protective layer on the substrate at least partially overlaps the orthographic projection of the isolation structure on the substrate. At least part of the light emitting unit is located in the isolation opening. The first encapsulation layer is located on the side of the light emitting unit away from the substrate, and the first encapsulation layer comprises a plurality of encapsulation units arranged at intervals. At least part of the encapsulation units extends from the side of the isolation structure facing the isolation opening to the side of the protective layer away from the substrate. The application can prevent the side of the isolation structure away from the substrate from being easily warped, so that the light emitting unit is not easily darkened, and the display effect of the display panel can be improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically, to a display panel, a method for manufacturing the display panel, and an electronic device. Background Technology

[0002] Organic light-emitting diodes (OLEDs) and flat panel displays based on light-emitting diodes (LEDs) are widely used in various consumer electronics products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body, and wide range of applications, becoming the mainstream of display panels.

[0003] However, there are still some problems with the display panel that need to be addressed. Summary of the Invention

[0004] To overcome the technical problems mentioned in the background, this application provides a display panel, which includes:

[0005] Substrate;

[0006] An isolation structure is located on one side of the substrate, and the isolation structure encloses an isolation opening;

[0007] A protective layer is located on the side of the isolation structure away from the substrate, and the orthographic projection of the protective layer on the substrate at least partially overlaps with the orthographic projection of the isolation structure on the substrate;

[0008] The light-emitting unit is at least partially located within the isolation opening;

[0009] A first encapsulation layer is located on the side of the light-emitting unit away from the substrate. The first encapsulation layer includes a plurality of encapsulation units spaced apart, and at least a portion of the encapsulation units extend from the side of the isolation structure toward the isolation opening to the side of the protective layer away from the substrate.

[0010] In some possible implementations, the isolation structure includes a first isolation portion and a second isolation portion stacked along a direction away from the substrate, and the protective layer includes a first protective portion located on the side of the second isolation portion away from the substrate, wherein the hardness of the first protective portion is greater than the hardness of the second isolation portion; the orthographic projection of the side of the first isolation portion away from the substrate onto the substrate lies within the orthographic projection of the second isolation portion onto the substrate.

[0011] Preferably, the orthographic projection of the first protective portion on the substrate coincides with the orthographic projection of the second insulating portion on the substrate;

[0012] Preferably, the protective layer encloses a protective opening, and the orthographic projection of the protective opening on the substrate coincides with the orthographic projection of the isolation opening on the substrate.

[0013] In some possible implementations, the protective layer further includes a second protective portion located on the side of the first protective portion away from the substrate, wherein the adhesiveness of the second protective portion is greater than that of the first protective portion;

[0014] Preferably, the second isolation part and the second protective part are made of the same material;

[0015] Preferably, the material of the first protective part includes titanium nitride, and / or the material of the second protective part includes titanium;

[0016] Preferably, the display panel further includes a second encapsulation layer located on the side of the first encapsulation layer away from the substrate, the second encapsulation layer being in contact with the side of the second protective portion away from the substrate.

[0017] In some possible implementations, a receiving cavity is formed between the second protective portion and the second isolation portion, and the first protective portion is located within the receiving cavity.

[0018] In some possible implementations, the orthographic projection of the second protective portion onto the substrate coincides with the orthographic projection of the first protective portion onto the substrate;

[0019] Preferably, along the thickness direction of the substrate, the thickness of the first protective portion is greater than or equal to... and less than or equal to

[0020] Preferably, along the thickness direction of the substrate, the thickness of the second protective portion is greater than or equal to... and less than or equal to

[0021] In some possible implementations, the isolation structure further includes a third isolation portion located on the side of the first isolation portion facing the substrate, and the light-emitting unit includes a second electrode, which is electrically connected to the third isolation portion and / or the first isolation portion;

[0022] Preferably, the material of the third isolation portion includes molybdenum; and / or, the material of the first isolation portion includes aluminum; and / or, the material of the second isolation portion includes titanium.

[0023] In some possible implementations, the light-emitting unit includes a first electrode, and the display panel further includes a barrier layer located between the first electrode and the substrate, the barrier layer including a blocking portion, the orthographic projection of the blocking portion on the substrate at least partially overlapping the orthographic projection of the first electrode on the substrate;

[0024] Preferably, the barrier portion comprises a water-resistant material.

[0025] In some possible implementations, the barrier layer is characterized by comprising a plurality of the barrier portions spaced apart;

[0026] Preferably, the orthographic projection of the first electrode on the substrate is located within the orthographic projection of the blocking portion on the substrate.

[0027] In some possible implementations, the display panel further includes:

[0028] A conductive layer is located on one side of the substrate, and the conductive layer includes conductive traces;

[0029] An insulating layer is located between the conductive layer and the barrier layer. Along the thickness direction of the substrate, the insulating layer has a via that penetrates the insulating layer. The barrier portion includes a conductive material, extends into the via, and is electrically connected to the conductive trace. The first electrode is electrically connected to the barrier portion.

[0030] Preferably, the blocking portion includes a second blocking sub-portion, which is made of a conductive material and a water-resistant material.

[0031] In some possible implementations, the blocking portion includes a first blocking sub-portion, a second blocking sub-portion, and a third blocking sub-portion stacked sequentially in a direction away from the substrate; the second blocking sub-portion is a conductive material and a water-resistant material, the first blocking sub-portion and the second blocking sub-portion are both conductive materials, and the adhesiveness of the first blocking sub-portion and the third blocking sub-portion is greater than that of the second blocking sub-portion;

[0032] Preferably, along the thickness direction of the substrate, the thickness of the first blocking portion is greater than or equal to... and less than or equal to

[0033] Preferably, along the thickness direction of the substrate, the thickness of the second blocking portion is greater than or equal to... and less than or equal to

[0034] Preferably, along the thickness direction of the substrate, the thickness of the third blocking portion is greater than or equal to... and less than or equal to

[0035] Preferably, the material of the first blocking sub-part includes titanium; and / or, the material of the second blocking sub-part includes titanium nitride; and / or, the material of the third blocking sub-part includes titanium.

[0036] In some possible implementations, this application also provides a display panel, the display panel comprising:

[0037] Substrate;

[0038] A conductive layer is located on one side of the substrate, and the conductive layer includes conductive traces;

[0039] An insulating layer is located on the side of the conductive layer away from the substrate, and a through-hole is provided on the insulating layer along the thickness direction of the substrate;

[0040] A barrier layer is located on the side of the insulating layer away from the substrate, and the barrier layer includes a barrier portion;

[0041] A light-emitting unit is located on the side of the barrier layer away from the substrate. The light-emitting unit includes a first electrode. The orthographic projection of the barrier portion on the substrate at least partially overlaps with the orthographic projection of the first electrode on the substrate. The barrier portion includes a conductive material and a water-resistant material. The barrier portion extends into the via and is electrically connected to the conductive trace. The first electrode is electrically connected to the barrier portion.

[0042] In some possible implementations, the blocking portion includes a first blocking sub-portion, a second blocking sub-portion, and a third blocking sub-portion stacked sequentially in a direction away from the substrate;

[0043] Preferably, along the thickness direction of the substrate, the thickness of the first blocking portion is greater than or equal to... and less than or equal to

[0044] Preferably, along the thickness direction of the substrate, the thickness of the second blocking portion is greater than or equal to... and less than or equal to

[0045] Preferably, along the thickness direction of the substrate, the thickness of the third blocking portion is greater than or equal to... and less than or equal to

[0046] Preferably, the material of the first blocking sub-part includes titanium; and / or, the material of the second blocking sub-part includes titanium nitride; and / or, the material of the third blocking sub-part includes titanium.

[0047] In some possible implementations, this application also provides a display panel, the display panel comprising:

[0048] Substrate;

[0049] An isolation structure is located on one side of the substrate, and the isolation structure encloses and forms an isolation opening. The isolation structure includes a first isolation portion, a first protective portion, and a second isolation portion stacked sequentially in a direction away from the substrate. The hardness of the first protective portion is greater than the hardness of the second isolation portion. The orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the first protective portion on the substrate. The orthographic projection of the second isolation portion on the substrate overlaps with the orthographic projection of the first protective portion on the substrate.

[0050] The light-emitting unit is at least partially located within the isolation opening, and the light-emitting unit includes a second electrode that is electrically connected to the first isolation portion.

[0051] In some possible implementations, the isolation structure further includes a second protective portion disposed between the first isolation portion and the first protective portion, wherein the adhesive strength of the second protective portion is greater than that of the first protective portion;

[0052] Preferably, the material of the first protective part includes titanium nitride, and / or the material of the second protective part includes titanium, and / or the material of the first isolation part includes aluminum; and / or the material of the second isolation part includes titanium.

[0053] In some possible implementations, this application also provides an electronic device, which includes the display panel described in this application.

[0054] Compared with the prior art, this application has the following beneficial effects:

[0055] This application provides a display panel, a method for manufacturing the display panel, and an electronic device. By providing a protective layer on the side of the isolation structure away from the substrate, the side of the isolation structure away from the substrate is less prone to warping, thereby making it less likely for the light-emitting unit to generate dark spots, and thus improving the display effect of the display panel. Attached Figure Description

[0056] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0057] Figure 1One of the cross-sectional schematic diagrams of a display panel including a protective portion provided in the embodiments of this application;

[0058] Figure 2 A cross-sectional schematic diagram of a display panel whose protective portion includes a first protective portion and a second protective portion, provided for embodiments of this application;

[0059] Figure 3a A top view of the second protective part provided in an embodiment of this application;

[0060] Figure 3b A cross-sectional schematic diagram showing the first protective part located within the accommodating cavity, as provided in an embodiment of this application;

[0061] Figure 4 A cross-sectional schematic diagram of the display panel provided in the embodiments of this application, including a second encapsulation layer and a third encapsulation layer;

[0062] Figure 5 One of the cross-sectional schematic diagrams of a display panel including a barrier layer provided in the embodiments of this application;

[0063] Figure 6 A cross-sectional schematic diagram of a display panel provided in the embodiments of this application, comprising a first blocking portion, a second blocking portion, and a third blocking portion;

[0064] Figure 7 A second cross-sectional schematic diagram of the display panel including the blocking layer provided in the embodiments of this application;

[0065] Figure 8 A second cross-sectional schematic diagram of the display panel including the protective portion provided in the embodiments of this application;

[0066] Figure 9 A schematic flowchart illustrating a method for manufacturing a display panel according to an embodiment of this application;

[0067] Figure 10 A cross-sectional schematic diagram showing a conductive layer formed on one side of a substrate, provided for an embodiment of this application;

[0068] Figure 11 A cross-sectional schematic diagram showing an insulating layer formed on the side of the conductive layer away from the substrate, provided for an embodiment of this application;

[0069] Figure 12 A schematic cross-sectional view of a barrier layer formed on the side of the insulating layer away from the substrate, provided for an embodiment of this application;

[0070] Figure 13 A schematic cross-section showing a first electrode layer formed on the side of the barrier layer away from the substrate, as provided in an embodiment of this application;

[0071] Figure 14This is a cross-sectional view showing a pixel defining material layer, an isolation material layer, and a protective material layer sequentially formed on one side of a substrate, as provided in the embodiments of this application.

[0072] Figure 15 This is a cross-sectional view of the protective material layer, the isolation material layer, and the pixel defining material layer after patterning in sequence, as provided in the embodiments of this application.

[0073] Reference numerals: 1. Substrate; 2. First electrode; 3. Light-emitting part; 4. Second electrode; 5. Light-emitting unit; 6. Isolation structure; 61. First isolation part; 62. Second isolation part; 63. Third isolation part; 7. First encapsulation layer; 71. Encapsulation unit; 8. Protective layer; 801. Protective opening; 81. First protective part; 82. Second protective part; 9. Isolation opening; 10. Pixel defining layer; 101. Pixel opening; 11. Second encapsulation layer; 12. Third encapsulation layer; 13. Conductive layer; 131. Conductive trace; 14. Insulating layer; 141. Via; 15. Blocking part; 151. First blocking sub-part; 152. Second blocking sub-part; 153. Third blocking sub-part; 16. Pixel defining material layer; 17. Isolation material layer; 18. Protective material layer; 19. Receiving cavity. Detailed Implementation

[0074] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0075] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0076] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0077] In the description of this application, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0078] It should be noted that, where there is no conflict, different features in the embodiments of this application can be combined with each other.

[0079] Increasing the density of light-emitting units (i.e., pixel density) in a display panel is a crucial way to improve display quality. However, current display panels manufactured using Fine Metal Mask (FMM) technology are limited by technological constraints, preventing further increases in light-emitting unit density. Through long-term research, the inventors discovered that to address this technical challenge, some display panels incorporate isolation structures. During the full-layer vapor deposition of the light-emitting functional layer and the second electrode, the light-emitting functional layer and the second electrode can be disconnected at the isolation structure. By employing multiple vapor deposition and etching processes (i.e., light-emitting unit patterning), light-emitting units of different colors can be formed within different isolation openings.

[0080] Among them, patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 099072, CN117979755A, and CN1179 CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, and CN117500332A describe relevant technical solutions for isolation structures, the contents of which are incorporated herein by reference.

[0081] The display panel in the related technology includes a substrate, an isolation structure located on one side of the substrate, a light-emitting unit located within an isolation opening formed by the isolation structure, and an encapsulation unit located on the side of the light-emitting unit away from the substrate. The encapsulation unit can encapsulate the light-emitting unit. However, in the related technology, the light-emitting unit is prone to dark spots, which affects the display effect of the display panel.

[0082] To address the aforementioned technical problems, the inventors have innovatively designed the following technical solutions, which will be described in detail below with reference to the accompanying drawings. It should be noted that the deficiencies in the existing solutions are the result of the inventors' practical experience and careful research. Therefore, the discovery process of the aforementioned technical problems and the solutions proposed in this embodiment below are contributions made by the inventors to this application during the invention process, and should not be construed as technical content known to those skilled in the art.

[0083] Please see Figure 1 This embodiment provides a display panel, which includes a substrate 1, an isolation structure 6, a protective layer 8, a light-emitting unit 5, and a first encapsulation layer 7.

[0084] The isolation structure 6 is located on one side of the substrate 1, and the isolation structure 6 encloses and forms an isolation opening 9; the protective layer 8 is located on the side of the isolation structure 6 away from the substrate 1, and the orthographic projection of the protective layer 8 on the substrate 1 at least partially overlaps with the orthographic projection of the isolation structure 6 on the substrate 1.

[0085] At least some of the light-emitting units 5 are located within the isolation opening 9; the first encapsulation layer 7 is located on the side of the light-emitting unit 5 away from the substrate 1, and the first encapsulation layer 7 includes a plurality of encapsulation units 71 spaced apart, and at least some of the encapsulation units 71 extend from the side of the isolation structure 6 toward the isolation opening 9 to the side of the protective layer 8 away from the substrate 1.

[0086] In related technologies, during the fabrication of the display panel, the side of the isolation structure 6 away from the substrate 1 is prone to warping, which can easily create gaps between the encapsulation unit 71 and the isolation structure 6. Etching solution can easily reach the light-emitting unit 5 through the gaps between the encapsulation unit 71 and the isolation structure 6, thereby easily causing dark spots in the light-emitting unit 5.

[0087] In this embodiment, a protective layer 8 is provided on the side of the isolation structure 6 away from the substrate 1. The protective layer 8 can protect the isolation structure 6. During the manufacturing process of the display panel, the side of the isolation structure 6 away from the substrate 1 is less likely to warp, making it less likely for gaps to form between the encapsulation unit 71 and the isolation structure 6. The etching solution is less likely to damage the light-emitting unit 5, thereby making it less likely for the light-emitting unit 5 to produce dark spots, which can improve the display effect of the display panel.

[0088] Based on the above design, this embodiment provides a protective layer 8 on the side of the isolation structure 6 away from the substrate 1, which makes it less likely for the side of the isolation structure 6 away from the substrate 1 to warp, thereby making it less likely for the light-emitting unit 5 to generate dark spots, and thus improving the display effect of the display panel.

[0089] For some possible implementations, please refer to Figure 2 The isolation structure 6 includes a first isolation portion 61 and a second isolation portion 62 stacked along the direction away from the substrate 1. The protective layer 8 includes a first protective portion 81 located on the side of the second isolation portion 62 away from the substrate 1. The hardness of the first protective portion 81 is greater than the hardness of the second isolation portion 62.

[0090] In related technologies, the second isolation portion 62 is prone to warping during the fabrication of the display panel. In this embodiment, a first protective portion 81 is provided on the side of the second isolation portion 62 away from the substrate 1, and the hardness of the first protective portion 81 is greater than that of the second isolation portion 62, that is, the stiffness of the first protective portion 81 is greater than that of the second isolation portion 62. In this way, the overall hardness of the second isolation portion 62 and the first protective portion 81 can be increased, and during the fabrication of the display panel, the second isolation portion 62 and the first protective portion 81 are less likely to warp together, thereby making it less likely for the light-emitting unit 5 to generate dark spots.

[0091] Preferably, please see again. Figure 2 The orthographic projection of the first protective portion 81 on the substrate 1 coincides with the orthographic projection of the second insulating portion 62 on the substrate 1. In this way, the overall rigidity of the second insulating portion 62 and the first protective portion 81 can be further improved, making the second insulating portion 62 and the first protective portion 81 less prone to warping as a whole.

[0092] Preferably, please see again. Figure 2 The protective layer 8 encloses and forms a protective opening 801, and the orthographic projection of the protective opening 801 on the substrate 1 coincides with the orthographic projection of the isolation opening 9 on the substrate 1.

[0093] Optionally, the orthographic projection shape of the protective layer 8 on the substrate 1 is the same as the orthographic projection shape of the isolation structure 6 on the substrate 1.

[0094] Optionally, please see Figure 3a The protective layer 8 appears as a mesh when projected onto the substrate 1.

[0095] In this way, the protective layer 8 can better protect the second isolation section 62, and the light-emitting unit 5 can be more easily placed in the isolation opening 9.

[0096] In some possible implementations, please refer again. Figure 2 The protective layer 8 also includes a second protective portion 82 located on the side of the first protective portion 81 away from the substrate 1, and the orthographic projection of the second protective portion 82 on the substrate 1 coincides with the orthographic projection of the first protective portion 81 on the substrate 1.

[0097] The second isolation section 62, the first protection section 81, and the second protection section 82 as a whole have greater rigidity, thus making it less likely for the second isolation section 62, the first protection section 81, and the second protection section 82 as a whole to warp.

[0098] Optionally, the second isolation section 62 is made of the same material as the second protection section 82.

[0099] Preferably, the material of the first protective part 81 includes titanium nitride, and / or the material of the second protective part 82 includes titanium. Appropriate selection of the material of the first protective part 81 can improve its hardness, and appropriate selection of the material of the second protective part 82 can improve its adhesion.

[0100] Preferably, please refer to Figure 3b A receiving cavity 19 is formed between the second protective part 82 and the second isolation part 62, and the first protective part 81 is located within the receiving cavity 19. The second isolation part 62 extends through the side wall of the first protective part 81 to contact the second isolation part 62. Thus, a closed receiving cavity 19 is formed between the second protective part 82 and the second isolation part 62, and the first protective part 81 is located within the closed receiving cavity 19. This allows the first protective part 81, the second protective part 82, and the second isolation part 62 to form a whole with higher hardness and better stability.

[0101] Preferably, along the thickness direction Z of the substrate 1, the thickness D1 of the first protective portion 81 is greater than or equal to... and less than or equal to For example, the thickness D1 can be By setting the thickness D1 appropriately, the second isolation section 62 can be made less prone to warping.

[0102] Preferably, along the thickness direction Z of the substrate 1, the thickness D2 of the second protective portion 82 is greater than or equal to... and less than or equal to For example, the thickness D2 can be By setting the thickness D2 appropriately, the second isolation section 62 can be made less prone to warping.

[0103] Preferably, the adhesiveness of the second protective part 82 is greater than that of the first protective part 81.

[0104] Since the second protective part 82 has greater adhesiveness than the first protective part 81, the second protective part 82 is easier to bond than the first protective part 81. The film layer on the side of the second protective part 82 away from the substrate 1 has a greater adhesive force and a better bonding effect with the second protective part 82, thereby improving the quality of the display panel.

[0105] Preferably, please refer to Figure 4 The display panel also includes a second encapsulation layer 11 located on the side of the first encapsulation layer 7 away from the substrate 1, and the second encapsulation layer 11 is in contact with the side of the second protective portion 82 away from the substrate 1.

[0106] Because the adhesion between the second encapsulation layer 11 and the second protective portion 82 can be increased, the second encapsulation layer 11 can be more stably disposed on the side of the second isolation portion 62 away from the substrate 1.

[0107] Preferably, please see again. Figure 4 The display panel also includes a third encapsulation layer 12 located on the side of the second encapsulation layer 11 away from the substrate 1. The materials of the first encapsulation layer 7 and the third encapsulation layer 12 both include inorganic materials; the material of the second encapsulation layer 11 includes organic materials.

[0108] For example, the first encapsulation layer 7 and the third encapsulation layer 12 can be formed by chemical vapor deposition (CVD), and the second encapsulation layer 11 can be formed by inkjet printing (IJP). The second encapsulation layer 11 and the third encapsulation layer 12 can achieve a better encapsulation effect on the light-emitting unit 5, thereby further improving the encapsulation quality of the display panel.

[0109] Preferably, please see again. Figure 4 The light-emitting unit 5 includes a first electrode 2, a light-emitting part 3, and a second electrode 4 stacked in a direction away from the substrate 1. The display panel also includes a pixel defining layer 10 located between the first electrode 2 and the isolation structure 6. The pixel defining layer 10 includes a pixel opening 101, which exposes a portion of the first electrode 2.

[0110] The isolation structure 6 allows the display panel to form film layers of different colors of light-emitting units 5 in different isolation openings 9 without the need for a fine mask. When forming the light-emitting material layer, the isolation structure 6 separates the light-emitting material layer into multiple spaced-apart light-emitting portions 3. When forming the second electrode material layer, the isolation structure 6 separates the second electrode material layer into multiple spaced-apart second electrodes 4. The isolation structure 6 includes a conductive material, and the second electrodes 4 are electrically connected to the isolation structure 6. One first electrode 2, one light-emitting portion 3, and one second electrode 4 form one light-emitting unit 5. The first electrode 2 can be an anode, and the second electrode 4 can be a cathode.

[0111] In this way, different light-emitting units 5 can be made independent of each other, thereby reducing crosstalk between adjacent light-emitting units 5 and improving the display effect of the display panel. At the same time, due to the presence of the isolation structure 6, the light-emitting material layer and the second electrode material layer in each color light-emitting unit 5 of the display panel can be prepared as a whole before patterning, thereby eliminating the need for a fine mask and saving the manufacturing cost of the display panel.

[0112] Preferably, please see again. Figure 4 The packaging unit 71 is spaced apart on the side of the isolation structure 6 away from the substrate 1; there is a gap between the packaging unit 71 located on the side of the second protection part 82 away from the substrate 1 and the side of the second protection part 82 away from the substrate 1; the orthographic projection of the packaging unit 71 on the substrate 1 covers the orthographic projection of the isolation opening 9 on the substrate 1 and covers the orthographic projection of the partial isolation structure 6 on the substrate 1.

[0113] During the patterning process of the light-emitting unit 5, the encapsulation unit 71 is disconnected at the isolation structure 6 to form the encapsulation unit 71. The encapsulation unit 71 can completely and independently encapsulate the corresponding light-emitting unit 5, thereby improving the display characteristics of the display panel.

[0114] For some possible implementations, please refer to Figure 5 The display panel also includes a barrier layer located between the first electrode 2 and the substrate 1. The barrier layer includes a barrier portion 15, the orthographic projection of the barrier portion 15 on the substrate 1 at least partially overlaps with the orthographic projection of the first electrode 2 on the substrate 1, and the barrier portion 15 includes a water-resistant material.

[0115] In related technologies, water vapor in the film layer near the substrate 1 of the first electrode 2 can easily come into contact with the first electrode 2. Since the first electrode 2 includes conductive material, the water vapor can easily oxidize the first electrode 2, thereby easily causing the corresponding light-emitting unit 5 to produce dark spots.

[0116] In this embodiment, a barrier layer is provided on the side of the first electrode 2 near the substrate 1, which is in contact with each other. The barrier layer can prevent water vapor in the film layer on the side of the first electrode 2 near the substrate 1 from contacting the first electrode 2, thereby reducing the risk of dark spots in the light-emitting unit 5 and improving the display effect of the display panel.

[0117] Preferably, the barrier layer includes a plurality of barrier portions 15 spaced apart, and the orthographic projection of the first electrode 2 on the substrate 1 lies within the orthographic projection of the barrier portion 15 on the substrate 1. In this way, water vapor in the film layer on the side of the first electrode 2 closest to the substrate 1 is less likely to come into contact with the first electrode 2.

[0118] In some possible implementations, please refer again. Figure 5 The display panel also includes a conductive layer 13 and an insulating layer 14.

[0119] The conductive layer 13 is located on one side of the substrate 1 and includes conductive traces 131. The insulating layer 14 is located between the conductive layer 13 and the barrier layer along the thickness direction Z of the substrate 1. The insulating layer 14 has a via 141 that penetrates the insulating layer 14. The first electrode 2 is electrically connected to the conductive traces 131 through the via 141.

[0120] The display panel further includes a buffer layer, a semiconductor layer, a first conductive layer, a second conductive layer, a third conductive layer, and a fourth conductive layer, sequentially stacked on one side of the substrate 1. The semiconductor layer includes a source region, a drain region, and a channel region. The first conductive layer includes a gate and a first capacitor plate. The second conductive layer includes a second capacitor plate, which together form a capacitor. The third conductive layer includes a drain and a source, with the drain electrically connected to the drain region and the source electrically connected to the source region. The gate, source, and drain form a driving transistor. In this embodiment, conductive trace 131 is located on the fourth conductive layer. The side of conductive trace 131 closest to the substrate 1 is electrically connected to the drain of the driving transistor, and the side of conductive trace 131 furthest from the substrate 1 is electrically connected to the first electrode 2 through a via 141. Thus, the signal driving the transistor can be transmitted to the first electrode 2 through conductive trace 131 to illuminate the corresponding light-emitting unit 5.

[0121] A planarization layer is provided between the fourth conductive layer and the first electrode 2. In this embodiment, the insulating layer 14 includes a planarization layer. By providing a barrier layer between the insulating layer 14 and the first electrode 2, the moisture in the insulating layer 14 can be prevented from contacting the first electrode 2.

[0122] Preferably, the blocking portion 15 comprises a conductive material, extends into the via 141 and is electrically connected to the conductive trace 131, and the first electrode 2 is electrically connected to the blocking portion 15. Thus, the first electrode 2 is electrically connected to the conductive trace 131 through the blocking portion 15, and the side of the first electrode 2 closer to the substrate 1 is in electrical contact with the side of the blocking portion 15 away from the substrate 1. Therefore, the resistance of the first electrode 2 can be reduced, and the performance of the light-emitting unit 5 can be improved.

[0123] For some possible implementations, please refer to Figure 6 The blocking portion 15 includes a first blocking sub-portion 151, a second blocking sub-portion 152, and a third blocking sub-portion 153 stacked sequentially in a direction away from the substrate 1. The second blocking sub-portion 152 is a conductive material and a water-resistant material. The first blocking sub-portion 151 and the second blocking sub-portion 152 are both conductive materials. The adhesiveness of the first blocking sub-portion 151 and the third blocking sub-portion 153 is greater than that of the second blocking sub-portion 152.

[0124] Optionally, along the thickness direction Z of the substrate 1, the thickness H1 of the first blocking sub-portion 151 is greater than or equal to and less than or equal to For example, the thickness H1 can be or wait.

[0125] Optionally, along the thickness direction Z of the substrate 1, the thickness H2 of the second blocking portion 152 is greater than or equal to and less than or equal to For example, the thickness H2 can be or wait.

[0126] Optionally, along the thickness direction Z of the substrate 1, the thickness H3 of the third blocking sub-section 153 is greater than or equal to and less than or equal to For example, the thickness H3 can be or wait.

[0127] Optionally, the material of the first blocking sub-section 151 includes titanium; and / or, the material of the second blocking sub-section 152 includes titanium nitride; and / or, the material of the third blocking sub-section 153 includes titanium.

[0128] Titanium has better adhesion than titanium nitride, and titanium nitride has greater hardness than titanium. Therefore, by selecting appropriate materials and setting appropriate thicknesses for the first blocking part 151, the second blocking part 152, and the third blocking part 153, the stability of the blocking part 15 between the first electrode 2 and the insulating layer 14 can be improved, as can the hardness of the blocking part 15. This can further enhance the effect of the blocking part 15 in blocking water vapor in the insulating layer 14.

[0129] In some possible implementations, please refer again. Figure 5 The orthographic projection of the side of the first isolation portion 61 away from the substrate 1 on the substrate 1 is located within the orthographic projection of the second isolation portion 62 on the substrate 1.

[0130] Since the second isolation portion 62 is located on the side of the first isolation portion 61 away from the substrate 1, and on a plane parallel to the substrate 1, the lateral width of the second isolation portion 62 is greater than the lateral width of the first isolation portion 61. Therefore, the second isolation portion 62 causes the light-emitting material layer and the second electrode material layer to be disconnected at the isolation structure 6. In this way, the isolation structure 6 formed by the first isolation portion 61 and the second isolation portion 62 can more easily allow each light-emitting unit 5 to be independently packaged, thereby improving the packaging yield of the display panel.

[0131] Please see again Figure 5The second electrode 4 of the light-emitting unit 5 is electrically connected to the first isolation part 61. The first isolation part 61 includes a conductive material, and the second electrode 4 corresponding to the light-emitting unit 5 extends to contact the side wall of the first isolation part 61 so as to realize the electrical connection between the second electrode 4 corresponding to the light-emitting unit 5 and the first isolation part 61.

[0132] Please see again Figure 6 The isolation structure 6 also includes a third isolation portion 63 located on the side of the first isolation portion 61 facing the substrate 1, and the light-emitting unit 5 includes a second electrode 4, which is electrically connected to the third isolation portion 63 and the first isolation portion 61.

[0133] The third isolation section 63 includes a conductive material, and the second electrode 4 corresponding to the light-emitting unit 5 extends to contact the side wall of the third isolation section 63 so as to realize the electrical connection between the second electrode 4 corresponding to the light-emitting unit 5 and the third isolation section 63.

[0134] Specifically, the material of the third isolation portion 63 includes molybdenum; and / or, the material of the first isolation portion 61 includes aluminum; and / or, the material of the second isolation portion 62 includes titanium. Thus, when the isolation structure 6 isolates the second electrode material layer as the second electrode 4, the second electrode 4 is more easily electrically connected to the first isolation portion 61 and / or the third isolation portion 63.

[0135] The orthographic projection of the light-emitting part 3 on the substrate 1 is outside the orthographic projection of the third isolation part 63 and / or the first isolation part 61 on the substrate 1. In this way, the light-emitting part 3 does not overlap with the isolation structure 6, thereby effectively improving the crosstalk problem between the light-emitting units 5.

[0136] For some possible implementations, please refer to Figure 7 This application also provides a display panel, which includes a substrate 1, a conductive layer 13, an insulating layer 14, a blocking layer, and a light-emitting unit 5.

[0137] The conductive layer 13 is located on one side of the substrate 1 and includes conductive traces 131; the insulating layer 14 is located on the side of the conductive layer 13 away from the substrate 1 and along the thickness direction Z of the substrate 1, and the insulating layer 14 has a via 141 that penetrates the insulating layer 14.

[0138] The barrier layer is located on the side of the insulating layer 14 away from the substrate 1, and the barrier layer includes a barrier portion 15.

[0139] The light-emitting unit 5 is located on the side of the barrier layer away from the substrate 1. The light-emitting unit 5 includes a first electrode 2. The orthographic projection of the barrier portion 15 on the substrate 1 at least partially overlaps with the orthographic projection of the first electrode 2 on the substrate 1. The barrier portion 15 includes a conductive material and a water-resistant material. The barrier portion 15 extends into the via 141 and is electrically connected to the conductive trace 131. The first electrode 2 is electrically connected to the barrier portion 15.

[0140] In related technologies, water vapor in the film layer near the substrate 1 of the first electrode 2 can easily come into contact with the first electrode 2. Since the first electrode 2 includes conductive material, the water vapor can easily oxidize the first electrode 2, thereby easily causing the corresponding light-emitting unit 5 to produce dark spots.

[0141] In this embodiment, a barrier layer is provided on the side of the first electrode 2 near the substrate 1, which is in contact with each other. The barrier layer can prevent water vapor in the film layer on the side of the first electrode 2 near the substrate 1 from contacting the first electrode 2, thereby reducing the risk of dark spots in the light-emitting unit 5 and improving the display effect of the display panel.

[0142] The remaining technical solutions of the display panel in this embodiment are the same as those in the above embodiments, and will not be repeated here.

[0143] For some possible implementations, please refer to Figure 8 This application also provides a display panel, which includes a substrate 1, an isolation structure 6, and a light-emitting unit 5.

[0144] The isolation structure 6 is located on one side of the substrate 1. The isolation structure 6 encloses and forms an isolation opening 9. The isolation structure 6 includes a first isolation part 61, a first protective part 81 and a second isolation part 62, which are stacked sequentially in a direction away from the substrate 1. The hardness of the first protective part 81 is greater than that of the second isolation part 62. The orthographic projection of the first isolation part 61 on the substrate 1 is located within the orthographic projection of the first protective part 81 on the substrate 1. The orthographic projection of the second isolation part 62 on the substrate 1 overlaps with the orthographic projection of the first protective part 81 on the substrate 1.

[0145] At least a portion of the light-emitting unit 5 is located within the isolation opening 9. The light-emitting unit 5 includes a second electrode 4, which is electrically connected to the first isolation portion 61.

[0146] In related technologies, the second isolation portion 62 is prone to warping during the manufacturing process of the display panel. In this embodiment, a first protective portion 81 is provided between the second isolation portion 62 and the first isolation portion 61, and the hardness of the first protective portion 81 is greater than that of the second isolation portion 62. This increases the overall hardness of the second isolation portion 62 and the first protective portion 81, making it less likely for them to warp together during the manufacturing process of the display panel. This also reduces the likelihood of the etching solution reaching the light-emitting unit 5, thus preventing dark spots from forming in the light-emitting unit 5 and improving the display effect of the display panel.

[0147] Optionally, the isolation structure 6 further includes a second protective portion 82 disposed between the first isolation portion 61 and the first protective portion 81, wherein the adhesive strength of the second protective portion 82 is greater than that of the first protective portion 81. Thus, the second protective portion 82 can be more stably disposed on the side of the first isolation portion 61 away from the substrate 1, and the first protective portion 81 can be more stably disposed on the side of the second protective portion 82 away from the substrate 1, thereby improving the overall stability of the first protective portion 81, the second protective portion 82, and the second isolation portion 62 as a whole.

[0148] The remaining technical solutions of the display panel in this embodiment are the same as those in the above embodiments, and will not be repeated here.

[0149] For some possible implementations, please refer to Figure 9 This application also provides a method for manufacturing a display panel, the method comprising:

[0150] S10: Provide substrate 1.

[0151] S11: An isolation structure 6 and a protective layer 8 are formed on one side of the substrate 1. The isolation structure 6 encloses an isolation opening 9. The orthographic projection of the protective layer 8 on the substrate 1 at least partially overlaps with the orthographic projection of the isolation structure 6 on the substrate 1.

[0152] Please see Figure 10 A conductive layer 13 is formed on one side of the substrate 1, and the conductive layer 13 includes conductive traces 131.

[0153] Please see Figure 11 An insulating layer 14 is formed on the side of the conductive layer 13 away from the substrate 1. A via 141 is provided on the insulating layer 14 along the thickness direction Z of the substrate 1.

[0154] Please see Figure 12 A barrier layer is formed on the side of the insulating layer 14 away from the substrate 1. The barrier layer includes a barrier portion 15, which includes a conductive material. The barrier portion 15 extends into the via 141 and is electrically connected to the conductive trace 131.

[0155] Please see Figure 13 A first electrode layer is formed on the side of the barrier layer away from the substrate 1, and the first electrode layer includes a plurality of first electrodes 2 spaced apart.

[0156] Please see Figure 14 A pixel defining material layer 16, an isolation material layer 17, and a protective material layer 18 are sequentially formed on one side of the substrate 1.

[0157] Please see Figure 15The protective material layer 18, the isolation material layer 17 and the pixel defining material layer 16 are patterned sequentially to form the protective layer 8, the isolation structure 6 and the pixel defining layer 10, respectively.

[0158] S12: At least a portion of the light-emitting unit 5 is formed in the isolation opening 9 and a first encapsulation layer 7 is formed on the side of the light-emitting unit 5 away from the substrate 1. The first encapsulation layer 7 includes a plurality of encapsulation units 71 spaced apart. At least a portion of the encapsulation units 71 extend from the side of the isolation structure 6 toward the isolation opening 9 to the side of the protective layer 8 away from the substrate 1.

[0159] Please see again Figure 5 At least a portion of the light-emitting unit 5 is formed within the isolation opening 9, and a first encapsulation layer 7 is sequentially formed on the side of the light-emitting unit 5 away from the substrate 1.

[0160] By using the above method, a barrier layer is provided on the side of the first electrode 2 that is close to the substrate 1. The barrier layer can prevent water vapor in the film layer on the side of the first electrode 2 that is close to the substrate 1 from contacting the first electrode 2, thereby reducing the risk of dark spots in the light-emitting unit 5.

[0161] The above method can form the isolation structure 6 and the protective layer 8 in one step, thereby reducing the cost of forming the protective layer 8. The protective layer 8 can protect the isolation structure 6. During the manufacturing process of the display panel, the side of the isolation structure 6 away from the substrate 1 is less likely to warp, making it less likely for gaps to form between the encapsulation unit 71 and the isolation structure 6. The etching solution is less likely to damage the light-emitting unit 5, thereby making it less likely for the light-emitting unit 5 to produce dark spots, which can improve the display effect of the display panel.

[0162] In some possible implementations, this application also provides an electronic device that includes the display panel described in this application, or includes a display panel prepared by the method described in this application. This electronic device may include a device with image processing capabilities, such as a server, personal computer, laptop computer, etc. Because this electronic device includes the display panel described in this application, its display effect is better.

[0163] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0164] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A display panel, characterized in that, The display panel includes: Substrate; An isolation structure is located on one side of the substrate, and the isolation structure encloses an isolation opening; A protective layer is located on the side of the isolation structure away from the substrate, and the orthographic projection of the protective layer on the substrate at least partially overlaps with the orthographic projection of the isolation structure on the substrate; The light-emitting unit is at least partially located within the isolation opening; A first encapsulation layer is located on the side of the light-emitting unit away from the substrate. The first encapsulation layer includes a plurality of encapsulation units spaced apart, and at least a portion of the encapsulation units extend from the side of the isolation structure toward the isolation opening to the side of the protective layer away from the substrate.

2. The display panel according to claim 1, characterized in that, The isolation structure includes a first isolation portion and a second isolation portion stacked along a direction away from the substrate. The protective layer includes a first protective portion located on the side of the second isolation portion away from the substrate. The hardness of the first protective portion is greater than the hardness of the second isolation portion. The orthographic projection of the side of the first isolation portion away from the substrate onto the substrate lies within the orthographic projection of the second isolation portion onto the substrate. Preferably, the orthographic projection of the first protective portion on the substrate coincides with the orthographic projection of the second insulating portion on the substrate; Preferably, the protective layer encloses a protective opening, and the orthographic projection of the protective opening on the substrate coincides with the orthographic projection of the isolation opening on the substrate.

3. The display panel according to claim 2, characterized in that, The protective layer further includes a second protective portion located on the side of the first protective portion away from the substrate, wherein the adhesiveness of the second protective portion is greater than that of the first protective portion; Preferably, the second isolation part and the second protective part are made of the same material; Preferably, the material of the first protective part includes titanium nitride, and / or the material of the second protective part includes titanium; Preferably, the display panel further includes a second encapsulation layer located on the side of the first encapsulation layer away from the substrate, the second encapsulation layer being in contact with the side of the second protective portion away from the substrate.

4. The display panel according to claim 3, characterized in that, A receiving cavity is formed between the second protective part and the second isolation part, and the first protective part is located inside the receiving cavity.

5. The display panel according to claim 3, characterized in that, The orthographic projection of the second protective part on the substrate coincides with the orthographic projection of the first protective part on the substrate; Preferably, along the thickness direction of the substrate, the thickness of the first protective portion is greater than or equal to... and less than or equal to Preferably, along the thickness direction of the substrate, the thickness of the second protective portion is greater than or equal to... and less than or equal to 6. The display panel according to claim 2, characterized in that, The isolation structure further includes a third isolation portion located on the side of the first isolation portion facing the substrate, and the light-emitting unit includes a second electrode, which is electrically connected to the third isolation portion and / or the first isolation portion; Preferably, the material of the third isolation portion includes molybdenum; and / or, the material of the first isolation portion includes aluminum; and / or, the material of the second isolation portion includes titanium.

7. The display panel according to any one of claims 1-6, characterized in that, The light-emitting unit includes a first electrode, and the display panel further includes a barrier layer located between the first electrode and the substrate. The barrier layer includes a barrier portion, and the orthographic projection of the barrier portion on the substrate at least partially overlaps with the orthographic projection of the first electrode on the substrate. Preferably, the barrier portion includes a water-resistant material.

8. The display panel according to claim 7, characterized in that... The barrier layer includes a plurality of barrier portions spaced apart; Preferably, the orthographic projection of the first electrode on the substrate is located within the orthographic projection of the blocking portion on the substrate.

9. The display panel according to claim 7, characterized in that, The display panel also includes: A conductive layer is located on one side of the substrate, and the conductive layer includes conductive traces; An insulating layer is located between the conductive layer and the barrier layer. Along the thickness direction of the substrate, the insulating layer has a via that penetrates the insulating layer. The barrier portion includes a conductive material, extends into the via, and is electrically connected to the conductive trace. The first electrode is electrically connected to the barrier portion. Preferably, the blocking portion includes a second blocking sub-portion, which is made of a conductive material and a water-resistant material.

10. The display panel according to claim 7, characterized in that, The blocking portion includes a first blocking sub-portion, a second blocking sub-portion, and a third blocking sub-portion stacked sequentially in a direction away from the substrate; the second blocking sub-portion is a conductive material and a water-resistant material, the first blocking sub-portion and the second blocking sub-portion are both conductive materials, and the adhesion of the first blocking sub-portion and the third blocking sub-portion is greater than that of the second blocking sub-portion; Preferably, along the thickness direction of the substrate, the thickness of the first blocking portion is greater than or equal to... and less than or equal to Preferably, along the thickness direction of the substrate, the thickness of the second blocking portion is greater than or equal to... and less than or equal to Preferably, along the thickness direction of the substrate, the thickness of the third blocking portion is greater than or equal to... and less than or equal to Preferably, the material of the first blocking sub-part includes titanium; and / or, the material of the second blocking sub-part includes titanium nitride; and / or, the material of the third blocking sub-part includes titanium.

11. A display panel, characterized in that, The display panel includes: Substrate; A conductive layer is located on one side of the substrate, and the conductive layer includes conductive traces; An insulating layer is located on the side of the conductive layer away from the substrate, and a through-hole is provided on the insulating layer along the thickness direction of the substrate; A barrier layer is located on the side of the insulating layer away from the substrate, and the barrier layer includes a barrier portion; A light-emitting unit is located on the side of the barrier layer away from the substrate. The light-emitting unit includes a first electrode. The orthographic projection of the barrier portion on the substrate at least partially overlaps with the orthographic projection of the first electrode on the substrate. The barrier portion includes a conductive material and a water-resistant material. The barrier portion extends into the via and is electrically connected to the conductive trace. The first electrode is electrically connected to the barrier portion.

12. The display panel according to claim 11, characterized in that, The blocking portion includes a first blocking sub-port, a second blocking sub-port, and a third blocking sub-port, which are sequentially stacked along a direction away from the substrate. Preferably, along the thickness direction of the substrate, the thickness of the first blocking portion is greater than or equal to... and less than or equal to Preferably, along the thickness direction of the substrate, the thickness of the second blocking portion is greater than or equal to... and less than or equal to Preferably, along the thickness direction of the substrate, the thickness of the third blocking portion is greater than or equal to... and less than or equal to Preferably, the material of the first blocking sub-part includes titanium; and / or, the material of the second blocking sub-part includes titanium nitride; and / or, the material of the third blocking sub-part includes titanium.

13. A display panel, characterized in that, The display panel includes: Substrate; An isolation structure is located on one side of the substrate, and the isolation structure encloses and forms an isolation opening. The isolation structure includes a first isolation portion, a first protective portion, and a second isolation portion stacked sequentially in a direction away from the substrate. The hardness of the first protective portion is greater than the hardness of the second isolation portion. The orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the first protective portion on the substrate. The orthographic projection of the second isolation portion on the substrate overlaps with the orthographic projection of the first protective portion on the substrate. The light-emitting unit is at least partially located within the isolation opening, and the light-emitting unit includes a second electrode that is electrically connected to the first isolation portion.

14. The display panel according to claim 13, characterized in that, The isolation structure further includes a second protective part disposed between the first isolation part and the first protective part, wherein the adhesive strength of the second protective part is greater than that of the first protective part; Preferably, the material of the first protective part includes titanium nitride, and / or the material of the second protective part includes titanium, and / or the material of the first isolation part includes aluminum; and / or the material of the second isolation part includes titanium.

15. An electronic device, characterized in that, The electronic device includes the display panel as described in any one of claims 1-14.

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