Display panel and display device

Abstract

The present application provides a display panel and a display device. The present application keeps the thickness of the first side wall of the conductive enclosure structure unchanged while ensuring that the area and shape of the area enclosed by the outer side wall of the conductive enclosure structure remain unchanged. By reducing the thickness of the second side wall of the conductive enclosure structure, the area of ​​the pixel accommodation area enclosed by the conductive enclosure structure can be increased, thereby increasing the effective light-emitting area of ​​the sub-pixels accommodated in the pixel accommodation area, thereby facilitating the improvement of the pixel aperture ratio of the display panel; secondly, the present application keeps the thickness of the first side wall of the conductive enclosure structure unchanged, and makes the cathode of the sub-pixel enclosed by the conductive enclosure structure contact with the first side wall to achieve electrical connection between the sub-pixel and the conductive enclosure structure, thereby maintaining good electrical connection between the sub-pixel and the conductive enclosure structure while improving the pixel aperture ratio, which is conducive to achieving a mesh electrical connection of the cathode of the sub-pixel, thereby improving the display uniformity of the display panel.

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) is all done by evaporation using fine masks. The masks are 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. Summary of the invention

[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] a pixel definition layer having a plurality of pixel openings arranged at intervals;

[0006] A plurality of sub-pixels are arranged in the pixel opening in a one-to-one correspondence; the sub-pixels include an anode, a light-emitting layer and a cathode which are stacked in sequence; the cathode is evaporated on the surface of the light-emitting layer by an evaporation source;

[0007] A conductive enclosure structure is provided, protruding from the pixel definition layer, and surrounds the pixel opening to form a pixel accommodating area; the conductive enclosure structure comprises a plurality of side walls connected to each other; the plurality of side walls are respectively defined as a first side wall and a second side wall; wherein the thickness of the first side wall is greater than the thickness of the second side wall, and the first side wall is extended along a first direction;

[0008] The cathode of the sub-pixel enclosed by the conductive enclosure structure is arranged in contact with the first side wall to achieve electrical connection between the sub-pixel and the conductive enclosure structure; and the first direction is arranged to intersect with the scanning direction of the evaporation source.

[0009] Among them, the pixel accommodating area is arranged in a one-to-one correspondence with the pixel opening; the first direction is perpendicular to the scanning direction of the evaporation source and parallel to the long side direction of the evaporation source; a plurality of sub-pixels of different colors and the conductive enclosure structure surrounding the sub-pixels are combined into a pixel unit; the pixel unit is rectangular or parallelogram; two adjacent conductive enclosure structures in the pixel unit share the side wall.

[0010] Among them, the spacing between the side wall of the conductive enclosure structure and the sub-pixel is equal; in the pixel unit, the sub-pixel is at least one of a rectangle, an L-shape, a parallelogram, a triangle or a trapezoid.

[0011] Wherein, the sub-pixel is a rectangle or a parallelogram, and the conductive enclosure structure includes two first side walls arranged opposite to each other along the second direction; the multiple sub-pixels of different colors in the pixel unit are arranged flush along the first direction in sequence; the pixel unit is repeatedly arranged along the first direction and the second direction respectively, and a side wall of one conductive enclosure structure is completely overlapped with a side wall of another adjacent conductive enclosure structure in a direction perpendicular to the pixel definition layer; wherein the second direction is intersected with the first direction.

[0012] Wherein, the sub-pixel is a rectangle or a parallelogram, and the conductive enclosure structure includes a first side wall; the multiple sub-pixels of different colors in the pixel unit are arranged in parallel along the first direction in sequence; the pixel units are defined as first pixel units and second pixel units respectively; the first pixel units are repeatedly arranged along the first direction to form a first pixel unit row, and the second pixel units are repeatedly arranged along the first direction to form a second pixel unit row; the first pixel unit row and the second pixel unit row are alternately and flushly arranged in sequence along the second direction; the pixel arrangement of the sub-pixels in the first pixel unit is the same as the pixel arrangement of the sub-pixels in the second pixel unit; in the first direction, two adjacent conductive enclosure structures share the second side wall; in the second direction, the conductive enclosure structure in the first pixel unit and the conductive enclosure structure in the adjacent second pixel unit share the first side wall or the second side wall; wherein, the second direction is arranged to intersect with the first direction.

[0013] Among them, the multiple sub-pixels of different colors in the pixel unit are respectively a first pixel, a second pixel and a third pixel; the first pixel is extended along the first direction, and the second pixel and the third pixel are arranged flush along the first direction; a side of the second pixel away from the third pixel is located in the same straight line as a side of the first pixel; a side of the third pixel away from the second pixel is located in the same straight line as the other side of the first pixel; the pixel units are repeatedly arranged and flush along the first direction and the second direction, respectively; wherein the second direction is arranged to intersect with the first direction.

[0014] The conductive enclosure structure includes two first side walls arranged opposite to each other along the second direction; in the pixel unit, two adjacent conductive enclosure structures in the second direction share the first side wall of the conductive enclosure structure enclosing the first pixel.

[0015] Wherein, the conductive enclosure structure includes a first side wall; in the pixel unit, two adjacent conductive enclosure structures in the second direction share the first side wall of the conductive enclosure structure enclosing the first pixel, or two adjacent conductive enclosure structures in the second direction share the second side wall of the conductive enclosure structure enclosing the first pixel.

[0016] Among them, the multiple sub-pixels of different colors in the pixel unit are respectively a first pixel, a second pixel and a third pixel; the second pixel and the third pixel are both rectangular and arranged flush along the second direction; the first pixel is L-shaped and half-surrounds the second pixel and the third pixel; in the second direction, the second pixel is located between the first pixel and the third pixel.

[0017] 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.

[0018] 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, a plurality of sub-pixels and a conductive enclosure structure. The pixel definition layer has a plurality of pixel openings arranged at intervals. A plurality of sub-pixels are arranged in a one-to-one correspondence in the pixel openings. The sub-pixels include an anode, a light-emitting layer and a cathode arranged in sequence; the cathode is evaporated on the surface of the light-emitting layer by an evaporation source. The conductive enclosure structure is arranged protruding from the pixel definition layer and surrounds the pixel opening to form a pixel accommodation area. The conductive enclosure structure includes a plurality of interconnected side walls. The plurality of side walls are respectively defined as a first side wall and a second side wall. The thickness of the first side wall is greater than the thickness of the second side wall, and the first side wall is extended along a first direction. The cathode of the sub-pixel enclosed by the conductive enclosure structure is arranged by contacting the first side wall to realize electrical connection between the sub-pixel and the conductive enclosure structure. The first direction is arranged to intersect with the scanning direction of the evaporation source. Compared with the prior art, the present application maintains the thickness of the first side wall of the conductive enclosure structure while ensuring that the area and shape of the area enclosed by the outer side wall of the conductive enclosure structure remain unchanged. By reducing the thickness of the second side wall of the conductive enclosure structure, the area of ​​the area enclosed by the inner side wall of the conductive enclosure structure can be increased, that is, the area of ​​the pixel accommodating area enclosed by the conductive enclosure structure is increased, thereby increasing the effective light-emitting area of ​​the sub-pixels accommodated in the pixel accommodating area, which is beneficial to improving the pixel aperture ratio of the display panel; secondly, the present application maintains the thickness of the first side wall of the conductive enclosure structure unchanged, and makes the cathode of the sub-pixel enclosed by the conductive enclosure structure contact with the first side wall to achieve electrical connection between the sub-pixel and the conductive enclosure structure, thereby maintaining good electrical connection between the sub-pixel and the conductive enclosure structure while improving the pixel aperture ratio, which is beneficial to achieve a mesh electrical connection of the cathode of the sub-pixel, so as to improve the display uniformity of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] Figure 1 It is a structural schematic diagram of an embodiment of an evaporation source and a limiting plate in the prior art;

[0021] Figure 2 is a structural schematic diagram of an embodiment of a display panel in the prior art;

[0022] Figure 3 is a schematic structural diagram of a first embodiment of a display panel provided by the present application;

[0023] Figure 4 It is a structural schematic diagram of the first embodiment of the conductive enclosure structure provided by the present application;

[0024] Figure 5 is a structural schematic diagram of a first embodiment of a pixel unit provided by the present application;

[0025] Figure 6 yes Figure 5 Schematic diagram of the cross-sectional structure at GG in the middle;

[0026] Figure 7 yes Figure 5 Schematic diagram of the cross-sectional structure at HH in the middle;

[0027] Figure 8 is a schematic structural diagram of a second embodiment of a display panel provided by the present application;

[0028] Fig. 9 It is a structural schematic diagram of the second embodiment of the conductive enclosure structure provided by the present application;

[0029] Fig.10 is a structural schematic diagram of a second embodiment of a pixel unit provided by the present application;

[0030] Fig.11 is a schematic structural diagram of a third embodiment of a display panel provided by the present application;

[0031] Fig.12 It is a structural schematic diagram of the third embodiment of the conductive enclosure structure provided by the present application;

[0032] Fig.13 is a schematic structural diagram of an embodiment of a first pixel unit and a second pixel unit provided in the present application;

[0033] Fig.14 is a schematic structural diagram of a fourth embodiment of a display panel provided by the present application;

[0034] Fig.15 is a structural schematic diagram of a third embodiment of a pixel unit provided by the present application;

[0035] Fig.16 is a structural schematic diagram of a fourth embodiment of a pixel unit provided by the present application;

[0036] Fig.17 is a structural schematic diagram of a fifth embodiment of a pixel unit provided by the present application;

[0037] Fig.18 is a schematic structural diagram of a fifth embodiment of a display panel provided by the present application;

[0038] Fig.19 is a structural schematic diagram of a sixth embodiment of a pixel unit provided by the present application;

[0039] Fig. 20 is a structural schematic diagram of a seventh embodiment of a pixel unit provided by the present application;

[0040] Fig.21 is a schematic structural diagram of a sixth embodiment of a display panel provided by the present application;

[0041] Fig. 22 Schematic diagram of the structure of the eighth embodiment of the pixel unit provided in the present application.

[0042] Description of Figure Numbers:

[0043] 10. Pixel definition layer; 110. Pixel opening; 20. Pixel unit; 21. First pixel unit; 210. First pixel unit row; 22. Second pixel unit; 220. Second pixel unit row; 23. Sub-pixel; 231. Anode; 232. Light-emitting layer; 233. Cathode; 23A. First pixel; 23B. Second pixel; 23C. Third pixel; 24. Conductive enclosure structure; 24A. Pixel accommodating area; 240. Side wall; 241. First side wall; 242. Second side wall; 243. Inner side wall; 244. Outer side wall; 245. Conductive portion; 246. Insulating portion; 30. Drive substrate; X. First direction; Y. Second direction; d1 / d2. Thickness; 100. Evaporation source; 200. Limiting plate. DETAILED DESCRIPTION

[0044] The scheme of the embodiment of the present application is described in detail below in conjunction with the drawings of the specification.

[0045] 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.

[0046] 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.

[0047] The terms "first", "second" and "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" and "third" can explicitly 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. All directional indications (such as up, down, left, right, front, back...) in the embodiments of this application 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 that includes a series of steps or units is not limited to the listed steps or units, 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.

[0048] 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.

[0049] See also Figure 1 and Figure 2 , Figure 1 is a schematic structural diagram of an embodiment of a vapor deposition source and a limiting plate in the prior art, Figure 2 It is a structural schematic diagram of an embodiment of a display panel in the prior art.

[0050] In the actual evaporation process, since the evaporation source 100 forms a 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. However, 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 evaporation material emission angle. Figure 2In the existing design shown, the cathode 233 cannot completely cover the end of the light-emitting layer 232 along the long side direction of the evaporation source 100, so that the side wall of the conductive enclosure structure 24 extending along the moving direction of the evaporation source 100 does not contact the cathode 233, but the cathode 233 completely covers the end of the light-emitting layer 232 along the moving direction of the evaporation source 100, so that the side wall 240 of the conductive enclosure structure 24 extending along the long side direction of the evaporation source 100 can overlap with the cathode 233 of the sub-pixel 23.

[0051] See also Figures 1 to 7 , Figure 3 is a schematic structural diagram of a first embodiment of a display panel provided in the present application, Figure 4 is a schematic structural diagram of the first embodiment of the conductive enclosure structure provided by the present application, Figure 5 is a structural schematic diagram of a first embodiment of a pixel unit provided in the present application, Figure 6 yes Figure 5 Schematic diagram of the cross-sectional structure at GG in the middle. Figure 7 yes Figure 5 Schematic diagram of the cross-sectional structure at HH in the figure.

[0052] Based on the above-mentioned evaporation technology, the present application provides a display panel. The display panel includes a pixel definition layer 10, a plurality of sub-pixels 23 and a conductive enclosure structure 24. The pixel definition layer 10 has a plurality of pixel openings 110 arranged at intervals. A plurality of sub-pixels 23 are arranged in the pixel opening 110 in a one-to-one correspondence. The sub-pixel 23 includes an anode 231, a light-emitting layer 232 and a cathode 233 which are stacked in sequence. The cathode 233 is evaporated on the surface of the light-emitting layer 232 by an evaporation source 100. The conductive enclosure structure 24 is arranged protruding from the pixel definition layer 10, and surrounds the pixel opening 110 to form a pixel accommodating area 24A. The conductive enclosure structure 24 includes a plurality of interconnected side walls 240. The plurality of side walls 240 are respectively defined as a first side wall 241 and a second side wall 242. Among them, the thickness d1 of the first side wall 241 is greater than the thickness d2 of the second side wall 242, and the first side wall 241 is extended along the first direction X. The cathode 233 of the sub-pixel 23 surrounded by the conductive enclosure structure 24 is arranged in contact with the first side wall 241 to achieve electrical connection between the sub-pixel 23 and the conductive enclosure structure 24. The first direction X intersects with the scanning direction of the evaporation source 100.

[0053] Compared with the prior art, the present application maintains the thickness d1 of the first side wall 241 of the conductive enclosure structure 24 unchanged while ensuring that the area and shape of the area enclosed by the outer side wall 244 of the conductive enclosure structure 24 remain unchanged, and by reducing the thickness d2 of the second side wall 242 of the conductive enclosure structure 24, the area of ​​the area enclosed by the inner side wall 243 of the conductive enclosure structure 24 can be increased, that is, the area of ​​the pixel accommodating area 24A enclosed by the conductive enclosure structure 24 is increased, thereby increasing the effective light-emitting area of ​​the sub-pixel 23 accommodated in the pixel accommodating area 24A. This is beneficial to improving the pixel aperture ratio of the display panel; secondly, the present application maintains the thickness d1 of the first side wall 241 of the conductive enclosure structure 24 unchanged, and makes the cathode 233 of the sub-pixel 23 enclosed by the conductive enclosure structure 24 contact the first side wall 241 to achieve electrical connection between the sub-pixel 23 and the conductive enclosure structure 24, thereby maintaining good electrical connection between the sub-pixel 23 and the conductive enclosure structure 24 while improving the pixel aperture ratio, which is beneficial to achieve a mesh electrical connection of the cathode 233 of the sub-pixel 23, so as to improve the display uniformity of the display panel.

[0054] The pixel definition layer 10 is used to define the position of the sub-pixel 23. The material of the pixel definition layer 10 is not limited here and can be selected according to actual needs.

[0055] The sub-pixels 23 are arranged in a one-to-one correspondence in the pixel opening 110, that is, one sub-pixel 23 is arranged in one pixel opening 110. The area size of the pixel opening 110 determines the size of the effective light-emitting area of ​​the sub-pixel 23. One sub-pixel 23 corresponds to one color pixel. There is no restriction on the color pixel corresponding to the sub-pixel 23 and the shape of the sub-pixel 23, which can be selected according to actual needs.

[0056] The sub-pixel 23 includes an anode 231, a light-emitting layer 232, and a cathode 233 which are stacked in sequence. The cathode 233 is evaporated on the surface of the light-emitting layer 232 by the evaporation source 100. It can be understood that the light-emitting layer 232 is evaporated on the surface of the anode 231 by the evaporation source 100. The sub-pixel 23 is an OLED.

[0057] The conductive enclosure structure 24 is an annular structure. The conductive enclosure structure 24 can be a closed annular structure or a non-closed annular structure, as long as the adjacent conductive enclosure structures 24 are electrically connected to each other and the sub-pixels 23 are electrically connected to the conductive enclosure structure 24. The area enclosed by the outer side wall 244 of the conductive enclosure structure 24 can be of any shape, which is not limited here and is determined according to the actual pixel arrangement. In this embodiment, the conductive enclosure structure 24 is a closed annular structure.

[0058] The cathode 233 of the sub-pixel 23 enclosed by the conductive enclosure structure 24 is electrically connected to the conductive enclosure structure 24, and the conductive enclosure structures 24 are electrically connected to each other, so as to realize mutual electrical connection between the cathodes 233 of the sub-pixels 23, thereby realizing a mesh connection of the cathodes 233, which is beneficial to the display uniformity of the display panel.

[0059] like Figure 6 As shown, the conductive enclosure structure 24 includes a conductive portion 245 and an insulating portion 246 disposed on the upper surface of the conductive portion 245 and shielding the conductive portion 245. The insulating portion 246 extends out of the upper surface of the conductive portion 245 and extends in a direction parallel to the plane direction of the pixel definition layer 10 in a direction away from the conductive portion 245. In other words, the orthographic projection of the insulating portion 246 on the pixel definition layer 10 covers the orthographic projection of the conductive portion 245 on the pixel definition layer 10, and the orthographic projection area of ​​the insulating portion 246 on the pixel definition layer 10 is larger than the orthographic projection area of ​​the conductive portion 245 on the pixel definition layer 10. Further, the insulating portion 246 can be regarded as an eaves structure. The conductive portion 245 is used to contact and conduct with the cathode 233 of the sub-pixel 23 enclosed by the conductive enclosure structure 24 to achieve electrical connection between the sub-pixel 23 and the conductive enclosure structure 24. The insulating portion 246 is structurally configured so that the insulating portion 246 can be used to adjust the evaporation angle when evaporating the sub-pixel 23 , so that the cathode 233 of the sub-pixel 23 can better cover the end of the light-emitting layer 232 of the sub-pixel 23 and achieve good overlap with the conductive portion 245 .

[0060] It should be noted that the thickness of the sidewall 240 of the conductive enclosure structure 24 refers to the distance between the outer sidewall 244 and the inner sidewall 243 of the insulating portion 246 in the conductive enclosure structure 24 in the plane direction parallel to the pixel definition layer 10. Reducing the thickness d2 of the second sidewall 242 refers to simultaneously reducing the thickness of the conductive portion 245 and the thickness of the insulating portion 246 in the first sidewall 241, rather than reducing the thickness of the insulating portion 246 alone.

[0061] The conductive enclosure structure 24 is disposed on the upper surface of the pixel definition layer 10 and protrudes from the pixel definition layer 10 . The conductive enclosure structure 24 surrounds the pixel opening 110 to form a pixel accommodating region 24A that can accommodate the sub-pixel 23 .

[0062] In this embodiment, the pixel accommodating regions 24A are disposed in a one-to-one correspondence with the pixel openings 110. That is, one pixel accommodating region 24A accommodates one sub-pixel 23.

[0063] It should be understood that in other embodiments, one pixel accommodating area 24A may enclose multiple adjacent pixel openings 110, that is, one pixel accommodating area 24A may enclose multiple sub-pixels 23. One pixel accommodating area 24A accommodates multiple sub-pixels 23 of the same color, and without affecting the pixel crosstalk between the sub-pixels 23, it can also reduce the spacing between the sub-pixels 23 enclosed by the conductive enclosure structure 24 to improve the pixel aperture ratio.

[0064] In this embodiment, the first direction X is perpendicular to the scanning direction of the evaporation source 100 and parallel to the long side direction of the evaporation source 100. The present application utilizes the characteristic that the side wall 240 of the conductive enclosure structure 24 extending along the long side direction of the evaporation source 100 (i.e., the first direction X) can overlap with the cathode 233 of the sub-pixel 23. The present application retains the thickness d1 of the first side wall 241 extending along the first direction X unchanged, so that the cathode 233 of the sub-pixel 23 can be arranged in contact with the first side wall 241 to achieve and ensure good electrical connection between the sub-pixel 23 and the conductive enclosure structure 24; at the same time, the present application reduces the thickness of the side wall 240 of the conductive enclosure structure 24 that is not arranged in contact with the cathode 233 of the sub-pixel 23, thereby increasing the area of ​​the pixel accommodating region 24A enclosed by the inner side wall 243 of the conductive enclosure structure 24 without affecting the good electrical connection between the conductive enclosure structure 24 and the sub-pixel 23, thereby improving the pixel aperture ratio.

[0065] It should be noted that the first side wall 241 of the present application is extended along the first direction X and satisfies that the thickness d1 of the first side wall 241 is greater than the thickness d2 of the second side wall 242. In other words, the second side wall 242 can be extended along the first direction X and can be extended along other directions, and it is necessary to ensure that the thickness d2 of the second side wall 242 is less than the thickness d1 of the first side wall 241. It can be understood that the second side wall 242 is the remaining side wall 240 in the conductive enclosure structure 24 except the first side wall 241.

[0066] In this embodiment, the thicknesses d2 of the plurality of second side walls 242 are all the same, which is beneficial to the display uniformity of the display panel.

[0067] It should be understood that even if the second side wall 242 extends along the first direction X, the thickness d2 of the second side wall 242 is reduced, so that the width of the suspended portion of the insulating portion 246 extending from the upper surface of the conductive portion 245 is reduced, and the range of adjustment of the evaporation angle is greatly limited, which is not conducive to the overlap between the cathode 233 of the sub-pixel 23 and the conductive portion 245. In other words, even if the second side wall 242 is extended along the first direction X, the thickness d2 of the second side wall 242 is reduced, so that the conductive portion 245 of the second side wall 242 is poorly in contact with the cathode 233, or the conductive portion 245 of the second side wall 242 cannot even be in contact with the cathode 233.

[0068] The present application does not limit the shape of a single conductive enclosure structure 24, the number of side walls 240, and the number of first side walls 241, and they are selected according to actual needs. A single second side wall 242 of the conductive enclosure structure 24 can be an arc-shaped structure or a straight-line structure, and it is only necessary to ensure that the first side wall 241 is a straight-line structure to ensure good electrical connection between the first side wall 241 and the sub-pixel 23.

[0069] like Figure 5 As shown, a plurality of sub-pixels 23 of different colors and a conductive enclosure structure 24 surrounding the sub-pixels 23 are combined into a pixel unit 20. The pixel unit 20 is rectangular or parallelogram-shaped. Two adjacent conductive enclosure structures 24 in the pixel unit 20 share a side wall 240.

[0070] Two adjacent conductive enclosure structures 24 in the pixel unit 20 share a side wall 240 to reduce the spacing between the sub-pixels 23, which is beneficial to improving the pixel aperture ratio; at the same time, the pixel unit 20 is arranged in a rectangular or parallelogram shape, so that when the pixels are arranged, two adjacent pixel units 20 can share the side wall 240 to reduce the spacing between the sub-pixels 23 and improve the pixel aperture ratio.

[0071] In a single pixel unit 20, there can be multiple or only one sub-pixel 23 of the same color, and there is no limitation here. It only needs to ensure that the multiple sub-pixels 23 of different colors and the conductive enclosure structure 24 surrounding the sub-pixels 23 can cooperate together to form a rectangular or parallelogram pixel unit 20.

[0072] It should be noted that the shared sidewall 240 in the present application refers to a sidewall 240 of a conductive enclosure structure 24 as a part of a sidewall 240 of another conductive enclosure structure 24, or a sidewall 240 of a conductive enclosure structure 24 is completely overlapped with a sidewall 240 of another conductive enclosure structure 24 in a direction perpendicular to the pixel definition layer 10.

[0073] The spacing between the sidewall 240 of the conductive enclosure structure 24 and the sub-pixel 23 is equal to ensure that the area of ​​the pixel accommodating region 24A surrounded by the conductive enclosure structure 24 is increased, and the effective light-emitting area of ​​the sub-pixel 23 is also increased to improve the pixel aperture ratio.

[0074] It should be noted that, in the present application, the shape of the pixel accommodating area 24A and the shape of the sub-pixel 23 accommodated in the pixel accommodating area 24A are similar figures.

[0075] In the pixel unit 20, the sub-pixel 23 is at least one of a rectangle, an L-shape, a parallelogram, a triangle or a trapezoid. The sub-pixel 23 may also be other regular shapes or irregular shapes. In each pixel unit 20, the effective light-emitting areas of the plurality of sub-pixels 23 may be the same or different.

[0076] In each pixel unit 20 , the shapes of the multiple sub-pixels 23 of different colors may be the same or different, which is not limited here and is selected according to actual needs.

[0077] The present application lists several sub-pixels 23 in the pixel unit 20 of the display panel and the arrangement of the conductive enclosure structure 24 surrounding the sub-pixel 23 below to illustrate the specific arrangement of the pixel unit 20, so as to further improve the pixel aperture ratio of the display panel. It should be understood that the arrangement of the pixel unit 20 of the present application includes but is not limited to this.

[0078] In some embodiments, the sub-pixel 23 is a rectangle or a parallelogram, and the conductive enclosure structure 24 includes two first side walls 241 arranged opposite to each other along the second direction Y. A plurality of sub-pixels 23 of different colors in the pixel unit 20 are arranged flush in sequence along the first direction X. The pixel units 20 are repeatedly arranged along the first direction X and the second direction Y, respectively, and a side wall 240 of a conductive enclosure structure 24 is completely overlapped with a side wall 240 of another adjacent conductive enclosure structure 24 in a direction perpendicular to the pixel definition layer 10. The second direction Y is arranged to intersect with the first direction X.

[0079] That is to say, the area enclosed by the outer side wall 244 of the conductive enclosure structure 24 is a rectangle or a parallelogram. The conductive enclosure structure 24 includes two second side walls 242 arranged oppositely along the first direction X and two first side walls 241 arranged oppositely along the second direction Y. In the present application, multiple sub-pixels 23 of different colors in the pixel unit 20 are arranged flush in sequence along the first direction X, which means that in each pixel unit 20, one side edge of all sub-pixels 23 along the second direction Y is aligned along the first direction X (that is, one side edge of all sub-pixels 23 along the second direction Y is located on the same straight line), and the other side edge of all sub-pixels 23 along the second direction Y is aligned along the first direction X (that is, the other side edge of all sub-pixels 23 along the second direction Y is located on the same straight line). A side wall 240 of a conductive enclosure structure 24 is completely overlapped with a side wall 240 of another adjacent conductive enclosure structure 24 in a direction perpendicular to the pixel definition layer 10, which is beneficial to reducing the gap between the sub-pixels 23 and improving the pixel aperture ratio; at the same time, it ensures that the spacing between the sub-pixels 23 in the first direction X is equal, and ensures that the spacing between the sub-pixels 23 in the second direction Y is equal, which is beneficial to improving the display uniformity of the display panel.

[0080] In the present embodiment, the area enclosed by the outer sidewall 244 of the conductive enclosure structure 24 is rectangular. All sub-pixels 23 are rectangular. The first direction X is perpendicular to the second direction Y. The multiple sub-pixels 23 of different colors in the pixel unit 20 are respectively a first pixel 23A, a second pixel 23B and a third pixel 23C. The first pixel 23A is a red pixel, the second pixel 23B is a green pixel and the third pixel 23C is a blue pixel.

[0081] It should be understood that the first pixel 23A, the second pixel 23B and the third pixel 23C may be pixels of other colors. The conductive enclosure structure 24 may also include sub-pixels 23 of more colors.

[0082] The display panel further includes a driving substrate 30 , which is disposed on a side of the pixel definition layer 10 away from the conductive enclosure structure 24 , and is used to drive the sub-pixels 23 to emit light.

[0083] See also Figure 6 , Figures 8 to 10 , Figure 8 is a schematic structural diagram of a second embodiment of a display panel provided by the present application, Fig. 9 is a structural schematic diagram of the second embodiment of the conductive enclosure structure provided by the present application, Fig.10 It is a structural schematic diagram of the second embodiment of the pixel unit provided in this application.

[0084] The second embodiment of the display panel provided in the present application has a substantially same structure as the first embodiment of the display panel provided in the present application, except that all sub-pixels 23 are parallelograms.

[0085] In this embodiment, all sub-pixels 23 are parallelograms. The pixel unit 20 is a parallelogram. The first direction X and the second direction Y are arranged obliquely and not vertically.

[0086] The effects achievable by this embodiment are the same as those achievable by the first embodiment of the display panel provided in the present application, and will not be described in detail here.

[0087] See also Figure 6 , 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 structural schematic diagram of the third embodiment of the conductive enclosure structure provided by the present application, Fig.13 It is a structural schematic diagram of an embodiment of the first pixel unit and the second pixel unit provided in the present application.

[0088] The third embodiment of the display panel provided in the present application has a substantially identical structure to the first embodiment of the display panel provided in the present application, except that all the conductive enclosure structures 24 include a first side wall 241 .

[0089] The sub-pixel 23 is a rectangle or a parallelogram, and the conductive enclosure structure 24 includes a first side wall 241. A plurality of sub-pixels 23 of different colors in the pixel unit 20 are arranged in parallel in the first direction X. The pixel units 20 are defined as first pixel units 21 and second pixel units 22. The first pixel units 21 are repeatedly arranged in the first direction X to form a first pixel unit row 210, and the second pixel units 22 are repeatedly arranged in the first direction X to form a second pixel unit row 220. The first pixel unit row 210 and the second pixel unit row 220 are alternately and flushly arranged in the second direction Y. The pixel arrangement of the sub-pixel 23 in the first pixel unit 21 is the same as the pixel arrangement of the sub-pixel 23 in the second pixel unit 22. In the first direction X, two adjacent conductive enclosure structures 24 share the second side wall 242. In the second direction Y, the conductive enclosure structure 24 in the first pixel unit 21 and the conductive enclosure structure 24 in the adjacent second pixel unit 22 share the first side wall 241 or the second side wall 242. The second direction Y intersects with the first direction X.

[0090] That is, the area enclosed by the outer side wall 244 of the conductive enclosure structure 24 is a rectangle or a parallelogram. The conductive enclosure structure 24 includes a first side wall 241 and a second side wall 242 that are oppositely and parallelly arranged along the second direction Y, and two second side walls 242 that are oppositely arranged along the first direction X. The first side wall 241 of the conductive enclosure structure 24 in the first pixel unit 21 is located on one side of the pixel unit 20 along the second direction Y, and the first side wall 241 of the conductive enclosure structure 24 in the second pixel unit 22 is located on the other side of the pixel unit 20 along the second direction Y.

[0091] The first pixel unit row 210 and the second pixel unit row 220 are alternately and flushly arranged in sequence along the second direction Y, which means that one side of the first pixel unit row 210 along the first direction X is aligned with one side of the second pixel unit row 220 along the first direction X in the first direction X (that is, one side of the first pixel unit row 210 along the first direction X and one side of the second pixel unit row 220 along the first direction X are located on the same straight line), and the other side of the first pixel unit row 210 along the first direction X is aligned with the other side of the second pixel unit row 220 along the first direction X in the first direction X (that is, the other side of the first pixel unit row 210 along the first direction X and the other side of the second pixel unit row 220 along the first direction X are located on the same straight line).

[0092] In this embodiment, the sub-pixel 23 is illustrated as a rectangle.

[0093] Compared with the first embodiment of the display panel provided in the present application, the conductive enclosure structure 24 in this embodiment includes only one first side wall 241, so that the number of second side walls 242 is increased, thereby increasing the area of ​​the pixel accommodating region 24A enclosed by the conductive enclosure structure 24 as much as possible, thereby further improving the pixel aperture ratio.

[0094] See also Fig.14 , Fig.14 is a schematic structural diagram of a fourth embodiment of a display panel provided in the present application, Fig.15 It is a structural schematic diagram of the third embodiment of the pixel unit provided in the present application.

[0095] The fourth embodiment of the display panel provided in the present application has a substantially identical structure to the first embodiment of the display panel provided in the present application, except that the arrangement of the sub-pixels 23 in the pixel unit 20 is different.

[0096] The plurality of sub-pixels 23 of different colors in the pixel unit 20 are respectively a first pixel 23A, a second pixel 23B and a third pixel 23C. The first pixel 23A is extended along the first direction X, and the second pixel 23B and the third pixel 23C are arranged flush along the first direction X. A side edge of the second pixel 23B away from the third pixel 23C is located in the same straight line as a side edge of the first pixel 23A. A side edge of the third pixel 23C away from the second pixel 23B is located in the same straight line as another side edge of the first pixel 23A. The pixel unit 20 is repeatedly arranged and flush along the first direction X and the second direction Y, respectively. The second direction Y is arranged to intersect with the first direction X.

[0097] The second pixel 23B and the third pixel 23C are arranged flush along the first direction X. It can be understood that one end of the third pixel 23C along the second direction Y is aligned with one end of the second pixel 23B along the second direction Y along the first direction X, and the other end of the third pixel 23C along the second direction Y is aligned with the other end of the second pixel 23B along the second direction Y along the first direction X.

[0098] The end of the sub-pixel 23 may be a side or a vertex.

[0099] In this embodiment, the sub-pixels 23 are all rectangular. One side of the second pixel 23B along the second direction Y and one side of the third pixel 23C along the second direction Y are located on the same straight line, and the other side of the second pixel 23B along the second direction Y and the other side of the third pixel 23C along the second direction Y are located on the same straight line.

[0100] See also Figures 14 to 17 , Fig.16 is a schematic structural diagram of a fourth embodiment of a pixel unit provided in the present application, Fig.17It is a structural schematic diagram of the fifth embodiment of the pixel unit provided in the present application.

[0101] It should be understood that the first pixel 23A can be a parallelogram, and the second pixel 23B and the third pixel 23C can be trapezoids; or the first pixel 23A can be a rectangle, and the second pixel 23B and the third pixel 23C can be triangles. There is no restriction on the shape of the sub-pixel 23, as long as the pixel unit 20 is a rectangle or a parallelogram, and adjacent pixel units 20 can share a side wall 240 to improve the pixel aperture ratio.

[0102] The conductive enclosure structure 24 includes two first side walls 241 disposed opposite to each other along the second direction Y. In the pixel unit 20 , two adjacent conductive enclosure structures 24 in the second direction Y share the first side wall 241 of the conductive enclosure structure 24 enclosing the first pixel 23A.

[0103] Compared with the first embodiment of the display panel provided in the present application, this embodiment can also improve the pixel aperture ratio. At the same time, the arrangement of the sub-pixels 23 in the pixel unit 20 in this implementation can also improve the color edge problem of the display panel.

[0104] See also Figure 6 , Fig.18 and Fig.19 , Fig.18 is a schematic structural diagram of a fifth embodiment of a display panel provided in the present application, Fig.19 is a schematic structural diagram of a sixth embodiment of a pixel unit provided in the present application, Fig. 20 is a structural schematic diagram of the seventh embodiment of the pixel unit provided in the present application.

[0105] The fifth embodiment of the display panel provided in the present application is substantially identical in structure to the fourth embodiment of the display panel provided in the present application, except that the conductive enclosure structure 24 includes a first side wall 241 .

[0106] The conductive enclosure structure 24 includes a first side wall 241. In the pixel unit 20, two adjacent conductive enclosure structures 24 in the second direction Y share the first side wall 241 of the conductive enclosure structure 24 enclosing the first pixel 23A, or two adjacent conductive enclosure structures 24 in the second direction Y share the second side wall 242 of the conductive enclosure structure 24 enclosing the first pixel 23A.

[0107] In this embodiment, the sub-pixels 23 are all rectangular. In the pixel unit 20, the first side wall 241 of the conductive enclosure structure 24 surrounding the first pixel 23A is located on the side of the first pixel 23A away from the second pixel 23B, the first side wall 241 of the conductive enclosure structure 24 surrounding the second pixel 23B is located on the side of the second pixel 23B away from the first pixel 23A, and the first side wall 241 of the conductive enclosure structure 24 surrounding the third pixel 23C is located on the side of the third pixel 23C away from the first pixel 23A. In the pixel unit 20, two adjacent conductive enclosure structures 24 in the second direction Y share the second side wall 242 of the conductive enclosure structure 24 surrounding the first pixel 23A, so as to reduce the spacing between the sub-pixels 23 in the pixel unit 20, thereby improving the pixel aperture ratio.

[0108] It should be understood that in other embodiments, such as Fig. 20 As shown, in the pixel unit 20 , two adjacent conductive enclosure structures 24 in the second direction Y share the first side wall 241 of the conductive enclosure structure 24 that encloses the first pixel 23A.

[0109] The pixel units 20 are repeatedly arranged and flush along the first direction X and the second direction Y. The second direction Y intersects the first direction X. Two adjacent pixel units 20 share the second side wall 242 of the conductive enclosure structure 24 to reduce the spacing between the sub-pixels 23 in different pixel units 20, which is beneficial to improve the pixel aperture ratio.

[0110] Compared with the fourth embodiment of the display panel provided in the present application, the arrangement of the sub-pixels 23 in the pixel unit 20 in this embodiment can also improve the color edge problem of the display panel. The conductive enclosure structure 24 in this embodiment includes only one first side wall 241, so that the number of second side walls 242 is increased, and the area of ​​the pixel accommodating area 24A surrounded by the conductive enclosure structure 24 is increased as much as possible, further improving the pixel aperture ratio.

[0111] See also Figure 6 , Fig.21 and Fig. 22 , Fig.21 is a schematic structural diagram of a sixth embodiment of a display panel provided in the present application, Fig. 22 Schematic diagram of the structure of the eighth embodiment of the pixel unit provided in the present application.

[0112] The sixth embodiment of the display panel provided in the present application has a substantially same structure as the fifth embodiment of the display panel provided in the present application, except that the first pixel 23A is L-shaped.

[0113] In the present embodiment, the plurality of sub-pixels 23 of different colors in the pixel unit 20 are respectively a first pixel 23A, a second pixel 23B, and a third pixel 23C. The second pixel 23B and the third pixel 23C are both rectangular and arranged flush along the second direction Y. The first pixel 23A is L-shaped and half surrounds the second pixel 23B and the third pixel 23C. In the second direction Y, the second pixel 23B is located between the first pixel 23A and the third pixel 23C.

[0114] The second pixel 23B and the third pixel 23C are arranged flush along the second direction Y, which means that one side of the second pixel 23B along the first direction X and one side of the third pixel 23C along the first direction X are located on the same straight line, and the other side of the second pixel 23B along the first direction X and the other side of the third pixel 23C along the first direction X are located on the same straight line.

[0115] A side edge of the first pixel 23A along the first direction X, a side edge of the second pixel 23B along the first direction X, and a side edge of the third pixel 23C along the first direction X are aligned along the second direction Y. A side edge of the first pixel 23A along the second direction Y and a side edge of the third pixel 23C away from the second pixel 23B are located on the same straight line.

[0116] In the pixel unit 20 , at least one conductive enclosure structure 24 includes two first side walls 241 that are oppositely arranged along the second direction Y, so as to ensure that adjacent conductive enclosure structures 24 in the pixel unit 20 can share the side wall 240 .

[0117] In this embodiment, the first side wall 241 of the conductive enclosure structure 24 surrounding the first pixel 23A is located on the side of the first pixel 23A close to the second pixel 23B, the conductive enclosure structure 24 surrounding the second pixel 23B includes two first side walls 241 arranged opposite to each other along the second direction Y, and the first side wall 241 of the conductive enclosure structure 24 surrounding the third pixel 23C is located on the side of the third pixel 23C close to the second pixel 23B.

[0118] Compared with the fifth embodiment of the display panel provided in the present application, the arrangement of the sub-pixels 23 in the pixel unit 20 in this embodiment can also improve the color edge problem of the display panel and increase the pixel aperture ratio.

[0119] The present application provides a display device, which includes the above-mentioned display panel.

[0120] 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.

[0121] 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: a pixel definition layer having a plurality of pixel openings arranged at intervals; A plurality of sub-pixels are disposed in the pixel opening in a one-to-one correspondence; The sub-pixel comprises an anode, a light-emitting layer and a cathode which are stacked in sequence; the cathode is evaporated on the surface of the light-emitting layer by an evaporation source; A conductive enclosure structure protrudes from the pixel definition layer and surrounds the pixel opening to form a pixel accommodating area; The conductive enclosure structure comprises a plurality of interconnected side walls; the plurality of side walls are respectively defined as a first side wall and a second side wall; wherein the thickness of the first side wall is greater than the thickness of the second side wall, and the first side wall is extended along a first direction; The cathode of the sub-pixel surrounded by the conductive enclosure structure is arranged in contact with the first side wall to achieve electrical connection between the sub-pixel and the conductive enclosure structure; the first direction is arranged to intersect with the scanning direction of the evaporation source; The conductive enclosure structure comprises a conductive portion and an insulating portion disposed on the upper surface of the conductive portion and shielding the conductive portion; the insulating portion extends out of the upper surface of the conductive portion and extends in a direction parallel to the plane direction of the pixel definition layer toward a direction away from the conductive portion; The thickness of the sidewall of the conductive enclosure structure refers to the distance between the outer sidewall and the inner sidewall of the insulating portion in the conductive enclosure structure in a plane direction parallel to the pixel definition layer.

2. The display panel according to claim 1, characterized in that: The pixel accommodating area is arranged in one-to-one correspondence with the pixel opening; the first direction is perpendicular to the scanning direction of the evaporation source and parallel to the long side direction of the evaporation source; a plurality of sub-pixels of different colors and the conductive enclosure structure surrounding the sub-pixels are combined into a pixel unit; the pixel unit is rectangular or parallelogram; two adjacent conductive enclosure structures in the pixel unit share the side wall.

3. The display panel according to claim 2, characterized in that: The spacing between the sidewalls of the conductive enclosure structure and the sub-pixels is equal; in the pixel unit, the sub-pixels are at least one of rectangular, L-shaped, parallelogram, triangle or trapezoidal.

4. The display panel according to claim 3, characterized in that: The sub-pixel is a rectangle or a parallelogram, and the conductive enclosure structure includes two first side walls arranged opposite to each other along the second direction; the multiple sub-pixels of different colors in the pixel unit are arranged flush along the first direction in sequence; the pixel units are repeatedly arranged along the first direction and the second direction respectively, and a side wall of one conductive enclosure structure is the same side wall as a side wall of another adjacent conductive enclosure structure; wherein the second direction is arranged to intersect with the first direction.

5. The display panel according to claim 4, characterized in that: The sub-pixel is a rectangle or a parallelogram, and the conductive enclosure structure includes a first side wall; the multiple sub-pixels of different colors in the pixel unit are arranged in parallel along the first direction in sequence; the pixel units are defined as a first pixel unit and a second pixel unit respectively; the first pixel units are repeatedly arranged along the first direction to form a first pixel unit row, and the second pixel units are repeatedly arranged along the first direction to form a second pixel unit row; the first pixel unit row and the second pixel unit row are alternately and flushly arranged in sequence along the second direction; the pixel arrangement of the sub-pixels in the first pixel unit is the same as the pixel arrangement of the sub-pixels in the second pixel unit; in the first direction, two adjacent conductive enclosure structures share the second side wall; in the second direction, the conductive enclosure structure in the first pixel unit and the conductive enclosure structure in the adjacent second pixel unit share the first side wall or the second side wall; wherein the second direction is arranged to intersect with the first direction.

6. The display panel according to claim 4, characterized in that: The multiple sub-pixels of different colors in the pixel unit are respectively a first pixel, a second pixel and a third pixel; the first pixel is extended along the first direction, and the second pixel and the third pixel are flush along the first direction; a side of the second pixel away from the third pixel is located in the same straight line as a side of the first pixel; a side of the third pixel away from the second pixel is located in the same straight line as the other side of the first pixel; the pixel units are repeatedly arranged and flush along the first direction and the second direction, respectively; wherein the second direction intersects with the first direction.

7. The display panel according to claim 6, characterized in that: The conductive enclosure structure includes two first side walls arranged opposite to each other along the second direction; in the pixel unit, two adjacent conductive enclosure structures in the second direction share the first side wall of the conductive enclosure structure enclosing the first pixel.

8. The display panel according to claim 6, characterized in that: The conductive enclosure structure includes a first side wall; in the pixel unit, two adjacent conductive enclosure structures in the second direction share the first side wall of the conductive enclosure structure enclosing the first pixel, or two adjacent conductive enclosure structures in the second direction share the second side wall of the conductive enclosure structure enclosing the first pixel.

9. The display panel according to claim 6, characterized in that: The multiple sub-pixels of different colors in the pixel unit are respectively a first pixel, a second pixel and a third pixel; the second pixel and the third pixel are both rectangular and arranged flush along the second direction; the first pixel is L-shaped and half-surrounds the second pixel and the third pixel; in the second direction, the second pixel is located between the first pixel and the third pixel.

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

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