Array substrate, display panel and display device

Abstract

This application relates to the field of display device technology, providing an array substrate, a display panel, and a display device. The array substrate includes a substrate and an isolation structure. The isolation structure is disposed on one side of the substrate, enclosing an isolation opening. The isolation structure includes a stacked isolation body and a blocking portion. The blocking portion is located on the side of the isolation body away from the substrate. The orthographic projection of the isolation body on the substrate lies within the orthographic projection of the blocking portion on the substrate. The isolation body and the blocking portion satisfy the following relationship: h1 / L1≥0.1, wherein, along the direction perpendicular to the substrate surface, the size of the blocking portion is h1; along the direction parallel to the contact surface between the blocking portion and the isolation body, the size of the blocking portion protruding from the isolation body is L1. In this application, the isolation body and blocking portion structure has stronger stability, effectively preventing deformation of the blocking portion in subsequent processing steps, making the structure of the isolation opening enclosed by the isolation structure more stable, and preventing the display effect from being affected by film layer deformation.

Description

Technical Field

[0001] This application belongs to the field of display device technology, and in particular relates to an array substrate, a display panel and a display device. Background Technology

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

[0003] In the manufacturing process of display panels using related technologies, there is a problem that the film layer is prone to deformation, which affects subsequent processing steps and even the display effect of the display panel. Summary of the Invention

[0004] In view of this, embodiments of this application provide an array substrate, a display panel, and a display device to solve the problem that the film layer in current display panels is prone to deformation, affecting subsequent processing and even the display effect of the display panel.

[0005] A first aspect of this application provides an array substrate, comprising: a substrate; and an isolation structure disposed on one side of the substrate, the isolation structure enclosing an isolation opening, the isolation structure comprising an isolation body and a blocking portion stacked together, the blocking portion being located 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 blocking portion on the substrate, the isolation body and the blocking portion satisfying the following relationship: h1 / L1≥0.1, wherein, along a direction perpendicular to the surface of the substrate, the size of the blocking portion is h1; and on the contact surface between the blocking portion and the isolation body, the size of the blocking portion protruding from the isolation body is L1.

[0006] The array substrate described above, by ensuring that the isolator and the blocking part in the isolation structure satisfy the above relationship, results in a relatively thick blocking part and a relatively short length of the blocking part protruding from the isolator. This strengthens the structural stability of the isolator and the blocking part, effectively preventing deformation of the blocking part in subsequent processing steps. This makes the structure of the isolation opening enclosed by the isolation structure more stable, preventing the display effect from being affected by film deformation.

[0007] In one embodiment, the isolator and the blocking portion satisfy the following relationship: h1 / L1≤2; and / or, on the contact surface between the blocking portion and the isolator, the blocking portion protrudes from the isolator by a dimension L1≤1μm. This arrangement facilitates the fabrication of the isolation structure while ensuring the structural stability of the isolator and the blocking portion.

[0008] In one embodiment, the dimension h1 of the blocking portion is ≥ 0.1 μm in a direction perpendicular to the substrate surface; preferably, the dimension h1 of the blocking portion is ≤ 0.5 μm. Thus, the thickness of the blocking portion is set within a reasonable range, which can prevent deformation of the blocking portion in subsequent processing steps and facilitates manufacturing.

[0009] In one embodiment, the isolation structure further includes a base located on the side of the isolator closer to the substrate, wherein the orthographic projection of the isolator on the substrate lies within the orthographic projection of the base on the substrate. This design further enhances the isolation performance of the isolation structure.

[0010] In one embodiment, the size of the blocking portion decreases along the direction from the insulator to the blocking portion. By arranging the blocking portion in the above shape, subsequent film processing and fabrication are facilitated.

[0011] In one embodiment, the blocking portion includes a top surface, a bottom surface, and a side wall surface. The top surface and the bottom surface are opposite to each other and spaced apart. The side wall surface connects the top surface and the bottom surface. The orthographic projection of the top surface on the substrate lies within the orthographic projection of the bottom surface on the substrate. The blocking portion satisfies the following relationship: 70° ≤ α ≤ 90°, where the included angle between the bottom surface and the side wall surface is α. By setting the included angle α between the bottom surface and the side wall surface of the blocking portion to satisfy the above range, the ratio of the length to the thickness of the blocking portion can be reasonably controlled, ensuring that both its length and thickness are within a reasonable range.

[0012] In one embodiment, the array substrate further includes a pixel defining layer disposed on the side of the isolation structure near the substrate. The pixel defining layer defines a plurality of pixel openings spaced apart from each other, the pixel openings communicating with the isolation openings, and the light-emitting units corresponding to the pixel openings. By providing the pixel defining layer, it is easier to set up the light-emitting units and avoid signal crosstalk between adjacent light-emitting units.

[0013] In one embodiment, the distance L2 between the edge of the orthographic projection of the pixel defining layer on the substrate and the edge of the orthographic projection of the blocking portion on the substrate is ≥ 1 μm. By setting the edges of the orthographic projections of the pixel defining layer and the blocking portion on the substrate to satisfy the above conditions, the pixel defining layer and the isolation structure have a certain hierarchy in the direction parallel to the substrate surface, which can improve the overall structural strength of the array substrate.

[0014] In one embodiment, the isolation structure and the pixel defining layer satisfy the following relationship: h2 ≥ 1 μm, wherein, along a direction perpendicular to the substrate surface, the distance between the surface of the pixel defining layer near the substrate and the bottom surface of the blocking portion is h2. This configuration results in a relatively large distance between the pixel defining layer and the blocking portion, which is beneficial for improving the structural stability of the isolation structure.

[0015] In one embodiment, the blocking portion includes a main body and a protruding portion. The main body is disposed on the side of the isolator away from the substrate, and the protruding portion protrudes from the isolator relative to the main body in a direction close to the isolation opening. The distance between the main body and the substrate is equal to the distance between the protruding portion and the substrate. This arrangement, where the main body and the protruding portion of the blocking portion are positioned on a plane equidistant from the substrate, results in a flatter structure and stronger overall integrity of the blocking portion, thus improving its structural strength.

[0016] A second aspect of this application provides an array substrate, comprising: a substrate; an isolation structure disposed on one side of the substrate, the isolation structure enclosing an isolation opening, the isolation structure comprising an isolation body and a blocking portion stacked together, the blocking portion being located 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 blocking portion on the substrate; wherein, along a direction perpendicular to the surface of the substrate, the size h1 of the blocking portion is ≥ 0.1 μm.

[0017] The array substrate described above, by having the blocking portion in the isolation structure satisfy the above relationship, has a relatively thick blocking portion, and the blocking portion structure is more stable. This can effectively prevent the blocking portion from deforming in subsequent processing steps, making the structure of the isolation opening enclosed by the isolation structure more stable, so that the display effect is not affected by the deformation of the film layer.

[0018] In one embodiment, the dimension h1 of the blocking portion is ≤0.5μm in a direction perpendicular to the substrate surface. This ensures that the thickness of the blocking portion is within a reasonable range, preventing deformation during subsequent processing and facilitating fabrication.

[0019] In one embodiment, the isolator and the blocking portion satisfy the following relationship: h1 / L1≥0.1, wherein the distance between the edge of the blocking portion near the isolator's surface projected onto the substrate and the edge of the isolator's surface near the blocking portion projected onto the substrate is L1. This configuration results in a relatively thick blocking portion with a relatively short protrusion from the isolator, leading to stronger structural stability of the isolator and blocking portion and effectively preventing deformation of the blocking portion during subsequent processing steps.

[0020] A third aspect of this application provides a display panel, including: an array substrate and a light-emitting layer as described above, wherein the light-emitting layer is disposed on one side of the array substrate, and the light-emitting layer includes a plurality of light-emitting units spaced apart from each other, wherein the light-emitting units are correspondingly disposed with respect to the isolation opening.

[0021] The aforementioned display panel, by ensuring that the isolator and the blocking portion in the isolation structure of the array substrate satisfy the above relationship, can effectively prevent the blocking portion from deforming in subsequent processing steps, making the structure of the isolation opening enclosed by the isolation structure more stable, facilitating the fabrication of the light-emitting unit, and preventing the display effect from being affected by film deformation.

[0022] In one embodiment, the light-emitting layer includes a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit; in the isolation structure located on one side of the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit, the values ​​of h1 / L1 are different for each. This design allows for setting the h1 / L1 values ​​in the isolation structure separately for the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit, thus enhancing applicability.

[0023] In one embodiment, the light-emitting unit includes a first electrode, a light-emitting portion, and a second electrode stacked sequentially, with at least a portion of the first electrode exposed through the pixel opening; the orthographic projection of the first electrode on the substrate at least partially overlaps with the orthographic projection of the isolator on the substrate. This design, where the first electrode of the light-emitting unit extends to a position below the isolator, improves the tightness of the connection between the light-emitting units.

[0024] In one embodiment, the display panel further includes an encapsulation layer disposed on the side of the light-emitting layer opposite to the substrate. The encapsulation layer includes a plurality of encapsulation units, each corresponding to at least one of the light-emitting units. By providing the encapsulation layer, the encapsulation units can effectively encapsulate the isolation openings, improving their resistance to moisture. This prevents moisture from penetrating the encapsulation layer and invading the interior of the display panel, thus avoiding encapsulation failure and preventing dark spots from appearing inside the display panel, thereby improving the display effect of the display panel.

[0025] In one embodiment, the encapsulation unit includes a body portion and an extension portion connected to each other. The body portion covers the surface of the light-emitting unit opposite to the substrate, and the extension portion extends at least partially to the surface of the blocking portion opposite to the substrate. The orthographic projection of the extension portion on the substrate at least partially overlaps with the orthographic projection of the isolator on the substrate. Thus, the body portion of the encapsulation unit can encapsulate the light-emitting unit, and the extension portion of the encapsulation unit can encapsulate the gap between the light-emitting unit and the isolator structure, improving the encapsulation tightness of the encapsulation unit.

[0026] In one embodiment, the orthographic projection of the first electrode on the substrate lies within the orthographic projection of the encapsulation unit on the substrate. This arrangement ensures that the first electrode of the light-emitting unit is completely covered by the encapsulation unit, preventing moisture from entering the light-emitting unit.

[0027] In one embodiment, the display panel further includes a protective layer disposed on the side of the blocking portion facing away from the substrate. By providing a protective layer on the side of the blocking portion facing away from the substrate, the blocking portion can be pressed tightly, further preventing deformation of the blocking portion.

[0028] A fourth aspect of this application provides a display device, including a display panel as described above.

[0029] It is understandable that the beneficial effects of the fourth aspect mentioned above can be found in the relevant descriptions of the first to third aspects mentioned above, and will not be repeated here. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a top view of the overall structure of a display panel provided in one embodiment of this application;

[0032] Figure 2 This application provides a display panel along one embodiment. Figure 1 Cross-sectional view of the structure after being cut at point kk;

[0033] Figure 3 This application provides a display panel in one embodiment. Figure 2 A magnified view of a portion of point A in the middle;

[0034] Figure 4 This is an enlarged schematic diagram of the blocking portion of the isolation structure in a display panel according to an embodiment of this application;

[0035] Figure 5 Another embodiment of this application provides a display panel along... Figure 1 Cross-sectional view of the structure after being cut at point kk;

[0036] Figure 6 This is a schematic diagram of the overall structure of a display device provided in one embodiment of this application.

[0037] Icon labels:

[0038] 10. Display device;

[0039] 100. Display panel;

[0040] 110. Substrate;

[0041] 120. Isolation structure; 121. Isolation opening; 122. Isolation body; 123. Blocking part; 1231. Top surface; 1232. Bottom surface; 1233. Side wall surface; 124. Base.

[0042] 130, Light-emitting layer; 131, Light-emitting unit; 1311, First electrode; 1312, Light-emitting part; 1313, Second electrode; 131A, First light-emitting unit; 131B, Second light-emitting unit; 131C, Third light-emitting unit.

[0043] 140. Pixel limiting layer; 141. Pixel opening;

[0044] 150. Encapsulation layer; 151. Encapsulation unit; 1511. Body part; 1512. Extension part. Detailed Implementation

[0045] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0046] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0047] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0048] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0049] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0050] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. "A plurality" means two or more.

[0051] To at least partially resolve the technical problems in the relevant technologies, see [link to relevant documentation]. Figure 1 and Figure 2 As shown, this application embodiment provides an array substrate, which includes a substrate 110 and an isolation structure 120.

[0052] The substrate 110 is used to support and carry other film layers in the array substrate. For example, the substrate 110 can be made of materials such as glass or polyimide.

[0053] An isolation structure 120 is disposed on one side of the substrate 110. The isolation structure 120 surrounds an isolation opening 121, which is capable of accommodating at least part of the light-emitting unit, so that the light-emitting unit can be formed without the aid of a mask. In the light-emitting layer, the isolation structure 120 may be provided between a portion of two adjacent light-emitting units, or an isolation structure 120 may be provided between every two adjacent light-emitting units. The specific structural form of the isolation structure 120 is not limited, as long as it can effectively separate two light-emitting units.

[0054] The composition and preparation of the isolation structure 120 are further described in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, and PCT / CN2024 / 099072 for reference.

[0055] Specifically, the isolation structure 120 includes an isolation body 122 and a blocking portion 123 stacked together. The blocking portion 123 is located on the side of the isolation body 122 away from the substrate 110, and the orthographic projection of the isolation body 122 on the substrate 110 is located within the orthographic projection of the blocking portion 123 on the substrate 110.

[0056] In other words, the isolation structure 120 includes a relatively independent isolator 122 and a blocking portion 123. The isolator 122 is located on the substrate 110, and the blocking portion 123 is stacked on the isolator 122. The area covered by the orthographic projection of the blocking portion 123 on the substrate 110 is relatively large, while the area covered by the orthographic projection of the isolator 122 on the substrate 110 is relatively small, so that the orthographic projection of the blocking portion 123 on the substrate 110 can cover the orthographic projection of the isolator 122 on the substrate 110. The cross-sectional shapes of the isolator 122 and the blocking portion 123 can be regular shapes, such as rectangles or triangles, or they can be irregular shapes.

[0057] To prevent deformation of the blocking portion 123 during manufacturing, the isolator 122 and the blocking portion 123 satisfy the following relationship: h1 / L1≥0.1, where the dimension of the blocking portion 123 is h1 along the direction perpendicular to the surface of the substrate 110; and the dimension of the blocking portion 123 protruding from the isolator 122 along the direction parallel to the contact surface between the blocking portion 123 and the isolator 122 is L1. This can be understood as h1 being the thickness of the blocking portion 123 and L1 being the length of the isolator 122.

[0058] In addition to the portion connected to the isolator 122, the blocking portion 123 also has a portion protruding beyond the isolator 122 on the contact surface between the blocking portion 123 and the isolator 122. The length of the portion of the blocking portion 123 protruding beyond the isolator 122 is L1. Let h1 / L1≥0.1, meaning the blocking portion 123 is relatively thick, and the length of the blocking portion 123 protruding beyond the isolator 122 is relatively short. This results in stronger structural stability for both the isolator 122 and the blocking portion 123, effectively preventing deformation of the blocking portion 123 during subsequent processing steps.

[0059] In some specific embodiments, the ratio between the thickness h1 of the blocking portion 123 and the length L1 of the blocking portion 123 protruding from the isolator 122 can be 0.2, 0.25, 0.3, 0.36, 0.45, etc. The above are only examples of the ratio between the thickness h1 of the blocking portion 123 and the length L1 of the blocking portion 123 protruding from the isolator 122. In actual embodiments, the ratio between the thickness h1 of the blocking portion 123 and the length L1 of the blocking portion 123 protruding from the isolator 122 can also be other values ​​that satisfy the above range.

[0060] The array substrate of this application embodiment satisfies the above relationship between the isolator 122 and the blocking portion 123 in the isolation structure 120. Thus, the thickness of the blocking portion 123 is relatively thick, and the length of the blocking portion 123 protruding from the isolator 122 is relatively short. The structure of the isolator 122 and the blocking portion 123 is more stable, which can effectively prevent the blocking portion 123 from deforming in subsequent processing steps. This makes the structure of the isolation opening 121 enclosed by the isolation structure 120 more stable, so that the display effect is not affected by the deformation of the film layer.

[0061] It should be noted that the array substrate also includes pixel circuits for controlling the required light-emitting units to emit light at the correct time, and may also include driving circuits for driving the light-emitting units to emit light, etc.

[0062] Based on the above embodiments, in order to facilitate the processing and manufacturing of the isolator 122 and the blocking part 123, in some embodiments, the isolator 122 and the blocking part 123 may optionally satisfy the following relationship: h1 / L1≤2.

[0063] In some specific embodiments, the ratio between the thickness h1 of the blocking portion 123 and the length L1 of the blocking portion 123 protruding from the isolator 122 can be 0.5, 0.8, 1, 1.1, 1.2, 1.5, 1.7, 1.9, 2, etc. These are merely examples of the ratio between the thickness h1 of the blocking portion 123 and the length L1 of the blocking portion 123 protruding from the isolator 122. In actual embodiments, the ratio between the thickness h1 of the blocking portion 123 and the length L1 of the blocking portion 123 protruding from the isolator 122 can also be other values ​​within the above range. This configuration, while ensuring the structural stability of the isolator 122 and the blocking portion 123, facilitates the fabrication of the array substrate and the display panel 100.

[0064] In addition, in some other embodiments, the isolator 122 and the blocking portion 123 also satisfy the following relationship: on the contact surface between the blocking portion 123 and the isolator 122, the length L1 of the blocking portion 123 protruding from the isolator 122 is ≤ 1 μm. In some specific embodiments, the length L1 of the blocking portion 123 protruding from the isolator 122 can be 0.2 μm, 0.25 μm, 0.3 μm, 0.45 μm, 0.5 μm, 0.75 μm, 0.9 μm, 1 μm, etc. The above are only examples of the length L1 of the blocking portion 123 protruding from the isolator 122. In actual embodiments, the length L1 of the blocking portion 123 protruding from the isolator 122 can also be other dimensions that satisfy the above range. With this setting, the length L1 of the blocking portion 123 protruding from the isolator 122 is not too large, which facilitates the processing and manufacturing of the isolator structure 120 while satisfying the normal function of the isolator structure 120.

[0065] Based on the fact that the ratio between the thickness h1 of the blocking portion 123 and the length L1 of the blocking portion 123 protruding from the isolator 122 satisfies the above range, the thickness h1 of the blocking portion 123 can be reasonably set within this range. For example, in some embodiments, optionally, the thickness h1 of the blocking portion 123 is ≥0.1μm along the direction perpendicular to the surface of the substrate 110. In some specific embodiments, the thickness h1 of the blocking portion 123 can be 0.1μm, 0.25μm, 0.3μm, 0.45μm, 0.5μm, 0.75μm, 0.9μm, 1μm, etc. The above are only examples of the thickness h1 of the blocking portion 123. In actual embodiments, the thickness h1 of the blocking portion 123 can also be other dimensions that satisfy the above range.

[0066] Furthermore, in some other embodiments, the thickness h1 of the blocking portion 123 may optionally be ≤0.5μm. This ensures that the thickness of the blocking portion 123 is within a reasonable range, preventing deformation of the blocking portion 123 during subsequent processing steps and facilitating its fabrication.

[0067] The specific structural form of the isolation structure 120 is not limited, such as Figure 3 As shown, in some embodiments, the isolation structure 120 may optionally include a base 124 located on the side of the isolation body 122 close to the substrate 110, and the orthographic projection of the isolation body 122 on the substrate 110 is located within the orthographic projection of the base 124 on the substrate 110.

[0068] That is, the area covered by the orthogonal projection of the base 124 on the substrate 110 is relatively large, while the area covered by the orthogonal projection of the isolator 122 on the substrate 110 is relatively small. This allows the orthogonal projection of the base 124 on the substrate 110 to cover the orthogonal projection of the isolator 122 on the substrate 110. In this way, the base 124, the isolator 122, and the blocking portion 123 can form an undercut structure, which is beneficial for the light-emitting unit to contact the sidewall of the isolation structure 120, improves the adhesion between the light-emitting unit and the isolation structure 120, and also facilitates the processing and molding of the isolation structure 120. This design can further improve the isolation performance of the isolation structure 120.

[0069] In some embodiments, optionally, the size of the blocking portion 123 decreases along the direction from the isolator 122 to the blocking portion 123.

[0070] Specifically, the size of the blocking portion 123 is relatively larger on the side closer to the isolator 122, and relatively smaller on the side farther from the isolator 122. Along the direction from the isolator 122 to the blocking portion 123, the size of the blocking portion 123 is smaller at the top and larger at the bottom. By setting the blocking portion 123 to this shape, subsequent film processing is facilitated. Figure 3 In the illustrated embodiment, the cross-sectional shape of the blocking portion 123 can be trapezoidal, and the cross-sectional shape of the isolator 122 can also be trapezoidal. This design facilitates the processing and forming of the isolation structure 120.

[0071] Please combine Figure 3 And see Figure 4 In some embodiments, the blocking portion 123 optionally includes a top surface 1231, a bottom surface 1232, and a side wall surface 1233. The top surface 1231 and the bottom surface 1232 are opposite to each other and spaced apart. The side wall surface 1233 is connected to the top surface 1231 and the bottom surface 1232. The orthographic projection of the top surface 1231 on the substrate 110 is located within the orthographic projection of the bottom surface 1232 on the substrate 110. The blocking portion 123 satisfies the following relationship: 70°≤α≤90°, wherein the included angle between the bottom surface 1232 and the side wall surface 1233 is α.

[0072] When the two sidewalls 1233 of the blocking part 123 are symmetrically arranged with respect to the bottom surface 1232 and the top surface 1231, the included angle α between the bottom surface 1232 and the two sidewalls 1233 satisfies the above conditions. When the two sidewalls 1233 of the blocking part 123 are not symmetrically arranged with respect to the bottom surface 1232 and the top surface 1231, the included angle α between the bottom surface 1232 and at least one of the sidewalls 1233 satisfies the above conditions. In some specific embodiments, the included angle α between the bottom surface 1232 and the sidewalls 1233 of the blocking part 123 can be 70°, 72°, 75°, 80°, 85°, etc. The above are only examples of the included angle α between the bottom surface 1232 and the sidewalls 1233 of the blocking part 123. In actual embodiments, the included angle α between the bottom surface 1232 and the sidewalls 1233 of the blocking part 123 can also be other dimensions that satisfy the above range. By setting the included angle α between the bottom surface 1232 and the side wall surface 1233 of the blocking part 123 to meet the above range, the ratio of the length and thickness of the blocking part 123 can be reasonably controlled so that both its length and thickness are within a reasonable range.

[0073] To further avoid signal crosstalk between adjacent light-emitting units, in some embodiments, the array substrate optionally includes a pixel defining layer 140. The pixel defining layer 140 is disposed on the side of the isolation structure 120 near the substrate 110. The pixel defining layer 140 defines a plurality of pixel openings 141 that are spaced apart from each other. The pixel openings 141 communicate with the isolation openings 121, and the light-emitting units are correspondingly disposed with respect to the pixel openings 141. By providing the pixel defining layer 140, it is convenient to set up the light-emitting units and avoid signal crosstalk between adjacent light-emitting units.

[0074] In some embodiments, optionally, the distance L2 between the edge of the orthogonal projection of the pixel defining layer 140 on the substrate 110 and the edge of the orthogonal projection of the blocking portion 123 on the substrate 110 is ≥1μm.

[0075] like Figure 2 As shown, the area covered by the orthogonal projection of the pixel limiting layer 140 on the substrate 110 is relatively large, while the area covered by the orthogonal projection of the blocking portion 123 on the substrate 110 is relatively small, so that the orthogonal projection of the pixel limiting layer 140 on the substrate 110 can cover the orthogonal projection of the blocking portion 123 on the substrate 110, and the shortest distance between the edge of the orthogonal projection of the pixel limiting layer 140 on the substrate 110 and the edge of the orthogonal projection of the blocking portion 123 on the substrate 110 is L2.

[0076] In some specific embodiments, the distance L2 between the edge of the orthographic projection of the pixel limiting layer 140 on the substrate 110 and the edge of the orthographic projection of the blocking portion 123 on the substrate 110 can be 1μm, 1.5μm, 1.8μm, 2μm, 3μm, 5μm, etc. These are merely examples of the distance L2 between the edges of the orthographic projections of the pixel limiting layer 140 and the blocking portion 123 on the substrate 110. In actual embodiments, the distance L2 between the edges of the orthographic projections of the pixel limiting layer 140 and the blocking portion 123 on the substrate 110 can also be other dimensions within the above range. By setting the edges of the orthographic projections of the pixel limiting layer 140 and the blocking portion 123 on the substrate 110 to satisfy the above conditions, the pixel limiting layer 140 and the isolation structure 120 have a certain degree of hierarchy in the direction parallel to the surface of the substrate 110, which can improve the overall structural strength of the array substrate.

[0077] In some embodiments, optionally, the isolation structure 120 and the pixel defining layer 140 satisfy the following relationship: h2≥1μm, wherein, along the direction perpendicular to the surface of the substrate 110, the distance between the surface of the pixel defining layer 140 near the substrate 110 and the bottom surface 1232 of the blocking portion 123 is h2.

[0078] In some specific embodiments, the distance h2 between the surface of the pixel limiting layer 140 near the substrate 110 and the bottom surface 1232 of the blocking portion 123 can be 1μm, 1.5μm, 1.8μm, 2μm, 3μm, 5μm, etc. These are merely examples of the distance h2 between the surface of the pixel limiting layer 140 near the substrate 110 and the bottom surface 1232 of the blocking portion 123. In actual embodiments, the distance h2 between the surface of the pixel limiting layer 140 near the substrate 110 and the bottom surface 1232 of the blocking portion 123 can also be other dimensions within the above range. This arrangement results in a relatively large distance between the pixel limiting layer 140 and the blocking portion 123, which is beneficial for improving the structural stability of the isolation structure 120.

[0079] As described above, in addition to the portion connected to the isolator 122, the blocking portion 123 also has a portion protruding beyond the isolator 122 on the contact surface between the blocking portion 123 and the isolator 122. In some embodiments, the blocking portion 123 may optionally include a main body portion and a protruding portion. The main body portion is disposed on the side of the isolator 122 away from the substrate 110, and the protruding portion protrudes from the isolator 122 relative to the main body portion in a direction close to the isolation opening 121. The distance between the main body portion and the substrate 110 is equal to the distance between the protruding portion and the substrate 110.

[0080] The part of the blocking part 123 that is connected to the isolator 122 is the main body, and the part of the blocking part 123 that protrudes beyond the isolator 122 on the contact surface between the blocking part 123 and the isolator 122 is the protrusion. With this arrangement, the main body and the protrusion of the blocking part 123 are set on a plane that is equidistant from the substrate 110. The structure of the blocking part 123 is flatter and the overall integrity is stronger, which is beneficial to improving the structural strength of the blocking part 123.

[0081] Please continue reading Figure 1 and Figure 2 As shown, based on the same inventive concept, this application embodiment also provides an array substrate, which includes a substrate 110 and an isolation structure 120.

[0082] An isolation structure 120 is disposed on one side of the substrate 110. The isolation structure 120 surrounds an isolation opening 121. The isolation structure 120 includes an isolation body 122 and a blocking portion 123 stacked together. The blocking portion 123 is located on the side of the isolation body 122 away from the substrate 110. The orthographic projection of the isolation body 122 on the substrate 110 is located within the orthographic projection of the blocking portion 123 on the substrate 110. The size h1 of the blocking portion 123 is ≥ 0.1 μm along the direction perpendicular to the surface of the substrate 110.

[0083] The functions, structures, and relative positions of the substrate 110 and the isolation structure 120 are described in the above embodiments and will not be repeated here. In some specific embodiments, the thickness h1 of the blocking portion 123 can be 0.1μm, 0.25μm, 0.3μm, 0.45μm, 0.5μm, 0.75μm, 0.9μm, 1μm, etc. The above are only examples of the thickness h1 of the blocking portion 123. In actual embodiments, the thickness h1 of the blocking portion 123 can also be other dimensions that satisfy the above range.

[0084] The array substrate of this application embodiment satisfies the above relationship by making the blocking portion 123 in the isolation structure 120 satisfy the above relationship. Thus, the thickness of the blocking portion 123 is relatively thick, the structural stability of the blocking portion 123 is stronger, and it can effectively avoid the deformation of the blocking portion 123 in subsequent processing steps, so that the structure of the isolation opening 121 enclosed by the isolation structure 120 is more stable and the display effect is not affected by the deformation of the film layer.

[0085] Furthermore, in some other embodiments, optionally, the dimension h1 of the blocking portion 123 is ≤0.5μm in the direction perpendicular to the surface of the substrate 110. In this way, the thickness of the blocking portion 123 is set within a reasonable range, which can prevent the blocking portion 123 from deforming in subsequent processing steps, and at the same time facilitates processing and manufacturing.

[0086] Based on the fact that the thickness h1 of the blocking part 123 meets the above range, the ratio between the thickness h1 of the blocking part 123 and the length L1 of the blocking part 123 protruding from the isolator 122 can be reasonably set within this range. For example, in some embodiments, the isolator 122 and the blocking part 123 may optionally satisfy the following relationship: h1 / L1≥0.1, wherein the distance between the edge of the blocking part 123 near the surface of the isolator 122 on the substrate 110 and the edge of the surface of the isolator 122 near the blocking part 123 on the substrate 110 is L1.

[0087] In some specific embodiments, the ratio between the thickness h1 of the blocking portion 123 and the length L1 of the blocking portion 123 protruding from the isolator 122 can be 0.2, 0.25, 0.3, 0.36, 0.45, etc. These are merely examples of the ratio between the thickness h1 of the blocking portion 123 and the length L1 of the blocking portion 123 protruding from the isolator 122. In actual embodiments, the ratio between the thickness h1 of the blocking portion 123 and the length L1 of the blocking portion 123 protruding from the isolator 122 can also be other values ​​within the above range. With this configuration, the blocking portion 123 has a relatively thicker thickness, while the length of the blocking portion 123 protruding from the isolator 122 is relatively shorter. This results in stronger structural stability of the isolator 122 and the blocking portion 123, effectively preventing deformation of the blocking portion 123 during subsequent processing steps.

[0088] This application embodiment also provides a display panel 100, which includes an array substrate and a light-emitting layer 130 as in any of the above embodiments. The light-emitting layer 130 is disposed on one side of the array substrate and includes a plurality of light-emitting units 131 arranged at intervals from each other. The light-emitting units 131 are correspondingly disposed with the isolation openings 121.

[0089] The light-emitting unit 131 in the light-emitting layer 130 can be a red light-emitting unit 131 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 types of light-emitting units 131, the arrangement of multiple light-emitting units 131, and the spacing between two adjacent light-emitting units 131 can be flexibly set and are not limited here. The light-emitting unit 131 can emit light under the driving action of the driving circuit. Specifically, the light-emitting material in the light-emitting unit 131 can emit light under the action of an electric field. The light-emitting unit 131 can include a first electrode 1311, a light-emitting part 1312, and a second electrode 1313. An electric field can be generated under the action of the first electrode 1311 and the second electrode 1313, so that the light-emitting part 1312 can emit light under the driving of the electric field.

[0090] The display panel 100 of this application embodiment satisfies the above relationship between the isolator 122 and the blocking part 123 in the isolation structure 120 of the array substrate. In this way, the blocking part 123 can be effectively prevented from deforming in subsequent processing steps, making the structure of the isolation opening 121 enclosed by the isolation structure 120 more stable, which facilitates the fabrication of the light-emitting unit 131 and prevents the display effect from being affected by film deformation.

[0091] In some embodiments, the light-emitting layer 130 may optionally include a first light-emitting unit 131A, a second light-emitting unit 131B, and a third light-emitting unit 131C; in the isolation structure 120 located on one side of the first light-emitting unit 131A, the second light-emitting unit 131B, and the third light-emitting unit 131C, the values ​​of h1 / L1 are different from each other.

[0092] In other words, the value of h1 / L1 in the isolation structure 120 located on the side of the first light-emitting unit 131A is different from the value of h1 / L1 in the isolation structure 120 located on the side of the second light-emitting unit 131B, and also different from the value of h1 / L1 in the isolation structure 120 located on the side of the third light-emitting unit 131C. With this design, the value of h1 / L1 in the isolation structure 120 is set separately for the first light-emitting unit 131A, the second light-emitting unit 131B, and the third light-emitting unit 131C, which makes it more applicable.

[0093] In some embodiments, the light-emitting unit 131 may optionally include a first electrode 1311, a light-emitting portion 1312, and a second electrode 1313 stacked sequentially, with at least a portion of the first electrode 1311 exposed through the pixel opening 141; the orthographic projection of the first electrode 1311 on the substrate 110 at least partially overlaps with the orthographic projection of the isolator 122 on the substrate 110.

[0094] like Figure 2 As shown, part of the structure in the first electrode 1311 is exposed through the pixel opening 141, while another part of the structure can extend into the pixel limiting layer 140 to the bottom of the insulator 122. This design, where the first electrode 1311 of the light-emitting unit 131 extends to the position below the insulator 122, avoids the edge of the first electrode 1311 from affecting the height change of the upper film layer, which helps to ensure the display effect.

[0095] In some embodiments, the display panel 100 may optionally include an encapsulation layer 150 disposed on the side of the light-emitting layer 130 away from the substrate 110. The encapsulation layer 150 includes a plurality of encapsulation units 151, and the encapsulation units 151 are correspondingly disposed with at least one light-emitting unit 131.

[0096] The encapsulation layer 150 provides encapsulation and protection for the isolation structure 120 and the light-emitting unit 131. The encapsulation layer 150 can be a single-layer structure made of inorganic or organic materials, or a multilayer structure made of at least one of these materials; no limitation is made here. By providing the encapsulation layer 150, the encapsulation unit 151 can effectively encapsulate the isolation opening 121, improving its resistance to moisture. This prevents moisture from penetrating the encapsulation layer 150 and entering the interior of the display panel 100, thus preventing encapsulation failure and avoiding dark spots within the display panel 100, thereby improving the display effect of the display panel 100.

[0097] In some embodiments, the encapsulation unit 151 may optionally include a body portion 1511 and an extension portion 1512 connected to each other. The body portion 1511 covers the side surface of the light-emitting unit 131 away from the substrate 110. The extension portion 1512 extends at least partially to the side surface of the blocking portion 123 away from the substrate 110. The orthographic projection of the extension portion 1512 on the substrate 110 at least partially overlaps with the orthographic projection of the isolator 122 on the substrate 110.

[0098] Please combine Figure 1 And see Figure 5 In some embodiments, optionally, the orthographic projection of the first electrode 1311 on the substrate 110 is located within the orthographic projection of the packaging unit 151 on the substrate 110.

[0099] and Figure 2 The difference in the illustrated embodiment is that, in this embodiment, the extension 1512 of the packaging unit 151 extends longer in the direction away from the main body 1511, and the coverage area of ​​the extension 1512 is wider. As a result, the coverage area of ​​the orthographic projection of the packaging unit 151 on the substrate 110 is relatively large, while the coverage area of ​​the orthographic projection of the first electrode 1311 on the substrate 110 is relatively small. This allows the orthographic projection of the packaging unit 151 on the substrate 110 to cover the orthographic projection of the first electrode 1311 on the substrate 110. This arrangement helps to improve the stability of the packaging unit 151 and ensure the packaging effect.

[0100] In some embodiments, the display panel 100 may optionally include a protective layer disposed on the side of the blocking portion 123 opposite to the substrate 110.

[0101] The protective layer can be made of a dry film layer that is not easily deformed or has a small deformation. By providing a protective layer on the side of the blocking part 123 away from the substrate 110, the blocking part 123 can be pressed tightly, further preventing the blocking part 123 from deforming.

[0102] Please combine Figures 1 to 5 And see Figure 6This application also provides a display device 10, which includes a display panel 100 as described in any of the above embodiments.

[0103] The display panel 100 disclosed in this application embodiment is applied in the display device 10 to provide screen display function. The display device 10 can be any product or component with display function, including but not limited to mobile phones, tablets, laptops, e-readers, wearable devices, remote controls, televisions, desktop computers, vehicle equipment, etc. Since the display panel 100 in any of the above embodiments is used, the isolator 122 and the blocking part 123 in the isolation structure 120 satisfy the above relationship. Thus, the thickness of the blocking part 123 is relatively thick, and the length of the blocking part 123 protruding from the isolator 122 is relatively short. The structure of the isolator 122 and the blocking part 123 is more stable, which can effectively prevent the blocking part 123 from deforming in subsequent processing steps. This makes the structure of the isolation opening 121 enclosed by the isolation structure 120 more stable, and the display effect is not affected by the deformation of the film layer.

[0104] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0105] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. An array substrate, characterized in that, include: substrate; An isolation structure is disposed on one side of the substrate, the isolation structure enclosing an isolation opening, the isolation structure including an isolation body and a blocking portion stacked together, the blocking portion being located 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 blocking portion on the substrate, the isolation body and the blocking portion satisfying the following relationship: h1 / L1≥0.1, wherein, along the direction perpendicular to the surface of the substrate, the size of the blocking portion is h1; along the direction parallel to the contact surface between the blocking portion and the isolation body, the size of the blocking portion protruding from the isolation body is L1.

2. The array substrate as described in claim 1, characterized in that, The isolator and the blocking part satisfy the following relationship: h1 / L1≤2; And / or, along a direction parallel to the contact surface between the blocking portion and the isolator, the blocking portion protrudes from the isolator by a dimension L1 ≤ 1 μm.

3. The array substrate as described in claim 1, characterized in that, Along a direction perpendicular to the surface of the substrate, the dimension h1 of the blocking portion is ≥ 0.1 μm; Preferably, the size h1 of the blocking part is ≤0.5μm.

4. The array substrate as described in claim 3, characterized in that, The isolation structure further includes a base, which is located on the side of the isolation body closer to the substrate, and the orthographic projection of the isolation body on the substrate is located within the orthographic projection of the base on the substrate.

5. The array substrate as described in claim 1, characterized in that, Along the direction from the isolator to the blocking portion, the size of the blocking portion decreases.

6. The array substrate as described in claim 5, characterized in that, The blocking portion includes a top surface, a bottom surface, and a side wall surface. The top surface and the bottom surface are opposite to each other and spaced apart. The side wall surface is connected to the top surface and the bottom surface. The orthographic projection of the top surface on the substrate is located within the orthographic projection of the bottom surface on the substrate. The blocking portion satisfies the following relationship: 70°≤α≤90°, wherein the included angle between the bottom surface and the side wall surface is α.

7. The array substrate as claimed in claim 1, characterized in that, The array substrate further includes a pixel defining layer, which is disposed on the side of the isolation structure near the substrate. The pixel defining layer defines a plurality of pixel openings spaced apart from each other, and the pixel openings are in communication with the isolation openings.

8. The array substrate as claimed in claim 7, characterized in that, The distance L2 between the edge of the orthogonal projection of the pixel defining layer on the substrate and the edge of the orthogonal projection of the blocking portion on the substrate is not less than 1 μm.

9. The array substrate as claimed in claim 7, characterized in that, The isolation structure and the pixel defining layer satisfy the following relationship: h2≥1μm, wherein, along the direction perpendicular to the surface of the substrate, the distance between the surface of the pixel defining layer near the substrate and the bottom surface of the blocking portion is h2.

10. The array substrate as claimed in claim 1, characterized in that, The blocking portion includes a main body and a protruding portion. The main body is disposed on the side of the isolator away from the substrate, and the protruding portion protrudes from the isolator relative to the main body in a direction close to the isolation opening. The distance between the main body and the substrate is equal to the distance between the protruding portion and the substrate.

11. An array substrate, characterized in that, include: substrate; An isolation structure is provided on one side of the substrate, the isolation structure surrounds an isolation opening, the isolation structure includes an isolation body and a blocking part stacked together, the blocking part is located on the side of the isolation body away from the substrate, and the orthographic projection of the isolation body on the substrate is located within the orthographic projection of the blocking part on the substrate; Wherein, along the direction perpendicular to the surface of the substrate, the size h1 of the blocking portion is ≥0.1μm.

12. The array substrate as claimed in claim 11, characterized in that, Along a direction perpendicular to the surface of the substrate, the size h1 of the blocking portion is ≤0.5μm.

13. The array substrate as claimed in claim 11, characterized in that, The isolator and the blocking part satisfy the following relationship: h1 / L1≥0.1, wherein the distance between the edge of the orthographic projection of the surface of the blocking part near the isolator on the substrate and the edge of the orthographic projection of the surface of the isolator near the blocking part on the substrate is L1.

14. A display panel, characterized in that, include: The array substrate as described in any one of claims 1 to 13; A light-emitting layer is disposed on one side of the array substrate. The light-emitting layer includes a plurality of light-emitting units spaced apart from each other, and the light-emitting units are disposed corresponding to the isolation openings.

15. The display panel as claimed in claim 14, characterized in that, The light-emitting layer includes a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit; In the isolation structure located on one side of the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit, the values ​​of h1 / L1 are different for each unit.

16. The display panel as claimed in claim 14, characterized in that, Along the direction from the array substrate to the light-emitting layer, the light-emitting unit includes a first electrode, a light-emitting portion, and a second electrode stacked sequentially. The orthographic projection of the first electrode on the substrate at least partially overlaps with the orthographic projection of the insulator on the substrate.

17. The display panel as claimed in claim 16, characterized in that, The display panel further includes an encapsulation layer disposed on the side of the light-emitting layer away from the substrate. The encapsulation layer includes a plurality of encapsulation units, and the encapsulation units are correspondingly disposed with at least one of the light-emitting units.

18. The display panel as claimed in claim 17, characterized in that, The encapsulation unit includes a body portion and an extension portion connected to each other. The body portion covers the side surface of the light-emitting unit opposite to the substrate. The extension portion extends at least partially to the side surface of the blocking portion opposite to the substrate. The orthographic projection of the extension portion on the substrate at least partially overlaps with the orthographic projection of the isolator on the substrate.

19. The display panel as claimed in claim 17, characterized in that, The orthographic projection of the first electrode on the substrate is located within the orthographic projection of the packaging unit on the substrate.

20. The display panel as claimed in claim 14, characterized in that, The display panel further includes a protective layer disposed on the side of the blocking portion away from the substrate.

21. A display device, characterized in that, include: The display panel as described in any one of claims 14 to 20.

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