Display panel and display device

Abstract

The utility model provides a display panel and a display device. The four pixel units in the repeating unit are arranged in the 2 * 2 matrix, and every two adjacent pixel units are arranged in the axial symmetry mode, so that part of the sub-pixels of the same color in every two adjacent pixel units can be arranged adjacently, the distance between every two adjacent sub-pixels of the same color is reduced, and the number of the sub-pixels of the same color is reduced. Therefore, the pixel aperture ratio of the display panel is increased. Secondly, conductive isolation structures are arranged among the sub-pixels with different colors, so that the sub-pixels in the pixel units can be electrically connected with one another, the whole-surface connection of cathodes of the sub-pixels is facilitated, and the effect of isolating the sub-pixels with different colors can be achieved; meanwhile, compared with an FMM (Fine Metal Mask) process, the pixel aperture opening ratio of the display panel can be further improved by the display panel provided by the invention.

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] At present, the preparation of OLED (Organic Light-Emitting Diode) all uses fine mask for evaporation. The mask is expensive, and it is very costly to launch new products. At the same time, the area of ​​the fine mask opening bridge also limits the effective area of ​​evaporation in the pixel light-emitting area, which is not conducive to improving the aperture ratio. Utility Model Content

[0003] The main technical problem solved by the present application is to provide a display panel and a display device to solve the problem of how to improve the pixel aperture ratio of the display panel in the prior art.

[0004] In order to solve the above technical problems, the first technical solution provided by the present application is: to provide a display panel, which includes:

[0005] Pixel definition layer;

[0006] A plurality of repeating units, wherein the repeating units include four pixel units arranged in a 2×2 matrix; in each repeating unit, two adjacent pixel units are arranged axially symmetrically; each pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel of three different colors, and also includes a plurality of conductive isolation structures; the conductive isolation structure is arranged protruding from the pixel definition layer and is located between two adjacent sub-pixels of different colors; the conductive isolation structure is used to electrically connect the sub-pixels in the pixel unit to each other;

[0007] Each of the repeating units has a central area and an annular area surrounding the central area; in each of the repeating units, the first sub-pixel is located in the central area, and the second sub-pixel and the third sub-pixel are both located in the annular area.

[0008] Wherein, in the repeating unit, the cathodes of two adjacent sub-pixels of the same color are directly in contact with each other; the cathodes of two adjacent sub-pixels of different colors are electrically connected via the conductive isolation structure;

[0009] The spacing between two adjacent sub-pixels of the same color is smaller than the spacing between two adjacent sub-pixels of different colors.

[0010] Wherein, two adjacent pixel units are symmetrically arranged along the first direction, and symmetrically arranged along the second direction;

[0011] In each of the pixel units, two adjacent sub-pixels are staggered in the first direction or the second direction, and the adjacent sides of the two adjacent sub-pixels are parallel to each other; the first direction is perpendicular to the second direction.

[0012] Wherein, the pixel unit is rectangular;

[0013] In each of the pixel units, the side of the second sub-pixel away from the first sub-pixel is extended along the second direction, the side of the third sub-pixel away from the first sub-pixel is extended along the first direction, and the side between two adjacent second sub-pixels and the third sub-pixel is an oblique side.

[0014] The extending direction of the oblique side is intersected with the first direction and intersected with the second direction.

[0015] Wherein, in each of the pixel units,

[0016] The first sub-pixel is a rectangle, the second sub-pixel and the third sub-pixel are both right-angled trapezoids, the second sub-pixel is arranged to extend along the second direction near the side of the first sub-pixel, and the third sub-pixel is arranged to extend along the first direction near the side of the first sub-pixel;

[0017] or,

[0018] The first sub-pixel is in a sector shape, the sector shape is a quarter of a circle, and the second sub-pixel and the third sub-pixel are located on the same side of the arc-shaped side of the first sub-pixel;

[0019] or,

[0020] The first sub-pixel is a right triangle, and the second sub-pixel and the third sub-pixel are both quadrilaterals; the second sub-pixel and the third sub-pixel are located on the same side of the hypotenuse of the first sub-pixel.

[0021] The cathode of the sub-pixel is evaporated on the surface of the light-emitting layer of the sub-pixel through an evaporation source; the first direction is the long side direction of the evaporation source, and the second direction is the moving direction of the evaporation source.

[0022] The isolation structure between the first sub-pixel and the second sub-pixel is defined as a first isolation structure, the isolation structure between the first sub-pixel and the third sub-pixel is defined as a second isolation structure, and the isolation structure between the second sub-pixel and the third sub-pixel is defined as a third isolation structure;

[0023] The wall thickness of the first isolation structure is less than or equal to the wall thickness of the second isolation structure, and the wall thickness of the first isolation structure is less than or equal to the wall thickness of the third isolation structure.

[0024] Wherein, adjacent conductive isolation structures are electrically connected to each other.

[0025] The conductive isolation structure includes a conductive portion and an eaves structure disposed on an upper surface of the conductive portion, wherein the eaves structure shields the conductive portion and extends out of the conductive portion in a direction parallel to the pixel definition layer.

[0026] In order to solve the above technical problem, the second technical solution provided in the present application is: to provide a display device, which includes the above display panel.

[0027] Beneficial effects of the present application: Different from the prior art, the present application provides a display panel and a display device, wherein the display panel includes a pixel definition layer and a plurality of repeating units, wherein the repeating unit includes four pixel units arranged in a 2×2 matrix. In each repeating unit, two adjacent pixel units are arranged axially symmetrically. Each pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel of three different colors, and also includes a plurality of conductive isolation structures. The conductive isolation structure is arranged protruding from the pixel definition layer and is located between two adjacent sub-pixels of different colors. The conductive isolation structure is used to electrically connect the sub-pixels in the pixel unit to each other. Among them, each repeating unit has a central area and an annular area surrounding the central area. In each repeating unit, the first sub-pixel is located in the central area, and the second sub-pixel and the third sub-pixel are both located in the annular area. The present application arranges the four pixel units in the repeating unit in a 2×2 matrix, and arranges the adjacent two pixel units axially symmetrically, so that the sub-pixels of the same color in the adjacent two pixel units can be arranged adjacent to each other, thereby reducing the spacing between the two adjacent sub-pixels of the same color, thereby increasing the pixel aperture ratio of the display panel. Secondly, a conductive isolation structure is set between sub-pixels of different colors, which can not only electrically connect the sub-pixels within the pixel unit to each other, which is beneficial to the full-surface connection of the cathode of the sub-pixel, but also can isolate sub-pixels of different colors; at the same time, compared with the FMM (Fine Metal Mask) process, the present application can further improve the pixel aperture ratio of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments 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 any creative work.

[0029] Figure 1 It is a structural schematic diagram of an embodiment of an evaporation source and a limiting plate in the prior art;

[0030] Figure 2 is a schematic structural diagram of a first embodiment of a display panel provided by the present application;

[0031] Figure 3 It is a schematic structural diagram of the first embodiment of the repeating unit provided in the present application;

[0032] Figure 4 is a structural schematic diagram of a first embodiment of a pixel unit provided by the present application;

[0033] Figure 5 yes Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0034] Figure 6 yes Figure 2 Schematic diagram of the cross-sectional structure at BB in the middle;

[0035] Figure 7 is a schematic structural diagram of a second embodiment of a display panel provided by the present application;

[0036] Figure 8 is a schematic structural diagram of a second embodiment of a repeating unit provided in the present application;

[0037] Fig. 9 is a structural schematic diagram of a second embodiment of a pixel unit provided by the present application;

[0038] Fig.10 yes Figure 7 Schematic diagram of the cross-section structure at CC in the middle;

[0039] Fig.11 is a schematic structural diagram of a third embodiment of a display panel provided by the present application;

[0040] Fig.12 is a schematic structural diagram of the third embodiment of the repeating unit provided in the present application;

[0041] Fig.13 is a structural schematic diagram of a third embodiment of a pixel unit provided by the present application;

[0042] Fig.14 is a schematic structural diagram of a fourth embodiment of a display panel provided by the present application;

[0043] Fig.15 is a schematic structural diagram of a fourth embodiment of a repeating unit provided in the present application;

[0044] Fig.16is a structural schematic diagram of a fourth embodiment of a pixel unit provided by the present application;

[0045] Fig.17 is a schematic structural diagram of a fifth embodiment of a display panel provided by the present application;

[0046] Fig.18 is a schematic structural diagram of the fifth embodiment of the repeating unit provided by the present application;

[0047] Fig.19 is a structural schematic diagram of a fifth embodiment of a pixel unit provided by the present application;

[0048] Fig. 20 is a schematic structural diagram of a sixth embodiment of a display panel provided by the present application;

[0049] Fig.21 is a schematic structural diagram of a sixth embodiment of a repeating unit provided in the present application;

[0050] Fig. 22 Schematic diagram of the structure of the sixth embodiment of the pixel unit provided in the present application.

[0051] Description of Figure Numbers:

[0052] 10. Pixel definition layer; 11. Pixel opening; 20. Repeating unit; 20A. Central area; 20B. Ring area; 21. Pixel unit; 210. Sub-pixel; 211. Anode; 212. Light-emitting layer; 213. Cathode; 210A. First sub-pixel; 210B. Second sub-pixel; 210C. Third sub-pixel; 22. Conductive isolation structure; 221. Conductive part; 222. Eaves structure; 22A. First isolation structure; 22B. Second isolation structure; 22C. Third isolation structure; X. First direction; Y. Second direction; 100. Evaporation source; 200. Limiting plate. DETAILED DESCRIPTION

[0053] The scheme of the embodiment of the present application is described in detail below in conjunction with the drawings of the specification.

[0054] In the following description, for the purpose of explanation rather than limitation, specific details such as specific system structures, interfaces, and technologies are provided to facilitate a thorough understanding of the present application.

[0055] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0056] The terms "first", "second", "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the embodiments of this application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0057] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0058] See also Figure 1 , Figure 1 It is a structural schematic diagram of an embodiment of an evaporation source and a limiting plate in the prior art.

[0059] In the actual evaporation process, since the evaporation source 100 forms an evaporation cloud in the long side direction of the evaporation source 100, the evaporation angle of the evaporation material cannot be controlled in the long side direction of the evaporation source 100, but in the moving direction of the evaporation source 100 (i.e., the scanning direction of the evaporation source 100), the limiting plates 200 on both sides can be used to achieve the purpose of controlling the exit angle of the evaporation material. Therefore, the side wall of the conductive isolation structure extending along the long side direction of the evaporation source 100 can be electrically connected to the cathode of the sub-pixel, while the side wall of the conductive isolation structure extending along the moving direction of the evaporation source 100 cannot be electrically connected to the cathode of the sub-pixel.

[0060] See also Figures 2 to 6 , Figure 2 is a schematic structural diagram of a first embodiment of a display panel provided in the present application, Figure 3 is a schematic structural diagram of the first embodiment of the repeating unit provided in this application, Figure 4is a structural schematic diagram of a first embodiment of a pixel unit provided in the present application, Figure 5 yes Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle. Figure 6 yes Figure 2 Schematic diagram of the cross-sectional structure at BB in the middle.

[0061] Based on the above principles, the present application provides a display panel. The display panel includes a pixel definition layer 10, a plurality of repeating units 20 and a plurality of conductive isolation structures 22. The repeating unit 20 includes four pixel units 21 arranged in a 2×2 matrix. In each repeating unit 20, two adjacent pixel units 21 are arranged axially symmetrically. Each pixel unit 21 includes a first sub-pixel 210A, a second sub-pixel 210B and a third sub-pixel 210C of three different colors, and also includes a plurality of conductive isolation structures 22. The conductive isolation structure 22 is arranged protruding from the pixel definition layer 10 and is located between two adjacent sub-pixels 210 of different colors. The conductive isolation structure 22 is used to electrically connect the sub-pixels 210 in the pixel unit 21 to each other. Among them, each repeating unit 20 has a central area 20A and an annular area 20B surrounding the central area 20A. In each repeating unit 20, the first sub-pixel 210A is located in the central area 20A, and the second sub-pixel 210B and the third sub-pixel 210C are both located in the annular area 20B.

[0062] The present application arranges the four pixel units 21 in the repeating unit 20 in a 2×2 matrix, and sets the adjacent two pixel units 21 in an axisymmetric manner, so that the sub-pixels 210 of the same color in the adjacent two pixel units 21 can be set adjacent to each other, thereby reducing the spacing between the two adjacent sub-pixels 210 of the same color, thereby increasing the pixel aperture ratio of the display panel. Secondly, a conductive isolation structure 22 is set between the sub-pixels 210 of different colors, which can not only electrically connect the sub-pixels 210 in the pixel unit 21 to each other, which is beneficial to the full surface connection of the cathode 213 of the sub-pixel 210, but also can play a role in isolating the sub-pixels 210 of different colors; at the same time, compared with the FMM (Fine Metal Mask) process, the present application can further improve the pixel aperture ratio of the display panel.

[0063] The pixel definition layer 10 is used to define the position of the sub-pixel 210. The pixel definition layer 10 has a plurality of pixel openings 11 arranged at intervals, and the sub-pixels 210 are arranged in the pixel openings 11. One pixel opening 11 corresponds to one sub-pixel 210. The thickness and material of the pixel definition layer 10 are not limited here, and are selected according to actual needs.

[0064] The sub-pixel 210 includes an anode 211, a light-emitting layer 212, and a cathode 213 which are stacked in sequence toward the conductive isolation structure 22. The materials of the anode 211, the light-emitting layer 212, and the cathode 213 are not limited here and can be selected according to actual needs.

[0065] The sub-pixel 210 includes an OLED (Organic Light-Emitting Diode).

[0066] Furthermore, the cathode 213 of the sub-pixel 210 is evaporated on the surface of the light-emitting layer 212 of the sub-pixel 210 by an evaporation source.

[0067] In this embodiment, the first direction X is the long side direction of the evaporation source, and the second direction Y is the moving direction of the evaporation source.

[0068] It should be noted that the first sub-pixel 210A, the second sub-pixel 210B and the third sub-pixel 210C in the present application are all sub-pixels 210 , but represent sub-pixels 210 of different colors.

[0069] In this embodiment, the first sub-pixel 210A is a green sub-pixel 210 , the second sub-pixel 210B is a blue sub-pixel 210 , and the third sub-pixel 210C is a red sub-pixel 210 .

[0070] It should be understood that in other embodiments, the first sub-pixel 210A, the second sub-pixel 210B and the third sub-pixel 210C may be sub-pixels 210 of other colors. There are no excessive restrictions on the colors of the sub-pixels 210 and they are selected according to actual needs.

[0071] A plurality of repeating units 20 are arranged in a matrix. The repeating units 20 are repeatedly arranged in a first direction X and a second direction Y respectively.

[0072] The repeating unit 20 includes four pixel units 21 arranged in a 2×2 matrix. It can be understood that the four pixel units 21 in the repeating unit 20 are arranged in two rows and two columns.

[0073] In this embodiment, in the repeating unit 20 , two adjacent pixel units 21 are symmetrically arranged along the first direction X and symmetrically arranged along the second direction Y. That is, the repeating unit 20 is symmetrical along the first direction X and symmetrical along the second direction Y.

[0074] Furthermore, in the repeating unit 20, the cathodes 213 of two adjacent sub-pixels 210 of the same color are directly in contact with each other. The cathodes 213 of two adjacent sub-pixels 210 of different colors are electrically connected via a conductive isolation structure 22. The spacing between two adjacent sub-pixels 210 of the same color is smaller than the spacing between two adjacent sub-pixels 210 of different colors.

[0075] That is to say, within the repeating unit 20, there is no need to set a conductive isolation structure 22 between two adjacent sub-pixels 210 of the same color. The light-emitting layers 212 of the two adjacent sub-pixels 210 of the same color can be directly contacted with each other, and the cathodes 213 of the two adjacent sub-pixels 210 of the same color can be directly contacted with each other, which is beneficial to reducing the distance between the two adjacent sub-pixels 210 of the same color, thereby improving the pixel aperture ratio of the display panel.

[0076] In order to avoid pixel crosstalk between sub-pixels 210 of different colors, a conductive isolation structure 22 must be provided between two adjacent sub-pixels 210 of different colors for isolation. In addition, part of the conductive isolation structure 22 can also be provided in contact with and electrically connected to adjacent sub-pixels 210 .

[0077] It should be noted that, in the present application, the side of the sub-pixel 210 close to the conductive isolation structure 22 is arranged parallel to the corresponding conductive isolation structure 22 .

[0078] It should be understood that based on the evaporation principle of the evaporation source, the conductive isolation structure 22 extending along the moving direction of the evaporation source (i.e., the second direction Y) cannot be arranged in contact with the cathode 213 of the sub-pixel 210, thereby causing the conductive isolation structure 22 extending along the moving direction of the evaporation source to be unable to be electrically connected to the cathode 213 of the sub-pixel 210. In other words, not all conductive isolation structures 22 can be arranged in direct contact with adjacent sub-pixels 210 and achieve electrical connection.

[0079] In the present application, the spacing between two adjacent sub-pixels 210 of the same color is set to be smaller than the spacing between two adjacent sub-pixels 210 of different colors, thereby improving the pixel aperture ratio of the display panel while avoiding pixel crosstalk.

[0080] In addition, the first sub-pixel 210A is disposed in the central area 20A of the repeating unit 20, so that the four first sub-pixels 210A in the repeating unit 20 can be disposed adjacent to each other, thereby allowing more sub-pixels 210 of the same color to be disposed adjacent to each other, thereby facilitating the improvement of the pixel aperture ratio of the display panel.

[0081] Furthermore, in each pixel unit 21, two adjacent sub-pixels 210 are arranged alternately in the first direction X or the second direction Y, and the adjacent sides of the two adjacent sub-pixels 210 are arranged parallel to each other. The first direction X and the second direction Y are arranged perpendicularly.

[0082] Specifically, in each pixel unit 21, the first sub-pixel 210A and the second sub-pixel 210B are arranged alternately in the first direction X, the first sub-pixel 210A and the third sub-pixel 210C are arranged alternately in the second direction Y, and the second sub-pixel 210B and the third sub-pixel 210C are arranged alternately in the first direction X and alternately in the second direction Y. The sides of two adjacent sub-pixels 210 that are close to each other are arranged in parallel.

[0083] Furthermore, the pixel units 21 are rectangular in shape, so as to better arrange the pixel units 21 and reduce the spacing between adjacent pixel units 21 , thereby maximally improving the pixel aperture ratio of the display panel.

[0084] In each pixel unit 21, the side of the second sub-pixel 210B away from the first sub-pixel 210A is extended along the second direction Y, and the side of the third sub-pixel 210C away from the first sub-pixel 210A is extended along the first direction X, and the side close to the two adjacent second sub-pixels 210B and third sub-pixels 210C is an oblique side. The extension direction of the oblique side intersects with the first direction X and the second direction Y.

[0085] It should be noted that the extension direction of the oblique side does not represent a fixed direction. It only needs to ensure that the extension direction of the oblique side is neither parallel to the first direction X nor parallel to the second direction Y, so as to ensure that in the same pixel unit 21, the second sub-pixel 210B and the third sub-pixel 210C can be staggered in the first direction X and staggered in the second direction Y, thereby improving the color edge phenomenon of the display panel.

[0086] The conductive isolation structure 22 is located between two adjacent sub-pixels 210 of different colors. It can be understood that the conductive isolation structure 22 is set on part of the side of the sub-pixel 210, rather than on all the sides of a single sub-pixel 210, so as to reduce the number of conductive isolation structures 22 in the display panel and further improve the pixel aperture ratio.

[0087] In this embodiment, the conductive isolation structure 22 includes a conductive portion 221 and an eaves structure 222 disposed on the upper surface of the conductive portion 221, the eaves structure 222 shields the conductive portion 221, and extends the conductive portion 221 in a direction parallel to the pixel definition layer 10. The conductive isolation structure 22 is electrically connected to the cathode 213 of the sub-pixel 210 through the conductive portion 221.

[0088] The orthographic projection of the eaves structure 222 on the pixel definition layer 10 covers the orthographic projection of the conductive portion 221 on the pixel definition layer 10, and the orthographic projection area of ​​the eaves structure 222 on the pixel definition layer 10 is larger than the orthographic projection area of ​​the conductive portion 221 on the pixel definition layer 10. During the evaporation of the sub-pixel 210, the evaporation angle of the evaporation material can be adjusted by extending the portion of the conductive portion 221 from the eaves structure 222, so that the cathode 213 of the sub-pixel 210 can cover the light-emitting layer 212 and achieve good electrical connection with the conductive portion 221.

[0089] There is no restriction on the materials of the conductive part 221 and the eaves structure 222, and they can be selected according to actual needs.

[0090] It should be understood that in other embodiments, the conductive isolation structure 22 may also be other structures.

[0091] Adjacent conductive isolation structures 22 are electrically connected to each other, so as to electrically connect the sub-pixels 210 to each other, thereby achieving full-surface connection of the cathodes 213 of the sub-pixels 210 , which is beneficial to the uniformity of the cathodes 213 .

[0092] In this embodiment, in each pixel unit 21, the first sub-pixel 210A is a rectangle, the second sub-pixel 210B and the third sub-pixel 210C are both right-angled trapezoids, the second sub-pixel 210B is arranged to extend along the second direction Y close to the side of the first sub-pixel 210A, and the third sub-pixel 210C is arranged to extend along the first direction X close to the side of the first sub-pixel 210A.

[0093] The isolation structure between the first sub-pixel 210A and the second sub-pixel 210B is defined as the first isolation structure 22A, the isolation structure between the first sub-pixel 210A and the third sub-pixel 210C is defined as the second isolation structure 22B, and the isolation structure between the second sub-pixel 210B and the third sub-pixel 210C is defined as the third isolation structure 22C.

[0094] In this embodiment, the extension direction of the first isolation structure 22A is parallel to the second direction Y, so that the first isolation structure 22A cannot be directly electrically connected to the adjacent sub-pixel 210. The extension direction of the second isolation structure 22B is parallel to the first direction X, so that the second isolation structure 22B can be directly electrically connected to the adjacent sub-pixel 210. The extension direction of the third isolation structure 22C is arranged to intersect with the first direction X and the second direction Y, so that the third isolation structure 22C can be directly electrically connected to the adjacent sub-pixel 210.

[0095] Furthermore, the wall thickness of the first isolation structure 22A is less than or equal to the wall thickness of the second isolation structure 22B, and the wall thickness of the first isolation structure 22A is less than or equal to the wall thickness of the third isolation structure 22C.

[0096] In this embodiment, the wall thickness of the first isolation structure 22A is equal to the wall thickness of the second isolation structure 22B, and the wall thickness of the first isolation structure 22A is equal to the wall thickness of the third isolation structure 22C.

[0097] This embodiment helps to improve the color edge phenomenon of the display panel by staggering two adjacent sub-pixels 210 in the first direction X or the second direction Y. Secondly, a conductive isolation structure 22 is arranged between two adjacent sub-pixels 210 of different colors, which not only serves to isolate the sub-pixels 210, but also enables the cathodes 213 of the sub-pixels 210 to be directly or indirectly electrically connected through the conductive isolation structure 22. At the same time, compared with the existing FMM process, this embodiment can improve the pixel aperture ratio of the display panel; in addition, the cathodes 213 of two adjacent sub-pixels 210 of the same color are directly contacted, which can reduce the distance between the two adjacent sub-pixels 210 of the same color, and further improve the pixel aperture ratio of the display panel.

[0098] Please refer to Figures 2 to 4 ,as well as Figures 7 to 10 , Figure 7 is a schematic structural diagram of a second embodiment of a display panel provided by the present application, Figure 8 is a schematic structural diagram of the second embodiment of the repeating unit provided in this application, Fig. 9 is a schematic structural diagram of a second embodiment of a pixel unit provided in the present application, Fig.10 yes Figure 7 Schematic diagram of the cross-sectional structure at CC in the middle.

[0099] The second embodiment of the display panel provided in the present application is basically similar in structure to the first embodiment of the display panel provided in the present application, except that the wall thickness of the first isolation structure 22A is smaller than the wall thickness of the second isolation structure 22B, and the wall thickness of the first isolation structure 22A is smaller than the wall thickness of the third isolation structure 22C.

[0100] In this embodiment, the wall thickness of the first isolation structure 22A is smaller than the wall thickness of the second isolation structure 22B, and the wall thickness of the first isolation structure 22A is smaller than the wall thickness of the third isolation structure 22C. The first isolation structure 22A is extended along the second direction Y, so that the first isolation structure 22A will not be in contact with the cathode 213 of the adjacent sub-pixel 210, that is, the first isolation structure 22A will not be directly electrically connected to the cathode 213 of the first sub-pixel 210A, and the first isolation structure 22A will not be directly electrically connected to the cathode 213 of the second sub-pixel 210B.

[0101] The wall thickness of the second isolation structure 22B may be equal or unequal, which is not limited here and is selected according to actual needs.

[0102] This embodiment can also improve the color edge phenomenon and increase the pixel aperture ratio of the display panel. At the same time, this embodiment can further increase the pixel aperture ratio of the display panel by keeping the wall thickness of the second isolation structure 22B and the wall thickness of the third isolation structure 22C unchanged to keep the spacing between the first sub-pixel 210A and the third sub-pixel 210C unchanged, and ensuring that the second isolation structure 22B is well electrically connected to the adjacent sub-pixel 210, and the third isolation structure 22C is well electrically connected to the adjacent sub-pixel 210, and reducing the wall thickness of the first isolation structure 22A to reduce the spacing between the first sub-pixel 210A and the second sub-pixel 210B.

[0103] Please refer to Figures 2 to 4 ,as well as Figures 11 to 13 , Fig.11 is a schematic structural diagram of a third embodiment of a display panel provided in the present application, Fig.12 is a schematic structural diagram of the third embodiment of the repeating unit provided in this application, Fig.13 It is a structural schematic diagram of the third embodiment of the pixel unit provided in the present application.

[0104] The third embodiment of the display panel provided in the present application is basically similar in structure to the first embodiment of the display panel provided in the present application, except that: in each pixel unit 21, the first sub-pixel 210A is fan-shaped, the fan-shape is a quarter circle, and the second sub-pixel 210B and the third sub-pixel 210C are located on the same side of the curved side of the first sub-pixel 210A.

[0105] In this embodiment, in each pixel unit 21 , the first sub-pixel 210A is fan-shaped, which is a quarter of a circle, and the second sub-pixel 210B and the third sub-pixel 210C are located on the same side of the arc-shaped side of the first sub-pixel 210A.

[0106] The wall thickness of the first isolation structure 22A is equal to the wall thickness of the second isolation structure 22B, and the wall thickness of the first isolation structure 22A is equal to the wall thickness of the third isolation structure 22C.

[0107] Compared with the first embodiment of the display panel provided in the present application, the shape of each sub-pixel 210 in the pixel unit 21 in this embodiment is different, but the color fringing phenomenon can also be improved and the pixel aperture ratio of the display panel can be increased.

[0108] Please refer to Figures 2 to 4 ,as well as Figures 14 to 16 , Fig.14 is a schematic structural diagram of a fourth embodiment of a display panel provided in the present application, Fig.15 is a schematic structural diagram of the fourth embodiment of the repeating unit provided in the present application, Fig.16Schematic diagram of the structure of the fourth embodiment of the pixel unit provided in the present application.

[0109] The fourth embodiment of the display panel provided in the present application is basically similar in structure to the third embodiment of the display panel provided in the present application, except that the wall thickness of the first isolation structure 22A is smaller than the wall thickness of the second isolation structure 22B, and the wall thickness of the first isolation structure 22A is smaller than the wall thickness of the third isolation structure 22C.

[0110] In this embodiment, the wall thickness of the first isolation structure 22A is smaller than the wall thickness of the second isolation structure 22B, and the wall thickness of the first isolation structure 22A is smaller than the wall thickness of the third isolation structure 22C.

[0111] The first isolation structure 22A and the second isolation structure 22B are both arc-shaped structures. Compared with the second isolation structure 22B, the first isolation structure 22A is more inclined to be extended along the second direction Y. In other words, the direct electrical connection effect between the second isolation structure 22B and the adjacent sub-pixel 210 is better than the direct electrical connection effect between the first isolation structure 22A and the adjacent sub-pixel 210. Reducing the wall thickness of the first isolation structure 22A also does not affect the electrical connection between the sub-pixels 210 in the pixel unit 21, and is also conducive to improving the pixel aperture ratio of the display panel.

[0112] That is, this embodiment can also improve the color fringing phenomenon and increase the pixel aperture ratio of the display panel.

[0113] Please refer to Figures 2 to 4 ,as well as Figures 17 to 19 , Fig.17 is a schematic structural diagram of a fifth embodiment of a display panel provided in the present application, Fig.18 is a schematic structural diagram of the fifth embodiment of the repeating unit provided in the present application, Fig.19 It is a structural schematic diagram of the fifth embodiment of the pixel unit provided in the present application.

[0114] The fifth embodiment of the display panel provided in the present application is similar in structure to the first embodiment of the display panel provided in the present application, except that the first sub-pixel 210A is a right triangle, the second sub-pixel 210B and the third sub-pixel 210C are both quadrilaterals, and the second sub-pixel 210B and the third sub-pixel 210C are located on the same side of the hypotenuse of the first sub-pixel 210A.

[0115] The wall thickness of the first isolation structure 22A is equal to the wall thickness of the second isolation structure 22B, and the wall thickness of the first isolation structure 22A is equal to the wall thickness of the third isolation structure 22C.

[0116] Compared with the first embodiment of the display panel provided in the present application, the shape of each sub-pixel 210 in the pixel unit 21 in this embodiment is different, but the color fringing phenomenon can also be improved and the pixel aperture ratio of the display panel can be increased.

[0117] Please refer to Figures 2 to 4 ,as well as Figure 20 to Figure 22 , Fig. 20 is a schematic structural diagram of a sixth embodiment of a display panel provided in the present application, Fig.21 is a schematic structural diagram of the sixth embodiment of the repeating unit provided in the present application, Fig. 22 Schematic diagram of the structure of the sixth embodiment of the pixel unit provided in the present application.

[0118] The sixth embodiment of the display panel provided in the present application is basically similar in structure to the fifth embodiment of the display panel provided in the present application, except that the wall thickness of the first isolation structure 22A is smaller than the wall thickness of the second isolation structure 22B, and the wall thickness of the first isolation structure 22A is smaller than the wall thickness of the third isolation structure 22C.

[0119] In this embodiment, the wall thickness of the first isolation structure 22A is smaller than the wall thickness of the second isolation structure 22B, and the wall thickness of the first isolation structure 22A is smaller than the wall thickness of the third isolation structure 22C.

[0120] The extension direction of the first isolation structure 22A intersects with the first direction X and the second direction Y, so that the first isolation structure 22A can be directly electrically connected to the adjacent sub-pixel 210 .

[0121] The extension direction of the second isolation structure 22B is the same as the extension direction of the first isolation structure 22A. The second isolation structure 22B can also be directly electrically connected to the adjacent sub-pixel 210 .

[0122] In this embodiment, the wall thickness of the first isolation structure 22A is reduced, and the electrical connection between the cathodes 213 of the sub-pixels 210 in the pixel unit 21 is also not affected.

[0123] Compared with the first embodiment of the display panel provided in the present application, the shape of each sub-pixel 210 in the pixel unit 21 in this embodiment is different, but the color fringing phenomenon can also be improved and the pixel aperture ratio of the display panel can be increased.

[0124] The present application provides a display device, which includes the above-mentioned display panel.

[0125] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0126] The above are only implementation methods of the present application, and are not intended to limit the patent protection scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display panel, characterized in that: include: Pixel definition layer; A plurality of repeating units, wherein the repeating units include four pixel units arranged in a 2×2 matrix; in each repeating unit, two adjacent pixel units are arranged axially symmetrically; each pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel of three different colors, and also includes a plurality of conductive isolation structures; the conductive isolation structure is arranged protruding from the pixel definition layer and is located between two adjacent sub-pixels of different colors; the conductive isolation structure is used to electrically connect the sub-pixels in the pixel unit to each other; Each of the repeating units has a central area and an annular area surrounding the central area; in each of the repeating units, the first sub-pixel is located in the central area, and the second sub-pixel and the third sub-pixel are both located in the annular area.

2. The display panel according to claim 1, characterized in that: In the repeating unit, cathodes of two adjacent sub-pixels of the same color are directly in contact with each other; cathodes of two adjacent sub-pixels of different colors are electrically connected via the conductive isolation structure; The spacing between two adjacent sub-pixels of the same color is smaller than the spacing between two adjacent sub-pixels of different colors.

3. The display panel according to claim 1, characterized in that: Two adjacent pixel units are symmetrically arranged along the first direction and symmetrically arranged along the second direction; In each of the pixel units, two adjacent sub-pixels are staggered in the first direction or the second direction, and the adjacent sides of the two adjacent sub-pixels are parallel to each other; the first direction is perpendicular to the second direction.

4. The display panel according to claim 3, characterized in that: The pixel unit is rectangular; In each of the pixel units, the side of the second sub-pixel away from the first sub-pixel is extended along the second direction, the side of the third sub-pixel away from the first sub-pixel is extended along the first direction, and the side between two adjacent second sub-pixels and the third sub-pixel is an oblique side. The extending direction of the oblique side is intersected with the first direction and intersected with the second direction.

5. The display panel according to claim 3, characterized in that: In each of the pixel units, The first sub-pixel is a rectangle, the second sub-pixel and the third sub-pixel are both right-angled trapezoids, the second sub-pixel is arranged to extend along the second direction near the side of the first sub-pixel, and the third sub-pixel is arranged to extend along the first direction near the side of the first sub-pixel; or, The first sub-pixel is in a sector shape, the sector shape is a quarter of a circle, and the second sub-pixel and the third sub-pixel are located on the same side of the arc-shaped side of the first sub-pixel; or, The first sub-pixel is a right triangle, and the second sub-pixel and the third sub-pixel are both quadrilaterals; the second sub-pixel and the third sub-pixel are located on the same side of the hypotenuse of the first sub-pixel.

6. The display panel according to claim 5, characterized in that: The cathode of the sub-pixel is evaporated on the surface of the light-emitting layer of the sub-pixel through an evaporation source; the first direction is the long side direction of the evaporation source, and the second direction is the moving direction of the evaporation source.

7. The display panel according to claim 6, characterized in that: defining an isolation structure between the first sub-pixel and the second sub-pixel as a first isolation structure, defining an isolation structure between the first sub-pixel and the third sub-pixel as a second isolation structure, and defining an isolation structure between the second sub-pixel and the third sub-pixel as a third isolation structure; The wall thickness of the first isolation structure is less than or equal to the wall thickness of the second isolation structure, and the wall thickness of the first isolation structure is less than or equal to the wall thickness of the third isolation structure.

8. The display panel according to claim 1, characterized in that: Adjacent conductive isolation structures are electrically connected to each other.

9. The display panel according to claim 1, characterized in that: The conductive isolation structure includes a conductive portion and an eaves structure disposed on an upper surface of the conductive portion, wherein the eaves structure shields the conductive portion and extends out of the conductive portion in a direction parallel to the pixel definition layer.

10. A display device, characterized in that: A display panel comprising any one of claims 1 to 9.

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