CN217588944U - Display panel and display device - Google Patents

Abstract

The embodiment of the application provides a display panel and display device, display panel includes: a substrate; the pixel definition layer is arranged on the substrate and comprises an isolation structure and a pixel opening formed by the isolation structure in a surrounding mode; the supporting assembly is arranged on one side, away from the substrate, of the isolation structure and comprises more than two supporting columns located between every two adjacent pixel openings; and the cover plate is positioned on one side of the support assembly, which is far away from the pixel defining layer. Between two adjacent pixel openings, the supporting component includes more than two support columns, and more than two support columns can provide sufficient holding power to the apron, and then can effectively improve the yielding problem of apron, and then improve because the apron warp the influence to display panel display effect.

Description

Display panel and display device

Technical Field

The application relates to the technical field of display equipment, in particular to a display panel and a display device.

Background

Organic Light-Emitting diodes (OLEDs) are active Light-Emitting devices. Compared with the traditional Liquid Crystal Display (LCD) Display mode, the OLED Display technology does not need a backlight lamp and has the self-luminous characteristic. And can be made lighter and thinner, withstand a wider range of temperature variations than LCD display panels, and have a larger viewing angle. The OLED display panel is expected to become a next-generation flat panel display technology following the LCD, and is one of the technologies that receives the most attention among the flat panel display technologies at present.

The OLED display panel comprises a display substrate and a cover plate, wherein the display substrate is connected with the cover plate through an encapsulation structure. Be provided with the support column on the display substrate, the support column plays the effect of supporting the apron. In the prior art, the cover plate is easy to deform due to acting force of gravity and atmospheric pressure. The light of the display substrate is emitted through the cover plate, and the deformation of the cover plate can affect the display effect.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a display panel and a display device, and aims to solve the problem that a cover plate of the display panel is easy to deform.

An embodiment of a first aspect of the present application provides a display panel, including: a substrate; the pixel definition layer is arranged on the substrate and comprises an isolation structure and a pixel opening formed by the isolation structure in a surrounding mode; the support assembly is arranged on one side of the isolation structure, which is far away from the substrate, and is positioned between two adjacent pixel openings, and at least part of the support assembly comprises more than two support columns which are arranged at intervals; and the cover plate is positioned on one side of the support assembly, which is far away from the pixel defining layer.

According to an embodiment of one aspect of the present application, a first distance d1 is provided between at least two support columns adjacent to each other in the first direction in the support assembly, the support columns have an extension d2 in the first direction, and the first distance d1 satisfies 0.15d2 ≦ d1 ≦ 0.25d2.

According to one aspect of this application, in any one of the preceding embodiments, the first pitch d1 is between 2.5 μm and 3.5 μm.

According to one aspect of the present application, in a direction from the center to the edge of the display panel, an absolute value of a difference between the first distance d1 and a preset distance d in at least a partial region is gradually decreased, and the preset distance d is 0.2d2.

According to one aspect of the present application, in any one of the foregoing embodiments, the display panel includes a display area, the display area includes a first display area, a second display area and a third display area located between the first display area and the second display area, the first distance d1 between two adjacent support pillars along the first direction in the third display area in the support assembly satisfies 0.15d2 ≦ d1 ≦ 0.25d2.

According to one aspect of the present application, in a direction from the second display area to the third display area, in the support assembly in the second display area, an absolute value of a difference between a first distance d1 between two support columns adjacent to each other in the first direction and a preset distance value d gradually decreases.

According to one aspect of the present application, in a direction from the first display area to the third display area, in the support assembly in the first display area, an absolute value of a difference between a first distance d1 between two support columns adjacent to each other in the first direction and a preset distance value d gradually decreases.

According to one aspect of the present application, in any one of the embodiments, the plurality of pixel openings are arranged in an array along a first direction and a second direction, the first direction intersects the second direction, the support member is located between two adjacent pixel openings along the second direction, and the plurality of support pillars are arranged along the first direction in the support member, a spacing gap is provided between two adjacent pixel openings along the second direction, and an extension dimension of the spacing gap in the first direction is larger than an extension dimension of the spacing gap in the second direction.

According to an aspect of the present application, in any one of the embodiments described above, two pixel openings adjacent in the second direction are aligned.

According to one aspect of the present application, in any one of the embodiments described above, the pixel openings of two adjacent columns are arranged in a staggered manner in a first direction, and the column direction is a second direction.

According to one aspect of the present application, in any of the previous embodiments, the plurality of support columns are spaced apart along the first direction.

According to one aspect of the present application, in any one of the embodiments described above, at least two adjacent support columns in the support assembly have first and second opposing surfaces that are opposite to each other, and the first and second opposing surfaces are parallel to each other, or the plane of the first opposing surface intersects the plane of the second opposing surface.

According to an aspect of the present application, in any one of the embodiments, the first abutting surface and the second abutting surface are parallel to each other, an included angle between the first abutting surface and the second direction is less than or equal to 30 degrees, and the first direction is perpendicular to the second direction.

According to an aspect of the present application, in any one of the preceding embodiments, in the support assembly, two adjacent support columns are arranged in a staggered manner in the first direction.

In the supporting component, the extending distance of the dislocation part of two adjacent supporting columns in the second direction is dislocation distance d3, and the supporting column extends width in the second direction and is d4, and dislocation distance d3 satisfies: d3 is more than or equal to 0.35d4 and less than or equal to 0.45d4

According to one aspect of the present application, in any one of the preceding embodiments, the misalignment distance d3 is 4.5 μm to 5.5 μm.

According to an aspect of the present application, in any one of the embodiments described above, the support member has a polygonal shape in a front projection of the substrate.

According to one aspect of the present application, in any one of the embodiments described above, the support member has a quadrilateral shape in an orthographic projection of the substrate.

According to an aspect of the present application, in any one of the embodiments, the support posts have a trapezoidal outline in an orthographic projection of the substrate.

According to an aspect of the present disclosure, in any one of the embodiments described above, the support member has a rectangular shape in an orthographic projection of the substrate.

According to one aspect of the present application, in any of the embodiments described above, an orthogonal projection of the support post on the substrate is rectangular and has a first side and a second side connected to each other.

According to an aspect of the present application, in any one of the embodiments, extension lines of first side edges of at least two adjacent supporting columns in the supporting assembly along the first direction intersect with each other, so that at least two adjacent supporting columns are arranged in a splayed manner.

According to one aspect of the present application, in any one of the embodiments described above, the first side edges of at least two support columns within the support assembly that are adjacent along the first direction are parallel, and the first side edges intersect the first direction.

According to an aspect of the present application, in any of the embodiments described above, the first side edges of at least two support columns in the support assembly that are adjacent to each other along the first direction are parallel, and the first side edges are parallel to the first direction.

According to an aspect of the present application, in any of the previous embodiments, an angle between the first side edge and the first direction is smaller than an angle between the second side edge and the first direction, and a length of the first side edge is greater than a length of the second side edge.

According to an aspect of the present application, in any one of the previous embodiments, a ratio of the first side edge to the second side edge of the at least one support post is 1.3 to 1.9.

According to an aspect of the present application, in a direction from the center of the display panel to the edge of the display panel, an absolute value of a difference between a ratio of the first side edge and the second side edge in at least a partial region and a preset ratio is gradually decreased, and the preset ratio is 1.6.

According to an aspect of the application of any of the preceding embodiments, the length of the second side is greater than 11 μm and less than or equal to 20 μm.

According to an aspect of the present application, in any one of the preceding embodiments, the support member includes a plurality of support pillars having a first side edge with a sum of lengths of 30 μm to 36 μm.

According to one aspect of the present application, in any one of the embodiments, the display panel includes a display area, the display area includes a first display area, a second display area and a third display area located between the first display area and the second display area, the first display area and the second display area are distributed from edge to center of the display area, and a ratio of a first side edge and a second side edge of each of the support pillars in the support assembly in the third display area is 1.3 to 1.9.

According to one aspect of the present application, in a direction from the second display area to the third display area, in the support assembly in the second display area, an absolute value of a difference between a ratio of the first side edge and the second side edge of the support column and a preset ratio is gradually decreased.

According to one aspect of the present application, in a direction from the first display area to the third display area, in the support assembly in the first display area, an absolute value of a difference between a ratio of the first side edge and the second side edge of the support column and a preset ratio is gradually decreased.

According to an aspect of the present application, in any one of the previous embodiments, a distribution density of the support pillars in the third display area is greater than a distribution density of the support pillars in the first display area and/or the second display area.

According to one aspect of the present application, in any one of the foregoing embodiments, at least two adjacent support columns in the support assembly have a concave groove formed on a surface facing the other support column, and a convex portion formed on the other support column and located in the concave groove.

According to one aspect of the present application, in any of the embodiments described above, at least a portion of the support members further comprise a support column, wherein the total size of the support members including two or more support columns spaced apart from each other is the same as the total size of the support members including one support column.

Embodiments of the second aspect of the present application further provide a display device, where the display device includes the display panel of any one of the embodiments of the first aspect.

In the display panel of the embodiment of the application, the display panel includes a substrate, a pixel defining layer, a supporting member, and a cover plate. The pixel definition layer includes an isolation structure and a pixel opening for receiving a light emitting material to realize light emission of the display panel. The support assembly is supported between the isolation structure and the cover plate and is used for providing a supporting force to the cover plate. Between two adjacent pixel openings, the supporting component includes more than two support columns, and more than two support columns can provide sufficient holding power to the apron, and then can effectively improve the yielding problem of apron, and then improve because the apron warp the influence to display panel display effect.

Drawings

Other features, objects, and advantages of the present application will become apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings, in which like or similar reference characters identify the same or similar features.

Fig. 1 is a top view of a display panel provided in an embodiment of a first aspect of the present application;

FIG. 2 is an enlarged, fragmentary, schematic view of FIG. 1 at I in an example;

FIG. 3 isbase:Sub>A cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a schematic view of a portion of FIG. 1 at I in an enlarged scale in accordance with another example;

FIG. 5 is a schematic view of a portion of the structure at I in FIG. 1 according to still another embodiment;

FIG. 6 is a schematic view of a further example of a partial enlarged structure at I in FIG. 1;

FIG. 7 is a schematic view of a portion of an enlarged structure at I in FIG. 1 in accordance with still another example;

FIG. 8 is a schematic view of a portion of the enlarged structure at I in FIG. 1 in yet another example;

FIG. 9 is a schematic view of a portion of an enlarged structure at I in FIG. 1 in accordance with still another example;

fig. 10 is a partially enlarged schematic view of fig. 1 at I in still another example.

Description of reference numerals:

10. a display panel;

100. a substrate; 110. a pixel electrode;

200. a pixel defining layer; 210. an isolation structure; 220. a pixel opening; 221. a first pixel opening; 222. a second pixel opening; 223. a third pixel opening;

300. a support assembly; 310. a support pillar; 310a, a misaligned portion; 310b, an overlap portion; 311. a first mating surface; 312. a second butting face; 313. a first side edge; 314. a second side edge; 315. a groove; 316. a boss portion;

400. a cover plate;

AA1, a first display area; AA2, a second display area; AA3, a third display area;

x, the row direction; y, the column direction.

Detailed Description

Features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order to avoid unnecessarily obscuring the present application; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the description of the present application, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicate an orientation or positional relationship that is merely for convenience in describing the application and to simplify the description, and do not indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and therefore should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The directional terms appearing in the following description are directions shown in the drawings and do not limit the specific structure of the embodiments of the present application. In the description of the present application, it should also be noted that, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected. The specific meaning of the above terms in this application can be understood as appropriate by one of ordinary skill in the art.

The OLED display panel comprises a display substrate and a cover plate, wherein the display substrate is connected with the cover plate through an edge packaging structure. In addition, in order to prevent the middle parts of the display substrate and the cover plate from contacting with each other, a support column with a certain extending height is arranged on the display substrate, so that the cover plate is supported, and the cover plate is prevented from damaging the light-emitting device.

In the prior art, a plurality of support columns arranged on the display substrate are used for supporting the cover plate, but the display panel can have a Newton ring phenomenon after being used for a period of time, namely, a circle of abnormal display annular region appears in a region of the display panel close to the edge, the display effect of the display panel is seriously influenced, and the service life of the display panel is influenced.

The inventors found through research that this is due to display abnormality caused by deformation of the cover plate after a period of use. After the display substrate is used for a period of time, the cover plate generates deformation similar to a bathtub curve under the action of gravity and atmospheric pressure, and the cover plate can be sunken towards the display substrate to form a curved surface with a certain curvature radius. When light irradiates the display substrate from the cover plate, the optical path difference of different light beams in a microcavity formed between the cover plate and the display substrate is different, and reflected light generated on the upper surface and the lower surface of the cover plate and the display substrate interferes with each other, so that a Newton ring phenomenon appears on the display panel, and the display effect of a product is influenced.

The inventor further studies and finds that the Newton's ring phenomenon occurs because the supporting force of the supporting column is insufficient and the deformation resistance is poor. Resulting in deformation of the cover plate due to deformation of a portion of the support post body. Furthermore, the inventor finds that a supporting column with a size matched with the gap between the two adjacent pixel openings is usually arranged between the two adjacent pixel openings, and the supporting column is easy to collapse and deform after being formed due to the limitation of the preparation process in the preparation process, so that the difference between the actual shape and the designed shape of the supporting column is large, for example, the supporting column is designed to be a cylindrical structure, and the final actual shape is a table-shaped structure after being influenced by the process, so that the supporting force of the supporting column is insufficient, and the supporting column is easy to deform under the supporting force of the supporting column.

The present application is proposed to solve the above-mentioned technical problems. For better understanding of the present application, the display panel and the display device according to the embodiment of the present application are described in detail below with reference to fig. 1 to 10.

Referring to fig. 1 to fig. 3, fig. 1 is a top view of a display panel 1010 according to an embodiment of the first aspect of the present disclosure. Fig. 2 isbase:Sub>A partially enlarged structural view at I in fig. 1, and fig. 3 isbase:Sub>A sectional view atbase:Sub>A-base:Sub>A in fig. 2.

According to the display panel 10 provided in the embodiment of the first aspect of the present application, the display panel 10 includes a substrate 100, a pixel defining layer 200, a support member 300, and a cover plate 400. The pixel definition layer 200 is disposed on the substrate 100, and the pixel definition layer 200 includes an isolation structure 210 and a pixel opening 220 surrounded by the isolation structure 210; the support assembly 300 is disposed on a side of the isolation structure 210 facing away from the substrate 100 and located between at least a portion of two adjacent pixel openings 220, where at least a portion of the support assembly 300 includes more than two support pillars 310; the cover plate 400 is located on a side of the support member 300 facing away from the pixel defining layer 200.

In the display panel 10 according to the embodiment of the present disclosure, the display panel 10 includes a substrate 100, a pixel defining layer 200, a support member 300, and a cover plate 400. The pixel defining layer 200 includes an isolation structure 210 and a pixel opening 220, and the pixel opening 220 is used for accommodating a light emitting material to realize light emission of the display panel 10. The support assembly 300 is supported between the isolation structure 210 and the cap plate 400 and serves to provide a supporting force to the cap plate 400. Between at least two adjacent pixel openings 220, the support assembly 300 includes two or more support columns 310, the difference between the actual shape and the design shape of each support column 310 is small, and it can be ensured that a sufficient contact area exists between each support column 310 and the cover plate 400, so that the two or more support columns 310 can provide sufficient support force for the cover plate 400, and further the problem of easy deformation of the cover plate 400 can be effectively improved, and further the influence of the deformation of the cover plate 400 on the display effect of the display panel 10 is improved.

In addition, compared with the scheme that one supporting column 310 is arranged between at least two adjacent pixel openings 220, the present application is equivalent to dividing the supporting column 310 between two adjacent pixel openings 220 into a plurality of arrangements, so that the gap distance between the adjacent supporting columns 310 is smaller. When the support columns 310 collapse and deform after molding, because the gap distance is small, two adjacent support columns 310 can be limited, so that the collapse and deformation of the support columns 310 are reduced, the difference between the actual shape and the designed shape of the support columns 310 is reduced, and the support columns 310 can provide enough supporting force for the cover plate 400.

The number of the support columns 310 in the support assembly 300 may be two, or, referring to fig. 4, the number of the support columns 310 in the support assembly 300 may also be three. In other embodiments, the number of support columns 310 in the support assembly 300 may be more.

In the following, the number of the support columns 310 in the support assembly 300 between two adjacent pixel openings 220 is 1, 2, and 3, respectively, and when the number of the support columns 310 in the support assembly 300 is 2 and 3, the total size of the support assembly 300 is the same as the total size of the support assembly 300 including one support column 310, and the total deformation amount of the support column 310 is obtained as follows:

the total amount of deformation of the support member 300 refers to the total amount of high deformation of the support member 300, i.e., the amount of deformation of the support member 300 in the thickness direction of the display panel 10. As can be seen from the above table, when the support assembly 300 includes more than two support columns 310, the deformation amount of the support columns 310 is significantly reduced. Therefore, when the support assembly 300 includes more than two support columns 310, the deformation of the support columns 310 can be effectively improved, the supporting force of the support assembly 300 can be increased, and the deformation of the cover plate 400 can be improved.

Alternatively, when the support assembly 300 includes more than two support columns 310, the more than two support columns 310 may be the same size or different sizes. As shown in fig. 2, the support assembly 300 includes two or more support posts 310 that are the same size. Alternatively, as shown in fig. 5, the support assembly 300 includes two or more support columns 310 having different structures.

The substrate 100 may be disposed in various ways, and the substrate 100 may include a substrate and an array substrate, the array substrate may include thin film transistors and signal lines, and the signal lines may include signal lines such as data lines, scan lines, and power lines.

Optionally, a pixel electrode 110 is further disposed on the substrate 100, and an orthogonal projection of the pixel electrode 110 on the substrate 100 and an orthogonal projection of the pixel opening 220 on the substrate 100 are at least partially overlapped, so that the pixel electrode 110 can drive the light-emitting material in the pixel opening 220 to emit light.

Alternatively, a light emitting unit including a light emitting material and used for light emitting display may be disposed in the pixel opening 220. Optionally, a common electrode may be further disposed on a side of the supporting member facing away from the pixel defining layer 200, and the common electrode is matched with the pixel electrode 110 and used for driving the light emitting unit to emit light.

Alternatively, the light emitting units include a red light emitting unit for emitting red light, a blue light emitting unit for emitting blue light, and a green light emitting unit for emitting green light. The pixel opening 220 includes a first pixel opening 221 for accommodating a red light emitting unit, a second pixel opening 222 for accommodating a blue light emitting unit, and a third pixel opening 223 for accommodating a green light emitting unit. In other embodiments, the light emitting unit may further include a light emitting unit for emitting other color light, and the pixel opening 220 may also include a light emitting unit for receiving other color light.

In some alternative embodiments, with continued reference to fig. 2 to fig. 5, at least two adjacent supporting pillars 310 in the supporting assembly 300 along the first direction X have a first distance d1 therebetween, an extension of the supporting pillars 310 in the first direction is d2, and the first distance d1 satisfies 0.15d2 ≦ d1 ≦ 0.25d2.

In the alternative embodiments, d1 is more than or equal to 0.15d2, which can improve the over-difficult preparation of the support column 310 caused by too small d 1; d1 is less than or equal to 0.25d2, the limitation deficiency between two adjacent support columns 310 caused by too large d1 can be improved, and the difference between the actual shape and the design shape of the support columns 310 caused by too large deformation of the support columns 310 is too large, so that the support columns 310 cannot provide enough supporting force for the cover plate 400.

Where the support assembly 300 includes a plurality of support columns 310, d2 may be the extension of any support column 310 in the support assembly 300 in the first direction. Optionally, d2 is an extension of any one of the two support pillars 310 located on both sides of the first distance d1 in the first direction. Optionally, d2 is an average extension of the two support columns 310 in the first direction on two sides of the first distance d1 in the first direction.

Assuming that when the extension size of the support pillars 310 in the first direction is 16 μm, the sizes of two adjacent support pillars 310 in the first direction are equal, and the first pitches d1 between two adjacent support pillars 310 in the first direction are set to be 1 μm, 2 μm, 3 μm, 4 μm, and 5 μm, respectively, the deformation amounts of the cap plate 400 are obtained as shown in the following table:

	first pitch	Amount of deformation of cover plate
			Example 4	1μm	2.349nm
Example 5	2μm	2.342nm
			Example 6	3μm	1.270nm
Example 7	4μm	2.352nm
			Example 8	5μm	2.342nm

As can be seen from the above table, when the first pitch d1 is set to 1 μm, 2 μm, 4 μm, and 5 μm, the deformation amount of the cover plate 400 is large. When the value of the first distance d1 is 3 μm, i.e., when d1 is greater than or equal to 0.15d2 and less than or equal to 0.25d2, the deformation of the cover plate 400 is the smallest.

Optionally, the first distance d1 is 2.5 μm to 3.5 μm. It is possible to improve the deformation of the cap plate 400 caused by insufficient supporting force of the supporting columns 310 due to the excessively large or small first distance d 1.

Optionally, the number of the support assemblies 300 is more than two, and the distance between two adjacent support columns 310 in each support assembly 300 along the first direction satisfies that d1 is greater than or equal to 0.15d2 and less than or equal to 0.25d2.

Alternatively, in other embodiments, the absolute value of the difference between the first distance d1 and the preset distance d in at least a partial region decreases gradually along the direction from the center to the edge of the display panel 10, and the preset distance d is 0.2d2.

In these alternative embodiments, the closer the first distance d1 is to the preset distance d along the direction from the center to the edge of the display panel 10, the preset distance d is 0.2d2, and when the first distance d1 is equal to the preset distance d, the supporting body 310 has good supporting performance. Therefore, when the first distance d1 is equal to the preset distance value d, the value of the first distance d1 is an ideal value, and the supporting effect of the supporting column 310 is the best. That is, along the direction from the center to the edge of the display panel 10, the closer the value of the first distance d1 in at least a partial region is to the ideal value, the stronger the supporting capability of the supporting column 310 is, the more difficult the cover plate 400 is to deform in the edge region, and the newton ring phenomenon caused by the deformation of the cover plate 400 in the edge region can be effectively improved.

Optionally, with reference to fig. 1, the display panel 10 has a display area, and the display area includes a first display area AA1, a second display area AA2 and a third display area AA3 located between the first display area AA1 and the second display area AA 2.

The first display area AA1 is adjacent to an outer edge of the display area, that is, the outer edge of the first display area AA1 is an outer edge of the display area, and the first display area AA1 extends from the outer edge of the display area to a central portion of the display area.

The sizes of the first display area AA1, the second display area AA2 and the third display area AA3 are not limited, and the sizes of the first display area AA1, the second display area AA2 and the third display area AA3 may be determined according to the newton ring phenomenon of the same type of display panel 10 having the same display area size. The newton ring phenomenon generally occurs at a distance from the edge of the display area, i.e., the newton ring phenomenon generally occurs in the third display area AA3.

In some alternative embodiments, the first spacing d1 between two support columns 310 adjacent in the first direction in the support assembly 300 in the third display area AA3 each satisfies 0.15d2 ≦ d1 ≦ 0.25d2. So as to improve the supporting effect of the support pillars 310 in the third display area AA3 and to better improve the newton ring phenomenon caused by the deformation of the cover plate 400.

Optionally, values of the plurality of first intervals d1 in the third display area AA3 may be equal, or the preset interval value d is equal to 0.18d2. In the third display area AA3, which is equally spaced from both the first display area AA1 and the second display area AA2, i.e., in the middle area of the third display area AA3, the first interval d1 satisfies d1= d =0.18d2. So as to further improve the supporting capability of the supporting pillars 310 in the middle area of the third display area AA3, and better improve the newton ring phenomenon caused by the deformation of the cover plate 400.

Optionally, in the second display area AA2, in a direction from the second display area AA2 to the third display area AA3, an absolute value of a difference between the first distance d1 and a preset distance value d is gradually decreased, and the preset distance value d satisfies a condition that d is greater than or equal to 0.15d2 and less than or equal to 0.25d2. Therefore, the closer to the third display area AA3, the closer to the ideal value the first distance d1 is, the stronger the supporting ability of the supporting column 310 is, and the better the newton's ring phenomenon due to the deformation of the cover 400 can be.

Optionally, in the first display area AA1, in a direction from the first display area AA1 to the third display area AA3, an absolute value of a difference between the first distance d1 and a preset distance value d is gradually decreased, and the preset distance value d satisfies a condition that d is greater than or equal to 0.15d2 and less than or equal to 0.25d2. Therefore, the closer to the third display area AA3, the closer to the ideal value the first distance d1 is, the stronger the supporting ability of the supporting column 310 is, and the better the newton's ring phenomenon due to the deformation of the cover 400 can be.

In some alternative embodiments, as shown in fig. 2 to 5, the pixel openings 220 are arranged in an array along the first direction X and the second direction Y, the support assembly 300 is located between two adjacent pixel openings 220 in the second direction Y, and the plurality of support columns 310 in the support assembly 300 are arranged at intervals along the first direction X. Two adjacent pixel openings 220 along the second direction Y have a spacing gap therebetween, and the extension of the spacing gap in the first direction X is greater than that in the second direction Y. It should be noted that the first direction X may refer to a row direction in which the pixel openings are arranged, and the second direction Y may refer to a column direction in which the pixel openings are arranged, of course, the first direction X may also be a column direction in which the pixel openings are arranged, and the second direction Y may also be a row direction in which the pixel openings are arranged, which is not limited specifically.

In these alternative embodiments, the extension of the spacing gap between two adjacent pixel openings 220 in the second direction Y along the first direction X is greater than the extension thereof in the second direction Y. When the support assembly 300 is located between two adjacent pixel openings 220 in the second direction Y and the plurality of support columns 310 in the support assembly 300 are arranged at intervals along the first direction X, the distribution of the support columns 310 and the pixel openings 220 can be optimized, so that the plurality of support columns 310 can be arranged between two adjacent pixel openings 220, and the support effect of the support columns 310 is further improved.

Alternatively, two pixel openings 220 adjacent in the second direction Y are aligned, so that the shape of the spacing gap is more regular. Alternatively, the pixel openings 220 have the same extension in the first direction X.

Optionally, the pixel openings 220 of two adjacent columns are arranged in a staggered manner in the first direction X, and the column direction is the second direction Y. That is, the pixel opening 220 of the previous column is correspondingly located between two adjacent pixel openings 220 of the next column. On one hand, when the light emitting unit is disposed in the pixel opening 220, the display stripe phenomenon of the display panel 10 can be improved. On the other hand for the supporting component 300 of adjacent two rows can misplace, make the distribution of a plurality of supporting components 300 more even, further improve the supporting capacity of supporting component 300 to apron 400, make the atress of apron 400 more balanced and non-deformable.

When the plurality of support columns 310 in the support assembly 300 are distributed along the first direction X, the plurality of support columns 310 in the support assembly 300 are spaced apart or engaged with each other along the first direction X. The plurality of support columns 310 in the support assembly 300 are spaced along the first direction X, which means that the plurality of support columns 310 in the support assembly 300 are completely separated and do not overlap in the first direction X.

As shown in fig. 2 to 5, in some alternative embodiments, a plurality of support columns 310 are spaced along the first direction X in the support assembly 300.

In these alternative embodiments, the first direction X is the above-mentioned first direction, and a first gap d1 is formed between two adjacent supporting columns 310, so that the supporting columns 310 have a simple structure and are convenient to manufacture.

In some alternative embodiments, as shown in fig. 2 to 5, at least two adjacent support columns 310 in the support assembly 300 have opposite first and second abutting surfaces 311 and 312, and the mutual positional relationship between the first and second abutting surfaces 311 and 312 can be set in various ways.

For example, the first and second mating surfaces 311 and 312 are parallel to each other. This is equivalent to dividing the support assembly 300 into a plurality of support posts 310 along a reference plane parallel to the first and second mating surfaces 311 and 312, and the plurality of support posts 310 are distributed at intervals. When the first and second mating surfaces 311 and 312 are parallel to each other, as shown in fig. 2 to 5, the first and second mating surfaces 311 and 312 may be disposed parallel to the second direction Y. Alternatively, as shown in fig. 6 and 7, the first and second mating surfaces 311 and 312 may intersect the second direction Y. When the first abutting surface 311 and the second abutting surface 312 intersect with the second direction Y, an included angle between the first abutting surface 311 and the second abutting surface 312 and the second direction Y is less than or equal to 30 degrees, so as to prevent the first abutting surface 311 and the second abutting surface 312 from having an excessively large included angle with the second direction Y, and prevent the support pillar 310 from having an excessively small extension in the second direction Y, which is prone to large-area collapse and deformation during the manufacturing process. The first direction X and the second direction Y are perpendicular.

Alternatively, in other alternative embodiments, as shown in fig. 8, the plane of the first abutting surface 311 and the plane of the second abutting surface 312 may intersect, so as to improve the distribution uniformity of the plurality of supporting pillars 310 in the supporting assembly 300.

In some alternative embodiments, as shown in fig. 9, when the plurality of support columns 310 in the support assembly 300 are spaced along the first direction X, two adjacent support columns 310 are arranged in a staggered manner in the first direction X.

In these alternative embodiments, the two adjacent support columns 310 are not aligned in the first direction X, which can improve the uniformity of distribution of the plurality of support columns 310 in the first direction X in the support assembly 300, improve the uniformity of the stress applied to the cover plate 400, and better improve the deformation of the cover plate 400.

The two adjacent support columns 310 are arranged in a staggered manner in the first direction X, that is: a portion of two adjacent support columns 310 overlap in the first direction X, and another portion does not overlap in the first direction X. For example, a portion where two adjacent support columns 310 overlap in the first direction X is referred to as an overlapping portion 310b, and a portion where at least one of the support columns is staggered from the other support column in the first direction X is referred to as a misaligned portion 310a.

In the same support assembly 300, the offset portions 310a of two adjacent support columns 310 extend in the second direction Y by an offset distance d3. The extending width of the single supporting column 310 in the second direction Y is d4, and the offset distance d3 satisfies: d3 is more than or equal to 0.35d4 and less than or equal to 0.45d4. The overlapping portions 310b of two adjacent support columns 310 extend a distance d5 in the second direction Y, then d3= d4-d5.

In these alternative embodiments, that is, when the offset distance d3 is 35% to 45% of the extension width d4, it is able to avoid that the offset distance d3 is too small, which may cause the overlapping portion 310b of two adjacent supporting pillars 310 to be too small to achieve the purpose of more uniform distribution of the plurality of supporting pillars 310 in the supporting assembly 300 in the first direction X, and further affect the supporting capability of the whole supporting assembly 300. The problem that the supporting capability of the whole supporting assembly 300 is affected by the overlarge deformation of the supporting columns 310 in the preparation process due to the fact that the limiting effect of the first gap d1 cannot be well utilized by the two adjacent supporting columns 310 due to the overlarge dislocation distance d3 can also be avoided.

Assuming that the extension width d4 of the support columns 310 in the second direction Y is 12 μm, the offset distances d3 of the offset portions 310a of two adjacent support columns 310 in the support assembly 300 in the second direction Y are set to be 3 μm, 4 μm, 5 μm, 6 μm, 7 μm and 9 μm, respectively, and the deformation amounts of the cover plate 400 are obtained as shown in the following table:

	offset distance	Amount of deformation of cover plate
			Example 9	3μm	2.3213nm
Example 10	4μm	2.22885nm
			Example 11	5μm	1.418nm
Example 12	6μm	2.2818nm
			Examples13	7μm	2.1362nm
Example 14	9μm	2.2795nm

As can be seen from the above table, when the misalignment distance d3 is set to 3 μm, 4 μm, 6 μm, 7 μm, and 9 μm, the deformation amount of the cover 400 is large. When the offset distance d3 is 5 μm, i.e., d3 is greater than or equal to 0.35d4 and less than or equal to 0.45d4, the deformation of the cover plate 400 is the smallest. Therefore, the supporting capability of the supporting member 300 can be improved by appropriately setting the offset distance d3, and the changed deformation amount can be improved.

Optionally, the dislocation distance d3 is 4.5 μm to 5.5 μm. When the offset distance d3 is within the above value range, it is possible to avoid that the support capability of the support assembly 300 is affected by too small or too large offset distance d3.

The support posts 310 may be arranged in various shapes, and the orthographic projection of the support posts 310 on the substrate 100 has a polygonal outer contour. For example, the orthographic projection of the support column 310 on the substrate 100 has a triangular, quadrangular, pentagonal, etc. outline. For example, as shown in fig. 6, the orthographic projection of the support column 310 on the substrate 100 has a trapezoidal outline. For example, when the support assembly 300 includes two support columns 310, an orthographic projection profile of the support columns 310 on the substrate 100 may be a right trapezoid, and the first and second abutting surfaces 311 and 312 may be parallel to each other and intersect the second direction Y. Corresponding to cutting the support assembly 300 into two support posts 310 in a direction parallel to the first mating surface 311.

Optionally, in other embodiments, the support assembly 300 may further include more than three support columns 310, where the support columns 310 located at two sides of the first direction X among the more than three support columns 310 may be in a right trapezoid shape, and the support column 310 located in the middle may be in a non-right trapezoid shape, so that an orthographic projection outer contour of the support assembly 300 on the substrate 100 is generally rectangular, and a distribution area of the support columns 310 may be increased.

In other embodiments, as shown in fig. 2 to 5, the orthographic projection of the supporting column 310 on the substrate 100 may be rectangular, and the orthographic projection of the supporting column 310 on the substrate 100 includes a first side 313 and a second side 314 connected to each other. In these alternative embodiments, the support posts 310 are more regular in shape, making the fabrication of the support posts 310 simpler.

When the orthographic projection of the supporting pillars 310 on the substrate 100 is rectangular, the supporting pillars 310 are distributed in various ways, and in some embodiments, as shown in fig. 2 to 5, the first sides 313 of at least two supporting pillars 310 adjacent to each other along the first direction X in the supporting assembly 300 are parallel, and the first sides 313 are parallel to the first direction X.

In these alternative embodiments, two adjacent supporting columns 310 are disposed at intervals along the first direction X, the first side 313 of each supporting column 310 is parallel to the first direction X, and the supporting columns 310 are located between the pixel openings adjacent to each other along the second direction Y, so that the same supporting column 310 has the same distance with the pixel openings 220 located on both sides of the second direction Y, and the same supporting column 310 has a longer distance with the pixel openings 220 located on both sides of the second direction Y. On one hand, the preparation of the supporting pillars 310 is facilitated, and on the other hand, when the supporting pillars 310 collapse and deform during the preparation process, the material of the supporting pillars 310 can be prevented from flowing into the pixel openings 220 to affect the light emission of the display panel 10.

In other embodiments, as shown in fig. 7, the first side edges 313 of at least two support columns 310 adjacent to each other along the first direction X in the support assembly 300 are parallel, and the first side edges 313 intersect with the first direction X.

In these alternative embodiments, the first side edge 313 of the support column 310 in the support assembly 300 is rotated by a preset angle relative to the first direction X, and the rotation directions of two adjacent support columns 310 are the same, so that the two adjacent support columns 310 are arranged in parallel, and the stress of the cover plate 400 is more balanced.

In still other embodiments, as shown in fig. 8, the extension lines of the first side edges 313 of at least two adjacent supporting columns 310 along the first direction X in the supporting assembly 300 intersect, so that at least two adjacent supporting columns 310 are arranged in a figure-of-eight manner.

In these alternative embodiments, the first side edge 313 of the supporting column 310 in the supporting assembly 300 rotates by a preset angle relative to the first direction X, and the rotating directions of two adjacent supporting columns 310 are opposite, so that the two adjacent supporting columns 310 are arranged in a splayed shape, and the stress of the cover plate 400 is more balanced.

The lengths of the first side 313 and the second side 314 can be arranged in various ways, and in some alternative embodiments, as shown in fig. 7, the included angle between the first side 313 and the first direction X is smaller than the included angle between the second side 314 and the first direction X, and the length of the first side 313 is greater than the length of the second side 314.

The gap between two adjacent pixel openings 220 in the second direction Y has a larger extension in the first direction X than in the second direction Y. The length of the first side 313 is greater than that of the second side 314, so that the support columns 310 can have a sufficient size in the first direction X, and further, the size of a single support column 310 can be sufficiently large, so that the support capability of the support assembly 300 can be improved.

The included angle between the first side 313 and the first direction X may be 0, and in this case, the first side 313 is disposed parallel to the first direction X. Alternatively, the angle between the first side edge 313 and the first direction X is smaller than 90 degrees.

In some alternative embodiments, the ratio of the first side edge 313 to the second side edge 314 of at least one of the support posts 310 is 1.3 to 1.9.

In these alternative embodiments, when the predetermined ratio of the first side edge 313 to the second side edge 314 is within the above range, on one hand, a sufficient size can be ensured, and the supporting column 310 can have a sufficient supporting force.

The following table is obtained by changing four variables of the density of the supporting columns 310, the length of the first side edge 313, the length of the second side edge 314, and the height of the supporting columns 310, and detecting the newton ring phenomenon of the display panel 10:

as can be seen from examples 16 to 20 in the above table, in the case where the height of the supporting pillars 310 is constant, even if the distribution density of the supporting pillars 310 is increased, when the ratio of the first side edge 313 to the second side edge 314 is 1.9, the newton ring phenomenon occurs. And as can be seen from the comparison between the embodiment 22 and the embodiment 24, under the condition that the height and the distribution density of the supporting columns 310 are unchanged, when the ratio of the first side edge 313 to the second side edge 314 is greater than 1.9, the length of the first side edge 313 of the supporting column 310 is continuously increased, and when the ratio of the first side edge 313 to the second side edge 314 is greater, the newton ring phenomenon is more serious.

As can be seen from embodiment 26, when the ratio of the first side edge 313 to the second side edge 314 is less than 1.3, newton's rings are likely to appear on the display panel 10. In addition, as can be seen from examples 21 to 26, when the side length of the second side edge 314 is equal to 11 μm, newton rings easily occur. Therefore, the side length of the second side 314 greater than 11 μm can improve the Newton's ring problem.

Assuming that the length of the first side 313 of the support pillar 310 is 16 μm, and the lengths of the second side 314 of the support pillar 310 are set to 12 μm, 14 μm and 16 μm, respectively, the deformation amounts of the cap plate 400 are obtained as shown in the following table:

assuming that the length of the second side 314 of the support columns 310 is 12 μm, the lengths of the first sides 313 of the support columns 310 are set to 16 μm, 17 μm, and 18 μm, respectively, and the deformation amounts of the cap plate 400 are obtained as shown in the following table:

	length of the first side edge	Amount of deformation of cover plate	Improvement ratio
				Example 30	16μm	2.3466nm	100％
Example 31	17μm	2.2438nm	104.6％
				Example 32	18μm	2.1371nm	109.8％

As can be seen from the above two tables, when the length of the first side 313 is 16 μm and the length of the second side 314 is close to the length of the first side 313, the deformation amount of the cover 400 is gradually reduced and the deformation rate of the cover 400 is gradually increased. When the length of the second side 314 is 12 μm and the length of the first side 313 is gradually increased, the deformation amount of the cap plate 400 is gradually increased.

It can be seen from the above two tables that when the length of the second side 314 and the length of the first side 313 are increased by the same size, the deformation of the cover 400 is obviously increased by increasing the length of the second side 314. Therefore, when the length of the second side edge 314 is within a proper range, that is, the length of the second side edge 314 is greater than 11 μm, the supporting ability of the supporting columns 310 can be better improved, and the deformation of the cover plate 400 can be better improved.

Optionally, the length of the second side edge 314 is greater than 11 μm and less than or equal to 20 μm, which can better improve the newton ring phenomenon caused by the deformation of the cover plate 400.

Optionally, the length of the first side 313 of the supporting pillar 310 may be 15 μm to 18 μm. Alternatively, the sum of the lengths of the first sides 313 of the plurality of support columns 310 in the support assembly 300 may be 30 μm to 36 μm. When the size of the supporting pillar 310 is within the above range, it is possible to ensure both sufficient supporting force of the supporting pillar 310 and sufficient space between the supporting pillar 310 and the pixel opening 220.

In the display panel 10, the ratio of the first side 313 to the second side 314 of the plurality of supporting columns 310 may be set in various ways, for example, the ratio of the first side 313 to the second side 314 of the plurality of supporting columns 310 is equal.

Alternatively, in other alternative embodiments, the absolute value of the difference between the ratio of the first side edge 313 and the second side edge 314 and a preset ratio decreases gradually from the center of the display panel 10 to the edge thereof, and the preset ratio is 1.6. That is, the closer to the edge region, the closer the ratio of the first side edge 313 to the second side edge 314 is to the ideal value, the stronger the supporting ability of the supporting column 310 is, and the better the Newton's ring effect can be improved.

Optionally, when the display panel 10 includes the first display area AA1, the second display area AA2, and the third display area AA3, the ratio of the first side edge 313 and the second side edge 314 of the support pillar 310 in the third display area AA3 is 1.3 to 1.9. So that the supporting pillars 310 in the third display area AA3 have sufficient supporting force to better improve the newton ring phenomenon.

Optionally, in the first display area AA1, along the direction from the first display area AA1 to the third display area AA3, the absolute value of the difference between the ratio of the first side edge 313 to the second side edge 314 and the preset ratio is gradually decreased, and the preset ratio is 1.6. That is, in the first display area AA1, the closer to the third display area AA3, the stronger the supporting capability of the supporting column 310 is, the better the newton ring phenomenon can be improved.

Optionally, in the second display area AA2, along the direction from the second display area AA2 to the third display area AA3, the absolute value of the difference between the ratio of the first side edge 313 and the second side edge 314 and the preset ratio is gradually decreased. That is, in the second display area AA2, the closer to the third display area AA3, the stronger the supporting capability of the supporting column 310 is, the better the newton ring phenomenon can be improved.

In some embodiments, the distribution density of the support columns 310 in the third display area AA3 is greater than the distribution density of the support columns 310 in the first display area AA1 and/or the second display area AA 2.

The distribution density of the supporting pillars 310 may be a ratio of the number of the supporting pillars 310 distributed to the area of the display region where the supporting pillars 310 are located. The distribution density of the supporting pillars 310 may also be a ratio of the distribution area of the supporting pillars 310 to the area of the display region where the supporting pillars are located.

When the distribution density of the support pillars 310 in the third display area AA3 is greater than the distribution density of the support pillars 310 in the first display area AA1, the support force of the support pillars 310 in the third display area AA3 is stronger, which can improve the newton ring phenomenon.

When the distribution density of the support pillars 310 in the third display area AA3 is greater than the distribution density of the support pillars 310 in the second display area AA2, the support force of the support pillars 310 in the third display area AA3 is stronger, which can improve the newton ring phenomenon.

In other embodiments, as shown in fig. 10, in at least two adjacent support columns 310 in the support assembly 300, a groove 315 is formed in a concave manner on a surface of one of the support columns facing the other support column, a protrusion 316 is formed in a convex manner on the other support column, and the protrusion 316 is located in the groove 315.

In these alternative embodiments, the groove 315 of one support column 310 can provide a stop for the protrusion 316 of the other support column 310, thereby reducing the collapse deformation of the protrusion 316 during the manufacturing process, further reducing the difference between the actual shape and the design shape of the support column 310, improving the support capability of the support column 310, and better improving the deformation change.

In these alternative embodiments, at least some of the support assemblies further comprise a support column, wherein the total size of the support assembly comprising two or more support columns spaced apart is the same as the total size of the support assembly comprising a support column.

Embodiments of the second aspect of the present application further provide a display device, which includes the display panel 10 of any one of the embodiments of the first aspect. Since the display device of the embodiment of the present application includes the display panel 10, the display device of the embodiment of the present application has the beneficial effects of the display panel 10, and details are not repeated herein.

The display device in the embodiment of the present application includes, but is not limited to, a mobile phone, a Personal Digital Assistant (PDA), a tablet computer, an electronic book, a television, a door lock, a smart phone, a console, and other devices having a display function.

While the application has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims (35)

1. A display panel, comprising:

a substrate;

the pixel definition layer is arranged on the substrate and comprises an isolation structure and a pixel opening formed by the isolation structure in a surrounding mode;

the support assembly is arranged on one side, away from the substrate, of the isolation structure and located between at least part of two adjacent pixel openings, and at least part of the support assembly comprises more than two support columns arranged at intervals;

and the cover plate is positioned on one side of the support component, which is far away from the pixel defining layer.

2. The display panel according to claim 1, wherein at least two of the support columns in the support assembly adjacent to each other along a first direction have a first spacing d1 therebetween, the support columns have an extension d2 in the first direction, and the first spacing d1 satisfies 0.15d2 ≦ d1 ≦ 0.25d2.

3. The display panel according to claim 2, wherein the first pitch d1 is 2.5 μm to 3.5 μm.

4. The display panel according to claim 2, wherein the absolute value of the difference between the first distance d1 and a preset distance d is gradually decreased in at least a partial region along the direction from the center to the edge of the display panel, and the preset distance d is 0.2d2.

5. The display panel according to claim 2, wherein the display panel comprises a display area, the display area comprises a first display area, a second display area and a third display area, the first display area and the second display area are distributed from edge to center of the display area, the third display area is located between the first display area and the second display area, and each first distance d1 between two adjacent support pillars along the first direction in the support assembly in the third display area satisfies 0.15d2 ≦ d1 ≦ 0.25d2.

6. The display panel according to claim 5, wherein in a direction from the second display area to the third display area, in the support assembly in the second display area, an absolute value of a difference between the first distance d1 between two adjacent support columns in the first direction and the preset distance d gradually decreases.

7. The display panel according to claim 5, wherein in a direction from the first display area to the third display area, in the support assembly in the first display area, an absolute value of a difference between the first distance d1 between two adjacent support columns in the first direction and the preset distance d gradually decreases.

8. The display panel according to claim 5, wherein the distribution density of the support columns in the third display area is greater than the distribution density of the support columns in the first display area and/or the second display area.

9. The display panel according to claim 1, wherein the pixel openings are arranged in an array along a first direction and a second direction, the second direction intersects the first direction, the support member is located between two adjacent pixel openings along the second direction, and the support columns are arranged along the first direction in the support member, wherein a spacing gap is provided between two adjacent pixel openings along the second direction, and an extension dimension of the spacing gap in the first direction is greater than an extension dimension of the spacing gap in the second direction.

10. The display panel according to claim 9, wherein two of the pixel openings adjacent in the second direction are aligned.

11. The display panel according to claim 9, wherein the pixel openings of two adjacent columns are arranged in a staggered manner in the first direction, and the column direction is the second direction.

12. The display panel of claim 9, wherein the plurality of support posts are spaced apart along the first direction in the support assembly.

13. The display panel according to claim 12, wherein at least two adjacent support pillars in the support assembly have a first and a second opposing surfaces, and the first and second opposing surfaces are parallel to each other, or the plane of the first opposing surface intersects the plane of the second opposing surface.

14. The display panel according to claim 13, wherein the first and second abutting surfaces are parallel to each other, and an angle between the first abutting surface and a second direction perpendicular to the first direction is less than or equal to 30 degrees.

15. The display panel according to claim 9, wherein two adjacent support columns in the support assembly are arranged in a staggered manner in the first direction.

16. The display panel according to claim 15, wherein in the support assembly, the offset portion of two adjacent support columns extends for an offset distance d3 in the second direction, the support columns extend for a width d4 in the second direction, and the offset distance d3 satisfies: d3 is more than or equal to 0.35d4 and less than or equal to 0.45d4.

17. The display panel according to claim 16, wherein the misalignment distance d3 is 4.5 μm to 5.5 μm.

18. The display panel of claim 12, wherein the support posts are polygonal in outline in the orthographic projection of the substrate.

19. The display panel of claim 18, wherein the support posts are quadrilateral in shape in orthographic projection of the substrate.

20. The display panel of claim 18, wherein the support posts have a trapezoidal outline in an orthographic projection of the substrate.

21. The display panel of claim 18, wherein the support assembly has a rectangular shape in an orthographic projection of the substrate.

22. The display panel of claim 18, wherein the orthographic projection of the support posts on the substrate has a rectangular outline and has a first side edge and a second side edge connected to each other.

23. The display panel according to claim 22, wherein extension lines of the first side edges of at least two adjacent supporting columns in the first direction in the supporting assembly intersect with each other, so that at least two adjacent supporting columns are arranged in a splay shape;

or the first side edges of at least two support columns adjacent to each other in the first direction in the support assembly are parallel, and the first side edges intersect with the row direction;

or the first side edges of at least two support columns adjacent to each other in the first direction in the support assembly are parallel, and the first side edges are parallel to the row direction.

24. The display panel according to claim 23, wherein an included angle between the first side edge and the first direction is smaller than an included angle between the second side edge and the first direction, and a length of the first side edge is greater than a length of the second side edge.

25. The display panel according to claim 22, wherein a ratio of the first side edge to the second side edge of at least one of the supporting pillars is 1.3 to 1.9.

26. The display panel according to claim 25, wherein the absolute value of the difference between the ratio of the first side edge and the second side edge in at least a partial region and a preset ratio is gradually decreased in a direction from the center of the display panel to the edge of the display panel, and the preset ratio is 1.6.

27. The display panel according to claim 25, wherein the length of the second side edge is greater than 11 μm and less than or equal to 20 μm.

28. The display panel of claim 25, wherein the sum of the lengths of the first sides of the supporting pillars in the supporting assembly is 30 μm to 36 μm.

29. The display panel according to claim 25, wherein the display panel comprises a display area, the display area comprises a first display area, a second display area and a third display area between the first display area and the second display area, the first display area and the second display area are arranged in an edge-to-center direction of the display area, and a ratio of the first side edge to the second side edge of the supporting column in the supporting assembly in the third display area is 1.3 to 1.9.

30. The display panel according to claim 29, wherein in a direction from the second display area to the third display area, in the support member in the second display area, a difference between a ratio of the first side edge and the second side edge of the support column and a preset ratio is gradually decreased in absolute value.

31. The display panel according to claim 29, wherein in the support member in the first display region, a difference between a ratio of the first side edge to the second side edge of the support column and a preset ratio is gradually decreased in absolute value in a direction from the first display region to the third display region.

32. The display panel according to claim 29, wherein the distribution density of the support columns in the third display region is greater than the distribution density of the support columns in the first display region and/or the second display region.

33. The display panel of claim 1, wherein at least two adjacent support pillars in the support assembly have a concave surface facing the other one of the support pillars, and a convex surface protruding from the other support pillar, and the convex portion is located in the concave surface.

34. The display panel of claim 33, wherein at least some of the support assemblies further comprise a support column, and wherein the total size of the support assembly comprising two or more support columns spaced apart is the same as the total size of the support assembly comprising a support column.

35. A display device comprising the display panel according to any one of claims 1 to 34.

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