CN112002234B

CN112002234B - Stretchable display panel and display device

Info

Publication number: CN112002234B
Application number: CN202010887792.4A
Authority: CN
Inventors: 张骏
Original assignee: Shanghai Tianma Microelectronics Co Ltd
Current assignee: Shanghai Tianma Microelectronics Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2022-08-02
Anticipated expiration: 2040-08-28
Also published as: CN112002234A

Abstract

The invention discloses a stretchable display panel and a display device, and relates to the technical field of display; the stretchable display panel comprises a central display area and an edge area surrounding the central display area, and one side of the edge area, which is pointed to by the central display area, is in a first direction; the stretchable display panel comprises a plurality of pixel islands arranged in an array and a plurality of stretchable bridges connected with the pixel islands; along the first direction, the edge zone at least comprises a clearance zone, and the clearance zone is not provided with a stretchable bridge; the connection between the pixel island and the outer edge of the display panel in the stretching direction of the display panel is broken, the tensile force which is larger than a certain limit is applied to the pixel island by the damaged stretchable bridge in the laser cutting process, and the damage extending to the pixel island by the damaged outer edge of the display panel can also be avoided, so that the problem that the stretchable bridge or the pixel island is broken or peeled from the substrate in the panel is avoided, and the manufacturing yield of the stretchable display panel is improved.

Description

Stretchable display panel and display device

Technical Field

The invention relates to the technical field of display, in particular to a stretchable display panel and a display device.

Background

In the prior art, a plurality of pixel structure islands are disposed in a stretchable display panel, two adjacent pixel structure islands in the same row and two adjacent pixel structure islands in the same column are connected by a stretchable bridge, and the pixel structure islands located near the outer edge of the display panel are also connected with the outer edge of the display panel by the stretchable bridge; when the display panel is cut by using a laser, the laser may damage the stretchable bridge extending to the outer edge of the panel, and during the further stretching of the stretchable display panel, the stretchable bridge extending to the outer edge of the panel may stretch the connected pixel structure islands by an amount greater than a predetermined amount, which may easily cause the stretchable bridge, and even the pixel structure islands to break or peel. Therefore, it is desirable to provide a stretchable display panel to avoid excessive damage to the panel during the process of cutting the display panel using laser.

Disclosure of Invention

Accordingly, the present invention provides a stretchable display panel and a display device, which are used to solve the problem that the stretchable bridge extending to the panel edge is damaged, resulting in the breakage or peeling of the stretchable bridge or the pixel structure island in the display panel.

In a first aspect, the present application provides a stretchable display panel, including a central display region and an edge region surrounding the central display region, where a side of the edge region from the central display region is a first direction;

the stretchable display panel comprises a plurality of pixel islands arranged in an array and a plurality of stretchable bridges connected with the pixel islands;

along the first direction, the edge region comprises at least one clearance zone, and the clearance zone is not provided with the stretchable bridge.

In a second aspect, the present application provides a display device comprising the stretchable display panel.

Compared with the prior art, the stretchable display panel and the display device provided by the invention at least realize the following beneficial effects:

the application provides a display panel can stretch, through in the marginal zone direction of pointing the marginal zone that encircles central display area along the central display area of display panel can stretch, set up at least one clearance area in the marginal zone, but not set up the bridge of stretching in the clearance area, in order to break off the connection between pixel island and the display panel outside edge in the display panel stretching direction, the impaired bridge of stretching in the process of avoiding laser cutting will be greater than certain limit's pulling force and apply for the pixel island, also can avoid the impaired outside edge of display panel will damage and extend to the pixel island, thereby the problem that the bridge or pixel island break or peel off from the base plate can stretch in avoiding the panel, be favorable to improving the preparation yield of the display panel that can stretch.

Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a top view of a display panel according to an embodiment of the present disclosure;

fig. 2 is a top view of a display panel provided by an embodiment of the present application, in which the edge regions are all clearance regions;

FIG. 3 is a top view of a display panel including vacant islands according to the embodiment of the present disclosure;

FIG. 4 is a top view of the vacant islands in FIG. 3 with a clearance area between the first edge and the vacant islands according to an embodiment of the present disclosure;

fig. 5 is a top view of a display panel with an area of a vacant island larger than an area of a pixel island according to an embodiment of the present application;

fig. 6 is another top view of a display panel provided in an embodiment of the present application, in which the area of the vacant islands is larger than that of the pixel islands;

fig. 7 is a top view of another display panel including vacant islands according to an embodiment of the present disclosure;

fig. 8 is a top view of a display panel including a fixing portion according to an embodiment of the present disclosure;

fig. 9 is a top view of a display panel including driving islands according to an embodiment of the present disclosure;

fig. 10 is a top view of another display panel provided in the embodiment of the present application;

FIG. 11 is a top view of the embodiment of the present application including the fixing portion shown in FIG. 10;

FIG. 12 is another top view of FIG. 11 as provided by an embodiment of the present application;

fig. 13 is a schematic top view of a display panel according to an embodiment of the present application;

FIG. 14 is an AA' cross-sectional view of FIG. 11 according to an embodiment of the present application;

fig. 15 is a schematic view of a display device according to an embodiment of the present disclosure.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the prior art, the pixel structure islands located near the outer edge of the display panel are connected with the outer edge of the display panel through the stretchable bridge; when the display panel is cut by using a laser, the laser may damage the stretchable bridge extending to the outer edge of the panel, and during the further stretching of the stretchable display panel, the stretchable bridge extending to the outer edge of the panel may stretch the connected pixel structure islands by an amount greater than a predetermined amount, which may easily cause the stretchable bridge, and even the pixel structure islands to break or peel. Therefore, it is desirable to provide a stretchable display panel to avoid excessive damage to the panel during the process of cutting the display panel using laser.

The invention provides a stretchable display panel and a display device, which are used for solving the problem that stretchable bridges extending to the edge of the panel are damaged, so that the stretchable bridges or pixel structure islands in the display panel are broken or peeled off.

Fig. 1 is a top view of a display panel according to an embodiment of the present invention, fig. 2 is a top view of a display panel provided in an embodiment of the present invention, in which edge regions are all blank regions, please refer to fig. 1 and fig. 2, the present invention provides a stretchable display panel 100, which includes a central display region 01 and an edge region 02 surrounding the central display region 01, and a side of the central display region 01 pointing to the edge region 02 is in a first direction;

the stretchable display panel 100 includes a plurality of pixel islands 10 arranged in an array and a plurality of stretchable bridges 11 connected to the pixel islands 10;

in the first direction, the edge region 02 includes at least one clearance region 12, and the clearance region 12 is not provided with the stretchable bridge 11.

Specifically, the present application provides a stretchable display panel 100, which includes a central display region 01 and an edge region 02, wherein the edge region 02 is closed around the central display region 01, and a side of the central display region 01 pointing to the edge region 02 is defined as a first direction. The stretchable display panel 100 provided by the present application includes a plurality of pixel islands 10 and a plurality of stretchable bridges 11, wherein the plurality of pixel islands 10 are arranged in the display panel 100 in an array, and the plurality of stretchable bridges 11 are respectively connected to the pixel islands 10, specifically: two pixel islands 10 disposed arbitrarily adjacent in the row direction or the column direction are connected by at least one stretchable bridge 11.

In the first direction, the present application provides at least one clearance area 12 in the edge area 02 of the stretchable display panel 100, where the clearance area 12 refers to an area in the edge area 02 shown in fig. 1 where no stretchable bridge 11 is disposed, and further, the clearance area 12 is specifically an area in the central display area 01 where no stretchable bridge 11 is disposed toward one side of the outer edge of the display panel 100 in the row direction or the column direction along which any pixel island 10 near one side of the edge area 01 is arranged; any pixel island 10 near the edge region 01 side in the central display region 01 is disconnected from the outer edge through the clearance region 12, or the stretchable bridge 11 connecting the outer edge is disconnected from any pixel island 10 near the edge region 01 side in the central display region 01 through the clearance region 12. The orthographic projection of the clearance area 12 on the light-emitting surface of the stretchable display panel 100 is less than or equal to the orthographic projection of the edge area 02 on the light-emitting surface of the stretchable display panel 100. The stretchable bridges 11 are not disposed in the headroom region 12, and there is at least one pixel island 10 without connecting the stretchable bridges 11 on a side near the outer edge of the display panel 100. By not disposing the stretchable bridge 11 structure between the pixel island 10 and the outer edge of the stretchable display panel 100, that is, cutting off the bridging device (for example, the stretchable bridge 11) connected between any pixel island 10 in the central display region 01 of the display panel 100 near the edge region 01 and the outer edge of the display panel, the stretching of the pixel island 10 by the edge of the display panel 100 is reduced, and the tensile stress applied to the pixel island 10 by the edge of the display panel 100 is reduced, so that the number of the stretchable bridges 11 damaged during the cutting process of the display panel is reduced, and the damaged stretchable bridges 11 cannot apply a stretching force exceeding a limit to the pixel island 10 due to the existence of the clear region 12 between the damaged stretchable bridges 11 and the pixel island 10, thereby reducing the probability of peeling or breaking of the stretchable bridges 11 and the corresponding pixel islands 10, and facilitating the improvement of the production yield of the stretchable display panel 100.

Referring to fig. 2, when no island structure is disposed in the edge region 02 of the stretchable display panel 100, the edge region 02 of the entire display panel 100 may be the clearance region 12, and all the pixel islands 10 disposed on one side of the display panel 100 near the edge region 02 are not disposed with the stretchable bridge 11 structure on one side near the outer edge of the display panel 100. That is, compared to the prior art, the stretchable bridges 11 facing the display panel edge side of all the pixel islands 10 on the side of the display panel 100 close to the edge region 02 are removed, so that there is no structure of the stretchable bridges 11 between any pixel island 10 and the cut edge of the stretchable display panel 100, and the display panel 100 is cut by laser to be all the substrate structure, thereby eliminating the possibility of damage to the stretchable bridges 11 extending to the display panel edge, and being beneficial to reducing the risk of breaking or peeling of the pixel islands 10 in the entire stretchable display panel 100 due to abnormal stretching, and being beneficial to improving the production yield of the stretchable display panel 100.

It should be noted that fig. 1 and 2 only show an arrangement of the pixel islands 10 and the stretchable bridges 11 in the stretchable display panel 100 by way of example, and do not represent the actual number of pixel islands 10 and the number of stretchable bridges 11 in one display panel 100, nor represent the actual spacing between the pixel islands 11; the size, number, shape, etc. of the pixel islands 10 and the stretchable bridges 11 disposed in the stretchable display panel 100 may be adjusted according to actual needs. In addition, since the clearance area 12 is mainly between the pixel island 10 and the outer edge of the display panel, only the clearance area 12 between the pixel island 10 and the outer edge of the display panel is shown in the figure, and the space of all the pixel islands 10 on the side close to the edge area 02 in the display panel 100 along the first direction can be considered as the clearance area.

Referring to fig. 3, which is a top view of a display panel including vacant islands in the display panel provided in the embodiment of the present application, referring to fig. 3, optionally, the stretchable display panel 100 further includes at least one vacant island 13, the vacant island 13 is located at the edge region 02, and the vacant island 13 and the vacant region 12 do not overlap in a direction perpendicular to the plane of the stretchable display panel 100.

Specifically, the stretchable display panel 100 provided by the present application may further include at least one vacant island 13 disposed in the edge region 02, where the vacant island 13 is not used for displaying a picture, and when the stretchable display panel 100 is stretched to generate a deformation, the vacant island 13 first undergoes the deformation and releases a part of pressure generated by the deformation through the stretchable bridge 11 connected to the vacant island 13, so as to effectively improve the stretch resistance of the display panel 100; the vacant islands 13 are arranged to prevent the pixel islands 10 from being cut and damaged when the edge of the display panel 100 is cut by the laser, and to prevent the laser cutting damage from occurring, and the stretchable bridges 11 extending to the outer edge of the display panel 100 directly apply too large tension to the pixel islands 10, thereby improving the yield of the stretchable display panel 100.

In the stretchable display panel 100 provided by the present application, in a direction perpendicular to a plane in which the stretchable display panel 100 is located, the vacant islands 13 and the vacant areas 12 do not overlap; or, the orthographic projection of the vacant island 13 on the light-emitting surface of the stretchable display panel 100 and the orthographic projection of the clearance area 12 on the light-emitting surface of the stretchable display panel 100 do not overlap; wherein "not overlapping" is specifically: the two orthographic projections of the vacant islands 13 and the clearance areas 12 on the light-emitting surface of the stretchable display panel 100 are separated from each other, or the two orthographic projections of the vacant islands 13 and the clearance areas 12 on the light-emitting surface of the stretchable display panel 100 are adjacent.

It should be noted that, here, the dummy islands 13 are all disposed in the edge region 02 of the stretchable display panel 100, that is, the dummy islands 13 are disposed between the pixel islands 10 of the central display region 01 near the edge region 02 and the outer edge of the display panel 100, and the dummy islands 13 may serve as a protection structure of the stretchable display panel 100, even if the island structure of the stretchable display panel 100 near the outermost edge of the panel is damaged in the processes of laser cutting and the like, the damaged island structure is also the dummy islands 13 disposed in the edge region 02, so as to further protect the pixel islands 10 of the stretchable display panel 100 located in the central display region 01, which is beneficial to improving the manufacturing yield of the stretchable display panel 100.

The vacant islands 13 and the clearance areas 12 are not overlapped, the clearance areas 12 needed to be arranged in the stretchable display panel 100 are ensured, the quantity of stretchable bridges 11 arranged between the pixel islands 10 and/or the vacant islands 13 and the outer edge of the panel can be reduced in the stretchable display panel 100, the quantity of the stretchable bridges 11 damaged when the display panel 100 is cut by laser is reduced, the arrangement mode that the clearance areas 12 are arranged between the outer edge of the panel and the pixel islands 10 when the display panel 100 is stretched in the row direction or the column direction is realized, and therefore the pixel islands 10 are prevented from being pulled beyond the stretching limit, the probability that the bridges 11 and the pixel islands 10 correspondingly connected with the bridges are peeled or broken is favorably reduced, and the production yield of the stretchable display panel 100 is favorably improved.

With reference to fig. 3, optionally, the pixel island 10 is disposed in the central display area 01, and at least one empty island 13 is disposed in the empty area 12 between the pixel island 10.

Specifically, the pixel islands 10 arranged in the stretchable display panel 100 provided by the present application may be all disposed in the central display area 01, and the pixel islands 10 arranged in an array in the central display area 01 are used for displaying the image of the stretchable display panel 100; when the vacant islands 13 are disposed in the edge region 02 of the stretchable display panel 100, the present application may arrange that the edge region 02 includes a vacant region 12, and at least one stretchable bridge 11 is not disposed between the pixel island 10 and the vacant island 13 on the side of the central display region 01 close to the edge region 02, and the position between the pixel island 10 and the vacant island 13 is the vacant region 12. This area is also the clear area 12 when no stretchable bridge 11 is provided between the free island 13 and the edge of the edge area 02 on the side away from the central display area 01.

When the stretchable display panel 100 provided by the present application includes the vacant islands 13 in the edge region 02, a vacant region 12 is formed between at least one vacant island 13 and the pixel island 10; even if the stretchable bridge 11 is disposed between one of the dummy islands 13 and the outer edge of the corresponding display panel 100, when the clearance area 12 is disposed between the dummy island 13 and the pixel island 10 closest thereto, i.e., the stretchable bridge 11 is not disposed between the dummy island 13 and the pixel island 10 closest thereto, even if the stretchable bridge 11 corresponding to the dummy island 13 extending to the edge of the display panel 100 is damaged during the panel cutting process, the damaged stretchable bridge 11 will only exert too much tensile force on the dummy island 13 corresponding to the dummy island 100 during the stretching process of the display panel 100, and will not adversely affect the pixel islands 10 in the central display area 01. Therefore, the clearance area 12 is disposed between at least a portion of the vacant islands 13 and the pixel islands 10, and/or the clearance area 12 is disposed between at least a portion of the vacant islands 13 and the outer edge of the display panel, which is beneficial to avoiding the risk of damage such as peeling or breaking of the pixel islands 10 in the central display area 01, and is equivalent to protecting the pixel islands 10 through the vacant islands 13 and the clearance area 12, which is beneficial to improving the production yield of the stretchable display panel 100.

Fig. 4 is a top view of the clearance area between the first edge and the vacant island in fig. 3 according to an embodiment of the present application, please refer to fig. 3 and fig. 4, optionally, along the first direction, a side of the edge area 02 away from the central display area 01 is a first edge 14, and at least one vacant island 13 is included and the clearance area 12 is located between the first edge 14.

Specifically, in a first direction, i.e., in a direction in which the central display region 01 points to the edge region 02, a side of the edge region 02 away from the central display region 01 is a first edge 14, and the first edge 14 may refer to a cutting edge of the stretchable display panel 100 during laser cutting; when at least one vacant island 13 is disposed in the edge region 02 of the stretchable display panel 100, a vacant region 12 may be disposed between the vacant island 13 and the first edge 14, and in this case, even if the vacant island 13 and the pixel island 10 closest to the vacant island 13 are connected by the stretchable bridge 11, the stretchable bridge 11 is not disposed between the vacant island 13 and the first edge 14, when the first edge 14 of the display panel 100 is cut by using laser, the vacant island 13 disposed adjacent to one side of the edge is not damaged, and thus the fixation and device integrity of the pixel island 10 in the panel are not affected, which is equivalent to that the pixel island 10 is protected by the vacant island 13 and the vacant region 12 together, which is beneficial to improving the production yield of the stretchable display panel 100.

In addition, in the stretchable display panel 100 shown in fig. 4, the stretchable bridge 11 is not disposed between the dummy island 13 and the first edge 14, so that the entire area between the dummy island 13 and the first edge 14 is the clearance area 12, when the first edge 14 of the display panel 100 is cut by using laser, damage to the stretchable bridge 11 extending to the first edge 14 is avoided, the pixel island 10 (and the dummy island 13) is protected by the clearance area 12 near the first edge 14, and the production yield of the stretchable display panel 100 is improved.

Fig. 5 is a top view of a display panel provided in an embodiment of the present disclosure, in which the area of the vacant island is larger than that of the pixel island, and fig. 6 is another top view of the display panel provided in an embodiment of the present disclosure, in which the area of the vacant island is larger than that of the pixel island; referring to fig. 5 and fig. 6, it should be noted that fig. 6 and the following drawings do not show the filling of the clearance area 12 for clearly showing the contents to be expressed, and the position of the clearance area 12 can be correspondingly combined with fig. 1 to fig. 5; alternatively, the area of the dummy island 13 is equal to or larger than the area of any one of the pixel islands 10.

Specifically, in the stretchable display panel 100 provided in the present application, the area of any one of the dummy islands 13 disposed in the edge region 02 may be greater than or equal to the area of any one of the pixel islands 10, and it should be noted that "the area" herein refers to an orthographic projection area of any one of the dummy islands 13 and any one of the pixel islands 10 on the light emitting surface of the stretchable display panel 100, or an orthographic projection area of any one of the dummy islands 13 and any one of the pixel islands 10 on a plane perpendicular to the display panel 100.

According to the method, the area of the vacant islands 13 is larger than or equal to the area of the pixel islands 10, so that on one hand, the number of the vacant islands 13 required to be manufactured in the edge area 02 can be reduced to a certain extent, and the manufacturing complexity of the display panel 100 is simplified; on the other hand, the vacant islands 13 with a larger area can effectively prevent the first edges 14 from being broken or peeled off and extending toward the pixel islands 10, thereby more effectively protecting the yield of the pixel islands 10 in the central display area 01 of the stretchable display panel 100.

In addition, the present application does not limit that the installation area, the shape, and the like of the dummy islands 13 are the same, and even if each of the dummy islands 13 has different characteristics such as area, shape, and the like, as long as the dummy islands 13 are arranged in the edge region 02, and can effectively block or delay the damage such as the crack of the first edge 14 from extending to the pixel islands 10, thereby protecting the device integrity of the pixel islands 10.

With reference to fig. 6, optionally, the dummy islands 13 include a first dummy island 131 and a second dummy island 132, the second dummy island 132 is located between the first dummy island 131 and the pixel island 10 along the first direction, and an area of the second dummy island 132 is greater than or equal to an area of any one of the pixel islands 10 and less than or equal to an area of the first dummy island 131.

Specifically, the vacant islands 13 disposed in the edge region 02 of the stretchable display panel 100 provided in the present application may include a first vacant island 131 and a second vacant island 132, and the second vacant island 132 is located between the first vacant island 131 and the pixel island 10 along the first direction, in this case, the area of the second vacant island 132 may be set to be greater than or equal to the area of any one pixel island 10, and the area of the second vacant island 132 is smaller than or equal to the area of the first vacant island 131; that is, no matter what the type, group number or number of turns of the dummy islands 13 arranged in the edge region 02 is, the area of the dummy islands 13 can be set to be larger than or equal to the area of the pixel islands 10, so that the number of the dummy islands 13 required to be manufactured in the edge region 02 is reduced, and the manufacturing complexity of the display panel 100 is simplified; the empty islands 13 with a large area can effectively prevent the first edges 14 from breaking or peeling and extending toward the pixel islands 10, thereby more effectively protecting the yield of the pixel islands 10 in the central display area 01 of the stretchable display panel 100.

The area of the second dummy island 132 is set to be smaller than or equal to the area of the first dummy island 131, and the length of the dummy island 13 closer to the first edge 14 along the stretching direction of the display panel 100 is set to be larger, for example, the width of the dummy island 13 (including the first dummy island 131 and the second dummy island 132) along the row direction in fig. 6 is set to be larger than the width of the pixel island 10, so that the dummy island 13 with a larger area can effectively prevent the first edge 14 from being broken or peeled off and extend to the pixel island 10, which is beneficial to protecting the yield of the stretchable display panel 100.

It should be noted that, in the present application, the fabrication area of any pixel island 10 and the fabrication area of any vacant island 13 are not limited, and the areas of all pixel islands 10 and all vacant islands 13 are set to be the same, and the shapes of all pixel islands 10 and all vacant islands 13 are kept the same, which is beneficial to the integrated molding during the fabrication of the island structure in the fabrication process of the display panel 100, and improves the fabrication efficiency of the display panel 100. Since the pixel islands 10 and the dummy islands 13 have different roles in the stretchable display panel 100, the pixel islands 10 may be all fabricated to have the same area and the same shape, and the dummy islands 13 may be all fabricated to have the same area and the same shape, which may also improve the fabrication efficiency of the display panel 100 to some extent.

With reference to fig. 6, optionally, the shortest distance between the first vacant island 131 and the first edge 14 is D1, and D1 is less than or equal to 100 μm and less than or equal to 1000 μm.

Specifically, the first vacant island 131 arranged in the edge region 02 is an island structure arranged adjacent to the first edge 14 in the edge region 02, and the shortest distance between the first vacant island 131 and the first edge 14 is set to be in a range of 100 μm to 1000 μm in the present application; the shortest distance between the first vacant island 131 and the first edge 14 is controlled within a range larger than 100 μm, so that a certain space can be ensured to be reserved between the first vacant island 131 and the first edge 14, on one hand, the manufacturing position of the first vacant island 131 within an error range can be ensured to be enough, and on the other hand, when the stretchable display panel 100 is cut by laser, the vacant islands 13 can be ensured not to be cut to a certain extent, which is beneficial to ensuring the integrity of the whole stretchable display panel 100 and improving the manufacturing yield of the stretchable display panel 100. The maximum distance between the first vacant island 131 and the first edge 14 is controlled to be 1000 μm, which can effectively control the area of the edge region 02 not to be too large, and is beneficial to the narrow frame design of the stretchable display panel 100.

With reference to fig. 6, optionally, along the first direction, a distance L1 between the first dummy island 131 and the second dummy island 132 is smaller than a distance L2 between the second dummy island 132 and the pixel island 10.

Specifically, when the first and second

vacant islands

131 and 132 are disposed in the edge area 02, the shortest distance L1 between the first and second

vacant islands

131 and 132 may be set smaller than the shortest distance L2 between the second vacant island 132 and the pixel island 10; the relatively large distance L2 between the second vacant island 132 and the pixel island 10 can reduce the extent of the first edge 14 that causes panel damage during laser cutting to the pixel island 10 to some extent, for example, reduce the extent of the crack caused by the damaged first edge 14 to the pixel island 10, so as to protect the pixel island 10 from being damaged; that is, setting the distance L2 between the second dummy island 132 and the pixel island 10 to be relatively large can ensure that the transmission distance of the edge stress to the pixel island 10 is increased when the display panel 100 is stretched, and the stretchable bridge 11 structure is not provided at a position between at least a part of the pixel island 10 and the dummy island 13, which can break the path between the pixel island 10 and the dummy island 13 and prevent the pixel island 10 from being stretched too much. In addition, the distance L1 between the first vacant island 131 and the second vacant island 132 is set to be smaller, so that the first vacant island 131 and the second vacant island 132 are arranged more closely, which is beneficial to reducing the area required by the edge region 02 and is beneficial to the narrow frame design of the stretchable display panel 100.

Fig. 7 is another top view of a display panel including vacant islands according to an embodiment of the present disclosure, referring to fig. 7, optionally, the stretchable display panel 100 includes a first stretching direction and a second stretching direction;

the stretchable display panel 100 includes a first state and a second state;

in the first state, the stretchable display panel 100 is in an unstretched state;

in the second state, the stretchable display panel 100 is in a stretched state, wherein the stretching direction is located in the first stretching direction and/or the second stretching direction.

Specifically, the stretchable display panel 100 provided by the present application may be, for example, a rectangular display panel 100 shown in fig. 7, and may include a first stretching direction and a second stretching direction, for example, the first stretching direction may be an extending direction in which the pixel islands 10 are arranged along a row direction, and the second stretching direction may be an extending direction in which the pixel islands 10 are arranged along a column direction.

The stretchable display panel 100 may comprise a first state and a second state, wherein in the first state the stretchable display panel 100 is in an unstretched state; in the second state, the stretchable display panel 100 is in a stretched state, and the stretching direction may be only in the first stretching direction or the second stretching direction, where the stretchable display panel 100 can be stretched in only one direction; the stretching direction may also include both the first stretching direction and the second stretching direction, in which case the stretchable display panel 100 may be stretched along the first stretching direction and may also be stretched along the second stretching direction.

It should be noted that, the present application only provides a direction in which the stretchable display panel 100 can be stretched, but the stretchable display panel 100 is not limited to be stretched in two directions, and the stretchable direction of the stretchable display panel 100 can be adjusted according to needs, so as to adjust each desired structure in the stretchable display panel 100.

With reference to fig. 7, optionally, in the second state, the amount of stretching deformation of the stretchable display panel 100 in the first stretching direction is greater than the amount of stretching deformation in the second stretching direction, and the number of the empty islands 13 in the first stretching direction is greater than the number of the empty islands 13 in the second stretching direction, and/or the number of the clearance areas 12 in the first stretching direction is greater than the number of the clearance areas 12 in the second stretching direction.

Specifically, when the stretchable display panel 100 is in a stretched state, the amount of stretching deformation of the stretchable display panel 100 in the first stretching direction may be set to be greater than the amount of stretching deformation in the second stretching direction, that is, the stretchable display panel 100 is stretched in the first stretching direction to a greater extent than the second stretching direction, and when the display panel 100 is stretched, the stretching force applied to the pixel island 10 in the first stretching direction may be greater than the stretching force in the second stretching direction, and the pixel island 10 is easily broken by the greater stretching force or other damage situations. Therefore, the present application solves the problem that the pixel island 10 is snapped by the tensile force in the first stretching direction by setting the number of the dummy islands 13 arranged in the first stretching direction to be larger than the number of the dummy islands 13 arranged in the second stretching direction. Here, the "number of the dummy islands 13 arranged in the first stretching direction" refers to the number of the dummy islands 13 arranged on the left and right sides of one row of the pixel islands 10 in the central display area 01, and the "number of the dummy islands 13 arranged in the second stretching direction" refers to the number of the dummy islands 13 arranged on the left and right sides of one column of the pixel islands 10 in the central display area 01, for example, the number of the dummy islands 13 arranged in the first stretching direction shown in fig. 7 is 4, and the number of the dummy islands 13 arranged in the second stretching direction is 2.

Specifically, the tensile force borne by the pixel island 10 when the stretchable display panel 100 is stretched along the first stretching direction is shared by the arrangement of the plurality of vacant islands 13 in the edge region 02, so that the stretch resistance of the central display region 01 of the stretchable display panel 100 is improved, the risk that the pixel island 10 is stretched and broken by a large force in the panel is reduced, and the display effect and the user experience of the corresponding display device are improved. Moreover, the number of the clearance areas 12 of the stretchable display panel 100 along the first stretching direction may be greater than the number of the clearance areas 12 along the second stretching direction, in this case, no matter between the vacant islands 13 and the first edges 14, between the vacant islands 13 and the vacant islands 13, or between the vacant islands 13 and the pixel islands 10, which are arranged along the first stretching direction, may be alternatively/completely set as the clearance areas 12, and the clearance areas 12 do not have the regions of the stretchable bridges 11, so that by reducing the arrangement of the stretchable bridges 11, the number of the stretchable bridges 11 damaged when the display panel 100 is cut by the laser may be reduced, and the pixel islands 10 may be prevented from being applied with an over-limit tensile force, thereby reducing the probability of peeling or breaking of the stretchable bridges 11 and the pixel islands 10 connected thereto, and facilitating the improvement of the production yield of the stretchable display panel 100.

Fig. 8 is a top view of a display panel including a fixing portion according to an embodiment of the present application, please refer to fig. 8, it should be noted that, in order to clearly show what is supposed to be shown in fig. 8, only two left and right columns of vacant islands 13 are shown in fig. 8, but the vacant islands 13 disposed between the fixing portion 16 and the pixel islands 10 may include multiple columns, multiple groups or multiple circles; for example, figures that may include a column of first vacant islands 131 and a column of second vacant islands 132 between a pixel island 13 and its adjacent first edge 14 may be understood in conjunction with fig. 3-7. Alternatively, the stretchable display panel 100 includes a first stretchable direction and a second stretchable direction;

the stretchable display panel 100 further includes a fixing portion 16, when the stretchable display panel 100 is stretched only in the first stretchable direction or the second stretchable direction, the fixing portion 16 is disposed between the first vacant island 131 (or the vacant island 13) and the first edge 14 in the stretching direction of the display panel 100; the fixed portions 16 are connected to the pixel islands 10 located in the central display area 01 near the edge region 02 via at least one stretchable bridge 11.

Specifically, the stretchable display panel 100 provided herein may be, for example, a rectangular display panel 100, and may include a first stretching direction and a second stretching direction; the stretchable display panel 100 may further include a fixing portion 16, when the stretchable display panel 100 is stretched along only one of the first stretchable direction and the second stretchable direction, the fixing portion 16 disposed on the display panel 100 may be located between the first vacant islands 131 and the first edge 14 along the stretching direction of the display panel 100, and an orthographic projection of the fixing portion 16 on the light-emitting surface of the display panel 100 is much larger than an orthographic projection of one first vacant island 131 on the light-emitting surface of the display panel 100; the fixed part 16 that this application set up compares in pixel island 10, vacant island 13, can stretch structures such as bridge 11 and have better stretch-proofing ability, also is that the fixed part 16 is difficult for being stretched and produce deformation, consequently the fixed part 16 can be used for binding of drive chip, and the fixed part 16 that consequently the area is great is favorable to binding of components and parts, and is favorable to guaranteeing the stability of the components and parts that bind.

The stretchable display panel 100 may further include stretchable bridges 11 connecting the fixing portions 16 and the pixel islands 10, the fixing portions 16 being connected to the pixel islands 10 located near the edge region 02 in the central display region 01 through at least one stretchable bridge 11, so that the driving chips bound in the fixing portions 16 are electrically connected to the pixel islands 10 through the stretchable bridges 11, thereby enabling signal transmission between the driving chips and the pixel islands 10. Furthermore, the stretchable bridge 11 is further disposed between the pixel island 10 and the fixing portion 16, and the stretchable bridge 11 is used as a transition region between the fixing portion 16 and the pixel island 10, so that damage of a stretching force to the fixing portion 16 and/or the pixel island 10 during a stretching process of the display panel 100 can be avoided, and a service life of the stretchable display panel 100 can be guaranteed.

Referring to fig. 9, which is a top view of the display panel including the driving islands provided in the embodiment of the present application, referring to fig. 9, optionally, the stretchable display panel 100 further includes at least one driving island 17, the driving island 17 is located in the edge region 02 and disposed between the vacant island 13 and the central display region 01, and the driving island 17 electrically connects the fixing portion 16 and the pixel island 10.

Specifically, the stretchable display panel 100 may further include at least one driving island 17, the driving island 17 may be disposed in the edge region 02 of the display panel 100, and the driving island 17 is disposed between the vacant island 13 and the central display region 01, the driving island 17 electrically connects the fixing portion 16 and the pixel island 10, and then the voltage signal bound to the driving chip in the fixing portion 16 is transmitted to the pixel island 10 through the driving island 17. When the stretchable display panel 100 is deformed or stretched, the vacant islands 13, the fixed portions 16, the driving islands 17, and the stretchable bridges 11 disposed in the edge region 02 may release a part of pressure generated by the deformation of the display panel 100, and the island bridge structure formed by the fixed portions 16, the vacant islands 13, the driving islands 17, the pixel islands 10, and the stretchable bridges 11 for connecting the island structures may effectively improve the stretch resistance of the stretchable display panel 100, which is beneficial to improving the service life of the stretchable display panel 100.

It should be further noted that, the orthographic projections of any pixel island 10, any vacant island 13, and any driving island 17 in the stretchable display panel 100 on the light emitting surface of the display panel 100 may be the same, and even the areas, shapes, and spacings of any pixel island 10, any vacant island 13, and any driving island 17 may be made the same, which can further simplify the manufacturing process of the stretchable display panel 100 and improve the manufacturing efficiency of the stretchable display panel 100.

Fig. 10 is another top view of the display panel according to the embodiment of the present disclosure, referring to fig. 10, optionally, the pixel island 10 includes a first pixel island 101 and a second pixel island 102, and the first pixel island 101 is located between the second pixel island 102 and the edge region 02;

the pitch L3 between the first pixel island 101 and the second pixel island 102 is smaller than the pitch (D2/D3) between the first pixel island 101 and the first edge 14.

Specifically, the pixel island 10 disposed in the central display area 01 of the stretchable display panel 100 may include a first pixel island 101 and a second pixel island 102, where the first pixel island 101 is located between the second pixel island 102 and the edge area 02, that is, the first pixel island 101 is the pixel island 10 in the central display area 01 near the edge area 02, and a distance L3 between the first pixel island 101 and the second pixel island 102 may be set smaller than a distance (D2/D3) between the first pixel island 101 and the first edge 14, on one hand, the pixel islands 10 located in the central display area 01 may be closely arranged, on the other hand, a certain space may be left in the edge area 02 for disposing some components required by the display panel 100, and it is also beneficial to avoid damage to the pixel island 10 in the central display area 01 by laser in the laser cutting process of the display panel 100; it is advantageous not only to improve the resolution of the stretchable display panel 100 but also to improve the good yield of the stretchable display panel 100.

With reference to fig. 10, optionally, along the first direction, a side of the edge region 02 away from the central display region 01 is a first edge 14; the stretchable display panel 100 includes a first stretchable direction and a second stretchable direction;

when the stretchable display panel 100 is stretched only in the first stretchable direction or the second stretchable direction, the shortest distance between any one of the first pixel islands 101 located in the central display region 01 near the edge region 02 and the first edge 14 in the stretching direction of the stretchable display panel 100 is D2; in the non-stretching direction of the stretchable display panel 100, the shortest distance between any first pixel island 101 located in the central display region 01 near the edge region 02 and the first edge 14 is D3, and D2 > D3.

Specifically, in the stretchable display panel 100, along a first direction, i.e., along a direction in which the central display region 01 points to the edge region 02, a side of the edge region 02 away from the central display region 01 is a first edge 14, and the first edge 14 may refer to a cut edge of the stretchable display panel 100 during laser cutting; the stretchable display panel 100 may include a first stretching direction and a second stretching direction, for example, the first stretching direction may be a direction in which the pixel islands 10 are arranged to extend in a row direction, and the second stretching direction may be a direction in which the pixel islands 10 are arranged to extend in a column direction.

When the stretchable display panel 100 is in a stretched state, the stretchable display panel 100 may be only set to stretch along the first stretchable direction or the second stretchable direction, and along the stretching direction of the stretchable display panel 100 (e.g., the first stretching direction), the present application may set the shortest distance between any one of the first pixel islands 101 located in the central display region 01 near the edge region 02 and the first edge 14 to be D2; the shortest distance between any first pixel island 101 located in the central display region 01 near the edge region 02 and the first edge 14 along the non-stretching direction (e.g., the second stretching direction) of the stretchable display panel 100 is D3, wherein D2 > D3, and 100 μm ≦ D2 ≦ 1000 μm.

The shortest distance D2 between the first pixel island 101 and the first edge 14 in the stretching direction of the stretchable display panel 100 is greater than the shortest distance D3 between the first pixel island 101 and the first edge 14 in the non-stretching direction, so that more space is reserved for the edge area 02 in the stretching direction of the display panel 100, and for example, a fixed portion, a stretchable bridge connected to the fixed portion, a greater number of empty islands, and other components are provided, and the arrangement of the island-bridge structure in the display panel 100 can effectively improve the stretch resistance of the stretchable display panel 100, and is beneficial to improving the service life of the stretchable display panel 100.

In addition, when the margin area 02 is not provided with an empty island, the shortest distance between the first pixel island 101 and the first margin 14 is set to be 100-1000 μm; the shortest distance between the first pixel island 101 and the first edge 14 is controlled within a range larger than 100 μm, so that a certain space can be ensured to be reserved between the first pixel island 101 and the first edge 14, on one hand, the manufacturing position of the first pixel island 101 within an error range can be ensured to be enough, and on the other hand, when the stretchable display panel 100 is cut by laser, the vacant island can be ensured not to be cut to a certain extent, which is beneficial to ensuring the integrity of the whole stretchable display panel 100 and improving the manufacturing yield of the stretchable display panel 100. The maximum distance between the first pixel island 101 and the first edge 14 is controlled to be 1000 μm, so that the area of the edge region 02 is not too large, which is beneficial to the narrow frame design of the stretchable display panel 100.

Fig. 11 is a top view of the stretchable display panel 100 shown in fig. 10 according to the embodiment of the present application, referring to fig. 11, optionally, the stretchable display panel 100 further includes a fixing portion 16, and the fixing portion 16 is disposed between the first pixel island 101 and the first edge 14 along a stretching direction of the stretchable display panel 100; the fixed portion 16 is connected to a plurality of first pixel islands 101 located in the central display region 01 near the edge region 02 via at least one stretchable bridge 11.

Specifically, the stretchable display panel 100 provided in the present application may further include a fixing portion 16, when the stretchable display panel 100 is stretched along only one of the first stretchable direction or the second stretchable direction, and no vacant island is disposed in the edge region 02 of the stretchable display panel 100, along the stretching direction of the display panel 100 (for example, the first stretching direction), the fixing portion 16 disposed on the display panel 100 may be located between the first pixel island 101 and the first edge 14, and an orthographic projection of the fixing portion 16 on the light emitting surface of the display panel 100 is much larger than an orthographic projection of one pixel island 10 on the light emitting surface of the display panel 100; the fixing portion 16 can be used for binding the driver chip, so that the fixing portion 16 with a large area is beneficial to binding of the component and is beneficial to ensuring the stability of the bound component.

The stretchable display panel 100 may further include stretchable bridges 11 connecting the fixing portions 16 and the pixel islands 10, the fixing portions 16 being connected to the pixel islands 10 located near the edge region 02 in the central display region 01 through at least one stretchable bridge 11, so that the driving chips bound in the fixing portions 16 are electrically connected to the pixel islands 10 through the stretchable bridges 11, thereby enabling signal transmission between the driving chips and the pixel islands 10. Furthermore, the stretchable bridge 11 is disposed between the pixel island 10 and the fixed portion 16, and the stretchable bridge 11 is used as a transition region between the fixed portion 16 and the pixel island 10, so that damage of a stretching force to the fixed portion 16 and/or the pixel island 10 during stretching of the display panel 100 can be avoided, and the service life of the stretchable display panel 100 can be guaranteed.

Fig. 12 is another top view of fig. 11 according to an embodiment of the present disclosure, referring to fig. 12, optionally, an area of any one of the first pixel islands 101 is greater than or equal to an area of any one of the second pixel islands 102.

Specifically, the pixel island 10 disposed in the central display region 01 of the stretchable display panel 100 may also include a first pixel island 101 and a second pixel island 102, where the first pixel island 101 is located between the second pixel island 102 and the edge region 02, that is, the first pixel island 101 is the pixel island 10 in the central display region 01 near the edge region 02; the area of any first pixel island 101 may be set to be greater than or equal to the area of any second pixel island 102, that is, the orthographic projection of the first pixel island 101 on the light emitting surface of the display panel 100 may be greater than or equal to the orthographic projection of the second pixel island 102 on the light emitting surface of the display panel 100.

When the area of the first pixel island 101 is as large as the area of the second pixel island 102, that is, the pixel islands 10 in the central display region 01 may have the same area and shape, so that all the pixel islands 10 may be fabricated in the same process during the fabrication of the stretchable display panel 100, thereby simplifying the fabrication process of the stretchable display panel 100. When the area of the first pixel island 101 is larger than that of the second pixel island 102, the problem of poor edge display effect caused by the enlarged edge area 02 after the display panel 100 is stretched can be compensated to some extent, and the display effect of the display panel 100 is improved.

Referring to fig. 13, which is a further top view of the display panel provided in the embodiment of the present application, referring to fig. 13, optionally, the stretchable display panel 100 further includes at least one driving island 17, the driving island 17 is located in the edge region 02 and disposed between the fixing portion 16 and the central display region 01, and the driving island 17 electrically connects the fixing portion 16 and the pixel island 10.

Specifically, the stretchable display panel 100 may further include at least one driving island 17, when no vacant island is disposed in the edge region 02 of the stretchable display panel 100, the driving island 17 is disposed in the edge region 02 of the display panel 100 and located between the pixel island 10 and the fixing portion 16, the driving island 17 electrically connects the fixing portion 16 and the pixel island 10, and further, the driving island 17 transmits a voltage signal bound to the driving chip in the fixing portion 16 to the pixel island 10. When the stretchable display panel 100 is deformed or stretched, the fixing portion 16, the driving island 17 and the stretchable bridge 11 disposed in the edge region 02 can release a part of pressure generated by the deformation of the display panel 100, and the island-bridge structure formed by the fixing portion 16, the driving island 17, the pixel island 10 and the stretchable bridge 11 for connecting the island structure can effectively improve the stretch resistance of the stretchable display panel 100, which is beneficial to improving the service life of the stretchable display panel 100.

Note that the area of any stretchable bridge 11 connected to the fixed portion 16 is equal to or larger than the area of the stretchable bridge 11 disposed between any two pixel islands 10; when a plurality of stretchable bridges 11 are densely arranged between the fixed portion 16 and the pixel island 10, the stretchable bridges 11 may be stretchable bridges 11 having the same area (length, width) as that between the pixel islands 10, or a plurality of stretchable bridges 11 having a closely arranged area (mainly, a wider width) larger than that of the stretchable bridges 11 between the pixel islands 10, and even the stretchable bridges 11 disposed between the fixed portion 16 and the pixel islands 10 may have a structure having a certain elasticity in a whole sheet shape; the present application is not limited to the stretchable bridge 11 connecting the fixing portions 16 as long as a certain elastic region is formed between the pixel island 10 and the fixing portions 16.

Fig. 14 is a cross-sectional view of an AA' of fig. 11 according to an embodiment of the present application, and referring to fig. 1 to 14, it should be noted that fig. 10 shows all island structures (e.g., pixel islands, driving islands, dummy islands, etc.), but all cross-sectional views of the island structures refer to fig. 14; the stretchable display panel 100 further includes a stretchable substrate 31, and the pixel islands 10/the dummy islands 13/the driving islands 17 include a first inorganic layer 32, a first organic layer 34, a stretched conductive layer 33, a second inorganic layer 35, a second organic layer 36, an anode layer 37, and a third organic layer 38 sequentially disposed on one side of the stretchable substrate 31; the stretchable bridge 11 includes a first inorganic layer 32, a first organic layer 34, a stretched conductive layer 33, a second organic layer 36, and a third organic layer 38 sequentially disposed on one side of a stretchable substrate 31; the first edge 14 includes a second organic layer 36 and a third organic layer 38 disposed in sequence on the stretchable substrate 31 side. The stretchable display panel 100 further includes an elastic film layer 39, the elastic film layer 39 is disposed on a side of the stretchable substrate 31 away from the third organic layer 38; in a direction perpendicular to the stretchable substrate 31, an orthographic projection of the elastic film layer 39 on the stretchable substrate 31 does not overlap with an orthographic projection of the pixel islands 10, the dummy islands 13, the driving islands 17 and the stretchable bridge 11 on the stretchable substrate. And the orthographic projection of the stretchable substrate 31 on the elastic film 39 is located inside the elastic film 39, so that the damage to the edge of the elastic film 39 in the manufacturing process of the display panel 100 can be avoided, and the manufacturing yield of the stretchable display panel 100 is improved.

Fig. 15 is a schematic view of a display device according to an embodiment of the present application, referring to fig. 15, and based on the same inventive concept, the present application further provides a display device 200, where the display device 200 includes a stretchable display panel 100. The display panel is any one of the stretchable display panels 100 provided herein.

It should be noted that, for the embodiments of the display device provided in the embodiments of the present application, reference may be made to the above-mentioned embodiments of the stretchable display panel, and repeated descriptions are omitted. The display device provided by the application can be: any product and component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a vehicle-mounted display screen, a navigator and the like.

As can be seen from the above embodiments, the stretchable display panel, the display device and the assembling method thereof provided by the present invention at least achieve the following beneficial effects:

Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A stretchable display panel is characterized by comprising a central display area and an edge area surrounding the central display area, wherein one side, which points to the edge area from the central display area, is in a first direction;

along the first direction, the edge zone at least comprises one clearance zone, and the clearance zone is not provided with the stretchable bridge;

along the first direction, one side of the edge region, which is far away from the central display region, is a first edge;

the stretchable display panel further comprises at least one vacant island;

the pixel islands include a first pixel island and a second pixel island, the first pixel island being located between the second pixel island and the edge region;

a pitch between the first pixel island and the second pixel island is smaller than a pitch between the first pixel island and the first edge; the pixel islands are arranged in the central display area and at least comprise one vacant island and the clearance area is arranged between the pixel islands; alternatively, the first and second electrodes may be,

the vacant islands are positioned in the edge area and do not overlap with the clearance area in the direction perpendicular to the plane of the stretchable display panel;

the vacant islands comprise a first vacant island and a second vacant island, the second vacant island is located between the first vacant island and the pixel island along the first direction, and the stretchable display panel comprises a first stretchable direction and a second stretchable direction;

the stretchable display panel further comprises a fixing portion disposed between the first vacant island and the first edge in a stretching direction of the display panel when the stretchable display panel is stretched only in the first stretchable direction or the second stretchable direction; the fixed part is connected with a plurality of pixel islands which are positioned in the central display area and close to the edge area through at least one stretchable bridge.

2. The stretchable display panel of claim 1, wherein when the pixel island is disposed in the central display region, at least one of the dummy islands is disposed in the clear region between the pixel island and the at least one of the dummy islands, at least one of the dummy islands is disposed in the clear region between the pixel island and the first edge.

3. The stretchable display panel of claim 1, wherein the area of the dummy islands is equal to or greater than the area of any of the pixel islands.

4. The stretchable display panel according to claim 1, wherein when the dummy islands include a first dummy island and a second dummy island, and the second dummy island is located between the first dummy island and the pixel island in the first direction, an area of the second dummy island is equal to or larger than an area of any one of the pixel islands and equal to or smaller than an area of the first dummy island.

5. The stretchable display panel of claim 4, wherein the first vacant islands are located at a shortest distance D1, 100 μm D1 μm 1000 μm from the first edge.

6. The stretchable display panel according to claim 4, wherein a distance between the first dummy island and the second dummy island is smaller than a distance between the second dummy island and the pixel island in the first direction.

7. The stretchable display panel of claim 1, wherein when the pixel island is disposed in the central display region, including the clearance region between at least one of the dummy islands and the pixel island, the stretchable display panel comprises a first stretching direction and a second stretching direction;

the stretchable display panel comprises a first state and a second state;

in the first state, the stretchable display panel is in an unstretched state;

in the second state, the stretchable display panel is in a stretched state, wherein a stretching direction is located in the first stretching direction and/or the second stretching direction.

8. The stretchable display panel according to claim 7, wherein in the second state, the stretchable display panel has a greater amount of stretching deformation in the first stretching direction than in the second stretching direction, and the number of the vacant islands in the first stretching direction is greater than the number of the vacant islands in the second stretching direction, and/or the number of the vacant areas in the first stretching direction is greater than the number of the vacant areas in the second stretching direction.

9. The stretchable display panel according to claim 1, wherein when the stretchable display panel further comprises a fixed portion, the fixed portion is disposed between the first vacant island and the first edge in a stretching direction of the display panel when the stretchable display panel is stretched only in the first stretchable direction or the second stretchable direction; when the fixed part is connected with the plurality of pixel islands which are positioned in the central display area and close to the edge area through at least one stretchable bridge, the stretchable display panel further comprises at least one driving island, the driving island is positioned in the edge area and arranged between the vacant island and the central display area, and the driving island is electrically connected with the fixed part and the pixel islands.

10. The stretchable display panel according to claim 1, wherein when the pixel islands comprise a first pixel island and a second pixel island, the first pixel island being located between the second pixel island and the edge region, a pitch between the first pixel island and the second pixel island being smaller than a pitch between the first pixel island and the first edge, the stretchable display panel comprises a first stretchable direction and a second stretchable direction;

when the stretchable display panel is stretched only in the first stretchable direction or the second stretchable direction, the shortest distance between any one of the first pixel islands located in the central display region near the edge region and the first edge in the stretching direction of the stretchable display panel is D2; in a non-stretching direction of the stretchable display panel, the shortest distance between any one of the first pixel islands located in the central display region near the edge region and the first edge is D3, D2 > D3.

11. The stretchable display panel according to claim 10, further comprising a fixing portion disposed between the first pixel island and the first edge in a stretching direction of the stretchable display panel; the fixed part is connected with a plurality of first pixel islands which are positioned in the central display area and close to the edge area through at least one stretchable bridge.

12. The stretchable display panel of claim 10, wherein an area of any one of the first pixel islands is equal to or greater than an area of any one of the second pixel islands.

13. The stretchable display panel according to claim 11, further comprising at least one driving island located at the edge region and disposed between the fixing portion and the central display region, the driving island electrically connecting the fixing portion and the pixel island.

14. A display device characterized in that the display device comprises a stretchable display panel according to any one of claims 1 to 13.