Display panel, reel and display device

Abstract

The application discloses a display panel, a reel and a display device. The display panel comprises a display area and a non-display area located at one side of the display area. The display area comprises a display surface and a non-display surface arranged oppositely. A first auxiliary part is located at the side of the non-display area away from the display area. The first auxiliary part comprises a fixing surface arranged on the same side as the non-display surface. At least one groove is arranged on the side of the first auxiliary part away from the display area, and the groove extends to the fixing surface of the first auxiliary part. The first auxiliary part serves as a winding starting end of the display panel. Thus, the problem of peeling of the end of the display panel from the reel can be solved.

Description

Technical Field

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

[0002] In the prior art, when a roll-up screen is used for a long time, the end of the roll-up screen is prone to debonding from the scroll and the roll-up screen is prone to failure. Summary of the Invention

[0003] The present application provides a display panel, a scroll, and a display device, which can improve the problem of debonding at the end of the display panel.

[0004] According to a first aspect of the present application, there is provided a display panel, comprising a display area and a non-display area located on one side of the display area, wherein the display area comprises a display surface and a non-display surface arranged opposite to each other; a first auxiliary portion is located on a side of the non-display area away from the display area, the first auxiliary portion comprising a fixed surface arranged on the same side as the non-display surface, and at least one groove is provided on a side of the first auxiliary portion away from the display area, the groove extending to the fixed surface of the first auxiliary portion; the first auxiliary portion serves as the starting end for winding the display panel.

[0005] In one embodiment, there are multiple grooves, and the multiple grooves are arranged along a first direction, and the first direction intersects with a second direction in which the display area and the non-display area are arranged.

[0006] Preferably, the first direction is perpendicular to a second direction in which the display area and the non-display area are arranged.

[0007] Preferably, the plurality of grooves include at least a first groove and a second groove, and the first groove and the second groove are spaced apart from each other; or, the plurality of grooves include at least an adjacent first groove and a second groove, and the first groove and the second groove are connected.

[0008] Preferably, the first groove and the second groove have different depths in the second direction, and the second direction is the direction in which the display area and the non-display area are arranged.

[0009] Preferably, the cross-sectional shapes of the plurality of grooves in a direction parallel to the display surface are all the same.

[0010] Preferably, the cross-sectional shape of the groove in a direction parallel to the display surface is rectangular.

[0011] In one embodiment, the groove further extends to a non-fixed surface of the first auxiliary portion, and the non-fixed surface is disposed on the same side as the display surface.

[0012] Preferably, in a direction from the non-display area toward the display area, a thickness of at least a portion of a side of the first auxiliary portion away from the display area gradually increases.

[0013] Preferably, the maximum thickness of the first auxiliary portion is equal to the maximum thickness of the display panel.

[0014] Preferably, a surface of the first auxiliary portion that is on the same side as the display surface is in the same plane as the display surface.

[0015] Preferably, a hole is provided on one side of the fixing surface of the first auxiliary portion, and an extending direction of the hole is the same as a thickness direction of the first auxiliary portion.

[0016] Preferably, the hole portion is a through hole or a blind hole.

[0017] Preferably, the material of the first auxiliary part includes magnetic material.

[0018] According to a second aspect of the present application, a display panel is provided, comprising a display area and a non-display area located on one side of the display area, wherein the display area comprises a display surface and a non-display surface arranged opposite to each other; a first auxiliary portion is located on a side of the non-display area away from the display area, the first auxiliary portion comprising at least one convex portion on a side away from the display area; the first auxiliary portion serves as a starting end for winding the display panel.

[0019] In one embodiment, there are a plurality of convex portions, and the plurality of convex portions are arranged along a first direction, and the first direction intersects with a second direction in which the display area and the non-display area are arranged.

[0020] Preferably, the first direction is perpendicular to a second direction in which the display area and the non-display area are arranged.

[0021] Preferably, the plurality of convex portions include at least a first convex portion and a second convex portion, and the first convex portion and the second convex portion are spaced apart from each other, or the first convex portion and the second convex portion are adjacent to each other.

[0022] Preferably, the first convex portion and the second convex portion have different widths in the second direction.

[0023] Preferably, the cross-sectional shapes of the plurality of protrusions in a direction parallel to the display surface are all the same.

[0024] Preferably, the cross-sectional shape of the convex portion in a direction parallel to the display surface is rectangular.

[0025] In a third aspect of the present application, a reel is provided for winding up a display panel described in any one of the above embodiments, the reel comprising: a reel body, the surface of the reel body comprising a step surface, the length direction of the step surface being parallel to the axial direction of the reel body; and a second auxiliary portion comprising at least one extension portion protruding from the step surface.

[0026] In one embodiment, there are multiple extension portions, and the multiple extension portions are arranged along the axial direction of the reel body, and the multiple extension portions include at least a first extension portion and a second extension portion; wherein the first extension portion and the second extension portion are spaced apart, and the length of the first extension portion is equal to or different from the length of the second extension portion in the circumferential direction of the reel body, or the first extension portion and the second extension portion are adjacent to each other, and the length of the first extension portion is different from the length of the second extension portion in the circumferential direction of the reel body.

[0027] In one embodiment, in the circumferential direction of the reel body, the thickness of at least a portion of the second auxiliary portion gradually increases as the end away from the step surface approaches the step surface.

[0028] Preferably, the maximum thickness of the second auxiliary portion is equal to the maximum thickness of the display panel.

[0029] Preferably, the surface of the extension portion on a side close to the step surface is smoothly connected to the surface of the reel body.

[0030] Preferably, the reel further comprises a convex post protruding from the surface of the reel body, and when the display panel is wound on the reel, the convex post is embedded in the hole portion on the first auxiliary portion.

[0031] Preferably, the protrusion is integrally formed with the reel body.

[0032] In one embodiment, the reel is magnetic.

[0033] Preferably, the reel body and the second auxiliary part are integrally formed.

[0034] A fourth aspect of the present application provides a display device comprising the display panel according to any one of the above embodiments, and / or the scroll according to any one of the above embodiments.

[0035] The beneficial effects are as follows: First, the display panel of the present application includes a first auxiliary portion, and at least one groove is provided on a side of the first auxiliary portion away from the display area. The groove extends to the fixing surface of the first auxiliary portion. The groove makes the starting end of the first auxiliary portion have a non-linear uneven structure. This uneven structure can improve the problem of debonding when the display panel is fixed to the reel.

[0036] Secondly, the display panel of the present application includes a first auxiliary part, and at least one convex part is provided on the side of the first auxiliary part away from the display area. The convex part makes the structure of the starting end of the first auxiliary part a non-linear uneven structure. The uneven structure can improve the problem of debonding when the display panel is fixed on the scroll.

[0037] On the third aspect, the scroll of the present application includes a scroll body and a second auxiliary part, and the second auxiliary part includes at least one extension part protruding from the step surface of the scroll body. The extension part can be spliced ​​with the first auxiliary part in the above-mentioned display panel, which helps to improve the problem of debonding when the display panel is fixed on the scroll. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0039] Figure 1 It is a schematic diagram of the cross-sectional structure of the display panel and the scroll along the radial direction of the scroll in the prior art;

[0040] Figure 2 It is a structural diagram of a scroll in the prior art;

[0041] Figure 3 2 is a schematic top view of the structure of the first embodiment of the display panel of the present application;

[0042] Figure 4 yes Figure 3 The schematic diagram of the cross-sectional structure in the thickness direction of the panel is shown in FIG.

[0043] Figure 5 2 is a schematic top view of the structure of the display panel according to the twenty-first embodiment of the present application;

[0044] Figure 6 yes Figure 3 A schematic cross-sectional view of an embodiment of the middle region M to N;

[0045] Figure 7 is a schematic top view of the structure of the third embodiment of the display panel of the present application;

[0046] Figure 8 yes Figure 7 The schematic diagram of the cross-sectional structure in the thickness direction of the panel is shown in FIG.

[0047] Figure 9 2 is a schematic top view of the structure of a fourth embodiment of the display panel of the present application;

[0048] Figure 10 It is a structural schematic diagram of a scroll embodiment of the present application;

[0049] Figure 11 yes Figure 10 A schematic top view of the structure of a middle scroll in one embodiment;

[0050] Figure 12 yes Figure 10 A schematic top view of another embodiment of the middle scroll;

[0051] Figure 13 yes Figure 11 A schematic cross-sectional view of an embodiment of the middle region P to Q;

[0052] Figure 14 It is a structural schematic diagram of the display device of this application. DETAILED DESCRIPTION

[0053] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0054] It should be noted that the terms "first" and "second" in this application are only used for descriptive purposes and should not be understood as indicating or suggesting relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0055] In the prior art, see Figure 1 and Figure 2 The end of the display panel 10 will be rolled up on the reel 20 with the step portion of the reel 20 as the starting end. The end of the display panel 10 is fixed to the reel 20 by gluing. However, since the material of the display panel 10 itself has a certain bending rigidity, it is easy to rebound after long-term use, causing debonding between the end of the display panel and the reel, or the inorganic layer of the display panel is subjected to excessive force and cracks and failure.

[0056] See also Figure 3 and Figure 4 The present application provides a display panel 10, which includes a display area AA and a non-display area NA located on one side of the display area AA. The display panel 10 also includes a display body 110 and a first auxiliary part 120; the display body 110 is located in the display area AA, the display area AA includes a display surface F1 and a non-display surface F2 arranged opposite to each other, and the non-display area NA is connected to the display area AA through a first side wall S1; the first auxiliary part 120 is located in the non-display area NA, wherein the first auxiliary part 120 serves as the starting end of the winding of the display panel 10, and the first auxiliary part 120 includes a fixed surface F3 and a non-fixed surface F4 arranged opposite to each other, the fixed surface F3 and the non-display surface F2 are arranged on the same side, and at least one groove G is provided on a side wall of the first auxiliary part 120 away from the display area AA, and the groove G extends to the fixed surface F3 of the first auxiliary part 120, that is, the groove G is connected to the outside world on one side of the fixed surface F3.

[0057] Specifically, the first auxiliary portion 120 is located in the non-display area NA and is primarily secured to the reel using adhesive or other means. Therefore, it does not affect the winding and unwinding of the display main body 110 on the reel, and serves to secure the entire display panel 10 to the reel. The non-display area NA and the display area AA are connected by a first sidewall S1, meaning that the first auxiliary portion 120 and the display main body 110 are connected by the first sidewall S1. Specifically, the first auxiliary portion 120 and the display main body 110 can be integrally formed, for example, they can be fabricated from the same substrate; alternatively, the first auxiliary portion 120 and the display main body 110 can be spliced ​​and secured together. The fixing surface F3 of the first auxiliary part 120 is provided with at least one groove G. The fixing surface F3 is used for fixing the first auxiliary part 120 to the scroll and is located on the same side of the display panel 10 as the non-display surface F2 of the display main body 110. The groove G can prevent the fixing surface F3 of the first auxiliary part 120 and the side wall of the first auxiliary part 120 facing away from the display main body 110 from forming a flat surface. Ultimately, the fixing surface F3 of the first auxiliary part 120 away from the display main body 110 will have an uneven structure composed of multiple fold lines or curves, thereby increasing the contact area. The advantage of such a structure is that once the starting end tends to debond, the uneven structure will have a blocking effect on the tendency and can prevent it from directly disengaging along a straight path, thereby reducing the probability of debonding when the display panel 10 is fixed on the scroll. At the same time, the display panel 10 usually also includes an inorganic layer. The uneven structure disperses the stress on the display panel 10, thereby improving the problem of excessive force on the inorganic layer in the display panel 10 and further improving the problem of cracks caused by excessive force on the inorganic layer.

[0058] In one embodiment, see Figure 3 and Figure 5 The grooves G are arranged in a first direction X that intersects a second direction Y along which the display area AA and the non-display area NA are arranged. The grooves G include at least a first groove G1 and a second groove G2. The provision of multiple grooves G can further improve the effect of preventing debonding between the display panel 10 and the reel, as well as the effect of preventing excessive stress on the inorganic layer of the display panel 10.

[0059] Preferably, the first direction X is perpendicular to the second direction Y in which the display area AA and the non-display area NA are arranged, so that the plurality of grooves G are distributed more evenly.

[0060] See Figure 3 The first groove G1 and the second groove G2 are arranged at intervals. Through the interval arrangement of the first groove G1 and the second groove G2, regardless of whether the depths of the first groove G1 and the second groove G2 are set to be the same or different, such a structure makes the starting end of the first auxiliary portion 120 uneven, thereby reducing the probability of debonding after the display panel 10 is fixed on the reel.

[0061] See Figure 5 When the first groove G1 and the second groove G2 are connected, the adjacent grooves G can make the starting end of the first auxiliary portion 120 uneven, thereby reducing the probability of debonding after the display panel 10 is fixed on the reel.

[0062] In one embodiment, see Figure 5 The first groove G1 and the second groove G2 have different depths in the second direction Y, which is the direction in which the display area AA and the non-display area NA are arranged. The grooves G of varying depths increase the unevenness of the structure, further reducing the probability of debonding after the display panel 10 is secured to the reel.

[0063] In one embodiment, the cross-sectional shapes of the plurality of grooves G in a direction parallel to the display surface F1 are all the same, which can reduce the difficulty of manufacturing the grooves G and improve the efficiency of manufacturing the grooves G.

[0064] In one embodiment, the cross-section of the groove G parallel to the display surface F1 is rectangular. Since the closer the included angle between multiple straight or curved lines is to 180 degrees, the more likely it is to cause debonding, while the closer it is to 0 degrees, the lower the structural strength of the first auxiliary portion 120. Therefore, the rectangular shape, with all sides having 90-degree included angles and being perpendicular to each other, can improve both structural strength and resistance to debonding.

[0065] Of course, in some other embodiments, the cross-sectional shape of the groove G in the direction parallel to the display surface F1 may also be other shapes, such as semicircular, trapezoidal, etc. This application does not impose any limitation on the specific shape.

[0066] In one embodiment, the groove G further extends to the non-fixed surface F4 of the first auxiliary portion 120. In other words, the shapes of the first auxiliary portion 120 viewed from the fixed surface F3 and the non-fixed surface F4 are the same, which can reduce the difficulty of manufacturing.

[0067] Of course, in another embodiment, the groove G may not extend to the non-fixed surface F4 of the first auxiliary portion 120. In this case, the shape of the first auxiliary portion 120 as viewed from the fixed surface F3 and the non-fixed surface F4 is different: the shape having a groove as viewed from the fixed surface F3, and the shape having a rectangular shape as viewed from the non-fixed surface F4.

[0068] In one embodiment, see Figure 6 In the direction from the non-display area NA toward the display area AA, the thickness of at least the portion of the first auxiliary portion 120 away from the display area AA gradually increases. The thickness of the first auxiliary portion 120 is aligned with the thickness of the display body 110. This means that the thickness of the first auxiliary portion 120 gradually decreases away from the display area AA. The thinner portions have lower rigidity and are less susceptible to debonding, further reducing the likelihood of debonding at the ends of the display panel 10.

[0069] Of course, in some other embodiments, the thickness of the first auxiliary portion 120 may be uniform in the direction close to the display body 110 , and this application does not impose any limitation thereto.

[0070] In one embodiment, see Figure 4 The maximum thickness of the first auxiliary portion 120 is equal to the maximum thickness of the display panel 10. This can ensure the structural strength of the first auxiliary portion 120 and facilitate synchronous preparation.

[0071] Of course, in some other embodiments, the maximum thickness of the first auxiliary portion 120 may also be smaller than the maximum thickness of the display panel 10 .

[0072] In one embodiment, see Figure 4 The surface of the first auxiliary portion 120 on the same side as the display surface F1 is in the same plane as the display surface F1. This makes the transition between the first auxiliary portion 120 and the display body 110 smoother and less likely to cause cracks.

[0073] Of course, in some other embodiments, the surface of the first auxiliary portion 120 that is on the same side as the display surface F1 may not be on the same plane as the display surface F1.

[0074] In one embodiment, see Figure 5 A hole H1 is provided on one side of the fixing surface F3 of the first auxiliary portion 120. The hole H1 extends in the same direction as the thickness of the first auxiliary portion 120. By providing the hole H1, the display panel 10 can be limited in position by the protrusion passing through the hole H1 in the reel having the protrusion structure.

[0075] Optionally, the hole H1 is a through hole or a blind hole. Whether it is a through hole or a blind hole can be determined according to the height of the protruding structure in the reel or the difficulty of the process, and this application does not impose any restrictions.

[0076] Of course, in some other embodiments, the first auxiliary portion 120 may not be provided with a hole portion.

[0077] In one embodiment, the material of the first auxiliary portion 120 includes a magnetic material. In this way, the first auxiliary portion 120 can be adsorbed by the magnetic reel, further reducing the probability of debonding at the end of the display panel 10. The magnetic material includes iron, cobalt, nickel, etc.

[0078] In some other embodiments, the material of the first auxiliary portion 120 may not be magnetic material.

[0079] See also Figure 7 and Figure 8 The present application also provides a display panel 10, which includes a display area AA and a non-display area NA located on one side of the display area AA. The display panel 10 also includes a display body 110 and a first auxiliary portion 120. The display body 110 is located in the display area AA, wherein the display area AA includes a display surface F1 and a non-display surface F2 arranged opposite to each other, and the non-display area NA is connected to the display area AA through a first side wall S1; the first auxiliary portion 120 is located on a side of the non-display area NA away from the display area AA, and the first auxiliary portion 120 includes at least one convex portion P on the side away from the display area AA; the first auxiliary portion 120 serves as the starting end of the winding of the display panel 10.

[0080] Specifically, the first auxiliary portion 120 is located in the non-display area NA and is primarily secured to the reel using adhesive or other means. Therefore, it does not affect the winding and unwinding of the display main body 110 on the reel, and serves to secure the entire display panel 10 to the reel. The non-display area NA and the display area AA are connected by a first sidewall S1, meaning that the first auxiliary portion 120 and the display main body 110 are connected by the first sidewall S1. Specifically, the first auxiliary portion 120 and the display main body 110 can be integrally formed, for example, they can be fabricated from the same substrate; alternatively, the first auxiliary portion 120 and the display main body 110 can be spliced ​​and secured together. The fixing surface F3 of the first auxiliary part 120 is provided with at least one convex portion P. The fixing surface F3 is used for fixing the first auxiliary part 120 to the scroll and is located on the same side of the display panel 10 as the non-display surface F2 of the display main body 110. The convex portion P can prevent the fixing surface F3 of the first auxiliary part 120 and the side wall of the first auxiliary part 120 away from the display main body 110 from forming a flat surface. As a result, the side of the fixing surface F3 of the first auxiliary part 120 away from the display main body 110 is an uneven structure composed of multiple fold lines or curves. , thereby increasing the contact area. The advantage of such a structure is that once the starting end tends to debond, the uneven structure will have a blocking effect on the trend, which can prevent it from directly detaching along a straight path, reducing the probability of debonding when the display panel 10 is fixed on the scroll. At the same time, the display panel 10 usually also includes an inorganic layer. The uneven structure disperses the stress on the display panel 10, thereby improving the problem of excessive force on the inorganic layer in the display panel 10, and further improving the crack problem caused by excessive force on the inorganic layer.

[0081] In one embodiment, see Figure 7 and Figure 9 The number of protrusions P is multiple, and the multiple protrusions P are arranged along a first direction X. The first direction X intersects with a second direction Y along which the display area AA and the non-display area NA are arranged. Providing multiple protrusions P can further improve the effect of improving debonding between the display panel 10 and the reel, as well as improving the effect of improving excessive stress on the inorganic layer of the display panel 10.

[0082] Preferably, the first direction X is perpendicular to the second direction Y in which the display area AA and the non-display area NA are arranged, so that the plurality of grooves G are distributed more evenly.

[0083] In one embodiment, see Figure 7The multiple protrusions P include at least a first protrusion P1 and a second protrusion P2, and the first protrusion P1 and the second protrusion P2 are arranged at intervals. Through the interval setting of the first protrusion P1 and the second protrusion P2, regardless of whether the widths of the first protrusion P1 and the second protrusion P2 are set to be the same or different, such a structure makes the starting end of the first auxiliary portion 120 uneven, thereby reducing the probability of debonding after the display panel 10 is fixed on the reel.

[0084] In one embodiment, see Figure 9 When the first convex portion P1 and the second convex portion P2 are adjacent to each other, the adjacent grooves G can make the starting end of the first auxiliary portion 120 uneven, thereby reducing the probability of debonding after the display panel 10 is fixed to the reel.

[0085] In one embodiment, see Figure 9 The first protrusion P1 and the second protrusion P2 have different widths in the second direction Y. The protrusions P of different widths increase the unevenness of the structure, thereby further reducing the probability of debonding after the display panel 10 is fixed on the reel.

[0086] In one embodiment, the cross-sectional shapes of the plurality of protrusions P in a direction parallel to the display surface F1 are all the same, which can reduce the difficulty of manufacturing the protrusions P and improve the efficiency of manufacturing the protrusions P.

[0087] In one embodiment, the cross-sectional shape of the protrusion P in the direction parallel to the display surface F1 is a rectangle. Since the closer the angle between the multiple straight lines or curves is to 180 degrees, the more likely it is to cause debonding, and the closer it is to 0 degrees, the lower the structural strength of the first auxiliary part 120 will be. Therefore, according to the characteristics that the angles of the rectangular sides are all 90 degrees and perpendicular to each other, the structural strength can be improved on the one hand, and the debonding can be improved on the other hand. Figure 10 The present application further provides a reel 30 for winding the display panel 10 in any of the above embodiments. The reel 30 includes a reel body 210 and a second auxiliary portion 220. The reel body 210 includes a stepped surface S2, the length direction of which is parallel to the axial direction of the reel body 210. The second auxiliary portion 220 includes at least one extension E protruding from the stepped surface S2.

[0088] Specifically, the present application sets a second auxiliary portion 220 on the step surface S2 of the reel body 210, and the second auxiliary portion 220 includes at least one extension portion E. Figure 3 and Figure 7 The display panel 10 in the embodiment of the present invention can be connected to the extension E of the scroll 30. Figure 3 The groove G of the first auxiliary portion 120 in the display panel 10 can also be spliced ​​with the area surrounded by multiple extension portions E. Figure 7The convex portion P of the first auxiliary portion 120 in the display panel 10 is spliced, and the technical effect of the display panel 10 in the above embodiment can be used to improve the problem of debonding of the display panel 10, as well as the problem of crack failure caused by excessive stress on the inorganic layer of the display panel 10. It should be noted that the convex design of this application is only a description of the structure. In the actual manufacturing process of the scroll 30, it can be prepared by an integrated molding method, that is, on the basis of the existing scroll, the second auxiliary portion and its extension portion can be obtained by cutting or etching. The specific preparation method is not limited in this application.

[0089] In one embodiment, see Figure 10 and Figure 11 The extension portions E are arranged in a plurality along the axial direction of the reel body 210 and include at least a first extension portion E1 and a second extension portion E2. The provision of multiple extension portions E can further improve the effect of improving debonding between the display panel 10 and the reel, as well as the effect of improving the effect of reducing excessive stress on the inorganic layer of the display panel 10.

[0090] See Figure 3 and Figure 11 The first extension E1 and the second extension E2 are spaced apart. Around the circumference of the reel body 210, the length of the first extension E1 and the second extension E2 may be equal or unequal. The spacing between the first extension E1 and the second extension E2 matches the spacing between the first groove G1 and the second groove G2, allowing the first auxiliary portion 120 and the second auxiliary portion 220 to be joined together.

[0091] Of course, see Figure 7 and Figure 11 The first extension portion E1 and the second extension portion E2 are spaced apart, matching the spacing between the first convex portion P1 and the second convex portion P2, so that the first auxiliary portion 120 and the second auxiliary portion 220 can be spliced ​​together. Figure 5 and Figure 12 The first extension E1 and the second extension E2 are adjacent to each other, and their lengths are different along the circumference of the reel body 210. When the first extension E1 and the second extension E2 are adjacent to each other and align with the first groove G1 and the second groove G2, the first auxiliary portion 120 and the second auxiliary portion 220 can be spliced ​​together.

[0092] See Figure 9 and Figure 12 When the first extension portion E1 is adjacent to the second extension portion E2 and is adjacent to and matched with the first convex portion P1 and the second convex portion P2, the first auxiliary portion 120 and the second auxiliary portion 220 can be spliced ​​together.

[0093] Of course, in some other embodiments, the second auxiliary part 220 of the scroll 30 and the first auxiliary part 120 of the display panel 10 may not be completely matched. As long as the structure at the starting end of the first auxiliary part 120 is uneven, even if the second auxiliary part 220 and the first auxiliary part 120 cannot be completely matched, the debonding problem can still be improved.

[0094] In one embodiment, see Figure 13 In the circumferential direction of the reel body 210, the thickness of at least a portion of the second auxiliary portion 220 that is away from the step surface S2 gradually increases as it approaches the step surface S2. Figure 6 and Figure 13 After the display panel 10 is rolled up on the reel 30, the thickness of at least part of the second auxiliary portion 220 away from the step surface S2 gradually increases as it approaches the step surface S2, which is equivalent to the thickness of the second auxiliary portion 220 gradually increasing in the direction away from the display area AA. The corresponding thickness of the first auxiliary portion 120 will become smaller and smaller. The smaller the thickness of the first auxiliary portion 120, the lower the rigidity, and the less likely it is to debond, which can further reduce the possibility of debonding at the end of the display panel 10.

[0095] Of course, in some other embodiments, the thickness of the second auxiliary portion 220 may be uniform in the direction close to the step surface S2, and this application does not impose any limitation thereto.

[0096] In one embodiment, the maximum thickness of the second auxiliary portion 220 is equal to the maximum thickness of the display panel 10. This ensures that when the display panel 10 is rolled up on the reel 30, the transition between the two is smoother.

[0097] Of course, in some other embodiments, the maximum thickness of the second auxiliary portion 220 may also be smaller than the maximum thickness of the display panel 10 .

[0098] In one embodiment, the surface of the extension portion E close to the step surface S2 is smoothly connected to the surface of the reel body 210. This can make the transition between each adjacent turn of the display panel 10 on the reel 30 smoother.

[0099] Of course, in some other embodiments, the surface of the extension portion E facing away from the second surface B2 may not be smoothly connected to the first surface B1.

[0100] In one embodiment, see Figure 5 and Figure 12 The reel 30 further includes a boss H2, which is protruding from the surface of the reel body 210. When the display panel 10 is wound on the reel 30, the boss H2 engages with the hole H1 in the first auxiliary portion 120. The combination of the hole H1 and the boss H2 achieves a position limiting effect on the display panel 10.

[0101] In one embodiment, the boss H2 is integrally formed with the reel body 210. This facilitates manufacturing and reduces the difficulty of manufacturing the boss H2.

[0102] Of course, in some other embodiments, the second auxiliary portion 220 may not be provided with a protruding column.

[0103] In one embodiment, the reel 30 is magnetic. Specifically, the reel 30 may be provided with a magnetic material or an electromagnetic induction coil may be provided in the reel 30 , so that the reel 30 is magnetic. In this way, when the first auxiliary portion 120 of the display panel 10 is made of a magnetic material, the first auxiliary portion 120 can be attracted to the reel 30 , thereby strengthening the connection strength between the reel 30 and the first auxiliary portion 120 .

[0104] In one embodiment, the reel body 210 and the second auxiliary portion 220 are integrally formed, which makes the manufacturing process simpler and more efficient.

[0105] See also Figure 14 The present application provides a display device 40 including a display panel 10 as in any of the above embodiments, and / or a scroll 30 as in any of the above embodiments.

[0106] Specifically, the display device 40 can be a terminal such as a curved screen mobile phone, a curved screen TV, etc., and this application does not impose any restrictions.

[0107] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display panel, characterized in that: The display panel includes a display area and a non-display area located on one side of the display area, wherein The display area includes a display surface and a non-display surface disposed opposite to each other; a first auxiliary portion, located on a side of the non-display area away from the display area, the first auxiliary portion including a fixing surface provided on the same side as the non-display surface, and at least one groove provided on a side of the first auxiliary portion away from the display area, the groove extending to the fixing surface of the first auxiliary portion; the first auxiliary portion serving as a winding starting point for the display panel; There are multiple grooves, and the multiple grooves are arranged along a first direction, and the first direction intersects with a second direction in which the display area and the non-display area are arranged; The plurality of grooves include at least a first groove and a second groove, and the first groove and the second groove are spaced apart from each other; or the plurality of grooves include at least an adjacent first groove and a second groove, and the first groove and the second groove are connected.

2. The display panel according to claim 1, wherein: The first direction is perpendicular to a second direction in which the display area and the non-display area are arranged.

3. The display panel according to claim 1, wherein: The first groove and the second groove have different depths in the second direction, and the second direction is a direction in which the display area and the non-display area are arranged.

4. The display panel according to claim 1, wherein: The cross-sectional shapes of the plurality of grooves in a direction parallel to the display surface are all the same.

5. The display panel according to claim 1, wherein: The cross-sectional shape of the groove in a direction parallel to the display surface is rectangular.

6. The display panel according to claim 1, wherein: The groove further extends to a non-fixed surface of the first auxiliary portion, and the non-fixed surface is arranged on the same side as the display surface.

7. The display panel according to claim 6, wherein: In a direction from the non-display area toward the display area, a thickness of at least a portion of a side of the first auxiliary portion away from the display area gradually increases.

8. The display panel according to claim 6, wherein: A maximum thickness of the first auxiliary portion is equal to a maximum thickness of the display panel.

9. The display panel according to claim 6, wherein: A surface of the first auxiliary portion that is on the same side as the display surface is in the same plane as the display surface.

10. The display panel according to claim 6, wherein: A hole is provided on one side of the fixing surface of the first auxiliary portion, and an extending direction of the hole is the same as a thickness direction of the first auxiliary portion.

11. The display panel according to claim 10, wherein: The hole portion is a through hole or a blind hole.

12. The display panel according to claim 6, wherein: The material of the first auxiliary portion includes a magnetic material.

13. A display panel, characterized in that: The display panel includes a display area and a non-display area located on one side of the display area, wherein the display area includes a display surface and a non-display surface arranged opposite to each other; a first auxiliary portion, located on a side of the non-display area away from the display area, the first auxiliary portion including at least one convex portion on a side away from the display area; the first auxiliary portion serving as a winding starting end of the display panel; There are a plurality of convex portions, and the plurality of convex portions are arranged along a first direction, and the first direction intersects with a second direction in which the display area and the non-display area are arranged.

14. The display panel according to claim 13, wherein: The first direction is perpendicular to a second direction in which the display area and the non-display area are arranged.

15. The display panel according to claim 13, wherein: The plurality of convex portions include at least a first convex portion and a second convex portion, and the first convex portion and the second convex portion are spaced apart from each other, or the first convex portion and the second convex portion are adjacent to each other.

16. The display panel according to claim 15, wherein: The first convex portion and the second convex portion have different widths in the second direction.

17. The display panel according to claim 13, wherein: The plurality of protrusions have the same cross-sectional shape in a direction parallel to the display surface.

18. The display panel according to claim 13, wherein: The cross-sectional shape of the convex portion in a direction parallel to the display surface is rectangular.

19. A reel, characterized in that: Used for winding the display panel according to any one of claims 1 to 18, the winding shaft comprises: A reel body, wherein the surface of the reel body includes a step surface, and the length direction of the step surface is parallel to the axial direction of the reel body; The second auxiliary portion includes at least one extension portion protruding from the step surface.

20. The reel according to claim 19, wherein There are multiple extension portions, and the multiple extension portions are arranged along the axial direction of the reel body. The multiple extension portions include at least a first extension portion and a second extension portion; The first extension portion and the second extension portion are spaced apart from each other, and the length of the first extension portion is equal to or different from the length of the second extension portion in the circumferential direction of the reel body; or the first extension portion and the second extension portion are adjacent to each other, and the length of the first extension portion is different from the length of the second extension portion in the circumferential direction of the reel body.

21. The reel according to claim 19, wherein In the circumferential direction of the reel body, the thickness of at least a portion of the second auxiliary portion gradually increases as the end away from the step surface approaches the step surface.

22. The reel according to claim 21, wherein A maximum thickness of the second auxiliary portion is equal to a maximum thickness of the display panel.

23. The reel according to claim 21, wherein A surface of the extension portion close to the step surface is smoothly connected to a surface of the reel body.

24. The reel according to claim 21, wherein The reel further includes a convex column protruding from the surface of the reel body. When the display panel is wound on the reel, the convex column is embedded in the hole portion on the first auxiliary portion.

25. The reel according to claim 24, wherein The protruding column is integrally formed with the reel body.

26. The reel of claim 19, wherein: The reel is magnetic.

27. The reel according to claim 26, wherein The reel body and the second auxiliary portion are integrally formed.

28. A display device, characterized in that: Comprising the display panel according to any one of claims 1 to 18, and / or the scroll according to any one of claims 19 to 27.

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