Display panel and display device

Abstract

Disclosed are a display panel and a display device. Spacers in the display panel comprise first spacers and second spacers; each first spacer is located between two or more adjacent sub-pixels in a corresponding first pixel column, each second spacer is located in a corresponding second pixel column, and / or each second spacer is located between a first pixel column and a second pixel column which are adjacent to each other; and when the overall supporting of the first spacers is insufficient and a fine metal mask is deformed and bends, the second spacers achieve the effect of supporting.

Description

Display panel and display device 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] When using a fine metal mask (FMM) to vapor-deposit sub-pixel light-emitting layers and other film layers, spacers support the FMM used to deposit the light-emitting layer. However, in actual production, when the pixel aperture ratio is large, the overall support of the spacers is insufficient. Because the FMM is made of metal and deforms under the influence of gravity, it will sag to a certain extent. This can cause the FMM to come into direct physical contact with the surface of the pixel definition layer on the display substrate, scratching the pixel definition layer. This can lead to poor display panel packaging and the formation of black spots. SUMMARY OF THE INVENTION

[0003] The embodiments of the present application provide a display panel and a display device, which can solve the technical problem that the fine metal mask plate and the surface of the pixel definition layer are in direct physical contact and scratch the pixel definition layer due to insufficient overall support of the spacer.

[0004] The present application provides a display panel, comprising:

[0005] substrate;

[0006] A pixel definition layer is provided on one side of the base substrate, wherein the pixel definition layer includes a plurality of dams and a pixel opening located between two adjacent dams;

[0007] a plurality of pixel columns, including a first pixel column and a second pixel column alternately arranged in a pixel row direction, wherein the first pixel column and the second pixel column each include a plurality of sub-pixels, and the sub-pixels are located within the pixel opening; and

[0008] A plurality of spacers are arranged on a side of the dam away from the base substrate, and the plurality of spacers include a plurality of first spacers and a plurality of second spacers; wherein the first spacers are located between two or more adjacent sub-pixels in the first pixel column, the second spacers are located between two or more adjacent sub-pixels in the second pixel column, and / or the second spacers are located between adjacent first pixel column and second pixel column.

[0009] The present application provides a display device, comprising the above-mentioned display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0011] FIG1 is a schematic diagram of a first planar structure of a display panel provided in an embodiment of the present application.

[0012] FIG. 2A is a schematic diagram of a first alignment structure of the display panel and the fine metal mask in FIG. 1 .

[0013] FIG. 2B is a schematic diagram of a second alignment structure between the display panel and the fine metal mask in FIG. 1 .

[0014] FIG3 is a schematic diagram of a second planar structure of a display panel provided in an embodiment of the present application.

[0015] FIG4 is a schematic diagram of a third planar structure of a display panel provided in an embodiment of the present application.

[0016] FIG5 is a schematic diagram of a fourth planar structure of a display panel provided in an embodiment of the present application.

[0017] FIG6 is a schematic diagram of a fifth planar structure of a display panel provided in an embodiment of the present application.

[0018] Description of reference numerals:

[0019] 10. Base substrate; 11. Pixel definition layer; 111. Dam; 112. Pixel opening; 12. Pixel column; 121. First pixel column; 1211. First type sub-pixel; 122. Second pixel column; 1221. Second type sub-pixel; 1222. Third type sub-pixel; 13. Spacer; 131. First spacer; 132. Second spacer; 14. Drive array layer; 15. Anode; 16. Central axis; 17. Sub-pixel block; 20. Fine metal mask; 21. Opening. Modes for Carrying Out the Invention

[0020] The present application provides a display panel, comprising:

[0021] substrate;

[0022] A pixel definition layer is provided on one side of the base substrate, wherein the pixel definition layer includes a plurality of dams and a pixel opening located between two adjacent dams;

[0023] a plurality of pixel columns, including a first pixel column and a second pixel column alternately arranged in a pixel row direction, wherein the first pixel column and the second pixel column each include a plurality of sub-pixels, and the sub-pixels are located within the pixel opening; and

[0024] A plurality of spacers are arranged on a side of the dam away from the base substrate, and the plurality of spacers include a plurality of first spacers and a plurality of second spacers; wherein the first spacers are located between two or more adjacent sub-pixels in the first pixel column, the second spacers are located between two or more adjacent sub-pixels in the second pixel column, and / or the second spacers are located between adjacent first pixel column and second pixel column.

[0025] According to the display panel provided by the present application, the plurality of sub-pixels in the first pixel column include a plurality of first-type sub-pixels, and the plurality of sub-pixels in the second pixel column include a plurality of second-type sub-pixels and a plurality of third-type sub-pixels arranged alternately;

[0026] The second spacer is located on a central axis between adjacent second-type sub-pixels and third-type sub-pixels in the same second pixel column.

[0027] According to the display panel provided by the present application, the second spacer is located at the center point of a graphic area surrounded by lines connecting adjacent first-type sub-pixels, second-type sub-pixels, and third-type sub-pixels.

[0028] According to the display panel provided in the present application, the first type of sub-pixels include blue sub-pixels, the second type of sub-pixels include one of red sub-pixels and green sub-pixels, and the third type of sub-pixels include the other of the red sub-pixels and the green sub-pixels.

[0029] According to the display panel provided in the present application, in the thickness direction of the display panel, the height of the second spacer is less than or equal to the height of the first spacer.

[0030] According to the display panel provided by the present application, the distribution density of the second spacers is less than or equal to the distribution density of the first spacers.

[0031] According to the display panel provided in the present application, the distribution density of the second spacer is in the range of 0.2%-5%, and the distribution density of the first spacer is in the range of 1%-10%.

[0032] According to the display panel provided by the present application, the sub-pixels in the second pixel column include a plurality of sub-pixel blocks arranged at intervals, and the second spacer is arranged between two adjacent sub-pixel blocks.

[0033] According to the display panel provided in the present application, the orthographic projection area of ​​the second spacer on the base substrate is smaller than the orthographic projection area of ​​the first spacer on the base substrate.

[0034] The present application provides a display device, comprising the above-mentioned display panel.

[0035] In the display panel and display device provided in the embodiments of the present application, a first spacer is arranged between two or more adjacent sub-pixels in a first pixel column, and a second spacer is arranged between two or more adjacent sub-pixels in a second pixel column where the first spacer is not arranged, and / or between adjacent first pixel columns and second pixel columns; when the overall support of the first spacer is insufficient and the fine metal mask plate is deformed and bent, the second spacer can support the fine metal mask plate, thereby reducing the risk of the fine metal mask plate directly contacting the surface of the pixel definition layer and scratching the pixel definition layer, thereby avoiding poor packaging of the display panel and the generation of black spots.

[0036] 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 embodiments described 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 those skilled in the art without making creative efforts are within the scope of protection of this application.

[0037] In the description of this application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0038] In the present application, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include the first and second features being in direct contact, or the first and second features not being in direct contact but being in contact through another feature between them.

[0039] This application addresses the technical problem in existing display panels where the fine metal mask plate comes into direct physical contact with the surface of the pixel definition layer and scratches the pixel definition layer due to insufficient overall support from the spacers. The application provides a first spacer between two or more adjacent sub-pixels in a first pixel column, and a second spacer between two or more adjacent sub-pixels in a second pixel column where the first spacer is not provided, and / or between adjacent first and second pixel columns. The first spacer plays a primary supporting role, and the second spacer plays an auxiliary supporting role. When the overall support of the first spacer is insufficient and the fine metal mask plate deforms and bends, the second spacer can support the fine metal mask plate, reducing the risk of the fine metal mask plate directly contacting the surface of the pixel definition layer and scratching the pixel definition layer, thereby avoiding poor packaging of the display panel and the generation of black spots.

[0040] The display panel and the display device provided by the embodiments of the present application will be described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments.

[0041] Referring to Figures 1 and 2A-2B, the display panel provided in the embodiment of the present application includes a base substrate 10, a pixel definition layer 11, a plurality of pixel columns 12, and a plurality of spacers 13. The pixel definition layer 11 is disposed on one side of the base substrate 10, and the pixel definition layer 11 includes a plurality of dams 111 and a pixel opening 112 located between two adjacent dams 111. The plurality of pixel columns 12 include a first pixel column 121 and a second pixel column 122 arranged alternately in the pixel row direction, and the first pixel column 121 and the second pixel column 122 each include a plurality of sub-pixels, and the sub-pixels are located within the pixel opening 112. The plurality of spacers 13 are disposed on a side of the dam 111 away from the base substrate 10, and the plurality of spacers 13 include a plurality of first spacers 131 and a plurality of second spacers 132.

[0042] In the embodiment of the present application, the first spacer 131 is located between two or more adjacent sub-pixels in the first pixel column 121. The second spacer 132 is located between two or more adjacent sub-pixels in the second pixel column 122, and / or the second spacer 132 is located between adjacent first pixel column 121 and second pixel column 122. When the overall support of the first spacer 131 is insufficient and the fine metal mask plate 20 deforms and bends, the second spacer 132 can support the fine metal mask plate 20, reducing the risk of the fine metal mask plate 20 directly contacting the surface of the pixel definition layer 11 and scratching the pixel definition layer 11, thereby preventing poor packaging of the display panel and the generation of black spots. In fact, the second spacer 132 can support the fine metal mask plate 20, reducing the risk of the fine metal mask plate 20 directly contacting the surface of the dam 111 and scratching the dam 111.

[0043] It should be noted that the rectangular block in Figure 1 is the first spacer 131, and the triangular block in Figure 1 is the second spacer 132, but this is only for the purpose of distinction. The first spacer 131 and the second spacer 132 are not limited to the shapes shown in Figure 1.

[0044] Specifically, the base substrate 10 can be formed of any suitable flexible insulating material, for example, a polymer material such as polyimide (PI), polycarbonate (PC), polyethersulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyarylate (PAR), or fiberglass reinforced plastic (FRP). The base substrate 10 can be transparent, translucent, or opaque.

[0045] Specifically, the display panel may further include a drive array layer 14, which is located on the side of the base substrate 10 close to the pixel definition layer 11. The drive array layer 14 includes multiple thin film transistors for driving the sub-pixels to emit light. The thin film transistors can be top-gate thin film transistors or bottom-gate thin film transistors. The thin film transistors include a gate electrode, a gate insulation layer, a source electrode, a drain electrode, and an active layer. A flat layer is also provided between the drive array layer 14 and the pixel definition layer 11 to flatten the drive array layer 14. A buffer layer may also be provided between the base substrate 10 and the drive array layer 14. Since this is a prior art, it will not be described in detail here.

[0046] Specifically, the multiple pixel columns 12 are spaced apart along the pixel row direction, and the multiple sub-pixels within each pixel column 12 are spaced apart along the pixel column direction, with the pixel row direction and the pixel column direction being perpendicular to each other. Each sub-pixel includes at least an anode 15, a cathode (not shown), and a light-emitting device layer located between the anode 15 and the cathode. The light-emitting device layer includes a hole injection layer, a hole transport layer, a light-emitting material layer, an electron transport layer, and an electron injection layer. When a voltage is applied between the anode 15 and the cathode, the light-emitting device layer emits visible light, thereby creating an image that can be recognized by the user.

[0047] The display panel further includes an encapsulation layer (not shown in the figure), which covers the sub-pixels and the dam 111 of the pixel definition layer 11. The encapsulation layer can be encapsulated by thin film, for example, an inorganic-organic-inorganic encapsulation method.

[0048] As can be understood, as shown in Figures 2A and 2B, the fine metal mask 20 is provided with a plurality of openings 21 corresponding one-to-one with the pixel openings 112. The luminescent material falls into the pixel openings 112 through the plurality of openings 21, thereby achieving the evaporation of the luminescent material layer. During the evaporation process, the fine metal mask 20 is subjected to a downward pressure, and after being pressed down, it needs to be repeatedly moved and calibrated to ensure accurate alignment between the fine metal mask 20 and the first spacers 131. In actual products, to minimize pixel aperture, spacers 13 (i.e., first spacers 131) are typically only provided in a portion of the plurality of pixel rows (e.g., the first pixel row 121), while remaining pixel rows (e.g., the second pixel row 122) are not provided with spacers. This results in stronger support for the fine metal mask 20 near the spacers, while weaker support for the fine metal mask 20 away from the spacers.

[0049] The material of the fine metal mask 20 includes invar (invar steel), such as an iron and nickel alloy, which has a small thermal expansion coefficient and is prone to deformation. Therefore, at a location away from the spacer, the mesh surface of the fine metal mask 20 is prone to bending and deforming toward the side close to the pixel definition layer 11, resulting in direct contact between the two surfaces, increasing the risk of the edge of the opening 21 of the fine metal mask 20 scratching the dam 111. If the dam 111 is scratched, a large amount of debris and particles will be generated, adhering to the surface of the dam 111 or falling into the pixel opening 112. During subsequent packaging, since the packaging layer is relatively thin, it cannot well cover the debris and particles, which can easily cause packaging failure and produce dark spots. What's more, the debris and particles scratch the existing film layer, causing the display panel to produce defects.

[0050] In particular, to reduce the luminous current density of a single sub-pixel and maintain a longer lifespan at the same brightness, the pixel aperture ratio is typically increased. A larger pixel aperture ratio means a larger volume of a single sub-pixel, a larger pixel opening 112 of the pixel definition layer 11, and a larger distance between two adjacent dams 111, and a larger actual distance between two adjacent first spacers 131. This results in insufficient support for the first spacers 131, further increasing the risk of scratching the pixel definition layer 11.

[0051] For example, to increase the pixel aperture ratio, the embodiment of the present application takes the sub-pixels as an example of a Real RGB arrangement. That is, in the embodiment of the present application, the multiple sub-pixels of the first pixel column 121 include multiple first-type sub-pixels 1211, and the multiple sub-pixels of the second pixel column 122 include multiple second-type sub-pixels 1221 and multiple third-type sub-pixels 1222 that are alternately arranged. The first-type sub-pixels 1211, the second-type sub-pixels 1221, and the third-type sub-pixels 1222 emit light of different colors. Adjacent first-type sub-pixels 1211, second-type sub-pixels 1221, and third-type sub-pixels 1222 can form a pixel unit, which ultimately emits white light.

[0052] In the embodiment of the present application, the second spacer 132 is located on the central axis 16 of the adjacent second-type sub-pixels 1221 and the third-type sub-pixels 1222 in the same second pixel column 122. Because the second spacer 132 is light-transmissive, this arrangement ensures that the amount of light emitted by the second-type sub-pixels 1221 and the third-type sub-pixels 1222 passing through the second spacer 132 remains consistent, thereby achieving more uniform light output from the display panel.

[0053] Specifically, the first-type sub-pixel 1211 includes a blue sub-pixel, the second-type sub-pixel 1221 includes one of a red sub-pixel and a green sub-pixel, and the third-type sub-pixel 1222 includes the other of the red sub-pixel and the green sub-pixel. That is, in this application, the red sub-pixel and the green sub-pixel are located in the same pixel column, while the blue sub-pixel, the red sub-pixel, and the green sub-pixel are located in a different pixel column.

[0054] The embodiment of the present application is described by taking the use of the fine metal mask 20 to evaporate the light-emitting material layer of the blue sub-pixel as an example.

[0055] To further increase the pixel aperture ratio and reduce the distribution density of the first spacers 131, a first spacer 131 is typically provided for every two blue sub-pixels, i.e., two blue sub-pixels are provided between two first spacers 131, and one opening of the fine metal mask 20 corresponds to two blue sub-pixels. With this arrangement, the first spacers 131 provide strong support for the portion of the fine metal mask 20 corresponding to the first pixel column 121, preventing the dams 111 in the first pixel column 121 from being scratched. However, the first spacers 131 provide weak support for the portions of the fine metal mask 20 corresponding to the first pixel column 121, resulting in a risk of scratching the dams 111 outside the first pixel column 121, i.e., the second pixel column 122 and the dams 111 between the first and second pixel columns 121, 122. For example, the fine metal mask 20 in FIG. 2A does not bend or deform under the support of the first spacer 131 , wherein the display panel in FIG. 2A is a cross-sectional structure along the section line AA′ in FIG. 1 .

[0056] In view of this, the embodiment of the present application adds a second spacer 132. The second spacer 132 contacts the mesh surface of the fine metal mask plate 20 when it bends. Like the first spacer 131, the second spacer 132 also supports the fine metal mask plate 20, thereby preventing the second pixel column 122 and the dam 111 between the first pixel column 121 and the second pixel column 122 from being scratched by the fine metal mask plate 20. For example, the fine metal mask plate 20 in Figure 2B is supported by the second spacer 132 and does not contact the dam 111. The display panel in Figure 2B is a cross-sectional structure along the section line BA' in Figure 1.

[0057] It should be noted that the Real RGB arrangement provided in the embodiment of the present application is only an example, and other arrangements are also applicable to the technical solution of the present application.

[0058] The second spacer 132 can be disposed at any position of the dam 111 except the first pixel column 121 to play a supporting role. Various embodiments of different positions of the auxiliary spacer will be described below.

[0059] Please refer to FIG. 1 again. In one embodiment, the second spacer 132 is located in the second pixel column 122 . Specifically, the second spacer 132 is located between the adjacent red sub-pixel and the adjacent green sub-pixel.

[0060] Referring to FIG3 , in another embodiment, the second spacer 132 is located between adjacent first pixel columns 121 and second pixel columns 122. Specifically, the second spacer 132 is located within a graphic region enclosed by lines connecting the center points of the first-type sub-pixel 1211, the second-type sub-pixel 1221, and the third-type sub-pixel 1222. Furthermore, the center of the second spacer 132 is located at the center of the graphic region enclosed by lines connecting the center points of the first-type sub-pixel 1211, the second-type sub-pixel 1221, and the third-type sub-pixel 1222.

[0061] In another embodiment, part of the second spacer 132 is located in the second pixel column 122, and part of the second spacer 132 is located between the adjacent first pixel column 121 and the second pixel column 122. By arranging multiple second spacers 132 at different positions, the supporting force of the second spacer 132 on the fine metal mask 20 can be more uniform.

[0062] Referring to Figures 4 and 5, in one embodiment, the sub-pixels in the second pixel column 122 include a plurality of spaced-apart sub-pixel blocks 17, and the second spacer 132 is disposed between two adjacent sub-pixel blocks 17. For example, as shown in Figure 4, the red sub-pixel includes a plurality of spaced-apart red sub-pixel blocks, and the second spacer 132 is disposed between two adjacent red sub-pixel blocks. Alternatively, as shown in Figure 5, the green sub-pixel includes a plurality of spaced-apart green sub-pixel blocks, and the second spacer 132 is disposed between two adjacent green sub-pixel blocks.

[0063] Furthermore, referring to FIG. 6 , in one embodiment, the blue sub-pixel may also include a plurality of blue sub-pixel blocks arranged at intervals.

[0064] Specifically, since the luminous efficiency of the blue sub-pixel is low, in an embodiment of the present application, the area of ​​the blue sub-pixel is set to be larger than the areas of the red sub-pixel and the green sub-pixel to increase the brightness of the blue sub-pixel.

[0065] It can be understood that in the embodiment of the present application, the height of the second spacer 132 is less than or equal to the height of the first spacer 131. The reason for this setting is that, compared with the first spacer 131, the second spacer 132 only needs to play an auxiliary supporting role, that is, when the supporting capacity of the first spacer 131 is insufficient, it plays a supporting role when the mesh surface of the fine metal mask template 20 bends.

[0066] Specifically, the height of the first spacer 131 ranges from 0.8 microns to 2.5 microns, and the height of the second spacer 132 ranges from 0.3 microns to 1.2 microns. Optionally, the height of the first spacer 131 can be one of 0.8 microns, 1 micron, 1.5 microns, 2 microns, and 2.5 microns, and the height of the second spacer 132 can be one of 0.3 microns, 0.5 microns, 0.8 microns, 1 micron, and 1.2 microns. For example, the height of the first spacer 131 is 0.8 microns, and the height of the second spacer 132 is 0.3 microns; or, the height of the first spacer 131 is 2.5 microns, and the height of the second spacer 132 is 1.2 microns.

[0067] Furthermore, all the first spacers 131 have the same height, and all the second spacers 132 have the same height, so as to support the fine metal mask 20 disposed thereon during the manufacturing process and ensure uniform stress release.

[0068] In the embodiment of the present application, the distribution density of the second spacers 132 is less than or equal to the distribution density of the first spacers 131, so as to reduce the risk of the second pixel columns 122 and the dams 111 between the first pixel columns 121 and the second pixel columns 122 being scratched by the fine metal mask 20 without affecting the pixel aperture ratio. It should be noted that the distribution density refers to the ratio between the area occupied by the spacers on the display panel and the area of ​​the display area of ​​the display panel.

[0069] Specifically, the distribution density of the second spacer 132 ranges from 0.2% to 5%, and the distribution density of the first spacer 131 ranges from 1% to 10%. Optionally, the distribution density of the second spacer 132 may be one of 0.2%, 1%, 2%, 3%, 4%, and 5%, and the distribution density of the first spacer 131 may be one of 1%, 3%, 5%, 7%, 9%, and 10%. For example, the distribution density of the second spacer 132 is 0.2%, and the distribution density of the first spacer 131 is 1%; or, the distribution density of the second spacer 132 is 1%, and the distribution density of the first spacer 131 is 5%; or, the distribution density of the second spacer 132 is 5%, and the distribution density of the first spacer 131 is 10%.

[0070] Specifically, the orthographic projection area of ​​the second spacer 132 on the base substrate 10 is smaller than the orthographic projection area of ​​the first spacer 131 on the base substrate 10. Optionally, the orthographic projection area of ​​the first spacer 131 on the base substrate 10 is smaller than 33 micrometers by 20 micrometers, and the orthographic projection area of ​​the second spacer 132 on the base substrate 10 is smaller than 25 micrometers by 15 micrometers.

[0071] Specifically, the shape of the orthographic projection of the first spacer 131 on the base substrate 10 can also be selected from one of a rectangle, an ellipse, a circle, and a polygon. The shape of the second spacer 132 can be the same as the shape of the first spacer 131. Furthermore, the orthographic projection of the first spacer 131 on the base substrate 10 can be an axially symmetrical figure, and the orthographic projection of the second spacer 132 on the base substrate 10 can be an axially symmetrical figure. Of course, other shapes known to those skilled in the art that can achieve the same or similar effects can also be used, and the embodiments of the present application will not be described in detail here.

[0072] Specifically, the first spacer 131 and the second spacer 132 can be made of the same material and can be formed through the same photomask process. The first spacer 131 and the second spacer 132 can be made of an organic material with a certain degree of elasticity. During the evaporation process, the elastic first spacer 131 and the second spacer 132 can provide a buffering effect, reducing friction between the fine metal mask 20 and the display panel.

[0073] In the embodiment of the present application, there is no specific limit on the number of the first spacers 131 and the second spacers 132. They should be set according to actual conditions to achieve a balance between support capacity and pixel aperture ratio. However, it should be noted that the distance between the first spacer 131 and the adjacent second spacer 132 should be maintained within a preset range to prevent the distance from being too large, resulting in the second spacer 132 being unable to provide sufficient support. For example, in the embodiment of the present application, one second spacer 132 is provided for one pixel unit, and one first spacer 131 is provided between two adjacent pixel units.

[0074] Correspondingly, based on the same inventive concept, embodiments of the present application further provide a display device, comprising the display panel provided by the above embodiments. The display device can be any product or component with a display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator. The operating principle of the display device provided by the embodiments of the present application is consistent with that of the above display panel embodiments. The specific structural relationship and operating principle are described in the above display panel embodiments and will not be further described here.

[0075] Beneficial effect: In the display panel and display device provided in the embodiments of the present application, a first spacer is set between two or more adjacent sub-pixels in the first pixel column, and a second spacer is set between two or more adjacent sub-pixels in the second pixel column where the first spacer is not set, and / or between adjacent first pixel columns and second pixel columns; when the overall support of the first spacer is insufficient and the fine metal mask plate is deformed and bent, the second spacer can support the fine metal mask plate, reducing the risk of the fine metal mask plate directly contacting the surface of the pixel definition layer and scratching the pixel definition layer, thereby avoiding poor packaging of the display panel and the generation of black spots.

[0076] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0077] The above is a detailed introduction to a display panel and a display device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, wherein: include: substrate substrate; A pixel definition layer is disposed on one side of the base substrate, and the pixel definition layer includes a plurality of dams and a pixel opening located between two adjacent dams; A plurality of pixel columns, including a first pixel column and a second pixel column alternately arranged in a pixel row direction, wherein the first pixel column and the second pixel column each include a plurality of sub-pixels, and the sub-pixels are located in the pixel opening; as well as A plurality of spacers are arranged on a side of the dam away from the substrate, and the plurality of spacers include a plurality of first spacers and a plurality of second spacers; wherein the first spacers are located between two or more adjacent sub-pixels in the first pixel column; the second spacers are located between two or more adjacent sub-pixels in the second pixel column, and / or the second spacers are located between adjacent first pixel columns and second pixel columns.

2. The display panel according to claim 1, wherein: The plurality of sub-pixels of the first pixel column include a plurality of first-type sub-pixels, and the plurality of sub-pixels of the second pixel column include a plurality of second-type sub-pixels and a plurality of third-type sub-pixels that are alternately arranged; The second spacer is located on a central axis between adjacent second-type sub-pixels and third-type sub-pixels in the same second pixel column.

3. The display panel according to claim 2, wherein: The second spacer is located at the center of a graphic area surrounded by lines connecting adjacent first-type sub-pixels, second-type sub-pixels, and third-type sub-pixels.

4. The display panel according to claim 2, wherein: The first type of sub-pixels includes a blue sub-pixel, the second type of sub-pixels includes one of a red sub-pixel and a green sub-pixel, and the third type of sub-pixels includes the other of the red sub-pixel and the green sub-pixel.

5. The display panel according to claim 1, wherein: In a thickness direction of the display panel, a height of the second spacer is less than or equal to a height of the first spacer.

6. The display panel according to claim 1, wherein: The distribution density of the second spacers is less than or equal to the distribution density of the first spacers.

7. The display panel according to claim 6, wherein: The distribution density of the second spacer is in the range of 0.2%-5%, and the distribution density of the first spacer is in the range of 1%-10%.

8. The display panel according to claim 1, wherein: The sub-pixels in the second pixel column include a plurality of sub-pixel blocks arranged at intervals, and the second spacers are arranged between the plurality of sub-pixel blocks.

9. The display panel according to claim 1, wherein: An orthographic projection area of ​​the second spacer on the base substrate is smaller than an orthographic projection area of ​​the first spacer on the base substrate.

10. The display panel according to claim 1, wherein: The first spacer and the second spacer are elastic.

11. A display device, wherein: A display panel is included, wherein the display panel includes: substrate substrate; A pixel definition layer is disposed on one side of the base substrate, and the pixel definition layer includes a plurality of dams and a pixel opening located between two adjacent dams; A plurality of pixel columns, including a first pixel column and a second pixel column alternately arranged in a pixel row direction, wherein the first pixel column and the second pixel column each include a plurality of sub-pixels, and the sub-pixels are located in the pixel opening; and A plurality of spacers are arranged on a side of the dam away from the substrate, and the plurality of spacers include a plurality of first spacers and a plurality of second spacers; wherein the first spacers are located between two or more adjacent sub-pixels in the first pixel column; the second spacers are located between two or more adjacent sub-pixels in the second pixel column, and / or the second spacers are located between adjacent first pixel columns and second pixel columns.

12. The display device according to claim 11, wherein: The plurality of sub-pixels of the first pixel column include a plurality of first-type sub-pixels, and the plurality of sub-pixels of the second pixel column include a plurality of second-type sub-pixels and a plurality of third-type sub-pixels that are alternately arranged; The second spacer is located on a central axis between adjacent second-type sub-pixels and third-type sub-pixels in the same second pixel column.

13. The display device according to claim 12, wherein: The second spacer is located at the center of a graphic area surrounded by lines connecting adjacent first-type sub-pixels, second-type sub-pixels, and third-type sub-pixels.

14. The display device according to claim 12, wherein: The first type of sub-pixels includes a blue sub-pixel, the second type of sub-pixels includes one of a red sub-pixel and a green sub-pixel, and the third type of sub-pixels includes the other of the red sub-pixel and the green sub-pixel.

15. The display device according to claim 11, wherein: In a thickness direction of the display panel, a height of the second spacer is less than or equal to a height of the first spacer.

16. The display device according to claim 11, wherein: The distribution density of the second spacers is less than or equal to the distribution density of the first spacers.

17. The display device according to claim 16, wherein: The distribution density of the second spacer is in the range of 0.2%-5%, and the distribution density of the first spacer is in the range of 1%-10%.

18. The display device according to claim 11, wherein: The sub-pixels in the second pixel column include a plurality of sub-pixel blocks arranged at intervals, and the second spacers are arranged between the plurality of sub-pixel blocks.

19. The display device according to claim 11, wherein: An orthographic projection area of ​​the second spacer on the base substrate is smaller than an orthographic projection area of ​​the first spacer on the base substrate.

20. The display device according to claim 11, wherein: The first spacer and the second spacer are elastic.

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