Display panel, preparation method of display panel and display device

Abstract

The invention relates to a display panel, a preparation method of the display panel and a display device. The display panel comprises a substrate, a first isolation structure and a first light-emitting part, wherein the first isolation structure is arranged on one side of the substrate and forms a first isolation opening in a surrounding mode, the first light-emitting part is arranged on one side of the substrate and corresponds to the first isolation opening, and the first light-emitting part comprises a first electrode, a first light-emitting part and a second electrode which are arranged in a stacked mode in the direction away from the substrate; at least part of the orthographic projection outer contour of the first electrode on the substrate is located in the orthographic projection range of the first isolation opening on the substrate. According to the display panel, the first electrode is shrunk in the first isolation opening enclosed by the first isolation structure, so that the part between the first electrode and the first isolation structure can also transmit light, the problem of insufficient light transmission caused by the independent design of the first isolation structure is solved, the light transmittance of the UDC area can be improved, and the display effect is improved. And the transmittance of the display panel is further improved.

Description

Technical Field

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

[0002] The functional display area (Under Display Camera, UDC) on an OLED (Organic Light Emitting Diode) display panel usually reduces the light-emitting area of ​​the pixel and uses a metal film layer between the pixels to connect multiple pixels together for driving, so as to improve the transmittance of the UDC area.

[0003] However, the display effect of the UDC area on the current OLED display panel is not good. Summary of the invention

[0004] Based on this, it is necessary to provide a display panel, a method for preparing a display panel, and a display device that can improve the display effect in order to solve the above technical problems.

[0005] In a first aspect, the present application provides a display panel, comprising:

[0006] substrate;

[0007] A first isolation structure is disposed on one side of the substrate; the first isolation structure encloses a first isolation opening;

[0008] A first light-emitting component is arranged on one side of the substrate and corresponds to the first isolation opening; the first light-emitting component includes a first electrode, a first light-emitting portion and a second electrode stacked in a direction away from the substrate; at least part of the orthographic projection outer contour of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate.

[0009] The display panel provided in the embodiment of the present application shrinks the first electrode within the first isolation opening enclosed by the first isolation structure so that there is a certain space between the boundary of the first electrode corresponding to the first isolation opening in the first light-emitting element and the first isolation structure. In this way, the portion between the first electrode and the first isolation structure will also be able to transmit light, thereby compensating for the problem of insufficient light transmission caused by excessive light shading due to the independent design of the first isolation structure, thereby improving the light transmittance of the light-transmitting area, thereby improving the transmittance of the display panel, and improving the display effect of the display panel.

[0010] In one embodiment, the display panel has a first display area and a second display area located at least on one side of the first display area, the transmittance of the first display area is greater than the transmittance of the second display area; the first isolation structure and the first light-emitting element are located in the first display area;

[0011] Optionally, the display panel further includes:

[0012] A second isolation structure is disposed on one side of the substrate and located in the second display area, the second isolation structure enclosing a light-transmitting hole and a plurality of second isolation openings;

[0013] The second isolation structure also encloses the first display area, and the second display area further includes a light-transmitting hole at least partially surrounding the first isolation structure;

[0014] A plurality of second light-emitting elements are disposed on one side of the substrate and are disposed corresponding to the plurality of second isolation openings;

[0015] Optionally, the display panel includes a plurality of first isolation structures and a plurality of first light-emitting elements, the plurality of first isolation structures are arranged at intervals in the first display, and the plurality of first light-emitting elements are arranged corresponding to the first isolation openings of the plurality of first isolation structures;

[0016] Optionally, each of the first isolation structures encloses and forms one first isolation opening;

[0017] Optionally, an orthographic projection area of ​​the first isolation opening on the substrate is smaller than an orthographic projection area of ​​the second isolation opening on the substrate.

[0018] In one embodiment, the orthographic projection outer contour of the first electrode on the substrate is located within the orthographic projection outer contour of the first isolation structure on the substrate;

[0019] Optionally, the first electrode includes a first electrode portion and a second electrode portion, the orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate, and the orthographic projection of the second electrode portion on the substrate overlaps with the orthographic projection of the first isolation structure on the substrate;

[0020] Optionally, the orthographic projection of the first electrode portion on the substrate has a first edge, the first edge is located at a side of the first electrode portion away from the second electrode portion, the orthographic projection of the isolation structure on the substrate is at a second edge close to the first isolation opening, and the distance between the first edge and the second edge is greater than or equal to 0 micrometers;

[0021] Optionally, the orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate;

[0022] Optionally, a distance between an orthographic projection edge of the first electrode on the substrate and an orthographic projection edge of the isolation structure on the substrate close to a side of the isolation opening is greater than 0 micrometer.

[0023] In one embodiment, the display panel further includes a plurality of connecting members, and the connecting members are electrically connected to at least two of the first electrodes;

[0024] Optionally, the connecting member is connected to at least two of the first light-emitting members having the same light-emitting color;

[0025] Optionally, the display panel includes a plurality of the first light-emitting elements, and the plurality of first light-emitting elements include a plurality of first color light-emitting elements, a plurality of second color light-emitting elements, and a plurality of third color light-emitting elements; the connecting element of each first color light-emitting element is connected to the connecting element of at least one adjacent first color light-emitting element; the connecting element of each second color light-emitting element is connected to the connecting element of at least one adjacent second color light-emitting element; and the connecting element of each third color light-emitting element is connected to the connecting element of at least one adjacent third color light-emitting element.

[0026] In one embodiment, the connecting member includes an electrode connecting portion, the electrode connecting portion is connected to the first electrode, the orthographic projection of the electrode connecting portion on the substrate partially overlaps with the orthographic projection of the first isolation structure on the substrate, and part of the orthographic projection of the electrode connecting portion on the substrate is located outside the outer contour of the orthographic projection of the first isolation structure on the substrate;

[0027] Optionally, the connecting member further comprises a connecting wire, wherein the connecting wire of each first color light emitting member is connected to the connecting wire of at least one adjacent first color light emitting member; the connecting wire of each second color light emitting member is connected to the connecting wire of at least one adjacent second color light emitting member; and the connecting wire of each third color light emitting member is connected to the connecting wire of at least one adjacent third color light emitting member;

[0028] Optionally, the electrode connection portion of each first color light-emitting element is connected to the electrode connection portion of at least one adjacent first color light-emitting element through a first connection line; the electrode connection portion of each second color light-emitting element is connected to the electrode connection portion of at least one adjacent second color light-emitting element through a second connection line; the electrode connection portion of each third color light-emitting element is connected to the electrode connection portion of at least one adjacent third color light-emitting element through a third connection line;

[0029] Optionally, the electrode connecting portion is arranged in the same layer as the first electrode, and at least part of the electrode connecting portion is arranged around the first electrode;

[0030] Optionally, the electrode connecting portion is arranged in the same layer as the first electrode, and the electrode connecting portion is arranged around the first electrode;

[0031] Optionally, the electrode connecting portion is arranged on a side of the first electrode close to the substrate, the orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the electrode connecting portion on the substrate, and the electrode connecting portion is in contact and connected with a side of the first electrode close to the substrate;

[0032] Optionally, the electrode connecting portion is arranged on a side of the first electrode facing away from the substrate, the orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the electrode connecting portion on the substrate, and the electrode connecting portion is in contact and connected with the side of the first electrode facing away from the substrate;

[0033] Optionally, the orthographic projection of the first isolation structure on the substrate is a first orthographic projection, and the part of the orthographic projection of the electrode connecting part on the substrate located outside the first orthographic projection is a second orthographic projection; a distance between an edge of a side of the second orthographic projection away from the first orthographic projection and an edge of a side of the first orthographic projection away from the first isolation opening is greater than 0.5 microns.

[0034] In one embodiment, the connecting member is made of a transparent conductive material;

[0035] Optionally, the material of the connecting member includes indium tin oxide.

[0036] In one embodiment, the first isolation structure comprises a first isolation body and a first blocking portion stacked in a direction away from the substrate, the orthographic projection of the first blocking portion on the substrate covers the orthographic projection of the first isolation body on the substrate, and the orthographic projection outer contour of the first blocking portion on the substrate is located at the periphery of the orthographic projection outer contour of the first isolation body on the substrate;

[0037] Optionally, the second isolation structure comprises a second isolation body and a second blocking portion stacked in a direction away from the substrate, the orthographic projection of the second blocking portion on the substrate covers the orthographic projection of the second isolation body on the substrate, and the orthographic projection outer contour of the second blocking portion on the substrate is located at the periphery of the orthographic projection outer contour of the second isolation body on the substrate;

[0038] Optionally, the first electrode includes a first electrode portion and a second electrode portion, an orthographic projection of the first electrode portion on the substrate is located on a side of an orthographic projection of the first blocking portion on the substrate close to the first isolation opening, and a distance between an orthographic projection edge of the first electrode portion on the substrate and an orthographic projection edge of the first blocking portion on the substrate is greater than or equal to 0 micrometers;

[0039] Optionally, the orthographic projection of the second electrode portion on the substrate is located within the orthographic projection range of the first blocking portion on the substrate;

[0040] Optionally, the orthographic projection of the second electrode portion on the substrate overlaps with the orthographic projection of the first blocking portion on the substrate, and is partially located within the orthographic projection range of the first isolator on the substrate;

[0041] Optionally, the first isolation structure and the second isolation structure are arranged at the same layer;

[0042] Optionally, the first isolator and the second isolator are arranged in the same layer;

[0043] Optionally, the first blocking portion and the second blocking portion are arranged in the same layer.

[0044] In one embodiment, the display panel further comprises a pixel defining layer disposed on one side of the substrate; the pixel defining layer encloses a plurality of pixel holes, the plurality of pixel holes are respectively disposed corresponding to the first isolation openings, and the pixel holes are connected to the first isolation openings, and the orthographic projection of the pixel holes on the substrate is located within the orthographic projection range of the first isolation opening on the substrate;

[0045] Optionally, the pixel defining layer is also located on a side of the first electrode facing away from the substrate, and the pixel hole exposes a portion of the first electrode;

[0046] Optionally, the orthographic projection of the pixel hole on the substrate is located within the orthographic projection range of the first electrode on the substrate, and the orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate.

[0047] In one of the embodiments, the display panel further includes an encapsulation layer disposed on a side of the second electrode and the first isolation structure facing away from the substrate, and an orthographic projection of the encapsulation layer on the substrate covers an orthographic projection of the second electrode on the substrate.

[0048] In a second aspect, an embodiment of the present application provides a display panel, including:

[0049] substrate;

[0050] A first isolation structure is disposed on one side of the substrate; the first partition structure encloses a first isolation opening;

[0051] A first light-emitting element is disposed on one side of the substrate and is disposed corresponding to the first isolation opening; the first light-emitting element comprises a first electrode, a first light-emitting portion, and a second electrode stacked and arranged in a direction away from the substrate; an outer contour of an orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate;

[0052] The display panel has a first display area and a second display area located at at least one side of the first display area, and the light transmittance of the first display area is greater than the light transmittance of the second display area.

[0053] The first isolation structure and the first light-emitting element are located in the first display area; optionally, the display panel further includes:

[0054] A second isolation structure is disposed on one side of the substrate and located in the second display area, and the second isolation structure encloses a plurality of second isolation openings;

[0055] The second isolation structure also encloses the first display area, and the second display area further includes a light-transmitting hole at least partially surrounding the first isolation structure;

[0056] A plurality of second light-emitting elements are disposed on one side of the substrate and are disposed corresponding to the plurality of second isolation openings;

[0057] Optionally, the display panel includes a plurality of first isolation structures and a plurality of first light-emitting elements, the plurality of first isolation structures are arranged in the light-transmitting hole at intervals, and the plurality of first light-emitting elements are arranged corresponding to the first isolation openings of the plurality of first isolation structures;

[0058] Optionally, each of the first isolation structures encloses and forms one first isolation opening;

[0059] Optionally, an orthographic projection area of ​​the first isolation opening on the substrate is smaller than an orthographic projection area of ​​the second isolation opening on the substrate.

[0060] In one embodiment, the orthographic projection outer contour of the first electrode on the substrate is located within the orthographic projection outer contour of the first isolation structure on the substrate;

[0061] Optionally, the first electrode includes a first electrode portion and a second electrode portion, the orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate, and the orthographic projection of the second electrode portion on the substrate overlaps with the orthographic projection of the first isolation structure on the substrate;

[0062] Optionally, the orthographic projection of the first electrode portion on the substrate has a first edge, the first edge is located on the side of the first electrode portion facing away from the second electrode portion, the orthographic projection of the isolation structure on the substrate is at a second edge close to the first isolation opening, and the distance between the first edge and the second edge is greater than or equal to 0 microns.

[0063] The display panel provided in the embodiment of the present application shrinks the first electrode within the first isolation opening enclosed by the first isolation structure so that there is a certain space between the boundary of the first electrode corresponding to the first isolation opening in the first light-emitting element and the first isolation structure. In this way, the portion between the first electrode and the first isolation structure will also be able to transmit light, thereby compensating for the problem of insufficient light transmission caused by excessive light shading due to the independent design of the first isolation structure, thereby improving the light transmittance of the light-transmitting area, thereby improving the transmittance of the display panel, and improving the display effect of the display panel.

[0064] In a third aspect, an embodiment of the present application provides a display panel, including:

[0065] substrate;

[0066] A first isolation structure is disposed on one side of the substrate; the first partition structure encloses a first isolation opening;

[0067] A plurality of first light-emitting elements are arranged on one side of the substrate, and each of the first light-emitting elements is arranged corresponding to the first isolation opening; the first light-emitting element comprises a first electrode, a first light-emitting portion, and a second electrode which are stacked and arranged in a direction away from the substrate; an outer contour of an orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate;

[0068] A plurality of connectors, wherein the connectors are electrically connected to at least two of the first light-emitting elements having the same light-emitting color; the orthographic projection of the first isolation structure on the substrate is located in a part of the orthographic projection of the connector on the substrate is located within the range of the outer contour;

[0069] In one embodiment, the connecting member includes an electrode connecting portion, the electrode connecting portion is connected to the first electrode, the orthographic projection of the electrode connecting portion on the substrate partially overlaps with the orthographic projection of the first isolation structure on the substrate, and part of the orthographic projection of the electrode connecting portion on the substrate is located outside the outer contour of the orthographic projection of the first isolation structure on the substrate;

[0070] Optionally, the connecting member further comprises connecting wires, and the connecting wires of the first light-emitting members having the same luminous color are connected to each other;

[0071] Optionally, the electrode connecting portion is arranged in the same layer as the first electrode, and at least part of the electrode connecting portion is arranged around the first electrode;

[0072] Optionally, the electrode connecting portion is arranged on a side of the first electrode close to the substrate, the orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the electrode connecting portion on the substrate, and the electrode connecting portion is in contact and connected with a side of the first electrode close to the substrate;

[0073] Optionally, the orthographic projection of the first isolation structure on the substrate is a first orthographic projection, and the part of the orthographic projection of the electrode connecting part on the substrate located outside the first orthographic projection is a second orthographic projection; a distance between an edge of a side of the second orthographic projection away from the first orthographic projection and an edge of a side of the first orthographic projection away from the first isolation opening is greater than 0.5 microns.

[0074] The display panel in the above-mentioned embodiment is provided with a connector in the display panel, and the electrode connecting portion of the connector is extended to the periphery of the first isolation structure. Since over-engraving problems are likely to occur in the peripheral area of ​​the first isolation structure, the connecting lines connected to the adjacent light-emitting elements are likely to be disconnected. Thus, the electrode connecting portion of the connector is extended, and the extended electrode connecting portion forms a circle in the peripheral area. Even if part of the electrode connecting portion in the peripheral area is disconnected, the connecting lines of the adjacent light-emitting elements can be connected by other electrode connecting portions extending in the circle, thereby improving the dark spot problem caused by over-engraving damage to the pixel definition layer. In addition, the capacitance of the first electrode in the first display area can be increased to match the capacitance of the first electrode in the second display area, thereby improving the poor display phenomenon in the first display area and the second display area under grayscale, thereby improving the display effect of the display panel.

[0075] In a fourth aspect, an embodiment of the present application provides a method for manufacturing a display panel, the method comprising:

[0076] providing a substrate;

[0077] A first isolation structure is formed on one side of the substrate; the first partition structure encloses a first isolation opening;

[0078] A first light-emitting component is formed on one side of the substrate; the first light-emitting component is arranged corresponding to the first isolation opening; the first light-emitting component includes a first electrode, a first light-emitting portion and a second electrode stacked in a direction away from the substrate; at least part of the orthographic projection outer contour of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate.

[0079] In one embodiment, the method further comprises:

[0080] A second isolation structure is formed on one side of the substrate; the second isolation structure encloses a plurality of second isolation openings, and the second isolation structure also encloses a first display area including the first isolation structure.

[0081] In one embodiment, the method further comprises:

[0082] Optionally, a connecting member is formed on one side of the substrate, and the connecting member is connected to at least two of the first light-emitting members having the same light-emitting color;

[0083] Optionally, before forming the first light-emitting element on one side of the substrate, the connecting element is formed on a side of the first electrode close to the substrate;

[0084] Optionally, the connecting member is formed on a side of the first electrode facing away from the substrate.

[0085] In one embodiment, the method further comprises:

[0086] forming a pixel definition layer on one side of the substrate, and patterning the pixel definition layer to form a plurality of pixel openings, wherein the pixel openings expose a portion of the first electrode;

[0087] A packaging layer is formed on a side of the second electrode away from the substrate.

[0088] In a fifth aspect, an embodiment of the present application provides a display device, comprising the display panel of the first aspect, or the display panel of the second aspect, or the display panel of the third aspect, or a display panel formed by the preparation method of the fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0089] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0090] Figure 1 One of the top views of the display panel provided in the embodiment of the present application;

[0091] Figure 2 A second top view of the display panel provided in an embodiment of the present application;

[0092] Figure 3 A third top view of the display panel provided in an embodiment of the present application;

[0093] Figure 4One of the partial cross-sectional views of the display panel provided in the embodiment of the present application;

[0094] Figure 5 A second partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0095] Figure 6 A third partial cross-sectional view of the display panel provided in an embodiment of the present application;

[0096] Figure 7 A fourth top view of the display panel provided in an embodiment of the present application;

[0097] Figure 8 A fourth partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0098] Fig. 9 A fifth partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0099] Fig.10 A sixth partial cross-sectional view of the display panel provided in an embodiment of the present application;

[0100] Fig.11 One of the bottom views of the display panel provided in the embodiment of the present application;

[0101] Fig.12 A seventh partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0102] Fig.13 A second bottom view of the display panel provided in an embodiment of the present application;

[0103] Fig.14 A third bottom view of the display panel provided in an embodiment of the present application;

[0104] Fig.15 A fourth bottom view of the display panel provided in an embodiment of the present application;

[0105] Fig.16 An eighth partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0106] Fig.17 A fifth bottom view of the display panel provided in an embodiment of the present application;

[0107] Fig.18 A fifth top view of the display panel provided in an embodiment of the present application;

[0108] Fig.19 A ninth partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0109] Fig. 20 A tenth partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0110] Fig.21 A sixth top view of the display panel provided in an embodiment of the present application;

[0111] Fig. 22 A seventh top view of the display panel provided in an embodiment of the present application;

[0112] Fig.23 A ninth partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0113] Fig.24 A tenth partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0114] Fig.25 The eleventh partial cross-sectional view of the display panel provided in the embodiment of the present application;

[0115] Fig.26 The twelfth partial cross-sectional view of the display panel provided in the embodiment of the present application;

[0116] Fig. 27 The thirteenth partial cross-sectional view of the display panel provided in the embodiment of the present application;

[0117] Fig.28 One of the schematic flow charts of the method for preparing a display panel provided in an embodiment of the present application;

[0118] Fig.29 A second schematic flow chart of a method for manufacturing a display panel provided in an embodiment of the present application;

[0119] Fig.30 A third schematic flow chart of a method for manufacturing a display panel provided in an embodiment of the present application;

[0120] Fig.31 A fourth flow chart of a method for manufacturing a display panel provided in an embodiment of the present application;

[0121] Description of reference numerals:

[0122] 1. Display panel; 10. First display area; 20. Second display area; 12. First isolation structure; 12a. First isolation opening; 12b. Light-transmitting hole 14; Second isolation structure; 14a. Second isolation opening; 13. First light-emitting element; 13a. First electrode 13a; 13b. First light-emitting portion; 13c. Second electrode 13c; 13b1. First light-emitting sub-portion; 13b2. Second light-emitting sub-portion; 13b3. Third light-emitting sub-portion; 13c1. First sub-electrode; 13c2. Second sub-electrode; 13c3. Third sub-electrode; 13 a1, fourth sub-electrode; 13a2, fifth sub-electrode; 13a3, sixth sub-electrode; 15, second light-emitting element; 15a, third electrode; 15c, fourth electrode; 15b, second light-emitting portion; 16, connecting element; 13d1, first color light-emitting element; 13d2, second color light-emitting element; 13d3, third color light-emitting element; 16a, electrode connecting portion; 16b, connecting line; 12c, first insulator; 12d, first blocking portion; 14c, second insulator; 14d, second blocking portion; 17, pixel defining layer; 18, encapsulation layer. DETAILED DESCRIPTION

[0123] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0124] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, they do not represent any order, quantity or importance, but are only used to distinguish different components. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the present application, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0125] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0126] Organic Light Emitting Diode (OLED) display technology is regarded as the most promising new flat panel display technology for the next generation. Compared with liquid crystal display technology, OLED display technology has the advantages of low energy consumption, low cost, self-luminescence, wide viewing angle and fast response speed. However, see Figure 1 The OLED display panel 1 includes an under display camera area (UDC) 10 and a normal pixel display area 20. In order to improve the transmittance at the UDC area 10, the light emitting area of ​​the pixel is usually reduced in the UDC area 10, and a plurality of pixels are connected together for driving using tin-doped indium oxide (ITO) wires between the pixels. For example, see Figure 2 The UDC region 10 includes a plurality of pixel light-emitting regions 12a and light-transmitting regions 12b, and the light-emitting regions 12a of the same color are connected together by a tin-doped indium oxide wire 16b for driving. However, since the VSS isolation column corresponding to the light-emitting region of each pixel in the UDC region is independently designed, the light shielding rate is insufficient, making it difficult for the transmittance of the UDC region to meet the specification; moreover, dark spots are easily displayed on the pixel definition layer under the VSS isolation column in the UDC region, and the display is uneven at low grayscale, resulting in poor display effect of the display panel.

[0127] In view of at least one of the above problems, the embodiments of the present application provide a display panel, a method for manufacturing a display panel, and a display device, which can improve the transmittance of the UDC area, improve the display dark spots, reduce the Mura phenomenon, and thus improve the display effect of the display panel.

[0128] First, refer to Figure 1 , Figure 2 , Figure 3As shown in FIG4 , the embodiment of the present application provides a display panel 1, which may be an organic light-emitting diode (OLED) display panel, a micro organic light-emitting diode (MicroOLED) display panel, a light emitting diode (LED) display panel, a quantum dot light emitting diode (QLED) display panel, a mini light emitting diode (Mini LED) display panel, a micro light emitting diode (Micro LED) display panel, or a liquid crystal (LCD) display panel. The embodiment of the present application is described by taking an OLED display panel as an example.

[0129] The UDC region 10 on the display panel 1 provided in the embodiment of the present application is described below.

[0130] See also Figure 1 The present application embodiment provides a display panel 1, which may include a first display area 10, see Figure 2 , the first display area 10 (also called the light-transmitting display area or the under-screen camera area 10) on the display panel 1 can be provided with an under-screen functional device on one side of the backlight surface of the display panel 1, and the under-screen functional device can include any one or more of a camera, a fingerprint reader, an iris reader, and a distance sensor. The under-screen functional device is provided on the backlight surface side of the display panel 1 of the first display area 10. On the one hand, the display panel 1 of the first display area 10 can display the image normally to ensure that the display panel 1 has a high screen-to-body ratio. On the other hand, the first display area 10 has good light transmittance so that light can reach the under-screen functional device.

[0131] For example, Figure 2 As shown, the first display area 10 may further include a first isolation opening 12a and a light-transmitting hole 12b, and the first isolation opening 12a and the light-transmitting hole 12b are arranged adjacent to each other. Figure 1 As shown, the display panel 1 may further include a second display area 20 (also called a normal pixel display area), wherein the second display area 20 includes a second isolation opening 14 a.

[0132] It should be noted that the display panel 1 may include only a light-transmitting display area, but no normal pixel display area. The embodiment of the present application is described by taking the light-transmitting display area and the normal pixel display area as an example. Figure 2 is a partial schematic diagram of the first display area 10, Figure 3 It is a partial schematic diagram of the second display area 20 and is only used as an example for description.

[0133] See also Figure 4 The partial cross-sectional view of the first display area 10 shown in the figure, the embodiment of the present application provides a display panel 1, which includes a substrate 11; a first isolation structure 12, which is arranged on one side of the substrate 11; the first isolation structure 12 encloses a first isolation opening 12a; a plurality of first light-emitting elements 13, which are arranged on one side of the substrate 11 and corresponding to the first isolation opening 12a; the first light-emitting element 13 includes a first electrode 13a, a first light-emitting portion 13b and a second electrode 13c stacked in a direction away from the substrate 11; at least part of the orthographic projection outer contour of the first electrode 13a on the substrate 11 is located within the orthographic projection range of the first isolation opening 12a on the substrate 11.

[0134] In some embodiments, the substrate 11 may provide support for other film layers that are subsequently disposed.

[0135] In some embodiments, the first isolation structure 12 may refer to an undercut structure that is larger on top and smaller on the bottom and can separate adjacent first light emitting elements 13. The first isolation structure 12 may be a structure formed by a single film layer or a structure formed by stacking multiple film layers.

[0136] Exemplarily, the cross-sectional shape of the first isolation structure 12 may be an inverted trapezoid, a T-shape, an I-shape, or the like, which is “large at the top and small at the bottom”.

[0137] In some embodiments, one of the first electrode 13a and the second electrode 13c may be an anode, and the other of the first electrode 13a and the second electrode 13c may be a cathode. The present embodiment is described by taking the first electrode 13a as an anode and the second electrode 13c as a cathode.

[0138] In some embodiments, the first electrode 13a may be electrically connected to a pixel driving circuit, and the pixel driving circuit may be electrically connected to a first power line. The second electrode 13c may be electrically connected to a second power line. One of the first power line and the second power line is used to transmit a high voltage, and the other is used to transmit a low voltage. For example, the first power line is used to transmit a high voltage, and the second power line is used to transmit a low voltage.

[0139] In some embodiments, the first display area 10 may include multiple first light-emitting elements 13, and the above-mentioned first light-emitting portion 13b may include light-emitting portions with different light-emitting colors. The first display area 10 may also include multiple first isolation openings 12a, and the first light-emitting elements 13 of different colors are at least partially arranged in the first isolation openings 12a.

[0140] In some embodiments, there may be a plurality of first light emitting portions 13b, and the plurality of first light emitting portions 13b may be arranged in an array. Correspondingly, there may be a plurality of at least one of the first light emitting portion 13b, the first electrode 13a, and the second electrode 13c.

[0141] In some embodiments, the first light-emitting portion 13b may include an emission layer (EML). The first light-emitting portion 13b may also include a hole injection layer (HIL), a hole transport layer (HTL), an electron injection layer (EIL), an electron transport layer (ETL), a hole blocking layer (HBL) and an electron blocking layer (EBL). Alternatively, the first light-emitting portion 13b may also be a stacked light-emitting structure, that is, including at least two light-emitting layers and a charge generation layer (CGL) located between each adjacent light-emitting layer.

[0142] In some embodiments, the plurality of first light-emitting sections 13b include but are not limited to a first light-emitting subsection, a second light-emitting subsection, and a third light-emitting subsection that emit different colors of light. For example, the first light-emitting subsection, the second light-emitting subsection, and the third light-emitting subsection may be a red light-emitting subsection, a green light-emitting subsection, and a blue light-emitting subsection, respectively. In other examples, the plurality of first light-emitting sections 13b may also include a white light-emitting subsection. Figure 5 The first light-emitting portion 13b includes a first light-emitting sub-portion 13b1, a second light-emitting sub-portion 13b2, and a third light-emitting sub-portion 13b3.

[0143] For example, see Figure 5The first light-emitting portion 13b includes a first light-emitting sub-portion 13b1, a second light-emitting sub-portion 13b2, and a third light-emitting sub-portion 13b3; the multiple second electrodes 13c include a first sub-electrode 13c1, a second sub-electrode 13c2 and a third sub-electrode 13c3, the first sub-electrode 13c1 is correspondingly arranged on the side of the first light-emitting sub-portion 13b1 away from the substrate 11, the second sub-electrode 13c2 is correspondingly arranged on the side of the second light-emitting sub-portion 13b2 away from the substrate 11, and the third sub-electrode 13c3 is correspondingly arranged on the side of the third light-emitting sub-portion 13b3 away from the substrate 11. The multiple first electrodes 13a include a fourth sub-electrode 13a1, a fifth sub-electrode 13a2 and a sixth sub-electrode 13a3. The fourth sub-electrode 13a1 is correspondingly arranged on the side of the first light-emitting sub-portion 13b1 close to the substrate 11, the fifth sub-electrode 13a2 is correspondingly arranged on the side of the second light-emitting sub-portion 13b2 close to the substrate 11, and the sixth sub-electrode 13a3 is correspondingly arranged on the side of the third light-emitting sub-portion 13b3 close to the substrate 11.

[0144] In some embodiments, at least part of the orthographic projection outer contour of the first electrode 13a on the substrate 11 is located within the orthographic projection range of the first isolation opening 12a on the substrate 11. Figure 6 In the partial cross-sectional view of the first display area 10 shown, it is assumed that the distance between the boundary of the first electrode 13a and the boundary of the first isolation opening 12a is b, and when at least part of the orthographic projection outer contour of the first electrode 13a on the substrate 11 is located within the orthographic projection range of the first isolation opening 12a on the substrate 11, b>0um is satisfied. Optionally, the distance between part of the boundary of the first electrode 13a and the boundary of the first isolation opening 12a is b; optionally, the distance between all the boundaries of the first electrode 13a and the boundary of the first isolation opening 12a is b. The subsequent embodiments will specifically describe these cases.

[0145] The display panel described in the above embodiment, by limiting the first electrode to the first isolation opening enclosed by the first isolation structure, allows a certain space between the boundary of the first electrode corresponding to the first isolation opening in the first light-emitting element and the first isolation structure. In this way, the portion between the first electrode and the first isolation structure will also be able to transmit light, thereby compensating for the problem of insufficient light transmission caused by excessive light shading due to the independent design of the first isolation structure, thereby improving the transmittance of the UDC area, and further improving the transmittance of the display panel.

[0146] In some embodiments, see Figure 7 and Figure 8As shown, the display panel has a first display area 10 and a second display area 20 located at least on one side of the first display area, the transmittance of the first display area 10 is greater than the transmittance of the second display area 20; the first isolation structure 12 and the first light-emitting element 13 are located in the first display area 10; optionally, the display panel further includes: a second isolation structure 14, which is arranged on one side of the substrate 11 and is located in the second display area 20, and the second isolation structure 14 encloses a plurality of second isolation openings 14a; the second isolation structure 14 also encloses the first display area 10, and the second display area 20 also includes a transparent light-emitting element 13 at least partially surrounding the first isolation structure 12. light hole 12b; multiple second light-emitting elements 15 are arranged on one side of the substrate 11 and are arranged corresponding to the multiple second isolation openings 14a; optionally, the display panel includes multiple first isolation structures 12 and multiple first light-emitting elements 13, multiple first isolation structures 12 are arranged in the first display area 10 at intervals, and multiple first light-emitting elements 13 are arranged corresponding to the first isolation openings 12a of the multiple first isolation structures 12; optionally, each first isolation structure 12 encloses a first isolation opening 12a; the orthographic projection area of ​​the first isolation opening 12a on the substrate 11 is smaller than the orthographic projection area of ​​the second isolation opening 14a on the substrate 11. It should be noted that, Figure 7 and Figure 8 These are examples only, especially Figure 8 The middle light-transmitting hole 12 b only shows two first isolation openings 12 a and two second isolation openings 14 a , and the number of each is not limited.

[0147] Optionally, the second light-emitting element 15 is arranged on one side of the substrate 11 and corresponds to the second isolation opening 14a; the second light-emitting element 15 includes a third electrode 15a, a second light-emitting portion 15b and a fourth electrode 15c stacked in a direction away from the substrate 11; the orthographic projection of the third electrode 15a on the substrate 11 can overlap with the orthographic projection of the second isolation opening 14a on the substrate 11, and can also be located within the range of the orthographic projection of the second isolation opening 14a on the substrate 11.

[0148] In some embodiments, the second isolation structure 14 may refer to an undercut structure that is larger on top and smaller on the bottom and can separate adjacent second light-emitting elements 15. The second isolation structure 14 may be a structure formed by a single film layer or a structure formed by stacking multiple film layers.

[0149] Exemplarily, the cross-sectional shape of the second isolation structure 14 may be an inverted trapezoid, a T-shape, an I-shape, or the like, which is “large at the top and small at the bottom”.

[0150] In some embodiments, one of the third electrode 15a and the fourth electrode 15c may be an anode, and the other of the third electrode 15a and the fourth electrode 15c may be a cathode. The present embodiment is described by taking the third electrode 15a as an anode and the fourth electrode 15c as a cathode as an example.

[0151] In some embodiments, the third electrode 15a can be electrically connected to the pixel driving circuit, and the pixel driving circuit can be electrically connected to the first power line. The fourth electrode 15c can be electrically connected to the second power line. One of the first power line and the second power line is used to transmit a high voltage, and the other is used to transmit a low voltage. For example, the first power line is used to transmit a high voltage, and the second power line is used to transmit a low voltage.

[0152] In some embodiments, the first electrode 13a can be electrically connected to the third electrode 15a, and the second electrode 13c can be electrically connected to the fourth electrode 15c. The positive projection area of ​​the third electrode 15a in the second display area 20 on the substrate 11 is larger than the area of ​​the first electrode 13a in the first display area, thereby ensuring the light-emitting area in the second display area 20 and improving the pixel opening ratio of the display panel.

[0153] In some embodiments, the second display area 20 may include multiple second light-emitting elements 15, and the above-mentioned second light-emitting portion 15b may include light-emitting portions with different light-emitting colors. The second display area 20 may also include multiple second isolation openings 14a, and the second light-emitting elements 15 of different colors are at least partially arranged in the second isolation openings 14a.

[0154] In some embodiments, the second light-emitting portion 15b may include an emission layer (EML). The second light-emitting portion 15b may also include a hole injection layer (HIL), a hole transport layer (HTL), an electron injection layer (EIL), an electron transport layer (ETL), a hole blocking layer (HBL) and an electron blocking layer (EBL). Alternatively, the second light-emitting portion 15b may also be a stacked light-emitting structure, that is, including at least two light-emitting layers and a charge generation layer (CGL) located between each adjacent light-emitting layer.

[0155] In some embodiments, the plurality of second light-emitting sections 15b include but are not limited to a first light-emitting subsection, a second light-emitting subsection, and a third light-emitting subsection having different light-emitting colors. For example, the first light-emitting subsection, the second light-emitting subsection, and the third light-emitting subsection may be a red light-emitting subsection, a green light-emitting subsection, and a blue light-emitting subsection, respectively. In other examples, the plurality of second light-emitting sections 15b may also include a white light-emitting subsection.

[0156] In some embodiments, the positional arrangement relationship between the first electrode 13, the first isolation structure 12 and the first isolation opening 12a is described. The first type is: see Fig. 9 As shown, the orthographic projection outer contour of the first electrode 13 a on the substrate 11 is located within the orthographic projection outer contour D of the first isolation structure 12 on the substrate 11 .

[0157] The second is: See Fig.10 and Fig.11 As shown, the first electrode 13a includes a first electrode portion 13a1 and a second electrode portion 13a2, the orthographic projection of the first electrode 13a on the substrate 11 is located within the orthographic projection range of the first isolation opening 12a on the substrate 11, and the orthographic projection of the second electrode portion 13a2 on the substrate 11 is overlapped with the orthographic projection of the first isolation structure 12 on the substrate 11, that is, the orthographic projection outer contour of the first electrode portion 13a1 of the first electrode 13a on the substrate 11 is located within the orthographic projection outer contour of the first isolation opening 12a on the substrate 11, and the orthographic projection outer contour of the second electrode portion 13a2 of the first electrode 13a on the substrate 11 is located outside the orthographic projection outer contour of the first isolation opening 12a on the substrate 11.

[0158] Optionally, the orthographic projection of the first electrode portion 13a1 on the substrate 11 has a first edge, the first edge is located on the side of the first electrode portion 13a1 away from the second electrode portion 13a2, the orthographic projection of the first isolation structure 12 on the substrate 11 has a second edge on the side close to the first isolation opening 12a, and the distance between the first edge and the second edge is greater than 0 micrometers; based on this, for example, see Fig.10 , Fig.11 (a bottom view of a first isolation structure 12, which does not include the substrate 11), Fig.12 , Fig.13 (a bottom view of a first isolation structure 12, which does not include the substrate 11), Fig.14 (a bottom view of a first isolation structure 12, which does not include the substrate 11), Fig.15(A bottom view of a first isolation structure 12, which does not include the substrate 11); wherein, the distance between the first edge of the first electrode portion 13a1 of the first electrode 13a located in the first isolation opening 12a and the second edge of the first isolation opening 12a is b1, and the maximum distance of b1 is >0um, and the minimum distance is also >0um; the boundary of the second electrode portion 13a2 of the first electrode 13a located in the first isolation opening 12a overlaps with the boundary of the first isolation opening 12a; therefore, there is no light-shielding component in the gap between the first edge of the first electrode portion 13a1 and the boundary of the first isolation opening 12a, but there is a light-emitting component that can transmit light, so the transmittance can be increased through the gap. The boundary of the second electrode portion 13a extends to the boundary of the first isolation opening 12a or outside, so that a part of the gap in the entire first isolation opening 12a can transmit light, which is compared with the light-shielding problem of a completely independent first isolation opening, thereby improving the display effect of the display panel. It should be noted that Fig.11 and Fig.13 Along the horizontal arrangement direction of the first isolation structure 12, the boundary of the first electrode portion 13a1 is confined within the first isolation opening 12a; Fig.14 and Fig.15 Along the vertical arrangement direction of the first isolation structure 12 , the boundary of the first electrode portion 13 a 1 is confined within the first isolation opening 12 a .

[0159] The third type is: See Fig.16 and Fig.17 , the orthographic projection of the first electrode 13a on the substrate 11 is located within the orthographic projection range of the first isolation opening 12a on the substrate 11. Optionally, the distance between the orthographic projection edge of the first electrode 13a on the substrate 11 and the orthographic projection edge of the first isolation structure 12 on the substrate 11 near the first isolation opening 12a is greater than 0 micrometers, wherein the distance between the edge of the first electrode 13a near the first isolation opening 12a and the edge of the first isolation opening 12a is b1, and b1 can be a maximum distance>0um, or a minimum distance>0um, and the distances between the edges of the first electrodes 13a near the first isolation opening 12a at different positions and the edges of the first isolation opening 12a can be the same or different, that is, the entire boundary of the first electrode 13a is confined within the first isolation opening 12a, so that there is a large gap between the boundary of the first electrode 13a and the boundary of the first isolation opening 12a, and there is no light-shielding component in the gap, and there is a light-emitting component that can transmit light, so the light transmittance can be increased through the gap, compared with the light-shielding problem of the completely independent isolation structure, it is improved, thereby improving the display effect of the display panel.

[0160] In some embodiments, another display panel is provided, see Fig.18 The top view and Fig.19The cross-sectional view shown ( Fig.19 Taking two light-emitting elements of the same color as an example for explanation), the display panel further includes a plurality of connecting elements 16; the connecting elements 16 are electrically connected to at least two first electrodes 13a.

[0161] Optionally, the connecting member 16 is connected to at least two first light-emitting members 13 having the same light-emitting color.

[0162] Optionally, the display panel includes a plurality of first light-emitting elements 13, the plurality of first light-emitting elements 13 include a plurality of first color light-emitting elements 13d1, a plurality of second color light-emitting elements 13d2, and a plurality of third color light-emitting elements 13d3; the connecting element 16 of each first color light-emitting element 13d1 is connected to the connecting element 16 of at least one adjacent first color light-emitting element 13d1; the connecting element 16 of each second color light-emitting element 13d2 is connected to the connecting element 16 of at least one adjacent second color light-emitting element 13d2; the connecting element 16 of each third color light-emitting element 13d3 is connected to the connecting element 16 of at least one adjacent third color light-emitting element 13d3. The connecting element 16 may be a linear structure or a structure of other shapes, and is used to connect light-emitting elements of the same color and drive them together, so as to improve the transmittance of the first display area 10.

[0163] In some embodiments, see Fig. 20 , a connecting member 16 is provided, the connecting member 16 includes an electrode connecting portion 16a; the electrode connecting portion 16a is connected to the first electrode 13a, the orthographic projection of the electrode connecting portion 16a on the substrate 11 partially overlaps with the orthographic projection of the first isolation structure 12 on the substrate 11, and the orthographic projection of part of the electrode connecting portion 16a on the substrate 11 is located outside the outer contour of the orthographic projection of the first isolation structure 12 on the substrate. Fig.21 In the top view, the boundary of the electrode connection portion 16a extends to the periphery of the orthographic projection of the first isolation structure 12 on the substrate 11, and the extension length is set to d1, d1>0um, preferably, d1>0.5um; the extension length is set to d2, d2>0um, preferably, d2>0.5um. Optionally, the connector 16 is a transparent conductive material, and the material of the connector 16 can be tin-doped indium oxide (Indium tin oxide, ITO), or other conductive materials.

[0164] In some embodiments, see Fig. 22 ( Fig. 22Taking two first light-emitting elements 13 of the same color as an example), based on the connecting element 16 in this embodiment, the electrode connecting portion 16a of each first color light-emitting element 13d1 is connected to the electrode connecting portion 16a of at least one adjacent first color light-emitting element 13d1 through a first connecting line; the electrode connecting portion 16a of each second color light-emitting element 13d2 is connected to the electrode connecting portion 16a of at least one adjacent second color light-emitting element 13d2 through a second connecting line; the electrode connecting portion 16a of each third color light-emitting element 13d3 is connected to the electrode connecting portion 16a of at least one adjacent third color light-emitting element 13d3 through a third connecting line. The first connecting line, the second connecting line, and the third connecting line can be Fig. 22 It is particularly noted that the connector 16 involved in the embodiment of the present application is a connector without a connector line.

[0165] In some embodiments, see Fig. 22 ( Fig. 22 Taking two first light-emitting elements 13 of the same color as an example, another connecting element 16 is provided, and the connecting element 16 also includes a connecting wire 16b, and each connecting wire 16b of the first color light-emitting element 13d1 is connected to the connecting wire 16b of at least one adjacent first color light-emitting element 13d1; each connecting wire 16b of the second color light-emitting element 13d2 is connected to the connecting wire 16b of at least one adjacent second color light-emitting element 13d2; each connecting wire 16b of the third color light-emitting element 13d3 is connected to the connecting wire 16b of at least one adjacent third color light-emitting element 13d1. It is particularly noted that the connecting element 16 involved in the embodiment of the present application is a connecting element with a connecting wire.

[0166] In some embodiments, the electrode connecting portion 16a and the first electrode 13a can be arranged in several different ways. Fig. 20 and Fig.21 ( Fig.21 for Fig. 20 ), the electrode connecting portion 16a is arranged in the same layer as the first electrode 13a, and at least part of the electrode connecting portion 16a is arranged around the first electrode 13a; optionally, the electrode connecting portion 16a is arranged around the first electrode 13a; and part of the electrode connecting portion 16a extends to the periphery of the positive projection of the first isolation structure 12 on the substrate 11, Fig. 20 and Fig.21 The length of an extended portion of the middle electrode connecting portion 16a is d1, wherein d1>0um, preferably, d1>0.5um; Fig.23 The length of another extended portion of the middle electrode connecting portion 16a is d2, and d2>0um, preferably, d2>0.5um; it can be understood that Fig. 20 and Fig.21This is a description of the horizontal direction. In the vertical direction, the length of one extended portion of the electrode connecting portion 16a is d1, and d1>0um, preferably, d1>0.5um; the length of another extended portion of the electrode connecting portion 16a is d2, and d2>0um, preferably, d2>0.5um. In addition, Fig. 20 and Fig.21 In the example, the lengths of d1 and d2 can be the same or different.

[0167] In some embodiments, see Fig.23 The electrode connecting portion 16a is disposed on a side of the first electrode 13a close to the substrate 11, and the orthographic projection of the first electrode 13a on the substrate 11 is located within the orthographic projection range of the electrode connecting portion 16a on the substrate 11, and the electrode connecting portion 16a is in contact with and connected to a side of the first electrode 13a close to the substrate 11; equivalently, part of the electrode connecting portion 16a extends to the periphery of the orthographic projection of the first isolation structure 12 on the substrate 11, Fig.23 The length of an extended portion of the middle electrode connecting portion 16a is d1, wherein d1>0um, preferably, d1>0.5um; Fig.23 The length of another extended portion of the middle electrode connecting portion 16a is d2, and d2>0um, preferably, d2>0.5um; it can be understood that Fig.23 It is an illustration of the horizontal direction. In the vertical direction, the length of an extended portion of the electrode connecting portion 16a is d1, and d1>0um, preferably, d1>0.5um; Fig.23 The length of another extended portion of the middle electrode connecting portion 16a is d2, and d2>0um, preferably, d2>0.5um. Fig.23 In the example, the lengths of d1 and d2 can be the same or different.

[0168] In some embodiments, see Fig.24 , the electrode connecting portion 16a is arranged on the side of the first electrode 13a away from the substrate 11, and the orthographic projection of the first electrode 13a on the substrate 11 is located within the orthographic projection range of the electrode connecting portion 16a on the substrate 11, and the electrode connecting portion 16a is in contact with and connected to the side of the first electrode 13a away from the substrate 11; equivalently, part of the electrode connecting portion 16a extends to the periphery of the orthographic projection of the first isolation structure 12 on the substrate 11, Fig.24 The length of an extended portion of the middle electrode connecting portion 16a is d1, wherein d1>0um, preferably, d1>0.5um; Fig.24 The length of another extended portion of the middle electrode connecting portion 16a is d2, and d2>0um, preferably, d2>0.5um; it can be understood that Fig.23It is an illustration of the horizontal direction. In the vertical direction, the length of an extended portion of the electrode connecting portion 16a is d1, and d1>0um, preferably, d1>0.5um; Fig.24 The length of another extended portion of the middle electrode connecting portion 16a is d2, and d2>0um, preferably, d2>0.5um. Fig.23 In the example, the lengths of d1 and d2 can be the same or different.

[0169] In some embodiments, see Fig. 20 , Fig.21 , Fig. 22 , Fig.23 , Fig.24 , the orthographic projection of the first isolation structure 12 on the substrate 11 is the first orthographic projection, and the part of the orthographic projection of the electrode connection part 16a on the substrate 11 located outside the first orthographic projection is the second orthographic projection; the distance between the side edge of the second orthographic projection away from the first orthographic projection and the side edge of the first orthographic projection away from the first isolation opening 12a is greater than 0.5 microns. That is, the boundary of the electrode connection part 16a extends to the periphery of the orthographic projection of the first isolation structure 12 on the substrate 11, and the extension length is set to d1, d1>0um, preferably, d1>0.5um; or, the extension length is set to d2, d2>0um, preferably, d2>0.5um. Optionally, the connector 16 is made of a transparent conductive material; optionally, the material of the connector 16 includes tin-doped indium oxide (Indium tin oxide, ITO), or other conductive materials.

[0170] In the above-mentioned embodiment, a connector is provided in the display panel, and the electrode connecting portion of the connector is extended to the periphery of the first isolation structure. Since over-engraving is likely to occur in the peripheral area of ​​the first isolation structure, the connecting line connected to the adjacent light-emitting element is likely to be disconnected. Thus, by extending the electrode connecting portion of the connector, and the extended electrode connecting portion forms a circle in the peripheral area, even if the connecting line is disconnected in the peripheral area, the connecting line of the adjacent light-emitting element can be connected by the electrode connecting portion extending in the circle, which can improve the dark spot problem caused by over-engraving damage to the connecting line. In addition, the capacitance of the first electrode in the first display area can be increased to match the capacitance of the second electrode in the second display area, thereby improving the Mura phenomenon under grayscale and improving the display effect of the display panel.

[0171] The first isolation structure 12 in the first display area 10 on the display panel 1 provided in the embodiment of the present application is described below.

[0172] For example, see Fig.25The first isolation structure 12 includes a first isolation body 12c and a first blocking portion 12d stacked in a direction away from the substrate 11, the orthographic projection of the first blocking portion 12d on the substrate 11 covers the orthographic projection of the first isolation body 12c on the substrate 11, and the orthographic projection outer contour of the first blocking portion 12d on the substrate 11 is located outside the orthographic projection outer contour of the first isolation body 12c on the substrate 11; the second electrode 13c is electrically connected to the first isolation body 12c;

[0173] See also Figures 10 to 15 , the first isolation opening 12a is defined by the first blocking portion 12d, and the first electrode 13a is composed of the first electrode portion 13a1 and the second electrode portion 13a2, the orthographic projection of the first electrode portion 13a1 on the substrate 11 is located on a side of the orthographic projection of the first blocking portion 12d on the substrate 11 close to the first isolation opening 12a, and the distance between the orthographic projection edge of the first electrode portion 13a1 on the substrate 11 and the orthographic projection edge of the first blocking portion 12d on the substrate is greater than or equal to 0 micrometers;

[0174] See also Fig.16 , 17 The orthographic projection of the second electrode portion 13a2 on the substrate 11 is located within the orthographic projection range of the first blocking portion 12d on the substrate.

[0175] In some embodiments, the first isolation body 12c may include at least one metal layer;

[0176] In some embodiments, the first isolator 12c may include a first metal layer and a second metal layer stacked in a direction away from the substrate 11, and the outer contour of the orthographic projection of the first metal layer on the substrate 11 is located outside the outer contour of the orthographic projection of the second metal layer on the substrate 11. Thus, the first partition structure 12 forms an "I"-shaped structure, that is, the first partition structure 12 has a "roof" and a "chassis", so that in the process of forming a light-transmitting opening, the first partition structure 12 can separate two adjacent light-transmitting openings, and can also separate two adjacent first isolation openings.

[0177] For example, the first partition structure 12 may refer to an undercut structure that is larger on top and smaller on the bottom and can partition adjacent light-transmitting openings. The first partition structure 12 may also be a structure formed by a single film layer, or a structure formed by stacking multiple film layers.

[0178] Exemplarily, the cross-sectional shape of the first partition structure 12 may be an inverted trapezoid, a T-shape, an I-shape, or the like, which is “large at the top and small at the bottom”.

[0179] Exemplarily, the material of at least one of the first insulator 12c and the first blocking portion 12d may be a conductive material. The material of at least one of the first insulator 12c and the first blocking portion 12d may include metals such as titanium, silver, copper, aluminum, molybdenum, or alloys, or conductive oxides, such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), aluminum zinc oxide (AZO), zinc gallium oxide, titanium tantalum oxide, tin oxide, cadmium oxide, indium oxide, any one or more. For example, the first partition structure 12 may be a partition structure of a ground wire, i.e., a VSS partition structure. In other examples, the material of at least one of the first insulator 12c and the first blocking portion 12d may be an insulating material, which is not limited in the embodiments of the present application.

[0180] For example, the material of the first insulator 12c may include at least one of titanium and molybdenum.

[0181] For example, the material of the second metal layer in the first spacer 12c may include at least one of aluminum, copper, and silver.

[0182] For example, the material of the second metal layer in the first separator 12c may include at least one of titanium and molybdenum.

[0183] In an embodiment where at least one of the first metal layer, the second metal layer and the first barrier 12d is made of a conductive material, the second electrode 13c of the first light emitting element 13 may be electrically connected to the first insulator 12c. In this way, the second electrode 13c is conveniently electrically connected to the second power line through the first insulator 12c, thereby optimizing the wiring arrangement of the display panel 1.

[0184] In the embodiment where the material of the second metal layer is a conductive material, the second electrode 13c can be electrically connected to the second metal layer. In this way, the second electrodes 13c located in each isolation opening can be connected into a whole through the second metal layer and connected to the second power line to apply a power supply voltage to the second electrode, thereby optimizing the wiring arrangement of the display panel 1.

[0185] In the embodiment where the material of the first metal layer is a conductive material, the second electrode 13c may be electrically connected to the first metal layer. In this way, each second electrode 13c may be connected to the second power line through the first metal layer, thereby optimizing the wiring arrangement of the display panel 1.

[0186] In an embodiment where the materials of the first metal layer and the second metal layer are both conductive materials, the second electrode 13c may be electrically connected to at least one of the first metal layer and the second metal layer, thereby optimizing the wiring arrangement of the display panel 1. For example, the second electrode 13c is connected to both the first metal layer and the second metal layer, thereby improving the connection stability between the second electrode 13c and the first isolation structure 12. One of the first electrode 13a and the second electrode 13c may be an anode, and the other of the first electrode 13a and the second electrode 13c may be a cathode. The embodiment of the present application is described by taking the first electrode 13a as an anode and the second electrode 13c as a cathode as an example.

[0187] The second isolation structure 14 in the second display area 20 on the display panel 1 provided in the embodiment of the present application is described below.

[0188] For example, see Fig. 22 The second isolation structure 14 includes a second isolation body 14c and a second blocking portion 14d stacked in a direction away from the substrate 11, the orthographic projection of the second blocking portion 14d on the substrate 11 covers the orthographic projection of the second isolation body 14c on the substrate 11, and the orthographic projection outer contour of the second blocking portion 14d on the substrate 11 is located outside the orthographic projection outer contour of the second isolation body 14c on the substrate 11; the fourth electrode 15c is electrically connected to the second isolation body 14c;

[0189] In some embodiments, the second isolation body 14c may include at least one metal layer;

[0190] In some embodiments, the second isolation body 14c may include a third metal layer and a fourth metal layer stacked in a direction away from the substrate 11, and the outer contour of the orthographic projection of the third metal layer on the substrate 11 is located outside the outer contour of the orthographic projection of the fourth metal layer on the substrate 11. Thus, the second isolation structure 14 forms an "I"-shaped structure, that is, the second isolation structure 14 has a "roof" and a "chassis", so that in the process of forming a light-transmitting opening, the second isolation structure 14 can separate two adjacent light-transmitting openings, and can also separate two adjacent second isolation openings.

[0191] Exemplarily, the second isolation structure 14 may refer to an undercut structure that is larger on top and smaller on the bottom and can isolate adjacent light-transmitting openings. The second isolation structure 14 may also be a structure formed by a single film layer, or a structure formed by stacking multiple film layers.

[0192] Exemplarily, the cross-sectional shape of the second isolation structure 14 may be an inverted trapezoid, a T-shape, an I-shape, or the like, which is “large at the top and small at the bottom”.

[0193] Exemplarily, the material of at least one of the second isolator 14c and the second blocking portion 14d may be a conductive material. The material of at least one of the second isolator 14c and the second blocking portion 14d may include metals such as titanium, silver, copper, aluminum, molybdenum, or alloys, or conductive oxides, such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), aluminum zinc oxide (AZO), zinc gallium oxide, titanium tantalum oxide, tin oxide, cadmium oxide, indium oxide, any one or more. For example, the second isolation structure 14 may be a ground isolation structure, i.e., a VSS isolation structure. In other examples, the material of at least one of the second isolator 14c and the second blocking portion 14d may be an insulating material, which is not limited in the embodiments of the present application.

[0194] For example, the material of the second insulator 14c may include at least one of titanium and molybdenum.

[0195] For example, the material of the third metal layer in the second spacer 14c may include at least one of aluminum, copper, and silver.

[0196] For example, the material of the fourth metal layer in the second spacer 14c may include at least one of titanium and molybdenum.

[0197] In the embodiment where at least one of the third metal layer, the fourth metal layer, and the second barrier 14d is made of a conductive material, the fourth electrode 15c of the second light emitting element 15 can be electrically connected to the second insulator 14c. In this way, the fourth electrode 15c can be electrically connected to the second power line through the second insulator 14c, thereby optimizing the wiring arrangement of the display panel 1.

[0198] In the embodiment where the material of the fourth metal layer is a conductive material, the fourth electrode 15c may be electrically connected to the fourth metal layer. In this way, the second electrodes 15c located in each isolation opening may be connected into a whole through the fourth metal layer and connected to the second power line to apply a power supply voltage to the fourth electrode 15c, thereby optimizing the wiring arrangement of the display panel 1.

[0199] In the embodiment where the material of the third metal layer is a conductive material, the fourth electrode 15c may be electrically connected to the third metal layer. Thus, each fourth electrode 15c may be connected to the second power line through the third metal layer, thereby optimizing the wiring arrangement of the display panel 1.

[0200] In an embodiment where the materials of the third metal layer and the fourth metal layer are both conductive materials, the fourth electrode 15c can be electrically connected to at least one of the third metal layer and the fourth metal layer, so as to optimize the wiring arrangement of the display panel 1. For example, the fourth electrode 15c is connected to both the third metal layer and the fourth metal layer, so as to improve the connection stability between the fourth electrode 15c and the second isolation structure 14. One of the third electrode 15a and the fourth electrode 15c can be an anode, and the other of the third electrode 15a and the fourth electrode 15c can be a cathode. The embodiment of the present application is described by taking the third electrode 15a as an anode and the fourth electrode 15c as a cathode as an example.

[0201] Optionally, Fig.25 The first isolation structure 12 and Fig.26 The second isolation structure 14 is arranged in the same layer; optionally, Fig.25 The first isolator 12c and Fig.26 The second isolator 14c is arranged in the same layer; optionally, Fig.25 The first blocking portion 12d and Fig.26 The second blocking portion 14d is arranged in the same layer.

[0202] The composition, preparation and other contents of the partition structure mentioned above are described in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT /

[0203] Further description is provided in CN2024 / 098217, PCT / CN2024 / 100935, PCT / CN2024 / 102785, PCT / CN2024 / 099419, PCT / CN2024 / 099072, and CN116685174A for reference.

[0204] In some embodiments, see Fig. 27 The display panel further includes a pixel definition layer 17 (Pixel Definition Layer, PDL), which is disposed on one side of the substrate 11 to provide good planar support for the subsequent formation of the first isolation structure 12. The pixel definition layer 17 encloses a pixel hole 17a. The orthographic projection of the pixel hole 17a on the substrate 11 is located within the orthographic projection of the first isolation opening 12a on the substrate 11, and at least a portion of the first light-emitting element 13 can be located within the pixel hole 17a. In this way, by providing the pixel definition layer 17, it is convenient to provide a light-emitting unit on the substrate 11.

[0205] Alternatively, see Fig. 27, the pixel defining layer 17 is also located on the side of the first electrode 13a away from the substrate 11, and the pixel hole 17a exposes a portion of the first electrode 13a;

[0206] The orthographic projection of the pixel hole 17 a on the substrate 11 is located within the orthographic projection range of the first electrode 13 a on the substrate 11 , and the orthographic projection of the first electrode 13 a on the substrate 11 is located within the orthographic projection range of the first isolation opening 12 a on the substrate 11 .

[0207] In some embodiments, see Fig. 27 The display panel further includes a package 18, which is disposed on the side of the second electrode 13c away from the substrate 11, and the orthographic projection of the package layer 18 on the substrate 11 covers the orthographic projection of the second electrode 13c on the substrate 11. A portion of the package layer 18 can be disposed on the side of the first blocking portion 12d of the first isolation structure 12 away from the substrate 11. Optionally, a portion of the package layer 18 can be disposed in close contact with the first blocking portion 12d, or can be disposed in the air ( Fig. 27 Optionally, a portion of the encapsulation layer 18 may completely and closely cover the first barrier portion 12d, may partially and closely cover the first barrier portion 12d, may completely and in space cover the first barrier portion 12d, or may partially and in space cover the first barrier portion 12d ( Fig. 27 for this reason).

[0208] In the display panel shown in any of the above embodiments, by providing a connector under the first electrode, or on the first electrode, or in the same layer as the first electrode, and extending the connector to the periphery of the first isolation structure, the pixel dark spots caused by the PDL Pit can be improved, and the capacitance of the first electrode in the first display area can be increased, and the display Mura phenomenon under low gray scale can be improved. Moreover, by limiting the boundary of the first electrode in the first display area to the first isolation opening, light can be transmitted between the first electrode and the first isolation structure, thereby improving the transmittance of the first display area and improving the display effect of the display panel.

[0209] In some embodiments, a display panel is also provided. Figure 4 The display panel includes: a substrate 11; a first isolation structure 12, which is arranged on one side of the substrate 11; the first isolation structure 12 encloses a first isolation opening 12a; a first light-emitting element 13, which is arranged on one side of the substrate 11 and corresponds to the first isolation opening 12a; the first light-emitting element 13 includes a first electrode 13a, a first light-emitting portion 13b and a second electrode 13c which are stacked in a direction away from the substrate 11; at least part of the orthographic projection outer contour of the first electrode 13a on the substrate 11 is located within the orthographic projection range of the first isolation opening 12a on the substrate 11; see Figure 7 and Figure 8The display panel has a first display area 10 and a second display area 20 located at least on one side of the first display area, the transmittance of the first display area 10 is greater than the transmittance of the second display area 20; the first isolation structure 12 and the first light-emitting element 13 are located in the first display area 10; optionally, the display panel further includes: a second isolation structure 14, which is arranged on one side of the substrate 11 and is located in the second display area 20, and the second isolation structure 14 encloses a plurality of second isolation openings 14a; the second isolation structure 14 also encloses the first display area 10, and the second display area 20 further includes a light-transmitting hole 12b at least partially arranged around the first isolation structure 12; the orthographic projection of the light-transmitting hole 12b on the substrate 11 is parallel to the first display area 20 in the The orthographic projections on the substrate overlap; the first isolation structure 12 is arranged in the light-transmitting hole 12b; a plurality of second light-emitting elements 15 are arranged on one side of the substrate 11 and are arranged corresponding to the plurality of second isolation openings 14a; optionally, the display panel includes a plurality of first isolation structures 12 and a plurality of first light-emitting elements 13, the plurality of first isolation structures 12 are arranged at intervals in the light-transmitting hole 12b, and the plurality of first light-emitting elements 13 are arranged corresponding to the first isolation openings 12a of the plurality of first isolation structures 12; optionally, each first isolation structure 12 encloses a first isolation opening 12a; optionally, the orthographic projection area of ​​the first isolation opening 12a on the substrate 11 is smaller than the orthographic projection area of ​​the second isolation opening 14a on the substrate. It should be noted that Figure 7 and Figure 8 These are examples only, especially Figure 8 The middle light-transmitting hole 12 b only shows two first isolation openings 12 a and two second isolation openings 14 a , and the number of each is not limited.

[0210] The descriptions of the above-mentioned areas and components are all described in the above content. Please refer to the above descriptions for details and will not be repeated here.

[0211] In some embodiments, a display panel is also provided. Figure 19-Figure 25The display panel includes: a substrate 11; a first isolation structure 12, which is arranged on one side of the substrate 11, and the first isolation structure 12 encloses a first isolation opening 12a; a plurality of first light-emitting elements 13, which are arranged on one side of the substrate 11, and each first light-emitting element 13 is arranged corresponding to the first isolation opening 12a; the first light-emitting element 13 includes a first electrode 13a, a first light-emitting portion 13b and a second electrode 13c stacked in a direction away from the substrate 11; the outer contour of the orthographic projection of the first electrode 13a on the substrate 11 is located within the orthographic projection range of the first isolation opening 12a on the substrate 11; the plurality of first light-emitting elements 13 include a plurality of first color light-emitting elements 13d1, a plurality of second color light-emitting elements 13d2, and a plurality of third color light-emitting elements 13d3. A plurality of connectors 16, wherein the connectors 16 are electrically connected to at least two first electrodes 13a; the connectors 16 include an electrode connector 16a and a connecting wire 16b, wherein the electrode connector 16a is connected to the first electrode 13a, wherein the orthographic projection of the electrode connector 16a on the substrate 11 partially overlaps with the orthographic projection of the first isolation structure 12 on the substrate 11, and the orthographic projection of part of the electrode connector 16a on the substrate 11 is located outside the outer contour of the orthographic projection of the first isolation structure 12 on the substrate 11; the connecting wire 16b of each first color light-emitting element 13d1 is connected to the connecting wire 16b of at least one adjacent first color light-emitting element 13d1; the connecting wire 16b of each second color light-emitting element 13d2 is connected to the connecting wire 16b of at least one adjacent second color light-emitting element 13d2; and the connecting wire 16b of each third color light-emitting element 13d3 is connected to the connecting wire 16b of at least one adjacent third color light-emitting element 13d1.

[0212] The descriptions of the above-mentioned areas and components are all described in the above content. Please refer to the above descriptions for details and will not be repeated here.

[0213] The following is a description of a method for preparing the display panel 1 provided in an embodiment of the present application.

[0214] The method for preparing the display panel 1 provided in the embodiment of the present application can be used to prepare the display panel 1 in the above embodiment, see Figure 2 The display panel 1 may include a first display area 10 and a second display area 20. The following is a method for preparing the display panel of the first display area. Fig.24 , the method comprises the following steps:

[0215] S110: providing a substrate.

[0216] See also Figure 1-Figure 27 , providing a substrate 11, which can provide support for the remaining film layers that are subsequently arranged.

[0217] S120: forming a first isolation structure on one side of the substrate; the first partition structure encloses a first isolation opening.

[0218] See also Figure 1-Figure 27 After providing the substrate 11, the method may include forming a first isolation structure 12 on one side of the substrate 11, wherein the first isolation structure 12 encloses a first isolation opening 12a. For the description of the first isolation structure 12 and the first isolation opening 12a, please refer to the above content and will not be repeated here.

[0219] S130: forming a first light-emitting component on one side of the substrate; the first light-emitting component is arranged corresponding to the first isolation opening; the first light-emitting component includes a first electrode, a first light-emitting portion and a second electrode stacked in a direction away from the substrate; at least part of the orthographic projection outer contour of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate.

[0220] See also Figure 1-Figure 27 After forming the first isolation structure 12 on one side of the substrate 11, the first light-emitting element 13 may be formed on one side of the substrate 11. Specifically, a first electrode 13a may be formed on one side of the substrate 11, and then a first light-emitting portion 13b may be formed on one side of the first electrode 13a, and then a second electrode 13c may be formed on one side of the first light-emitting portion 13b. When preparing the first electrode 13a, the boundary of the first electrode 13a is confined within the first isolation opening 12a. For the description of the first light-emitting element 13, please refer to the above content, which will not be repeated here.

[0221] The composition, preparation and other contents of the first isolation structure mentioned above are further described in patents CN118251982A, 202311324257.8, 2023107314719, 202311686416.9, 202310707183.X, 202310479495.X, 202310445544.8, 202310731471.9, CN116685174A, and CN116669477A for reference.

[0222] The method for preparing a display panel provided in an embodiment of the present application, by limiting the first electrode to be within the first isolation opening enclosed by the first isolation structure, allows a certain space between the boundary of the first electrode corresponding to the first isolation opening in the first light-emitting element and the first isolation structure. In this way, the portion between the first electrode and the first isolation structure will also be able to transmit light, thereby compensating for the problem of insufficient light transmission caused by excessive shading due to the independent design of the first isolation structure, thereby improving the transmittance of the UDC area, and further improving the transmittance of the display panel.

[0223] In some embodiments, see Fig.29 , the method for preparing the display panel further includes:

[0224] S140: forming a second isolation structure on one side of the substrate; the second isolation structure encloses a plurality of second isolation openings.

[0225] See also Figure 1-Figure 27 After providing the substrate 11, the method may include forming a second isolation structure 14 on one side of the substrate 11, wherein the second isolation structure 14 encloses a second isolation opening 14a. For the description of the second isolation structure 14 and the second isolation opening 14a, please refer to the above content and will not be repeated here.

[0226] In some embodiments, see Fig.30 , the method for preparing the display panel further includes:

[0227] S150: forming a connector on one side of the substrate, the connector being connected to at least two first light-emitting elements having the same light-emitting color; or, forming a connector on a side of the first electrode close to the substrate before forming the first light-emitting element, or, forming a connector on a side of the first electrode away from the substrate.

[0228] See also Figure 1-Figure 27 After providing the substrate 11, the method may include forming a connector 16 on one side of the substrate 11, so that the connector 16 and the first electrode 13a are disposed in the same layer (see Fig. 20 Alternatively, a connector 16 is formed on the side of the first electrode 13a close to the substrate, so that the connector 16 is arranged in the lower layer of the first electrode 13a (see Fig.23 Alternatively, a connecting member 16 is formed on the side of the first electrode 13a away from the substrate 11, so that the connecting member 16 is arranged on the upper layer of the first electrode 13a (see Fig.24 ). For the description of the connector 16, please refer to the above content and will not be repeated here.

[0229] In some embodiments, see Fig.31 , the method for preparing the display panel further includes:

[0230] S160 , forming a pixel definition layer on one side of the substrate.

[0231] See also Figure 1-Figure 27 After providing the substrate 11, the method may include forming a pixel defining layer 17 on one side of the substrate 11 to define a plurality of pixel holes, wherein the pixel holes expose a portion of the first electrode so that a portion of the first light-emitting element 13 is in the pixel holes.

[0232] S170, forming a packaging layer on a side of the second electrode facing away from the substrate.

[0233] See also Figure 1-Figure 27 After providing the second electrode 13 c , the method may include forming an encapsulation layer 18 on one side of the second electrode 13 c to encapsulate the first light-emitting element 13 .

[0234] The method described in the above embodiment is to set a connector in the display panel, and extend the electrode connecting portion of the connector to the periphery of the first isolation structure. Since over-engraving is likely to occur in the peripheral area of ​​the first isolation structure, the connecting line connected to the adjacent light-emitting element is likely to be disconnected. In this way, the electrode connecting portion of the connector is extended, and the extended electrode connecting portion forms a circle in the peripheral area. Even if the connecting line is disconnected in the peripheral area, the connecting line of the adjacent light-emitting element can be connected by the electrode connecting portion extending in the circle, which can improve the dark spot problem caused by PDL Pit. In addition, the capacitance of the first electrode in the first display area can be increased, and the Mura phenomenon under grayscale can be improved, thereby improving the display effect of the display panel.

[0235] The embodiment of the present application provides a display device, which includes the display panel 1 described in any of the above embodiments. The display device can be an electronic paper, a mobile phone, a tablet computer, a television, a display, a laptop, a digital photo frame, a smart bracelet, a smart watch, a super personal computer, a navigator, a wireless device, a personal digital assistant (PDA), a handheld or portable computer, a GPS receiver / navigator, a camera, an MP4 video player, a camera, a game console, a clock, a calculator, a TV monitor, a computer monitor, a car display (e.g., an odometer display, etc.), a cockpit controller and / or display, a display of a camera view (e.g., a display of a rear-view camera in a vehicle), an electronic billboard or sign, a projector, and other mobile or fixed terminals.

[0236] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0237] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0238] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: substrate; A first isolation structure is disposed on one side of the substrate; The first isolation structure encloses to form a first isolation opening; A first light-emitting component is arranged on one side of the substrate and corresponds to the first isolation opening; the first light-emitting component includes a first electrode, a first light-emitting portion and a second electrode stacked in a direction away from the substrate; at least part of the orthographic projection outer contour of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate.

2. The display panel according to claim 1, characterized in that: The display panel comprises a first display area and a second display area located at least on one side of the first display area, the light transmittance of the first display area is greater than the light transmittance of the second display area; the first isolation structure and the first light emitting element are located in the first display area; Optionally, the display panel further includes: A second isolation structure is disposed on one side of the substrate and located in the second display area, and the second isolation structure encloses a plurality of second isolation openings; The second isolation structure also encloses the first display area, and the second display area further includes a light-transmitting hole at least partially surrounding the first isolation structure; A plurality of second light-emitting elements are disposed on one side of the substrate and are disposed corresponding to the plurality of second isolation openings; Optionally, the display panel includes a plurality of first isolation structures and a plurality of first light-emitting elements, the plurality of first isolation structures are arranged at intervals in the first display area, and the plurality of first light-emitting elements are arranged corresponding to the first isolation openings of the plurality of first isolation structures; Optionally, each of the first isolation structures encloses and forms one first isolation opening; Optionally, an orthographic projection area of ​​the first isolation opening on the substrate is smaller than an orthographic projection area of ​​the second isolation opening on the substrate.

3. The display panel according to claim 1, characterized in that: The orthographic projection outer contour of the first electrode on the substrate is located within the orthographic projection outer contour of the first isolation structure on the substrate; Optionally, the first electrode includes a first electrode portion and a second electrode portion, the orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate, and the orthographic projection of the second electrode portion on the substrate overlaps with the orthographic projection of the first isolation structure on the substrate; Optionally, the orthographic projection of the first electrode portion on the substrate has a first edge, the first edge is located on a side of the first electrode portion away from the second electrode portion, the orthographic projection of the first isolation structure on the substrate has a second edge on a side close to the first isolation opening, and a distance between the first edge and the second edge is greater than 0 micrometers; Optionally, the orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate; Optionally, a distance between an orthographic projection edge of the first electrode on the substrate and an orthographic projection edge of the isolation structure on the substrate close to a side of the first isolation opening is greater than 0 micrometer.

4. The display panel according to any one of claims 1 to 3, characterized in that: The display panel further comprises a plurality of connecting members, wherein the connecting members are electrically connected to at least two of the first electrodes; Optionally, the connecting member is connected to at least two of the first light-emitting members having the same light-emitting color; Optionally, the display panel includes a plurality of the first light-emitting elements, and the plurality of the first light-emitting elements include a plurality of first color light-emitting elements, a plurality of second color light-emitting elements, and a plurality of third color light-emitting elements; the connecting element of each first color light-emitting element is connected to the connecting element of at least one adjacent first color light-emitting element; the connecting element of each second color light-emitting element is connected to the connecting element of at least one adjacent second color light-emitting element; and the connecting element of each third color light-emitting element is connected to the connecting element of at least one adjacent third color light-emitting element.

5. The display panel according to claim 4, characterized in that: The connecting member includes an electrode connecting portion, the electrode connecting portion is connected to the first electrode, the orthographic projection of the electrode connecting portion on the substrate partially overlaps with the orthographic projection of the first isolation structure on the substrate, and part of the orthographic projection of the electrode connecting portion on the substrate is located outside the outer contour of the orthographic projection of the first isolation structure on the substrate; Optionally, the connecting member further comprises a connecting wire, wherein the connecting wire of each first color light emitting member is connected to the connecting wire of at least one adjacent first color light emitting member; the connecting wire of each second color light emitting member is connected to the connecting wire of at least one adjacent second color light emitting member; and the connecting wire of each third color light emitting member is connected to the connecting wire of at least one adjacent third color light emitting member; Optionally, the electrode connection portion of each first color light-emitting element is connected to the electrode connection portion of at least one adjacent first color light-emitting element through a first connection line; the electrode connection portion of each second color light-emitting element is connected to the electrode connection portion of at least one adjacent second color light-emitting element through a second connection line; the electrode connection portion of each third color light-emitting element is connected to the electrode connection portion of at least one adjacent third color light-emitting element through a third connection line; Optionally, the electrode connecting portion is arranged in the same layer as the first electrode, and at least part of the electrode connecting portion is arranged around the first electrode; Optionally, the electrode connecting portion is arranged in the same layer as the first electrode, and the electrode connecting portion is arranged around the first electrode; Optionally, the electrode connecting portion is arranged on a side of the first electrode close to the substrate, the orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the electrode connecting portion on the substrate, and the electrode connecting portion is in contact and connected with a side of the first electrode close to the substrate; Optionally, the electrode connecting portion is arranged on a side of the first electrode facing away from the substrate, the orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the electrode connecting portion on the substrate, and the electrode connecting portion is in contact and connected with the side of the first electrode facing away from the substrate; Optionally, the orthographic projection of the first isolation structure on the substrate is a first orthographic projection, and the part of the orthographic projection of the electrode connecting part on the substrate located outside the first orthographic projection is a second orthographic projection; a distance between an edge of a side of the second orthographic projection away from the first orthographic projection and an edge of a side of the first orthographic projection away from the first isolation opening is greater than 0.5 microns.

6. The display panel according to claim 4, characterized in that: The connecting piece is made of transparent conductive material; Optionally, the material of the connecting member includes indium tin oxide.

7. The display panel according to any one of claims 1 to 3, characterized in that: The first isolation structure comprises a first isolation body and a first blocking portion stacked in a direction away from the substrate, the orthographic projection of the first blocking portion on the substrate covers the orthographic projection of the first isolation body on the substrate, and the orthographic projection outer contour of the first blocking portion on the substrate is located at the periphery of the orthographic projection outer contour of the first isolation body on the substrate; Optionally, the first electrode includes a first electrode portion and a second electrode portion, an orthographic projection of the first electrode portion on the substrate is located on a side of an orthographic projection of the first blocking portion on the substrate close to the first isolation opening, and a distance between an orthographic projection edge of the first electrode portion on the substrate and an orthographic projection edge of the first blocking portion on the substrate is greater than or equal to 0 micrometers; Optionally, the orthographic projection of the second electrode portion on the substrate is located within the orthographic projection range of the first blocking portion on the substrate; Optionally, the orthographic projection of the second electrode portion on the substrate overlaps with the orthographic projection of the first blocking portion on the substrate, and is partially located within the orthographic projection range of the first isolator on the substrate; Optionally, the second isolation structure comprises a second isolation body and a second blocking portion stacked in a direction away from the substrate, the orthographic projection of the second blocking portion on the substrate covers the orthographic projection of the second isolation body on the substrate, and the orthographic projection outer contour of the second blocking portion on the substrate is located at the periphery of the orthographic projection outer contour of the second isolation body on the substrate; Optionally, the first isolation structure and the second isolation structure are arranged at the same layer; Optionally, the first isolator and the second isolator are arranged in the same layer; Optionally, the first blocking portion and the second blocking portion are arranged in the same layer.

8. The display panel according to any one of claims 1 to 3, characterized in that: The display panel further includes a pixel defining layer, which is disposed on one side of the substrate, the pixel defining layer encloses a plurality of pixel holes, the plurality of pixel holes are respectively disposed corresponding to the first isolation openings, and the pixel holes are connected to the first isolation openings, and the orthographic projections of the pixel holes on the substrate are located within the orthographic projection range of the first isolation opening on the substrate; Optionally, the pixel defining layer is also located on a side of the first electrode facing away from the substrate, and the pixel hole exposes a portion of the first electrode; Optionally, the orthographic projection of the pixel hole on the substrate is located within the orthographic projection range of the first electrode on the substrate, and the orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate.

9. The display panel according to claim 1-3, characterized in that: The display panel further includes an encapsulation layer disposed on a side of the second electrode and the first isolation structure away from the substrate, and an orthographic projection of the encapsulation layer on the substrate covers an orthographic projection of the second electrode on the substrate.

10. A display panel, characterized in that: include: substrate; A first isolation structure is disposed on one side of the substrate; The first partition structure encloses and forms a first isolation opening; A first light-emitting element is disposed on one side of the substrate and is disposed corresponding to the first isolation opening; the first light-emitting element comprises a first electrode, a first light-emitting portion, and a second electrode stacked in a direction away from the substrate; an outer contour of an orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate; The display panel comprises a first display area and a second display area located at least on one side of the first display area, and the light transmittance of the first display area is greater than the light transmittance of the second display area; The first isolation structure and the first light-emitting element are located in the first display area.

11. The display panel according to claim 10, characterized in that: The orthographic projection outer contour of the first electrode on the substrate is located within the orthographic projection outer contour of the first isolation structure on the substrate; Optionally, the first electrode includes a first electrode portion and a second electrode portion, the orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate, and the orthographic projection of the second electrode portion on the substrate overlaps with the orthographic projection of the first isolation structure on the substrate; Optionally, the orthographic projection of the first electrode portion on the substrate has a first edge, the first edge is located on the side of the first electrode portion facing away from the second electrode portion, the orthographic projection of the isolation structure on the substrate is at a second edge close to the first isolation opening, and the distance between the first edge and the second edge is greater than or equal to 0 microns.

12. A display panel, characterized in that: include: substrate; A first isolation structure is disposed on one side of the substrate; The first partition structure encloses and forms a first isolation opening; A plurality of first light-emitting elements are arranged on one side of the substrate, and each of the first light-emitting elements is arranged corresponding to the first isolation opening; the first light-emitting element comprises a first electrode, a first light-emitting portion, and a second electrode stacked and arranged in a direction away from the substrate; the outer contour of the orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate; A plurality of connecting members, wherein the connecting members are electrically connected to at least two of the first light-emitting members having the same light-emitting color; The orthographic projection of the first isolation structure on the substrate is located in a portion and the orthographic projection of the connecting member on the substrate is located within an outer contour range.

13. The display panel according to claim 12, characterized in that: The connecting member includes an electrode connecting portion, the electrode connecting portion is connected to the first electrode, the orthographic projection of the electrode connecting portion on the substrate partially overlaps with the orthographic projection of the first isolation structure on the substrate, and part of the orthographic projection of the electrode connecting portion on the substrate is located outside the outer contour of the orthographic projection of the first isolation structure on the substrate; Optionally, the connecting member further comprises connecting wires, and the connecting wires of the first light-emitting members having the same luminous color are connected to each other; Optionally, the electrode connecting portion is arranged in the same layer as the first electrode, and at least part of the electrode connecting portion is arranged around the first electrode; Optionally, the electrode connecting portion is arranged on a side of the first electrode close to the substrate, the orthographic projection of the first electrode on the substrate is located within the orthographic projection range of the electrode connecting portion on the substrate, and the electrode connecting portion is in contact and connected with a side of the first electrode close to the substrate; Optionally, the orthographic projection of the first isolation structure on the substrate is a first orthographic projection, and the part of the orthographic projection of the electrode connecting part on the substrate located outside the first orthographic projection is a second orthographic projection; a distance between an edge of a side of the second orthographic projection away from the first orthographic projection and an edge of a side of the first orthographic projection away from the first isolation opening is greater than 0.5 microns.

14. A method for preparing a display panel, characterized in that: include: providing a substrate; forming a first isolation structure on one side of the substrate; The first partition structure encloses and forms a first isolation opening; A first light-emitting component is formed on one side of the substrate; the first light-emitting component is arranged corresponding to the first isolation opening; the first light-emitting component includes a first electrode, a first light-emitting portion and a second electrode stacked in a direction away from the substrate; at least part of the orthographic projection outer contour of the first electrode on the substrate is located within the orthographic projection range of the first isolation opening on the substrate.

15. The preparation method according to claim 14, characterized in that: The method further comprises: A second isolation structure is formed on one side of the substrate; the second isolation structure encloses a plurality of second isolation openings, and the second isolation structure also encloses a first display area including the first isolation structure.

16. The preparation method according to claim 14 or 15, characterized in that: The method further comprises: A connecting member is formed on one side of the substrate, and the connecting member is connected to at least two of the first light-emitting members having the same light-emitting color; Optionally, before forming the first light-emitting element on one side of the substrate, the connecting element is formed on a side of the first electrode close to the substrate; Optionally, the connecting member is formed on a side of the first electrode facing away from the substrate.

17. The preparation method according to claim 16, characterized in that: The method further comprises: forming a pixel definition layer on one side of the substrate, and patterning the pixel definition layer to form a plurality of pixel holes, wherein the pixel holes expose a portion of the first electrode; A packaging layer is formed on a side of the second electrode away from the substrate.

18. A display device, characterized in that: A display panel comprising the display panel according to any one of claims 1 to 13 or a display panel formed by the method for preparing the display panel according to claims 14 to 17.

Images