Display panel and display device

Abstract

Embodiments of the present application provide a display panel and a display device, the display panel comprising: a substrate; a pixel definition layer disposed on the substrate, the pixel definition layer comprising an isolation structure and a pixel opening formed by the isolation structure; a support assembly disposed on a side of the isolation structure away from the substrate, the support assembly comprising two or more support columns located between two adjacent pixel openings; and a cover plate located on a side of the support assembly away from the pixel definition layer. Between the two adjacent pixel openings, the support assembly comprises two or more support columns, which can provide sufficient support force to the cover plate, thereby effectively improving the problem of easy deformation of the cover plate and improving the influence of deformation of the cover plate on the display effect of the display panel.

Description

Technical Field

[0001] This application relates to the field of display equipment technology, and in particular to a display panel and display device. Background Technology

[0002] Organic light-emitting diodes (OLEDs) are self-emissive display devices. Compared to traditional liquid crystal displays (LCDs), OLED technology does not require a backlight and is self-emissive. Furthermore, it can be made lighter and thinner, tolerates a wider range of temperature variations than LCD panels, and has a wider viewing angle. OLED displays are expected to become the next-generation flat panel display technology after LCDs and are currently one of the most watched technologies in the flat panel display field.

[0003] An OLED display panel consists of two main parts: a display substrate and a cover plate. The display substrate and the cover plate are connected to each other through an encapsulation structure. Support pillars are provided on the display substrate to support the cover plate. In existing technologies, the cover plate is prone to deformation due to the forces of gravity and atmospheric pressure. Since light from the display substrate passes through the cover plate, deformation of the cover plate can affect the display effect. Summary of the Invention

[0004] This application provides a display panel and a display device, which aims to solve the problem of easy deformation of the cover plate of the display panel.

[0005] An embodiment of the first aspect of this application provides a display panel, the display panel comprising: a substrate; a pixel definition layer disposed on the substrate, the pixel definition layer including an isolation structure and a pixel opening formed by the isolation structure; a support component disposed on the side of the isolation structure away from the substrate and located between two adjacent pixel openings, at least a portion of the support component including two or more spaced support pillars; and a cover plate located on the side of the support component away from the pixel definition layer.

[0006] According to one aspect of the present application, at least two adjacent support columns in the support assembly along a first direction have a first spacing d1, the extension dimension of the support column in the first direction is d2, and the first spacing d1 satisfies 0.15d2≤d1≤0.25d2.

[0007] According to any of the foregoing embodiments of this application, the first spacing d1 is 2.5 μm to 3.5 μm.

[0008] According to any of the foregoing embodiments of this application, along the direction from the center to the edge of the display panel, the absolute value of the difference between the first spacing d1 and the preset spacing value d in at least a portion of the area gradually decreases, and the preset spacing value d is 0.2d2.

[0009] According to any of the foregoing embodiments of one aspect of this application, the display panel includes a display area, which includes a first display area, a second display area, and a third display area located between the first and second display areas distributed along its edge to the center. In the support components within the third display area, the first spacing d1 between two adjacent support columns along the first direction satisfies 0.15d2≤d1≤0.25d2.

[0010] According to any of the foregoing embodiments of one aspect of this application, in the direction from the second display area to the third display area, in the support assembly within the second display area, the absolute value of the difference between the first spacing d1 between two adjacent support columns along the first direction and the preset spacing value d gradually decreases.

[0011] According to any of the foregoing embodiments of this application, in the direction from the first display area to the third display area, in the support assembly within the first display area, the absolute value of the difference between the first spacing d1 between two adjacent support columns along the first direction and the preset spacing value d gradually decreases.

[0012] According to any of the foregoing embodiments of one aspect of this application, a plurality of pixel openings are arranged in an array along a first direction and a second direction, the first direction and the second direction intersect, a support component is located between two adjacent pixel openings along the second direction, and a plurality of support pillars are arranged in the support component along the first direction, and there is a gap between two adjacent pixel openings along the second direction, the extension dimension of the gap in the first direction is greater than its extension dimension in the second direction.

[0013] According to any of the foregoing embodiments of this application, two adjacent pixel openings are aligned along the second direction.

[0014] According to any of the foregoing embodiments of this application, the pixel openings of two adjacent columns are staggered in a first direction, and the column direction is a second direction.

[0015] According to any of the foregoing embodiments of this application, a plurality of support columns in the support assembly are spaced apart along a first direction.

[0016] According to any of the foregoing embodiments of one aspect of this application, at least two adjacent support columns within the support assembly have opposing first mating surfaces and second mating surfaces, the first mating surfaces and the second mating surfaces being parallel to each other, or the plane containing the first mating surface intersecting the plane containing the second mating surface.

[0017] According to any of the foregoing embodiments of this application, the first mating surface and the second mating surface are parallel to each other, the angle between the first mating surface and the second direction is less than or equal to 30 degrees, and the first direction is perpendicular to the second direction.

[0018] According to any of the foregoing embodiments of this application, within the support assembly, two adjacent support columns are staggered in a first direction.

[0019] Within the support assembly, the misalignment distance between two adjacent support columns in the second direction is d3, and the width of the support column extending in the second direction is d4. The misalignment distance d3 satisfies: 0.35d4 ≤ d3 ≤ 0.45d4

[0020] According to any of the foregoing embodiments of this application, the misalignment distance d3 is 4.5 μm to 5.5 μm.

[0021] According to any of the foregoing embodiments of this application, the outer contour of the support component projected onto the substrate is polygonal.

[0022] According to any of the foregoing embodiments of this application, the outer contour of the support component projected onto the substrate is quadrilateral.

[0023] According to any of the foregoing embodiments of this application, the outer contour of the support column in the orthographic projection of the substrate is trapezoidal.

[0024] According to any of the foregoing embodiments of this application, the outer contour of the support component projected onto the substrate is rectangular.

[0025] According to any of the foregoing embodiments of this application, the orthographic projection of the support column on the substrate is rectangular, and has a first side and a second side that are connected to each other.

[0026] According to any of the foregoing embodiments of this application, the extension lines of the first sides of at least two adjacent support columns in the support assembly along the first direction intersect, such that at least two adjacent support columns are arranged in a figure-eight shape.

[0027] According to any of the foregoing embodiments of this application, the first side edges of at least two adjacent support columns along the first direction within the support assembly are parallel, and the first side edges intersect the first direction.

[0028] According to any of the foregoing embodiments of one aspect of this application, the first side edges of at least two adjacent support columns along the first direction within the support assembly are parallel, and the first side edges are parallel to the first direction.

[0029] According to any of the foregoing embodiments of this application, the angle between the first side and the first direction is smaller than the angle between the second side and the first direction, and the length of the first side is greater than the length of the second side.

[0030] According to any of the foregoing embodiments of one aspect of this application, the ratio of the first side and the second side of at least one support column is 1.3 to 1.9.

[0031] According to any of the foregoing embodiments of this application, in the direction from the center to the edge of the display panel, the absolute value of the difference between the ratio of the first side and the second side and a preset ratio gradually decreases in at least a portion of the area, where the preset ratio is 1.6.

[0032] According to any of the foregoing embodiments of one aspect of this application, the length of the second side is greater than 11 μm and less than or equal to 20 μm.

[0033] According to any of the foregoing embodiments of this application, the sum of the lengths of the first sides of the plurality of support columns in the support assembly is 30μm to 36μm.

[0034] According to any of the foregoing embodiments of one aspect of this application, the display panel includes a display area, which includes a first display area, a second display area, and a third display area located between the first and second display areas distributed along its edge to the center. In the support assembly within the third display area, the ratio of the first side and the second side of the support column is 1.3 to 1.9.

[0035] According to any of the foregoing embodiments of this application, in the direction from the second display area to the third display area, in the support assembly within the second display area, the absolute value of the difference between the ratio of the first side and the second side of the support column and a preset ratio gradually decreases.

[0036] According to any of the foregoing embodiments of this application, in the direction from the first display area to the third display area, in the support assembly within the first display area, the absolute value of the difference between the ratio of the first side and the second side of the support column and a preset ratio gradually decreases.

[0037] According to any of the foregoing embodiments of this application, the distribution density of support columns in the third display area is greater than the distribution density of support columns in the first display area and / or the second display area.

[0038] According to any of the foregoing embodiments of this application, in at least two adjacent support columns within the support assembly, one of the columns has a recessed groove on its surface facing the other, and the other column has a protruding protrusion located within the groove.

[0039] According to any of the foregoing embodiments of this application, at least a portion of the support component further includes a support column, and the total size of the support component including two or more spaced support columns is the same as the total size of the support component including one support column.

[0040] The second aspect of this application also provides a display device, which includes the display panel of any of the first aspect embodiments described above.

[0041] In the display panel of this application embodiment, the display panel includes a substrate, a pixel definition layer, a support component, and a cover plate. The pixel definition layer includes an isolation structure and pixel openings, which are used to accommodate light-emitting material to enable the display panel to emit light. The support component is supported between the isolation structure and the cover plate and is used to provide support force to the cover plate. Between two adjacent pixel openings, the support component includes two or more support pillars. The two or more support pillars can provide sufficient support force to the cover plate, thereby effectively improving the problem of easy deformation of the cover plate, and thus improving the impact of cover plate deformation on the display effect of the display panel. Attached Figure Description

[0042] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar features.

[0043] Figure 1 This is a top view of a display panel provided in the first aspect embodiment of this application;

[0044] Figure 2 One example Figure 1 A magnified schematic diagram of the local structure at point I;

[0045] Figure 3 yes Figure 2 Sectional view at point AA;

[0046] Figure 4 In another example Figure 1 A magnified schematic diagram of the local structure at point I;

[0047] Figure 5 In another example Figure 1 A magnified schematic diagram of the local structure at point I;

[0048] Figure 6 Is this another example? Figure 1 A magnified schematic diagram of the local structure at point I;

[0049] Figure 7 This is yet another example Figure 1 A magnified schematic diagram of the local structure at point I;

[0050] Figure 8 This is yet another example Figure 1 A magnified schematic diagram of the local structure at point I;

[0051] Figure 9 This is yet another example Figure 1 A magnified schematic diagram of the local structure at point I;

[0052] Figure 10 This is yet another example Figure 1 A magnified schematic diagram of the structure at point I in the middle.

[0053] Explanation of reference numerals in the attached figures:

[0054] 10. Display panel;

[0055] 100. Substrate; 110. Pixel electrode;

[0056] 200, Pixel definition layer; 210, Isolation structure; 220, Pixel aperture; 221, First pixel aperture; 222, Second pixel aperture; 223, Third pixel aperture;

[0057] 300, Support component; 310, Support column; 310a, Misaligned portion; 310b, Overlapping portion; 311, First mating surface; 312, Second mating surface; 313, First side; 314, Second side; 315, Groove; 316, Protrusion;

[0058] 400. Cover plate;

[0059] AA1, First display area; AA2, Second display area; AA3, Third display area;

[0060] X represents the row direction; Y represents the column direction. Detailed Implementation

[0061] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0062] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0063] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0064] An OLED display panel consists of two main parts: a display substrate and a cover plate. The display substrate and the cover plate are connected to each other through an edge encapsulation structure. In addition, to prevent the middle part of the display substrate and the cover plate from contacting each other, a support column with a certain extension height is set on the display substrate to support the cover plate and prevent the cover plate from damaging the light-emitting device.

[0065] In the prior art, multiple support pillars are set on the display substrate to support the cover plate. However, after a period of use, the display panel will exhibit the Newton's rings phenomenon, that is, an abnormal ring area appears in the area near the edge of the display panel, which seriously affects the display effect and lifespan of the display panel.

[0066] The inventors discovered through research that this display abnormality is caused by the deformation of the cover plate after a period of use. After a period of use, the cover plate deforms under the influence of gravity and atmospheric pressure, resembling a bathtub curve. The cover plate concaves towards the display substrate, forming a curved surface with a certain radius of curvature. When light shines from the cover plate onto the display substrate, the optical path difference between different light beams varies within the microcavity formed between the cover plate and the display substrate. The reflected light from the upper and lower surfaces of the cover plate and the display substrate interferes with each other, causing Newton's rings to appear on the display panel, thus affecting the product's display performance.

[0067] Further research by the inventors revealed that the Newton's rings phenomenon occurs because the supporting pillars have insufficient support force and poor resistance to deformation. This leads to deformation of the cover plate due to the deformation of some supporting pillars. Furthermore, the inventors discovered that a supporting pillar, whose size matches the gap between two adjacent pixel openings, is typically placed between them. Due to limitations in the manufacturing process, the supporting pillars are prone to collapse and deformation after molding, resulting in a significant difference between the actual and designed shapes. For example, a supporting pillar designed as a columnar structure may ultimately become a frustum-shaped structure due to manufacturing limitations. This insufficient support force makes the cover plate highly susceptible to deformation under the supporting force of the pillars.

[0068] To address the aforementioned technical problems, this application is proposed. For a better understanding of this application, the following is combined with... Figures 1 to 10The display panel and display device according to the embodiments of this application will be described in detail.

[0069] Please see Figures 1 to 3 , Figure 1 A top view of a display panel 1010 provided in the first aspect of this application. Figure 2 yes Figure 1 A magnified schematic diagram of the structure at point I in the middle. Figure 3 yes Figure 2 Sectional view at point AA.

[0070] According to the first aspect of the present application, the display panel 10 includes a substrate 100, a pixel definition layer 200, a support component 300, and a cover plate 400. The pixel definition layer 200 is disposed on the substrate 100 and includes an isolation structure 210 and a pixel opening 220 formed by the isolation structure 210. The support component 300 is disposed on the side of the isolation structure 210 away from the substrate 100 and located between at least a portion of two adjacent pixel openings 220. At least a portion of the support component 300 includes two or more support pillars 310. The cover plate 400 is located on the side of the support component 300 away from the pixel definition layer 200.

[0071] In the display panel 10 of this embodiment, the display panel 10 includes a substrate 100, a pixel definition layer 200, a support component 300, and a cover plate 400. The pixel definition layer 200 includes an isolation structure 210 and pixel openings 220. The pixel openings 220 are used to accommodate light-emitting materials to enable the display panel 10 to emit light. The support component 300 is supported between the isolation structure 210 and the cover plate 400 and is used to provide support force to the cover plate 400. Between at least two partially adjacent pixel openings 220, the support component 300 includes two or more support pillars 310. The actual shape of the support pillars 310 differs little from the designed shape, which ensures that there is sufficient contact area between the support pillars 310 and the cover plate 400. This allows the two or more support pillars 310 to provide sufficient support force to the cover plate 400, thereby effectively improving the problem of easy deformation of the cover plate 400 and thus reducing the impact of cover plate 400 deformation on the display effect of the display panel 10.

[0072] Furthermore, compared to the approach of providing one support post 310 between at least two partially adjacent pixel openings 220, this application effectively divides the support post 310 between two adjacent pixel openings 220 into multiple arrangements, resulting in a smaller gap between adjacent support posts 310. When the support post 310 collapses and deforms after molding, the smaller gap allows adjacent support posts 310 to mutually restrain each other, thereby reducing the collapse and deformation of the support post 310, reducing the difference between the actual shape and the designed shape of the support post 310, and enabling the support post 310 to provide sufficient support force to the cover plate 400.

[0073] The number of support columns 310 within the support assembly 300 can be two, or, please refer to [link / reference needed]. Figure 4 The number of support columns 310 within the support assembly 300 can also be three. In other embodiments, the number of support columns 310 within the support assembly 300 can also be more.

[0074] The following shows the total deformation of the support column 310 when the number of support columns 310 in the support component 300 between two adjacent pixel openings 220 is 1, 2, and 3 respectively. When the number of support columns 310 in the support component 300 is 2 and 3, the total size of the support component 300 is the same as the total size of the support component 300 including one support column 310.

[0075]

[0076] The total deformation of the support component 300 refers to the total height deformation of the support component 300, that is, the deformation of the support component 300 in the thickness direction of the display panel 10. As can be seen from the table above, when the support component 300 includes two or more support pillars 310, the deformation of the support pillars 310 decreases significantly. Therefore, when the support component 300 includes two or more support pillars 310, it can effectively improve the deformation of the support pillars 310, increase the supporting force of the support component 300, and improve the deformation of the cover plate 400.

[0077] Optionally, when the support assembly 300 includes two or more support columns 310, the dimensions of the two or more support columns 310 may be the same or different. For example... Figure 2 As shown, the support assembly 300 includes two or more support columns 310 of the same size. Alternatively, as... Figure 5 As shown, the support assembly 300 includes two or more support columns 310 with different structures.

[0078] There are various ways to arrange the substrate 100. The substrate 100 may include a substrate and an array substrate. The array substrate may include thin-film transistors and signal lines. The signal lines may include data lines, scan lines, power lines and other signal lines.

[0079] Optionally, a pixel electrode 110 is also provided on the substrate 100, and the orthographic projection of the pixel electrode 110 on the substrate 100 and the orthographic 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.

[0080] Optionally, a light-emitting unit may be disposed within the pixel opening 220. The light-emitting unit includes a light-emitting material and is used for light emission display. Optionally, a common electrode may also be disposed on the side of the support component away from the pixel definition layer 200. The common electrode cooperates with the pixel electrode 110 and is used to drive the light-emitting unit to emit light.

[0081] Optionally, the light-emitting unit includes 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 the red light-emitting unit, a second pixel opening 222 for accommodating the blue light-emitting unit, and a third pixel opening 223 for accommodating the green light-emitting unit. In other embodiments, the light-emitting unit may also include light-emitting units for emitting other colors of light, and the pixel opening 220 may also include light-emitting units for accommodating other colors of light.

[0082] In some alternative embodiments, please continue to refer to Figures 2 to 5 The support assembly 300 has a first spacing d1 between at least two adjacent support columns 310 along the first direction X, and the extension dimension of the support column 310 in the first direction is d2. The first spacing d1 satisfies 0.15d2≤d1≤0.25d2.

[0083] In these optional embodiments, d1≥0.15d2 can improve the difficulty of manufacturing the support column 310 due to d1 being too small; d1≤0.25d2 can improve the insufficient limiting between two adjacent support columns 310 due to d1 being too large, and the support column 310 deforming too much, resulting in a large difference between its actual shape and the designed shape, so that the support column 310 cannot provide sufficient support force to the cover plate 400.

[0084] Wherein, when the support assembly 300 includes multiple support columns 310, d2 can be the extension dimension of any support column 310 within the support assembly 300 in the first direction. Optionally, d2 can be the extension dimension of either of the two support columns 310 located on both sides of the first spacing d1 in the first direction in the first direction. Optionally, d2 can be the average extension dimension of the two support columns 310 located on both sides of the first spacing d1 in the first direction in the first direction.

[0085] Assuming the extension dimension of the support column 310 in the first direction is 16μm, the dimensions of two adjacent support columns 310 in the first direction are equal, and the first spacing d1 between two adjacent support columns 310 in the first direction is set to 1μm, 2μm, 3μm, 4μm and 5μm respectively, the deformation of the cover plate 400 is shown in the table below:

[0086] 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

[0087] As shown in the table above, the deformation of the cover plate 400 is relatively large when the first spacing d1 is 1μm, 2μm, 4μm, and 5μm. The deformation of the cover plate 400 is smallest when the first spacing d1 is 3μm, that is, when 0.15d2≤d1≤0.25d2.

[0088] Optionally, the first spacing d1 is 2.5μm to 3.5μm. This can improve the deformation of the cover plate 400 caused by insufficient support force of the support column 310 due to the first spacing d1 being too large or too small.

[0089] Optionally, the number of support components 300 is two or more, and the spacing between two adjacent support columns 310 along the first direction in each support component 300 satisfies 0.15d2≤d1≤0.25d2.

[0090] Alternatively, in some other embodiments, along the direction from the center to the edge of the display panel 10, the absolute value of the difference between the first spacing d1 and the preset spacing value d gradually decreases in at least a portion of the area, where the preset spacing value d is 0.2d2.

[0091] In these optional embodiments, along the direction from the center to the edge of the display panel 10, the closer the value of the first spacing d1 is to the preset spacing value d, which is 0.2d2, the better the support body 310 has in terms of support performance when the first spacing d1 is equal to the preset spacing value d. Therefore, when the first spacing d1 is equal to the preset spacing value d, the value of the first spacing d1 is ideal, and the support effect of the support 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 spacing d1 is to the ideal value in at least some areas, the stronger the support capacity of the support column 310, and the less likely the cover plate 400 is to deform in the edge area, which can effectively improve the Newton's rings phenomenon caused by the deformation of the cover plate 400 in the edge area.

[0092] Optional, please continue reading Figure 1 The display panel 10 has a display area, which 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 AA2, distributed from its edge to its center.

[0093] The first display area AA1 is adjacent to the outer edge of the display area, that is, the outer edge of the first display area AA1 is the outer edge of the display area, and the first display area AA1 extends from the outer edge of the display area to the center of the display area.

[0094] The dimensions of the first display area AA1, the second display area AA2, and the third display area AA3 are not limited. Their dimensions can be determined based on the Newton's rings phenomenon observed in similar display panels 10 with the same display area dimensions. The Newton's rings phenomenon typically occurs at a certain distance from the edge of the display area; that is, the Newton's rings phenomenon usually occurs in the third display area AA3.

[0095] In some optional embodiments, the first distance d1 between two adjacent support columns 310 in the support assembly 300 within the third display area AA3 along the first direction satisfies 0.15d2≤d1≤0.25d2. This improves the support effect of the support columns 310 within the third display area AA3 and better mitigates the Newton's rings phenomenon caused by the deformation of the cover plate 400.

[0096] Optionally, the values ​​of multiple first spacings d1 within the third display area AA3 can be equal, or the preset spacing value d can be equal to 0.18d2. In the region of the third display area AA3 where the distances from both the first display area AA1 and the second display area AA2 are equal, i.e., in the middle region of the third display area AA3, the first spacing d1 satisfies d1 = d = 0.18d2. This further improves the supporting capacity of the support column 310 in the middle region of the third display area AA3 and better mitigates the Newton's rings phenomenon caused by the deformation of the cover plate 400.

[0097] Optionally, within the second display area AA2, in the direction from the second display area AA2 to the third display area AA3, the absolute value of the difference between the first spacing d1 and the preset spacing value d gradually decreases, and the preset spacing value d satisfies 0.15d2≤d≤0.25d2. Therefore, the closer to the third display area AA3, the closer the first spacing d1 is to the ideal value, the stronger the supporting capacity of the support column 310, and the better it can withstand the Newton's rings phenomenon caused by the deformation of the cover plate 400.

[0098] Optionally, within the first display area AA1, in the direction from the first display area AA1 to the third display area AA3, the absolute value of the difference between the first spacing d1 and the preset spacing value d gradually decreases, and the preset spacing value d satisfies 0.15d2≤d≤0.25d2. Therefore, the closer to the third display area AA3, the closer the first spacing d1 is to the ideal value, the stronger the supporting capacity of the support column 310, and the better it can withstand the Newton's rings phenomenon caused by the deformation of the cover plate 400.

[0099] In some alternative embodiments, such as Figures 2 to 5As shown, the pixel openings 220 are arranged in an array along a first direction X and a second direction Y. A support component 300 is located between two adjacent pixel openings 220 along the second direction Y, and multiple support pillars 310 within the support component 300 are arranged at intervals along the first direction X. There is a gap between two adjacent pixel openings 220 along the second direction Y, and the extension dimension of the gap in the first direction X is greater than its extension dimension in the second direction Y. It should be noted that the first direction X can refer to the row direction of the pixel opening arrangement, and the second direction Y can refer to the column direction of the pixel opening arrangement. Of course, the first direction X can also be the column direction of the pixel opening arrangement, and the second direction Y can also be the row direction of the pixel opening arrangement; the specific direction is not limited.

[0100] In these optional embodiments, the extension dimension of the gap between two adjacent pixel openings 220 in the second direction Y along the first direction X is greater than its extension dimension in the second direction Y. When the support component 300 is located between two adjacent pixel openings 220 in the second direction Y, and multiple support pillars 310 within the support component 300 are arranged at intervals along the first direction X, the distribution of the support pillars 310 and the pixel openings 220 can be optimized, allowing multiple support pillars 310 to be set between two adjacent pixel openings 220, further improving the support effect of the support pillars 310.

[0101] Optionally, two adjacent pixel openings 220 are aligned along the second direction Y, making the shape of the gap more regular. Optionally, the pixel openings 220 have the same extension dimension in the first direction X.

[0102] Optionally, the pixel openings 220 in two adjacent columns are staggered in the first direction X, with the column direction being the second direction Y. That is, the pixel opening 220 in the previous column is located between two adjacent pixel openings 220 in the next column. On the one hand, when light-emitting units are provided within the pixel openings 220, the obvious display stripe phenomenon of the display panel 10 can be improved. On the other hand, the staggered arrangement of the support components 300 in two adjacent columns makes the distribution of multiple support components 300 more uniform, further improving the support capacity of the support components 300 for the cover plate 400, making the force on the cover plate 400 more balanced and less prone to deformation.

[0103] When the multiple support columns 310 within the support assembly 300 are distributed along the first direction X, the multiple support columns 310 within the support assembly 300 are spaced apart or interlocked along the first direction X. Spaced apart distribution of the multiple support columns 310 within the support assembly 300 along the first direction X means that the multiple support columns 310 within the support assembly 300 are completely separated and do not overlap in the first direction X.

[0104] like Figures 2 to 5As shown, in some optional embodiments, a plurality of support columns 310 within the support assembly 300 are spaced apart along a first direction X.

[0105] In these optional embodiments, the first direction X is the first direction described above, and there is a first gap d1 between two adjacent support columns 310, which makes the structure of the support column 310 simple and easy to manufacture.

[0106] In some alternative embodiments, such as Figures 2 to 5 As shown, at least two adjacent support columns 310 within the support assembly 300 have a first mating surface 311 and a second mating surface 312 with opposite sides. There are various ways to set the relative positions of the first mating surface 311 and the second mating surface 312.

[0107] For example, the first mating surface 311 and the second mating surface 312 are parallel to each other. This is equivalent to dividing the support assembly 300 into multiple support columns 310 along a reference plane parallel to the first mating surface 311 and the second mating surface 312, with the multiple support columns 310 spaced apart. When the first mating surface 311 and the second mating surface 312 are parallel to each other, as... Figures 2 to 5 As shown, the first mating surface 311 and the second mating surface 312 can be arranged parallel to the second direction Y. Alternatively, as... Figure 6 and Figure 7 As shown, the first mating surface 311 and the second mating surface 312 can intersect with the second direction Y. When the first mating surface 311 and the second mating surface 312 intersect with the second direction Y, the angle between the first mating surface 311 and the second mating surface 312 and the second direction Y is less than or equal to 30 degrees. This avoids the angle between the first mating surface 311 and the second mating surface 312 and the second direction Y being too large, which would result in the extension dimension of the support column 310 in the second direction Y being too small, and thus easily causing large-area collapse deformation during the manufacturing process. The first direction X and the second direction Y are perpendicular.

[0108] Alternatively, in some other alternative embodiments, such as Figure 8 As shown, the plane containing the first docking surface 311 and the plane containing the second docking surface 312 can also intersect, improving the uniformity of the distribution of multiple support columns 310 within the support assembly 300.

[0109] In some alternative embodiments, such as Figure 9 As shown, when multiple support columns 310 within the support assembly 300 are distributed at intervals along the first direction X, two adjacent support columns 310 are staggered in the first direction X.

[0110] In these alternative embodiments, two adjacent support columns 310 are not aligned in the first direction X, which can improve the uniformity of the distribution of multiple support columns 310 in the first direction X within the support assembly 300, improve the uniformity of the force on the cover plate 400, and better improve the deformation of the cover plate 400.

[0111] The staggered arrangement of two adjacent support columns 310 in the first direction X means that a portion of the two adjacent support columns 310 overlaps in the first direction X, while the other portion does not overlap in the first direction X. For example, the overlapping portion of two adjacent support columns 310 in the first direction X is called the overlapping portion 310b, and the portion of at least one of them that is staggered from the other in the first direction X is called the staggered portion 310a.

[0112] Within the same support component 300, the misaligned portion 310a of two adjacent support columns 310 extends by a distance d3 in the second direction Y. The extension width of a single support column 310 in the second direction Y is d4, and the misalignment distance d3 satisfies: 0.35d4 ≤ d3 ≤ 0.45d4. The overlapping portion 310b of two adjacent support columns 310 extends by a distance d5 in the second direction Y, therefore d3 = d4 - d5.

[0113] In these optional embodiments, when the misalignment distance d3 is 35% to 45% of the extension width d4, it avoids the situation where the misalignment distance d3 is too small, resulting in the overlap portion 310b of two adjacent support columns 310 being too small, thus failing to achieve the goal of relatively uniform distribution of multiple support columns 310 within the support assembly 300 in the first direction X, thereby affecting the support capacity of the entire support assembly 300. It also avoids the situation where the misalignment distance d3 is too large, causing two adjacent support columns 310 to fail to effectively utilize the limiting effect of the first gap d1, resulting in excessive deformation of the support column 310 during manufacturing, which would also affect the support capacity of the entire support assembly 300.

[0114] Assuming the extension width d4 of the support column 310 in the second direction Y is 12μm, and the misalignment distance d3 of the misaligned portions 310a of two adjacent support columns 310 in the second direction Y is set to 3μm, 4μm, 5μm, 6μm, 7μm and 9μm respectively, the deformation of the cover plate 400 is shown in the table below:

[0115] Example 9 3μm 2.3213nm Example 10 4μm 2.22885nm Example 11 5μm 1.418nm Example 12 6μm 2.2818nm Example 13 7μm 2.1362nm Example 14 9μm 2.2795nm

[0116] As shown in the table above, the deformation of the cover plate 400 is relatively large when the misalignment distance d3 is 3μm, 4μm, 6μm, 7μm, and 9μm. The deformation of the cover plate 400 is smallest when the misalignment distance d3 is 5μm, i.e., when 0.35d4 ≤ d3 ≤ 0.45d4. Therefore, by reasonably setting the misalignment distance d3, the support capacity of the support component 300 can be improved, and the deformation can be mitigated.

[0117] Optionally, the misalignment distance d3 is 4.5μm to 5.5μm. When the misalignment distance d3 is within the above range, it can avoid the misalignment distance d3 being too small or too large, which would affect the support capability of the support component 300.

[0118] The support column 310 can be shaped in various ways, and its orthographic projection on the substrate 100 has a polygonal outer contour. For example, the orthographic projection of the support column 310 on the substrate 100 can be triangular, quadrilateral, pentagonal, etc. Figure 6 As shown, the outer contour of the orthographic projection of the support column 310 on the substrate 100 is trapezoidal. For example, when the support assembly 300 includes two support columns 310, the outer contour of the orthographic projection of the support column 310 on the substrate 100 can be a right trapezoid, and the first mating surface 311 and the second mating surface 312 can be parallel to each other and intersect with the second direction Y. This is equivalent to cutting the support assembly 300 into two support columns 310 along a direction parallel to the first mating surface 311.

[0119] Optionally, in other embodiments, the support assembly 300 may also include three or more support columns 310. Among the three or more support columns 310, the support columns 310 located on both sides of the first direction X may be right trapezoids, and the support column 310 located in the middle may be non-right trapezoids, so that the overall outer contour of the orthographic projection of the support assembly 300 on the substrate 100 is rectangular, which can increase the distribution area of ​​the support columns 310.

[0120] In other embodiments, such as Figures 2 to 5 As shown, the support post 310 can have a rectangular outer contour when projected onto the substrate 100. The orthographic projection of the support post 310 onto the substrate 100 includes a first side 313 and a second side 314 that are connected to each other. In these alternative embodiments, the shape of the support post 310 is more regular, making the fabrication of the support post 310 simpler.

[0121] When the orthographic projection of the support pillar 310 onto the substrate 100 is rectangular, there are various ways in which the support pillar 310 can be distributed. In some embodiments, such as... Figures 2 to 5 As shown, the first side 313 of at least two adjacent support columns 310 along the first direction X are parallel, and the first side 313 is parallel to the first direction X.

[0122] In these optional embodiments, two adjacent support pillars 310 are spaced apart along the first direction X, the first side 313 of the support pillar 310 is parallel to the first direction X, and the support pillar 310 is located between adjacent pixel openings along the second direction Y, such that the distance between the same support pillar 310 and the pixel openings 220 located on both sides of it in the second direction Y is the same, and the distance between the same support pillar 310 and the pixel openings 220 located on both sides of it in the second direction Y is relatively large. On the one hand, this facilitates the fabrication of the support pillar 310, and on the other hand, when the support pillar 310 collapses or deforms during the fabrication process, it can prevent the material of the support pillar 310 from flowing into the pixel openings 220 and affecting the light emission of the display panel 10.

[0123] In other embodiments, such as Figure 7 As shown, the first side 313 of at least two adjacent support columns 310 along the first direction X are parallel, and the first side 313 intersects the first direction X.

[0124] In these optional embodiments, the first side 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, making the force on the cover plate 400 more balanced.

[0125] In some other embodiments, such as Figure 8 As shown, the extension lines of the first side edges 313 of at least two adjacent support columns 310 along the first direction X within the support assembly 300 intersect, such that at least two adjacent support columns 310 are arranged in a figure-eight shape.

[0126] In these optional embodiments, the first side 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 opposite, so that the two adjacent support columns 310 are arranged in a figure-eight shape, making the force on the cover plate 400 more balanced.

[0127] There are various ways to set the lengths of the first side 313 and the second side 314. In some optional embodiments, such as... Figure 7 As shown, the angle between the first side 313 and the first direction X is smaller than the 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.

[0128] The gap between two adjacent pixel openings 220 in the second direction Y has an extension dimension in the first direction X that is greater than its extension dimension in the second direction Y. The length of the first side 313 is greater than the length of the second side 314, which ensures that the support column 310 has a sufficiently large size in the first direction X, thereby ensuring that the size of a single support column 310 is large enough to improve the support capacity of the support assembly 300.

[0129] The angle between the first side 313 and the first direction X can be 0, in which case the first side 313 and the first direction X are set parallel. Alternatively, the angle between the first side 313 and the first direction X is less than 90 degrees.

[0130] In some alternative embodiments, the ratio of the first side 313 to the second side 314 of at least one of the support columns 310 is 1.3 to 1.9.

[0131] In these optional embodiments, when the preset ratio of the first side 313 and the second side 314 is within the above range, it can ensure that the size is large enough and that the column 310 has sufficient supporting force.

[0132] The following table is obtained by changing four variables: the density of the support column 310, the length of the first side 313, the length of the second side 314, and the height of the support column 310, and by detecting the Newton's rings phenomenon of the display panel 10:

[0133]

[0134] As can be seen from Examples 16 to 20 in the table above, even with an increase in the distribution density of the support column 310, when the height of the support column 310 remains constant, Newton's rings phenomenon still occurs when the ratio of the first side 313 to the second side 314 is greater than 1.9. Furthermore, a comparison between Examples 22 and 24 shows that, with the height and distribution density of the support column 310 remaining constant, when the ratio of the first side 313 to the second side 314 is greater than 1.9, further increasing the length of the first side 313 of the support column 310, and further increasing the ratio of the first side 313 to the second side 314, exacerbates the Newton's rings phenomenon.

[0135] As can be seen from Example 26, when the ratio of the first side 313 to the second side 314 is less than 1.3, Newton's rings are prone to appear in the display panel 10. Furthermore, as can be seen from Examples 21 to 26, Newton's rings are prone to appear when the side length of the second side 314 is equal to 11 μm. Therefore, having a side length of the second side 314 greater than 11 μm can improve the Newton's rings problem.

[0136] Assuming the length of the first side 313 of the support column 310 is 16μm, and the lengths of the second side 314 of the support column 310 are set to 12μm, 14μm, and 16μm respectively, the deformation of the cover plate 400 is shown in the table below:

[0137]

[0138]

[0139] Assuming the length of the second side 314 of the support column 310 is 12μm, and the lengths of the first side 313 of the support column 310 are set to 16μm, 17μm, and 18μm respectively, the deformation of the cover plate 400 is shown in the table below:

[0140] Example 30 16μm 2.3466nm 100％ Example 31 17μm 2.2438nm 104.6％ Example 32 18μm 2.1371nm 109.8％

[0141] According to the two tables above, 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 of the cover plate 400 gradually decreases, while the deformation ratio of the cover plate 400 gradually increases. When the length of the second side 314 is 12 μm and the length of the first side 313 gradually increases, the deformation of the cover plate 400 gradually increases.

[0142] The two tables above also show that when the length of the second side 314 and the length of the first side 313 increase by the same amount, increasing the length of the second side 314 has a more significant effect on improving the deformation of the cover plate 400. Therefore, ensuring that the length of the second side 314 is within a suitable range, i.e., when the second side 314 is greater than 11 μm, can better improve the supporting capacity of the support column 310 and better mitigate the deformation of the cover plate 400.

[0143] Optionally, the length of the second side 314 is greater than 11 μm and less than or equal to 20 μm, which can better improve the Newton's rings phenomenon caused by the deformation of the cover plate 400.

[0144] Optionally, the length of the first side 313 of the support post 310 can be 15μm to 18μm. Optionally, the sum of the lengths of the first side 313 of the multiple support posts 310 within the support assembly 300 can be 30μm to 36μm. When the size of the support post 310 is within the above range, it can be ensured that the support post 310 has sufficient supporting force and that there is sufficient spacing between the support post 310 and the pixel opening 220.

[0145] In the display panel 10, there are various ways to set the ratio of the first side 313 and the second side 314 of the multiple support columns 310. For example, the ratio of the first side 313 and the second side 314 of the multiple support columns 310 can all be equal.

[0146] Alternatively, in some other optional embodiments, the absolute value of the difference between the ratio of the first side 313 and the second side 314 and a preset ratio gradually decreases in the direction from the center to the edge of the display panel 10, where the preset ratio is 1.6. That is, the closer to the edge region, the closer the ratio of the first side 313 and the second side 314 is to the ideal value, the stronger the supporting capacity of the support column 310, and the better it can improve the effect of Newton's rings.

[0147] Optionally, when the display panel 10 includes the first display area AA1, the second display area AA2, and the third display area AA3 described above, the ratio of the first side 313 and the second side 314 of the support column 310 in the third display area AA3 is 1.3 to 1.9. This ensures that the support column 310 in the third display area AA3 has sufficient supporting force, thus better mitigating the Newton's rings phenomenon.

[0148] Optionally, within 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 313 and the second side 314 and a preset ratio gradually decreases, with the preset ratio being 1.6. That is, within the first display area AA1, the closer to the third display area AA3, the stronger the support capacity of the support column 310, which can better improve the Newton's rings phenomenon.

[0149] Optionally, within 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 313 and the second side 314 and a preset ratio gradually decreases. That is, within the second display area AA2, the closer to the third display area AA3, the stronger the supporting capacity of the support column 310, which can better improve the Newton's rings phenomenon.

[0150] 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 AA2.

[0151] The distribution density of the support pillars 310 can be the ratio of the number of support pillars 310 to the area of ​​the display area in which they are located. Alternatively, the distribution density of the support pillars 310 can be the ratio of the distribution area of ​​the support pillars 310 to the area of ​​the display area in which they are located.

[0152] When the distribution density of the support columns 310 in the third display area AA3 is greater than that in the first display area AA1, the support force of the support columns 310 in the third display area AA3 is stronger, which can improve the Newton's rings phenomenon.

[0153] When the distribution density of the support columns 310 in the third display area AA3 is greater than that in the second display area AA2, the support force of the support columns 310 in the third display area AA3 is stronger, which can improve the Newton's rings phenomenon.

[0154] In other embodiments, such as Figure 10 As shown, in at least two adjacent support columns 310 within the support assembly 300, one of them has a recessed groove 315 on its surface facing the other, and the other has a protrusion 316, with the protrusion 316 located in the groove 315.

[0155] In these alternative embodiments, the groove 315 of one support post 310 can provide a limit to the protrusion 316 of the other support post 310, reducing the collapse deformation of the protrusion 316 during the manufacturing process, thereby reducing the difference between the actual shape and the designed shape of the support post 310, improving the support capacity of the support post 310, and better improving the altered deformation.

[0156] In these alternative embodiments, at least a portion of the support assembly further includes a support column, and the total size of the support assembly including two or more spaced-apart support columns is the same as the total size of the support assembly including one support column.

[0157] The second aspect of this application also provides a display device, including the display panel 10 of any of the first aspect embodiments described above. Since the display device of this application includes the aforementioned display panel 10, it possesses the beneficial effects of the aforementioned display panel 10, which will not be elaborated further here.

[0158] The display devices in this application include, but are not limited to, mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, control consoles, and other devices with display functions.

[0159] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized in that, include: substrate; A pixel definition layer is disposed on the substrate, the pixel definition layer including an isolation structure and a pixel opening formed by the isolation structure; A support component is disposed on the side of the isolation structure away from the substrate and located between at least two adjacent pixel openings, and at least a portion of the support component includes two or more spaced support pillars; The cover plate is located on the side of the support assembly opposite to the pixel definition layer. Wherein, at least two adjacent support columns in the support assembly along the first direction have a first spacing d1, and the extension dimension of the support column in the first direction is d2; The display panel includes a display area, which 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, distributed along its edge to the center. Within the third display area, the first spacing d1 between two adjacent support columns along the first direction is equal; Within the second display area, in the direction from the second display area to the third display area, the absolute value of the difference between the first spacing and the preset spacing value d gradually decreases; Within the first display area, in the direction from the first display area to the third display area, the absolute value of the difference between the first spacing and the preset spacing value d gradually decreases, and the preset spacing value d satisfies 0.15d² ≤ d ≤ 0.25d².

2. The display panel according to claim 1, characterized in that, The first spacing d1 satisfies 0.15d2≤d1≤0.25d2.

3. The display panel according to claim 2, characterized in that, The first spacing d1 is 2.5μm~3.5μm.

4. The display panel according to claim 1, characterized in that, 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.

5. The display panel according to claim 1, characterized in that, The plurality of pixel openings are arranged in an array along a first direction and a second direction, the second direction intersecting the first direction. The support component is located between two adjacent pixel openings along the second direction, and a plurality of support columns are arranged within the support component along the first direction. There is a gap between two adjacent pixel openings along the second direction, and the extension dimension of the gap in the first direction is greater than its extension dimension in the second direction.

6. The display panel according to claim 5, characterized in that, The openings of two adjacent pixels along the second direction are aligned.

7. The display panel according to claim 5, characterized in that, The pixel openings of two adjacent columns are staggered in the first direction, and the column direction is the second direction.

8. The display panel according to claim 5, characterized in that, The plurality of support columns within the support assembly are spaced apart along the first direction.

9. The display panel according to claim 8, characterized in that, At least two adjacent support columns within the support assembly have opposing first and second mating surfaces, which are parallel to each other, or the plane containing the first mating surface intersects the plane containing the second mating surface.

10. The display panel according to claim 9, characterized in that, The first mating surface and the second mating surface are parallel to each other, the angle between the first mating surface and the second direction is less than or equal to 30 degrees, and the second direction is perpendicular to the first direction.

11. The display panel according to claim 5, characterized in that, Within the support assembly, two adjacent support columns are staggered in the first direction.

12. The display panel according to claim 11, characterized in that, Within the support assembly, the misalignment of two adjacent support columns extends by a distance d3 in the second direction, and the width of the support column extending in the second direction is d4. The misalignment distance d3 satisfies: 0.35d4≤d3≤0.45d4.

13. The display panel according to claim 12, characterized in that, The misalignment distance d3 is 4.5μm~5.5μm.

14. The display panel according to claim 5, characterized in that, The outer contour of the support column in the orthographic projection on the substrate is polygonal.

15. The display panel according to claim 14, characterized in that, The outer contour of the support column in the orthographic projection on the substrate is quadrilateral.

16. The display panel according to claim 15, characterized in that, The outer contour of the support column projected onto the substrate is trapezoidal; Alternatively, the outer contour of the support component in the orthographic projection of the substrate is rectangular.

17. The display panel according to claim 14, characterized in that, The outer contour of the support column projected onto the substrate is rectangular, and it has a first side and a second side that are connected to each other.

18. The display panel according to claim 17, characterized in that, The extension lines of the first side of at least two adjacent support columns along the first direction within the support assembly intersect, such that at least two adjacent support columns are arranged in a figure-eight shape. Alternatively, the first sides of at least two adjacent support columns within the support assembly along the first direction are parallel, and the first sides intersect the first direction; Alternatively, the first sides of at least two adjacent support columns within the support assembly along the first direction are parallel, and the first sides are parallel to the first direction.

19. The display panel according to claim 17, characterized in that, The angle between the first side and the first direction is smaller than the angle between the second side and the first direction, and the length of the first side is greater than the length of the second side.

20. The display panel according to claim 17, characterized in that, The ratio of the first side to the second side of at least one of the support columns is 1.3 to 1.

9.

21. The display panel according to claim 20, characterized in that, In the direction from the center to the edge of the display panel, the absolute value of the difference between the ratio of the first side and the second side and a preset ratio gradually decreases in at least a portion of the area, where the preset ratio is 1.

6.

22. The display panel according to claim 20, characterized in that, The length of the second side is greater than 11 μm and less than or equal to 20 μm; And / or, within the support assembly, the sum of the lengths of the first sides of the plurality of support columns is 30μm~36μm.

23. The display panel according to claim 20, characterized in that, The display panel includes a display area, which 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 in the direction from its edge to its center. In the support assembly within the third display area, the ratio of the first side and the second side of the support column is 1.3 to 1.

9.

24. The display panel according to claim 23, characterized in that, In the direction from the second display area to the third display area, in the support assembly within the second display area, the absolute value of the difference between the ratio of the first side and the second side of the support column and a preset ratio gradually decreases.

25. The display panel according to claim 23, characterized in that, In the direction from the first display area to the third display area, in the support assembly within the first display area, the absolute value of the difference between the ratio of the first side and the second side of the support column and a preset ratio gradually decreases.

26. The display panel according to claim 23, characterized in that, 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.

27. The display panel according to claim 1, characterized in that, In the support assembly, among at least two adjacent support columns, one of which has a recessed surface facing the other to form a groove, and the other has a protruding portion to form a protrusion, with the protrusion located in the groove.

28. The display panel according to claim 27, characterized in that, At least part of the support assembly further includes a support column, and the total size of the support assembly including two or more spaced-apart support columns is the same as the total size of the support assembly including one support column.

29. A display device, characterized in that, Includes the display panel as described in any one of claims 1-28.

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