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 is provided with a first display area and a second display area, the first display area is arranged around at least part of the second display area, light can penetrate through the second display area to reach a photosensitive assembly, and the photosensitive effect of the display panel is improved. The display panel further comprises a substrate, an isolation structure and a light-emitting layer. The isolation structure comprises a first layer and a second layer, and the first layer and the second layer are stacked to form the isolation structure. When the light-emitting layer is prepared, the light-emitting layer is difficult to connect at the edge of the isolation structure and fractures to form mutually disconnected light-emitting units. The ratio of the extension distance of the peripheral sides of at least part of the light-emitting units in the first display area to the extension distance of the peripheral sides of the light-emitting units in the second display area is 90%-110%, so that the lap joint areas of the first electrodes and the isolation structures at two positions with the same extension distance are close, and the brightness uniformity of the first display area and the second display area is improved. Therefore, the use performance of an OLED display product 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 OLED display products.

[0005] A first aspect of the present application provides a display panel, a display panel having a first display area and a second display area, the first display area being adjacent to the second display area, the display panel further comprising: a substrate; an isolation structure located on one side of the substrate, the isolation structure enclosing an isolation opening; a light-emitting layer located on one side of the substrate, the light-emitting layer comprising a light-emitting unit located at the isolation opening; 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 being within the orthographic projection of the second layer on the substrate; wherein the distance between the edge of the orthographic projection of the first layer on the substrate and the edge of the orthographic projection of the second layer on the substrate is an extension distance, and the ratio of the extension distance of at least part of the peripheral side of the light-emitting unit in the first display area to the extension distance of the peripheral side of the light-emitting unit in the second display area is 90% to 110%.

[0006] According to an implementation of the first aspect of the present application, an extension distance of at least part of the circumference of the light emitting unit in the first display area is equal to an extension distance of the circumference of the light emitting unit in the second display area.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, the light-emitting unit includes a first light-emitting unit, and in the first display area, the extension distance of the circumference of the first light-emitting unit is a first extension distance, and in the second display area, the extension distance of the circumference of the first light-emitting unit is a second extension distance, and the first extension distance is equal to the second extension distance.

[0008] According to any of the foregoing embodiments of the first aspect of the present application, the light-emitting unit includes a second light-emitting unit of a color different from that of the first light-emitting unit, and in the first display area, the extension distance of the circumference of the second light-emitting unit is a third extension distance, and in the second display area, the extension distance of the circumference of the second light-emitting unit is a fourth extension distance, and the third extension distance is equal to the fourth extension distance.

[0009] According to any of the foregoing embodiments of the first aspect of the present application, the light-emitting unit includes a third light-emitting unit having a color different from that of the first light-emitting unit and the second light-emitting unit. In the first display area, the extension distance of the circumference of the third light-emitting unit is a fifth extension distance. In the second display area, the extension distance of the circumference of the third light-emitting unit is a sixth extension distance. The fifth extension distance is equal to the sixth extension distance.

[0010] 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 second isolation structure located in the second display area, the first isolation structure encloses a partial isolation opening and a first light-transmitting opening, and the second isolation structure encloses a partial isolation opening and a second light-transmitting opening.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection area of ​​the first light-transmitting opening on the substrate is a first area, the orthographic projection area of ​​the second light-transmitting opening on the substrate is a fourth area, the ratio of the first area to the area of ​​the first display area is a first ratio, the ratio of the fourth area to the area of ​​the second display area is a second ratio, and the first ratio is equal to the second ratio.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, an orthographic projection area of ​​at least one of the plurality of first light-transmitting openings on the substrate is equal to an orthographic projection area of ​​at least one of the plurality of second light-transmitting openings on the substrate.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, the number of first light-transmitting openings within a unit area of ​​the first display region is equal to the number of second light-transmitting openings within a unit area of ​​the second display region.

[0014] 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 first electrode located in the isolation opening, and the first electrode is electrically connected to the isolation structure.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection of the first electrode on the substrate.

[0016] 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.

[0017] According to any of the aforementioned implementations of the first aspect of the present application, the first electrode layer further includes a redundant electrode located in the first light-transmitting opening.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the redundant electrode is electrically connected to the isolation structure.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, the light-emitting layer further includes a redundant unit located in the first light-transmitting opening, and the redundant electrode covers the redundant unit.

[0020] According to any of the aforementioned embodiments of the first aspect of the present application, a packaging unit is disposed in the first light-transmitting opening, and the packaging unit is located on a side of the redundant electrode facing away from the substrate.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, it also includes: a first encapsulation layer, located on the side of the light-emitting layer away from the substrate, and the first encapsulation layer includes an encapsulation portion located in the isolation opening.

[0022] According to any of the aforementioned embodiments of the first aspect of the present application, the first packaging layer further includes a packaging unit located in the first light-transmitting opening, the packaging unit is located on a side of the redundant electrode facing away from the substrate, and the packaging unit is spaced apart from the packaging portion.

[0023] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the first encapsulation layer includes an inorganic material.

[0024] According to any of the aforementioned implementations of the first aspect of the present application, the display panel further includes: a second encapsulation layer located on a side of the first encapsulation layer away from the substrate; and a third encapsulation layer located on a side of the second encapsulation layer away from the substrate.

[0025] According to any of the aforementioned implementations of the first aspect of the present application, a portion of the second encapsulation layer is filled in the second light-transmitting opening.

[0026] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the second encapsulation layer includes an organic material.

[0027] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the third encapsulation layer includes an inorganic material.

[0028] According to any of the aforementioned embodiments of the first aspect of the present application, the first layer includes a conductive material.

[0029] 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.

[0030] 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.

[0031] 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.

[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 embodiments of the first aspect of the present application, the display panel further includes a second electrode located between the substrate and the pixel definition layer, and the second electrode is exposed by the pixel opening.

[0034] According to any of the aforementioned embodiments of the first aspect of the present application, the pixel definition layer is exposed by the first light-transmitting opening and the second light-transmitting opening.

[0035] According to any of the aforementioned embodiments of the first aspect of the present application, in the first light-transmitting opening, the pixel definition layer is in contact with the redundant electrode, and in the second light-transmitting opening, the pixel definition layer is in contact with the second encapsulation layer.

[0036] A second aspect of the present application provides a display panel, which has a first display area and a second display area, wherein the first display area is adjacent to the second display area, and the display panel further comprises: a substrate; an isolation structure located on one side of the substrate, the isolation structure enclosing an isolation opening; a light-emitting layer located on one side of the substrate, the light-emitting layer comprising a light-emitting unit located at the isolation opening; the isolation structure comprises a first isolation structure located in the first display area and a second isolation structure located in the second display area, the first isolation structure enclosing a partial isolation opening and a first light-transmitting opening, and the second isolation structure enclosing a partial isolation opening and a second light-transmitting opening; wherein an orthographic projection area of ​​the first light-transmitting opening on the substrate is a first area, an orthographic projection area of ​​the second light-transmitting opening on the substrate is a fourth area, a ratio of the first area to an area of ​​the first display area is a first ratio, a ratio of the fourth area to an area of ​​the second display area is a second ratio, and the first ratio is equal to the second ratio.

[0037] According to an implementation scheme of the second aspect of the present application, the isolation structure includes a first layer and a second layer located on the side of the first layer facing 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, the distance between the edge of the orthographic projection of the first layer on the substrate and the edge of the orthographic projection of the second layer on the substrate is the extension distance, and in the first display area and the second display area, the extension distances of the circumferential sides of the light-emitting units of the same color are the same.

[0038] According to any of the aforementioned embodiments of the second 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 first electrode located in the isolation opening, and the first electrode is electrically connected to the isolation structure.

[0039] According to any of the aforementioned embodiments of the second aspect of the present application, the orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection of the first electrode on the substrate.

[0040] According to any of the aforementioned embodiments of the second aspect of the present application, the light-emitting unit and the isolation structure are spaced apart.

[0041] According to any of the aforementioned implementations of the second aspect of the present application, the first electrode layer further includes a redundant electrode located in the first light-transmitting opening.

[0042] According to any of the aforementioned embodiments of the second aspect of the present application, the redundant electrode is electrically connected to the isolation structure.

[0043] According to any of the aforementioned embodiments of the second aspect of the present application, the light-emitting layer further includes a redundant unit located in the first light-transmitting opening.

[0044] According to any of the aforementioned implementations of the second aspect of the present application, a packaging unit is disposed in the first light-transmitting opening, and the packaging unit is located on a side of the redundant electrode facing away from the substrate.

[0045] According to any of the aforementioned embodiments of the second aspect of the present application, no redundant electrodes and no redundant units are provided in the second light-transmitting opening.

[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] According to a fourth aspect of the present application, a display panel includes a first display area and a second display area, the first display area and the second display area are arranged adjacent to each other, and a method includes:

[0048] An isolation structure is prepared on the substrate, the isolation structure encloses an isolation opening, a first layer and a second layer located on a side of the first layer facing away from the substrate, and an orthographic projection of the first layer on the substrate is located within an orthographic projection of the second layer on the substrate;

[0049] A light-emitting layer is prepared on a substrate, the light-emitting layer includes a light-emitting unit located in an isolation opening; the distance between the orthographic projection edge of the first layer on the substrate and the orthographic projection edge of the second layer on the substrate is an extension distance, and the ratio of the extension distance of at least part of the circumference of the light-emitting unit in the first display area to the extension distance of the circumference of the light-emitting unit in the second display area is 90% to 110%.

[0050] According to an implementation of the fourth aspect of the present application, the isolation opening includes a first isolation opening, a second isolation opening, and a third isolation opening, and the isolation structure further encloses a first light-transmitting opening located in the first display area and a second light-transmitting opening located in the second display area. After the step of preparing the isolation structure on the substrate, the method further includes:

[0051] Preparing a first electrode material layer and a first packaging material layer on the substrate, and patterning the first electrode material layer and the first packaging material layer to form a first electrode unit and a first packaging portion located in the first isolation opening;

[0052] Prepare a second electrode material layer and a second packaging material layer on a side of the first packaging portion facing away from the substrate, and pattern the second electrode material layer and the second packaging material layer to form a second electrode unit and a second packaging portion located at the second isolation opening;

[0053] A third electrode material layer and a third packaging material layer are prepared on the side of the second packaging part facing away from the substrate, and the third electrode material layer and the third packaging material layer are patterned to form a third electrode unit and a third packaging part located at the third isolation opening, and a redundant electrode and packaging unit located at the first light-transmitting opening.

[0054] According to the display panel of the embodiment of the present application, the display panel has a first display area and a second display area, the first display area is arranged around at least part of the second display area, and light can reach the photosensitive component through the second display area, thereby improving the photosensitivity of the display panel. The display panel also includes a substrate, an isolation structure and a light-emitting layer. The isolation structure includes a first layer and a second layer located on the side of the first layer away from the substrate, the first layer and the second layer are stacked 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 larger 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, thereby breaking, 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 preparation of 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. The extension distance of the circumference of at least part of the light-emitting units in the first display area is 90% to 110% of the extension distance of the circumference of the light-emitting units in the second display area, so that the extension distance of the circumference of at least part of the light-emitting units in the first display area is close to the extension distance of the circumference of the light-emitting units in the second display area, the overlapping areas of the first electrodes and the isolation structure at two positions with similar extension distances are similar, and the overlapping resistances of at least part of the first electrodes and the isolation structure in the first display area and the second display area are similar, thereby avoiding the problem that the large difference in the overlapping resistances of at least part of the first electrodes and the isolation structure in the first display area and the second display area caused by the large difference in the extension distance of the circumference of at least part of the light-emitting units in the first display area and the extension distance of the circumference of the light-emitting units in the second display area, thereby improving the brightness uniformity of the first display area and the second display area, thereby improving the performance of the OLED display product. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] 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.

[0056] Figure 1 is a schematic top view of a display panel provided in an embodiment of the present application;

[0057] Figure 2 is a partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0058] Figure 3 is a partial cross-sectional view of a first display area of ​​a display panel provided in an embodiment of the present application;

[0059] Figure 4 is a partial cross-sectional view of a second display area of ​​a display panel provided in an embodiment of the present application;

[0060] Figure 5 is a partial cross-sectional view of a first display area of ​​a display panel in another embodiment;

[0061] Figure 6 is a partial cross-sectional view of a second display area of ​​a display panel in another embodiment;

[0062] Figure 7 is a partial cross-sectional view of a first display area of ​​a display panel in another embodiment;

[0063] Figure 8 is a partial cross-sectional view of a first display area of ​​a display panel in yet another embodiment;

[0064] Fig. 9 is a partial cross-sectional view of a display panel in another embodiment;

[0065] Fig.10 is a partial cross-sectional view of a second display area of ​​a display panel in another embodiment;

[0066] Fig.11 It is a schematic flow chart of a method for preparing a display panel provided in an embodiment of the present application.

[0067] Description of reference numerals:

[0068] 10. Display panel; AA1, first display area; AA2, second display area;

[0069] 100. Substrate;

[0070] 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; 243, third isolation opening; 250, first light-transmitting opening; 260, second light-transmitting opening;

[0071] 300, light-emitting layer; 310, light-emitting unit; 311, first light-emitting unit; 312, second light-emitting unit; 313, third light-emitting unit; 320, redundant unit;

[0072] 400, first electrode layer; 410, first electrode; 420, redundant electrode;

[0073] 500, first encapsulation layer; 510, encapsulation part; 520, encapsulation unit; 530, second encapsulation layer; 540, third encapsulation layer;

[0074] 600, pixel definition layer; 610, pixel definition portion; 620, pixel opening; 630, second electrode;

[0075] D, extension distance; D1, first extension distance; D2, second extension distance; D3, third extension distance; D4, fourth extension distance; D5, fifth extension distance; D6, sixth extension distance. DETAILED DESCRIPTION

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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 and the display device will be described below in conjunction with the accompanying drawings.

[0080] An embodiment of the present application provides a display panel, which may be an organic light emitting diode (OLED) display panel.

[0081] See also Figure 1 and Figure 2 , Figure 1 is a schematic top view of a display panel provided in an embodiment of the present application; Figure 2 It is a partial cross-sectional view of a display panel provided in an embodiment of the present application.

[0082] like Figure 1 and Figure 2As shown, the first embodiment of the present application provides a display panel 10, a display panel 10, the display panel 10 has a first display area AA1 and a second display area AA2, the first display area AA1 is adjacent to the second display area AA2, and the display panel 10 further includes: a substrate 100; an isolation structure 200, located on one side of the substrate 100, the isolation structure 200 encloses to form an isolation opening 240; a light-emitting layer 300, located on one side of the substrate 100, the light-emitting layer 300 includes a light-emitting unit 310 located in the isolation opening 240; the isolation structure 200 includes The first layer 210 and the second layer 220 located on the 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 within the orthographic projection of the second layer 220 on the substrate 100; wherein, the distance between the edge of the orthographic projection of the first layer 210 on the substrate 100 and the edge of the orthographic projection of the second layer 220 on the substrate 100 is the extension distance D, and the ratio of the extension distance D of the peripheral side of at least part of the light-emitting unit 310 in the first display area AA1 to the extension distance D of the peripheral side of the light-emitting unit 310 in the second display area AA2 is 90% to 110%.

[0083] According to the display panel 10 of the embodiment of the present application, the display panel 10 has a first display area AA1 and a second display area AA2, the first display area AA1 is arranged adjacent to the second display area AA2, and light can reach the photosensitive component through the second display area AA2, thereby improving the photosensitive effect of the display panel 10. The display panel 10 also includes a substrate 100, an isolation structure 200, and a light-emitting layer 300. 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 first layer 210 and the second layer 220 are stacked to form the 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 larger than the area of ​​the first layer 210, 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 isolation opening 240. When preparing the light-emitting layer 300, a large step is generated at the edge of the isolation structure 200 of the light-emitting layer 300, 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, and thus breaks. The light-emitting layer 300 breaks to form light-emitting units 310 that are disconnected from each other, thereby reducing 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 using a precision mask plate, which can reduce the development and use of precision masks and reduce preparation costs. The ratio of the circumferential extension distance D of at least part of the light-emitting unit 310 in the first display area AA1 to the circumferential extension distance D of the light-emitting unit 310 in the second display area AA2 is 90% to 110%, so that the circumferential extension distance D of at least part of the light-emitting unit 310 in the first display area AA1 is close to the circumferential extension distance D of the light-emitting unit 310 in the second display area AA2, the overlapping areas of the first electrode 410 and the isolation structure 200 at two positions with similar extension distances D are similar, and the overlapping resistance of at least part of the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2 is similar, thereby avoiding the problem that the circumferential extension distance D of at least part of the light-emitting unit 310 in the first display area AA1 and the circumferential extension distance D of the light-emitting unit 310 in the second display area AA2 is greatly different, thereby improving the brightness uniformity of the first display area AA1 and the second display area AA2, thereby improving the performance of the OLED display product.

[0084] 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.

[0085] Among them, Patent 202311317611.4, Patent 202310855006.6, Patent 202310854718.6 and Patent 202311134638.X record the relevant technical solutions of the isolation structure 200, and their contents are incorporated into this application by reference for reference and will not be repeated in this embodiment.

[0086] In some optional embodiments, the extension distance D of at least part of the circumference of the light emitting unit 310 in the first display area AA1 is equal to the extension distance D of the circumference of the light emitting unit 310 in the second display area AA2.

[0087] In these optional embodiments, the circumferential extension distance D of at least part of the light-emitting unit 310 in the first display area AA1 is equal to the circumferential extension distance D of the light-emitting unit 310 in the second display area AA2, so that the overlapping areas between the first electrode 410 and the isolation structure 200 at two positions with equal extension distances D are equal, and the overlapping resistances between at least part of the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2 are equal, thereby improving the brightness uniformity of the first display area AA1 and the second display area AA2, thereby improving the performance of the OLED display product.

[0088] In some optional embodiments, in the first display area AA1 and the second display area AA2, the extension distance D of the circumference of the light emitting units 310 with the same color is the same.

[0089] In these optional embodiments, the isolation structure 200 on the peripheral side of the light-emitting units 310 of the first display area AA1 and the light-emitting units 310 of the same color in the second display area AA2 has the same extension distance D, so that the overlapping areas of the first electrode 410 in the isolation opening 240 where the light-emitting units 310 of the first display area AA1 and the second display area AA2 are located are equal, that is, the overlapping resistances are equal, thereby improving the brightness uniformity of the first display area AA1 and the second display area AA2, thereby improving the performance of the OLED display product.

[0090] Please also read Figure 3 and Figure 4 , Figure 3 is a partial cross-sectional view of a first display area of ​​a display panel provided in an embodiment of the present application; Figure 4 It is a partial cross-sectional view of a second display area of ​​a display panel provided in an embodiment of the present application.

[0091] like Figure 3 and Figure 4As 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 D around the first light-emitting unit 311 is a first extension distance D1. In the second display area AA2, the extension distance D around the first light-emitting unit 311 is a second extension distance D2. The first extension distance D1 is equal to the second extension distance D2.

[0092] In these optional embodiments, the first extension distance D1 is equal to the second extension distance D2, that is, the isolation structure 200 on the peripheral side of the first light-emitting unit 311 of the first display area AA1 and the first light-emitting unit 311 of the second display area AA2 has the same extension distance D, so that the overlapping areas of the first electrode 410 in the isolation opening 240 where the first light-emitting units 311 of the first display area AA1 and the second display area AA2 are located are equal to the overlapping areas of the isolation structure 200, that is, the overlapping resistances are equal, thereby improving the brightness uniformity of the first display area AA1 and the second display area AA2, thereby improving the performance of the OLED display product.

[0093] like Figure 3 and Figure 4 As shown, in some optional embodiments, the light-emitting unit 310 includes a second light-emitting unit 312 having a color different from that of the first light-emitting unit 311, and in the first display area AA1, an extension distance D around the second light-emitting unit 312 is a third extension distance D3, and in the second display area AA2, an extension distance D around the second light-emitting unit 312 is a fourth extension distance D4, and the third extension distance D3 is equal to the fourth extension distance D4.

[0094] In these optional embodiments, the third extension distance D3 is equal to the fourth extension distance D4, that is, the isolation structure 200 on the peripheral side of the second light-emitting unit 312 of the first display area AA1 and the second light-emitting unit 312 of the second display area AA2 has the same extension distance D, so that the overlapping areas of the first electrode 410 in the isolation opening 240 where the second light-emitting units 312 of the first display area AA1 and the second display area AA2 are located are equal to the overlapping areas of the isolation structure 200, that is, the overlapping resistances are equal, thereby improving the brightness uniformity of the first display area AA1 and the second display area AA2, thereby improving the performance of the OLED display product.

[0095] like Figure 3 and Figure 4 As shown, in some optional embodiments, the light-emitting unit 310 includes a third light-emitting unit 313 having a color different from that of the first light-emitting unit 311 and the second light-emitting unit 312. In the first display area AA1, the extension distance D around the third light-emitting unit 313 is a fifth extension distance D5. In the second display area AA2, the extension distance D around the third light-emitting unit 313 is a sixth extension distance D6. The fifth extension distance D5 is equal to the sixth extension distance D6.

[0096] In these optional embodiments, the fifth extension distance D5 is equal to the sixth extension distance D6, that is, the isolation structure 200 around the third light-emitting unit 313 of the first display area AA1 and the third light-emitting unit 313 of the second display area AA2 has the same extension distance D, so that the overlapping area between the first electrode 410 in the isolation opening 240 where the third light-emitting unit 313 of the first display area AA1 and the second display area AA2 is located is equal to the overlapping area of ​​the isolation structure 200, that is, the overlapping resistance is equal, thereby improving the brightness uniformity of the first display area AA1 and the second display area AA2, thereby improving the performance of the OLED display product.

[0097] Please also read Figure 5 and Figure 6 , Figure 5 is a partial cross-sectional view of a first display area of ​​a display panel in another embodiment; Figure 6 is a partial cross-sectional view of a second display area of ​​a display panel in another embodiment.

[0098] like Figure 5 and Figure 6 As shown, in some optional embodiments, the isolation structure 200 includes a first isolation structure 201 located in the first display area AA1 and a second isolation structure 202 located in the second display area AA2, the first isolation structure 201 encloses a partial isolation opening 240 and a first light-transmitting opening 250, and the second isolation structure 202 encloses a partial isolation opening 240 and a second light-transmitting opening 260.

[0099] In these optional embodiments, a first light-transmitting opening 250 is opened on the first isolation structure 201 of the first display area AA1, and a second light-transmitting opening 260 is opened on the second isolation structure 202 of the second display area AA2, so as to reduce the density difference between the first isolation structure 201 in the first display area AA1 and the density difference between the second isolation structure 202 in the second display area AA2. When etching the isolation opening 240, the first light-transmitting opening 250 and the second light-transmitting opening 260, the wet etching liquid of the first display area AA1 will enter the first light-transmitting opening 250 and the isolation opening 240 at the same time, so as to reduce the side etching amount of the wet etching liquid on the first isolation structure 201, and the wet etching liquid of the second display area AA2 will enter the second light-transmitting opening 260 at the same time. 0 and the isolation opening 240, thereby reducing the side etching amount of the wet etching solution on the second isolation structure 202, so as to improve the problem that the first display area AA1 does not have the first light-transmitting opening 250, resulting in the side etching amount of the first isolation structure 201 being greater than the side etching amount of the second isolation structure 202 in the second display area AA2, that is, reducing the difference in the side etching amount between the first isolation structure 201 and the second isolation structure 202, reducing the difference between the extension distance D of the first isolation structure 201 and the extension distance D of the second isolation structure 202, reducing the difference between the overlap resistance of the first electrode 410 and the first isolation structure 201 and the overlap resistance of the first electrode 410 and the second isolation structure 202, and improving the brightness uniformity of the first display area AA1 and the second display area AA2.

[0100] In some optional embodiments, the orthographic projection area of ​​the first light-transmitting opening 250 on the substrate 100 is the first area, the orthographic projection area of ​​the second light-transmitting opening 260 on the substrate 100 is the fourth area, the ratio of the first area to the area of ​​the first display area AA1 is the first ratio, the ratio of the fourth area to the area of ​​the second display area AA2 is the second ratio, and the first ratio is equal to the second ratio. The orthographic projection area of ​​the first isolation opening 241 on the substrate 100 is the second area, the orthographic projection area of ​​the first isolation structure 201 on the substrate 100 is the third area, the orthographic projection area of ​​the second isolation opening 242 on the substrate 100 is the fifth area, the orthographic projection area of ​​the second isolation structure 202 on the substrate 100 is the sixth area, the area of ​​the first display area AA1 is the sum of the first area, the second area, and the third area, and the area of ​​the second display area AA2 is the sum of the fourth area, the fifth area, and the sixth area.

[0101] In these optional embodiments, the first ratio is equal to the second ratio, that is, the distribution density of the first light-transmitting openings 250 in the first display area AA1 is equal to the distribution density of the second light-transmitting openings 260 in the second display area AA2, and the distribution density of the first isolation structure 201 in the first display area AA1 is similar to or equal to the distribution density of the second isolation structure 202 in the second display area AA2, thereby reducing the influence of the first light-transmitting openings 250 and the second light-transmitting openings 260 on the extension distance D of the first isolation structure 201 and the second isolation structure 202, so that the extension distance D of at least part of the first isolation structure 201 is equal to the extension distance D of the second isolation structure 202, and the difference between the overlap resistance of the first electrode 410 and the first isolation structure 201 and the overlap resistance of the first electrode 410 and the second isolation structure 202 is reduced, thereby improving the brightness uniformity of the first display area AA1 and the second display area AA2.

[0102] In these optional embodiments, the first ratio may be close to the second ratio, for example, the first ratio is 90% to 110% of the second ratio, so as to improve the brightness uniformity of the first display area AA1 and the second display area AA2.

[0103] Optionally, the orthographic projection area of ​​at least one of the multiple first light-transmitting openings 250 on the substrate 100 is equal to the orthographic projection area of ​​at least one of the multiple second light-transmitting openings 260 on the substrate 100, so as to reduce the difference in distribution density between the first light-transmitting openings 250 in the first display area AA1 and the second light-transmitting openings 260 in the second display area AA2, reduce the influence of the first light-transmitting openings 250 and the second light-transmitting openings 260 on the extension distance D of the first isolation structure 201 and the second isolation structure 202, reduce the difference between the overlap resistance of the first electrode 410 and the first isolation structure 201 and the overlap resistance of the first electrode 410 and the second isolation structure 202, and improve the brightness uniformity of the first display area AA1 and the second display area AA2.

[0104] Optionally, the number of first light-transmitting openings 250 within a unit area of ​​the first display area AA1 is equal to the number of second light-transmitting openings 260 within a unit area of ​​the second display area AA2, so as to reduce the difference in distribution density between the first light-transmitting openings 250 in the first display area AA1 and the second light-transmitting openings 260 in the second display area AA2, reduce the influence of the first light-transmitting openings 250 and the second light-transmitting openings 260 on the extension distance D of the first isolation structure 201 and the second isolation structure 202, reduce the difference between the overlap resistance of the first electrode 410 and the first isolation structure 201 and the overlap resistance of the first electrode 410 and the second isolation structure 202, and improve the brightness uniformity of the first display area AA1 and the second display area AA2.

[0105] Optionally, the orthographic projection area of ​​the first light-transmitting opening 250 on the substrate 100 is equal to the orthographic projection area of ​​the second light-transmitting opening 260 on the substrate 100, and the number of the first light-transmitting openings 250 within a unit area of ​​the first display area AA1 is equal to the number of the second light-transmitting openings 260 within a unit area of ​​the second display area AA2, so that the distribution density of the first light-transmitting openings 250 in the first display area AA1 is equal to the distribution density of the second light-transmitting openings 260 in the second display area AA2, and the extension distance D of at least part of the first isolation structure 201 is equal to the extension distance D of the second isolation structure 202, so that the overlapping area between the first electrode 410 and the isolation structure 200 in the isolation opening 240 where at least part of the light-emitting units 310 of the first display area AA1 and the second display area AA2 are located is equal, that is, the overlapping resistance is equal, thereby improving the brightness uniformity of the first display area AA1 and the second display area AA2, thereby improving the performance of the OLED display product.

[0106] 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 , the first electrode layer 400 including a first electrode 410 located in the isolation opening 240 , and the first electrode 410 is electrically connected to the isolation structure 200 .

[0107] 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 .

[0108] In some 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 .

[0109] 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.

[0110] 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.

[0111] See also Figure 7 , Figure 7 is a partial cross-sectional view of a first display area of ​​a display panel in yet another embodiment.

[0112] like Figure 7 As shown, in some optional embodiments, the first electrode layer 400 further includes a redundant electrode 420 located in the first light-transmitting opening 250 .

[0113] In these optional embodiments, the redundant electrode 420 is disposed in the first light-transmitting opening 250 , which can reduce the mutual interference between the signal of the redundant electrode 420 close to the substrate 100 and the signal far from the substrate 100 , thereby achieving the signal shielding effect of the redundant electrode 420 .

[0114] In some optional embodiments, the redundant electrode 420 is electrically connected to the isolation structure 200 .

[0115] In these optional embodiments, after the isolation structure 200 is electrically connected to the redundant electrode 420, the redundant electrode 420 and the isolation structure 200 have the same potential, and the isolation structure 200 provides a fixed potential to the redundant electrode 420, so that the potential of the redundant electrode 420 is stable and is not easily interfered by signals on the substrate 100 side and the side away from the substrate 100, thereby improving the signal shielding effect of the redundant electrode 420.

[0116] Optionally, the light-emitting layer 300 also includes a redundant unit 320 located in the first light-transmitting opening 250, and the redundant electrode 420 covers the redundant unit 320. When preparing the light-emitting layer 300, the light-emitting layer 300 is broken at the edge of the isolation structure 200 to form a light-emitting unit 310 located in the isolation opening 240 and a redundant unit 320 located in the first light-transmitting opening 250. The redundant unit 320 located in the first light-transmitting opening 250 is retained, thereby reducing the etching steps in the first light-transmitting opening 250 and simplifying the preparation process.

[0117] Optionally, a packaging unit 520 is provided in the first light-transmitting opening 250, and the packaging unit 520 is located on the side of the redundant electrode 420 away from the substrate 100. When preparing the first packaging layer 500, the first packaging layer 500 is broken at the edge of the isolation structure 200 to form a packaging portion 510 located in the isolation opening 240 and a packaging unit 520 in the first light-transmitting opening 250. The packaging unit 520 located in the first light-transmitting opening 250 is retained, thereby reducing the etching steps in the first light-transmitting opening 250 and simplifying the preparation process.

[0118] In some optional embodiments, the first encapsulation layer 500 is further included, located on a side of the light emitting layer 300 facing away from the substrate 100 , and the first encapsulation layer 500 includes an encapsulation portion 510 located in the isolation opening 240 .

[0119] In these optional embodiments, the encapsulation portion 510 of the first encapsulation layer 500 is disposed within the isolation opening 240 to encapsulate the light-emitting unit 310 and the first electrode 410 within the isolation opening 240, thereby reducing the invasion of water and oxygen into the light-emitting unit 310 and the first electrode 410 and improving the service life of the light-emitting unit 310 and the first electrode 410.

[0120] In some optional embodiments, the material of the first encapsulation layer 500 includes an inorganic material.

[0121] In these optional embodiments, the first encapsulation layer 500 includes an inorganic material, which has good density and good barrier properties against water vapor and oxygen.

[0122] See also Figure 8 , Figure 8 is a partial cross-sectional view of a first display area of ​​a display panel in yet another embodiment.

[0123] like Figure 8 As shown, optionally, the display panel 10 further includes: a second encapsulation layer 530, located on the side of the first encapsulation layer 500 away from the substrate 100, and the second encapsulation layer 530 is in contact with the isolation structure 200; and a third encapsulation layer 540, located on the side of the second encapsulation layer 530 away from the substrate 100. The display panel 10 adopts three-layer encapsulation, has good encapsulation performance, and reduces the possibility of water and oxygen intrusion.

[0124] Optionally, part of the second encapsulation layer 530 is filled in the second light-transmitting opening 260 to achieve encapsulation of the second light-transmitting opening 260 .

[0125] Optionally, the material of the second encapsulation layer 530 includes an organic material.

[0126] Optionally, the material of the third encapsulation layer 540 includes inorganic material. The first encapsulation layer 500, the second encapsulation layer 530 and the third encapsulation layer 540 are respectively encapsulated with inorganic material, organic material and inorganic material to form a TFE (Thin Film Encapsulation, TFE) thin film encapsulation structure to further improve the encapsulation performance.

[0127] 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.

[0128] In some optional embodiments, the second layer 220 includes a conductive material or an insulating material.

[0129] 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.

[0130] In some optional embodiments, both the first layer 210 and the second layer 220 include metal materials, and the materials of the first layer 210 and the second layer 220 are different.

[0131] 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.

[0132] See also Fig. 9 , Fig. 9 is a partial cross-sectional view of a display panel in another embodiment.

[0133] like Fig. 9 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 .

[0134] 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.

[0135] In some optional embodiments, the display panel 10 further includes: a pixel definition layer 600 located on the substrate 100 , the pixel definition layer 600 includes a pixel defining portion 610 and a pixel opening 620 enclosed by the pixel defining portion 610 , and the pixel opening 620 is connected to the isolation opening 240 .

[0136] In these optional embodiments, the pixel defining portion 610 of the pixel defining layer 600 encloses a pixel opening 620 to set the light emitting unit 310 and realize normal light emission of the light emitting unit 310. In addition, the pixel defining portion 610 defines the setting area of ​​each light emitting unit 310 to reduce the cross-color defect between each light emitting unit 310.

[0137] Optionally, the display panel 10 further includes a second electrode 630, and the second electrode 630 is exposed by the pixel opening 620. One of the second electrode 630 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 described by taking the second electrode 630 as the anode of the light-emitting unit 310 and the first electrode 410 as the cathode of the light-emitting unit 310. Patents with application numbers 202310707209.0 and 202311346196.5 record the relevant contents of the cathode for reference.

[0138] like Figure 5 and Figure 6 As shown, optionally, the pixel definition layer 600 is exposed by the first light-transmitting opening 250 and the second light-transmitting opening 260 , and both the first light-transmitting opening 250 and the second light-transmitting opening 260 are through openings, thereby improving the light transmittance of the first light-transmitting opening 250 and the second light-transmitting opening 260 .

[0139] Please also read Figure 8 and Fig.10 , Fig.10 is a partial cross-sectional view of a second display area of ​​a display panel in yet another embodiment.

[0140] like Figure 8 and Fig.10 As shown, optionally, in the first light-transmitting opening 250, the pixel definition layer 600 contacts the redundant electrode 420, and in the second light-transmitting opening 260, the pixel definition layer 600 contacts the second encapsulation layer 530. The redundant electrode 420 is arranged in the first light-transmitting opening 250, which can reduce the mutual interference between the signal of the redundant electrode 420 close to the substrate 100 and the signal far from the substrate 100, thereby realizing the signal shielding effect of the redundant electrode 420. The second encapsulation layer 530 realizes the encapsulation of the second light-transmitting opening 260.

[0141] Optionally, the redundant electrode 420 and the redundant unit 320 are not disposed in the second light-transmitting opening 260 , so that the second light-transmitting opening 260 has a higher transmittance.

[0142] 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).

[0143] According to a second aspect of the present application, a display panel 10 is provided. The display panel 10 has a first display area AA1 and a second display area AA2. The first display area AA1 is adjacent to the second display area AA2. The display panel 10 further includes: a substrate 100; an isolation structure 200, located on one side of the substrate 100, the isolation structure 200 encloses an isolation opening 240; a light-emitting layer 300, located on one side of the substrate 100, the light-emitting layer 300 includes a light-emitting unit 310 located in the isolation opening 240; the isolation structure 200 includes a first isolation structure 201 located in the first display area AA1 and a second isolation structure 202 located in the second display area AA2. The second isolation structure 202 of the second display area AA2, the first isolation structure 201 encloses a partial isolation opening 240 and a first light-transmitting opening 250, and the second isolation structure 202 encloses a partial isolation opening 240 and a second light-transmitting opening 260; wherein, the orthographic projection area of ​​the first light-transmitting opening 250 on the substrate 100 is a first area, the orthographic projection area of ​​the second light-transmitting opening 260 on the substrate 100 is a fourth area, the ratio of the first area to the area of ​​the first display area AA1 is a first ratio, the ratio of the fourth area to the area of ​​the second display area AA2 is a second ratio, and the first ratio is equal to the second ratio.

[0144] According to the display panel 10 of the embodiment of the present application, the display panel 10 has a first display area AA1 and a second display area AA2, the first display area AA1 and the second display area AA2 are arranged adjacent to each other, and light can pass through the second display area AA2 to reach the photosensitive component, thereby improving the photosensitivity effect of the display panel 10. The display panel 10 also includes a substrate 100, an isolation structure 200, and a light-emitting layer 300. 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 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, and the first layer 210 is concavely arranged relative to the second layer 220, and the light-emitting layer 300 is difficult to connect at the edge of the isolation structure 200, so that it breaks, and 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 first ratio is equal to the second ratio, that is, the distribution density of the first light-transmitting openings 250 in the first display area AA1 is equal to the distribution density of the second light-transmitting openings 260 in the second display area AA2, and the distribution density of the first isolation structure 201 in the first display area AA1 is similar to or equal to the distribution density of the second isolation structure 202 in the second display area AA2, thereby reducing the influence of the first light-transmitting openings 250 and the second light-transmitting openings 260 on the extension distance D of the first isolation structure 201 and the second isolation structure 202, so that the extension distance D of at least part of the first isolation structure 201 is equal to the extension distance D of the second isolation structure 202, and the difference between the overlap resistance of the first electrode 410 and the first isolation structure 201 and the overlap resistance of the first electrode 410 and the second isolation structure 202 is reduced, thereby improving the brightness uniformity of the first display area AA1 and the second display area AA2.

[0145] 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.

[0146] The embodiment of the third aspect of the present application also provides a display device, including the display panel 10 of any one of the first and second aspects. Since the display device provided by the embodiment of the third aspect of the present application includes the display panel 10 of any one of the first and second aspects, 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 one of the first and second aspects, which will not be described in detail here.

[0147] 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.

[0148] 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 by any of the first and second aspects of the present application. Figures 1 to 10 The display panel 10 and referring to Fig.11 , Fig.11 1 is a flow chart of a method for manufacturing a display panel provided in an embodiment of the present application. The display panel 10 has a first display area AA1 and a second display area AA2, the first display area AA1 and the second display area AA2 are arranged adjacent to each other, and the manufacturing method includes:

[0149] Step S01: preparing an isolation structure on a substrate, the isolation structure enclosing an isolation opening, a first layer and a second layer located on a side of the first layer away from the substrate, and an orthographic projection of the first layer on the substrate is located within an orthographic projection of the second layer on the substrate.

[0150] Step S02: Prepare a light-emitting layer on a substrate, the light-emitting layer including a light-emitting unit located in an isolation opening; the distance between the edge of the orthographic projection of the first layer on the substrate and the edge of the orthographic projection of the second layer on the substrate is an extension distance, and the ratio of the extension distance of at least part of the circumference of the light-emitting unit in the first display area to the extension distance of the circumference of the light-emitting unit in the second display area is 90% to 110%.

[0151] According to the preparation method of the embodiment of the present application, the isolation structure 200 is prepared by step S01, the display panel 10 has a first display area AA1 and a second display area AA2, and light can reach the photosensitive component through the second display area AA2, thereby improving the photosensitivity of the display panel 10. The display panel 10 also includes a substrate 100, an isolation structure 200 and a light-emitting layer 300. 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 first layer 210 and the second layer 220 are stacked to form the isolation structure 200, the orthographic projection of the first layer 210 disposed 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 larger than the area of ​​the first layer 210, 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 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 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 light-emitting layer 300 is prepared through step S02. The circumferential extension distance D of at least part of the light-emitting unit 310 in the first display area AA1 is 90% to 110% of the circumferential extension distance D of the light-emitting unit 310 in the second display area AA2, so that the circumferential extension distance D of at least part of the light-emitting unit 310 in the first display area AA1 is close to or equal to the circumferential extension distance D of the light-emitting unit 310 in the second display area AA2, the overlapping areas of the first electrode 410 and the isolation structure 200 at two positions with similar extension distances D are similar, and the overlapping resistance of at least part of the first electrode 410 and the isolation structure 200 in the first display area AA1 and the second display area AA2 is similar, thereby avoiding the problem that the circumferential extension distance D of at least part of the light-emitting unit 310 in the first display area AA1 and the circumferential extension distance D of the light-emitting unit 310 in the second display area AA2 is greatly different, thereby improving the brightness uniformity of the first display area AA1 and the second display area AA2, thereby improving the performance of the OLED display product.

[0152] In some optional embodiments, the isolation opening 240 includes a first isolation opening 241, a second isolation opening 242, and a third isolation opening 243, and the isolation structure 200 further encloses a first light-transmitting opening 250 located in the first display area AA1 and a second light-transmitting opening 260 located in the second display area AA2. After step S01, the method further includes:

[0153] A first electrode 410 material layer and a first packaging material layer are prepared on the substrate 100 , and the first electrode 410 material layer and the first packaging material layer are patterned to form a first electrode 410 unit located in the first isolation opening 241 and a first packaging portion 510 ;

[0154] Prepare a second electrode 630 material layer and a second packaging material layer on a side of the first packaging part 510 away from the substrate 100 , and pattern the second electrode 630 material layer and the second packaging material layer to form a second electrode 630 unit located at the second isolation opening 242 and a second packaging part 510 ;

[0155] A third electrode material layer and a third packaging material layer are prepared on the side of the second packaging part 510 facing away from the substrate 100, and the third electrode material layer and the third packaging material layer are patterned to form a third electrode unit and a third packaging part 510 located in the third isolation opening 243, and a redundant electrode 420 and a packaging unit 520 located in the first light-transmitting opening 250.

[0156] In these optional embodiments, while forming the third electrode unit and the third packaging portion 510 located in the third isolation opening 243, the redundant electrode 420 and the packaging unit 520 located in the first light-transmitting opening 250 are formed. That is, when the last first electrode 410 and the packaging portion 510 are prepared, the redundant electrode 420 and the packaging unit 520 of the first light-transmitting opening 250 located in the first light-transmitting opening 250 are prepared at the same time. This can avoid damage to the redundant electrode 420 located in the first light-transmitting opening 250 caused by the patterning process in the aforementioned process, thereby ensuring the shielding effect of the redundant electrode 420.

[0157] 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 has a first display area and a second display area, the first display area is arranged adjacent to the second display area, and the display panel further includes: substrate; An isolation structure, located on one side of the substrate, and the isolation structure encloses an isolation opening; A light-emitting layer, located on one side of the substrate, wherein the light-emitting layer includes a light-emitting unit located in the isolation opening; 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; Among them, the distance between the orthographic projection edge of the first layer on the substrate and the orthographic projection edge of the second layer on the substrate is the extension distance, and the ratio of the extension distance of at least part of the peripheral side of the light-emitting unit in the first display area to the extension distance of the peripheral side of the light-emitting unit in the second display area is 90% to 110%.

2. The display panel according to claim 1, characterized in that: The extension distance of at least a portion of the circumference of the light emitting unit in the first display area is equal to the extension distance of the circumference of the light emitting unit in the second display area.

3. The display panel according to claim 2, characterized in that: In the first display area and the second display area, the extension distances of the peripheral sides of the light-emitting units with the same color are the same; The light-emitting unit includes a first light-emitting unit, in the first display area, the extension distance of the first light-emitting unit around the first extension distance, in the second display area, the extension distance of the first light-emitting unit around the second extension distance, and the first extension distance is equal to the second extension distance; Preferably, the light-emitting unit includes a second light-emitting unit of a different color from the first light-emitting unit, and in the first display area, the extension distance of the circumference of the second light-emitting unit is a third extension distance, and in the second display area, the extension distance of the circumference of the second light-emitting unit is a fourth extension distance, and the third extension distance is equal to the fourth extension distance; Preferably, the light-emitting unit includes a third light-emitting unit having a color different from that of the first light-emitting unit and the second light-emitting unit, and in the first display area, the extension distance around the third light-emitting unit is a fifth extension distance, and in the second display area, the extension distance around the third light-emitting unit is a sixth extension distance, and the fifth extension distance is equal to the sixth extension distance.

4. 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 second isolation structure located in the second display area. The first isolation structure encloses part of the isolation opening and the first light-transmitting opening, and the second isolation structure encloses part of the isolation opening and the second light-transmitting opening.

5. The display panel according to claim 4, characterized in that: The orthographic projection area of ​​the first light-transmitting opening on the substrate is a first area, the orthographic projection area of ​​the second light-transmitting opening on the substrate is a fourth area, the ratio of the first area to the area of ​​the first display area is a first ratio, the ratio of the fourth area to the area of ​​the second display area is a second ratio, and the first ratio is equal to the second ratio.

6. The display panel according to claim 4, characterized in that: The orthographic projection area of ​​at least one of the plurality of first light-transmitting openings on the substrate is equal to the orthographic projection area of ​​at least one of the plurality of second light-transmitting openings on the substrate.

7. The display panel according to claim 4, characterized in that: The number of the first light-transmitting openings within a unit area of ​​the first display region is equal to the number of the second light-transmitting openings within a unit area of ​​the second display region.

8. The display panel according to claim 4, 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 first electrode located in the isolation opening, the first electrode being electrically connected to the isolation structure; Preferably, the orthographic projection of the light emitting unit on the substrate is located within the orthographic projection of the first electrode on the substrate; Preferably, the light emitting unit and the isolation structure are spaced apart from each other.

9. The display panel according to claim 8, characterized in that: The first electrode layer further comprises a redundant electrode located in the first light-transmitting opening; Preferably, the redundant electrode is electrically connected to the isolation structure; Preferably, the light-emitting layer further includes a redundant unit located in the first light-transmitting opening, and the redundant electrode is arranged to cover the redundant unit.

10. The display panel according to claim 9, characterized in that: Also includes: A first encapsulation layer is located on a side of the light-emitting layer away from the substrate, the first encapsulation layer comprising an encapsulation portion located in the isolation opening; Preferably, the first encapsulation layer further comprises an encapsulation unit located in the first light-transmitting opening, the encapsulation unit is located on a side of the redundant electrode away from the substrate, and the encapsulation unit is spaced apart from the encapsulation portion; Preferably, the material of the first encapsulation layer includes an inorganic material; Preferably, the display panel further includes: a second encapsulation layer, located on a side of the first encapsulation layer away from the substrate; a third encapsulation layer, located on a side of the second encapsulation layer away from the substrate; Preferably, part of the second encapsulation layer fills the second light-transmitting opening; Preferably, the material of the second encapsulation layer includes organic material; Preferably, the material of the third encapsulation layer includes inorganic material.

11. The display panel according to claim 10, characterized in that: The first layer includes a conductive material; Preferably, the second layer comprises a conductive material or an insulating material; Preferably, the first layer and the second layer both comprise metal materials, and the materials of the first layer and the second layer are different; Preferably, the isolation structure further comprises 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 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 display panel further comprises a second electrode located between the substrate and the pixel definition layer, and the second electrode is exposed by the pixel opening; Preferably, the pixel definition layer is exposed by the first light-transmitting opening and the second light-transmitting opening; Preferably, in the first light-transmitting opening, the pixel definition layer is in contact with the redundant electrode, and in the second light-transmitting opening, the pixel definition layer is in contact with the second encapsulation layer.

12. A display panel, characterized in that: The display panel has a first display area and a second display area, the first display area is arranged adjacent to the second display area, and the display panel further includes: substrate; An isolation structure, located on one side of the substrate, and the isolation structure encloses an isolation opening; A light-emitting layer, located on one side of the substrate, wherein the light-emitting layer includes a light-emitting unit located in the isolation opening; The isolation structure comprises a first isolation structure located in the first display area and a second isolation structure located in the second display area, the first isolation structure encloses a portion of the isolation opening and the first light-transmitting opening, and the second isolation structure encloses a portion of the isolation opening and the second light-transmitting opening; Among them, the orthographic projection area of ​​the first light-transmitting opening on the substrate is a first area, the orthographic projection area of ​​the second light-transmitting opening on the substrate is a fourth area, the ratio of the first area to the area of ​​the first display area is a first ratio, the ratio of the fourth area to the area of ​​the second display area is a second ratio, and the first ratio is equal to the second ratio.

13. The display panel according to claim 12, characterized in that: The isolation structure includes a first layer and a second layer located on the side of the first layer facing 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, the distance between the orthographic projection edge of the first layer on the substrate and the orthographic projection edge of the second layer on the substrate is the extension distance, and in the first display area and the second display area, the extension distances on the peripheral sides of the light-emitting units with the same color are the same.

14. The display panel according to claim 12, 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 first electrode located in the isolation opening, the first electrode being electrically connected to the isolation structure; Preferably, the orthographic projection of the light emitting unit on the substrate is located within the orthographic projection of the first electrode on the substrate; Preferably, the light emitting unit and the isolation structure are spaced apart from each other.

15. The display panel according to claim 14, characterized in that: The first electrode layer further comprises a redundant electrode located in the first light-transmitting opening; Preferably, the redundant electrode is electrically connected to the isolation structure; Preferably, the light-emitting layer further comprises a redundant unit located in the first light-transmitting opening; Preferably, a packaging unit is disposed in the first light-transmitting opening, and the packaging unit is located on a side of the redundant electrode away from the substrate; Preferably, the redundant electrode and the redundant unit are not arranged in the second light-transmitting opening.

16. A display device, characterized in that: A display panel comprising any one of claims 1-15.

17. A method for preparing a display panel, characterized in that: The display panel has a first display area and a second display area, the first display area is arranged adjacent to the second display area, and the method includes: An isolation structure is prepared on a substrate, wherein the isolation structure encloses an isolation opening, a first layer and a second layer located on a side of the first layer facing away from the substrate, and an orthographic projection of the first layer on the substrate is located within an orthographic projection of the second layer on the substrate; A light-emitting layer is prepared on the substrate, the light-emitting layer includes a light-emitting unit located in the isolation opening; the distance between the edge of the orthographic projection of the first layer on the substrate and the edge of the orthographic projection of the second layer on the substrate is an extension distance, and the ratio of the extension distance of at least part of the peripheral side of the light-emitting unit in the first display area to the extension distance of the peripheral side of the light-emitting unit in the second display area is 90% to 110%.

18. The preparation method according to claim 17, characterized in that: The isolation openings include a first isolation opening, a second isolation opening, and a third isolation opening. The isolation structure further encloses a first light-transmitting opening located in the first display area and a second light-transmitting opening located in the second display area. After the step of preparing the isolation structure on the substrate, the method further includes: Preparing a first electrode material layer and a first packaging material layer on the substrate, and patterning the first electrode material layer and the first packaging material layer to form a first electrode unit and a first packaging portion located in the first isolation opening; Prepare a second electrode material layer and a second packaging material layer on a side of the first packaging portion away from the substrate, and pattern the second electrode material layer and the second packaging material layer to form a second electrode unit and a second packaging portion located at the second isolation opening; A third electrode material layer and a third packaging material layer are prepared on the side of the second packaging part away from the substrate, and the third electrode material layer and the third packaging material layer are patterned to form a third electrode unit and a third packaging part located at the third isolation opening, and a redundant electrode and packaging unit located at the first light-transmitting opening.

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