Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises a flexible substrate and a display substrate, the flexible substrate comprises a first extension part and a second extension part which are arranged in the first direction, the first extension part is arranged on one side of the display substrate in the thickness direction, and a virtual bonding pad is arranged between the first extension part and the display substrate; the display panel is provided with a center line extending in the first direction, the second extending part comprises a first edge extending in the direction away from the display substrate, and the first edge intersects with the first direction; a virtual pattern is fitted on the outer boundary of the virtual bonding pad, in the virtual bonding pad and the first edge which are correspondingly arranged, the virtual pattern comprises a first pattern edge located on one side of the extension direction of the first edge, the first pattern edge is arranged close to the second extension part, and the included angle between the first pattern edge and the first edge ranges from 80 degrees to 100 degrees. Therefore, according to the display panel and the display device provided by the invention, the binding stability between the display substrate and the flexible substrate can be improved.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) display technology is regarded as the most promising new flat panel display technology of the next generation. Compared with liquid crystal display technology, OLED display technology has the advantages of low energy consumption, low cost, self-luminescence, wide viewing angle and fast response speed. The display panel includes a display substrate and a flexible circuit board, and the display substrate and the flexible circuit board are bound and connected. However, the binding stability between the above-mentioned display substrate and the flexible circuit board is poor. Summary of the invention

[0003] Based on this, it is necessary to provide a display panel and a display device that can improve the binding stability between a display substrate and a flexible substrate.

[0004] In a first aspect, an embodiment of the present application provides a display panel, comprising: a flexible substrate, a display substrate, and at least one dummy pad, the flexible substrate comprising a first extension portion and a second extension portion connected to each other, the first extension portion and the second extension portion are arranged along a first direction, the first extension portion is arranged on one side in a thickness direction of the display substrate, the dummy pad is located between the first extension portion and the display substrate, and the first direction is perpendicular to the thickness direction of the display substrate;

[0005] The display panel is provided with a center line extending along a first direction, the second extension portion includes a first edge extending along a direction away from the display substrate, the first edge intersects the first direction, and the virtual pad and the first edge are correspondingly arranged on the same side of the center line;

[0006] The outer boundary of the virtual pad is fitted to form a virtual figure. In the corresponding virtual pad and the first edge, the virtual figure includes a first figure edge located on one side of the extension direction of the first edge, the first figure edge is arranged close to the second extension portion, and the angle between the first figure edge and the first edge is in the range of 80°-100°.

[0007] The display panel provided by the embodiment of the present application has an angle range of 80°-100° between the first graphic edge and the corresponding first edge, so that when an external force on the first edge acts on the virtual pad at the first graphic edge, the force decomposed into by the external force along the extension direction of the first graphic edge is small, so that the external force is not easy to drive the virtual pad to displace along the extension direction of the first graphic edge, so that the binding pulling force and the binding effect between the display substrate and the flexible substrate are improved, so that the peeling phenomenon between the flexible substrate and the display substrate can be alleviated, so that the flexible substrate can better resist the influence of the external force when subjected to the external force.

[0008] In one embodiment, there are two first sides, and the two first sides are arranged opposite to each other in a second direction, and the second direction is perpendicular to the thickness direction of the display substrate and is different from the first direction;

[0009] Preferably, the first extension portion includes two second sides arranged opposite to each other along the second direction, and the angle between the first side and the second side is in the range of 130°-140°;

[0010] Preferably, the flexible substrate includes a third extension portion, the third extension portion is located on a side of the second extension portion away from the first extension portion, the third extension portion includes two third sides arranged opposite to each other along the second direction, and the angle between the first side and the third side is in the range of 130°-140°;

[0011] Preferably, at least one of the second side and the third side extends along the first direction;

[0012] Preferably, in the correspondingly arranged virtual pad and the first edge, the angle between the first graphic edge and the first edge is 90°;

[0013] Preferably, the angle between the first graphic edge and the first direction is in the range of 40°-50°;

[0014] Preferably, the first side includes a first end close to the first extension portion and a second end away from the first extension portion, and the second end is inclined relative to the first end in a direction close to the center line;

[0015] Preferably, the angle between the extension direction of the first side and the first direction is in the range of 40°-50°;

[0016] Preferably, the first direction and the second direction are perpendicular.

[0017] In one of the embodiments, in the correspondingly arranged virtual pad and the first edge, the virtual pattern includes a second pattern edge located on one side of the extension direction of the first pattern edge, the second pattern edge is arranged close to the second extension portion, and the angle between the second pattern edge and the first direction is in the range of 40°-50°;

[0018] Preferably, in the correspondingly arranged virtual pad and the first edge, the second graphic edge is parallel to the first edge.

[0019] In one of the embodiments, the virtual pad includes a plurality of sub-virtual pads arranged at intervals;

[0020] Preferably, in the correspondingly arranged virtual pads and the first side, a plurality of sub-virtual pads are arranged at intervals along the extension direction of the first side, and the included angle between the extension direction of the sub-virtual pads and the first side is in the range of 80°-100°;

[0021] Preferably, in the correspondingly arranged virtual pad and the first side, the angle between the extension direction of the sub-virtual pad and the first side is 90°;

[0022] Preferably, the distance between two adjacent sub-dummy pads ranges from 10 μm to 200 μm;

[0023] Preferably, in the same virtual pad, the number of sub-virtual pads ranges from 3 to 10.

[0024] In one of the embodiments, the virtual pad includes a first virtual pad and a second virtual pad, the first virtual pad is arranged on the flexible substrate, the second virtual pad is arranged on the display substrate, and the flexible substrate and the display substrate are connected via the first virtual pad and the second virtual pad;

[0025] Preferably, the surface of the first virtual pad facing away from the flexible substrate and the surface of the second virtual pad facing away from the display substrate are arranged opposite to each other along the thickness direction of the display substrate; or, the sub-virtual pad of the first virtual pad is a first sub-virtual pad, and a first gap is provided between two adjacent first sub-virtual pads, the sub-virtual pad of the second virtual pad is a second sub-virtual pad, and a second gap is provided between two adjacent second sub-virtual pads, the first sub-virtual pad is inserted in the second gap, and the second sub-virtual pad is inserted in the first gap.

[0026] In one of the embodiments, in the same virtual figure, the size of the virtual figure along the extension direction of the first figure edge gradually increases from the first extension portion to the second extension portion;

[0027] Alternatively, in the same virtual pattern, the dimension of the virtual pattern along the extension direction of the first pattern edge is the same everywhere from the first extension portion to the second extension portion.

[0028] In one of the embodiments, in the correspondingly arranged virtual pad and the first edge, the angle between the extension direction of the virtual pad and the first edge is in the range of 80°-100°;

[0029] Preferably, in the correspondingly arranged virtual pad and the first edge, the angle between the extension direction of the virtual pad and the first edge is 90°;

[0030] Preferably, the angle between the extension direction of the virtual pad and the first direction is in the range of 40°-50°.

[0031] In one of the embodiments, a positioning component is provided between the first extension portion and the display substrate. Preferably, the dummy pads and the positioning component are arranged along a second direction, the second direction is perpendicular to the thickness direction of the display substrate and is different from the first direction; at least part of the dummy pads is located on a side of the positioning component away from the center line;

[0032] Preferably, the positioning assembly includes a first positioning member and a second positioning member, the first positioning member is arranged on the first extension portion, the second positioning member is arranged on the display substrate, and the first positioning member and the second positioning member are plugged and connected along the thickness direction of the display substrate;

[0033] Preferably, at least part of the virtual pads are located on a side of the positioning component facing the center line;

[0034] Preferably, the display panel further comprises an auxiliary dummy pad, the auxiliary dummy pad is located on a side of the positioning component facing the center line, and the auxiliary dummy pad extends along the first direction.

[0035] In one embodiment, a signal terminal is disposed between the first extension portion and the display substrate, and the signal terminal and the dummy pad are arranged along a second direction, the second direction is perpendicular to the thickness direction of the display substrate and is different from the first direction;

[0036] Preferably, the signal terminal is located on a side of at least part of the virtual pad facing the center line;

[0037] Preferably, the signal terminal comprises a first signal terminal and a second signal terminal, the first signal terminal is arranged on the first extension portion, the second signal terminal is arranged on the display substrate, and a surface of the first signal terminal facing away from the first extension portion and a surface of the second signal terminal facing away from the display substrate are arranged opposite to each other along a thickness direction of the display substrate;

[0038] Preferably, the extension length of the first signal terminal ranges from 0.4 mm to 1 mm;

[0039] Preferably, the extension length of the second signal terminal ranges from 0.25 mm to 0.8 mm;

[0040] Preferably, the virtual pad includes a first virtual pad, the first virtual pad is arranged on the flexible substrate, the extension length of the first signal terminal is L1, the first graphic edge of the first virtual pad has an angle θ with the first direction, the length range of the first graphic edge of the first virtual pad is 0.9*L1 / cosθ-1.1*L1 / cosθ, and / or the area range of the virtual graphic of the first virtual pad is 0.81*L12 / cosθ2-1.21*L12 / cosθ2;

[0041] Preferably, the virtual pad includes a second virtual pad, the second virtual pad is arranged on the display substrate, the extension length of the second signal terminal is L2, the first graphic edge of the second virtual pad has an angle θ with the first direction, the length range of the first graphic edge of the second virtual pad is 0.9*L2 / cosθ-1.1*L2 / cosθ, and / or the area range of the virtual graphic of the second virtual pad is 0.81*L22 / cosθ2-1.21*L22 / cosθ2.

[0042] In a second aspect, an embodiment of the present application provides a display device, comprising the display panel in the above-mentioned first aspect.

[0043] In the display device provided by the embodiment of the present application, the angle range between the first graphic edge and the corresponding first edge is 80°-100°, so that when an external force on the first edge acts on the virtual pad at the first graphic edge, the force decomposed into by the external force along the extension direction of the first graphic edge is small, so that the external force is not easy to drive the virtual pad to displace along the extension direction of the first graphic edge, so that the binding pulling force and the binding effect between the display substrate and the flexible substrate are improved, so that the peeling phenomenon between the flexible substrate and the display substrate can be alleviated, so that the flexible substrate can better resist the influence of the external force when subjected to the external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings required for use in the description of the embodiments or exemplary embodiments 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 paying creative work.

[0045] Figure 1 A schematic diagram of the structure of a display panel provided in an embodiment of the present application.

[0046] Figure 2 for Figure 1 Schematic diagram of the local structure.

[0047] Figure 3 A schematic diagram of the partial structure of a display panel provided in an embodiment of the present application.

[0048] Figure 4a A schematic diagram of the partial structure of a flexible substrate provided in an embodiment of the present application.

[0049] Figure 4b This is another partial structural schematic diagram of the flexible substrate provided in an embodiment of the present application.

[0050] Figure 5 A schematic diagram of the local structure of a display substrate provided in an embodiment of the present application.

[0051] Figure 6 A schematic diagram of the angle and force between the first graphic edge and the corresponding first edge provided in an embodiment of the present application.

[0052] Figure 7 Another schematic diagram of the angle and force between the first graphic edge and the corresponding first edge provided in an embodiment of the present application.

[0053] Figure 8 Another schematic diagram of the angle and force between the first graphic edge and the corresponding first edge provided in an embodiment of the present application.

[0054] Fig. 9 A top view of a sub-virtual pad provided in an embodiment of the present application.

[0055] Fig.10 Another top view of the sub-dummy pad provided in an embodiment of the present application.

[0056] Fig.11 Another top view of the sub-dummy pad provided in an embodiment of the present application.

[0057] Fig.12 A top view of a virtual pad provided in an embodiment of the present application.

[0058] Fig.13 Another top view of the virtual pad provided in an embodiment of the present application.

[0059] Fig.14 Another top view of the virtual pad provided in an embodiment of the present application.

[0060] Description of reference numerals:

[0061] 100, display panel; 110, flexible substrate; 111, first extension; 1112, second edge; 112, second extension; 1121, first edge; 113, third extension; 1133, third edge; 120, display substrate; 130, virtual pad; 131, first virtual pad; 132, second virtual pad; 133, sub-virtual pad; 1331, first sub-virtual pad; 1332, second sub-virtual pad; 140, virtual graphic; 141, first graphic edge; 142, second graphic edge; 150, positioning component; 151, first positioning member; 152, second positioning member; 160, signal terminal; 161, first signal terminal; 162, second signal terminal; 170, auxiliary virtual pad. DETAILED DESCRIPTION

[0062] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0063] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, they do not represent any order, quantity or importance, but are only used to distinguish different components. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the present application, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0064] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0065] Organic Light Emitting Diode (OLED) display technology is regarded as the most promising new flat panel display technology of the next generation. Compared with liquid crystal display technology, OLED display technology has the advantages of low energy consumption, low cost, self-luminescence, wide viewing angle and fast response speed.

[0066] Among the related technologies, Chip On Film (COF) technology is a chip soft film assembly technology that fixes the driving circuit (Integrated Circuit, IC) on a flexible printed circuit (FPC). The IC on the display substrate is integrated onto the FPC to form a COF flexible circuit board, the COF flexible circuit board is bound and connected to the display substrate, and the COF flexible circuit board is bent to the backlight surface of the display substrate to save space on the lower frame and achieve a narrow lower frame.

[0067] The display substrate includes a display area and a binding area. Signal terminals and virtual pads can be provided on both the FPC and the display substrate in the binding area. The signal terminals and the virtual pads extend from the display area to the binding area. Since the design space of the virtual pads is limited, the above-mentioned arrangement of the virtual pads has a small gain in the binding strength between the FPC and the display substrate, resulting in poor binding stability between the FPC and the display substrate, which makes the FPC and the display substrate easy to peel off.

[0068] In view of at least one of the above problems, embodiments of the present application provide a display panel and a display device, which can improve the binding stability between the display substrate and the flexible substrate, thereby alleviating the peeling phenomenon between the display substrate and the flexible substrate.

[0069] The following will be combined Figure 1-Figure 11 The display device provided in the embodiment of the present application is described.

[0070] The embodiment of the present application provides a display device, which may include a display panel 100. The display device may be an electronic paper, a mobile phone, a tablet computer, a television, a display, a laptop computer, a digital photo frame, a smart bracelet, a smart watch, a super personal computer, a navigator, a wireless device, a personal digital assistant (PDA), a handheld or portable computer, a GPS receiver / navigator, a camera, an MP4 video player, a camcorder, a game console, a clock, a calculator, a television monitor, a computer monitor, a car display (e.g., an odometer display, etc.), a cockpit controller and / or display, a display of a camera view (e.g., a display of a rear-view camera in a vehicle), an electronic billboard or sign, a projector, or other mobile or fixed terminals.

[0071] Exemplarily, the display panel 100 may be an organic light-emitting diode (OLED) display panel, a micro organic light-emitting diode (Micro OLED) display panel, a light emitting diode (LED) display panel, a quantum dot light emitting diode (QLED) display panel, a mini light emitting diode (Mini LED) display panel, a micro light emitting diode (Micro LED) display panel, or a liquid crystal (LCD) display panel, etc. The embodiment of the present application is described by taking an OLED display panel as an example.

[0072] See also Figure 1, the display panel 100 may have a first direction a, a second direction b and a third direction, and the first direction a, the second direction b and the third direction are all different. The first direction a and the second direction b may be any two different directions parallel to the display panel 100, and the third direction may be any direction intersecting with a plane parallel to the display panel 100. For example, the first direction a, the second direction b and the third direction may be perpendicular to each other. Exemplarily, the first direction a may be the width direction of the display panel 100, the second direction b may be the length direction of the display panel 100, and the third direction may be the thickness direction of the display panel 100. The length, width and thickness in the embodiments of the present application are merely for the convenience of description and do not imply any limitation on the size. For example, the width may be greater than, equal to or less than the length. The direction of the display substrate 120 may be consistent with the direction of the display panel 100.

[0073] The display panel 100 provided in the embodiment of the present application is described below.

[0074] See also Figure 1 An embodiment of the present application provides a display panel 100 . The display panel 100 may include a display substrate 120 and a flexible substrate 110 . The display substrate 120 and the flexible substrate 110 may be bound and connected.

[0075] For example, an IC may be disposed on the flexible substrate 110 , so as to achieve electrical signal transmission between the IC and the display substrate 120 .

[0076] Exemplarily, the display substrate 120 includes a display area and a binding area, and the display area is disposed adjacent to the binding area. The display substrate 120 located in the binding area can be used to bind and connect the flexible substrate 110.

[0077] For example, see Figure 2 The flexible substrate 110 includes a first extension portion 111 and a second extension portion 112 connected to each other, the first extension portion 111 and the second extension portion 112 are arranged along a first direction a, and the first extension portion 111 is disposed on one side of the thickness direction of the display substrate 120. For example, the first extension portion 111 is located on one side of the thickness direction of the display substrate 120 in the binding area, and the first extension portion 111 is bound and connected to the display substrate 120 in the binding area.

[0078] For example, see Figure 2 The flexible substrate 110 includes a third extension portion 113, and the third extension portion 113 is located on a side of the second extension portion 112 away from the first extension portion 111. By bending the second extension portion 112 and / or the third extension portion 113, a portion of the flexible substrate 110 can be bent to the backlight surface of the display substrate 120, so that the frame width of the display device can be reduced to achieve a narrow frame.

[0079] The second extension portion 112 and / or the third extension portion 113 are bent, and the third extension portion 113 and / or the third extension portion 113 are the main stress-bearing areas during the manufacturing process. Figure 2 and Figure 7 The third extension portion 113 of the flexible substrate 110 is subjected to a tensile external force Fa along the first direction a and an extrusion external force Fb along the second direction b. The external force F is generated on the first edge 1121 through Fa and Fb. When the external force F is transmitted to the virtual pad 130 at the first graphic edge 141, it can be decomposed into a first force F1 perpendicular to the first graphic edge 141 and a second force F2 parallel to the first graphic edge 141.

[0080] Exemplarily, the flexible substrate 110 may be a flexible circuit board.

[0081] In some embodiments, see Figure 2 The second extension portion 112 includes a first edge 1121 extending in a direction away from the display substrate 120, and the first edge 1121 intersects with the first direction a, so that the external force F on the first edge 1121 can be decomposed into two components along the first direction a and the second direction b, thereby avoiding excessive external forces on the first edge 1121 along the first direction a and the second direction b, thereby alleviating the peeling phenomenon between the display substrate 120 and the flexible substrate 110.

[0082] The virtual pad 130 provided in the embodiment of the present application is described below.

[0083] In some embodiments, see Figure 2 , the display substrate 120 includes at least one dummy pad 130, and the dummy pad 130 is located between the first extension portion 111 and the display substrate 120. By providing the dummy pad 130, the contact area between the flexible substrate 110 and the display substrate 120 can be increased, thereby increasing the pulling force of the flexible substrate 110 and improving the binding stability between the display substrate 120 and the flexible substrate 110. Among them, the dummy pad 130 may not play an electrical role, so the conductive glue at the dummy pad 130 can be replaced by a non-conductive colloid.

[0084] For example, the number of dummy pads 130 may be 1, 2, 3, 4, 5 or more.

[0085] For example, see Figure 1 and Figure 2, the display panel 100 is provided with a center line AB extending along the first direction a, and the virtual pad 130 and the first edge 1121 are correspondingly arranged on the same side of the center line AB. The outer boundary of the virtual pad 130 is fitted with a virtual figure 140, and in the correspondingly arranged virtual pad 130 and the first edge 1121, the virtual figure 140 includes a first figure edge 141 located on one side of the extension direction of the first edge 1121, and the first figure edge 141 is arranged close to the second extension portion 112, and when the external force F on the first edge 1121 is transmitted to the virtual pad 130, it will first act on the virtual pad 130 at the first figure edge 141.

[0086] Among them, see Figure 2 , the shape of the virtual pattern 140 can be fitted by the outermost edge of the virtual pad 130. The outermost edge of the virtual pad 130 is at least partially covered by the virtual pattern 140. In the embodiment where the virtual pad 130 includes a plurality of sub-virtual pads 133: the edges of the plurality of sub-virtual pads 133 away from the center of the virtual pad 130 are fitted together to form a closed pattern, which is the virtual pattern 140. The center line AB and the virtual pattern 140 are not real structures.

[0087] For example, see Figure 2 and Figure 6 In the corresponding virtual pad 130 and the first edge 1121, when the angle between the first graphic edge 141 and the first edge 1121 is 90°, when the external force F on the first edge 1121 acts on the virtual pad 130 at the first graphic edge 141, the display substrate 120 will apply a reaction force F' to the virtual pad 130, and the reaction force F' is perpendicular to the first graphic edge 141. The external force F is offset by the reaction force F' perpendicular to the first graphic edge 141 and will not be decomposed into forces in other directions, so that the external force F will not cause the virtual pad 130 to displace along the extension direction of the first graphic edge 141, so that the binding pulling force and the binding effect between the display substrate 120 and the flexible substrate 110 are optimal.

[0088] For example, see Figure 7 and Figure 8 , in the corresponding virtual pad 130 and the first edge 1121, when the angle between the first graphic edge 141 and the first edge 1121 is greater than 90° ( Figure 7 ) or less than 90° ( Figure 8 ), when the external force F on the first edge 1121 acts on the virtual pad 130 at the first graphic edge 141, the external force F can be decomposed into a first force F1 and a second force F2, the first force F1 is perpendicular to the first graphic edge 141, and the second force F2 is parallel to the first graphic edge 141, and the second force F2 easily pulls the virtual pad 130 downward in a direction parallel to the first graphic edge 141 ( Figure 7 ) or up ( Figure 8 ), thereby affecting the binding pull-out force and the binding effect between the display substrate 120 and the flexible substrate 110. The greater the difference between the angle between the first graphic edge 141 and the first edge 1121 and 90°, the greater the adverse effect.

[0089] For example, see Figure 2 , Figure 6-Figure 8 In the corresponding virtual pad 130 and the first edge 1121, the angle α between the first graphic edge 141 and the first edge 1121 is in the range of 80°-100°, so that when the external force F on the first edge 1121 acts on the virtual pad 130 at the first graphic edge 141, the second force F2 decomposed by the external force F is small, so that the external force F is not easy to drive the virtual pad 130 to displace along the extension direction of the first graphic edge 141, so that the binding pulling force and the binding effect between the display substrate 120 and the flexible substrate 110 are improved, so that the peeling phenomenon between the flexible substrate 110 and the display substrate 120 can be alleviated, so that the flexible substrate 110 can better resist the influence of the external force when it is acted upon.

[0090] For example, in the corresponding virtual pad 130 and the first edge 1121, the angle α between the first graphic edge 141 and the first edge 1121 may be 80°, 85°, 90°, 95°, 100° or any value between 80° and 100°.

[0091] Exemplarily, the angle between the first graphic edge 141 and the first direction a is in the range of 40°-50°, so that when the virtual pad 130 at the first graphic edge 141 is subjected to an external force along the extension direction of the first graphic edge 141, the external force can be decomposed into a force component along the first direction a and a force component along the second direction b, which are relatively consistent in magnitude and both are small, thereby alleviating the stress concentration phenomenon of the virtual pad 130 at the first graphic edge 141, which is conducive to alleviating the peeling phenomenon between the display substrate 120 and the flexible substrate 110. In addition, it is conducive to increasing the extension length of the virtual pad 130 at the first graphic edge 141, thereby facilitating increasing the binding area between the flexible substrate 110 and the display substrate 120. In an embodiment in which the first direction a and the second direction b are perpendicular, the angle β between the first graphic edge 141 and the second direction b is in the range of 40°-50°.

[0092] For example, the angle between the first graphic edge 141 and the first direction a is 40°, 43°, 45°, 47°, 50°, or any value between 40° and 50°.

[0093] Exemplarily, in the corresponding virtual pad 130 and the first edge 1121, the virtual pattern 140 includes a second pattern edge 142 located on one side of the extension direction of the first pattern edge 141, the second pattern edge 142 is arranged close to the second extension portion 112, and the angle between the second pattern edge 142 and the first direction a is in the range of 40°-50°, so that when the virtual pad 130 at the second pattern edge 142 is subjected to an external force along the extension direction of the second pattern edge 142, the external force can be decomposed into a force component along the first direction a and a force component along the second direction b, which are relatively consistent in magnitude and both are small, thereby alleviating the stress concentration phenomenon of the virtual pad 130 at the second pattern edge 142, which is conducive to alleviating the peeling phenomenon between the display substrate 120 and the flexible substrate 110. In an embodiment in which the first direction a and the second direction b are perpendicular, the angle γ between the second pattern edge 142 and the second direction b is in the range of 40°-50°.

[0094] For example, the included angle between the second graphic edge 142 and the first direction a is 40°, 43°, 45°, 47°, 50°, or any value between 40° and 50°.

[0095] Exemplarily, in the corresponding virtual pad 130 and the first edge 1121, the second graphic edge 142 is parallel to the first edge 1121, which is beneficial to make the distance between the virtual pad 130 at the second graphic edge 142 and the first edge 1121 closer, which is beneficial to increase the setting area of ​​the virtual pad 130, thereby increasing the pulling force of the flexible substrate 110 and improving the binding stability between the display substrate 120 and the flexible substrate 110.

[0096] In some embodiments, see Figure 2 The virtual pad 130 includes a plurality of sub-virtual pads 133 that are spaced apart, and a gap is provided between two adjacent sub-virtual pads 133, which is conducive to the conductive glue flowing into the gap during the binding process, thereby reducing bubbles in the conductive glue. In addition, the contact area between the conductive glue and the virtual pad 130 can also be increased.

[0097] Exemplarily, in the corresponding virtual pad 130 and the first edge 1121, a plurality of sub-virtual pads 133 are arranged at intervals along the extension direction of the first edge 1121, and the angle between the extension direction of the sub-virtual pad 133 and the first edge 1121 is in the range of 80°-100°, so that when the external force F on the first edge 1121 acts on the sub-virtual pad 133, the force along the extension direction of the sub-virtual pad 133 decomposed by the external force F is small, so that the external force F is not easy to cause the sub-virtual pad 133 to be displaced along the extension direction of the sub-virtual pad 133, so that the binding pulling force and the binding effect between the display substrate 120 and the flexible substrate 110 are improved.

[0098] For example, in the correspondingly provided virtual pad 130 and the first side 1121, the included angle between the extending direction of the sub-virtual pad 133 and the first side 1121 is 80°, 85°, 90°, 95°, 100° or any value between 80° and 100°.

[0099] Exemplarily, the shape of the sub-virtual pad 133 can be strip-shaped ( Figure 2 ), "L"-shaped ( Fig. 9 and Fig.12 ), "T"-shaped ( Fig.10 and Fig.13 ), "square frame"-shaped ( Fig.11 and Fig.14 ) or other shapes, which is beneficial for the sub-virtual pad 133 to adapt to different outer shapes of the flexible substrate 110, better resist external forces, and improve the bonding stability. The embodiments of the present application do not limit the shape of the sub-virtual pad 133.

[0100] Exemplarily, in the correspondingly provided virtual pad 130 and the first side 1121, the included angle between the extending direction of the sub-virtual pad 133 and the first side 1121 is 90°, so that the bonding pulling force and the bonding effect between the display substrate 120 and the flexible substrate 110 are the best. The principle has been described and will not be elaborated here.

[0101] Exemplarily, the distance between two adjacent sub-virtual pads 133 (the first gap and / or the second gap in the following embodiments) ranges from 10 μm to 200 μm, which can avoid the distance being too small, is beneficial for reducing the bubbles in the conductive adhesive and increasing the contact area between the conductive adhesive and the virtual pad 130. In addition, it can also avoid the distance being too large, which is beneficial for increasing the number of sub-virtual pads 133 provided, increasing the pulling force of the flexible substrate 110, and improving the bonding stability between the display substrate 120 and the flexible substrate 110.

[0102] For example, the distance between two adjacent sub-virtual pads 133 can be 10 μm, 30 μm, 50 μm, 100 μm, 150 μm, 200 μm or any value between 10 μm and 200 μm.

[0103] Exemplarily, in the same virtual pad 130, the number of sub-virtual pads 133 ranges from 3 to 10. For example, the number of sub-virtual pads 133 in the same virtual pad 130 can be 3, 5, 7, 10 or any value between 3 and 10.

[0104] In some embodiments, refer to Figure 4aThe virtual pad 130 includes a first virtual pad 131, which is disposed on the flexible substrate 110. The surface of the first virtual pad 131 facing away from the flexible substrate 110 and the display substrate 120 may be connected by a conductive adhesive.

[0105] In some embodiments, see Figure 5 The virtual pad 130 includes a second virtual pad 132, which is disposed on the display substrate 120. The surface of the second virtual pad 132 facing away from the display substrate 120 and the flexible substrate 110 may be connected by conductive adhesive.

[0106] In some embodiments, see Figure 4a and Figure 5 The virtual pad 130 includes a first virtual pad 131 and a second virtual pad 132. The first virtual pad 131 is disposed on the flexible substrate 110, and the second virtual pad 132 is disposed on the display substrate 120. The flexible substrate 110 and the display substrate 120 are connected via the first virtual pad 131 and the second virtual pad 132. For example, the first virtual pad 131 and the second virtual pad 132 are connected via a conductive adhesive.

[0107] The virtual pad 130 may include at least one of a first virtual pad 131 and a second virtual pad 132. The embodiment of the present application is described by taking the virtual pad 130 including the first virtual pad 131 and the second virtual pad 132 as an example.

[0108] Exemplarily, the conductive adhesive may be anisotropic conductive film (ACF for short).

[0109] Exemplarily, the surface of the first virtual pad 131 facing away from the flexible substrate 110 and the surface of the second virtual pad 132 facing away from the display substrate 120 are arranged opposite to each other along the thickness direction of the display substrate 120, and the surface of the first virtual pad 131 facing away from the flexible substrate 110 and the surface of the second virtual pad 132 facing away from the display substrate 120 are connected by conductive glue.

[0110] For example, see Figure 4a and Figure 5The sub-virtual pad 133 of the first virtual pad 131 is a first sub-virtual pad 1331, and a first gap is provided between two adjacent first sub-virtual pads 1331; the sub-virtual pad 133 of the second virtual pad 132 is a second sub-virtual pad 1332, and a second gap is provided between two adjacent second sub-virtual pads 1332; the first sub-virtual pad 1331 is inserted in the second gap, and the second sub-virtual pad 1332 is inserted in the first gap, thereby facilitating increasing the pulling force of the flexible substrate 110 and improving the binding stability between the display substrate 120 and the flexible substrate 110.

[0111] For example, see Figure 4b In the same dummy pattern 140, the dimension of the dummy pattern 140 along the extension direction of the first pattern edge 141 gradually increases from the first extension portion 111 to the second extension portion 112, so that the outer contour of the dummy pattern 140 can be closer to the contours at the first edge 1121 and the second edge 1112, which is beneficial to increase the area of ​​the dummy pattern 140, that is, increase the area of ​​the dummy pad 130, thereby increasing the pulling force of the flexible substrate 110 and improving the binding stability between the display substrate 120 and the flexible substrate 110.

[0112] For example, see Figure 4a In the same virtual graphic 140 , the dimension of the virtual graphic 140 along the extension direction of the first graphic edge 141 is the same from the first extension portion 111 to the second extension portion 112 , so that the shape of the virtual graphic 140 is relatively simple, which is conducive to reducing the difficulty of setting the virtual pad 130 .

[0113] In some embodiments, the overall extension direction of the virtual pad 130 is the same as the extension direction of the first graphic edge 141 of the virtual pad 130, so that the external force F is not easy to cause the virtual pad 130 to displace along the extension direction of the virtual pad 130, so that the binding pulling force and the binding effect between the display substrate 120 and the flexible substrate 110 are better improved.

[0114] Exemplarily, in the corresponding virtual pad 130 and the first edge 1121, the angle between the extension direction of the virtual pad 130 and the first edge 1121 is in the range of 80°-100°. For example, in the corresponding virtual pad 130 and the first edge 1121, the angle between the extension direction of the virtual pad 130 and the first edge 1121 is 80°, 85°, 90°, 95°, 100° or any value between 80°-100°.

[0115] Exemplarily, the angle between the extension direction of the virtual pad 130 and the first direction a is in the range of 40°-50°, so that when the virtual pad 130 as a whole is subjected to an external force along the extension direction of the virtual pad 130, the external force is decomposed into a component force along the first direction a and a component force along the second direction b, the magnitudes of which are relatively consistent and small, thereby alleviating the stress concentration phenomenon of the virtual pad 130, which is beneficial to alleviating the peeling phenomenon between the display substrate 120 and the flexible substrate 110.

[0116] The positioning assembly 150 provided in the embodiment of the present application is described below.

[0117] In some embodiments, see Figure 2 A positioning assembly 150 is disposed between the first extension portion 111 and the display substrate 120 . By disposing the positioning assembly 150 , the difficulty of alignment between the first extension portion 111 and the display substrate 120 can be reduced.

[0118] For example, see Figure 4a and Figure 5 The positioning assembly 150 includes a first positioning member 151 and a second positioning member 152. The first positioning member 151 is arranged on the first extension portion 111, and the second positioning member 152 is arranged on the display substrate 120. The first positioning member 151 and the second positioning member 152 are plugged and connected along the thickness direction of the display substrate 120. The plugging method is relatively simple, thereby reducing the difficulty of matching between the first positioning member 151 and the second positioning member 152.

[0119] Exemplarily, one of the first positioning member 151 and the second positioning member 152 is a positioning protrusion, and the other is a positioning recess, and the positioning protrusion is inserted into the positioning recess. For example, the first positioning member 151 can be a cross protrusion ( Figure 4a ), the second positioning member 152 may be a cross recess ( Figure 5 ).

[0120] Exemplarily, the extension length of the first extension portion 111 along the second direction b may be greater than the extension length of the first extension portion 111 along the first direction a, thereby facilitating a narrow frame of the display device.

[0121] For example, see Figure 2 The dummy pads 130 and the positioning components 150 are arranged along the second direction b, which is beneficial to improving the arrangement freedom of the dummy pads 130 and the positioning components 150, and is also beneficial to a narrow frame of the display device.

[0122] For example, see Figure 2At least part of the dummy pads 130 are located on the side of the positioning component 150 away from the center line AB. In this way, the external force can be buffered and offset at least partly on the outside of the positioning component 150 to reduce the influence of the external force on the positioning component 150, thereby making it difficult for the flexible substrate 110 and the display substrate 120 at the positioning component 150 to separate, so that the first positioning member 151 and the second positioning member 152 of the positioning component 150 can be stably plugged.

[0123] For example, see Figure 3 At least part of the virtual pad 130 is located on the side of the positioning component 150 facing the center line AB, which is beneficial for making the positioning component 150 closer to the edges on both sides of the first extension portion 111 along the second direction b, and is beneficial for reducing the distribution interference of the positioning component 150 on at least part of the virtual pad 130 and the signal terminal 160.

[0124] The auxiliary dummy pad 170 provided in the embodiment of the present application is described below.

[0125] In some embodiments, see Figure 2 The display panel 100 further includes an auxiliary dummy pad 170, which may have the same function as the dummy pad 130, and may increase the contact area between the flexible substrate 110 and the display substrate 120, thereby increasing the pull-out force of the flexible substrate 110 and improving the binding stability between the display substrate 120 and the flexible substrate 110. The auxiliary dummy pad 170 may not play an electrical role, and therefore, the conductive glue at the auxiliary dummy pad 170 may be replaced by a non-conductive colloid.

[0126] For example, see Figure 2 The auxiliary virtual pad 170 is located on the side of the positioning component 150 toward the center line AB, and the auxiliary virtual pad 170 extends along the first direction a. The extension directions of the auxiliary virtual pad 170 and the signal terminal 160 can be the same, which is beneficial to reducing the area occupied by the auxiliary virtual pad 170 along the second direction b, thereby facilitating the setting of more auxiliary virtual pads 170 and signal terminals 160, and facilitating the improvement of the pad density on the first extension portion 111.

[0127] Among them, at least one of the virtual pad 130 and the auxiliary virtual pad 170 may be provided. For example, at least one of the virtual pad 130 and the auxiliary virtual pad 170 may be provided on the side of the positioning component 150 facing the center line AB, and by providing the virtual pad 130 and / or the auxiliary virtual pad 170 between the signal terminal 160 and the positioning component 150, it is helpful to prevent water vapor from corroding the signal terminal 160, thereby forming a better protection for the signal terminal 160.

[0128] In the implementation manner where the dummy pads 130 and the auxiliary dummy pads 170 are provided at the same time, the pulling force of the flexible substrate 110 can be better increased, and the binding stability between the display substrate 120 and the flexible substrate 110 can be improved.

[0129] The signal terminal 160 provided in the embodiment of the present application is described below.

[0130] In some embodiments, see Figure 2 A signal terminal 160 is disposed between the first extension portion 111 and the display substrate 120, and the signal terminal 160 and the dummy pad 130 are arranged along the second direction b, thereby facilitating the improvement of the arrangement freedom of the dummy pad 130 and the signal terminal 160, and also facilitating a narrow frame of the display device.

[0131] Exemplarily, the signal terminal 160 is located on the side of at least part of the virtual pad 130 facing the center line AB, so that the external force can be buffered and offset at least partially on the outside of the signal terminal 160 to reduce the influence of the external force on the signal terminal 160, thereby facilitating that the flexible substrate 110 and the display substrate 120 at the signal terminal 160 are not easily separated, so that the first signal terminal 161 and the second signal terminal 162 can be stably electrically connected.

[0132] For example, see Figure 4a and Figure 5 The signal terminal 160 includes a first signal terminal 161 and a second signal terminal 162. The first signal terminal 161 is arranged on the first extension portion 111, and the second signal terminal 162 is arranged on the display substrate 120. The surface of the first signal terminal 161 away from the first extension portion 111 and the surface of the second signal terminal 162 away from the display substrate 120 are arranged opposite to each other along the thickness direction of the display substrate 120. The first signal terminal 161 and the second signal terminal 162 can be electrically connected by conductive glue, thereby realizing signal transmission between the flexible substrate 110 and the display substrate 120.

[0133] Exemplarily, the extension length of the first signal terminal 161 is greater than the extension length of the second signal terminal 162, and the first signal terminal 161 can extend to the second extension portion 112, which is beneficial to reducing the connection difficulty between the first signal terminal 161 and the second signal terminal 162, and can also reduce the risk of short circuit caused by overflow of conductive glue.

[0134] Exemplarily, the extension length of the first signal terminal 161 ranges from 0.4 mm to 1 mm, thereby preventing the extension length of the first signal terminal 161 from being too short, which is beneficial to the connection between the first signal terminal 161 and the second signal terminal 162, and preventing the extension length of the first signal terminal 161 from being too long, which is beneficial to the narrow frame of the display device. For example, the extension length of the first signal terminal 161 is 0.4 mm, 0.6 mm, 0.8 mm, 1.0 mm, or any value between 0.4 mm and 1 mm.

[0135] Exemplarily, the extension length of the second signal terminal 162 ranges from 0.25 mm to 0.8 mm, thereby preventing the extension length of the second signal terminal 162 from being too short, which is beneficial to the connection between the first signal terminal 161 and the second signal terminal 162, and preventing the extension length of the second signal terminal 162 from being too long, which is beneficial to the narrow frame of the display device. For example, the extension length of the second signal terminal 162 is 0.25 mm, 0.4 mm, 0.6 mm, 0.8 mm, or any value between 0.25 mm and 0.8 mm.

[0136] See also Figure 4a In the embodiment where the virtual pad 130 includes the first virtual pad 131, the extension length of the first signal terminal 161 is L1, the first graphic edge 141 of the first virtual pad 131 has an angle θ with the first direction a, and the length range of the first graphic edge 141 of the first virtual pad 131 is 0.9*L1 / cosθ-1.1*L1 / cosθ, so that the length of the first graphic edge 141 of the first virtual pad 131 can be avoided to be too small, so that the binding pull-out force and the binding effect between the display substrate 120 and the flexible substrate 110 are better improved. In addition, the length of the first graphic edge 141 of the first virtual pad 131 can be avoided to be too large, which is conducive to the narrow frame of the display device. For example, the length of the first graphic edge 141 of the first virtual pad 131 is 0.9*L1 / cosθ, 1*L1 / cosθ, 1.1*L1 / cosθ, or any value between 0.9*L1 / cosθ-1.1*L1 / cosθ.

[0137] For example, the area range of the dummy pattern 140 of the first dummy pad 131 is 0.81*L1 2 / cosθ 2 -1.21*L1 2 / cosθ 2, so that the area of ​​the dummy pattern 140 of the first dummy pad 131 can be prevented from being too small, so that the binding pull-out force and the binding effect between the display substrate 120 and the flexible substrate 110 are better improved. In addition, the area of ​​the dummy pattern 140 of the first dummy pad 131 can be prevented from being too large, which is beneficial to the narrow frame of the display device. For example, the area of ​​the dummy pattern 140 of the first dummy pad 131 can be 0.81*L1 2 / cosθ 2 , 0.9*L1 2 / cosθ 2 , 1*L1 2 / cosθ 2 , 1.21*L1 2 / cosθ 2 or between 0.81*L1 2 / cosθ 2 -1.21*L1 2 / cosθ 2 Any value in between.

[0138] See also Figure 5 In the embodiment where the virtual pad 130 includes the second virtual pad 132, the extension length of the second signal terminal 162 is L2, the first graphic edge 141 of the second virtual pad 132 has an angle θ with the first direction a, and the length range of the first graphic edge 141 of the second virtual pad 132 is 0.9*L2 / cosθ-1.1*L2 / cosθ, so that the length of the first graphic edge 141 of the second virtual pad 132 can be avoided to be too small, so that the binding pull-out force and the binding effect between the display substrate 120 and the flexible substrate 110 are better improved. In addition, the length of the first graphic edge 141 of the second virtual pad 132 can be avoided to be too large, which is conducive to the narrow frame of the display device. For example, the length of the first graphic edge 141 of the second virtual pad 132 is 0.9*L2 / cosθ, 1*L2 / cosθ, 1.1*L2 / cosθ or any value between 0.9*L2 / cosθ-1.1*L2 / cosθ.

[0139] For example, the area range of the dummy pattern 140 of the second dummy pad 132 is 0.81*L2 2 / cosθ 2 -1.21*L2 2 / cosθ 2, so that the area of ​​the dummy pattern 140 of the second dummy pad 132 can be prevented from being too small, so that the binding pull-out force and the binding effect between the display substrate 120 and the flexible substrate 110 are better improved. In addition, the area of ​​the dummy pattern 140 of the second dummy pad 132 can be prevented from being too large, which is beneficial to the narrow frame of the display device. For example, the area of ​​the dummy pattern 140 of the second dummy pad 132 can be 0.81*L2 2 / cosθ 2 , 0.9*L2 2 / cosθ 2 , 1*L2 2 / cosθ 2 , 1.21*L2 2 / cosθ 2 or between 0.81*L2 2 / cosθ 2 -1.21*L2 2 / cosθ 2 Any value in between.

[0140] The flexible substrate 110 provided in the embodiment of the present application is further described below.

[0141] For example, see Figure 1 and Figure 2 There are two first sides 1121, and the two first sides 1121 are arranged opposite to each other. The first side 1121 includes a first end close to the first extension portion 111 and a second end away from the first extension portion 111, and the second end is inclined relative to the first end toward the direction close to the center line AB, so that the width of the second extension portion 112 along the second direction b is small, which is conducive to improving the bending performance of the second extension portion 112.

[0142] For example, see Figure 3 The first extension portion 111 includes two second sides 1112 arranged opposite to each other along the second direction b. The second sides 1112 may extend along the first direction a, thereby facilitating reducing the difficulty of setting the second sides 1112. The angle d between the first side 1121 and the second side 1112 is in the range of 130°-140°. For example, the angle between the first side 1121 and the second side 1112 may be 130°, 133°, 135°, 137°, 140°, or any value between 130°-140°.

[0143] For example, see Figure 3The third extension portion 113 includes two third edges 1133 arranged opposite to each other along the second direction b, and the third edges 1133 may extend along the first direction a. For example, the third edge 1133 obliquely intersects with the first edge 1121. When the external force is transmitted from the third edge 1133 to the first edge 1121, the external force transmitted to the first edge 1121 may be decomposed into a component force parallel to the third edge 1133 and a component force perpendicular to the third edge 1133. When the angle e between the first edge 1121 and the third edge 1133 is in the range of 130°-140°, the component force parallel to the third edge 1133 and the component force perpendicular to the third edge 1133 may be relatively consistent in magnitude and both are relatively small, thereby alleviating the stress concentration phenomenon on the first edge 1121, which is conducive to alleviating the peeling phenomenon between the display substrate 120 and the flexible substrate 110.

[0144] For example, the included angle between the first side 1121 and the third side 1133 is 130°, 133°, 135°, 137°, 140°, or any value between 130° and 140°.

[0145] Exemplarily, the external force F along the extension direction of the first edge 1121 received by the first edge 1121 can be decomposed into a force component along the first direction a and a force component along the second direction b. When the angle between the first edge 1121 and the first direction a is in the range of 40°-50°, the force component along the first direction a and the force component along the second direction b can be made to be relatively consistent in magnitude and both relatively small, thereby alleviating the stress concentration phenomenon on the first edge 1121, which is conducive to alleviating the peeling phenomenon between the display substrate 120 and the flexible substrate 110. In an embodiment where the first direction a and the second direction b are perpendicular, the angle c between the first edge 1121 and the second direction b is in the range of 40°-50°.

[0146] For example, the angle between the first side 1121 and the first direction a is 40°, 43°, 45°, 47°, 50°, or any value between 40° and 50°.

[0147] In an embodiment where the first side 1121 is perpendicular to the first graphic side 141 , on the same side of the center line AB, the angle θ between the first graphic side 141 and the first direction a is equal to the angle c between the first side 1121 and the second direction b.

[0148] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0149] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0150] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: A flexible substrate, a display substrate and at least one dummy pad, wherein the flexible substrate comprises a first extension portion and a second extension portion connected to each other, the first extension portion and the second extension portion are arranged along a first direction, the first extension portion is arranged at one side of the thickness direction of the display substrate, the dummy pad is located between the first extension portion and the display substrate, and the first direction is perpendicular to the thickness direction of the display substrate; The display panel is provided with a center line extending along the first direction, the second extension portion includes a first edge extending in a direction away from the display substrate, the first edge intersects with the first direction, and the dummy pad and the first edge are correspondingly arranged on the same side of the center line; The outer boundary of the virtual pad is fitted to form a virtual figure. In the corresponding virtual pad and the first edge, the virtual figure includes a first figure edge located on one side of the extension direction of the first edge, the first figure edge is arranged close to the second extension portion, and the angle between the first figure edge and the first edge is in the range of 80°-100°.

2. The display panel according to claim 1, characterized in that: There are two first sides, and the two first sides are arranged opposite to each other in a second direction, and the second direction is perpendicular to the thickness direction of the display substrate and different from the first direction; Preferably, the first extension portion comprises two second sides arranged opposite to each other along the second direction, and the angle between the first side and the second side is in the range of 130°-140°; Preferably, the flexible substrate includes a third extension portion, the third extension portion is located on a side of the second extension portion away from the first extension portion, the third extension portion includes two third sides arranged opposite to each other along the second direction, and the angle between the first side and the third side is in the range of 130°-140°; Preferably, at least one of the second side and the third side extends along the first direction; Preferably, in the correspondingly arranged virtual pad and the first edge, the angle between the first graphic edge and the first edge is 90°; Preferably, the angle between the first graphic edge and the first direction is in the range of 40°-50°; Preferably, the first side includes a first end close to the first extension portion and a second end away from the first extension portion, and the second end is inclined relative to the first end toward a direction close to the center line; Preferably, the angle between the extension direction of the first side and the first direction is in the range of 40°-50°; Preferably, the first direction and the second direction are perpendicular.

3. The display panel according to claim 1, characterized in that: In the correspondingly arranged virtual pad and the first edge, the virtual pattern includes a second pattern edge located on one side of the extension direction of the first pattern edge, the second pattern edge is arranged close to the second extension portion, and the angle between the second pattern edge and the first direction is in the range of 40°-50°; Preferably, in the correspondingly arranged virtual pad and the first edge, the second graphic edge is parallel to the first edge.

4. The display panel according to any one of claims 1 to 3, characterized in that: The virtual pad includes a plurality of sub-virtual pads arranged at intervals; Preferably, in the correspondingly arranged virtual pads and the first side, the plurality of sub-virtual pads are arranged at intervals along the extension direction of the first side, and the included angle between the extension direction of the sub-virtual pads and the first side is in the range of 80°-100°; Preferably, in the correspondingly arranged virtual pad and the first side, the angle between the extension direction of the sub-virtual pad and the first side is 90°; Preferably, the distance between two adjacent sub-dummy pads is in the range of 10 μm to 200 μm; Preferably, in the same virtual pad, the number of sub-virtual pads ranges from 3 to 10. Preferably, each sub-dummy pad is configured to be in at least one of a strip shape, an "L" shape, a "T" shape, and a "U" shape.

5. The display panel according to claim 4, characterized in that: The virtual pad includes a first virtual pad and a second virtual pad, the first virtual pad is arranged on the flexible substrate, the second virtual pad is arranged on the display substrate, and the flexible substrate and the display substrate are connected via the first virtual pad and the second virtual pad; Preferably, the surface of the first virtual pad facing away from the flexible substrate and the surface of the second virtual pad facing away from the display substrate are arranged opposite to each other along the thickness direction of the display substrate; or, the sub-virtual pad of the first virtual pad is a first sub-virtual pad, and a first gap is provided between two adjacent first sub-virtual pads, and the sub-virtual pad of the second virtual pad is a second sub-virtual pad, and a second gap is provided between two adjacent second sub-virtual pads, and the first sub-virtual pad is inserted in the second gap, and the second sub-virtual pad is inserted in the first gap.

6. The display panel according to any one of claims 1 to 3, characterized in that: In the same virtual figure, the size of the virtual figure along the extension direction of the first figure edge gradually increases from the first extension part to the second extension part; Alternatively, in the same virtual pattern, the size of the virtual pattern along the extension direction of the first pattern edge is the same everywhere from the first extension portion to the second extension portion.

7. The display panel according to any one of claims 1 to 3, characterized in that: In the correspondingly arranged virtual pad and the first side, the angle between the extension direction of the virtual pad and the first side is in the range of 80°-100°; Preferably, in the correspondingly arranged virtual pad and the first side, an angle between an extension direction of the virtual pad and the first side is 90°; Preferably, the angle between the extension direction of the virtual pad and the first direction is in the range of 40°-50°.

8. The display panel according to any one of claims 1 to 3, characterized in that: A positioning component is disposed between the first extension portion and the display substrate, the dummy pads and the positioning component are arranged along a second direction, the second direction is perpendicular to the thickness direction of the display substrate and is different from the first direction, and at least part of the dummy pads are located on a side of the positioning component away from the center line; Preferably, the positioning assembly comprises a first positioning member and a second positioning member, the first positioning member is arranged on the first extension portion, the second positioning member is arranged on the display substrate, and the first positioning member and the second positioning member are plugged and connected along the thickness direction of the display substrate; Preferably, at least part of the virtual pads are located on a side of the positioning component facing the center line; Preferably, the display panel further comprises an auxiliary dummy pad, the auxiliary dummy pad is located on a side of the positioning component facing the center line, and the auxiliary dummy pad extends along the first direction.

9. The display panel according to any one of claims 1 to 3, characterized in that: A signal terminal is disposed between the first extension portion and the display substrate, and the signal terminal and the dummy pad are arranged along a second direction, the second direction is perpendicular to the thickness direction of the display substrate and is different from the first direction. The signal terminal is located on a side of at least a portion of the virtual pad facing the center line; Preferably, the signal terminal comprises a first signal terminal and a second signal terminal, the first signal terminal is arranged on the first extension portion, the second signal terminal is arranged on the display substrate, and a surface of the first signal terminal facing away from the first extension portion and a surface of the second signal terminal facing away from the display substrate are arranged opposite to each other along a thickness direction of the display substrate; Preferably, the extension length of the first signal terminal ranges from 0.4 mm to 1 mm; Preferably, the extension length of the second signal terminal ranges from 0.25 mm to 0.8 mm; Preferably, the virtual pad includes a first virtual pad, the first virtual pad is arranged on the flexible substrate, the extension length of the first signal terminal is L1, the first graphic edge of the first virtual pad has an angle θ with the first direction, the length range of the first graphic edge of the first virtual pad is 0.9*L1 / cosθ-1.1*L1 / cosθ, and / or the area range of the virtual graphic of the first virtual pad is 0.81*L1 2 / cosθ 2 -1.21*L1 2 / cosθ 2 ; Preferably, the virtual pad includes a second virtual pad, the second virtual pad is arranged on the display substrate, the extension length of the second signal terminal is L2, the first graphic edge of the second virtual pad has an angle θ with the first direction, the length range of the first graphic edge of the second virtual pad is 0.9*L2 / cosθ-1.1*L2 / cosθ, and / or the area range of the virtual graphic of the second virtual pad is 0.81*L2 2 / cosθ 2 -1.21*L2 2 / cosθ 2 .

10. A display device, characterized in that: A display panel comprising any one of claims 1 to 9.

Images