Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel includes: a substrate; the isolation structure is arranged on one side of the substrate and is enclosed to form an isolation opening; the light-emitting device is arranged on one side of the substrate and at least partially located in the isolation opening; the functional structure is arranged on the side, away from the substrate, of the light emitting device, the functional structure comprises a first functional layer and a second functional layer, the refractive index of the first functional layer is larger than that of the second functional layer, and the first functional layer and the second functional layer are alternately stacked in the thickness direction of the display panel.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and in particular, relates 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 the advantages of high image quality, power saving, thin body and wide application range, and are widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc., becoming the mainstream in display devices. In the preparation process of traditional display panels, the graphicization of luminous pixels is usually achieved through a fine mask (FMM). FMM technology is mature and has rich experience in mass production. However, FMM technology also has problems such as limited accuracy, high development cost, and long development cycle. Maskless technology eliminates the limitations of traditional OLED processes on display size, resolution and other screen performance, and has the advantages of high performance, full-domain size, and agile delivery. Patents CN118251982A, CN115666161A, CN116648095A, CN117062489A, CN117580403A, CN118678743A, CN118660490A, CN118678724A, CN118678806A, CN118742084A, and CN118946184A record relevant contents of the maskless technology for reference.

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

[0004] Embodiments of the present application provide a display panel and a display device, aiming to improve the performance of the display panel.

[0005] An embodiment of the first aspect of the present application provides a display panel, comprising: a substrate; an isolation structure, which is arranged on one side of the substrate and encloses an isolation opening; a light-emitting device, which is arranged on one side of the substrate and is at least partially located in the isolation opening; a functional structure, which is arranged on a side of the light-emitting device away from the substrate, the functional structure comprising a first functional layer and a second functional layer, the refractive index of the first functional layer is greater than the refractive index of the second functional layer, and the first functional layer and the second functional layer are alternately stacked in the thickness direction of the display panel.

[0006] According to an implementation scheme of the first aspect of the present application, the isolation opening includes a first opening and a second opening, the light-emitting device includes a first type of device arranged corresponding to the first opening and a second type of device arranged corresponding to the second opening, the light-emitting colors of the first type of device and the second type of device are different, and the functional structure includes a first type of structure arranged on the side of the first type of device away from the substrate and a second type of structure arranged on the side of the second type of device away from the substrate, wherein the total number of first functional layers and second functional layers in a single first type structure is s1, the total number of first functional layers and second functional layers in a single second type structure is s2, s1≠s2, and / or the difference between the refractive index of the first functional layer and the refractive index of the second functional layer in the first type structure is a1, and the difference between the refractive index of the first functional layer and the refractive index of the second functional layer in the second type structure is a2, a1≠a2.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, 2≤s1≤20, and / or, 2≤s2≤20.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, the wavelength of the luminous color of the first type of device is w1, and the wavelength of the luminous color of the second type of device is w2, w1>w2, wherein s1>s2, and / or a1>a2.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the luminescent color of the first type of device is red, and the luminescent color of the second type of device is blue.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the first functional layer in the first type of structure is different from that of the first functional layer in the second type of structure, and / or the material of the second functional layer in the first type of structure is different from that of the second functional layer in the second type of structure.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the thickness of the first functional layer in the first type of structure is d1, the thickness of the first functional layer in the second type of structure is d3, d1≠d3, and / or the thickness of the second functional layer in the first type of structure is d2, the thickness of the second functional layer in the second type of structure is d4, d2≠d4.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, the wavelength of the luminous color of the first type of device is w1, and the wavelength of the luminous color of the second type of device is w2, wherein the refractive index of the first functional layer in the first type of structure is n1, n1*d1*4=w1, and / or, the refractive index of the second functional layer in the first type of structure is n2, n2*d2*4=w1, and / or, the refractive index of the first functional layer in the second type of structure is n3, n3*d3*4=w2, and / or, the refractive index of the second functional layer in the second type of structure is n4, n4*d4*4=w2.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation opening includes a third opening, the light-emitting device includes a third type of device arranged corresponding to the third opening, the light-emitting colors of the first type of device, the second type of device and the third type of device are different from each other, the functional structure includes a third type of structure arranged on the side of the third type of device away from the substrate, the wavelength of the light-emitting color of the first type of device is w1, the wavelength of the light-emitting color of the second type of device is w2, and the wavelength of the light-emitting color of the third type of device is w3, w2<w3<w1, wherein the total number of first functional layers and second functional layers in a single third type structure is s3, s2≤s3≤s1, and / or the difference between the refractive index of the first functional layer and the refractive index of the second functional layer in the third type structure is a3, a2≤a3≤a1.

[0014] According to any of the aforementioned implementations of the first aspect of the present application, 2≤s3≤20.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the luminescent color of the first type of device is red, the luminescent color of the second type of device is blue, and the luminescent color of the third type of device is green.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, the thickness of the first functional layer in the third type of structure is d5, and the thickness of the second functional layer in the third type of structure is d6, wherein the thickness of the first functional layer in the first type of structure is d1, and the thickness of the second functional layer in the first type of structure is d2, d5=d1, d6=d2, or, the thickness of the first functional layer in the second type of structure is d3, and the thickness of the second functional layer in the second type of structure is d4, d5=d3, d6=d4.

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, the refractive index of the first functional layer in the third type of structure is n5, the thickness of the first functional layer in the third type of structure is d5, n5*d5*4=w3, and / or, the refractive index of the second functional layer in the third type of structure is n6, the thickness of the second functional layer in the third type of structure is d6, n6*d6*4=w3.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the film layer in the functional structure located at the edge of the functional structure facing the light-emitting device is the first functional layer.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, the refractive index of the first functional layer is not less than 1.6 and not more than 2.3, and / or the refractive index of the second functional layer is not less than 1.3 and not more than 1.8.

[0020] According to any of the aforementioned embodiments of the first aspect of the present application, the functional structure is at least partially located in the isolation opening.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, there are multiple light-emitting devices, and functional structures corresponding to adjacent light-emitting devices are arranged at intervals.

[0022] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure includes a first isolation portion and a second isolation portion located on a side of the first isolation portion away from the substrate, and the second isolation portion is arranged to protrude from the first isolation portion toward the isolation opening.

[0023] According to any of the aforementioned embodiments of the first aspect of the present application, the light-emitting device includes a first electrode, a light-emitting layer and a second electrode stacked in sequence in a direction away from the substrate, the material of the isolation structure includes a conductive material, and the second electrode is connected to the isolation structure.

[0024] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure further includes a conductive portion located on the side of the first isolation portion facing the substrate, the conductive portion protrudes from the first isolation portion toward the isolation opening, and the second electrode is connected to the conductive portion.

[0025] According to any of the aforementioned implementations of the first aspect of the present application, the display panel further includes an encapsulation layer disposed on a side of the functional structure facing away from the substrate.

[0026] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the functional structure includes a vapor-deposited material.

[0027] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the functional structure includes an organic material.

[0028] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the functional structure includes an organic transparent material.

[0029] According to any of the aforementioned implementations of the first aspect of the present application, at least part of the functional structure is reused as at least part of the encapsulation layer.

[0030] According to any of the aforementioned embodiments of the first aspect of the present application, the functional structure includes an encapsulation portion that is reused as at least a portion of the encapsulation layer and a functional portion located between the encapsulation portion and the light-emitting device, and the material of the functional portion includes a vapor-deposition material.

[0031] According to any of the aforementioned embodiments of the first aspect of the present application, the encapsulation layer includes a first encapsulation layer, a second encapsulation layer located on the side of the first encapsulation layer away from the substrate, and a third encapsulation layer located on the side of the second encapsulation layer away from the substrate, and at least part of the functional structure is reused as at least one of the first encapsulation layer, the second encapsulation layer and the third encapsulation layer.

[0032] According to any of the aforementioned implementations of the first aspect of the present application, the functional structure includes a packaging portion reused as the first packaging layer, and a material of the packaging portion includes a chemical vapor deposition material.

[0033] According to any of the aforementioned implementations of the first aspect of the present application, the material of the encapsulation portion includes an inorganic material.

[0034] According to any of the aforementioned implementations of the first aspect of the present application, the material of the encapsulation portion includes an inorganic transparent material.

[0035] According to any of the aforementioned implementations of the first aspect of the present application, the material of the packaging portion includes at least one of silicon nitride, silicon oxynitride and silicon oxide.

[0036] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the first functional layer in the encapsulation portion includes silicon nitride or silicon nitride oxide, and the material of the second functional layer in the encapsulation portion includes silicon oxide.

[0037] According to any of the aforementioned embodiments of the first aspect of the present application, the functional structure includes an encapsulation portion reused as a first encapsulation layer, the encapsulation portion is at least partially located in the isolation opening, and the encapsulation portion covers the side wall of the isolation structure facing the isolation opening.

[0038] According to any of the aforementioned implementations of the first aspect of the present application, part of the encapsulation portion is located on a side of the isolation structure facing away from the substrate.

[0039] According to any of the aforementioned implementations of the first aspect of the present application, the packaging portion located on a side of the isolation structure facing away from the substrate is spaced apart from the isolation structure.

[0040] An embodiment of a second aspect of the present application provides a display device, which includes a display panel according to any of the above embodiments.

[0041] In a display panel provided in an embodiment of the present application, the display panel includes a substrate, an isolation structure, a light-emitting device, and a functional structure. The isolation structure is arranged on one side of the substrate and encloses an isolation opening, the light-emitting device is arranged on one side of the substrate and at least partially located in the isolation opening, and the isolation structure can be used to participate in dividing the sub-pixels of the display panel.

[0042] The functional structure is arranged on the side of the light-emitting device away from the substrate, and the functional structure includes a first functional layer and a second functional layer. The refractive index of the first functional layer is greater than the refractive index of the second functional layer. By arranging the first functional layer and the second functional layer to be alternately stacked in the thickness direction of the display panel, the functional structure can form a distributed Bragg reflector (Distributed Bragg Reflector, DBR), so that the functional structure can be used to improve the luminous efficiency of the display panel, and can also better adjust the viewing angle color deviation and / or viewing angle brightness attenuation of the light-emitting device, so that the display panel can have a larger color deviation and / or brightness attenuation at a large viewing angle, so that the display panel can have a better display effect at a positive viewing angle and can also improve the anti-peeping effect of the display panel, thereby better improving the performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 is a partial schematic diagram of an isolation structure provided in an embodiment of the present application;

[0045] Figure 2 is a partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0046] Figure 3 is a partial cross-sectional view of a display panel provided by another embodiment of the present application;

[0047] Figure 4 is a partial cross-sectional view of a display panel provided in yet another embodiment of the present application;

[0048] Figure 5 is a partial cross-sectional view of a display panel provided in yet another embodiment of the present application;

[0049] Figure 6 is a partial cross-sectional view of a display panel provided in another embodiment of the present application;

[0050] Figures 7 to 9 is a schematic diagram of a manufacturing process of a method for manufacturing a display panel provided in an embodiment of the present application;

[0051] Fig.10 is a partial cross-sectional view of a display panel provided in another embodiment of the present application;

[0052] Figures 11 to 13is a schematic diagram of a manufacturing process of a method for manufacturing a display panel provided in another embodiment of the present application;

[0053] Fig.14 is a partial cross-sectional view of a display panel provided in another embodiment of the present application;

[0054] Figures 15 to 17 It is a schematic diagram of a preparation process of a method for preparing a display panel provided in yet another embodiment of the present application.

[0055] Description of reference numerals:

[0056] 10. Display panel;

[0057] 100, substrate; 110, substrate; 120, first insulating layer; 130, second insulating layer; 140, third insulating layer; 150, driving circuit; 151, transistor; 151a, gate; 151b, source and drain; 152, storage capacitor; 152a, first plate; 152b, second plate;

[0058] 200, pixel definition layer; 210, pixel definition portion; 210a, pixel opening;

[0059] 300, isolation structure; 301, isolation opening; 301a, first opening; 301b, second opening; 301c, third opening; 310, first isolation part; 320, second isolation part; 330, conductive part;

[0060] 400, light emitting device; 401, first type device; 402, second type device; 403, third type device; 410, first electrode; 420, light emitting layer; 430, second electrode;

[0061] 500, encapsulation layer; 510, first encapsulation layer; 511, first unit; 512, second unit; 514, third unit; 520, second encapsulation layer; 530, third encapsulation layer;

[0062] 600, functional structure; 600a, packaging unit; 600b, functional unit; 601, first type of structure; 602, second type of structure; 603, third type of structure; 610, first functional layer; 620, second functional layer;

[0063] Z, thickness direction. DETAILED DESCRIPTION

[0064] 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.

[0065] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0066] 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.

[0067] 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.

[0068] Figure 1 is a partial schematic diagram of an isolation structure 300 provided in an embodiment of the present application, Figure 2 1 is a partial cross-sectional view of a display panel 10 provided in an embodiment of the present application. The Z direction in the figure is the thickness direction Z of the display panel 10.

[0069] like Figure 1 and Figure 2As shown, an embodiment of the first aspect of the present application provides a display panel 10, including: a substrate 100; an isolation structure 300, which is arranged on one side of the substrate 100 and encloses an isolation opening 301; a light-emitting device 400, which is arranged on one side of the substrate 100 and is at least partially located in the isolation opening 301; a functional structure 600, which is arranged on the side of the light-emitting device 400 away from the substrate 100, and the functional structure 600 includes a first functional layer 610 and a second functional layer 620, the refractive index of the first functional layer 610 is greater than the refractive index of the second functional layer 620, and the first functional layer 610 and the second functional layer 620 are alternately stacked in the thickness direction Z of the display panel 10.

[0070] In a display panel 10 provided in an embodiment of the present application, the display panel 10 includes a substrate 100 , an isolation structure 300 , a light emitting device 400 and a functional structure 600 .

[0071] Optionally, there are many ways to set the substrate 100. For example, the substrate 100 may include a substrate 110 and a driving circuit 150 disposed on the side of the substrate 110 facing the light-emitting device 400. Exemplarily, the driving circuit 150 may include a transistor 151, a storage capacitor 152, and a driving signal line for connecting various devices. Among them, the transistor 151 may include a semiconductor, a gate 151a, and a source and drain 151b. The storage capacitor 152 may include a first plate 152a and a second plate 152b.

[0072] Optionally, the substrate 100 may further include a first insulating layer 120 , a second insulating layer 130 and a third insulating layer 140 which are disposed on one side of the substrate 110 and are sequentially stacked in a direction away from the substrate 110 .

[0073] As an example, the gate 151a and the first electrode 152a can be located on the side of the first insulating layer 120 facing the substrate 110, the second electrode 152b can be located between the first insulating layer 120 and the second insulating layer 130, and the source and drain 151b can be located between the second insulating layer 130 and the third insulating layer 140.

[0074] The light emitting device 400 may be used to participate in realizing the light emitting display of the display panel 10 .

[0075] Optionally, the light emitting device 400 includes a first electrode 410 , a light emitting layer 420 and a second electrode 430 which are sequentially stacked in a direction away from the substrate 100 .

[0076] Optionally, the light-emitting layer 420 may include a hole injection layer (HIL), a hole transport layer (HTL), a light-emitting structure, an electron injection layer (EIL) and an electron transport layer (ETL).

[0077] Optionally, the first electrode 410 and the second electrode 430 may be used as pixel electrodes of the display panel 10, one of the first electrode 410 and the second electrode 430 may be used as an anode, and the other may be used as a cathode to drive the light-emitting layer 420 to emit light. In the embodiment of the present application, the first electrode 410 is used as the anode of the display panel 10, and the second electrode 430 is used as the cathode of the display panel 10 for illustration.

[0078] The isolation structure 300 is disposed on one side of the substrate 100 and encloses an isolation opening 301 . The light emitting device 400 is disposed on one side of the substrate 100 and at least partially located in the isolation opening 301 . The isolation structure 300 can be used to divide the sub-pixels of the display panel 10 .

[0079] Optionally, the isolation structure 300 includes a first isolation portion 310 and a second isolation portion 320 located on a side of the first isolation portion 310 facing away from the substrate 100 , and the second isolation portion 320 is disposed protruding from the first isolation portion 310 toward the isolation opening 301 .

[0080] By arranging the second isolation portion 320 to protrude from the first isolation portion 310 toward the isolation opening 301, when the light-emitting layer 420 and the second electrode 430 of the display panel 10 are evaporated, the second isolation portion 320 can block at least a portion of the material used to prepare the light-emitting layer 420 and the second electrode 430, so as to separate the light-emitting layer 420 and the second electrode 430 between adjacent sub-pixels, and can facilitate the formation of a plurality of spaced light-emitting layers 420 and second electrodes 430, so that when the light-emitting layer 420 and the second electrode 430 of the display panel 10 are evaporated, there is no need to set a mask with high precision, for example, when the light-emitting layer 420 and the second electrode 430 are evaporated, there is no need to set a high-precision metal mask (Fine Metal Mask, FMM), thereby effectively reducing the production cost of the display panel 10.

[0081] Optionally, there may be a plurality of isolation openings 301 . For example, the isolation structure 300 may be in a grid shape, and the hollow regions in the grid-shaped isolation structure 300 may form the isolation openings 301 .

[0082] Optionally, the number of light-emitting devices 400 may be multiple, and a single light-emitting device 400 may be arranged corresponding to a single isolation opening 301. For example, a single light-emitting device 400 may be arranged corresponding to a single isolation opening 301, which may mean that the orthographic projection of the single light-emitting device 400 on the substrate 100 may be located within the orthographic projection of the single isolation opening 301 on the substrate 100. The orthographic projection of the isolation opening 301 on the substrate 100 may refer to the orthographic projection of the inner wall of the isolation opening 301 on the substrate 100 and the projection area enclosed by the orthographic projection of the inner wall of the isolation opening 301 on the substrate 100.

[0083] Optionally, the material of the isolation structure 300 includes a conductive material, and the second electrode 430 is connected to the isolation structure 300. For example, the material of the first isolation portion 310 may include a conductive material, and the second electrodes 430 of adjacent light-emitting devices 400 may be electrically connected through the isolation structure 300, that is, the second electrodes 430 of adjacent light-emitting devices 400 may be connected to each other through the isolation structure 300 to form a surface electrode, so as to facilitate the control of the second electrodes 430 in the display panel 10.

[0084] Optionally, the isolation structure 300 further includes a conductive portion 330 located on the side of the first isolation portion 310 facing the substrate 100 . The conductive portion 330 is disposed protruding from the first isolation portion 310 toward the isolation opening 301 , and the second electrode 430 is connected to the conductive portion 330 .

[0085] By arranging the conductive portion 330 to protrude from the first isolation portion 310 toward the isolation opening 301 , the overlap between the second electrode 430 and the conductive portion 330 can be facilitated and the overlap area between the second electrode 430 and the conductive portion 330 can be improved to reduce the resistance of the display panel 10 .

[0086] Optionally, the isolation opening 301 includes a first opening 301a and a second opening 301b, and the light-emitting device 400 includes a first type device 401 arranged corresponding to the first opening 301a and a second type device 402 arranged corresponding to the second opening 301b, and the light-emitting colors of the first type device 401 and the second type device 402 are different, so as to facilitate the color light-emitting display of the display panel 10.

[0087] Optionally, the first type device 401 is arranged corresponding to the first opening 301a, which may mean that the orthographic projection of a single first type device 401 on the substrate 100 may be located within the orthographic projection of a single first opening 301a on the substrate 100. Optionally, the second type device 402 is arranged corresponding to the second opening 301b, which may mean that the orthographic projection of a single second type device 402 on the substrate 100 may be located within the orthographic projection of a single second opening 301b on the substrate 100.

[0088] Optionally, the isolation opening 301 may further include a third opening 301c, and the light-emitting device 400 includes a third type device 403 arranged corresponding to the third opening 301c. The light-emitting colors of the first type device 401, the second type device 402 and the third type device 403 are different from each other, so as to further facilitate the color light-emitting display of the display panel 10.

[0089] Optionally, the third type device 403 is disposed corresponding to the third opening 301 c , which may mean that the orthographic projection of a single third type device 403 on the substrate 100 may be located within the orthographic projection of a single third opening 301 c on the substrate 100 .

[0090] Optionally, the display panel 10 may further include a pixel definition layer 200 disposed on the substrate 100, the pixel definition layer 200 includes a pixel defining portion 210 and a pixel opening 210a formed by the pixel defining portion 210, the pixel opening 210a is connected to the isolation opening 301, and the pixel definition layer 200 may also be used to participate in dividing the sub-pixels of the display panel 10.

[0091] Optionally, a portion of the structure of the light-emitting device 400 may be located in the pixel opening 210a, and another portion of the structure of the light-emitting device 400 may be located in the isolation opening 301. For example, the light-emitting layer 420 and the second electrode 430 of the light-emitting device 400 may extend from the pixel opening 210a to the isolation opening 301.

[0092] Optionally, there are many ways to set the relative position between the pixel defining portion 210 and the isolation structure 300, for example, Figure 2 As shown, the isolation structure 300 can be disposed on the side of the pixel defining portion 210 away from the substrate 100, that is, the isolation structure 300 can be directly disposed on the pixel defining portion 210. Or, for example, the pixel defining portion 210 can be provided with a receiving groove (not shown in the figure), and at least part of the isolation structure 300 can be located in the receiving groove, so that the isolation structure 300 is not likely to have an excessive height compared to the substrate 100, thereby being able to better reduce the thickness of the display panel 10. For ease of description, the following embodiments are described by taking the isolation structure 300 disposed on the side of the pixel defining portion 210 away from the substrate 100 as an example.

[0093] The functional structure 600 is disposed on a side of the light emitting device 400 that is away from the substrate 100. Optionally, the material of the functional structure 600 may include a transparent material to better reduce the shielding effect of the functional structure 600 on the light emitted by the light emitting device 400.

[0094] The functional structure 600 includes a first functional layer 610 and a second functional layer 620, and the refractive index of the first functional layer 610 is greater than the refractive index of the second functional layer 620. By arranging the first functional layer 610 and the second functional layer 620 to be alternately stacked in the thickness direction Z of the display panel 10, the functional structure 600 can form a distributed Bragg reflector, so that the functional structure 600 can be used to improve the luminous efficiency of the display panel 10, and can also better adjust the viewing angle color deviation and / or viewing angle brightness attenuation of the light-emitting device 400, so that the display panel 10 can have a larger color deviation and / or brightness attenuation at a large viewing angle, so that the display panel 10 can have a better display effect at a positive viewing angle and can also improve the anti-peeping effect of the display panel 10, thereby better improving the performance of the display panel 10.

[0095] Optionally, when a single functional structure 600 includes only one first functional layer 610 and a second functional layer 620, the first functional layer 610 and the second functional layer 620 are alternately stacked in the thickness direction Z of the display panel 10, which may refer to that the single first functional layer 610 is located on the side of the single second functional layer 620 away from the substrate 100, or that the single second functional layer 620 is located on the side of the single first functional layer 610 away from the substrate 100. When a single functional structure 600 includes at least two first functional layers 610, the first functional layer 610 and the second functional layer 620 are alternately stacked in the thickness direction Z of the display panel 10, which may refer to that the two adjacent first functional layers 610 are not in direct contact with each other, and the second functional layer 620 is located between the two adjacent first functional layers 610. Similarly, when a single functional structure 600 includes at least two second functional layers 620, the first functional layer 610 and the second functional layer 620 are alternately stacked in the thickness direction Z of the display panel 10, which may mean that there is no direct contact between two adjacent second functional layers 620, and the first functional layer 610 is located between two adjacent second functional layers 620.

[0096] Optionally, the refractive index of the first functional layer 610 is not less than 1.6 and not more than 2.3, and / or the refractive index of the second functional layer 620 is not less than 1.3 and not more than 1.8.

[0097] In this optional embodiment, by reasonably setting the refractive indices of the first functional layer 610 and the second functional layer 620, the display panel 10 has good luminous efficiency and the light-emitting device 400 can also have good viewing angle color deviation and / or viewing angle brightness attenuation, so that the display panel 10 can have a good display effect at a normal viewing angle and can also improve the anti-peeping effect of the display panel 10, thereby greatly improving the performance of the display panel 10.

[0098] In some optional embodiments, the functional structure 600 includes a first type of structure 601 arranged on the side of the first type of device 401 away from the substrate 100 and a second type of structure 602 arranged on the side of the second type of device 402 away from the substrate 100, so that the first type of structure 601 can be better adjusted according to the luminous display condition of the first type of device 401, so that the first type of structure 601 can be used to improve the luminous efficiency of the first type of device 401, and can also better adjust the viewing angle color deviation and / or viewing angle brightness attenuation of the first type of device 401, so that the first type of device 401 can have better color deviation and / or brightness attenuation at a wide viewing angle.

[0099] Similarly, the second type of structure 602 can be better adjusted according to the luminous display conditions of the second type of device 402, so that the second type of structure 602 can be used to improve the luminous efficiency of the second type of device 402, and can also better adjust the viewing angle color deviation and / or viewing angle brightness attenuation of the second type of device 402, so that the second type of device 402 can have better color deviation and / or brightness attenuation at a large viewing angle.

[0100] Optionally, the functional structure 600 includes a third type of structure 603 arranged on the side of the third type of device 403 facing away from the substrate 100, so that the third type of structure 603 can be better adjusted according to the luminous display condition of the third type of device 403, so that the third type of structure 603 can be used to improve the luminous efficiency of the third type of device 403, and can also better adjust the viewing angle color deviation and / or viewing angle brightness attenuation of the third type of device 403, so that the third type of device 403 can have better color deviation and / or brightness attenuation at a wide viewing angle.

[0101] In some embodiments of the present application, the total number of first functional layers 610 and second functional layers 620 in a single first-type structure 601 is s1, the total number of first functional layers 610 and second functional layers 620 in a single second-type structure 602 is s2, and the total number of first functional layers 610 and second functional layers 620 in a single third-type structure 603 is s3.

[0102] Optionally, 2≤s1≤20, and / or, 2≤s2≤20, and / or, 2≤s3≤20.

[0103] In some optional embodiments, such as Figure 2 As shown, s1=s2, that is, the total number of first functional layers 610 and second functional layers 620 in a single first-type structure 601 can be the same as the total number of first functional layers 610 and second functional layers 620 in a single second-type structure 602, so that the heights of the first-type structure 601 and the second-type structure 602 are the same or similar compared to the substrate 100, so that it is not easy for the first-type structure 601 and the second-type structure 602 to have too large a height difference, which can facilitate the formation and preparation of subsequent film layers.

[0104] Figure 3 is a partial cross-sectional view of a display panel 10 provided in another embodiment of the present application. Figure 4 It is a partial cross-sectional view of a display panel 10 provided in yet another embodiment of the present application.

[0105] In some other optional embodiments, Figure 3 and Figure 4 As shown, s1≠s2, that is, the total number of first functional layers 610 and second functional layers 620 in a single first-type structure 601 may be different from the total number of first functional layers 610 and second functional layers 620 in a single second-type structure 602.

[0106] For example, Figure 3 As shown, the total number of first functional layers 610 and second functional layers 620 in a single first-type structure 601 may be six, and the total number of first functional layers 610 and second functional layers 620 in a single second-type structure 602 may be four.

[0107] or exemplary, such as Figure 4 As shown, the total number of the first functional layer 610 and the second functional layer 620 in a single first-type structure 601 may be five, and the total number of the first functional layer 610 and the second functional layer 620 in a single second-type structure 602 may be four.

[0108] In these optional embodiments, by setting s1≠s2, the first type of structure 601 and the second type of structure 602 can have different effects on the visual color deviation and viewing angle brightness attenuation, so that the luminous efficiency of the first type of device 401 and the luminous efficiency of the second type of device 402 can be better adjusted respectively, and the visual color deviation and viewing angle brightness attenuation of the first type of device 401 and the visual color deviation and viewing angle brightness attenuation of the second type of device 402 can be better adjusted respectively, so that the display panel 10 as a whole can have a better display effect and a better anti-peeping effect.

[0109] Optionally, s1, s2 and s3 may be different from each other, that is, s1≠s2≠s3, so that the first type of structure 601, the second type of structure 602 and the third type of structure 603 have different effects on the visual color deviation and viewing angle brightness attenuation, so that the luminous efficiency of the first type of device 401, the luminous efficiency of the second type of device 402 and the luminous efficiency of the third type of device 403 can be better adjusted respectively, and the visual color deviation and viewing angle brightness attenuation of the first type of device 401, the visual color deviation and viewing angle brightness attenuation of the second type of device 402 and the visual color deviation and viewing angle brightness attenuation of the third type of device 403 can be better adjusted respectively, so that the display panel 10 as a whole can have a better display effect and a better anti-peeping effect. For example, Figure 3As shown, the total number of layers of the first functional layer 610 and the second functional layer 620 in a single first-type structure 601 can be six, the total number of layers of the first functional layer 610 and the second functional layer 620 in a single third-type structure 603 can be five, and the total number of layers of the first functional layer 610 and the second functional layer 620 in a single second-type structure 602 can be six.

[0110] Alternatively, s3 may be equal to any one of s1 and s2, for example, s3=s1 or s3=s2, or s1=s2=s3, so that the height of the third type structure 603 is the same or similar to that of the first type structure 601 and / or the second type structure 602 relative to the substrate 100, so that the third type structure 603 is not prone to have too large a height difference with the first type structure 601 and / or the second type structure 602, which can facilitate the formation and preparation of subsequent film layers. For example, Figure 4 As shown, the total number of first functional layers 610 and second functional layers 620 in a single first-type structure 601 may be five, and the total number of first functional layers 610 and second functional layers 620 in a single third-type structure 603 may be five, that is, s3=s1=5.

[0111] In some embodiments of the present application, the difference between the refractive index of the first functional layer 610 and the refractive index of the second functional layer 620 in the first type of structure 601 is a1, the difference between the refractive index of the first functional layer 610 and the refractive index of the second functional layer 620 in the second type of structure 602 is a2, and the difference between the refractive index of the first functional layer 610 and the refractive index of the second functional layer 620 in the third type of structure 603 is a3.

[0112] In some optional embodiments, a1=a2, that is, the difference between the refractive index of the first functional layer 610 and the refractive index of the second functional layer 620 in the first type structure 601 may be equal to the difference between the refractive index of the first functional layer 610 and the refractive index of the second functional layer 620 in the second type structure 602.

[0113] For example, a1=a2=0.54.

[0114] Optionally, the refractive index of the first functional layer 610 in the first type structure 601 may be equal to the refractive index of the first functional layer 610 in the second type structure 602, and the refractive index of the second functional layer 620 in the first type structure 601 may be equal to the refractive index of the second functional layer 620 in the second type structure 602. For example, the refractive index of the first functional layer 610 in the first type structure 601 and the refractive index of the first functional layer 610 in the second type structure 602 are both 2, and the refractive index of the second functional layer 620 in the first type structure 601 and the refractive index of the second functional layer 620 in the second type structure 602 are both 1.46.

[0115] In these optional embodiments, by setting a1=a2, the material of the first functional layer 610 in the first type of structure 601 can be the same as the material of the first functional layer 610 in the second type of structure 602, and the material of the second functional layer 620 in the first type of structure 601 can be the same as the material of the second functional layer 620 in the second type of structure 602, so that the preparation process of the first type of structure 601 can be similar to the preparation process of the second type of structure 602, which can facilitate improving the preparation efficiency of the display panel 10.

[0116] In some other optional embodiments, a1≠a2, that is, the difference between the refractive index of the first functional layer 610 and the refractive index of the second functional layer 620 in the first type of structure 601 may be different from the difference between the refractive index of the first functional layer 610 and the refractive index of the second functional layer 620 in the second type of structure 602.

[0117] Optionally, the refractive index of the first functional layer 610 in the first type of structure 601 may be different from the refractive index of the first functional layer 610 in the second type of structure 602, and / or the refractive index of the second functional layer 620 in the first type of structure 601 may be different from the refractive index of the second functional layer 620 in the second type of structure 602, so as to achieve a1≠a2.

[0118] Optionally, the materials of the first functional layer 610 in the first type of structure 601 and the first functional layer 610 in the second type of structure 602 are different, so as to achieve a refractive index of the first functional layer 610 in the first type of structure 601 that is different from the refractive index of the first functional layer 610 in the second type of structure 602, and / or, the materials of the second functional layer 620 in the first type of structure 601 and the second functional layer 620 in the second type of structure 602 are different, so as to achieve a refractive index of the second functional layer 620 in the first type of structure 601 that is different from the refractive index of the second functional layer 620 in the second type of structure 602.

[0119] In these optional embodiments, by setting a1≠a2, the first type of structure 601 and the second type of structure 602 can have different effects on the visual color deviation and viewing angle brightness attenuation, so that the luminous efficiency of the first type of device 401 and the luminous efficiency of the second type of device 402 can be better adjusted respectively, and the visual color deviation and viewing angle brightness attenuation of the first type of device 401 and the visual color deviation and viewing angle brightness attenuation of the second type of device 402 can be better adjusted respectively, so that the display panel 10 as a whole can have a better display effect and a better anti-peeping effect.

[0120] Optionally, a3 may be equal to any one of a1 and a2, for example, a3=a1, or a3=a2, or a1=a2=a3, so that the manufacturing process of the third type structure 603 can be similar to the manufacturing process of the first type structure 601 or the second type structure 602, which can facilitate improving the manufacturing efficiency of the display panel 10. For example, a1=a2=a3=0.54.

[0121] Exemplarily, the refractive index of the first functional layer 610 in the third type structure 603 may be equal to the refractive index of the first functional layer 610 in the first type structure 601 and the second type structure 602, and the refractive index of the second functional layer 620 in the third type structure 603 may be equal to the refractive index of the second functional layer 620 in the first type structure 601 and the second type structure 602. For example, the refractive index of the first functional layer 610 in the first type structure 601, the refractive index of the first functional layer 610 in the second type structure 602, and the refractive index of the first functional layer 610 in the third type structure 603 are all 2, and the refractive index of the second functional layer 620 in the first type structure 601, the refractive index of the second functional layer 620 in the second type structure 602, and the refractive index of the second functional layer 620 in the third type structure 603 are all 1.46.

[0122] Or optionally, a1, a2 and a3 may be different from each other, that is, a1≠a2≠a3, so that the first type of structure 601, the second type of structure 602 and the third type of structure 603 have different effects on the visual color deviation and viewing angle brightness attenuation, so that the luminous efficiency of the first type of device 401, the luminous efficiency of the second type of device 402 and the luminous efficiency of the third type of device 403 can be better adjusted respectively, and the visual color deviation and viewing angle brightness attenuation of the first type of device 401, the visual color deviation and viewing angle brightness attenuation of the second type of device 402 and the visual color deviation and viewing angle brightness attenuation of the third type of device 403 can be better adjusted respectively, so that the display panel 10 as a whole can have a better display effect and a better anti-peeping effect.

[0123] In some embodiments of the present application, the parameters of each functional structure 600 may be set accordingly according to the difference in the light emitting colors between each light emitting device 400 .

[0124] As an example, the wavelength of the light emitting color of the first type device 401 is w1, and the wavelength of the light emitting color of the second type device 402 is w2, w1>w2. For example, the light emitting color of the first type device 401 may be red, and the light emitting color of the second type device 402 may be blue.

[0125] Further, the wavelength of the light emitting color of the third type device 403 is w3, w2<w3<w1. For example, the light emitting color of the third type device 403 may be green.

[0126] Optionally, w1 may be not less than 600 nm, and w1 may be not greater than 700 nm. For example, w1 may be 600 nm, 620 nm, 640 nm, 660 nm, 680 nm, or 700 nm.

[0127] Optionally, w2 may be not less than 400 nm, and w1 may be not greater than 500 nm. For example, w1 may be 400 nm, 420 nm, 440 nm, 460 nm, 480 nm, or 500 nm.

[0128] Optionally, w3 may be not less than 500 nm, and w1 may be not greater than 600 nm. For example, w1 may be 500 nm, 520 nm, 530 nm, 540 nm, 560 nm, 580 nm, or 600 nm.

[0129] In some optional embodiments, s1>s2.

[0130] In this optional embodiment, when w1>w2, that is, when the wavelength of the luminous color of the first type device 401 is greater than the wavelength of the luminous color of the second type device 402, the first type device 401 is more sensitive to the change of s1 in the first type structure 601 above it than the second type device 402 is to the change of s2 in the second type structure 602 above it. Exemplarily, when s1 in the first type structure 601 changes, the luminous efficiency, visual color angular deviation and viewing angle brightness attenuation of the first type device 401 will change greatly. Therefore, by setting s1>s2, that is, by increasing s1 of the first type structure 601 above the more sensitive first type device 401, the overall luminous efficiency of the display panel 10 can be more efficiently improved, and the overall visual color angular deviation and viewing angle brightness attenuation of the display panel 10 can be more efficiently adjusted, so that the display panel 10 can have a better display effect at a normal viewing angle while also improving the anti-peeping effect of the display panel 10. This also prevents s2 from having a large value, so that the second type structure 602 is not likely to have a negative impact on the light emission of the second type device 402 with a smaller wavelength due to an excessively large value of s2, thereby better improving the performance of the display panel 10.

[0131] In some optional embodiments, s2≤s3≤s1.

[0132] In this optional embodiment, when w2<w3<w1, that is, when the wavelength of the luminous color of the third type device 403 is between the wavelength of the luminous color of the first type device 401 and the wavelength of the luminous color of the second type device 402, compared with the first type device 401 to the change of s1 in the first type structure 601 above it and the second type device 402 to the change of s2 in the second type structure 602 above it, the third type device 403 is more moderately sensitive to the change of s3 in the third type structure 603 above it. Exemplarily, when s3 in the third type structure 603 changes, the luminous efficiency, color deviation of the viewing angle and brightness attenuation of the third type device 403 will have more moderate changes. Therefore, by setting s2≤s3≤s1, the third type structure 603 can have a relatively moderate s3, so that the value of s3 in the third type structure 603 will not be too small, so that the third type structure 603 can more appropriately improve the overall luminous efficiency of the display panel 10, and more appropriately adjust the overall viewing angle color deviation and viewing angle brightness attenuation of the display panel 10, so that the display panel 10 can have a suitable display effect at a normal viewing angle and can also improve the anti-peeping effect of the display panel 10. It also makes the value of s3 in the third type structure 603 not too large, so that the third type structure 603 is not likely to have a negative impact on the light emission of the third type device 403 with a relatively moderate wavelength due to the excessive value of s3, and can better improve the performance of the display panel 10.

[0133] In some optional embodiments, a1>a2.

[0134] In this optional embodiment, similar to the above embodiment, the first type device 401 is more sensitive to the change of a1 in the first type structure 601 above it. Therefore, by setting a1>a2, that is, by increasing a1 of the first type structure 601 above the more sensitive first type device 401, the overall luminous efficiency of the display panel 10 can be improved more efficiently, and the overall viewing angle color deviation and viewing angle brightness attenuation of the display panel 10 can be adjusted more efficiently, so that the display panel 10 can have a better display effect at a normal viewing angle and can also improve the anti-peeping effect of the display panel 10. It also makes a2 not have a large value, so that the second type structure 602 is not likely to have a negative impact on the light emission of the second type device 402 with a smaller wavelength due to the excessively large value of a2, and can better improve the performance of the display panel 10.

[0135] In some optional embodiments, a2≤a3≤a1.

[0136] In this optional embodiment, similar to the above embodiment, the third type device 403 is relatively moderately sensitive to the change of a3 in the third type structure 603 above it. Therefore, by setting a2≤a3≤a1, the third type structure 603 can have a relatively moderate a3, so that the value of a3 in the third type structure 603 will not be too small, so that the third type structure 603 can more appropriately improve the overall luminous efficiency of the display panel 10, and more appropriately adjust the overall viewing angle color deviation and viewing angle brightness attenuation of the display panel 10, so that the display panel 10 can have a suitable display effect at a normal viewing angle while also improving the anti-peeping effect of the display panel 10. It also makes the value of a3 in the third type structure 603 not too large, so that the third type structure 603 is not likely to have a negative impact on the light emission of the third type device 403 with a relatively moderate wavelength due to the excessive value of a3, and can better improve the performance of the display panel 10.

[0137] In some embodiments of the present application, the thickness of the first functional layer 610 in the first type of structure 601 is d1, the thickness of the second functional layer 620 in the first type of structure 601 is d2, the thickness of the first functional layer 610 in the second type of structure 602 is d3, the thickness of the second functional layer 620 in the second type of structure 602 is d4, the thickness of the first functional layer 610 in the third type of structure 603 is d5, and the thickness of the second functional layer 620 in the third type of structure 603 is d6.

[0138] Optionally, d1, d2, d3, d4, d5 and d6 may be respectively the maximum thickness of the first functional layer 610 in the first type structure 601, the maximum thickness of the second functional layer 620 in the first type structure 601, the maximum thickness of the first functional layer 610 in the second type structure 602, the maximum thickness of the second functional layer 620 in the second type structure 602, the maximum thickness of the first functional layer 610 in the third type structure 603 and the maximum thickness of the second functional layer 620 in the third type structure 603.

[0139] Or optionally, d1, d2, d3, d4, d5 and d6 may respectively be the average thickness of the first functional layer 610 in the first type of structure 601, the average thickness of the second functional layer 620 in the first type of structure 601, the average thickness of the first functional layer 610 in the second type of structure 602, the average thickness of the second functional layer 620 in the second type of structure 602, the average thickness of the first functional layer 610 in the third type of structure 603 and the average thickness of the second functional layer 620 in the third type of structure 603.

[0140] Figure 5 It is a partial cross-sectional view of a display panel 10 provided in yet another embodiment of the present application.

[0141] In some optional embodiments, such as Figure 5As shown, d1≠d3, and / or, d2≠d4.

[0142] Optionally, the refractive index of the first functional layer 610 in the first type structure 601 is n1, where n1*d1*4=w1.

[0143] Optionally, the refractive index of the second functional layer 620 in the first type structure 601 is n2, n2*d2*4=w1.

[0144] Optionally, d1<d2.

[0145] Optionally, the refractive index of the first functional layer 610 in the second type structure 602 is n3, n3*d3*4=w2.

[0146] Optionally, the refractive index of the second functional layer 620 in the second type structure 602 is n4, n4*d4*4=w2.

[0147] Optionally, d3<d4.

[0148] Optionally, d1>d3, d2>d4.

[0149] In these optional embodiments, when the wavelength of the luminous color of the first type device 401 differs too greatly from the wavelength of the luminous color of the second type device 402, if d1=d3 and d2=d4 are set, it is not conducive to adjusting the ability of the first type structure 601 to adjust the output light of the first type device 401 and is not conducive to adjusting the ability of the second type structure 602 to adjust the output light of the second type device 402. For example, when n1=n3 and n2=n4, if d1=d3 and d2=d4 are set, the thickness setting of the film layer of at least one of the first type structure 601 and the second type structure 602 is not conducive to forming a distributed Bragg reflector, so that the first type device 401 and the second type device 402 cannot simultaneously have good luminous efficiency and more appropriate viewing angle color deviation and viewing angle brightness attenuation, which is not conducive to more fully improving the display effect and anti-peeping effect of the display panel 10.

[0150] In some optional embodiments, d5=d1, d6=d2, or d5=d3, d6=d4.

[0151] In this optional embodiment, by setting d5=d1, d6=d2, or d5=d3, d6=d4, the thickness of the film layer structure in the third type structure 603 can be the same as the film layer structure in the first type structure 601 or the second type structure 602, so that the height of the third type structure 603 and the first type structure 601 or the second type structure 602 relative to the substrate 100 is the same or similar, and it is not easy for the third type structure 603 and the first type structure 601 or the second type structure 602 to have too large a height difference, which can facilitate the formation and preparation of subsequent film layers.

[0152] In other optional embodiments, the refractive index of the first functional layer 610 in the third type of structure 603 is n5, the thickness of the first functional layer 610 in the third type of structure 603 is d5, n5*d5*4=w3, and / or, the refractive index of the second functional layer 620 in the third type of structure 603 is n6, the thickness of the second functional layer 620 in the third type of structure 603 is d6, n6*d6*4=w3.

[0153] Optionally, d5<d6.

[0154] Optionally, d3<d5<d1, d4<d6<d2 (not shown in the figure).

[0155] In this optional embodiment, by setting n5*d5*4=w3 and n6*d6*4=w3, that is, by setting the thicknesses of the first functional layer 610 and the second functional layer 620 in the third type structure 603 according to the refractive index of each film layer structure in the third type structure 603 and the wavelength of the third type device 403, the third type structure 603 can better form a distributed Bragg reflector, so that the third type structure 603 can better adjust the luminous efficiency of the third type device 403 as well as the color deviation and viewing angle brightness attenuation, which is beneficial to more fully improving the display effect and anti-peeping effect of the display panel 10.

[0156] In some optional embodiments, the film layer in the functional structure 600 located at the edge of the functional structure 600 facing the light-emitting device 400 may be the first functional layer 610 .

[0157] Optionally, the film layer in the functional structure 600 located at the edge of the functional structure 600 facing the light-emitting device 400 may be the first functional layer 610, which may mean that the film layer in the functional structure 600 closest to the light-emitting device 400 may be the first functional layer 610. For example, the film layer in the functional structure 600 closest to the second electrode 430 may be the first functional layer 610.

[0158] In these optional embodiments, by setting the film layer located at the edge of the functional structure 600 facing the light-emitting device 400 as the first functional layer 610, the light emitted from the light-emitting device 400 can enter the functional structure 600 through the first functional layer 610 with a higher refractive index, which can facilitate the improvement of the regulating effect of the functional structure 600 on the output light of the light-emitting device 400, so that the light-emitting device 400 can have better luminous efficiency and more appropriate viewing angle color deviation and viewing angle brightness attenuation.

[0159] In some embodiments of the present application, there are multiple ways to set the position of the functional structure 600. The position of the functional structure 600 can be set according to the material of the functional structure 600 and the use requirements of the functional structure 600.

[0160] Figure 6 It is a partial cross-sectional view of a display panel 10 provided in another embodiment of the present application.

[0161] In some optional embodiments, such as Figure 6 As shown, the display panel 10 further includes an encapsulation layer 500 disposed on the side of the functional structure 600 away from the substrate 100. The functional structure 600 may be disposed between the light emitting device 400 and the encapsulation layer 500, and the encapsulation layer 500 may be used to encapsulate the light emitting device 400 and the functional structure 600, so that the light emitting device 400 and the functional structure 600 are not easily affected by external water vapor, so that the display panel 10 may have better working stability.

[0162] Optionally, the encapsulation layer 500 may include a first encapsulation layer 510. Optionally, the material of the first encapsulation layer 510 may include an inorganic material, so that the first encapsulation layer 510 can better reduce the influence of water vapor on the operation of the light-emitting device 400 and the functional structure 600. Exemplarily, the first encapsulation layer 510 can be prepared by a chemical vapor deposition process (Chemical Vapor Deposition, CVD).

[0163] Optionally, the first encapsulation layer 510 may include a first unit 511 disposed on a side of the first type structure 601 away from the substrate 100, a second unit 512 disposed on a side of the first type structure 601 away from the substrate 100, and a third unit 514 disposed on a side of the third type structure 603 away from the substrate 100. The first unit 511 may be used to relatively independently encapsulate the first type structure 601 and the first type device 401, the second unit 512 may be used to relatively independently encapsulate the second type structure 602 and the second type device 402, and the third unit 514 may be used to relatively independently encapsulate the third type structure 603 and the third type device 403.

[0164] Optionally, the encapsulation layer 500 may further include a second encapsulation layer 520 on the side of the first encapsulation layer 510 facing away from the substrate 100, so as to further improve the encapsulation effect of the display panel 10. Optionally, the material of the second encapsulation layer 520 may include an organic material, so that during the preparation process of the display panel 10, the second encapsulation layer 520 may have good fluidity, so that the surface of the second encapsulation layer 520 facing away from the substrate 100 may have good flatness, which can facilitate the formation of subsequent film layers. Exemplarily, the second encapsulation layer 520 may be prepared by inkjet printing technology (Inkjet Printing, IJP).

[0165] Optionally, the encapsulation layer 500 may further include a third encapsulation layer 530 disposed on the side of the second encapsulation layer 520 away from the substrate 100, so as to further improve the encapsulation effect of the display panel 10. Optionally, the material of the third encapsulation layer 530 may include an inorganic material, so that the third encapsulation layer 530 can better reduce the influence of water vapor on the operation of the light-emitting device 400 and the functional structure 600. Exemplarily, the third encapsulation layer 530 can be prepared by a chemical vapor deposition process.

[0166] Optionally, the functional structure 600 is at least partially located in the isolation opening 301. Figure 6 As shown, the functional structure 600 may be completely located in the isolation opening 301 and covered by the encapsulation layer 500. The isolation structure 300 may be used to divide the functional structure 600 into a first type of structure 601, a second type of structure 602 and a third type of structure 603.

[0167] Optionally, there are multiple light emitting devices 400, and the functional structures 600 corresponding to adjacent light emitting devices 400 are arranged at intervals. For example, the functional structures 600 corresponding to adjacent light emitting devices 400 can be arranged at intervals through the isolation structure 300.

[0168] Optionally, the material of the functional structure 600 includes an evaporation material. Specifically, the evaporation material may refer to a material that can be prepared by an evaporation process, so that the functional structure 600 can be prepared by the evaporation process, and the isolation structure 300 can play a certain shielding and isolating role on the material of the functional structure 600.

[0169] For example, the material of the functional structure 600 may include an organic material. Further, the material of the functional structure 600 may include an organic transparent material, so as to better reduce the shielding effect of the functional structure 600 on the light emitted by the light emitting device 400.

[0170] In these optional embodiments, the isolation structure 300 can shield and isolate the material of the functional structure 600 to form the first type of structure 601, the second type of structure 602 and the third type of structure 603. Therefore, in the process of manufacturing the display panel 10, the shielding and isolating effect of the isolation structure 300 on the light-emitting device 400 and the functional structure 600 can be used to realize the separate manufacturing of the light-emitting devices 400 of different colors and the functional structures 600 above the light-emitting devices 400 of different colors.

[0171] For example, the isolation structure 300 can be used to sequentially prepare the first unit 511, the first type of structure 601, the first type of device 401, the second unit 512, the second type of structure 602, the second type of device 402, the third unit 514, the third type of structure 603 and the third type of device 403.

[0172] Figures 7 to 9It is a schematic diagram of a preparation process of a method for preparing a display panel 10 provided in an embodiment of the present application.

[0173] like Figures 7 to 9 As shown. As an example, the first electrode 410 of each light-emitting device 400 may be prepared first. Then, the material of the light-emitting layer 420 and the second electrode 430 in the first type device 401 may be evaporated on the whole surface, and the isolation structure 300 may isolate the material of the light-emitting layer 420 and the second electrode 430 in part of the first type device 401, and then the material of the first type structure 601 may be evaporated on the whole surface, and the isolation structure 300 may isolate the material of part of the first type structure 601, and then the material of the first encapsulation layer 510 may be prepared on the whole surface. Then, the material of the first encapsulation layer 510 outside the first opening 301a is removed to form the first unit 511, and then the material of the first type structure 601 outside the first opening 301a is removed to form the first type structure 601, and then the material of the second electrode 430 of the first type device 401 outside the first opening 301a and the material of the light-emitting layer 420 of the first type device 401 are removed in sequence to form the first type device 401 corresponding to the first opening 301a.

[0174] Then, the material of the light-emitting layer 420 and the second electrode 430 in the second type device 402 is evaporated on the whole surface, and the isolation structure 300 can isolate the material of the light-emitting layer 420 and the second electrode 430 in part of the second type device 402. Then, the material of the second type structure 602 is evaporated on the whole surface, and the isolation structure 300 can isolate the material of part of the second type structure 602. Then, the material of the first encapsulation layer 510 is prepared on the whole surface. Then, the material of the first encapsulation layer 510 outside the second opening 301b is removed to form the second unit 512, and then the material of the second type structure 602 outside the second opening 301b is removed to form the second type structure 602. Then, the material of the second electrode 430 of the second type device 402 outside the second opening 301b and the material of the light-emitting layer 420 of the second type device 402 are removed in sequence to form the second type device 402 corresponding to the second opening 301b.

[0175] Then, the material of the light-emitting layer 420 and the second electrode 430 in the third type device 403 can be evaporated on the whole surface, and the isolation structure 300 can isolate the material of the light-emitting layer 420 and the second electrode 430 in part of the third type device 403, and then the material of the third type structure 603 can be evaporated on the whole surface, and the isolation structure 300 can isolate the material of part of the third type structure 603, and then the material of the first encapsulation layer 510 can be prepared on the whole surface. Then, the material of the first encapsulation layer 510 outside the third opening 301c is removed to form the third unit 514, and then the material of the third type structure 603 outside the third opening 301c is removed to form the third type structure 603, and then the material of the second electrode 430 of the third type device 403 outside the third opening 301c and the material of the light-emitting layer 420 of the third type device 403 are removed in sequence to form the third type device 403 corresponding to the third opening 301c.

[0176] Fig.10 It is a partial cross-sectional view of a display panel 10 provided in another embodiment of the present application.

[0177] In some other optional embodiments, Fig.10 As shown, at least part of the functional structure 600 can be reused as at least part of the encapsulation layer 500, so that during the preparation process of the display panel 10, at least part of the encapsulation layer 500 can be prepared while preparing the functional structure 600, which can well improve the preparation efficiency of the display panel 10. In addition, by reusing at least part of the functional structure 600 as at least part of the encapsulation layer 500, the thickness of the display panel 10 can be well reduced, and the structural compactness of the display panel 10 can be improved.

[0178] Optionally, the encapsulation layer 500 may include the first encapsulation layer 510, the second encapsulation layer 520 and the third encapsulation layer 530 of any of the aforementioned embodiments, and at least part of the functional structure 600 can be reused as at least part of the encapsulation layer 500, which may mean that at least part of the functional structure 600 can be reused as at least one of the first encapsulation layer 510, the second encapsulation layer 520 and the third encapsulation layer 530.

[0179] For ease of description, the following embodiments are described by taking the example that at least part of the functional layer can be reused as the first encapsulation layer 510 .

[0180] Optionally, the functional structure 600 includes a packaging portion 600 a reused as the first packaging layer 510 , and the material of the packaging portion 600 a includes a chemical vapor deposition material.

[0181] Exemplarily, the material of the encapsulation part 600a includes an inorganic material, and specifically, the material of the encapsulation part 600a includes an inorganic transparent material, so as to better reduce the shielding effect of the encapsulation part 600a on the light emitted by the light-emitting device 400. For example, the material of the encapsulation part 600a includes at least one of silicon nitride, silicon oxynitride and silicon oxide.

[0182] Optionally, the packaging portion 600a is at least partially located in the isolation opening 301, and the packaging portion 600a covers the side wall of the isolation structure 300 facing the isolation opening 301, so that the packaging portion 600a can play a better packaging role.

[0183] Optionally, part of the packaging portion 600 a is located on a side of the isolation structure 300 away from the substrate 100 , so that the packaging portion 600 a can have a larger size, which can facilitate improving the packaging path of the packaging portion 600 a .

[0184] Optionally, the packaging portion 600 a located on a side of the isolation structure 300 facing away from the substrate 100 is spaced apart from the isolation structure 300 .

[0185] Optionally, the functional structure 600 is at least partially located in the isolation opening 301 . For example, the packaging portion 600 a may be partially located in the isolation opening 301 .

[0186] Optionally, the functional structures 600 corresponding to adjacent light-emitting devices 400 are arranged at intervals, for example, the packaging parts 600 a of the functional structures 600 corresponding to adjacent light-emitting devices 400 may be arranged at intervals.

[0187] In some embodiments, Fig.10 As described above, only part of the functional structure 600 may be multiplexed as at least part of the encapsulation layer 500 .

[0188] Optionally, the functional structure 600 includes an encapsulation portion 600 a multiplexed as at least a portion of the encapsulation layer 500 , and a functional portion 600 b located between the encapsulation portion 600 a and the light emitting device 400 .

[0189] Optionally, the material of the functional part 600b includes an evaporation material. Specifically, the evaporation material may refer to a material that can be prepared by an evaporation process, so that the functional part 600b can be prepared by the evaporation process, and the isolation structure 300 can play a certain shielding and isolating role on the material of the functional part 600b.

[0190] For example, the material of the functional part 600 b may include an organic material. Further, the material of the functional part 600 b may include an organic transparent material, so as to better reduce the shielding effect of the functional part 600 b on the light emitted by the light emitting device 400 .

[0191] Optionally, the functional structure 600 is at least partially located in the isolation opening 301 . For example, the functional portion 600 b may be located in the isolation opening 301 .

[0192] Optionally, the functional structures 600 corresponding to adjacent light-emitting devices 400 are spaced apart from each other. For example, the functional parts 600 b of the functional structures 600 corresponding to adjacent light-emitting devices 400 may be spaced apart from each other via the isolation structure 300 .

[0193] In this embodiment, the isolation structure 300 can shield and isolate the material of the functional part 600b to form the functional part 600b of the first type structure 601, the functional part 600b of the second type structure 602, and the functional part 600b of the third type structure 603. Therefore, in the process of manufacturing the display panel 10, the shielding and isolating effect of the isolation structure 300 on the light-emitting device 400 and the functional part 600b of the functional structure 600 can be used to realize the separate manufacturing of light-emitting devices 400 of different colors and the functional part 600b above the light-emitting devices 400 of different colors.

[0194] For example, the isolation structure 300 can be used to sequentially complete the preparation of the packaging part 600a reused as the first unit 511 in the first type structure 601, the functional part 600b in the first type structure 601, the first type device 401, the packaging part 600a reused as the second unit 512 in the second type structure 602, the functional part 600b in the second type structure 602, the second type device 402, the packaging part 600a reused as the third unit 514 in the third type structure 603, the functional part 600b in the third type structure 603 and the third type device 403.

[0195] Figures 11 to 13 It is a schematic diagram of a manufacturing process of a method for manufacturing a display panel 10 provided in another embodiment of the present application.

[0196] like Figures 11 to 13As shown. As an example, the first electrode 410 of each light-emitting device 400 may be prepared first. Then, the material of the light-emitting layer 420 and the second electrode 430 in the first type device 401 may be evaporated on the whole surface, and the isolation structure 300 may isolate the material of the light-emitting layer 420 and the second electrode 430 in part of the first type device 401. Then, the material of the functional part 600b of the first type structure 601 may be evaporated on the whole surface, and the isolation structure 300 may isolate the material of the functional part 600b of the first type structure 601. Then, the material of the packaging part 600a reused as the first unit 511 in the first type structure 601 may be prepared on the whole surface. Then, the material of the packaging portion 600a of the first type structure 601 outside the first opening 301a is removed to form the packaging portion 600a of the first type structure 601, i.e., the first unit 511, and then the material of the functional portion 600b of the first type structure 601 outside the first opening 301a is removed to form the functional portion 600b of the first type structure 601, and then the material of the second electrode 430 of the first type device 401 outside the first opening 301a and the material of the light-emitting layer 420 of the first type device 401 are removed in sequence to form the first type device 401 arranged corresponding to the first opening 301a.

[0197] Then, the material of the light-emitting layer 420 and the second electrode 430 in the second type device 402 is vapor-deposited on the entire surface. The isolation structure 300 can isolate part of the material of the light-emitting layer 420 and the second electrode 430 in the second type device 402. Then, the material of the functional part 600b of the second type structure 602 is vapor-deposited on the entire surface. The isolation structure 300 can isolate part of the material of the functional part 600b of the second type structure 602. Then, the material of the packaging part 600a reused as the second unit 512 in the second type structure 602 is prepared on the entire surface. Then, the material of the packaging part 600a of the second type structure 602 outside the second opening 301b is removed to form the packaging part 600a of the second type structure 602, i.e., the second unit 512, and then the material of the functional part 600b of the second type structure 602 outside the second opening 301b is removed to form the functional part 600b of the second type structure 602, and then the material of the second electrode 430 of the second type device 402 outside the second opening 301b and the material of the light-emitting layer 420 of the second type device 402 are removed in sequence to form the second type device 402 arranged corresponding to the second opening 301b.

[0198] Then, the entire surface of the material of the light-emitting layer 420 and the second electrode 430 in the third type device 403 can be evaporated, and the isolation structure 300 can isolate part of the material of the light-emitting layer 420 and the second electrode 430 in the third type device 403. Then, the entire surface of the material of the functional part 600b of the third type structure 603 can be evaporated. The isolation structure 300 can isolate part of the material of the functional part 600b of the third type structure 603. Then, the entire surface of the material of the packaging part 600a reused as the third unit 514 in the third type structure 603 can be prepared. Then, the material of the packaging part 600a of the third type structure 603 outside the third opening 301c is removed to form the packaging part 600a of the third type structure 603, i.e., the third unit 514, and then the material of the functional part 600b of the third type structure 603 outside the third opening 301c is removed to form the functional part 600b of the third type structure 603, and then the material of the second electrode 430 of the third type device 403 outside the third opening 301c and the material of the light-emitting layer 420 of the third type device 403 are removed in sequence to form a third type device 403 arranged corresponding to the third opening 301c.

[0199] Fig.14 FIG. 1 is a partial cross-sectional view of a display panel 10 provided in another embodiment of the present application. Fig.14 The display of each film layer in the functional structure 600 is therefore Fig.14 The numbers of the first functional layers 610 and the second functional layers 620 in each functional structure 600 are simplified and do not represent the actual numbers.

[0200] In other embodiments, the functional structure 600 may be configured to be reused as at least part of the encapsulation layer 500, that is, the entire functional structure 600 may be reused as at least part of the encapsulation layer 500. For example, the functional structure 600 may not include the functional part 600b in the aforementioned embodiment, and the encapsulation part 600a of the functional structure 600 may be reused as at least part of the encapsulation layer 500.

[0201] Optionally, the material of the first functional layer 610 in the encapsulation part 600a includes silicon nitride or silicon oxynitride, and the material of the second functional layer 620 in the encapsulation part 600a includes silicon oxide, so that the refractive index of the first functional layer 610 is greater than the refractive index of the second functional layer 620.

[0202] In this embodiment, during the preparation of the display panel 10 , the shielding and isolating effect of the isolation structure 300 on the light-emitting device 400 can be utilized to achieve different color light-emitting devices 400 and separate preparation of different color light-emitting devices 400 .

[0203] For example, the isolation structure 300 can be used to sequentially complete the preparation of a first type structure 601 multiplexed as a first unit 511, a first type device 401, a second type structure 602 multiplexed as a second unit 512, a second type device 402, a third type structure 603 multiplexed as a third unit 514, and a third type device 403.

[0204] Figures 15 to 17 1 is a schematic diagram of a manufacturing process of a method for manufacturing a display panel 10 provided in yet another embodiment of the present application.

[0205] like Figures 15 to 17 As shown. As an example, the first electrode 410 of each light-emitting device 400 may be prepared first. Then, the material of the light-emitting layer 420 and the second electrode 430 in the first type device 401 may be evaporated on the entire surface, and the isolation structure 300 may isolate the material of the light-emitting layer 420 and the second electrode 430 in part of the first type device 401, and then the material of the first type structure 601 may be evaporated on the entire surface. Then, the material of the first type structure 601 outside the first opening 301a is removed to form the first type structure 601 reused as the first unit 511, and then the material of the second electrode 430 of the first type device 401 outside the first opening 301a and the material of the light-emitting layer 420 of the first type device 401 are removed in sequence to form the first type device 401 set corresponding to the first opening 301a.

[0206] Then, the material of the light-emitting layer 420 and the second electrode 430 in the second type device 402 is evaporated on the whole surface. The isolation structure 300 can isolate the material of the light-emitting layer 420 and the second electrode 430 in part of the second type device 402, and then the material of the second type structure 602 is evaporated on the whole surface. Then, the material of the second type structure 602 outside the second opening 301b is removed to form the second type structure 602 reused as the second unit 512, and then the material of the second electrode 430 of the second type device 402 outside the second opening 301b and the material of the light-emitting layer 420 of the second type device 402 are removed in sequence to form the second type device 402 arranged corresponding to the second opening 301b.

[0207] Then, the entire surface of the material of the light-emitting layer 420 and the second electrode 430 in the third type device 403 can be evaporated, and the isolation structure 300 can isolate the material of the light-emitting layer 420 and the second electrode 430 in part of the third type device 403, and then the entire surface of the material of the third type structure 603 is evaporated. Then, the material of the third type structure 603 outside the third opening 301c is removed to form the third type structure 603 reused as the third unit 514, and then the material of the second electrode 430 of the third type device 403 outside the third opening 301c and the material of the light-emitting layer 420 of the third type device 403 are removed in sequence to form the third type device 403 corresponding to the third opening 301c.

[0208] The embodiment of the second aspect of the present application provides a display device, and the display device includes the display panel 10 of any of the above-mentioned embodiments. Since the display device provided by the embodiment of the second aspect of the present application includes the display panel 10 of any of the above-mentioned first aspects, the display device provided by the embodiment of the second aspect of the present application has the beneficial effects of the display panel 10 of any of the above-mentioned first aspects, which will not be repeated here.

[0209] 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.

[0210] According to the embodiments of the present application as above, these embodiments do not describe all the details in detail, nor do they limit the invention to specific embodiments. 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 only limited by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized in that: include: substrate; An isolation structure is disposed on one side of the substrate and encloses an isolation opening; A light emitting device, disposed on one side of the substrate and at least partially located in the isolation opening; A functional structure is arranged on the side of the light-emitting device away from the substrate, and the functional structure includes a first functional layer and a second functional layer. The refractive index of the first functional layer is greater than the refractive index of the second functional layer. The first functional layer and the second functional layer are alternately stacked in the thickness direction of the display panel.

2. The display panel according to claim 1, characterized in that: The isolation opening includes a first opening and a second opening, the light emitting device includes a first type of device arranged corresponding to the first opening and a second type of device arranged corresponding to the second opening, the light emitting colors of the first type of device and the second type of device are different, the functional structure includes a first type of structure arranged on a side of the first type of device away from the substrate and a second type of structure arranged on a side of the second type of device away from the substrate, The total number of the first functional layer and the second functional layer in a single structure of the first type is s1, the total number of the first functional layer and the second functional layer in a single structure of the second type is s2, s1≠s2, and / or the difference between the refractive index of the first functional layer and the refractive index of the second functional layer in the first type of structure is a1, the difference between the refractive index of the first functional layer and the refractive index of the second functional layer in the second type of structure is a2, a1≠a2; Preferably, 2≤s1≤20, and / or, 2≤s2≤20.

3. The display panel according to claim 2, characterized in that: The wavelength of the light-emitting color of the first type of device is w1, and the wavelength of the light-emitting color of the second type of device is w2, w1>w2, Wherein, s1>s2, and / or, a1>a2; Preferably, the light emitting color of the first type of device is red, and the light emitting color of the second type of device is blue.

4. The display panel according to claim 2, characterized in that: The material of the first functional layer in the first type of structure is different from that of the first functional layer in the second type of structure, and / or the material of the second functional layer in the first type of structure is different from that of the second functional layer in the second type of structure.

5. The display panel according to claim 2, characterized in that: The thickness of the first functional layer in the first type of structure is d1, the thickness of the first functional layer in the second type of structure is d3, d1≠d3, and / or the thickness of the second functional layer in the first type of structure is d2, the thickness of the second functional layer in the second type of structure is d4, d2≠d4; Preferably, the wavelength of the light-emitting color of the first type of device is w1, and the wavelength of the light-emitting color of the second type of device is w2. The refractive index of the first functional layer in the first type of structure is n1, n1*d1*4=w1, and / or, the refractive index of the second functional layer in the first type of structure is n2, n2*d2*4=w1, and / or, the refractive index of the first functional layer in the second type of structure is n3, n3*d3*4=w2, And / or, the refractive index of the second functional layer in the second type of structure is n4, n4*d4*4=w2.

6. The display panel according to claim 2, characterized in that: The isolation opening includes a third opening, the light emitting device includes a third type of device arranged corresponding to the third opening, the light emitting colors of the first type of device, the second type of device and the third type of device are different from each other, the functional structure includes a third type of structure arranged on a side of the third type of device away from the substrate, the wavelength of the light emitting color of the first type of device is w1, the wavelength of the light emitting color of the second type of device is w2, and the wavelength of the light emitting color of the third type of device is w3, w2<w3<w1, The total number of the first functional layer and the second functional layer in a single structure of the third type is s3, s2≤s3≤s1, and / or the difference between the refractive index of the first functional layer and the refractive index of the second functional layer in the structure of the third type is a3, a2≤a3≤a1; Preferably, 2≤s3≤20; Preferably, the light emitting color of the first type of device is red, the light emitting color of the second type of device is blue, and the light emitting color of the third type of device is green.

7. The display panel according to claim 6, characterized in that: The thickness of the first functional layer in the third type of structure is d5, the thickness of the second functional layer in the third type of structure is d6, The thickness of the first functional layer in the first type of structure is d1, the thickness of the second functional layer in the first type of structure is d2, d5=d1, d6=d2, Or, the thickness of the first functional layer in the second type of structure is d3, the thickness of the second functional layer in the second type of structure is d4, d5=d3, d6=d4.

8. The display panel according to claim 6, characterized in that: The refractive index of the first functional layer in the third type of structure is n5, the thickness of the first functional layer in the third type of structure is d5, n5*d5*4=w3, And / or, the refractive index of the second functional layer in the third type of structure is n6, the thickness of the second functional layer in the third type of structure is d6, and n6*d6*4=w3.

9. The display panel according to claim 1, characterized in that: The film layer in the functional structure located at the edge of the functional structure facing the light-emitting device is the first functional layer.

10. The display panel according to claim 1, characterized in that: The refractive index of the first functional layer is not less than 1.6 and not more than 2.3, and / or the refractive index of the second functional layer is not less than 1.3 and not more than 1.

8.

11. The display panel according to claim 1, characterized in that: The functional structure is at least partially located within the isolation opening; Preferably, there are a plurality of light-emitting devices, and the functional structures corresponding to adjacent light-emitting devices are arranged at intervals.

12. The display panel according to claim 1, characterized in that: The isolation structure comprises a first isolation portion and a second isolation portion located at a side of the first isolation portion away from the substrate, wherein the second isolation portion is arranged to protrude from the first isolation portion toward the isolation opening; Preferably, the light-emitting device comprises a first electrode, a light-emitting layer and a second electrode stacked in sequence in a direction away from the substrate, the material of the isolation structure comprises a conductive material, and the second electrode is connected to the isolation structure; Preferably, the isolation structure further comprises a conductive portion located on a side of the first isolation portion facing the substrate, the conductive portion is arranged to protrude from the first isolation portion toward the isolation opening, and the second electrode is connected to the conductive portion.

13. The display panel according to any one of claims 1 to 12, characterized in that: The display panel further comprises an encapsulation layer disposed on a side of the functional structure away from the substrate; Preferably, the material of the functional structure includes an evaporation material; Preferably, the material of the functional structure comprises an organic material; Preferably, the material of the functional structure includes an organic transparent material.

14. The display panel according to any one of claims 1 to 12, characterized in that: At least part of the functional structure is reused as at least part of the encapsulation layer; Preferably, the functional structure comprises an encapsulation part which is reused as at least a part of the encapsulation layer and a functional part located between the encapsulation part and the light-emitting device, and the material of the functional part comprises an evaporated material.

15. The display panel according to claim 14, characterized in that: The encapsulation layer comprises a first encapsulation layer, 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, and at least part of the functional structure is reused as at least one of the first encapsulation layer, the second encapsulation layer and the third encapsulation layer; Preferably, the functional structure comprises an encapsulation portion reused as the first encapsulation layer, and a material of the encapsulation portion comprises a chemical vapor deposition material; Preferably, the material of the packaging part includes an inorganic material; Preferably, the material of the packaging part includes an inorganic transparent material; Preferably, the material of the packaging portion includes at least one of silicon nitride, silicon oxynitride and silicon oxide; Preferably, a material of the first functional layer in the encapsulation portion includes silicon nitride or silicon oxynitride, and a material of the second functional layer in the encapsulation portion includes silicon oxide.

16. The display panel according to claim 14, characterized in that: The functional structure includes an encapsulation portion reused as the first encapsulation layer, the encapsulation portion is at least partially located in the isolation opening, and the encapsulation portion covers the side wall of the isolation structure facing the isolation opening; Preferably, part of the packaging portion is located on a side of the isolation structure away from the substrate; Preferably, the packaging portion located on a side of the isolation structure away from the substrate is spaced apart from the isolation structure.

17. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 16.

Images