Display panel and electronic equipment

Abstract

The embodiment of the invention provides a display panel and electronic equipment, and relates to the technical field of display. In the display panel, in a first display area, different first isolation structures forming first isolation openings in a surrounding mode are independently arranged on a substrate, that is, the first isolation structures are only used for forming the first isolation openings, and due to the design, no first isolation structure is distributed in the area between the first isolation openings; the shading area of the first isolation structure in the first display area can be reduced, so that the light transmittance of the first display area is improved, the realization of under-screen functions (such as under-screen fingerprint identification and under-screen camera shooting) is facilitated, the use experience of a user is improved, and the market competitiveness of a product is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and an electronic device. Background Art

[0002] Organic Light Emitting Diode (OLED) is considered to be the next generation display technology after liquid crystal display technology. It is widely used in various consumer electronic products such as smart phones, TVs, laptops, desktop computers, car displays, wearable devices, etc. due to its excellent color and picture quality, and has become the mainstream technology in display panels.

[0003] However, the process performance of current OLED display products needs to be further improved. Summary of the invention

[0004] In order to overcome the technical problems mentioned in the above technical background, the present application provides a display panel and an electronic device.

[0005] In a first aspect of the present application, a display panel is provided, the display panel comprising a first display area, and the display panel further comprising:

[0006] substrate;

[0007] An isolation structure is located on one side of the substrate, the isolation structure encloses an isolation opening, the isolation structure includes a plurality of first isolation structures located in the first display area, the isolation opening includes a first isolation opening correspondingly enclosed by each of the first isolation structures on the substrate, wherein the different first isolation structures enclosed to form the first isolation opening are independently arranged on the substrate.

[0008] In a possible implementation of the present application, the orthographic projection of the first isolation structure on the substrate is a ring;

[0009] Preferably, the orthographic projection of the first isolation structure on the substrate includes a circular ring

[0010] Preferably, the inner diameters of the orthographic projections of the first isolation structures on the substrate are the same.

[0011] In a possible implementation of the present application, a second display area is further included, the second display area at least partially surrounds the first display area, the light transmittance of the first display area is greater than that of the second display area, the isolation structure further includes a second isolation structure located in the second display area; the isolation opening further includes a second isolation opening formed by the second isolation structure on the substrate;

[0012] Preferably, the orthographic projection of the second isolation structure located in the second display area on the substrate is in a mesh shape.

[0013] In a possible implementation of the present application, on a cross section perpendicular to the plane where the substrate is located and passing through the geometric center of the first isolation opening, the orthographic projection of the first isolation structure on the substrate has a first size; on a cross section perpendicular to the plane where the substrate is located and passing through the geometric center of the second isolation opening, the orthographic projection of the second isolation structure on the substrate has a second size, wherein the first size is smaller than the second size.

[0014] In a possible implementation of the present application, a difference between the second size and the first size is greater than or equal to 1 μm.

[0015] In a possible implementation of the present application, the display panel further includes a light emitting device, and the light emitting device is located in the isolation opening;

[0016] Preferably, the distribution density of the light emitting devices in the first display area is less than or equal to the distribution density of the light emitting devices in the second display area;

[0017] Preferably, the light emitting area of ​​the light emitting device with the same light emitting color in the first display area is smaller than the light emitting area in the second display area.

[0018] In a possible implementation of the present application, a shape of an orthographic projection of the second isolation opening on the substrate is different from a shape of an orthographic projection of the first isolation opening on the substrate;

[0019] Preferably, the shape of the orthographic projection of the second isolation opening on the substrate includes a rectangle, and the shape of the orthographic projection of the first isolation opening on the substrate includes a circle or an ellipse;

[0020] Preferably, an area of ​​an orthographic projection of the second isolation opening on the substrate is larger than an area of ​​an orthographic projection of the first isolation opening on the substrate;

[0021] Preferably, the first isolation openings located in the first display area have the same size.

[0022] In a possible implementation of the present application, the display panel further includes a pixel defining layer, the pixel defining layer is located on one side of the substrate, and the isolation structure is located on a side of the pixel defining layer away from the substrate;

[0023] The pixel definition layer defines a pixel opening on the substrate, and the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the isolation opening on the substrate;

[0024] Preferably, a light-emitting device is provided in the pixel opening. In the direction away from the substrate, the light-emitting device includes a first electrode, a light-emitting material layer and a second electrode stacked in sequence, at least part of the first electrode is exposed from the pixel opening position, and the second electrode is electrically connected to the isolation structure.

[0025] In a possible implementation of the present application, at the position of the first isolation opening, the contour line of the orthographic projection of the first isolation structure on the substrate includes a first contour line, the contour line of the orthographic projection of the pixel defining layer on the substrate includes a second contour line, and there is a first distance between the corresponding first contour line and the second contour line;

[0026] At the position of the second isolation opening, the contour line of the orthographic projection of the second isolation structure on the substrate includes a third contour line, and the contour line of the orthographic projection of the pixel definition layer on the substrate includes a fourth contour line, and there is a second distance between the corresponding third contour line and the fourth contour line, wherein the first distance is smaller than the second distance.

[0027] In a possible implementation of the present application, when light-emitting devices with the same light-emitting color are accommodated in the first isolation opening and the second isolation opening, the first distance is smaller than the second distance.

[0028] In a possible implementation of the present application, a difference between the second distance and the first distance is greater than or equal to 0.5 μm.

[0029] In a possible implementation of the present application, the display panel further includes a first connecting wire, and the first connecting wire is used to connect first electrodes of at least two light-emitting devices of the same color located in the first display area together;

[0030] The first electrode is located at a side of the first connecting wire away from the substrate, and the first connecting wire is electrically connected to a pixel circuit in the substrate;

[0031] Preferably, the number of light-emitting devices of the same color connected by the first connecting wire is 2 to 6;

[0032] Preferably, the pixel circuit electrically connected to the first connecting wire is located in the second display area.

[0033] In a possible implementation of the present application, the first connecting wire is in direct contact with the corresponding first electrode;

[0034] Preferably, the material of the first connecting wire includes at least one of indium tin oxide, indium zinc oxide and indium gallium zinc oxide;

[0035] Preferably, the first electrode at least comprises a first sublayer and a second sublayer stacked in a direction away from the substrate;

[0036] Preferably, the material of the first sublayer includes silver; the material of the second sublayer includes at least one of indium tin oxide, indium zinc oxide and indium gallium zinc oxide;

[0037] Preferably, the orthographic projection of the first electrode on the substrate is at least partially located within the orthographic projection of the first connecting wire on the substrate;

[0038] Preferably, the orthographic projection of the first electrode on the substrate is located within the orthographic projection of the first connecting wire on the substrate;

[0039] Preferably, the first electrode further comprises a third sublayer, and the third sublayer is located on a side of the first sublayer facing the substrate;

[0040] Preferably, the material of the third sub-layer includes at least one of indium tin oxide, indium zinc oxide and indium gallium zinc oxide.

[0041] In a possible implementation of the present application, the display panel further includes a second connecting wire, and the second connecting wire is used to connect the first isolation structure in the first display area;

[0042] The first connecting wire and the second connecting wire are insulated;

[0043] Preferably, the first isolation structure is connected to the second connecting wire through a film layer through hole in the pixel defining layer;

[0044] Preferably, the first connecting wire and the second connecting wire are arranged in the same layer;

[0045] Preferably, the first connecting wire and the second connecting wire include transparent connecting wires;

[0046] Preferably, the first connecting wire and the second connecting wire are made of the same material;

[0047] Preferably, the material of the first connecting wire and the second connecting wire includes at least one of indium tin oxide, indium zinc oxide and indium gallium zinc oxide.

[0048] In a possible implementation of the present application, the isolation structure includes a first isolation portion and a second isolation portion that are stacked, the second isolation portion is arranged on a side of the first isolation portion that is away from the substrate, and an orthographic projection of the first isolation portion on the substrate is located within an orthographic projection of the second isolation portion on the substrate;

[0049] Preferably, the contour line of the orthographic projection of the first isolation structure on the substrate is the contour line of the orthographic projection of the second isolation part in the first isolation structure on the substrate, and the contour line of the orthographic projection of the second isolation structure on the substrate is the contour line of the orthographic projection of the second isolation part in the second isolation structure on the substrate.

[0050] In a possible implementation of the present application, the isolation structure further includes a third isolation portion, and in a direction away from the substrate, the third isolation portion, the first isolation portion, and the second isolation portion are stacked in sequence, and an orthographic projection of the first isolation portion on the substrate is located within an orthographic projection of the third isolation portion on the substrate;

[0051] Preferably, the orthographic projection of the third isolation portion on the substrate is located within the orthographic projection of the second isolation portion on the substrate;

[0052] Preferably, the material of the first isolation portion includes aluminum, silver or copper, the material of the second isolation portion includes titanium or molybdenum, and the material of the third isolation portion includes molybdenum or titanium.

[0053] In a possible implementation of the present application, the display panel further includes a light-emitting device and a first encapsulation layer; the light-emitting device is located in the isolation opening; the first encapsulation layer includes a plurality of encapsulation units for encapsulating different light-emitting devices;

[0054] Preferably, in the second display area, two adjacent encapsulation units for encapsulating light-emitting devices of different colors are disconnected on a side of the isolation structure away from the substrate, and in the first display area and the second display area, there is a gap between the encapsulation unit located on a side of the isolation structure away from the substrate and the isolation structure;

[0055] Preferably, in the second display area, two adjacent encapsulation units for encapsulating light-emitting devices of the same color are connected to each other at a side of the isolation structure away from the substrate.

[0056] In a possible implementation of the present application, the display panel further includes a second encapsulation layer;

[0057] The second encapsulation layer is located on a side of the first encapsulation layer away from the substrate, and the second encapsulation layer has a flat surface on a side away from the substrate;

[0058] Preferably, the display panel further comprises a third encapsulation layer, and the third encapsulation layer is located on a side of the second encapsulation layer away from the substrate;

[0059] Preferably, the first encapsulation layer and the third encapsulation layer are inorganic encapsulation layers, and the second encapsulation layer is an organic encapsulation layer.

[0060] A second aspect of the present application further provides an electronic device, comprising a display panel in any possible implementation manner of the first aspect.

[0061] An embodiment of the present application provides a display panel and an electronic device. In the display panel, in a first display area, different first isolation structures that enclose a first isolation opening are independently arranged on a substrate, that is, the first isolation structure is only used to form the first isolation opening. Such a design makes it possible for the area between the first isolation openings to have no first isolation structure distributed therein, thereby reducing the shading area of ​​the first isolation structure in the first display area, thereby improving the transmittance of the first display area, which is conducive to the realization of under-screen functions (such as under-screen fingerprint recognition, under-screen camera, etc.), improving the user experience, and enhancing the market competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0063] Figure 1 A schematic diagram illustrating the distribution of the first display area and the second display area provided in this embodiment is illustrated;

[0064] Figure 2 A schematic diagram illustrating the distribution of the isolation structure and the isolation openings provided in the present embodiment in the first display area and the second display area;

[0065] Figure 3 One of the cross-sectional schematic diagrams of the display panel provided by this embodiment is illustrated;

[0066] Figure 4 The second cross-sectional schematic diagram of the display panel provided by the present embodiment is illustrated;

[0067] Figure 5a Example Figure 2 One of the cross-sectional schematic diagrams at the position of the first isolation opening;

[0068] Figure 5b Example Figure 2 One of the cross-sectional schematic diagrams at the position of the second isolation opening;

[0069] Figure 6 The second cross-sectional schematic diagram of the display panel provided by the present embodiment is illustrated;

[0070] Figure 7aA schematic diagram illustrating the orthographic projection relationship between the first isolation structure and the pixel defining layer at the position of the first isolation opening is shown;

[0071] Figure 7b Example Figure 7a Schematic diagram of the cross section along the AA direction;

[0072] Figure 8a A schematic diagram illustrating the orthographic projection relationship between the second isolation structure and the pixel defining layer at the position of the second isolation opening is illustrated;

[0073] Figure 8b Example Figure 8a Schematic diagram of the cross section along the BB direction;

[0074] Fig. 9 A schematic diagram illustrating the connection between the first connecting wire provided in this embodiment and the first isolation structure in the first display area;

[0075] Fig.10 Example Figure 2 The third cross-sectional schematic diagram at the position of the first isolation opening;

[0076] Fig.11a and Fig.11b Two different cross-sectional schematic diagrams of the first connecting wire and the first electrode in the display panel provided by this embodiment are illustrated;

[0077] Fig.12 A schematic diagram illustrating the connection between the second connecting wire provided in this embodiment and the first isolation structure in the first display area is illustrated;

[0078] Fig.13 Example Figure 2 The fourth cross-sectional schematic diagram at the position of the first isolation opening;

[0079] Fig.14 A schematic diagram illustrating a structure of the isolation structure provided by this embodiment;

[0080] Fig.15 Another structural schematic diagram illustrating the isolation structure provided by this embodiment;

[0081] Fig.16 Example Figure 2 A fifth cross-sectional schematic diagram of the position of the first isolation opening;

[0082] Fig.17 Example Figure 2 The second cross-sectional schematic diagram at the position of the second isolation opening.

[0083] Icons: 1-display panel; 10A-first display area; 10B-second display area; 11-substrate; 111-first connecting wire; 112-second connecting wire; 12-isolation structure; 1201-isolation opening; 1201a-first isolation opening; 1201b-second isolation opening; 121-first isolation part; 122-second isolation part; 123-third isolation part; 13-light-emitting device; 131-first electrode; 132-light-emitting material layer; 133-second electrode; 14-pixel defining layer; 1401-pixel opening; 151-first encapsulation layer; 1511-encapsulation unit; 152-second encapsulation layer; 153-third encapsulation layer; 201-first contour line; 202-second contour line; 203-third contour line; 204-fourth contour line. DETAILED DESCRIPTION

[0084] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0085] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0086] Improving the density of light-emitting devices in a display panel (i.e., pixel density) is an important way to improve the display effect. However, the display panels currently made using fine metal evaporation mask (FMM) technology are unable to further increase the density of light-emitting devices due to technical limitations. After long-term research, the inventors found that in order to solve the technical problem that the density of light-emitting devices cannot be further increased, an isolation structure is set in some display panels. When the light-emitting material layer and the cathode are evaporated in the entire layer, the light-emitting material layer and the cathode can be disconnected at the isolation structure position. Through multiple evaporation and multiple etching processes, light-emitting devices of different colors can be formed in different isolation openings. The above process is called light-emitting device patterning.

[0087] Patent CN118251982A, patent 202410864269.8, patent PCT / CN2024 / 098407, patent PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419 and patent PCT / CN2024 / 099072 record relevant technical solutions of isolation structure (or partition structure or isolation column) and encapsulation layer, and their contents are incorporated into this application by reference for reference.

[0088] In the above display panels, in order to realize functions such as under-screen fingerprint recognition and under-screen camera, a light-transmitting display area with a higher light transmittance than the general display area is often set in the display panel, and a sensor is configured under the light-transmitting display area to realize the above functions. However, the inventors found that the realization effect of the under-screen function is not good, and there are problems such as low recognition accuracy and low camera quality, which seriously affect the user experience.

[0089] In order to solve the above problems, the inventor innovatively designed the following technical solution, and the specific implementation scheme of the present application will be described in detail below in conjunction with the accompanying drawings. It should be noted that the defects existing in the above solutions in the prior art are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above technical problems and the solutions proposed in this embodiment below for the above problems should all be the contributions made by the inventor to the present application in the process of invention and creation, and should not be understood as the technical content known to those skilled in the art.

[0090] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 The schematic diagram of the distribution of the first display area and the second display area provided by this embodiment is illustrated. Figure 2 The schematic diagram of the distribution of the isolation structure and the isolation openings provided in the present embodiment in the first display area and the second display area is illustrated. Figure 3The cross-sectional schematic diagram of the display panel is illustrated. In the present embodiment, the display panel 1 includes a first display area 10A, the display panel 1 includes a substrate 11 and an isolation structure 12, the substrate 11 is a multi-layer structure, the substrate 11 includes at least a plurality of conductive layers and an insulating layer located between adjacent conductive layers, a pixel circuit for providing a driving signal for the light-emitting device 13 is formed in the substrate 11, wherein the conductive layer may be a metal conductive layer. The isolation structure 12 is located on the substrate 11, and the isolation structure 12 encloses a plurality of isolation openings 1201 on the substrate 11. The isolation structure 12 includes a plurality of first isolation structures 12a located in the first display area 10A, and the isolation opening 1201 includes a first isolation opening 1201a, wherein the first isolation opening 1201a is formed by each first isolation structure 10A enclosed on the substrate 11. In the first display area 10A, the first isolation structure 12a is only used to enclose a first isolation opening 1201a, and the different first isolation structures 12a that enclose different first isolation openings 1201a are independently arranged on the substrate 11, that is, there is no first isolation structure 12a distributed in the area between adjacent first isolation openings 1201a, and the orthographic projections of the first isolation structures 12a that enclose different first isolation openings 1201a on the substrate 11 do not overlap.

[0091] In the above structure, in the first display area 10A, the first isolation structure 12a is only used to form the first isolation opening 1201a, and the first isolation structures 12a that enclose different first isolation openings 1201a are independently arranged on the substrate 11. Such a design makes it possible for the area between the first isolation openings 1201a to have no first isolation structure 12a distributed, thereby reducing the shading area of ​​the first isolation structure 12a in the first display area 10A, thereby improving the transmittance of the first display area 10A, which is beneficial to the realization of under-screen functions (such as under-screen fingerprint recognition, under-screen camera, etc.), improving the user experience, and enhancing the market competitiveness of the product.

[0092] In a possible implementation of this embodiment, please refer again to Figure 2 , the orthographic projection of the first isolation structure 12a on the substrate 11 is annular, and optionally, the orthographic projection of the first isolation structure 12a on the substrate 11 includes a circular ring. The inner diameters of the orthographic projections of the first isolation structures 12a on the substrate 11 may be the same or different, and preferably, the inner diameters of the orthographic projections of the first isolation structures 12a on the substrate 11 are the same.

[0093] In a possible implementation of this embodiment, please refer again to Figure 1 and Figure 2 The display panel 1 further includes a second display area 10B, which at least partially surrounds the first display area 10A. For example, Figure 1As shown, the second display area 10B surrounds the first display area 10A. It is understandable that the second display area 10B may also partially surround the first display area 10A, such as surrounding the adjacent two sides of the first display area 10A. The light transmittance of the first display area 10A is greater than that of the second display area 10B. A sensor may be configured under the first display area 10A so that the sensor obtains sufficient light signals to realize functions such as under-screen fingerprint recognition and under-screen camera.

[0094] The isolation structure 12 also includes a second isolation structure 12b located in the second display area 10B, and the isolation opening 1201 also includes a second isolation opening 1201b formed by the second isolation structure 12b on the substrate 11. In this embodiment, the positive projection of the second isolation structure 12b on the substrate 11 is a mesh, wherein the mesh holes in the mesh correspond to the second isolation opening 1201b.

[0095] In a possible implementation of this embodiment, please refer to Figure 2 and Figure 4 , the display panel 1 also includes a light-emitting device 13, and the light-emitting device 13 is located in the isolation opening 1201, that is, the orthographic projection of the light-emitting device 13 on the substrate 11 is located in the orthographic projection of the isolation opening 1201 on the substrate 11. The distribution density of the light-emitting device 13 in the first display area 10A is less than or equal to the distribution density of the light-emitting device 13 in the second display area 10B. Exemplarily, the distribution density of the light-emitting device 13 in the first display area 10A is equal to the distribution density of the light-emitting device 13 in the second display area 10B. Optionally, the light-emitting area of ​​the light-emitting device 13 of the same light-emitting color in the first display area 10A is smaller than its light-emitting area in the second display area 10B. Such a design can increase the proportion of the light-transmitting area in the first display area 10A and improve the light transmittance of the first display area 10A.

[0096] In a possible implementation of this embodiment, please refer again to Figure 2 In this embodiment, the shape of the orthographic projection of the second isolation opening 1201b on the substrate 11 is different from the shape of the orthographic projection of the first isolation opening 1201a on the substrate 11. Exemplarily, the shape of the orthographic projection of the second isolation opening 1201b on the substrate 11 includes a rectangle, and the shape of the orthographic projection of the first isolation opening 1201a on the substrate 11 includes a circle or an ellipse.

[0097] Optionally, the area of ​​the orthographic projection of the second isolation opening 1201b on the substrate 11 is larger than the area of ​​the orthographic projection of the first isolation opening 1201a on the substrate 11. In this embodiment, the sizes of the first isolation openings 1201a located in the first display area 10A may be the same or different. Preferably, the sizes of the first isolation openings 1201a located in the first display area 10A are the same.

[0098] In order to further improve the light transmittance of the first display area 10A, please refer to Figure 5a and Figure 5b In a possible implementation of this embodiment, as Figure 5a As shown, in a cross section perpendicular to the plane where the substrate 11 is located and passing through the geometric center of the first isolation opening 1201a, the orthographic projection of the first isolation structure 12a on the substrate 11 has a first size d1. Figure 5b As shown, in a cross section perpendicular to the plane of the substrate 11 and passing through the geometric center of the second isolation opening 1201b, the orthographic projection of the second isolation structure 12b on the substrate 11 has a second size d2. In this embodiment, the first size d1 is smaller than the second size d2.

[0099] The orthographic projection size d1 of the first isolation structure 12a on the substrate 11 is smaller than the orthographic projection size d2 of the second isolation structure 12b on the substrate 11. Such a design can reduce the shading area of ​​the first isolation structure 12a in the first display area 10A, which is beneficial to further improve the transmittance of the first display area 10A.

[0100] In this embodiment, the difference between the second size d2 and the first size d1 is greater than or equal to 1μm, that is, d1≤d2-1μm. By way of example, the difference between the second size d2 and the first size d1 includes 1μm, 1.05μm, 1.14μm, 1.24μm, 1.38μm, 1.51μm, 1.6μm, 1.75μm, 1.9μm, 2μm, 2.1μm, 2.26μm, 2.45μm, 2.61μm, 2.75μm, 2.9μm and 3μm, etc.

[0101] For further information, please refer to Figure 6 The display panel 1 further includes a pixel defining layer 14, which is located on one side of the substrate 11, and the isolation structure 12 is located on the side of the pixel defining layer 14 away from the substrate 11. The pixel defining layer 14 defines a pixel opening 1401 on the substrate 11, and the orthographic projection of the pixel opening 1401 on the substrate 11 is located within the orthographic projection of the isolation opening 1201 on the substrate 11. In other words, the orthographic projection of the isolation opening 1201 on the substrate 11 covers the orthographic projection of the pixel opening 1401 on the substrate 11, and the isolation opening 1201 is connected to the pixel opening 1401. The pixel defining layer 14 can be a pixel defining layer formed of an organic material, or a pixel defining layer formed of an inorganic material. When the pixel defining layer 14 is a pixel defining layer formed of an inorganic material, the pixel defining layer 14 can be a single film layer structure of silicon oxide or silicon nitride, or a multi-film layer stacked structure of silicon oxide and silicon nitride.

[0102] Please refer again Figure 6In this embodiment, the light emitting device 13 is at least partially located at the pixel opening 1401. In the direction away from the substrate 11, the light emitting device 13 includes a first electrode 131, a light emitting material layer 132 and a second electrode 133 which are stacked in sequence. The first electrodes 131 are spaced apart and distributed on one side of the substrate 11. For example, the first electrodes 131 are distributed on the substrate 11, and the pixel opening 1401 exposes at least part of the first electrode 131. The light emitting material layer 132 extends from the pixel opening 1401 to the side of the pixel defining layer 14 away from the substrate 11, and the second electrode 133 extends from the pixel opening 1401 to the side of the pixel defining layer 14 away from the substrate 11 and is electrically connected to the isolation structure 12. For example, the second electrode 133 extends from the pixel opening 1401 to the side of the pixel defining layer 14 away from the substrate 11 and overlaps the isolation structure 12, wherein the isolation structure 12 is a conductive isolation structure. For example, the first electrode 131 can be an anode of the light emitting device 13, and the second electrode 133 can be a cathode of the light emitting device 13. The isolation structure 12 can directly or indirectly connect the second electrodes 133 of adjacent light-emitting devices 13 together. By connecting the isolation structure 12 to the power signal voltage (ELVSS), the light-emitting devices 13 at different positions can have the same ELVSS voltage to improve the display uniformity of the display panel. For example, in the second display area 10B, the second electrodes 133 of adjacent light-emitting devices 13 can be directly connected together through the second isolation structure 12b; in the first display area 10A, the second electrodes 133 of adjacent light-emitting devices 13 can be connected together by connecting the independently arranged first isolation structure 12 through a conductive trace.

[0103] In this embodiment, the isolation structure 12 can enclose a plurality of isolation openings 1201. The setting of the isolation structure 12 can form film layers of light-emitting devices 13 of different colors in different isolation openings 1201 without the need for a fine metal mask, thereby reducing the manufacturing cost of the display panel. The isolation structure 12 can isolate the light-emitting material layer 132 and the second electrode 133 in the light-emitting device 13, so that different light-emitting devices 13 are independent of each other, so as to improve the crosstalk between adjacent light-emitting devices 13 and enhance the display effect. Adjacent light-emitting devices 13 can be independently packaged to improve the packaging yield. At the same time, due to the existence of the isolation structure 12, the light-emitting material layer 132 and the second electrode 133 in the light-emitting device 13 of each color in the display panel 1 can be first prepared on the entire surface and then patterned, thereby eliminating the fine metal mask to save the manufacturing cost of the display panel.

[0104] In order to further improve the light transmittance of the first display area 10A, please refer to Figure 7a , Figure 7b , Figure 8a and Figure 8bIn another possible implementation of this embodiment, please refer to Figure 7a and Figure 7b At the position of the first isolation opening 1201a, the contour line of the orthographic projection of the first isolation structure 12a on the substrate 11 includes a first contour line 201, and the contour line of the orthographic projection of the pixel definition layer 14 on the substrate 11 includes a second contour line 202. The first contour line 201 and the second contour line 202 have a first distance D1 therebetween. Figure 8a and Figure 8b , at the position of the second isolation opening 1201b, the contour line of the orthographic projection of the second isolation structure 12b on the substrate 11 includes a third contour line 203, and the contour line of the orthographic projection of the pixel definition layer 14 on the substrate 11 includes a fourth contour line 204, and there is a second distance D2 between the corresponding third contour line 203 and the fourth contour line 204, wherein the first distance D1 is smaller than the second distance D2. Such a design can reduce the area of ​​the pixel definition layer 14 that has a light shielding effect in the first isolation opening 1201a, and further improve the light transmittance of the first display area 10A.

[0105] It should be noted that the corresponding contour lines refer to the contour lines located in the same direction of the same isolation opening 1201, and the corresponding contour lines may be parallel to each other. For example, the first distance D1 between the corresponding first contour line 201 and the second contour line 202 refers to the distance between the two mutually parallel first contour lines 201 and the second contour lines 202 located in the same direction of the first isolation opening 1201a (the ring width of the circular ring). The second distance D2 between the corresponding third contour line 203 and the fourth contour line 204 refers to the distance between the two mutually parallel third contour lines 203 and the fourth contour lines 204 located on the same side of the second isolation opening 1201b (the ring width of the rectangular ring).

[0106] In this embodiment, preferably, when the light emitting devices 13 of the same light emitting color are accommodated in the first isolation opening 1201 a and the second isolation opening 1201 b , the first distance D1 is smaller than the second distance D2 .

[0107] Further, in this embodiment, the difference between the second distance D2 and the first distance D1 is greater than or equal to 0.5μm, that is, d1≤d2-0.5μm. Exemplarily, the difference between the second distance D2 and the first distance D1 includes 0.5μm, 0.55μm, 0.63μm, 0.71μm, 0.82μm, 0.94μm, 1.06μm, 1.23μm, 1.27μm, 1.34μm, 1.42μm, 1.5μm, 1.57μm or 1.6μm, etc.

[0108] Please refer to Fig. 9 and Fig.10The display panel 1 further includes a first connecting wire 111. In the first display area 10A, the first connecting wire 111 is used to connect the first electrodes 131 of at least two light-emitting devices 13 of the same color together. In detail, the first electrode 131 is located on the side of the first connecting wire 111 away from the substrate 11. The first connecting wire 111 is electrically connected to a pixel circuit (not shown in the figure) in the substrate 11, and the at least two light-emitting devices 13 of the same color connected to the first connecting wire 111 are driven by the pixel circuit to emit light simultaneously. In this way, the number of pixel circuits can be reduced and the light transmittance of the first display area 10A can be increased. The number of light-emitting devices 13 of the same color connected to the first connecting wire 111 is inversely proportional to the display effect, that is, the more the number of light-emitting devices 13 of the same color connected, the more obvious the display granularity (the worse the display effect), and the fewer the number of light-emitting devices 13 of the same color connected, the less obvious the display granularity (the better the display effect). In this embodiment, in order to ensure the display effect of the first display area 10A, optionally, the number of light-emitting devices 13 of the same color connected to the first connecting wire 111 is 2 to 6. Specifically, the number of light-emitting devices 13 of the same color connected to the first connecting wire 111 can be 2, 3, 4, 5 or 6. For example, as shown in FIG8 , the first connecting wire 111 can connect 3 light-emitting devices 13 of the same color.

[0109] Furthermore, in this embodiment, in order to further improve the light transmittance of the first display area 10A, the pixel circuit electrically connected to the first connecting wire 111 may be disposed in the second display area 10B.

[0110] Further, in this embodiment, the first connecting wire 111 is in direct contact with the corresponding first electrode 131. Optionally, the material of the first connecting wire 111 includes at least one of indium tin oxide, indium zinc oxide and indium gallium zinc oxide.

[0111] Optionally, see Fig.11a In a possible implementation of this embodiment, the first electrode 131 at least includes a first sublayer 1311 and a second sublayer 1312 stacked in a direction away from the substrate 11. The material of the first sublayer 1311 includes silver, and the material of the second sublayer 1312 includes at least one of indium tin oxide, indium zinc oxide and indium gallium zinc oxide. In the related art, the first electrode can be a three-layer structure of an oxide metal film layer / silver / oxide metal film layer. In this implementation, the first connecting wire 111 can be made of the oxide metal film layer on the side closest to the substrate 11 in the first electrode in the related art, and the first electrode 131 in this implementation is made of the remaining film layer of the first electrode in the related art.

[0112] In this embodiment, the orthographic projection of the first electrode 131 on the substrate 11 is at least partially located within the orthographic projection of the first connecting wire 111 on the substrate 11. Optionally, the orthographic projection of the first electrode 131 on the substrate 11 is entirely located within the orthographic projection of the first connecting wire 111 on the substrate 11. This can increase the contact area between the two, reduce the connection resistance, and facilitate stable signal transmission.

[0113] Optionally, see Fig.11b In another possible implementation of the present embodiment, the first electrode 131 further includes a third sublayer 1313, and the third sublayer 1313 is located on the side of the first sublayer 1311 facing the substrate 11. The material of the third sublayer 1313 includes at least one of indium tin oxide, indium zinc oxide, and indium gallium zinc oxide. In this implementation, the first electrode 131 adopts a three-layer structure in the related art, and the first connecting wire 111 is formed by additional manufacturing.

[0114] For further information, please refer to Fig.12 and Fig.13 , the display panel 1 also includes a second connecting wire 112, the second connecting wire 112 is used to connect the first isolation structure 10A in the first display area 10A. Exemplarily, the second connecting wire 112 connects all the first isolation structures 10A in the first display area 10A together. In this embodiment, the first connecting wire 111 and the second connecting wire 112 are insulated. The first isolation structure 12a is connected to the second connecting wire 112 through a film layer through hole in the pixel defining layer 14. Exemplarily, the first connecting wire 111 and the second connecting wire 112 are arranged in the same layer, and at the intersection of the first connecting wire 111 and the second connecting wire 112, the two are avoided by bridging to ensure that the first connecting wire 111 and the second connecting wire 112 are insulated. It can be understood that the first connecting wire 111 and the second connecting wire 112 can also be arranged in different layers, and the first connecting wire 111 and the second connecting wire 112 are respectively made of different film layers. In order to reduce the influence of the first connecting wire 111 and the second connecting wire 112 on the light transmittance of the first display area 10A, in the present embodiment, the first connecting wire 111 and the second connecting wire 112 include transparent connecting wires, and the materials of the first connecting wire 111 and the second connecting wire 112 can be the same. Exemplarily, the material of the first connecting wire 111 and the second connecting wire 112 includes at least one of indium tin oxide, indium zinc oxide and indium gallium zinc oxide.

[0115] Please refer to Fig.14, in the direction away from the substrate 11, the isolation structure 12 includes a first isolation portion 121 and a second isolation portion 122 arranged in a stacked manner, wherein the orthographic projection of the first isolation portion 121 on the substrate 11 is located within the orthographic projection of the second isolation portion 122 on the substrate 11. That is, in the direction toward the isolation opening 1201, the second isolation portion 122 extends relative to the first isolation portion 121. On a cross section perpendicular to the plane where the substrate 11 is located and passing through the geometric center of the isolation opening 1201, the cross section of the isolation structure 12 may be T-shaped. In this embodiment, the second electrode 133 is connected to the first isolation portion 121, wherein the first isolation portion 121 is a conductive isolation portion. In this embodiment, the contour line of the orthographic projection of the first isolation structure 12a on the substrate 11 is the contour line of the orthographic projection of the second isolation portion 122 in the first isolation structure 12a on the substrate 11, and the contour line of the orthographic projection of the second isolation structure 12b on the substrate 11 is the contour line of the orthographic projection of the second isolation portion 122 in the second isolation structure 12b on the substrate 11.

[0116] For further information, please refer to Fig.15 , the isolation structure 12 also includes a third isolation portion 123, the third isolation portion 123 is located on the side of the first isolation portion 121 facing the substrate 11, the orthographic projection of the first isolation portion 121 on the substrate 11 is located within the orthographic projection of the third isolation portion 123 on the substrate 11, and the orthographic projection of the third isolation portion 123 on the substrate 11 is located within the orthographic projection of the second isolation portion 122 on the substrate 11. On the cross section perpendicular to the plane where the substrate 11 is located and passing through the geometric center of the isolation opening 1201, the cross section of the isolation structure 12 may be I-shaped. In this embodiment, the second electrode 133 may also be connected to the third isolation portion 123, wherein the third isolation portion 123 may also be a conductive isolation substrate.

[0117] In this embodiment, the material of the first isolation portion 121 includes aluminum, silver or copper, the material of the second isolation portion 122 includes titanium or molybdenum, and the material of the third isolation portion 123 includes molybdenum or titanium.

[0118] For further information, please refer to Fig.16 and Fig.17In this embodiment, the display panel 1 further includes a first encapsulation layer 151, and the first encapsulation layer 151 includes a plurality of encapsulation units 1511. Different encapsulation units 1511 are used to encapsulate the light-emitting devices 13 in different isolation openings 1201, and each encapsulation unit 1511 is used to independently encapsulate the light-emitting devices 13 in at least one isolation opening 1201. In the second display area 10B, when the light-emitting devices 13 in adjacent isolation openings 1201 are light-emitting devices of the same color, two adjacent encapsulation units 1511 are connected on the side of the isolation structure 12 away from the substrate 11. In the second display area 10B, when the light-emitting devices 13 in adjacent second isolation openings 1201b are light-emitting devices of different colors, two adjacent encapsulation units 1511 are disconnected on the side of the isolation structure 12 away from the substrate 11. In the first display area 10A and the second display area 10B, there is a gap between the encapsulation unit 1511 located on the side of the isolation structure 12 away from the substrate 11 and the isolation structure 14.

[0119] Please refer again Fig.16 and Fig.17 , the display panel 1 also includes a second encapsulation layer 152 and a third encapsulation layer 153, the second encapsulation layer 152 covers the isolation structure 12 and the light-emitting device 13, and the side of the second encapsulation layer 152 away from the substrate 11 includes a flat surface. The third encapsulation layer 153 is located on the side of the second encapsulation layer 152 away from the substrate 11. Among them, the first encapsulation layer 151 and the third encapsulation layer 153 are inorganic encapsulation layers, and the second encapsulation layer 152 is an organic encapsulation layer. For example, the first encapsulation layer 151 and the third encapsulation layer 153 can be formed by chemical vapor deposition (Chemical Vapor Deposition, CVD), and the second encapsulation layer 152 can be formed by inkjet printing (Ink-jet Printing, IJP). The first encapsulation layer 151, the second encapsulation layer 152 and the third encapsulation layer 153 form a thin film encapsulation structure of the display panel 1.

[0120] It is understandable that the display panel 1 may also include a touch function layer, an optical adhesive layer, a polarizer, a cover plate and other film layers stacked in sequence on the side of the third packaging layer 153 away from the substrate 11. The above film layers are conventional film layers of the display panel and will not be described in detail here.

[0121] Based on the same inventive concept, an embodiment of the present application also provides an electronic device, which includes the display panel provided in the present application, or includes a display panel prepared by the display panel preparation method provided in the present embodiment. The electronic device may include a smart phone, a tablet computer, a vehicle-mounted display device, a smart wearable device, a television, a laptop computer, and other devices with a display function.

[0122] An embodiment of the present application provides a display panel and an electronic device. In the display panel, in a first display area, different first isolation structures that enclose a first isolation opening are independently arranged on a substrate, that is, the first isolation structure is only used to form the first isolation opening. Such a design makes it possible for the area between the first isolation openings to have no first isolation structure distributed therein, thereby reducing the shading area of ​​the first isolation structure in the first display area, thereby improving the transmittance of the first display area, which is conducive to the realization of under-screen functions (such as under-screen fingerprint recognition, under-screen camera, etc.), improving the user experience, and enhancing the market competitiveness of the product.

[0123] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that: The display panel includes a first display area, and the display panel further includes: substrate; An isolation structure is located on one side of the substrate, the isolation structure encloses an isolation opening, the isolation structure includes a plurality of first isolation structures located in the first display area, the isolation opening includes a first isolation opening correspondingly enclosed by each of the first isolation structures on the substrate, wherein the different first isolation structures enclosed to form the first isolation opening are independently arranged on the substrate.

2. The display panel according to claim 1, wherein: The orthographic projection of the first isolation structure on the substrate is a ring; Preferably, the orthographic projection of the first isolation structure on the substrate includes a circular ring shape; Preferably, the inner diameters of the orthographic projections of the first isolation structures on the substrate are the same.

3. The display panel according to claim 1, wherein: The first display area is at least partially surrounded by the second display area, and the light transmittance of the first display area is greater than that of the second display area. The isolation structure further includes a second isolation structure located in the second display area; and the isolation opening further includes a second isolation opening formed by the second isolation structure on the substrate. Preferably, the orthographic projection of the second isolation structure located in the second display area on the substrate is in a mesh shape.

4. The display panel according to claim 3, wherein: On a cross section perpendicular to the plane where the substrate is located and passing through the geometric center of the first isolation opening, the orthographic projection of the first isolation structure on the substrate has a first size; In a cross section perpendicular to the plane where the substrate is located and passing through the geometric center of the second isolation opening, the orthographic projection of the second isolation structure on the substrate has a second size, wherein the first size is smaller than the second size.

5. The display panel according to claim 4, wherein: A difference between the second size and the first size is greater than or equal to 1 μm.

6. The display panel according to claim 3, wherein: The display panel further comprises a light emitting device, wherein the light emitting device is located in the isolation opening; Preferably, the distribution density of the light emitting devices in the first display area is less than or equal to the distribution density of the light emitting devices in the second display area; Preferably, the light emitting area of ​​the light emitting device with the same light emitting color in the first display area is smaller than the light emitting area in the second display area.

7. The display panel according to claim 3, wherein: The shape of the orthographic projection of the second isolation opening on the substrate is different from the shape of the orthographic projection of the first isolation opening on the substrate; Preferably, the shape of the orthographic projection of the second isolation opening on the substrate includes a rectangle, and the shape of the orthographic projection of the first isolation opening on the substrate includes a circle or an ellipse; Preferably, an area of ​​an orthographic projection of the second isolation opening on the substrate is larger than an area of ​​an orthographic projection of the first isolation opening on the substrate; Preferably, the first isolation openings located in the first display area have the same size.

8. The display panel according to any one of claims 3 to 7, characterized in that: The display panel further comprises a pixel defining layer, wherein the pixel defining layer is located on one side of the substrate, and the isolation structure is located on a side of the pixel defining layer away from the substrate; The pixel definition layer defines a pixel opening on the substrate, and the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the isolation opening on the substrate; Preferably, a light-emitting device is provided in the pixel opening. In the direction away from the substrate, the light-emitting device includes a first electrode, a light-emitting material layer and a second electrode stacked in sequence, at least part of the first electrode is exposed from the pixel opening position, and the second electrode is electrically connected to the isolation structure.

9. The display panel according to claim 8, wherein: At the position of the first isolation opening, the contour line of the orthographic projection of the first isolation structure on the substrate includes a first contour line, the contour line of the orthographic projection of the pixel definition layer on the substrate includes a second contour line, and there is a first distance between the first contour line and the second contour line; At the position of the second isolation opening, the contour line of the orthographic projection of the second isolation structure on the substrate includes a third contour line, and the contour line of the orthographic projection of the pixel definition layer on the substrate includes a fourth contour line, and there is a second distance between the corresponding third contour line and the fourth contour line, wherein the first distance is smaller than the second distance.

10. The display panel according to claim 9, wherein: When light emitting devices of the same light emitting color are accommodated in the first isolation opening and the second isolation opening, the first distance is smaller than the second distance.

11. The display panel according to claim 9, wherein: A difference between the second distance and the first distance is greater than or equal to 0.5 μm.

12. The display panel according to claim 8, wherein: The display panel further comprises a first connecting wire, wherein the first connecting wire is used to connect first electrodes of at least two light emitting devices of the same color located in the first display area together; The first electrode is located at a side of the first connecting wire away from the substrate, and the first connecting wire is electrically connected to a pixel circuit in the substrate; Preferably, the number of light-emitting devices of the same color connected by the first connecting wire is 2 to 6; Preferably, the pixel circuit electrically connected to the first connecting wire is located in the second display area.

13. The display panel according to claim 12, wherein: The first connecting wire is in direct contact with the corresponding first electrode; Preferably, the material of the first connecting wire includes at least one of indium tin oxide, indium zinc oxide and indium gallium zinc oxide; Preferably, the first electrode at least comprises a first sublayer and a second sublayer stacked in a direction away from the substrate; Preferably, the material of the first sublayer includes silver; the material of the second sublayer includes at least one of indium tin oxide, indium zinc oxide and indium gallium zinc oxide; Preferably, the orthographic projection of the first electrode on the substrate is at least partially located within the orthographic projection of the first connecting wire on the substrate; Preferably, the orthographic projection of the first electrode on the substrate is located within the orthographic projection of the first connecting wire on the substrate; Preferably, the first electrode further comprises a third sublayer, and the third sublayer is located on a side of the first sublayer facing the substrate; Preferably, the material of the third sub-layer includes at least one of indium tin oxide, indium zinc oxide and indium gallium zinc oxide.

14. The display panel according to claim 12, wherein: The display panel further includes a second connecting wire, wherein the second connecting wire is used to connect the first isolation structure in the first display area; The first connecting wire and the second connecting wire are insulated; Preferably, the first isolation structure is connected to the second connecting wire through a film layer through hole in the pixel defining layer; Preferably, the first connecting wire and the second connecting wire are arranged in the same layer; Preferably, the first connecting wire and the second connecting wire include transparent connecting wires; Preferably, the first connecting wire and the second connecting wire are made of the same material; Preferably, the material of the first connecting wire and the second connecting wire includes at least one of indium tin oxide, indium zinc oxide and indium gallium zinc oxide.

15. The display panel according to claim 9, wherein: The isolation structure comprises a first isolation portion and a second isolation portion which are stacked, wherein the second isolation portion is arranged on a side of the first isolation portion away from the substrate, and an orthographic projection of the first isolation portion on the substrate is located within an orthographic projection of the second isolation portion on the substrate; Preferably, the contour line of the orthographic projection of the first isolation structure on the substrate is the contour line of the orthographic projection of the second isolation part in the first isolation structure on the substrate, and the contour line of the orthographic projection of the second isolation structure on the substrate is the contour line of the orthographic projection of the second isolation part in the second isolation structure on the substrate.

16. The display panel according to claim 1, wherein: The isolation structure includes a first isolation portion and a second isolation portion which are stacked, wherein the second isolation portion is arranged on a side of the first isolation portion away from the substrate, and an orthographic projection of the first isolation portion on the substrate is located within an orthographic projection of the second isolation portion on the substrate.

17. The display panel according to claim 16, wherein: The isolation structure further includes a third isolation portion, wherein in a direction away from the substrate, the third isolation portion, the first isolation portion and the second isolation portion are sequentially stacked, and an orthographic projection of the first isolation portion on the substrate is located within an orthographic projection of the third isolation portion on the substrate; Preferably, the orthographic projection of the third isolation portion on the substrate is located within the orthographic projection of the second isolation portion on the substrate; Preferably, the material of the first isolation portion includes aluminum, silver or copper, the material of the second isolation portion includes titanium or molybdenum, and the material of the third isolation portion includes molybdenum or titanium.

18. The display panel according to any one of claims 3 to 7, characterized in that: The display panel further comprises a light emitting device and a first encapsulation layer; the light emitting device is located in the isolation opening; the first encapsulation layer comprises a plurality of encapsulation units for encapsulating different light emitting devices; Preferably, in the second display area, two adjacent encapsulation units for encapsulating light-emitting devices of different colors are disconnected on a side of the isolation structure away from the substrate, and in the first display area and the second display area, there is a gap between the encapsulation unit located on a side of the isolation structure away from the substrate and the isolation structure; Preferably, in the second display area, two adjacent encapsulation units for encapsulating light-emitting devices of the same color are connected to each other at a side of the isolation structure away from the substrate.

19. The display panel according to claim 18, wherein: The display panel further includes a second encapsulation layer; The second encapsulation layer is located on a side of the first encapsulation layer away from the substrate, and the second encapsulation layer has a flat surface on a side away from the substrate; Preferably, the display panel further comprises a third encapsulation layer, and the third encapsulation layer is located on a side of the second encapsulation layer away from the substrate; Preferably, the first encapsulation layer and the third encapsulation layer are inorganic encapsulation layers, and the second encapsulation layer is an organic encapsulation layer.

20. An electronic device, characterized in that: The electronic device comprises the display panel according to any one of claims 1-19.

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