Stretchable display panel and display device

Abstract

Embodiments of the present application disclose a stretchable display panel and a display device. The stretchable display panel comprises a plurality of pixel island groups arranged along a first direction, each of the pixel island groups comprising a plurality of pixel islands arranged along a second direction; the first direction and the second direction intersect; and when the stretchable display panel is in an unstretched state, the pixel islands in two adjacent pixel island groups are arranged staggeredly in the first direction and / or the second direction, and the pixel islands in the two adjacent pixel island groups partially overlap in the first direction and / or the second direction. In this arrangement, in a stretched state, the pixel islands are distributed uniformly, and the display panel after stretching has no continuous large empty area in the first direction and / or the second direction, which can ensure the display brightness of the central regions of four adjacent pixel islands after stretching, and also ensure the continuity of a display picture in the stretched state, thereby improving the display effect of the stretchable display panel in the stretched state.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more particularly to a stretchable display panel and display device. Background Technology

[0002] With the continuous development of flexible display technology, stretchable display devices are gradually being applied in wearable devices, IoT devices, and artificial intelligence, bringing users a brand-new viewing and usage experience. Stretchable display devices can expand the screen area by stretching a previously hidden portion of the screen out from the inside. Existing stretchable display devices achieve this by increasing the spacing between adjacent pixels. After stretching the display screen, large gaps appear between some adjacent pixels. These gaps have no displayable pixels, resulting in a dark area and uneven display, affecting the overall display effect of the stretchable display device. Summary of the Invention

[0003] In view of this, the present invention provides a stretchable display panel and a display device to improve the display effect of the stretchable display panel after stretching.

[0004] In a first aspect, embodiments of the present invention provide a stretchable display panel, comprising:

[0005] Multiple pixel island groups are arranged along a first direction, and each pixel island group includes multiple pixel islands arranged along a second direction; the first direction and the second direction intersect.

[0006] When the stretchable display panel is in an unstretched state, the pixel islands in two adjacent pixel island groups are staggered in the first direction and / or the second direction, and there is a partial overlap area between the pixel islands in two adjacent pixel island groups in the first direction and / or the second direction.

[0007] Secondly, embodiments of the present invention provide a display device including the stretchable display panel described in the first aspect of the present invention.

[0008] The stretchable display panel provided in this embodiment of the invention includes multiple pixel island groups arranged along a first direction, and each pixel island group includes multiple pixel islands arranged along a second direction; the first and second directions intersect; wherein, when the stretchable display panel is in an unstretched state, the pixel islands in two adjacent pixel island groups are staggered in the first and / or second directions, and there is partial overlap between the pixel islands in two adjacent pixel island groups in the first and / or second directions. With this configuration, after stretching, there are no large gaps between four adjacent pixel islands along at least one of the first and second directions. That is, in the stretched state, the distribution of pixel islands is relatively uniform, and the stretched display panel does not have continuous large empty areas in the first and / or second directions, avoiding some areas from appearing dark during display and improving the uniformity of display brightness in all areas of the stretchable display panel in the stretched state; at the same time, it also ensures the continuity of the displayed image in the stretched state, improving the display effect of the stretchable display panel in the stretched state. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of a stretchable display panel before stretching in related technologies;

[0010] Figure 2 for Figure 1 The diagram shows the structure of the stretchable display panel after it has been stretched.

[0011] Figure 3 This is a schematic diagram of the structure of a stretchable display panel provided in an embodiment of the present invention;

[0012] Figure 4 for Figure 1 A magnified structural diagram at point A;

[0013] Figure 5 This is a schematic diagram of the structure at point A under tension.

[0014] Figure 6 and Figure 7 This is a partially enlarged structural diagram of two other stretchable display panels provided in embodiments of the present invention;

[0015] Figure 8 and Figure 9 This is a partially enlarged structural schematic diagram of two more stretchable display panels provided in embodiments of the present invention;

[0016] Figure 10 This is a partially enlarged structural diagram of another stretchable display panel provided in an embodiment of the present invention;

[0017] Figure 11 This is a partially enlarged structural diagram of another stretchable display panel provided in an embodiment of the present invention;

[0018] Figure 12 This is a partially enlarged structural diagram of another stretchable display panel provided in an embodiment of the present invention;

[0019] Figure 13 for Figure 11 The diagram shows the structure of the stretchable display panel in the stretched state.

[0020] Figure 14 This is a partially enlarged structural diagram of another stretchable display panel provided in an embodiment of the present invention;

[0021] Figure 15 and Figure 16 This is a partially enlarged structural diagram of two more stretchable display panels provided in embodiments of the present invention;

[0022] Figure 17 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0024] Figure 1 This is a schematic diagram of the structure of a stretchable display panel before stretching in related technologies. Figure 2 for Figure 1 The diagram shown is a schematic of the stretched structure of the stretchable display panel. Figure 1 and Figure 2 As shown, in related technologies, when the stretchable display panel is in an unstretched state, multiple display pixel islands 2' in the stretchable display panel are arranged in an array along the row direction Y' and column direction X', with adjacent display pixel islands 2' facing each other in the row direction Y' (or column direction X'). In this configuration, when the stretchable display panel is in a stretched state, the display pixel islands 2' are stretched outwards along the row direction Y' and column direction X'; after stretching, the distance between adjacent display pixel islands 2' in the row direction Y' and column direction X' increases. (Reference) Figure 2 A gap a' appears between four adjacent display pixel islands 2' in adjacent rows and columns. Along the row direction Y' and column direction X', there are no display pixel islands 2' at this gap a', meaning there are no display pixels. In other words, after stretching, the display panel has some continuous empty areas (areas without display pixel islands 2'). These empty areas do not emit light and have a large brightness difference compared to the areas where other display pixel islands 2' are located, thus affecting the display effect of the stretchable display panel in the stretched state.

[0025] In view of the deficiencies of the aforementioned related technologies, the inventors propose the technical solution in this application. Specifically, this application provides a stretchable display panel, comprising:

[0026] Multiple pixel island groups are arranged along a first direction, and each pixel island group includes multiple pixel islands arranged along a second direction; the first direction and the second direction intersect.

[0027] When the stretchable display panel is in an unstretched state, the pixel islands in two adjacent pixel island groups are staggered in the first direction and / or the second direction, and there is a partial overlap area between the pixel islands in two adjacent pixel island groups in the first direction and / or the second direction.

[0028] Because of the partial misalignment between two adjacent pixel islands along the first and / or second directions, after stretching, there are no large gaps between four adjacent pixel islands along at least one of the first and second directions. That is, the distribution of pixel islands is relatively uniform in the stretched state. The stretched display panel does not have continuous large empty areas in the first and / or second directions, ensuring that there are pixel islands in the central area of ​​the stretched pixel island unit for display, avoiding the central area from being dark when displayed, and improving the uniformity of display brightness of each area of ​​the stretchable display panel in the stretched state. At the same time, it can also avoid the problem of no pixels in a certain area affecting the continuity of the display image after stretching, and improve the display effect of the stretchable display panel in the stretched state.

[0029] The above is the core idea of ​​this invention. The technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0030] Figure 3 This is a schematic diagram of a stretchable display panel provided in an embodiment of the present invention. Figure 4 for Figure 1 Enlarged structural diagram at point A Figure 5 This is a schematic diagram of the structure at point A under tension, which can be referenced. Figures 3-5 In this embodiment of the invention, the stretchable display panel 100 includes a plurality of pixel island groups 1, which are arranged along a first direction X. Each pixel island group 1 includes a plurality of pixel islands 2 arranged along a second direction Y. The first direction X and the second direction Y intersect. When the stretchable display panel 100 is in an unstretched state, the pixel islands 2 in two adjacent pixel island groups 1 are staggered in the first direction X and / or the second direction Y, and there is a partial overlap area between the pixel islands 2 in two adjacent pixel island groups 1.

[0031] Specifically, such as Figures 3-5 As shown, the stretchable display panel 100 may include a substrate 3, and pixel islands 2 may be disposed on one side of the substrate 3. The substrate 3 may be a flexible substrate 3, but is not limited thereto; using a flexible substrate 3 can improve the stretchability of the display panel. For example, the flexible substrate 3 may be formed of an organosilicon material with good deformation properties, such as polydimethylsiloxane, but is not limited thereto.

[0032] Multiple light-emitting elements (not shown in the figure) may be disposed on the side of pixel island 2 facing away from substrate 3. These light-emitting elements may be organic light-emitting diodes (OLEDs), micro light-emitting diodes (Micro LEDs), and mini light-emitting diodes (Mini LEDs), but are not limited to these. Each pixel island 2 may be provided with light-emitting elements of different colors, such as red, green, and blue light-emitting elements, but is not limited to these. This embodiment of the invention does not limit the number of light-emitting elements disposed on pixel island 2; those skilled in the art can set the number according to actual needs.

[0033] Pixel island 2 and / or substrate 3 may be provided with pixel driving circuits (not shown in the figure) to drive light-emitting elements to emit light. The specific configuration of the pixel driving circuit can be configured by those skilled in the art according to actual needs. This embodiment of the invention does not elaborate on or limit this configuration.

[0034] like Figures 3-5 As shown in the embodiment of the present invention, the plurality of pixel islands 2 can be divided into a plurality of pixel island groups 1 arranged along the first direction X, and each pixel island group 1 is provided with a plurality of pixel islands 2 arranged along the second direction Y. The figure shows that the first direction X is the column direction and the second direction Y is the row direction, but it is not limited to this in practice.

[0035] Figure 4 This refers to the arrangement of the pixel islands 2 in the unstretched state of the stretchable display panel 100. (Continue to refer to...) Figure 4 When the stretchable display panel 100 is in an unstretched state, a pixel island 2 in a certain pixel island group 1 is misaligned with an adjacent pixel island 2 in an adjacent pixel island group 1 in at least one of the first direction X and the second direction Y, and the two pixel islands 2 only partially overlap along at least one of the first direction X and the second direction Y; or, along the first direction X and / or the second direction Y, there are two adjacent pixel islands 2 with their edges partially misaligned, and for a certain pixel island 2, along the first direction X and / or the second direction Y, the pixel island 2 will overlap with two other pixel islands 2 at the same time.

[0036] In this configuration method, please refer to... Figure 5 When the stretchable display panel 100 is in a stretched state, the distance between two adjacent pixel islands 2 in the first direction X and the second direction Y increases. Four adjacent pixel islands 2 in adjacent rows and columns can be defined as a pixel island unit 20. Due to the partial misalignment between two adjacent pixel islands 2 along the first direction X and / or the second direction Y, after stretching, there are no large gaps between four adjacent pixel islands 2 in a pixel island unit 20 along at least one of the first direction X or the second direction Y. That is, in the stretched state, the distribution of pixel islands 2 is relatively uniform, and the stretched display panel 100 does not have continuous large empty areas in the first direction X and / or the second direction Y, avoiding some areas from appearing dark during display and improving the uniformity of display brightness in all areas of the stretched display panel 100 in the stretched state; it also avoids the problem of no pixels in a certain area affecting the continuity of the display image after stretching, improving the display effect of the stretched display panel 100 in the stretched state.

[0037] Figures 3-5 In the illustrated embodiment, when the stretchable display panel 100 is in an unstretched state, the pixel islands 2 in two adjacent pixel island groups 1 are staggered in the first direction X and the second direction Y, and there is partial overlap in both directions X and Y. The actual arrangement is not limited to this. This arrangement ensures that after stretching, there are no gaps or only small gaps between the four adjacent pixel islands 2 in the pixel island unit 20. The stretched display panel also avoids large, continuous empty areas in both directions X and Y, further improving the display effect of the stretchable display panel 100 in the stretched state.

[0038] One point to note is that, as an optional embodiment, in the unstretched state, the edges of two adjacent pixel islands 2 along any direction can be fitted together, so that the pixel islands 2 are densely arranged in the unstretched state of the stretchable display panel 100. However, in actual manufacturing processes, due to precision issues and process errors, it may not be possible to achieve a tight fit between the edges of two adjacent pixel islands 2. Therefore, in other embodiments, a small gap may exist between the edges of two adjacent pixel islands 2. This small gap is related to process precision and is not limited in this embodiment. However, it should be clear that the existence of this small gap will not affect the display effect of the stretchable display panel 100 in the unstretched state. In the following embodiments of the present invention, the edge fitting of adjacent pixel islands 2 in the unstretched state is used as an example for explanation.

[0039] Optionally, the stretchable display panel 100 provided in this embodiment of the invention may also include any structure known to those skilled in the art, which will not be elaborated or limited in this embodiment of the invention.

[0040] The stretchable display panel provided in this embodiment of the invention includes multiple pixel island groups arranged along a first direction, and each pixel island group includes multiple pixel islands arranged along a second direction; the first and second directions intersect; wherein, when the stretchable display panel is in an unstretched state, the pixel islands in two adjacent pixel island groups are staggered in the first and / or second directions, and there is partial overlap between the pixel islands in two adjacent pixel island groups in the first and / or second directions. With this configuration, the pixel islands are more evenly distributed in the stretched state, and the stretched stretchable display panel does not have continuous large empty areas in the first and / or second directions, avoiding some areas from appearing dark during display and improving the uniformity of display brightness in all areas of the stretchable display panel in the stretched state; it also ensures the continuity of the displayed image after stretching, improving the display effect of the stretchable display panel in the stretched state.

[0041] Optional, you can continue to refer to Figure 4 and Figure 5 In a possible embodiment, the plurality of pixel island groups 1 include a plurality of first pixel island groups 11 and a plurality of second pixel island groups 12, the first pixel island groups 11 and the second pixel island groups 12 being arranged alternately along a first direction X; the first pixel island group 11 includes a plurality of first pixel islands 21 arranged along a second direction Y, and the second pixel island group 12 includes a plurality of second pixel islands 22 arranged along a second direction Y; the plurality of first pixel islands 21 in the plurality of first pixel island groups 11 are arranged in an array along the first direction X and the second direction Y, and the plurality of second pixel islands 22 in the plurality of second pixel island groups 12 are arranged in an array along the first direction X and the second direction Y; when the stretchable display panel 100 is in an unstretched state, adjacent first pixel islands 21 and second pixel islands 22 are staggered in the first direction X and / or the second direction Y, and adjacent first pixel islands 21 and second pixel islands 22 have a partially overlapping area in the first direction X and / or the second direction Y.

[0042] Specifically, such as Figure 4 and Figure 5 As shown, in this embodiment, multiple pixel island groups 1 can be divided into multiple first pixel island groups 11 and multiple second pixel island groups 12. Along the first direction X, the first pixel island groups 11 and the second pixel island groups 12 are arranged alternately. Each pixel island 2 in the first pixel island 21 is a first pixel island 21, and each pixel island 2 in the second pixel island 22 is a second pixel island 22.

[0043] It should be noted that, in this embodiment, the alternating arrangement of the first pixel island group 11 and the second pixel island group 12 refers to the alternating arrangement of the entire first pixel island group 11 and the entire second pixel island 22 along the first direction X. In other words, the center line connecting the centers of the first pixel islands 21 in the first pixel island group 11 and the center line connecting the centers of the second pixel islands 22 in the second pixel island group 12 are alternately arranged along the first direction X. The first pixel islands 21 and the second pixel islands 22 do not strictly alternate along the first direction X; adjacent first pixel islands 21 and second pixel islands 22 along the first direction X may have overlapping areas in the second direction Y.

[0044] Continue to refer to Figure 4 and Figure 5 The first pixel island 21 and the second pixel island 22 can be regarded as two types of pixel islands 2. The multiple first pixel islands 21 are arranged in a regular array along the first direction X and the second direction Y in the stretchable display panel 100, and the multiple second pixel islands 22 are arranged in a regular array along the first direction X and the second direction Y in the stretchable display panel 100.

[0045] When the stretchable display panel 100 is not stretched, adjacent first pixel islands 21 and second pixel islands 22 are partially misaligned along at least one of the first direction X and the second direction Y, such that adjacent first pixel islands 21 and second pixel islands 22 partially overlap along at least one of the first direction X and the second direction Y. In this configuration, along the first direction X and / or the second direction Y, the edge of any first pixel island 21 can fit with the edges of two adjacent second pixel islands 22; the edge of any second pixel island 22 can fit with the edges of two adjacent first pixel islands 21.

[0046] In this embodiment, the pixel island 2 is divided into a first pixel island 21 and a second pixel island 22, and multiple first pixel islands 21 (second pixel islands 22) are arranged in an array. The overall arrangement of the pixel islands 2 is relatively uniform, the manufacturing process is relatively simple, and at the same time, the number of pixels per inch (PPI) in each area of ​​the stretchable display panel 100 is consistent, thereby improving the uniformity of the display.

[0047] It should be noted that, unless otherwise specified, the positions of the pixel islands 2 mentioned in the embodiments of the present invention refer to the positions of the stretchable display panel 100 in its unstretched state.

[0048] Optional, you can continue to refer to Figure 4 and Figure 5 In a possible embodiment, the first pixel island 21 and the second pixel island 22 have different shapes in the orthographic projection of their patterns onto the plane of the stretchable display panel 100.

[0049] Specifically, such as Figure 4 and Figure 5 As shown, in some alternative embodiments, the shape of the orthographic projection of the first pixel island 21 onto the plane of the stretchable display panel 100 is different from the shape of the orthographic projection of the second pixel island 22 onto the plane of the stretchable display panel 100. In the following embodiments, the projection of the pixel island 2 onto the plane of the stretchable display panel 100 can be simply referred to as the projection of the pixel island 2.

[0050] In this configuration, when the display panel 100 is in an unstretched state, the shape of another pixel island 2's projection pattern can be designed based on the projection shape of one type of pixel island 2. For example, the projection shape of the second pixel island 22 can be designed using the shape enclosed by the projections of four adjacent first pixel islands 21, making the projection shapes of the first pixel island 21 and the second pixel island 22 as closely matched as possible. In the unstretched state, the edges of adjacent first pixel islands 21 and second pixel islands 22 can be as closely fitted as possible. It can be understood that the smaller the distance between adjacent pixel islands 2 in the unstretched state, the smaller the distance between adjacent pixel islands 2 after stretching. In this way, the distance between adjacent first pixel islands 21 and second pixel islands 22 can be smaller after stretching, improving the continuity of the displayed image after stretching.

[0051] Figure 4 and Figure 5 The projection shape of the first pixel island 21 is rectangular, and the projection shape of the second pixel island 22 is a regular cross shape, but it is not limited to these in practice. Figure 6 and Figure 7 This is a partially enlarged structural diagram of two other stretchable display panels provided in embodiments of the present invention. Figure 6 and Figure 7 The images shown are of the display panel in its unstretched state. Figure 6 In the embodiment shown, the first pixel island 21 has a hexagonal projection shape, and the second pixel island 22 has a rhombus projection shape. Figure 7 In the illustrated embodiment, the projected shape of the first pixel island 21 is pentagonal, and the shape of the second pixel island 22 is arrow-shaped. Actual design methods are far from limited to this, and the embodiments of the present invention are not listed one by one.

[0052] For example, please refer to... Figures 4-7 In an optional embodiment, in the orthographic projection pattern on the plane where the stretchable display panel 100 is located, the first pixel island 21 and the second pixel island 22 may be provided with complementary edge shapes that are adjacent to each other.

[0053] When the projection shapes of the first pixel island 21 and the second pixel island 22 are different, at least the edge shapes of their adjacent parts can be set to be complementary, so that the edges of the first pixel island 21 and the second pixel island 22 fit together as closely as possible in the unstretched state, thereby improving the dense arrangement effect of the first pixel island 21 and the second pixel island 22, further avoiding a large distance between adjacent pixel islands 2 after stretching, and thus better ensuring that each area of ​​the stretchable display panel 100 has pixels for display after stretching.

[0054] Optional, you can continue to refer to Figure 4 and Figure 5 In a possible embodiment, when the stretchable display panel 100 is in an unstretched state, there is a gap between two adjacent first pixel islands 21 along the first direction X and the second direction Y; the second pixel island 22 includes an integrally connected central portion 221, two first peripheral portions 222 and two second peripheral portions 223, the two first peripheral portions 222 are connected to both sides of the central portion 221 of the second pixel island 22 along the first direction X, and the two second peripheral portions 223 are connected to both sides of the central portion 221 of the second pixel island 22 along the second direction Y; the first peripheral portions 222 are located in the gap between two adjacent first pixel islands 21 along the second direction Y, and the second peripheral portions 223 are located in the gap between two adjacent first pixel islands 21 along the first direction X.

[0055] like Figure 4 and Figure 5 As shown, there is a gap between any two adjacent first pixel islands 21 along the first direction X, and a gap between any two adjacent pixel islands 21 along the second direction Y. Four adjacent first pixel islands 21 along the first direction X and the second direction Y can be defined to form a sub-pixel island unit 201. In the unstretched state, the second pixel island 22 is located within the gap between the four first pixel islands 21 in the sub-pixel island unit 201, and the edge of the second pixel island 22 extends to the space between two adjacent first pixel islands 21.

[0056] Specifically, in the unstretched state, the central portion 221 of the second pixel island 22 is located in the middle region of the sub-pixel island unit 201, and the four peripheral portions of the second pixel island 22 are located around the central portion 221 along the first direction X and the second direction Y. For example, in the orientation shown in the figure, the two first peripheral portions 222 of the second pixel island 22 are respectively located between two adjacent first pixel islands 21 above and between two adjacent first pixel islands 21 below in the sub-pixel island unit 201 along the first direction X; the two second peripheral portions 223 of the second pixel island 22 are respectively located between two first pixel islands 21 on the left and between two first pixel islands 21 on the right in the sub-pixel island unit 201 along the second direction Y. The side of the peripheral portion connected to the central portion 221 and the edges of the first pixel units 21 on both sides of the peripheral portion are on the same straight line.

[0057] In this configuration, the first pixel islands 21 and 22 in adjacent first pixel island groups 11 and 12 are staggered along the first direction X and the second direction Y, and there is partial overlap between the first pixel islands 21 and 22 along both directions X and Y. When the stretchable display panel 100 is in a stretched state, the second pixel island 22 is located exactly in the gap between the four first pixel islands 21, so that the gap area is covered by pixels after stretching. Furthermore, in the stretched state, at least a portion of the peripheral structure of the second pixel island 22 can be located between two adjacent first pixel islands 21, thereby ensuring that the area between two adjacent first pixel islands 21 has compensating light emission from the light-emitting elements on the second pixel island 22, further improving the display effect of the stretchable display panel 100 in the stretched state.

[0058] For example, Figure 4 and Figure 5 In the illustrated embodiment, the orthographic projection of the first pixel island 21 onto the plane of the stretchable display panel 100 is rectangular, and the orthographic projection of the second pixel island 22 onto the plane of the stretchable display panel 100 is cross-shaped. Both the projected shapes of the first pixel island 21 and the second pixel island 22 are relatively regular, and the fabrication process of the pixel island 2 is relatively simple.

[0059] Figure 8 and Figure 9 This is a partially enlarged structural diagram of two more stretchable display panels provided in embodiments of the present invention. Figure 8 and Figure 9 The images shown are of the display panel in its unstretched state. Figure 8 In the illustrated embodiment, the projected shape of the first pixel island 21 is circular, and the projected shape of the second pixel island 22 is cross-shaped. The edge of the second pixel island 22 that fits against the first pixel island 21 is arc-shaped and complementary to the circular edge of the first pixel island 21. Figure 9 In the illustrated embodiment, the projected shape of the first pixel island 21 is a regular hexagon, and the projected shape of the second pixel island 22 is a cross-shaped shape, with the edge of the second pixel island 22 being complementary to the edge projection shape of the adjacent first pixel island 21. In other embodiments not shown, the projected shape of the first pixel island 21 can be any shape, as long as the projected shape of the second pixel island 22 is complementary to the projected shape of the first pixel island 21.

[0060] Optional, continue to refer to Figure 4 In the unstretched state, the edge 224 of the second pixel island 22 along the first direction X (second direction Y) can be set to coincide with the centerline 210 of the adjacent first pixel island 21 in the second direction Y (first direction X). Figure 4 For example, the edge 224 of the first peripheral portion 222 of the second pixel island 22 coincides with the centerline 210 of the first pixel island 21 adjacent to it along the first direction X in the second direction Y; the edge 224 of the second peripheral portion 223 of the second pixel island 22 coincides with the centerline 210 of the first pixel island 21 adjacent to it along the second direction Y in the first direction X. Furthermore, since the side where the peripheral portion connects to the center portion 221 and the edges of the first pixel units 21 on both sides of the peripheral portion are on the same straight line, the seventh length L7 of the first peripheral portion 222 along the first direction X is equal to half the first length L1 of the first pixel island 21 along the first direction X; the eighth length L8 of the second peripheral portion 223 along the second direction Y is equal to half the second length L2 of the first pixel island 21 along the second direction Y.

[0061] In this configuration, the edges of two adjacent second pixel islands 22 along a certain direction are located along the extension direction of the center line of the first pixel island 21 that overlaps with the two second pixel islands 22 along the projection perpendicular to that direction. This ensures that, in the unstretched state, the edges of multiple first pixel islands 21 and multiple second pixel islands 22 are arranged as closely as possible to form a tessellation arrangement. This makes the distance between adjacent pixel islands 2 smaller after stretching, thus better ensuring that each area of ​​the stretchable display panel 100 has pixels for display after stretching.

[0062] In this embodiment of the invention, the dimensions of the projected graphics of the first pixel island 21 and the second pixel island 22 are not limited, and those skilled in the art can set them according to actual needs.

[0063] When the projected shape of the first pixel island 21 is rectangular and the projected shape of the second pixel island 22 is cross-shaped, to ensure that the edges of any two adjacent second pixel islands 22 along the first direction X and the second direction Y fit together in the unstretched state, the dimensions of the projected shapes of the first pixel island 21 and the second pixel island 22 can be further limited.

[0064] For example, Figure 10 This is a partially enlarged structural diagram of another stretchable display panel provided in an embodiment of the present invention, which can be further referred to. Figure 4 and Figure 10 In a possible embodiment, the length of the first pixel island 21 along the first direction X is a first length L1, and the length of the first pixel island 21 along the second direction Y is a second length L2; the maximum length of the second pixel island 22 in the first direction X is a third length L3, and the maximum length of the second pixel island 22 in the second direction Y is a fourth length L4; wherein...

[0065] Specifically, such as Figure 4 and Figure 10As shown, the sum of the seventh lengths L7 of the two first peripheral portions 222 along the first direction X is the first length L1 of the first pixel island 21 along the first direction X; the sum of the eighth lengths L8 of the two second peripheral portions 223 along the second direction Y is the second length L2 of the first pixel island 21 along the second direction Y. The maximum length L3 of the second pixel island 22 along the first direction X is the sum of the seventh length L7 of the two first peripheral portions 222 along the first direction X and the fifth length L5 of the center portion 221 along the first direction X (L3 = 2L7 + L5 = L1 + L5). Therefore, the maximum length L3 of the second pixel island 22 along the first direction X should be greater than the first length L1 of the first pixel island 21 along the first direction X. Correspondingly, the maximum length L4 of the second pixel island 22 along the second direction Y is the sum of the eighth length L8 of the two second peripheral portions 223 along the second direction Y and the sixth length L6 of the center portion 221 along the second direction Y (L4 = 2L8 + L6 = L2 + L6). Therefore, the maximum length L4 of the second pixel island 22 along the second direction Y should be greater than the second length L2 of the first pixel island 21 along the second direction Y.

[0066] It is understandable that, since the first pixel island 21 and the second pixel island 22 are complementary graphics, when the size of the stretchable display panel 100 in its unstretched state is constant, the size of the first pixel island 21 and the size of the second pixel island 22 are negatively correlated. The larger the size of the first pixel island 21, the smaller the size of the second pixel island 22; the smaller the size of the first pixel island 21, the larger the size of the second pixel island 22.

[0067] Based on this, this embodiment further specifies that the third length L3 of the second pixel island 22 is greater than or equal to 1.5 times the first length L1 of the first pixel island 21, and less than or equal to 2 times the first length L1; the fourth length L4 of the second pixel island 22 is greater than or equal to 1.5 times the second length L2 of the first pixel island 21, and less than or equal to 2 times the second length L2. At this time, the fifth length L5 of the center portion 221 of the second pixel island 21 along the first direction X is greater than or equal to half the first length L1 of the first pixel island 21, and less than or equal to the first length of the first pixel island 21. Since L1 = 2L7, then L7 ≤ L5 ≤ 2L7; the sixth length L6 of the center portion 221 of the second pixel island 21 along the second direction Y is greater than or equal to half of the second length L2 of the first pixel island 21, and less than or equal to the second length of the first pixel island 21. Since L2 = 2L8, then L8 ≤ L6 ≤ 2L8.

[0068] This configuration allows the first pixel island 21 and the second pixel island 22 to have similar sizes, avoiding the problem that an excessively large size of one type of pixel island 2 would result in an excessively small size of another type of pixel island 2, increasing the difficulty of setting up the light-emitting elements. At the same time, when the sizes of the first pixel island 21 and the second pixel island 22 are similar, a similar number of light-emitting elements can be set on the first pixel island 21 and the second pixel island 22, making the light emission situation of the areas where the first pixel island 21 and the second pixel island 22 are located similar, which can improve the display uniformity of the stretchable display panel 100 in the stretched state. Figure 4 The example shows that the third length L3 of the second pixel island 22 is equal to 1.5 times the first length L1 of the first pixel island 21, and the fourth length L4 of the second pixel island 22 is equal to 1.5 times the second length L2 of the first pixel island 21. Figure 10 The example shows that the third length L3 of the second pixel island 22 is equal to twice the first length L1 of the first pixel island 21, and the fourth length L4 of the second pixel island 22 is equal to twice the second length L2 of the first pixel island 21. However, it is not limited to this. It is sufficient to control the first length L1 (second length L2) of the first pixel island 21 and the third length L3 (fourth length L4) of the second pixel island 22 to satisfy the above range.

[0069] Optional, Figure 11 This is a partially enlarged structural diagram of another stretchable display panel provided in an embodiment of the present invention. Figure 12 This is a partially enlarged structural diagram of another stretchable display panel provided in an embodiment of the present invention, which can be referred to. Figure 11 and Figure 12 In a possible embodiment, the first pixel island 21 and the second pixel island 22 have the same shape in the orthographic projection of their patterns onto the plane of the stretchable display panel 100.

[0070] Specifically, Figure 11 and Figure 12 In the illustrated embodiment, the projected shape of the first pixel island 21 is the same as the projected shape of the second pixel island 22. The fabrication of the first pixel island 21 and the second pixel island 22 is relatively simple, which helps to reduce the overall fabrication difficulty of the stretchable display panel 100.

[0071] For reference Figure 11 and Figure 12When the projection shapes of the first pixel island 21 and the second pixel island 22 are the same, when the stretchable display panel 100 is in an unstretched state, a gap may be provided between two adjacent first pixel islands 21 along the first direction X, and the second pixel island 22 may be located between two adjacent first pixel islands 21 along the first direction X; or, when the stretchable display panel 100 is in an unstretched state, a gap may be provided between two adjacent first pixel islands 21 along the second direction Y, and the second pixel island 22 may be located between two adjacent first pixel islands 21 along the second direction Y.

[0072] Specifically, such as Figure 11 As shown, in the unstretched state, in a group of first pixel islands 11 (second pixel islands 12), the edges of multiple first pixel islands 21 (second pixel islands 22) arranged along the second direction Y are attached to each other. There is a gap between two adjacent first pixel islands 21 along the first direction X, and a second pixel island 22 is located within this gap. That is, along the first direction X, the first pixel islands 21 and second pixel islands 22 are arranged alternately. In this configuration, the first pixel islands 21 and second pixel islands 22 adjacent along the first direction X are staggered, and there is a partial overlap between the first pixel islands 21 and second pixel islands 22 along the first direction X. In the first direction X, the first pixel island 21 (second pixel island 22) simultaneously overlaps with two adjacent second pixel islands 22 (first pixel islands 21).

[0073] Figure 13 for Figure 11 The diagram shown is a structural schematic of the stretchable display panel in its stretched state. (Refer to...) Figure 13 When the stretchable display panel 100 is in a stretched state, the distance between two adjacent first pixel islands and second pixel islands 22 in the first direction X and the second direction Y increases. Although there is still a gap a between four adjacent first pixel islands 21 in a pixel island unit 20, there is a second pixel island 22 on one side of the gap a along the first direction X. The light emitted by the light-emitting element (not shown in the figure) on the second pixel island 22 can cover the gap a area, thereby using the second pixel island 22 to compensate for the light emission. Similarly, the display brightness of the central area of ​​the pixel island unit 20 after stretching can also be guaranteed, thus improving the display effect of the stretchable display panel 100 in the stretched state.

[0074] Specifically, such as Figure 12As shown, in the unstretched state, in a group of first pixel islands 11 (second pixel islands 12), there are gaps between adjacent first pixel islands 21 (second pixel islands 22) arranged along the second direction Y. The edges of the first pixel islands 21 in adjacent first pixel island groups 11 are attached, and the second pixel islands 22 are located in the gaps between adjacent first pixel islands 21 along the second direction Y. Along the second direction Y, the first pixel islands 21 and second pixel islands 22 are arranged alternately. In this configuration, the first pixel islands 21 and second pixel islands 22 adjacent along the second direction Y are staggered, and there is a partial overlap between the first pixel islands 21 and second pixel islands 22 along the second direction Y. In the second direction Y, the first pixel island 21 (second pixel island 22) overlaps with two adjacent second pixel islands 22 (first pixel islands 21). Figure 12 The scheme shown is the same as Figure 11 The solutions shown are essentially the same, and the principle of compensating for light emission when the stretchable display panel 100 is in a stretched state is also the same, so it will not be elaborated here.

[0075] Optional, Figure 14 This is a partially enlarged structural schematic diagram of another stretchable display panel provided in an embodiment of the present invention, which can be referred to in conjunction with reference to... Figures 11-14 The orthographic projection of the first pixel island 21 and the second pixel island 22 onto the plane of the stretchable display panel 100 is a regular quadrilateral or a regular hexagon.

[0076] Specifically, when the projected shapes of the first pixel island 21 and the second pixel island 22 are the same, the projected graphics of the first pixel island 21 and the second pixel island 22 can be set to be regular polygons, and the size of the two projected graphics can be the same. In this way, a similar or the same number of light-emitting elements can be set on the first pixel island 21 and the second pixel island 22, thereby improving the display uniformity of different areas.

[0077] When the projected shape of the first pixel island 21 and the second pixel island 22 is a regular hexagon, any edge of the first pixel island 21 and the second pixel island 22 can be mutually compensated. Before stretching, it can ensure that the pixel islands 2 are closely packed. After stretching, the first pixel island 21 and the second pixel island 22 are separated in the first direction X and the second direction Y. Because there is a diagonal compensation area in the pixel island 2, the distance between adjacent first pixel islands 21 and second pixel islands 22 is small after stretching. The pixel compensation effect of the second pixel island 22 on the first pixel island 21 is better, which improves the uniformity of the distribution of pixel islands 2 after stretching.

[0078] Optional, you can continue to refer to Figure 4When the stretchable display panel 100 is in an unstretched state, the distance D1 between the centers of two adjacent first pixel islands 21 along the first direction X is equal to the distance D2 between the centers of two adjacent second pixel islands 22 along the first direction X; the distance D3 between the centers of two adjacent first pixel islands 21 along the second direction Y is equal to the distance D4 between the centers of two adjacent second pixel islands 22 along the second direction Y.

[0079] like Figure 4 As shown, when the stretchable display panel 100 is not stretched, the distance between the centers of two adjacent pixel islands 2 is the length of the line connecting the centers of the two adjacent pixel islands 2. In this embodiment, when the first pixel islands 21 and the second pixel islands 22 are closely arranged, in the first direction X, the length D1 of the line connecting the centers of two adjacent first pixel islands 21 is the same as the length D2 of the line connecting the centers of two adjacent second pixel islands 22 in the same direction; and in the second direction Y, the length D3 of the line connecting the centers of two adjacent first pixel islands 21 is the same as the length D4 of the line connecting the centers of two adjacent second pixel islands 22 in the same direction.

[0080] Optional, Figure 15 and Figure 16 This is a partially enlarged structural diagram of two more stretchable display panels provided in embodiments of the present invention. Figure 15 and Figure 16 The stretchable display panel shown is in a stretched state, as can be seen from [reference]. Figure 15 and Figure 16 In a possible embodiment, the pixel island group 1 may include a plurality of first pixel island groups 11 and a plurality of second pixel island groups 12, with the first pixel island groups 11 and the second pixel island groups 12 arranged alternately along a first direction X; the first pixel island group 11 includes a plurality of first pixel islands 21 arranged along a second direction Y, and the second pixel island group 12 includes a plurality of second pixel islands 22 arranged along the second direction Y. In this embodiment, the division method of the first pixel island group 11 and the second pixel island group 12 is the same as in the above embodiments, and will not be repeated here.

[0081] Furthermore, in this embodiment, the stretchable display panel 100 also includes multiple first stretching bridges 4, which extend along a first direction X and are arranged along a second direction Y. The first stretching bridges 4 extend in a straight line and include first sub-stretching bridges 41 and second sub-stretching bridges 42. The first sub-stretching bridges 41 connect multiple first pixel islands 21 arranged along the first direction X, and the second sub-stretching bridges 42 connect multiple second pixel islands 22 arranged along the first direction X; alternatively, the first stretching bridges 4 extend in a bent manner, sequentially connecting the first pixel islands 21 and second pixel islands 22 that are alternately staggered along the first direction X.

[0082] like Figure 15 and Figure 16 As shown, the first stretch bridge 4 connects adjacent pixel islands 2 along the first direction X, and the first stretch bridge 4 is a flexible connection structure. When the stretchable display panel 100 is in an unstretched state, the first stretch bridge 4 can be in a rolled-up and contracted state, with the pixel islands 2 connected to the first stretch bridge 4 closely arranged; when the stretchable display panel 100 is in a stretched state, the first stretch bridge 4 is stretched, the distance between adjacent pixel islands 2 connected to the first stretch bridge 4 increases, thereby increasing the display area.

[0083] The extension direction of the first stretching bridge 4 is the same as the direction in which the first pixel island group 11 and the second pixel island group 12 are alternately arranged, that is, the first stretching bridge 4 extends along the first direction X as a whole; the arrangement direction of the plurality of first stretching bridges 4 is the same as the arrangement direction of the pixel islands 2 in the pixel island group 1, that is, the plurality of first stretching bridges 4 are arranged along the second direction Y. Stretching the first stretching bridge 4 can increase the distance between adjacent pixel islands 2 along the first direction X, so that the display area of ​​the stretchable display panel 100 is stretched in the first direction X.

[0084] Optionally, the first stretching bridge 4 can also be used to transmit signals required for display, such as data signals, scan signals, and power supply voltage signals, but is not limited thereto. For example, the first stretching bridge 4 may include data lines, which may be disposed inside the first stretching bridge 4 to transmit data signals to the pixel islands 2 arranged along the first direction X, and then the data signals are transmitted to the light-emitting elements on the pixel islands 2.

[0085] In this application, where the adjacent first pixel island 21 and second pixel island 22 are partially misaligned, this embodiment exemplarily proposes two connection methods between the first stretching bridge 4 and the first pixel island 21 or the second pixel island 22.

[0086] For example, refer to Figure 15The first stretching bridge 4 extends in a straight line along the first direction X. One first stretching bridge 4 can connect pixel islands 2 of the same type. For example, the first stretching bridge 4 can be divided into a first sub-stretching bridge 41 and a second sub-stretching bridge 42, which are arranged alternately along the second direction Y. The first sub-stretching bridge 41 can be used to connect multiple first pixel islands 21 that are also arranged along the first direction X and whose centers are on the same straight line. The second sub-stretching bridge 42 can be used to connect multiple second pixel islands 22 that are also arranged along the first direction X and whose centers are on the same straight line. In this configuration, the arrangement of the first stretching bridge 4 is relatively regular, the manufacturing process is relatively simple, and the risk of line breakage is low. Furthermore, when the stretchable display panel 100 is stretched along the first direction X, the straight-extending first stretching bridge 4 is stretched along the first direction X, meaning the direction of the force on the first stretching bridge 4 is parallel to its extension direction. Thus, the first stretching bridge 4 is easier to pull apart, making the stretchable display panel 100 easier to stretch.

[0087] For example, refer to Figure 16 The first stretching bridge 4 can extend in a bent shape along the first direction X, in which case one first stretching bridge 4 can connect two types of pixel islands 2. For example, the first stretching bridge 4 can sequentially connect the first pixel island 21 and the second pixel island 22 that are staggered along the first direction X, that is, the first stretching bridge 4 connects the first pixel island 21 and the second pixel island 22 that are staggered adjacent along the first direction X. In this configuration, the first pixel island 21 and the second pixel island 22 adjacent along the first direction X receive the same data signal, thereby improving the brightness uniformity of the light-emitting elements on the first pixel island 21 and the second pixel island 22 adjacent along the first direction X, making the display screen more uniform.

[0088] Optional, you can continue to refer to Figure 15 In this embodiment, the pixel islands 2 are divided in the same way as in the above embodiments. That is, the pixel island group 1 includes multiple first pixel island groups 11 and multiple second pixel island groups 12, with the first pixel island groups 11 and the second pixel island groups 12 arranged alternately along the first direction X. The first pixel island group 11 includes multiple first pixel islands 21 arranged along the second direction Y, and the second pixel island group 12 includes multiple second pixel islands 22 arranged along the second direction Y. Further, the stretchable display panel 100 may also include multiple second stretching bridges 5, which extend along the second direction Y and are arranged along the first direction X. The second stretching bridges 5 extend in a straight line and include a third sub-stretching bridge 51 and a fourth sub-stretching bridge 52. The third sub-stretching bridge 51 connects the multiple first pixel islands 21 arranged along the second direction Y, and the fourth sub-stretching bridge 52 connects the multiple second pixel islands 22 arranged along the second direction Y; or, the second stretching bridges 5 extend in a bent manner and sequentially connect the first pixel islands 21 and the second pixel islands 22 that are alternately staggered along the second direction Y.

[0089] like Figure 15 and Figure 16 As shown, the second stretch bridge 5 connects adjacent pixel islands 2 along the second direction Y, and the second stretch bridge 5 is also a flexible connection structure. When the stretchable display panel 100 is in an unstretched state, the second stretch bridge 5 can be in a rolled-up and contracted state, with adjacent pixel islands 2 connected to the second stretch bridge 5 closely spaced; when the stretchable display panel 100 is in a stretched state, the second stretch bridge 5 is stretched, the distance between adjacent pixel islands 2 connected to the second stretch bridge 5 increases, thereby increasing the display area.

[0090] The extension direction of the second stretching bridge 5 is the same as the arrangement direction of the pixel islands 2 within the pixel island group 1, that is, the second stretching bridge 5 extends entirely along the second direction Y; the arrangement direction of the multiple second stretching bridges 5 is the same as the alternating arrangement direction of the first pixel island group 11 and the second pixel island group 12, that is, the multiple second stretching bridges 5 are arranged along the first direction X. Stretching the second stretching bridge 5 can increase the distance between adjacent pixel islands 2 along the second direction Y, thus elongating the display area of ​​the stretchable display panel 100 in the second direction Y. Figure 15 and Figure 16 As shown, in this embodiment of the invention, a first stretching bridge 4 and a second stretching bridge 5 can be provided simultaneously, so that the display area of ​​the stretchable display panel 100 can be stretched in the first direction X and the second direction Y.

[0091] Optionally, the second stretching bridge 5 can also be used to transmit signals required for display, such as data signals, scan signals, and power supply voltage signals, but is not limited thereto. For example, the second stretching bridge 5 may include scan lines, which may be disposed inside the second stretching bridge 5 to transmit scan signals to the pixel islands 2 arranged along the second direction Y, and then the scan signals are transmitted to the light-emitting elements on the pixel islands 2.

[0092] Accordingly, in the technical solution of this application, the adjacent first pixel island 21 and second pixel island 22 are partially misaligned. This embodiment exemplarily proposes two connection methods between the second stretching bridge 5 and the first pixel island 21 or the second pixel island 22.

[0093] For example, refer to Figure 15The second stretching bridge 5 extends in a straight line along the second direction Y. One second stretching bridge 5 can connect pixel islands 2 of the same type. For example, the second stretching bridge 5 can be divided into a third sub-stretching bridge 51 and a fourth sub-stretching bridge 52, which are arranged alternately along the first direction X. The third sub-stretching bridge 51 can be used to connect multiple first pixel islands 21 that are also arranged along the second direction Y and whose centers are on the same straight line. The fourth sub-stretching bridge 52 can be used to connect multiple second pixel islands 22 that are also arranged along the second direction Y and whose centers are on the same straight line. In this configuration, the arrangement of the second stretching bridge 5 is relatively regular, the manufacturing process is relatively simple, and the risk of line breakage is low. Furthermore, when the stretchable display panel 100 is stretched along the second direction Y, the straight-extending second stretching bridge 5 is stretched along the second direction Y, meaning the direction of the force on the second stretching bridge 5 is parallel to its extension direction. Thus, the second stretching bridge 5 is easier to pull apart, making the stretchable display panel 100 easier to stretch.

[0094] For example, refer to Figure 16 The second stretching bridge 5 can extend in a bent shape along the second direction Y, in which case one second stretching bridge 5 can connect two types of pixel islands 2. For example, the second stretching bridge 5 can sequentially connect the first pixel island 21 and the second pixel island 22 that are staggered along the second direction Y, that is, the second stretching bridge 5 connects the first pixel island 21 and the second pixel island 22 that are staggered adjacent along the second direction Y. In this configuration, the first pixel island 21 and the second pixel island 22 adjacent along the second direction Y can receive the same scan signal, so that the light-emitting elements on the first pixel island 21 and the second pixel island 22 adjacent along the second direction Y can be driven by the same scan signal, reducing the number of shift registers providing the scan signal and reducing the border area occupied by the shift registers.

[0095] It should be noted that in the accompanying drawings of this embodiment, when the stretchable display panel is in an unstretched state, the first stretching bridge 4 and the second stretching bridge 5 are shown.

[0096] When the first stretchable bridge 4 and the second stretchable bridge 5 are simultaneously provided in the stretchable display panel 100, the arrangement of the first stretchable bridge 4 and the second stretchable bridge 5 can be selected according to the specific arrangement of the first pixel island 21 and the second pixel island 22 on the stretchable display panel 100.

[0097] For example, when the pixel islands 2 in the stretchable display panel 100 are arranged as follows: Figure 11 As shown, adjacent first pixel islands 21 (second pixel islands 22) are attached along the second direction Y, and the first pixel islands 21 and second pixel islands 22 are arranged alternately and staggered along the first direction X. At this time, a first stretching bridge can be set ( Figure 11(Not shown in the image) extends in a bent manner, and the first stretching bridge sequentially connects the first pixel island 21 and the second pixel island 22, which are arranged alternately and staggered along the first direction X; the second stretching bridge ( Figure 11 (Not shown in the image) Extending in a straight line, the second stretching bridge includes a third sub-stretching bridge and a fourth sub-stretching bridge. The third sub-stretching bridge connects multiple first pixel islands 21 arranged along the second direction Y, and the fourth sub-stretching bridge connects multiple second pixel islands 22 arranged along the second direction Y. Thus, the arrangement of the first and second stretching bridges matches the arrangement of the first pixel islands 21 and second pixel islands 22, reducing the difficulty of stretching bridge placement while ensuring the connection effect between adjacent pixel islands 2.

[0098] For example, when the pixel islands 2 in the stretchable display panel 100 are arranged as follows: Figure 12 As shown, adjacent first pixel islands 21 (second pixel islands 22) are attached along the first direction X, and the first pixel islands 21 and second pixel islands 22 are alternately staggered along the second direction Y. At this time, a first stretching bridge can be set ( Figure 12 (Not shown in the image) Extends in a straight line. The first stretching bridge includes a first sub-stretching bridge and a second sub-stretching bridge. The first sub-stretching bridge connects a plurality of first pixel islands 21 arranged along the first direction X, and the second sub-stretching bridge connects a plurality of second pixel islands 22 arranged along the first direction X. The second stretching bridge ( Figure 12 (Not shown in the image) Extends in a bent manner, and the second stretch bridge sequentially connects the first pixel island 21 and the second pixel island 22, which are arranged alternately and staggered along the second direction Y. This is to match the arrangement of the first stretch bridge and the second stretch bridge with the arrangement of the first pixel island 21 and the second pixel island 22, reducing the difficulty of stretch bridge installation while ensuring the connection effect between adjacent pixel islands 2.

[0099] Of course, the arrangement of the first and second tension bridges is not limited to this. In actual application, those skilled in the art can adjust the design of the first and second tension bridges according to the actual situation.

[0100] Based on the same inventive concept, embodiments of the present invention also provide a display device. Figure 17 This is a schematic diagram of a display device provided in an embodiment of the present invention. Figure 17 As shown, the display device includes the stretchable display panel 100 provided in any embodiment of the present invention. Therefore, the display device provided in the embodiments of the present invention has the corresponding beneficial effects of the stretchable display panel 100 provided in the embodiments of the present invention, which will not be elaborated here. For example, the display device can be an electronic device such as a mobile phone, computer, smart wearable device (e.g., smartwatch), and in-vehicle display device, and the embodiments of the present invention do not limit it to this.

[0101] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A stretchable display panel, characterized in that, include: Multiple pixel island groups, the multiple pixel island groups are arranged along a first direction, and each pixel island group includes multiple pixel islands arranged along a second direction; The first direction and the second direction intersect; Wherein, when the stretchable display panel is in an unstretched state, the pixel islands in two adjacent pixel island groups are staggered in the first direction and / or the second direction, and there is a partial overlap area between the pixel islands in two adjacent pixel island groups in the first direction and / or the second direction. The plurality of pixel island groups include a plurality of first pixel island groups and a plurality of second pixel island groups, wherein the first pixel island groups and the second pixel island groups are arranged alternately along the first direction; The first pixel island group includes a plurality of first pixel islands arranged along the second direction, and the second pixel island group includes a plurality of second pixel islands arranged along the second direction; The plurality of first pixel islands in the plurality of first pixel island groups are arranged in an array along the first direction and the second direction, and the plurality of second pixel islands in the plurality of second pixel island groups are arranged in an array along the first direction and the second direction; When the stretchable display panel is in an unstretched state, the adjacent first pixel islands and second pixel islands are staggered in the first direction and / or the second direction, and the adjacent first pixel islands and second pixel islands have a partial overlap area in the first direction and / or the second direction. In the orthographic projection of the plane where the stretchable display panel is located, the edge shapes of the first pixel island and the second pixel island that are adjacent to each other are complementary. When the stretchable display panel is in an unstretched state, there is a gap between two adjacent first pixel islands along the first direction and the second direction; The second pixel island includes an integrally connected central portion, two first peripheral portions, and two second peripheral portions. The two first peripheral portions are connected to both sides of the central portion of the second pixel island along the first direction, and the two second peripheral portions are connected to both sides of the central portion of the second pixel island along the second direction. The first peripheral portion is located in the gap between two adjacent first pixel islands along the second direction, and the second peripheral portion is located in the gap between two adjacent first pixel islands along the first direction.

2. The stretchable display panel according to claim 1, characterized in that, The first pixel island and the second pixel island have different shapes in their orthographic projections onto the plane of the stretchable display panel.

3. The stretchable display panel according to claim 1, characterized in that, The first pixel island has a rectangular orthographic projection on the plane of the stretchable display panel, and the second pixel island has a cross-shaped orthographic projection on the plane of the stretchable display panel.

4. The stretchable display panel according to claim 3, characterized in that, The length of the first pixel island along the first direction is a first length L1, and the length of the first pixel island along the second direction is a second length L2; The maximum length of the second pixel island in the first direction is the third length L3, and the maximum length of the second pixel island in the second direction is the fourth length L4; in, L1≤L3≤2L1, L2≤L4≤2L2.

5. The stretchable display panel according to claim 1, characterized in that, The first pixel island and the second pixel island have the same shape in their orthographic projections onto the plane of the stretchable display panel.

6. The stretchable display panel according to claim 5, characterized in that, When the stretchable display panel is in an unstretched state, there is a gap between two adjacent first pixel islands along the first direction, and the second pixel island is located between two adjacent first pixel islands along the first direction. or, When the stretchable display panel is in an unstretched state, there is a gap between two adjacent first pixel islands along the second direction, and the second pixel island is located between two adjacent first pixel islands along the second direction.

7. The stretchable display panel according to claim 6, characterized in that, The first pixel island and the second pixel island have orthographic projections onto the plane of the stretchable display panel that form a regular quadrilateral or a regular hexagon.

8. The stretchable display panel according to claim 1, characterized in that, When the stretchable display panel is in an unstretched state, the distance between the centers of two adjacent first pixel islands along the first direction is equal to the distance between the centers of two adjacent second pixel islands along the first direction. The distance between the centers of two adjacent first pixel islands along the second direction is equal to the distance between the centers of two adjacent second pixel islands along the second direction.

9. The stretchable display panel according to claim 1, characterized in that, The pixel island group includes multiple first pixel island groups and multiple second pixel island groups, which are arranged alternately along the first direction; each first pixel island group includes multiple first pixel islands arranged along the second direction, and each second pixel island group includes multiple second pixel islands arranged along the second direction. The stretchable display panel further includes multiple first stretch bridges, which extend along the first direction and are arranged along the second direction; The first stretching bridge extends in a straight line and includes a first sub-stretching bridge and a second sub-stretching bridge. The first sub-stretching bridge connects a plurality of first pixel islands arranged along the first direction, and the second sub-stretching bridge connects a plurality of second pixel islands arranged along the first direction. or, The first stretching bridge extends in a bent manner, and the first stretching bridge sequentially connects the first pixel island and the second pixel island, which are arranged alternately and staggered along the first direction.

10. The stretchable display panel according to claim 1, characterized in that, The pixel island group includes a plurality of first pixel island groups and a plurality of second pixel island groups, wherein the first pixel island groups and the second pixel island groups are arranged alternately along the first direction; The first pixel island group includes a plurality of first pixel islands arranged along the second direction, and the second pixel island group includes a plurality of second pixel islands arranged along the second direction; The stretchable display panel further includes multiple second stretch bridges, which extend along the second direction and are arranged along the first direction; The second stretching bridge extends in a straight line and includes a third sub-stretching bridge and a fourth sub-stretching bridge. The third sub-stretching bridge connects a plurality of first pixel islands arranged along the second direction, and the fourth sub-stretching bridge connects a plurality of second pixel islands arranged along the second direction. or, The second stretching bridge extends in a bent manner, and the second stretching bridge sequentially connects the first pixel island and the second pixel island, which are arranged alternately and staggered along the second direction.

11. A display device, characterized in that, include: The stretchable display panel according to any one of claims 1-10.

Images