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, a light-emitting layer and a burr structure. When the light-emitting layer is prepared, the light-emitting layer generates large fall at the edge of the isolation structure and is difficult to connect, so that breakage occurs, the light-emitting layer is broken to form mutually disconnected light-emitting units, crosstalk of carriers in the light-emitting layer is reduced, the display effect of the display panel is improved, a precise mask plate is not needed for preparing the light-emitting units, and the production cost is reduced. The development and use of the precise mask plate can be reduced, and the preparation cost is reduced. At least part of the isolation structures are arranged at intervals, so that more gaps are formed, the area of the light-transmitting area is increased, and the transmittance of the display panel is improved. The peripheral side of at least part of the isolation structure is provided with a burr structure, so that the diffraction regularity of external light rays passing through the light-transmitting area is destroyed by the burr structure, the diffraction of the external light rays is inhibited, and the photosensitive effect of the area and the use performance of the display panel are 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, comprising: a substrate; an isolation structure located on the substrate, at least a portion of the isolation structures being spaced apart from each other, the isolation structures enclosing an isolation opening; a light-emitting layer located on the substrate, the light-emitting layer comprising a light-emitting unit at least partially located in the isolation opening; and a burr structure, at least a portion of the burr structure being arranged around at least a portion of the isolation structure.

[0006] According to the implementation of the first aspect of the present application, the burr structure is arranged around the isolation structure.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the burr structure on the substrate is an irregular shape.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, the burr structure includes a plurality of protrusions, at least some of the protrusions have different shapes of the orthographic projections on the substrate, and / or at least some of the protrusions have different sizes of the orthographic projections on the substrate, and / or the protrusions have a farthest end away from the isolation opening, and at least some of the farthest ends of the protrusions have different distances from the isolation structure.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the burr structure and at least a portion of the isolation structure are arranged in the same layer.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure includes a first layer and a second layer located on a side of the first layer facing away from the substrate, and the orthographic projection of the first layer on the substrate is located within the orthographic projection of the second layer on the substrate.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the burr structure is arranged on the same layer as at least one of the first layer and the second layer.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, the first layer includes a conductive material.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, the second layer includes a conductive material or an insulating material.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, the first layer and the second layer both include metal materials, and the materials of the first layer and the second layer are different.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure further includes a third layer located on the side of the first layer facing the substrate, and the orthographic projection of the first layer on the substrate is located within the orthographic projection of the third layer on the substrate.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, the burr structure is arranged on the same layer as at least one of the first layer, the second layer and the third layer.

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, the burr structure and the isolation structure are integrally or separately arranged.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the burr structure includes an opaque material.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the burr structure is the same as at least part of the material of the isolation structure.

[0020] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel includes a second display area and a first display area, the transmittance of the second display area is less than that of the first display area, the isolation structure includes a second isolation structure located in the second display area and a plurality of first isolation structures located in the first display area, the plurality of first isolation structures are spaced apart from each other, the second isolation structures enclose a second isolation opening, and the first isolation structures enclose a first isolation opening.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, the burr structure is arranged around at least a portion of the first isolation structure.

[0022] According to any of the aforementioned embodiments of the first aspect of the present application, the second isolation structure is continuously arranged in the second display area.

[0023] According to any of the aforementioned embodiments of the first aspect of the present application, the second isolation structure is enclosed in a mesh structure.

[0024] According to any of the aforementioned embodiments of the first aspect of the present application, a first isolation structure encloses a plurality of first isolation openings, or, in the first display area, a plurality of light-emitting units form a display unit, and the plurality of display units are distributed in an array, and the plurality of light-emitting units of the display unit are located in the plurality of first isolation openings enclosed by the same first isolation structure.

[0025] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection area of ​​the second isolation opening on the substrate is greater than or equal to the orthographic projection area of ​​the first isolation opening on the substrate.

[0026] 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 on the substrate to the area of ​​the first display area is a first ratio, the ratio of the sum of the areas of the second isolation structure on the substrate to the area of ​​the second display area is a second ratio, and the first ratio is smaller than the second ratio.

[0027] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the burr structure on the substrate is arranged around the orthographic projection of a first isolation opening on the substrate, or the orthographic projection of the burr structure on the substrate is arranged around the orthographic projection of the display unit on the substrate.

[0028] According to any of the aforementioned implementations of the first aspect of the present application, the display panel further includes: a connecting portion, at least a portion of which is connected between two adjacent first isolation structures.

[0029] According to any of the aforementioned embodiments of the first aspect of the present application, the connecting portion is arranged in the same layer as at least a portion of the isolation structure.

[0030] According to any of the aforementioned embodiments of the first aspect of the present application, the burr structure includes a first burr structure and a second burr structure, the first burr structure is arranged around at least part of the isolation structure, and the second burr structure is arranged on at least one side of the connecting portion in a direction parallel to the substrate.

[0031] According to any of the aforementioned embodiments of the first aspect of the present application, the plurality of first isolation structures are distributed in an array along the first direction and / or the second direction, and the first direction and the second direction intersect.

[0032] According to any of the aforementioned embodiments of the first aspect of the present application, the connecting portion extends along the first direction and / or the second direction.

[0033] According to any of the aforementioned embodiments of the first aspect of the present application, all connecting portions extend along the first direction.

[0034] According to any of the aforementioned embodiments of the first aspect of the present application, all connecting portions extend along the second direction.

[0035] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the connecting portion on the substrate includes a straight line segment and / or a curved line segment.

[0036] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the connecting portion on the substrate includes an irregular curve segment.

[0037] According to any of the aforementioned embodiments of the first aspect of the present application, there are at least two connecting parts, and the shapes of the two connecting parts are different or the same.

[0038] According to any of the aforementioned embodiments of the first aspect of the present application, the extension directions of the two connecting parts are different or the same.

[0039] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel also includes: a first electrode layer, located on the side of the light-emitting layer away from the substrate, the first electrode layer includes a plurality of first electrodes, at least part of the first electrodes are located in the isolation opening, and the first electrodes are electrically connected to the isolation structure.

[0040] 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.

[0041] 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.

[0042] 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 is connected to the isolation opening.

[0043] 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.

[0044] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel further includes: a second electrode, located between the substrate and the light-emitting unit, and the second electrode is exposed by the pixel opening.

[0045] According to a second aspect of the present application, there is provided a display panel, comprising a second display area and a first display area, wherein the transmittance of the second display area is less than that of the first display area, and the display panel further comprises: a substrate; an isolation structure located on the substrate, the isolation structure comprising a second isolation structure located in the second display area and a plurality of first isolation structures located in the first display area, the plurality of first isolation structures being arranged at intervals from each other, the second isolation structures enclosing a second isolation opening, and the first isolation structures enclosing a first isolation opening; a light-emitting layer located on the substrate, the light-emitting layer comprising light-emitting units at least partially located in the first isolation opening and the second isolation opening; and a burr structure, wherein at least a portion of the burr structure is arranged around at least a portion of the first isolation structure, and the orthographic projection of the burr structure on the substrate is an irregular shape.

[0046] An embodiment of a third aspect of the present application provides a display device, which includes a display panel according to any of the above embodiments.

[0047] An embodiment of a fourth aspect of the present application provides a method for preparing a display panel, the method comprising:

[0048] An isolation structure and a burr structure are prepared on the substrate, wherein at least part of the isolation structures are arranged at intervals from each other, the isolation structures are enclosed to form an isolation opening, and at least part of the burr structure is arranged around at least part of the isolation structure;

[0049] A light-emitting layer is prepared on the substrate, wherein the light-emitting layer includes a light-emitting unit at least partially located in the isolation opening.

[0050] According to the display panel of the embodiment of the present application, the display panel includes a substrate, an isolation structure, a light-emitting layer and a burr structure. When preparing the light-emitting layer, the light-emitting layer has a large drop at the edge of the isolation structure, which is difficult to connect, and thus breaks. The light-emitting layer breaks to form light-emitting units that are disconnected from each other, thereby reducing the crosstalk of carriers in the light-emitting layer and improving the display effect of the display panel. In addition, the light-emitting units can be prepared without the use of precision masks, which can reduce the development and use of precision masks and reduce the preparation cost. At least part of the isolation structure is arranged at intervals to form more gaps to increase the area of ​​the light-transmitting area and improve the transmittance of the display panel. A burr structure is arranged on the periphery of at least part of the isolation structure, so that the diffraction regularity of external light when passing through the light-transmitting area is destroyed by the burr structure, thereby suppressing the diffraction of external light and improving the photosensitivity of the area and the performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] 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.

[0052] Figure 1 is a schematic top view of a display panel provided in an embodiment of the present application;

[0053] Figure 2 is a partial top view of the first display area provided in an embodiment of the present application;

[0054] Figure 3 yes Figure 2 A partial enlarged view of

[0055] Figure 4 is a partial cross-sectional view of the first display area provided in an embodiment of the present application;

[0056] Figure 5 is a partial cross-sectional view of a first display area provided by another embodiment;

[0057] Figure 6 is a partial cross-sectional view of a first display area provided by another embodiment;

[0058] Figure 7 is a partial cross-sectional view of a first display area provided by yet another embodiment;

[0059] Figure 8 is a partial cross-sectional view of a first display area provided by another embodiment; Fig. 9 is a partial cross-sectional view of a first display area provided by another embodiment;

[0060] Fig.10 is a partial cross-sectional view of a first display area provided by another embodiment;

[0061] Fig.11 is a partial top view of a display panel provided in an embodiment of the present application;

[0062] Fig.12 is a partial cross-sectional view of the second display area provided in an embodiment of the present application;

[0063] Fig.13 is a partial top view of a first display area provided by another embodiment;

[0064] Fig.14 yes Fig.13 A partial enlarged view of

[0065] Fig.15 is a partial top view of the first display area provided by another embodiment;

[0066] Fig.16 is a partial cross-sectional view of a first display area provided by another embodiment;

[0067] Fig.17 is a partial top view of the first display area provided by yet another embodiment;

[0068] Fig.18 is a partial top view of the first display area provided by another embodiment;

[0069] Fig.19 is a partial cross-sectional view of a first display area provided by another embodiment;

[0070] Fig. 20 It is a schematic flow chart of a method for preparing a display panel provided in an embodiment of the present application.

[0071] Description of reference numerals:

[0072] 10. Display panel; AA1, first display area; AA2, second display area;

[0073] 100. Substrate;

[0074] 200, isolation structure; 201, first isolation structure; 202, second isolation structure; 210, first layer; 220, second layer; 230, third layer; 240, isolation opening; 241, first isolation opening; 242, second isolation opening; 250, burr structure; 251, first burr structure; 252, second burr structure; 260, protrusion; 261, farthest end; 270, connecting portion;

[0075] 300, light-emitting layer; 310, light-emitting unit; 320, display unit;

[0076] 400, first electrode layer; 410, first electrode;

[0077] 500, pixel definition layer; 510, pixel definition portion; 520, pixel opening;

[0078] 600, a second electrode;

[0079] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0080] 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.

[0081] 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 existence of other identical elements in the process, method, article or device including the elements.

[0082] 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.

[0083] 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.

[0084] An embodiment of the present application provides a display panel, which may be an organic light emitting diode (OLED) display panel.

[0085] Please also read 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 top view of the first display area provided in an embodiment of the present application; Figure 3 yes Figure 2 A partial enlarged view of Figure 4 It is a partial cross-sectional view of the first display area provided in an embodiment of the present application.

[0086] like Figures 1 to 4 As shown, the first embodiment of the present application provides a display panel 10, and the display panel 10 includes: a substrate 100; an isolation structure 200, which is located on the substrate 100, and at least a portion of the isolation structures 200 are arranged to be spaced apart from each other, and the isolation structures 200 enclose an isolation opening 240; a light-emitting layer 300, which is located on the substrate 100, and the light-emitting layer 300 includes a light-emitting unit 310 at least partially located in the isolation opening 240; a burr structure 250, and at least a portion of the burr structure 250 is arranged around at least a portion of the isolation structure 200.

[0087] At least part of the burr structure 250 is disposed around at least part of the isolation structure 200, which means that at least part of the plurality of burr structures 250 surrounds at least part of the plurality of isolation structures 200. And one burr structure 250 surrounds an entire isolation structure 200, or one burr structure 250 surrounds part of an isolation structure 200.

[0088] Optionally, the burr structure 250 is disposed around at least a portion of the isolation structure 200 in a direction parallel to the substrate 100 .

[0089] According to the display panel 10 of the embodiment of the present application, the display panel 10 includes a substrate 100, an isolation structure 200, a light-emitting layer 300 and a burr structure 250. When preparing the light-emitting layer 300, the light-emitting layer 300 has a large drop at the edge of the isolation structure 200, which is difficult to connect, and thus 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. At least part of the isolation structure 200 is arranged at intervals, thereby forming more gaps to increase the area of ​​the light-transmitting region and improve the transmittance of the display panel 10. The burr structure 250 is arranged on the periphery of at least part of the isolation structure 200, so that the diffraction regularity of the external light when passing through the light-transmitting region is destroyed by the burr structure 250, suppressing the diffraction of the external light, and improving the photosensitivity of the region and the performance of the display panel 10.

[0090] 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.

[0091] In some optional embodiments, the burr structure 250 is disposed around the isolation structure 200 .

[0092] In these optional embodiments, a burr structure 250 surrounds an entire isolation structure 200, increasing the setting range of the burr structure 250, so that the diffraction regularity of more external light passing through the light-transmitting area is destroyed by the burr structure 250, thereby suppressing the diffraction of external light and improving the photosensitivity of the area and the performance of the display panel 10.

[0093] In some optional embodiments, the orthographic projection of the burr structure 250 on the substrate 100 is an irregular shape, for example, the orthographic projection edge of the burr structure 250 on the substrate 100 is an irregular curve or irregular sawtooth or irregular broken line.

[0094] In these optional embodiments, the irregular burr structure 250 has a better effect of suppressing the diffraction of external light, further reducing the diffraction of external light in the light-transmitting area, and improving the photosensitivity of the light-transmitting area and the performance of the display panel 10.

[0095] like Figure 3As shown, the burr structure 250 can be arranged in various ways. For example, in some optional embodiments, the burr structure 250 includes a plurality of protrusions 260, and at least some of the protrusions 260 have different shapes of the orthographic projections on the substrate 100, and / or at least some of the protrusions 260 have different sizes of the orthographic projections on the substrate 100, and / or the protrusions 260 have a farthest end 261 away from the isolation opening 240, and at least some of the farthest ends 261 of the protrusions 260 have different distances from the isolation structure 200. All of these make the orthographic projection of the burr structure 250 on the substrate 100 an irregular pattern, further reducing the diffraction of external light in the light-transmitting area, and improving the photosensitivity of the light-transmitting area and the performance of the display panel 10. Optionally, the protrusions 260 protrude from the isolation structure 200 in a direction away from the isolation opening 240, and at least some of the protrusions 260 have different protruding directions.

[0096] The farthest end 261 of the protrusion 260 refers to the end point farthest from the isolation structure 200 in the direction from the isolation opening 240 to the burr structure 250 .

[0097] Please also read Figures 4 to 10 , 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 first display area provided by another embodiment; Figure 7 is a partial cross-sectional view of a first display area provided by yet another embodiment; Figure 8 is a partial cross-sectional view of a first display area provided by another embodiment; Fig.10 is a partial cross-sectional view of a first display area provided in yet another embodiment.

[0098] like Figures 4 to 10 As shown, in some optional embodiments, the burr structure 250 is disposed at the same layer as at least a portion of the isolation structure 200 .

[0099] In these optional embodiments, the burr structure 250 is in the same layer as at least part of the film layer structure of the isolation structure 200, so that the burr structure 250 and at least part of the film layer of the isolation structure 200 can be prepared simultaneously to reduce the process and simplify the preparation process.

[0100] like Figure 4 As shown, in some optional embodiments, 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 , and the orthographic projection of the first layer 210 on the substrate 100 is located within the orthographic projection of the second layer 220 on the substrate 100 .

[0101] In these optional embodiments, the first layer 210 and the second layer 220 are stacked to form the isolation structure 200, the orthographic projection of the side of the first layer 210 disposed close to the substrate 100 away from the substrate 100 is located within the orthographic projection of the second layer 220 on the substrate 100, the orthographic projection area of ​​the second layer 220 is larger than the orthographic projection area of ​​the side of the first layer 210 away from the substrate 100, and the second layer 220 covers the surface of the first layer 210 close to the second layer 220, and at this time, the first layer 210 is recessed relative to the second layer 220 in a direction away from the second isolation opening 242 and the first isolation opening 241. 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 recessed relative to the second layer 220, so that the light-emitting layer 300 is difficult to connect at the edge of the isolation structure 200, and thus breaks, and the light-emitting layer 300 breaks to form mutually disconnected light-emitting units 310. All embodiments of the present application do not require the isolation structure 200 to be an inverted trapezoidal structure or a two-layer structure, and any structure that can achieve the isolation effect of the light-emitting layer 300 is sufficient.

[0102] like Figures 4 to 6 As shown, in some optional embodiments, the burr structure 250 is disposed in the same layer as at least one of the first layer 210 and the second layer 220 .

[0103] In these optional embodiments, the burr structure 250 and the first layer 210 are arranged in the same layer, so that the burr structure 250 and the first layer 210 can be prepared simultaneously; or, the burr structure 250 and the second layer 220 are arranged in the same layer, so that the burr structure 250 and the second layer 220 can be prepared simultaneously; or, the burr structure 250 and the first layer 210 and the second layer 220 are arranged in the same layer, so that the burr structure 250 and the first layer 210 and the second layer 220 can be prepared simultaneously, simplifying the preparation process. Therefore, the burr structure 250 can be a single-layer structure or a two-layer structure.

[0104] Optionally, the first layer 210 includes a conductive material, for example, the first layer 210 includes a non-metallic conductive material or a metallic conductive material, so as to achieve electrical connection between the isolation structure 200 and the second electrode 600 .

[0105] In some optional embodiments, the second layer 220 includes a conductive material or an insulating material, wherein the insulating material may be at least one of silicon nitride or silicon oxide.

[0106] 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.

[0107] In some optional embodiments, the first layer 210 and the second layer 220 include metal materials, and the materials of the first layer 210 and the second layer 220 are different.

[0108] 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.

[0109] See also Figure 7 , Figure 7 is a partial cross-sectional view of a first display area provided in yet another embodiment.

[0110] like Figure 7 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 .

[0111] In these optional embodiments, the waste generated by etching the first layer 210 is more likely to enter other positions of the display panel 10, thereby causing adverse effects. After the third layer 230 is provided, 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.

[0112] Optionally, the material of the second layer 220 is titanium (Ti) or molybdenum (Mo), the material of the first layer 210 is aluminum (Al), silver (Ag) or copper (Cu), and the material of the third layer 230 is titanium (Ti) or molybdenum (Mo). For example, 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).

[0113] The composition, preparation, etc. of the isolation structure 200 are described in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 099072, and C Further description is provided in N117979755A, CN117998900A, CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, and CN117500332A for reference.

[0114] like Figures 4 to 10 As shown, in some optional embodiments, the burr structure 250 is disposed in the same layer as at least one of the first layer 210 , the second layer 220 , and the third layer 230 .

[0115] In these optional embodiments, the burr structure 250 and the first layer 210 are arranged in the same layer, so that the burr structure 250 and the first layer 210 can be prepared synchronously; or, the burr structure 250 and the second layer 220 are arranged in the same layer, so that the burr structure 250 and the second layer 220 can be prepared synchronously; or, the burr structure 250 and the third layer 230 are arranged in the same layer, so that the burr structure 250 and the third layer 230 can be prepared synchronously; or, the burr structure 250 and the first layer 210 and the second layer 220 are arranged in the same layer, so that the burr structure 250 and the first layer 210 and the second layer 220 can be prepared synchronously. The burr structure 250 can be prepared synchronously; or, the burr structure 250 and the first layer 210 and the third layer 230 are arranged in the same layer, so that the burr structure 250 and the first layer 210 and the third layer 230 can be prepared synchronously; or, the burr structure 250 and the second layer 220 and the third layer 230 are arranged in the same layer, so that the burr structure 250 and the second layer 220 and the third layer 230 can be prepared synchronously; or, the burr structure 250 and the first layer 210, the second layer 220 and the third layer 230 are arranged in the same layer, so that the burr structure 250 and the first layer 210, the second layer 220 and the third layer 230 can be prepared synchronously, simplifying the preparation process. Therefore, the burr structure 250 can be a single-layer structure, a two-layer structure, or a three-layer structure.

[0116] In some optional embodiments, the burr structure 250 and the isolation structure 200 are integrally provided or separately provided.

[0117] In these optional embodiments, when the burr structure 250 and the isolation structure 200 are integrally provided, the burr structure 250 can be prepared synchronously with the isolation structure 200, reducing the manufacturing process and simplifying the manufacturing process. When the burr structure 250 and the isolation structure 200 are separately provided, the burr structure 250 and the isolation structure 200 are prepared separately, so that the controllability of the preparation of the burr structure 250 and the isolation structure 200 is improved.

[0118] Optionally, the material of the burr structure 250 includes an opaque material, which can suppress the diffraction of external light, thereby improving the photosensitivity effect of the light-transmitting area and the performance of the display panel 10 .

[0119] In some optional embodiments, the material of the burr structure 250 is the same as at least a portion of the material of the isolation structure 200 .

[0120] In these optional embodiments, the material of the burr structure 250 is the same as that of the first layer 210, or the material of the burr structure 250 is the same as that of the second layer 220, or the material of the burr structure 250 is the same as that of the third layer 230. Alternatively, the burr structure 250 is a two-layer structure, one layer is the same as that of the first layer 210, and one layer is the same as that of the second layer 220, or one layer is the same as that of the first layer 210, and one layer is the same as that of the third layer 230, or one layer is the same as that of the second layer 220, and one layer is the same as that of the third layer 230. Alternatively, the burr structure 250 is a three-layer structure, one layer is the same as that of the first layer 210, one layer is the same as that of the second layer 220, and one layer is the same as that of the third layer 230. Thus, the burr structure 250 can be prepared simultaneously with at least part of the isolation structure 200, simplifying the preparation process.

[0121] Optionally, the burr structure 250 includes multiple layers, and the orthographic projections of the multiple layers on the substrate 100 overlap, or the orthographic projections of the multiple layers on the substrate 100 are misaligned. At least two of the multiple layers have different orthographic projection shapes on the substrate 100, or at least two of the multiple layers have different orthographic projection sizes on the substrate 100.

[0122] Please also read Figures 10 to 12 , Fig.11 is a partial top view of a display panel provided in an embodiment of the present application; Fig.12 It is a partial cross-sectional view of the second display area provided in an embodiment of the present application.

[0123] like Figures 10 to 12As shown, in some optional embodiments, the display panel 10 includes a second display area AA2 and a first display area AA1, the transmittance of the second display area AA2 is less than the transmittance of the first display area AA1, the isolation structure 200 includes a second isolation structure 202 located in the second display area AA2 and a plurality of first isolation structures 201 located in the first display area AA1, the plurality of first isolation structures 201 are spaced apart from each other, the second isolation structures 202 enclose a second isolation opening 242, and the first isolation structures 201 enclose a first isolation opening 241.

[0124] In these optional embodiments, the first display area AA1 is used to set a photosensitive component, such as an under-screen camera module, and the light transmittance of the first display area AA1 is greater than the light transmittance of the second display area AA2, thereby improving the light-sensing effect of the first display area AA1. The multiple first isolation structures 201 of the first display area AA1 are arranged at intervals to form more gaps to increase the light-transmitting area of ​​the first display area AA1, thereby improving the transmittance of the first display area AA1.

[0125] Optionally, the second isolation structures 202 are continuously arranged in the second display area AA2.

[0126] Optionally, the second isolation structure 202 is enclosed in a mesh structure, that is, the second isolation structure 202 is a continuous mesh structure in the second display area AA2, and the mesh formed by the enclosed mesh is the second isolation opening 242. The first isolation structures 201 in the first display area AA1 are mutually independent and spaced structures.

[0127] In some optional embodiments, the burr structure 250 is disposed around at least a portion of the first isolation structure 201 .

[0128] In these optional embodiments, the burr structure 250 surrounds the first isolation structure 201, so that the diffraction regularity of external light when passing through the first display area AA1 is destroyed by the burr structure 250, thereby suppressing the diffraction of external light and improving the photosensitivity of the first display area AA1 and the performance of the display panel 10.

[0129] Please also read Figures 13 to 15 As shown, Fig.13 is a partial top view of a first display area provided by another embodiment; Fig.14 yes Fig.13 A partial enlarged view of Fig.15 FIG. 4 is a partial top view of the first display area provided by yet another embodiment.

[0130] like Figures 13 to 15As shown, in some optional embodiments, a first isolation structure 201 encloses a plurality of first isolation openings 241, or, within the first display area AA1, a plurality of light-emitting units 310 form a display unit 320, and the plurality of display units 320 are distributed in an array, and the plurality of light-emitting units 310 of the display unit 320 are located within the plurality of first isolation openings 241 enclosed by the same first isolation structure 201.

[0131] In these optional embodiments, one first isolation structure 201 encloses to form a first isolation opening 241 to accommodate one light-emitting unit 310. Alternatively, multiple first isolation structures 201 are arranged independently and spaced apart from each other, and one first isolation structure 201 encloses to form multiple first isolation openings 241 to accommodate multiple light-emitting units 310, thereby forming a display unit 320, and one display unit 320 and one first isolation structure 201 are arranged correspondingly. For example, one display unit 320 includes at least one red light-emitting unit 310, at least one green light-emitting unit 310, and at least one blue light-emitting unit 310. Optionally, one display unit 320 includes one red light-emitting unit 310, three green light-emitting units 310, and one blue light-emitting unit 310.

[0132] In some optional embodiments, the orthographic projection area of ​​the second isolation opening 242 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the first isolation opening 241 on the substrate 100 .

[0133] In these optional embodiments, the orthographic projection area of ​​the first isolation structure 201 on the substrate 100 is smaller, which reduces the distribution area of ​​the first isolation structure 201 in the first display area AA1 and increases the area of ​​the light-transmitting region of the first display area AA1, thereby improving the transmittance and photosensitivity of the first display area AA1.

[0134] In some optional embodiments, the ratio of the area of ​​the first isolation structure 201 on the substrate 100 to the area of ​​the first display area AA1 is a first ratio, the ratio of the sum of the areas of the second isolation structure 202 on the substrate 100 to the area of ​​the second display area AA2 is a second ratio, and the first ratio is smaller than the second ratio.

[0135] In these optional embodiments, the ratio of the area of ​​the second isolation structure 202 on the substrate 100 to the area of ​​the second display area AA2 is the metal density of the second isolation structure 202 in the second display area AA2, and the ratio of the sum of the areas of the first isolation structure 201 on the substrate 100 to the area of ​​the first display area AA1 is the metal density of the first isolation structure 201 in the first display area AA1. The first ratio is smaller than the second ratio, that is, the metal density of the second display area AA2 is greater than the metal density of the first display area AA1, and the metal density of the first display area AA1 is smaller, so that the distribution area of ​​the first isolation structure 201 in the first display area AA1 is smaller, and the area of ​​the light-transmitting region of the first display area AA1 is larger, thereby improving the transmittance and photosensitivity of the first display area AA1.

[0136] In some optional embodiments, the orthographic projection of the burr structure 250 on the substrate 100 is arranged around the orthographic projection of a first isolation opening 241 on the substrate 100 , or the orthographic projection of the burr structure 250 on the substrate 100 is arranged around the orthographic projection of the display unit on the substrate 100 .

[0137] In these optional embodiments, when the first isolation structure 201 forms one first isolation opening 241, the burr structure 250 is disposed around the first isolation structure 201, that is, around one first isolation opening 241. When the first isolation structure 201 forms multiple first isolation openings 241, the burr structure 250 is disposed around the first isolation structure 201, that is, around one display unit. No matter how many first isolation openings 241 are formed around the first isolation structure 201, the burr structure 250 is disposed around the periphery of the first isolation structure 201 to suppress the diffraction of external light in the first display area AA1.

[0138] Please also read Figures 15 to 17 , Fig.16 is a partial cross-sectional view of a first display area provided by another embodiment; Fig.17 FIG. 4 is a partial top view of the first display area provided in yet another embodiment.

[0139] like Figures 15 to 17 As shown, in some optional embodiments, the display panel 10 further includes: a connecting portion 270 , at least a portion of the connecting portion 270 is connected between two adjacent first isolation structures 201 .

[0140] In these optional embodiments, multiple isolated first isolation structures 201 are interconnected through the connecting portion 270, so that the first electrodes 410 in the first isolation openings 241 are electrically connected to each other through the connecting portion 270 to form a full-surface electrode, which facilitates providing a potential to each first electrode 410, thereby driving the light-emitting unit 310 to emit light.

[0141] In some optional embodiments, the connection portion 270 is disposed at the same layer as at least a portion of the isolation structure 200 .

[0142] In these optional embodiments, the connection portion 270 and at least a portion of the film layer structure of the isolation structure 200 are in the same layer, so that the connection portion 270 and at least a portion of the film layer of the isolation structure 200 can be prepared simultaneously to reduce the process and simplify the preparation process.

[0143] In some optional embodiments, the connection portion 270 is disposed in the same layer as at least one of the first layer 210 , the second layer 220 , and the third layer 230 .

[0144] In these optional embodiments, the connecting portion 270 and the first layer 210 are arranged in the same layer, so that the connecting portion 270 and the first layer 210 can be prepared simultaneously; or, the connecting portion 270 and the second layer 220 are arranged in the same layer, so that the connecting portion 270 and the second layer 220 can be prepared simultaneously; or, the connecting portion 270 and the third layer 230 are arranged in the same layer, so that the connecting portion 270 and the third layer 230 can be prepared simultaneously; or, the connecting portion 270 and the first layer 210 and the second layer 220 are arranged in the same layer, so that the connecting portion 270 and the first layer 210 and the second layer 220 can be prepared simultaneously; or Alternatively, the connecting portion 270 and the first layer 210 and the third layer 230 are arranged in the same layer, so that the connecting portion 270 and the first layer 210 and the third layer 230 can be prepared simultaneously; or, the connecting portion 270 and the second layer 220 and the third layer 230 are arranged in the same layer, so that the connecting portion 270 and the second layer 220 and the third layer 230 can be prepared simultaneously; or, the connecting portion 270 and the first layer 210, the second layer 220 and the third layer 230 are arranged in the same layer, so that the connecting portion 270 and the first layer 210, the second layer 220 and the third layer 230 can be prepared simultaneously, simplifying the preparation process. Therefore, the connecting portion 270 can be a single-layer structure, a two-layer structure, or a three-layer structure.

[0145] Optionally, the isolation structure 200 , the burr structure 250 and the connection portion 270 are arranged in the same layer, so that the isolation structure 200 , the burr structure 250 and the connection portion 270 can be manufactured simultaneously, thereby reducing the manufacturing process.

[0146] Optionally, the burr structure 250 includes a conductive material, so that the isolation structure 200 is electrically connected to the connection portion 270 through the burr structure 250 , thereby achieving electrical conduction between adjacent isolation structures 200 .

[0147] See also Fig.18 and Fig.19 , Fig.18 is a partial top view of the first display area provided by another embodiment; Fig.19 is a partial cross-sectional view of a first display area provided in yet another embodiment.

[0148] like Fig.18 and Fig.19 As shown, in some optional embodiments, the burr structure 250 includes a first burr structure 251 and a second burr structure 252, the first burr structure 251 is arranged around at least a portion of the isolation structure 200, and the second burr structure 252 is arranged on at least one side of the connecting portion 270 in a direction parallel to the substrate 100.

[0149] In these optional embodiments, the first burr structure 251 is arranged around at least part of the isolation structure 200, so that when external light passes around the isolation structure 200, the first burr structure 251 on the side of the isolation structure 200 can suppress the diffraction of external light around the isolation structure 200. The second burr structure 252 is arranged on at least one side of the connection portion 270, so that when external light passes around the connection portion 270, the second burr structure 252 on the side of the connection portion 270 can suppress the diffraction of external light around the connection portion 270. The burr structure 250 is arranged on both the isolation structure 200 and the connection portion 270 to increase the distribution area of ​​the burr structure 250, so that the diffraction of more external light can be suppressed, thereby improving the photosensitivity effect of the first display area AA1.

[0150] like Figures 15 to 17 As shown, in some optional embodiments, the plurality of first isolation structures 201 are distributed in an array along the first direction X and / or the second direction Y, and the first direction X and the second direction Y intersect.

[0151] Optionally, the connecting portion 270 extends along the first direction X and / or the second direction Y.

[0152] In these optional embodiments, the connection portion 270 extends along the first direction X, or the connection portion 270 extends along the second direction Y, or the connection portion 270 extends along the first direction X and the second direction Y. The connection portion 270 extends along the same direction, that is, two first isolation structures 201 adjacent to each other in the same direction are connected to each other through the connection portion 270, so that multiple isolated first isolation structures 201 are electrically connected to each other, which is convenient for providing potential to multiple first electrodes 410 of the first display area AA1. And the connection portion 270 is only provided between two first isolation structures 201 adjacent to each other in the same direction, which can reduce the number of the connection portions 270, increase the light-transmitting area of ​​the first display area AA1, and enhance the light-sensing effect of the first display area AA1.

[0153] Optionally, all the connecting portions 270 extend along the first direction X.

[0154] Optionally, all the connecting portions 270 extend along the second direction Y.

[0155] Optionally, the orthographic projection of the connection portion 270 on the substrate 100 includes a straight line segment and / or a curved line segment, and the orthographic projection of the connection portion 270 on the substrate 100 is a straight line with a regular shape, which facilitates the preparation of the connection portion 270. The orthographic projection of the connection portion 270 on the substrate 100 is a curve, and the curved connection portion 270 is irregular compared to the straight line, which can reduce the diffraction of light caused by the connection portion 270 and improve the photosensitivity of the first display area AA1. For example, the orthographic projection of the connection portion 270 on the substrate 100 is an S-shaped or serpentine curve, which can destroy the regularity of the connection portion 270, reduce the diffraction of light caused by the connection portion 270, and improve the photosensitivity of the first display area AA1.

[0156] Optionally, the orthographic projection of the connection portion 270 on the substrate 100 includes an irregular curve segment. An irregular curve refers to a curve that cannot be repeatedly obtained through a certain curve segment. The irregular curve connection portion 270 can further destroy the diffraction of light, thereby improving the photosensitivity effect of the first display area AA1.

[0157] Optionally, the orthographic projection of the connecting portion 270 on the substrate 100 includes a combination of a curved segment and a straight line segment.

[0158] In some optional embodiments, there are at least two connecting portions 270 , and the shapes of the two connecting portions 270 are different or the same.

[0159] Optionally, the two connecting portions 270 extend in different directions.

[0160] In these optional embodiments, at least two of the connecting portions 270 have different shapes, which reduces the uniformity of the distribution of the connecting portions 270, further destroys the diffraction caused by the connecting portions 270, and improves the photosensitive effect of the first display area AA1. For example, the orthographic projection shape of some of the connecting portions 270 on the substrate 100 is a straight line, and the orthographic projection shape of some of the connecting portions 270 on the substrate 100 is a curve, or at least two of the connecting portions 270 have different curved shapes. At least two of the connecting portions 270 have different extension directions, and multiple connecting portions 270 extend along multiple different directions to avoid the connecting portions 270 being uniformly distributed in a certain direction, further reduce the uniformity of the distribution of the connecting portions 270, destroy the diffraction caused by the connecting portions 270, and improve the photosensitive effect of the first display area AA1. For example, when the shapes of the two connecting portions 270 are different, the extension directions of the two connecting portions 270 can be the same or different; when the extension directions of the three connecting portions 270 are different, the shapes of the three connecting portions 270 can be the same or different. Optionally, the two connection portions 270 have different shapes and extension directions, which further reduces the distribution uniformity of the connection portions 270 , destroys the diffraction of light caused by the connection portions 270 , and improves the photosensitivity effect of the first display area AA1 .

[0161] like Fig.16As shown, in some optional embodiments, the display panel 10 also includes: 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, at least part of the first electrode 410 is located in the isolation opening 240, and the first electrode 410 is electrically connected to the isolation structure 200.

[0162] In these optional embodiments, a plurality of first electrodes 410 are interconnected through the isolation structure 200 to form a whole-surface electrode, which serves as an electrode of the light-emitting unit 310 to drive the light-emitting unit 310 to emit light.

[0163] 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 .

[0164] 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.

[0165] 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.

[0166] 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 .

[0167] 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.

[0168] 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 .

[0169] 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 light-emitting layer 300, due to the large height difference, the light-emitting layer 300 is more easily disconnected at the isolation structure 200, thereby reducing the difficulty of preparing the light-emitting unit 310.

[0170] In some optional embodiments, the display panel 10 further includes: a second electrode 600 located between the substrate 100 and the light emitting unit 310 , and the second electrode 600 is exposed by the pixel opening 520 .

[0171] In these optional embodiments, the second electrode 600 serves as an electrode of the light-emitting unit 310 to ensure the light emission of the light-emitting unit 310. One of the first electrode 410 and the second electrode 600 serves as an anode of the light-emitting unit 310, and the other serves as a cathode of the light-emitting unit 310. The embodiment of the present application takes the first electrode 410 as the cathode of the light-emitting unit 310 and the second electrode 600 as the anode of the light-emitting unit 310 as an example.

[0172] 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).

[0173] like Figures 1 to 17 As shown, the second aspect of the present application provides a display panel 10, the display panel 10 includes a second display area AA2 and a first display area AA1, the transmittance of the second display area AA2 is less than the transmittance of the first display area AA1, and the display panel 10 also includes: a substrate 100; an isolation structure 200, located on the substrate 100, the isolation structure 200 includes a second isolation structure 202 located in the second display area AA2 and a plurality of first isolation structures 201 located in the first display area AA1, the plurality of first isolation structures 201 are arranged at intervals from each other, the second isolation structures 202 enclose a second isolation opening 242, and the first isolation structures 201 enclose a first isolation opening 241; a light-emitting layer 300, located on the substrate 100, the light-emitting layer 300 includes a light-emitting unit 310 at least partially located in the first isolation opening 241 and the second isolation opening 242; a burr structure 250, at least a portion of the burr structure 250 is arranged around at least a portion of the first isolation structure 201, and the orthographic projection of the burr structure 250 on the substrate 100 is an irregular shape.

[0174] According to the display panel 10 of the embodiment of the present application, the display panel 10 includes a substrate 100, an isolation structure 200, a light-emitting layer 300 and a burr structure 250. When preparing the light-emitting layer 300, the light-emitting layer 300 has a large drop at the edge of the isolation structure 200, which is difficult to connect, and thus 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. At least part of the isolation structure 200 is arranged at intervals, thereby forming more gaps to increase the area of ​​the light-transmitting region and improve the transmittance of the display panel 10. The burr structure 250 surrounds the first isolation structure 201, so that the diffraction regularity of the external light when passing through the first display area AA1 is destroyed by the burr structure 250, suppressing the diffraction of the external light, and improving the photosensitivity of the first display area AA1 and the performance of the display panel 10. The irregular burr structure 250 has a better effect of suppressing the diffraction of external light, further reducing the diffraction of external light in the first display area AA1, and improving the photosensitivity of the first display area AA1 and the performance of the display panel 10.

[0175] 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.

[0176] The embodiment of the third 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.

[0177] 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.

[0178] See also Figures 1 to 20 , Fig. 20 It is a schematic flow chart of a method for preparing a display panel provided in an embodiment of the present application.

[0179] The fourth 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 in any of the above embodiments. Fig. 20 As shown, the preparation method comprises:

[0180] Step S01: preparing isolation structures and burr structures on a substrate, wherein at least part of the isolation structures are spaced apart from each other, the isolation structures enclose isolation openings, and at least part of the burr structures are arranged around at least part of the isolation structures.

[0181] Step S02: preparing a light-emitting layer on a substrate, wherein the light-emitting layer includes light-emitting units at least partially located in the isolation openings.

[0182] According to the preparation method of the fourth embodiment of the present application, the isolation structure 200 and the burr structure 250 are prepared by step S01, and the isolation structure 200 and the burr structure 250 are prepared simultaneously to simplify the preparation process. The light-emitting layer 300 is prepared by step S02. When preparing the light-emitting layer 300, the light-emitting layer 300 has a large drop at the edge of the isolation structure 200, which is difficult to connect, and thus 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 and improving the display effect of the display panel 10. In addition, the light-emitting unit 310 can be prepared without the use of a precision mask plate, which can reduce the development and use of precision masks and reduce the preparation cost. At least part of the isolation structure 200 is arranged at intervals to form more gaps to increase the area of ​​the light-transmitting region and improve the transmittance of the display panel 10. A burr structure 250 is provided around at least part of the isolation structure 200 so that the diffraction regularity of external light passing through the light-transmitting area is destroyed by the burr structure 250, thereby suppressing the diffraction of external light and improving the photosensitivity of the area and the performance of the display panel 10.

[0183] 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 comprises: substrate; An isolation structure is located on the substrate, at least some of the isolation structures are spaced apart from each other, and the isolation structures enclose an isolation opening; A light-emitting layer, located on the substrate, the light-emitting layer comprising a light-emitting unit at least partially located in the isolation opening; The burr structure is configured so as to surround at least a portion of the isolation structure.

2. The display panel according to claim 1, characterized in that: The burr structure is disposed around the isolation structure.

3. The display panel according to claim 1, characterized in that: The orthographic projection of the burr structure on the substrate is an irregular shape; Preferably, the burr structure includes a plurality of protrusions, at least some of the protrusions have different shapes of their orthographic projections on the substrate, and / or at least some of the protrusions have different sizes of their orthographic projections on the substrate, and / or the protrusions have a farthest end away from the isolation opening, and at least some of the farthest ends of the protrusions have different distances from the isolation structure.

4. The display panel according to claim 1, characterized in that: The burr structure is disposed at the same layer as at least a portion of the isolation structure.

5. The display panel according to claim 4, characterized in that: The isolation structure comprises a first layer and a second layer located on a side of the first layer 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; Preferably, the burr structure is provided in the same layer as at least one of the first layer and the second layer; Preferably, the first layer comprises a conductive material; Preferably, the second layer comprises a conductive material or an insulating material; Preferably, both the first layer and the second layer include metal materials, and the materials of the first layer and the second layer are different.

6. The display panel according to claim 5, characterized in that: The isolation structure further includes a third layer located on a side of the first layer facing the substrate, and an orthographic projection of the first layer on the substrate is located within an orthographic projection of the third layer on the substrate; Preferably, the burr structure is arranged in the same layer as at least one of the first layer, the second layer and the third layer.

7. The display panel according to claim 1, characterized in that: The burr structure and the isolation structure are integrally or separately arranged; Preferably, the material of the burr structure includes an opaque material; Preferably, the material of the burr structure is the same as at least part of the material of the isolation structure.

8. The display panel according to claim 1, characterized in that: The display panel includes a second display area and a first display area, the light transmittance of the second display area is lower than the light transmittance of the first display area, the isolation structure includes a second isolation structure located in the second display area and a plurality of first isolation structures located in the first display area, the plurality of first isolation structures are arranged at intervals from each other, the second isolation structures enclose a second isolation opening, and the first isolation structures enclose a first isolation opening; Preferably, the burr structure is arranged around at least a portion of the first isolation structure; Preferably, the second isolation structure is continuously arranged in the second display area; Preferably, the second isolation structure is enclosed in a mesh structure.

9. The display panel according to claim 8, characterized in that: One first isolation structure encloses a plurality of first isolation openings, or, in the first display area, a plurality of the light-emitting units form a display unit, the plurality of the display units are arranged in an array, and the plurality of the light-emitting units of the display unit are located in the plurality of the first isolation openings enclosed by the same first isolation structure; Preferably, the orthographic projection area of ​​the second isolation opening on the substrate is greater than or equal to the orthographic projection area of ​​the first isolation opening on the substrate; Preferably, the ratio of the area of ​​the first isolation structure on the substrate to the area of ​​the first display area is a first ratio, the ratio of the sum of the areas of the second isolation structure on the substrate to the area of ​​the second display area is a second ratio, and the first ratio is smaller than the second ratio.

10. The display panel according to claim 9, characterized in that: The orthographic projection of the burr structure on the substrate is arranged around the orthographic projection of one of the first isolation openings on the substrate, or the orthographic projection of the burr structure on the substrate is arranged around the orthographic projection of the display unit on the substrate.

11. The display panel according to claim 8, characterized in that: The display panel further includes: A connecting portion, at least a portion of which is connected between two adjacent first isolation structures; Preferably, the connecting portion is arranged at the same layer as at least a portion of the isolation structure.

12. The display panel according to claim 11, characterized in that: The burr structure includes a first burr structure and a second burr structure. The first burr structure is arranged around at least a portion of the isolation structure, and the second burr structure is arranged on at least one side of the connection portion in a direction parallel to the substrate.

13. The display panel according to claim 11, characterized in that: A plurality of first isolation structures are distributed in an array along a first direction and / or a second direction, and the first direction and the second direction intersect; Preferably, the connecting portion extends along the first direction and / or the second direction; Preferably, all the connecting portions extend along the first direction; Preferably, all the connecting portions extend along the second direction.

14. The display panel according to claim 11, characterized in that: The orthographic projection of the connecting portion on the substrate includes a straight line segment and / or a curved line segment.

15. The display panel according to claim 11, characterized in that: The orthographic projection of the connecting portion on the substrate includes an irregular curve segment.

16. The display panel according to claim 11, characterized in that: There are at least two connecting parts, and the shapes of the two connecting parts are different or the same; Preferably, the extending directions of the two connecting parts are different or the same.

17. 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, the first electrode layer comprising a plurality of first electrodes, at least a portion of the first electrodes being located in the isolation opening, and the first electrodes being 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; Preferably, 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 being connected to the isolation opening; Preferably, the isolation structure is located on a side of the pixel defining portion away from the substrate; Preferably, the display panel further includes: The second electrode is located between the substrate and the light-emitting unit, and the second electrode is exposed from the pixel opening.

18. A display panel, characterized in that: The display panel includes a second display area and a first display area, the light transmittance of the second display area is less than the light transmittance of the first display area, and the display panel further includes: substrate; an isolation structure located on the substrate, the isolation structure comprising a second isolation structure located in the second display area and a plurality of first isolation structures located in the first display area, the plurality of first isolation structures being arranged at intervals from each other, the second isolation structures enclosing a second isolation opening, and the first isolation structures enclosing a first isolation opening; a light-emitting layer, located on the substrate, the light-emitting layer comprising light-emitting units at least partially located in the first isolation opening and the second isolation opening; A burr structure, at least a portion of which is disposed around at least a portion of the first isolation structure, and the orthographic projection of the burr structure on the substrate is an irregular shape.

19. A display device, characterized in that: A display panel comprising any one of claims 1-18.

20. A method for preparing a display panel, characterized in that: The method comprises: Preparing isolation structures and burr structures on the substrate, wherein at least some of the isolation structures are arranged at intervals from each other, the isolation structures are enclosed to form isolation openings, and at least some of the burr structures are arranged around at least some of the isolation structures; A light-emitting layer is prepared on the substrate, wherein the light-emitting layer includes a light-emitting unit at least partially located in the isolation opening.

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