Display panel and display device

Abstract

This application relates to a display panel and a display device. The display panel includes a stretchable substrate and a plurality of light-emitting units. The plurality of light-emitting units include a plurality of main light-emitting units arranged in an array on the stretchable substrate, and a plurality of stretchable light-emitting units arranged at intervals on the stretchable substrate. The stretchable light-emitting units include first stretchable light-emitting units arranged alternately with the main light-emitting units along a first direction. The display panel has a first stretched state. When the stretchable substrate is stretched to the first stretched state along the first direction at a first stretch rate, at least some of the first stretchable light-emitting units are in a light-emitting state. The first stretchable light-emitting units in the first stretched state can compensate for the light-emitting state of the corresponding main light-emitting units in the unstretched state, thereby improving the display effect of the display panel in the first stretched state.

Description

Technical Field

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

[0002] With the development of flexible display technology, stretchable display panels have emerged and been applied, bringing users a new user experience. However, the display effect of traditional display panels is not good. Summary of the Invention

[0003] Therefore, it is necessary to provide a display panel and display device to address the problem of poor display performance of traditional display panels.

[0004] According to a first aspect of this application, a display panel is provided, comprising:

[0005] Stretchable substrate; and

[0006] Multiple light-emitting units, the multiple light-emitting units including multiple main light-emitting units arranged in an array on the stretchable substrate, and multiple stretchable light-emitting units arranged at intervals on the stretchable substrate, the stretchable light-emitting units including a first stretchable light-emitting unit arranged alternately with the main light-emitting units along a first direction;

[0007] The display panel has a first stretched state. When the stretchable substrate is stretched to the first stretched state along a first direction at a first stretch rate, at least a portion of the first stretched light-emitting units are in a light-emitting state.

[0008] In one embodiment, the display panel has an unstretched state, and when the display panel is in the unstretched state, the main light-emitting unit is in a light-emitting state.

[0009] In one embodiment, along the first direction, the spacing between the main light-emitting unit and the adjacent first stretched light-emitting unit is a first spacing;

[0010] The first spacing is positively correlated with the first preset stretching rate, which is the percentage of the difference between the size of the stretchable substrate along the first direction after being stretched by a first preset size and the size of the stretchable substrate along the first direction in the unstretched state, relative to the size of the stretchable substrate along the first direction in the unstretched state.

[0011] In one embodiment, the plurality of light-emitting units include a plurality of shrinkable light-emitting units spaced apart on the stretchable substrate, wherein the shrinkable light-emitting unit includes a first shrinkable light-emitting unit, and a first shrinkable light-emitting unit is provided between two adjacent main light-emitting units along the second direction;

[0012] When the stretchable substrate is stretched to the first stretched state along the first direction at a first stretching ratio, the stretchable substrate is shrunk to the first shrunk state along the second direction at a first shrinkage ratio, at least a portion of the first stretched light-emitting unit and at least a portion of the first shrunk light-emitting unit are in a light-emitting state, and the second direction is perpendicular to the first direction;

[0013] Optionally, the first direction is one of the length direction and the width direction of the stretchable substrate, and the second direction is the other of the length direction and the width direction of the stretchable substrate.

[0014] In one embodiment, along the second direction, the spacing between the main light-emitting unit and the adjacent first shrinking light-emitting unit is a second spacing;

[0015] The second spacing is positively correlated with the first preset shrinkage rate, which is the percentage of the difference between the size of the stretchable substrate along the second direction in the unstretched state and the size of the stretchable substrate along the second direction after being stretched by a first preset size along the first direction, relative to the size of the stretchable substrate along the second direction in the unstretched state.

[0016] In one embodiment, the first direction is the length direction of the stretchable substrate, and the second direction is the width direction of the stretchable substrate. A plurality of main light-emitting units are arranged in columns along the first direction and in rows along the second direction. The display panel is in the first stretched state, with the main light-emitting units in the first row in a light-emitting state, and the first stretched light-emitting units in the remaining rows all in a light-emitting state; the main light-emitting units in the first column are in a light-emitting state, and the first contracted light-emitting units in the remaining columns are in a light-emitting state; or...

[0017] The first direction is the width direction of the stretchable substrate, and the second direction is the length direction of the stretchable substrate. A plurality of main light-emitting units are arranged in a row along the first direction and in a column along the second direction. The display panel is in the first stretched state, the main light-emitting units in the first column are in the light-emitting state, and the first stretched light-emitting units in the remaining columns are all in the light-emitting state. The main light-emitting units in the first row are in the light-emitting state, and the first contracted light-emitting units in the remaining rows are in the light-emitting state.

[0018] In one embodiment, the plurality of shrinking light-emitting units further includes a second shrinking light-emitting unit, wherein a second shrinking light-emitting unit is provided between two adjacent main light-emitting units along the first direction;

[0019] The main light-emitting unit, the first stretching light-emitting unit, and the second contracting light-emitting unit are alternately arranged along the first direction;

[0020] Optionally, along the first direction, a main light-emitting unit is provided between the first stretching light-emitting unit and the adjacent second shrinking light-emitting unit;

[0021] Optionally, the stretching light-emitting unit includes a second stretching light-emitting unit, and the main light-emitting unit, the first shrinking light-emitting unit, and the second stretching light-emitting unit are alternately arranged along the second direction;

[0022] Optionally, along the second direction, a main light-emitting unit is provided between the first shrinking light-emitting unit and the adjacent second stretching light-emitting unit;

[0023] Optionally, a plurality of main light-emitting units, a plurality of first stretched light-emitting units, a plurality of first contracted light-emitting units, a plurality of second stretched light-emitting units, and a plurality of second contracted light-emitting units are arranged to form a plurality of repeating units;

[0024] Each repeating unit includes a main light-emitting unit, a first stretching light-emitting unit, a first contracting light-emitting unit, a second stretching light-emitting unit, and a second contracting light-emitting unit. In the repeating unit, the first stretching light-emitting unit and the second contracting light-emitting unit are disposed on opposite sides of the main light-emitting unit along a first direction, and the first contracting light-emitting unit and the second stretching light-emitting unit are disposed on opposite sides of the main light-emitting unit along a second direction.

[0025] In one embodiment, the stretched light-emitting unit includes a second stretched light-emitting unit arranged alternately with the main light-emitting unit along a second direction, and the display panel also has a diagonally stretched state; the first direction and the second direction are perpendicular to each other;

[0026] When the stretchable substrate is stretched to a diagonal stretching state at an inclined stretching rate, at least a portion of the first stretching light-emitting unit and at least a portion of the second stretching light-emitting unit are in a light-emitting state.

[0027] Preferably, when the stretchable substrate is stretched to a diagonal stretching state at an inclined stretching rate, all the first stretching light-emitting units and all the second stretching light-emitting units are in a light-emitting state.

[0028] In one embodiment, the orthographic projection of the main light-emitting unit on the stretchable substrate is a first projection pattern, and the orthographic projection of the first stretchable light-emitting unit on the stretchable substrate is a second projection pattern.

[0029] The first projected graphic and the second projected graphic are constructed to be the same graphic.

[0030] Optionally, both the first projected image and the second projected image are polygonal or circular.

[0031] Optionally, both the first projected image and the second projected image are regular polygons or circles;

[0032] Both the main light-emitting unit and the first stretched light-emitting unit include a first sub-pixel, a second sub-pixel, and a third sub-pixel with different light-emitting colors;

[0033] Optionally, one of the first sub-pixel, the second sub-pixel, and the third sub-pixel is a red sub-pixel, another of the first sub-pixel, the second sub-pixel, and the third sub-pixel is a green sub-pixel, and yet another of the first sub-pixel, the second sub-pixel, and the third sub-pixel is a blue sub-pixel.

[0034] According to a second aspect of this application, a display device is provided, including the display panel of any of the above embodiments.

[0035] In the technical solution of this application, since the main light-emitting unit and the first stretched light-emitting unit are alternately arranged along the first direction, the main light-emitting unit and the corresponding first stretched light-emitting unit are located in the same row or column along the first direction. When the display panel is in the first stretched state, the first stretched light-emitting unit can be roughly moved along the first direction to the position of the corresponding main light-emitting unit when the display panel is in the unstretched state. This allows the first stretched light-emitting unit in the first stretched state to compensate for the light-emitting state of the corresponding main light-emitting unit in the unstretched state. This helps to ensure that the multiple first stretched light-emitting units in the light-emitting state can roughly maintain the display effect of the multiple main light-emitting units in the unstretched state, thereby improving the display effect of the display panel in the first stretched state. Attached Figure Description

[0036] Figure 1 A partial top view of a display panel according to an embodiment of this application is shown in its unstretched state.

[0037] Figure 2 It shows Figure 1 A magnified view of a portion of the image.

[0038] Figure 3 A partial top view of a display panel according to an embodiment of this application in a first stretched state is shown.

[0039] Figure 4 A partial top view of a display panel according to an embodiment of this application in a second stretched state is shown.

[0040] Figure 5 A cross-sectional schematic diagram of a display panel according to an embodiment of this application is shown.

[0041] Reference numerals: 10, display panel; 100, stretchable substrate; 210, main light-emitting unit; 221, first stretchable light-emitting unit; 222, first contractile light-emitting unit; 231, second stretchable light-emitting unit; 232, second contractile light-emitting unit; 200a, repeating unit; 201, first sub-pixel; 202, second sub-pixel; 203, third sub-pixel; 310, first encapsulation layer; 320, second encapsulation layer; 330, third encapsulation layer. Detailed Implementation

[0042] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0043] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this application.

[0044] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0046] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0048] Figure 1 A partial top view of a display panel according to an embodiment of this application in its unstretched state is shown. Figure 2 It shows Figure 1 A magnified view of a portion of the diagram. Figure 3 A partial top view of a display panel according to an embodiment of this application in a first stretched state is shown.

[0049] Please see Figures 1-3 One embodiment of this application provides a display panel 10, including a stretchable substrate 100 and a plurality of light-emitting units.

[0050] The multiple light-emitting units include multiple main light-emitting units 210 arranged in an array on the stretchable substrate 100, and multiple stretchable light-emitting units arranged at intervals on the stretchable substrate 100. The stretchable light-emitting unit includes a first stretchable light-emitting unit 221. The main light-emitting units 210 and the first stretchable light-emitting unit 221 are arranged alternately along the first direction F1.

[0051] Optionally, the first direction F1 is the length direction or the width direction of the stretchable substrate 100.

[0052] The display panel 10 has a first stretched state. When the stretchable substrate 100 is stretched to the first stretched state along the first direction F1 at a first stretching rate, at least a portion of the first stretched light-emitting units 221 are in a light-emitting state.

[0053] Alternatively, the display panel 10 may be in a first stretched state, with some of the first stretched light-emitting units 221 in an illuminated state. For example, the main light-emitting units 210 may be arranged in a column along the first direction F1, with some of the first stretched light-emitting units 221 in the row in an illuminated state; or, for another example, the main light-emitting units 210 may be arranged in a row along the first direction F1, with some of the first stretched light-emitting units 221 in the column in an illuminated state. It is also possible that multiple main light-emitting units 210 may be arranged in a column along the first direction F1 and in a row along the second direction F2, with the display panel 10 in the first stretched state, the main light-emitting units 210 in the first row in an illuminated state, and the first stretched light-emitting units 221 in the remaining rows all in an illuminated state; or, multiple main light-emitting units 210 may be arranged in a row along the first direction F1 and in a column along the second direction F2, with the display panel 10 in the first stretched state, the main light-emitting units 210 in the first column in an illuminated state, and the first stretched light-emitting units 221 in the remaining columns all in an illuminated state. Of course, this application is not limited to these possibilities.

[0054] Alternatively, the display panel 10 may be in a first stretched state, with all first stretched light-emitting units 221 in a light-emitting state.

[0055] Since the main light-emitting unit 210 and the first stretched light-emitting unit 221 are alternately arranged along the first direction F1, the main light-emitting unit 210 and the corresponding first stretched light-emitting unit 221 are located in the same row or column along the first direction F1. When the display panel 10 is in the first stretched state, the first stretched light-emitting unit 221 can be roughly displaced along the first direction F1 to the position of the corresponding main light-emitting unit 210 when the display panel 10 is in the unstretched state. This allows the first stretched light-emitting unit 221 in the first stretched state to compensate for the light-emitting state of the corresponding main light-emitting unit 210 in the unstretched state. This helps to ensure that the multiple first stretched light-emitting units 221 in the light-emitting state can roughly maintain the display effect of the multiple main light-emitting units 210 in the unstretched state, thereby improving the display effect of the display panel 10 in the first stretched state.

[0056] In some embodiments, the display panel 10 has an unstretched state, and when the display panel 10 is in the unstretched state, the main light-emitting unit 210 is in the light-emitting state.

[0057] When the display panel 10 is in an unstretched state, it is not stretched and can emit light using the multiple main light-emitting units 210 arranged in an array, thereby improving the display effect of the display panel 10 in the unstretched state.

[0058] In some embodiments, the distance between the main light-emitting unit 210 and the adjacent first stretched light-emitting unit 221 along the first direction F1 is a first distance. The first distance is positively correlated with a first preset stretching rate, which is the percentage of the difference between the size of the stretchable substrate 100 along the first direction F1 after being stretched to a first preset size and the size of the stretchable substrate 100 along the first direction F1 in its unstretched state, relative to the size of the stretchable substrate 100 along the first direction F1 in its unstretched state.

[0059] The first spacing can be a vertical spacing or a horizontal spacing. For example, if the first direction F1 is the length direction of the stretchable substrate 100, the first spacing is a vertical spacing; or if the first direction F1 is the width direction of the stretchable substrate 100, the first spacing is a horizontal spacing.

[0060] Because the spacing between the main light-emitting unit 210 and the adjacent first stretched light-emitting unit 221 along the first direction F1 is positively correlated with the first preset stretching rate, and because the main light-emitting unit 210 and the first stretched light-emitting unit 221 are alternately arranged along the first direction F1, the main light-emitting unit 210 and the corresponding first stretched light-emitting unit 221 are located in the same row or column along the first direction F1. When the display panel 10 is in the first stretched state, the first stretched light-emitting unit 221 can be moved along the first direction F1 to the position of the corresponding main light-emitting unit 210 when the display panel 10 is in the unstretched state, so that when the display panel 10 is in the first stretched state, the spacing between adjacent first stretched light-emitting units 221 along the first direction F1 can still maintain the original spacing, that is, approximately equal to the spacing between adjacent main light-emitting units 210 along the first direction F1 when the display panel 10 is in the unstretched state (which can be combined with...). Figure 2 and Figure 3 (To understand), so that the arrangement of the multiple first stretched light-emitting units 221 in the first stretched state is roughly the same as the arrangement of the multiple main light-emitting units 210 in the unstretched state, which is beneficial to the multiple first stretched light-emitting units 221 in the light-emitting state being able to roughly maintain the display effect of the corresponding multiple main light-emitting units 210 in the unstretched state, thereby improving the display effect of the display panel 10 in the first stretched state.

[0061] In some embodiments, the first preset elongation rate is greater than 0% and less than or equal to 100%.

[0062] For example, the first preset stretch rate is 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or 100%.

[0063] The first preset stretching ratio can be set according to the stretching ratio of the stretchable substrate 100 and the usage requirements of the display panel 10. For example, the first preset stretching ratio can be set to be greater than 0% and less than or equal to 100% to meet the usage requirements of the display panel 10.

[0064] In some embodiments, in the unstretched state, the distance between two adjacent main light-emitting units 210 along the first direction F1 is a, the first preset stretching ratio is C1, the first distance is J1, and J1 = a * C1.

[0065] Thus, J1 can be set according to the distance between two adjacent main light-emitting units 210 along the first direction F1 and the first preset stretching rate. In this way, when the display panel 10 is in the first stretched state, the first stretched light-emitting unit 221 can be moved to the position of the corresponding main light-emitting unit 210 when the display panel 10 is in the unstretched state. This makes the arrangement of the multiple first stretched light-emitting units 221 in the first stretched state roughly the same as the arrangement of the multiple main light-emitting units 210 in the unstretched state. This is beneficial to make the multiple first stretched light-emitting units 221 in the light-emitting state roughly maintain the display effect of the corresponding multiple main light-emitting units 210 in the unstretched state, thereby improving the display effect of the display panel 10 in the first stretched state.

[0066] In some embodiments, the plurality of light-emitting units include a plurality of shrinkable light-emitting units spaced apart on the stretchable substrate 100. Each shrinkable light-emitting unit includes a first shrinkable light-emitting unit 222, and a first shrinkable light-emitting unit 222 is provided between two adjacent main light-emitting units 210 along the second direction F2. When the stretchable substrate 100 is stretched to a first stretched state along the first direction F1 at a first stretching rate, the stretchable substrate 100 shrinks to a first contracted state along the second direction F2 at a first contraction rate, and at least some of the first shrinkable light-emitting units 222 are in a light-emitting state. The second direction F2 is perpendicular to the first direction F1.

[0067] Optionally, the first direction F1 is one of the length direction and the width direction of the stretchable substrate 100, and the second direction F2 is the other of the length direction and the width direction of the stretchable substrate 100.

[0068] It can be that the first direction F1 is the length direction of the stretchable substrate 100, and the second direction F2 is the width direction of the stretchable substrate 100. When the stretchable substrate 100 is stretched along the length direction of the stretchable substrate 100, the stretchable substrate 100 will shrink along the width direction of the stretchable substrate 100 to the first shrinkage state with a first shrinkage rate, and at least a portion of the first stretched light-emitting unit 221 and at least a portion of the first shrunken light-emitting unit 222 are in the light-emitting state.

[0069] Alternatively, the first direction F1 is the width direction of the stretchable substrate 100, and the second direction F2 is the length direction of the stretchable substrate 100. When the stretchable substrate 100 is stretched along the width direction, the stretchable substrate 100 will shrink along the length direction of the stretchable substrate 100 to the first shrinkage state with a first shrinkage rate, and at least a portion of the first stretched light-emitting unit 221 and at least a portion of the first shrunken light-emitting unit 222 will be in the light-emitting state.

[0070] In either case, when the display panel 10 is in the first stretched state, the first stretched light-emitting unit 221 can be displaced along the first direction F1 to the position of the corresponding main light-emitting unit 210 when the display panel 10 is in the unstretched state, thereby enabling the first stretched light-emitting unit 221 in the first stretched state to compensate for the light-emitting state of the corresponding main light-emitting unit 210 in the unstretched state; alternatively, the stretchable substrate 100 can be contracted along the second direction F2 to the first contracted state, thereby enabling the first contracted light-emitting unit 222 to be displaced along the second direction F2 to the position of the corresponding main light-emitting unit 210 when the display panel 10 is in the unstretched state, thereby enabling the first contracted light-emitting unit 222 in both the first stretched and first contracted states to compensate for the light-emitting state of the corresponding main light-emitting unit 210 in the unstretched state. This is beneficial for maintaining the display effect of the multiple first stretched light-emitting units 221 and multiple first contracted light-emitting units 222 in the light-emitting state to approximately maintain the display effect of the multiple main light-emitting units 210 in the unstretched state, thereby improving the display effect of the display panel 10 in the first stretched state.

[0071] In some embodiments, along the second direction F2, the distance between the main light-emitting unit 210 and the adjacent first shrinking light-emitting unit 222 is a second distance. The second distance is positively correlated with a first preset shrinkage rate. The first preset shrinkage rate is the percentage of the difference between the size of the stretchable substrate along the second direction in the unstretched state and the size of the stretchable substrate along the second direction after being stretched by a first preset size along the first direction, relative to the size of the stretchable substrate along the second direction in the unstretched state.

[0072] The second spacing can be a horizontal spacing or a vertical spacing. For example, the first direction F1 is the length direction of the stretchable substrate 100, the second direction F2 is the width direction of the stretchable substrate 100, and the second spacing is a horizontal spacing; or, for another example, the first direction F1 is the width direction of the stretchable substrate 100, the second direction F2 is the length direction of the stretchable substrate 100, and the second spacing is a vertical spacing.

[0073] In some embodiments, in the unstretched state, the distance between two adjacent main light-emitting units 210 along the second direction F2 is b, the first preset shrinkage rate is D1, and the second distance is J2, where J2 = b * D1.

[0074] Optionally, the first preset shrinkage rate is greater than 0% and less than or equal to 50%.

[0075] For example, the first preset shrinkage rate is 9.09%, 16.7%, 23.1%, 28.6%, 33.3%, 37.5%, 41.2%, 44.4%, 47.4%, or 50%, etc.

[0076] Thus, J2 can be set according to the spacing between two adjacent main light-emitting units 210 along the second direction F2 and the first preset shrinkage rate. In this way, when the display panel 10 is in the first stretched state, the first shrinkage light-emitting unit 222 can be moved along the second direction F2 to the position of the main light-emitting unit 210 corresponding to the display panel 10 in the unstretched state. This allows the main light-emitting units 210 in the first column and the multiple first shrinkage light-emitting units 222 in the remaining columns to maintain the display effect of the multiple main light-emitting units 210 in the unstretched state (or allows the main light-emitting units 210 in the first row and the multiple first shrinkage light-emitting units 222 in the remaining rows to maintain the display effect of the multiple main light-emitting units 210 in the unstretched state), thereby improving the display effect of the display panel 10 in the first stretched state.

[0077] In some embodiments, the first direction F1 is the length direction of the stretchable substrate 100, the second direction F2 is the width direction of the stretchable substrate 100, a plurality of main light-emitting units 210 are arranged in columns along the first direction F1 and in rows along the second direction F2, the display panel 10 is in a first stretched state, the main light-emitting units 210 in the first row are in a light-emitting state, and the first stretched light-emitting units 221 in the remaining rows are all in a light-emitting state; the main light-emitting units 210 in the first column are in a light-emitting state, and the first contracted light-emitting units 222 in the remaining columns are in a light-emitting state.

[0078] When the display panel 10 is in the first stretched state, the first stretched light-emitting unit 221 is displaced along the first direction F1 to the position of the main light-emitting unit 210 corresponding to the unstretched state of the display panel 10. This makes the interval along the first direction F1 between adjacent first stretched light-emitting units 221 equal to the interval along the first direction F1 between the main light-emitting unit 210 and adjacent first stretched light-emitting units 221, and approximately equal to the interval along the first direction F1 between adjacent main light-emitting units 210 in the unstretched state of the display panel 10. This ensures that the arrangement of the first row of main light-emitting units 210 and the remaining rows of first stretched light-emitting units 221 in the first stretched state roughly maintains the arrangement of multiple main light-emitting units 210 in the unstretched state. Furthermore, since the distance along the second direction F2 between the main light-emitting unit 210 and adjacent first contracted light-emitting unit 222 is positively correlated with the first preset contraction rate, thus... When the display panel 10 is in the first stretched state, the stretchable substrate 100 is contracted along the second direction F2, so that the first contracted light-emitting unit 222 can be displaced along the second direction F2 to the position of the main light-emitting unit 210 corresponding to the display panel 10 in the unstretched state. This makes the interval between adjacent first contracted light-emitting units 222 along the second direction F2 equal to the interval between the main light-emitting unit 210 and adjacent first contracted light-emitting units 222 along the second direction F2, and approximately equal to the interval between adjacent main light-emitting units 210 along the second direction F2 when the display panel 10 is in the unstretched state. This ensures that the arrangement of the first column of main light-emitting units 210 and the remaining columns of first contracted light-emitting units 222 in the first stretched state is approximately the same as the arrangement of multiple main light-emitting units 210 in the unstretched state. This is beneficial to improving the display effect of the display panel 10 in the first stretched state.

[0079] In other embodiments, the first direction F1 is the width direction of the stretchable substrate 100, the second direction F2 is the length direction of the stretchable substrate 100, a plurality of main light-emitting units 210 are arranged in a row along the first direction F1 and in a column along the second direction F2, the display panel 10 is in a first stretched state, the main light-emitting units 210 in the first column are in a light-emitting state, and the first stretched light-emitting units 221 in the remaining columns are all in a light-emitting state, the main light-emitting units 210 in the first row are in a light-emitting state, and the first contracted light-emitting units 222 in the remaining rows are in a light-emitting state.

[0080] It can be understood that the first stretched light-emitting unit 221 is displaced along the first direction F1 to the position of the main light-emitting unit 210 corresponding to the display panel 10 in the unstretched state, so that the arrangement of the main light-emitting units 210 in the first column and the first stretched light-emitting units 221 in the remaining columns in the first stretched state is roughly the same as the arrangement of multiple main light-emitting units 210 in the unstretched state; in addition, the first contracted light-emitting unit 222 can be displaced along the second direction F2 to the position of the main light-emitting unit 210 corresponding to the display panel 10 in the unstretched state, so that the arrangement of the main light-emitting units 210 in the first row and the first contracted light-emitting units 222 in the remaining rows in the first stretched state is roughly the same as the arrangement of multiple main light-emitting units 210 in the unstretched state; thus, it is beneficial to improve the display effect of the display panel 10 in the first stretched state.

[0081] In summary, on the one hand, the arrangement of the main light-emitting units 210 in the first row and the first stretched light-emitting units 221 in the remaining rows (or the main light-emitting units 210 in the first column and the first stretched light-emitting units 221 in the remaining columns) in the first stretched state roughly maintains the arrangement of multiple main light-emitting units 210 in the unstretched state; on the other hand, the arrangement of the main light-emitting units 210 in the first column and the first contracted light-emitting units 222 in the remaining columns (or the main light-emitting units 210 in the first row and the first contracted light-emitting units 222 in the remaining rows) in the first stretched state roughly maintains the arrangement of multiple main light-emitting units 210 in the unstretched state; thus, it is beneficial to improve the display effect of the display panel 10 in the first stretched state.

[0082] In some embodiments, the orthographic projection of the main light-emitting unit 210 on the stretchable substrate 100 is constructed to have the same pattern as the orthographic projection of the first stretchable light-emitting unit 221 on the stretchable substrate 100.

[0083] In this way, the first stretched light-emitting unit 221 can be better used to compensate for the light-emitting state of the corresponding main light-emitting unit 210, so that the multiple first stretched light-emitting units 221 in the light-emitting state can roughly maintain the display effect of the multiple main light-emitting units 210 in the unstretched state, which is conducive to improving the display effect of the display panel 10 in the first stretched state.

[0084] In some embodiments, the orthographic projection of the main light-emitting unit 210 on the stretchable substrate 100 and the orthographic projection of the first shrinkable light-emitting unit 222 on the stretchable substrate 100 are constructed to have the same pattern.

[0085] In this way, the first shrinking light-emitting unit 222 can be better used to compensate for the light-emitting state of the corresponding main light-emitting unit 210, so that the main light-emitting unit 210 in the first column and the multiple first shrinking light-emitting units 222 in the remaining columns can roughly maintain the display effect of the multiple main light-emitting units 210 in the unstretched state (or so that the main light-emitting unit 210 in the first row and the multiple first shrinking light-emitting units 222 in the remaining rows can roughly maintain the display effect of the multiple main light-emitting units 210 in the unstretched state), thereby improving the display effect of the display panel 10 in the first stretched state.

[0086] Optionally, the first stretched light-emitting unit 221 and the first contracted light-emitting unit 222 belong to the same light-emitting unit.

[0087] This helps to improve the display uniformity of the display panel 10 in the first stretched state.

[0088] In some embodiments, the display panel 10 has a first stretched state and a second stretched state. When the stretchable substrate 100 is stretched to the second stretched state along the second direction F2 at a second stretching rate, at least a portion of the second stretched light-emitting units 231 are in the light-emitting state.

[0089] It is possible that some of the second stretched light-emitting units 231 are in a light-emitting state. For example, the main light-emitting units 210 are arranged in a column along the first direction F1, and some of the second stretched light-emitting units 231 in the column are in a light-emitting state; or, for example, the main light-emitting units 210 are arranged in a row along the first direction F1, and some of the second stretched light-emitting units 231 in the row are in a light-emitting state. Of course, this application is not limited to this.

[0090] Alternatively, all the second stretched light-emitting units 231 may be in a light-emitting state.

[0091] In this embodiment, along the second direction F2, the distance between the main light-emitting unit 210 and the adjacent second stretched light-emitting unit 231 is the third distance, which is J3. J3 is positively correlated with the second preset stretching rate. The second preset stretching rate is the difference between the size of the stretchable substrate 100 along the second direction F2 after being stretched to a second preset size and the size of the stretchable substrate 100 along the second direction F2 in the unstretched state, and the percentage of the size of the stretchable substrate 100 along the second direction F2 in the unstretched state.

[0092] Since the spacing between the main light-emitting unit 210 and the adjacent second stretched light-emitting unit 231 along the second direction F2 is positively correlated with the second preset stretching rate, and since the main light-emitting unit 210 and the second stretched light-emitting unit 231 are alternately arranged along the second direction F2, the main light-emitting unit 210 and the corresponding second stretched light-emitting unit 231 are located in the same row or column along the second direction F2. Taking the main light-emitting unit 210 and the corresponding second stretched light-emitting unit 231 being located in the same row along the second direction F2 as an example, when the display panel 10 is in the second stretched state, the second stretched light-emitting unit 231 can be stretched along the second direction F2 to the position of the corresponding main light-emitting unit 210 when the display panel 10 is in the unstretched state. This ensures that when the display panel 10 is in the second stretched state, the spacing between adjacent second stretched light-emitting units 231 along the second direction F2 can still maintain the original spacing, that is, approximately equal to the spacing between adjacent main light-emitting units 210 along the second direction F2 in the unstretched state (which can be combined with...). Figure 2 and Figure 4 (For understanding), the arrangement of the multiple second stretched light-emitting units 231 in the second stretched state is roughly the same as the arrangement of the multiple main light-emitting units 210 in the unstretched state, which is beneficial to the multiple second stretched light-emitting units 231 in the light-emitting state being able to roughly maintain the display effect of the corresponding multiple main light-emitting units 210 in the unstretched state, thereby improving the display effect of the display panel 10 in the second stretched state.

[0093] In this embodiment, the second preset elongation rate is greater than 0% and less than or equal to 100%.

[0094] For example, the second preset stretch rate is 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or 100%.

[0095] A second preset stretching ratio can be set according to the stretching ratio of the stretchable substrate 100 and the usage requirements of the display panel 10. For example, the second preset stretching ratio can be set to be greater than 0% and less than or equal to 100% to meet the usage requirements of the display panel 10.

[0096] In some embodiments, in the unstretched state, the distance between two adjacent main light-emitting units 210 along the second direction F2 is b, the second preset stretching ratio is C2, and J3 = b * C2.

[0097] Thus, J3 can be set according to the second preset stretching rate. When the display panel 10 is in the second stretched state, the second stretched light-emitting unit 231 can be stretched to the position of the main light-emitting unit 210 corresponding to the display panel 10 in the unstretched state. This makes the arrangement of the multiple second stretched light-emitting units 231 in the second stretched state roughly the same as the arrangement of the multiple main light-emitting units 210 in the unstretched state. This is beneficial to making the multiple second stretched light-emitting units 231 in the light-emitting state roughly maintain the display effect of the corresponding multiple main light-emitting units 210 in the unstretched state, thereby improving the display effect of the display panel 10 in the second stretched state.

[0098] In some embodiments, the orthographic projection of the main light-emitting unit 210 on the stretchable substrate 100 and the orthographic projection of the second stretchable light-emitting unit 231 on the stretchable substrate 100 are constructed to have the same pattern.

[0099] In this way, the second stretched light-emitting unit 231 can be better used to compensate for the light-emitting state of the corresponding main light-emitting unit 210, so that the multiple second stretched light-emitting units 231 in the light-emitting state can roughly maintain the display effect of the multiple main light-emitting units 210 in the unstretched state, thereby improving the display effect of the display panel 10 in the second stretched state.

[0100] In some embodiments, the display panel 10 has a first stretched state and a second stretched state. The plurality of shrinkable light-emitting units include a first shrinkable light-emitting unit 222 and a second shrinkable light-emitting unit 232. A first shrinkable light-emitting unit 222 is provided between two adjacent main light-emitting units 210 along the second direction F1, and a second shrinkable light-emitting unit 232 is provided between two adjacent main light-emitting units 210 along the first direction F1. When the stretchable substrate is stretched to the second stretched state along the second direction F2 at a second stretching rate, the stretchable substrate 100 shrinks to the second shrinkable state along the first direction at a second shrinking rate. At least a portion of the second stretched light-emitting units 231 and at least a portion of the second shrinkable light-emitting units 232 are in the light-emitting state.

[0101] Since a second shrinking light-emitting unit 232 is provided between two adjacent main light-emitting units 210 along the first direction F1, when the display panel 10 is in the second stretched state, the stretchable substrate 100 shrinks along the first direction F1 to the second shrinking state with a second shrinkage rate. The second shrinking light-emitting unit 232 can be moved to the position of the corresponding main light-emitting unit 210 when the display panel 10 is in the unstretched state. This allows the second shrinking light-emitting unit 232 in the second stretched state and the second shrinking state to compensate for the light-emitting state of the corresponding main light-emitting unit 210 in the unstretched state, thereby improving the display effect of the display panel 10 in the second stretched state.

[0102] In this embodiment, along the first direction F1, the distance between the main light-emitting unit 210 and the adjacent second shrinking light-emitting unit 232 is a fourth distance, J4. The fourth distance is positively correlated with the second preset shrinkage rate, which is the percentage of the difference between the size of the stretchable substrate 100 along the first direction F1 in its unstretched state and the size of the stretchable substrate 100 along the first direction F1 after being stretched by a second preset size along the second direction F2, relative to the size of the stretchable substrate 100 along the first direction F1 in its unstretched state.

[0103] Since J4 is positively correlated with the second preset shrinkage rate, when the display panel 10 is in the second stretched state, the second shrinkage light-emitting unit 232 can be more accurately moved to the position of the main light-emitting unit 210 corresponding to the unstretched state of the display panel 10, which is conducive to improving the display effect of the display panel 10 in the second stretched state.

[0104] In this embodiment, in the unstretched state, the distance between two adjacent main light-emitting units 210 along the first direction F1 is a, the second preset shrinkage rate is D2, and J4 = a * D2.

[0105] Optionally, the second preset shrinkage rate is greater than 0% and less than or equal to 50%.

[0106] For example, the second preset shrinkage rate is 9.09%, 16.7%, 23.1%, 28.6%, 33.3%, 37.5%, 41.2%, 44.4%, 47.4%, or 50%, etc.

[0107] Thus, J4 can be set according to the second preset shrinkage rate. In this way, when the display panel 10 is in the second stretched state, the second shrinking light-emitting unit 232 can be displaced along the first direction F1 to the position of the main light-emitting unit 210 corresponding to the unstretched state of the display panel 10. This makes the arrangement of the main light-emitting unit 210 in the first row and the second shrinking light-emitting units 232 in the remaining rows (or the main light-emitting unit 210 in the first column and the second shrinking light-emitting units 232 in the remaining columns) in the second stretched state roughly maintain the arrangement of multiple main light-emitting units 210 in the unstretched state, thereby improving the display effect of the display panel 10 in the second stretched state.

[0108] In some embodiments, a plurality of main light-emitting units 210 are arranged in columns along a first direction F1 and in rows along a second direction F2. The display panel 10 is in a second stretched state. The main light-emitting units 210 in the first column are in a light-emitting state, and the second stretched light-emitting units 231 in the remaining columns are all in a light-emitting state. The main light-emitting units 210 in the first row are in a light-emitting state, and the second contracted light-emitting units 232 in the remaining rows are in a light-emitting state.

[0109] When the display panel 10 is in the second stretched state, the second stretched light-emitting unit 231 is displaced along the second direction F2 to the position of the main light-emitting unit 210 corresponding to the unstretched state of the display panel 10. This makes the interval along the second direction F2 between adjacent second stretched light-emitting units 231 equal to the interval along the second direction F2 between the main light-emitting unit 210 and adjacent second stretched light-emitting units 231, and approximately equal to the interval along the second direction F2 between adjacent main light-emitting units 210 in the unstretched state of the display panel 10. This ensures that the arrangement of the first column of main light-emitting units 210 and the remaining columns of second stretched light-emitting units 231 in the second stretched state roughly maintains the arrangement of multiple main light-emitting units 210 in the unstretched state. Furthermore, since the distance between the main light-emitting unit 210 and adjacent second contracted light-emitting units 232 is positively correlated with the second preset contraction rate, when the display panel 10 is in the unstretched state, the light-emitting unit 231 is displaced along the second direction F2. When the display panel 10 is in the second stretched state, the stretchable substrate 100 is contracted along the first direction F1, so that the second contracted light-emitting unit 232 can be displaced along the first direction F1 to the position of the main light-emitting unit 210 corresponding to the unstretched state of the display panel 10. This makes the interval between adjacent second contracted light-emitting units 232 along the first direction F1 equal to the interval between the main light-emitting unit 210 and adjacent second contracted light-emitting units 232 along the first direction F1, and approximately equal to the interval between adjacent main light-emitting units 210 along the first direction F1 when the display panel 10 is unstretched. This ensures that the arrangement of the first row of main light-emitting units 210 and the remaining rows of second contracted light-emitting units 232 in the second stretched state is approximately the same as the arrangement of multiple main light-emitting units 210 in the unstretched state. This is beneficial to improving the display effect of the display panel 10 in the second stretched state.

[0110] In other embodiments, multiple main light-emitting units 210 are arranged in rows along a first direction F1 and in columns along a second direction F2. The display panel 10 is in a second stretched state. The main light-emitting units 210 in the first row are in a light-emitting state, and the second stretched light-emitting units 231 in the remaining rows are all in a light-emitting state. The main light-emitting units 210 in the first column are in a light-emitting state, and the second contracted light-emitting units 232 in the remaining columns are in a light-emitting state.

[0111] It can be understood that when the display panel 10 is in the second stretched state, the second stretched light-emitting unit 231 is displaced along the second direction F2 to the position of the main light-emitting unit 210 corresponding to the unstretched state of the display panel 10, so that the arrangement of the first row of main light-emitting units 210 and the remaining rows of second stretched light-emitting units 231 in the second stretched state is roughly the same as the arrangement of multiple main light-emitting units 210 in the unstretched state; in addition, when the display panel 10 is in the second stretched state, the stretchable substrate 100 is contracted along the first direction F1, so that the second contracted light-emitting unit 232 can be displaced along the first direction F1 to the position of the main light-emitting unit 210 corresponding to the unstretched state of the display panel 10, so that the arrangement of the first column of main light-emitting units 210 and the remaining columns of second contracted light-emitting units 232 in the second stretched state is roughly the same as the arrangement of multiple main light-emitting units 210 in the unstretched state; thus, it is beneficial to improve the display effect of the display panel 10 in the second stretched state.

[0112] In summary, on the one hand, the arrangement of the main light-emitting units 210 in the first column and the second stretched light-emitting units 231 in the remaining columns (or the main light-emitting units 210 in the first row and the second stretched light-emitting units 231 in the remaining rows) in the second stretched state roughly maintains the arrangement of multiple main light-emitting units 210 in the unstretched state; on the other hand, the arrangement of the main light-emitting units 210 in the first row and the second contracted light-emitting units 232 in the remaining rows (or the main light-emitting units 210 in the first column and the second contracted light-emitting units 232 in the remaining columns) in the second stretched state roughly maintains the arrangement of multiple main light-emitting units 210 in the unstretched state; thus, it is beneficial to improve the display effect of the display panel 10 in the second stretched state.

[0113] In some embodiments, the orthographic projection of the main light-emitting unit 210 on the stretchable substrate 100 and the orthographic projection of the second shrinkable light-emitting unit 232 on the stretchable substrate 100 are constructed to have the same pattern.

[0114] In this way, the second shrinking light-emitting unit 232 can be better used to compensate for the light-emitting state of the corresponding main light-emitting unit 210, so that the arrangement of the main light-emitting unit 210 in the first row and the second shrinking light-emitting unit 232 in the remaining rows (or the main light-emitting unit 210 in the first column and the second shrinking light-emitting unit 232 in the remaining columns) in the second stretched state is roughly the same as the arrangement of multiple main light-emitting units 210 in the unstretched state, which is conducive to improving the display effect of the display panel 10 in the second stretched state.

[0115] Optionally, the second stretched light-emitting unit 231 and the second contracted light-emitting unit 232 belong to the same light-emitting unit.

[0116] This helps to improve the display uniformity of the display panel 10 in the first stretched state.

[0117] Optionally, the main light-emitting unit 210, the first stretched light-emitting unit 221, the first contracted light-emitting unit 222, the second stretched light-emitting unit 231, and the second contracted light-emitting unit 232 belong to the same light-emitting unit.

[0118] In some embodiments, the main light-emitting unit 210, the first stretching light-emitting unit 221, and the second shrinking light-emitting unit 232 are alternately arranged along the first direction F1.

[0119] Optionally, along the first direction F1, a main light-emitting unit 210 is provided between the first stretched light-emitting unit 221 and the adjacent second contracted light-emitting unit 232.

[0120] This facilitates the regular arrangement of the main light-emitting unit 210, the first stretched light-emitting unit 221, and the second contracted light-emitting unit 232 on the stretchable substrate 100. For example, it facilitates the array arrangement of multiple first stretched light-emitting units 221 according to the arrangement pattern of multiple main light-emitting units 210, and also facilitates the array arrangement of multiple second contracted light-emitting units 232 according to the arrangement pattern of multiple main light-emitting units 210.

[0121] In some embodiments, the main light-emitting unit 210, the first shrinking light-emitting unit 222, and the second stretching light-emitting unit 231 are alternately arranged along the second direction F2.

[0122] Optionally, along the second direction F2, a main light-emitting unit 210 is provided between the first shrinking light-emitting unit 222 and the adjacent second stretching light-emitting unit 231.

[0123] This facilitates the regular arrangement of the main light-emitting unit 210, the first stretched light-emitting unit 221, the first contracted light-emitting unit 222, the second stretched light-emitting unit 231, and the second contracted light-emitting unit 232 on the stretchable substrate 100. For example, it facilitates the array arrangement of multiple first contracted light-emitting units 222 according to the arrangement pattern of multiple main light-emitting units 210, and also facilitates the array arrangement of multiple second stretched light-emitting units 231 according to the arrangement pattern of multiple main light-emitting units 210.

[0124] For example, the spacing between two adjacent main light-emitting units 210 along the first direction F1 is equal to the spacing between two adjacent first contraction light-emitting units 222 along the first direction F1, and also equal to the spacing between two adjacent second stretching light-emitting units 231 along the first direction F1. Similarly, the spacing between two adjacent main light-emitting units 210 along the second direction F2 is equal to the spacing between two adjacent first contraction light-emitting units 222 along the second direction F2, and also equal to the spacing between two adjacent second stretching light-emitting units 231 along the second direction F2.

[0125] In some embodiments, a plurality of main light-emitting units 210, a plurality of first stretched light-emitting units 221, a plurality of first contracted light-emitting units 222, a plurality of second stretched light-emitting units 231, and a plurality of second contracted light-emitting units 232 are arranged to form a plurality of repeating units 200a. Each repeating unit 200a includes a main light-emitting unit 210, a first stretched light-emitting unit 221, a first contracted light-emitting unit 222, a second stretched light-emitting unit 231, and a second contracted light-emitting unit 232. The first stretched light-emitting unit 221 and the second contracted light-emitting unit 232 are disposed on opposite sides of the main light-emitting unit 210 along a first direction F1, and the first contracted light-emitting unit 222 and the second stretched light-emitting unit 231 are disposed on opposite sides of the main light-emitting unit 210 along a second direction F2.

[0126] It can be understood that the first stretching light-emitting unit 221, the first shrinking light-emitting unit 222, the second stretching light-emitting unit 231, and the second shrinking light-emitting unit 232 are arranged at intervals around the main light-emitting unit 210.

[0127] This facilitates the regular arrangement of the main light-emitting unit 210, the first stretched light-emitting unit 221, the first contracted light-emitting unit 222, the second stretched light-emitting unit 231, and the second contracted light-emitting unit 232 on the stretchable substrate 100. For example, it facilitates the array arrangement of multiple first stretched light-emitting units 221 according to the arrangement pattern of multiple main light-emitting units 210, as well as the array arrangement of multiple first contracted light-emitting units 222 according to the arrangement pattern of multiple main light-emitting units 210, as well as the array arrangement of multiple second stretched light-emitting units 231 according to the arrangement pattern of multiple main light-emitting units 210, as well as the array arrangement of multiple second contracted light-emitting units 232 according to the arrangement pattern of multiple main light-emitting units 210.

[0128] In some embodiments, the spacing between two adjacent main light-emitting units 210 along the first direction F1 is equal to the spacing between two adjacent first stretched light-emitting units 221 along the first direction F1, and the spacing between two adjacent main light-emitting units 210 along the second direction F2 is equal to the spacing between two adjacent first stretched light-emitting units 221 along the second direction F2.

[0129] Optionally, a plurality of main light-emitting units 210 are arranged at equal intervals on the stretchable substrate 100, and a plurality of first stretchable light-emitting units 221 are arranged at equal intervals on the stretchable substrate 100. That is, the distance between two adjacent main light-emitting units 210 is equal to the distance between two adjacent first stretchable light-emitting units 221.

[0130] This helps to improve the display uniformity of the display panel 10 in the first stretched state.

[0131] In some embodiments, the spacing between two adjacent main light-emitting units 210 along the first direction F1 is equal to the spacing between two adjacent first shrinking light-emitting units 222 along the first direction F1, and the spacing between two adjacent main light-emitting units 210 along the second direction F2 is equal to the spacing between two adjacent first shrinking light-emitting units 222 along the second direction F2.

[0132] Optionally, a plurality of main light-emitting units 210 are arranged at equal intervals on the stretchable substrate 100, and a plurality of first shrinkable light-emitting units 222 are arranged at equal intervals on the stretchable substrate 100. That is, the distance between two adjacent main light-emitting units 210 is equal to the distance between two adjacent first shrinkable light-emitting units 222.

[0133] This helps to improve the display uniformity of the display panel 10 in the first stretched state.

[0134] In some embodiments, the spacing between two adjacent main light-emitting units 210 along the first direction F1 is equal to the spacing between two adjacent second stretched light-emitting units 231 along the first direction F1, and the spacing between two adjacent main light-emitting units 210 along the second direction F2 is equal to the spacing between two adjacent second stretched light-emitting units 231 along the second direction F2.

[0135] Optionally, a plurality of main light-emitting units 210 are arranged at equal intervals on the stretchable substrate 100, and a plurality of second stretchable light-emitting units 231 are arranged at equal intervals on the stretchable substrate 100. That is, the distance between two adjacent main light-emitting units 210 is equal to the distance between two adjacent second stretchable light-emitting units 231.

[0136] This helps to improve the display uniformity of the display panel 10 in the second stretched state.

[0137] In some embodiments, the spacing between two adjacent main light-emitting units 210 along the first direction F1 is equal to the spacing between two adjacent second shrinking light-emitting units 232 along the first direction F1, and the spacing between two adjacent main light-emitting units 210 along the second direction F2 is equal to the spacing between two adjacent second shrinking light-emitting units 232 along the second direction F2.

[0138] Optionally, a plurality of main light-emitting units 210 are arranged at equal intervals on the stretchable substrate 100, and a plurality of second shrinkable light-emitting units 232 are arranged at equal intervals on the stretchable substrate 100. That is, the distance between two adjacent main light-emitting units 210 is equal to the distance between two adjacent second shrinkable light-emitting units 232.

[0139] This helps to improve the display uniformity of the display panel 10 in the second stretched state.

[0140] In some embodiments, the display panel 10 also has a diagonally stretched state. When the stretchable substrate 100 is stretched to the diagonally stretched state at an inclined stretching rate, at least a portion of the first stretched light-emitting unit 221 and at least a portion of the second stretched light-emitting unit 231 are in the light-emitting state.

[0141] The display panel 10 is in a diagonally stretched state, meaning it is stretched along the first direction F1 and the second direction F2. At this time, at least a portion of the first stretched light-emitting unit 221 and at least a portion of the second stretched light-emitting unit 231 emit light. Thus, when the display panel 10 is in the diagonally stretched state, the first stretched light-emitting unit 221 and the corresponding second stretched light-emitting unit 231 can be stretched to the position of the same main light-emitting unit 210 in the unstretched state of the display panel 10 (the main light-emitting unit 210, the first stretched light-emitting unit 221, and the second stretched light-emitting unit 231 are located in the same repeating unit 200a in the unstretched state). This allows the first stretched light-emitting unit 221 and the corresponding second stretched light-emitting unit 231 to form a light-emitting unit combination. The spacing between adjacent light-emitting unit combinations in the diagonally stretched state is approximately equal to the spacing between adjacent main light-emitting units 210 in the unstretched state. This makes the display effect of the display panel 10 in the diagonally stretched state more consistent with that in the unstretched state, which is beneficial for improving the display effect of the display panel 10 in the diagonally stretched state.

[0142] In this embodiment, multiple main light-emitting units 210 may be arranged in columns along a first direction F1 and in rows along a second direction F2. The display panel 10 is in a diagonally stretched state, with the main light-emitting units 210 in the first row emitting light, and the first stretched light-emitting units 221 in the remaining rows emitting light; and the main light-emitting units 210 in the first column emitting light, and the second stretched light-emitting units 231 in the remaining columns emitting light. Alternatively, multiple main light-emitting units 210 may be arranged in rows along a first direction F1 and in columns along a second direction F2; the display panel 10 is in a diagonally stretched state, with the main light-emitting units 210 in the first column emitting light, and the first stretched light-emitting units 221 in the remaining columns emitting light; and the main light-emitting units 210 in the first row emitting light, and the second stretched light-emitting units 231 in the remaining rows emitting light.

[0143] In the diagonally stretched state, the stretchable substrate 100 can be stretched along the first direction F1 and the second direction F2 respectively, so that the first stretched light-emitting unit 221 and the corresponding second stretched light-emitting unit 231 are stretched to the position of the same main light-emitting unit 210 corresponding to the unstretched state of the display panel 10. The first stretched light-emitting unit 221 and the corresponding second stretched light-emitting unit 231 can form a light-emitting unit combination. In the diagonally stretched state, the spacing between adjacent light-emitting unit combinations can be approximately equal to the spacing between adjacent main light-emitting units 210 in the unstretched state. This makes the display effect of the display panel 10 in the diagonally stretched state more consistent with the display effect of the display panel 10 in the unstretched state, which is beneficial to improving the display effect of the display panel 10 in the diagonally stretched state.

[0144] Optionally, when the stretchable substrate 100 is stretched to a diagonal stretching state at an inclined stretching rate, all the first stretching light-emitting units 221 and all the second stretching light-emitting units 231 are in a light-emitting state.

[0145] In some embodiments, the orthographic projection of the main light-emitting unit 210 onto the stretchable substrate 100 is a first projection pattern, and the orthographic projection of the first stretchable light-emitting unit 221 onto the stretchable substrate 100 is a second projection pattern; the first projection pattern and the second projection pattern are constructed with the same pattern.

[0146] Optionally, both the first and second projected graphics are polygonal or circular.

[0147] Optionally, both the first and second projected graphics are regular polygons or circles; for example, both the first and second projected graphics are squares.

[0148] The multiple first stretched light-emitting units 221 in the light-emitting state can better maintain the display effect of the corresponding multiple main light-emitting units 210 in the unstretched state, thereby improving the display effect of the display panel 10 in the first stretched state.

[0149] In some embodiments, the orthographic projection of the first shrinking light-emitting unit 222 onto the stretchable substrate 100 is a third projection pattern, and both the first projection pattern and the third projection pattern are polygonal or circular.

[0150] Optionally, both the first and third projected graphics are regular polygons or circles; for example, both the first and third projected graphics are squares.

[0151] This is more conducive to improving the display effect of the display panel 10 in the first stretched state.

[0152] In some embodiments, the orthographic projection of the second stretchable light-emitting unit 231 onto the stretchable substrate 100 is a fourth projection pattern, and both the first projection pattern and the fourth projection pattern are polygonal or circular.

[0153] Optionally, both the first and fourth projected graphics are regular polygons or circles; for example, both the first and fourth projected graphics are squares.

[0154] The multiple second stretched light-emitting units 231 in the light-emitting state can better maintain the display effect of the corresponding multiple main light-emitting units 210 in the unstretched state, thereby improving the display effect of the display panel 10 in the second stretched state.

[0155] In some embodiments, the orthographic projection of the second shrinking light-emitting unit 232 onto the stretchable substrate 100 is a fifth projection pattern, and both the first projection pattern and the fifth projection pattern are polygonal or circular.

[0156] Optionally, both the first and fifth projected graphics are regular polygons or circles; for example, both the first and fifth projected graphics are squares.

[0157] This is more conducive to improving the display effect of the display panel 10 in the second stretched state.

[0158] In some embodiments, both the main light-emitting unit 210 and the first stretched light-emitting unit 221 include a first sub-pixel 201, a second sub-pixel 202, and a third sub-pixel 203 with different light-emitting colors (e.g., ...). Figure 5 (As shown).

[0159] Optionally, one of the first sub-pixel 201, the second sub-pixel 202, and the third sub-pixel 203 is a red sub-pixel, another of the first sub-pixel 201, the second sub-pixel 202, and the third sub-pixel 203 is a green sub-pixel, and yet another of the first sub-pixel 201, the second sub-pixel 202, and the third sub-pixel 203 is a blue sub-pixel.

[0160] In this way, by using the first sub-pixel 201, the second sub-pixel 202, and the third sub-pixel 203 with different light emission colors, the display effect of the main light emission unit 210 and the first stretched light emission unit 221 can be improved, thereby improving the display effect of the display panel 10.

[0161] This enables the main light-emitting unit 210 and the first stretched light-emitting unit 221 to achieve color display.

[0162] Optionally, the first shrinking light-emitting unit 222 includes a first sub-pixel 201, a second sub-pixel 202, and a third sub-pixel 203 with different light-emitting colors.

[0163] In this way, by using the first sub-pixel 201, the second sub-pixel 202 and the third sub-pixel 203 with different light emission colors, the display effect of the first shrinking light emission unit 222 can be improved, thereby improving the display effect of the display panel 10.

[0164] Optionally, the second stretched light-emitting unit 231 includes a first sub-pixel 201, a second sub-pixel 202, and a third sub-pixel 203 with different light-emitting colors.

[0165] In this way, by using the first sub-pixel 201, the second sub-pixel 202, and the third sub-pixel 203 with different light emission colors, the display effect of the second stretched light emission unit 231 can be improved, thereby improving the display effect of the display panel 10.

[0166] Optionally, the second shrinking light-emitting unit 232 includes a first sub-pixel 201, a second sub-pixel 202, and a third sub-pixel 203 with different light-emitting colors.

[0167] In this way, by using the first sub-pixel 201, the second sub-pixel 202, and the third sub-pixel 203 with different light emission colors, the display effect of the second shrinking light emission unit 232 can be improved, thereby improving the display effect of the display panel 10.

[0168] In some embodiments, the display panel 10 further includes a first encapsulation layer 310, a second encapsulation layer 320, and a third encapsulation layer 330. The first encapsulation layer 310 is disposed on the stretchable substrate 100 and covers a plurality of light-emitting units. The second encapsulation layer 320 covers the first encapsulation layer 310, and the third encapsulation layer 330 covers the second encapsulation layer 320.

[0169] In this way, the first encapsulation layer 310, the second encapsulation layer 320 and the third encapsulation layer 330 can be used to form multiple encapsulations for multiple light-emitting units, which is beneficial to improving the ability of the display panel 10 to block moisture, and thus improving the display effect and reliability of the display panel 10.

[0170] One embodiment of this application provides a display device, including the display panel 10 of any of the above embodiments.

[0171] The display device is specifically a stretchable display screen that can adapt to any shape of surface. Consumers can unfold or fold, flatten or bend the display device at any time as needed, and it has a good display effect.

[0172] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0173] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display panel, characterized in that, include: Stretchable substrate; and Multiple light-emitting units, the multiple light-emitting units including multiple main light-emitting units arranged in an array on the stretchable substrate, and multiple stretchable light-emitting units arranged at intervals on the stretchable substrate, the stretchable light-emitting units including a first stretchable light-emitting unit arranged alternately with the main light-emitting units along a first direction; The display panel has a first stretched state. When the stretchable substrate is stretched to the first stretched state along a first direction with a first stretching rate, at least a portion of the first stretched light-emitting units are in a light-emitting state. The display panel is in an unstretched state, and when the display panel is in the unstretched state, the main light-emitting unit is in a light-emitting state; The plurality of light-emitting units include a plurality of shrinkable light-emitting units spaced apart on the stretchable substrate. Each shrinkable light-emitting unit includes a first shrinkable light-emitting unit, and a first shrinkable light-emitting unit is provided between two adjacent main light-emitting units along the second direction. When the stretchable substrate is stretched to the first stretched state along the first direction at a first stretching ratio, the stretchable substrate is shrunk to the first shrunk state along the second direction at a first shrinkage ratio, at least a portion of the first stretched light-emitting unit and at least a portion of the first shrunk light-emitting unit are in a light-emitting state, and the second direction is perpendicular to the first direction; The plurality of shrinking light-emitting units further includes a second shrinking light-emitting unit, wherein a second shrinking light-emitting unit is provided between two adjacent main light-emitting units along the first direction; The main light-emitting unit, the first stretching light-emitting unit, and the second contracting light-emitting unit are alternately arranged along the first direction; The stretching light-emitting unit includes a second stretching light-emitting unit, and the main light-emitting unit, the first shrinking light-emitting unit, and the second stretching light-emitting unit are alternately arranged along the second direction.

2. The display panel according to claim 1, characterized in that, Along the first direction, the distance between the main light-emitting unit and the adjacent first stretched light-emitting unit is a first distance; The first spacing is positively correlated with the first preset stretching rate, which is the percentage of the difference between the size of the stretchable substrate along the first direction after being stretched by a first preset size and the size of the stretchable substrate along the first direction in the unstretched state, relative to the size of the stretchable substrate along the first direction in the unstretched state.

3. The display panel according to claim 1, characterized in that, The first direction is one of the length direction and the width direction of the stretchable substrate, and the second direction is the other of the length direction and the width direction of the stretchable substrate.

4. The display panel according to claim 3, characterized in that, Along the second direction, the distance between the main light-emitting unit and the adjacent first shrinking light-emitting unit is the second distance; The second spacing is positively correlated with the first preset shrinkage rate, which is the percentage of the difference between the size of the stretchable substrate along the second direction in the unstretched state and the size of the stretchable substrate along the second direction after being stretched by a first preset size along the first direction, relative to the size of the stretchable substrate along the second direction in the unstretched state.

5. The display panel according to claim 3, characterized in that, The first direction is the length direction of the stretchable substrate, and the second direction is the width direction of the stretchable substrate. A plurality of main light-emitting units are arranged in columns along the first direction and in rows along the second direction. The display panel is in the first stretched state, the main light-emitting units in the first row are in the light-emitting state, and the first stretched light-emitting units in the remaining rows are all in the light-emitting state. The main light-emitting units in the first column are in the light-emitting state, and the first contracted light-emitting units in the remaining columns are in the light-emitting state. or, The first direction is the width direction of the stretchable substrate, and the second direction is the length direction of the stretchable substrate. A plurality of main light-emitting units are arranged in a row along the first direction and in a column along the second direction. The display panel is in the first stretched state, the main light-emitting units in the first column are in the light-emitting state, and the first stretched light-emitting units in the remaining columns are all in the light-emitting state. The main light-emitting units in the first row are in the light-emitting state, and the first contracted light-emitting units in the remaining rows are in the light-emitting state.

6. The display panel according to claim 3, characterized in that, Along the first direction, a main light-emitting unit is provided between the first stretched light-emitting unit and the adjacent second contracted light-emitting unit; and / or Along the second direction, a main light-emitting unit is provided between the first shrinking light-emitting unit and the adjacent second stretching light-emitting unit.

7. The display panel according to claim 6, characterized in that, Multiple main light-emitting units, multiple first stretched light-emitting units, multiple first contracted light-emitting units, multiple second stretched light-emitting units, and multiple second contracted light-emitting units are arranged to form multiple repeating units; Each repeating unit includes a main light-emitting unit, a first stretching light-emitting unit, a first contracting light-emitting unit, a second stretching light-emitting unit, and a second contracting light-emitting unit. In the repeating unit, the first stretching light-emitting unit and the second contracting light-emitting unit are disposed on opposite sides of the main light-emitting unit along a first direction, and the first contracting light-emitting unit and the second stretching light-emitting unit are disposed on opposite sides of the main light-emitting unit along a second direction.

8. The display panel according to claim 1 or 2, characterized in that, The stretchable light-emitting unit includes a second stretchable light-emitting unit that is alternately arranged with the main light-emitting unit along the second direction, and the display panel also has a diagonally stretched state; the first direction and the second direction are perpendicular to each other; When the stretchable substrate is stretched to a diagonal stretching state at an inclined stretching rate, at least a portion of the first stretching light-emitting unit and at least a portion of the second stretching light-emitting unit are in a light-emitting state.

9. The display panel according to claim 8, characterized in that, When the stretchable substrate is stretched to a diagonal stretching state at an inclined stretching rate, all the first stretching light-emitting units and all the second stretching light-emitting units are in a light-emitting state.

10. The display panel according to claim 1 or 2, characterized in that, The orthographic projection of the main light-emitting unit on the stretchable substrate is a first projection pattern, and the orthographic projection of the first stretchable light-emitting unit on the stretchable substrate is a second projection pattern. The first projected graphic and the second projected graphic are constructed to be the same graphic.

11. The display panel according to claim 10, characterized in that, Both the first projected graphic and the second projected graphic are polygonal or circular.

12. The display panel according to claim 11, characterized in that, Both the first projected graphic and the second projected graphic are regular polygons or circles.

13. The display panel according to claim 10, characterized in that, Both the main light-emitting unit and the first stretched light-emitting unit include a first sub-pixel, a second sub-pixel, and a third sub-pixel with different light-emitting colors.

14. The display panel according to claim 13, characterized in that, One of the first sub-pixel, the second sub-pixel, and the third sub-pixel is a red sub-pixel, another of the first sub-pixel, the second sub-pixel, and the third sub-pixel is a green sub-pixel, and yet another of the first sub-pixel, the second sub-pixel, and the third sub-pixel is a blue sub-pixel.

15. A display device, characterized in that, Includes the display panel as described in any one of claims 1-14.

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