Display panel and device

Abstract

The invention provides a display panel and a display device. The display panel comprises an array substrate, an isolation layer, a light emitting layer and a light shielding layer. The isolation layer is located on one side of the array substrate and comprises a plurality of isolation structures, and each isolation structure comprises a plurality of openings. The light-emitting layer comprises a plurality of light-emitting devices, and the light-emitting devices are at least partially surrounded by the isolation structures. The light shielding layer comprises a first light shielding part, and the orthographic projection of the first light shielding part covers the orthographic projection of the opening in the isolation structure in the stacking direction of the array substrate and the light emitting layer. In the stacking direction of the array substrate and the light-emitting layer, the distance from the surface, away from the array substrate, of the isolation layer to the array substrate is a first distance, the distance from the surface, away from the array substrate, of the light-emitting layer to the array substrate is a second distance, and the maximum distance from the surface, away from the array substrate, of the light shielding layer to the array substrate is a third distance. The first distance is smaller than the second distance and larger than the third distance. The light-emitting device is used for reducing the adverse effect of IJP packaging on the light-emitting device.

Description

Technical Field

[0001] This application relates to the field of displays, and more particularly to a display panel and device. Background Technology

[0002] Display panels require encapsulation during manufacturing to protect the light-emitting devices. For example, in Micro-LED (Micro Light Emitting Diode) display panels, after the diodes are transferred in batches, they need to be encapsulated using IJP (Ink Jet Printing). However, IJP encapsulation uses liquid ink, and the diode surface is roughened to improve display quality. This causes the diode surface structure to exhibit capillary adhesion to the ink, allowing the ink to rise to the diode surface and negatively impact light emission. Summary of the Invention

[0003] In view of this, embodiments of this application provide a display panel and device to reduce the adverse effects of IJP packaging on light-emitting devices.

[0004] In a first aspect, embodiments of this application provide a display panel, comprising: an array substrate, an isolation layer, a light-emitting layer, and a light-shielding layer. The isolation layer is located on one side of the array substrate and includes a plurality of isolation structures, each including a plurality of openings. The light-emitting layer and the isolation layer are located on the same side of the array substrate. The light-emitting layer includes a plurality of light-emitting devices, each of which is at least partially surrounded by an isolation structure. The light-shielding layer and the isolation layer are located on the same side of the array substrate. The light-shielding layer includes a first light-shielding portion, the orthographic projection of which covers the orthographic projection of an opening in the isolation structure along the stacking direction of the array substrate and the light-emitting layer. Wherein, along the stacking direction of the array substrate and the light-emitting layer, the distance from the surface of the isolation layer facing away from the array substrate is a first distance. Along the stacking direction of the array substrate and the light-emitting layer, the distance from the surface of the light-emitting layer facing away from the array substrate is a second distance. Along the stacking direction of the array substrate and the light-emitting layer, the maximum distance from the surface of the light-shielding layer facing away from the array substrate is a third distance. The first distance is less than the second distance, and the first distance is greater than the third distance.

[0005] Secondly, embodiments of this application provide a display device, including the display panel provided in the first aspect.

[0006] The display panel provided in this application embodiment isolates the ink from the light-emitting device through an isolation structure to suppress the rapid diffusion of ink to the vicinity of the light-emitting device. An opening is formed in the isolation structure, and the ink is allowed to cover the array substrate at the bottom of the light-emitting device by utilizing the opening and the capillary action of the light-emitting device. This achieves the following: the ink can cover the reflective metal of the array substrate at the bottom of the light-emitting device, and it can also effectively prevent the ink from being adsorbed onto the light-emitting surface of the light-emitting device by capillary action. Attached Figure Description

[0007] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments 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.

[0008] Figure 1 A schematic diagram of a display panel provided in an embodiment of this application; Figure 2 An embodiment provided in this application Figure 1 A magnified view of a portion of region A in the middle; Figure 3 An embodiment provided in this application Figure 2 A cross-sectional schematic diagram of AA in the middle; Figure 4 An embodiment provided in this application Figure 2 Cross-sectional schematic diagram of BB; Figure 5 An embodiment provided in this application Figure 2 A cross-sectional schematic diagram of AA in the middle; Figure 6 An embodiment provided in this application Figure 1 A magnified view of region A in the diagram; Figure 7 An embodiment provided in this application Figure 1 A magnified view of region A in the diagram; Figure 8 An embodiment provided in this application Figure 1 A magnified view of region A in the diagram; Figure 9 An embodiment provided in this application Figure 1 A magnified view of region A in the diagram; Figure 10 An embodiment provided in this application Figure 1 A magnified view of region A in the diagram; Figure 11 An embodiment provided in this application Figure 1A magnified view of region A in the diagram; Figure 12 An embodiment provided in this application Figure 1 A magnified view of region A in the diagram; Figure 13 An embodiment provided in this application Figure 2 A cross-sectional schematic diagram of AA in the middle; Figure 14 This is a schematic diagram of a display device provided in an embodiment of this application.

[0009] Label Explanation 100, Display panel; 101, Array substrate; 11, Isolation layer; 110, Isolation structure; 110a, First isolation structure; 111, Opening; 120, Light-emitting layer; 121, Light-emitting device; 121a, First light-emitting device; 121b, Second light-emitting device; 121c, Third light-emitting device; 130, Light-shielding layer; 131, First part; 132, Second part; 200, Display device. Detailed Implementation

[0010] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0011] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0012] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0013] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0014] To reduce the adverse effects of ink on light-emitting devices during IJP packaging, this application provides a display panel and device to solve the aforementioned problems. The inventive concept of this application can be summarized as follows: A display panel includes an array substrate, an isolation layer, a light-emitting layer, and a light-shielding layer. The isolation layer includes a plurality of isolation structures for isolating ink and light-emitting devices. Each isolation structure includes multiple openings. The light-emitting layer includes a plurality of light-emitting devices, at least partially surrounded by the isolation structures, thereby facilitating the prevention of excessive ink flow from outside the isolation structures to the vicinity of the light-emitting devices. The light-shielding layer is fabricated using IJP and includes a first light-shielding portion. Along the stacking direction of the array substrate and the light-emitting layer, the orthographic projection of the first light-shielding portion covers the orthographic projection of the openings in the isolation structure. Specifically, along the stacking direction of the array substrate and the light-emitting layer, the distance from the surface of the isolation layer away from the array substrate is a first distance. Along the stacking direction of the array substrate and the light-emitting layer, the distance from the surface of the light-emitting layer away from the array substrate is a second distance. Along the stacking direction of the array substrate and the light-emitting layer, the maximum distance from the surface of the light-shielding layer away from the array substrate is a third distance. The first distance is less than the second distance, and the first distance is greater than the third distance. In this inventive concept, an isolation structure is used to separate the ink from the light-emitting device to prevent capillary adsorption of the ink onto the light-emitting surface of the device. An opening is made in the isolation structure to allow the ink to cover the array substrate at the bottom of the light-emitting device. This achieves the following: the ink can cover the reflective metal of the array substrate at the bottom of the light-emitting device, while effectively preventing the ink from being adsorbed onto the light-emitting surface of the device by capillary adsorption.

[0015] In the specific implementation method, combined with Figures 1 to 4 This application provides a display panel 100, including: an array substrate 101, an isolation layer 11, a light-emitting layer 120, and a light-shielding layer 130.

[0016] Combination Figures 2 to 4An isolation layer 11 is located on one side of the array substrate 101, and includes several isolation structures 110. The isolation structures 110 isolate the ink in the light-shielding layer 130 located on the side of the isolation structure 110 opposite to the light-emitting device 121 from the light-emitting device 121. During IJP packaging, the isolation structures 110 effectively prevent ink from flowing to the light-emitting device 121. The isolation structures 110 include multiple openings 111, which allow a small amount of ink to flow into the bottom of the light-emitting device 121 and cover the array substrate 101 at the bottom of the light-emitting device 121, thereby providing light shielding for the array substrate 101 and ultimately improving the display defects caused by the reflection of ambient light by the metal within the array substrate 101. During IJP packaging, the ink has viscosity. Relying solely on the opening 111 and the ink's own flow force, the ink's coverage of the array substrate 101 below the light-emitting device 121 is not good. However, due to the structure of the light-emitting device 121, it possesses a capillary adsorption effect. Therefore, through the opening 111, some ink flows to the periphery of the light-emitting device 121. The light-emitting device 121 uses its own capillary adsorption to adsorb the ink to its bottom, effectively covering the array substrate 101 at the bottom of the light-emitting device 121. At the same time, due to the presence of the isolation structure 110, the capillary effect of the light-emitting device 121 is insufficient to adsorb the ink to the light-emitting surface.

[0017] Combination Figures 2 to 4 The light-emitting layer 120 and the isolation layer 11 are located on the same side of the array substrate 101. The light-emitting layer 120 includes a plurality of light-emitting devices 121, and each light-emitting device 121 is at least partially surrounded by a corresponding isolation structure 110. To enhance the light emission effect, the surface of the light-emitting device 121 is roughened to have many microstructures, which can generate a capillary adsorption effect on the ink. The isolation structure 110 at least partially surrounds the light-emitting device 121, which can prevent a large amount of ink from flowing to the area around the light-emitting device 121. The microstructures of the light-emitting device 121 come into contact with the ink flowing in from the opening 111, so that the ink is adsorbed to the bottom of the light-emitting device 121 under the action of capillary adsorption, thereby covering the array substrate 101 at the bottom of the light-emitting device 121.

[0018] Combination Figures 2 to 4 The light-shielding layer 130 and the isolation layer 11 are located on the same side of the array substrate 101. The light-shielding layer 130 includes a first light-shielding portion. Along the stacking direction of the array substrate 101 and the light-emitting layer 120, the orthographic projection of the first light-shielding portion covers the orthographic projection of the opening 111 in the isolation structure 110. The light-shielding layer 130 includes ink. For example, the light-shielding layer 130 is fabricated by an IJP process, so the light-shielding layer 130 can be a dried ink layer. The light-shielding layer 130 located within the opening 111 is referred to as the first portion 131, and the first light-shielding portion includes the first portion 131.

[0019] like Figure 4 As shown, along the stacking direction of the array substrate 101 and the light-emitting layer 120, the distance between the surface of the isolation layer 11 facing away from the array substrate 101 and the array substrate 101 is a first distance H1. Along the stacking direction of the array substrate 101 and the light-emitting layer 120, the distance between the surface of the light-emitting layer 120 facing away from the array substrate 101 and the array substrate 101 is a second distance H2. Along the stacking direction of the array substrate 101 and the light-emitting layer 120, the maximum distance between the surface of the light-shielding layer 130 facing away from the array substrate 101 and the array substrate 101 is a third distance H3. The first distance H1 is less than the second distance H2, and the first distance H1 is greater than the third distance H3.

[0020] H1 < H2 and H1 > H3, meaning that along the stacking direction of the array substrate 101 and the light-emitting layer 120, the height of the light-emitting layer 120 is higher than the height of the isolation layer 11, and the height of the isolation layer 11 is higher than the height of the light-shielding layer 130. Therefore, the isolation structure 110 can effectively perform its isolation function and can help suppress capillary adsorption of ink onto the light-emitting surface of the light-emitting device 121, thereby improving the problem of ink contamination on the light-emitting surface of the light-emitting device 121 during IJP packaging and ultimately enhancing the light emission effect of the light-emitting device 121.

[0021] Therefore, in this embodiment, the ink is isolated from the light-emitting device 121 by setting an isolation structure 110 to suppress the rapid diffusion of the ink to the vicinity of the light-emitting device 121. An opening 111 is formed in the isolation structure 110, and the ink covers the array substrate 101 at the bottom of the light-emitting device 121 by utilizing the opening 111 and the capillary adsorption effect of the light-emitting device 121. Thus, it is possible to achieve the following: the ink can cover the reflective metal of the array substrate 101 at the bottom of the light-emitting device 121, and it can also effectively prevent the ink from being adsorbed to the light-emitting surface of the light-emitting device 121 under the action of capillary adsorption.

[0022] like Figure 3 As shown, in one embodiment of this application, the opening 111 penetrates the isolation structure 110. During the IJP packaging process, the ink has viscosity, and the opening 111 penetrating the isolation structure 110 is more conducive to the capillary adsorption of the light-emitting device 121 to adsorb the ink to the bottom of the light-emitting device 121, so that the ink covers the array substrate 101 at the bottom of the light-emitting device 121.

[0023] like Figure 5 As shown, in one embodiment of this application, the opening 111 is a blind hole, and the opening 111 of the blind hole faces away from the array substrate 101.

[0024] In this embodiment, the opening 111 is a blind hole and is away from the opening 111 of the array substrate 101. This facilitates the entry of ink into the bottom of the light-emitting device 121 through the opening 111 during the IJP packaging process, and also helps to suppress capillary adsorption to adsorb the ink onto the light-emitting surface of the light-emitting device 121.

[0025] In one embodiment of this application, the first distance H1 satisfies: 3µm ≤ H1 ≤ 5µm. This first distance H1 satisfies this range, which on the one hand facilitates the light-shielding effect of the light-shielding layer 130, and on the other hand helps to ensure the optical performance of the light-emitting device 121. Specifically, if the first distance is less than 3µm, it means that the thickness of the light-shielding layer 130 is also less than 3µm, and the thinner the light-shielding layer 130, the worse its light-shielding effect; if the first distance is greater than 5µm, it means that the thickness of the light-emitting layer 120 must be greater than 5µm, which will lead to increased cost and decreased optical performance, and may even lead to increased power consumption.

[0026] In one embodiment of this application, along the direction from the isolation structure 110 toward the light-emitting device 121, the minimum distance L1 between the isolation structure 110 and the light-emitting device 121 satisfies: 8µm ≤ L1 ≤ 12µm. The minimum distance L1 between the isolation structure 110 and the light-emitting device 121 satisfies the above condition, which allows the microstructure on the surface of the light-emitting device 121 to exert a capillary adsorption effect on the ink, while preventing the capillary adsorption effect from adsorbing the ink onto the light-emitting surface of the light-emitting device 121.

[0027] like Figure 6 As shown, in one embodiment of this application, a plurality of isolation structures 110 include a first isolation structure 110a, and a plurality of light-emitting devices 121 include a first light-emitting device 121a and a second light-emitting device 121b. The first light-emitting device 121a and the second light-emitting device 121b emit different colors of light. The first light-emitting device 121a and the second light-emitting device 121b are surrounded by the first isolation structure 110. Along the direction from the isolation structure 110 toward the light-emitting device 121, the minimum distance L1 between the first isolation structure 110a and the first light-emitting device 121a is different from the minimum distance L2 between the first isolation structure 110a and the second light-emitting device 121b.

[0028] In this embodiment, the first light-emitting device 121a and the second light-emitting device 121b are located within the same isolation structure 110a. The minimum distance between the light-emitting devices 121 of different colors and the first isolation structure 110a is different. This facilitates differentiated design based on the different sizes and optical characteristics of the light-emitting devices 121 of different colors, resulting in a better overall display effect of the display panel 100 and easier control of production costs. For example, in one possible implementation, this differentiated design can accommodate the differences in the sizes of RGB LED beads, thereby reducing the design difficulty and manufacturing cost of the isolation structure 110.

[0029] For example, the first light-emitting device 121a is a green light-emitting device 121, and the second light-emitting device 121b is a red light-emitting device 121. The minimum distance L1 between the first light-emitting device 121a and the first isolation structure 110a is less than the minimum distance L2 between the second light-emitting device 121b and the first isolation structure 110a. The size of the first light-emitting device 121 is larger than the size of the second light-emitting device 121. Therefore, in this implementation, the first isolation structure 110 can be a simple rectangular frame, which helps to reduce design costs and manufacturing costs.

[0030] For example, the first light-emitting device 121 is a blue light-emitting device 121, and the second light-emitting device 121 is a green light-emitting device 121 or a red light-emitting device 121. The minimum distance between the first light-emitting device 121 and the first isolation structure 110 is smaller than the minimum distance between the second light-emitting device 121 and the first isolation structure 110. This design can accommodate the poor anti-interference ability of the blue light-emitting device 121, which is most susceptible to negative impacts from ambient light due to its high light attenuation rate. Furthermore, designing the minimum distance between the first light-emitting device 121 and the first isolation structure 110 to be the smallest among RGB light-emitting devices 121 allows for better ink coverage of the array substrate 101 at the bottom of the first light-emitting device 121, thus further reducing the adverse effects of ambient reflected light on the first light-emitting device 121.

[0031] like Figure 7 As shown, in one embodiment of this application, a plurality of isolation structures 110 include a first isolation structure 110a, and a plurality of light-emitting devices 121 include a first light-emitting device 121a. The first light-emitting device 121a is surrounded by the first isolation structure 110a. The first isolation structure 110a includes a first frame strip L11 and a second frame strip L12. The first frame strip L11 and the second frame strip L12 are connected and intersect. The minimum distance d1 between the first frame strip L11 and the first light-emitting device 121a is different from the minimum distance d2 between the second frame strip L12 and the first light-emitting device 121a.

[0032] For example, the light-emitting device 121 includes a first side length and a second side length, which are connected. The first side length is parallel to the first frame strip L11, and the second side length is parallel to the second frame strip L12. The length of the first side length is greater than the length of the second side length. The minimum distance d1 between the first frame strip L11 and the first light-emitting device 121a is greater than the minimum distance d2 between the second frame strip L12 and the first light-emitting device 121a. Appropriately increasing the minimum distance between the isolation structure 110 and the light-emitting device 121 can reduce capillary adsorption. The long side of the light-emitting device 121 has more capillary structures; therefore, it is necessary to appropriately increase the spacing between it and the isolation structure 110 to prevent the capillary adsorption of the light-emitting device 121 from adsorbing ink onto the surface of the light-emitting device 121.

[0033] In this embodiment, the minimum distance d1 between the first frame strip L11 and the first light-emitting device 121a is different from the minimum distance d2 between the second frame strip and the first light-emitting device 121. This allows for a differentiated design to be adapted to the shape of the first light-emitting device 121a, thereby facilitating a further improvement in the successful utilization of the capillary adsorption effect of the light-emitting device 121. In other words, it is necessary to utilize the capillary adsorption effect of the light-emitting device 121 to adsorb the ink to the bottom of the light-emitting device 121, while simultaneously suppressing the capillary adsorption effect of the light-emitting device 121 to adsorb the ink to the light-emitting device 121.

[0034] like Figure 8 As shown, in one embodiment of this application, a plurality of isolation structures 110 include a first isolation structure 110a, and a plurality of light-emitting devices 121 include a first light-emitting device. The first light-emitting device is surrounded by the first isolation structure. The first isolation structure 110a includes a first frame strip and a second frame strip. The first frame strip and the second frame strip are connected and intersect. The minimum distance d1 between the first frame strip and the first light-emitting device is equal to the minimum distance between the second frame strip and the first light-emitting device.

[0035] like Figure 2 As shown, in one embodiment of this application, the opening 111 of the isolation structure 110 includes a first inner wall 1111 and a second inner wall 1112. The first inner wall 1111 and the second inner wall 1112 are opposite each other. Along the direction from the first inner wall 1111 to the second inner wall 1112, the diameter D1 of the opening 111 satisfies: 6um≤D1≤10um.

[0036] In this embodiment, the diameter D1 of the opening 111 satisfies: 6um≤D1≤10um, which can control the amount of ink that the light-emitting device 121 comes into contact with, thereby achieving the following: the light-emitting device 121 can adsorb the ink to the bottom of the light-emitting device 121 based on capillary adsorption, while also preventing the light-emitting device 121 from adsorbing the ink to the top of the light-emitting device 121 based on capillary adsorption.

[0037] like Figure 8As shown, in one embodiment of this application, the opening 111 of the isolation structure 110 includes a first inner wall 1111 and a second inner wall 1112, with the first inner wall 1111 and the second inner wall 1112 facing each other. A plurality of openings 111 include a first opening 111 and a second opening 111. Along the direction from the first inner wall 1111 towards the second inner wall 1112, the diameter D11 of the first opening 111 and the diameter D12 of the second opening 111 are different.

[0038] In this embodiment, the diameter D11 of the first opening 111 is different from the diameter D12 of the second opening 111, realizing a differentiated design of the diameter of the opening 111. This differentiated design can better adapt to the differences of the light-emitting device 121, thereby helping to further improve the IJP packaging quality and ultimately improve the display effect.

[0039] For example, such as Figure 8 As shown, the microstructures on the surfaces of light-emitting devices 121 of different colors are not entirely consistent. To accommodate this inconsistency, the aperture of the opening 111 is designed differently. For example, taking the first isolation structure 110a as an example, the microstructure density (i.e., the number of microstructures per unit area) of the light-emitting device 121 surrounded by the first isolation structure 110a and closest to the first opening 111 is the first density, and the microstructure density (i.e., the number of microstructures per unit area) of the light-emitting device 121 surrounded by the first isolation structure 110a and closest to the second opening 111 is the second density. The first density is greater than the second density, and the aperture D11 of the first opening 111 is smaller than the aperture D12 of the second opening 111. A higher microstructure density means stronger capillary adsorption, so the corresponding aperture of the opening 111 needs to be reduced to ensure that the difference in ink thickness at the bottom of different light-emitting devices 121 is not significant, thus ensuring the uniformity of the final thickness of the light-shielding layer and ultimately improving the display effect of the display panel 100.

[0040] For example, such as Figure 9 As shown, to address the varying microstructure densities at different locations on the same light-emitting device 121, the aperture of the opening 111 is designed differently. The first opening 111 and the second opening 111 are located on opposite sides of the same light-emitting device 121. The microstructure density on the side of the light-emitting device 121 closer to the first opening 111 is greater than that on the side closer to the second opening 111. The aperture D11 of the first opening 111 is smaller than the aperture D12 of the second opening 111. Higher microstructure density implies stronger capillary adsorption; therefore, the aperture of the corresponding opening 111 needs to be reduced to ensure minimal difference in ink thickness at the bottom corresponding to different sides of the same light-emitting device 121. This ensures the uniformity of the final thickness of the light-shielding layer 130 and ultimately improves the display effect of the display panel 100.

[0041] like Figure 2As shown, in one embodiment of this application, the opening 111 of the isolation structure 110 includes a first inner wall 1111 and a second inner wall 1112, with the first inner wall 1111 and the second inner wall 1112 facing each other. A plurality of openings 111 include a first opening 111 and a second opening 111. Along the direction from the first inner wall 1111 towards the second inner wall 1112, the diameter D11 of the first opening 111 is the same as the diameter D12 of the second opening 111. In one possible implementation, any two openings among the plurality of openings 111 have the same diameter along the direction from the first inner wall 1111 towards the second inner wall 1112.

[0042] In one embodiment of this application, along the direction of the isolation structure 110 toward the light-emitting device 121, the width D2 of the isolation structure 110 satisfies: 3um≤D2≤7um.

[0043] The width D2 of the isolation structure 110 satisfies: 3um ≤ D2 ≤ 7um. This width is sufficient to support the isolation structure 110, thereby improving its stability and preventing it from collapsing.

[0044] like Figure 10 As shown, in one embodiment of this application, the opening 111 of the isolation structure 110 includes a first inner wall 1111 and a second inner wall 1112, with the first inner wall 1111 and the second inner wall 1112 facing each other. The diameter of the opening 111 along the direction from the first inner wall 1111 to the second inner wall 1112 is D1, and the width of the isolation structure 110 along the direction from the isolation structure 110 to the light-emitting device 121 is D2, where D1 is smaller than D2.

[0045] In this embodiment, D1 is less than D2, meaning that the length of the orthographic projection of the opening 111 onto the array substrate 101 along the isolation structure 110 toward the light-emitting device 121 is greater than the length along the first inner wall toward the second inner wall. Therefore, during the IJP packaging process, a narrow and long channel is formed at the opening 111 (i.e., the length in the ink flow direction is greater than the width in the width direction), which facilitates the ink to reach the bottom of the light-emitting device 121 better, so as to cover the array substrate 101 at the bottom of the light-emitting device 121.

[0046] like Figure 3 As shown, in one embodiment of this application, the light-emitting layer 120 includes a pixel unit 120a, the pixel unit 120a includes at least three light-emitting devices 121, and the isolation structure 110 at least partially surrounds the pixel unit.

[0047] In this embodiment, the total number of colors of the light-emitting devices 121 included in the pixel unit is the number of primary colors. For example, the pixel unit includes RGB light-emitting devices 121. The spacing between the pixel units is relatively large, and the isolation structure 110 at least partially surrounds the pixel units, which simplifies the manufacturing process.

[0048] like Figure 9 As shown in one embodiment of this application, the plurality of openings 111 of the isolation structure 110 include a first opening 111a, a second opening 111b, and a third opening 111c. The second opening 111b is adjacent to the first opening 111a and the third opening 111c respectively. The length of the isolation structure 110 between the first opening 111a and the second opening 111b is a first length L1', and the length of the isolation structure 110 between the second opening 111b and the third opening 111c is a second length L2'. The first length L1' and the second length L2' are equal.

[0049] In one embodiment of this application, the first opening 111, the second opening 111, and the third opening 111 of the plurality of openings 111 in the isolation structure 110 are distributed at equal intervals, which helps to reduce manufacturing difficulty and save costs. For example, Figure 11 As shown, in one possible implementation, the length L of the isolation structure 110 between any two adjacent openings 111 is equal.

[0050] like Figure 2 As shown, in one embodiment of this application, the isolation structure 110 includes six openings 111. The isolation structure 110 is frame-shaped, comprising two first frame strips and two second frame strips. The first frame strips and the second frame strips are perpendicular. Two openings 111 are distributed on the first frame strips, and one opening 111 is distributed on the second frame strips. The frame-shaped shape of the isolation structure 110 means that the orthographic projection of the isolation structure 110 onto the array substrate 101 is a first projection, which is frame-shaped.

[0051] In this embodiment, the length of the first frame strip in the isolation structure 110 is greater than the length of the second frame strip in the isolation structure 110. Two openings 111 are provided on the first frame strip and one opening 111 is provided on the second frame strip. This makes the length difference of the isolation structure 110 between adjacent openings 111 similar, thereby improving the overall IJP packaging quality.

[0052] In one embodiment of this application, as Figure 3 As shown, pixel unit 121a includes three light-emitting devices 121, and the three light-emitting devices 121 in the pixel unit are arranged in a direction parallel to the first frame L11.

[0053] Among them, such as Figure 2 As shown, the center line of the opening 111 in the first frame L11 is located on the bisecting plane between the two adjacent light-emitting devices 121, and / or, the center line of the opening 111 in the second frame L12 and the center line of the adjacent light-emitting device 121 are located on the same plane parallel to the first direction X, which is parallel to the first frame.

[0054] In this embodiment, the center line of the opening 111 in the first frame is located on the bisecting plane between two adjacent light-emitting devices 121, meaning that the center of the opening 111 is equidistant from each light-emitting device 121. Therefore, during the IJP packaging process, the ink is distributed more evenly on the bottom of the light-emitting device 121. The center line of the opening 111 in the second frame and the center lines of the adjacent light-emitting devices 121 are located on the same plane parallel to the first direction, which also facilitates a more even distribution of ink on the bottom of the light-emitting device 121 during the IJP packaging process.

[0055] like Figure 12 As shown, in one embodiment of this application, the isolation structure 110 includes two opposing frame strips. The minimum distance between the center line of an opening on one frame strip and the center line of an opening on the other frame strip is greater than zero. That is, the openings on the opposing frame strips are not perfectly symmetrically distributed.

[0056] like Figure 3 or Figure 13 As shown, in one embodiment of this application, the light-shielding layer 130 includes a second portion 132, which is connected to the first portion 131 of the light-shielding layer 130. Along the stacking direction of the array substrate 101 and the light-emitting layer 120, the second portion 132 of the light-shielding layer 130 covers the first portion of the array substrate 101, and the first portion of the array substrate 101 overlaps with the light-emitting device 121. The first portion of the array substrate 101 includes a portion located at the bottom of the light-emitting device 121, but excludes the portion electrically connected to the pins of the light-emitting device.

[0057] like Figure 14 As shown, this application embodiment also provides a display device 200, including the display panel 100 provided in any of the foregoing embodiments.

[0058] The display device provided in this application embodiment can be a mobile phone, tablet computer, computer, television, wearable electronic device, and vehicle display device, etc. In the display device provided in this application embodiment, the display panel 100 isolates the ink from the light-emitting device 121 through an isolation structure 110 to prevent capillary adsorption of the ink onto the light-emitting surface of the light-emitting device 121; and an opening 111 is formed in the isolation structure 110, which facilitates the ink covering the array substrate 101 at the bottom of the light-emitting device 121. Thus, the ink can cover the reflective metal of the array substrate 101 at the bottom of the light-emitting device 121, and effectively prevent the ink from being adsorbed onto the light-emitting surface of the light-emitting device 121 under capillary adsorption.

[0059] The embodiments of this application also need to be explained as follows: (1) The accompanying drawings corresponding to the embodiments of this application only involve the structures involved in the embodiments of this application. Other structures can be referred to the general design.

[0060] (2) For clarity, the thickness of layers or regions is enlarged or reduced in the drawings used to describe embodiments of this application, i.e., these drawings are not drawn to actual scale. It is understood that when an element such as a layer, film, region or substrate is referred to as being "above" or "below" another element, the element may be "directly" located "above" or "below" the other element or there may be intermediate elements.

[0061] (3) Where there is no conflict, the embodiments of this application and the features in the embodiments can be combined with each other to obtain new embodiments. The new embodiments still fall within the scope of disclosure of the embodiments of this application, and the new embodiments can provide support for the protection scope that this application wants to achieve.

[0062] (4) For the same or similar parts between the various embodiments or implementations in this specification, please refer to each other. In particular, for the device embodiments and terminal embodiments, since they are basically similar to the method embodiments or implementations, the description is relatively simple, and the relevant parts can be referred to the description in the method embodiments.

[0063] The above description is merely a specific implementation of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the protection scope of the embodiments of this application.

Claims

1. A display panel, characterized in that, include: Array substrate; An isolation layer is located on one side of the array substrate. The isolation layer includes several isolation structures, and each isolation structure includes multiple openings. A light-emitting layer is located on the same side of the array substrate as the isolation layer. The light-emitting layer includes a plurality of light-emitting devices, and the light-emitting devices are at least partially surrounded by the isolation structure. A light-shielding layer is located on the same side of the array substrate as the isolation layer. The light-shielding layer includes a first light-shielding portion. Along the stacking direction of the array substrate and the light-emitting layer, the orthographic projection of the first light-shielding portion covers the orthographic projection of the opening in the isolation structure. Wherein, along the stacking direction of the array substrate and the light-emitting layer, the distance between the surface of the isolation layer away from the array substrate and the array substrate is a first distance; along the stacking direction of the array substrate and the light-emitting layer, the distance between the surface of the light-emitting layer away from the array substrate and the array substrate is a second distance; along the stacking direction of the array substrate and the light-emitting layer, the maximum distance between the surface of the light-shielding layer away from the array substrate and the array substrate is a third distance; the first distance is less than the second distance, and the first distance is greater than the third distance.

2. The display panel according to claim 1, characterized in that, The opening extends through the isolation structure.

3. The display panel according to claim 1, characterized in that, The opening is a blind hole, and the opening of the blind hole faces away from the array substrate.

4. The display panel according to claim 1, characterized in that, The plurality of isolation structures include a first isolation structure, and the plurality of light-emitting devices include a first light-emitting device and a second light-emitting device. The first light-emitting device and the second light-emitting device emit different colors of light. The first light-emitting device and the second light-emitting device are surrounded by the first isolation structure. Along the direction of the isolation structure toward the light-emitting device, the minimum distance between the first isolation structure and the first light-emitting device is different from the minimum distance between the first isolation structure and the second light-emitting device.

5. The display panel according to claim 1, characterized in that, The plurality of isolation structures include a first isolation structure, and the plurality of light-emitting devices include a first light-emitting device. The first light-emitting device is surrounded by the first isolation structure. The first isolation structure includes a first frame strip and a second frame strip. The first frame strip and the second frame strip are connected and intersect. The minimum distance between the first frame strip and the first light-emitting device is different from the minimum distance between the second frame strip and the first light-emitting device.

6. The display panel according to claim 1, characterized in that, The opening of the isolation structure includes a first inner wall and a second inner wall, the first inner wall being opposite to the second inner wall; the plurality of openings includes a first opening and a second opening; along the direction from the first inner wall toward the second inner wall, the diameter of the first opening is different from the diameter of the second opening.

7. The display panel according to claim 1, characterized in that, The opening of the isolation structure includes a first inner wall and a second inner wall, with the first inner wall and the second inner wall facing each other; the diameter of the opening along the direction from the first inner wall toward the second inner wall is smaller than the width of the isolation structure along the direction from the isolation structure toward the light-emitting device.

8. The display panel according to claim 1, characterized in that, The light-emitting layer includes pixel units, each pixel unit including at least three light-emitting devices, and the isolation structure at least partially surrounds the pixel units.

9. The display panel according to claim 8, characterized in that, The isolation structure includes a first opening, a second opening, and a third opening. The second opening is adjacent to the first opening and the third opening, respectively. The length of the isolation structure between the first opening and the second opening is a first length, and the length of the isolation structure between the second opening and the third opening is a second length. The first length and the second length are equal.

10. The display panel according to claim 8, characterized in that, The isolation structure includes six openings. The isolation structure is frame-shaped, and the frame includes two first frame strips and two second frame strips. The first frame strips are perpendicular to the second frame strips. Two openings are distributed on the first frame strips, and one opening is distributed on the second frame strips.

11. The display panel according to claim 10, characterized in that, The pixel unit includes three light-emitting devices, and the three light-emitting devices in the pixel unit are arranged in a direction parallel to the first frame strip; Wherein, the center line of the opening in the first frame is located on the bisecting plane between two adjacent light-emitting devices, and / or, the center line of the opening in the second frame and the center line of the adjacent light-emitting device are located on the same plane parallel to the first direction, which is parallel to the first frame.

12. The display panel according to claim 1, characterized in that, The light-shielding layer includes a second portion, which is connected to the first portion of the light-shielding layer; along the stacking direction of the array substrate and the light-emitting layer, the second portion of the light-shielding layer covers the first portion of the array substrate, and the first portion of the array substrate overlaps with the light-emitting device.

13. A display device, characterized in that, Includes the display panel as described in any one of claims 1-12.

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