Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises a stretchable substrate and a plurality of light-emitting units, and the light-emitting units comprise a plurality of main light-emitting units distributed on the stretchable substrate in an array mode and a plurality of stretchable light-emitting units distributed on the stretchable substrate at intervals. The stretching light-emitting units comprise first stretching light-emitting units which are alternately arranged with the main light-emitting units in the first direction. The display panel has a first stretching state, and when the stretchable substrate is stretched to the first stretching state at a first stretching rate in the first direction, at least part of the first stretching light-emitting units are in a light-emitting state. The first stretching light-emitting units in the first stretching state can make up the light-emitting state of the corresponding main light-emitting units in the non-stretching state, and then the display effect of the display panel in the first stretching state can be improved.

Description

Technical Field

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

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

[0003] Based on this, it is necessary to provide a display panel and a display device to address the problem of poor display effect of traditional display panels.

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

[0005] a stretchable substrate; and

[0006] A plurality of light-emitting units, the plurality of light-emitting units comprising a plurality of main light-emitting units arranged in an array on the stretchable substrate, and a plurality of stretch light-emitting units arranged at intervals on the stretchable substrate, the stretch light-emitting units comprising first stretch light-emitting units 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 along a first direction at a first stretching rate to the first stretched state, at least part of the first stretched light-emitting units are in a light-emitting state.

[0008] In one of the embodiments, 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 distance between the main light-emitting unit and the adjacent first stretched light-emitting unit is a first distance;

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

[0011] In one embodiment, the plurality of light-emitting units include a plurality of contraction light-emitting units arranged at intervals on the stretchable substrate, the contraction light-emitting units include a first contraction light-emitting unit, and a first contraction light-emitting unit is provided between two adjacent main light-emitting units along the second direction;

[0012] When the stretchable substrate is stretched along a first direction at a first stretching rate to the first stretching state, the stretchable substrate is contracted along a second direction at a first contraction rate to the first contraction state, at least part of the first stretched light-emitting units and at least part of the first contracted light-emitting units 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 of the embodiments, along the second direction, the spacing between the main light-emitting unit and the adjacent first contraction light-emitting unit is a second spacing;

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

[0016] In one embodiment, the first direction is the length direction of the stretchable substrate, the second direction is the width direction of the stretchable substrate, a plurality of the 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 stretching state, the main light emitting units in the first row are in the light emitting state, and the first stretching light emitting units in the remaining rows are in the light emitting state; the main light emitting units in the first column are in the light emitting state, and the first contracting light emitting units in the remaining columns are in the light emitting state; or,

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

[0018] In one embodiment, the plurality of contractible light-emitting units further include a second contractible light-emitting unit, and a second contractible light-emitting unit is disposed 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 shrinking light-emitting unit are arranged alternately 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 stretch light-emitting unit includes a second stretch light-emitting unit, and the main light-emitting unit, the first contraction light-emitting unit and the second stretch 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 contraction light emitting unit and the adjacent second extension light emitting unit;

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

[0024] Each of the repeating units includes a main light-emitting unit, a first stretched light-emitting unit, a first contracted light-emitting unit, a second stretched light-emitting unit and a second contracted light-emitting unit. In the repeating unit, the first stretched light-emitting unit and the second contracted light-emitting unit are arranged on opposite sides of the main light-emitting unit along the first direction, and the first contracted light-emitting unit and the second stretched light-emitting unit are arranged on opposite sides of the main light-emitting unit along the 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 diagonally stretched state at an inclined stretching rate, at least a portion of the first stretched light-emitting unit and at least a portion of the second stretched light-emitting unit are both in a light-emitting state;

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

[0028] In one of the embodiments, 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 projection figure and the second projection figure are constructed as the same figure;

[0030] Optionally, the first projection figure and the second projection figure are both polygonal or circular;

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

[0032] The main light-emitting unit and the first stretched light-emitting unit each 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 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 the present application, a display device is provided, comprising a display panel according to any one of the above embodiments.

[0035] In the technical solution of the present application, since the main light-emitting units and the first stretched light-emitting units are alternately arranged along the first direction, the main light-emitting units and the corresponding first stretched light-emitting units 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 units can be roughly displaced along the first direction to the position of the corresponding main light-emitting units where the display panel is in the unstretched state, so that the first stretched 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, which is beneficial for the multiple first stretched light-emitting units in the light-emitting state to roughly maintain the display effect of the corresponding multiple main light-emitting units in the unstretched state, which is beneficial for improving the display effect of the display panel in the first stretched state. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0037] Figure 2 Shows Figure 1 A partial enlarged schematic diagram of .

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

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

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

[0041] Figure numerals: 10, display panel; 100, stretchable substrate; 210, main light-emitting unit; 221, first stretched light-emitting unit; 222, first contracted light-emitting unit; 231, second stretched light-emitting unit; 232, second contracted 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 DESCRIPTION

[0042] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0043] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0044] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0046] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, 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 implementation method.

[0048] Figure 1 FIG. 4 shows a partial top view of a display panel in an unstretched state according to an embodiment of the present application. Figure 2 Shows Figure 1 A partial enlarged schematic diagram of Figure 3 A partial top view of a display panel in a first stretched state according to an embodiment of the present application is shown.

[0049] See also Figure 1-Figure 3 , an embodiment of the present 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 a plurality of main light-emitting units 210 arranged in an array on the stretchable substrate 100, and a plurality of stretched light-emitting units arranged at intervals on the stretchable substrate 100, the stretched light-emitting units include a first stretched light-emitting unit 221, and the main light-emitting units 210 and the first stretched light-emitting units 221 are alternately arranged along the first direction F1.

[0051] Optionally, the first direction F1 is a length direction or a 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 at a first stretching rate along the first direction F1, at least part of the first stretched light-emitting units 221 is in a light-emitting state.

[0053] It can be that the display panel 10 is in the first stretched state, and some of the first stretched light-emitting units 221 are in the light-emitting state, for example, the main light-emitting units 210 are arranged in columns along the first direction F1, and some of the rows of the first stretched light-emitting units 221 are in the light-emitting state; for another example, the main light-emitting units 210 are arranged in rows along the first direction F1, and some of the columns of the first stretched light-emitting units 221 are in the light-emitting state. It can also be that 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 the first stretched state, the main light-emitting units 210 in the first row are in the light-emitting state, and the first stretched light-emitting units 221 in the remaining rows are all in the light-emitting state; or, a plurality of main light-emitting units 210 are arranged in rows along the first direction F1 and in columns along the second direction F2; the display panel 10 is in the first stretched state, the main light-emitting units 210 in the first column are in the light-emitting state, and the first stretched light-emitting units 221 in the remaining columns are all in the light-emitting state. Of course, the present application is not limited thereto.

[0054] Alternatively, the display panel 10 is in the first stretched state, and all the first stretched light-emitting units 221 are in a light-emitting state.

[0055] Since the main light-emitting units 210 and the first stretched light-emitting units 221 are arranged alternately along the first direction F1, the main light-emitting units 210 and the corresponding first stretched light-emitting units 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 units 221 can be roughly displaced along the first direction F1 to the position of the corresponding main light-emitting units 210 in the unstretched state of the display panel 10, so that the first stretched light-emitting units 221 in the first stretched state can compensate for the light-emitting state of the corresponding main light-emitting units 210 in the unstretched state, thereby facilitating the plurality of first stretched light-emitting units 221 in the light-emitting state to roughly maintain the display effect of the corresponding plurality of main light-emitting units 210 in the unstretched state, thereby facilitating 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 a light emitting state.

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

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

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

[0060] Since 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 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 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, so that when the display panel 10 is in the first stretched state, the spacing between the adjacent first stretched light-emitting units 221 along the first direction F1 can still maintain the original spacing, that is, it is substantially equal to the spacing between the 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 Therefore, the arrangement of the plurality of first stretched light-emitting units 221 in the first stretched state roughly maintains the arrangement of the plurality of main light-emitting units 210 in the unstretched state, which is beneficial for the plurality of first stretched light-emitting units 221 in the light-emitting state to roughly maintain the display effect of the corresponding plurality of main light-emitting units 210 in the unstretched state, which is beneficial for improving the display effect of the display panel 10 in the first stretched state.

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

[0062] For example, the first preset stretching ratio 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 main light emitting units 210 adjacent to each other along the first direction F1 is a, the first preset stretching rate is C1, the first distance is J1, and J1=a*C1.

[0065] In this way, J1 can be set according to the spacing between two main light-emitting units 210 adjacent 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 displaced 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 multiple first stretched light-emitting units 221 in the first stretched state roughly maintains the arrangement of the multiple main light-emitting units 210 in the unstretched state, which is beneficial for the multiple first stretched light-emitting units 221 in the light-emitting state to roughly maintain the display effect of the corresponding multiple main light-emitting units 210 in the unstretched state, which is beneficial for 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 contraction light-emitting units spaced apart on the stretchable substrate 100, the contraction light-emitting units include a first contraction light-emitting unit 222, and a first contraction light-emitting unit 222 is disposed between two main light-emitting units 210 adjacent along the second direction F2. When the stretchable substrate 100 is stretched along the first direction F1 at a first stretching rate to a first stretched state, the stretchable substrate 100 is contracted along the second direction F2 at a first contraction rate to a first contracted state, at least part of the first contraction light-emitting unit 222 is in a light-emitting state, and the second direction F2 is perpendicular to the first direction F1.

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

[0068] It may 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 to a first shrinkage state at a first shrinkage rate along the width direction of the stretchable substrate 100, and at least part of the first stretching light-emitting unit 221 and at least part of the first shrinkage light-emitting unit 222 are in a 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 of the stretchable substrate 100, the stretchable substrate 100 will shrink to a first shrinkage state at a first shrinkage rate along the length direction of the stretchable substrate 100, and at least part of the first stretching light-emitting unit 221 and at least part of the first shrinkage light-emitting unit 222 are in a light-emitting state.

[0070] Regardless of which one, 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, so that the first stretched light-emitting unit 221 in the first stretched state can compensate for the luminous state of the corresponding main light-emitting unit 210 in the unstretched state; the stretchable substrate 100 can also be contracted to the first contracted state at a first contraction rate 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 corresponding main light-emitting unit 210 when the display panel 10 is in the unstretched state, so that the first contracted light-emitting unit 222 in the first stretched state and in the first contracted state can compensate for the luminous state of the corresponding main light-emitting unit 210 in the unstretched state. In this way, the multiple first stretched light-emitting units 221 and the multiple first contracted light-emitting units 222 in the luminous state can roughly maintain the display effect of the corresponding multiple main light-emitting units 210 in the unstretched state, which is beneficial to improve the display effect of the display panel 10 in the first stretched state.

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

[0072] The second spacing may 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. 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 main light emitting units 210 adjacent to each other along the second direction F2 is b, the first preset shrinkage rate is D1, the second distance is J2, and 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] In this way, J2 can be set according to the spacing along the second direction F2 between two main light-emitting units 210 adjacent to each other 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 shrinkable 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 main light-emitting unit 210 in the first column and the multiple first shrinkable 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 the main light-emitting unit 210 in the first row and the multiple first shrinkable 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), which is beneficial to improve 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 stretching state, the main light emitting units 210 in the first row are in a light emitting state, and the first stretching 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 contracting 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 units 221 are displaced along the first direction F1 to the position of the corresponding main light-emitting units 210 when the display panel 10 is in the unstretched state, so that the intervals along the first direction F1 between adjacent first stretched light-emitting units 221 are equal to the intervals along the first direction F1 between the main light-emitting units 210 and the adjacent first stretched light-emitting units 221, and can be roughly equal to the intervals along the first direction F1 between the adjacent main light-emitting units 210 when the display panel 10 is in the unstretched state, so that 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 in the first stretched state roughly maintains the arrangement of the multiple main light-emitting units 210 in the unstretched state; in addition, since the spacing between the main light-emitting unit 210 and the adjacent first shrinking light-emitting unit 222 along the second direction F2 is positively correlated with the first preset shrinkage rate, 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 corresponding main light-emitting unit 210 when the display panel 10 is in the unstretched state, so that the interval between adjacent first contracted light-emitting units 222 along the second direction F2 is equal to the interval between the main light-emitting unit 210 and the adjacent first contracted light-emitting unit 222 along the second direction F2, and can be roughly 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, so that 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 in the first stretched state roughly maintains the arrangement of multiple main light-emitting units 210 in the unstretched state; this is conducive 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 rows along the first direction F1 and in columns along the second direction F2, the display panel 10 is in a first stretching state, the main light emitting units 210 in the first column are in a light emitting state, and the first stretching 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 contracting 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 roughly maintains the arrangement of the 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 roughly maintains the arrangement of the multiple main light-emitting units 210 in the unstretched state; this is conducive to improving 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 the 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 the 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.

[0082] 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 stretchable light-emitting unit 221 on the stretchable substrate 100 are constructed as the same figure.

[0083] In this way, the first stretched light-emitting unit 221 can be better utilized 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 corresponding multiple main light-emitting units 210 in the unstretched state, which is beneficial to improve 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 contraction light-emitting unit 222 on the stretchable substrate 100 are constructed as the same figure.

[0085] In this way, the first shrinkable light-emitting unit 222 can be better utilized 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 shrinkable 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 the main light-emitting unit 210 in the first row and the multiple first shrinkable 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), which is beneficial to improve the display effect of the display panel 10 in the first stretched state.

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

[0087] This is beneficial to improving 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 part of the second stretched light-emitting unit 231 is in a light-emitting state.

[0089] It may be that part of the second stretched light-emitting units 231 is in the light-emitting state, for example, the main light-emitting units 210 are arranged in columns along the first direction F1, and part of the columns of the second stretched light-emitting units 231 are in the light-emitting state; for another example, the main light-emitting units 210 are arranged in rows along the first direction F1, and part of the rows of the second stretched light-emitting units 231 are in the light-emitting state. Of course, the present application is not limited thereto.

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

[0091] In this embodiment, along the second direction F2, the spacing between the main light-emitting unit 210 and the adjacent second stretch light-emitting unit 231 is a third spacing, and the third spacing is J3, J3 is positively correlated with the second preset stretching rate, and 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 along the second direction F2 and the size of the stretchable substrate 100 along the second direction F2 in an unstretched state, and the percentage relative to the size of the stretchable substrate 100 along the second direction F2 in an 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 the same column along the second direction F2. Taking the main light-emitting unit 210 and the corresponding second stretched light-emitting unit 231 as an example of being located in the same row along the second direction F2, 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, so that when the display panel 10 is in the second stretched state, the spacing between the adjacent second stretched light-emitting units 231 along the second direction F2 can still maintain the original spacing, that is, it is substantially equal to the spacing between the adjacent main light-emitting units 210 in the unstretched state along the second direction F2 (which can be combined with Figure 2 and Figure 4 Therefore, the arrangement of the plurality of second stretched light-emitting units 231 in the second stretched state roughly maintains the arrangement of the plurality of main light-emitting units 210 in the unstretched state, which is beneficial for the plurality of second stretched light-emitting units 231 in the light-emitting state to roughly maintain the display effect of the corresponding plurality of main light-emitting units 210 in the unstretched state, which is beneficial for improving the display effect of the display panel 10 in the second stretched state.

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

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

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

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

[0097] In this way, J3 can be set according to the second preset stretching rate. In this way, 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 corresponding main light-emitting unit 210 when the display panel 10 is in the unstretched state, so that the arrangement of the multiple second stretched light-emitting units 231 in the second stretched state roughly maintains the arrangement of the multiple main light-emitting units 210 in the unstretched state, which is beneficial for the multiple second stretched light-emitting units 231 in the light-emitting state to roughly maintain the display effect of the corresponding multiple main light-emitting units 210 in the unstretched state, which is beneficial for 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 as the same figure.

[0099] In this way, the second stretched light-emitting unit 231 can be better utilized 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 corresponding multiple main light-emitting units 210 in the unstretched state, which is beneficial to improve 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, and the plurality of contraction light-emitting units include a first contraction light-emitting unit 222 and a second contraction light-emitting unit 232. A first contraction light-emitting unit 222 is provided between two main light-emitting units 210 adjacent along the second direction F1, and a second contraction light-emitting unit 232 is provided between two main light-emitting units 210 adjacent along the first direction F1. When the stretchable substrate is stretched to the second stretched state at a second stretching rate along the second direction F2, the stretchable substrate 100 is contracted to the second contraction state at the second contraction rate along the first direction, and at least part of the second stretched light-emitting unit 231 and at least part of the second contraction light-emitting unit 232 are in a light-emitting state.

[0101] Since a second shrinkable light-emitting unit 232 is provided between two main light-emitting units 210 adjacent to each other along the first direction F1, when the display panel 10 is in the second stretched state, the stretchable substrate 100 shrinks to the second shrinkable state at a second shrinkage rate along the first direction F1, and the second shrinkable light-emitting unit 232 can be displaced to the position of the corresponding main light-emitting unit 210 when the display panel 10 is in the unstretched state, so that the second shrinkable light-emitting unit 232 in the second stretched state and in the second shrinkable state can compensate for the light-emitting state of the corresponding main light-emitting unit 210 in the unstretched state, which is beneficial to improve the display effect of the display panel 10 in the second stretched state.

[0102] In this embodiment, along the first direction F1, the spacing between the main light-emitting unit 210 and the adjacent second shrinkage light-emitting unit 232 is a fourth spacing, and the fourth spacing is J4. The fourth spacing is positively correlated with the second preset shrinkage rate, and the second preset shrinkage rate is the difference between the size of the stretchable substrate 100 along the first direction F1 in the unstretched state and the size of the stretchable substrate 100 along the first direction F1 after being stretched by the second preset size along the second direction F2, which is a percentage relative to the size of the stretchable substrate 100 along the first direction F1 in the 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, thereby helping to improve 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 main light emitting units 210 adjacent to each other 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] In this way, 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 shrinkable 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 display panel 10 in the unstretched state, so that the arrangement of the main light-emitting units 210 in the first row and the second shrinkable light-emitting units 232 in the remaining rows (or the main light-emitting units 210 in the first column and the second shrinkable light-emitting units 232 in the remaining columns) in the second stretched state roughly maintains the arrangement of the multiple main light-emitting units 210 in the unstretched state, which is beneficial to improve 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 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 corresponding main light-emitting unit 210 when the display panel 10 is in the unstretched state, so that the interval between adjacent second stretched light-emitting units 231 along the second direction F2 is equal to the interval between the main light-emitting unit 210 and the adjacent second stretched light-emitting unit 231 along the second direction F2, and can be roughly 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, so that 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 in the second stretched state roughly maintains the arrangement of multiple main light-emitting units 210 in the unstretched state; in addition, since the spacing between the main light-emitting unit 210 and the adjacent second shrinking light-emitting unit 232 is positively correlated with the second preset shrinkage rate, when the display panel 10 is in the second stretched state, the spacing between the main light-emitting unit 210 and the adjacent second shrinking light-emitting unit 232 is positively correlated with the second preset shrinkage rate. 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 display panel 10 in the unstretched state, so that the interval between adjacent second contracted light-emitting units 232 along the first direction F1 is equal to the interval between the main light-emitting unit 210 and the adjacent second contracted light-emitting unit 232 along the first direction F1, and can be roughly equal to the interval between adjacent main light-emitting units 210 along the first direction F1 when the display panel 10 is in the unstretched state, so that 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 in the second stretched state roughly maintains 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, a plurality of main light-emitting units 210 are arranged in rows along the first direction F1 and in columns along the second direction F2, the display panel 10 is in the second stretched state, the main light-emitting units 210 in the first row are in the light-emitting state, and the second stretched light-emitting units 231 in the remaining rows are in the light-emitting state; the main light-emitting units 210 in the first column are in the light-emitting state, and the second contracted light-emitting units 232 in the remaining columns are in the 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 display panel 10 in the unstretched state, so that the arrangement of 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 the 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 display panel 10 in the unstretched state, so that the arrangement of 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 the multiple main light-emitting units 210 in the unstretched state; this is conducive to improving 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 the 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 the 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.

[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 as the same figure.

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

[0115] Optionally, the second stretching light emitting unit 231 and the second shrinking light emitting unit 232 belong to the same light emitting unit.

[0116] This is beneficial to improving 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 stretched light emitting unit 221 , and the second contracted 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 disposed between the first stretching light emitting unit 221 and the adjacent second shrinking light emitting unit 232 .

[0120] It is convenient to arrange the main light-emitting unit 210, the first stretch light-emitting unit 221 and the second shrink light-emitting unit 232 regularly on the stretchable substrate 100, for example, it is convenient to arrange the multiple first stretch light-emitting units 221 in an array according to the arrangement rule of the multiple main light-emitting units 210, and it is also convenient to arrange the multiple second shrink light-emitting units 232 in an array according to the arrangement rule of the multiple main light-emitting units 210.

[0121] In some embodiments, the main light-emitting unit 210 , the first contraction light-emitting unit 222 , and the second extension 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 disposed between the first contraction light emitting unit 222 and the adjacent second extension light emitting unit 231 .

[0123] It is convenient to arrange 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 regularly on the stretchable substrate 100. For example, it is convenient to arrange the multiple first contracted light-emitting units 222 in an array according to the arrangement rule of the multiple main light-emitting units 210, and it is also convenient to arrange the multiple second stretched light-emitting units 231 in an array according to the arrangement rule of the multiple main light-emitting units 210.

[0124] For example, the spacing between two main light-emitting units 210 adjacent along the first direction F1 is equal to the spacing between two first contraction light-emitting units 222 adjacent along the first direction F1, and is also equal to the spacing between two second stretch light-emitting units 231 adjacent along the first direction F1. The spacing between two main light-emitting units 210 adjacent along the second direction F2 is equal to the spacing between two first contraction light-emitting units 222 adjacent along the second direction F2, and is also equal to the spacing between two second stretch light-emitting units 231 adjacent 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 arranged on opposite sides of the main light-emitting unit 210 along the first direction F1, and the first contracted light-emitting unit 222 and the second stretched light-emitting unit 231 are arranged on opposite sides of the main light-emitting unit 210 along the second direction F2.

[0126] It can be understood that 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 are arranged around the main light-emitting unit 210 at intervals.

[0127] It is convenient to arrange 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 regularly on the stretchable substrate 100. For example, it is convenient for multiple first stretched light-emitting units 221 to be arranged in an array according to the arrangement rule of multiple main light-emitting units 210, and it is also convenient for multiple first contracted light-emitting units 222 to be arranged in an array according to the arrangement rule of multiple main light-emitting units 210. It is also convenient for multiple second stretched light-emitting units 231 to be arranged in an array according to the arrangement rule of multiple main light-emitting units 210, and it is also convenient for multiple second contracted light-emitting units 232 to be arranged in an array according to the arrangement rule 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 on the stretchable substrate 100 at equal intervals, and a plurality of first stretch light-emitting units 221 are arranged on the stretchable substrate 100 at equal intervals. In other words, the interval between two adjacent main light-emitting units 210 is equal to the interval between two adjacent first stretch light-emitting units 221.

[0130] This is beneficial to improving the display uniformity of the display panel 10 in the first stretched state.

[0131] In some embodiments, the spacing between two main light-emitting units 210 adjacent along the first direction F1 is equal to the spacing between two first contraction light-emitting units 222 adjacent along the first direction F1, and the spacing between two main light-emitting units 210 adjacent along the second direction F2 is equal to the spacing between two first contraction light-emitting units 222 adjacent 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 contraction light-emitting units 222 are arranged at equal intervals on the stretchable substrate 100. That is, the spacing between two adjacent main light-emitting units 210 is equal to the spacing between two adjacent first contraction light-emitting units 222.

[0133] This is beneficial to improving 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 on the stretchable substrate 100 at equal intervals, and a plurality of second stretch light-emitting units 231 are arranged on the stretchable substrate 100 at equal intervals. In other words, the interval between two adjacent main light-emitting units 210 is equal to the interval between two adjacent second stretch light-emitting units 231.

[0136] This is beneficial to improving the display uniformity of the display panel 10 in the second stretched state.

[0137] In some embodiments, the spacing between two main light-emitting units 210 adjacent along the first direction F1 is equal to the spacing between two second contraction light-emitting units 232 adjacent along the first direction F1, and the spacing between two main light-emitting units 210 adjacent along the second direction F2 is equal to the spacing between two second contraction light-emitting units 232 adjacent 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 contraction light emitting units 232 are arranged at equal intervals on the stretchable substrate 100. That is, the spacing between two adjacent main light emitting units 210 is equal to the spacing between two adjacent second contraction light emitting units 232.

[0139] This is beneficial to improving the display uniformity of the display panel 10 in the second stretched state.

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

[0141] The display panel 10 is in a diagonal stretching state, that is, the display panel 10 is stretched along the first direction F1 and the second direction F2, respectively. At this time, at least part of the first stretched light-emitting unit 221 and at least part of the second stretched light-emitting unit 231 emit light. In this way, when the display panel 10 is in a diagonal stretching 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 corresponding to the display panel 10 in the unstretched state (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), so that the first stretched light-emitting unit 221 and the corresponding second stretched light-emitting unit 231 form a light-emitting unit combination, and the spacing between adjacent light-emitting unit combinations in the diagonal stretching state can be substantially equal to the spacing between adjacent main light-emitting units 210 in the unstretched state, so that the display effect of the display panel 10 in the diagonal stretching state is consistent with the display effect of the display panel 10 in the unstretched state, which is conducive to improving the display effect of the display panel 10 in the diagonal stretching state.

[0142] In this embodiment, it can be that 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 diagonally 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 in a light-emitting state; and 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 in a light-emitting state. It can also be that a plurality of main light-emitting units 210 are arranged in rows along the first direction F1 and in columns along the second direction F2; the display panel 10 is in a diagonally 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 in a light-emitting state; and 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 in a light-emitting state.

[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 display panel 10 in the unstretched state. The first stretched light-emitting unit 221 and the corresponding second stretched light-emitting unit 231 can form a light-emitting unit combination, and the spacing between adjacent light-emitting unit combinations in the diagonal stretched state can be roughly equal to the spacing between adjacent main light-emitting units 210 in the unstretched state, thereby making the display effect of the display panel 10 in the diagonal stretched state tend to be consistent with the display effect of the display panel 10 in the unstretched state, which is beneficial to improve the display effect of the display panel 10 in the diagonal stretched state.

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

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

[0146] Optionally, the first projection figure and the second projection figure are both polygonal or circular.

[0147] Optionally, the first projection figure and the second projection figure are both regular polygons or circles. For example, the first projection figure and the second projection figure are both 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 facilitating improving the display effect of the display panel 10 in the first stretched state.

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

[0150] Optionally, the first projection figure and the third projection figure are both regular polygons or circles. For example, the first projection figure and the third projection figure are both squares.

[0151] In this way, it 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 on the stretchable substrate 100 is a fourth projection figure, and both the first projection figure and the fourth projection figure are polygonal or circular.

[0153] Optionally, the first projection figure and the fourth projection figure are both regular polygons or circles. For example, the first projection figure and the fourth projection figure are both squares.

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

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

[0156] Optionally, the first projection figure and the fifth projection figure are both regular polygons or circles. For example, the first projection figure and the fifth projection figure are both squares.

[0157] In this way, it is more conducive to improving the display effect of the display panel 10 in the second stretched state.

[0158] In some embodiments, the main light-emitting unit 210 and the first stretched light-emitting unit 221 each include a first sub-pixel 201, a second sub-pixel 202, and a third sub-pixel 203 (eg, Figure 5 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 luminous colors, the display effect of the main light-emitting unit 210 and the first stretched light-emitting unit 221 can be improved, thereby improving the display effect of the display panel 10 .

[0161] The main light emitting unit 210 and the first stretched light emitting unit 221 can realize color display.

[0162] Optionally, the first contraction light-emitting unit 222 includes a first sub-pixel 201, a second sub-pixel 202 and a third sub-pixel 203 having 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 luminous colors, the display effect of the first contracted luminous 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 emitting different colors of light.

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

[0166] Optionally, the second contraction light-emitting unit 232 includes a first sub-pixel 201, a second sub-pixel 202 and a third sub-pixel 203 having 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 luminous colors, the display effect of the second contracted light-emitting 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 , wherein 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 may 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 water vapor, thereby improving the display effect and reliability of the display panel 10 .

[0170] An embodiment of the present 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 surfaces of any shape. 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-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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 above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: Stretchable substrate; and A plurality of light-emitting units, the plurality of light-emitting units comprising a plurality of main light-emitting units arranged in an array on the stretchable substrate, and a plurality of stretch light-emitting units arranged at intervals on the stretchable substrate, the stretch light-emitting units comprising first stretch 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 along a first direction at a first stretching rate to the first stretched state, at least part of the first stretched light-emitting units are in a light-emitting state.

2. The display panel according to claim 1, characterized in that: 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.

3. The display panel according to claim 2, 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 a first preset stretching rate, which is the difference between the size of the stretchable substrate along the first direction after being stretched by a first preset size along the first direction and the size of the stretchable substrate along the first direction in an unstretched state, expressed as a percentage of the size of the stretchable substrate along the first direction in an unstretched state.

4. The display panel according to claim 2, characterized in that: The plurality of light-emitting units include a plurality of contraction light-emitting units arranged at intervals on the stretchable substrate, the contraction light-emitting units include a first contraction light-emitting unit, and a first contraction light-emitting unit is arranged between two adjacent main light-emitting units along the second direction; When the stretchable substrate is stretched along a first direction at a first stretching rate to the first stretching state, the stretchable substrate is contracted along a second direction at a first contraction rate to the first contraction state, at least part of the first stretched light-emitting units and at least part of the first contracted light-emitting units are in a light-emitting state, and the second direction is perpendicular to the first direction; 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.

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

6. The display panel according to claim 4, characterized in that: The first direction is the length direction of the stretchable substrate, the second direction is the width direction of the stretchable substrate, and the 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 stretching state, the main light-emitting units in the first row are in a light-emitting state, and the first stretching light-emitting units in the remaining rows are in a light-emitting state; the main light-emitting units in the first column are in a light-emitting state, and the first contraction light-emitting units in the remaining columns are in a light-emitting state; or, The first direction is the width direction of the stretchable substrate, the second direction is the length direction of the stretchable substrate, and a plurality of the main light-emitting units are arranged in rows along the first direction and in columns along the second direction; the display panel is in the first stretching state, the main light-emitting units in the first column are in a light-emitting state, and the first stretching light-emitting units in the remaining columns are all in a light-emitting state; the main light-emitting units in the first row are in a light-emitting state, and the first contracting light-emitting units in the remaining rows are in a light-emitting state.

7. The display panel according to claim 4, characterized in that: The plurality of contractible light-emitting units further include a second contractible light-emitting unit, and a second contractible light-emitting unit is disposed 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 shrinking light-emitting unit are arranged alternately along the first direction; 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; Optionally, the stretch light-emitting unit includes a second stretch light-emitting unit, and the main light-emitting unit, the first contraction light-emitting unit and the second stretch light-emitting unit are alternately arranged along the second direction; Optionally, along the second direction, a main light emitting unit is provided between the first contraction light emitting unit and the adjacent second extension light emitting unit; Optionally, a plurality of the main light-emitting units, a plurality of the first stretched light-emitting units, a plurality of the first contracted light-emitting units, a plurality of the second stretched light-emitting units and a plurality of the second contracted light-emitting units are arranged to form a plurality of repeating units; Each of the repeating units includes a main light-emitting unit, a first stretched light-emitting unit, a first contracted light-emitting unit, a second stretched light-emitting unit and a second contracted light-emitting unit. In the repeating unit, the first stretched light-emitting unit and the second contracted light-emitting unit are arranged on opposite sides of the main light-emitting unit along the first direction, and the first contracted light-emitting unit and the second stretched light-emitting unit are arranged on opposite sides of the main light-emitting unit along the second direction.

8. The display panel according to claim 1 or 2, characterized in that: 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; When the stretchable substrate is stretched to a diagonally stretched state at an inclined stretching rate, at least a portion of the first stretched light-emitting unit and at least a portion of the second stretched light-emitting unit are both in a light-emitting state; Preferably, when the stretchable substrate is stretched to a diagonally stretched state at an inclined stretching rate, all the first stretched light-emitting units and all the second stretched light-emitting units are in a light-emitting state.

9. The display panel according to any one of claims 1 to 8, 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 projection figure and the second projection figure are constructed as the same figure; Optionally, the first projection figure and the second projection figure are both polygonal or circular; Optionally, the first projection figure and the second projection figure are both regular polygons or circles; The main light-emitting unit and the first stretched light-emitting unit each include a first sub-pixel, a second sub-pixel and a third sub-pixel with different light-emitting colors; 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 another of the first sub-pixel, the second sub-pixel and the third sub-pixel is a blue sub-pixel.

10. A display device, characterized in that: Comprising a display panel as described in any one of claims 1 to 9.

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