Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device, the display panel comprises a first substrate and a second substrate which are oppositely arranged, the first substrate comprises a first elastic layer, a first buffer layer and a plurality of first packaging structures, and each first packaging structure comprises at least one first type of sub-pixels; the first buffer layer is located between the first elastic layer and the first packaging structure; the second substrate comprises a second elastic layer, a second buffer layer and a plurality of second packaging structures, each second packaging structure comprises at least one second type of sub-pixels, and the second buffer layer is located between the second elastic layer and the second packaging structure; the display panel comprises a first area and a second area, and the first area and the second area are arranged in the first direction; in the first area and / or the second area, the stretching amount of the first buffer layer and the stretching amount of the second buffer layer in the same direction are different. According to the display panel, the second type of sub-pixels can be exposed and displayed after the display panel is stretched, and the resolution of a display picture after the display panel is stretched can be improved.

Description

Technical Field

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

[0002] In the field of display technologies, stretchable display panels have become the focus of research by major manufacturers in recent years because they can expand or compress the display area and meet the usage requirements of consumers in different scenarios.

[0003] However, in the prior art, the resolution of stretchable display panels during stretching is relatively low, and the display quality is poor. Therefore, a solution is urgently needed. Summary of the Invention

[0004] In view of this, embodiments of the present application provide a display panel and a display device to solve the above problems.

[0005] In a first aspect, an embodiment of the present application provides a display panel, including a first substrate and a second substrate disposed opposite to each other. The first substrate includes a first elastic layer, a first buffer layer, and a plurality of first encapsulation structures. Each first encapsulation structure includes at least one first type of sub-pixel. The first buffer layer is located between the first elastic layer and the first encapsulation structures, and the first encapsulation structures are located on a side of the first elastic layer facing the second substrate. The second substrate includes a second elastic layer, a second buffer layer, and a plurality of second encapsulation structures. Each second encapsulation structure includes at least one second type of sub-pixel. The second buffer layer is located between the second elastic layer and the second encapsulation structures, and the second encapsulation structures are located on a side of the second elastic layer facing the first substrate. Wherein, the display panel includes a first region and a second region, and the first region and the second region are arranged along a first direction; in the first region and / or the second region, the stretching amounts of the first buffer layer and the second buffer layer in the same direction are different.

[0006] In a second aspect, an embodiment of the present application provides a display device, including the display panel provided in the first aspect.

[0007] In the embodiments of the present application, by setting that in the first region and / or the second region, the stretching amounts of the first buffer layer and the second buffer layer in the same direction are different, when stretching the display panel, in the first region and / or the second region, the distance that the first buffer layer drives the first encapsulation structure to move is different from the distance that the second buffer layer drives the second encapsulation structure to move, which is beneficial to staggering the first type of sub-pixels in the first encapsulation structure and the second type of sub-pixels in the second encapsulation structure in a direction perpendicular to the plane of the display panel, so that after the display panel is stretched, the second type of sub-pixels are exposed for display, thereby increasing the number of sub-pixels available for displaying a picture after the display panel is stretched, and further being beneficial to improving the resolution of the displayed picture after the display panel is stretched and improving the display quality. Brief Description of the Drawings

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0009] Figure 1 It is a schematic structural diagram of a display panel in a contracted state provided by an embodiment of the present application; Figure 2 It is a schematic structural diagram of a display panel in a stretched state provided by an embodiment of the present application; Figure 3 It is a schematic plan view of a first substrate and a second substrate provided by an embodiment of the present application; Figure 4 It is another schematic structural diagram of a display panel in a contracted state provided by an embodiment of the present application; Figure 5 It is a schematic diagram of the film layer structure of a sub-pixel provided by an embodiment of the present application; Figure 6 It is a schematic diagram of the film layer structure of a connection structure provided by an embodiment of the present application; Figure 7 It is another schematic plan view of a first substrate and a second substrate provided by an embodiment of the present application; Figure 8 It is another schematic structural diagram of a display panel in a contracted state provided by an embodiment of the present application; Figure 9 It is another schematic structural diagram of a display panel in a contracted state provided by an embodiment of the present application; Figure 10 It is another schematic plan view of a first substrate and a second substrate provided by an embodiment of the present application; Figure 11 It is another schematic plan view of a first substrate and a second substrate provided by an embodiment of the present application; Figure 12 It is another schematic plan view of a first substrate and a second substrate provided by an embodiment of the present application; Figure 13 It is another schematic plan view of a first substrate and a second substrate provided by an embodiment of the present application; Figure 14 It is another schematic plan view of a first substrate and a second substrate provided by an embodiment of the present application; Figure 15 It is another schematic plan view of a first substrate and a second substrate provided by an embodiment of the present application; Figure 16 Schematic diagram of a display device provided by an embodiment of the present application. Detailed implementation manners

[0010] For a better understanding of the technical solutions of the present application, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0011] It should be clear that the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0012] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "the" and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0013] It should be understood that the term " / and" used herein is only a relational term describing associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0014] Figure 1 Schematic diagram of the structure of a display panel in a contracted state provided by an embodiment of the present application, Figure 2 Schematic diagram of the structure of a display panel in a stretched state provided by an embodiment of the present application.

[0015] An embodiment of the present application provides a display panel 01, and the display panel 01 is a stretchable display panel. As Figure 1 and Figure 2 shown, the display panel 01 includes a first substrate 10 and a second substrate 20 which are oppositely arranged. The first substrate 10 includes a first elastic layer 11, a first buffer layer 12, and a plurality of first encapsulation structures 13. Each first encapsulation structure 13 includes at least one first type of sub-pixel 131. The first buffer layer 12 is located between the first elastic layer 11 and the first encapsulation structure 13, and the first encapsulation structure 13 is located on the side of the first elastic layer 11 facing the second substrate 20.

[0016] Among them, the first elastic layer 11 can be the flexible substrate in the first substrate 10 and includes stretchable polymers. Optionally, the first elastic layer 11 includes at least one of silicone elastomer, polyurethane, polydimethylsiloxane, thermoplastic polyurethane elastomer rubber, thermoplastic polyimide, copolyester, polycarbonate (PC), polyethersulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyaryl compound (PAR), and glass fiber reinforced plastic (FRP).

[0017] Optionally, the first buffer layer 12 is disposed on the first elastic layer 11, and the first encapsulation structure 13 is disposed on the first buffer layer 12. The first buffer layer 12 includes an elastic organic material.

[0018] The second substrate 20 includes a second elastic layer 21, a second buffer layer 22, and a plurality of second encapsulation structures 23. Each second encapsulation structure 23 includes at least one second type of sub-pixel 231. The second buffer layer 22 is located between the second elastic layer 21 and the second encapsulation structures 23, and the second encapsulation structures 23 are located on the side of the second elastic layer 21 facing the first substrate 10.

[0019] Exemplarily, the first type of sub-pixel 131 and the second type of sub-pixel 231 can both include red sub-pixels, green sub-pixels, and blue sub-pixels.

[0020] Among them, the second elastic layer 21 can be the flexible substrate in the second substrate 20 and includes stretchable polymers. Optionally, the second elastic layer 21 includes at least one of silicone elastomer, polyurethane, polydimethylsiloxane, thermoplastic polyurethane elastomer rubber, thermoplastic polyimide, copolyester, polycarbonate (PC), polyethersulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyaryl compound (PAR), and glass fiber reinforced plastic (FRP).

[0021] Exemplarily, the second elastic layer 21 and the first elastic layer 11 are prepared from the same material.

[0022] Optionally, the second buffer layer 22 is disposed on the second elastic layer 21, and the second encapsulation structures 23 are disposed on the second buffer layer 22. The second buffer layer 22 includes an elastic organic material.

[0023] Among them, the display panel 01 includes a first region 101 and a second region 102. The first region 101 and the second region 102 are arranged along the first direction X, and the first direction X is parallel to the plane where the display panel 01 is located. In the first region 101 and / or the second region 102, the stretching amounts of the first buffer layer 12 and the second buffer layer 22 in the same direction are different.

[0024] For example, when the display panel 01 is stretched in the first direction X, in the first region 101 and / or the second region 102, the stretching amounts of the first buffer layer 12 and the second buffer layer 22 in the first direction X are different.

[0025] Optionally, as Figure 3 shown, Figure 3 FIG. is a schematic plan view of a first substrate and a second substrate provided by an embodiment of the present application. The display panel 01 includes a first virtual central axis CC extending in the second direction Y, the second direction Y intersects the first direction X, and the first region 101 and the second region 102 are located on opposite sides of the first virtual central axis CC.

[0026] It should be noted that, for the sake of clarity of illustration, Figure 3 only the first buffer layer 12 and the first encapsulation structure 13 in the first substrate 10 are schematically shown, and only the second buffer layer 22 and the second encapsulation structure 23 in the second substrate 20 are schematically shown.

[0027] In the embodiment of the present application, by setting that in the first region 101 and / or the second region 102, the stretching amounts of the first buffer layer 12 and the second buffer layer 22 in the same direction are different, when the display panel 01 is stretched, in the first region 101 and / or the second region 102, the distance that the first buffer layer 12 drives the first encapsulation structure 13 to move is different from the distance that the second buffer layer 22 drives the second encapsulation structure 23 to move, which is beneficial to staggering the first type of sub-pixels 131 in the first encapsulation structure 13 and the second type of sub-pixels 231 in the second encapsulation structure 23 in the direction Z perpendicular to the plane of the display panel 01. Therefore, after the display panel 01 is stretched, the second type of sub-pixels 231 are exposed for display, so as to increase the number of sub-pixels available for displaying a picture after the display panel 01 is stretched, and further improve the resolution of the display picture after the display panel 01 is stretched and improve the display quality.

[0028] For example, as shown in combination with Figure 1 and Figure 2 it can be set that the first type of sub-pixels 131 is a bottom-emitting structure, and the first type of sub-pixels 131 emit light toward the first elastic layer 11; the second type of sub-pixels 231 is a top-emitting structure, and the second type of sub-pixels 231 emit light toward the first elastic layer 11. In the contracted state of the display panel 01, the first type of sub-pixels 131 emit light, and the second type of sub-pixels 231 do not emit light; in the stretched state of the display panel 01, both the first type of sub-pixels 131 and the second type of sub-pixels 231 emit light. In this way, after the display panel 01 is stretched, the first type of sub-pixels 131 and the second type of sub-pixels 231 can be staggered for display, increasing the number of sub-pixels for displaying a picture, thereby improving the resolution of the display panel 01 in the stretched state.

[0029] Optionally, the display panel 01 includes a contracted state and a stretched state. As Figure 1 shown, in the contracted state, along the direction Z perpendicular to the plane where the display panel 01 is located, the first encapsulation structure 13 and the second encapsulation structure 23 at least partially overlap.

[0030] Exemplarily, as Figure 1 shown, along the direction Z perpendicular to the plane where the display panel 01 is located, the first encapsulation structure 13 and the second encapsulation structure 23 partially overlap.

[0031] Exemplarily, as Figure 4 shown, Figure 4 which is a schematic structural diagram of another display panel in the contracted state provided by the embodiment of the present application. Along the direction Z perpendicular to the plane where the display panel 01 is located, the projections of the first encapsulation structure 13 and the second encapsulation structure 23 on the same plane coincide.

[0032] As Figure 2 shown, in the stretched state, along the direction Z perpendicular to the plane where the display panel 01 is located, the first encapsulation structure 13 and the second encapsulation structure 23 do not overlap.

[0033] Based on this setting method, on the one hand, it is beneficial to ensure that in the contracted state, more first encapsulation structures 13 and second encapsulation structures 23 can be arranged in the display panel 01, so as to ensure that the display panel 01 has a high display resolution in the contracted state. On the other hand, while increasing the display resolution of the display panel 01 in the stretched state, it is beneficial to avoid the problem of light interference between the first type of sub-pixels 131 in the first encapsulation structure 13 and the second type of sub-pixels 231 in the second encapsulation structure 23, thereby being beneficial to further improving the display quality.

[0034] In an embodiment of the present application, as Figure 3 shown, the first substrate 10 further includes a first connection structure 14. The first connection structure 14 is electrically connected to two adjacent first encapsulation structures 13. The first connection structure 14 includes multiple signal traces, which can be used to transmit electrical signals to the first type of sub-pixels 131 in the first encapsulation structure 13. Optionally, the first connection structure 14 is arranged on the first buffer layer 12.

[0035] The second substrate 20 further includes a second connection structure 24. The second connection structure 24 is electrically connected to two adjacent second encapsulation structures 23. The second connection line 24 includes multiple signal traces, which can be used to transmit electrical signals to the second type of sub-pixels 231 in the second encapsulation structure 23. Optionally, the second connection structure 24 is arranged on the second buffer layer 22.

[0036] Exemplarily, in the first connection structure 14 and the second connection structure 24, for example, they may both include scan signal lines, data signal lines, sensing signal lines, etc. The forming materials of the film layers where these signal lines are located may include, for example, at least one or more of molybdenum, aluminum, silver, indium tin oxide (ITO).

[0037] In the embodiments of the present application, the first connection structure 14 and the second connection structure 24 can respectively transmit display signals to the first type of sub-pixels 131 and the second type of sub-pixels 231 to meet the normal display requirements of the first type of sub-pixels 131 and the second type of sub-pixels 231.

[0038] Moreover, when the display panel 01 is stretched for display, the signal lines in the first connection structure 14 and the second connection structure 24 can also be used to provide feedback signals to the control system, and the control system controls the first type of sub-pixels 131 and the second type of sub-pixels 231 to emit light according to the feedback signals, increasing the resolution of the stretched display of the display panel 01.

[0039] Of course, the control system can also judge whether the display panel 01 is in a stretched state or a contracted state according to other conditions, so as to control the light-emitting states of the first type of sub-pixels 131 and the second type of sub-pixels 231 according to actual needs.

[0040] Figure 5 It is a schematic diagram of the film layer structure of a sub-pixel provided by the embodiments of the present application.

[0041] In an embodiment of the present application, the film layer structures of the first type of sub-pixels 131 and the second type of sub-pixels 231 may both be as Figure 5 shown, including an array layer ZL and a light-emitting device layer FG. The light-emitting device layer FG is located on the side of the array layer ZL away from the buffer layer HC. In the film layer structure diagram of the first type of sub-pixels 131, the buffer layer HC may be the first buffer layer 12, and in the film layer structure diagram of the second type of sub-pixels 231, the buffer layer HC may be the second buffer layer 22.

[0042] The array layer ZL includes a plurality of transistors T, and the plurality of transistors T can form a pixel circuit XD. The light-emitting device layer FG includes a light-emitting unit LG. The light-emitting unit LG includes an anode LG1, a light-emitting layer LG2, and a cathode LG3 which are stacked. The cathode LG3 is located on the side of the light-emitting layer LG2 away from the array layer ZL. At least a part of the light-emitting layer LG2 can be arranged in the opening of the pixel definition layer PDL. A packaging layer TFE is arranged on the side of the cathode LG3 away from the light-emitting layer LG2 for protecting internal devices.

[0043] Among them, the pixel circuit XD is electrically connected to the anode LG1 and can be used to provide a light-emitting driving signal to the light-emitting unit LG.

[0044] It should be noted that Figure 5Only one transistor T in the pixel circuit XD is schematically shown.

[0045] Exemplarily, as Figure 5 shown, the array layer ZL may include a first inorganic layer ZL1, a semiconductor layer PY, a gate insulating layer GI, a first metal layer M1, a capacitive dielectric layer ZL2, a capacitive electrode plate layer MC, an intermediate dielectric layer ZL3, a second metal layer M2, a second inorganic layer ZL4, and a planarization layer PLN which are stacked. The gate of the transistor T is located in the first metal layer M1, and the source and drain are located in the second metal layer M2. The first inorganic layer ZL1 may be directly disposed on the buffer layer HC.

[0046] If the sub-pixel is a top-emitting structure, the anode LG1 may be set as a reflective electrode, and the light emitted from the light-emitting layer LG2 is emitted through the cathode LG3 side. If the sub-pixel is a bottom-emitting structure, the cathode LG3 may be set as a reflective electrode, and the light emitted from the light-emitting layer LG2 is emitted through the array layer ZL.

[0047] Figure 6 It is a schematic diagram of the film layer structure of a connection structure provided by an embodiment of the present application.

[0048] In an embodiment of the present application, the film layer structures of the first connection structure 14 and the second connection structure 24 may both be as Figure 6 shown, including a first metal layer M1, a capacitive electrode plate layer MC, and a second metal layer M2. The capacitive electrode plate layer MC is located between the first metal layer M1 and the second metal layer M2, and the second metal layer M2 is located on the side of the first metal layer M1 away from the buffer layer HC. In the film layer structure diagram of the first connection structure 14, the buffer layer HC may be the first buffer layer 12, and in the film layer structure diagram of the second connection structure 24, the buffer layer HC may be the second buffer layer 22.

[0049] Specifically, as Figure 6 shown, in the first connection structure 14 and the second connection structure 24, there are also a first inorganic layer ZL1 located on the side of the first metal layer M1 close to the buffer layer HC, a capacitive dielectric layer ZL2 located between the first metal layer M1 and the capacitive electrode plate layer MC, an intermediate dielectric layer ZL3 located between the capacitive electrode plate layer MC and the second metal layer M2, and a second inorganic layer ZL4 located on the layer of the second metal layer M2 away from the buffer layer HC.

[0050] Among them, in the first connection structure 14 and the second connection structure 24, the first metal layer M1 may include a scan signal line, the second metal layer M2 may include a data signal line and a power supply signal line, and the capacitive electrode plate layer MC may include a power supply signal line and a reset signal line.

[0051] The sensing signal line may be disposed in any one of the first metal layer M1, the capacitive electrode plate layer MC, and the second metal layer M2.

[0052] In addition, as Figure 6 shown, a cathode LG3 is further provided on the side of the second inorganic layer ZL4 away from the buffer layer HC. The cathode LG3 can be directly provided on the second inorganic layer ZL4. The cathode in the connection structure can be electrically connected to the cathodes of sub-pixels in the same substrate to achieve a common cathode for sub-pixels in the same substrate. A packaging layer TFE is provided on the side of the cathode LG3 away from the buffer layer HC to protect the internal devices.

[0053] Combined with Figure 5 and Figure 6 shown, in the connection structure film layer and the sub-pixel film layer, the same film layer can be prepared using the same material and the same process.

[0054] In an embodiment of the present application, as Figure 1 and Figure 2 shown, in the first region 101, the elastic modulus of the first buffer layer 12 is different from that of the second buffer layer 22. In the second region 102, the elastic modulus of the first buffer layer 12 is different from that of the second buffer layer 22.

[0055] That is to say, in the same region, the elastic moduli of the relatively arranged first buffer layer 12 and the second buffer layer 22 are different.

[0056] It can be understood that if the elastic moduli of objects are different, their tensile deformation amounts can be different.

[0057] In the embodiment of the present application, by setting the elastic moduli of the first buffer layer 12 and the second buffer layer 22 in the same region to be different, it is beneficial to achieve different tensile amounts of the first buffer layer 12 and the second buffer layer 22 in the same direction in the corresponding region. Thus, it is beneficial to make the first type of sub-pixels 131 and the second type of sub-pixels 231 in the first region 101 and the second region 102 be staggered from each other in the direction perpendicular to the plane of the display panel 01, improving the display quality of the display panel 01 after stretching.

[0058] Optionally, as Figure 2 shown, in the first region 101, the elastic modulus of the first buffer layer 12 is greater than that of the second buffer layer 22. In the second region 102, the elastic modulus of the first buffer layer 12 is less than that of the second buffer layer 22.

[0059] Based on this setting method, the stretching amount of some of the first buffer layers 12 in the first substrate 10 can be greater than the stretching amount of the corresponding second buffer layers 22 in the second substrate 20; the stretching amount of some of the first buffer layers 12 in the first substrate 10 can be less than the stretching amount of the corresponding second buffer layers 22 in the second substrate 20. While ensuring that the first type of sub-pixels 131 and the second type of sub-pixels 231 in the first region 101 and the second region 102 can be staggered from each other, it is beneficial to make the stretching deformation amount of the first substrate 10 tend to be consistent with the stretching deformation amount of the second substrate 20, thereby being beneficial to improving the structural stability and aesthetics of the display panel 01.

[0060] Optionally, the elastic modulus of the first buffer layer 12 in the first region 101 is the same as the elastic modulus of the second buffer layer 22 in the second region 102. The elastic modulus of the second buffer layer 22 in the first region 101 is the same as the elastic modulus of the first buffer layer 12 in the second region 102.

[0061] Exemplarily, as Figure 1 and Figure 4 shown, the first buffer layer 12 includes a first type of buffer module 121, and the first type of buffer module 121 includes a first buffer module 1211 and a second buffer module 1212. The first buffer module 1211 is located in the first region 101, and the second buffer module 1212 is located in the second region 102.

[0062] The second buffer layer 22 includes a second type of buffer module 221, and the second type of buffer module 221 includes a third buffer module 2211 and a fourth buffer module 2212. The third buffer module 2211 is located in the first region 101, and the fourth buffer module 2212 is located in the second region 102.

[0063] Among them, the elastic modulus of the first buffer module 1211 is the same as that of the fourth buffer module 2212, and the elastic modulus of the second buffer module 1212 is the same as that of the third buffer module 2211.

[0064] From the foregoing analysis, it can be seen that in the first region 101, the elastic modulus of the first buffer layer 12 is greater than that of the second buffer layer 22. In the second region 102, the elastic modulus of the first buffer layer 12 is less than that of the second buffer layer 22. Therefore, in the first region 101, the elastic modulus of the first buffer module 1211 is greater than that of the correspondingly arranged third buffer module 2211, and in the second region 102, the elastic modulus of the second buffer module 1212 is less than that of the correspondingly arranged fourth buffer module 2212.

[0065] When the display panel 01 is stretched, in the first region 101, the deformation amount of the third buffer module 2211 in the stretching direction can be greater than that of the first buffer module 1211 in the stretching direction, which is beneficial to enabling the third buffer module 2211 to drive the second encapsulation structure 23 to move a distance greater than the distance that the first buffer module 1211 drives the first encapsulation structure 13 to move, thereby facilitating the staggering of the first type of sub-pixels 131 and the second type of sub-pixels 231 in the first region 101 in the direction Z perpendicular to the plane where the display panel 01 is located.

[0066] In the second region 102, the deformation amount of the second buffer module 1212 in the stretching direction can be greater than that of the fourth buffer module 2212 in the stretching direction, which is beneficial to enabling the second buffer module 1212 to drive the first encapsulation structure 13 to move a distance greater than the distance that the fourth buffer module 2212 drives the second encapsulation structure 23 to move, thereby facilitating the staggering of the first type of sub-pixels 131 and the second type of sub-pixels 231 in the second region 102 in the direction Z perpendicular to the plane where the display panel 01 is located.

[0067] In this way, in the stretched state of the display panel 01, the first type of sub-pixels 131 in the first substrate 10 and the corresponding second type of sub-pixels 231 in the second substrate 20 can all be staggered from each other in the direction Z perpendicular to the plane where the display panel 01 is located. At this time, by controlling both the first type of sub-pixels 131 and the second type of sub-pixels 231 to emit light, the number of sub-pixels used for displaying the picture after the display panel 01 is stretched can be increased, and the resolution of the picture displayed by the display panel 01 after stretching can be improved.

[0068] Moreover, by setting the elastic moduli of the first buffer module 1211 in the first substrate 10 and the fourth buffer module 2212 in the second substrate 20 to be the same, and the elastic moduli of the second buffer module 1212 in the first substrate 10 and the third buffer module 2211 in the second substrate 20 to be the same, when the display panel 01 is stretched, it is beneficial to making the sum of the deformation amounts of the first buffer module 1211 and the second buffer module 1212 in the first substrate 10 the same as the sum of the deformation amounts of the third buffer module 2211 and the fourth buffer module 2212 in the second substrate 20, thereby further facilitating the alignment of the stretching deformation amounts of the first substrate 10 and the second substrate 20, and improving the structural stability and aesthetics of the display panel 01 in the stretched state.

[0069] In addition, the first buffer module 1211 in the first region 101 can be made of the same material as the fourth buffer module 2212 in the second region 102, and the second buffer module 1212 in the first region 101 can be made of the same material as the third buffer module 2211 in the second region 102, so as to reduce the number of material types in the display panel 01, which is beneficial to reducing the structural complexity of the display panel 01, simplifying the manufacturing process of the display panel 01, and reducing the manufacturing difficulty.

[0070] Figure 7 This is another schematic plan view of the first substrate and the second substrate provided by the embodiment of the present application.

[0071] In an embodiment of the present application, as Figure 7 shown, a plurality of first encapsulation structures 13 are arranged in an array along the first direction X and the second direction Y, and the second direction Y intersects the first direction X.

[0072] Exemplarily, in the first direction X and the second direction Y, one is the row direction in the display panel 01, and the other is the column direction in the display panel 01.

[0073] Four first encapsulation structures 13 arranged in an array along the first direction X and the second direction Y enclose a third region 103. The first buffer layer 12 includes a first hollow-out area 12A, and the first hollow-out area 12A is located in the third region 103.

[0074] That is to say, in the region enclosed by the four first encapsulation structures 13 arranged in an array, the first buffer layer 12 may not be provided.

[0075] In the embodiment of the present application, setting the first hollow-out area 12A in the third region 103 is beneficial to increasing the stretching amount of the first buffer layer 12 when stretching the display panel 01, which is beneficial to driving the corresponding second encapsulation structure 23 of the first encapsulation structure 13 to stagger better, and improving the reliability of the staggering between the first type of sub-pixels 131 and the second type of sub-pixels 231.

[0076] Optionally, as Figure 7 shown, in the first substrate 10, any third region 103 includes a first hollow-out area 12A. To increase the stretchable amount of the first buffer layer 12 to a greater extent.

[0077] Please continue to refer to Figure 7 , in an embodiment of the present application, the first buffer layer 12 includes a plurality of first type buffer modules 121 and a plurality of first connection bridges 122. The first type buffer modules 121 are correspondingly arranged with the first encapsulation structures 13, and the first connection bridges 122 are connected to two adjacent first type buffer modules 121.

[0078] Exemplarily, asFigure 7 As shown, a first connection bridge 122 is disposed between two first - type buffer modules 121 adjacent along the first direction X, and a first connection bridge 122 is also disposed between two first - type buffer modules 121 adjacent along the second direction Y.

[0079] Among them, the first encapsulation structure 13 can be disposed on the first - type buffer module 121, and the first connection structure 14 can be disposed on the first connection bridge 122.

[0080] In the direction perpendicular to the plane where the display panel 01 is located, the projected area of the first encapsulation structure 13 is not greater than the projected area of the first - type buffer module 121, so as to ensure the reliability of the first - type buffer module 121 in carrying the first encapsulation structure 13.

[0081] Exemplarily, as Figure 7 shown, in the direction perpendicular to the plane where the display panel 01 is located, the projected area of the first encapsulation structure 13 is smaller than the projected area of the first - type buffer module 121.

[0082] Exemplarily, as Figure 8 shown, Figure 8 This is another schematic structural diagram of the display panel in the contracted state provided by the embodiment of the present application. Along the direction Z perpendicular to the plane where the display panel 01 is located, the projections of the first encapsulation structure 13 and the first - type buffer module 121 on the same plane coincide.

[0083] Among them, the width of the first connection bridge 122 is smaller than the width of the first - type buffer module 121 it connects in the same direction.

[0084] For example, as Figure 7 shown, in the first connection bridge 122 extending along the first direction X, its maximum width in the second direction Y is W1, and the minimum width of the first - type buffer module 121 it is connected to in the second direction Y is W2, and W1 < W2.

[0085] In the embodiment of the present application, the first buffer layer 12 can be in an island - bridge structure, which is beneficial to further increasing the area of the first hollow region 12A, thereby being beneficial to further increasing the stretching deformation amount of the first buffer layer 12 and increasing the reliability of the misalignment between the first - type sub - pixels 131 and the second - type sub - pixels 231 in the stretched state.

[0086] In an embodiment of the present application, as Figure 7 shown, a plurality of second encapsulation structures 23 are arranged in an array along the first direction X and the second direction Y. In the contracted state of the display panel 01, the second encapsulation structures 23 are arranged corresponding to the first encapsulation structures 13.

[0087] Four second encapsulation structures 23 arranged in an array along a first direction X and a second direction Y enclose a fourth region 104. The second buffer layer 22 includes a second hollowed-out area 22A, and the second hollowed-out area 22A is located in the fourth region 104. That is, in the region enclosed by the four second encapsulation structures 23 arranged in an array, the second buffer layer 22 may not be provided. The second hollowed-out area 22A and the first hollowed-out area 12A may be correspondingly arranged.

[0088] In the embodiment of the present application, setting the second hollowed-out area 22A in the fourth region 104 is beneficial to increasing the stretching amount of the second buffer layer 22 when stretching the display panel 01, thereby facilitating better staggering of the second encapsulation structure 23 and the corresponding first encapsulation structure 13, and further improving the reliability of the staggering of the first type of sub-pixels 131 and the second type of sub-pixels 231.

[0089] Optionally, as Figure 7 shown, in the second substrate 20, any fourth region 104 includes a second hollowed-out area 22A. To increase the stretchable amount of the second buffer layer 12 to a greater extent.

[0090] Please continue to refer to Figure 7 , in an embodiment of the present application, the second buffer layer 22 includes a plurality of second buffer modules 221 and a plurality of second connection bridges 222. The second buffer modules 221 are correspondingly arranged with the second encapsulation structures 23, and the second connection bridges 222 are connected to two adjacent second buffer modules 221.

[0091] Exemplarily, as Figure 7 shown, a second connection bridge 222 is provided between two adjacent second buffer modules 221 along the first direction X, and a second connection bridge 222 is provided between two adjacent second buffer modules 221 along the second direction Y.

[0092] Among them, the second encapsulation structure 23 may be provided on the second buffer module 221, and the second connection structure 24 may be provided on the second connection bridge 222.

[0093] In the direction perpendicular to the plane of the display panel 01, the projected area of the second encapsulation structure 23 is not greater than the projected area of the second buffer module 221. To ensure the reliability of the second buffer module 221 in carrying the first encapsulation structure 13.

[0094] Exemplarily, as Figure 7 shown, along the direction perpendicular to the plane of the display panel 01, the projected area of the second encapsulation structure 23 is smaller than the projected area of the second buffer module 221.

[0095] Exemplarily, as Figure 8As shown in the figure, along the direction Z perpendicular to the plane where the display panel 01 is located, the projection of the second encapsulation structure 23 and the second type of buffer module 221 on the same plane coincides.

[0096] Among them, the width of the second connection bridge 222 is smaller than the width of the second type of buffer module 221 it connects in the same direction.

[0097] For example, as Figure 7 shown in the figure, in the second connection bridge 222 extending along the first direction X, its maximum width in the second direction Y is W3, and the minimum width of the second type of buffer module 221 it is connected to in the second direction Y is W4, and W3 < W4.

[0098] In the embodiment of the present application, the second buffer layer 22 can be in an island bridge structure, which is beneficial to further increase the area of the second hollow area 22A, thereby being beneficial to further increasing the tensile deformation amount of the second buffer layer 22 and increasing the reliability of the misalignment between the first type of sub-pixels 131 and the second type of sub-pixels 231 in the stretched state.

[0099] Moreover, in the embodiment of the present application, the structure of the second substrate 20 is similar to that of the first substrate 10, which is beneficial to ensuring that the stretching amounts of the first substrate 10 and the second substrate 20 in the same direction tend to be consistent. While improving the reliability of the misalignment between the first type of sub-pixels 131 and the second type of sub-pixels 231 in the stretched state, it can also improve the structural stability and aesthetics of the display panel 01.

[0100] In an embodiment of the present application, please continue to refer to Figure 7 , the first type of buffer module 121 includes a first buffer module 1211 and a second buffer module 1212. The first buffer module 1211 is located in the first area 101, and the second buffer module 1212 is located in the second area 102.

[0101] Among them, the elastic modulus of the first buffer module 1211 is greater than the elastic modulus of the first elastic layer 11, and the elastic modulus of the second buffer module 1212 is less than the elastic modulus of the first elastic layer 11. That is, when stretching the display panel 01, the deformation amount of the first buffer module 1211 is less than the deformation amount of the first elastic layer 11, and the deformation amount of the second buffer module 1212 is greater than the deformation amount of the first elastic layer 11.

[0102] The second type of buffer module 221 includes a third buffer module 2211 and a fourth buffer module 2212. The third buffer module 2211 is located in the first area 101, and the fourth buffer module 2212 is located in the second area 102.

[0103] The elastic modulus of the third buffer module 2211 is smaller than that of the second elastic layer 21, and the elastic modulus of the fourth buffer module 2212 is larger than that of the second elastic layer 21. That is, when the display panel 01 is stretched, the deformation of the third buffer module 2211 is larger than that of the second elastic layer 21, and the deformation of the fourth buffer module 2212 is smaller than that of the second elastic layer 21.

[0104] In the embodiment of the present application, the first buffer module 1211 in the first area 101 is set to have a smaller stretching amount relative to the first elastic layer 11, and the third buffer module 2211 is set to have a larger stretching amount relative to the second elastic layer 21, which is beneficial to improving the reliability of the first buffer module 1211 driving the first packaging structure 13 and the third buffer module 2211 driving the second packaging structure 23 in the first area 101, thereby helping to improve the reliability of the mutual staggering of the first type of sub-pixel 131 and the second type of sub-pixel 231 in the first area 101.

[0105] Setting the second buffer module 1212 in the second area 102 to have a larger stretching amount relative to the first elastic layer 11, and setting the fourth buffer module 2212 to have a smaller stretching amount relative to the second elastic layer 21, is beneficial to improving the reliability of the second buffer module 1212 driving the first packaging structure 13 and the fourth buffer module 2212 driving the second packaging structure 23 in the second area 102, thereby helping to improve the reliability of the mutual staggering of the first type of sub-pixel 131 and the second type of sub-pixel 231 in the second area 102.

[0106] Moreover, both the first substrate 10 and the second substrate 20 include a buffer module with a larger elastic modulus and a buffer module with a smaller elastic modulus, which is beneficial to making the stretching amount of the first substrate 10 and the second substrate 20 in the same direction tend to be consistent. While improving the reliability of the mutual misalignment of the first type of sub-pixel 131 and the second type of sub-pixel 231 in the stretched state, it can also improve the structural stability and aesthetics of the display panel 01.

[0107] Optionally, the elastic modulus of the first elastic layer 11 is the same as that of the second elastic layer 21. In this way, the stretching amount of the first elastic layer 11 can be the same as that of the second elastic layer 21, which is conducive to further ensuring that the lengths of the first substrate 10 and the second substrate 20 after stretching are consistent.

[0108] Please continue to refer to Figure 1, in an embodiment of the present application, the first type of buffer module 121 includes a plurality of first buffer modules 1211 and a plurality of second buffer modules 1212, and both the first buffer module 1211 and the second buffer module 1212 are correspondingly arranged with the first encapsulation structure 13. The second type of buffer module 221 includes a plurality of third buffer modules 2211 and a plurality of fourth buffer modules 2212, and both the third buffer module 2211 and the fourth buffer module 2212 are correspondingly arranged with the second encapsulation structure 23.

[0109] Combined Figure 1 with Figure 7 shown, both the first buffer layer 12 and the second buffer layer 22 are island-bridge structures.

[0110] Optionally, in the contracted state of the display panel 01, along the direction Z perpendicular to the plane where the display panel 01 is located, the projected area of the third buffer module 2211 is not less than the projected area of the first buffer module 1211, and the projected area of the second buffer module 1212 is not less than the projected area of the fourth buffer module 2212. That is, in the same area, along the direction Z perpendicular to the plane where the display panel 01 is located, the projected area of the buffer module with a smaller elastic modulus is not less than the projected area of the buffer module with a larger elastic modulus.

[0111] In this way, when stretching the display panel 01, it is beneficial to ensure that the buffer module with a smaller elastic modulus can have a larger stretching deformation amount, which is beneficial to further ensure that the first type of sub-pixels 131 and the second type of sub-pixels 231 are staggered from each other.

[0112] Exemplarily, as Figure 1 shown, along the direction Z perpendicular to the plane where the display panel 01 is located, the projected area of the third buffer module 2211 is larger than the projected area of the first buffer module 1211, and the projected area of the second buffer module 1212 is larger than the projected area of the fourth buffer module 2212.

[0113] Exemplarily, as Figure 9 shown, Figure 9 is a schematic structural diagram of another contracted state of the display panel provided by the embodiment of the present application. Along the direction Z perpendicular to the plane where the display panel 01 is located, the projections of the third buffer module 2211 and the first buffer module 1211 on the same plane coincide, and the projections of the second buffer module 1212 and the fourth buffer module 2212 on the same plane coincide.

[0114] Optionally, as Figure 1As shown, in the contracted state of the display panel 01, along the direction Z perpendicular to the plane where the display panel 01 is located, the projection of the first type buffer module 121 on the plane where the first elastic layer 11 is located covers the projection of the first packaging structure 13 on the plane where the first elastic layer 11 is located. The projection of the second type buffer module 221 on the plane where the second elastic layer 21 is located covers the projection of the second packaging structure 23 on the plane where the second elastic layer 21 is located.

[0115] Since the first type buffer module 121 includes the first buffer module 1211 and the second buffer module 1212 which are arranged corresponding to the first packaging structure 13, and the second type buffer module 221 includes the third buffer module 2211 and the fourth buffer module 2212 which are arranged corresponding to the second packaging structure 23. Therefore, the projections of the first buffer module 1211 and the second buffer module 1212 on the plane where the first elastic layer 11 is located can both cover the projections of the first packaging structure 13 corresponding to them on the plane where the first elastic layer 11 is located. The projections of the third buffer module 2211 and the fourth buffer module 2212 on the plane where the second elastic layer 21 is located can both cover the projections of the second packaging structure 23 corresponding to them on the plane where the second elastic layer 21 is located.

[0116] Based on this arrangement, on the one hand, the bearing capacity of the first type buffer module 121 for the first encapsulation structure 13 and the bearing capacity of the second type buffer module 221 for the second encapsulation structure 23 can be improved, thereby facilitating the improvement of the structural stability of the display panel 01. On the other hand, it is beneficial to improve the mutual displacement capability of the first type buffer module 121 driving the first encapsulation structure 13 and the second type buffer module 221 driving the second encapsulation structure 23, thereby facilitating the improvement of the reliability of the first type sub-pixel 131 and the second type sub-pixel 231 being completely displaced in the stretched state.

[0117] In one embodiment of the present application, please continue to refer to Figure 1 , in the contracted state of the display panel 01, along the first direction X, the lengths of the second buffer module 1212 and the third buffer module 2211 are both d1, and the distance between two adjacent second buffer modules 1212 and the distance between two adjacent third buffer modules 2211 are both h1. The lengths of the first buffer module 1211 and the fourth buffer module 2212 are both d2, and the distance between two adjacent first buffer modules 1211 and the distance between two adjacent fourth buffer modules 2212 are both h2.

[0118] Among them, h1+d1=h2+d2, and h1≥0.5d1,h2=k d2,0.8≤k≤1.2.

[0119] Based on this setting method, in the first region 101 and the second region 102, the sum of the distances between the first type of buffer modules 121 and the distances between two adjacent first type of buffer modules 121 is equal to the sum of the distances between the corresponding second type of buffer modules 221 and the distances between two adjacent second type of buffer modules 221, and the distances between two adjacent first type of buffer modules 121 and the distances between two adjacent second type of buffer modules 221 are not too small. This is beneficial to making the corresponding first type of buffer modules 121 and second type of buffer modules 122 drive the first encapsulation structure 13 and the second encapsulation structure 23 to stagger from each other when the display panel 01 is stretched, thereby being beneficial to further improving the reliability of the complete staggering of the first type of sub-pixels 131 and the second type of sub-pixels 231.

[0120] Figure 10 This is another schematic plan view of the first substrate and the second substrate provided by the embodiment of the present application.

[0121] As Figure 10 shown, in an embodiment of the present application, the first buffer layer 12 includes a first hollowed-out area 12A, and the first hollowed-out area 12A includes a first sub-hollowed-out area 12A1 and a second sub-hollowed-out area 12A2. The first sub-hollowed-out area 12A1 is located in the first region 101, and the second sub-hollowed-out area 12A2 is located in the second region 102.

[0122] The second buffer layer 22 includes a second hollowed-out area 22A, and the second hollowed-out area 22A includes a third sub-hollowed-out area 22A1 and a fourth sub-hollowed-out area 22A2. The third sub-hollowed-out area 22A1 is located in the first region 101, and the fourth sub-hollowed-out area 22A2 is located in the second region 102.

[0123] Among them, the shape of the first sub-hollowed-out area 12A1 is different from the shape of the third sub-hollowed-out area 22A1, and the shape of the second sub-hollowed-out area 12A2 is different from the shape of the fourth sub-hollowed-out area 22A2. Here, the different shapes mean that they cannot coincide after being translated and placed together in the positive projection on the plane where the display panel 01 is located.

[0124] That is to say, in the first region 101, the shape of the first hollowed-out area 12A is different from the shape of the second hollowed-out area 22A, and in the second region 102, the shape of the first hollowed-out area 12A is different from the shape of the second hollowed-out area 22A.

[0125] In the embodiments of the present application, by setting that in the corresponding area, the shape of the first hollow area 12A is different from the shape of the second hollow area 22A, it is beneficial to achieve different stretching amounts of the first buffer layer 12 and the second buffer layer 22 in the same direction in the corresponding area, so that in the first area 101 and the second area 102, the first type of sub-pixels 131 and the second type of sub-pixels 231 can be staggered from each other in the direction perpendicular to the plane where the display panel 01 is located, thereby improving the display quality of the display panel 01 after stretching.

[0126] Optionally, as Figure 10 shown, in the first direction X, the length L1 of the first sub-hollow area 12A1 is greater than the width S3 of the third sub-hollow area 22A1, and the width S2 of the second sub-hollow area 12A2 is less than the length L4 of the fourth sub-hollow area 22A2.

[0127] In the second direction Y, the width S1 of the first sub-hollow area 12A1 is less than the length L3 of the third sub-hollow area 22A1, and the length L2 of the second sub-hollow area 12A2 is greater than the width S4 of the fourth sub-hollow area 22A2, and the first direction X intersects with the second direction Y.

[0128] Based on this setting method, when the display panel 01 is stretched along the first direction X, in the first area 101, the deformation amount of the second buffer layer 22 can be greater than the deformation amount of the first buffer layer 12, and in the second area 102, the deformation amount of the first buffer layer 12 can be greater than the deformation amount of the second buffer layer 22.

[0129] When the display panel 01 is stretched along the second direction Y, in the first area 101, the deformation amount of the first buffer layer 12 can be greater than the deformation amount of the second buffer layer 22, and in the second area 102, the deformation amount of the second buffer layer 22 can be greater than the deformation amount of the first buffer layer 12.

[0130] In this way, when the display panel 01 is stretched, it is beneficial to make the first buffer layer 12 and the second buffer layer 22 arranged correspondingly in the first area 101 and the second area 102 drive the first encapsulation structure 13 and the second encapsulation structure 23 to stagger from each other respectively, so as to achieve the complete staggering of the first type of sub-pixels 131 and the second type of sub-pixels 231 in the stretched state of the display panel 01.

[0131] Moreover, based on this setting method, in the same stretching direction, both the first buffer layer 12 and the second buffer layer 22 include parts with larger and smaller stretching amounts, which is also beneficial to make the stretching amounts of the first buffer layer 12 and the second buffer layer 22 tend to be consistent in the same direction, thereby being beneficial to improving the structural stability and aesthetics of the display panel 01.

[0132] Optionally, as Figure 10As shown, the shape of the first sub-hollow area 12A1 is the same as that of the fourth sub-hollow area 22A2, and the shape of the second sub-hollow area 12A2 is the same as that of the third sub-hollow area 22A1. Here, the same shape means that they can coincide after being translated together in the orthographic projection on the plane where the display panel 01 is located.

[0133] Based on this setting method, on the one hand, it is beneficial to reduce the structural complexity of the first hollow area 12A and the second hollow area 22A, thereby facilitating the reduction of the manufacturing difficulty of the display panel 01 and saving costs. On the other hand, it is beneficial to further make the stretching amounts of the first buffer layer 12 and the second buffer layer 22 in the same direction tend to be consistent, ensuring that the lengths of the first substrate 10 and the second substrate 20 are the same after the display panel 01 is stretched.

[0134] Optionally, as Figure 11 shown, Figure 11 This is another schematic plan view of the first substrate and the second substrate provided by the embodiment of the present application. The first sub-hollow area 12A1, the second sub-hollow area 12A2, the third sub-hollow area 22A1, and the fourth sub-hollow area 22A2 are all in a "cross" shape.

[0135] Among them, the maximum length L1 of the first sub-hollow area 12A1 in the first direction X is greater than its maximum width S1 in the second direction Y, the maximum width S2 of the second sub-hollow area 12A2 in the first direction X is less than its maximum length L2 in the second direction Y, the maximum width S3 of the third sub-hollow area 22A1 in the first direction X is less than its maximum length L3 in the second direction Y, and the maximum length L4 of the fourth sub-hollow area 22A2 in the first direction X is greater than its maximum width S4 in the second direction Y.

[0136] In this way, it is beneficial to increase the stretching deformation amounts of the first buffer layer 12 and the second buffer layer 22 in the corresponding areas, which is beneficial to further ensure that the first type of sub-pixels 131 and the second type of sub-pixels 231 are completely staggered in the stretched state of the display panel 01.

[0137] Please continue to refer to Figure 10 and Figure 11 , in an embodiment of the present application, the display panel 01 includes a first virtual central axis CC extending along the second direction Y, and the first virtual central axis CC is located between the first area 101 and the second area 102.

[0138] The first hollow area 12A further includes a fifth sub-hollow area 12A3, the second hollow area 22A further includes a sixth sub-hollow area 22A3, and the first virtual central axis CC extends through the fifth sub-hollow area 12A3 and the sixth sub-hollow area 22A3.

[0139] That is to say, the first buffer layer 12 and the second buffer layer 22 further include a hollowed-out area located at the position of the first virtual central axis CC.

[0140] The inventors of the present application have found through research that when stretching the display panel 01, the tensile force at the middle position of the display panel 01 is small, and there is a problem that the first type of sub-pixels 131 and the second type of sub-pixels 231 in the middle area of the display panel 01 cannot be completely staggered.

[0141] In view of this, in the embodiments of the present application, the fifth sub-hollowed-out area 12A3 and the sixth sub-hollowed-out area 22A3 are arranged in the area where the first virtual central axis CC is located, which is beneficial to increasing the tensile deformation amount of the first buffer layer 12 and the second buffer layer 22 in the area where the first virtual central axis CC is located. Thus, it is beneficial to improve the reliability of the complete staggering of the first buffer layer 12 and the second buffer layer 22 driving the first encapsulation structure 13 and the second encapsulation structure 23 respectively in the middle area of the display panel 01, and further beneficial to improving the reliability of the complete staggering of the first type of sub-pixels 131 and the second type of sub-pixels 231 in the middle area of the display panel 01.

[0142] Optionally, as Figure 10 and Figure 11 shown, both the fifth sub-hollowed-out area 12A3 and the sixth sub-hollowed-out area 22A3 are circular. In this way, it is beneficial to enable the first type of sub-pixels 131 and the second type of sub-pixels 231 in the middle area of the display panel 01 to be effectively staggered when stretching the display panel 01 in multiple directions.

[0143] Optionally, the materials of the first buffer layer 12 and the second buffer layer 22 are the same. In this way, it is beneficial to simplify the preparation process of the first buffer layer 12 and the second buffer layer 22 and reduce the preparation cost of the display panel 01.

[0144] Figure 12 This is another schematic plan view of the first substrate and the second substrate provided by the embodiments of the present application.

[0145] In an embodiment of the present application, as Figure 12 shown, in the first region 101, the materials of the first buffer layer 12 and the second buffer layer 22 are different, and the elastic modulus of the first buffer layer 12 is greater than that of the second buffer layer 22. In the second region 102, the materials of the first buffer layer 12 and the second buffer layer 22 are different, and the elastic modulus of the first buffer layer 12 is less than that of the second buffer layer 22.

[0146] In an embodiment of the present application, when the first sub-hollow area 12A1 and the third sub-hollow area 22A1 are provided in the first region 101, if the elastic modulus of the first buffer layer 12 is greater than that of the second buffer layer 22, then when the display panel 01 is stretched along the first direction X, it is beneficial to further increase the difference in the stretching deformation amounts between the second buffer layer 22 and the first buffer layer 12 in the first region 101.

[0147] When the second sub-hollow area 12A2 and the fourth sub-hollow area 22A2 are provided in the second region 102, if the elastic modulus of the first buffer layer 12 is less than that of the second buffer layer 22, then when the display panel 01 is stretched along the first direction X, it is beneficial to further increase the difference in the stretching deformation amounts between the second buffer layer 22 and the first buffer layer 12 in the second region 102.

[0148] In this way, the embodiment of the present application is beneficial to further increase the difference in the deformation amounts between the first buffer layer 12 and the second buffer layer 22 in the corresponding region, thereby being beneficial to further improving the reliability of the complete staggering of the first type of sub-pixels 131 and the second type of sub-pixels 231 in the stretched state.

[0149] It should be noted that in some other embodiments, if the display panel 01 is stretched along the second direction Y, it can also be as Figure 13 shown Figure 13 which is a schematic plan view of the first substrate and the second substrate provided by another embodiment of the present application. In the first region 101, the elastic modulus of the first buffer layer 12 is less than that of the second buffer layer 22. In the second region 102, the elastic modulus of the first buffer layer 12 is greater than that of the second buffer layer 22.

[0150] Figure 14 which is a schematic plan view of the first substrate and the second substrate provided by another embodiment of the present application.

[0151] In an embodiment of the present application, as Figure 14 shown, the first region 101 includes a first sub-region 1011 and a second sub-region 1012 extending along the second direction Y, and the second region 102 includes a third sub-region 1021 and a fourth sub-region 1022 arranged along the second direction Y. The second direction Y intersects with the first direction X.

[0152] Wherein, in any one of the first sub-region 1011, the second sub-region 1012, the third sub-region 1021, and the fourth sub-region 1022, the stretching amounts of the first buffer layer 12 and the second buffer layer 22 in the same direction are different.

[0153] In the embodiments of the present application, among the first sub-region 1011, the second sub-region 1012, the third sub-region 1021, and the fourth sub-region 1022, the stretching amounts of the first buffer layer 12 and the second buffer layer 22 in the same direction in any one of them are different. Then, according to the stretching direction of the display panel 01, the stretching amounts of each sub-region can be flexibly set, which is beneficial to achieving that when the display panel 01 is stretched in different directions, the first type of sub-pixels 131 and the second type of sub-pixels 231 can be completely staggered.

[0154] Optionally, as Figure 14 shown, the first sub-region 1011 and the third sub-region 1021 are arranged along the first direction X, and the second sub-region 1012 and the fourth sub-region 1022 are arranged along the first direction X. The stretching amounts of the first buffer layer 12 in the first sub-region 1011 and the fourth sub-region 1022 in the same direction are different from those of the first buffer layer 12 in the second sub-region 1012, and are also different from those of the first buffer layer 12 in the third sub-region 1021.

[0155] The stretching amounts of the second buffer layer 22 in the first sub-region 1011 and the fourth sub-region 1022 in the same direction are different from those of the second buffer layer 22 in the second sub-region 1012, and are also different from those of the second buffer layer 22 in the third sub-region 1021.

[0156] Based on this setting method, in the first direction X and the second direction Y, the buffer layers with different stretching amounts can be alternately arranged, which is beneficial to further achieving that when the display panel 01 is stretched in different directions, the first type of sub-pixels 131 and the second type of sub-pixels 231 can be completely staggered.

[0157] Exemplarily, as Figure 14 shown, in the first sub-region 1011, the elastic modulus of the first buffer layer 12 is greater than that of the second buffer layer 22; in the second sub-region 1012, the elastic modulus of the first buffer layer 12 is less than that of the second buffer layer 22; in the third sub-region 1021, the elastic modulus of the first buffer layer 12 is less than that of the second buffer layer 22; in the fourth sub-region 1022, the elastic modulus of the first buffer layer 12 is greater than that of the second buffer layer 22.

[0158] Among them, the first buffer layer 12 in the first sub-region 1011, the first buffer layer 12 in the fourth sub-region 1022, the second buffer layer 22 in the second sub-region 1012, and the second buffer layer 22 in the third sub-region 1021 can be made of the same material. The second buffer layer 22 in the first sub-region 1012, the second buffer layer 22 in the fourth sub-region 1022, the first buffer layer 12 in the second sub-region 1012, and the first buffer layer 12 in the third sub-region 1021 can be made of the same material.

[0159] In this way, when the display panel 01 is stretched in different directions, it is beneficial to achieve complete staggering of the first type of sub-pixels 131 and the second type of sub-pixels 231, and at the same time, it is beneficial to reduce the complexity of the display panel 01 and the manufacturing cost.

[0160] Figure 15 This is a schematic plan view of another first substrate and second substrate provided by an embodiment of the present application.

[0161] As Figure 15 shown, in an embodiment of the present application, the first region 101 includes a first sub-region 1011 and a second sub-region 1012 arranged along the first direction X, and the second region 102 includes a third sub-region 1021 and a fourth sub-region 1022 arranged along the first direction X. The first sub-region 1011, the second sub-region 1012, the third sub-region 1021, and the fourth sub-region 1022 are arranged in sequence.

[0162] In the first sub-region 1011, the second sub-region 1012, the third sub-region 1021, and the fourth sub-region 1022, the stretching amounts of the first buffer layer 12 and the second buffer layer 22 in any one of them in the same direction are different.

[0163] Among them, the stretching amount of the first buffer layer 12 in the first sub-region 1011 in the same direction as the first buffer layer 12 in the third sub-region 1021 is the same, and is different from the stretching amount of the first buffer layer 12 in the second sub-region 1012 in the same direction. The stretching amount of the first buffer layer 12 in the second sub-region 1012 in the same direction as the first buffer layer 12 in the fourth sub-region 1022 is the same.

[0164] The stretching amount of the second buffer layer 22 in the first sub-region 1011 in the same direction as the second buffer layer 22 in the third sub-region 1021 is the same, and is different from the stretching amount of the second buffer layer 22 in the second sub-region 1012 in the same direction. The stretching amount of the second buffer layer 22 in the second sub-region 1012 in the same direction as the second buffer layer 22 in the fourth sub-region 1022 is the same.

[0165] In the embodiment of the present application, along the first direction X, buffer layers with different stretching amounts can be alternately arranged. When the display panel 01 is stretched along the first direction X, it is easier to make the stretching amounts of the first buffer layer 12 and the second buffer layer 22 as a whole tend to be consistent. While realizing that the first type of sub-pixels 131 and the second type of sub-pixels 231 can be completely staggered, it is beneficial to further ensure that the lengths of the first substrate 10 and the second substrate 20 are the same in the stretched state.

[0166] In an embodiment of the present application, the display panel 01 has a double-sided display structure, and both the first type of sub-pixels 131 and the second type of sub-pixels 231 are bottom-emitting structures. Exemplarily, the structure of the display panel 01 can be as Figure 1 , Figure 4 , Figure 8 shown.

[0167] In this way, the first type of sub-pixels 131 can emit light toward the first elastic layer 11 side, and the second type of sub-pixels 231 can emit light toward the second elastic layer 21 side, thereby realizing the double-sided display of the display panel 01.

[0168] In the embodiment of the present application, both the first elastic layer 11 and the second elastic layer 21 can be prepared from light-transmitting elastic materials, which can not only realize the stretching of the display panel 01 but also avoid affecting the light emission of the sub-pixels.

[0169] In yet another embodiment of the present application, as shown in Figure 1 and Figure 2 , the display panel 01 has a single-sided display structure, and the first substrate 10 is located on the side of the second substrate 20 facing the light-emitting surface of the display panel 01. That is, the display panel 01 can display an image on the side of the first substrate 10.

[0170] Among them, the first type of sub-pixels 131 is a bottom-emitting structure, and the second type of sub-pixels 231 is a top-emitting structure.

[0171] That is to say, both the first type of sub-pixels 131 and the second type of sub-pixels 231 emit light toward the side of the first elastic layer 11.

[0172] In the embodiment of the present application, the side of the display panel 01 where the first elastic layer 11 is located is the light-emitting side, and the side of the display panel 01 where the second elastic layer 21 is located is the backlight side, and the display panel 01 can achieve single-sided display. Among them, the first elastic layer 11 can be prepared from a light-transmitting material to avoid affecting the light emission of the first type of sub-pixels 131 and the second type of sub-pixels 231. The second elastic layer 21 can be prepared from an opaque material or a material with a low light transmittance to avoid light leakage from the side of the second elastic layer 21.

[0173] Optionally, as shown in Figure 1As shown, in the contracted state of the display panel 01, the first type of sub-pixels 131 emit light, and the second type of sub-pixels 231 do not emit light. Since the first type of sub-pixels 131 have a bottom-emitting structure, the first type of sub-pixels 131 emit light toward the first elastic layer 11 side, realizing normal display in the contracted state of the display panel 01.

[0174] In the stretched state of the display panel 01, as Figure 2 shown, both the first type of sub-pixels 131 and the second type of sub-pixels 231 emit light. Since stretching can cause the first type of sub-pixels 131 and the second type of sub-pixels 231 to be staggered from each other, both the first type of sub-pixels 131 and the second type of sub-pixels 231 can emit light toward the first elastic layer 11 side, which can increase the number of sub-pixels in the display screen after stretching, thereby improving the resolution of the display panel 01 in the stretched state.

[0175] Figure 16 It is a schematic diagram of a display device provided by an embodiment of the present application.

[0176] An embodiment of the present application provides a display device 02. As Figure 16 shown, the display device 02 includes the display panel 01 provided in the above embodiment. Exemplarily, the display device 02 is an electronic device such as a mobile phone, a tablet computer, an in-vehicle display, a wearable display, etc., and the present application does not make specific limitations.

[0177] In the display device 02, if the stretching amounts of the first buffer layer 12 and the second buffer layer 22 in the same direction are different in the first region 101 and / or the second region 102, then when stretching the display panel 01, in the first region 101 and / or the second region 102, the distance that the first buffer layer 12 drives the first encapsulation structure 13 to move is different from the distance that the second buffer layer 22 drives the second encapsulation structure 23 to move. This is beneficial to staggering the first type of sub-pixels 131 in the first encapsulation structure 13 and the second type of sub-pixels 231 in the second encapsulation structure 23 in the direction perpendicular to the plane where the display panel 01 is located, so that after the display panel 01 is stretched, the second type of sub-pixels 231 are exposed for display, thereby increasing the number of sub-pixels available for the display screen after the display panel 01 is stretched, and further being beneficial to improving the resolution of the display screen of the display panel 01 after stretching and improving the display quality.

[0178] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the scope of protection of the present application.

Claims

1. A display panel, characterized in that: The method comprises a first substrate and a second substrate arranged opposite to each other, wherein the first substrate comprises a first elastic layer, a first buffer layer and a plurality of first packaging structures, each of the first packaging structures comprises at least one first-type sub-pixel, the first buffer layer is located between the first elastic layer and the first packaging structure, and the first packaging structure is located on a side of the first elastic layer facing the second substrate; The second substrate comprises a second elastic layer, a second buffer layer and a plurality of second packaging structures, each of the second packaging structures comprises at least one second-type sub-pixel, the second buffer layer is located between the second elastic layer and the second packaging structure, and the second packaging structure is located on a side of the second elastic layer facing the first substrate; The display panel includes a first area and a second area, the first area and the second area are arranged along a first direction; in the first area and / or the second area, the first buffer layer and the second buffer layer have different stretching amounts in the same direction.

2. The display panel according to claim 1, characterized in that: The display panel includes a contracted state and a stretched state. In the contracted state, the first encapsulation structure and the second encapsulation structure at least partially overlap along a direction perpendicular to the plane where the display panel is located; in the stretched state, the first encapsulation structure and the second encapsulation structure do not overlap along a direction perpendicular to the plane where the display panel is located.

3. The display panel according to claim 1, characterized in that: In the first region, an elastic modulus of the first buffer layer is different from an elastic modulus of the second buffer layer; and in the second region, an elastic modulus of the first buffer layer is different from an elastic modulus of the second buffer layer.

4. The display panel according to claim 3, characterized in that: In the first region, the elastic modulus of the first buffer layer is greater than that of the second buffer layer; and in the second region, the elastic modulus of the first buffer layer is less than that of the second buffer layer.

5. The display panel according to claim 4, characterized in that: The first buffer layer includes a first type of buffer module, the first type of buffer module includes a first buffer module and a second buffer module, the first buffer module is located in the first area, and the second buffer module is located in the second area; The second buffer layer includes a second type of buffer module, the second type of buffer module includes a third buffer module and a fourth buffer module, the third buffer module is located in the first area, and the fourth buffer module is located in the second area; The first buffer module has the same elastic modulus as the fourth buffer module, and the second buffer module has the same elastic modulus as the third buffer module.

6. The display panel according to claim 5, characterized in that: A plurality of the first packaging structures are arranged in an array along the first direction and a second direction, wherein the second direction intersects the first direction; The four first packaging structures arranged in an array along the first direction and the second direction enclose a third area, and the first buffer layer includes a first hollow area, and the first hollow area is located in the third area.

7. The display panel according to claim 6, characterized in that: Any one of the third regions includes the first hollow area.

8. The display panel according to claim 6, characterized in that: The first buffer layer includes a plurality of the first-type buffer modules and a plurality of first connecting bridges, the first-type buffer modules are arranged corresponding to the first packaging structure, and the first connecting bridge is connected to two adjacent first-type buffer modules; The width of the first connecting bridge is smaller than the width of the first type buffer module connected thereto in the same direction.

9. The display panel according to claim 6, characterized in that: A plurality of the second packaging structures are arranged in an array along the first direction and the second direction; The four second packaging structures arranged in an array along the first direction and the second direction form a fourth area, and the second buffer layer includes a second hollow area, and the second hollow area is located in the fourth area.

10. The display panel according to claim 9, characterized in that: Any one of the fourth regions includes the second hollow area.

11. The display panel according to claim 9, characterized in that: The second buffer layer includes a plurality of the second-type buffer modules and a plurality of second connecting bridges, the second-type buffer modules are arranged corresponding to the second packaging structure, and the second connecting bridge is connected to two adjacent second-type buffer modules; The width of the second connecting bridge is smaller than the width of the second-type buffer module connected thereto in the same direction.

12. The display panel according to claim 5, characterized in that: The elastic modulus of the first buffer module is greater than the elastic modulus of the first elastic layer, and the elastic modulus of the second buffer module is less than the elastic modulus of the first elastic layer; The elastic modulus of the third buffer module is smaller than the elastic modulus of the second elastic layer, and the elastic modulus of the fourth buffer module is larger than the elastic modulus of the second elastic layer.

13. The display panel according to claim 12, characterized in that: The elastic modulus of the first elastic layer is the same as the elastic modulus of the second elastic layer.

14. The display panel according to claim 5, characterized in that: The first type of buffer module includes multiple first buffer modules and multiple second buffer modules, and the first buffer modules and the second buffer modules are both arranged corresponding to the first packaging structure; the second type of buffer module includes multiple third buffer modules and multiple fourth buffer modules, and the third buffer modules and the fourth buffer modules are both arranged corresponding to the second packaging structure.

15. The display panel according to claim 14, characterized in that: In the contracted state of the display panel, along the first direction, the lengths of the second buffer module and the third buffer module are both d1, the distance between two adjacent second buffer modules and the distance between two adjacent third buffer modules are both h1, the lengths of the first buffer module and the fourth buffer module are both d2, the distance between two adjacent first buffer modules and the distance between two adjacent fourth buffer modules are both h2; Among them, h1+d1=h2+d2, and h1≥0.5d1,h2=k d2,0.8≤k≤1.

2.

16. The display panel according to claim 14, characterized in that: When the display panel is in a retracted state, along a direction perpendicular to the plane where the display panel is located, a projection area of ​​the third buffer module is not less than a projection area of ​​the first buffer module, and a projection area of ​​the second buffer module is not less than a projection area of ​​the fourth buffer module.

17. The display panel according to claim 14, characterized in that: When the display panel is in a contracted state, along a direction perpendicular to the plane where the display panel is located, the projection of the first type of buffer module on the plane where the first elastic layer is located covers the projection of the first packaging structure on the plane where the first elastic layer is located; the projection of the second type of buffer module on the plane where the second elastic layer is located covers the projection of the second packaging structure on the plane where the second elastic layer is located.

18. The display panel according to claim 1, characterized in that: The first buffer layer includes a first hollow area, the first hollow area includes a first sub-hollow area and a second sub-hollow area, the first sub-hollow area is located in the first area, and the second sub-hollow area is located in the second area; The second buffer layer includes a second hollow area, the second hollow area includes a third sub-hollow area and a fourth sub-hollow area, the third sub-hollow area is located in the first area, and the fourth sub-hollow area is located in the second area; Among them, the shape of the first sub-hollow area is different from the shape of the third sub-hollow area, and the shape of the second sub-hollow area is different from the shape of the fourth sub-hollow area.

19. The display panel according to claim 18, characterized in that: In the first direction, the length of the first sub-hollow area is greater than the width of the third sub-hollow area, and the width of the second sub-hollow area is less than the length of the fourth sub-hollow area; In the second direction, the width of the first sub-hollow area is smaller than the length of the third sub-hollow area, the length of the second sub-hollow area is larger than the width of the fourth sub-hollow area, and the second direction intersects with the first direction.

20. The display panel according to claim 19, characterized in that: The shape of the first sub-hollow area is the same as that of the fourth sub-hollow area, and the shape of the second sub-hollow area is the same as that of the third sub-hollow area.

21. The display panel according to claim 19, characterized in that: The display panel comprises a first virtual central axis extending along the second direction, the first virtual central axis being located between the first area and the second area; The first hollow area further includes a fifth sub-hollow area, the second hollow area further includes a sixth sub-hollow area, and the first virtual central axis passes through the fifth sub-hollow area and the sixth sub-hollow area.

22. The display panel according to claim 21, characterized in that: The fifth sub-hollow area and the sixth sub-hollow area are both circular.

23. The display panel according to claim 18, characterized in that: The first buffer layer and the second buffer layer are made of the same material.

24. The display panel according to claim 19, characterized in that: In the first region, the elastic modulus of the first buffer layer is greater than that of the second buffer layer; and in the second region, the elastic modulus of the first buffer layer is less than that of the second buffer layer.

25. The display panel according to claim 1, characterized in that: The first area includes a first sub-area and a second sub-area arranged along a second direction, the second area includes a third sub-area and a fourth sub-area arranged along the second direction, and the second direction intersects with the first direction; In any one of the first sub-region, the second sub-region, the third sub-region, and the fourth sub-region, the first buffer layer and the second buffer layer have different stretching amounts in the same direction.

26. The display panel according to claim 25, characterized in that: The first sub-region and the third sub-region are arranged along the first direction, and the second sub-region and the fourth sub-region are arranged along the first direction; The first buffer layer located in the first sub-region and the fourth sub-region has a different stretching amount in the same direction from that of the first buffer layer located in the second sub-region, and has a different stretching amount in the same direction from that of the first buffer layer located in the third sub-region; The second buffer layer located in the first sub-region and the fourth sub-region has a different stretching amount in the same direction from the second buffer layer located in the second sub-region and has a different stretching amount in the same direction from the second buffer layer located in the third sub-region.

27. The display panel according to claim 1, characterized in that: The display panel is a double-sided display structure, and both the first type of sub-pixels and the second type of sub-pixels are bottom-emitting structures.

28. The display panel according to claim 1, characterized in that: The display panel is a single-sided display structure, and the first substrate is located on a side of the second substrate facing the light emitting surface of the display panel; The first type of sub-pixels are bottom-emitting structures, and the second type of sub-pixels are top-emitting structures.

29. The display panel according to claim 28, characterized in that: When the display panel is in a contracted state, the first type of sub-pixels emit light, and the second type of sub-pixels do not emit light; when the display panel is in a stretched state, both the first type of sub-pixels and the second type of sub-pixels emit light.

30. The display panel according to claim 1, characterized in that: The first substrate further includes a first connection structure, which is electrically connected to two adjacent first packaging structures; the second substrate further includes a second connection structure, which is electrically connected to two adjacent second packaging structures.

31. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-30.

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