Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel includes: a substrate; the light-emitting functional layer is arranged on one side of the substrate, and the light-emitting functional layer comprises a plurality of light-emitting functional parts which are arranged at intervals; the first electrode layer is arranged on the side, away from the substrate, of the light-emitting functional layer; the first electrode layer comprises a plurality of first electrode parts which are arranged at intervals; a plurality of auxiliary electrodes electrically connected to the first electrode portion; the insulating layer is arranged on one side of the substrate, the insulating layer is provided with an accommodating part, and at least part of the auxiliary electrode is arranged in the accommodating part; the orthographic projection of the auxiliary electrode on the substrate is located on at least one side of the orthographic projection of the light-emitting function part on the substrate. According to the display panel, the phenomenon of lateral electric leakage between different sub-pixels can be improved, so that the display effect can be improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] In recent years, OLED (Organic Light-Emitting Diode) has attracted widespread attention due to its huge application market in the display field. Compared with other display technologies, OLED modules have many advantages, such as wide viewing angle, fast response speed, no need for backlighting, and flexible display.

[0003] The display panel in the related art has the problem of poor display effect. Summary of the invention

[0004] Based on this, it is necessary to provide a display panel and a display device, aiming to improve the problem of poor display effect of the display panel.

[0005] According to one aspect of the present application, a display panel is provided. The display panel includes: a substrate; a light-emitting functional layer, which is arranged on one side of the substrate, and the light-emitting functional layer includes a plurality of light-emitting functional parts arranged at intervals; a first electrode layer, which is arranged on the side of the light-emitting functional layer away from the substrate; the first electrode layer includes a plurality of first electrode parts arranged at intervals; a plurality of auxiliary electrodes, the auxiliary electrodes being electrically connected to the first electrode parts; an insulating layer, which is arranged on one side of the substrate, and the insulating layer is provided with a receiving part, and the auxiliary electrode is at least partially arranged in the receiving part; wherein the orthographic projection of the auxiliary electrode on the substrate is located on at least one side of the orthographic projection of the light-emitting functional part on the substrate.

[0006] In the display panel of the embodiment of the present application, the first electrode layer includes a plurality of first electrode portions arranged at intervals, and the light-emitting functional layer includes a plurality of light-emitting functional portions arranged at intervals, so that the light-emitting functional portions between different sub-pixels are arranged at intervals, and there is no common layer. Thus, the lateral leakage between different sub-pixels can be improved, which is conducive to improving the display effect.

[0007] In addition, the display panel is further provided with a plurality of auxiliary electrodes, and the orthographic projection of the auxiliary electrodes on the substrate is located on at least one side of the orthographic projection of the light-emitting functional portion on the substrate. The first electrode portion is electrically connected to the auxiliary electrode. In this arrangement, by electrically connecting the auxiliary electrode to the first electrode layer and arranging the auxiliary electrode in the receiving portion of the insulating layer, the relative area of ​​the first electrode portion can be increased, thereby reducing the impedance of the first electrode layer, and further improving the uniformity of the brightness of the display screen of the display panel.

[0008] In some embodiments, the orthographic projection of the auxiliary electrode on the substrate at least partially surrounds the orthographic projection of the light-emitting functional portion on the substrate.

[0009] In some embodiments, the orthographic projection of the auxiliary electrode on the substrate is a closed ring structure, or the orthographic projection of the auxiliary electrode on the substrate is a dot structure or a straight line structure arranged at intervals.

[0010] In some embodiments, the receiving portion is configured as an opening on the insulating layer.

[0011] In some embodiments, the accommodation portion is arranged in an outwardly expanding manner from an end close to the substrate to an end far away from the substrate.

[0012] In some embodiments, the cross-sectional shape of the opening is an inverted triangle or an inverted trapezoid.

[0013] In some embodiments, the opening is a through hole.

[0014] In some embodiments, the opening is a blind hole.

[0015] In some embodiments, the auxiliary electrode covers at least a portion of a sidewall of the opening.

[0016] In some embodiments, the auxiliary electrode is a V-shaped structure.

[0017] In some embodiments, the sidewall of the first electrode portion extends to the receiving portion and overlaps with the auxiliary electrode.

[0018] In some embodiments, at least one accommodating portion is disposed between adjacent light-emitting functional portions.

[0019] In some embodiments, two spaced-apart accommodating portions are disposed between adjacent light-emitting functional portions, and the auxiliary electrodes corresponding to the adjacent light-emitting functional portions are disposed in the two accommodating portions, respectively.

[0020] In some embodiments, one accommodating portion is disposed between adjacent light-emitting functional portions, and the auxiliary electrodes corresponding to adjacent light-emitting functional portions are located in the same accommodating portion.

[0021] In some embodiments, the auxiliary electrodes corresponding to adjacent light-emitting functional parts are spaced apart from each other and insulated from each other.

[0022] In some embodiments, the multiple light-emitting functional parts include a first light-emitting functional part and a second light-emitting functional part; the multiple auxiliary electrodes include a first auxiliary electrode corresponding to the first light-emitting part and a second auxiliary electrode corresponding to the second light-emitting functional part; the display panel also includes a first voltage signal line and a second voltage signal line, the first voltage signal line is used to provide a first voltage, and the second voltage signal line is used to provide a second voltage; the first auxiliary electrode is electrically connected to the first voltage signal line, and the second auxiliary electrode is electrically connected to the second voltage signal line.

[0023] In some embodiments, the first light-emitting functional portion is configured to emit a first color light, and the second light-emitting functional portion is configured to emit a second color light.

[0024] In some embodiments, the multiple light-emitting functional units also include a third light-emitting functional unit, and the multiple auxiliary electrodes also include a third auxiliary electrode corresponding to the third light-emitting functional unit; the display panel also includes a third voltage line signal line, and the third voltage signal line is used to provide a third voltage; the third auxiliary electrode is electrically connected to the third voltage signal line.

[0025] In some embodiments, the third light-emitting functional portion is configured to emit a third color light.

[0026] In some embodiments, the first voltage signal line, the second voltage signal line, and the third voltage signal line are negative voltage power signal lines.

[0027] In some embodiments, the auxiliary electrodes corresponding to adjacent light-emitting functional units are electrically connected to each other.

[0028] In some embodiments, the auxiliary electrodes corresponding to adjacent light-emitting functional parts are connected as a whole, the auxiliary electrodes corresponding to adjacent light-emitting functional parts are located in the same accommodation part, and the orthographic projection of the auxiliary electrode on the substrate is located between the orthographic projections of adjacent light-emitting functional parts on the substrate.

[0029] In some embodiments, the display panel further includes an isolation structure, wherein the isolation structure separates adjacent light-emitting functional parts, and the isolation structure is disposed on a side of the auxiliary electrode away from the substrate.

[0030] In some embodiments, the isolation structure includes a conductive material, and the auxiliary electrodes corresponding to adjacent light-emitting functional parts are electrically connected through the isolation structure.

[0031] In some embodiments, the auxiliary electrodes corresponding to adjacent light-emitting functional parts are located in the same receiving part, and the isolation structure is located in the receiving part and on a side of the auxiliary electrode facing away from the substrate.

[0032] In some embodiments, two spaced-apart accommodating portions are provided on the insulating layer between adjacent light-emitting functional portions, auxiliary electrodes corresponding to adjacent light-emitting functional portions are respectively provided in the accommodating portions, and the isolation structure is provided between the two accommodating portions.

[0033] In some embodiments, the isolation structure includes an isolation body and a blocking portion, the blocking portion is disposed on a side of the isolation body facing away from the substrate, and an orthographic projection of the isolation body on the substrate is located within an orthographic projection of the blocking portion on the substrate.

[0034] In some embodiments, at least a portion of the auxiliary electrode's orthographic projection on the substrate is located between the orthographic projection of the spacer on the substrate and the orthographic projection of the light-emitting functional portion on the substrate.

[0035] In some embodiments, two auxiliary electrodes are disposed on the insulating layer between adjacent light-emitting functional parts, and the orthographic projection of the spacer on the substrate is located between the orthographic projections of adjacent auxiliary electrodes on the substrate.

[0036] In some embodiments, the auxiliary electrode overlaps the isolator near a side of the isolator.

[0037] In some embodiments, it further includes a second electrode layer disposed on the substrate; the second electrode layer includes a plurality of second electrode portions disposed at intervals, and the light-emitting functional portion is disposed on a side of the second electrode portion away from the substrate.

[0038] In some embodiments, the insulating layer includes a pixel definition layer, which is arranged on the side of the second electrode layer facing away from the substrate, and the pixel definition layer is used to isolate and insulate adjacent second electrode portions. The pixel definition layer is provided with a plurality of first openings for exposing the second electrode portions; the light-emitting functional portion is at least partially arranged in the first opening; and the accommodating portion is located in the pixel definition layer.

[0039] In some embodiments, the insulating layer includes a planarization layer, the second electrode layer is disposed on a side of the planarization layer facing away from the substrate; and the accommodation portion is located in the planarization layer.

[0040] In some embodiments, the insulating layer further includes an insulating portion, and the insulating portion is disposed on a side of the planarization layer facing away from the substrate and is disposed around the second electrode portion.

[0041] In some embodiments, the insulating layer includes a combination of a pixel definition layer and a planarization layer, the planarization layer is located on one side of the substrate, the pixel definition layer is located on a side of the planarization layer away from the substrate, and the accommodation portion is at least partially located in the pixel definition layer.

[0042] In some embodiments, the accommodation portion extends through the pixel definition layer into the planarization layer.

[0043] In some embodiments, the pixel definition layer includes an inorganic material.

[0044] In some embodiments, the pixel definition layer includes silicon nitride.

[0045] In some embodiments, the display panel also includes multiple third electrode portions, the third electrode portions are arranged on a side of the insulating layer close to the substrate, at least part of the third electrode portions have their orthographic projections on the substrate overlap with the orthographic projections of the auxiliary electrodes on the substrate, and the auxiliary electrodes are electrically connected to the third electrode portions.

[0046] In some embodiments, one of the auxiliary electrodes is correspondingly provided with one of the third electrode portions, the third electrode portion is provided below the auxiliary electrode, and the bottom of the auxiliary electrode is electrically connected to the corresponding third electrode portion.

[0047] In some embodiments, one third electrode portion is disposed corresponding to each of the plurality of auxiliary electrodes, the third electrode portion is disposed below the auxiliary electrodes, and the bottoms of the plurality of auxiliary electrodes are electrically connected to the corresponding third electrode portions.

[0048] In some embodiments, the third electrode portion is disposed in the same layer as the second electrode portion.

[0049] In some embodiments, gaps are provided between adjacent third electrode portions.

[0050] In some embodiments, adjacent third electrode portions are connected to each other.

[0051] In some embodiments, the receiving portion is an opening on the insulating layer.

[0052] In some embodiments, an orthographic projection of the accommodation portion on the substrate is located within an orthographic projection of the third electrode portion on the substrate, and the accommodation portion exposes the third electrode portion.

[0053] In some embodiments, the display panel further comprises an isolation structure, the isolation structure being used to isolate the light-emitting functional part; the isolation structure comprises an isolator, the isolator is disposed on one side of the substrate, and the isolator isolates the light-emitting functional part;

[0054] Optionally, an orthographic projection of the isolating body on the substrate and an orthographic projection of the first opening on the substrate have no overlapping area;

[0055] In some embodiments, the isolation structure further includes a blocking portion, which is disposed on a side of the isolation body facing away from the substrate, and an orthographic projection of the isolation body on the substrate is located within an orthographic projection of the blocking portion on the substrate.

[0056] In some embodiments, the isolator is made of a non-conductive material.

[0057] In some embodiments, the separator includes a conductive material, and the auxiliary electrode is electrically connected to the separator.

[0058] In some embodiments, at least a portion of the auxiliary electrode's orthographic projection on the substrate is located between the orthographic projection of the spacer on the substrate and the orthographic projection of the light-emitting functional portion on the substrate.

[0059] In some embodiments, the isolation structure is disposed on a side of the insulating layer facing away from the substrate.

[0060] In some embodiments, the isolation structure is disposed on a side of the auxiliary electrode facing away from the substrate.

[0061] In some embodiments, the isolation structure defines a plurality of second openings, and the light emitting function portion and the first electrode portion are both disposed within the second openings.

[0062] In some embodiments, the orthographic projection of the isolation structure on the substrate is in a grid shape.

[0063] In some embodiments, an orthographic projection of the isolation structure on the substrate includes a plurality of independent ring structures.

[0064] In some embodiments, the display panel further includes a first encapsulation layer, the first encapsulation layer includes a plurality of encapsulation parts arranged at intervals, the encapsulation parts are arranged corresponding to the light-emitting functional parts, and the encapsulation parts are in contact with the isolation structure.

[0065] In some embodiments, the display panel further includes a second encapsulation layer, the second encapsulation layer is located on a side of the first encapsulation layer away from the substrate, and a portion of the second encapsulation layer covers the first encapsulation layer and the isolation structure.

[0066] In some embodiments, the display panel further includes a third encapsulation layer, and the third encapsulation layer is located on a side of the second encapsulation layer away from the substrate;

[0067] In some embodiments, the first encapsulation layer and the third encapsulation layer are inorganic encapsulation layers, and the second encapsulation layer is an organic encapsulation layer.

[0068] According to another aspect of the present application, a display panel is provided, comprising: a substrate; a light-emitting functional layer, arranged on one side of the substrate, the light-emitting functional layer comprising a plurality of light-emitting functional parts arranged at intervals; a first electrode layer, arranged on a side of the light-emitting functional layer away from the substrate; the first electrode layer comprising a plurality of first electrode parts arranged at intervals, the first electrode parts being arranged on a side of the light-emitting functional part away from the substrate; an insulating layer, arranged on one side of the substrate, the insulating layer being provided with a receiving part; an isolation structure, arranged on a side of the insulating layer away from the substrate, the isolation structure enclosing a second opening, the light-emitting functional part being located in the second opening, the isolation structure comprising an isolation body arranged close to the substrate;

[0069] An auxiliary electrode is at least partially disposed in the accommodation portion, the auxiliary electrode is electrically connected to the first electrode portion, and at least a portion of the auxiliary electrode has its orthographic projection on the substrate located between the orthographic projection of the insulator on the substrate and the orthographic projection of the light-emitting functional portion on the substrate.

[0070] According to another aspect of the present application, a display device is provided, wherein the display device comprises the display panel in any one of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Figure 1 is a schematic diagram of a display device in an embodiment of the present application;

[0072] Figure 2 is a schematic top view of a display panel in an embodiment of the present application;

[0073] Figure 3 is a schematic cross-sectional view of a display panel in an embodiment of the present application;

[0074] Figure 4 This is a schematic diagram of the connection relationship between the first voltage signal line and the second voltage signal line in one embodiment of the present application;

[0075] Figure 5 is a schematic cross-sectional view of a display panel in another embodiment of the present application;

[0076] Figure 6 is a schematic cross-sectional view of a display panel in another embodiment of the present application;

[0077] Figure 7 is a schematic cross-sectional view of a display panel in another embodiment of the present application;

[0078] Figure 8 is a schematic cross-sectional view of a display panel in another embodiment of the present application;

[0079] Fig. 9 is a schematic top view of a display panel in another embodiment of the present application;

[0080] Fig.10 is a schematic cross-sectional view of an auxiliary electrode in an embodiment of the present application;

[0081] Fig.11 is a schematic cross-sectional view of an auxiliary electrode in another embodiment of the present application;

[0082] Fig.12 is a schematic cross-sectional view of an auxiliary electrode in another embodiment of the present application;

[0083] Fig.13 is a schematic cross-sectional view of an auxiliary electrode in another embodiment of the present application;

[0084] Fig.14 is a schematic cross-sectional view of an auxiliary electrode in another embodiment of the present application;

[0085] Fig.15 is a schematic top view of an auxiliary electrode in an embodiment of the present application;

[0086] Fig.16 FIG. 1 is a schematic top view of an auxiliary electrode in another embodiment of the present application. DETAILED DESCRIPTION

[0087] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0088] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0089] When describing positional relationships, unless otherwise specified, when an element such as a layer, film, or substrate is referred to as being "on" another element, it can be directly on the other element or there may be intervening elements. Further, when a layer is referred to as being "under" another layer, it can be directly under or there may be one or more intervening elements. It is also understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers or there may be one or more intervening elements.

[0090] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0091] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present application.

[0092] It should also be understood that when interpreting an element, even if not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of the specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" can mean within one or more standard deviations, which are not limited here.

[0093] Furthermore, in the specification, the phrase “planar distribution schematic diagram” refers to a drawing when a target portion is viewed from above, and the phrase “cross-sectional schematic diagram” refers to a drawing when a section taken by vertically cutting the target portion is viewed from the side.

[0094] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0095] In recent years, OLED (Organic Light-Emitting Diode) has attracted widespread attention due to its huge application market in the display field. Compared with other display technologies, OLED modules have many advantages, such as wide viewing angle, fast response speed, no need for backlighting, and flexible display.

[0096] In the display panel of the related art, each sub-pixel shares a cathode, and the existence of a common layer will cause lateral leakage between different sub-pixels, thereby affecting the display effect.

[0097] like Figures 1 to 3 As shown, the display panel 100 in the embodiment of the first aspect of the present application includes a substrate 110 , a light-emitting functional layer 130 , a first electrode layer 150 , an insulating layer 160 and a plurality of auxiliary electrodes 200 .

[0098] The light-emitting functional layer 130 is disposed on one side of the substrate 110, and the light-emitting functional layer 130 includes a plurality of light-emitting functional parts 131 disposed at intervals. The first electrode layer 150 is disposed on the side of the light-emitting functional layer 130 away from the substrate 110; the first electrode layer 150 includes a plurality of first electrode parts 151 disposed at intervals, and the auxiliary electrode 200 is electrically connected to the first electrode part 151. The insulating layer 160 is disposed on one side of the substrate 110, and the insulating layer 160 is provided with a receiving part 162, and the auxiliary electrode 200 is at least partially disposed in the receiving part 162. Among them, the orthographic projection of the auxiliary electrode 200 on the substrate 110 is located on at least one side of the orthographic projection of the light-emitting functional part 131 on the substrate 110.

[0099] The display panel 100 may be an OLED display panel 100, and the substrate 110 may include a substrate and a driving circuit layer disposed on the substrate. Specifically, in some embodiments, the substrate may be a rigid substrate or a flexible substrate. When the substrate is a rigid substrate, the material of the substrate may be glass or a silicon wafer, etc. When the substrate is a flexible substrate, the material of the substrate may be polyimide, etc. The driving circuit layer may include a plurality of thin film transistors for controlling the OLED light emitting element to emit light or not. The thin film transistor may include an active layer, a gate insulating layer, a gate, a source electrode, and a drain electrode, wherein one of the source electrode and the drain electrode is electrically connected to the anode of the OLED light emitting element.

[0100] The first electrode layer 150 may be a cathode layer of the display panel 100. The first electrode layer 150 includes a plurality of first electrode portions 151 arranged at intervals, wherein the first electrode portion 151 may be a cathode of an OLED light-emitting element. The light-emitting functional layer 130 includes a plurality of light-emitting functional portions 131 arranged at intervals, wherein the light-emitting functional portion 131 includes at least an organic light-emitting layer. In addition, the light-emitting functional portion 131 may also include a hole injection layer, a hole transport layer, an electron transport layer, an electron injection layer and other film layers to help improve the light-emitting performance.

[0101] In the display panel 100 in the embodiment of the present application, the first electrode layer 150 includes a plurality of first electrode portions 151 arranged at intervals, and the light-emitting functional layer 130 includes a plurality of light-emitting functional portions 131 arranged at intervals, so that the light-emitting functional portions 131 between different sub-pixels are arranged at intervals, and there is no common layer. Thus, the lateral leakage between different sub-pixels can be improved, which is conducive to improving the display effect.

[0102] In addition, the display panel 100 is further provided with a plurality of auxiliary electrodes 200, and the orthographic projection of the auxiliary electrodes 200 on the substrate 110 is located on at least one side of the orthographic projection of the light-emitting functional portion 131 on the substrate 110. The first electrode portion 151 is electrically connected to the auxiliary electrodes 200. In this arrangement, by electrically connecting the auxiliary electrodes 200 to the first electrode layer 150 and arranging the auxiliary electrodes 200 in the receiving portion 162 of the insulating layer 160, a power signal can be provided to the first electrode layer 150 through the auxiliary electrodes 200, and at the same time, the relative area of ​​the first electrode portion 151 is increased, so that the impedance of the first electrode layer 150 can be reduced, and then the uniformity of the brightness of the display screen of the display panel 100 can be improved.

[0103] In some embodiments, the orthographic projection of the auxiliary electrode 200 on the substrate 110 is disposed at least partially around the orthographic projection of the light-emitting functional portion 131 on the substrate 110 .

[0104] For example, Fig.15 , Fig.16 As shown, the orthographic projection of the auxiliary electrode 200 on the substrate 110 is a closed ring structure, or the orthographic projection of the auxiliary electrode 200 on the substrate 110 is a dot structure or a straight line structure arranged at intervals.

[0105] In this way, a corresponding relationship between the auxiliary electrode 200 and the light-emitting functional part 131 can be constructed. In addition, the number of the auxiliary electrode 200 corresponding to each light-emitting functional part 131 is at least one.

[0106] In some embodiments, the receiving portion 162 is configured as an opening on the insulating layer 160 .

[0107] Furthermore, the accommodation portion 162 is arranged to expand outward from one end close to the substrate 110 to one end far from the substrate 110 , thereby facilitating improving the adhesion stability between the auxiliary electrode 200 and the accommodation portion 162 and increasing the area of ​​the auxiliary electrode 200 .

[0108] Specifically, the cross-sectional shape of the opening may be an inverted triangle or an inverted trapezoid, so that the constructed opening is arranged in an outward expansion manner from an end close to the substrate 110 to an end far away from the substrate 110 .

[0109] Furthermore, the opening may be a through hole or a blind hole, and may be specifically configured according to actual use requirements.

[0110] In some embodiments, the auxiliary electrode 200 covers at least a portion of the sidewall of the opening, thereby facilitating the adhesion stability between the auxiliary electrode 200 and the sidewall of the opening.

[0111] In some embodiments, the auxiliary electrode 200 is a V-shaped structure. The auxiliary electrode 200 is designed with a V-shaped structure, which can increase the length of the auxiliary electrode 200 within a limited thickness and width range, thereby better playing the function of optimizing impedance.

[0112] In addition, the height of the auxiliary electrode 200 may be set lower than the receiving portion 162 , so that the auxiliary electrode 200 can be prevented from contacting the light emitting function portion 131 .

[0113] Furthermore, the side wall of the first electrode portion 151 may extend to the receiving portion 162 and overlap with the auxiliary electrode 200 , thereby ensuring a larger contact area between the first electrode portion 151 and the auxiliary electrode 200 to improve the overlapping stability therebetween.

[0114] In some embodiments, at least one accommodation portion 162 is provided between adjacent light-emitting functional portions 131 , so that the auxiliary electrode 200 is at least located between adjacent light-emitting functional portions 131 . This arrangement facilitates the establishment of an electrical connection between the auxiliary electrodes 200 corresponding to adjacent light-emitting functional portions 131 .

[0115] In one of the embodiments, two spaced-apart accommodating portions 162 are provided between adjacent light-emitting functional portions 131, and the auxiliary electrodes 200 corresponding to the adjacent light-emitting functional portions 131 are respectively provided in the two accommodating portions 162, so as to facilitate the correspondence between the light-emitting functional portions 131 and the auxiliary electrodes 200, and to more easily establish an electrode relationship, so that the first electrode portions 151 corresponding to the adjacent light-emitting functional portions 131 can be more easily electrically connected through the auxiliary electrodes 200.

[0116] In another embodiment, an accommodating portion 162 is provided between adjacent light-emitting functional portions 131, and the auxiliary electrodes 200 corresponding to the adjacent light-emitting functional portions 131 are located in the same accommodating portion 162. Based on this, the two auxiliary electrodes 200 located in the same accommodating portion 162 can be connected to each other as a whole, or connected to each other through a wire. Alternatively, the two auxiliary electrodes 200 located in the same accommodating portion 162 are separately provided, respectively attached to the opposite side walls of the accommodating portion 162, and disconnected at the bottom wall of the accommodating portion 162; so that the first electrode portions 151 corresponding to the adjacent light-emitting functional portions 131 can be electrically connected through the auxiliary electrodes 200.

[0117] In some embodiments, Figure 3 As shown, the auxiliary electrodes 200 corresponding to adjacent light-emitting functional parts 131 are spaced apart from each other and insulated from each other, so that different first electrode parts 151 can be insulated from each other, which is conducive to realizing independent control of cathodes of different sub-pixels.

[0118] In some embodiments, Figure 2 , Figure 4 As shown, the plurality of light-emitting functional parts 131 include a first light-emitting functional part 131a and a second light-emitting functional part 131b, and the plurality of auxiliary electrodes 200 include a first auxiliary electrode 200a corresponding to the first light-emitting part and a second auxiliary electrode 200b corresponding to the second light-emitting functional part 131b. The display panel 100 further includes a first voltage signal line 810 and a second voltage signal line 820, the first voltage signal line 810 is used to provide a first voltage, the second voltage signal line 820 is used to provide a second voltage, and the first voltage is not equal to the second voltage; the first auxiliary electrode 200a is electrically connected to the first voltage signal line 810, and the second auxiliary electrode 200b is electrically connected to the second voltage signal line 820.

[0119] In this embodiment, the first voltage signal line 810 is electrically connected to the first auxiliary electrode 200a, and is used to provide a first voltage to the first electrode portion 151 electrically connected to the first auxiliary electrode 200a; the second voltage signal line 820 is electrically connected to the second auxiliary electrode 200b, and is used to provide a second voltage to the first electrode portion 151 electrically connected to the second auxiliary electrode 200b, wherein the first voltage and the second voltage may be equal or unequal. Thus, different voltages are provided to the cathodes of different sub-pixels. In this way, it is beneficial to improve the display effect of the display panel 100 by adjusting the voltage.

[0120] In a specific example, the first light-emitting functional unit 131a is configured to emit a first color light, and the second light-emitting functional unit 131b is configured to emit a second color light. Thus, it is possible to independently power the cathode of the first color sub-pixel and the cathode of the second color sub-pixel. Since the start-up voltages of sub-pixels of different colors are different, providing different voltages to the cathode of the first color sub-pixel and the cathode of the second color sub-pixel is beneficial to improving the display effect of the display panel 100, and at the same time, it is also beneficial to reduce power consumption at high brightness.

[0121] In some embodiments, the plurality of light-emitting functional units 131 further include a third light-emitting functional unit 131c, and the plurality of auxiliary electrodes 200 further include a third auxiliary electrode 200c corresponding to the third light-emitting functional unit 131c. The display panel 100 further includes a third voltage line signal line, and the third voltage signal line 830 is used to provide a third voltage, wherein the third voltage may be equal to or unequal to any one of the first voltage and the second voltage; the third auxiliary electrode 200c is electrically connected to the third voltage signal line 830. That is, the display panel 100 in the embodiment of the present application can provide three different voltages for the cathodes of different sub-pixels.

[0122] Further, the third light-emitting functional part 131c is configured to emit a third color light. In this way, the first voltage signal line 810, the second voltage signal line 820 and the third voltage signal line 830 can be used to independently power the cathode of the first color sub-pixel, the cathode of the second color sub-pixel and the cathode of the third color sub-pixel, thereby providing different voltages to the cathode of the first color sub-pixel, the cathode of the second color sub-pixel and the cathode of the third color sub-pixel, thereby further improving the display effect of the display panel 100 and further reducing power consumption at high brightness.

[0123] Further, the first color light, the second color light and the third color light may be, for example, blue light, red light and green light.

[0124] In a specific example, the first voltage signal line 810 , the second voltage signal line 820 , and the third voltage signal line 830 are negative voltage power signal lines that can be used to provide cathode voltages.

[0125] In a specific example, the first auxiliary electrode 200a and the second auxiliary electrode 200b may be distributed in different areas. Fig. 9 , the display panel 100 has a display area 101 and a binding area 102 located on one side of the display area 101, wherein the display area 101 can be divided into a first area 103 and a second area 104 according to the distance from the binding area 102 from near to far, that is, the second area 104 is located on the side of the first area 103 away from the binding area 102. It is not difficult to understand that if the same voltage signal line is used for the first area 103 and the second area 104, there will be an obvious voltage drop when the voltage signal line extends to the second area 104, resulting in uneven display brightness in different areas. Therefore, the first area 103 and the second area 104 can provide cathode voltages through different voltage signal lines to improve the problem of uneven display brightness in different areas.

[0126] In some embodiments, Figure 5 As shown, the auxiliary electrodes 200 corresponding to the adjacent light-emitting functional parts 131 are electrically connected to each other. In this case, by electrically connecting the auxiliary electrodes 200 corresponding to the adjacent light-emitting functional parts 131 to each other, the adjacent first electrode parts 151 can be electrically connected to each other. When the display panel 100 is designed so that the cathodes of different sub-pixels do not need to be independently powered, the different first electrode parts 151 can be electrically connected to each other in the above manner, which is conducive to reducing the number of voltage signal lines used to power the first electrode parts 151. Since the voltage signal lines usually occupy the frame area of ​​the display panel 100, reducing the number of voltage signal lines is also conducive to reducing the size of the frame area of ​​the display panel 100, thereby facilitating an increase in the screen-to-body ratio of the display device 10.

[0127] In one specific embodiment, Figure 5 As shown, the auxiliary electrodes 200 corresponding to the adjacent light-emitting functional parts 131 are connected as one body, the auxiliary electrodes 200 corresponding to the adjacent light-emitting functional parts 131 are located in the same accommodation part 162, and the orthographic projection of the auxiliary electrode 200 on the substrate 110 is located between the orthographic projections of the adjacent light-emitting functional parts 131 on the substrate 110. The light-emitting functional parts 131 are separated by a plurality of pixel definition parts located in the insulating layer 160, that is, there are pixel definition parts between the adjacent light-emitting functional parts 131, and the pixel definition parts can be arranged in any insulating film layer in the pixel definition layer, the planarization layer or the driving circuit layer to achieve isolation and insulation of the light-emitting functional parts 131. The accommodation part 162 is provided on the pixel definition part, and the auxiliary electrode 200 of the integral structure is located in the accommodation part 162. In this way, the auxiliary electrodes 200 corresponding to the adjacent light-emitting functional parts 131 can be electrically connected to each other, so that the adjacent first electrode parts 151 can be electrically connected to each other.

[0128] Furthermore, the display panel 100 further includes an isolation structure 140, which separates adjacent light-emitting functional parts 131, and the isolation structure 140 can be disposed on a side of the auxiliary electrode 200 away from the substrate 110. Regardless of whether the material of the isolation structure 140 is a conductive material or a non-conductive material, the isolation structure 140 can be in contact with the auxiliary electrode 200.

[0129] In a specific example, the auxiliary electrode 200 may cover the sidewall and bottom of the receiving portion 162, the height of the auxiliary electrode 200 is lower than the height of the insulating layer 160, a pit structure is formed on the side of the auxiliary electrode 200 away from the substrate 110, the isolation structure 140 is disposed in the pit structure of the auxiliary electrode 200, and the bottom wall of the isolation structure 140 is lower than the upper surface of the insulating layer 160. At this time, a portion of the isolation structure 140 is also in the receiving portion 162.

[0130] In another specific embodiment, Figure 6 As shown, the display panel 100 further includes an isolation structure 140, the isolation structure 140 separates adjacent light-emitting functional parts 131, the isolation structure 140 includes a conductive material, and the auxiliary electrodes 200 corresponding to the adjacent light-emitting functional parts 131 are electrically connected through the isolation structure 140. In this way, the auxiliary electrodes 200 corresponding to the adjacent light-emitting functional parts 131 can be electrically connected to each other through the isolation structure 140.

[0131] Specifically, a side of the auxiliary electrode 200 close to the isolation structure 140 may overlap with the isolation structure 140 , thereby achieving electrical connection between the two.

[0132] In a specific example, the auxiliary electrodes 200 corresponding to adjacent light-emitting functional parts 131 are located in the same accommodation part 162 , and the isolation structure 140 is arranged on the side of the auxiliary electrode 200 away from the substrate 110 , so that the auxiliary electrodes 200 in the same accommodation part 162 can be electrically connected through the isolation structure 140 .

[0133] In another specific example, two spaced accommodation portions 162 are provided between adjacent light-emitting functional portions 131, and the isolation structure 140 is provided between the two accommodation portions 162. A portion of the auxiliary electrodes 200 in the two accommodation portions 162 extends outside the accommodation portions 162 and overlaps with the isolation structure 140 between the two accommodation portions 162 to achieve electrical connection between two adjacent auxiliary electrodes 200.

[0134] In some embodiments, the isolation structure 140 includes an isolation body 141 and a blocking portion 142, wherein the blocking portion 142 is disposed on a side of the isolation body 141 facing away from the substrate 110, and the orthographic projection of the isolation body 141 on the substrate 110 is located within the orthographic projection of the blocking portion 142 on the substrate 110. The blocking portion 142 is located on a side of the isolation body 141 facing away from the substrate 110, and the orthographic projection of the isolation body 141 on the substrate 110 is located within the orthographic projection of the blocking portion 142 on the substrate 110, and is arranged in such a way that a certain distance is provided between the bottom surface edge of the blocking portion 142 and the top surface edge of the isolation body 141, so that the portion of the blocking portion 142 that exceeds the edge of the isolation body 141 forms a step structure, and the step structure is conducive to the light-emitting material layers formed on different sides of the isolation structure 140 being isolated from each other.

[0135] In some embodiments, the orthographic projection of at least part of the auxiliary electrode 200 on the substrate 110 is located between the orthographic projection of the isolator 141 on the substrate 110 and the orthographic projection of the light-emitting functional portion 131 on the substrate 110. Specifically, the accommodation portion 162 may be disposed between the light-emitting functional portion 131 and the isolator 141, thereby making the orthographic projection of the auxiliary electrode 200 located in the accommodation portion 162 on the substrate between the orthographic projection of the light-emitting functional portion 131 on the substrate 110 and the orthographic projection of the isolator 141 on the substrate 110.

[0136] The light-emitting functional part 131 is separated by a plurality of pixel definition parts located in the insulating layer 160, that is, there is a pixel definition part between adjacent light-emitting functional parts 131, and two spaced accommodation parts 162 are provided on the pixel definition part, and an auxiliary electrode 200 is correspondingly provided in each accommodation part 162. The isolation structure 140 is located on the pixel definition part between the two auxiliary electrodes 200. Among them, the side of the two auxiliary electrodes 200 close to each other can extend to the top of the accommodation part 162 and overlap the isolation structure 140.

[0137] Furthermore, the auxiliary electrode 200 may be a V-shaped structure covering the two opposite side walls of the receiving portion 162, or may be an "I"-shaped structure covering the side wall of one side of the receiving portion 162. When the auxiliary electrode 200 is a V-shaped structure, the first electrode portion 151 corresponding to the light-emitting functional portion 131 may partially extend to the receiving portion 162 and overlap with the auxiliary electrode 200. One side of the first electrode portion 151 close to the receiving portion 162 covers the insulating layer 160 and extends into the receiving portion 162.

[0138] When the auxiliary electrode 200 is in a straight line structure and covers the side wall of the accommodation portion 162 close to the light-emitting functional portion 131, the first electrode portion 151 corresponding to the light-emitting functional portion 131 may extend to the side wall and overlap with the upper end of the auxiliary electrode 200. When the auxiliary electrode 200 is in a straight line structure and covers the side wall of the accommodation portion 162 away from the light-emitting functional portion 131, the first electrode portion 151 corresponding to the light-emitting functional portion 131 may extend to the bottom of the accommodation portion 162 and overlap with the lower end of the auxiliary electrode 200.

[0139] Further, the orthographic projection of the spacer 141 on the substrate 110 is located between the orthographic projections of the adjacent auxiliary electrodes 200 on the substrate 110, and the auxiliary electrode 200 overlaps the spacer 141 on the side close to the spacer 141. Thus, the auxiliary electrodes 200 corresponding to the adjacent light-emitting functional parts 131 can be electrically connected to each other through the spacer 141. The spacer 141 is located on the side of the insulating layer 160 facing away from the substrate 110 between the adjacent light-emitting functional parts 131, and the two receiving parts 162 located on the same pixel definition part are respectively arranged on both sides of the spacer 141. The side of the auxiliary electrodes 200 close to each other can overlap the spacer.

[0140] In some embodiments, Figure 3 or Figure 5 As shown, the display panel 100 further includes a second electrode layer 120 disposed on the substrate 110 . The second electrode layer 120 includes a plurality of second electrode portions 121 disposed at intervals. The light emitting functional portion 131 is disposed on a side of the second electrode portion 121 away from the substrate 110 .

[0141] Specifically, the second electrode layer 120 may be an anode layer of the display panel 100 . The second electrode layer 120 includes a plurality of second electrode portions 121 arranged at intervals. The second electrode portions 121 may be anodes of OLED light emitting elements.

[0142] In one specific embodiment, Figure 3 , Figure 6 , Figure 7 , Figure 8As shown, the insulating layer 160 includes a pixel definition layer 165, which is disposed on the side of the second electrode layer 120 away from the substrate 110, and is used to isolate and insulate the adjacent second electrode portion 121. The pixel definition layer 165 is provided with a plurality of first openings 161 for exposing the second electrode portion 121, and the light-emitting functional portion 131 is at least partially disposed in the first openings 161. The accommodation portion 162 is located in the pixel definition layer 165.

[0143] Specifically, the pixel definition layer 165 includes a plurality of pixel definition parts, the pixel definition parts enclose a first opening 161, and at least one accommodation part 162 opened in the pixel definition part is provided between two adjacent first openings 161. For example, one accommodation part 162 may be provided between two adjacent first openings 161, or two accommodation parts 162 may be provided between two adjacent first openings 161. In this way, one accommodation part 162 or two accommodation parts 162 are provided between two adjacent light-emitting function parts 131.

[0144] In another specific embodiment, Fig.13 , Fig.14 As shown, the insulating layer 160 includes a planarization layer 166 , and the second electrode layer 120 is disposed on a side of the planarization layer 166 facing away from the substrate 110 . The receiving portion 162 is located on the planarization layer 166 .

[0145] Furthermore, if Fig.13 , Fig.14 As shown, the insulating layer 166 may further include an insulating portion 167, which is disposed on a side of the planarizing layer 166 away from the substrate 110 and surrounds the second electrode portion 121. In other words, the insulating portion 167 is a edging structure covering the edge of the second electrode portion 121.

[0146] In another specific embodiment, the insulating layer 160 includes a combination of a pixel definition layer 165 and a planarization layer 166, wherein the planarization layer 166 is located on one side of the substrate 110, the pixel definition layer 165 is located on a side of the planarization layer 166 away from the substrate 110, and the accommodating portion 162 is at least partially located in the pixel definition layer 165.

[0147] Furthermore, the accommodation portion 162 may extend through the pixel definition layer 165 and into the planarization layer 166 .

[0148] Optionally, the pixel definition layer 165 includes an inorganic material (eg, silicon nitride), which has good electrical insulation properties, so that different second electrode portions 121 can be isolated and insulated.

[0149] In some embodiments, Figure 7 , Figure 8As shown, the display panel 100 further includes a third electrode portion 300, which is disposed on one side of the insulating layer 160 close to the substrate 110, and the orthographic projection of at least part of the third electrode portion 300 on the substrate 110 coincides with the orthographic projection of the auxiliary electrode 200 on the substrate 110, and the auxiliary electrode 200 is electrically connected to the third electrode portion 300. In this embodiment, the auxiliary electrode 200 is electrically connected to the corresponding third electrode portion 300, thereby further reducing the transmission resistance of the first electrode portion 151, thereby further reducing the voltage drop of the first electrode layer 150, and further improving the uniformity of the brightness of the display screen of the display panel 100.

[0150] The third electrode portion 300 may be as shown in the attached drawings, or may be any metal layer in the driving circuit layer.

[0151] In one example, one auxiliary electrode 200 corresponds to one third electrode portion 300 , the third electrode portion 300 is disposed below the auxiliary electrode 200 , and the bottom of the auxiliary electrode 200 is electrically connected to the corresponding third electrode portion 300 .

[0152] In another example, a plurality of auxiliary electrodes 200 corresponds to one third electrode portion 300 , the third electrode portion 300 is disposed below the auxiliary electrodes 200 , and the bottoms of the plurality of auxiliary electrodes 200 are electrically connected to the corresponding third electrode portion 300 .

[0153] Specifically, the third electrode portion 300 and the receiving portion 162 are both located in the insulating layer 160 , and the third electrode portion 300 may be located below the receiving portion 162 . When the receiving portion 162 is a through hole, the bottom of the auxiliary electrode 200 may be directly connected to the third electrode portion 300 .

[0154] Furthermore, the third electrode portion 300 is disposed in the same layer as the second electrode portion 121. The third electrode portion 300 is disposed in the same layer as the second electrode portion 121, so that the third electrode portion 300 and the second electrode portion 121 can be manufactured through the same manufacturing process and can share a mask plate, thereby facilitating improved production efficiency and reduced production costs.

[0155] In a specific example, Figure 7 As shown, gaps may be provided between adjacent third electrode portions 300. That is, different third electrode portions 300 are not connected to each other to maintain an insulation relationship. When the display panel 100 is designed to require independent control of cathodes of different sub-pixels, the above arrangement may be adopted to maintain mutual insulation between the first electrode portions 151 of different sub-pixels.

[0156] In another specific example, Figure 8As shown, adjacent third electrode portions 300 are connected to each other. When the display panel 100 is designed so that the cathodes of different sub-pixels do not need to be independently controlled, the adjacent third electrode portions 300 can be connected to each other, so that the cathodes of adjacent sub-pixels can be electrically connected to each other through the interconnected third electrode portions 300.

[0157] Furthermore, the accommodation portion 162 may be an opening on the insulating layer 160 , for example, a through hole or a blind hole.

[0158] Further, the orthographic projection of the accommodating portion 162 on the substrate 110 is located within the orthographic projection of the third electrode portion 300 on the substrate 110, and the accommodating portion exposes the third electrode portion 300. On the one hand, the auxiliary electrode 200 is disposed in the accommodating portion 162, and in this way, the thickness of the display panel 100 will not be increased due to the provision of the auxiliary electrode 200. On the other hand, the orthographic projection of the accommodating portion 162 on the substrate 110 is located within the orthographic projection of the third electrode portion 300 on the substrate 110 and the accommodating portion 162 exposes the third electrode portion 300, thereby enabling the auxiliary electrode 200 located in the accommodating portion 162 to be electrically connected to the third electrode portion 300.

[0159] In some embodiments, the display panel 100 further includes an isolation structure 140 , which is used to isolate the light-emitting functional part 131 . The isolation structure 140 includes an isolation body 141 , which is disposed on one side of the substrate 110 and isolates the light-emitting functional part 131 .

[0160] Furthermore, the orthographic projection of the isolator 141 on the substrate 110 has no overlapping area with the orthographic projection of the first opening 161 on the substrate 110 , thereby facilitating preventing the partition structure 140 from blocking the light emitted by the light-emitting functional part 131 .

[0161] Furthermore, the isolation structure 140 may further include a blocking portion 142 , which is disposed on a side of the isolation body 141 facing away from the substrate 110 , and an orthographic projection of the isolation body 141 on the substrate 110 is located within an orthographic projection of the blocking portion 142 on the substrate 110 .

[0162] The blocking portion 142 is located on the side of the isolation body 141 facing away from the substrate 110, and the orthographic projection of the isolation body 141 on the substrate 110 is located within the orthographic projection of the blocking portion 142 on the substrate 110. It is arranged in this way that there is a certain distance between the bottom surface edge of the blocking portion 142 and the top surface edge of the isolation body 141, so that the portion of the blocking portion 142 that exceeds the edge of the isolation body 141 forms a step structure, which is beneficial for isolating the light-emitting material layers formed on different sides of the isolation structure 140 from each other during the evaporation process.

[0163] Furthermore, the isolation structure 140 can define a plurality of second openings 145, and the light-emitting functional portion 131 and the first electrode portion 151 can be disposed in the second openings 145, so that the light-emitting functional portions 131 located in different second openings 145 are isolated from each other, and the first electrode portions 151 located in different second openings 145 are isolated from each other.

[0164] The second openings 145 and the light-emitting functional parts 131 may have a one-to-one correspondence, that is, one light-emitting functional part 131 is disposed in each second opening 145. The second openings 145 and the light-emitting functional parts 131 may not have a one-to-one correspondence, that is, multiple light-emitting functional parts 131 may be disposed in each second opening 145.

[0165] In one specific embodiment, the isolator 141 is made of a non-conductive material.

[0166] In another specific embodiment, Figure 6 As shown, the spacer 141 includes a conductive material, and the auxiliary electrode 200 is electrically connected to the spacer 141. That is, adjacent auxiliary electrodes 200 are also electrically connected to each other through the spacer 141. This arrangement can be used when the display panel 100 is designed to not require independent control of cathodes of different sub-pixels.

[0167] Furthermore, the side of the auxiliary electrode 200 close to the isolating body 141 can overlap with the isolating body 141, so that the auxiliary electrode 200 and the isolating body 141 are electrically connected. Figure 6 ), or it can be overlapped at the bottom of the isolator 141 (please refer to Figure 5 ).

[0168] Furthermore, the orthographic projection of at least part of the auxiliary electrode 200 on the substrate 110 is located between the orthographic projection of the spacer 141 on the substrate 110 and the orthographic projection of the light-emitting functional portion 131 on the substrate 110. This arrangement facilitates the electrical connection between the auxiliary electrode 200 and the first electrode portion 151, and also makes it easier to electrically connect the auxiliary electrodes 200 corresponding to different light-emitting functional portions 131.

[0169] Furthermore, the isolation structure 140 may be disposed on a side of the insulating layer 160 facing away from the substrate 110 . When the isolation body 141 of the isolation structure 140 includes a conductive material, the insulating layer 160 is also used to maintain insulation between the isolation body 141 and the second electrode portion 121 .

[0170] Furthermore, the isolation structure 140 may also be disposed on the side of the auxiliary electrode 200 that is away from the substrate 110. When the material of the isolation body 141 is a non-conductive material, or the isolation body 141 includes a conductive material, but the display panel 100 does not need to independently control the cathodes of different sub-pixels, the isolation structure 140 may also be disposed on the side of the auxiliary electrode 200 that is away from the substrate 110.

[0171] In some embodiments, Figure 2 , Figure 3 As shown, the isolation structure 140 defines a plurality of second openings 145, and the light-emitting functional parts 131 and the first electrode parts 151 are both disposed in the second openings 145. Thus, the light-emitting functional parts 131 in different second openings 145 are isolated from each other, and the first electrode parts 151 in different second openings 145 are isolated from each other.

[0172] Furthermore, the orthographic projection of the isolation structure 140 on the substrate 110 may be in a grid shape, or the orthographic projection of the isolation structure 140 on the substrate 110 may include independent ring structures. In the latter case, each ring structure forms an isolation unit surrounding the light-emitting functional part 131 .

[0173] In some embodiments, the display panel 100 further includes a first encapsulation layer 170, and the first encapsulation layer 170 includes a plurality of encapsulation parts 171 arranged at intervals, and the encapsulation parts 171 are arranged corresponding to the light-emitting functional parts 131, and the encapsulation parts 171 are in contact with the isolation structure 140. In this way, the light-emitting functional parts 131 can be independently encapsulated and protected one by one through the encapsulation parts 171, and the arrangement of the accommodating parts 162 can also increase the encapsulation thickness of the first encapsulation layer 170 on the side of the light-emitting functional parts 131, thereby improving the encapsulation effect.

[0174] Furthermore, the display panel 100 further includes a second encapsulation layer 180, which is located on a side of the first encapsulation layer 170 away from the substrate 110, and a portion of the second encapsulation layer 180 covers the first encapsulation layer 170 and the isolation structure 140. The first encapsulation layer 170 encapsulates the light-emitting functional parts 131 one by one through the encapsulation parts 171 arranged at intervals, and the second encapsulation layer 180 can be encapsulated on the entire surface, thereby further improving the encapsulation performance.

[0175] Furthermore, the display panel 100 further includes a third encapsulation layer 190, which is located on the side of the second encapsulation layer 180 away from the substrate 110. Thus, multi-layer encapsulation is achieved through the first encapsulation layer 170, the second encapsulation layer 180 and the third encapsulation layer 190 to further improve the encapsulation performance.

[0176] Specifically, the first encapsulation layer 170 and the third encapsulation layer 190 are inorganic encapsulation layers, and the second encapsulation layer 180 is an organic encapsulation layer. The inorganic encapsulation layer mainly serves to isolate water vapor and oxygen to prevent water vapor or oxygen from invading and causing the light-emitting functional unit 131 to fail in performance. The organic encapsulation layer is mainly used to provide flexibility and can also serve to flatten the first encapsulation layer 170.

[0177] The embodiment of the second aspect of the present application provides a display panel 100, which includes a substrate 110, a light-emitting functional layer 130, a first electrode layer 150, an insulating layer 160, an isolation structure 140 and an auxiliary electrode 200. The light-emitting functional layer 130 is arranged on one side of the substrate 110, and the light-emitting functional layer 130 includes a plurality of light-emitting functional parts 131 arranged at intervals. The first electrode layer 150 is arranged on the side of the light-emitting functional layer 130 away from the substrate 110, and the first electrode layer 150 includes a plurality of first electrode parts 151 arranged at intervals. The first electrode part 151 is arranged on the side of the light-emitting functional part 131 away from the substrate 110. The insulating layer 160 is arranged on one side of the substrate 110, and the insulating layer 160 is provided with a receiving part 162. The isolation structure 140 is arranged on the side of the insulating layer 160 away from the substrate 110, and the isolation structure 160 encloses a second opening 145, and the light-emitting functional part 131 is located in the second opening 145. The isolation structure 140 includes an isolation body 141 arranged close to the substrate 110. The auxiliary electrode 200 is at least partially disposed in the accommodating portion 162 , is electrically connected to the first electrode portion 151 , and at least a portion of the auxiliary electrode 200 is projected on the substrate 110 between the projection of the isolator 141 on the substrate 110 and the projection of the light-emitting functional portion 131 on the substrate 110 .

[0178] In the display panel 100 in the embodiment of the present application, the first electrode layer 150 includes a plurality of first electrode portions 151 arranged at intervals, and the light-emitting functional layer 130 includes a plurality of light-emitting functional portions 131 arranged at intervals, so that the light-emitting functional portions 131 between different sub-pixels are arranged at intervals, and there is no common layer. Thus, the lateral leakage between different sub-pixels can be improved, which is conducive to improving the display effect.

[0179] In addition, the display panel 100 is further provided with an auxiliary electrode 200, the auxiliary electrode 200 is electrically connected to the first electrode portion 151, and at least a portion of the auxiliary electrode 200 is located between the orthographic projection of the spacer 141 on the substrate 110 and the orthographic projection of the light-emitting functional portion 131 on the substrate 110. In this arrangement, by electrically connecting the auxiliary electrode 200 to the first electrode layer 150 and arranging the auxiliary electrode 200 in the receiving portion 162 of the insulating layer 160, the relative area of ​​the first electrode portion 151 can be increased, thereby reducing the impedance of the first electrode layer 150, and further improving the uniformity of the brightness of the display screen of the display panel 100.

[0180] The third aspect of the present application provides a display device 10, such as Figure 1 As shown, the display device 10 includes the display panel 100 in any embodiment of the first aspect. The display device 10 can be, for example, a display, a television, a digital camera, a mobile phone, a tablet computer, a navigator, or any other product or component with a display function.

[0181] In the display device 10 in the embodiment of the present application, the first electrode layer 150 in the display panel includes a plurality of first electrode portions 151 arranged at intervals, and the light-emitting functional layer 130 includes a plurality of light-emitting functional portions 131 arranged at intervals, so that the light-emitting functional portions 131 between different sub-pixels are arranged at intervals, and there is no common layer. Thus, the lateral leakage between different sub-pixels can be improved, which is conducive to improving the display effect.

[0182] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0183] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: substrate; A light-emitting functional layer is disposed on one side of the substrate, and the light-emitting functional layer includes a plurality of light-emitting functional parts disposed at intervals; A first electrode layer is arranged on a side of the light-emitting functional layer away from the substrate; the first electrode layer comprises a plurality of first electrode portions arranged at intervals; a plurality of auxiliary electrodes, wherein the auxiliary electrodes are electrically connected to the first electrode portion; An insulating layer, disposed on one side of the substrate, the insulating layer being provided with a receiving portion, and the auxiliary electrode being at least partially disposed in the receiving portion; The orthographic projection of the auxiliary electrode on the substrate is located on at least one side of the orthographic projection of the light-emitting functional portion on the substrate.

2. The display panel according to claim 1, characterized in that: The orthographic projection of the auxiliary electrode on the substrate at least partially surrounds the orthographic projection of the light-emitting functional part on the substrate; Optionally, the orthographic projection of the auxiliary electrode on the substrate is a closed ring structure, or the orthographic projection of the auxiliary electrode on the substrate is a dot structure or a straight line structure arranged at intervals.

3. The display panel according to claim 1, characterized in that: The receiving portion is configured as an opening on the insulating layer; Optionally, the accommodation portion is arranged in an outwardly expanding manner from an end close to the substrate to an end far from the substrate; Optionally, the cross-sectional shape of the opening is an inverted triangle or an inverted trapezoid; Optionally, the opening is a through hole; Optionally, the opening is a blind hole; Optionally, the auxiliary electrode covers at least a portion of a side wall of the opening; Optionally, the auxiliary electrode is a V-shaped structure; Optionally, the side wall of the first electrode portion extends to the accommodation portion and overlaps with the auxiliary electrode; Optionally, at least one of the accommodating portions is provided between adjacent light-emitting functional portions; Optionally, two spaced-apart accommodating portions are provided between adjacent light-emitting functional portions, and the auxiliary electrodes corresponding to the adjacent light-emitting functional portions are respectively provided in the two accommodating portions; Optionally, one accommodating portion is provided between adjacent light-emitting functional portions, and the auxiliary electrodes corresponding to adjacent light-emitting functional portions are located in the same accommodating portion.

4. The display panel according to claim 1, characterized in that: The auxiliary electrodes corresponding to the adjacent light-emitting functional parts are spaced apart from each other and insulated from each other; Optionally, the plurality of light-emitting functional parts include a first light-emitting functional part and a second light-emitting functional part; The plurality of auxiliary electrodes include a first auxiliary electrode corresponding to the first light-emitting portion and a second auxiliary electrode corresponding to the second light-emitting functional portion; The display panel further comprises a first voltage signal line and a second voltage signal line, wherein the first voltage signal line is used to provide a first voltage, and the second voltage signal line is used to provide a second voltage; The first auxiliary electrode is electrically connected to the first voltage signal line, and the second auxiliary electrode is electrically connected to the second voltage signal line; Optionally, the first light-emitting functional portion is configured to emit light of a first color, and the second light-emitting functional portion is configured to emit light of a second color; Optionally, the plurality of light-emitting functional parts further include a third light-emitting functional part, and the plurality of auxiliary electrodes further include a third auxiliary electrode corresponding to the third light-emitting functional part; The display panel further comprises a third voltage signal line, the third voltage signal line is used to provide a third voltage, and the third auxiliary electrode is electrically connected to the third voltage signal line; Optionally, the third light-emitting functional portion is configured to emit a third color light; Optionally, the first voltage signal line, the second voltage signal line and the third voltage signal line are negative voltage power supply signal lines.

5. The method according to claim 1 is characterized in that: The auxiliary electrodes corresponding to the adjacent light-emitting functional parts are electrically connected to each other; Optionally, the auxiliary electrodes corresponding to the adjacent light-emitting functional parts are connected as a whole, the auxiliary electrodes corresponding to the adjacent light-emitting functional parts are located in the same accommodation part, and the orthographic projection of the auxiliary electrode on the substrate is located between the orthographic projections of the adjacent light-emitting functional parts on the substrate; Optionally, the display panel further comprises an isolation structure, wherein the isolation structure separates adjacent light-emitting functional parts, and the isolation structure is arranged on a side of the auxiliary electrode away from the substrate; Optionally, the isolation structure comprises a conductive material, and the auxiliary electrodes corresponding to adjacent light-emitting functional parts are electrically connected via the isolation structure; Optionally, the auxiliary electrodes corresponding to the adjacent light-emitting functional parts are located in the same accommodation part, and the isolation structure is located in the accommodation part and on a side of the auxiliary electrode away from the substrate; Optionally, two spaced accommodation parts are provided on the insulating layer between adjacent light-emitting functional parts, auxiliary electrodes corresponding to adjacent light-emitting functional parts are respectively provided in the accommodation parts, and the isolation structure is provided between the two accommodation parts; Optionally, the isolation structure includes an isolation body and a blocking part, the blocking part is provided on a side of the isolation body away from the substrate, and the orthographic projection of the isolation body on the substrate is located within the orthographic projection of the blocking part on the substrate; Optionally, at least a portion of the orthographic projection of the auxiliary electrode on the substrate is located between the orthographic projection of the spacer on the substrate and the orthographic projection of the light-emitting functional portion on the substrate; Optionally, two auxiliary electrodes are arranged at intervals on the insulating layer between adjacent light-emitting functional parts, and the orthographic projection of the isolator on the substrate is located between the orthographic projections of adjacent auxiliary electrodes on the substrate; Optionally, the auxiliary electrode overlaps the isolating body at a side close to the isolating body.

6. The display panel according to claim 1, characterized in that: Also includes a second electrode layer disposed on the substrate; The second electrode layer includes a plurality of second electrode portions arranged at intervals, and the light-emitting functional portion is arranged on a side of the second electrode portion away from the substrate; Optionally, the insulating layer includes a pixel definition layer, the pixel definition layer is disposed on one side of the substrate, the pixel definition layer is used to isolate and insulate adjacent second electrode portions, and a plurality of first openings for exposing the second electrode portions are disposed on the pixel definition layer; The light-emitting functional portion is at least partially disposed in the first opening; The accommodation portion is located in the pixel definition layer; Optionally, the insulating layer includes a planarization layer, and the second electrode layer is arranged on a side of the planarization layer away from the substrate; The accommodation portion is located in the planarization layer; Optionally, the insulating layer further includes an insulating portion, which is disposed on a side of the planarization layer away from the substrate and is disposed around the second electrode portion; Optionally, the insulating layer comprises a combination of a pixel definition layer and a planarization layer, the planarization layer is located on one side of the substrate, the pixel definition layer is located on a side of the planarization layer away from the substrate, and the accommodation portion is at least partially located in the pixel definition layer; Optionally, the accommodation portion extends through the pixel definition layer into the planarization layer; Optionally, the pixel definition layer comprises an inorganic material; Optionally, the pixel definition layer comprises silicon nitride.

7. The display panel according to claim 1, characterized in that: It also includes a third electrode portion, the third electrode portion is arranged on a side of the insulating layer close to the substrate, at least a portion of the orthographic projection of the third electrode portion on the substrate overlaps with the orthographic projection of the auxiliary electrode on the substrate, and the auxiliary electrode is electrically connected to the third electrode portion; Optionally, one of the auxiliary electrodes is provided with one of the third electrode portions, the third electrode portion is provided below the auxiliary electrode, and the bottom of the auxiliary electrode is electrically connected to the corresponding third electrode portion; Optionally, one third electrode portion is provided corresponding to each of the plurality of auxiliary electrodes, the third electrode portion is provided below the auxiliary electrodes, and the bottoms of the plurality of auxiliary electrodes are electrically connected to the corresponding third electrode portion; Optionally, the third electrode portion is arranged in the same layer as the second electrode portion; Optionally, a gap is provided between adjacent third electrode portions; Optionally, adjacent third electrode portions are connected to each other; Optionally, the accommodation portion is an opening on the insulating layer; Optionally, an orthographic projection of the accommodation portion on the substrate is located within an orthographic projection of the third electrode portion on the substrate, and the accommodation portion exposes the third electrode portion.

8. The display panel according to claim 1, characterized in that: It also includes an isolation structure disposed on a side of the insulating layer away from the substrate, the isolation structure being used to isolate the light-emitting functional part; The isolation structure includes an isolation body, and the isolation body is arranged on one side of the substrate; Optionally, an orthographic projection of the isolating body on the substrate and an orthographic projection of the first opening on the substrate have no overlapping area; Optionally, the isolation structure further comprises a blocking portion, the blocking portion is arranged on a side of the isolation body away from the substrate, and an orthographic projection of the isolation body on the substrate is located within an orthographic projection of the blocking portion on the substrate; Optionally, the isolator is made of a non-conductive material; Optionally, the isolator comprises a conductive material, and the auxiliary electrode is electrically connected to the isolator; Optionally, at least a portion of the orthographic projection of the auxiliary electrode on the substrate is located between the orthographic projection of the spacer on the substrate and the orthographic projection of the light-emitting functional portion on the substrate; Optionally, the isolation structure is arranged on a side of the auxiliary electrode away from the substrate; Optionally, the isolation structure defines a plurality of second openings, and the light emitting functional portion and the first electrode portion are both disposed in the second openings; Optionally, the orthographic projection of the isolation structure on the substrate is in a grid shape; Optionally, the orthographic projection of the isolation structure on the substrate includes a plurality of independent annular structures.

9. A display panel, characterized in that: include: substrate; A light-emitting functional layer is disposed on one side of the substrate, and the light-emitting functional layer includes a plurality of light-emitting functional parts disposed at intervals; A first electrode layer is arranged on a side of the light-emitting functional layer away from the substrate; the first electrode layer comprises a plurality of first electrode portions arranged at intervals; An insulating layer, disposed on one side of the substrate, wherein the insulating layer is provided with a receiving portion; An isolation structure is arranged on a side of the insulating layer away from the substrate, the isolation structure encloses a second opening, the light-emitting functional part is located in the second opening, and the isolation structure includes an isolation body arranged close to the substrate; An auxiliary electrode is at least partially disposed in the accommodation portion, the auxiliary electrode is electrically connected to the first electrode portion, and at least a portion of the auxiliary electrode has its orthographic projection on the substrate located between the orthographic projection of the insulator on the substrate and the orthographic projection of the light-emitting functional portion on the substrate.

10. A display device, characterized in that: The invention comprises the display panel as claimed in any one of claims 1 to 9.

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