Display panel, display device and preparation method of display panel

Abstract

The invention discloses a display panel, a display device and a preparation method of the display panel. The display panel comprises a substrate, an isolation structure and a light emitting layer. The second display area is used for arranging the photosensitive assembly, the light transmittance of the second display area is larger than that of the first display area, and the photosensitive effect of the second display area is improved. The first layer and the second layer are arranged to form an isolation structure. The extension distance corresponding to the light-emitting units in at least part of the second display area is smaller than or equal to the extension distance corresponding to the light-emitting units with the same color in the first display area, so that the lap joint area of the first electrode and the isolation structure in the second display area is larger, and the lap joint impedance of the first electrode and the isolation structure in the second display area is reduced. The overlap impedance difference between the first electrodes of the first display area and the second display area and the isolation structure is reduced, the undesirable phenomenon that dark fringes appear in the second display area due to the large overlap impedance difference between the first electrodes of the first display area and the second display area and the isolation structure is improved, and the use performance of the display panel is improved.

Description

Technical Field

[0001] 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

[0002] 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, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices.

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

[0004] 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 the display panel.

[0005] A first aspect of the present application provides a display panel, the display panel comprising a first display area and a second display area, the transmittance of the first display area is less than the transmittance of the second display area, the display panel comprising: a substrate; an isolation structure located on the substrate, the isolation structure encloses a plurality of isolation openings, the isolation structure comprising a first layer and a second layer located on a side of the first layer away from the substrate, the orthographic projection of the first layer on the substrate is located within the orthographic projection of the second layer on the substrate; a light-emitting layer located on the substrate, the light-emitting layer comprising light-emitting units located in the isolation openings, wherein a distance between an edge of the orthographic projection of the first layer on the substrate close to the light-emitting unit and an edge of the orthographic projection of the second layer on the substrate close to the same light-emitting unit is an extension distance, and the extension distance corresponding to the light-emitting units in at least part of the second display area is less than or equal to the extension distance corresponding to the light-emitting units of the same color in the first display area.

[0006] According to an implementation of the first aspect of the present application, the extension distances corresponding to the multiple light-emitting units with the same color in the first display area are the same, and / or the extension distances corresponding to the multiple light-emitting units with the same color in the second display area are the same.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, among the isolation openings corresponding to at least some of the light-emitting units of the same color, the orthographic projection area of ​​the isolation openings located in the first display area on the substrate is greater than or equal to the orthographic projection area of ​​the isolation openings located in the second display area on the substrate.

[0008] According to any of the aforementioned implementations of the first aspect of the present application, the display panel further includes: a first electrode layer, located on a side of the light-emitting layer facing away from the substrate.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the first electrode layer includes a plurality of first electrodes arranged at intervals, and the first electrodes are electrically connected to the isolation structure.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of each light-emitting unit on the substrate is located within the orthographic projection of each first electrode on the substrate.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the light-emitting unit and the isolation structure are spaced apart.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, an orthographic projection area of ​​the first electrode in the first display area on the substrate is greater than or equal to an orthographic projection area of ​​the first electrode in the second display area on the substrate.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, among the first electrodes corresponding to the light-emitting units of the same color, the climbing height of the first electrode located in the first display area on the isolation structure is less than or equal to the climbing height of the first electrode located in the second display area on the isolation structure.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, the first layer has a first bottom surface close to one side of the substrate, the second layer has a second bottom surface close to one side of the substrate, and the distance between the edge of the orthographic projection of the first bottom surface on the substrate close to the light-emitting unit and the edge of the orthographic projection of the second bottom surface on the substrate close to the same light-emitting unit is the extended distance.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel also includes: a second electrode layer located between the substrate and the isolation structure, the second electrode layer includes a plurality of second electrodes, and at least two second electrodes in the second display area are electrically connected to each other via connecting lines.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, at least two second electrodes in the second display area form a second electrode group, and the plurality of second electrode groups are spaced and insulated from each other.

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, an orthographic projection area of ​​the second electrode in the first display area on the substrate is greater than or equal to an orthographic projection area of ​​the second electrode in the second display area on the substrate.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the second electrode in the first display area on the substrate is a polygon.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the second electrode in the second display area on the substrate is circular or elliptical.

[0020] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure includes a first isolation structure located in the first display area and a plurality of second isolation structures located in the second display area, and the plurality of second isolation structures are arranged at intervals from each other.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, each second isolation structure encloses and forms an isolation opening located in the second display area.

[0022] According to any of the aforementioned embodiments of the first aspect of the present application, the second isolation structure is electrically connected to the signal line on a side close to the substrate.

[0023] According to any of the aforementioned implementations of the first aspect of the present application, a light-transmitting gap is formed between adjacent second isolation structures.

[0024] According to any of the aforementioned embodiments of the first aspect of the present application, the first isolation structure encloses a first isolation opening, and the second isolation structure encloses a second isolation opening, and the orthographic projection area of ​​the first isolation opening on the substrate is greater than or equal to the orthographic projection area of ​​the second isolation opening on the substrate.

[0025] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel further includes a signal line located between the substrate and the second isolation structure, and the second isolation structure is electrically connected to the signal line.

[0026] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the first isolation opening on the substrate is a polygonal structure.

[0027] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the second isolation opening on the substrate is circular or elliptical.

[0028] According to any of the aforementioned embodiments of the first aspect of the present application, the first isolation structure and the second isolation structure are arranged at intervals.

[0029] According to any of the aforementioned embodiments of the first aspect of the present application, the first isolation structure is a mesh structure.

[0030] According to any of the aforementioned embodiments of the first aspect of the present application, the width of the first isolation structure is greater than or equal to the width of the second isolation structure.

[0031] According to any of the aforementioned embodiments of the first aspect of the present application, the ratio of the area of ​​the first isolation structure's orthographic projection on the substrate to the area of ​​the first display area is a first ratio, the ratio of the area of ​​the second isolation structure's orthographic projection on the substrate to the area of ​​the second display area is a second ratio, and the first ratio is greater than or equal to the second ratio.

[0032] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel further includes: a pixel definition layer located on the substrate, the pixel definition layer including a pixel defining portion and a pixel opening formed by the pixel defining portion, and the pixel opening and the isolation opening are connected.

[0033] According to any of the aforementioned implementations of the first aspect of the present application, the isolation structure is located on a side of the pixel defining portion facing away from the substrate.

[0034] According to any of the aforementioned embodiments of the first aspect of the present application, an orthographic projection area of ​​the pixel opening in the first display area on the substrate is greater than or equal to an orthographic projection area of ​​the pixel opening in the second display area on the substrate.

[0035] A second aspect of the present application provides a display panel, comprising a first display area and a second display area adjacent to the first display area, the display panel further comprising: a substrate; an isolation structure located on the substrate, the isolation structure enclosing a plurality of isolation openings, the isolation structure comprising a first layer and a second layer located on a side of the first layer away from the substrate, the second layer comprising a protrusion protruding relative to the first layer; a light-emitting layer located on the substrate, the light-emitting layer comprising light-emitting units located in the isolation openings, wherein the width of the protrusions corresponding to the light-emitting units in at least part of the second display area is less than or equal to the width of the protrusions corresponding to the light-emitting units of the same color in the first display area.

[0036] According to an implementation of the second aspect of the present application, the widths of the protrusions corresponding to the multiple light-emitting units of the same color in the first display area are the same, and / or the widths of the protrusions corresponding to the multiple light-emitting units of the same color in the second display area are the same.

[0037] According to any of the aforementioned embodiments of the second aspect of the present application, the light-emitting unit includes a first light-emitting unit, and in the first display area, the width of the protrusion corresponding to the first light-emitting unit is a first width, and in the second display area, the width of the protrusion corresponding to the first light-emitting unit is a second width, and the first width is greater than the second width.

[0038] According to any of the foregoing embodiments of the second aspect of the present application, the light-emitting unit also includes a second light-emitting unit spaced apart from the first light-emitting unit, and in the first display area, the width of the protrusion corresponding to the second light-emitting unit is a third width, and in the second display area, the width of the protrusion corresponding to the second light-emitting unit is a fourth width, and the third width is greater than the fourth width.

[0039] According to any of the foregoing embodiments of the second aspect of the present application, the light-emitting unit also includes a third light-emitting unit spaced apart from the first light-emitting unit and the second light-emitting unit, and in the first display area, the width of the protrusion corresponding to the third light-emitting unit is the fifth width, and in the second display area, the width of the protrusion corresponding to the third light-emitting unit is the sixth width, and the fifth width is greater than the sixth width.

[0040] According to any of the aforementioned embodiments of the second aspect of the present application, the first light-emitting unit is a light-emitting unit that emits red light, the second light-emitting unit is a light-emitting unit that emits green light, and the third light-emitting unit is a light-emitting unit that emits blue light.

[0041] According to a third aspect of the present application, there is provided a display panel, comprising a first display area and a second display area, wherein the transmittance of the first display area is less than that of the second display area, and the display panel comprises: a substrate; an isolation structure located on the substrate, the isolation structure enclosing a plurality of isolation openings; a light-emitting layer located on the substrate, the light-emitting layer comprising light-emitting units located in the isolation openings; a first electrode layer located on a side of the light-emitting layer away from the substrate, the first electrode layer comprising a plurality of first electrodes arranged at intervals, the first electrodes being electrically connected to the isolation structure; among the first electrodes corresponding to the light-emitting units of the same color, a climbing height of the first electrode located in the first display area on the isolation structure is less than or equal to a climbing height of the first electrode located in the second display area on the isolation structure.

[0042] An embodiment of a fourth aspect of the present application provides a display device, which includes a display panel of any of the above-mentioned embodiments.

[0043] An embodiment of a fifth aspect of the present application provides a method for manufacturing a display panel, wherein the display panel includes a first display area and a second display area adjacent to the first display area, and the method includes:

[0044] An isolation structure is prepared on a substrate, the isolation structure encloses a plurality of isolation openings, the isolation structure comprises a first layer and a second layer located on a side of the first layer facing away from the substrate, an orthographic projection of the first layer on the substrate is located within an orthographic projection of the second layer on the substrate, and a distance between an edge of an orthographic projection of the first layer on the substrate facing the isolation opening and an edge of an orthographic projection of the second layer on the substrate facing the same isolation opening is an extension distance;

[0045] A light-emitting layer is prepared on the substrate, the light-emitting layer comprising light-emitting units located in the isolation openings, wherein the extension distance corresponding to the light-emitting units in at least part of the second display area is less than or equal to the extension distance corresponding to the light-emitting units of the same color in the first display area.

[0046] According to an embodiment of the fourth aspect of the present application, in the step of preparing an isolation structure on a substrate, the method includes:

[0047] preparing an isolation material layer on a substrate;

[0048] The isolation material layers located in the first display area and the second display area are patterned simultaneously using a first mask to form a first isolation opening located in the first display area, a second isolation opening located in the second display area, and a light-transmitting gap.

[0049] According to any of the aforementioned embodiments of the fourth aspect of the present application, the step of simultaneously patterning the isolation material layer located in the first display area and the second display area using the first mask includes:

[0050] Using a first mask to dry-etch the isolation material layer located in the first display area and the second display area;

[0051] The isolation material layer located in the first display area and the second display area is wet-etched using a wet-etching solution.

[0052] According to any of the aforementioned embodiments of the fourth aspect of the present application, in the step of preparing the isolation structure on the substrate, the method includes:

[0053] preparing an isolation material layer on a substrate;

[0054] Using a second mask to perform patterning processing on the isolation material layer located in the first display area for a first period of time;

[0055] The isolation material layer located in the second display area is patterned for a second period of time using a third mask, and the first period of time is greater than or equal to the second period of time.

[0056] According to the display panel of the embodiment of the present application, the display panel includes a substrate, an isolation structure and a light-emitting layer. The second display area is used to set a photosensitive component, and the transmittance of the second display area is greater than the transmittance of the first display area, thereby improving the photosensitivity of the second display area. The first layer and the second layer are arranged to form an isolation structure, the orthographic projection of the first layer arranged close to the substrate on the substrate is located within the orthographic projection of the second layer on the substrate, the area of ​​the second layer is greater than the area of ​​the first layer, and the second layer covers the surface of the first layer close to the second layer, and at this time, the first layer is concave relative to the second layer in the direction away from the isolation opening. When preparing the light-emitting layer, the light-emitting layer has a large drop at the edge of the isolation structure, and the first layer is concave relative to the second layer. The light-emitting layer is difficult to connect at the edge of the isolation structure, so it breaks, and the light-emitting layer breaks to form mutually disconnected light-emitting units, thereby reducing the crosstalk of carriers in the light-emitting layer, improving the display effect of the display panel, and the light-emitting unit can be prepared without using a precision mask plate, which can reduce the development and use of precision masks and reduce the preparation cost. At least part of the extension distance corresponding to the light-emitting unit in the second display area is less than or equal to the extension distance corresponding to the light-emitting unit of the same color in the first display area. When preparing the first electrode, the peripheral side of the first electrode overlaps with the side wall of the first layer of the isolation structure. Since the extension distance of the isolation structure corresponding to the light-emitting unit in the second display area is smaller, the overlapping area of ​​the first electrode and the isolation structure in the second display area is larger, thereby reducing the overlapping impedance of the first electrode and the isolation structure in the second display area. The difference in overlapping impedance between the first electrode and the isolation structure in the first display area and the second display area is reduced, improving the undesirable phenomenon of dark lines in the second display area caused by the large difference in overlapping impedance between the first electrode and the isolation structure in the first display area and the second display area, and improving the performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] 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.

[0058] Figure 1 is a schematic top view of a display panel provided in an embodiment of the present application;

[0059] Figure 2 is a partial cross-sectional view of the first display area provided in an embodiment of the present application;

[0060] Figure 3 is a partial cross-sectional view of the second display area provided in an embodiment of the present application;

[0061] Figure 4 is a partial top view of a display panel provided in an embodiment of the present application;

[0062] Figure 5is a partial cross-sectional view of a first display area provided by another embodiment;

[0063] Figure 6 is a partial cross-sectional view of a second display area provided by another embodiment;

[0064] Figure 7 is a partial cross-sectional view of a first display area provided by another embodiment;

[0065] Figure 8 is a partial cross-sectional view of a second display area provided by yet another embodiment;

[0066] Fig. 9 is a partial cross-sectional view of a first display area provided by yet another embodiment;

[0067] Fig.10 is a partial cross-sectional view of a second display area provided by yet another embodiment;

[0068] Fig.11 is a partial cross-sectional view of a first display area provided by another embodiment;

[0069] Fig.12 is a partial cross-sectional view of a second display area provided by another embodiment;

[0070] Fig.13 is a partial cross-sectional view of a first display area provided by another embodiment;

[0071] Fig.14 is a partial cross-sectional view of a second display area provided by another embodiment;

[0072] Fig.15 is a partial cross-sectional view of a first display area provided by another embodiment;

[0073] Fig.16 is a partial cross-sectional view of a second display area provided by another embodiment;

[0074] Fig.17 is a partial cross-sectional view of a first display area provided by another embodiment;

[0075] Fig.18 is a partial cross-sectional view of a second display area provided by another embodiment;

[0076] Fig.19 is a partial cross-sectional view of a first display area provided by another embodiment;

[0077] Fig. 20 is a partial cross-sectional view of a first display area provided by another embodiment;

[0078] Fig.21 is a partial cross-sectional view of a second display area provided by another embodiment;

[0079] Fig. 22 It is a schematic flow chart of a method for preparing a display panel provided in an embodiment of the present application.

[0080] Description of reference numerals:

[0081] 10. Display panel; AA1, first display area; AA2, second display area;

[0082] 100. Substrate;

[0083] 200, isolation structure; 201, first isolation structure; 202, second isolation structure; 210, first layer; 211, first bottom surface; 220, second layer; 221, second bottom surface; 230, third layer; 240, isolation opening; 250, light-transmitting gap; 260, protrusion;

[0084] 300, light-emitting layer; 310, light-emitting unit; 311, first light-emitting unit; 312, second light-emitting unit; 313, third light-emitting unit;

[0085] 400, first electrode layer; 410, first electrode; 411, first sub-electrode; 412, second sub-electrode; 413, third sub-electrode;

[0086] 500, pixel definition layer; 510, pixel definition portion; 520, pixel opening;

[0087] 600, second electrode layer; 610, second electrode; 620, connecting line;

[0088] D0, extended distance; D1, first distance; D2, second distance; D3, third distance; D4, fourth distance; D5, fifth distance; D6, sixth distance;

[0089] H0, climbing height; H1, first height; H2, second height; H3, third height; H4, fourth height; H5, fifth height; H6, sixth height;

[0090] L, width of the protrusion. DETAILED DESCRIPTION

[0091] 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 only to provide a better understanding of the present application by illustrating the examples of the present application.

[0092] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0093] 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 another region, it may mean that it is directly on the other layer or another region, or that other layers or regions are included between it and the other layer or another region. Moreover, if the component is turned over, the layer or a region will be "below" or "beneath" another layer or another region.

[0094] Embodiments of the present application provide a display panel, a display device, and a method for manufacturing a display panel. Embodiments of the display panel, the display device, and the method for manufacturing a display panel are described below in conjunction with the accompanying drawings.

[0095] An embodiment of the present application provides a display panel, which may be an organic light emitting diode (OLED) display panel.

[0096] See also Figures 1 to 4 , Figure 1 is a schematic top view of a display panel provided in an embodiment of the present application; Figure 2 is a partial cross-sectional view of the first display area provided in an embodiment of the present application; Figure 3 is a partial cross-sectional view of the second display area provided in an embodiment of the present application; Figure 4 It is a partial top view of a display panel provided in an embodiment of the present application.

[0097] like Figures 1 to 4As shown, the first aspect of the present application provides a display panel 10, the display panel 10 includes a first display area AA1 and a second display area AA2, the transmittance of the first display area AA1 is less than the transmittance of the second display area AA2, the display panel 10 includes: a substrate 100; an isolation structure 200, located on the substrate 100, the isolation structure 200 encloses a plurality of isolation openings 240, the isolation structure 200 includes a first layer 210 and a second layer 220 located on a side of the first layer 210 away from the substrate 100, the orthographic projection of the first layer 210 on the substrate 100 is located on the second layer 220 Within the orthographic projection of the substrate 100; the light-emitting layer 300 is located on the substrate 100, and the light-emitting layer 300 includes a light-emitting unit 310 located in the isolation opening 240, wherein the distance between the edge of the orthographic projection of the first layer 210 on the substrate 100 close to the light-emitting unit 310 and the edge of the orthographic projection of the second layer 220 on the substrate 100 close to the same light-emitting unit 310 is the extension distance D0, and the extension distance D0 corresponding to the light-emitting unit 310 in at least part of the second display area AA2 is less than or equal to the extension distance D0 corresponding to the light-emitting unit 310 of the same color in the first display area AA1.

[0098] The extension distance D0 corresponding to the light emitting unit 310 refers to the extension distance D0 of the isolation structure 200 around the isolation opening 240 where the light emitting unit 310 is located, that is, the extension distance D0 of the first layer 210 and the second layer 220 close to the light emitting unit 310 .

[0099] 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 and a light-emitting layer 300. The second display area AA2 is used to set a photosensitive component. The transmittance of the second display area AA2 is greater than the transmittance of the first display area AA1, thereby improving the photosensitivity of the second display area AA2. The first layer 210 and the second layer 220 are arranged to form an isolation structure 200. The orthographic projection of the first layer 210 arranged close to the substrate 100 on 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 greater than the area of ​​the first layer 210. The second layer 220 covers the surface of the first layer 210 close to the second layer 220. At this time, 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, the light-emitting layer 300 has a large drop at the edge of the isolation structure 200, and the first layer 210 is set concave relative to the second layer 220. The light-emitting layer 300 is difficult to connect at the edge of the isolation structure 200, so it breaks. The light-emitting layer 300 breaks 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 preparing the light-emitting unit 310 can be prepared without using a precision mask plate, which can reduce the development and use of precision masks and reduce the preparation cost. The extension distance D0 corresponding to the light-emitting unit 310 in at least part of the second display area AA2 is less than or equal to the extension distance D0 corresponding to the light-emitting unit 310 of the same color in the first display area AA1. When preparing the first electrode 410, the periphery of the first electrode 410 overlaps with the side wall of the first layer 210 of the isolation structure 200. Since the extension distance D0 of the isolation structure 200 corresponding to the light-emitting unit 310 in the second display area AA2 is smaller, the overlap area of ​​the first electrode 410 and the isolation structure 200 in the second display area AA2 is larger, thereby reducing the overlap impedance of the first electrode 410 and the isolation structure 200 in the second display area AA2. The difference in overlap impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2 is reduced, improving the undesirable phenomenon of dark lines in the second display area AA2 caused by the large difference in overlap impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2, thereby improving the performance of the display panel 10.

[0100] There are many ways to set the substrate 100. For example, the substrate 100 may include a substrate and an array substrate arranged on the substrate. Alternatively, the substrate 100 is the substrate. Alternatively, the substrate 100 includes a buffer layer and a support plate on a side away from the substrate.

[0101] In some optional embodiments, the extension distances D0 corresponding to the plurality of light emitting units 310 of the same color in the first display area AA1 are the same, and / or the extension distances D0 corresponding to the plurality of light emitting units 310 of the same color in the second display area AA2 are the same.

[0102] In these optional embodiments, in the first display area AA1, the extension distances D0 corresponding to the multiple light-emitting units 310 of the same color are the same; in the second display area AA2, the extension distances D0 corresponding to the multiple light-emitting units 310 of the same color are the same, and the extension distances D0 corresponding to the light-emitting units 310 in the second display area AA2 are less than or equal to the extension distances D0 corresponding to the light-emitting units 310 of the same color in the first display area AA1, that is, among the light-emitting units 310 of the same color, the extension distances D0 corresponding to the light-emitting units 310 in the first display area AA1 are all less than or equal to the extension distances D0 corresponding to the light-emitting units 310 in the second display area AA2, thereby reducing the difference in overlap impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2.

[0103] In some optional embodiments, among the isolation openings 240 corresponding to at least some of the light-emitting units 310 of the same color, the orthographic projection area of ​​the isolation openings 240 located in the first display area AA1 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the isolation openings 240 located in the second display area AA2 on the substrate 100.

[0104] The isolation opening 240 corresponding to the light emitting unit 310 refers to the isolation opening 240 where the light emitting unit 310 is located.

[0105] In these optional embodiments, the orthographic projection area of ​​the isolation opening 240 located in the second display area AA2 on the substrate 100 is smaller, and the area of ​​the isolation opening 240 in the second display area AA2 is reduced, so as to increase the light-transmitting area of ​​the second display area AA2 and improve the transmittance of the second display area AA2. For example, the area of ​​the light-transmitting gap 250 between the isolation structures 200 in the second display area AA2 is increased.

[0106] See also Figure 5 and Figure 6 , Figure 5 is a partial cross-sectional view of a first display area provided by another embodiment; Figure 6 is a partial cross-sectional view of a second display area provided by another embodiment.

[0107] like Figure 5 and Figure 6 As shown, in some optional embodiments, the light-emitting unit 310 includes a first light-emitting unit 311. In the first display area AA1, the extension distance D0 corresponding to the first light-emitting unit 311 is the first distance D1. In the second display area AA2, the extension distance D0 corresponding to the first light-emitting unit 311 is the second distance D2. The first distance D1 is greater than or equal to the second distance D2.

[0108] In these optional embodiments, the first distance D1 is greater than or equal to the second distance D2, that is, the extension distance D0 corresponding to the first light emitting unit 311 in the second display area AA2 is less than or equal to the extension distance D0 corresponding to the first light emitting unit 311 in the first display area AA1, so that the overlap area between the first electrode 410 corresponding to the first light emitting unit 311 in the second display area AA2 and the isolation structure 200 is larger, and the overlap impedance between the first electrode 410 corresponding to the first light emitting unit 311 in the second display area AA2 and the isolation structure 200 is reduced. The difference in overlap impedance between the first electrode 410 corresponding to the first light emitting unit 311 in the first display area AA1 and the second display area AA2 and the isolation structure 200 is reduced, improving the undesirable phenomenon of dark lines appearing in the second display area AA2 due to the large difference in overlap impedance between the first electrode 410 corresponding to the first light emitting unit 311 in the first display area AA1 and the second display area AA2 and the isolation structure 200, thereby improving the performance of the display panel 10.

[0109] The first electrode 410 corresponding to the first light emitting unit 311 refers to the first electrode 410 covering the first light emitting unit 311 , that is, the first electrode 410 and the first light emitting unit 311 are located in the same isolation opening 240 .

[0110] See also Figure 7 and Figure 8 , Figure 7 is a partial cross-sectional view of a first display area provided by another embodiment; Figure 8 is a partial cross-sectional view of a second display area provided by yet another embodiment.

[0111] like Figure 7 and Figure 8 As shown, in some optional embodiments, the light-emitting unit 310 also includes a second light-emitting unit 312 spaced apart from the first light-emitting unit 311, and in the first display area AA1, the extension distance D0 corresponding to the second light-emitting unit 312 is a third distance D3, and in the second display area AA2, the extension distance D0 corresponding to the second light-emitting unit 312 is a fourth distance D4, and the third distance D3 is greater than or equal to the fourth distance D4.

[0112] In these optional embodiments, the third distance D3 is greater than or equal to the fourth distance D4, that is, the extension distance D0 corresponding to the second light emitting unit 312 in the second display area AA2 is less than or equal to the extension distance D0 corresponding to the second light emitting unit 312 in the first display area AA1, so that the overlap area between the first electrode 410 corresponding to the second light emitting unit 312 in the second display area AA2 and the isolation structure 200 is larger, and the overlap impedance between the first electrode 410 corresponding to the second light emitting unit 312 in the second display area AA2 and the isolation structure 200 is reduced. The difference in overlap impedance between the first electrode 410 corresponding to the second light emitting unit 312 in the first display area AA1 and the second display area AA2 and the isolation structure 200 is reduced, improving the undesirable phenomenon of dark lines appearing in the second display area AA2 due to the large difference in overlap impedance between the first electrode 410 corresponding to the second light emitting unit 312 in the first display area AA1 and the second display area AA2 and the isolation structure 200, thereby improving the performance of the display panel 10.

[0113] The first electrode 410 corresponding to the second light emitting unit 312 refers to the first electrode 410 covering the second light emitting unit 312 , that is, the first electrode 410 and the second light emitting unit 312 are located in the same isolation opening 240 .

[0114] See also Fig. 9 and Fig.10 , Fig. 9 is a partial cross-sectional view of a first display area provided by yet another embodiment; Fig.10 is a partial cross-sectional view of a second display area provided in yet another embodiment.

[0115] like Fig. 9 and Fig.10 As shown, in some optional embodiments, the light-emitting unit 310 also includes a third light-emitting unit 313 spaced apart from the first light-emitting unit 311 and the second light-emitting unit 312. In the first display area AA1, the extension distance D0 corresponding to the third light-emitting unit 313 is the fifth distance D5. In the second display area AA2, the extension distance D0 corresponding to the third light-emitting unit 313 is the sixth distance D6. The fifth distance D5 is greater than or equal to the sixth distance D6.

[0116] In these optional embodiments, the fifth distance D5 is greater than or equal to the sixth distance D6, that is, the extension distance D0 corresponding to the third light emitting unit 313 in the second display area AA2 is less than or equal to the extension distance D0 corresponding to the third light emitting unit 313 in the first display area AA1, so that the overlap area between the first electrode 410 corresponding to the third light emitting unit 313 in the second display area AA2 and the isolation structure 200 is larger, and the overlap impedance between the first electrode 410 corresponding to the third light emitting unit 313 in the second display area AA2 and the isolation structure 200 is reduced. The difference in overlap impedance between the first electrode 410 corresponding to the third light emitting unit 313 in the first display area AA1 and the second display area AA2 and the isolation structure 200 is reduced, improving the undesirable phenomenon of dark lines appearing in the second display area AA2 due to the large difference in overlap impedance between the first electrode 410 corresponding to the third light emitting unit 313 in the first display area AA1 and the second display area AA2 and the isolation structure 200, thereby improving the performance of the display panel 10.

[0117] Optionally, the first light emitting unit 311 is a light emitting unit 310 that emits red light, the second light emitting unit 312 is a light emitting unit 310 that emits green light, and the third light emitting unit 313 is a light emitting unit 310 that emits blue light.

[0118] In some optional embodiments, the display panel 10 further includes: a first electrode layer 400 located on a side of the light emitting layer 300 facing away from the substrate 100 .

[0119] Optionally, the first electrode layer 400 includes a plurality of first electrodes 410 arranged at intervals, and the first electrodes 410 are electrically connected to the isolation structure 200 .

[0120] In these optional embodiments, the isolation structure 200 separates the first electrode layer 400 to form mutually spaced first electrodes 410 , and the mutually spaced first electrodes 410 are electrically connected through the isolation structure 200 to form a full-surface electrode, thereby ensuring normal light emission of the light-emitting unit 310 .

[0121] In some optional embodiments, the orthographic projection of each light emitting unit 310 on the substrate 100 is located within the orthographic projection of each first electrode 410 on the substrate 100 .

[0122] In these optional embodiments, the orthographic projection of the light-emitting unit 310 on the substrate 100 is located within the orthographic projection of the first electrode 410 on the substrate 100, that is, the first electrode 410 is arranged to cover the light-emitting unit 310 to serve as an electrode of the light-emitting unit 310, thereby ensuring normal light emission of the light-emitting unit 310 and improving the display effect of the display panel 10.

[0123] Optionally, the light-emitting unit 310 and the isolation structure 200 are spaced apart, that is, the light-emitting units 310 are spaced apart from each other, thereby reducing the crosstalk of carriers between the light-emitting units 310 and improving the cross-color problem of the light-emitting units 310.

[0124] Optionally, the orthographic projection area of ​​the first electrode 410 in the first display area AA1 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the first electrode 410 in the second display area AA2 on the substrate 100. The area of ​​the first electrode 410 in the first display area AA1 is larger, and the overlapping area with the isolation structure 200 is larger. Therefore, the extension distance D0 of the isolation structure 200 corresponding to the light-emitting unit 310 in the second display area AA2 where the first electrode 410 is smaller is set to be smaller, so that the overlapping area between the first electrode 410 and the isolation structure 200 in the second display area AA2 is increased, thereby reducing the overlapping impedance between the first electrode 410 and the isolation structure 200 in the second display area AA2. The difference in overlapping impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2 is reduced, improving the undesirable phenomenon that dark lines appear in the second display area AA2 due to the large difference in overlapping impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2, thereby improving the performance of the display panel 10.

[0125] See also Fig.11 and Fig.12 , Fig.11 is a partial cross-sectional view of a first display area provided by another embodiment; Fig.12 is a partial cross-sectional view of a second display area provided in yet another embodiment.

[0126] like Fig.11 and Fig.12 As shown, in some optional embodiments, in the first electrodes 410 corresponding to the light-emitting units 310 of the same color, the climbing height H0 of the first electrode 410 located in the first display area AA1 on the isolation structure 200 is less than or equal to the climbing height H0 of the first electrode 410 located in the second display area AA2 on the isolation structure 200.

[0127] In these optional embodiments, the climbing height H0 of the first electrode 410 of the isolation opening 240 located in the second display area AA2 on the isolation structure 200 is larger, so that the overlapping area of ​​the first electrode 410 and the isolation structure 200 in the second display area AA2 is larger, and the overlapping impedance of the first electrode 410 and the isolation structure 200 in the second display area AA2 is reduced. The difference in overlapping impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2 is reduced, which improves the undesirable phenomenon of dark lines appearing in the second display area AA2 due to the large difference in overlapping impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2, and improves the performance of the display panel 10.

[0128] See also Fig.13 and Fig.14 , Fig.13 is a partial cross-sectional view of a first display area provided by another embodiment; Fig.14 is a partial cross-sectional view of a second display area provided in yet another embodiment.

[0129] like Fig.13 and Fig.14 As shown, in some optional embodiments, the first electrode 410 includes a first sub-electrode 411 located on the side of the first light-emitting unit 311 away from the substrate 100, and in the first display area AA1, the climbing height H0 of the first sub-electrode 411 on the isolation structure 200 is a first height H1, and in the second display area AA2, the climbing height H0 of the first sub-electrode 411 on the isolation structure 200 is a second height H2, and the first height H1 is less than or equal to the second height H2.

[0130] In these optional embodiments, the first height H1 is less than or equal to the second height H2, that is, the climbing height H0 of the first sub-electrode 411 in the second display area AA2 on the isolation structure 200 is greater than or equal to the climbing height H0 of the first sub-electrode 411 in the first display area AA1 on the isolation structure 200, so that the overlapping area between the first sub-electrode 411 corresponding to the first light-emitting unit 311 in the second display area AA2 and the isolation structure 200 is larger, and the overlapping impedance between the first sub-electrode 411 corresponding to the first light-emitting unit 311 in the second display area AA2 and the isolation structure 200 is reduced. The difference in overlapping impedance between the first sub-electrode 411 corresponding to the first light-emitting unit 311 in the first display area AA1 and the second display area AA2 and the isolation structure 200 is reduced, improving the undesirable phenomenon of dark lines appearing in the second display area AA2 due to the large difference in overlapping impedance between the first sub-electrode 411 corresponding to the first light-emitting unit 311 in the first display area AA1 and the second display area AA2 and the isolation structure 200, thereby improving the performance of the display panel 10.

[0131] See also Fig.15 and Fig.16 , Fig.15 is a partial cross-sectional view of a first display area provided by another embodiment; Fig.16 is a partial cross-sectional view of a second display area provided in yet another embodiment.

[0132] like Fig.15 and Fig.16 As shown, in some optional embodiments, the first electrode 410 also includes a second sub-electrode 412 located on the side of the second light-emitting unit 312 away from the substrate 100, and in the first display area AA1, the climbing height H0 of the second sub-electrode 412 on the isolation structure 200 is a third height H3, and in the second display area AA2, the climbing height H0 of the second sub-electrode 412 on the isolation structure 200 is a fourth height H4, and the third height H3 is less than or equal to the fourth height H4.

[0133] In these optional embodiments, the third height H3 is less than or equal to the fourth height H4, that is, the climbing height H0 of the second sub-electrode 412 in the second display area AA2 on the isolation structure 200 is greater than or equal to the climbing height H0 of the second sub-electrode 412 in the first display area AA1 on the isolation structure 200, so that the overlapping area between the second sub-electrode 412 corresponding to the second light-emitting unit 312 in the second display area AA2 and the isolation structure 200 is larger, and the overlapping impedance between the second sub-electrode 412 corresponding to the second light-emitting unit 312 in the second display area AA2 and the isolation structure 200 is reduced. The difference in overlapping impedance between the second sub-electrode 412 corresponding to the second light-emitting unit 312 in the first display area AA1 and the second display area AA2 and the isolation structure 200 is reduced, improving the undesirable phenomenon of dark lines appearing in the second display area AA2 due to the large difference in overlapping impedance between the second sub-electrode 412 corresponding to the second light-emitting unit 312 in the first display area AA1 and the second display area AA2 and the isolation structure 200, thereby improving the performance of the display panel 10.

[0134] See also Fig.17 and Fig.18 , Fig.17 is a partial cross-sectional view of a first display area provided by another embodiment; Fig.18 is a partial cross-sectional view of a second display area provided in yet another embodiment.

[0135] like Fig.17 and Fig.18 As shown, in some optional embodiments, the first electrode 410 also includes a third sub-electrode 413 located on the side of the third light-emitting unit 313 away from the substrate 100, and in the first display area AA1, the climbing height H0 of the third sub-electrode 413 on the isolation structure 200 is a fifth height H5, and in the second display area AA2, the climbing height H0 of the third sub-electrode 413 on the isolation structure 200 is a sixth height H6, and the fifth height H5 is less than or equal to the sixth height H6.

[0136] In these optional embodiments, the fifth height H5 is less than or equal to the sixth height H6, that is, the climbing height H0 of the third sub-electrode 413 in the second display area AA2 on the isolation structure 200 is greater than or equal to the climbing height H0 of the third sub-electrode 413 in the first display area AA1 on the isolation structure 200, so that the overlapping area between the third sub-electrode 413 corresponding to the third light-emitting unit 313 in the second display area AA2 and the isolation structure 200 is larger, and the overlapping impedance between the third sub-electrode 413 corresponding to the third light-emitting unit 313 in the second display area AA2 and the isolation structure 200 is reduced. The difference in overlapping impedance between the third sub-electrode 413 corresponding to the third light-emitting unit 313 of the first display area AA1 and the second display area AA2 and the isolation structure 200 is reduced, improving the undesirable phenomenon of dark lines appearing in the second display area AA2 due to the large difference in overlapping impedance between the third sub-electrode 413 corresponding to the third light-emitting unit 313 of the first display area AA1 and the second display area AA2 and the isolation structure 200, thereby improving the performance of the display panel 10.

[0137] like Figure 2 and Figure 3 As shown, optionally, the first layer 210 has a first bottom surface 211 close to one side of the substrate 100, and the second layer 220 has a second bottom surface 221 close to one side of the substrate 100, and the distance between the edge of the orthographic projection of the first bottom surface 211 on the substrate 100 close to the light-emitting unit 310 and the edge of the orthographic projection of the second bottom surface 221 on the substrate 100 close to the same light-emitting unit 310 is an extension distance D0, and the extension distance D0 corresponding to the light-emitting unit 310 in at least part of the second display area AA2 is less than or equal to the extension distance D0 corresponding to the light-emitting unit 310 of the same color in the first display area AA1, that is, the distance between the orthographic projection edge of the first bottom surface 211 corresponding to the light-emitting unit 310 in the second display area AA2 and the orthographic projection edge of the second bottom surface 221 on the substrate 100 is smaller, so that the overlapping area between the first electrode 410 and the isolation structure 200 in the second display area AA2 is larger, and the overlapping impedance between the first electrode 410 and the isolation structure 200 in the second display area AA2 is reduced.

[0138] The distance between the orthographic edge of the first bottom surface 211 corresponding to the light-emitting unit 310 on the substrate 100 and the orthographic edge of the second bottom surface 221 on the substrate 100 refers to the distance between the orthographic projection of the first bottom surface 211 on the substrate 100 close to the edge of the light-emitting unit 310 and the orthographic projection of the second bottom surface 221 on the substrate 100 close to the edge of the light-emitting unit 310.

[0139] like Figure 3 and Figure 4As shown, in some optional embodiments, the display panel 10 also includes: a second electrode layer 600, located between the substrate 100 and the isolation structure 200, the second electrode layer 600 includes a plurality of second electrodes 610, and at least two second electrodes 610 in the second display area AA2 are electrically connected to each other through a connecting line 620.

[0140] Optionally, an orthographic projection of the second electrode 610 on the substrate 100 overlaps with an orthographic projection of the isolation opening 240 on the substrate 100 .

[0141] In these optional embodiments, the orthographic projection of the second electrode 610 on the substrate 100 and the orthographic projection of the isolation opening 240 on the substrate 100 at least partially overlap, that is, at least the second electrode 610 is exposed by the isolation opening 240 to serve as the electrode of the light-emitting unit 310 to ensure the light emission of the light-emitting unit 310. One of the second electrode 610 and the first electrode 410 serves as the anode of the light-emitting unit 310, and the other serves as the cathode of the light-emitting unit 310. The embodiment of the present application is illustrated by taking the second electrode 610 as the anode of the light-emitting unit 310 and the first electrode 410 as the cathode of the light-emitting unit 310. At least two second electrodes 610 in the second display area AA2 are electrically connected to each other through the connecting line 620, so that one pixel driving circuit in the second display area AA2 drives multiple second electrodes 610.

[0142] Optionally, at least two second electrodes 610 in the second display area AA2 form a second electrode group, and the plurality of second electrode groups are spaced and insulated from each other, and the plurality of second electrodes 610 in the second electrode group are electrically connected to each other through the connecting wire 620, so that one pixel driving circuit drives the plurality of second electrodes 610 in the second electrode group, and each pixel driving circuit drives the same number of second electrodes 610, thereby improving the display uniformity of the light-emitting unit 310. For example, three second electrodes 610 are connected to each other through the connecting wire 620 to form a second electrode group.

[0143] Optionally, the area of ​​the orthographic projection of the second electrode 610 in the first display area AA1 on the substrate 100 is greater than or equal to the area of ​​the orthographic projection of the second electrode 610 in the second display area AA2 on the substrate 100. Since the area of ​​the isolation opening 240 in the first display area AA1 is greater than or equal to the area of ​​the isolation opening 240 in the second display area AA2, the area of ​​the second electrode 610 in the first display area AA1 is set to be greater than or equal to the area of ​​the second electrode 610 in the second display area AA2, so that the second electrode 610 is adapted to the isolation opening 240 to ensure the light emission of the light-emitting unit 310.

[0144] Optionally, the orthographic projection of the second electrode 610 in the first display area AA1 on the substrate 100 is a polygon, such as a quadrilateral, which matches the shape of the isolation opening 240 of the first display area AA1.

[0145] Optionally, the orthographic projection of the second electrode 610 in the second display area AA2 on the substrate 100 is circular or elliptical, which matches the shape of the isolation opening 240 of the second display area AA2.

[0146] like Figures 2 to 4 As shown, optionally, the isolation structure 200 includes a first isolation structure 201 located in the first display area AA1 and a plurality of second isolation structures 202 located in the second display area AA2, and the plurality of second isolation structures 202 are arranged at intervals from each other.

[0147] Optionally, the second isolation structures 202 enclose an isolation opening 240 located in the second display area AA2 , and the isolation openings 240 in the second display area AA2 are independent of each other, so as to avoid mutual influence between the first electrodes 410 in the isolation openings 240 .

[0148] Optionally, the second isolation structure 202 is electrically connected to a signal line close to a side of the substrate 100 to provide an electrical signal to the second isolation structure 202 .

[0149] Optionally, light-transmitting gaps 250 are formed between adjacent second isolation structures 202 , and the second isolation structures 202 in the second display area AA2 are spaced apart from each other to form light-transmitting gaps 250 , thereby increasing the light-transmitting area of ​​the second display area AA2 and improving the transmittance of the second display area AA2 .

[0150] Optionally, the first isolation structure 201 encloses a first isolation opening, and the second isolation structure 202 encloses a second isolation opening, and the orthographic projection area of ​​the first isolation opening on the substrate 100 is greater than or equal to the orthographic projection area of ​​the second isolation opening on the substrate 100, so that the orthographic projection area of ​​the first electrode 410 formed by the partition in the first display area AA1 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the first electrode 410 formed by the partition in the second display area AA2 on the substrate 100, and the area of ​​the first electrode 410 in the first display area AA1 is larger, and the overlapping area with the isolation structure 200 is larger. Therefore, the extension distance D0 of the isolation structure 200 corresponding to the light-emitting unit 310 in the second display area AA2 where the first electrode 410 is smaller is set to be smaller, so that the overlapping area between the first electrode 410 and the isolation structure 200 in the second display area AA2 is increased, thereby reducing the overlapping impedance between the first electrode 410 and the isolation structure 200 in the second display area AA2. The difference in overlapping impedance between the first electrode 410 of the first display area AA1 and the second display area AA2 and the isolation structure 200 is reduced, thereby improving the undesirable phenomenon of dark lines appearing in the second display area AA2 due to the large difference in overlapping impedance between the first electrode 410 of the first display area AA1 and the second display area AA2 and the isolation structure 200, thereby improving the performance of the display panel 10.

[0151] Optionally, the orthographic projection of the first isolation opening on the substrate 100 is a polygonal structure, such as a quadrilateral.

[0152] Optionally, the orthographic projection of the second isolation opening on the substrate 100 is circular or elliptical, and the area of ​​the circular or elliptical second isolation opening is easier to be made smaller, so that the area of ​​the light-transmitting gap 250 of the second display area AA2 is easier to be made larger, thereby improving the transmittance of the second display area AA2.

[0153] Optionally, the first isolation structure 201 and the second isolation structure 202 are spaced apart to further increase the light-transmitting area of ​​the second display area AA2. Optionally, the first isolation structure 201 and the second isolation structure 202 are in contact with each other to achieve electrical connection between the first isolation structure 201 and the second isolation structure 202.

[0154] Optionally, the first isolation structure 201 is a mesh structure, the mesh structure of the first isolation structure 201 encloses a first isolation opening, and the first isolation structure 201 is interconnected at various locations, connecting the first electrodes 410 in the first isolation openings to each other to form a full-surface electrode.

[0155] Optionally, the width of the first isolation structure 201 is greater than or equal to the width of the second isolation structure 202, and the second isolation structure 202 is set to a smaller width, thereby reducing the area of ​​the second isolation structure 202 and increasing the light-transmitting area of ​​the second display area AA2. The width of the first isolation structure 201 refers to the size of the first isolation structure 201 in the side-by-side direction of two adjacent first isolation openings, and the width of the second isolation structure 202 refers to the size of the second isolation structure 202 in the direction from the second isolation opening to the light-transmitting gap 250.

[0156] Optionally, the orthographic projection area of ​​the first isolation structure 201 on the substrate 100 and the area of ​​the first display area AA1 account for a first ratio, the orthographic projection area of ​​the second isolation structure 202 on the substrate 100 and the area of ​​the second display area AA2 account for a second ratio, and the first ratio is greater than or equal to the second ratio. The first ratio is the metal density of the first isolation structure 201 in the first display area AA1, and the second ratio is the metal density of the second isolation structure 202 in the second display area AA2. The first ratio is greater than or equal to the second ratio, the metal density of the second display area AA2 is lower, the area of ​​the second isolation structure 202 accounts for a smaller proportion, and the light-transmitting area accounts for a larger proportion, thereby improving the transmittance of the second display area AA2.

[0157] In some optional embodiments, the display panel 10 further includes: a pixel definition layer 500 located on the substrate 100 , the pixel definition layer 500 includes a pixel defining portion 510 and a pixel opening 520 enclosed by the pixel defining portion 510 , and the pixel opening 520 is connected to the isolation opening 240 .

[0158] In these optional embodiments, the pixel opening 520 formed by the pixel defining portion 510 is used to define the light emitting area of ​​the display panel 10. The pixel opening 520 is connected to the isolation opening 240 to reduce the shielding of the pixel opening 520 by the isolation structure 200, thereby ensuring the light emitting effect of the display panel 10.

[0159] In some optional embodiments, the isolation structure 200 is located on a side of the pixel defining portion 510 facing away from the substrate 100 .

[0160] In these optional embodiments, the isolation structure 200 is disposed on the pixel defining portion 510, and the isolation structure 200 has a large height difference equivalent to the pixel opening 520. When preparing the first electrode layer 400, due to the large height difference, the first electrode layer 400 is more easily disconnected at the isolation structure 200 position, thereby reducing the difficulty of preparing the first electrode layer 400.

[0161] Optionally, the orthographic projection area of ​​the pixel opening 520 in the first display area AA1 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the pixel opening 520 in the second display area AA2 on the substrate 100, and the size of the pixel opening 520 is adapted to the size of the isolation opening 240 so that the pixel opening 520 can accommodate the light-emitting unit 310 of corresponding size to ensure the light-emitting area of ​​the light-emitting unit 310.

[0162] In some optional embodiments, the second layer 220 includes a conductive material or an insulating material.

[0163] In these optional embodiments, the second layer 220 includes a conductive material, for example, the second layer 220 includes a non-metallic conductive material or a metallic conductive material. When the second layer 220 is a non-metallic conductive material or an insulating material, the second layer 220 is difficult to be etched during wet etching of the first layer 210 using an etching solution, so that the first layer 210 is more easily concavely arranged relative to the second layer 220.

[0164] In some optional embodiments, the second layer 220 includes a metal material, and the first layer 210 and the second layer 220 are made of different materials.

[0165] In these optional embodiments, when both the first layer 210 and the second layer 220 are made of metal materials, the first layer 210 may be wet-etched with an etching solution, and the etching rate of the second layer 220 may be set to be lower than the etching rate of the first layer 210 by setting the etching solution. Since the etching rate of the first layer 210 is relatively high, when the etching solution is used for wet etching, even if the second layer 220 is etched to a certain extent, the first layer 210 is etched faster, so that the first layer 210 is set concave relative to the second layer 220.

[0166] See also Fig.19 , Fig.19 is a partial cross-sectional view of a first display area provided in yet another embodiment.

[0167] like Fig.19 As shown, in some optional embodiments, 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 .

[0168] In these optional embodiments, in order to obtain the first layer 210 with a concave setting, the first layer 210 has a faster etching rate than the second layer 220 and the third layer 230 during the etching process, thereby forming the concave first layer 210. Since the etching rate of the first layer 210 is faster, the waste generated by etching is more likely to enter other positions of the display panel 10, thereby causing adverse effects. After the third layer 230 is set, the first layer 210 can be well attached to the third layer 230, and the generated etching waste falls on the third layer 230, which is easy to clean.

[0169] Optionally, the material of the second layer 220 is titanium (Ti), the material of the first layer 210 is aluminum (Al), and the material of the third layer 230 is titanium (Ti) or molybdenum (Mo), that is, the isolation structure 200 is a three-layer metal composite material of Ti / Al / Ti (titanium / aluminum / titanium) or Ti / Al / Mo (titanium / aluminum / molybdenum).

[0170] The composition, preparation and other contents of the isolation structure 200 are further described in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, and PCT / CN2024 / 099072 for reference.

[0171] 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).

[0172] Please also read Figure 1 , Fig. 20 and Fig.21 , Fig. 20 is a partial cross-sectional view of a first display area provided by another embodiment; Fig.21 is a partial cross-sectional view of a second display area provided in yet another embodiment.

[0173] like Figure 1 , Fig. 20 and Fig.21As shown, the second aspect of the present application provides a display panel 10, the display panel 10 includes a first display area AA1 and a second display area AA2 adjacent to the first display area AA1, the display panel 10 also includes: a substrate 100; an isolation structure 200, located on the substrate 100, the isolation structure 200 encloses a plurality of isolation openings 240, the isolation structure 200 includes a first layer 210 and a second layer 220 located on the side of the first layer 210 away from the substrate 100, the second layer 220 includes a protrusion 260 protruding relative to the first layer 210; a light-emitting layer 300, located on the substrate 100, the light-emitting layer 300 includes a light-emitting unit 310 located in the isolation opening 240, wherein the width L of the protrusion corresponding to the light-emitting unit 310 in at least part of the second display area AA2 is less than or equal to the width L of the protrusion corresponding to the light-emitting unit 310 of the same color in the first display area AA1.

[0174] The width L of the protrusion refers to the size of the protrusion 260 in the side-by-side direction of adjacent isolation openings 240. The width L of the protrusion corresponding to the light-emitting unit 310 refers to the width L of the protrusion on the peripheral side of the isolation opening 240 where the light-emitting unit 310 is located, that is, the width of the protrusion 260 on the side close to the light-emitting unit 310.

[0175] 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 and a light-emitting layer 300. The second display area AA2 is used to set a photosensitive component. The transmittance of the second display area AA2 is greater than or equal to the transmittance of the first display area AA1, so as to improve the photosensitive effect of the second display area AA2. The first layer 210 and the second layer 220 are arranged to form an isolation structure 200. The orthographic projection of the first layer 210 arranged close to the substrate 100 on 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 greater than or equal to the area of ​​the first layer 210. The second layer 220 covers the surface of the first layer 210 close to the second layer 220. At this time, the first layer 210 is recessed relative to the second layer 220 in a direction away from the isolation opening 240. The width L of the protrusion corresponding to the light-emitting unit 310 in at least part of the second display area AA2 is less than or equal to the width L of the protrusion corresponding to the light-emitting unit 310 of the same color in the first display area AA1. When preparing the first electrode 410, the periphery of the first electrode 410 overlaps with the side wall of the first layer 210 of the isolation structure 200. Since the width L of the protrusion corresponding to the light-emitting unit 310 in the second display area AA2 is smaller, the overlap area of ​​the first electrode 410 and the isolation structure 200 in the second display area AA2 is larger, thereby reducing the overlap impedance of the first electrode 410 and the isolation structure 200 in the second display area AA2. The difference in overlap impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2 is reduced, improving the undesirable phenomenon of dark lines appearing in the second display area AA2 due to the large difference in overlap impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2, thereby improving the performance of the display panel 10.

[0176] like Fig.11 and Fig.12 As shown, the third aspect of the present application provides a display panel 10, the display panel 10 includes a first display area AA1 and a second display area AA2, the transmittance of the first display area AA1 is less than the transmittance of the second display area AA2, and the display panel 10 includes: a substrate 100; an isolation structure 200, located on the substrate 100, the isolation structure 200 encloses a plurality of isolation openings 240; a light-emitting layer 300, located on the substrate 100, the light-emitting layer 300 includes a light-emitting unit 310 located in the isolation opening 240; a first electrode layer 400, located on the side of the light-emitting layer 300 away from the substrate 100, the first electrode layer 400 includes a plurality of first electrodes 410 arranged at intervals, and the first electrodes 410 are electrically connected to the isolation structure 200; in the first electrodes 410 corresponding to the light-emitting units 310 of the same color, the climbing height H0 of the first electrode 410 located in the first display area AA1 on the isolation structure 200 is less than or equal to the climbing height H0 of the first electrode 410 located in the second display area AA2 on the isolation structure 200.

[0177] 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 and a light-emitting layer 300. The second display area AA2 is used to set a photosensitive component. The transmittance of the second display area AA2 is greater than or equal to the transmittance of the first display area AA1, thereby improving the photosensitivity of the second display area AA2. The light-emitting layer 300 is difficult to connect at the edge of the isolation structure 200, so it breaks. The light-emitting layer 300 breaks 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 the preparation of the light-emitting unit 310 can be prepared without using a precision mask plate, which can reduce the development and use of precision masks and reduce the preparation cost. The climbing height H0 of the first electrode 410 of the isolation opening 240 located in the second display area AA2 on the isolation structure 200 is larger, so that the overlap area of ​​the first electrode 410 and the isolation structure 200 in the second display area AA2 is larger, and the overlap impedance of the first electrode 410 and the isolation structure 200 in the second display area AA2 is reduced. The difference in overlapping impedance between the first electrode 410 of the first display area AA1 and the second display area AA2 and the isolation structure 200 is reduced, thereby improving the undesirable phenomenon of dark lines appearing in the second display area AA2 due to the large difference in overlapping impedance between the first electrode 410 of the first display area AA1 and the second display area AA2 and the isolation structure 200, thereby improving the performance of the display panel 10.

[0178] The structural design in this embodiment can be applied to other display panels 10 , and the specific selection can be made according to actual conditions, and this application does not impose any specific restrictions on it.

[0179] The embodiment of the fourth aspect of the present application further provides a display device, comprising the display panel 10 of any of the above embodiments. Since the display device provided by the embodiment of the third aspect of the present application comprises the display panel 10 of any of the above embodiments, the display device provided by the embodiment of the third aspect of the present application has the beneficial effects of the display panel 10 of any of the above embodiments, which will not be described in detail here.

[0180] 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.

[0181] See also Figures 1 to 22 , Fig. 22 It is a schematic flow chart of a method for preparing a display panel provided in an embodiment of the present application.

[0182] The fifth aspect of the present application also provides a method for preparing a display panel 10. The display panel 10 may be the display panel 10 provided by any of the above embodiments. The display panel 10 includes a first display area AA1 and a second display area AA2 adjacent to the first display area AA1. Fig. 22 As shown, the preparation method comprises:

[0183] Step S01: Prepare an isolation structure 200 on a substrate 100, the isolation structure 200 encloses a plurality of isolation openings 240, the isolation structure 200 includes a first layer 210 and a second layer 220 located on the side of the first layer 210 facing away from the substrate 100, 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, and the distance between the edge of the orthographic projection of the first layer 210 on the substrate 100 facing the isolation opening 240 and the edge of the orthographic projection of the second layer 220 on the substrate 100 facing the same isolation opening 240 is the extension distance D0.

[0184] Step S02: Prepare a light-emitting layer 300 on the substrate 100, the light-emitting layer 300 includes light-emitting units 310 located in the isolation opening 240, wherein the extension distance D0 corresponding to the light-emitting units 310 in at least part of the second display area AA2 is less than or equal to the extension distance D0 corresponding to the light-emitting units 310 of the same color in the first display area AA1.

[0185] According to the preparation method of the fourth aspect of the present application, an isolation structure 200 is prepared through step S01, and a first layer 210 and a second layer 220 are arranged to form an isolation structure 200. The orthographic projection of the first layer 210 arranged close to the substrate 100 on 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 greater than or equal to the area of ​​the first layer 210. The second layer 220 covers the surface of the first layer 210 close to the second layer 220. At this time, 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, the light-emitting layer 300 has a large drop at the edge of the isolation structure 200, and the first layer 210 is concave relative to the second layer 220. The light-emitting layer 300 is difficult to connect at the edge of the isolation structure 200, so it breaks. The light-emitting layer 300 breaks 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 preparing the light-emitting unit 310 does not require the use of a precision mask plate, which can reduce the development and use of precision masks and reduce the preparation cost. The light-emitting layer 300 is prepared by step S02. The extension distance D0 corresponding to the light-emitting unit 310 in at least part of the second display area AA2 is less than or equal to the extension distance D0 corresponding to the light-emitting unit 310 of the same color in the first display area AA1. When preparing the first electrode 410, the periphery of the first electrode 410 overlaps with the side wall of the first layer 210 of the isolation structure 200. Since the extension distance D0 of the isolation structure 200 corresponding to the light-emitting unit 310 in the second display area AA2 is smaller, the overlap area of ​​the first electrode 410 and the isolation structure 200 in the second display area AA2 is larger, thereby reducing the overlap impedance of the first electrode 410 and the isolation structure 200 in the second display area AA2. The difference in overlap impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2 is reduced, improving the undesirable phenomenon of dark lines in the second display area AA2 caused by the large difference in overlap impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2, thereby improving the performance of the display panel 10.

[0186] In some optional embodiments, in step S01, the method includes:

[0187] Preparing an isolation material layer on the substrate 100;

[0188] The isolation material layer located in the first display area AA1 and the second display area AA2 is patterned simultaneously using a first mask to form a first isolation opening 240 located in the first display area AA1 , a second isolation opening 240 located in the second display area AA2 , and a light-transmitting gap 250 .

[0189] In these optional embodiments, the isolation material layers of the first display area AA1 and the second display area AA2 are patterned at the same time using the same mask, so that the extension distance D0 corresponding to the light-emitting unit 310 in the second display area AA2 is less than or equal to the extension distance D0 corresponding to the light-emitting unit 310 of the same color in the first display area AA1, and the overlap area between the first electrode 410 and the isolation structure 200 in the second display area AA2 is larger, thereby reducing the overlap impedance between the first electrode 410 and the isolation structure 200 in the second display area AA2. The difference in overlap impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2 is reduced, improving the undesirable phenomenon of dark lines in the second display area AA2 due to the large difference in overlap impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2, thereby improving the performance of the display panel 10.

[0190] Optionally, the step of simultaneously patterning the isolation material layer located in the first display area AA1 and the second display area AA2 using the first mask includes:

[0191] Using a first mask, dry etching is performed on the isolation material layer located in the first display area AA1 and the second display area AA2;

[0192] The isolation material layer located in the first display area AA1 and the second display area AA2 is wet-etched using a wet-etching solution.

[0193] In these optional embodiments, when the wet etching solution is used to wet-etch the isolation material layer of the first display area AA1 and the second display area AA2, the wet etching solution in the first display area AA1 only needs to etch to form the first isolation opening 240, while the wet etching solution in the second display area AA2 needs to etch to form the second isolation opening 240 and the light-transmitting gap 250. Therefore, part of the wet etching solution in the second display area AA2 etches the isolation material layer at the position of the light-transmitting gap 250, and the other part of the wet etching solution etches the isolation material layer at the position of the second isolation opening 240. The amount of wet etching solution used to etch the second isolation opening 240 is less than the amount of wet etching solution used to etch the first isolation opening 240, so that the side etching degree of the second isolation opening 240 is reduced, that is, the extension distance D0 corresponding to the light-emitting unit 310 in the second display area AA2 is less than or equal to the extension distance D0 corresponding to the light-emitting unit 310 of the same color in the first display area AA1, and the overlap area between the first electrode 410 and the isolation structure 200 in the second display area AA2 is larger, so that the overlap impedance between the first electrode 410 and the isolation structure 200 in the second display area AA2 is reduced. The difference in overlap impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2 is reduced, and the undesirable phenomenon that dark lines appear in the second display area AA2 due to the large difference in overlap impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2 is improved, thereby improving the performance of the display panel 10.

[0194] In some optional embodiments, in step S01, the method includes:

[0195] Preparing an isolation material layer on the substrate 100;

[0196] Using a second mask to perform patterning processing on the isolation material layer located in the first display area AA1 for a first period of time;

[0197] The isolation material layer located in the second display area AA2 is patterned for a second period of time using a third mask, and the first period of time is greater than or equal to the second period of time.

[0198] In these optional embodiments, different masks are used to pattern the isolation material layers of the first display area AA1 and the second display area AA2, respectively, and the patterning time of the isolation material layer of the first display area AA1 is longer than the patterning time of the second display area AA2, so that the extension distance D0 corresponding to the light-emitting unit 310 in the second display area AA2 is less than or equal to the extension distance D0 corresponding to the light-emitting unit 310 of the same color in the first display area AA1, and the overlap area between the first electrode 410 and the isolation structure 200 in the second display area AA2 is larger, so that the overlap impedance between the first electrode 410 and the isolation structure 200 in the second display area AA2 is reduced. The difference in overlap impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2 is reduced, and the undesirable phenomenon that dark lines appear in the second display area AA2 due to the large difference in overlap impedance between the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2 is improved, thereby improving the performance of the display panel 10.

[0199] According to the embodiments described above, these embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of the present application and the modifications based on the present application. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized in that: The display panel includes a first display area and a second display area, the light transmittance of the first display area is less than the light transmittance of the second display area, and the display panel includes: substrate; an isolation structure, located on the substrate, the isolation structure encloses a plurality of isolation openings, the isolation structure comprises a first layer and a second layer located on a side of the first layer away from the substrate, the orthographic projection of the first layer on the substrate is located within the orthographic projection of the second layer on the substrate; a light-emitting layer, located on the substrate, the light-emitting layer comprising a light-emitting unit located in the isolation opening, Among them, the distance between the edge of the orthographic projection of the first layer on the substrate close to the light-emitting unit and the edge of the orthographic projection of the second layer on the substrate close to the same light-emitting unit is the extension distance, and the extension distance corresponding to the light-emitting units in at least part of the second display area is less than or equal to the extension distance corresponding to the light-emitting units of the same color in the first display area.

2. The display panel according to claim 1, characterized in that: The extension distances corresponding to the plurality of light-emitting units with the same color in the first display area are the same, and / or the extension distances corresponding to the plurality of light-emitting units with the same color in the second display area are the same.

3. The display panel according to claim 1, characterized in that: Among the isolation openings corresponding to at least some of the light-emitting units of the same color, an orthographic projection area of ​​the isolation opening located in the first display area on the substrate is greater than or equal to an orthographic projection area of ​​the isolation opening located in the second display area on the substrate.

4. The display panel according to claim 1, characterized in that: The display panel further includes: A first electrode layer, located on a side of the light-emitting layer away from the substrate; Preferably, the first electrode layer includes a plurality of first electrodes arranged at intervals, and the first electrodes are electrically connected to the isolation structure; Preferably, the orthographic projection of each of the light-emitting units on the substrate is located within the orthographic projection of each of the first electrodes on the substrate; Preferably, the light emitting unit and the isolation structure are spaced apart from each other.

5. The display panel according to claim 4, characterized in that: An orthographic projection area of ​​the first electrode in the first display area on the substrate is greater than or equal to an orthographic projection area of ​​the first electrode in the second display area on the substrate.

6. The display panel according to claim 4, characterized in that: In the first electrodes corresponding to the light-emitting units of the same color, a climbing height of the first electrode located in the first display area on the isolation structure is less than or equal to a climbing height of the first electrode located in the second display area on the isolation structure.

7. The display panel according to claim 1, characterized in that: The first layer has a first bottom surface close to one side of the substrate, the second layer has a second bottom surface close to one side of the substrate, and the distance between the edge of the orthographic projection of the first bottom surface on the substrate close to the light-emitting unit and the edge of the orthographic projection of the second bottom surface on the substrate close to the same light-emitting unit is the extended distance.

8. The display panel according to claim 1, characterized in that: The display panel further includes: A second electrode layer, located between the substrate and the isolation structure, the second electrode layer comprising a plurality of second electrodes, at least two of the second electrodes in the second display area being electrically connected to each other via a connecting line; Preferably, at least two of the second electrodes in the second display area form a second electrode group, and a plurality of the second electrode groups are spaced and insulated from each other.

9. The display panel according to claim 8, characterized in that: The orthographic projection area of ​​the second electrode in the first display area on the substrate is greater than or equal to the orthographic projection area of ​​the second electrode in the second display area on the substrate; Preferably, the orthographic projection of the second electrode in the first display area on the substrate is a polygon; Preferably, the orthographic projection of the second electrode in the second display area on the substrate is circular or elliptical.

10. The display panel according to claim 1, characterized in that: The isolation structure includes a first isolation structure located in the first display area and a plurality of second isolation structures located in the second display area, wherein the plurality of second isolation structures are arranged at intervals from each other; Preferably, each of the second isolation structures encloses and forms the isolation opening located in the second display area; Preferably, the second isolation structure is electrically connected to a signal line close to a side of the substrate; Preferably, light-transmitting gaps are formed between adjacent second isolation structures.

11. The display panel according to claim 10, characterized in that: The first isolation structure encloses a first isolation opening, the second isolation structure encloses a second isolation opening, and an orthographic projection area of ​​the first isolation opening on the substrate is greater than or equal to an orthographic projection area of ​​the second isolation opening on the substrate; Preferably, the display panel further comprises a signal line located between the substrate and the second isolation structure, and the second isolation structure is electrically connected to the signal line; Preferably, the orthographic projection of the first isolation opening on the substrate is a polygonal structure; Preferably, the orthographic projection of the second isolation opening on the substrate is circular or elliptical; Preferably, the first isolation structure and the second isolation structure are spaced apart from each other; Preferably, the first isolation structure is a mesh structure; Preferably, the width of the first isolation structure is greater than or equal to the width of the second isolation structure; Preferably, the first isolation structure has a first ratio to an area of ​​the orthographic projection of the substrate and an area of ​​the first display area, the second isolation structure has a second ratio to an area of ​​the orthographic projection of the substrate and an area of ​​the second display area, and the first ratio is greater than or equal to the second ratio.

12. The display panel according to claim 1, characterized in that: The display panel further includes: A pixel definition layer, located on the substrate, the pixel definition layer comprises a pixel definition portion and a pixel opening formed by the pixel definition portion, the pixel opening is connected to the isolation opening; Preferably, the isolation structure is located on a side of the pixel defining portion facing away from the substrate.

13. The display panel according to claim 12, characterized in that: An orthographic projection area of ​​the pixel opening in the first display area on the substrate is greater than or equal to an orthographic projection area of ​​the pixel opening in the second display area on the substrate.

14. A display panel, characterized in that: The display panel includes a first display area and a second display area adjacent to the first display area, and the display panel further includes: substrate; an isolation structure, located on the substrate, the isolation structure encloses a plurality of isolation openings, the isolation structure comprises a first layer and a second layer located on a side of the first layer away from the substrate, the second layer comprises a protrusion protruding relative to the first layer; a light-emitting layer, located on the substrate, the light-emitting layer comprising light-emitting units located in the isolation openings, Wherein, the width of the protrusion corresponding to at least part of the light-emitting units in the second display area is less than or equal to the width of the protrusion corresponding to the light-emitting units of the same color in the first display area.

15. The display panel according to claim 14, characterized in that: The widths of the protrusions corresponding to the plurality of light-emitting units of the same color in the first display area are the same, and / or the widths of the protrusions corresponding to the plurality of light-emitting units of the same color in the second display area are the same.

16. A display panel, characterized in that: The display panel includes a first display area and a second display area, the light transmittance of the first display area is less than the light transmittance of the second display area, and the display panel includes: substrate; An isolation structure is located on the substrate, and the isolation structure encloses a plurality of isolation openings. A light-emitting layer, located on the substrate, wherein the light-emitting layer includes light-emitting units located in the isolation opening; A first electrode layer, located on a side of the light-emitting layer away from the substrate, the first electrode layer comprising a plurality of first electrodes arranged at intervals, the first electrodes being electrically connected to the isolation structure; In the first electrodes corresponding to the light-emitting units of the same color, a climbing height of the first electrode located in the first display area on the isolation structure is less than or equal to a climbing height of the first electrode located in the second display area on the isolation structure.

17. A display device, characterized in that: A display panel comprising any one of claims 1-16.

18. A method for preparing a display panel, characterized in that: The display panel includes a first display area and a second display area adjacent to the first display area, and the method includes: An isolation structure is prepared on a substrate, wherein the isolation structure encloses a plurality of isolation openings, wherein the isolation structure comprises a first layer and a second layer located on a side of the first layer facing away from the substrate, wherein an orthographic projection of the first layer on the substrate is located within an orthographic projection of the second layer on the substrate, and a distance between an edge of an orthographic projection of the first layer on the substrate facing the isolation opening and an edge of an orthographic projection of the second layer on the substrate facing the same isolation opening is an extension distance; A light-emitting layer is prepared on the substrate, wherein the light-emitting layer includes light-emitting units located in the isolation opening, wherein the extension distance corresponding to at least part of the light-emitting units in the second display area is less than or equal to the extension distance corresponding to the light-emitting units of the same color in the first display area.

19. The preparation method according to claim 18, characterized in that: In the step of preparing an isolation structure on a substrate, the method comprises: preparing an isolation material layer on a substrate; Using a first mask, patterning the isolation material layer located in the first display area and the second display area at the same time to form a first isolation opening located in the first display area, a second isolation opening located in the second display area, and a light-transmitting gap; Preferably, the step of simultaneously patterning the isolation material layer located in the first display area and the second display area using a first mask comprises: Using a first mask to dry-etch the isolation material layer located in the first display area and the second display area; The isolation material layer located in the first display area and the second display area is wet-etched using a wet-etching solution.

20. The preparation method according to claim 18, characterized in that: In the step of preparing an isolation structure on a substrate, the method comprises: preparing an isolation material layer on a substrate; Using a second mask to perform patterning processing on the isolation material layer located in the first display area for a first period of time; A third mask is used to perform patterning processing on the isolation material layer located in the second display area for a second period of time, wherein the first period of time is greater than or equal to the second period of time.

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