Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a substrate, a pixel electrode, an isolation structure and a light emitting layer. The pixel electrode is exposed out of the isolation opening, so that the pixel electrode can be in contact with the light-emitting unit to serve as an electrode of the light-emitting unit to control light emitting of the light-emitting unit. The light-transmitting opening comprises a first opening, the first opening is located between the first light-emitting unit and the second light-emitting unit, and the transmittance of the display panel can be improved through the arrangement of the first opening. The via hole of the pixel electrode corresponding to the first light-emitting unit or the second light-emitting unit corresponding to the first opening is arranged between the first light-emitting unit and the second light-emitting unit, so that the distance between one side of the first light-emitting unit or the second light-emitting unit, which is not provided with the pixel electrode, and other light-emitting units can be reduced; therefore, the area of the light-emitting unit is increased, the aperture ratio and the display effect of the display panel are improved, and 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 and a display device. 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 and a display device, aiming to improve the performance of OLED display products.

[0005] A first aspect of the present application provides a display panel, comprising: a substrate, comprising a metal layer and a planarization layer arranged on one side of the metal layer, wherein a plurality of vias are provided on the planarization layer; a pixel electrode, located on a side of the planarization layer away from the metal layer, wherein a plurality of pixel electrodes are provided and arranged at intervals, wherein at least a portion of the pixel electrodes is located in a corresponding via hole and is electrically connected to the metal layer; an isolation structure, located on a side of the pixel electrode away from the substrate, wherein the isolation structure encloses a plurality of isolation openings and a plurality of light-transmitting openings, wherein at least a portion of the pixel electrodes is exposed through the corresponding isolation openings; a light-emitting layer, located on one side of the substrate, wherein the light-emitting layer comprises light-emitting units located at corresponding isolation openings, wherein the light-emitting units comprise a first light-emitting unit and a second light-emitting unit, wherein the light-transmitting opening comprises a first opening, wherein the first opening is located between the first light-emitting unit and the second light-emitting unit, and wherein a via hole corresponding to at least one of the first light-emitting unit and the second light-emitting unit corresponding to the first opening is also located between the first light-emitting unit and the second light-emitting unit.

[0006] According to an implementation of the first aspect of the present application, the first light-emitting unit corresponding to the first opening and the via holes corresponding to the second light-emitting unit are both located between the first light-emitting unit and the second light-emitting unit.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the via hole corresponding to at least one of the first light-emitting unit and the second light-emitting unit on the substrate and the orthographic projection of the corresponding first opening on the substrate at least partially overlap.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projections of the corresponding vias in the first light-emitting unit and the second light-emitting unit on the substrate and the orthographic projections of the corresponding first openings on the substrate at least partially overlap.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the via hole corresponding to at least one of the first light-emitting unit and the second light-emitting unit on the substrate is located within the orthographic projection of the corresponding first opening on the substrate.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the light-emitting unit further includes a third light-emitting unit, the light-transmitting opening further includes a second opening, and the second opening is located between two adjacent third light-emitting units.

[0011] According to any of the foregoing embodiments of the first aspect of the present application, the first light-emitting unit and the second light-emitting unit are alternately arranged along the first direction to form a first pixel column, a plurality of third light-emitting units are arranged along the first direction to form a second pixel column, the first pixel column and the second pixel column are alternately arranged along the second direction, and the first direction and the second direction intersect.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection area of ​​the third light-emitting unit on the substrate is greater than or equal to the orthographic projection area of ​​the first light-emitting unit on the substrate, and / or the orthographic projection area of ​​the third light-emitting unit on the substrate is greater than or equal to the orthographic projection area of ​​the second light-emitting unit on the substrate.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, an orthographic projection area of ​​the second opening on the substrate is larger than an orthographic projection area of ​​the first opening on the substrate.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel includes a plurality of pixel units arranged in an array, and the pixel units include at least one first light-emitting unit, at least one second light-emitting unit and at least one third light-emitting unit.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the pixel unit includes a first light-emitting unit, a second light-emitting unit and a third light-emitting unit.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, in one pixel unit, the adjacent first light-emitting unit, the second light-emitting unit, and the third light-emitting unit are arranged side by side along the second direction;

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, in a pixel unit, the orthographic projection of the third light-emitting unit along the second direction at least partially overlaps with the orthographic projection of the first light-emitting unit along the second direction, and the orthographic projection of the third light-emitting unit along the second direction at least partially overlaps with the orthographic projection of the second light-emitting unit along the second direction.

[0018] According to any of the aforementioned implementations of the first aspect of the present application, one pixel unit is correspondingly provided with a first opening and a second opening.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, in a pixel unit, the via hole corresponding to the third light-emitting unit is located on a side of the third light-emitting unit away from the first light-emitting unit.

[0020] 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 corresponding isolation opening, and the first electrode is electrically connected to the isolation structure.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, the light-emitting layer further includes a first redundant unit located in the first opening.

[0022] According to any of the aforementioned implementations of the first aspect of the present application, the first electrode layer further includes a first redundant electrode located in the first opening.

[0023] According to any of the aforementioned embodiments of the first aspect of the present application, the light-emitting layer further includes a second redundant unit located in the second opening.

[0024] According to any of the aforementioned implementations of the first aspect of the present application, the first electrode layer further includes a second redundant electrode located in the second opening.

[0025] 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.

[0026] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel further 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 corresponding isolation opening.

[0027] According to any of the aforementioned embodiments of the first aspect of the present application, the first packaging layer further includes a first packaging unit located in the first opening.

[0028] According to any of the aforementioned embodiments of the first aspect of the present application, the first packaging layer also includes a second packaging unit located in the second opening.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure protrudes toward the isolation opening where the third light-emitting unit is located to form a protrusion.

[0034] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the via hole corresponding to the third light-emitting unit on the substrate is located within the orthographic projection of the protrusion on the substrate.

[0035] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel also includes: a pixel definition layer located on one side of the substrate, the pixel definition layer including a pixel defining portion and a plurality of pixel openings formed by the pixel defining portion, and the pixel openings are connected to the corresponding isolation openings.

[0036] According to any of the aforementioned embodiments of the first aspect of the present application, the pixel defining portion protrudes toward the isolation opening corresponding to the third light-emitting unit to form an extension portion.

[0037] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the via hole corresponding to the third light-emitting unit on the substrate is located within the orthographic projection of the extension portion on the substrate.

[0038] 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.

[0039] According to any of the aforementioned embodiments of the first aspect of the present application, the first layer includes a conductive material.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] According to a second aspect of the present application, there is provided a display panel, which further comprises: a substrate, comprising a metal layer and a planarization layer arranged on one side of the metal layer, wherein a plurality of vias are provided on the planarization layer; a pixel electrode, located on a side of the planarization layer away from the metal layer, wherein a plurality of pixel electrodes are provided and arranged at intervals, wherein at least a portion of the pixel electrode is located in a corresponding via and electrically connected to the metal layer; an isolation structure, located on a side of the pixel electrode away from the substrate, wherein the isolation structure encloses a plurality of isolation openings and a plurality of light-transmitting openings, wherein at least a portion of the pixel electrode is exposed through the corresponding isolation opening; a light-emitting layer, located on one side of the substrate, wherein the light-emitting layer comprises a light-emitting unit located at the isolation opening, wherein the light-emitting unit comprises a first light-emitting unit and a second light-emitting unit, wherein the light-transmitting opening comprises a first opening, wherein the first opening is located between the first light-emitting unit and the second light-emitting unit, and wherein the orthographic projection of the via corresponding to at least one of the first light-emitting unit and the second light-emitting unit corresponding to the first opening on the substrate and the orthographic projection of the same first opening on the substrate at least partially overlap.

[0044] According to any of the aforementioned embodiments of the second aspect of the present application, the first opening is located between the first light-emitting unit and the second light-emitting unit, and the orthographic projection of the via holes corresponding to the first light-emitting unit and the second light-emitting unit corresponding to the first opening on the substrate at least partially overlaps with the orthographic projection of the same first opening on the substrate;

[0045] According to any of the aforementioned embodiments of the second aspect of the present application, the orthographic projection of the via hole corresponding to at least one of the first light-emitting unit and the second light-emitting unit on the substrate is located within the orthographic projection of the corresponding first opening on the substrate;

[0046] According to any of the aforementioned embodiments of the second aspect of the present application, the light-emitting unit further includes a third light-emitting unit, the light-transmitting opening further includes a second opening, and the second opening is located between two adjacent third light-emitting units;

[0047] According to any of the aforementioned implementations of the second aspect of the present application, the display panel further comprises: 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 corresponding isolation opening, the first electrode being electrically connected to the isolation structure;

[0048] According to any of the aforementioned embodiments of the second aspect of the present application, the light-emitting layer further includes a first redundant unit located in the first opening;

[0049] According to any of the aforementioned implementations of the second aspect of the present application, the first electrode layer further includes a first redundant electrode located in the first opening;

[0050] According to any of the aforementioned embodiments of the second aspect of the present application, the light-emitting layer further includes a second redundant unit located in the second opening;

[0051] According to any of the aforementioned implementations of the second aspect of the present application, the first electrode layer further includes a second redundant electrode located in the second opening;

[0052] 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.

[0053] 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.

[0054] According to the display panel of the embodiment of the present application, the display panel includes a substrate, a pixel electrode, an isolation structure and a light-emitting layer. 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 and located in the isolation opening, reducing the crosstalk of carriers in the light-emitting layer, improving the display effect of the display panel, and preparing the light-emitting unit does not require the use of a precision mask plate, which can reduce the development and use of precision masks and reduce the preparation cost. The pixel electrode is connected to the metal layer through the via on the planarization layer to realize the signal control of the pixel electrode by the metal layer, and the pixel electrode is exposed by the isolation opening, so that the pixel electrode can contact the light-emitting unit to serve as the electrode of the light-emitting unit to control the light emission of the light-emitting unit. The light-transmitting opening includes a first opening, and the first opening is located between the first light-emitting unit and the second light-emitting unit. The setting of the first opening can improve the transmittance of the display panel. The via hole of the pixel electrode corresponding to the first light-emitting unit and / or the second light-emitting unit corresponding to the first opening is also arranged between the first light-emitting unit and the second light-emitting unit, that is, the first opening and the via hole corresponding to the first light-emitting unit and / or the second light-emitting unit are arranged between the same two first light-emitting units and the second light-emitting unit, so that the distance between the first light-emitting unit and the second light-emitting unit on the side where the pixel electrode is not arranged and the other light-emitting units can be reduced, thereby increasing the area of ​​the light-emitting unit, so as to improve the aperture ratio and display effect of the display panel, 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 partial top view schematic diagram 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 3It is a local enlarged view of the area where the pixel electrode is located;

[0059] Figure 4 is a partial top view schematic diagram of a display panel in another embodiment;

[0060] Figure 5 is a partial top view schematic diagram of a display panel in another embodiment;

[0061] Figure 6 is a partial top view schematic diagram of a display panel in yet another embodiment;

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

[0063] Figure 8 is a partial top view schematic diagram of a display panel in yet another embodiment;

[0064] Fig. 9 is a partial top view schematic diagram of a display panel in yet another embodiment;

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

[0066] Fig.11 is a partial cross-sectional view of a display panel in yet another embodiment;

[0067] Fig.12 is a partial top view schematic diagram of a display panel in yet another embodiment;

[0068] Fig.13 is a partial cross-sectional view of a display panel in yet another embodiment.

[0069] Description of reference numerals:

[0070] 10. Display panel;

[0071] 100, substrate; 110, planarization layer; 120, via hole; 130, metal layer;

[0072] 200, isolation structure; 201, protrusion; 210, first layer; 220, second layer; 230, third layer; 240, isolation opening; 250, light-transmitting opening; 251, first opening; 252, second opening;

[0073] 300, light-emitting layer; 310, light-emitting unit; 311, first light-emitting unit; 312, second light-emitting unit; 313, third light-emitting unit; 320, first redundant unit; 330, second redundant unit; 340, first pixel column; 350, second pixel column; 360, pixel unit;

[0074] 400, first electrode layer; 410, first electrode; 420, first redundant electrode; 430, second redundant electrode

[0075] 500, first packaging layer; 510, packaging part; 511, first packaging unit; 512, second packaging unit;

[0076] 600, pixel definition layer; 610, pixel defining portion; 611, extension portion; 620, pixel opening; 630, pixel electrode;

[0077] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0078] 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.

[0079] 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.

[0080] 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.

[0081] Embodiments of the present application provide a display panel and a display device. Embodiments of the display panel and the display device will be described below in conjunction with the accompanying drawings.

[0082] An embodiment of the present application provides a display panel, which may be an organic light emitting diode (OLED) display panel.

[0083] Please also read Figures 1 to 5 , Figure 1 is a partial top view schematic diagram of a display panel provided in an embodiment of the present application; Figure 2 is a partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0084] Figure 3 It is a local enlarged view of the area where the pixel electrode is located; Figure 4 is a partial top view schematic diagram of a display panel in another embodiment; Figure 5 FIG. 4 is a partial top view of a display panel in yet another embodiment.

[0085] like Figures 1 to 5 As shown, the first embodiment of the present application provides a display panel 10, a display panel 10, the display panel 10 includes: a substrate 100, including a metal layer 130 and a planarization layer 110 arranged on one side of the metal layer 130, and a plurality of via holes 120 are opened on the planarization layer 110; a pixel electrode 630, located on a side of the planarization layer 110 away from the metal layer 130, a plurality of pixel electrodes 630 are arranged and arranged at intervals, at least a portion of the pixel electrode 630 is located in the corresponding via hole 120 and is electrically connected to the metal layer 130; an isolation structure 200, located on a side of the pixel electrode 630 away from the substrate 100, and the isolation structure 200 encloses a plurality of isolation openings 240 and a plurality of light-transmitting openings 250, at least a portion of the pixel electrode 630 is exposed by the corresponding isolation openings 240; the light-emitting layer 300 is located on one side of the substrate 100, the light-emitting layer 300 includes a light-emitting unit 310 located at the corresponding isolation openings 240, the light-emitting unit 310 includes a first light-emitting unit 311 and a second light-emitting unit 312, the light-transmitting openings 250 include a first opening 251, the first opening 251 is located between the first light-emitting unit 311 and the second light-emitting unit 312, and the via 120 corresponding to at least one of the first light-emitting unit 311 and the second light-emitting unit 312 corresponding to the first opening 251 is also located between the first light-emitting unit 311 and the second light-emitting unit 312.

[0086] The via hole 120 corresponding to the first light-emitting unit 311 refers to the via hole 120 where the pixel electrode 630 in contact with the first light-emitting unit 311 is located, and the via hole 120 corresponding to the second light-emitting unit 312 refers to the via hole 120 where the pixel electrode 630 in contact with the second light-emitting unit 312 is located. The via hole 120 corresponding to the first light-emitting unit 311 is located between the first light-emitting unit 311 and the second light-emitting unit 312, which means that the orthographic projection of the via hole 120 corresponding to the first light-emitting unit 311 on the substrate 100 is located between the orthographic projection of the first light-emitting unit 311 and the second light-emitting unit 312 on the substrate 100. The via hole 120 corresponding to the second light-emitting unit 312 is located between the first light-emitting unit 311 and the second light-emitting unit 312 on the substrate 100, which means that the orthographic projection of the via hole 120 corresponding to the second light-emitting unit 312 on the substrate 100 is located between the orthographic projection of the first light-emitting unit 311 and the second light-emitting unit 312 on the substrate 100. The light-transmitting opening 250 is disposed between the first light-emitting unit 311 and the second light-emitting unit 312, which means that the orthographic projection of the light-transmitting opening 250 on the substrate 100 is located between the orthographic projections of the first light-emitting unit 311 and the second light-emitting unit 312 on the substrate 100. The first light-emitting unit 311 and the second light-emitting unit 312 corresponding to the first opening 251 refer to the first light-emitting unit 311 and the second light-emitting unit 312 located on both sides of the first opening 251.

[0087] The first opening 251 is located between the first light emitting unit 311 and the second light emitting unit 312 , which means that the orthographic projection of the first opening 251 on the substrate 100 is located between the orthographic projection of the first light emitting unit 311 and the second light emitting unit 312 on the substrate 100 .

[0088] According to the display panel 10 of the embodiment of the present application, the display panel 10 includes a substrate 100, a pixel electrode 630, 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, which is difficult to connect, and thus breaks. The light-emitting layer 300 breaks to form light-emitting units 310 that are disconnected from each other and located in the isolation opening 240, 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 pixel electrode 630 is connected to the metal layer 130 through the via 120 on the planarization layer 110, so that the metal layer 130 controls the signal of the pixel electrode 630, and the pixel electrode 630 is exposed by the isolation opening 240, so that the pixel electrode 630 can contact the light-emitting unit 310, so as to serve as the electrode of the light-emitting unit 310 and control the light emission of the light-emitting unit 310. The light-transmitting opening 250 includes a first opening 251, and the first opening 251 is located between the first light-emitting unit 311 and the second light-emitting unit 312. The setting of the first opening 251 can improve the transmittance of the display panel 10. The via hole 120 of the pixel electrode 630 corresponding to the first light-emitting unit 311 and / or the second light-emitting unit 312 corresponding to the first opening 251 is also set between the first light-emitting unit 311 and the second light-emitting unit 312, that is, the first opening 251 and the via hole 120 corresponding to the first light-emitting unit 311 and the second light-emitting unit 312 are set between the same two first light-emitting units 311 and the second light-emitting unit 312, so that the distance between the first light-emitting unit 311 or the second light-emitting unit 312 and the other light-emitting units 310 on the side where the pixel electrode 630 is not set can be reduced, thereby increasing the area of ​​the light-emitting unit 310, so as to improve the aperture ratio and display effect of the display panel 10, thereby improving the performance of the OLED display product.

[0089] 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.

[0090] like Figure 4As shown, in some optional embodiments, the via holes 120 corresponding to the first light emitting unit 311 and the second light emitting unit 312 corresponding to the first opening 251 are both located between the first light emitting unit 311 and the second light emitting unit 312 .

[0091] In these optional embodiments, the via holes 120 of the pixel electrodes 630 corresponding to the first light-emitting unit 311 and the second light-emitting unit 312 are arranged between the first light-emitting unit 311 and the second light-emitting unit 312, so that the distance between the first light-emitting unit 311 and the second light-emitting unit 312 and other light-emitting units 310 on the side where the pixel electrode 630 is not arranged can be reduced, thereby further increasing the area of ​​the light-emitting unit 310, so as to improve the aperture ratio and display effect of the display panel 10, thereby improving the performance of the OLED display product.

[0092] like Figure 5 As shown, in some optional embodiments, the orthographic projection of the via hole 120 corresponding to at least one of the first light-emitting unit 311 and the second light-emitting unit 312 on the substrate 100 and the orthographic projection of the corresponding first opening 251 on the substrate 100 at least partially overlap.

[0093] In these optional embodiments, since the width of the area where the first opening 251 is opened between the first light-emitting unit 311 and the second light-emitting unit 312 is relatively large, it is convenient to improve the transmittance, and the via 120 corresponding to the first light-emitting unit 311 or the second light-emitting unit 312 is set in the area where the first opening 251 is located, so that the distance between the first light-emitting unit 311 and the second light-emitting unit 312 and other light-emitting units 310 on the side where the pixel electrode 630 is not set can be reduced, thereby further increasing the area of ​​the light-emitting unit 310, so as to improve the aperture ratio and display effect of the display panel 10, thereby improving the performance of the OLED display product.

[0094] In some optional embodiments, the orthographic projections of the corresponding via holes 120 in the first light-emitting unit 311 and the second light-emitting unit 312 on the substrate 100 and the orthographic projections of the corresponding first openings 251 on the substrate 100 at least partially overlap.

[0095] In these optional embodiments, when the area of ​​the isolation structure 200 around the first opening 251 is small and it is difficult to cover the entire via 120 of the pixel electrode 630, in order to set the via 120 of the pixel electrode 630 between the first light-emitting unit 311 and the second light-emitting unit 312, it is necessary to set at least part of the via 120 corresponding to the first light-emitting unit 311 and the second light-emitting unit 312 in the area where the first opening 251 is located, so that the distance between the first light-emitting unit 311 and the second light-emitting unit 312 and other light-emitting units 310 on the side where the pixel electrode 630 is not set can be reduced, thereby further increasing the area of ​​the light-emitting unit 310, so as to improve the aperture ratio and display effect of the display panel 10, thereby improving the performance of the OLED display product.

[0096] In some optional embodiments, the orthographic projection of the via hole 120 corresponding to at least one of the first light emitting unit 311 and the second light emitting unit 312 on the substrate 100 is located within the orthographic projection of the corresponding first opening 251 on the substrate 100 .

[0097] In these optional embodiments, since the first opening 251 has a larger coverage area, when the via hole 120 of the pixel electrode 630 is set between the first light-emitting unit 311 and the second light-emitting unit 312, it is easier to set the via hole 120 of the pixel electrode 630 in the area where the first opening 251 is located, so that the distance between the first light-emitting unit 311 and the second light-emitting unit 312 and other light-emitting units 310 on the side where the pixel electrode 630 is not set can be reduced, thereby further increasing the area of ​​the light-emitting unit 310, so as to improve the aperture ratio and display effect of the display panel 10, thereby improving the performance of the OLED display product.

[0098] Please also read Figure 6 and Figure 7 , Figure 6 is a partial top view schematic diagram of a display panel in yet another embodiment; Figure 7 is a partial cross-sectional view of a display panel in another embodiment. Figure 8 FIG. 4 is a partial top view of a display panel in yet another embodiment.

[0099] like Figure 6 , Figure 7 and Figure 8 As shown, in some optional embodiments, the light-emitting unit 310 further includes a third light-emitting unit 313 , and the light-transmitting opening 250 further includes a second opening 252 , and the second opening 252 is located between two adjacent third light-emitting units 313 .

[0100] The second opening 252 is located between two adjacent third light emitting units 313 , which means that the orthographic projection of the second opening 252 on the substrate 100 is located between the orthographic projections of two adjacent third light emitting units 313 on the substrate 100 .

[0101] In these optional embodiments, the second opening 252 is disposed between adjacent third light emitting units 313 to improve the transmittance between two adjacent third light emitting units 313. The second opening 252 and the first opening 251 located between the first light emitting unit 311 and the second light emitting unit 312 together form a light-transmitting area of ​​the display panel 10 to further increase the overall light-transmitting area of ​​the display panel 10 and improve the transmittance of the display panel 10.

[0102] like Figure 8 As shown, in some optional embodiments, the first light-emitting unit 311 and the second light-emitting unit 312 are alternately arranged along the first direction X to form a first pixel column 340, a plurality of third light-emitting units 313 are arranged along the first direction X to form a second pixel column 350, the first pixel column 340 and the second pixel column 350 are alternately arranged along the second direction Y, and the first direction X and the second direction Y intersect.

[0103] In one specific embodiment, the first direction X and the second direction Y are perpendicular to each other.

[0104] In these optional embodiments, when the first light-emitting unit 311, the second light-emitting unit 312 and the third light-emitting unit 313 are arranged in this way, the via hole 120 corresponding to the first light-emitting unit 311 is set between the first light-emitting unit 311 and the second light-emitting unit 312, so that the distance between the first light-emitting unit 311 and the adjacent third light-emitting unit 313 and the second light-emitting unit 312 on the side away from the via hole 120 corresponding to the first light-emitting unit 311 can be reduced; the via hole 120 corresponding to the second light-emitting unit 312 is set between the first light-emitting unit 311 and the second light-emitting unit 312, so that the distance between the second light-emitting unit 312 and the adjacent third light-emitting unit 313 and the first light-emitting unit 311 on the side away from the via hole 120 corresponding to the second light-emitting unit 312 can be reduced, thereby improving the aperture ratio of the first light-emitting unit 311, the second light-emitting unit 312 and the third light-emitting unit 313.

[0105] Optionally, the first light emitting unit 311 is a red light emitting unit 310 , the second light emitting unit 312 is a green light emitting unit 310 , and the third light emitting unit 313 is a blue light emitting unit 310 .

[0106] In some optional embodiments, the orthographic projection area of ​​the third light emitting unit 313 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the first light emitting unit 311 on the substrate 100, and / or the orthographic projection area of ​​the third light emitting unit 313 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the second light emitting unit 312 on the substrate 100.

[0107] The orthographic projection area of ​​the third light-emitting unit 313 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the first light-emitting unit 311 on the substrate 100; or, the orthographic projection area of ​​the third light-emitting unit 310 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the second light-emitting unit 312 on the substrate 100; or, the orthographic projection area of ​​the third light-emitting unit 313 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the first light-emitting unit 311 on the substrate 100, and the orthographic projection area of ​​the third light-emitting unit 313 on the substrate 100 is greater than or equal to the orthographic projection area of ​​the second light-emitting unit 312 on the substrate 100.

[0108] In these optional embodiments, the area of ​​the third light emitting unit 313 is set larger, which can increase the service life of the third light emitting unit 313 and avoid the problem of the brightness of the third light emitting unit 313 decaying too quickly, resulting in a decrease in the display effect of the display panel 10.

[0109] In some optional embodiments, the orthographic projection area of ​​the second opening 252 on the substrate 100 is larger than the orthographic projection area of ​​the first opening 251 on the substrate 100 .

[0110] In these optional embodiments, the orthographic projection area of ​​the second opening 252 is set to be larger, so as to further increase the overall light transmission area of ​​the display panel 10 and improve the transmittance of the display panel 10 .

[0111] Optionally, the display panel 10 further includes a touch layer, the touch layer includes touch electrodes and touch wirings, and the touch electrodes are electrically connected to the touch wirings to implement a touch function of the display panel 10 .

[0112] Optionally, the orthographic projection of the touch electrode on the substrate 100 and the orthographic projection of the first opening 251 on the substrate 100 are staggered, that is, the orthographic projection of the touch electrode on the substrate 100 is located outside the orthographic projection of the first opening 251 on the substrate 100, so as to avoid blocking of the first opening 251 by the touch electrode, improve the transmittance of the display panel 10 in the area where the first opening 251 is located, and avoid crosstalk between the touch electrode through the first opening 251 and the electrical signal close to the substrate 100.

[0113] Optionally, the orthographic projection of the touch line on the substrate 100 and the orthographic projection of the second opening 252 on the substrate 100 are staggered, that is, the orthographic projection of the touch line on the substrate 100 is located outside the orthographic projection of the second opening 252 on the substrate 100, so as to avoid the touch line blocking the second opening 252, improve the transmittance of the display panel 10 in the area where the second opening 252 is located, and avoid crosstalk between the touch line passing through the second opening 252 and the electrical signal close to the substrate 100.

[0114] like Figure 3 As shown, optionally, the orthographic projection of the metal layer 130 on the substrate 100 and the orthographic projection of the second opening 252 on the substrate 100 are staggered, that is, the orthographic projection of the metal layer 130 on the substrate 100 is located outside the orthographic projection of the second opening 252 on the substrate 100, thereby avoiding the metal layer 130 from blocking the second opening 252 and improving the transmittance of the display panel 10 in the area where the second opening 252 is located.

[0115] like Figure 8 As shown, in some optional embodiments, the display panel 10 includes a plurality of pixel units 360 arranged in an array, and the pixel unit 360 includes at least one first light emitting unit 311, at least one second light emitting unit 312, and at least one third light emitting unit 313. For example, the pixel unit 360 includes one first light emitting unit 311, one second light emitting unit 312, and one third light emitting unit 313.

[0116] In these optional embodiments, a plurality of pixel units 360 are arranged in an array, so that the arrangement of the first light-emitting unit 311, the second light-emitting unit 312 and the third light-emitting unit 313 is more uniform, thereby improving the display effect of the display panel 10. The orthographic projection of the light-transmitting opening 250 on the substrate 100 is located within the orthographic projection of the pixel unit 360 on the substrate 100, that is, a light-transmitting opening 250 is provided in the region where each pixel unit 360 is located, thereby further increasing the overall light-transmitting area of ​​the display panel 10 and improving the transmittance of the display panel 10. Moreover, the light-transmitting opening 250 is arranged in the same array as the pixel unit 360, thereby improving the uniformity of the arrangement of the light-transmitting opening 250 and improving the display effect of the display panel 10.

[0117] Optionally, in a pixel unit 360, adjacent first light-emitting units 311 and second light-emitting units 312 are arranged side by side with a third light-emitting unit 313 along the second direction Y. The side-by-side arrangement makes the arrangement of the first light-emitting unit 311, the second light-emitting unit 312 and the third light-emitting unit 313 more uniform, thereby improving the display effect of the display panel 10.

[0118] Optionally, in a pixel unit 360, the orthographic projection of the third light-emitting unit 311 along the second direction Y at least partially overlaps with the orthographic projection of the first light-emitting unit 311 along the second direction Y, and the orthographic projection of the third light-emitting unit 311 along the second direction Y at least partially overlaps with the orthographic projection of the second light-emitting unit 312 along the second direction Y.

[0119] Optionally, one pixel unit 360 is provided with one first opening 251 and one second opening 252. One first opening 251 and one second opening 252 are provided in the region where each pixel unit 360 is located, further increasing the overall light transmission area of ​​the display panel 10 and improving the transmittance of the display panel 10.

[0120] In some optional embodiments, the first opening 251 is located between adjacent first light-emitting units 311 and second light-emitting units 312 in the same pixel unit 360 , which means that the orthographic projection of the first opening 251 on the substrate 100 is located between the orthographic projection of the adjacent first light-emitting units 311 and second light-emitting units 312 in the same pixel unit 360 on the substrate 100 .

[0121] In these optional embodiments, when the first opening 251 is located between adjacent first light-emitting units 311 and second light-emitting units 312 in the same pixel unit 360, the via hole 120 corresponding to the first light-emitting unit 311 can be set between the adjacent first light-emitting units 311 and second light-emitting units 312 in the same pixel unit 360, so that the distance between the first light-emitting unit 311 and the adjacent third light-emitting unit 313 in the same pixel unit 360, the second light-emitting unit 312 and the third light-emitting unit 313 in the adjacent pixel unit 360 can be reduced; the via hole 120 corresponding to the second light-emitting unit 312 is set between the adjacent first light-emitting unit 311 and second light-emitting unit 312 in the same pixel unit 360, so that the distance between the second light-emitting unit 312 and the adjacent third light-emitting unit 313 in the same pixel unit 360, the first light-emitting unit 311 and the third light-emitting unit 313 in the adjacent pixel unit 360 can be reduced, thereby improving the aperture ratio of the first light-emitting unit 311, the second light-emitting unit 312 and the third light-emitting unit 313.

[0122] See also Fig. 9 , Fig. 9 FIG. 4 is a partial top view of a display panel in yet another embodiment.

[0123] like Fig. 9 As shown, in some optional embodiments, in a pixel unit 360 , the via hole 120 corresponding to the third light emitting unit 313 is located on a side of the third light emitting unit 313 away from the first light emitting unit 311 .

[0124] In these optional embodiments, the via 120 corresponding to the third light-emitting unit 313 is arranged on a side away from the first light-emitting unit 311 and the second light-emitting unit 312 in the same pixel unit 360, so that in the same pixel unit 360, the distance between the third light-emitting unit 313 and the adjacent first light-emitting unit 311 and the second light-emitting unit 312 can be reduced, thereby further increasing the aperture ratio of the first light-emitting unit 311, the second light-emitting unit 312 and the third light-emitting unit 313, thereby improving the display effect of the display panel 10.

[0125] The distance between one light emitting unit 310 and another light emitting unit 310 refers to the distance between the orthographic projection of one light emitting unit 310 on the substrate 100 and the orthographic projection of another light emitting unit 310 on the substrate 100 .

[0126] Optionally, the via hole 120 corresponding to the third light-emitting unit 313 is located between the first light-emitting unit 311 and the third light-emitting unit 313 in the same pixel unit 360 , and / or the via hole 120 corresponding to the third light-emitting unit 313 is located between the second light-emitting unit 312 and the third light-emitting unit 313 in the same pixel unit 360 .

[0127] like Figures 1 to 9 As 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 first electrode 410 located in the corresponding isolation opening 240, and the first electrode 410 is electrically connected to the isolation structure 200.

[0128] 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 whole-surface electrode, thereby ensuring the normal light emission of the light-emitting unit 310. One of the pixel 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 takes the pixel 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 as an example. Patents with application numbers 202310707209.0 and 202311346196.5 record the relevant contents of the cathode for reference.

[0129] See also Fig.10 , Fig.10 is a partial cross-sectional view of a display panel in yet another embodiment.

[0130] like Fig.10As shown, optionally, the light-emitting layer 300 also includes a first redundant unit 320 located in the first opening 251. When preparing the light-emitting unit 310, the portion located in the first opening 251 is retained to form the first redundant unit 320. There is no need to pattern and remove the first redundant unit 320, thereby simplifying the preparation process.

[0131] Optionally, the first light-emitting unit 311 and the first redundant unit 320 are prepared synchronously, or the second light-emitting unit 312 and the first redundant unit 320 are prepared synchronously, so as to simplify the preparation process.

[0132] Optionally, the first electrode layer 400 further includes a first redundant electrode 420 located in the first opening 251. When preparing the first electrode 410, the portion located in the first opening 251 is retained to form the first redundant electrode 420, and there is no need to pattern and remove the first redundant electrode 420, thereby simplifying the preparation process. The first redundant electrode 420 located in the first opening 251 is retained, and the first redundant electrode 420 is electrically connected to the isolation structure 200, so that the first redundant electrode 420 has a fixed potential, which can improve the mutual influence between the electrical signal of the first redundant electrode 420 close to the substrate 100 and the electrical signal of the first redundant electrode 420 far from the substrate 100, thereby playing a role in signal shielding.

[0133] Optionally, the first electrode 410 and the first redundant electrode 420 corresponding to the first light-emitting unit 311 are prepared simultaneously, or the first electrode 410 and the first redundant electrode 420 corresponding to the second light-emitting unit 312 are prepared simultaneously, so as to simplify the preparation process.

[0134] See also Fig.11 , Fig.11 is a partial cross-sectional view of a display panel in yet another embodiment.

[0135] like Fig.11 As shown, optionally, the light-emitting layer 300 also includes a second redundant unit 330 located in the second opening 252. When preparing the light-emitting unit 310, the portion located in the second opening 252 is retained to form the second redundant unit 330. There is no need to pattern and remove the second redundant unit 330, thereby simplifying the preparation process.

[0136] Optionally, the third light emitting unit 313 and the second redundant unit 330 are prepared synchronously to simplify the preparation process.

[0137] Optionally, the first electrode layer 400 further includes a second redundant electrode 430 located in the second opening 252. When preparing the first electrode 410, the portion located in the second opening 252 is retained to form the second redundant electrode 430, and the second redundant electrode 430 does not need to be patterned and removed, thereby simplifying the preparation process. The second redundant electrode 430 located in the second opening 252 is retained, and the second redundant electrode 430 is electrically connected to the isolation structure 200, so that the second redundant electrode 430 has a fixed potential, which can improve the mutual influence between the electrical signal of the second redundant electrode 430 close to the substrate 100 and the electrical signal of the second redundant electrode 430 far from the substrate 100, thereby playing a role in signal shielding.

[0138] Optionally, the first electrode 410 and the second redundant electrode 430 corresponding to the third light-emitting unit 313 are prepared simultaneously to simplify the preparation process.

[0139] 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 .

[0140] 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.

[0141] 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.

[0142] In some optional embodiments, the display panel 10 further includes: a first encapsulation layer 500 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 corresponding isolation opening 240 .

[0143] 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.

[0144] like Fig.10As shown, optionally, the first encapsulation layer 500 also includes a first encapsulation unit 511 located in the first opening 251. When preparing the first encapsulation layer 500, the portion located in the first opening 251 is retained to form the first encapsulation unit 511, and there is no need to pattern and remove the first encapsulation unit 511, thereby simplifying the preparation process. When the first encapsulation unit 511 and the encapsulation portion 510 corresponding to the first light-emitting unit 311 are prepared synchronously, the first encapsulation unit 511 and the encapsulation portion 510 corresponding to the adjacent first light-emitting unit 311 can be disconnected or continuous, and the first encapsulation unit 511 and the encapsulation portion 510 corresponding to the adjacent second light-emitting unit 312 and the third light-emitting unit 313 are disconnected. Optionally, the first encapsulation unit 511 and the encapsulation portion 510 of the first light-emitting unit 311 are continuous and covered with the first redundant unit 320 and the first redundant electrode 420 on the isolation structure 200.

[0145] like Fig.11 As shown, optionally, the first encapsulation layer 500 also includes a second encapsulation unit 512 located in the second opening 252. When preparing the first encapsulation layer 500, the portion located in the second opening 252 is retained to form the second encapsulation unit 512, and there is no need to pattern and remove the second encapsulation unit 512, thereby simplifying the preparation process. When the second encapsulation unit 512 is prepared synchronously with the encapsulation portion 510 corresponding to the third light-emitting unit 313, the second encapsulation unit 512 and the encapsulation portion 510 corresponding to the adjacent third light-emitting unit 313 can be disconnected or continuous, and the second encapsulation unit 512 and the encapsulation portion 510 corresponding to the adjacent second light-emitting unit 312 and the first light-emitting unit 311 are disconnected. Optionally, the second encapsulation unit 512 and the encapsulation portion 510 of the third light-emitting unit 313 are continuous and covered with the second redundant unit 320 and the second redundant electrode 430 on the isolation structure 200.

[0146] Optionally, the material of the first encapsulation layer 500 includes an inorganic material. The inorganic material has good density and good barrier properties against water vapor and oxygen.

[0147] Optionally, the display panel 10 also includes: a second encapsulation layer, located on the side of the first encapsulation layer 500 away from the substrate 100; a third encapsulation layer, located on the side of the second encapsulation layer away from the substrate 100. The display panel 10 adopts three-layer encapsulation, has better encapsulation performance, and reduces the possibility of water and oxygen intrusion.

[0148] Optionally, the material of the second encapsulation layer includes organic material.

[0149] Optionally, the material of the third encapsulation layer includes inorganic material. The first encapsulation layer 500, the second encapsulation layer and the third encapsulation layer are encapsulated with inorganic material, organic material and inorganic material respectively to form a TFE (Thin Film Encapsulation, TFE) thin film encapsulation structure to further improve the encapsulation performance.

[0150] like Fig. 9 As shown, in some optional embodiments, the isolation structure 200 protrudes toward the isolation opening 240 where the third light emitting unit 313 is located to form a protruding portion 201 .

[0151] Optionally, the orthographic projection of the via hole 120 corresponding to the third light-emitting unit 313 on the substrate 100 is located within the orthographic projection of the protrusion 201 on the substrate 100 .

[0152] In these optional embodiments, the setting of the protrusion 201 enables the via 120 corresponding to the third light-emitting unit 313 to be set in the area where the protrusion 201 is located, which is convenient for reducing the distance between the third light-emitting unit 313 and other light-emitting units 310, thereby further increasing the aperture ratio of each light-emitting unit 310 and improving the display effect.

[0153] In some optional embodiments, the display panel 10 further includes: a pixel definition layer 600, located on one side of the substrate 100, the pixel definition layer 600 includes a pixel defining portion 610 and a plurality of pixel openings 620 formed by the pixel defining portion 610, and the pixel openings 620 are connected to the corresponding isolation openings 240.

[0154] 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.

[0155] See also Fig.12 , Fig.12 FIG. 4 is a partial top view of a display panel in yet another embodiment.

[0156] like Fig.12 As shown, in some optional embodiments, the pixel defining portion 610 protrudes toward the isolation opening 240 corresponding to the third light emitting unit 313 to form an extension portion 611 .

[0157] Optionally, the orthographic projection of the via hole 120 corresponding to the third light-emitting unit 313 on the substrate 100 is located within the orthographic projection of the extension portion 611 on the substrate 100 .

[0158] In these optional embodiments, the setting of the extension portion 611 enables the via hole 120 corresponding to the third light-emitting unit 313 to be set in the area where the extension portion 611 is located, which facilitates reducing the size of the pixel defining portion 610 between the third light-emitting unit 313 and other light-emitting units 310, thereby further increasing the aperture ratio of each light-emitting unit 310 and improving the display effect.

[0159] In some optional embodiments, the isolation structure 200 includes a first layer 210 and a second layer 220 located on a side of the first layer 210 facing away from the substrate 100 , and an orthographic projection of the first layer 210 on the substrate 100 is located within an orthographic projection of the second layer 220 on the substrate 100 .

[0160] In these 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. 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. The second layer 220 covers the surface of the first layer 210 close to the second layer 220. At this time, the first layer 210 is recessed relative to the second layer 220 in a direction away from the isolation opening 240. When preparing the light-emitting layer 300, 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.

[0161] 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.

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

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

[0164] In some optional embodiments, 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.

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

[0166] See also Fig.13 , Fig.13 is a partial cross-sectional view of a display panel in yet another embodiment.

[0167] like Fig.13 As shown, in some optional embodiments, the isolation structure 200 further includes a third layer 230 located on the side of the first layer 210 facing the substrate 100 , and the orthographic projection of the first layer 210 on the substrate 100 is located within the orthographic projection of the third layer 230 on the substrate 100 .

[0168] Due to the etching, the waste generated by the etching is easy to enter other positions of the display panel 10, thereby causing adverse effects. After the third layer 230 is set, the first layer 210 can be well attached to the third layer 230, and the generated etching waste falls on the third layer 230, which is easy to clean.

[0169] Optionally, the 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). The light emitting unit 310 includes only at least one of the electron injection layer (EIL), the electron transport layer (ETL), the light emitting material layer, the hole injection layer (HIL) and the hole transport layer (HTL), and does not include structures such as the first electrode 410 and the pixel electrode 630.

[0170] like Figures 1 to 13As shown, the second embodiment of the present application provides a display panel 10, and the display panel 10 also includes: a substrate 100, including a metal layer 130 and a planarization layer 110 arranged on one side of the metal layer 130, and a plurality of via holes 120 are opened on the planarization layer 110; a pixel electrode 630, located on a side of the planarization layer 110 away from the metal layer 130, a plurality of pixel electrodes 630 are arranged and arranged at intervals, at least a portion of the pixel electrode 630 is located in the corresponding via hole 120 and is electrically connected to the metal layer 130; an isolation structure 200, located on a side of the pixel electrode 630 away from the substrate 100, and the isolation structure 200 encloses a plurality of isolation openings 240 and a plurality of light-transmitting openings 250 , at least part of the pixel electrode 630 is exposed by the corresponding isolation opening 240; the light-emitting layer 300 is located on one side of the substrate 100, the light-emitting layer 300 includes a light-emitting unit 310 located at the isolation opening 240, the light-emitting unit 310 includes a first light-emitting unit 311 and a second light-emitting unit 312, the light-transmitting opening 250 includes a first opening 251, the first opening 251 is located between the first light-emitting unit 311 and the second light-emitting unit 312, and the orthographic projection of the via 120 corresponding to at least one of the first light-emitting unit 311 and the second light-emitting unit 312 corresponding to the first opening 251 on the substrate 100 and the orthographic projection of the same first opening 251 on the substrate 100 at least partially overlap.

[0171] According to the display panel 10 of the embodiment of the present application, the display panel 10 includes a substrate 100, a pixel electrode 630, 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, which is difficult to connect, and thus breaks. The light-emitting layer 300 breaks to form light-emitting units 310 that are disconnected from each other and located in the isolation opening 240, 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 pixel electrode 630 is connected to the metal layer 130 through the via 120 on the planarization layer 110, so that the metal layer 130 controls the signal of the pixel electrode 630, and the pixel electrode 630 is exposed by the isolation opening 240, so that the pixel electrode 630 can contact the light-emitting unit 310, so as to serve as the electrode of the light-emitting unit 310 and control the light emission of the light-emitting unit 310. The via hole 120 of the pixel electrode 630 corresponding to at least one of the first light-emitting unit 311 and the second light-emitting unit 312 corresponding to the first opening 251 is set in the area where the same first opening 251 of the first light-emitting unit 311 and the second light-emitting unit 312 is located, so that the distance between the first light-emitting unit 311 and the second light-emitting unit 312 and other light-emitting units 310 on the side where the via hole 120 of the pixel electrode 630 is not set can be reduced, thereby increasing the area of ​​the light-emitting unit 310, so as to improve the aperture ratio and display effect of the display panel 10, thereby improving the performance of the OLED display product.

[0172] In this embodiment, other structures may refer to the aforementioned related descriptions and will not be described in detail here.

[0173] 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.

[0174] 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.

[0175] 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.

[0176] 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 further includes: A substrate, comprising a metal layer and a planarization layer disposed on one side of the metal layer, wherein the planarization layer is provided with a plurality of via holes; A pixel electrode, located on a side of the planarization layer away from the metal layer, wherein a plurality of pixel electrodes are provided and are arranged at intervals, and at least a portion of the pixel electrode is located in the corresponding via hole and is electrically connected to the metal layer; An isolation structure, located at a side of the pixel electrode away from the substrate, the isolation structure encloses a plurality of isolation openings and a plurality of light-transmitting openings, and at least a portion of the pixel electrode is exposed from the corresponding isolation opening; A light-emitting layer is located on one side of the substrate, the light-emitting layer includes a light-emitting unit located corresponding to the isolation opening, the light-emitting unit includes a first light-emitting unit and a second light-emitting unit, the light-transmitting opening includes a first opening, the first opening is located between the first light-emitting unit and the second light-emitting unit, and the via hole corresponding to at least one of the first light-emitting unit and the second light-emitting unit corresponding to the first opening is also located between the first light-emitting unit and the second light-emitting unit.

2. The display panel according to claim 1, characterized in that: The via holes corresponding to the first light emitting unit and the second light emitting unit corresponding to the first opening are both located between the first light emitting unit and the second light emitting unit.

3. The display panel according to claim 1, characterized in that: The orthographic projection of the via hole corresponding to at least one of the first light-emitting unit and the second light-emitting unit on the substrate and the orthographic projection of the corresponding first opening on the substrate at least partially overlap; Preferably, the orthographic projections of the corresponding via holes in the first light-emitting unit and the second light-emitting unit on the substrate and the orthographic projections of the corresponding first openings on the substrate at least partially overlap; Preferably, the orthographic projection of the via hole corresponding to at least one of the first light-emitting unit and the second light-emitting unit on the substrate is located within the orthographic projection of the corresponding first opening on the substrate.

4. The display panel according to claim 1, characterized in that: The light-emitting unit further includes a third light-emitting unit, and the light-transmitting opening further includes a second opening, and the second opening is located between two adjacent third light-emitting units.

5. The display panel according to claim 4, characterized in that: The first light emitting units and the second light emitting units are alternately arranged along a first direction to form a first pixel column, a plurality of the third light emitting units are arranged along the first direction to form a second pixel column, the first pixel column and the second pixel column are alternately arranged along a second direction, and the first direction and the second direction intersect; Preferably, the orthographic projection area of ​​the third light emitting unit on the substrate is greater than or equal to the orthographic projection area of ​​the first light emitting unit on the substrate, and / or the orthographic projection area of ​​the third light emitting unit on the substrate is greater than or equal to the orthographic projection area of ​​the second light emitting unit on the substrate; Preferably, an orthographic projection area of ​​the second opening on the substrate is larger than an orthographic projection area of ​​the first opening on the substrate.

6. The display panel according to claim 5, characterized in that: The display panel includes a plurality of pixel units arranged in an array, wherein the pixel units include at least one of the first light emitting units, at least one of the second light emitting units, and at least one of the third light emitting units; Preferably, the pixel unit includes one first light emitting unit, one second light emitting unit and one third light emitting unit; Preferably, in one of the pixel units, the adjacent first light emitting unit, the second light emitting unit and the third light emitting unit are arranged side by side along the second direction; Preferably, in one of the pixel units, the orthographic projection of the third light-emitting unit along the second direction at least partially overlaps with the orthographic projection of the first light-emitting unit along the second direction, and the orthographic projection of the third light-emitting unit along the second direction at least partially overlaps with the orthographic projection of the second light-emitting unit along the second direction; Preferably, one pixel unit is correspondingly provided with one first opening and one second opening.

7. The display panel according to claim 6, characterized in that: Located in one of the pixel units, the via hole corresponding to the third light-emitting unit is located on a side of the third light-emitting unit away from the first light-emitting unit.

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 at the corresponding isolation opening, the first electrode being electrically connected to the isolation structure; Preferably, the light-emitting layer further comprises a first redundant unit located in the first opening; Preferably, the first electrode layer further comprises a first redundant electrode located in the first opening; Preferably, the light-emitting layer further comprises a second redundant unit located in the second opening; Preferably, the first electrode layer further comprises a second redundant electrode located in the second opening; 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.

9. The display panel according to claim 4, characterized in that: The display panel further includes: A first encapsulation layer, located on a side of the light-emitting layer away from the substrate, the first encapsulation layer comprising an encapsulation portion located in the corresponding isolation opening; Preferably, the first packaging layer further includes a first packaging unit located in the first opening; Preferably, the first packaging layer further includes a second packaging unit located in the second opening; 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, the material of the second encapsulation layer includes organic material; Preferably, the material of the third encapsulation layer includes inorganic material.

10. The display panel according to claim 4, characterized in that: The isolation structure protrudes toward the isolation opening where the third light emitting unit is located to form a protruding portion; Preferably, the orthographic projection of the via hole corresponding to the third light-emitting unit on the substrate is located within the orthographic projection of the protrusion on the substrate.

11. The display panel according to claim 4, characterized in that: The display panel further includes: A pixel definition layer, located on one side of the substrate, the pixel definition layer comprising a pixel definition portion and a plurality of pixel openings formed by the pixel definition portion, the pixel openings being connected to the corresponding isolation openings; Preferably, the pixel defining portion protrudes toward the isolation opening corresponding to the third light emitting unit to form an extension portion; Preferably, the orthographic projection of the via hole corresponding to the third light-emitting unit on the substrate is located within the orthographic projection of the extension portion on the substrate.

12. The display panel according to claim 1, 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 first layer comprises 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.

13. A display panel, characterized in that: The display panel further includes: A substrate, comprising a metal layer and a planarization layer disposed on one side of the metal layer, wherein the planarization layer is provided with a plurality of via holes; A pixel electrode, located on a side of the planarization layer away from the metal layer, wherein a plurality of pixel electrodes are provided and are arranged at intervals, and at least a portion of the pixel electrode is located in the corresponding via hole and is electrically connected to the metal layer; An isolation structure, located on a side of the pixel electrode away from the pixel electrode, the isolation structure encloses a plurality of isolation openings and a plurality of light-transmitting openings, and at least a portion of the pixel electrode is exposed from the corresponding isolation opening; A light-emitting layer is located on one side of the substrate, the light-emitting layer includes a light-emitting unit located corresponding to the isolation opening, the light-emitting unit includes a first light-emitting unit and a second light-emitting unit, the light-transmitting opening includes a first opening, the first opening is located between the first light-emitting unit and the second light-emitting unit, and the orthographic projection of the via hole corresponding to at least one of the first light-emitting unit and the second light-emitting unit corresponding to the first opening on the substrate and the orthographic projection of the same first opening on the substrate at least partially overlap.

14. The display panel according to claim 1, characterized in that: The first opening is located between the first light-emitting unit and the second light-emitting unit, and the orthographic projection of the via holes corresponding to the first light-emitting unit and the second light-emitting unit corresponding to the first opening on the substrate and the orthographic projection of the same first opening on the substrate at least partially overlap; Preferably, the orthographic projection of the via hole corresponding to at least one of the first light-emitting unit and the second light-emitting unit on the substrate is located within the orthographic projection of the corresponding first opening on the substrate; Preferably, the light-emitting unit further includes a third light-emitting unit, the light-transmitting opening further includes a second opening, and the second opening is located between two adjacent third light-emitting units; Preferably, the display panel further comprises: 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 corresponding isolation opening, the first electrode being electrically connected to the isolation structure; Preferably, the light-emitting layer further comprises a first redundant unit located in the first opening; Preferably, the first electrode layer further comprises a first redundant electrode located in the first opening; Preferably, the light-emitting layer further comprises a second redundant unit located in the second opening; Preferably, the first electrode layer further comprises a second redundant electrode located in the second opening; 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.

15. A display device, characterized in that: A display panel comprising any one of claims 1 to 14.

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