CN116033802A - Stretchable display substrate and display device - Google Patents

Abstract

The application provides a stretchable display substrate and a display device. The stretchable display substrate comprises a substrate, a plurality of display units and a plurality of connecting wires; a plurality of open hole patterns are distributed on the substrate, and a plurality of bridges capable of enclosing islands are formed between at least part of adjacent open hole patterns in the plurality of open hole patterns; at least one display unit is arranged on each island; the plurality of connecting wires are respectively connected between the plurality of display units on the island and are respectively arranged on the plurality of bridges; at least part of the edges of the open hole patterns are provided with flexible blocking structures positioned on the substrate, and the flexible blocking structures comprise at least one flexible film layer. According to the stretchable display substrate, the flexible blocking structure with at least one flexible film layer is arranged on the edge of the open hole pattern, so that the strain of the inorganic film layer in screen stretching is reduced, and the display effect of the flexible stretchable display in repeated stretching is ensured.

Description

Stretchable display substrate and display device

Technical Field

The application relates to the technical field of line recognition, in particular to a stretchable display substrate and a display device.

Background

The flexible display panel has the advantages of being foldable, convenient to carry, wide in application range and the like, and is paid attention to by more and more people, and particularly the stretchable display panel brings brand-new viewing and use experience to users. However, the existing stretchable display panel is not stretchable enough to meet the needs of people, resulting in limited applications of the stretchable flexible display panel.

Disclosure of Invention

According to a first aspect of embodiments of the present application, there is provided a stretchable display substrate comprising:

a substrate, on which a plurality of open hole patterns are distributed, wherein a plurality of bridges capable of enclosing islands are formed between at least part of adjacent open hole patterns in the plurality of open hole patterns;

a plurality of display units, at least one display unit is arranged on each island;

the plurality of connecting wires are respectively connected between the plurality of display units on the island and are respectively arranged on the plurality of bridges;

at least part of the edges of the open hole patterns are provided with flexible blocking structures positioned on the substrate, and the flexible blocking structures comprise at least one flexible film layer.

In some embodiments, the flexible barrier structure includes a first flexible film layer over the substrate base plate.

In some embodiments, the display unit includes an encapsulation layer including an organic encapsulation layer, the first flexible film layer being the same layer of material as the organic encapsulation layer.

In some embodiments, the materials of the first flexible film layer and the organic encapsulation layer include an optical cement material.

In some embodiments, the encapsulation layer further includes a first inorganic encapsulation layer and a second inorganic encapsulation layer on opposite surfaces of the organic encapsulation layer, and the flexible barrier structure further includes a first inorganic layer and a second inorganic layer on opposite surfaces of the first flexible film layer, the first inorganic layer and the first inorganic encapsulation layer being the same material, and the second inorganic layer and the second inorganic encapsulation layer being the same material.

In some embodiments, the flexible barrier structure includes a second flexible film layer positioned between the first flexible film layer and the substrate base plate.

In some embodiments, the display unit has a driving circuit layer, a light emitting layer, and a spacer layer sequentially disposed between the substrate and the encapsulation layer, wherein the driving circuit layer and the light emitting layer each include an organic layer, and the second flexible film layer is the same material as at least one of the organic layer of the driving circuit layer, the organic layer of the light emitting layer, and the spacer layer.

In some embodiments, the organic layer of the drive circuit layer includes a first planarization layer and a second planarization layer, the light emitting layer includes a pixel defining layer, and the second flexible film layer is the same material as at least one of the first planarization layer, the second planarization layer, the pixel defining layer, and the spacer layer.

In some embodiments, the substrate has a slot located around the aperture pattern and extending through a portion of the thickness of the substrate, the slot opening facing the side of the flexible barrier structure opposite the flexible barrier structure, and a third flexible film layer is disposed in the slot.

In some embodiments, the flexible barrier structure has a barrier sidewall adjacent to a side of the aperture pattern, the aperture pattern having an aperture sidewall, the barrier sidewall being flush with the aperture sidewall.

In some embodiments, the flexible barrier structure has a barrier sidewall on a side of the aperture pattern adjacent to the aperture pattern, the aperture pattern has an aperture sidewall, and the barrier sidewall is retracted toward a side facing away from the aperture pattern to form a notch portion at an edge of the aperture pattern.

In some embodiments, the notched portion has a reduced dimension of 2 μm to 10 μm.

According to a second aspect of embodiments of the present application, there is provided a display device comprising a stretchable display substrate as described above.

The main technical effects achieved by the embodiment of the application are as follows:

according to the stretchable display substrate provided by the embodiment of the application, the flexible blocking structure with at least one flexible film layer is arranged on the substrate through the arrangement of the edge of the open hole pattern, so that the strain of the inorganic film layer during stretching of the screen is reduced, and the display effect of the flexible stretchable display in repeated stretching is ensured.

Drawings

Fig. 1 is a display device provided in an exemplary embodiment of the present application;

FIG. 2 is a top view of a stretchable display substrate provided in an exemplary embodiment of the present application;

FIG. 3 is a schematic illustration of a cross-sectional structure of a stretchable display substrate at A-A shown in FIG. 2 according to an exemplary embodiment of the present application;

FIG. 4 is a schematic view of a partial cross-sectional structure of another stretchable display substrate according to an exemplary embodiment of the present application;

FIG. 5 is a schematic view of a partial cross-sectional structure of another stretchable display substrate according to an exemplary embodiment of the present application;

FIG. 6 is a schematic view of a partial cross-sectional structure of another stretchable display substrate according to an exemplary embodiment of the present application;

FIG. 7 is a schematic view of a partial cross-sectional structure of another stretchable display substrate according to an exemplary embodiment of the present application;

FIG. 8 is a schematic view of a partial cross-sectional structure of another stretchable display substrate according to an exemplary embodiment of the present application;

FIG. 9 is a schematic view of a partial cross-sectional structure of another stretchable display substrate according to an exemplary embodiment of the present application;

FIG. 10 is a schematic view of a partial cross-sectional structure of another stretchable display substrate according to an exemplary embodiment of the present application;

fig. 11 is a schematic view of a partial cross-sectional structure of yet another stretchable display substrate according to an exemplary embodiment of the present application.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first message may also be referred to as a second message, and similarly, a second message may also be referred to as a first message, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.

The embodiment of the application provides a stretchable display substrate and a display device. The stretchable display substrate comprises a substrate, a plurality of display units and a plurality of connecting wires; a plurality of open hole patterns are distributed on the substrate, and a plurality of bridges capable of enclosing islands are formed between at least part of adjacent open hole patterns in the plurality of open hole patterns; at least one display unit is arranged on each island; the plurality of connecting wires are respectively connected between the plurality of display units on the island and are respectively arranged on the plurality of bridges; at least part of the edges of the open hole patterns are provided with flexible blocking structures positioned on the substrate, and the flexible blocking structures comprise at least one flexible film layer. According to the stretchable display substrate, the flexible blocking structure with at least one flexible film layer is arranged on the edge of the open hole pattern, so that the strain of the inorganic film layer in screen stretching is reduced, and the display effect of the flexible stretchable display in repeated stretching is ensured.

The stretchable display substrate and the display device according to the embodiments of the present application will be described in detail with reference to fig. 1 to 11. The features of the embodiments described below can be supplemented or combined with one another without conflict.

Referring to fig. 1, and as necessary in conjunction with fig. 2-11, a display device 100 is shown, the display device 100 including a stretchable display substrate 20'.

The display device 100 may further include a housing 10', and the stretchable display substrate 20' may be embedded in the housing 10 '.

Referring to fig. 2, 3 and 11, in some embodiments, the stretchable display substrate 20' includes a substrate 10, a display unit 1003 and a plurality of connection wires. The substrate 10 is distributed with a plurality of hole patterns 110, and one or more display units 1003 are disposed on each island 120 of a plurality of bridges 130 formed between at least some adjacent hole patterns 110 in the plurality of hole patterns 110 and capable of enclosing the island 120. The connection wires are respectively connected between the display units 1003 on the island 120 and are respectively disposed on the bridges 130. At least part of the edges of the aperture pattern 110 is provided with a flexible barrier structure 1001 on the substrate base plate 10, the flexible barrier structure 1001 comprising at least one flexible film layer.

The connection wiring is understood to be a source/drain wiring, a gate wiring, or the like that can be connected to the display unit 1003.

The open cell pattern 110 is a pattern-like open cell structure comprising laterally extending open cells and longitudinally extending open cells formed at predetermined locations.

The display unit 1003 is understood to mean a pixel unit or a sub-pixel unit and its corresponding connected driving circuit structure (or corresponding thin film transistor).

Referring to fig. 3, in some embodiments, the flexible barrier structure 1001 includes a first flexible membrane layer 102 over the substrate base plate 10.

As shown in fig. 3 and 11, in this embodiment, the display unit 1003 includes a driving circuit layer 301, a light emitting layer 201, a spacer layer 401, and a packaging layer 501 sequentially disposed between the substrate 10 and the packaging layer. The encapsulation layer 501 includes the organic encapsulation layer 80, and the first flexible film layer 102 and the organic encapsulation layer 80 are formed in the same layer and material, that is, in the same manufacturing process.

In some embodiments, the materials of the first flexible film layer 102 and the organic encapsulation layer 80 include an optical cement material (i.e., a light sensitive material that can be patterned using a photolithographic process). Accordingly, the first flexible film layer 102 and the organic encapsulation layer 80 may be formed by using a photolithography process, which is advantageous in saving a manufacturing process.

Compared with the mode of forming the organic packaging layer by adopting the technologies such as ink-jet printing and the like in the related art, the organic packaging layer and the first flexible film layer 102 can realize more refined patterns by adopting the optical adhesive material, so that the etching precision is higher, and the precise etching of the first flexible film layer 102 at the outer edge of the opening pattern is particularly facilitated.

In some embodiments, as further shown in fig. 2 and 11, the encapsulation layer further includes a first inorganic encapsulation layer 70 and a second inorganic encapsulation layer 80 disposed on opposite surfaces (i.e., upper and lower surfaces in fig. 11) of the organic encapsulation layer 80, the flexible barrier structure 1001 further includes a first inorganic layer 104 and a second inorganic layer 105 disposed on opposite surfaces (i.e., upper and lower surfaces in fig. 2) of the first flexible film layer 102, and the first inorganic layer 104 may be the same material as the first inorganic encapsulation layer 70, and the second inorganic layer 105 may be the same material as the second inorganic encapsulation layer 80. That is, the first inorganic layer 104 may be the same material as the first inorganic encapsulation layer 70, and the second inorganic layer 105 may be the same material as the second inorganic encapsulation layer 80.

Of course, in other embodiments, the first flexible film layer may also be a different layer of material than the first organic encapsulation layer 80. The first inorganic layer 104 may also be a different material than the first inorganic encapsulation layer 70, and the second inorganic layer 105 may also be a different material than the second inorganic encapsulation layer 80.

The driving circuit layer 301 includes a pixel driving circuit for driving the light emitting structure. The pixel circuit includes a thin film transistor 3001. The thin film transistor 3001 includes an active layer 311, a gate electrode 312 located on a side of the active layer 311 facing away from the substrate 10, a first electrode 313, and a second electrode 314. One of the first electrode 313 and the second electrode 314 is a source electrode, and the other is a drain electrode. The pixel driving circuit may also include a capacitor (not shown).

The driving circuit layer further includes a gate insulating layer 316, an interlayer insulating layer 315, a first planarization layer 30, a signal trace layer 317, a second planarization layer 40, a first passivation layer 50, and a second passivation layer 60. The gate insulating layer 316 covers the active layer 311. The interlayer insulating layer 315 is located at a side of the gate electrode 312 facing away from the substrate 10, and the first electrode 313 and the second electrode 314 are electrically connected to the active layer 311 through a via hole penetrating the gate insulating layer 316 and the interlayer insulating layer 315. The first planarization layer 30 is located on a side of the first electrode 313 and the second electrode 314 facing away from the substrate 10, and covers the exposed interlayer insulating layer 315. The signal trace layer 317 is located on a side of the first planarization layer 30 facing away from the substrate 10, and the second planarization layer 40 covers the signal trace layer 317 and the exposed first planarization layer 30. The first passivation layer 50 and the second passivation layer 60 are sequentially located on the second planarization layer 40. The first passivation layer 50 and the second passivation layer 60 may have a through hole penetrating through the upper and lower surfaces to realize the functions of exhaust.

In one embodiment, the light emitting layer 201 includes a plurality of light emitting structures 2001 arranged at intervals, and the light emitting colors of the respective light emitting structures 2001 of the light emitting layer 201 may be the same, for example, the light emitting colors of the respective light emitting structures 2001 of the light emitting layer 201 may be blue. The light of the same color emitted from the light emitting layer 201 is converted into light of a plurality of colors when passing through the color conversion layer, thereby realizing color display of the display panel.

In one embodiment, the light emitting structure 2001 is located at a side of the second planarization layer 40 facing away from the substrate base plate 10. The light emitting structure 2001 includes a first electrode 21, an organic light emitting material layer 22 located on a side of the first electrode 21 facing away from the substrate 10, and a second electrode 23 located on a side of the organic light emitting material layer 22 facing away from the substrate 10, the first electrode 21 and the second electrode 23 being in direct contact with the organic light emitting material layer 22, respectively. The first electrode 21 may be an anode and the second electrode 23 may be a cathode. The second electrode 23 of each light emitting structure 2001 may be an electrode of the entire surface connected in one piece. The first electrode 21 is electrically connected to the first electrode 313 of the thin film transistor 3001 through a via hole penetrating the second planarization layer 40, the first passivation layer 50, and the second passivation layer 60.

Here the spacer layer 401 may be correspondingly disposed over the pixel defining layer 24.

In addition, a buffer layer 20 may be disposed between the substrate 10 and the driving circuit layer 301 to better isolate the driving circuit layer 301 from the substrate 10.

With continued reference to fig. 3 and 11, in some embodiments, the flexible barrier structure 1001 includes a second flexible membrane layer 101 positioned between the first flexible membrane layer 102 and the substrate base plate 10.

In some embodiments, the driving circuit layer 301 and the light emitting layer 201 each include an organic layer, and the second flexible film layer 101 is formed of the same material as at least one of the organic layer of the driving circuit layer 301, the organic layer of the light emitting layer 201, and the spacer layer 401.

It will be appreciated that the second flexible film layer 101 may be formed as a single organic layer or may be formed as a stack of organic layers. Accordingly, the second flexible film layer 101 is formed of the same material as at least one of the organic layer of the driving circuit layer 301, the organic layer of the light emitting layer 201, and the spacer layer 401, and it is understood that the second flexible film layer 101 may be formed of the same material as the organic layer of the driving circuit layer 301, the organic layer of the light emitting layer 201, and one organic layer of the spacer layer 401, or may be formed of a plurality of organic layers at the outer edge of the opening pattern when forming the organic layer of the driving circuit layer 301, the organic layer of the light emitting layer 201, and the plurality of organic layers of the spacer layer 401.

For example, as shown in fig. 3 and 11, in some embodiments, the organic layer of the driving circuit layer 301 includes a first planarization layer 30 and a second planarization layer 40, the light-emitting layer 201 includes a pixel defining layer 24, and the second flexible film layer 101 is made of the same material as at least one of the first planarization layer 30, the second planarization layer 40, the pixel defining layer 24, and the spacer layer 401.

It is understood that in other embodiments, the second organic film layer may also be formed of other organic film layers of the light emitting unit.

Continuing with fig. 3, in some embodiments, the flexible blocking structure 1001 has a blocking sidewall a on a side of the aperture pattern 110, and the aperture pattern 110 has an aperture sidewall b, and the blocking sidewall a is flush with the aperture sidewall b.

Of course, in order to further reduce the influence due to the substrate being stretched, the barrier sidewall a of the flexible barrier structure 1001 on the side close to the aperture pattern 110 may be set to be retracted toward the side away from the aperture pattern 110.

For example, as shown in fig. 4, in other embodiments, the blocking sidewall a is retracted toward a side facing away from the hole pattern 110, so as to form a notch 1002 at an edge of the hole pattern 110.

The inventors have found from a number of experiments that in some embodiments, the recess 1002 has a reduced dimension d of 2 μm to 10 μm, which provides a better barrier effect. I.e., the barrier sidewall a is tapered to a size of 2 μm to 10 μm toward the side facing away from the aperture pattern 110, the barrier effect is preferable.

Based on the above description, the stretchable display substrate shown in fig. 3 and 4 or the stretchable display substrate similar to that shown in fig. 3 and 4 may be prepared as follows: first, a substrate 10 without openings is provided. Further, a buffer layer 20, an active layer 311, a gate insulating layer 316, a gate electrode 312, an interlayer insulating layer 315, a first electrode 313 and a second electrode 314, a first planarization layer 30, a signal wiring layer 317, a second planarization layer 40, a first passivation layer 50, a second passivation layer 60, a first electrode 21, a pixel defining layer 24, a spacer layer 401, an organic light emitting layer 22, a second electrode 23, a first inorganic encapsulation layer 70, an organic encapsulation layer 80, a second organic encapsulation layer 90, and the like are sequentially formed on the substrate 10. Then, an open hole pattern 110 is formed at a predetermined position on the substrate 10.

Also, in some embodiments, the second flexible film layer 101 may be formed when one or more of the first planarization layer 30, the second planarization layer 40, the pixel defining layer 24, and the spacer layer 401 are formed. The first flexible film layer 102 is formed in a process of forming the organic encapsulation layer 80. And the first inorganic layer 104 and the second inorganic layer 105 may be formed when the first inorganic encapsulation layer 70 and the second organic encapsulation layer 90 are formed, respectively.

In other embodiments, the flexible barrier structure 1001 may not include the second flexible film layer 101. Referring to fig. 5 and 11, the stretchable display substrate shown in fig. 5 is similar to the stretchable display substrate in the embodiment shown in fig. 3 described above, except that the stretchable display substrate shown in fig. 5 does not have a second flexible film layer.

Referring to fig. 6 and 11, in other embodiments, similar to the difference between the embodiment shown in fig. 4 and the embodiment shown in fig. 3, the stretchable flexible substrate shown in fig. 6 is further reduced in the blocking sidewall a toward the side facing away from the aperture pattern 110, compared with the stretchable flexible substrate shown in fig. 5, to form a notch 1002 at the edge of the aperture pattern 110.

Accordingly, the recess 1002 may have a reduced dimension of 2 μm to 10 μm, and the blocking effect is also preferable. I.e., the barrier sidewall a is tapered to a size of 2 μm to 10 μm toward the side facing away from the aperture pattern 110, the barrier effect is preferable.

Based on the above description, the stretchable display substrate shown in fig. 5 and 6 or the stretchable display substrate similar to the stretchable display substrate shown in fig. 7 and 8 has a preparation process that omits the preparation of the second flexible film layer compared to the preparation process of the stretchable display substrate shown in fig. 3 and 4.

In other embodiments, in addition to having the first flexible film layer 102 and the second flexible film layer 103, the stretchable flexible substrate may also have a third flexible film layer located in the substrate 10 to further reduce the transmission of stress in the region of the aperture pattern 110.

For example, as shown in fig. 7 and 11, the substrate 10 has a slot located at the periphery of the opening pattern 110 and penetrating through a part of the thickness of the substrate 10, where the slot is open toward the side where the flexible blocking structure 1001 is located and opposite to the flexible blocking structure 1001, and a third flexible film layer 103 is disposed in the slot.

The material of the third flexible film layer 103 may be an organic material.

The third flexible film 103 is formed substantially before the first flexible film, the second flexible film and the display unit are formed.

Referring to fig. 8, in other embodiments, the flexible barrier structure 1001 may be retracted for a stretchable display substrate having the third flexible film layer 103. The same or similar structures may be referred to in the related description above. As shown in connection with fig. 9 and 11, in still other embodiments, for the absence of the second flexible film layer 102 on the substrate 10, a corresponding third flexible film layer 103 may also be provided in the substrate 10. Other identical or similar points may be referred to the relevant description above. Accordingly, as shown in connection with fig. 10, in still other embodiments, the flexible barrier structure may be retracted as well as compared to the stretchable display substrate shown in fig. 9. The same or similar structures may be referred to in the related description above.

Based on the above description, the stretchable display substrate shown in fig. 7 and 8 or the stretchable display substrate similar to the stretchable display substrate shown in fig. 7 and 8 may further form a groove penetrating through a portion of the thickness of the substrate 10 on the surface of the substrate 10 by etching or mechanical punching at the periphery of the predetermined opening position of the opening pattern before forming the buffer layer 20 on the substrate 10, and fill the groove with a flexible material (such as an organic material) to form the third flexible film layer 103, compared with the preparation process of the stretchable display substrate shown in fig. 3 and 4.

The display device 100 in this embodiment may be: electronic paper, mobile phone, tablet computer, television, notebook computer, digital photo frame, navigator and any other products or components with display function.

It is noted that in the drawings, the size of layers and regions may be exaggerated for clarity of illustration. Moreover, it will be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element or intervening layers may be present. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element or intervening layers or elements may be present. In addition, it will be understood that when a layer or element is referred to as being "between" two layers or elements, it can be the only layer between the two layers or elements, or more than one intervening layer or element may also be present. Like reference numerals refer to like elements throughout.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (13)

1. A stretchable display substrate, the stretchable display substrate comprising:

a substrate, on which a plurality of open hole patterns are distributed, wherein a plurality of bridges capable of enclosing islands are formed between at least part of adjacent open hole patterns in the plurality of open hole patterns;

a plurality of display units, at least one display unit is arranged on each island;

the plurality of connecting wires are respectively connected between the plurality of display units on the island and are respectively arranged on the plurality of bridges;

at least part of the edges of the open hole patterns are provided with flexible blocking structures positioned on the substrate, and the flexible blocking structures comprise at least one flexible film layer.

2. The stretchable display substrate of claim 1, wherein the flexible barrier structure comprises a first flexible film layer over the substrate.

3. The stretchable display substrate of claim 2, wherein the display unit comprises an encapsulation layer comprising an organic encapsulation layer, the first flexible film layer being co-layer of the same material as the organic encapsulation layer.

4. The stretchable display substrate of claim 3, wherein the materials of the first flexible film layer and the organic encapsulation layer comprise an optical cement material.

5. The stretchable display substrate of claim 3, wherein the encapsulation layer further comprises a first inorganic encapsulation layer and a second inorganic encapsulation layer on opposite surfaces of the organic encapsulation layer, and the flexible barrier structure further comprises a first inorganic layer and a second inorganic layer on opposite surfaces of the first flexible film layer, wherein the first inorganic layer is the same material as the first inorganic encapsulation layer, and the second inorganic layer is the same material as the second inorganic encapsulation layer.

6. The stretchable display substrate of claim 3, wherein the flexible barrier structure comprises a second flexible film layer positioned between the first flexible film layer and the substrate.

7. The stretchable display substrate according to claim 6, wherein the display unit has a driving circuit layer, a light emitting layer, and a spacer layer sequentially provided between the substrate and the encapsulation layer, wherein the driving circuit layer and the light emitting layer each include an organic layer, and wherein the second flexible film layer is co-layer with at least one of the organic layer of the driving circuit layer, the organic layer of the light emitting layer, and the spacer layer.

8. The stretchable display substrate according to claim 7, wherein the organic layer of the driving circuit layer comprises a first planarization layer and a second planarization layer, the light-emitting layer comprises a pixel defining layer, and the second flexible film layer is co-layer with at least one of the first planarization layer, the second planarization layer, the pixel defining layer, and the spacer layer.

9. The stretchable display substrate of any of claims 1-8, wherein the substrate has a slot located around the aperture pattern and extending through a portion of the thickness of the substrate, the slot opening facing a side of the flexible barrier structure opposite the flexible barrier structure, the slot having a third flexible film layer disposed therein.

10. The stretchable display substrate of claim 1, wherein the flexible barrier structure has a barrier sidewall adjacent to a side of the aperture pattern, the aperture pattern having an aperture sidewall, the barrier sidewall being flush with the aperture sidewall.

11. The stretchable display substrate of claim 1, wherein the flexible barrier structure has a barrier sidewall adjacent to a side of the aperture pattern, the aperture pattern has an aperture sidewall, and the barrier sidewall is tapered toward a side facing away from the aperture pattern to form a notch portion at an edge of the aperture pattern.

12. The stretchable display substrate of claim 11, wherein the notched portion has a neck-in dimension of 2 μm to 10 μm.

13. A display device comprising the stretchable display substrate according to any one of claims 1 to 12.

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