Display panel and display device

Abstract

A display panel disclosed in the present application comprises a bonding area and a plurality of preset bonding terminals, wherein the bonding area comprises a first edge and a second edge, the first edge being arranged in a first direction, and a plurality of edge distances being provided between the first edge and the second edge; and the plurality of preset bonding terminals are arranged in the first direction, a first size of each preset bonding terminal being negatively correlated with the edge distance passing through the center of the preset bonding terminal, and a second size of the preset bonding terminal being positively correlated with the edge distance passing through the center of the preset bonding terminal.

Description

Display panel and display device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202311196275.2, filed on September 15, 2023, entitled “Display Panel and Display Device,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of display technology, and in particular relates to a display panel and a display device. Background Art

[0004] With the development of display technology, the requirements for the appearance of display devices are getting higher and higher. Among them, the size of the border of the display device has a relatively large impact on the appearance of the display device. A larger border will make the display device less beautiful and affect the user experience.

[0005] Summary of the Invention

[0006] Embodiments of the present application provide a display panel and a display device, which can reduce the border of the display panel, thereby improving user experience.

[0007] A first aspect of the present application provides a display panel, comprising a display area and a non-display area, wherein the non-display area surrounds at least a portion of the display area; the display panel comprises:

[0008] a binding area, the binding area being located in the non-display area, the binding area including a first edge and a second edge, the first edge being arranged along a first direction, the second edge being a portion of an edge of the display area close to the first edge, and a plurality of margins being defined between the first edge and the second edge in a direction perpendicular to the first direction;

[0009] Multiple preset binding terminals are located in the binding area and arranged along the first direction. The maximum dimension of the preset binding terminal along the first direction is a first dimension. Among the multiple preset binding terminals, the first dimension is negatively correlated with the margin passing through the center of the preset binding terminal. The maximum dimension of the preset binding terminal along the direction perpendicular to the first direction is a second dimension. The second dimension is positively correlated with the margin passing through the center of the preset binding terminal.

[0010] An embodiment of the second aspect of the present application further provides a display device, comprising any one of the display panels provided in the first aspect of the present application.

[0011] In the display panel provided by the present application, the binding area is located in the non-display area, and the binding area includes a first edge and a second edge. The first edge is arranged along the first direction, and there are multiple margins between the first edge and the second edge in the direction perpendicular to the first direction. The second edge is not parallel to the first edge. Specifically, the second edge may be a non-linear irregular shape. The values ​​of the above-mentioned margins are different, so that the space used to accommodate the preset binding terminals is uneven. Multiple preset binding terminals are located in the binding area and arranged along the first direction. The width of the frame is usually the value of the margin. Arranging multiple preset binding terminals to be arranged along the first direction can make the projections of the binding terminals perpendicular to the first direction non-overlapping, thereby reducing the margin value. The maximum dimension of the preset binding terminal along the first direction is the first dimension. Among the multiple preset binding terminals, the first dimension is negatively correlated with the margin passing through the center of the preset binding terminal. The maximum dimension of the preset binding terminal along the direction perpendicular to the first direction is the second dimension. The second dimension is positively correlated with the margin passing through the center of the preset binding terminal. That is, when the margin passing through the center of the preset binding terminal is larger, the first size of the preset binding terminal is larger and the second size is smaller; when the margin passing through the center of the preset binding terminal is smaller, the first size of the preset binding terminal is smaller and the second size is larger. In this way, the space of the binding area can be fully utilized under the premise of ensuring the binding area of ​​each preset binding terminal, and the area of ​​the area in the binding area where the preset binding terminal is not set is reduced, thereby achieving the effect of a narrow border, and at the same time ensuring the area of ​​the preset binding terminal, that is, ensuring the binding yield, and achieving a balance between a narrow border and a binding yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments of the present application. 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.

[0013] FIG1 is a schematic structural diagram of a display panel provided in an embodiment of the present application;

[0014] FIG2 is a schematic structural diagram of a binding area of ​​a display panel provided in an embodiment of the present application;

[0015] FIG3 is a schematic structural diagram of another display panel provided in an embodiment of the present application;

[0016] FIG4 is a schematic structural diagram of another display panel provided in an embodiment of the present application;

[0017] FIG5 is a cross-sectional view taken along line N-N' in FIG1;

[0018] FIG6 is a schematic structural diagram of a binding area of ​​another display panel provided in an embodiment of the present application;

[0019] FIG7 is a schematic structural diagram of a binding area of ​​another display panel provided in an embodiment of the present application;

[0020] FIG8 is an enlarged view of the Q region in FIG7 ;

[0021] FIG9 is a schematic structural diagram of a binding area of ​​another display panel provided in an embodiment of the present application;

[0022] FIG10 is an enlarged view of the P region in FIG9 ;

[0023] FIG11 is a schematic structural diagram of another display panel provided in an embodiment of the present application;

[0024] FIG12 is a schematic structural diagram of the binding area in FIG11;

[0025] FIG13 is a schematic structural diagram of a display device provided in an embodiment of the present application;

[0026] FIG. 14 is an assembly diagram of the E region in FIG. 13 . DETAILED DESCRIPTION

[0027] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating the examples of the present application.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0029] The inventors have found through research that with the development of display technology, the requirements for the appearance of display devices are getting higher and higher. The size of the frame of the display device has a relatively large impact on the appearance of the display device, especially on the aesthetics of wearable display devices. For example, wearable display devices such as bracelets and watches have a relatively small display area, and the wearing effect has relatively high requirements on the appearance. Therefore, the size of the frame has a relatively large impact on the appearance and user experience of the product. However, the frame includes a binding area for setting the preset binding terminals for binding the driving circuit and / or touch layer in the array substrate to the driving chip. Due to the process limit of the binding frame, it is difficult to further compress the frame, which is a huge technical bottleneck for current design and process. Based on the research on the above problems, the inventors provide a display panel and a display device to reduce the frame of the display panel and the display device, thereby improving the user experience.

[0030] In order to better understand the present application, the display panel and the display device according to the embodiments of the present application are described in detail below with reference to Figures 1 to 14.

[0031] Referring to Figures 1 and 2 , an embodiment of the present application provides a display panel 1 comprising a display area AA and a non-display area NA, wherein the non-display area NA surrounds at least a portion of the display area AA. The display panel 1 includes a binding area B and a plurality of predetermined binding terminals 11. The binding area B is located in the non-display area NA and includes a first edge L1 and a second edge L2. The first edge L1 is arranged along a first direction x, and the second edge L2 is a portion of the edge of the display area AA adjacent to the first edge L1. Along a direction perpendicular to the first direction, a plurality of margins d are defined between the first edge L1 and the second edge L2. The plurality of predetermined binding terminals 11 are located within the binding area B and arranged along the first direction x. The maximum dimension of the predetermined binding terminals 11 along the first direction x is a first dimension d1. For the plurality of predetermined binding terminals 11, the first dimension d1 is negatively correlated with the margin d passing through the center of the predetermined binding terminal 11. The maximum dimension of the predetermined binding terminal 11 along the direction perpendicular to the first direction x is a second dimension d2, and the second dimension d2 is positively correlated with the margin d passing through the center of the predetermined binding terminal 11.

[0032] In the display panel 1 provided in the present application, the binding area B is used to set a preset binding terminal 11 to electrically connect to the flexible circuit board 21 with the driving chip.

[0033] In the display panel 1 provided in the present application, the binding area B is located in the non-display area NA. Specifically, the number of the binding area B can be one, and it is located at one side edge of the display panel 1, so that only one side edge of the display panel 1 is wider. At the same time, the binding area B is set to facilitate the connection of the connection terminals in the touch layer 17 and the driving chip.

[0034] In the display panel 1 provided in the present application, the binding area B is located in the non-display area NA, and the binding area B includes a first edge L1 and a second edge L2. The first edge L1 is arranged along the first direction x, and along the direction perpendicular to the first edge L1, there are multiple margins d between the first edge L1 and the second edge L2. The second edge L2 is not parallel to the first edge L1. Specifically, the second edge L2 may be a non-linear irregular shape. The values ​​of the above-mentioned margins d are different, so that the space used to accommodate the preset binding terminals 11 is non-uniform. Multiple preset binding terminals 11 are located in the binding area B and are arranged along the first direction x. The width of the frame is generally the value of the margin d. Arranging the multiple preset binding terminals 11 to be arranged along the first direction x can make the projections of the binding terminals 13 perpendicular to the first direction x non-overlapping, thereby reducing the value of the margin d. The maximum dimension of the preset binding terminal 11 along the first direction x is a first dimension d1. Among the multiple preset binding terminals 11, the first dimension d1 is negatively correlated with the margin d passing through the center of the preset binding terminal 11. The maximum dimension of the preset binding terminal 11 along the direction perpendicular to the first direction x is a second dimension d2. The second dimension d2 is positively correlated with the margin d passing through the center of the preset binding terminal 11. That is, the larger the margin d passing through the center of the preset binding terminal 11, the larger the first dimension d1 of the preset binding terminal 11 and the smaller the second dimension d2. The smaller the margin d passing through the center of the preset binding terminal 11, the smaller the first dimension d1 of the preset binding terminal 11 and the larger the second dimension d2. This allows the space of the binding area B to be fully utilized while ensuring the binding area of ​​each preset binding terminal 11, reducing the area of ​​the region in the binding area B where the preset binding terminal 11 is not provided, thereby achieving a narrow frame effect. At the same time, the binding area of ​​the preset binding terminal 11 is ensured, that is, the binding yield is ensured, and a balance between a narrow frame and a binding yield is achieved.

[0035] Specifically, the first edge L1 being disposed along the first direction x means that the first edge L1 has an arrangement direction, an extension direction, or a tangent direction parallel to the first direction x.

[0036] In a feasible embodiment, as shown in FIG. 1 , FIG. 3 and FIG. 4 , the first edge L1 includes a straight edge and / or an arc edge arranged along the first direction x.

[0037] Specifically, when the first edge L1 comprises a line segment, it may comprise a straight edge or an arcuate edge. When comprising a straight edge, the straight edge extends along the first direction, as shown in Figure 3. As shown in Figure 4, when comprising an arcuate edge, the arcuate edge comprises an axis of symmetry perpendicular to the first direction, and a tangent line passing through the intersection of the axis of symmetry and the arcuate edge is perpendicular to the first direction. As shown in Figure 1, the first edge L1 may also comprise a straight edge and two arcuate edges connecting the straight edge, with the straight edge and the two arcuate edges arranged along the first direction. This application does not specifically limit the number of side edges within the first edge L1. When comprising multiple side edges, the multiple side edges are arranged along the first direction. As shown in Figure 5, the display panel 1 provided in this application may be a touch display panel 1, comprising an array substrate 14, and a light-emitting device layer 15, an encapsulation layer 16, a touch layer 17, and a polarizer 18 stacked and disposed on one side of the array substrate 14, away from the array substrate 14. The polarizer 18 covers the display area AA and is partially located in the non-display area NA to ensure light extraction. The preset binding terminals 11 are located on the array substrate 14, and the polarizer 18 exposes the preset binding terminals 11. The minimum distance between the polarizer 18 and the preset binding terminals 11, along a direction parallel to the light-emitting surface of the display panel 1, must be greater than a first preset distance to allow for bonding and prevent damage to the polarizer 18 from the high temperature and high pressure environment during the bonding process. If the display panel 1 is a touch display panel 1, the bonding area B may include a first bonding area B1 for bonding the touch layer 17 to the flexible printed circuit board 21 equipped with a driver chip. Alternatively, if the display panel 1 is a touch display panel 1 or a non-touch display panel 1, the bonding area B may include a second bonding area B2 for bonding the driver circuit within the array substrate 14 to the flexible printed circuit board 21 equipped with the driver chip. The second bonding area B2 may be located on a side of the first bonding area B1 away from the display area AA, so that the flexible printed circuit board 21 (FPC) can be folded to the side facing away from the light-emitting surface of the display panel 1 after bonding to the bonding area B. The preset binding terminals 11 in the display panel 1 described above can be the binding terminals 13 used to bind the touch layer 17 to the flexible circuit board 21 equipped with a driver chip. The dividing line between the first binding area B1 and the second binding area B2 can be a straight line segment parallel to the first edge L1. The binding terminals 13 in the second binding area B2 can have the same shape and binding area and be evenly distributed along the first direction x in the second binding area B2 to facilitate manufacturing.

[0038] In a feasible embodiment, as shown in FIG2 , the second edge L2 is in an arc shape, and the margin d gradually increases from the center of the first edge L1 toward both ends.

[0039] The edge of the display area AA of the display panel 1 includes an arc segment or other special-shaped segments, and this application does not specifically limit this. When the edge of the display area AA of the display panel 1 is not parallel to the edge of the non-display area NA away from the display area AA, the border portion, that is, the area of ​​the non-display area NA will change irregularly and become special-shaped, so that when the specifications (shape, size) of the preset binding terminal 11 are constant, the area of ​​the non-display area NA will be wasted, and the space of the non-display area NA cannot be fully utilized. In order to achieve the binding effect, the specifications of the binding terminal 13 cannot be compressed excessively, which will cause a larger border. This application focuses on the example of the edge of the display area AA including an arc segment, that is, the second edge L2. When the shape of the second edge L2 is an arc, the margin d gradually increases from the center of the first edge L1 to the two ends. Therefore, preset binding terminals 11 of different specifications can be set along the first direction x to adapt to the shape of the non-display area NA and make full use of its space.

[0040] In a feasible embodiment, as shown in Figure 2, the first dimension d1 of each preset binding terminal 11 gradually decreases from the center of the first edge L1 to both ends, and the second dimension d2 of each preset binding terminal 11 gradually increases from the center of the first edge L1 to both ends.

[0041] In the above embodiment, since the margin d gradually increases from the center of the first edge L1 toward both ends, the preset binding terminals 11 can be set as follows: from the center of the first edge L1 toward both ends, the first dimension d1 of each preset binding terminal 11 gradually decreases, and the second dimension d2 of each preset binding terminal 11 gradually increases. That is, since the margin d at the center of the first edge L1 is small, the second dimension d2 of the preset binding terminal 11 here cannot be set too large. Therefore, by setting the first dimension d1 to be larger, the binding area of ​​the preset binding terminal 11 is ensured, thereby ensuring the binding effect. Since the margin d at both ends of the first edge L1 is large, the second dimension d2 of the preset binding terminal 11 here can be set to be larger to make full use of the space perpendicular to the first direction x here, while making the first dimension d1 smaller, thereby ensuring that the number of preset binding terminals 11 along the first direction x meets the requirements.

[0042] In the above embodiment, the binding area B includes a first side and a second side located on both sides of the center of the first edge L1 along the first direction x. The first dimensions d1 of different preset binding terminals 11 on the first side (or the second side) may be different and gradually decrease from the center of the first edge L1 toward both ends. The second dimensions d2 of different preset binding terminals 11 on the first side (or the second side) may be different and gradually increase from the center of the first edge L1 toward both ends, so as to continuously adjust the dimensions of the preset binding terminals 11 according to the space of the binding area B, thereby maximizing space utilization. The preset binding terminals 11 on the first and second sides may be symmetrical along a straight line perpendicular to the first direction x and passing through the center of the first edge L1 to facilitate design and preparation.

[0043] In a feasible embodiment, as shown in Figure 6, the binding area B includes multiple preset binding terminal 11 combinations, each preset binding terminal 11 combination includes multiple preset binding terminals 11, and the preset binding terminals 11 in each preset binding terminal 11 combination have the same size. From the center of the first edge L1 to the two ends, the first size d1 of the preset binding terminals 11 in each preset binding terminal 11 combination gradually decreases, and the second size d2 of the preset binding terminals 11 in each preset binding terminal 11 combination gradually increases.

[0044] In the above embodiment, by dividing the preset binding terminal 11 into multiple preset binding terminal 11 combinations, the number of times the specifications of the preset binding terminal 11 are adjusted is reduced on the basis of ensuring the preset binding terminal 11 changes from the center of the first edge L1 to both ends, thereby simplifying the design and preparation process.

[0045] In a feasible implementation manner, the binding area of ​​the preset binding terminal 11 is larger than a preset value, and the preset value is the minimum value for the preset binding terminal to conduct a signal so that the display panel can be used normally.

[0046] In the above embodiment, the first size d1 and / or second size d2 of each preset binding terminal 11 may be different, but it is necessary to ensure that the binding area of ​​each preset binding terminal 11 is larger than the preset value to ensure the binding yield of each preset binding terminal 11 and improve the manufacturing yield of the display panel 1.

[0047] In a feasible implementation, the binding area of ​​the preset binding terminal 11 can cover at least ten conductive particles in the anisotropic conductive film.

[0048] The pre-set binding terminal 11 and the electrical connection end 211 of the flexible circuit board 21 are electrically connected via an anisotropic conductive film, which includes conductive particles and a thermosetting adhesive. During the binding process, a compressive force is applied to the pre-set binding terminal 11 and the electrical connection end 211 of the flexible circuit board 21, thereby compressing the thermosetting adhesive and causing the conductive particles to electrically connect the pre-set binding terminal 11 to the electrical connection end 211 of the flexible circuit board 21. By ensuring that the binding area of ​​the pre-set binding terminal 11 covers at least ten conductive particles in the anisotropic conductive film, a good electrical connection is achieved, thereby improving electrical connection reliability.

[0049] In a feasible implementation manner, the binding areas of the preset binding terminals 11 are equal.

[0050] In the above embodiment, by setting the binding areas of each preset binding terminal 11 to be equal, the resistance values ​​of each preset binding terminal 11 can be made the same, thereby making the conductive performance of each preset binding terminal 11 the same, thereby reducing the differences in circuits corresponding to different preset binding terminals 11, thereby improving the touch stability of the display panel 1.

[0051] In a feasible embodiment, as shown in FIG. 7 and FIG. 8 , the preset binding terminal 11 includes second side edges 111 adjacent to the second edge L2 , and each second side edge 111 is located on a virtual profile line L3 parallel to the second edge L2 .

[0052] In the above embodiment, the virtual profile line L3 being parallel to the second edge L2 means that the center of the circle corresponding to the virtual profile line L3 coincides with the center of the circle corresponding to the second edge L2, and the radii corresponding to the virtual profile line L3 and the second edge L2 are different.

[0053] In the above embodiment, the second side 111 is curved, and the minimum distance between each second side 111 and the second edge L2 is the same. This minimum distance provides space for the binding of the predetermined binding terminals 11 and prevents the high temperature and high pressure environment during the binding process from damaging the performance of the polarizer 18. By setting each minimum distance to be the same, each minimum distance can be set to the minimum value that meets the binding requirements, thereby further fully utilizing the space in the binding area B and reducing the frame size to achieve a narrow frame.

[0054] In a feasible implementation, as shown in FIG2 , the binding terminal 11 is preset to be in a rectangular shape. The rectangle includes two opposite first sides 112 and two opposite second sides 113 . The first side 112 is parallel to the first direction x.

[0055] In the above embodiment, the rectangular shape of the preset binding terminals 11 can reduce design difficulty and facilitate calculation of the binding area of ​​the preset binding terminals 11. Setting the first side 112 of the rectangle parallel to the first direction x can better control the spacing of the preset binding terminals 11, so that the space between adjacent preset binding terminals 11 can be fully utilized while ensuring the spacing between the preset binding terminals 11.

[0056] In a feasible embodiment, as shown in Figures 9 and 10, the shape of the preset binding terminal 11 is a right-angled trapezoid, the right-angled waist 114 of the right-angled trapezoid is parallel to the first direction x, the oblique waist 115 of the right-angled trapezoid is located on the side of the right-angled waist 114 facing the second edge L2, and the two endpoints of the oblique waist 115 are located on a virtual special-shaped line L3 parallel to the second edge L2.

[0057] In the above embodiment, to simplify the calculation of the binding area of ​​the preset binding terminals 11 and the preparation process of the preset binding terminals 11, the preset binding terminals 11 can be shaped as a right-angled trapezoid, with the right-angled waist 114 of the right-angled trapezoid parallel to the first direction x. This allows for better control of the spacing between the preset binding terminals 11, thereby fully utilizing the space between adjacent preset binding terminals 11 while ensuring the spacing between the preset binding terminals 11. The right-angled waist 115 of the right-angled trapezoid is located on the side of the right-angled waist 114 facing the second edge L2, and the two endpoints of the waist 115 are located on a virtual contour line L3 parallel to the second edge L2. This fully utilizes the space perpendicular to the first direction x and provides space for the binding of the preset binding terminals 11, preventing damage to the performance of the polarizer 18 caused by the high temperature and high pressure environment during the binding process. This design facilitates setting the minimum distance between each waist 115 and the second edge L2 to the minimum value that meets the binding requirements, thereby further fully utilizing the space in the binding area B and reducing the frame size to achieve a narrow frame.

[0058] In a feasible implementation manner, as shown in FIG9 , the first side of each preset binding terminal 11 close to the first edge L1 is located on a virtual line parallel to the first edge L1 .

[0059] In the above embodiment, the space perpendicular to the first direction x can be fully utilized, and the distances between the preset binding terminals 11 and the second edge L2 and the first edge L1 can be easily controlled, so that the arrangement is more orderly.

[0060] Here, the virtual line refers to a virtual straight line.

[0061] In another feasible embodiment, as shown in FIG. 11 and FIG. 12 , the shape of the second edge L2 may further include a combination of a straight line segment and an arc segment, with the arc segments located at both ends of the straight line segment, which is not particularly limited in this application.

[0062] The present application also provides a display device 2 , as shown in FIG13 , comprising any one of the display panels 1 provided in the above embodiments of the present application.

[0063] Since the display device 2 provided in the present application includes any one of the display panels 1 provided in the above embodiments, the display device 2 provided in the present application has the beneficial effects of any one of the display panels 1 provided in the above embodiments, which will not be described in detail here.

[0064] The display device 2 in the embodiment of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0065] The display device 2 provided herein may further include a flexible circuit board 21. As shown in FIG14 , the flexible circuit board 21 is bonded to the binding area B and bent to the side facing away from the light-emitting surface of the display panel 1. The flexible circuit board 21 includes an electrical connection terminal 211, which has a shape that matches the predetermined binding terminal 11, though this application does not specifically limit this. The edge of the conductive film 22 between the electrical connection terminal 211 and the predetermined binding terminal 11, facing the display area AA, is parallel to the second edge L2 to prevent adverse effects on the display area AA.

[0066] While the embodiments described above are not exhaustive, they do not limit the invention to specific embodiments. Clearly, numerous modifications and variations are possible based on the above description. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better utilize the present invention and its modifications. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A display panel, comprising a display area and a non-display area, wherein the non-display area surrounds at least a portion of the display area; the display panel comprises: a binding area, the binding area being located in the non-display area, the binding area comprising a first edge and a second edge, the first edge being arranged along a first direction, the second edge being a portion of an edge of the display area close to the first edge, and having a plurality of margins between the first edge and the second edge in a direction perpendicular to the first direction; A plurality of preset binding terminals are located in the binding area and arranged along the first direction, the maximum dimension of the preset binding terminals along the first direction is a first dimension, and among the plurality of preset binding terminals, the first dimension is negatively correlated with the margin passing through the center of the preset binding terminal, and the maximum dimension of the preset binding terminal along the direction perpendicular to the first direction is a second dimension, and the second dimension is positively correlated with the margin passing through the center of the preset binding terminal.

2. The display panel according to claim 1, wherein: The first edge includes a straight edge and / or an arc edge arranged along a first direction.

3. The display panel according to claim 2, wherein: The shape of the second edge includes an arc shape.

4. The display panel according to claim 1, wherein: The margin has a tendency to increase from the center of the first edge toward both ends.

5. The display panel according to claim 3, wherein: The first size of each of the preset binding terminals gradually decreases from the center of the first edge to both ends, and the second size of each of the preset binding terminals gradually increases from the center of the first edge to both ends.

6. The display panel according to claim 1, wherein: The binding area includes a plurality of preset binding terminal combinations, each of the preset binding terminal combinations includes a plurality of the preset binding terminals, and the preset binding terminals in each of the preset binding terminal combinations have the same size.

7. The display panel according to claim 6, wherein: From the center of the first edge toward both ends, the first size of the preset binding terminals in each preset binding terminal combination gradually decreases, and the second size of the preset binding terminals in each preset binding terminal combination gradually increases.

8. The display panel according to claim 1, wherein: A first side edge of each of the preset binding terminals close to the first edge is at least partially located on a virtual line parallel to the first edge.

9. The display panel according to claim 8, wherein: The first side edges of the preset binding terminals close to the first edge are all located on a virtual line parallel to the first edge.

10. The display panel according to claim 8, wherein: The shape of the preset binding terminal is a rectangle, and the rectangle includes two opposite first sides and two opposite second sides, and the first side is parallel to the first direction.

11. The display panel according to claim 8, wherein: The shape of the preset binding terminal is a right-angled trapezoid, the right-angled waist of the right-angled trapezoid is parallel to the first direction, the oblique waist of the right-angled trapezoid is located on the side of the right-angled waist facing the second edge, and the two endpoints of the oblique waist are located on a virtual special-shaped line parallel to the second edge.

12. The display panel according to claim 1, wherein: The preset binding terminal includes a second side edge adjacent to the second edge, and each of the second side edges is at least partially located on a virtual profile line parallel to the second edge.

13. The display panel according to claim 12, wherein: The second side includes an arc shape.

14. The display panel according to claim 12, wherein: The second side edges are all located on a virtual profile line parallel to the second edge.

15. The display panel according to claim 1, wherein: The binding area of ​​the preset binding terminal is greater than a preset value, and the preset value is a minimum value for the preset binding terminal to conduct a signal so that the display panel can be used normally.

16. The display panel according to claim 15, wherein: The binding area of ​​the preset binding terminal can cover at least ten conductive particles in the anisotropic conductive film.

17. The display panel according to claim 15, wherein: The binding areas of the preset binding terminals are equal.

18. The display panel according to claim 1, wherein: It comprises an array substrate, and a light emitting device layer, a packaging layer, a touch layer and a polarizer stacked on one side of the array substrate in a direction away from the array substrate, wherein the minimum distance between the polarizer and the preset binding terminal is greater than a first preset distance.

19. The display panel according to claim 18, wherein: The binding area includes a first binding area, which is used to bind the touch layer to a flexible circuit board with a driver chip; and / or the binding area includes a second binding area, which is used to bind the driving circuit in the array substrate to a flexible circuit board with a driver chip.

20. A display device, wherein: Comprising a display panel as described in any one of claims 1-19.

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