Display panel and display device

Abstract

The application provides a display panel and a display device, and relates to the technical field of display, and the display panel comprises a stretched state and an unstretched state, the display panel comprises a plurality of sub-pixels and a plurality of first leads, in the unstretched state, the plurality of sub-pixels have a first arrangement mode arranged along the first leads, and at least part of the leads are curved; in the stretched state, the plurality of sub-pixels have a second arrangement mode arranged along the first leads, the leads curved in the unstretched state become straight lines, in the unstretched state, part of the plurality of sub-pixels are in an on state, and the rest of the plurality of sub-pixels are in an off state, and in the stretched state, the plurality of sub-pixels are all in the on state. The display panel provided by the application can improve the use performance of the display device.

Description

Technical Field

[0001] This application belongs to the field of display technology, and more specifically, relates to a display panel and a display device. Background Technology

[0002] Currently, organic light-emitting diode (OLED) display panels have advantages such as high image quality, energy saving, small thickness and wide application range, and are widely used in various consumer electronic products such as mobile phones, televisions, laptops, and desktop computers.

[0003] However, the performance and manufacturing process of current display devices need to be improved. Summary of the Invention

[0004] The purpose of this application is to provide a display panel and a display device to improve the performance of the display device.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] In a first aspect, a display panel is provided, including a stretched state and an unstretched state. The display panel includes a plurality of sub-pixels and a plurality of leads. In the unstretched state, the plurality of sub-pixels have a first arrangement along the leads, and at least some of the leads are curved. In the stretched state, the plurality of sub-pixels have a second arrangement along the first leads, and the curved leads in the unstretched state become straight lines.

[0007] Through the above technical solution, the display panel provided in this application is stretchable and can switch between a stretched state and an unstretched state, making it suitable for stretchable display panels. Furthermore, when the display panel switches from an unstretched state to a stretched state, the curved leads in the unstretched state are stretched into straight lines. During the stretching process, the leads are not yet fully straightened, resulting in lower stress on the leads, which improves reliability and thus enhances the performance of the display device.

[0008] Therefore, the display panel provided in this application can improve the performance of the display device.

[0009] In some embodiments, the display panel provided in this application has some sub-pixels lit up in the unstretched state, and the number of lit sub-pixels is n; in the stretched state, at least some sub-pixels are lit up, and the number of lit sub-pixels is m, where m > n.

[0010] In this way, after the display panel provided in this application switches from an unstretched state to a stretched state, the number of lit sub-pixels increases, which is beneficial to improving the display effect.

[0011] Optionally, in the unstretched state of the display panel, the number of lit sub-pixels per unit area is p; in the stretched state of the display panel, the number of lit sub-pixels per unit area is q, where q ≥ p.

[0012] In this way, after the display panel provided in this application switches from an unstretched state to a stretched state, the number of lit sub-pixels per unit area (pixel density) remains unchanged or increases, which is beneficial to improving the display effect.

[0013] Optionally, at least one lead's corresponding sub-pixels are all off when the display panel is in an unstretched state, and all are on when the display panel is in a stretched state. This increases the number of lit sub-pixels after the display panel switches from an unstretched state to a stretched state, thus improving the display effect.

[0014] In some embodiments, the lead includes a first lead and a second lead. The first lead extends along a first direction, and multiple first leads are spaced apart along a direction perpendicular to the first direction. The second lead extends along a second direction, and multiple second leads are spaced apart along a direction perpendicular to the second direction. The first lead intersects with the multiple second leads respectively, and the second lead intersects with the multiple first leads respectively. The first direction intersects with the second direction.

[0015] In this way, the second lead can intersect with multiple first leads respectively, and the first lead can intersect with multiple second leads respectively, which helps to improve the tensile stability of the first and second leads.

[0016] Optionally, the first direction is perpendicular to the second direction, and multiple first leads are spaced apart along the second direction, while multiple second leads are spaced apart along the first direction. This makes the display panel provided in this application easy to stretch.

[0017] In some implementations, multiple sub-pixels are arranged along a first lead. When the display panel is not stretched, the first lead is curved and includes multiple sequentially connected first arc segments. Along the spacing direction of the multiple first leads, the arc centers of two adjacent first arc segments are located on different sides of the first lead.

[0018] In this way, the stretching ratio of the first lead is consistent on both sides in the interval direction of the multiple first leads, which helps to improve the stretching stability.

[0019] Optionally, the ratio of the arc length to the chord length of the first arc segment is K1, where 1 < K1 ≤ 1.6. Optionally, in the unstretched state, every two adjacent first leads are axially symmetrically distributed, and the axis of symmetry extends along a first direction; or, any two first leads have the same shape. This helps to improve the uniformity of the sub-pixel arrangement in the display panel.

[0020] In some implementations, multiple sub-pixels are arranged along the second lead. When the display panel is not stretched, the second lead is curved. The first lead includes multiple sequentially connected second arc segments. Along the spacing direction of the multiple second leads, the arc centers of two adjacent second arc segments are located on different sides of the second lead.

[0021] In this way, the display panel can deform not only along the extension direction of the first lead but also along the extension direction of the second lead, allowing for uniform deformation during the stretching process. Furthermore, the consistent stretching ratio on both sides of the second lead in the intervals between the multiple second leads improves stretching stability.

[0022] Optionally, the ratio of the arc length to the chord length of the second arc segment is K2, where 1 < K2 ≤ 1.6.

[0023] Optionally, in the unstretched state, every two adjacent second leads of the display panel are axially symmetrically distributed, with the axis of symmetry extending along a second direction. This facilitates uniform stretching.

[0024] Optionally, every two adjacent first leads are connected to two adjacent second leads to form a closed area, and the areas of any two closed areas are equal. In this way, the display panel can deform uniformly during the stretching process, which helps to improve the uniformity of stress distribution.

[0025] Optionally, when the display panel is not stretched, the first lead is curved and includes multiple sequentially connected first arc segments. Along the spacing direction of the multiple first leads, the arc centers of two adjacent first arc segments are located on different sides of the first lead.

[0026] Optionally, the ratio of the arc length to the chord length of the first arc segment is K1, where 1 < K1 ≤ 1.6.

[0027] Optionally, in the unstretched state, every two adjacent first leads of the display panel are axially symmetrically distributed, and the axis of symmetry extends along a first direction.

[0028] Optionally, the display panel includes a plurality of pixel groups arranged along the second lead, the pixel groups are arranged along the second arc segment, and the pixel groups include a plurality of sub-pixels. In the unstretched state, at least one sub-pixel in the pixel group is not lit, and in the stretched state, each sub-pixel in the pixel group is lit.

[0029] Optionally, the multiple sub-pixels in the pixel group include a first sub-pixel, a second sub-pixel, and a third sub-pixel. The first sub-pixel, the second sub-pixel, and the third sub-pixel emit different colors and are arranged alternately along the second direction. The second sub-pixel is located on the side of the second arc segment facing the center of the arc, while the first sub-pixel and the third sub-pixel are located on the side of the second arc segment away from the center of the arc.

[0030] Optionally, along the second direction, the distance between the first sub-pixel and the second sub-pixel is equal to the distance between the second sub-pixel and the third sub-pixel.

[0031] Optionally, the display panel includes a first pixel group and a second pixel group. The first pixel group is arranged along a second arc segment of one of two adjacent second leads, and the second pixel group is arranged along a second arc segment of the other of two adjacent second leads. The first pixel group includes multiple sub-pixels, and the second pixel group includes multiple sub-pixels. The multiple sub-pixels in the first pixel group include a first sub-pixel, a second sub-pixel, and a third sub-pixel. The first, second, and third sub-pixels in the first pixel group emit different colors and are arranged alternately along a second direction. The multiple sub-pixels in the second pixel group include a fourth sub-pixel, a fifth sub-pixel, and a sixth sub-pixel. The fourth, fifth, and sixth sub-pixels in the second pixel group emit different colors. The pixels are arranged in different colors and spaced apart along the second direction; the orthographic projection of the first sub-pixel in the first pixel group on the projection surface overlaps with the orthographic projection of the fourth sub-pixel in the second pixel group on the projection surface, the orthographic projection of the second sub-pixel in the first pixel group on the projection surface overlaps with the orthographic projection of the fifth sub-pixel in the second pixel group on the projection surface, and the orthographic projection of the third sub-pixel in the first pixel group on the projection surface overlaps with the orthographic projection of the sixth sub-pixel in the second pixel group on the projection surface, wherein the projection surface is perpendicular to the spacing direction of the plurality of second leads; wherein the first sub-pixel and the fourth sub-pixel have the same emission color, the second sub-pixel and the fifth sub-pixel have the same emission color, and the third sub-pixel and the sixth sub-pixel have the same emission color.

[0032] Optionally, in the unstretched state of the display panel, the orthographic projection of the third sub-pixel of one of two adjacent first pixel groups along the second direction overlaps with the orthographic projection of the first sub-pixel of the other group on the projection surface, and the projection surface is perpendicular to the spacing direction of the multiple second leads.

[0033] Optionally, in the unstretched state of the display panel, the orthographic projection of the sixth sub-pixel of one of two adjacent second pixel groups along the second direction overlaps with the orthographic projection of the fourth sub-pixel of the other on the projection surface, and the projection surface is perpendicular to the spacing direction of the multiple second leads.

[0034] In some embodiments, when the display panel is not stretched, the second lead is curved and includes multiple sequentially connected second arc segments. Along the spacing direction of the multiple second leads, the arc centers of two adjacent second arc segments are located on different sides of the second lead.

[0035] In this way, the display panel can deform not only along the extension direction of the first lead but also along the extension direction of the second lead, allowing for uniform deformation during the stretching process. Furthermore, the consistent stretching ratio on both sides of the second lead in the intervals between the multiple second leads improves stretching stability.

[0036] Optionally, the ratio of the arc length to the chord length of the second arc segment is K2, where 1 < K2 ≤ 1.6.

[0037] Optionally, the display panel includes a plurality of pixel groups arranged along a first lead, the pixel groups are arranged along a first arc segment, and the pixel groups include a plurality of sub-pixels. In the unstretched state, at least one sub-pixel in the pixel group is not lit, and in the stretched state, each sub-pixel in the pixel group is lit.

[0038] Optionally, the multiple sub-pixels in the pixel group include a first sub-pixel, a second sub-pixel, and a third sub-pixel. The first sub-pixel, the second sub-pixel, and the third sub-pixel emit different colors and are arranged alternately along a first direction. The second sub-pixel is located on the side of the first arc segment facing the center of the arc, while the first sub-pixel and the third sub-pixel are located on the side of the first arc segment away from the center of the arc.

[0039] Optionally, along the first direction, the distance between the first sub-pixel and the second sub-pixel is equal to the distance between the second sub-pixel and the third sub-pixel.

[0040] Optionally, the display panel includes a first pixel group and a second pixel group. The first pixel group is arranged along a first arc segment of one of two adjacent first leads, and the second pixel group is arranged along a first arc segment of the other of two adjacent first leads. The first pixel group includes multiple sub-pixels, and the second pixel group includes multiple sub-pixels. The multiple sub-pixels in the first pixel group include a first sub-pixel, a second sub-pixel, and a third sub-pixel. The first, second, and third sub-pixels in the first pixel group emit different colors and are arranged alternately along a first direction. The multiple sub-pixels in the second pixel group include a fourth sub-pixel, a fifth sub-pixel, and a sixth sub-pixel. The fourth, fifth, and sixth sub-pixels in the second pixel group emit different colors and are arranged alternately along a first direction. The first sub-pixel in the first pixel group... The orthographic projection on the projection surface overlaps with the orthographic projection of the fourth sub-pixel in the second pixel group on the projection surface; the orthographic projection of the second sub-pixel in the first pixel group on the projection surface overlaps with the orthographic projection of the fifth sub-pixel in the second pixel group on the projection surface; the orthographic projection of the third sub-pixel in the first pixel group on the projection surface overlaps with the orthographic projection of the sixth sub-pixel in the second pixel group on the projection surface; the projection surface is perpendicular to the spacing direction of the multiple first leads; wherein, the first sub-pixel and the fourth sub-pixel have the same emission color, the second sub-pixel and the fifth sub-pixel have the same emission color, and the third sub-pixel and the sixth sub-pixel have the same emission color; or, the first sub-pixel and the sixth sub-pixel have the same emission color, the second sub-pixel and the fifth sub-pixel have the same emission color, and the third sub-pixel and the fourth sub-pixel have the same emission color.

[0041] In some implementations, the second lead is straight when the display panel is not stretched. This allows the display panel to be stretched in a single direction (the spacing direction of the plurality of first leads).

[0042] Optionally, any two second leads may be parallel to each other.

[0043] Optionally, the display panel includes a plurality of pixel groups arranged along a first lead, the pixel groups are arranged along a first arc segment, and the pixel groups include a plurality of sub-pixels. In the unstretched state, at least one sub-pixel in the pixel group is not lit, and in the stretched state, each sub-pixel in the pixel group is lit.

[0044] Optionally, the multiple sub-pixels in the pixel group include a first sub-pixel, a second sub-pixel, and a third sub-pixel. The first sub-pixel, the second sub-pixel, and the third sub-pixel emit different colors and are arranged sequentially at intervals along a first direction. The second sub-pixel is located on the side of the first arc segment facing the center of the arc, while the first sub-pixel and the third sub-pixel are located on the side of the first arc segment away from the center of the arc. Alternatively, the first sub-pixel, the second sub-pixel, and the third sub-pixel are all located on the side of the first arc segment away from the center of the arc.

[0045] Optionally, when the display panel is not stretched, the orthographic projection of the first sub-pixel on the surface of the display panel overlaps with the orthographic projection of one of the two adjacent second leads on the surface of the display panel, and the orthographic projection of the third sub-pixel on the surface of the display panel overlaps with the orthographic projection of the other of the two adjacent second leads on the surface of the display panel.

[0046] Optionally, along the first direction, the distance between the first sub-pixel and the second sub-pixel is equal to the distance between the second sub-pixel and the third sub-pixel.

[0047] Optionally, the display panel includes a first pixel group and a second pixel group. The first pixel group is arranged along a first arc segment of one of two adjacent first leads, and the second pixel group is arranged along a first arc segment of the other of two adjacent first leads. The first pixel group includes multiple sub-pixels, and the second pixel group includes multiple sub-pixels. The multiple sub-pixels in the first pixel group include a first sub-pixel, a second sub-pixel, and a third sub-pixel. The first, second, and third sub-pixels in the first pixel group emit different colors and are arranged alternately along a first direction. The multiple sub-pixels in the second pixel group include a fourth sub-pixel, a fifth sub-pixel, and a sixth sub-pixel. The fourth, fifth, and sixth sub-pixels in the second pixel group emit different colors and are arranged alternately along a first direction. The first sub-pixel in the first pixel group... The orthographic projection on the projection surface overlaps with the orthographic projection of the fourth sub-pixel in the second pixel group on the projection surface; the orthographic projection of the second sub-pixel in the first pixel group on the projection surface overlaps with the orthographic projection of the fifth sub-pixel in the second pixel group on the projection surface; the orthographic projection of the third sub-pixel in the first pixel group on the projection surface overlaps with the orthographic projection of the sixth sub-pixel in the second pixel group on the projection surface; the projection surface is perpendicular to the spacing direction of the multiple first leads; wherein, the first sub-pixel and the fourth sub-pixel have the same emission color, the second sub-pixel and the fifth sub-pixel have the same emission color, and the third sub-pixel and the sixth sub-pixel have the same emission color; or, the first sub-pixel and the sixth sub-pixel have the same emission color, the second sub-pixel and the fifth sub-pixel have the same emission color, and the third sub-pixel and the fourth sub-pixel have the same emission color.

[0048] Optionally, in the unstretched state of the display panel, the orthographic projection of the third sub-pixel of one of two adjacent first pixel groups on the projection surface overlaps with the orthographic projection of the first sub-pixel of the other on the projection surface, and the projection surface is perpendicular to the spacing direction of the multiple first leads.

[0049] Optionally, in the unstretched state of the display panel, the orthographic projection of the sixth sub-pixel of one of two adjacent second pixel groups along the first direction overlaps with the orthographic projection of the fourth sub-pixel of the other on the projection surface, and the projection surface is perpendicular to the spacing direction of the multiple first leads.

[0050] Optionally, in the unstretched state, every three adjacent first leads and two adjacent second leads of the display panel are connected to form a first closed area and a second closed area with different areas. In this way, the display panel provided in this embodiment can have different structural forms and can be stretched in one direction.

[0051] In some implementations, every two adjacent first leads are connected to two adjacent second leads to form a closed region, and the areas of any two closed regions are equal. This allows the display panel to deform uniformly during stretching and improves the uniformity of stress distribution.

[0052] Optionally, in the unstretched state of the display panel, the first lead is curved and includes multiple sequentially connected first arc segments; the second lead is curved and includes multiple sequentially connected second arc segments; wherein, the arc centers of the first arc segments of two adjacent first leads forming a closed area are located within the closed area, and the arc centers of the second arc segments of two adjacent second leads forming a closed area are located outside the closed area; or, the arc centers of the first arc segments of two adjacent first leads forming a closed area are located outside the closed area, and the arc centers of the second arc segments of two adjacent second leads forming a closed area are located within the closed area.

[0053] In some embodiments, the display panel provided in this application includes a plurality of repeating pixel units and a plurality of pixel groups arranged along a first lead. The pixel groups are arranged along a first arc segment and include a plurality of sub-pixels. Each pixel unit includes four first arc segments. Two of the first arc segments in the pixel unit are located on one side of the other two first arc segments in a first direction. Two of the first arc segments in the pixel unit are arranged along a second direction, and the other two first arc segments in the pixel unit are also arranged along a second direction. The two pixel groups corresponding to the two first arc segments arranged along the second direction are axially symmetrical, and the axis of symmetry extends along the first direction. Alternatively, the two pixel groups corresponding to the two first arc segments arranged along the second direction are centrally symmetrical. Or, the two pixel groups corresponding to the two first arc segments arranged along the second direction are arranged in the same way.

[0054] In this way, the pixel group of the display panel provided in this application is easy to design and layout, and the display panel is easy to manufacture.

[0055] Optionally, a pixel unit includes four matrix-distributed sub-units, each sub-unit comprising a pixel group, and the size of the region where the sub-unit is located along the first direction and the second direction is equal to the chord length of the first arc segment.

[0056] Optionally, the size of the region where the pixel unit is located along the first direction and the second direction is equal to twice the chord length of the first arc segment.

[0057] Secondly, this application also provides a display device, including the display panel of any of the above embodiments. The display device provided by this application has the same or similar technical effects as the above-described display panel, and will not be described in detail here. Attached Figure Description

[0058] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0059] Figure 1 This is a schematic diagram of the structure of the display panel provided in an embodiment of this application;

[0060] Figure 2 for Figure 1 One of the magnified views of a section at point A in the middle;

[0061] Figure 3 for Figure 1 Second magnified view of a section at point A in the middle;

[0062] Figure 4 for Figure 1 The third magnified view of a section at point A;

[0063] Figure 5 for Figure 1 Part 4 of the enlarged view of point A in the middle;

[0064] Figure 6 for Figure 1 Fifth magnified view of a section at point A in the middle;

[0065] Figure 7 for Figure 1 The sixth magnified view of a section at point A;

[0066] Figure 8 for Figure 1 Partial magnified view of point A in the middle, number seven;

[0067] Figure 9 for Figure 6 One of the magnified views of a section at point C;

[0068] Figure 10 for Figure 7 One of the magnified views of a section at point D;

[0069] Figure 11 for Figure 8 One of the magnified views of a section at point E in the middle;

[0070] Figure 12 for Figure 6 Second magnified view of a section at point C;

[0071] Figure 13 for Figure 7 Second magnified view of a section at point D;

[0072] Figure 14 for Figure 8 Second magnified view of a section at point E in the middle;

[0073] Figure 15 for Figure 6 The third magnified view of the central point C;

[0074] Figure 16 for Figure 7 The third magnified view of a section at point D;

[0075] Figure 17 for Figure 8 The third magnified view of a section at point E;

[0076] Figure 18 for Figure 6 Part 4 of the enlarged view at point C;

[0077] Figure 19 for Figure 7 Part 4 of the enlarged view at point D;

[0078] Figure 20 for Figure 8 Partial magnified view of point E in the middle, part four;

[0079] Figure 21 for Figure 6 Fifth magnified view of a section at point C;

[0080] Figure 22 for Figure 7 Fifth magnified view of a section at point D;

[0081] Figure 23 for Figure 8 Fifth magnified view of a section at point E in the middle;

[0082] Figure 24 for Figure 6 The sixth magnified view of the central point C;

[0083] Figure 25 for Figure 7 The sixth magnified view of a section at point D;

[0084] Figure 26 for Figure 8 The sixth magnified view of a section at point E;

[0085] Figure 27 for Figure 6Part 7 of the enlarged view at point C;

[0086] Figure 28 for Figure 7 Part 7 of the enlarged view at point D;

[0087] Figure 29 for Figure 8 The seventh magnified view of a section at point E in the middle;

[0088] Figure 30 This is a schematic diagram of the mask structure;

[0089] Figure 31 This is one of the schematic diagrams illustrating the application of photomasks;

[0090] Figure 32 This is the second illustration of the application of photomasks;

[0091] Figure 33 This is the third illustration of the application of photomasks.

[0092] The following are the labeling elements in the figure:

[0093] 100 - Display panel; 1 - Display unit; 2 - Stretched trace; 10 - Sub-pixel; 11 - First sub-pixel; 12 - Second sub-pixel; 13 - Third sub-pixel; 14 - Fourth sub-pixel; 15 - Fifth sub-pixel; 16 - Sixth sub-pixel; 20 - First lead; 21 - First arc segment; 30 - Second lead; 31 - Second arc segment;

[0094] 40 - Pixel group; 41 - First pixel group; 42 - Second pixel group; 43 - First arranged pixel group; 44 - Second arranged pixel group; 45 - First sub-pixel group; 46 - Second sub-pixel group; 47 - Third sub-pixel group; 50 - Closed region; 51 - First closed region; 52 - Second closed region; 60 - Pixel unit; 61 - Sub-unit; 200 - Mask; 201 - Mask opening. Detailed Implementation

[0095] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0096] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0097] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0098] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0099] Please refer to the following: Figure 1 This application provides a display panel 100, which can be an organic light-emitting diode (OLED) display panel 100 or a micro light-emitting diode (Micro LED / μLED) display panel 100.

[0100] The display panel 100 includes a display area AA and a non-display area NA, with the non-display area NA surrounding at least a portion of the display area AA. The display panel 100 includes a plurality of sub-pixels 10 located in the display area AA. The plurality of sub-pixels 10 may include a first sub-pixel 11, a second sub-pixel 12, and a third sub-pixel 13, which may emit different colors of light. For example, the first sub-pixel 11 may emit red light, the second sub-pixel 12 may emit green light, and the third sub-pixel 13 may emit blue light.

[0101] As flexible display panels 100 become increasingly sophisticated, their display forms are also diversifying. Curved and foldable display panels 100 have emerged, improving the performance of display devices using these panels. The inventors have discovered that stretchable display panels 100 may represent a new direction for the development of display panels 100. For example, please refer to... Figure 2 and Figure 3 , Figure 2 The display panel 100 shown can be stretched to form Figure 3 The increase in the spacing between adjacent display units 1 in the display panel 100 shown can increase the area of ​​the display panel 100, but may reduce the pixel density (PPI).

[0102] For related technologies, please refer to Figure 4 and Figure 5 Rigid pixel islands serve as display units 1, and adjacent display units 1 are connected by stretch traces 2. Figure 4 The stretched trace 2 in the display panel 100 shown is in a bent state. Figure 5 The stretched trace 2 in the display panel 100 shown is in a stretched state. Figure 4 The display panel 100 shown can be stretched to form Figure 5 The display panel 100 shown has an increased spacing between adjacent display units 1, which can increase the area of ​​the display panel 100, but will reduce the pixel density (PPI).

[0103] Please refer to the following: Figure 6 , Figure 7 and Figure 8 To solve the above-mentioned technical problems, the display panel 100 provided in this application embodiment includes a stretched state and an unstretched state. The display panel 100 includes a plurality of sub-pixels 10 and a plurality of leads. In the unstretched state, the plurality of sub-pixels 10 have a first arrangement along the leads 20, and at least some of the leads are curved. In the stretched state, the plurality of sub-pixels 10 have a second arrangement along the leads, and in the unstretched state, the curved leads are straight lines.

[0104] in, Figure 6 The display panel 100 shown is in an unstretched state. Figure 7 The display panel 100 shown is in the process of being stretched. Figure 8 The display panel 100 shown is in a stretched state.

[0105] Understandably, a lit sub-pixel 10 can emit light when powered, while a non-lit sub-pixel 10 cannot emit light when powered. Figure 6 and Figure 7 The sub-pixel 10 shown by the dashed line is not lit, while the sub-pixel 10 shown by the solid line is lit. Figure 8 The solid line in the middle indicates that sub-pixel 10 is lit.

[0106] Through the above technical solution, the display panel 100 provided in this application embodiment is stretchable and can switch between a stretched state and an unstretched state, and can be used for a stretchable display panel 100. Furthermore, when the display panel 100 provided in this application embodiment switches from an unstretched state to a stretched state, the curved leads in the unstretched state are stretched into straight lines. During the stretching process, the leads are not yet in a straightened state, and the stress on the leads is relatively small, which is beneficial to improving the reliability of the sub-pixel 10 display panel 100, thereby improving the performance of the display device.

[0107] Therefore, the display panel 100 provided in this application embodiment can improve the performance of the display device.

[0108] Please continue reading. Figure 6 , Figure 7 and Figure 8 In some embodiments, when the display panel 100 provided in this application is not stretched, some sub-pixels 10 are lit up, and the number of lit sub-pixels 10 is n; when the display panel 100 is stretched, at least some sub-pixels 10 are lit up, and the number of lit sub-pixels 10 is m, where m > n.

[0109] In this way, after the display panel 100 provided in this application embodiment switches from an unstretched state to a stretched state, the number of lit sub-pixels 10 increases, which is beneficial to improving the display effect.

[0110] Optionally, in the unstretched state, the number of sub-pixels 10 lit per unit area of ​​the display panel 100 is p; in the stretched state, the number of sub-pixels 10 lit per unit area is q, where q ≥ p.

[0111] In this way, after the display panel 100 provided in this application embodiment switches from an unstretched state to a stretched state, the number of lit sub-pixels 10 per unit area (pixel density) remains unchanged or increases, which is beneficial to improving the display effect.

[0112] Optionally, at least one lead corresponds to a sub-pixel 10 that is not lit when the display panel 100 is in an unstretched state, but is lit when the display panel 100 is in a stretched state. This increases the number of lit sub-pixels 10 after the display panel 100 switches from an unstretched state to a stretched state, thus improving the display effect.

[0113] For example, the display panel 100 provided in this application embodiment includes a plurality of first pixel groups 43 and a plurality of second pixel groups 44. The first pixel groups 43 include a plurality of sub-pixels 10 arranged along leads, and the second pixel groups 44 include a plurality of sub-pixels 10 arranged along leads. In the unstretched state, some sub-pixels 10 in the first pixel groups 43 are not lit, and all sub-pixels 10 in the second pixel groups 44 are not lit. In the stretched state, all sub-pixels 10 in the first pixel groups 43 and all sub-pixels 10 in the second pixel groups 44 are lit.

[0114] In some embodiments, please refer to the following: Figure 9 , Figure 10 and Figure 11The lead includes a first lead 20 and a second lead 30. The first lead 20 extends along a first direction, and multiple first leads 20 are spaced apart along a direction perpendicular to the first direction. The second lead 30 extends along a second direction, and multiple second leads 30 are spaced apart along a direction perpendicular to the second direction. The first lead 20 intersects with the multiple second leads 30 respectively, and the second lead 30 intersects with the multiple first leads 20 respectively. The first direction intersects with the second direction.

[0115] The first direction can be Figure 9 The X direction shown can be the second direction. Figure 9 Y direction shown in .

[0116] In this way, the second lead 30 can intersect with multiple first leads 20 respectively, and the first leads 20 can intersect with multiple second leads 30 respectively, which is beneficial to improving the tensile stability of the first leads 20 and the second leads 30.

[0117] Optionally, the first direction is perpendicular to the second direction, and multiple first leads 20 are spaced apart along the second direction, while multiple second leads 30 are spaced apart along the first direction. This makes the display panel provided in this application easy to stretch.

[0118] Please refer to the following: Figure 9 , Figure 10 and Figure 11 In some embodiments, multiple sub-pixels 10 are arranged along the first lead 20. When the display panel 100 is not stretched, the first lead 20 is curved, and the first lead 20 includes multiple sequentially connected first arc segments 21. Along the spacing direction of the multiple first leads 20, the arc centers of two adjacent first arc segments 21 are located on different sides of the first lead 20 (adjacent two first arc segments 21 are connected to form an S-shaped curve). In this way, the stretching ratio of the first lead 20 on both sides in the spacing direction (second direction) of the multiple first leads is consistent, which is beneficial to improving stretching stability.

[0119] Optionally, the ratio of the arc length to the chord length of the first arc segment 21 is K1, where 1 < K1 ≤ 1.6.

[0120] Optionally, 1 < K1 ≤ 1.3. Optionally, 1.3 < K1 ≤ 1.6. Optionally, the value of K1 can be 1.1, 1.15, 1.2, 1.25, 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.6, etc.

[0121] Wherein, the chord length of the first arc segment 21 is the length of the line segment connecting the two endpoints of the first arc segment 21.

[0122] Optionally, please refer to the following as well. Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 22 and Figure 23 Each pair of adjacent first leads 20 is axially symmetrically distributed, and the axis of symmetry extends along the first direction. This helps to reduce the spacing between corresponding sub-pixels 10 in two adjacent first leads 20, making it easier to prepare these sub-pixels 10.

[0123] Optionally, please refer to the following as well. Figure 24 , Figure 25 , Figure 26 , Figure 27 , Figure 28 and Figure 29 Any two first leads 20 have the same shape. This helps to improve the uniformity of the arrangement of sub-pixels 10 in the display panel 100.

[0124] In other embodiments, please refer to [the relevant documentation]. Figure 12 , Figure 13 and Figure 14 The difference from the above embodiment is that multiple sub-pixels 10 are arranged along the second lead 30. When the display panel 100 is not stretched, the second lead 30 is curved. The first lead 20 includes multiple second arc segments 31 connected in sequence. Along the spacing direction (first direction) of multiple second leads 30, the arc centers of two adjacent second arc segments 31 are located on different sides of the second lead 30.

[0125] In this way, the display panel 100 can deform along the extension direction of the second lead 30 in addition to deforming along the extension direction of the first lead 20, and the display panel 100 can deform uniformly during the stretching process. In addition, the stretching ratio of the second lead 30 on both sides in the interval direction (first direction) of the multiple second leads 30 is consistent, which helps to improve the stretching stability.

[0126] Optionally, the ratio of the arc length to the chord length of the second arc segment 31 is K2, where 1 < K2 ≤ 1.6.

[0127] Optionally, 1 < K2 ≤ 1.3. Optionally, 1.3 < K2 ≤ 1.6. Optionally, the value of K2 can be 1.1, 1.15, 1.2, 1.25, 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.6, etc.

[0128] The chord length of the second arc segment 31 is the length of the line segment connecting the two endpoints of the second arc segment 31.

[0129] Optionally, in the unstretched state, every two adjacent second leads 30 of the display panel 100 are axially symmetrically distributed, with the axis of symmetry extending along a second direction. This facilitates uniform stretching.

[0130] Please refer to some examples as well. Figure 12 , Figure 13 and Figure 14 Each pair of adjacent first leads 20 and two adjacent second leads 30 are connected to form a closed area 50, and any two closed areas 50 have the same area. In this way, the display panel 100 can deform evenly during the stretching process, which helps to improve the uniformity of stress distribution.

[0131] Optionally, in the unstretched state, the first lead 20 of the display panel 100 is curved, and the first lead 20 includes multiple sequentially connected first arc segments 21. Along the spacing direction of the multiple first leads 20, the arc centers of two adjacent first arc segments 21 are located on different sides of the first lead 20 (two adjacent first arc segments 21 are connected to form an S-shaped curve). In this way, the stretching ratio of the first lead 20 on both sides in the spacing direction (second direction) of the multiple first leads is consistent, which helps to improve stretching stability.

[0132] Optionally, the ratio of the arc length to the chord length of the first arc segment 21 is K1, where 1 < K1 ≤ 1.6.

[0133] Optionally, 1 < K1 ≤ 1.3. Optionally, 1.3 < K1 ≤ 1.6. Optionally, the value of K1 can be 1.1, 1.15, 1.2, 1.25, 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.6, etc.

[0134] Wherein, the chord length of the first arc segment 21 is the length of the line segment connecting the two endpoints of the first arc segment 21.

[0135] Optionally, in the unstretched state, the display panel 100 has every two adjacent first leads 20 arranged symmetrically, with the axis of symmetry extending along a first direction. This facilitates uniform stretching.

[0136] Optionally, the display panel includes a plurality of pixel groups 40 arranged along the second lead 30 and along the second arc segment 31. Each pixel group 40 includes a plurality of sub-pixels 10. In the unstretched state, at least one sub-pixel 10 in the pixel group 40 is not lit. In the stretched state, each sub-pixel 10 in the pixel group 40 is lit. This improves the display effect of the display panel 100.

[0137] Optionally, the plurality of sub-pixels 10 in the pixel group 40 include a first sub-pixel 11, a second sub-pixel 12 and a third sub-pixel 13, wherein the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 emit different colors and are arranged sequentially at intervals along the second direction; wherein the second sub-pixel 12 is located on the side of the second arc segment 31 facing the center of the arc, and the first sub-pixel 11 and the third sub-pixel 13 are located on the side of the second arc segment 31 away from the center of the arc.

[0138] In this way, the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 of the same pixel group 40 can be arranged in a triangular shape after stretching, which helps to improve the uniformity of the distribution of sub-pixels 10, thereby helping the display panel 100 to emit light uniformly.

[0139] Optionally, along the second direction, the distance between the first sub-pixel 11 and the second sub-pixel 12 is equal to the distance between the second sub-pixel 12 and the third sub-pixel 13. In this way, the second sub-pixel 12 is centered, which is beneficial for the display panel 100 to emit light uniformly.

[0140] Optionally, the display panel 100 provided in this application embodiment includes a first pixel group 41 and a second pixel group 42. The first pixel group 41 is arranged along a first arc segment 21 of one of the two adjacent first leads 20, and the second pixel group 42 is arranged along a first arc segment 21 of the other of the two adjacent first leads 20.

[0141] The first pixel group 41 includes multiple sub-pixels 10, and the second pixel group 42 includes multiple sub-pixels 10. The multiple sub-pixels 10 in the first pixel group 41 include a first sub-pixel 11, a second sub-pixel 12, and a third sub-pixel 13. The first sub-pixels 11, 12, and 13 in the first pixel group 41 emit different colors and are arranged alternately along a first direction. The multiple sub-pixels 10 in the second pixel group 42 include a fourth sub-pixel 14, a fifth sub-pixel 15, and a sixth sub-pixel 16. The fourth sub-pixels 14, 15, and 16 in the second pixel group 42 emit different colors and are arranged alternately along a first direction.

[0142] Optionally, the orthographic projection of the first sub-pixel 11 in the first pixel group 41 onto the projection surface overlaps with the orthographic projection of the fourth sub-pixel 14 in the second pixel group 42 onto the projection surface; the orthographic projection of the second sub-pixel 12 in the first pixel group 41 onto the projection surface overlaps with the orthographic projection of the fifth sub-pixel 15 in the second pixel group 42 onto the projection surface; and the orthographic projection of the third sub-pixel 13 in the first pixel group 41 onto the projection surface overlaps with the orthographic projection of the sixth sub-pixel 16 in the second pixel group 42 onto the projection surface. The projection surface is perpendicular to the spacing direction (first direction) of the plurality of second leads 30. Among them, the first sub-pixel 11 and the fourth sub-pixel 14 have the same emission color, the second sub-pixel 12 and the fifth sub-pixel 15 have the same emission color, and the third sub-pixel 13 and the sixth sub-pixel 16 have the same emission color.

[0143] Optionally, in the unstretched state, the orthographic projection of the third sub-pixel 13 of one of two adjacent first pixel groups 41 along the second direction onto the projection surface overlaps with the orthographic projection of the first sub-pixel 11 of the other, and the projection surface is perpendicular to the spacing direction (first direction) of the plurality of second leads 30. This facilitates the uniform arrangement of the plurality of sub-pixels 10 of the first pixel group 41 in the display panel 100.

[0144] Optionally, in the unstretched state, the orthographic projection of the sixth sub-pixel 16 of one of two adjacent second pixel groups 42 along the second direction onto the projection surface overlaps with the orthographic projection of the fourth sub-pixel 14 of the other, with the projection surface perpendicular to the spacing direction (first direction) of the multiple second leads 30. This facilitates the uniform arrangement of the multiple sub-pixels 10 of the second pixel group 42 in the display panel 100.

[0145] In some embodiments, and in some examples, please refer to [the relevant documentation / reference]. Figure 9 , Figure 10 , Figure 11 , Figure 15 , Figure 16 and Figure 17 When the display panel 100 is not stretched, the first lead 20 is curved, and the second lead 30 is also curved. The second lead 30 includes multiple second arc segments 31 connected in sequence. Along the interval direction of the multiple second leads 30, the arc centers of two adjacent second arc segments 31 are located on different sides of the second lead 30 (two adjacent first arc segments 21 are connected to form an S-shaped curve).

[0146] In this way, the display panel 100 can deform along the extension direction of the second lead 30 in addition to deforming along the extension direction of the first lead 20, and the display panel 100 can deform uniformly during the stretching process. In addition, the stretching ratio of the second lead 30 on both sides in the interval direction (first direction) of the multiple second leads 30 is consistent, which helps to improve the stretching stability.

[0147] Optionally, the ratio of the arc length to the chord length of the second arc segment 31 is K2, where 1 < K2 ≤ 1.6.

[0148] Optionally, 1 < K2 ≤ 1.3. Optionally, 1.3 < K2 ≤ 1.6. Optionally, the value of K2 can be 1.1, 1.15, 1.2, 1.25, 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.6, etc.

[0149] The chord length of the second arc segment 31 is the length of the line segment connecting the two endpoints of the second arc segment 31.

[0150] Optionally, the display panel includes a plurality of pixel groups 40 arranged along the first lead 20, and the pixel groups 40 are arranged along the first arc segment 21. Each pixel group 40 includes a plurality of sub-pixels 10. In the unstretched state, at least one sub-pixel 10 in the pixel group 40 is not lit. In the stretched state, each sub-pixel 10 in the pixel group 40 is lit. This helps to improve the display effect of the display panel 100.

[0151] Optionally, the plurality of sub-pixels 10 in the pixel group 40 include a first sub-pixel 11, a second sub-pixel 12 and a third sub-pixel 13, wherein the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 emit different colors and are arranged sequentially at intervals along a first direction; wherein, the second sub-pixel 12 is located on the side of the first arc segment 21 facing the center of the arc, and the first sub-pixel 11 and the third sub-pixel 13 are located on the side of the first arc segment 21 away from the center of the arc.

[0152] In this way, the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 of the same pixel group 40 can be arranged in a triangular shape after stretching, which helps to improve the uniformity of the distribution of sub-pixels 10, thereby helping the display panel 100 to emit light uniformly.

[0153] Optionally, along the first direction, the distance between the first sub-pixel 11 and the second sub-pixel 12 is equal to the distance between the second sub-pixel 12 and the third sub-pixel 13. That is, the second sub-pixel 12 is centered, which is beneficial for the display panel 100 to emit light uniformly.

[0154] Optionally, the display panel 100 provided in this application includes a first pixel group 41 and a second pixel group 42. The first pixel group 41 is arranged along a first arc segment 21 of one of the two adjacent first leads 20, and the second pixel group 42 is arranged along a first arc segment 21 of the other of the two adjacent first leads 20.

[0155] The first pixel group 41 includes multiple sub-pixels 10, and the second pixel group 42 includes multiple sub-pixels 10. The multiple sub-pixels in the first pixel group include a first sub-pixel, a second sub-pixel, and a third sub-pixel. The first sub-pixel, the second sub-pixel, and the third sub-pixel in the first pixel group emit different colors and are arranged alternately along the first direction. The multiple sub-pixels in the second pixel group include a fourth sub-pixel, a fifth sub-pixel, and a sixth sub-pixel. The fourth sub-pixel, the fifth sub-pixel, and the sixth sub-pixel in the second pixel group emit different colors and are arranged alternately along the first direction.

[0156] The orthographic projection of the first sub-pixel 11 in the first pixel group 41 onto the projection surface overlaps with the orthographic projection of the fourth sub-pixel 14 in the second pixel group 42 onto the projection surface. The orthographic projection of the second sub-pixel 12 in the first pixel group 41 onto the projection surface overlaps with the orthographic projection of the fifth sub-pixel 15 in the second pixel group 42 onto the projection surface. The orthographic projection of the third sub-pixel 13 in the first pixel group 41 onto the projection surface overlaps with the orthographic projection of the sixth sub-pixel 16 in the second pixel group 42 onto the projection surface. The projection surface is perpendicular to the spacing direction (first direction) of the multiple first leads 20.

[0157] Optionally, please refer to Figure 9 , Figure 10 and Figure 11 The first sub-pixel 11 and the fourth sub-pixel 14 emit the same color, the second sub-pixel 12 and the fifth sub-pixel 15 emit the same color, and the third sub-pixel 13 and the sixth sub-pixel 16 emit the same color.

[0158] Optionally, please refer to Figure 15 , Figure 16 and Figure 17 The first sub-pixel 11 and the sixth sub-pixel 16 emit the same color, the second sub-pixel 12 and the fifth sub-pixel 15 emit the same color, and the third sub-pixel 13 and the fourth sub-pixel 14 emit the same color.

[0159] Please refer to the following: Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 22 , Figure 23 , Figure 24 , Figure 25 , Figure 26 , Figure 27 , Figure 28 and Figure 29 In some embodiments, the second lead 30 is straight when the display panel 100 is not stretched. In this way, the display panel 100 can be stretched in one direction (the spacing direction of the plurality of first leads 20, i.e., the second direction).

[0160] Optionally, any two second leads may be parallel to each other.

[0161] The display panel 100 provided in this embodiment further includes a plurality of pixel groups 40 arranged along the first lead 20. The pixel groups 40 are arranged along the first arc segment 21. Each pixel group 40 includes a plurality of sub-pixels 10. In the unstretched state, at least one sub-pixel 10 in the pixel group 40 is not lit. In the stretched state, each sub-pixel 10 in the pixel group 40 is lit. This is beneficial for improving the display effect of the display panel 100.

[0162] Please refer to some examples as well. Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 22 , Figure 23 , Figure 24 , Figure 25 and Figure 26 The pixel group 40 includes multiple sub-pixels 10, including a first sub-pixel 11, a second sub-pixel 12, and a third sub-pixel 13. The first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 emit different colors and are arranged alternately along a first direction. The second sub-pixel 12 is located on the side of the first arc segment 21 facing the center of the arc, while the first sub-pixel 11 and the third sub-pixel 13 are located on the side of the first arc segment 21 away from the center of the arc.

[0163] In this way, the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 of the same pixel group 40 can be arranged in a triangular shape after stretching, which helps to improve the uniformity of the distribution of sub-pixels 10, thereby helping the display panel 100 to emit light uniformly.

[0164] Please refer to other examples as well. Figure 27 , Figure 28 and Figure 29 The first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 are all located on the side of the first arc segment 21 away from the center of the arc. In this way, in the extension direction of the first leader 20, the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 of the same pixel group 40 can be arranged along a straight line (e.g., the X direction), which helps to improve the color edge problem in the extension direction of the first leader 20.

[0165] Optionally, please refer to the following as well. Figure 18 , Figure 21, Figure 24 and Figure 27 When the display panel 100 is not stretched, the orthographic projection of the first sub-pixel 11 on the surface of the display panel 100 overlaps with the orthographic projection of one of the two adjacent second leads 20 on the surface of the display panel 100, and the orthographic projection of the third sub-pixel 13 on the surface of the display panel 100 overlaps with the orthographic projection of the other of the two adjacent second leads 20 on the surface of the display panel 100.

[0166] In this way, the first sub-pixel 11 and the third sub-pixel of the display panel 100 can be referenced by the second lead, which is convenient for design and processing, and helps to improve the uniformity of the distribution of sub-pixels 10, thereby helping the display panel 100 to emit light uniformly.

[0167] Alternatively, please continue reading Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 22 , Figure 23 , Figure 24 , Figure 25 , Figure 26 , Figure 27 , Figure 28 and Figure 29 Along the first direction, the distance between the first sub-pixel 11 and the second sub-pixel 12 is equal to the distance between the second sub-pixel 12 and the third sub-pixel 13. In this way, the second sub-pixel 12 is centered, which helps to improve the uniformity of the distribution of sub-pixels 10, thereby helping the display panel 100 to emit light uniformly.

[0168] In some embodiments, the display panel 100 provided in this application includes a first pixel group 41 and a second pixel group 42. The first pixel group 41 is arranged along a first arc segment 21 of one of two adjacent first leads 20, and the second pixel group 42 is arranged along a first arc segment 21 of the other of two adjacent first leads 20.

[0169] The first pixel group 41 includes multiple sub-pixels 10, and the second pixel group 42 includes multiple sub-pixels 10. The multiple sub-pixels 10 in the first pixel group 41 include a first sub-pixel 11, a second sub-pixel 12, and a third sub-pixel 13. The first sub-pixels 11, 12, and 13 in the first pixel group 41 emit different colors and are arranged alternately along a first direction. The multiple sub-pixels 10 in the second pixel group 42 include a fourth sub-pixel 14, a fifth sub-pixel 15, and a sixth sub-pixel 16. The fourth sub-pixels 14, 15, and 16 in the second pixel group 42 emit different colors and are arranged alternately along a first direction.

[0170] The orthographic projection of the first sub-pixel 11 in the first pixel group 41 onto the projection surface overlaps with the orthographic projection of the fourth sub-pixel 14 in the second pixel group 42 onto the projection surface. The orthographic projection of the second sub-pixel 12 in the first pixel group 41 onto the projection surface overlaps with the orthographic projection of the fifth sub-pixel 15 in the second pixel group 42 onto the projection surface. The orthographic projection of the third sub-pixel 13 in the first pixel group 41 onto the projection surface overlaps with the orthographic projection of the sixth sub-pixel 16 in the second pixel group 42 onto the projection surface. The projection surface is perpendicular to the spacing direction (first direction) of the multiple first leads 20.

[0171] In some examples, please refer to Figure 18 , Figure 19 , Figure 20 , Figure 24 , Figure 25 , Figure 26 , Figure 27 , Figure 28 and Figure 29 The first sub-pixel 11 and the fourth sub-pixel 14 emit the same color, the second sub-pixel 12 and the fifth sub-pixel 15 emit the same color, and the third sub-pixel 13 and the sixth sub-pixel 16 emit the same color.

[0172] In other examples, please refer to Figure 21 , Figure 22 , Figure 23 The first sub-pixel 11 and the sixth sub-pixel 16 emit the same color, the second sub-pixel 12 and the fifth sub-pixel 15 emit the same color, and the third sub-pixel 13 and the fourth sub-pixel 14 emit the same color.

[0173] It is understood that in this embodiment, the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 are arranged alternately along the extension direction of the first lead 20. The first sub-pixel 11 and the third sub-pixel 13 are arranged alternately along the extension direction of the second lead 30.

[0174] In this way, at least two types of sub-pixels 10 can be arranged alternately, which helps to improve the color edge problem of the display panel 100.

[0175] Optionally, in the unstretched state, the orthographic projection of the third sub-pixel 13 of one of two adjacent first pixel groups 41 along the first direction overlaps with the orthographic projection of the first sub-pixel 11 of the other on the projection surface, and the projection surface is perpendicular to the spacing direction (first direction) of the plurality of first leads 20. This facilitates the uniform arrangement of the plurality of sub-pixels 10 of the first pixel group 41 in the display panel 100.

[0176] Optionally, in the unstretched state, the orthographic projection of the sixth sub-pixel 16 of one of two adjacent second pixel groups 42 along the first direction onto the projection surface overlaps with the orthographic projection of the fourth sub-pixel 14 of the other, with the projection surface perpendicular to the spacing direction (first direction) of the multiple first leads 20. This facilitates the uniform arrangement of the multiple sub-pixels 10 of the second pixel group 42 in the display panel 100.

[0177] In some embodiments, please refer to the following: Figure 9 , Figure 10 , Figure 11 , Figure 15 , Figure 16 , Figure 17 , Figure 24 , Figure 25 , Figure 26 , Figure 27 , Figure 28 and Figure 29 Each pair of adjacent first leads 20 and two adjacent second leads 30 are connected to form a closed area 50, and any two closed areas 50 have the same area. In this way, the display panel 100 can deform evenly during the stretching process, which helps to improve the uniformity of stress distribution.

[0178] Optionally, please refer to the following as well. Figure 9 , Figure 10 , Figure 11 , Figure 15 , Figure 16 and Figure 17 When the display panel 100 is not stretched, the first lead 20 is curved and includes multiple sequentially connected first arc segments 21. The second lead 30 is also curved and includes multiple sequentially connected second arc segments 31.

[0179] In this configuration, the center of the arc of the first arc segment 21 of the two adjacent first lead wires 20 forming the closed region 50 is located inside the closed region 50, and the center of the arc of the second arc segment 31 of the two adjacent second lead wires 30 forming the closed region 50 is located outside the closed region 50. Alternatively, the center of the arc of the first arc segment 21 of the two adjacent first lead wires 20 forming the closed region 50 is located outside the closed region 50, and the center of the arc of the second arc segment 31 of the two adjacent second lead wires 30 forming the closed region 50 is located inside the closed region 50.

[0180] In some embodiments, please refer to the following: Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 22 , Figure 23In its unstretched state, the display panel 100 has three adjacent first leads 20 connected to two adjacent second leads 30 to form a first enclosed region 51 and a second enclosed region 52 with different areas. Thus, the display panel 100 provided in this embodiment can have different structural forms and can be stretched in one direction.

[0181] In some embodiments, please refer to the following: Figure 9 , Figure 10 , Figure 11 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 22 , Figure 23 , Figure 24 , Figure 25 , Figure 26 , Figure 27 , Figure 28 and Figure 29 The display panel 100 provided in this embodiment includes a plurality of repeating pixel units 60 and a plurality of pixel groups 40 arranged along a first lead 20. The pixel groups 40 are arranged along a first arc segment 21 and include a plurality of sub-pixels 10. Each pixel unit 60 includes four first arc segments 21. Two of the first arc segments 21 in the pixel unit 60 are located on one side of the other two first arc segments 21 in a first direction. Two of the first arc segments 21 in the pixel unit 60 are arranged along a second direction, and the other two first arc segments 21 in the pixel unit 60 are also arranged along the second direction.

[0182] Optionally, please refer to the following as well. Figure 9 , Figure 10 , Figure 11 , Figure 18 , Figure 19 and Figure 20 The two pixel groups 40 corresponding to the two first arc segments 21 arranged along the second direction are symmetrical, and the axis of symmetry extends along the first direction.

[0183] Optionally, please refer to the following as well. Figure 15 , Figure 16 , Figure 17 , Figure 21 , Figure 22 and Figure 23 The two pixel groups 40 corresponding to the two first arc segments 21 arranged along the second direction are centrally symmetrical.

[0184] Optionally, please refer to the following as well. Figure 24 , Figure 25 , Figure 26 , Figure 27, Figure 28 and Figure 29 The two pixel groups 40 corresponding to the two first arc segments 21 arranged along the second direction are arranged in the same way.

[0185] In this way, the pixel group 40 of the display panel 100 provided in this application is easy to design and layout, and easy to manufacture the display panel 100.

[0186] Optionally, the pixel unit 60 includes four matrix-distributed sub-units 61, each sub-unit 61 including a pixel group 40. The size of the area where the sub-unit 61 is located along the first direction and the second direction is equal to the chord length of the first arc segment 21. In this way, the display panel 100 of this embodiment can be fabricated according to the repeated arrangement of the pixel units 60 to prepare the pixel structure, which is convenient for fabrication.

[0187] Optionally, the size of the region where the pixel unit 60 is located along the first direction and the second direction is equal to twice the chord length of the first arc segment 21.

[0188] Please refer to the following: Figures 9 to 14 as well as Figures 17 to 19 In some embodiments, pixel group 40 includes a first pixel group 41 and a second pixel group 42, wherein the sub-pixel 10 in the first pixel group 41 has the same emission color as the corresponding sub-pixel 10 in the second pixel group 42.

[0189] Understandably, please refer to Figure 30 , Figure 31 , Figure 32 and Figure 33 The mask opening 201 of the mask 200 is an elongated hole, and one mask opening 201 can simultaneously prepare two sub-pixels 10 with the same emission color.

[0190] In this way, the sub-pixel 10 in the first pixel group 41 and the corresponding sub-pixel 10 in the second pixel group 42 with the same emission color can share the mask opening 201, which helps to improve the uniformity of the mask opening 201 and improve the stability of the mask 200.

[0191] For example, please see Figure 30 , Figure 31 , Figure 32 and Figure 33 Pixel group 40 includes a first sub-pixel group 45, a second sub-pixel group 46 and a third sub-pixel group 47. The first sub-pixel group 45 includes two first sub-pixels 11, the second sub-pixel group 46 includes two second sub-pixels 12, and the third sub-pixel group 47 includes two third sub-pixels 13.

[0192] A mask opening 201 of the mask 200 can simultaneously prepare a first sub-pixel group 45, a second sub-pixel group 46, or a third sub-pixel group 47.

[0193] In this process, after the mask 200 prepares the first sub-pixel group 45, the position can be adjusted to prepare the second sub-pixel group 46, and then the position can be adjusted again to prepare the third sub-pixel group 47.

[0194] Optionally, please refer to the following as well. Figures 9 to 29 The arrangement of sub-pixels 10, first leads 20, and second leads 30 in the display panel 100 provided in this application embodiment can be specifically set as needed.

[0195] It is understood that the arrangement of sub-pixels 10, first leads 20, and second leads 30 in the display panel 100 provided in this application embodiment is not limited to... Figures 9 to 29 The layout shown is as follows.

[0196] This application also provides a display device, including the display panel 100 of any of the above embodiments. The display device provided in this application has the same or similar technical effects as the display panel 100 described above, and will not be repeated here.

[0197] Optionally, the display device provided in the embodiments of this application can be a mobile phone, television, tablet computer, laptop computer, desktop computer, vehicle display terminal, wearable device, advertising display device, or other products.

[0198] The above are merely specific embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A display panel, characterized in that, The display panel includes a stretched state and an unstretched state. It includes multiple sub-pixels and multiple leads. In the unstretched state, the multiple sub-pixels have a first arrangement along the leads, and at least some of the leads are curved. In the stretched state, the multiple sub-pixels have a second arrangement along the leads, and the curved leads in the unstretched state become straight lines.

2. The display panel as described in claim 1, characterized in that, In the unstretched state, some of the sub-pixels of the display panel are lit up, and the number of lit sub-pixels is n; in the stretched state, at least some of the sub-pixels are lit up, and the number of lit sub-pixels is m, where m > n. Preferably, in the unstretched state, the number of sub-pixels lit up per unit area of ​​the display panel is p; in the stretched state, the number of sub-pixels lit up per unit area of ​​the display panel is q, where q ≥ p; Preferably, at least one of the lead lines corresponds to a sub-pixel that is not lit when the display panel is in an unstretched state, and is lit when the display panel is in a stretched state.

3. The display panel as described in claim 1, characterized in that, The lead includes a first lead and a second lead. The first lead extends along a first direction, and multiple first leads are spaced apart along a direction perpendicular to the first direction. The second lead extends along a second direction, and multiple second leads are spaced apart along a direction perpendicular to the second direction. The first lead intersects with multiple second leads respectively, and the second lead intersects with multiple first leads respectively. The first direction intersects with the second direction. Preferably, the first direction is perpendicular to the second direction, and multiple first leads are spaced apart along the second direction, while multiple second leads are spaced apart along the first direction.

4. The display panel as described in claim 3, characterized in that, Multiple sub-pixels are arranged along the first lead. When the display panel is not stretched, the first lead is curved. The first lead includes multiple first arc segments connected in sequence. Along the spacing direction of the multiple first leads, the arc centers of two adjacent first arc segments are located on different sides of the first lead. Preferably, the ratio of the arc length to the chord length of the first arc segment is K1, where 1 < K1 ≤ 1.6; Preferably, in the unstretched state, every two adjacent first leads of the display panel are symmetrically distributed, and the axis of symmetry extends along the first direction; or, any two first leads have the same shape.

5. The display panel as described in claim 3, characterized in that, Multiple sub-pixels are arranged along the second lead. When the display panel is not stretched, the second lead is curved. The first lead includes multiple second arc segments connected in sequence. Along the spacing direction of the multiple second leads, the arc centers of two adjacent second arc segments are located on different sides of the second lead. Preferably, the ratio of the arc length to the chord length of the second arc segment is K2, where 1 < K2 ≤ 1.6; Preferably, in the unstretched state, every two adjacent second leads of the display panel are axially symmetrically distributed, and the axis of symmetry extends along the second direction; Preferably, every two adjacent first leads are connected to two adjacent second leads to form a closed area, and the areas of any two closed areas are equal. Preferably, in the unstretched state, the first lead is curved, and the first lead includes a plurality of sequentially connected first arc segments. Along the spacing direction of the plurality of first leads, the arc centers of two adjacent first arc segments are located on different sides of the first lead. Preferably, the ratio of the arc length to the chord length of the first arc segment is K1, where 1 < K1 ≤ 1.6; Preferably, in the unstretched state, every two adjacent first leads of the display panel are axially symmetrically distributed, and the axis of symmetry extends along the first direction. Preferably, the display panel includes a plurality of pixel groups arranged along the second lead, the pixel groups are arranged along the second arc segment, the pixel groups include a plurality of sub-pixels, in the unstretched state of the display panel, at least one of the sub-pixels in the pixel group is not lit, and in the stretched state of the display panel, each of the sub-pixels in the pixel group is lit; Preferably, the plurality of sub-pixels in the pixel group include a first sub-pixel, a second sub-pixel, and a third sub-pixel. The first sub-pixel, the second sub-pixel, and the third sub-pixel emit different colors and are arranged alternately along the second direction. The second sub-pixel is located on the side of the second arc segment facing the center of the arc, and the first sub-pixel and the third sub-pixel are located on the side of the second arc segment away from the center of the arc. Preferably, along the second direction, the distance between the first sub-pixel and the second sub-pixel is equal to the distance between the second sub-pixel and the third sub-pixel; Preferably, the display panel includes a first pixel group and a second pixel group. The first pixel group is arranged along the second arc segment of one of two adjacent second leads, and the second pixel group is arranged along the second arc segment of the other of two adjacent second leads. The second pixel group includes a plurality of sub-pixels. The plurality of sub-pixels in the first pixel group includes a first sub-pixel, a second sub-pixel, and a third sub-pixel. The first sub-pixel, the second sub-pixel, and the third sub-pixel in the first pixel group emit different colors and are arranged alternately along the second direction. The plurality of sub-pixels in the second pixel group includes a fourth sub-pixel, a fifth sub-pixel, and a sixth sub-pixel. The fourth sub-pixel, the fifth sub-pixel, and the sixth sub-pixel in the second pixel group emit different colors. The pixels are arranged in different colors and spaced apart sequentially along the second direction; the orthographic projection of the first sub-pixel in the first pixel group on the projection surface overlaps with the orthographic projection of the fourth sub-pixel in the second pixel group on the projection surface, the orthographic projection of the second sub-pixel in the first pixel group on the projection surface overlaps with the orthographic projection of the fifth sub-pixel in the second pixel group on the projection surface, and the orthographic projection of the third sub-pixel in the first pixel group on the projection surface overlaps with the orthographic projection of the sixth sub-pixel in the second pixel group on the projection surface, and the projection surface is perpendicular to the spacing direction of the plurality of second leads; wherein, the first sub-pixel and the fourth sub-pixel have the same emission color, the second sub-pixel and the fifth sub-pixel have the same emission color, and the third sub-pixel and the sixth sub-pixel have the same emission color; Preferably, in the unstretched state, the orthographic projection of the third sub-pixel of one of two adjacent first pixel groups along the second direction on the projection surface overlaps with the orthographic projection of the first sub-pixel of the other group on the projection surface, and the projection surface is perpendicular to the spacing direction of the plurality of second leads; Preferably, in the unstretched state, the orthographic projection of the sixth sub-pixel of one of two adjacent second pixel groups along the second direction on the projection surface overlaps with the orthographic projection of the fourth sub-pixel of the other on the projection surface, and the projection surface is perpendicular to the spacing direction of the plurality of second leads.

6. The display panel as described in claim 4, characterized in that, When the display panel is not stretched, the second lead is curved and includes multiple sequentially connected second arc segments. Along the spacing direction of the multiple second leads, the arc centers of two adjacent second arc segments are located on different sides of the second lead. Preferably, the ratio of the arc length to the chord length of the second arc segment is K2, where 1 < K2 ≤ 1.6; Preferably, the display panel includes a plurality of pixel groups arranged along the first lead, the pixel groups are arranged along the first arc segment, the pixel groups include a plurality of sub-pixels, in the unstretched state of the display panel, at least one of the sub-pixels in the pixel group is not lit, and in the stretched state of the display panel, each of the sub-pixels in the pixel group is lit; Preferably, the plurality of sub-pixels in the pixel group include a first sub-pixel, a second sub-pixel, and a third sub-pixel, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel emit different colors and are arranged alternately along the first direction; wherein the second sub-pixel is located on the side of the first arc segment facing the center of the arc, and the first sub-pixel and the third sub-pixel are located on the side of the first arc segment away from the center of the arc; Preferably, along the first direction, the distance between the first sub-pixel and the second sub-pixel is equal to the distance between the second sub-pixel and the third sub-pixel; Preferably, the display panel includes a first pixel group and a second pixel group. The first pixel group is arranged along the first arc segment of one of two adjacent first leads, and the second pixel group is arranged along the first arc segment of the other of two adjacent first leads. The first pixel group includes a plurality of sub-pixels, and the second pixel group includes a plurality of sub-pixels. The plurality of sub-pixels in the first pixel group includes a first sub-pixel, a second sub-pixel, and a third sub-pixel. The first, second, and third sub-pixels in the first pixel group emit different colors and are sequentially spaced along the first direction. The plurality of sub-pixels in the second pixel group includes a fourth sub-pixel, a fifth sub-pixel, and a sixth sub-pixel. The fourth, fifth, and sixth sub-pixels in the second pixel group emit different colors and are sequentially spaced along the first direction. The orthographic projection of a sub-pixel on the projection surface overlaps with the orthographic projection of the fourth sub-pixel in the second pixel group on the projection surface; the orthographic projection of the second sub-pixel in the first pixel group on the projection surface overlaps with the orthographic projection of the fifth sub-pixel in the second pixel group on the projection surface; the orthographic projection of the third sub-pixel in the first pixel group on the projection surface overlaps with the orthographic projection of the sixth sub-pixel in the second pixel group on the projection surface; the projection surface is perpendicular to the spacing direction of the plurality of first leads; wherein, the first sub-pixel and the fourth sub-pixel have the same emission color, the second sub-pixel and the fifth sub-pixel have the same emission color, and the third sub-pixel and the sixth sub-pixel have the same emission color; or, the first sub-pixel and the sixth sub-pixel have the same emission color, the second sub-pixel and the fifth sub-pixel have the same emission color, and the third sub-pixel and the fourth sub-pixel have the same emission color.

7. The display panel as described in claim 4, characterized in that, When the display panel is not stretched, the second lead is a straight line; Preferably, any two of the second leads are parallel to each other; Preferably, the display panel includes a plurality of pixel groups arranged along the first lead, the pixel groups are arranged along the first arc segment, the pixel groups include a plurality of sub-pixels, in the unstretched state of the display panel, at least one of the sub-pixels in the pixel group is not lit, and in the stretched state of the display panel, each of the sub-pixels in the pixel group is lit; Preferably, the plurality of sub-pixels in the pixel group include a first sub-pixel, a second sub-pixel, and a third sub-pixel, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel emit different colors and are arranged alternately along the first direction; wherein, the second sub-pixel is located on the side of the first arc segment facing the center of the arc, and the first sub-pixel and the third sub-pixel are located on the side of the first arc segment away from the center of the arc; or, the first sub-pixel, the second sub-pixel, and the third sub-pixel are all located on the side of the first arc segment away from the center of the arc; Preferably, in the unstretched state of the display panel, the orthographic projection of the first sub-pixel on the surface of the display panel overlaps with the orthographic projection of one of the two adjacent second leads on the surface of the display panel, and the orthographic projection of the third sub-pixel on the surface of the display panel overlaps with the orthographic projection of the other of the two adjacent second leads on the surface of the display panel. Preferably, along the first direction, the distance between the first sub-pixel and the second sub-pixel is equal to the distance between the second sub-pixel and the third sub-pixel; Preferably, the display panel includes a first pixel group and a second pixel group. The first pixel group is arranged along the first arc segment of one of two adjacent first leads, and the second pixel group is arranged along the first arc segment of the other of two adjacent first leads. The first pixel group includes a plurality of sub-pixels, and the second pixel group includes a plurality of sub-pixels. The plurality of sub-pixels in the first pixel group includes a first sub-pixel, a second sub-pixel, and a third sub-pixel. The first, second, and third sub-pixels in the first pixel group emit different colors and are sequentially spaced along the first direction. The plurality of sub-pixels in the second pixel group includes a fourth sub-pixel, a fifth sub-pixel, and a sixth sub-pixel. The fourth, fifth, and sixth sub-pixels in the second pixel group emit different colors and are sequentially spaced along the first direction. The orthographic projection of a sub-pixel on the projection plane overlaps with the orthographic projection of the fourth sub-pixel in the second pixel group on the projection plane; the orthographic projection of the second sub-pixel in the first pixel group on the projection plane overlaps with the orthographic projection of the fifth sub-pixel in the second pixel group on the projection plane; the orthographic projection of the third sub-pixel in the first pixel group on the projection plane overlaps with the orthographic projection of the sixth sub-pixel in the second pixel group on the projection plane; the projection plane is perpendicular to the spacing direction of the plurality of first leads; wherein, the first sub-pixel and the fourth sub-pixel have the same emission color, the second sub-pixel and the fifth sub-pixel have the same emission color, and the third sub-pixel and the sixth sub-pixel have the same emission color; or, the first sub-pixel and the sixth sub-pixel have the same emission color, the second sub-pixel and the fifth sub-pixel have the same emission color, and the third sub-pixel and the fourth sub-pixel have the same emission color; Preferably, in the unstretched state, the orthographic projection of the third sub-pixel of one of two adjacent first pixel groups along the first direction on the projection surface overlaps with the orthographic projection of the first sub-pixel of the other group on the projection surface, and the projection surface is perpendicular to the spacing direction of the plurality of first leads; Preferably, in the unstretched state, the orthographic projection of the sixth sub-pixel of one of two adjacent second pixel groups along the first direction on the projection surface overlaps with the orthographic projection of the fourth sub-pixel of the other on the projection surface, and the projection surface is perpendicular to the spacing direction of the plurality of first leads; Preferably, in the unstretched state, every three adjacent first leads and two adjacent second leads of the display panel are connected to form a first closed area and a second closed area with different areas.

8. The display panel as described in any one of claims 3 to 7, characterized in that, Each pair of adjacent first leads and each pair of adjacent second leads are connected to form a closed area, and any two of the closed areas have the same area. Preferably, in the unstretched state, the first lead is curved and includes multiple sequentially connected first arc segments; the second lead is also curved and includes multiple sequentially connected second arc segments; wherein the centers of the arcs of the first arc segments of two adjacent first leads forming the closed area are located within the closed area, and the centers of the arcs of the second arc segments of two adjacent second leads forming the closed area are located outside the closed area; or, the centers of the arcs of the first arc segments of two adjacent first leads forming the closed area are located outside the closed area, and the centers of the arcs of the second arc segments of two adjacent second leads forming the closed area are located within the closed area.

9. The display panel as described in claim 4, characterized in that, The display panel includes multiple repeating pixel units and multiple pixel groups arranged along the first lead. The pixel groups are arranged along the first arc segment and include multiple sub-pixels. Each pixel unit includes four first arc segments. Two of the first arc segments in the pixel unit are located on one side of the other two first arc segments in the first direction. Two of the first arc segments in the pixel unit are arranged along the second direction, and the other two first arc segments in the pixel unit are also arranged along the second direction. The two pixel groups corresponding to the two first arc segments arranged along the second direction are axially symmetrical, and the axis of symmetry extends along the first direction. Alternatively, the two pixel groups corresponding to the two first arc segments arranged along the second direction are centrally symmetrical. Or, the two pixel groups corresponding to the two first arc segments arranged along the second direction have the same arrangement. Preferably, the pixel unit comprises four matrix-distributed sub-units, each sub-unit comprising a pixel group, and the size of the region where the sub-unit is located along the first direction and the second direction is equal to the chord length of the first arc segment; Preferably, the size of the region where the pixel unit is located along the first direction and the second direction is equal to twice the chord length of the first arc segment.

10. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 9.

Images