Display panel, display device, and display panel manufacturing method

Abstract

The present application discloses a display panel, a display device, and a display panel manufacturing method. The display panel comprises: a substrate; an isolation structure, located on one side of the substrate, the isolation structure defining an isolation opening; a light-emitting layer, located on one side of the substrate, wherein the light-emitting layer comprises a plurality of light-emitting units arranged at intervals, and the light-emitting units are at least partially located in the isolation opening; and a first packaging layer, comprising a plurality of packaging parts used for packaging the light-emitting units, wherein the orthographic projection of the packaging part corresponding to at least one light-emitting unit on the substrate at least partially overlaps the orthographic projection of the packaging part corresponding to at least one adjacent light-emitting unit on the substrate. At least one packaging part is covered by other packaging parts, the relative position between the covered packaging part and the isolation structure is more stable, the packaging part does not easily fail, and the yield and the use performance of the display panel can be further improved.

Description

Display panel, display device, and method for manufacturing display panel

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202410337563.3, filed on March 20, 2024, entitled “Display Panel, Display Device, and Method for Preparing Display Panel,” and the entire contents of that application are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of display, and in particular to a display panel, a display device, and a method for manufacturing a display panel. Background Art

[0004] Organic Light Emitting Diode (OLED) and flat-panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, power saving, thin body, and wide range of applications, becoming the mainstream display device.

[0005] However, the performance of current OLED display products needs to be improved.

[0006] Summary of the Invention

[0007] The embodiments of the present application provide a display panel, a display device, and a method for manufacturing a display panel, aiming to improve the performance of OLED display products.

[0008] An embodiment of the first aspect of the present application provides a display panel, which includes: a substrate; an isolation structure located on one side of the substrate, the isolation structure enclosing an isolation opening; a light-emitting layer located on one side of the substrate, the light-emitting layer including a plurality of light-emitting units arranged at intervals, the light-emitting units being at least partially located in the isolation opening; a first encapsulation layer including a plurality of encapsulation parts for encapsulating each light-emitting unit, wherein the orthographic projection of the encapsulation part corresponding to at least one light-emitting unit on the substrate at least partially overlaps with the orthographic projection of the encapsulation part corresponding to at least one light-emitting unit adjacent thereto on the substrate.

[0009] Another embodiment of the first aspect of the present application provides a display panel, the display panel comprising: a substrate;

[0010] An isolation structure is located on one side of the substrate, the isolation structure encloses an isolation opening and has a top surface facing away from the substrate;

[0011] The light-emitting layer is located on one side of the substrate, and the light-emitting layer includes a light-emitting unit at least partially located in the isolation opening.

[0012] The first encapsulation layer includes a plurality of encapsulation parts for encapsulating each light-emitting unit.

[0013] In which, the packaging part is located on the side of the light-emitting unit facing away from the substrate, the packaging part also covers the side wall of the isolation structure facing the isolation opening and extends to the side of the isolation structure facing away from the substrate, and is formed in a covering section on the side of the isolation structure facing away from the substrate. The covering section of at least one packaging part includes a first area and a second area. Along the thickness direction of the substrate, the distance from the first area to the top surface is different from the distance from the second area to the top surface.

[0014] An embodiment of the second aspect of the present application provides a display device, which includes the display panel of any of the above embodiments.

[0015] An embodiment of the third aspect of the present application further provides a method for manufacturing a display panel, comprising:

[0016] forming an isolation structure on the substrate, wherein the isolation structure encloses a plurality of isolation openings, the isolation openings including a first isolation opening and a second isolation opening;

[0017] forming a first light emitting unit and a first encapsulation portion at least partially disposed in the first isolation opening;

[0018] A second light emitting unit and a second encapsulation portion are formed and are at least partially disposed in the second isolation opening, and the second encapsulation portion partially extends onto the second encapsulation portion.

[0019] According to an embodiment of the present application, a display panel includes a substrate, an isolation structure, a light-emitting layer, and a first encapsulation layer. The isolation structure is disposed on the substrate and encloses a plurality of isolation openings to partition the light-emitting layer into mutually disconnected light-emitting units. This reduces carrier crosstalk within the light-emitting layer and improves the display quality of the display panel. Furthermore, the light-emitting units do not require the use of precision masks, which reduces the development and use of precision masks and reduces manufacturing costs. The first encapsulation layer includes an encapsulation portion for encapsulating each light-emitting unit. The encapsulation portion provides protection for the light-emitting units and reduces the yield of the light-emitting units affected by water and oxygen intrusion. The orthographic projection of the encapsulation portion corresponding to at least one light-emitting unit on the substrate at least partially overlaps with the orthographic projection of the encapsulation portion corresponding to at least one adjacent light-emitting unit on the substrate, thereby increasing the distribution area of ​​the encapsulation portions. The overlap of some adjacent encapsulation portions can expand the distribution area of ​​the encapsulation portions and improve the encapsulation effect. Furthermore, at least one encapsulation portion is covered by another encapsulation portion, which stabilizes the relative position between the covered encapsulation portion and the isolation structure and makes the covered encapsulation portion less susceptible to damage, further improving the yield and performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features and the accompanying drawings are not drawn to scale.

[0021] FIG1 is a schematic structural diagram of a display panel provided in an embodiment of the present application;

[0022] FIG2 is a schematic diagram of a partially enlarged structure of a portion M1 in FIG1 in an example;

[0023] FIG3 is a cross-sectional view of a point AA in FIG2 in one example;

[0024] FIG4 is a cross-sectional view of a point AA in FIG2 in another example;

[0025] FIG5 is a schematic diagram of a partially enlarged structure of M1 in FIG1 in another example;

[0026] FIG6 is a cross-sectional view of a point BB in FIG2 in one example;

[0027] FIG7 is a cross-sectional view at BB in FIG2 in another example;

[0028] FIG8 is a schematic diagram of a partially enlarged structure of M1 in FIG1 in another example;

[0029] FIG9 is a schematic diagram of a partially enlarged structure of M1 in FIG1 in another example;

[0030] FIG10 is a cross-sectional view of a section CC in FIG8 in one example;

[0031] FIG11 is a schematic diagram of a partially enlarged structure of M1 in FIG1 in another example;

[0032] FIG12 is a cross-sectional view at DD in FIG2 in one example;

[0033] FIG13 is a schematic diagram of a partially enlarged structure of FIG12 in one example;

[0034] FIG14 is a schematic diagram of a partially enlarged structure of FIG12 in another example;

[0035] FIG15 is a cross-sectional view at DD in FIG2 in another example;

[0036] FIG16 is a schematic diagram of a partially enlarged structure of FIG15 in one example;

[0037] FIG17 is a schematic diagram of a partially enlarged structure of FIG2 in one example;

[0038] FIG18 is a cross-sectional view of a point AA in FIG2 in another example;

[0039] FIG19 is a cross-sectional view of a point AA in FIG2 in another example;

[0040] FIG20 is a cross-sectional view of a point AA in FIG2 in another example;

[0041] FIG21 is a cross-sectional view of a point AA in FIG2 in another example;

[0042] FIG22 is a cross-sectional view of a point AA in FIG2 in another example;

[0043] FIG23 is a cross-sectional view of a point AA in FIG2 in another example;

[0044] FIG24 is a schematic flow chart of a method for preparing a display panel provided in an embodiment of the present application.

[0045] Description of reference numerals:

[0046] 10. Display panel;

[0047] 100, substrate; 110, first electrode;

[0048] 200, isolation structure; 201, top surface; 210, first layer; 220, second layer; 230, third layer; 240, isolation opening; 250, light-transmitting opening;

[0049] 300, light-emitting layer; 310, light-emitting unit; 311, first light-emitting unit; 312, second light-emitting unit; 313, third light-emitting unit; 320, redundant unit;

[0050] 400, first encapsulation layer; 401, encapsulation portion; 401a, covering segment; 410, first encapsulation portion; 411, first segment; 412, second segment; 412a, first surface; 412b, second surface; 412c, first side; 420, second encapsulation portion; 421, third segment; 422, fourth segment; 422a, first subsegment; 422a1, first main body; 422a2, connecting portion; 422b, second subsegment; 430, third encapsulation portion; 431, fifth segment; 432, sixth segment; 432a, third subsegment; 432b, fourth subsegment; 432c, fifth subsegment;

[0051] 402, second encapsulation layer; 403, third encapsulation layer;

[0052] 500, second electrode layer; 510, second electrode; 520, redundant electrode;

[0053] 600, pixel definition layer; 610, pixel defining portion; 620, pixel opening; 630, first electrode;

[0054] AA1, main display area; AA2, function display area;

[0055] QA, overlapping area; QB, hollow area;

[0056] Q1, first gap; Q2, second gap; Q3, third gap; Q4, first gap;

[0057] D1, first width; D2, second width; d1, first sub-width; d2, second sub-width; d3, third sub-width; d4, fourth sub-width; d5, fifth sub-width;

[0058] X, first direction; Y, second direction; Z, thickness direction. DETAILED DESCRIPTION

[0059] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0060] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or region, it may mean that it is directly on the other layer or region, or that other layers or regions are included between it and the other layer or region. Furthermore, if the component is turned over, the layer or region will be "below" or "beneath" the other layer or region.

[0061] The embodiments of the present application provide a display panel 10 , a display device, and a method for manufacturing the display panel 10 . Hereinafter, various embodiments of the display panel 10 , the display device, and the method for manufacturing the display panel 10 will be described with reference to the accompanying drawings.

[0062] An embodiment of the present application provides a display panel 10 , which may be an organic light emitting diode (OLED) display panel 10 .

[0063] Please refer to Figures 1 to 4 together. Figure 1 is a structural schematic diagram of a display panel 10 provided in an embodiment of the present application; Figure 2 is a locally enlarged structural schematic diagram of M1 in Figure 1, Figure 3 is a cross-sectional view of AA in Figure 2 in one example, and Figure 4 is a cross-sectional view of AA in Figure 2 in another example.

[0064] As shown in Figures 1 to 4, an embodiment of the first aspect of the present application provides a display panel 10, which includes: a substrate 100; an isolation structure 200, located on one side of the substrate 100, the isolation structure 200 enclosing an isolation opening 240; a light-emitting layer 300, located on one side of the substrate 100, the light-emitting layer 300 including a plurality of spaced-apart light-emitting units 310, the light-emitting units 310 being at least partially located in the isolation opening 240, and a first encapsulation layer 400 including a plurality of encapsulation portions 401 for encapsulating each light-emitting unit 310, wherein the orthographic projection of the encapsulation portion 401 corresponding to at least one light-emitting unit 310 on the substrate 100 and the orthographic projection of the encapsulation portion 401 corresponding to at least one light-emitting unit 310 adjacent thereto on the substrate 100 at least partially overlap.

[0065] In FIG2 and subsequent related drawings, the location of the packaging part 401 is indicated by a dotted line. The dotted line is not sufficient to limit the structure of the present application. The dotted line is used to define the location and distribution range of the packaging part 401.

[0066] According to the display panel 10 of the embodiment of the present application, the display panel 10 includes a substrate 100, an isolation structure 200, a light-emitting layer 300 and a first encapsulation layer 400. The isolation structure 200 is arranged on the substrate 100 and encloses a plurality of isolation openings 240 to separate the light-emitting layer 300 to form mutually disconnected light-emitting units 310, thereby reducing the crosstalk of carriers in the light-emitting layer 300, improving the display effect of the display panel 10, and no precision mask plate is required to prepare the light-emitting unit 310, which can reduce the development and use of precision mask plates and reduce the preparation cost. The first encapsulation layer 400 includes an encapsulation portion 401 for encapsulating each light-emitting unit 310. The encapsulation portion 401 can provide encapsulation protection to the light-emitting unit 310, realize independent encapsulation, and improve the yield of the light-emitting unit 310 affected by water and oxygen intrusion. The orthographic projection of the encapsulation portion 401 corresponding to at least one light-emitting unit 310 on the substrate 100 at least partially overlaps with the orthographic projection of the encapsulation portion 401 corresponding to at least one adjacent light-emitting unit 310 on the substrate 100, thereby increasing the distribution area of ​​the encapsulation portion 401. The overlap of some adjacent encapsulation portions 401 can expand the distribution area of ​​the encapsulation portion 401 and improve the encapsulation effect. Furthermore, since at least one encapsulation portion 401 is covered by other encapsulation portions 401, the relative position between the covered encapsulation portion 401 and the isolation structure 200 is more stable, making the covered encapsulation portion 401 less susceptible to damage, thus avoiding encapsulation failure and further improving the yield and performance of the display panel 10.

[0067] Optionally, multiple isolation openings 240 are spaced apart along the row direction and the column direction, and the direction from the isolation opening 240 to the adjacent isolation opening 240 is the row direction or the column direction. The row direction can be the first direction X, and the column direction can be the second direction Y.

[0068] As shown in FIG. 3 and FIG. 4 , the display panel 10 further includes a second electrode layer 500 . The second electrode layer 500 includes a second electrode 510 located in the isolation opening 240 . The second electrode 510 is located between the light emitting structure and the encapsulation portion 401 and is electrically connected to the isolation structure 200 .

[0069] In these optional embodiments, the isolation structure 200 separates the second electrode layer 500 to form mutually spaced second electrodes 510 , and the mutually spaced second electrodes 510 are electrically connected through the isolation structure 200 to form a full-surface electrode, ensuring normal light emission of the light-emitting unit 310 .

[0070] In some optional embodiments, the light-emitting unit 310 includes a light-emitting structure, and the orthographic projection of the light-emitting unit 310 on the substrate 100 is located within the orthographic projection of each second electrode 510 on the substrate 100 .

[0071] In these optional embodiments, the orthographic projection of the light-emitting structure on the substrate 100 is located within the orthographic projection of the second electrode 510 on the substrate 100, that is, the second electrode 510 covers the light-emitting structure to serve as the electrode of the light-emitting structure, ensuring the normal light emission of the light-emitting unit 310 and improving the display effect of the display panel 10.

[0072] Optionally, the light-emitting structure and the isolation structure 200 are spaced apart, that is, the light-emitting structures are spaced apart from each other, thereby reducing the crosstalk of carriers between the light-emitting structures and improving the cross-color problem of the light-emitting unit 310 .

[0073] In some optional embodiments, the display panel 10 further includes: a pixel definition layer 600 located on the substrate 100 , the pixel definition layer 600 including a pixel defining portion 610 and a pixel opening 620 enclosed by the pixel defining portion 610 , the pixel opening 620 being connected to the isolation opening 240 .

[0074] In these optional embodiments, the pixel defining portion 610 of the pixel definition layer 600 encloses a pixel opening 620 to accommodate the light-emitting unit 310 and ensure normal light emission of the light-emitting unit 310. Furthermore, the pixel defining portion 610 defines the placement area of ​​each light-emitting unit 310, thereby reducing color crosstalk between the light-emitting units 310.

[0075] Optionally, the display panel 10 further includes a first electrode 630, which is exposed by the pixel opening 620. One of the first electrode 630 and the second electrode 510 serves as the anode of the light-emitting unit 310, and the other serves as the cathode of the light-emitting unit 310. This embodiment of the present application uses the first electrode 630 as the anode of the light-emitting unit 310 and the second electrode 510 as the cathode of the light-emitting unit 310 as an example. Patent application numbers 202310707209.0 and 202311346196.5 describe cathode-related content for reference.

[0076] Optionally, the light emitting layer 300 includes an electron injection layer (EIL), an electron transport layer (ETL), a light emitting material layer, a hole injection layer (HIL) and a hole transport layer (HTL).

[0077] Optionally, as shown in FIG3 , the display panel 10 further includes a second encapsulation layer 402 and a third encapsulation layer 403. The second encapsulation layer 402 is located on a side of the first encapsulation layer 400 facing away from the substrate 100, and the third encapsulation layer 403 is located on a side of the second encapsulation layer 402 facing away from the substrate 100. Optionally, the light-emitting unit 310 includes a first light-emitting unit 311, a second light-emitting unit 312, and a third light-emitting unit 313. The first light-emitting unit 311, the second light-emitting unit 312, and the third light-emitting unit 313 may each emit different colors.

[0078] There are many ways to configure the substrate 100. For example, the substrate 100 may include a substrate and an array substrate 100 disposed on the substrate. Alternatively, the substrate 100 is the substrate. Alternatively, the substrate 100 may include a buffer layer and a support plate on a side facing away from the substrate.

[0079] The packaging portion 401 corresponding to the light emitting unit 310 is used to encapsulate the light emitting unit 310 . The orthographic projection of the light emitting unit 310 on the substrate 100 is located within the orthographic projection of the corresponding packaging portion 401 on the substrate 100 .

[0080] In some optional embodiments, as shown in Figures 2, 6, 8, and 9, the orthographic projections of a plurality of adjacent encapsulation portions 401 on the substrate 100 enclose a hollow region QB, and the hollow region QB is located within the orthographic projection of the isolation structure 200 on the substrate 100. This allows a portion of the isolation structure 200 to be exposed through the hollow region QB, and the subsequently prepared second encapsulation layer 402 can fill the second gap corresponding to the hollow region QB and contact and connect with the isolation structure 200.

[0081] As shown in Figure 7 , a hollow region QB may be formed between the packaging portions 401 corresponding to the light emitting units 310 of the same color. Alternatively, as shown in Figures 8 and 9 , a hollow region QB may be formed between the packaging portions 401 corresponding to the light emitting units 310 of different colors.

[0082] Optionally, as shown in FIG8 , the orthographic projection of the encapsulation portion 401 corresponding to one light-emitting unit 310 on the substrate 100 overlaps with the orthographic projection of the encapsulation portion 401 corresponding to a portion of the adjacent light-emitting units 310 on the substrate 100 , so that the same encapsulation portion 401 can be covered by the adjacent portion of the encapsulation portion 401 .

[0083] Optionally, as shown in Figure 2, a light-emitting unit 310 is adjacent to N light-emitting units 310 in its circumferential direction, and the orthographic projection of the packaging part 401 corresponding to the light-emitting unit 310 on the substrate overlaps with the orthographic projection of the packaging part 401 corresponding to the M light-emitting units 310 adjacent to it in the circumferential direction on the substrate 100, M<N.

[0084] Optionally, as shown in FIG8 and FIG10 , a light-transmitting opening 250 is further provided on the isolation structure 200 , and the orthographic projection of the light-transmitting opening 250 on the substrate 100 and the orthographic projection of the hollow area QB on the substrate 100 at least partially overlap.

[0085] In these optional embodiments, a light-transmitting opening 250 is provided on the isolation structure 200 to improve the light transmittance of the display panel 10, thereby achieving the purpose of light transmission and display. The light-transmitting opening 250 and the hollow area QB at least partially overlap, which can reduce the distribution area of ​​the encapsulation portion 401 in the area where the light-transmitting opening 250 is located, thereby ensuring the light transmission effect.

[0086] Optionally, as shown in Figures 1 and 8 , the display panel 10 further includes a main display area AA1 and a functional display area AA2, with the light-transmitting opening 250 located in the functional display area AA2. This improves the light transmittance of the functional display area AA2, enabling it to not only display but also perform corresponding functions. The functional display area AA2 can be an under-screen fingerprint recognition area, the area where the photosensitive module is located, etc.

[0087] Optionally, as shown in FIG8 , a plurality of light-transmitting openings 250 are arranged at intervals around the same isolation opening 240 to further improve the light transmittance of the display panel 10 .

[0088] In some optional embodiments, as shown in Figures 8 to 10, multiple light-emitting units 310 are arranged at intervals along the first direction X to form pixel rows, and the packaging parts 401 corresponding to adjacent light-emitting units 310 in the same pixel row are arranged at intervals in their orthographic projections on the substrate 100.

[0089] In these optional embodiments, the packaging parts 401 corresponding to adjacent light-emitting units 310 in the same pixel row are arranged at intervals, that is, the packaging parts 401 corresponding to adjacent light-emitting units 310 in the same pixel row do not overlap, which facilitates the arrangement of light-transmitting holes between adjacent light-emitting units 310 in the same pixel row.

[0090] Optionally, as shown in FIG8 and FIG9 , a plurality of light-emitting units 310 are arranged at intervals along the second direction Y to form pixel columns. The orthographic projections of the encapsulation portions 401 corresponding to adjacent light-emitting units 310 in the same pixel column on the substrate 100 are arranged at intervals, and the first direction X is perpendicular to the second direction Y. The encapsulation portions 401 corresponding to adjacent light-emitting units 310 in the same pixel column do not overlap, facilitating the provision of light-transmitting holes between adjacent light-emitting units 310 in the same pixel column.

[0091] Optionally, when the plurality of light-emitting units 310 are arranged in rows and columns along the first direction X and the second direction Y, the spacing between two adjacent light-emitting units 310 in the same pixel row or pixel column is large, and the encapsulation portions 401 corresponding to the two adjacent light-emitting units 310 in the same pixel row or pixel column do not overlap. This simplifies the preparation of the encapsulation portion 401 and reduces the difficulty of the preparation process due to an overly large encapsulation portion 401. This also facilitates the provision of the light-transmitting opening 250 in a larger space, thereby improving the light transmittance of the display panel 10.

[0092] Alternatively, as shown in Figures 8 and 9 , multiple light-emitting units 310 are arranged in a third direction to form a pixel repeating unit. The orthographic projections of the encapsulation portions 401 corresponding to adjacent light-emitting units 310 in the same pixel repeating unit on the substrate 100 at least partially overlap, and the angle between the third direction and the first direction X is 40° to 50°. Alternatively, the third direction may be the Z1 direction or the Z2 direction in Figure 9 .

[0093] In these optional embodiments, within the same pixel repeating unit, adjacent light-emitting units 310 are arranged along a third direction, and the angle between the third direction and the first direction X is 40° to 50°. This results in the light-emitting units 310 in two adjacent rows being misaligned. In two adjacent pixel rows, the light-emitting units 310 in one pixel row are correspondingly located between two adjacent light-emitting units 310 in the other pixel row. Part of the light-emitting units 310 in one pixel row may extend between two adjacent light-emitting units 310 in the other pixel row, thereby reducing the spacing between two adjacent light-emitting units 310 in the same pixel repeating unit. The orthographic projections of the encapsulation portions 401 corresponding to adjacent light-emitting units 310 in the same pixel repeating unit on the substrate 100 at least partially overlap, that is, the encapsulation portions 401 corresponding to two adjacent light-emitting units 310 with a smaller spacing overlap. The overlapping of the encapsulation portions 401 in the area with a smaller spacing can expand the distribution area of ​​the encapsulation portions 401 and improve the problem of encapsulation failure of the covered encapsulation portions 401.

[0094] Optionally, as shown in Figures 8 and 9, the light-emitting unit 310 includes a first light-emitting unit 311, a second light-emitting unit 312 and a third light-emitting unit 313, and the pixel row includes a first pixel row formed by the first light-emitting unit 311 and the second light-emitting unit 312 alternately arranged along the first direction X, and a second pixel row formed by a plurality of third light-emitting units 313 arranged at intervals along the first direction X, wherein the first pixel row and the second pixel row are alternately arranged along the second direction Y, and the light-emitting units 310 of the first pixel row and the light-emitting units 310 of the second pixel row are staggered so that the third light-emitting unit 313 is correspondingly located between two adjacent first light-emitting units 311 and second light-emitting units 312.

[0095] In these optional embodiments, the pixel rows include a first pixel row formed by arranging a first light-emitting unit 311 and a second light-emitting unit 312, and a second pixel row formed by arranging a plurality of third light-emitting units 313. The first pixel row and the second pixel row are arranged alternately, so that the plurality of first light-emitting units 311, the second light-emitting units 312, and the third light-emitting units 313 are evenly distributed in the display area of ​​the display panel 10. The light-emitting units 310 of the first pixel row and the light-emitting units 310 of the second pixel row are staggered so that the third light-emitting unit 313 is located between two adjacent first light-emitting units 311 and second light-emitting units 312. This can reduce the spacing between the third light-emitting unit 313 and the first light-emitting unit 311 and the second light-emitting unit 312, thereby increasing pixel density and thereby improving the luminous display effect.

[0096] The spacing between adjacent first light-emitting units 311 and second light-emitting units 312 in the first pixel row is larger, the spacing between adjacent third light-emitting units 313 in the second pixel row is larger, and the spacing between adjacent third light-emitting units 313 and first light-emitting units 311 or second light-emitting units 312 along the third direction is smaller.

[0097] Optionally, as shown in Figures 8 and 9, in the first pixel row, the orthographic projections of the encapsulation portion 401 corresponding to the first light-emitting unit 311 and the encapsulation portion 401 corresponding to the second light-emitting unit 311 on the substrate 100 are spaced apart. Optionally, in the second pixel row, the orthographic projections of the encapsulation portion 401 corresponding to the adjacent third light-emitting unit 313 on the substrate 100 are spaced apart. Optionally, the orthographic projections of the encapsulation portion 401 corresponding to the first light-emitting unit 311 and the encapsulation portion 401 corresponding to the third light-emitting unit 312 on the substrate 100 at least partially overlap. That is, the orthographic projections of the encapsulation portions 401 corresponding to the adjacent first light-emitting units 311 and the second light-emitting units 312 located in the same first pixel repeating unit on the substrate 100 overlap, and the orthographic projections of the encapsulation portions 401 corresponding to the adjacent third light-emitting units 313 and the second light-emitting units 312 located in the same second pixel repeating unit on the substrate 100 overlap.

[0098] Optionally, as shown in Figures 8 and 9, the pixel columns include a first pixel column formed by alternating first and second light-emitting units 311 and 312 along a second direction Y, and a second pixel column formed by a plurality of third light-emitting units 313 arranged at intervals along a second direction X. The first and second pixel columns are alternately arranged along the first direction X, and the light-emitting units in the first pixel column and the light-emitting units in the second pixel column are staggered so that the third light-emitting unit 313 is located between two adjacent first and second light-emitting units 311 and 312. This can reduce the spacing between the third light-emitting unit 313 and the first and second light-emitting units 311 and 312, thereby increasing pixel density and thereby enhancing the luminous display effect.

[0099] When the first light-emitting units 311, the second light-emitting units 312, and the third light-emitting units 313 are arranged in the above manner, the first light-emitting units 311 and the third light-emitting units 313 are arranged along the third direction to form a first pixel repeating unit, and the second light-emitting units 312 and the third light-emitting units 313 are arranged along the third direction to form a second pixel repeating unit. The orthographic projections of the encapsulation portions 401 corresponding to adjacent first light-emitting units 311 and second light-emitting units 312 in the same first pixel repeating unit on the substrate 100 at least partially overlap, and the orthographic projections of the encapsulation portions 401 corresponding to adjacent third light-emitting units 313 and second light-emitting units 312 in the same second pixel repeating unit on the substrate 100 at least partially overlap.

[0100] In some optional embodiments, as shown in FIG11 , the orthographic projections of the encapsulation portions 401 corresponding to adjacent light-emitting structures on the substrate 100 completely overlap the orthographic projections of the isolation structures 200 between adjacent light-emitting units 310 on the substrate 100. That is, the edges of the periphery of the same encapsulation portion 401 overlap with the covering segments 401a of other encapsulation portions 401, thereby better addressing the issue of encapsulation failure of certain encapsulation portions 401. As shown in FIG8 and FIG9 , the orthographic projections of the encapsulation portions 401 corresponding to any two adjacent light-emitting units 310 on the substrate 100 at least partially overlap. This further addresses the issue of failure of certain encapsulation portions 401.

[0101] In some optional embodiments, as shown in Figures 2, 3, and 12, the light-emitting unit 310 includes a first light-emitting unit 311 and a second light-emitting unit 312, which are arranged adjacent to each other. The first light-emitting unit 311 and the second light-emitting unit 312 can be configured to emit light of the same or different colors. This embodiment of the present application uses the example of the first light-emitting unit 311 and the second light-emitting unit 312 emitting light of different colors.

[0102] Optionally, the packaging portion 401 is located on the side of the light-emitting unit 310 facing away from the substrate 100, and the packaging portion 401 covers the side wall of the isolation structure 200 facing the isolation opening 240 and extends to the side of the isolation structure 200 facing away from the substrate 100, that is, the packaging portion 401 not only covers the isolation opening 240, but also covers part of the isolation structure 200 surrounding the isolation opening 240, which can expand the distribution area of ​​the packaging portion 401 and improve the packaging effect of the packaging portion 401.

[0103] Optionally, as shown in Figures 1, 12, and 13, the multiple encapsulation portions 401 include a first encapsulation portion 410 for encapsulating the first light-emitting unit 311 and a second encapsulation portion 420 for encapsulating the second light-emitting unit 312. At least a portion of the second encapsulation portion 420 extends to the side of the first encapsulation portion 410 facing away from the substrate 100. This can expand the distribution area of ​​the second encapsulation portion 420 and improve the encapsulation effect of the second encapsulation portion 420. Furthermore, the fact that a portion of the first encapsulation portion 410 is covered by the second encapsulation portion 420 can improve the relative stability of the first encapsulation portion 410 and the isolation structure 200, thereby alleviating the problem of failure of the first encapsulation portion 410.

[0104] Optionally, as shown in Figures 1, 12, and 13, the light-emitting unit 310 further includes a third light-emitting unit 313, which is disposed adjacent to at least one of the first light-emitting unit 311 or the second light-emitting unit 312, and the encapsulation portion 401 includes a third encapsulation portion 430 that encapsulates the third light-emitting unit 313. The third encapsulation portion 430 is used to provide encapsulation protection for the third light-emitting unit 313. The light emission color of the third light-emitting unit 313 may be the same as or different from that of the first light-emitting unit 311 and the second light-emitting unit 312. The embodiment of the present application is described by taking the light emission colors of the first light-emitting unit 311, the second light-emitting unit 312, and the third light-emitting unit 313 as examples.

[0105] Optionally, the third encapsulation portion 430 extends to a side of at least one first encapsulation portion 410 facing away from the substrate 100. This can expand the distribution area of ​​the third encapsulation portion 430 and improve the encapsulation effect of the third encapsulation portion 430. Furthermore, since a portion of the first encapsulation portion 410 is covered by the third encapsulation portion 430, the relative position stability of the first encapsulation portion 410 and the isolation structure 200 can be improved, thereby alleviating the problem of encapsulation failure of the first encapsulation portion 410.

[0106] Optionally, the third encapsulation portion 430 extends to at least one side of the second encapsulation portion 420 facing away from the substrate 100. This can expand the distribution area of ​​the third encapsulation portion 430 and improve the encapsulation effect of the third encapsulation portion 430. Furthermore, since a portion of the second encapsulation portion 420 is covered by the third encapsulation portion 430, the relative position stability of the second encapsulation portion 420 and the isolation structure 200 can be improved, thereby alleviating the problem of encapsulation failure of the second encapsulation portion 420.

[0107] Optionally, the third encapsulation portion 430 extends to a side of at least one first encapsulation portion 410 facing away from the substrate 100, and the third encapsulation portion 430 extends to a side of at least one second encapsulation portion 420 facing away from the substrate 100. This further expands the distribution area of ​​the third encapsulation portion 430 and improves the encapsulation effect of the third encapsulation portion 430. Furthermore, the fact that portions of the first encapsulation portion 410 and the second encapsulation portion 420 are partially covered by the third encapsulation portion 430 can improve the relative stability of the second encapsulation portion 420 and the isolation structure 200, thereby alleviating the problem of encapsulation failure of the second encapsulation portion 420.

[0108] In some optional embodiments, as shown in Figures 12 to 14, the first packaging portion 410 includes a first segment 411 and a second segment 412 that are interconnected, the first segment 411 is located on the side of the light-emitting unit 310 away from the substrate 100 and covers the side wall of the isolation structure 200 facing the isolation opening 240, and the second segment 412 is located on the side of the isolation structure 200 away from the substrate 100; the second packaging portion 420 includes a third segment 421 and a fourth segment 422 that are interconnected, the third segment 421 is located on the side of the light-emitting unit 310 away from the substrate 100 and covers the side wall of the isolation structure 200 facing the isolation opening 240, and the fourth segment 422 is located on the side of the isolation structure 200 away from the substrate 100; wherein, at least a portion of the fourth segment 422 extends to the side of the second segment 412 away from the substrate 100.

[0109] In these optional embodiments, the first packaging portion 410 includes a first segment 411 and a second segment 412, wherein the second segment 412 covers a portion of the isolation structure 200 to expand the distribution area of ​​the first packaging portion 410. The second packaging portion 420 includes a third segment 421 and a fourth segment 422, wherein the fourth segment 422 covers the isolation structure 200 to expand the distribution area of ​​the second packaging portion 420. The second segment 412 and the fourth segment 422 are both located above the isolation structure 200. The second segment 412 and the fourth segment 422 may at least partially overlap on the isolation structure 200, such that the fourth segment 422 covers a portion of the second segment 412, thereby alleviating the problem of damage to the second segment leading to packaging failure.

[0110] Optionally, as shown in Figures 12 to 14, the second segment 412 and the fourth segment 422 at least partially overlap in the orthographic projection of the substrate 100, and form an overlapping area QA. The overlapping area QA is located within the orthographic projection range of the isolation structure 200 on the substrate 100, that is, the overlapping area QA is located above the isolation structure 200.

[0111] Optionally, the orthographic projections of the second segment 412 and the sixth segment 432 on the substrate 100 at least partially overlap, forming an overlapping region QA. Optionally, the orthographic projections of the sixth segment 432 and the fourth segment 422 on the substrate 100 at least partially overlap, forming an overlapping region QA. That is, as shown in FIG. 2 , the overlapping region QA can be formed by at least partially overlapping orthographic projections of any two of the second segment 412, the fourth segment 422, and the sixth segment 432 on the substrate 100.

[0112] Optionally, the orthographic projection area of ​​the overlapping region QA on the substrate 100 accounts for 15% to 75% of the orthographic projection area of ​​the top surface 201 of the isolation structure 200 facing away from the substrate 100 on the substrate 100. For example, the orthographic projection area of ​​the overlapping region QA on the substrate 100 accounts for 15%, 16%, 25%, 39%, 55%, 75%, etc. of the orthographic projection area of ​​the top surface 201 of the isolation structure 200 facing away from the substrate 100 on the substrate 100. This can improve the packaging performance of the packaging portion 401 affected by a too small area of ​​the overlapping region QA, and can also improve the incomplete removal of the packaging material layer due to an excessively large area of ​​the overlapping region QA and an excessively large distribution area of ​​the packaging portion 401, thereby affecting the preparation of subsequent film layers.

[0113] Optionally, as shown in Figures 12 to 14, the fourth segment 422 includes a first sub-segment 422a and a second sub-segment 422b. The first sub-segment 422a is connected between the third segment 421 and the second sub-segment 422b, and the second sub-segment 422b is located on the side of the second segment 412 facing away from the substrate 100. The fourth segment 422 extends along a curved path, with a portion of the fourth segment 422 (i.e., the second sub-segment 422b) located on the second segment 412, and another portion of the fourth segment 422 (i.e., the first sub-segment 422a) and the second segment 412 being arranged side by side.

[0114] Optionally, as shown in Figures 8 and 13, the second sub-segment 422b is connected to the peripheral side of the first sub-segment 422a away from the third segment 421, and the second sub-segment 422b is arranged around part of the first sub-segment 422a, that is, the second sub-segment 422b is connected to the edge of the first sub-segment 422a away from the third segment 421.

[0115] Optionally, as shown in FIG13 and FIG14 , the second segment 412 includes a first surface 412a and a second surface 412b oppositely disposed in the thickness direction Z of the display panel 10, with the first surface 412a facing the substrate 100 and the second surface 412b facing away from the substrate 100. The second segment 412 also includes a first side surface 412c connecting the first surface 412a and the second surface 412b. The orthographic projection of the second sub-segment 422b on the substrate 100 is located within the orthographic projection of the second surface 412b on the substrate 100. That is, the second sub-segment 422b is located above the first surface 412a, and the end of the second sub-segment 422b away from the first sub-segment 422a does not extend beyond the second segment 412, and the second sub-segment 422b does not extend into the first segment 411, thereby improving the effect of the excessive area of ​​the fourth segment 422 on subsequent film preparation.

[0116] Optionally, as shown in FIG13 and FIG14 , the orthographic projection of the first sub-segment 422a on the substrate 100 and the orthographic projection of the second surface 412b on the substrate 100 are staggered, so that the first sub-segment 422a and the second segment 412 can be arranged side by side.

[0117] Optionally, as shown in Figures 13 and 14, since the fourth segment 422 covers the second segment 412 and part of the fourth segment 422 is located on the side of the second segment 412 away from the substrate 100, during the preparation of the display panel 10, the first light-emitting material layer and the first packaging material layer can be first covered on the isolation structure 200, and then the first light-emitting material layer and the first packaging material layer are patterned to remove the first light-emitting material layer and the first packaging material layer in the area where the second isolation opening 240 and the third isolation opening 240 are located, thereby forming a first light-emitting unit 311 located in the first isolation opening 240 and the corresponding first packaging part 410. After the first light-emitting unit 311 and the first packaging part 410 are prepared, a second light-emitting material layer and a second packaging material layer are further arranged on the isolation structure 200, and the second light-emitting material layer and the second packaging material layer are patterned to remove the second light-emitting material layer and the second packaging material layer in the area where the first packaging part 410 and the third isolation opening 240 are located, forming a second light-emitting unit 312 and a corresponding second packaging part 420 located in the second isolation opening 240, the fourth segment 422 covers the second segment 412, and part of the fourth segment 422 is located on the side of the second segment 412 away from the substrate 100, and the second packaging part protects the first packaging part to prevent the first packaging part from being damaged.

[0118] Optionally, as shown in FIG13 , a distance H3 between the first subsegment 422a and the isolation structure 200 along the thickness direction Z of the display panel 10 is smaller than a distance H5 between the second subsegment 422b and the isolation structure 200 along the thickness direction Z of the display panel 10. That is, the distance between the second subsegment 422b and the isolation structure 200 is larger, so that a portion of the second segment 412 can be disposed between the first subsegment 422a and the isolation structure 200.

[0119] 13 , the second sub-segment 422b and the second segment 412 are spaced apart from each other along the thickness direction Z of the display panel 10 to form a first gap Q1. During the preparation of the second encapsulation portion 420, the second encapsulation material layer covers the second light-emitting material layer, and this portion of the second light-emitting material layer is subsequently etched away to form the first gap Q1.

[0120] Optionally, as shown in FIG13 , the second segment 412 and the isolation structure 200 are spaced apart along the thickness direction Z of the display panel 10 to form a second gap Q2. During the preparation of the first encapsulation portion 410, the first encapsulation material layer covers the first light-emitting material layer, and this portion of the first light-emitting material layer is subsequently etched away to form the second gap Q2.

[0121] 13 , the first subsegment 422a and the isolation structure 200 are spaced apart along the thickness direction Z of the display panel 10 to form a third gap Q3. That is, the third gap Q3 is formed when the second light emitting material layer between the first subsegment 422a and the isolation structure 200 is removed.

[0122] As shown in FIG13 , a gap is formed between at least one encapsulation portion 401, its adjacent encapsulation portion 401, and isolation structure 200; a second encapsulation layer 402 fills at least a portion of the gap. The gap may include at least one of a first gap Q1, a second gap Q2, and a third gap Q3. That is, the second encapsulation layer 402 fills at least one of the first gap Q1, the second gap Q2, and the third gap Q3.

[0123] Optionally, the above-mentioned second encapsulation layer 402 at least partially fills the first gap Q1; and / or: the second encapsulation layer 402 at least partially fills the second gap Q2; and / or: the second encapsulation layer 402 at least partially fills the third gap Q3, so that the second encapsulation layer 402 can provide support to the first sub-segment 422a, the second sub-segment 422b or the second segment 412.

[0124] Optionally, as shown in FIG12 , the light emitting unit 310 includes a first electrode 630 , a light emitting structure, and a second electrode 510 stacked in a direction away from the substrate 100 . The first electrode 630 and the second electrode 510 are used to drive the light emitting structure to emit light.

[0125] Optionally, a dimension H2 of the second gap Q2 along the thickness direction Z of the display panel 10 is greater than or equal to the sum of the thicknesses of the second electrode 510 and the light emitting structure in the first light emitting unit 311 .

[0126] In these optional embodiments, during the preparation of the first light-emitting unit 311, the first encapsulation material layer used to prepare the first encapsulation portion 410 covers the first conductive material layer used to prepare the second electrode 510 of the first light-emitting unit 311, and the first light-emitting material layer used to prepare the light-emitting structure of the first light-emitting unit 311. The first light-emitting material layer and the first conductive material layer that fall on the isolation structure 200 are removed to form a second gap Q2. Therefore, the dimension H2 of the second gap Q2 along the thickness direction Z of the display panel 10 is equal to the sum of the thicknesses of the second electrode 510 and the light-emitting structure in the first light-emitting unit 311. When a functional layer such as a light extraction layer is provided on the first light-emitting material layer, the light extraction material layer on the isolation structure 200 is also removed to form the second gap Q2. Therefore, the dimension H2 of the second gap Q2 along the thickness direction Z of the display panel 10 is greater than the sum of the thicknesses of the second electrode 510 and the light-emitting structure in the first light-emitting unit 311.

[0127] Optionally, a dimension H3 of the third gap Q3 along the thickness direction Z of the display panel 10 is greater than or equal to the sum of the thicknesses of the second electrode 510 and the light emitting structure in the second light emitting unit 312 .

[0128] In these optional embodiments, during the preparation of the second light-emitting unit 312, the second encapsulation material layer used to prepare the second encapsulation portion 420 covers the second conductive material layer used to prepare the second electrode 510 of the second light-emitting unit 312, and the second light-emitting material layer used to prepare the light-emitting structure of the second light-emitting unit 312. The second light-emitting material layer and the second conductive material layer that fall on the isolation structure 200 are removed to form a third gap Q3. Therefore, the dimension H3 of the third gap Q3 along the thickness direction Z of the display panel 10 is equal to the sum of the thicknesses of the second electrode 510 and the light-emitting structure in the second light-emitting unit 312. When a functional layer such as a light extraction layer is provided on the second light-emitting material layer, the light extraction material layer on the isolation structure 200 is also removed to form the third gap Q3. Therefore, the dimension H3 of the third gap Q3 along the thickness direction Z of the display panel 10 is greater than the sum of the thicknesses of the second electrode 510 and the light-emitting structure in the second light-emitting unit 312.

[0129] Optionally, a dimension H1 of the first gap Q1 along the thickness direction Z of the display panel 10 is greater than or equal to the sum of the thicknesses of the second electrode 510 and the light emitting structure in the second light emitting unit 312 .

[0130] In these optional embodiments, during the preparation of the second light-emitting unit 312, the second encapsulation material layer used to prepare the second encapsulation portion 420 covers the second conductive material layer used to prepare the second electrode 510 of the second light-emitting unit 312 and the second light-emitting material layer used to prepare the light-emitting structure of the second light-emitting unit 312. The second light-emitting material layer and the second conductive material layer located on the second segment 412 are removed to form a first gap Q1. Therefore, the dimension H1 of the first gap Q1 along the thickness direction Z of the display panel 10 is equal to the sum of the thicknesses of the second electrode 510 and the light-emitting structure in the second light-emitting unit 312. When a functional layer such as a light extraction layer is provided on the second light-emitting material layer, the light extraction material layer on the second segment 412 is also removed to form the first gap Q1. Therefore, the dimension H1 of the first gap Q1 along the thickness direction Z of the display panel 10 is greater than the sum of the thicknesses of the second electrode 510 and the light-emitting structure in the second light-emitting unit 312.

[0131] Optionally, a dimension H2 of the second gap Q2 along the thickness direction Z of the display panel 10 is smaller than a dimension H1 of the first gap Q1 along the thickness direction Z of the display panel 10. The larger dimension of the first gap Q1 allows the etching liquid to better enter the third gap Q3 through the first gap Q1 to remove the second light-emitting material layer at that location.

[0132] And / or: a dimension H2 of the second gap Q2 along the thickness direction Z of the display panel 10 is smaller than a dimension H3 of the third gap Q3 along the thickness direction Z of the display panel 10. The larger dimension of the third gap Q3 allows the etching liquid to better enter the third gap Q3 through the first gap Q1 to remove the second light-emitting material layer at that location.

[0133] And / or: a dimension H1 of the first gap Q1 along the thickness direction Z of the display panel 10 is equal to a dimension H3 of the third gap Q3 along the thickness direction Z of the display panel 10. The third gap Q3 and the first gap Q1 are formed by removing a portion of the second light-emitting material layer on the side of the first sub-segment 422a and the second sub-segment 422b facing the substrate 100, and thus the third gap Q3 and the first gap Q1 may be the same.

[0134] Optionally, as shown in Figures 7 and 14, the light-emitting layer 300 further includes redundant units 320, at least some of which are located within the third gap Q3. In these optional embodiments, during the fabrication of the light-emitting unit 310, some of the light-emitting material may fall into the third gap Q3. Because the second segment 412 and the fourth segment 422 overlap to form the first gap Q1, the etching solution has difficulty flowing into the third gap Q3, resulting in residual light-emitting material and the formation of redundant units 320. The redundant units 320 can provide support for a portion of the fourth segment 422, alleviating the problem of breakage at the junction between the fourth segment 422 and the third segment 421.

[0135] Optionally, as shown in FIG14 , the redundant unit 320 encloses a hollow portion Q5, and the orthographic projection of the hollow portion Q5 on the substrate 100 is located within the orthographic projection of the isolation structure 200 on the substrate 100. When preparing the second encapsulation layer 402, the second encapsulation layer 402 is deposited into the hollow portion Q5, thereby making the second encapsulation layer 402 contact with the isolation structure 200, thereby improving the encapsulation effect of the isolation structure 200.

[0136] In some optional embodiments, as shown in Figures 7 and 14 , a redundant electrode 520 exists between at least a portion of the fourth segment 422 and the isolation structure 200. In these optional embodiments, during the preparation of the second electrode 510, some electrode material may fall into the third gap Q3, making it difficult for the etching solution to flow into the third gap Q3, resulting in residual electrode material and forming the redundant electrode 520. The redundant electrode 520 can provide support for a portion of the fourth segment 422, thereby alleviating the problem of easy breakage at the connection between the fourth segment 422 and the third segment 421.

[0137] Optionally, when the display panel 10 includes the third gap Q3 , the redundant electrode 520 is located in the third gap Q3 to improve the problem of easy breakage at the connection position between the fourth segment 422 and the third segment 421 .

[0138] Optionally, when the light-emitting unit 310 includes a first electrode 630, a light-emitting structure, and a second electrode 510 stacked in a direction away from the substrate 100, the second electrode 510 and the redundant electrode 520 are made of the same material. This allows the redundant electrode 520 and the second electrode 510 to be manufactured and formed in the same process step, thereby simplifying the manufacturing process of the display panel 10.

[0139] In some optional embodiments, as shown in FIG10 , at least a portion of the second segment 412 and a portion of the fourth segment 422 are spaced apart. For example, a portion of the second segment 412 and a portion of the fourth segment 422 overlap, and a portion of the second segment 412 and a portion of the fourth segment 422 are spaced apart. The user can select the overlapping area QA and the spaced apart area based on process and usage requirements.

[0140] Optionally, referring to the above, as shown in Figures 13 and 14, the fourth segment 422 includes a first sub-segment 422a and a second sub-segment 422b, the first sub-segment 422a includes a first main body portion 422a1 and a connecting portion 422a2, the first main body portion 422a1 is connected to the third segment 421, the connecting portion 422a2 is connected between the first main body portion 422a1 and the second sub-segment 422b, and the orthographic projection of the first main body portion 422a1 on the substrate 100 and the orthographic projection of the second segment 412 on the substrate 100 are arranged at a distance.

[0141] In these optional embodiments, the first sub-segment 422a extends along a curved path to form a first main portion 422a1 and a connecting portion 422a2. The first main portion 422a1 is used to connect to the third segment 421. The first main portion 422a1 and the second segment 412 are spaced apart, which can improve the mutual influence between the first packaging portion 410 and the second packaging portion 420.

[0142] 13 and 14 , a first gap Q4 is formed between the connecting portion 422a2 and the first side surface 412c. During the etching process of the second encapsulation portion 420 , the etching liquid can enter the third gap Q3 from the first gap Q4 to remove the redundant second light emitting material layer.

[0143] Optionally, as shown in Figures 13 and 14, the second segment 412 has a first side surface 412c facing the first sub-segment 422a, and the dimension H4 of the first gap Q4 along the normal direction of the first side surface 412c is smaller than the dimension H1 of the first gap Q1 along the thickness direction Z of the display panel 10, so that the size of the first gap Q4 is smaller and the size of the first gap Q1 is larger, so that the etching liquid can better enter the third gap Q3 from the first gap Q1 and the first gap Q4.

[0144] Optionally, as shown in Figures 13 and 14, the angle between the first side surface 412c and the first surface 412a is less than 90 degrees, so that the first side surface 412c is inclined toward the first segment 411 in a direction away from the substrate 100, and the etching liquid can flow along the first side surface 412c into the third gap Q3.

[0145] In other optional embodiments, as shown in FIG2 , FIG15 and FIG16 , at least part of the second segment 412 and the fourth segment 422 are connected to each other, so that the second segment 412 and the fourth segment 422 can support each other, thereby better improving the technical problem of packaging failure of the packaging part 401 .

[0146] Optionally, as shown in Figures 15 and 16, the second segment 412 includes the above-mentioned first side 412c, and the fourth segment 422 and the first side 412c are connected to each other, so that the second segment 412 and part of the fourth segment 422 can support each other, thereby better improving the technical problem of packaging failure of the packaging part.

[0147] [Corrected on 23.08.2024 in accordance with Rule 91] Optionally, as shown in Figures 15 and 16, the angle between the first side surface 412c and the first surface 412a is greater than or equal to 90 degrees, and the first side surface 412c extends close to the fourth segment 422 in a direction away from the isolation structure 200, so as to facilitate the connection between the first side surface 412c and the fourth segment 422.

[0148] Optionally, as shown in Figures 15 and 16, when the fourth segment 422 includes the above-mentioned first sub-segment 422a and second sub-segment 422b, and the first sub-segment 422a includes a first main segment and a connecting portion 422a2, the first side 412c can be connected to the connecting position of the first main segment and the connecting portion 422a2.

[0149] In some optional embodiments, as shown in FIG3 and FIG13 to FIG16 , the display panel 10 further includes a second encapsulation layer 402. The second encapsulation layer 402 is located on a side of the first encapsulation layer 400 facing away from the substrate 100. The second encapsulation layer 402 contacts the isolation structure 200. This increases the area of ​​the isolation structure 200 covered by the encapsulation layer and improves the sealing effect of the encapsulation layer.

[0150] In some optional embodiments, as shown in FIG3 , the encapsulation portion 401 is located on a side of the light-emitting unit 310 facing away from the substrate 100. The encapsulation portion 401 also covers the sidewall of the isolation structure 200 facing the isolation opening 240 and extends to the side of the isolation structure 200 facing away from the substrate 100. A gap is formed between at least one encapsulation portion 401 and its adjacent encapsulation portion 401 and the isolation structure 200. The gap may include at least one of the first gap Q1, the second gap Q2, the third gap Q3, and the first gap Q4. Specifically, the second encapsulation layer 402 further fills at least a portion of the gap, i.e., the second encapsulation layer 402 may fill any one, two, or three of the first gap Q1, the second gap Q2, the third gap Q3, and the first gap Q4; may fill all of the first gap Q1, the second gap Q2, the third gap Q3, and the first gap Q4; or may fill any one or more of the first gap Q1, the second gap Q2, the third gap Q3, and the first gap Q4, but not completely.

[0151] Optionally, as shown in FIG. 13 to FIG. 16 , part of the second encapsulation layer 402 may be located in the first gap Q1 , that is, part of the second encapsulation layer 402 is located in the second segment 412 and the fourth segment 422 to ensure the stability of the relative positions of the second segment 412 and the fourth segment 422 .

[0152] Optionally, as shown in Figures 13 to 16, part of the second packaging layer 402 can be located in the above-mentioned second gap Q2, that is, part of the second packaging layer 402 is located between the second segment 412 and the isolation structure 200 to ensure the stability of the relative position between the second segment 412 and the isolation structure 200.

[0153] Optionally, as shown in Figures 13 to 16, part of the second packaging layer 402 can be located in the above-mentioned third gap Q3, that is, part of the second packaging layer 402 can be located between the first sub-segment 422a of the fourth segment 422 and the isolation structure 200 to ensure the stability of the relative position between the first sub-segment 422a and the isolation structure 200.

[0154] Optionally, as shown in FIG. 13 to FIG. 16 , the display panel 10 further includes a third encapsulation layer 403 , and the third encapsulation layer 403 is located on a side of the second encapsulation layer 402 facing away from the substrate 100 .

[0155] Optionally, the material of the second encapsulation layer 402 includes an organic material, so that the second encapsulation layer 402 has good thickness and fluidity, and the second encapsulation layer 402 can flow to the first gap Q1, the second gap Q2, the third gap Q3 and the first gap Q4.

[0156] Optionally, the material of the third encapsulation layer 403 includes an inorganic material, so that the third encapsulation layer 403 has good compactness.

[0157] Optionally, the material of the first encapsulation layer 400 includes an inorganic material, so that the first encapsulation layer 400 has good compactness.

[0158] In some optional embodiments, as shown in Figures 2 and 17, the isolation structure 200 has a top surface 201 facing away from the substrate 100, the encapsulation portion 401 is located on the side of the light-emitting unit 310 facing away from the substrate 100, the encapsulation portion 401 further covers the sidewall of the isolation structure 200 facing the isolation opening 240 and extends to the side of the isolation structure 200 facing away from the substrate 100, and is formed in a covering segment 401a on the side of the isolation structure 200 facing away from the substrate 100; along the direction from the isolation opening 240 to the adjacent isolation opening 240, the orthographic projection of the top surface 201 on the substrate 100 has a first width D1, and the orthographic projection of the covering segment 401a located on the side of the top surface 201 facing away from the substrate 100 on the substrate 100 has a second width D2, that is, along a cross section perpendicular to the extension direction of the isolation structure, the top surface has the first width D1, and the covering segment located on the side of the top surface facing away from the substrate has the second width D2, and the first width D1 and the second width D2 satisfy:

[0159] In these optional embodiments, the top surface 201 of the isolation structure 200 has a first width D1 when projected onto the substrate 100, covering When the second encapsulation layer 402 is subsequently prepared, the contact area between the second encapsulation layer 402 and the encapsulation part 401 is increased, thereby increasing the adhesion between the second encapsulation layer 402 and the encapsulation part 401, improving the problem of the second encapsulation layer 402 being prone to film shedding and bubbling in a high temperature and high humidity environment, and improving the performance of the display panel 10.

[0160] Optionally, the covering segments 401a surrounding the light-emitting units 310 emitting the same color have the same second width D2. The encapsulation portions 401 corresponding to the light-emitting units 310 emitting the same color can be manufactured and formed in the same process step. When the second width D2 corresponding to the light-emitting units 310 emitting the same color is the same, the manufacturing of the encapsulation portions 401 corresponding to the light-emitting units 310 emitting the same color can be simplified.

[0161] For example, when the light-emitting unit 310 includes the above-mentioned first light-emitting unit 311, second light-emitting unit 312 and third light-emitting unit 313, the covering section 401a around the first light-emitting unit 311 has the same second width D2, which can simplify the preparation of the packaging part 401 corresponding to the multiple first light-emitting units 311.

[0162] When the packaging part 401 includes the above-mentioned first packaging part 410, second packaging part 420 and third packaging part 430, and the first packaging part 410 includes the first segment 411 and the second segment 412, the second packaging part 420 includes the third segment 421 and the fourth segment 422, and the third packaging part 430 includes the fifth segment 431 and the sixth segment 432, the covering segment 401a of the first packaging part 410 can be the second segment 412, the covering segment 401a of the second packaging part 420 can be the fourth segment 422, and the covering segment 401a of the third packaging part 430 can be the sixth segment 432.

[0163] In some optional embodiments, as shown in Figures 2, 18, and 19, the width of the second segment 412 is the first sub-width d1, and the width of the fourth segment 422 adjacent to the first light-emitting unit 311 is the second sub-width d2. That is, along a cross section perpendicular to the extension direction of the isolation structure 200 between the first light-emitting unit 311 and the second light-emitting unit 312, in the second segment 412 and the fourth segment 422 located on the same isolation structure 200, or in the second segment 412 and the fourth segment 422 that overlap, the width of the second segment 412 is the first sub-width d1, and the width of the fourth segment 422 is the second sub-width d2. The first sub-width d1 and the second sub-width d2 satisfy the following conditions:

[0164] d1≤d2.

[0165] In these optional embodiments, in the packaging portion 401 located on the side of the second light-emitting unit 312 facing away from the substrate 100, the second sub-width d2 of a portion of the fourth segment 422 is greater than or equal to the first sub-width d1 of the second segment 412, that is, the fourth segment 422 of the packaging portion 401 on the side of the second light-emitting unit 312 facing away from the substrate 100 is further lengthened on the side close to the first light-emitting unit 311, thereby increasing the contact area between the packaging portion 401 on the side of the second light-emitting unit 312 facing away from the substrate 100 and the second packaging layer 402, thereby increasing the adhesion between the second packaging layer 402 and the second segment 412 corresponding to the second light-emitting unit 312.

[0166] Optionally, the first sub-width d1 and the first width D1 satisfy:

[0167] In these optional embodiments, the first sub-width d1 is greater than or equal to one-third of the first width D1, which can improve the problem that the first sub-width d1 is too small, the contact area between the second segment 412 and the second encapsulation layer 402 is too small, and the adhesion is low, which causes the second encapsulation layer 402 to easily peel off and cause bubbling in a high temperature and high humidity environment. The first sub-width d1 is less than or equal to one-half of the first width D1, which can improve the problem that the first sub-width d1 is too large. If the first sub-width d1 is too large, when the second encapsulation part 420 and the third encapsulation part 430 are subsequently prepared, the fourth segment 422 or the sixth segment 432 is more likely to be located on the side of the second segment 412 corresponding to the first light-emitting unit 311 that is away from the substrate 100. The larger number of fourth segments 422 or sixth segments 432 is farther away from the isolation structure 200, making the fourth segment 422 or the sixth segment 432 more likely to peel off when subjected to external impact.

[0168] Optionally, the second light emitting unit 312 may be located between the first light emitting unit 311 and the third light emitting unit 313 .

[0169] Optionally, the second sub-width d2 and the first width D1 satisfy:

[0170] or,

[0171] In these optional embodiments, the second sub-width d2 is greater than or equal to one-third of the first width D1. This can improve the problem where the second sub-width d2 is too small, resulting in an excessively small contact area between the fourth segment 422 and the second encapsulation layer 402 and low adhesion, which can easily cause the second encapsulation layer 402 to peel off and cause bubbling in high temperature and high humidity environments. The second sub-width d2 is greater than or equal to one-half of the first width D1, i.e., the fourth segment 422 is further extended on the side closest to the first light-emitting unit 311, increasing the contact area between the encapsulation portion 401 and the second encapsulation layer 402 on the side of the second light-emitting unit 312 facing away from the substrate 100, thereby increasing the adhesion between the second encapsulation layer 402 and the fourth segment 422.

[0172] Optionally, as shown in Figures 2, 20, and 21, the second width D2 of the second segment 412 is the first sub-width d1, that is, the width of the sixth segment 432 near the first light-emitting unit 311 is the third sub-width d3. That is, along a cross section perpendicular to the extension direction of the isolation structure 200 between the first light-emitting unit 311 and the third light-emitting unit 313, in the second segment 412 and the sixth segment 432 located on the same isolation structure 200, or in the second segment 412 and the sixth segment 432 that overlap each other, the width of the second segment 412 is the first sub-width d1, and the width of the sixth segment 432 is the third sub-width d3. The first sub-width d1 and the third sub-width d3 satisfy the following conditions:

[0173] d1≤d3.

[0174] In these optional embodiments, the third sub-width d3 of the sixth segment 432 is greater than or equal to the first sub-width d1 of the second segment 412, that is, the sixth segment 432 is further lengthened on the side close to the first light-emitting unit 311, thereby increasing the contact area between the third encapsulation part 430 and the second encapsulation layer 402, thereby increasing the adhesion between the second encapsulation layer 402 and the sixth segment 432.

[0175] Optionally, the third sub-width d3 and the first width D1 satisfy:

[0176] or,

[0177] In these optional embodiments, the third sub-width d3 is greater than or equal to one-third of the first width D1. This can improve the problem where the second sub-width d2 is too small, resulting in an excessively small contact area between the sixth segment 432 and the second encapsulation layer 402 and low adhesion, which can easily cause the second encapsulation layer 402 to peel off and cause bubbling in high temperature and high humidity environments. The third sub-width d3 is greater than or equal to one-half of the first width D1, meaning that the sixth segment 432 is further extended on the side closest to the first light-emitting unit 311, increasing the contact area between the third encapsulation portion 430 and the second encapsulation layer 402, thereby increasing the adhesion between the second encapsulation layer 402 and the sixth segment 432.

[0178] Optionally, as shown in Figures 2, 22, and 23, the second width D2 of the fourth segment 422 near the third light-emitting unit 313 is a fourth sub-width d4, and the second width D2 of the sixth segment 432 near the second light-emitting unit 312 is a fifth sub-width d5. That is, along a cross section perpendicular to the extension direction of the isolation structure 200 between the second light-emitting unit 312 and the third light-emitting unit 313, in the fourth segment 422 and the sixth segment 432 located on the same isolation structure 200, or in the fourth segment 422 and the sixth segment 432 that overlap with each other, the width of the fourth segment 422 is the fourth sub-width d4, and the width of the sixth segment 432 is the fifth sub-width d5. The fourth sub-width d4 and the fifth sub-width d5 ​​satisfy the following conditions:

[0179] d4≤d5.

[0180] In these optional embodiments, the fifth sub-width d5 ​​is greater than or equal to the fourth sub-width d4, that is, the sixth segment 432 is further lengthened on the side close to the second light-emitting unit 312, thereby increasing the contact area between the third packaging part 430 and the second packaging layer 402, thereby increasing the adhesion between the second packaging layer 402 and the third packaging part 430.

[0181] Optionally, the fourth sub-width d4 and the first width D1 satisfy:

[0182] In these optional embodiments, the fourth sub-width d4 is greater than or equal to one-third of the first width D1, which can improve the problem that the fourth sub-width d4 is too small, resulting in an excessively small contact area between the fourth segment 422 and the second encapsulation layer 402 and low adhesion, which can cause the second encapsulation layer 402 to easily peel off and cause bubbling in a high temperature and high humidity environment. The fourth sub-width d4 is less than or equal to one-half of the first width D1, which can improve the problem that the fourth sub-width d4 is too large, so that when the third encapsulation portion 430 is subsequently prepared, the sixth segment 432 will be more located on the side of the second segment 412 corresponding to the second light-emitting unit 312 facing away from the substrate 100. The larger number of sixth segments 432 is farther away from the isolation structure 200, making the sixth segment 432 more likely to peel off when subjected to external impact.

[0183] Optionally, the fifth sub-width d5 ​​and the first width D1 satisfy:

[0184] or,

[0185] In these optional embodiments, the fifth sub-width d5 ​​is greater than or equal to one-third of the first width D1. This can improve the problem where the fifth sub-width d5 ​​is too small, resulting in an excessively small contact area between the sixth segment 432 and the second encapsulation layer 402 and low adhesion, which can easily cause the second encapsulation layer 402 to peel off and cause bubbling in high temperature and high humidity environments. The fifth sub-width d5 ​​is greater than or equal to one-half of the first width D1, i.e., the sixth segment 432 is further extended on the side closest to the first light-emitting unit 311, thereby increasing the contact area between the sixth segment 432 and the second encapsulation layer 402 and improving the adhesion between the second encapsulation layer 402 and the sixth segment 432.

[0186] In some optional embodiments, as shown in Figures 3 and 4, the isolation structure 200 includes a first layer 210 and a second layer 220, the second layer 220 is located on the side of the first layer 210 facing away from the substrate 100, and the orthographic projection of the first layer 210 on the substrate 100 is located within the orthographic projection of the second layer 220 on the substrate 100.

[0187] In these optional embodiments, the first layer 210 and the second layer 220 are arranged to form the isolation structure 200. The orthographic projection of the first layer 210, which is arranged near the substrate 100, is located within the orthographic projection of the second layer 220 on the substrate 100. The area of ​​the second layer 220 is larger than that of the first layer 210. The second layer 220 covers the surface of the first layer 210 near the second layer 220. In this case, the first layer 210 is recessed relative to the second layer 220 in a direction away from the isolation opening 240. When preparing the light-emitting layer 300, a large drop in height is generated at the edge of the isolation structure 200, and the first layer 210 is recessed relative to the second layer 220. This makes it difficult for the light-emitting layer 300 to connect at the edge of the isolation structure 200, resulting in breakage. The breakage of the light-emitting layer 300 forms disconnected light-emitting units 310.

[0188] Optionally, the orthographic projection of the first layer 210 on the substrate 100 is smaller than the orthographic projection of the second layer 220 on the substrate 100 , so as to form a recess under the second layer 220 .

[0189] Optionally, the first layer 210 includes a conductive material, and the second electrode 510 may be connected to the first layer 210 , so that a plurality of second electrodes 510 may be interconnected to form a surface electrode through the isolation structure 200 .

[0190] Optionally, the second layer 220 includes a conductive material or an insulating material.

[0191] Optionally, both the first layer 210 and the second layer 220 include metal materials, and the materials of the first layer 210 and the second layer 220 are different, so that the first layer 210 and the second layer 220 of different sizes can be prepared according to the different etching rates of the first layer 210 and the second layer 220.

[0192] Optionally, as shown in Figures 10 and 12 to 16, the isolation structure 200 further includes a third layer 230 located on the side of the first layer 210 facing the substrate 100, and the orthographic projection of the first layer 210 on the substrate 100 is located within the orthographic projection of the third layer 230 on the substrate 100. When the first layer 210 is side-engraved, the third layer 230 can provide protection for the film layer on the substrate 100 side.

[0193] As shown in FIG1 to FIG23, another embodiment of the first aspect of the present application further provides a display panel 10, which includes: a substrate 100; an isolation structure 200 located on one side of the substrate 100, the isolation structure 200 enclosing an isolation opening 240 and having a top surface 201 facing away from the substrate 100; a light-emitting layer 300 located on one side of the substrate 100, the light-emitting layer 300 including light-emitting units 310 at least partially located in the isolation opening 240; a first encapsulation layer 400 including a plurality of encapsulation portions 401 for encapsulating each light-emitting unit 310; Among them, the packaging part 401 is located on the side of the light-emitting unit 310 away from the substrate 100, and the packaging part 401 also covers the side wall of the isolation structure 200 facing the isolation opening 240 and extends to the side of the isolation structure 200 away from the substrate 100, and is formed in the covering section 401a on the side of the isolation structure 200 away from the substrate 100. The covering section 401a of at least one packaging part 401 includes a first area and a second area. Along the thickness direction Z of the substrate 100, the distance from the first area to the top surface 201 is different from the distance from the second area to the top surface 201.

[0194] In these optional embodiments, the display panel 10 includes a substrate 100, an isolation structure 200, a light-emitting layer 300, and a first encapsulation layer 400. The isolation structure 200 is disposed on the substrate 100 and encloses a plurality of isolation openings 240 to separate the light-emitting layer 300 into mutually disconnected light-emitting units 310, thereby reducing crosstalk of carriers within the light-emitting layer 300 and improving the display effect of the display panel 10. Furthermore, the light-emitting units 310 do not require the use of a precision mask, which can reduce the development and use of precision masks and reduce manufacturing costs. The covering section 401a of the encapsulation portion 401 includes a first region and a second region. As shown in FIG9 , the first region and the second region are located on different sides of the light-emitting unit 310 in the circumferential direction, and the first region and the second region are at different heights relative to the substrate 100. When the covering section 401a overlaps with other encapsulation portions 401, the first region and the second region can easily overlap with the encapsulation portions 401 corresponding to different light-emitting units 310.

[0195] In some optional embodiments, as shown in Figures 2 and 3, at least some of the covering segments 401a of the packaging portion 401 corresponding to the light-emitting units 310 at least partially overlap in their orthographic projections on the substrate 100. This can improve the problem of failure of the covered packaging portion 401.

[0196] As mentioned above, optionally, the light-emitting unit 310 includes a first light-emitting unit 311, a second light-emitting unit 312, and a third light-emitting unit 313 of different colors. The encapsulation portion 401 includes a first encapsulation portion 410 for encapsulating the first light-emitting unit 311, a second encapsulation portion 420 for encapsulating the second light-emitting unit 312, and a third encapsulation portion 430 for encapsulating the third light-emitting unit 313. The first encapsulation portion 410 includes a first segment 411 and a second segment 412, the second encapsulation portion 420 includes a third segment 421 and a fourth segment 422, and the third encapsulation portion 430 includes a fifth segment 431 and a sixth segment 432. The second segment, the fourth segment, and the sixth segment are all covering segments 401a of the first encapsulation portion 410, the second encapsulation portion 420, and the third encapsulation portion 430, respectively.

[0197] Optionally, the first light-emitting unit 311 and the second light-emitting unit 312 are arranged adjacent to each other, and at least part of the fourth segment 422 can extend to the side of the second segment 412 facing away from the substrate 100 , that is, part of the fourth segment 422 covers the second segment 412 .

[0198] Optionally, as shown in Figures 12 and 13 , at least two regions in the second segment 412 of the same first encapsulation portion 410 have the same distance from the top surface 201. For example, when the first encapsulation portion 410 is fabricated before the second encapsulation portion 420 and the third encapsulation portion 430, the aforementioned second gap Q2 exists between the second segment 412 of the first encapsulation portion 410 and the isolation structure 200, and the second gap Q2 is formed by removing the first light-emitting material layer and the first conductive material layer at those locations. Therefore, at least two regions in the second segment 412 of the same first encapsulation portion 410 have the same distance from the top surface 201.

[0199] Optionally, as shown in FIG. 2 , FIG. 13 , and FIG. 14 , and referring to the above, the fourth segment 422 may include a first sub-segment 422a and a second sub-segment 422b. The second sub-segment 422b extends to a side of the second segment facing away from the substrate. The first sub-segment 422a and the second sub-segment 422b respectively form a first region and a second region of the second encapsulation portion. The distance between the first sub-segment 422a and the top surface 201 along the thickness direction Z of the display panel 10 and the distance between the second sub-segment 422b and the top surface 201 along the thickness direction Z of the display panel 10 are different. Because the second sub-segment 422b covers the second segment 412 and the first sub-segment 422a and the second segment 412 are side by side, the first sub-segment 422a and the second sub-segment 422b have different distances from the top surface 201. Furthermore, a distance between the first sub-segment 422 a and the top surface 201 along the thickness direction Z of the display panel 10 is smaller than a distance between the second sub-segment 422 b and the top surface 201 along the thickness direction Z of the display panel 10 .

[0200] Optionally, as shown in FIG12 , and referring to the above, the third light-emitting unit is further disposed adjacent to at least one of the first and second light-emitting units. When the third encapsulation portion 430 includes a fifth segment 431 and a sixth segment 432, the orthographic projection of the sixth segment 432 on the substrate 100 overlaps with at least one of the orthographic projections of the second segment 412 or the fourth segment 422 on the substrate 100. For example, the sixth segment 432 further extends at least partially to a side of the second segment 412 or the fourth segment 422 facing away from the substrate 100.

[0201] Optionally, as shown in Figure 21, the sixth segment 432 includes a third sub-segment 432a and a fourth sub-segment 432b, the third sub-segment 432a is connected between the fifth segment 431 and the fourth sub-segment 432b, the fourth sub-segment 432b is located on the side of the second segment 412 away from the substrate 100, the third sub-segment 432a and the fourth sub-segment 432b respectively form the first area and the second area of ​​the third packaging part, and the distance H6 between the third sub-segment 432a and the top surface 201 along the thickness direction Z of the display panel 10 is different from the distance H7 between the fourth sub-segment 432b and the top surface 201 along the thickness direction Z of the display panel 10.

[0202] In these optional embodiments, since the fourth sub-segment 432b covers the second segment 412, the distance H6 between the third sub-segment 432a and the top surface 201 along the thickness direction Z of the display panel 10 is different from the distance H7 between the fourth sub-segment 432b and the top surface 201 along the thickness direction Z of the display panel 10.

[0203] Optionally, as shown in FIG21 , the sixth segment 432 includes a third sub-segment 432a and a fifth sub-segment 432c. The third sub-segment 432a is connected between the fifth segment 431 and the fifth sub-segment 432c. The fifth sub-segment 432c is located on a side of the fourth segment 422 facing away from the substrate 100. The third sub-segment 432a and the fifth sub-segment 432c respectively form a first region and a second region of the third encapsulation portion. A distance H6 between the third sub-segment 432a and the top surface 201 along the thickness direction Z of the display panel 10 is different from a distance H8 between the fifth sub-segment 432c and the top surface 201 along the thickness direction Z of the display panel 10. Because the fifth sub-segment 432c covers the third segment 421, the distance H6 between the third sub-segment 432a and the top surface 201 along the thickness direction Z of the display panel 10 is different from a distance H8 between the fifth sub-segment 432c and the top surface 201 along the thickness direction Z of the display panel 10.

[0204] Optionally, as shown in FIG9 , the orthographic projections of the first region and the second region of the same packaging portion and the packaging portions 401 corresponding to the light-emitting units 310 of different colors on the substrate 100 at least partially overlap.

[0205] In these optional embodiments, the packaging parts 401 corresponding to the light-emitting units 310 of the same color can be prepared in the same process step, and the packaging parts 401 corresponding to the light-emitting units 310 of different colors can be prepared and formed in different process steps, and the first region and the second region can overlap with the packaging parts 401 prepared and formed in different steps respectively.

[0206] Optionally, as shown in FIG21 , the sixth segment 432 includes a third sub-segment 432a connected to the fifth segment 431 and a fourth sub-segment 432b and a fifth sub-segment 432c respectively connected to the third sub-segment 432a. The fourth sub-segment 432b and the fifth sub-segment 432c are sequentially arranged along the circumference of the third sub-segment 432a. The fourth sub-segment 432b is located on the side of the second segment 412 facing away from the substrate 100, and the fifth sub-segment 432c is located on the side of the fourth segment 422 facing away from the substrate 100. On one side, any two of the third sub-segment 432a, the fourth sub-segment 432b and the fifth sub-segment 432c form the first area and the second area of ​​the third packaging part, and at least two of the distance H6 between the third sub-segment 432a and the top surface 201 along the thickness direction Z of the display panel 10, the distance H7 between the fourth sub-segment 432b and the top surface 201 along the thickness direction Z of the display panel 10, and the distance H8 between the fifth sub-segment 432c and the top surface 201 along the thickness direction Z of the display panel 10 are different. The fourth sub-segment 432b is located on the side of the second segment 412 away from the substrate 100, and the fifth sub-segment 432c is located on the side of the fourth segment 422 away from the substrate 100, that is, the fourth sub-segment 432b of the third packaging part covers part of the first packaging part, and the fifth sub-segment 432c of the third packaging part covers part of the second packaging part, thereby making at least two of the distance H6 between the third sub-segment 432a and the top surface 201 along the thickness direction Z of the display panel 10, the distance H7 between the fourth sub-segment 432b and the top surface 201 along the thickness direction Z of the display panel 10, and the distance H8 between the fifth sub-segment 432c and the top surface 201 along the thickness direction Z of the display panel 10 different.

[0207] The embodiment of the second aspect of the present application further provides a display device, comprising the display panel 10 of any of the above-mentioned embodiments of the first aspect. Since the display device provided by the embodiment of the second aspect of the present application comprises the display panel 10 of any of the above-mentioned embodiments of the first aspect, the display device provided by the embodiment of the second aspect of the present application has the beneficial effects of the display panel 10 of any of the above-mentioned embodiments of the first aspect, which will not be further elaborated here.

[0208] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0209] An embodiment of a third aspect of the present application provides a method for manufacturing a display panel. Please refer to FIG. 1 to FIG. 23 together with FIG. 24 . The manufacturing method includes:

[0210] Step S01 : forming an isolation structure 200 on a substrate. The isolation structure 200 encloses a plurality of isolation openings 240 , wherein the isolation openings 240 include a first isolation opening and a second isolation opening.

[0211] Step S02 : forming a first light emitting unit 311 and a first encapsulation portion 410 at least partially disposed in the first isolation opening.

[0212] Step S03 : forming a second light emitting unit 312 and a second encapsulation portion 420 at least partially disposed in the second isolation opening, and partially extending the second encapsulation portion 420 onto the first encapsulation portion 410 .

[0213] In the embodiment of the present application, the isolation structure 200 and the isolation opening are first prepared. Then, the first light-emitting unit 311 and the first encapsulation unit 410 are prepared, followed by the second light-emitting unit 312 and the second encapsulation unit 420. The second encapsulation unit 420 is prepared after the first encapsulation unit 410, and the preparation material of the second encapsulation unit 420 can completely cover the first encapsulation unit 410. When the prepared material is patterned to form the second encapsulation unit 420, a portion of the material located on the first encapsulation unit 410 is retained so that the second encapsulation unit 420 partially extends onto the first encapsulation unit 410. This portion of the second encapsulation unit 420 can provide protection for the first encapsulation unit 410, thereby improving the problem of the covered first encapsulation unit 410 being easily damaged.

[0214] In some optional embodiments, step S03 may further include:

[0215] Step S04 : forming a third light emitting unit 313 and a third encapsulation portion 430 at least partially disposed in the third isolation opening, wherein the third encapsulation portion 430 partially extends onto the first encapsulation portion 410 and / or partially extends onto the second encapsulation portion 420 .

[0216] In the embodiment of the present application, the third encapsulation part 430 is prepared after the first encapsulation part 410 and the second encapsulation part 420, and the preparation material of the third encapsulation part 430 can entirely cover the first encapsulation part 410 and the second encapsulation part 420. When the prepared material is patterned to form the third encapsulation part 430, a portion of the material located on the first encapsulation part 410 and / or the second encapsulation part 420 is retained, so that the third encapsulation part 430 partially extends onto the second encapsulation part 420, and / or the third encapsulation part 430 partially extends onto the second encapsulation part 420. This portion of the third encapsulation part 430 can provide protection to the first encapsulation part 410 and / or the second encapsulation part 420, thereby improving the problem that the covered first encapsulation part 410 and / or the second encapsulation part 420 are easily damaged.

[0217] While the embodiments described above are not exhaustive, they do not limit the invention to the specific embodiments described. Clearly, numerous modifications and variations are possible based on the above description. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better utilize the present invention and its modifications. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized in that: include: substrate; An isolation structure is located on one side of the substrate, and the isolation structure encloses an isolation opening; a light-emitting layer located on one side of the substrate, the light-emitting layer comprising a plurality of light-emitting units arranged at intervals, the light-emitting units being at least partially located in the isolation openings, The first encapsulation layer includes a plurality of encapsulation parts for encapsulating each of the light-emitting units. The orthographic projection of the packaging portion corresponding to at least one of the light-emitting units on the substrate at least partially overlaps with the orthographic projection of the packaging portion corresponding to at least one of the adjacent light-emitting units on the substrate.

2. The display panel according to claim 1, wherein: The orthographic projections of the adjacent plurality of packaging parts on the substrate enclose a hollow area, and the hollow area is located within the orthographic projection range of the isolation structure on the substrate.

3. The display panel according to claim 2, wherein: The orthographic projection of the packaging portion corresponding to one of the light-emitting units on the substrate overlaps with the orthographic projection of the packaging portion corresponding to some adjacent light-emitting units on the substrate.

4. The display panel according to claim 2, wherein: One light emitting unit is adjacent to N light emitting units in its circumferential direction, and the orthographic projection of the packaging part corresponding to the light emitting unit on the substrate overlaps with the orthographic projection of the packaging parts corresponding to the M light emitting units adjacent to it in the circumferential direction on the substrate, M<N.

5. The display panel according to claim 2, wherein: The isolation structure is further provided with a light-transmitting opening, and the orthographic projection of the light-transmitting opening at least partially overlaps with the hollow area.

6. The display panel according to claim 1, wherein: The orthographic projections of the packaging parts corresponding to the adjacent plurality of light-emitting units on the substrate completely cover the orthographic projections of the isolation structures between the adjacent plurality of light-emitting units on the substrate.

7. The display panel according to claim 6, wherein: The orthographic projections of the packaging parts corresponding to any two adjacent light-emitting units on the substrate at least partially overlap.

8. The display panel according to claim 1, wherein: The light emitting unit includes a first light emitting unit and a second light emitting unit, wherein the first light emitting unit and the second light emitting unit are adjacent to each other; The encapsulation portion is located on the side of the light-emitting unit facing away from the substrate, and the encapsulation portion also covers the side wall of the isolation structure facing the isolation opening and extends to the side of the isolation structure facing away from the substrate; the multiple encapsulation portions include a first encapsulation portion encapsulating the first light-emitting unit and a second encapsulation portion encapsulating the second light-emitting unit, and the second encapsulation portion at least partially extends to the side of the first encapsulation portion facing away from the substrate.

9. The display panel according to claim 8, wherein: The first encapsulation portion includes a first segment and a second segment connected to each other, the first segment is located on a side of the first light-emitting unit facing away from the substrate and covers a sidewall of the isolation structure facing the isolation opening, and the second segment is located on a side of the isolation structure facing away from the substrate; The second encapsulation portion includes a third segment and a fourth segment connected to each other, the third segment is located on a side of the second light-emitting unit facing away from the substrate and covers a sidewall of the isolation structure facing the isolation opening, and the fourth segment is located on a side of the isolation structure facing away from the substrate; Wherein, at least a portion of the fourth segment extends to a side of the second segment facing away from the substrate.

10. The display panel according to claim 9, wherein: The fourth segment includes a first subsegment and a second subsegment, the first subsegment is connected between the third segment and the second subsegment, and the second subsegment is arranged around a portion of the first subsegment. The second subsegment is located on a side of the second segment away from the substrate.

11. The display panel according to claim 10, wherein: The second sub-segment and the second segment are spaced apart from each other along the thickness direction of the display panel and form a first gap. And / or, the second segment and the isolation structure are spaced apart along the thickness direction of the display panel to form a second gap; And / or, the first sub-segment and the isolation structure are spaced apart from each other along the thickness direction of the display panel to form a third gap.

12. The display panel according to claim 11, wherein: The display panel further includes a second encapsulation layer located on a side of the first encapsulation layer away from the substrate; In which, the second sub-segment and the second segment are spaced apart along the thickness direction of the display panel and form a first gap, and the second encapsulation layer is at least partially filled into the first gap; and / or: the second segment and the isolation structure are spaced apart along the thickness direction of the display panel and form a second gap, and the second encapsulation layer is at least partially filled into the second gap; and / or: the first sub-segment and the isolation structure are spaced apart along the thickness direction of the display panel to form a third gap, and the second encapsulation layer is at least partially filled into the third gap.

13. The display panel according to claim 11, wherein: The light emitting unit includes a first electrode, a light emitting structure, and a second electrode stacked in a direction away from the substrate; The second segment and the isolation structure are spaced apart along the thickness direction of the display panel to form a second gap, and a dimension of the second gap along the thickness direction of the display panel is greater than or equal to the sum of the thicknesses of the second electrode and the light-emitting structure in the first light-emitting unit; and / or, the first subsegment and the isolation structure are spaced apart along the thickness direction of the display panel to form a third gap, and a dimension of the third gap along the thickness direction of the display panel is greater than or equal to the sum of the thicknesses of the second electrode and the light-emitting structure in the second light-emitting unit; And / or, the second sub-segment and the second segment are spaced apart along the thickness direction of the display panel and form a first gap, and the size of the first gap along the thickness direction of the display panel is greater than or equal to the sum of the thicknesses of the second electrode and the light-emitting structure in the second light-emitting unit.

14. The display panel according to claim 11, wherein: The second sub-segment and the second segment are spaced apart along the thickness direction of the display panel and form a first gap, the second segment and the isolation structure are spaced apart along the thickness direction of the display panel and form a second gap, the first sub-segment and the isolation structure are spaced apart along the thickness direction of the display panel to form a third gap, the size of the second gap along the thickness direction of the display panel is smaller than the size of the first gap along the thickness direction of the display panel; and / or: the size of the second gap along the thickness direction of the display panel is smaller than the size of the third gap along the thickness direction of the display panel; and / or: the size of the first gap along the thickness direction of the display panel is equal to the size of the third gap along the thickness direction of the display panel.

15. The display panel according to claim 14, wherein: The light-emitting layer further includes redundant units, and at least part of the redundant units is located in the third gap.

16. The display panel according to claim 9, wherein: Along the thickness direction of the display panel, redundant electrodes exist between at least a portion of the fourth segments and the isolation structure.

17. The display panel according to claim 16, wherein: The fourth segment includes a first sub-segment and a second sub-segment, the first sub-segment is connected between the third segment and the second sub-segment, the second sub-segment is located on a side of the second segment facing away from the substrate, the first sub-segment and the isolation structure are spaced apart along the thickness direction of the display panel to form a third gap; the redundant electrode is located in the third gap.

18. The display panel according to claim 9, wherein: At least part of the second segment and the fourth segment are spaced apart.

19. The display panel according to claim 18, wherein: The fourth segment includes a first sub-segment and a second sub-segment, and the second sub-segment is arranged around a portion of the first sub-segment, and the second sub-segment is located on the side of the second segment facing away from the substrate; the first sub-segment includes a first main body and a connecting portion, the first main body is connected to the third segment, and the connecting portion is connected between the first main body and the second sub-segment, and the first main body is arranged between the orthographic projection of the substrate and the orthographic projection of the second segment on the substrate.

20. The display panel according to claim 19, wherein The second segment includes a first surface and a second surface arranged opposite to each other in the thickness direction of the display panel, the first surface is arranged toward the substrate, and the second surface is arranged away from the substrate. The second segment also includes a first side surface connecting the first surface and the second surface, and a first gap is formed between the connecting portion and the first side surface.

21. The display panel according to claim 20, wherein: The second sub-segment and the second segment are spaced apart along the thickness direction of the display panel to form a first gap, and a dimension of the first gap along the normal direction of the first side surface is smaller than a dimension of the first gap along the thickness direction of the display panel.

22. The display panel according to claim 20, wherein: An angle between the first side surface and the first surface is less than 90 degrees.

23. The display panel according to claim 9, wherein: At least parts of the second segment and the fourth segment are connected to each other.

24. The display panel according to claim 23, wherein: The second segment includes a first surface and a second surface arranged opposite to each other in the thickness direction of the display panel, the first surface is arranged toward the substrate, and the second surface is arranged away from the substrate. The second segment also includes a first side surface connecting the first surface and the second surface, and the fourth segment and the first side surface are connected to each other.

25. The display panel according to claim 24, wherein: An angle between the first side surface and the first surface is greater than or equal to 90 degrees.

26. The display panel according to claim 8, wherein The light emitting unit further includes a third light emitting unit, and the third light emitting unit is disposed adjacent to at least one of the first light emitting unit or the second light emitting unit. The encapsulation portion includes a third encapsulation portion encapsulating the third light emitting unit, wherein: The third packaging portion at least partially extends to a side of the first packaging portion facing away from the substrate; And / or, the third encapsulation portion at least partially extends to a side of the second encapsulation portion facing away from the substrate.

27. The display panel according to claim 1, wherein The encapsulation portion is located on a side of the light-emitting unit facing away from the substrate, the encapsulation portion also covers a sidewall of the isolation structure facing the isolation opening and extends to a side of the isolation structure facing away from the substrate, and a gap is formed between at least one of the encapsulation portions and its adjacent encapsulation portion and the isolation structure; The display panel further includes a second encapsulation layer, and the second encapsulation layer fills at least a portion of the gap.

28. The display panel according to claim 1, wherein The isolation structure has a top surface facing away from the substrate, the encapsulation portion is located on a side of the light-emitting unit facing away from the substrate, the encapsulation portion also covers a sidewall of the isolation structure facing the isolation opening and extends to a side of the isolation structure facing away from the substrate, and is formed in a covering section on the side of the isolation structure facing away from the substrate; In a cross section perpendicular to the extension direction of the isolation structure, the top surface has a first width D1, and the covering segment located on the side of the top surface facing away from the substrate has a second width D2, and the first width D1 and the second width D2 satisfy:

29. The display panel according to claim 28, wherein: The light-emitting unit includes a first light-emitting unit and a second light-emitting unit that are adjacent to each other; the plurality of encapsulation portions include a first encapsulation portion that encapsulates the first light-emitting unit and a second encapsulation portion that encapsulates the second light-emitting unit; the covering section includes a second segment of the first encapsulation portion located on a side of the isolation structure facing away from the substrate, and a fourth segment of the second encapsulation portion located on a side of the isolation structure facing away from the substrate; along a cross section perpendicular to an extension direction of the isolation structure between the first light-emitting unit and the second light-emitting unit, the second width of the second segment is a first sub-width d1, and the second width of the fourth segment close to the first light-emitting unit is a second sub-width d2, wherein the first sub-width and the second sub-width satisfy: d1≤d2; Alternatively, the light-emitting unit includes an adjacent first light-emitting unit and a third light-emitting unit; the plurality of encapsulation portions include a first encapsulation portion encapsulating the first light-emitting unit and a third encapsulation portion encapsulating the third light-emitting unit; the covering segment includes a second segment of the first encapsulation portion located on a side of the isolation structure facing away from the substrate, and a sixth segment of the third encapsulation portion located on a side of the isolation structure facing away from the substrate; along a cross section perpendicular to an extension direction of the isolation structure between the first light-emitting unit and the third light-emitting unit, the second width of the second segment is a first sub-width d1, and the second width of the sixth segment close to the first light-emitting unit is a third sub-width d3, wherein the first sub-width d1 and the third sub-width d3 satisfy: d1≤d3; Alternatively, the light-emitting unit includes an adjacent second light-emitting unit and a third light-emitting unit; the plurality of encapsulation portions include a second encapsulation portion encapsulating the second light-emitting unit and a third encapsulation portion encapsulating the third light-emitting unit; the covering segment includes a fourth segment of the second encapsulation portion located on a side of the isolation structure facing away from the substrate, and a sixth segment of the third encapsulation portion located on a side of the isolation structure facing away from the substrate; along a cross section perpendicular to an extension direction of the isolation structure between the second light-emitting unit and the third light-emitting unit, the second width of the fourth segment close to the third light-emitting unit is a fourth sub-width d4, and the second width of the sixth segment close to the second light-emitting unit is a fifth sub-width d5, wherein the fourth sub-width d4 and the fifth sub-width d5 ​​satisfy: d4≤d5.

30. The display panel according to claim 1, wherein The orthographic projection of the packaging portion corresponding to the light-emitting unit on the substrate at least partially overlaps with the orthographic projection of the packaging portion corresponding to at least one adjacent light-emitting unit on the substrate, forming an overlapping area. The isolation structure has a top surface facing away from the substrate, and the area of ​​the overlapping area accounts for 15% to 75% of the orthographic projection area of ​​the top surface on the substrate.

31. A display panel, characterized in that: include: substrate; an isolation structure located on one side of the substrate, the isolation structure enclosing an isolation opening and having a top surface facing away from the substrate; a light-emitting layer located on one side of the substrate, the light-emitting layer including a light-emitting unit at least partially located in the isolation opening, The first encapsulation layer includes a plurality of encapsulation parts for encapsulating each of the light-emitting units. In which, the packaging part is located on the side of the light-emitting unit facing away from the substrate, and the packaging part also covers the side wall of the isolation structure facing the isolation opening and extends to the side of the isolation structure facing away from the substrate, and is formed in a covering section on the side of the isolation structure facing away from the substrate. The covering section of at least one of the packaging parts includes a first area and a second area. Along the thickness direction of the substrate, the distance from the first area to the top surface is different from the distance from the second area to the top surface.

32. The display panel according to claim 31, wherein: The covering segments of the packaging portion corresponding to at least a portion of the light-emitting units at least partially overlap in their orthographic projections on the substrate.

33. The display panel according to claim 32, wherein: The light-emitting unit includes an adjacent first light-emitting unit and a second light-emitting unit, the multiple encapsulation parts include a first encapsulation part that encapsulates the first light-emitting unit and a second encapsulation part that encapsulates the second light-emitting unit, the covering section includes a second segment of the first encapsulation part located on a side of the isolation structure away from the substrate and a fourth segment of the second encapsulation part located on a side of the isolation structure away from the substrate, and the orthographic projections of the second segment and the fourth segment on the substrate at least partially overlap.

34. The display panel according to claim 33, wherein: At least two regions in the second segment of the same first packaging portion have the same distance from the top surface.

35. The display panel according to claim 33, wherein: The second packaging portion also includes a third segment and a fourth segment, the third segment is located on the side of the second light-emitting unit away from the substrate and covers the side wall of the isolation structure facing the isolation opening, the fourth segment includes a first sub-segment and a second sub-segment, the first sub-segment is connected between the third segment and the second sub-segment, the second sub-segment is located on the side of the second segment away from the substrate, and the distance between the first sub-segment and the top surface along the thickness direction of the display panel is different from the distance between the second sub-segment and the top surface along the thickness direction of the display panel.

36. The display panel according to claim 35, wherein: A distance between the first sub-segment and the top surface along a thickness direction of the display panel is smaller than a distance between the second sub-segment and the top surface along the thickness direction of the display panel.

37. The display panel according to claim 33, wherein: The light-emitting unit also includes a third light-emitting unit arranged adjacent to at least one of the first light-emitting unit and the second light-emitting unit, the multiple encapsulation parts include a third encapsulation part that encapsulates the third light-emitting unit, and the covering section includes a sixth segment of the third encapsulation part located on a side of the isolation structure away from the substrate, and the sixth segment is arranged to overlap with the orthographic projection of the substrate and at least one of the orthographic projection of the second segment or the fourth segment on the substrate.

38. The display panel according to claim 37, wherein: The sixth segment further at least partially extends to a side of the second segment or the fourth segment facing away from the substrate.

39. The display panel according to claim 38, wherein: The third encapsulation portion further includes a fifth segment, the fifth segment being located on a side of the third light-emitting unit facing away from the substrate and covering a sidewall of the isolation structure facing the isolation opening. The sixth segment includes a third sub-segment and a fourth sub-segment, the third sub-segment being connected between the fifth segment and the fourth sub-segment, the fourth sub-segment being located on a side of the second segment facing away from the substrate, and a distance between the third sub-segment and the top surface along the thickness direction of the display panel being different from a distance between the fourth sub-segment and the top surface along the thickness direction of the display panel. Alternatively, the third encapsulation portion further includes a fifth segment, the fifth segment being located on a side of the third light-emitting unit facing away from the substrate and covering a sidewall of the isolation structure facing the isolation opening; the sixth segment including a third sub-segment and a fifth sub-segment, the third sub-segment being connected between the fifth segment and the fifth sub-segment, the fifth sub-segment being located on a side of the fourth segment facing away from the substrate, and a distance between the third sub-segment and the top surface along the thickness direction of the display panel being different from a distance between the fifth sub-segment and the top surface along the thickness direction of the display panel; Alternatively, the third packaging part also includes a fifth segment, which is located on the side of the third light-emitting unit away from the substrate and covers the side wall of the isolation structure facing the isolation opening, and the sixth segment includes a third sub-segment connected to the fifth segment and a fourth sub-segment and a fifth sub-segment connected to the third sub-segment respectively, and the fourth sub-segment and the fifth sub-segment are arranged in sequence along the circumference of the third sub-segment; the fourth sub-segment is located on the side of the second segment away from the substrate, and the fifth sub-segment is located on the side of the fourth segment away from the substrate, and at least two of the distance between the third sub-segment and the top surface along the thickness direction of the display panel, the distance between the fourth sub-segment and the top surface along the thickness direction of the display panel, and the distance between the fifth sub-segment and the top surface along the thickness direction of the display panel are different.

40. A display device, characterized in that: A display panel comprising any one of claims 1-39.

41. A method for preparing a display panel, characterized in that: include: forming an isolation structure on the substrate, wherein the isolation structure encloses a plurality of isolation openings, the isolation openings including a first isolation opening and a second isolation opening; forming a first light emitting unit and a first encapsulation portion at least partially disposed in the first isolation opening; A second light emitting unit and a second encapsulation portion are formed and are at least partially disposed in the second isolation opening, and the second encapsulation portion partially extends onto the first encapsulation portion.

42. The preparation method according to claim 41, characterized in that The isolation opening further includes a third isolation opening, and the preparation method further includes: A third light emitting unit and a third encapsulation portion are formed, at least partially disposed in the third isolation opening. The third encapsulation portion partially extends onto the first encapsulation portion, and / or the third encapsulation portion partially extends onto the second encapsulation portion.

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