Display panel and display device

Abstract

The present application discloses a display panel and a display device, wherein the display panel includes a first substrate, a second substrate and a support column, wherein the first substrate includes a central area and at least one peripheral area around the central area; the second substrate is arranged opposite to the first substrate; the support column is arranged between the first substrate and the second substrate, and is used to support the first substrate and the second substrate, and the support column includes an end face facing one side of the first substrate, the support column in the central area has a first area density, which is the ratio of the sum of the end face areas of all the support columns in the central area to the total area of ​​the central area, and the support column in the peripheral area has a second area density, which is the ratio of the sum of the end face areas of all the support columns in the peripheral area to the total area of ​​the peripheral area, and the first area density is greater than the second area density. The display panel provided by the present application can improve the dark state uniformity of the display panel, thereby improving the display quality of the display panel.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and in particular, relates to a display panel and a display device. Background Art

[0002] With the development of display technology, the display quality requirements of display devices are getting higher and higher. In existing display devices, in order to obtain a narrow-frame display effect, the interference in the edge area of ​​the display panel is strengthened. The interference in the edge area of ​​the display panel includes but is not limited to the interference caused by the bowl-shaped backlight module. After the display panel is pressed, the edge area is subjected to greater interference, resulting in a greater extrusion stress phase difference than the middle area. The difference in the extrusion stress phase difference between the middle area and the edge area easily leads to uneven stress in various parts of the display panel, and light leakage is prone to occur in the edge area. That is, the display panel has the problem of poor uniformity of dark-state brightness, which seriously affects the user experience. Summary of the invention

[0003] Embodiments of the present application provide a display panel and a display device, which can improve the dark state uniformity of the display panel, thereby improving the display quality of the display panel.

[0004] An embodiment of a first aspect of the embodiments of the present application provides a display panel, including:

[0005] A first substrate including a central region and at least one peripheral region located around the central region;

[0006] a second substrate, arranged opposite to the first substrate;

[0007] A support column is arranged between the first substrate and the second substrate, and is used to support the first substrate and the second substrate. The support column includes an end face facing the first substrate. The support column in the central area has a first area density, and the first area density is the ratio of the sum of the end face areas of all the support columns in the central area to the total area of ​​the central area. The support column in the peripheral area has a second area density, and the second area density is the ratio of the sum of the end face areas of all the support columns in the peripheral area to the total area of ​​the peripheral area. The first area density is greater than the second area density.

[0008] An embodiment of the second aspect of the present application further provides a display device, comprising any display panel provided by the first aspect of the present application.

[0009] The display panel provided in the present application includes a support column arranged between a first substrate and a second substrate, and the support column is used to support the first substrate and the second substrate to improve the uniformity of the thickness of the display panel. The support column includes an end face facing the first substrate, and the support column in the central area has a first area density, which is the ratio of the sum of the end face areas of all the support columns in the central area to the total area of ​​the central area, and the support column in the peripheral area has a second area density, which is the ratio of the sum of the end face areas of all the support columns in the peripheral area to the total area of ​​the peripheral area, and the first area density is greater than the second area density. According to the stress phase difference formula: R = S·t·Δσ, where t is glass thickness, S is glass photoelastic coefficient, Δσ is glass stress; and Δσ = μ·N·K·ΔL / L, where μ is the friction coefficient between the support column and the first substrate, N is the contact area density between the support column and the first substrate, ΔL is the deformation of the support column, L is the original height of the support column, and K is the Young's modulus of the support column. It can be seen that after the first area density is set to be greater than the second area density, that is, after the second area density is reduced, the above-mentioned N is reduced, thereby reducing the stress phase difference R in the peripheral area between the first substrate and the second substrate, thereby improving the stress uniformity between the peripheral area and the central area, improving the dark state light leakage problem of the display panel, and improving the dark state uniformity of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0011] Figure 1 is a structural schematic diagram of a display panel provided in an embodiment of the present application;

[0012] Figure 2 yes Figure 1 Section along P-P';

[0013] Figure 3 is a schematic structural diagram of a first substrate in a display panel provided in an embodiment of the present application;

[0014] Figure 4 is a schematic structural diagram of a second substrate in a display panel provided in an embodiment of the present application;

[0015] Figure 5 is a reference diagram of a display panel in use provided by an embodiment of the present application;

[0016] Figure 6is a schematic structural diagram of a second substrate in another display panel provided in an embodiment of the present application;

[0017] Figure 7 is a schematic structural diagram of a second substrate in another display panel provided in an embodiment of the present application;

[0018] Figure 8 is a schematic structural diagram of a second substrate in another display panel provided in an embodiment of the present application;

[0019] Fig. 9 is a schematic structural diagram of a second substrate in another display panel provided in an embodiment of the present application;

[0020] Fig.10 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0021] Fig.11 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0022] Fig.12 Another structural diagram of a second substrate in a display panel provided by an embodiment of the present application;

[0023] Fig.13 The present invention provides a schematic diagram of the structure of a display device.

[0024] In the attached figure:

[0025] 1-display panel; 10-first substrate; A1-central area; A2-peripheral area; A0-peripheral partition; A3-first partition; A4-second partition; 11-second substrate; 12-support column; 121-first end face; 122-second end face; 123-third end face; L1-long side; A5-peripheral sub-area; 13-side; a-first angle; 14-backlight module; 2-display device. DETAILED DESCRIPTION

[0026] The features and exemplary embodiments of various aspects of the application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the application. However, it is obvious to those skilled in the art that the application can be implemented when some details in these specific details are not needed. The following description of the embodiments is only to provide a better understanding of the application by illustrating the example of the application.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] The inventors have found through research that the main reason for the poor dark state uniformity capability in existing display panels is that the display panels are prone to light leakage in the dark state, which makes the brightness of the light leakage area significantly brighter than other areas. Among the reasons for the dark state light leakage problem of the display panel, the main reason is the uneven stress in various parts of the display panel caused by the existence of the extrusion stress phase difference in the display panel. The source of the extrusion stress phase difference in the display panel is mainly: the friction between the substrate of the liquid crystal display panel and the support column is large, thereby forming the substrate extrusion stress phase difference of the display panel. The poor dark state uniformity capability of the display panel seriously affects the user experience. Based on the research on the above problems, the inventors provide a display panel and a display device to improve the dark state uniformity of the display panel, thereby improving the display quality of the display panel.

[0029] In order to better understand this application, Figures 1 to 13 The display panel and the display device according to the embodiments of the present application are described in detail.

[0030] See also Figures 1 to 4 , Figure 1 is a structural schematic diagram of a display panel provided in an embodiment of the present application; Figure 2 yes Figure 1 Section along P-P'; Figure 3 is a schematic structural diagram of a first substrate in a display panel provided in an embodiment of the present application; Figure 4 It is a schematic diagram of the structure of a second substrate in a display panel provided in an embodiment of the present application.

[0031] The embodiment of the present application provides a display panel 1, including a first substrate 10, a second substrate 11 and a support column 12. The first substrate 10 includes a central area A1 and at least one peripheral area A2 located around the central area A1. The second substrate 11 is arranged opposite to the first substrate 10. The support column 12 is arranged between the first substrate 10 and the second substrate 11, and is used to support the first substrate 10 and the second substrate 11. The support column 12 includes an end face facing the side of the first substrate 10. The support column 12 in the central area A1 has a first area density, which is the ratio of the sum of the end face areas of all the support columns 12 in the central area A1 to the total area of ​​the central area A1. The support column 12 in the peripheral area A2 has a second area density, which is the ratio of the sum of the end face areas of all the support columns 12 in the peripheral area A2 to the total area of ​​the peripheral area A2. The first area density is greater than the second area density.

[0032] In the display panel 1 provided in the present application, Figure 2 As shown, the first substrate 10 may be an array substrate, and the second substrate 11 may be a color filter substrate, or the first substrate 10 may be a color filter substrate, and the second substrate 11 may be an array substrate, which is not particularly limited in the present application.

[0033] In the display panel 1 provided in the present application, the first substrate 10 includes a central area A1 and at least one peripheral area A2 located around the central area A1. The peripheral area A2 can be arranged to surround and enclose the central area A1, or each peripheral area A2 can be arranged around a portion of the central area A1, which is not particularly limited in the present application.

[0034] The display panel 1 provided in the present application includes a support column 12 disposed between a first substrate 10 and a second substrate 11, and the support column 12 is used to support the first substrate 10 and the second substrate 11 to improve the uniformity of the thickness of the display panel 1. The support column 12 includes an end face facing the first substrate 10, and the support column 12 in the central area A1 has a first area density, which is the ratio of the sum of the end face areas of all the support columns 12 in the central area A1 to the total area of ​​the central area A1, and the support column 12 in the peripheral area A2 has a second area density, which is the ratio of the sum of the end face areas of all the support columns 12 in the peripheral area A2 to the total area of ​​the peripheral area A2, and the first area density is greater than the second area density. According to the stress phase difference formula: R=S·t·Δσ, where t is glass thickness, S is glass photoelastic coefficient, Δσ is glass stress; and Δσ=μ·N·K·ΔL / L, where μ is the friction coefficient between the support column 12 and the first substrate 10, N is the contact area density between the support column 12 and the first substrate 10, ΔL is the deformation of the support column 12, L is the original height of the support column 12, and K is the Young's modulus of the support column 12. It can be seen that after the first area density is set to be greater than the second area density, that is, after the second area density is reduced, the above-mentioned N is reduced, thereby reducing the stress phase difference R of the peripheral area A2 in the first substrate 10 and the second substrate 11, thereby improving the stress uniformity between the peripheral area A2 and the central area A1, improving the dark state light leakage problem of the display panel 1, and improving the dark state uniformity of the display panel 1.

[0035] like Figure 5 As shown, Figure 5 This is a reference diagram of the use status of a display panel provided in an embodiment of the present application. A backlight module 14 is provided on the side of the display panel 1 away from the light emitting surface. The backlight module 14 is often designed in a bowl shape. The edge of the bowl-shaped backlight module 14 is easy to squeeze the peripheral area A2 after contacting the peripheral area A2, so that the support column 12 in the peripheral area A2 cannot rebound as before, thereby causing an extrusion stress phase difference in the peripheral area A2. By setting the first area density to be greater than the second area density, that is, reducing the second area density, the friction between the support column 12 and the peripheral area A2 can be reduced, thereby improving the stress uniformity of each part of the display panel 1 and improving the dark state light leakage problem.

[0036] In a possible implementation, Figure 4 As shown, the shapes and sizes of the support columns 12 in the central area A1 and the peripheral area A2 are the same, the ratio of the number of support columns 12 in the central area A1 to the total area of ​​the central area A1 is a first number density, and the ratio of the number of support columns 12 in the peripheral area A2 to the total area of ​​the peripheral area A2 is a second number density, and the second number density is less than the first number density.

[0037] In the above embodiment, the shape and size of the support pillars 12 in the central area A1 and the peripheral area A2 are the same, that is, the display panel 1 includes only one type of support pillars 12. In the above embodiment, the friction force of the support pillars 12 in the peripheral area A2 on the first substrate 10 is reduced by reducing the number density of the support pillars 12 in the peripheral area A2, thereby reducing the stress phase difference in the peripheral area A2.

[0038] In a feasible implementation manner, the ratio of the second number density to the first number density is A, and 0.25≤A≤0.5.

[0039] By setting the ratio of the first number density to the second number density to 0.25-0.5, the friction force of the support column 12 on the peripheral area A2 can be reduced while ensuring the supporting effect of the central area A1 and the peripheral area A2, thereby reducing the stress phase difference of the peripheral area A2 which is easily squeezed and deformed, and improving the surface uniformity of the display panel 1.

[0040] In a possible implementation, Figure 6 As shown, the peripheral area A2 includes multiple peripheral partitions A0, and the multiple peripheral partitions A0 are nested in sequence along the direction away from the central area A1. The ratio of the number of support columns 12 in each peripheral partition A0 to the total area of ​​the peripheral partition A0 is a third number density. Along the direction away from the central area A1, the third number density of the multiple peripheral partitions A0 decreases in sequence.

[0041] In the above embodiment, the display panel 1 may be a regular shape, such as a rectangle, a circle, etc.; the peripheral area A2 includes a plurality of peripheral partitions, and the plurality of peripheral partitions are nested in sequence in the direction away from the central area A1. The peripheral partition A0 farthest from the central area A1 is subjected to the greatest interference effect of the external extrusion stress and is most susceptible to light leakage. The greater the interference effect of the external extrusion stress, the greater the friction force of the support column 12 on the peripheral partition, thereby making the extrusion stress phase difference of the peripheral partition A0 greater. According to the law that each peripheral partition A0 is generally affected by the interference effect, the third number density of each peripheral partition A0 is set to decrease in sequence in the direction away from the central area A1, so that the extrusion stress phase difference of each peripheral partition A0 can be similar, so as to reduce the friction force of the peripheral area while ensuring the support strength in the display panel, so as to improve the dark state uniformity of the display panel 1.

[0042] In a possible implementation, Figure 6 As shown, Figure 6It is a structural schematic diagram of the second substrate in another display panel provided in an embodiment of the present application; the multiple peripheral partitions A0 include a first partition A3 and a second partition A4, the second partition A4 is located on the side of the first partition A3 away from the central area A1, the ratio of the third number density of the first partition A3 to the first number density of the central area A1 is B, 0.5≤B≤1; the ratio of the third number density of the second partition A4 to the first number density of the central area A1 is C, 0.25≤C≤0.5.

[0043] In the above embodiment, the third number density of each peripheral partition A0 may gradually decrease in the direction away from the central area A1. When the multiple peripheral partitions A0 include a first partition A3 close to the central area A1 and a second partition A4 away from the central area A1, the first partition A3 may decrease by 50%-0, and the second partition A4 may decrease by 25%-50%, so as to avoid a cliff-like drop, so as to ensure a smooth transition of the supporting force in the central area A1 and each peripheral partition A0. At the same time, under the premise of ensuring the supporting effect, the number of supporting columns 12 of each peripheral partition A0 is appropriately reduced according to the position of each peripheral partition A0, thereby reducing the friction between the peripheral partition A0 and the supporting column 12, thereby improving the influence of the friction of the supporting column 12 on the peripheral partition A0, and improving the uniformity of the stress phase difference of the display panel 1.

[0044] In another possible implementation, if Figure 7 As shown, Figure 7 It is a schematic diagram of the structure of the second substrate in another display panel provided in an embodiment of the present application; the friction force of the support column 12 on the peripheral area A2 can be reduced by reducing the end face area of ​​the support column 12, wherein the end face area of ​​the support column 12 in the peripheral area A2 is smaller than the end face area of ​​the support column 12 in the central area A1.

[0045] In the above embodiment, the first number density of the central area A1 can be ensured to be the same as the second number density of the peripheral area A2, that is, without changing the second number density of the peripheral area A2, the total friction force of the support column 12 on the peripheral area A2 is reduced by reducing the end surface area of ​​the support column 12 in the peripheral area A2. In this embodiment, the support points of each support column 12 in the peripheral area A2 can be ensured to remain unchanged, the position distribution of the support column 12 is maintained, and it is helpful to ensure the support effect.

[0046] Alternatively, the second number density of the peripheral area A2 may be simultaneously lowered to further reduce the friction force of the support pillars 12 on the peripheral area A2.

[0047] In a feasible embodiment, the peripheral area A2 includes multiple peripheral partitions A0, and the multiple peripheral partitions A0 are nested in sequence along the direction away from the central area A1. Along the direction away from the central area A1, the end surface areas of the support columns 12 in the multiple peripheral partitions A0 decrease in sequence.

[0048] In the above embodiment, the display panel 1 may be a regular shape, such as a rectangle, a circle, etc.; the peripheral area A2 includes a plurality of peripheral partitions A0, and the plurality of peripheral partitions A0 are nested in sequence in the direction away from the central area A1. The peripheral partition A0 farthest from the central area A1 is subject to the greatest interference from the external extrusion stress and is most susceptible to light leakage. The greater the interference from the external extrusion stress, the greater the friction of the support column 12 on the peripheral partition, thereby making the extrusion stress phase difference of the peripheral partition A0 greater. According to the rule that each peripheral partition A0 is generally affected by the interference effect, the end surface area of ​​each peripheral partition A0 is set to decrease in sequence in the direction away from the central area A1, so that the extrusion stress phase difference of each peripheral partition A0 can be similar, so as to improve the dark state uniformity of the display panel 1.

[0049] In a possible implementation, Figure 8 As shown, Figure 8 It is a structural schematic diagram of the second substrate in another display panel provided in an embodiment of the present application; multiple peripheral partitions A0 include a first partition A3 and a second partition A4, the second partition A4 is located on the side of the first partition A3 away from the central area A1, the end face of the support column 12 in the central area A1 is a first end face 121, the end face of the support column 12 in the first partition A3 is a second end face 122, the end face of the support column 12 in the second partition A4 is a third end face 123, and the second end face 122 and the third end face 123 are connected to the first end face 121.

[0050] In the above embodiment, the areas of the first end face 121, the second end face 122, and the third end face 123 gradually decrease, and the second end face 122 and the third end face 123 are inscribed in the first end face 121, so as to ensure the shape distribution of the second end face 122 and the third end face 123, ensure that each end face is limited within the range of the first end face 121, avoid the appearance of overly extreme shapes, and ensure as stable support as possible while reducing the end face area.

[0051] In a feasible implementation manner, the shape of the first end surface 121 is circular or elliptical, the shape of the second end surface 122 is polygonal, and the shape of the third end surface 123 is triangular or rhombus.

[0052] In the above embodiment, a feasible end face shape combination is: the shape of the first end face 121 is a circle, the shape of the second end face 122 is a square, and the shape of the third end face 123 is an equilateral triangle. By using regular shapes such as circles, squares, triangles, etc., the support center of each support column 12 can coincide with the center of the end face shape, thereby improving the stability of the support.

[0053] Specifically, the shapes of the first end face 121 , the second end face 122 , and the third end face 123 may also be other shapes, which are not particularly limited in the present application.

[0054] In a possible implementation, Figure 7 As shown, when the display panel 1 is rectangular, the display panel 1 includes a long side L1, the length of the long side L1 is L1, the central area A1 is a rectangle, the peripheral area A2 is a rectangular ring surrounding the central area A1, and the minimum distance between the edge of the peripheral area A2 and the edge of the central area A1 is L2, 0.05*L1≤L2≤0.2*L1.

[0055] In the above embodiment, the minimum distance between the edge of the peripheral area A2 and the edge of the central area A1 is set in the range of 0.05*L1 to 0.2*L1, so that the support column 12 with a larger area density can be set while ensuring that there is enough space in the central area A1 to ensure the support effect of the central area A1 of the display panel 1, while taking into account the distribution range of the peripheral area A2, so that the distribution range of the peripheral area A2 that is prone to produce an extrusion stress phase difference will not be too large to cause insufficient support of the display panel 1, and will not be too small to cause an extrusion stress phase difference in the display panel 1, thereby effectively reducing the probability of poor display and light leakage problems in the display panel 1. That is, the above embodiment achieves a balance between support for the display panel 1 and poor display and light leakage problems, which helps to improve the overall performance of the display panel 1.

[0056] In the above embodiment, when the display panel 1 is rectangular, the peripheral area A2 may be a rectangular ring structure. In this case, the peripheral area A2 is in a regular shape, which is easy to divide during the preparation process, and the preparation process is simpler.

[0057] In the above embodiment, the peripheral area A2 may also be an irregular shape. In this case, it is only necessary to ensure that the minimum distance between the edge of the peripheral area A2 and the edge of the central area A1 is L2, 0.05*L1≤L2≤0.2*L1, that is, L2 may fluctuate.

[0058] In a possible implementation, Fig. 9 As shown, Fig. 9It is a structural schematic diagram of the second substrate in another display panel provided in an embodiment of the present application; when the peripheral area A2 includes the first partition A3 and the second partition A4, and the second partition A4 is located on the side of the first partition A3 away from the central area A1, the first partition A3 is a rectangular ring surrounding the central area A1, and the second partition A4 is a rectangular ring surrounding the first partition A3, and the minimum distance between the edge of the first partition A3 toward the second partition A4 and the edge of the central area A1 is L3, 0.1*L1≤L3≤0.2*L1; the minimum distance between the edge of the second partition A4 away from the first partition A3 and the edge of the first partition A3 away from the central area A1 is L4, 0.05*L1≤L4≤0.1*L1.

[0059] In the above embodiment, the peripheral area A2 includes a first partition A3 and a second partition A4. Both the first partition A3 and the second partition A4 are rectangular rings, which are easy to divide during the preparation process, and the preparation process is simpler.

[0060] In the above embodiment, the peripheral area A2 is divided into a first partition A3 and a second partition A4. The first partition A3 is located between the second partition A4 and the central area A1 and is a transition area. The area density of the support columns 12 in the first partition A3 is greater than the area density of the support columns 12 in the second partition A4, and less than the area density in the central area A1, thereby achieving a transition in area density. By further dividing the peripheral area A2, the area density of the support columns 12 in the peripheral area A2 gradually decreases, thereby avoiding a cliff-like drop that causes a sudden change at the junction of the central area A1 and the peripheral area A2. In the display panel 1, the position close to the edge area is more susceptible to interference from the extrusion stress than the position far from the edge area. Friction is easily generated between the interfered area and the support column 12, resulting in an extrusion stress phase difference, thereby affecting the dark state uniformity of the display panel. Since the second partition A4 is closer to the edge of the display panel than the first partition A3, the second partition A4 in the display panel 1 is most affected by the friction of the support columns 12. Therefore, this area is concentrated to significantly reduce the area density of the support columns 12, which can deeply improve the light leakage problem of the second partition A4. At the same time, the area density of the support columns 12 in the first partition A3 is reduced less than that in the central area A1, which can achieve a balance between support effect and transition effect.

[0061] In a possible implementation, Fig.10 As shown, Fig.10It is a structural schematic diagram of another display panel provided in an embodiment of the present application; when the display panel 1 is a special-shaped display panel 1 having an irregular polygonal shape, the peripheral area A2 also includes a plurality of peripheral sub-areas A5, and the peripheral sub-areas A5 are arranged in a direction around the central area A1, and the peripheral sub-areas A5 include at least two side edges 13 that coincide with the edges of the peripheral area A2, and a first angle a is formed between the two side edges 13, and the first angle a is an acute angle or an obtuse angle.

[0062] When the first angle a in the peripheral sub-area A5 is an acute angle, the ratio of the end surface area of ​​the support pillar 12 in the peripheral sub-area A5 to the total area of ​​the peripheral sub-area A5 is a third area density, and the ratio of the third area density to the first area density is D. When the first angle a in the peripheral sub-area A5 is an obtuse angle, the ratio of the end surface area of ​​the support pillar 12 in the peripheral sub-area A5 to the total area of ​​the peripheral sub-area A5 is a fourth area density, and the ratio of the fourth area density to the first area density is E. Wherein, 0<D<E<1.

[0063] In the above embodiment, the display panel 1 is a special-shaped display panel 1, and there are peripheral sub-area A5 regions with an acute first angle a and peripheral sub-area A5 with an obtuse first angle a in the edge of the special-shaped display panel 1. The peripheral sub-area A5 with an acute angle is more prone to interference, and the acute angle position itself is relatively fragile and easily lifted and damaged, so a smaller third area density can be used than the obtuse angle region. The obtuse angle region is located in the peripheral area A2 and is also susceptible to the squeezing of the bowl-shaped backlight source, etc. Therefore, the fourth area density of the support column 12 in the obtuse angle region is set to be less than the first area density of the central area A1, and because the region is less adversely affected than the peripheral sub-area A5 with an acute angle, the fourth area density can be set to be greater than the third area density, thereby achieving a balance between the support effect.

[0064] In a possible implementation, Fig.11 As shown, Fig.11 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application; the display panel 1 can also be as follows Fig.11 The special-shaped display panel 1 shown is formed by a straight side and an arc-shaped side intersecting the straight side.

[0065] In a possible implementation, Fig.12 As shown, Fig.12Another structural schematic diagram of the second substrate in the display panel is provided in an embodiment of the present application; the end face area of ​​the support column 12 in the peripheral sub-area A5 is smaller than the end face area of ​​the support column 12 in the central area A1, and / or the shape and size of the support columns 12 in the central area A1 and the peripheral sub-area A5 are the same, the ratio of the number of support columns 12 in the peripheral sub-area A5 to the total area of ​​the peripheral sub-area A5 is a fourth number density, the ratio of the number of support columns 12 in the central area A1 to the total area of ​​the central area A1 is the first number density, and the fourth number density is less than the first number density.

[0066] In the above embodiments, the area density of the support columns 12 in the peripheral sub-area A5 can be reduced by reducing the number of support columns 12 in the peripheral sub-area A5 while ensuring that the support columns 12 in the display panel 1 are of the same specifications, and / or reducing the end surface area of ​​the support columns 12 in the peripheral sub-area A5 to reduce the area density of the support columns 12 in the peripheral sub-area A5, and this application does not make any special restrictions. The above embodiments can all achieve a reduction in the area density of the support columns 12 in the peripheral sub-area A5, thereby reducing the friction between the support columns 12 and the peripheral sub-area A5, improving the surface uniformity, and reducing the probability of poor display problems around the display panel 1.

[0067] The present application also provides a display device 2, such as Fig.13 As shown, Fig.13 It is a structural schematic diagram of a display device provided in an embodiment of the present application, and the display device 2 includes any one of the display panels 1 provided in the above-mentioned embodiments of the present application.

[0068] The display device 2 can be a car visual rearview mirror, a liquid crystal instrument panel, a central control display screen, etc., which is not particularly limited in this application. The probability of light leakage at the edge of the display device 2 and poor display is greatly reduced, which effectively improves the user experience.

[0069] According to the embodiments of the present application as above, these embodiments do not describe all the details in detail, nor do they limit the invention to specific embodiments. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of the present application and the modifications based on the present application. The present application is only limited by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized in that: include: A first substrate including a central region and at least one peripheral region located around the central region; a second substrate, arranged opposite to the first substrate; A support column, disposed between the first substrate and the second substrate, for supporting the first substrate and the second substrate, the support column comprising an end face facing the first substrate, the support column in the central region having a first area density, the first area density being the ratio of the sum of the end face areas of all the support columns in the central region to the total area of ​​the central region, the support column in the peripheral region having a second area density, the second area density being the ratio of the sum of the end face areas of all the support columns in the peripheral region to the total area of ​​the peripheral region, the first area density being greater than the second area density; The peripheral area includes a plurality of peripheral partitions, the plurality of peripheral partitions include a first partition and a second partition, the second partition is located on a side of the first partition away from the central area, the end face of the support column in the central area is a first end face, the end face of the support column in the first partition is a second end face, the end face of the support column in the second partition is a third end face, the second end face and the third end face are inscribed in the first end face, and the areas of the first end face, the second end face and the third end face gradually decrease; The shape of the first end surface is circular or elliptical, the shape of the second end surface is polygonal, and the shape of the third end surface is triangular or rhombus.

2. The display panel according to claim 1, characterized in that: The ratio of the number of the support columns in the central area to the total area of ​​the central area is a first number density, and the ratio of the number of the support columns in the peripheral area to the total area of ​​the peripheral area is a second number density, which is smaller than the first number density.

3. The display panel according to claim 2, characterized in that: A ratio of the second number density to the first number density is A, 0.25≤A≤0.

5.

4. The display panel according to claim 2, characterized in that: The plurality of peripheral partitions are nested in sequence in a direction away from the central area, the ratio of the number of support columns in each peripheral partition to the total area of ​​the peripheral partition is a third number density, and the third number density of the plurality of peripheral partitions decreases in sequence in a direction away from the central area.

5. The display panel according to claim 4, characterized in that: The second partition is located on a side of the first partition away from the central area, and the ratio of the third number density of the first partition to the first number density of the central area is B, 0.5≤B≤1; the ratio of the third number density of the second partition to the first number density of the central area is C, 0.25≤C≤0.

5.

6. The display panel according to claim 1, characterized in that: The end surface area of ​​the support column in the peripheral area is smaller than the end surface area of ​​the support column in the central area.

7. The display panel according to claim 6, characterized in that: The plurality of peripheral partitions are nested in sequence in a direction away from the central region, and the end surface areas of the support columns in the plurality of peripheral partitions decrease in sequence in a direction away from the central region.

8. The display panel according to claim 1, characterized in that: When the display panel is rectangular, the display panel includes a long side, the length of the long side is L1, the central area is rectangular, the peripheral area is a rectangular ring surrounding the central area, and the minimum distance between the edge of the peripheral area and the edge of the central area is L2, 0.05*L1≤L2≤0.2*L1; When the peripheral area includes a first partition and a second partition, and the second partition is located on a side of the first partition away from the central area, the first partition is a rectangular ring surrounding the central area, and the second partition is a rectangular ring surrounding the first partition, and the minimum distance between the edge of the first partition toward the second partition and the edge of the central area is L3, 0.1*L1≤L3≤0.2*L1; the minimum distance between the edge of the second partition away from the first partition and the edge of the first partition away from the central area is L4, 0.05*L1≤L4≤0.1*L1.

9. The display panel according to claim 1, characterized in that: When the display panel is a special-shaped display panel with an irregular polygonal shape, the peripheral area further includes a plurality of peripheral sub-areas, the peripheral sub-areas are arranged in a direction surrounding the central area, the peripheral sub-areas include at least two side edges that coincide with the edge of the peripheral area, and a first angle is formed between the two side edges, and the first angle is an acute angle or an obtuse angle; When the first angle in the peripheral sub-region is an acute angle, the ratio of the end surface area of ​​the support column in the peripheral sub-region to the total area of ​​the peripheral sub-region is a third area density, and the ratio of the third area density to the first area density is D; When the first angle in the peripheral sub-region is an obtuse angle, the ratio of the end surface area of ​​the support column in the peripheral sub-region to the total area of ​​the peripheral sub-region is a fourth area density, and the ratio of the fourth area density to the first area density is E; Among them, 0<D<E<1.

10. The display panel according to claim 9, characterized in that: The end face area of ​​the support column in the peripheral sub-region is smaller than the end face area of ​​the support column in the central region, and / or the shape and size of the support columns in the central region and the peripheral sub-region are the same, the ratio of the number of support columns in the peripheral sub-region to the total area of ​​the peripheral sub-region is a fourth number density, the ratio of the number of support columns in the central region to the total area of ​​the central region is a first number density, and the fourth number density is smaller than the first number density.

11. A display device, characterized in that: Comprising the display panel as described in any one of claims 1-10.

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