Display panel and display device

Abstract

The invention relates to the technical field of display, and relates to a display panel and a display device. The display panel comprises a display area and a peripheral area, the peripheral area is provided with a first blocking groove, a second blocking groove and a third blocking groove. The display panel comprises a substrate and a composite film layer, and the composite film layer located in the orthographic projection of the first blocking groove and the second blocking groove in the substrate is an inorganic matter. The composite film layer between the first barrier groove and the second barrier groove forms a first barrier part; at least one film layer structure in the composite film layer located in the orthographic projection of the third barrier groove in the substrate is an organic matter; the composite film layer between the second blocking groove and the third blocking groove forms a second blocking part; the peripheral area comprises a driving wiring area, at least part of the orthographic projection of the second blocking part on the substrate is in the driving wiring area, and the orthographic projection of the first blocking part on the substrate is outside the driving wiring area. The structure of the display panel is optimally designed, and the narrow frame design trend of the display panel can be met.

Description

Technical Field

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

[0002] With the continuous development of display technology, OLED (Organic Light-Emitting Diode) display panels have gradually become the mainstream technology in the display field due to their advantages such as high contrast, fast response and thinness. In the design of OLED display panels, GOA (Gate on Array) technology is widely used. GOA technology integrates the gate drive circuit on the array substrate of the display panel to realize the line-by-line scanning drive function, thereby reducing costs and simplifying the process.

[0003] However, in the existing OLED display panel design, the layout of the GOA wiring poses a challenge to the design of narrow borders. In order to protect the circuit of the display panel, a barrier (Dam) design is usually adopted in the related art to cut off the water and oxygen transmission channel. However, in actual applications, due to the existence of the GOA wiring, the Dam needs to make room for it in the horizontal direction, that is, the orthographic projection of the Dam and the GOA wiring on the substrate cannot overlap. Accordingly, the setting position of the Dam is limited. This design makes it impossible to further reduce the border area of ​​the display panel, affecting the development of the narrow border of the display panel.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute relevant technology known to ordinary technicians in the field. Summary of the invention

[0005] The purpose of the present disclosure is to overcome the deficiencies of the above-mentioned related technologies and to provide a display panel and a display device.

[0006] According to one aspect of the present disclosure, the present disclosure provides a display panel, comprising: a display area and a peripheral area surrounding at least part of the display area; the arrangement directions of the display area and the peripheral area form a first direction, the peripheral area is provided with a first blocking groove, a second blocking groove and a third blocking groove sequentially arranged in the first direction, and the first blocking groove is located on a side of the second blocking groove away from the display area;

[0007] The display panel includes a base substrate and a composite film layer located on one side of the base substrate, the composite film layer includes a plurality of film layer structures stacked in a second direction, the second direction being perpendicular to the first direction; in the orthographic projection of the base substrate, the material of each film layer structure located in the first barrier groove within the orthographic projection coverage area of ​​the base substrate is an inorganic substance, and the material of each film layer structure located in the second barrier groove within the orthographic projection coverage area of ​​the base substrate is an inorganic substance; a portion of the composite film layer located between the first barrier groove and the second barrier groove forms a first barrier portion; the first barrier portion is arranged around at least a portion of the display area;

[0008] In the orthographic projection of the base substrate, the material of at least one film layer structure of the composite film layer located in the orthographic projection coverage area of ​​the third blocking groove on the base substrate is organic; the portion of the composite film layer located between the second blocking groove and the third blocking groove forms a second blocking portion; the second blocking portion is arranged around at least a portion of the display area;

[0009] The peripheral area also includes a driving wiring area, at least part of the orthographic projection of the second blocking portion on the base substrate is located within the driving wiring area, and the orthographic projection of the first blocking portion on the base substrate is located outside the driving wiring area.

[0010] Optionally, the composite film layer comprises:

[0011] A base film layer, the base film layer at least comprising a first metal layer, located on a side of the base substrate away from the base substrate, and comprising a first sub-portion located in the peripheral area;

[0012] A first flat layer, located on a side of the base film layer away from the base substrate and covering the first metal layer, includes a first sub-portion located in the peripheral area; an orthographic projection of the first sub-portion of the first flat layer on the base substrate does not overlap with an orthographic projection of the first blocking groove on the base substrate, and an orthographic projection of the first sub-portion of the first flat layer on the base substrate does not overlap with an orthographic projection of the second blocking groove on the base substrate;

[0013] A pixel definition layer is located on the side of the first flat layer away from the base substrate, and includes a first sub-portion located in the peripheral area; the orthographic projection of the first sub-portion of the pixel definition layer on the base substrate does not overlap with the orthographic projection of the first blocking groove on the base substrate, and the orthographic projection of the first sub-portion of the pixel definition layer on the base substrate does not overlap with the orthographic projection of the second blocking groove on the base substrate.

[0014] Optionally, the second blocking portion includes a sub-blocking portion, and the sub-blocking portion includes a first sub-portion of the pixel definition layer; the first sub-portion of the first planar layer forms a groove bottom of the third blocking groove.

[0015] Optionally, the second blocking portion includes a sub-blocking portion, and the sub-blocking portion includes a first sub-portion of the pixel definition layer and a first sub-portion of the first planar layer;

[0016] The first sub-portion of the first metal layer forms the bottom of the third blocking groove;

[0017] Alternatively, the first subportion of the first planar layer and the first subportion of the first metal layer form a bottom of the third barrier groove, and the first subportion of the first metal layer forming the bottom of the third barrier groove is connected to the sidewall of the third barrier groove formed by the sub-barrier portion.

[0018] Optionally, the second barrier portion includes at least two sub-barrier portions, each two of the sub-barrier portions are separated by a sub-barrier groove, at least two of the sub-barrier portions are arranged at intervals in the first direction, and each of the second barrier portions is arranged around at least a portion of the display area;

[0019] The first sub-portion of the first planar layer forms the bottom of the third barrier groove;

[0020] Alternatively, the first sub-portion of the first metal layer forms the bottom of the third blocking groove;

[0021] Alternatively, the first subportion of the first planar layer and the first subportion of the first metal layer form a bottom of the third barrier groove, and the first subportion of the first metal layer forming the bottom of the third barrier groove is connected to the sidewall of the third barrier groove formed by the sub-barrier portion.

[0022] Optionally, the second blocking portion includes two sub-blocking portions and a sub-blocking groove, wherein:

[0023] The sub-blocking portion close to the display area in the first direction includes a first sub-portion of the pixel definition layer; the first sub-portion of the first planar layer forms the bottom of the third blocking groove;

[0024] The sub-blocking portion away from the display area in the first direction includes a first sub-portion of the pixel definition layer and a first sub-portion of the first planar layer; the first metal layer forms a groove bottom of the sub-blocking groove.

[0025] Optionally, along the first direction, the width of the sub-blocking portion ranges from 5 μm to 20 μm.

[0026] Optionally, along the first direction, a width of the first barrier portion ranges from 20 μm to 40 μm.

[0027] Optionally, the first blocking portion is arranged around the display area;

[0028] And / or, the second blocking portion is arranged around the display area.

[0029] Optionally, the composite film layer further comprises:

[0030] The first electrode layer is located on the side of the first flat layer away from the base substrate, including a first sub-portion located in the peripheral area; and the pixel definition layer covers the first sub-portion of the first electrode layer away from the base substrate, and the pixel definition layer covers the side surface of the first electrode layer away from the display area on the side of the cutoff edge.

[0031] Optionally, the peripheral area includes a bottom area located at the bottom of the display panel; two rounded corner areas and a connecting area located between the two rounded corner areas are provided in the bottom area, a first sub-portion of the first electrode layer located in the rounded corner area has a first cut-off edge line in an orthographic projection of the base substrate, the first cut-off edge line has a first distance from a boundary of the peripheral area on a side away from the display area, a first sub-portion of the first electrode layer located in the connecting area has a second cut-off edge line in an orthographic projection of the base substrate, the second cut-off edge line has a second distance from a boundary of the peripheral area on a side away from the display area, and the first distance is greater than the second distance;

[0032] An auxiliary blocking portion is provided in the rounded corner area; the orthographic projection of the auxiliary blocking portion on the base substrate is located within the orthographic projection of the second blocking groove on the base substrate, and the auxiliary blocking portion is spaced apart from the first blocking portion and the second blocking portion in the first direction; the auxiliary blocking portion includes a first structural layer and a second structural layer stacked in the first direction, the first structural layer and the first sub-portion of the first flat layer are arranged in the same layer, and the second structural layer and the first sub-portion of the pixel definition layer are arranged in the same layer; and at least a part of the first cut-off edge line is located within the orthographic projection of the auxiliary blocking portion on the base substrate.

[0033] Optionally, within the orthographic projection of the base substrate, an extension length of the auxiliary barrier portion is greater than 2000 μm.

[0034] Optionally, the peripheral area further includes a power wiring area, and the power wiring area is located on a side of the drive wiring area away from the display area in the first direction;

[0035] The base film layer also includes:

[0036] The first sub-portion of the first metal layer includes a first portion located in a power routing area;

[0037] A second planar layer, located between the first metal layer and the substrate, including a first sub-portion located in the peripheral area;

[0038] A second metal layer, located between the base substrate and the second flat layer, includes a first sub-portion located in the peripheral area, the first sub-portion of the second metal layer includes a first portion located in the power wiring area and a second portion located in the drive wiring area;

[0039] A third planar layer, located between the second metal layer and the substrate, including a first sub-portion located in the peripheral area;

[0040] A third metal layer is located between the substrate and the third flat layer, and includes a first sub-portion located in the peripheral area; the first sub-portion of the third metal layer includes a first portion located in the power wiring area and a second portion located in the drive wiring area;

[0041] The first portion of the first metal layer, the first portion of the second metal layer and the first portion of the third metal layer overlap, and the overlapping position of the first sub-portion of the first metal layer, the first portion of the second metal layer and the first portion of the third metal layer in the orthographic projection of the base substrate is located within the orthographic projection of the second blocking groove on the base substrate.

[0042] Optionally, the peripheral area is further provided with at least one crack blocking portion, which is arranged along the first direction on a side of the first blocking portion away from the second blocking portion and is spaced apart from the first blocking portion; the crack blocking portion is arranged around the display area.

[0043] Optionally, the number of the crack blocking parts is greater than 2 and less than 5; and adjacent crack blocking parts are spaced apart in the first direction.

[0044] According to another aspect of the present disclosure, the present disclosure provides a display device, including a display panel provided by any of the above technical solutions.

[0045] It should be noted that the display panel provided by the present disclosure can prevent the material from diffusing from the display area to the peripheral area during the preparation of the display panel by setting up the first barrier part and the second barrier part, thereby improving the yield of the display panel. At the same time, the display panel provided by the present disclosure sets the first barrier part on the side of the second barrier part away from the display area, and removes the inorganic material in the first barrier groove and the second barrier groove, which can effectively prevent water and oxygen from penetrating and diffusing from the periphery of the display panel to the inside, thereby improving the reliability and service life of the display panel.

[0046] Furthermore, the display panel provided by the present invention is designed such that at least part of the orthographic projection of the second barrier portion on the base substrate is located within the driving wiring area, so that the second barrier portion does not need to be spaced apart from the driving wiring area in the first direction, and the setting positions of the second barrier portion and the first barrier portion can be brought closer to the display area in the first direction, thereby facilitating the reduction of the size of the peripheral area in the first direction to meet the narrow bezel design of the display panel.

[0047] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0049] Figure 1 A partial plan view of a display panel provided in an embodiment of the present disclosure;

[0050] Figure 2 for Figure 1 The middle part shows a schematic cross-sectional view of the panel along line AA;

[0051] Figure 3 For the corresponding Figure 2 A plan view of a first flat layer of the display panel;

[0052] Figure 4 Another cross-sectional schematic diagram of a display panel provided by an embodiment of the present disclosure;

[0053] Figure 5 For the corresponding Figure 4 A plan view of a first flat layer of the display panel;

[0054] Figure 6 A schematic plan view of a display panel provided in an embodiment of the present disclosure;

[0055] Figure 7 for Figure 6 Schematic diagram of the cross section at the middle M position;

[0056] Figure 8 A first plan view schematically showing a display panel in a rounded corner area provided by an embodiment of the present disclosure;

[0057] Fig. 9 A second schematic plan view of a display panel in a rounded corner area provided by an embodiment of the present disclosure;

[0058] Fig.10 for Fig. 9 The enlarged schematic diagram of W1 in the middle;

[0059] Fig.11 for Fig. 9 The enlarged schematic diagram of W2 in the middle;

[0060] Fig.12 for Fig. 9 The enlarged schematic diagram of W3 in the middle;

[0061] Fig.13 For the corresponding Fig. 9 Schematic diagram of the display panel cross section in the mid-plan view.

[0062] Reference numerals:

[0063] 01, display area; 02, peripheral area; 021, bottom area; 021-1, fillet area; 021-2, connection area; 03, drive wiring area; 04, power wiring area; 100, substrate; 200, composite film layer; 210, base film layer; 211, first metal layer; 212, second flat layer; 213, second metal layer; 213-1, first part; 213-2, second part; 214, third flat layer; 215, third metal layer; 215-1, first part; 215-2, second part; 220, first planar layer; 230, pixel definition layer; 240, first electrode layer; 250; spacer layer; G1, first blocking groove; G2, second blocking groove; G3, third blocking groove; G4, sub-blocking groove; P1, first blocking part; P2, second blocking part; P21, sub-blocking part; P3, auxiliary blocking part; P4, crack blocking part. DETAILED DESCRIPTION

[0064] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present disclosure will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0065] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of the illustration to another component, these terms are used in this specification only for convenience, such as according to the orientation of the examples described in the drawings. It is understood that if the device of the illustration is turned upside down, the component described as "upper" will become the component "lower". When a structure is "on" other structures, it may mean that the structure is formed integrally on the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

[0066] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusion and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.; the terms "first", "second" and "third" etc. are used merely as labels and are not quantitative limitations.

[0067] Figure 1 A partial plan view of a display panel provided in an embodiment of the present disclosure; Figure 1 As shown, the embodiment of the present disclosure provides a display panel, which includes: a display area 01 and a peripheral area 02 surrounding at least part of the display area 01, the display area 01 is used to display images, and the peripheral area 02 is used to accommodate various circuits and structures. Figure 1 As shown, the arrangement direction of the display area 01 and the peripheral area 02 forms a first direction. When preparing the display area 01 of the display panel, IJP (Ink-Jet Printing) technology may be used to spray liquid luminescent materials to a specified position using a nozzle to form a pixel array, thereby realizing the manufacture of the display panel.

[0068] Figure 2 for Figure 1 The cross-sectional diagram of the panel along the AA line is shown in the figure. Figure 2 refer to Figure 1 In the structure shown, the peripheral area 02 is provided with a first barrier groove G1, a second barrier groove G2 and a third barrier groove G3 which are arranged in sequence in the first direction, and the first barrier groove G1 is located on the side of the second barrier groove G2 away from the display area 01. It can be understood that Figure 2 The first barrier groove G1 , the second barrier groove G2 , and the third barrier groove G3 are schematically separated by a dotted line frame, and the specific form of each barrier groove is not limited thereto.

[0069] like Figure 2As shown, the display panel provided by the embodiment of the present disclosure includes a base substrate 100 and a composite film layer 200 located on one side of the base substrate 100, and the composite film layer 200 includes a plurality of film layer structures stacked in a second direction (perpendicular to the first direction). It can be understood that the material of the film layer structure can be inorganic or organic.

[0070] In the specific implementation process, the base substrate 100 included in the display panel can be a rigid substrate or a flexible substrate, which is not limited here. When the base substrate 100 is a flexible substrate, the material of the flexible substrate can be a polyimide film (PI) or polyethylene terephthalate (PET), etc., which is not limited here. The flexible substrate can be a structure including a single-layer flexible base layer, or a structure including multiple layers of flexible base layers, such as a structure with two layers of flexible base layers, or a structure with three layers of flexible base layers, which is not limited here. In addition, a support layer (Barrier) can be set between two adjacent flexible base layers.

[0071] like Figure 2 As shown, in the orthographic projection of the base substrate 100, the material of each film layer structure located in the first barrier groove G1 within the orthographic projection coverage area of ​​the base substrate 100 is inorganic, and the material of each film layer structure located in the second barrier groove G2 within the orthographic projection coverage area of ​​the base substrate 100 is inorganic; and the portion of the composite film layer 200 located between the first barrier groove G1 and the second barrier groove G2 forms a first barrier portion P1; the first barrier portion P1 is arranged around at least a portion of the display area 01, thereby providing protection for the display area 01.

[0072] It is understandable that inorganic materials have good barrier properties and can effectively prevent water and oxygen penetration and material diffusion; organic materials are usually hygroscopic and easily lead to water and oxygen intrusion, thereby affecting the performance and life of the display panel. In the embodiment of the present disclosure, it is configured that: the film layer structures on both sides of the first barrier part P1 in the first direction are inorganic. In other words, the organic film layers on both sides of the first barrier part P1 in the first direction are dug out to cut off the water and oxygen channels, which can effectively block the intrusion of external water and oxygen and form a better packaging effect.

[0073] like Figure 2 As shown, in the orthographic projection of the base substrate 100, the material of at least one film layer structure of the composite film layer 200 located in the orthographic projection coverage area of ​​the third blocking groove G3 on the base substrate 100 is organic; the portion of the composite film layer 200 located between the second blocking groove G2 and the third blocking groove G3 forms a second blocking portion P2; the second blocking portion P2 is arranged around at least a portion of the display area 01.

[0074] like Figure 1As shown, the peripheral area 02 also includes a drive wiring area 03, also called a GOA area. The drive wiring area 03 includes a plurality of GOA wirings, which are circuit wirings used to implement gate drive functions in the display panel. Figure 2 As shown, at least part of the orthographic projection of the second blocking portion P2 on the base substrate 100 is located within the driving wiring area 03 , and the orthographic projection of the first blocking portion P1 on the base substrate 100 is located outside the driving wiring area 03 .

[0075] It can be understood that the GOA wiring is a metal wire, which needs to be covered by an organic layer for insulation, and the organic layer located in the third blocking groove G3 can be used as a film structure covering the GOA. Therefore, at least part of the orthographic projection of the second blocking portion P2 on the base substrate 100 can be located in the driving wiring area 03.

[0076] It should be noted that the display panel provided by the embodiment of the present disclosure can prevent the material from diffusing from the display area 01 to the peripheral area 02 during the preparation of the display panel by setting the first barrier part P1 and the second barrier part P2, thereby improving the yield of the display panel. At the same time, the display panel provided by the embodiment of the present disclosure sets the first barrier part P1 on the side of the second barrier part P2 away from the display area 01, and removes the inorganic material in the first barrier groove G1 and the second barrier groove G2, which can effectively prevent water and oxygen from penetrating and diffusing from the periphery of the display panel to the inside, thereby improving the reliability and service life of the display panel.

[0077] Furthermore, the display panel design provided by the embodiment of the present disclosure has the second barrier portion P2 whose orthographic projection on the base substrate 100 is at least partially located within the driving wiring area 03, so that the second barrier portion P2 does not need to be spaced apart from the driving wiring area 03 in the first direction, and the second barrier portion P2 and the first barrier portion P1 can be positioned closer to the display area 01 in the first direction, thereby facilitating the reduction of the size of the peripheral area 02 in the first direction and satisfying the narrow bezel design of the display panel.

[0078] like Figure 2 As shown, in one embodiment of the present disclosure, the composite film layer 200 includes: a base film layer 210, a first flat layer 220 and a pixel definition layer 230 sequentially stacked in the second direction, wherein:

[0079] The base film layer 210 at least includes a first metal layer 211, which is located on the side of the base substrate 100 away from the base substrate 100, and includes a first sub-portion located in the peripheral area 02. It is understandable that the base film layer 210 may include only one film layer structure, namely the first metal layer 211; or, the base film layer 210 includes multiple film layer structures stacked in the second direction. Further, when the base film layer 210 includes multiple film layer structures stacked in the second direction, the first metal layer 211 in the multiple film layer structures is located on the side of the other film layer structures away from the base substrate 100.

[0080] The first flat layer 220 is located on the side of the base film layer 210 away from the base substrate 100 and covers the first metal layer 211, including a first sub-portion located in the peripheral area 02; the orthographic projection of the first sub-portion of the first flat layer 220 on the base substrate 100 does not overlap with the orthographic projection of the first blocking groove G1 on the base substrate 100, and the orthographic projection of the first sub-portion of the first flat layer 220 on the base substrate 100 does not overlap with the orthographic projection of the second blocking groove G2 on the base substrate 100;

[0081] The pixel definition layer 230 is located on the side of the first flat layer 220 away from the base substrate 100, and includes a first sub-portion located in the peripheral area 02; the orthographic projection of the first sub-portion of the pixel definition layer 230 on the base substrate 100 does not overlap with the orthographic projection of the first blocking groove G1 on the base substrate 100, and the orthographic projection of the first sub-portion of the pixel definition layer 230 on the base substrate 100 does not overlap with the orthographic projection of the second blocking groove G2 on the base substrate 100.

[0082] It is understood that the pixel definition layer 230 also includes a second sub-portion located in the display area 01 to define the pixel opening area. The second sub-portion of the pixel definition layer 230 is prepared in the same layer as the first sub-portion. Similarly, the first planar layer 220 also includes a second sub-portion located in the display area 01, and the details are not repeated here.

[0083] It is worth noting that the preparation material of the pixel definition layer 230 and the first planar layer 220 can be organic. Therefore, when the preparation material of the pixel definition layer 230 is organic, the first sub-portion of the pixel definition layer 230 is dug out at the portion corresponding to the first blocking groove G1 and the second blocking groove G2; when the preparation material of the first planar layer 220 is organic, the first sub-portion of the first planar layer 220 is dug out at the portion corresponding to the first blocking groove G1 and the second blocking groove G2.

[0084] When the second barrier portion P2 is provided, there are many possible structural forms of the second barrier portion P2, and the second barrier portion P2 may be at least one of the following structural forms.

[0085] Structural form 1, such as Figure 1 and Figure 2As shown, the second blocking portion P2 includes at least two sub-blocking portions P21, each two sub-blocking portions P21 are separated by a sub-blocking groove G4, at least two sub-blocking portions P21 are spaced apart in the first direction, and each second blocking portion P2 is arranged around at least a portion of the display area 01.

[0086] It should be noted that when the display panel is prepared by using the IJP technology, the liquid luminescent material sprayed from the nozzle will have a tendency to flow from the display area 01 to the peripheral area 02. At this time, the liquid luminescent material can flow into the third blocking groove G3. At this time, the first sub-blocking part close to the display area 01 in the second blocking part P2 preliminarily blocks the liquid luminescent material. If the liquid luminescent material continues to flow into the sub-blocking groove G4, the liquid luminescent material can be blocked again by the remaining sub-blocking parts. Accordingly, the structural setting in this structural form can prevent the liquid luminescent material from overflowing along the first direction to a greater extent, and can improve the yield of the display panel.

[0087] It is understandable that the number of sub-blocking portions P21 in the second blocking portion P2 can be set according to demand. Of course, since the size of the peripheral area 02 in the first direction is limited, the number of sub-blocking portions in the second blocking portion cannot be set infinitely.

[0088] As an example, take the second blocking portion P2 including two sub-blocking portions P21, and a sub-blocking groove G4 is provided between the two sub-blocking portions P21. In this case, the frame area of ​​the display panel is provided with a total of four blocking grooves, such as a first blocking groove G1, a second blocking groove G2, a third blocking groove G3, and a sub-blocking groove G4 located between the second blocking groove G2 and the third blocking groove G3.

[0089] As another example, take the second blocking portion P2 including three sub-blocking portions P21, and a sub-blocking groove G4 is provided between two sub-blocking portions P21. In this case, the border area of ​​the display panel is provided with a total of five blocking grooves, such as a first blocking groove G1, a second blocking groove G2, a third blocking groove G3, and two sub-blocking grooves G4 located between the second blocking groove G2 and the third blocking groove G3.

[0090] When forming the third blocking groove G3, the first sub-portion of the pixel definition layer 230 may be excavated at the position corresponding to the third blocking groove G3, so that the first sub-portion of the first planar layer 220 forms the bottom of the third blocking groove G3. Alternatively, the first sub-portion of the pixel definition layer 230 and the first sub-portion of the first planar layer 220 may be excavated at the position corresponding to the third blocking groove G3, so that the first sub-portion of the first planar layer 220 and the first sub-portion of the first metal layer 211 form the bottom of the third blocking groove G3. At this time, it should be noted that the first sub-portion of the first metal layer 211 forming the bottom of the third blocking groove G3 is connected to the side wall of the third blocking groove G3 formed by the sub-blocking portion P21, so that the sub-blocking portion P21 can better play a blocking role.

[0091] It is worth noting that when forming the sub-blocking groove G4, the first sub-portion of the pixel definition layer 230 can be dug out at the position corresponding to the sub-blocking groove G4, so that the first sub-portion of the first flat layer 220 forms the bottom of the sub-blocking groove G4. Alternatively, the first sub-portion of the pixel definition layer 230 and the first sub-portion of the first flat layer 220 can be dug out at the position corresponding to the sub-blocking groove G4, so that the first sub-portion of the first flat layer 220 and the first sub-portion of the first metal layer 211 form the bottom of the sub-blocking groove G4. At this time, it should be noted that the first sub-portion of the first metal layer 211 forming the bottom of the sub-blocking groove G4 is connected to the side wall of the sub-blocking groove G4 formed by the sub-blocking portion P21, so that the sub-blocking portion P21 can better play a blocking role.

[0092] Accordingly, in combination with the structural design of the third blocking groove and the sub-blocking groove, the display panel provided by the embodiment of the present disclosure has a variety of possible structures.

[0093] Please continue to refer to Figure 1 and Figure 2 In the structure shown, in a specific embodiment, the second blocking portion P2 includes two sub-blocking portions P21 and a sub-blocking groove G4, wherein:

[0094] The sub-blocking portion P21 close to the display area 01 in the first direction includes a first sub-portion of the pixel definition layer 230; the first sub-portion of the first planar layer 220 forms the bottom of the third blocking groove G3;

[0095] The sub-blocking portion P21 in the first direction and away from the display area 01 includes a first sub-portion of the pixel definition layer 230 and a first sub-portion of the first planar layer 220 ; the first metal layer 211 forms the bottom of the sub-blocking groove G4 .

[0096] It should be noted that, in this specific embodiment, only the pixel definition layer 230 is dug out in the third blocking groove G3 to form the first sub-blocking portion P21, which has a relatively low height in the second direction, has a certain effect of blocking the IJP, and does not affect the GOA wiring below, and can shorten the distance from the display area 01. The sub-blocking groove G4 digs out the pixel definition layer 230 and the first flat layer 220 to form the second sub-blocking portion P21, so as to control the height of the sub-blocking portion P21, minimize the risk of residue in the sub-blocking groove G4 when the TSP (Touch Screen Panel) wiring crossover is prepared later, and can improve the yield of the display panel.

[0097] Structural form 2, the second barrier portion P2 includes a sub-barrier portion P21 (refer to Figure 2 The first sub-blocking portion P21 near the display area 01 in the middle), the sub-blocking portion P21 includes the first sub-portion of the pixel definition layer 230; the first sub-portion of the first planar layer 220 forms the bottom of the third blocking groove G3 (reference Figure 2 It can be understood that when the second barrier portion P2 includes only one sub-barrier portion P21, the sub-barrier portion P21 is the second barrier portion P2.

[0098] Specifically, in the embodiment of the present disclosure, the first sub-portion of the pixel definition layer 230 is dug out at the position corresponding to the third blocking groove G3, so that the first sub-portion of the first planar layer 220 covered by the first sub-portion of the pixel definition layer 230 is exposed to form the bottom of the third blocking groove G3.

[0099] It should be noted that when the IJP technology is used to prepare a display panel, the liquid luminescent material sprayed from the nozzle will tend to flow from the display area 01 to the peripheral area 02. At this time, the liquid luminescent material can flow into the third barrier groove G3 and be initially blocked by the second barrier portion P2 formed by the first sub-portion of the pixel definition layer 230, which can prevent the liquid luminescent material from further overflowing along the first direction to a certain extent, thereby improving the yield of the display panel.

[0100] At the same time, since the second barrier portion in the present structure is formed only by the first sub-portion of the pixel definition layer 230, it does not affect the metal layer between the pixel definition layer 230 and the base substrate 100, and accordingly does not affect the GOA routing below. The distance between the second barrier portion P2 and the display area 01 in the first direction can be shortened, thereby facilitating a narrow frame design of the display panel.

[0101] Structural form three, the second barrier portion P2 includes a sub-barrier portion P21 (refer to Figure 2The second sub-blocking portion P21 near the display area 01 in the middle), the sub-blocking portion P21 includes the first sub-portion of the pixel definition layer 230 and the first sub-portion of the first planar layer 220; the first sub-portion of the first metal layer 211 forms the bottom of the third blocking groove G3 (refer to Figure 2 Sub-blocking groove G4).

[0102] The difference between the present structural form three and the structural form two is that the sub-blocking portion P21 in the present structural form includes a two-layer film structure, and the groove depth of the third blocking groove G3 changes. Specifically, in the embodiment of the present disclosure, the first sub-portion of the pixel definition layer 230 is dug out at a position corresponding to the third blocking layer, and the first sub-portion of the first planar layer 220 covered by the first sub-portion of the pixel definition layer 230 is also dug out at a position corresponding to the third blocking groove G3, and the first metal layer 211 forms the groove bottom of the third blocking groove G3.

[0103] Structural form four, such as Figure 4 As shown, the second blocking portion P2 includes a sub-blocking portion P21, and the sub-blocking portion P21 includes a first sub-portion of the pixel definition layer 230 and a first sub-portion of the first planar layer 220; the first sub-portion of the first planar layer 220 and the first sub-portion of the first metal layer 211 form the bottom of the third blocking groove G3, and the first sub-portion of the first metal layer 211 forming the bottom of the third blocking groove G3 is connected to the side wall of the third blocking groove G3 formed by the sub-blocking portion P21.

[0104] It is understandable that the difference between the structure form 4 and the structure form 3 is that the excavation position of the first flat layer 220 is different. Specifically, the first flat layer 220 is not completely excavated at the position corresponding to the third blocking groove G3.

[0105] It should be noted that in this structural form, the groove depth of the third blocking groove G3 includes two depths, one is the depth d1 of the groove bottom portion formed by the first sub-portion of the first flat layer 220, and the other is the depth d2 of the groove bottom portion formed by the first sub-portion of the first metal layer 211, and d1 is significantly smaller than d2. Accordingly, the structural setting in this structural form can prevent the subsequent TSP routing from remaining in the third blocking groove G3 when crossing the line, and can improve the yield of the display panel.

[0106] In one embodiment of the present disclosure, along the first direction, the width of the sub-blocking portion P21 ranges from 5 μm to 20 μm, so as to rationally plan the space occupied by the sub-blocking portion P21 in the first direction, which is conducive to miniaturization of the display panel while ensuring the blocking effect.

[0107] In one embodiment of the present disclosure, along the first direction, the width of the first barrier portion P1 ranges from 20 μm to 40 μm, so as to rationally plan the space occupied by the first barrier portion P1 in the first direction, which is conducive to miniaturization of the display panel while ensuring the barrier effect.

[0108] When the first barrier portion P1 and the second barrier portion P2 are provided, Figure 6 As shown, in one embodiment of the present disclosure, the first barrier portion P1 is disposed around the display area 01, and the second barrier portion P2 is also disposed around the display area 01, so as to effectively protect the display area 01 from all directions. Specifically, the second barrier portion P2 can block the liquid luminescent material from all directions to prevent it from further overflowing along the first direction, thereby improving the yield of the display panel; the first barrier portion P1 forms a barrier structure surrounding the display area 01, which can cut off the water and oxygen transmission channels in all directions, further ensuring the stability of the display area 01.

[0109] Of course, the first blocking portion P1 may be arranged to surround a portion of the display area 01 , or the second blocking portion P2 may be arranged to surround a portion of the display area 01 , and the details will not be repeated here.

[0110] Alternatively, please continue to refer to Figure 6 The structure shown can also be provided with different structural arrangements of the first barrier portion P1, the second barrier portion P2, the first barrier groove G1, the second barrier groove G2 and the third barrier groove G3 at different positions in the display panel peripheral area 02. For example, Figure 2 and Figure 3 The structure shown can be applied to the normal position at the bottom of the peripheral area 02, such as Figure 4 and Figure 5 The structure shown can be applied to the TSP crossover position at the bottom of the peripheral region 02 to prevent the subsequent TSP routing from remaining in the blocking groove when crossing the line.

[0111] Understandably, Figure 3 and Figure 5 The filled portion represents the cutout area of ​​the pixel definition layer 230 .

[0112] In one embodiment of the present disclosure, Figure 7 As shown, the composite film layer 200 further includes: a first electrode layer 240, located on the side of the first flat layer 220 away from the base substrate 100, including a first sub-portion located in the peripheral area 02; and a pixel definition layer 230 covers the side of the first sub-portion of the first electrode layer 240 away from the base substrate 100, and the pixel definition layer 230 covers the side surface of the first electrode layer 240 away from the display area 01, which cuts off the side line, to form protection. The first electrode layer 240 can be a positive electrode layer.

[0113] Please continue to refer to Figure 6 In the structure shown, if the peripheral area 02 is defined to include a bottom area 021 located at the bottom of the display area 01, the corresponding peripheral area 02 also includes a left area located on the left side of the display area 01, a right area located on the right side of the display area 01, and a top area located at the top of the display area 01. Figure 7 The distribution state of the first electrode layer 240 shown may be located in the top area, the left area, and the right area. For example, Figure 7 The structure can be used as Figure 6 Schematic diagram of the cross-sectional structure at point M in the figure.

[0114] Please continue to refer to Figure 6 In the structure shown, two rounded corner areas 021-1 and a connecting area 021-2 located between the two rounded corner areas 021-1 are provided in the bottom area 021. Figure 8 As shown, in the rounded area 021-1, at the position where the pixel definition layer 230 covers the cutoff edge of the first electrode layer 240 away from the display area 01, the pixel definition layer 230 forms a water-oxygen channel, and water and oxygen can directly enter the display area 01 from each barrier portion through the channel.

[0115] like Figures 9 to 13 As shown, the display panel provided by the embodiment of the present disclosure is further provided with an auxiliary blocking portion P3 in the rounded corner area 021-1. The orthographic projection of the auxiliary blocking portion P3 on the base substrate 100 is located within the orthographic projection of the second blocking groove G2 on the base substrate 100, and the auxiliary blocking portion P3 is spaced apart from the first blocking portion P1 and the second blocking portion P2 in the first direction.

[0116] like Fig.13 As shown, the auxiliary blocking portion P3 includes a first structure layer and a second structure layer stacked in a first direction, the first structure layer is disposed in the same layer as the first sub-portion of the first planar layer 220, and the second structure layer is disposed in the same layer as the first sub-portion of the pixel definition layer 230. At least part of the cutoff edge of the first electrode layer 240 is located within the orthographic projection of the auxiliary blocking portion P3 on the base substrate 100.

[0117] As an example, continue with Fig.11 and Fig.12 refer to Fig. 9 The structure shown. If water and oxygen Fig.11 If the water and oxygen invade in the direction of the middle arrow, the water and oxygen must continue to move along the extension direction of the auxiliary barrier P3 until it reaches Fig.12 The through position of the middle pixel definition layer 230 in the first direction enters the display area 01 .

[0118] It should be noted that, in the embodiment of the present disclosure, at least a portion of the cut-off edge of the first electrode layer 240 is placed in the auxiliary barrier portion P3, which can extend the water and oxygen intrusion path and thus extend the service life of the display panel.

[0119] like Figure 6As shown, the extension length of the auxiliary barrier portion P3 is greater than 2000 μm in the orthographic projection of the base substrate 100. It can be understood that the longer the extension length of the auxiliary barrier portion P3 is, the more conducive it is to extending the water and oxygen intrusion path, which can extend the service life of the display panel.

[0120] Please continue to refer to Figure 1 In the structure shown, the display panel provided by the embodiment of the present disclosure is also provided with a power supply (Voltage Source Supply, VSS) wiring area 04, which is usually located in the peripheral area 02 of the display panel to avoid affecting the display effect, and is used to provide a low-level reference and current return path. In some designs, the VSS wiring will be connected to the back side or other layers of the display panel through a metal through-hole or a conductive layer together with the VDD (Voltage Drain Drain) wiring to optimize resistance and wiring space. Among them, VDD usually represents a positive power supply voltage, which is used to provide power to active devices in the circuit. VSS usually represents a ground or negative power supply voltage.

[0121] It is worth noting that Figure 1 The power wiring area 04 is located on the side of the driving wiring area 03 away from the display area 01. Of course, the power wiring area 04 can also partially overlap with the driving wiring area 03, or even partially extend into the display area 01, which will not be described in detail.

[0122] In one embodiment of the present disclosure, Figure 2 As shown, the base film layer 210 includes: a first metal layer 211, a second flat layer 212, a second metal layer 213, a third flat layer 214 and a third metal layer 215 arranged in sequence in the second direction, wherein:

[0123] The first sub-portion of the first metal layer 211 includes a first portion located in the power wiring area 04;

[0124] The second planar layer 212 is located between the first metal layer 211 and the base substrate 100 and includes a first sub-portion located in the peripheral area 02;

[0125] The second metal layer 213 is located between the base substrate 100 and the second flat layer 212, and includes a first sub-portion located in the peripheral area 02. The first portion 213-1 of the second metal layer 213 includes a first portion 213-1 located in the VSS area and a second portion 213-2 located in the driving wiring area 03;

[0126] The third planar layer 214 is located between the second metal layer and the base substrate 100 and includes a first sub-portion located in the peripheral area 02;

[0127] The third metal layer 215 is located between the base substrate 100 and the third planar layer 214 and includes a first sub-portion located in the peripheral area 02 ; the first sub-portion of the third metal layer 215 includes a first portion 215 - 1 located in the VSS area and a second portion 215 - 2 located in the driving wiring area 03 .

[0128] It is worth noting that a flat layer is required to separate adjacent metal layers in the second direction. Taking the second flat layer 212 as an example, when its preparation material is organic, the second flat layer 212 corresponding to the first barrier groove G1 position and the second barrier groove G2 position needs to be dug out. Correspondingly, taking the third flat layer 214 as an example, when its preparation material is organic, the third flat layer 214 corresponding to the first barrier groove G1 position and the second barrier groove G2 position needs to be dug out. In this way, the water-oxygen channels on both sides of the first barrier portion P1 are completely cut off.

[0129] It is worth noting that the base film layer 210 may contain other structural layers. If the preparation material of the structural layer is also organic, the other structural layers corresponding to the first barrier groove G1 and the second barrier groove G2 also need to be removed, which will not be described in detail.

[0130] Please continue to refer to Figure 2 In the structure shown, the first part of the first metal layer 211, the first part 213-1 of the second metal layer, and the first part 215-1 of the third metal layer 215 are overlapped, and the overlapping positions of the first part of the first metal layer 211, the first part 213-1 of the second metal layer 213, and the first part 215-1 of the third metal layer 215 on the orthographic projection of the base substrate 100 are covered by the orthographic projection of the second blocking groove G2 on the base substrate 100.

[0131] It should be noted that arranging the first portion of the first metal layer 211, the first portion 213-1 of the second metal layer 213 and the first portion 215-1 of the third metal layer 215 in the second blocking groove G2 can reduce VSS impedance and improve power integrity and signal integrity.

[0132] In one embodiment of the present disclosure, Figure 1 and Figure 2 As shown, the peripheral area 02 is also provided with at least one crack blocking portion P4, which is provided along the first direction on the side of the first blocking portion P1 away from the second blocking portion P2 and is spaced apart from the first blocking portion P1. As an example, the crack blocking portion P4 is formed by a concave-convex structure on the surface of the substrate 100 to block cracks.

[0133] It should be noted that the design of the crack blocking portion P4 helps to achieve a narrow frame of the display panel. By providing the crack blocking portion P4 in the peripheral area 02, effective crack protection can be provided without occupying the display area 01. Of course, the crack blocking portion P4 can also prevent the liquid luminescent material from overflowing along the crack, thereby improving the yield of the display panel.

[0134] As an example, a crack barrier P4 is provided at an edge of the peripheral region 02 away from the display region 01 , and cracks are restricted when encountering the crack barrier, thereby preventing the cracks from extending to the display region 01 and affecting the display effect.

[0135] In a specific embodiment, the crack blocking portion P4 is disposed around the display area 01 to form a complete protective barrier, thereby improving the reliability and service life of the display panel.

[0136] In one embodiment of the present disclosure, the number of crack blocking portions P4 is greater than 2 and less than 5; adjacent crack blocking portions P4 are spaced apart in the first direction to reduce the space occupied by the crack blocking portions P4 in the first direction, thereby further contributing to achieving a narrow frame of the display panel.

[0137] It is worth noting that the composite film layer 200 may include other film layers not shown in the figure, and thus, the film layer structures in the first barrier portion P1 and the second barrier portion P2 are not limited to those shown in the figure. Fig.13 As shown, the composite film layer 200 further includes a spacer layer 250 , which also serves as a part of the first barrier portion P1 .

[0138] According to another aspect of the present disclosure, the present disclosure provides a display device, including a display panel provided by any of the above technical solutions.

[0139] It should be noted that the display panel provided by the embodiment of the present disclosure can prevent the material from diffusing from the display area 01 to the peripheral area 02 during the preparation of the display panel by setting the first barrier part P1 and the second barrier part P2, thereby improving the yield of the display panel. At the same time, the display panel provided by the present disclosure sets the first barrier part P1 on the side of the second barrier part P2 away from the display area 01, and removes the inorganic material in the first barrier groove G1 and the second barrier groove G2, which can effectively prevent water and oxygen from penetrating and diffusing from the periphery of the display panel to the inside, thereby improving the reliability and service life of the display panel.

[0140] Furthermore, the display panel provided by the present invention is designed such that at least part of the orthographic projection of the second barrier portion P2 on the base substrate 100 is located within the driving wiring area 03, so that the second barrier portion P2 does not need to be spaced apart from the driving wiring area 03 in the first direction, and the setting positions of the second barrier portion P2 and the first barrier portion P1 can be brought closer to the display area 01 in the first direction, thereby facilitating the reduction of the size of the peripheral area 02 in the first direction to meet the narrow bezel design of the display panel.

[0141] It should be noted that, although the steps of the method for preparing a display panel in the present disclosure are described in a specific order in the accompanying drawings, this does not require or imply that the steps must be performed in this specific order, or that all the steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps, etc.

[0142] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A display panel, characterized in that: include: A display area and a peripheral area surrounding at least part of the display area; the arrangement directions of the display area and the peripheral area form a first direction, the peripheral area is provided with a first blocking groove, a second blocking groove and a third blocking groove which are sequentially spaced in the first direction, and the first blocking groove is located on a side of the second blocking groove away from the display area; The display panel includes a base substrate and a composite film layer located on one side of the base substrate, the composite film layer includes a plurality of film layer structures stacked in a second direction, the second direction being perpendicular to the first direction; in the orthographic projection of the base substrate, the material of each film layer structure located in the first barrier groove within the orthographic projection coverage area of ​​the base substrate is an inorganic substance, and the material of each film layer structure located in the second barrier groove within the orthographic projection coverage area of ​​the base substrate is an inorganic substance; a portion of the composite film layer located between the first barrier groove and the second barrier groove forms a first barrier portion; the first barrier portion is arranged around at least a portion of the display area; In the orthographic projection of the base substrate, the material of at least one film layer structure of the composite film layer located in the orthographic projection coverage area of ​​the third blocking groove on the base substrate is organic; the portion of the composite film layer located between the second blocking groove and the third blocking groove forms a second blocking portion; the second blocking portion is arranged around at least a portion of the display area; The peripheral area also includes a driving wiring area, at least part of the orthographic projection of the second blocking portion on the base substrate is located within the driving wiring area, and the orthographic projection of the first blocking portion on the base substrate is located outside the driving wiring area.

2. The display panel according to claim 1, characterized in that: The composite film layer comprises: A base film layer, the base film layer at least comprising a first metal layer, located on a side of the base substrate away from the base substrate, and comprising a first sub-portion located in the peripheral area; A first flat layer, located on a side of the base film layer away from the base substrate and covering the first metal layer, includes a first sub-portion located in the peripheral area; an orthographic projection of the first sub-portion of the first flat layer on the base substrate does not overlap with an orthographic projection of the first blocking groove on the base substrate, and an orthographic projection of the first sub-portion of the first flat layer on the base substrate does not overlap with an orthographic projection of the second blocking groove on the base substrate; A pixel definition layer is located on the side of the first flat layer away from the base substrate, and includes a first sub-portion located in the peripheral area; the orthographic projection of the first sub-portion of the pixel definition layer on the base substrate does not overlap with the orthographic projection of the first blocking groove on the base substrate, and the orthographic projection of the first sub-portion of the pixel definition layer on the base substrate does not overlap with the orthographic projection of the second blocking groove on the base substrate.

3. The display panel according to claim 2, characterized in that: The second blocking portion includes a sub-blocking portion, and the sub-blocking portion includes a first sub-portion of the pixel definition layer; the first sub-portion of the first planar layer forms a groove bottom of the third blocking groove.

4. The display panel according to claim 2, characterized in that: The second blocking portion includes a sub-blocking portion, and the sub-blocking portion includes a first sub-portion of the pixel definition layer and a first sub-portion of the first planar layer; The first sub-portion of the first metal layer forms the bottom of the third blocking groove; Alternatively, the first subportion of the first planar layer and the first subportion of the first metal layer form a bottom of the third barrier groove, and the first subportion of the first metal layer forming the bottom of the third barrier groove is connected to the sidewall of the third barrier groove formed by the sub-barrier portion.

5. The display panel according to claim 2, characterized in that: The second barrier portion includes at least two sub-barrier portions, each two of the sub-barrier portions are separated by a sub-barrier groove, at least two of the sub-barrier portions are arranged at intervals in the first direction, and each of the second barrier portions is arranged around at least a portion of the display area; The first sub-portion of the first planar layer forms the bottom of the third barrier groove; Alternatively, the first sub-portion of the first metal layer forms the bottom of the third blocking groove; Alternatively, the first subportion of the first planar layer and the first subportion of the first metal layer form a bottom of the third barrier groove, and the first subportion of the first metal layer forming the bottom of the third barrier groove is connected to the sidewall of the third barrier groove formed by the sub-barrier portion.

6. The display panel according to claim 5, characterized in that: The second barrier portion includes two sub-barrier portions and a sub-barrier groove, wherein: The sub-blocking portion close to the display area in the first direction includes a first sub-portion of the pixel definition layer; the first sub-portion of the first planar layer forms the bottom of the third blocking groove; The sub-blocking portion away from the display area in the first direction includes a first sub-portion of the pixel definition layer and a first sub-portion of the first planar layer; the first metal layer forms a groove bottom of the sub-blocking groove.

7. The display panel according to any one of claims 3 to 5, characterized in that: Along the first direction, the width of the sub-blocking portion ranges from 5 μm to 20 μm.

8. The display panel according to claim 7, characterized in that: Along the first direction, the width of the first barrier portion ranges from 20 μm to 40 μm.

9. The display panel according to any one of claims 1 to 6, characterized in that: The first blocking portion is disposed around the display area; And / or, the second blocking portion is arranged around the display area.

10. The display panel according to any one of claims 2 to 6, characterized in that: The composite film layer also includes: The first electrode layer is located on the side of the first flat layer away from the base substrate, including a first sub-portion located in the peripheral area; and the pixel definition layer covers the first sub-portion of the first electrode layer away from the base substrate, and the pixel definition layer covers the side surface of the first electrode layer away from the display area on the side of the cutoff edge.

11. The display panel according to claim 10, characterized in that: The peripheral area includes a bottom area located at the bottom of the display panel; the bottom area is provided with two rounded corner areas and a connecting area located between the two rounded corner areas; An auxiliary barrier portion is provided in the rounded corner area; The orthographic projection of the auxiliary blocking portion on the base substrate is located within the orthographic projection of the second blocking groove on the base substrate, and the auxiliary blocking portion is spaced apart from the first blocking portion and the second blocking portion in the first direction; the auxiliary blocking portion includes a first structural layer and a second structural layer stacked in the first direction, the first structural layer and the first sub-portion of the first flat layer are arranged on the same layer, and the second structural layer and the first sub-portion of the pixel definition layer are arranged on the same layer; and at least part of the cutoff edge line is located within the orthographic projection of the auxiliary blocking portion on the base substrate.

12. The display panel according to claim 11, characterized in that: In the orthographic projection of the base substrate, an extension length of the auxiliary barrier portion is greater than 2000 μm.

13. The display panel according to any one of claims 2 to 6, characterized in that: The peripheral area further includes a power wiring area, and the power wiring area is located at a side of the drive wiring area away from the display area in the first direction; The base film layer also includes: The first sub-portion of the first metal layer includes a first portion located in a power routing area; A second planar layer, located between the first metal layer and the substrate, including a first sub-portion located in the peripheral area; A second metal layer, located between the base substrate and the second flat layer, includes a first sub-portion located in the peripheral area, the first sub-portion of the second metal layer includes a first portion located in the power wiring area and a second portion located in the drive wiring area; A third planar layer, located between the second metal layer and the substrate, including a first sub-portion located in the peripheral area; A third metal layer is located between the substrate and the third flat layer, and includes a first sub-portion located in the peripheral area; the first sub-portion of the third metal layer includes a first portion located in the power wiring area and a second portion located in the drive wiring area; The first portion of the first metal layer, the first portion of the second metal layer and the first portion of the third metal layer overlap, and the overlapping position of the first sub-portion of the first metal layer, the first portion of the second metal layer and the first portion of the third metal layer in the orthographic projection of the base substrate is located within the orthographic projection of the second blocking groove on the base substrate.

14. The display panel according to any one of claims 1 to 6, characterized in that: The peripheral area is further provided with at least one crack blocking portion, which is arranged along the first direction on a side of the first blocking portion away from the second blocking portion and is spaced apart from the first blocking portion; the crack blocking portion is arranged around the display area.

15. The display panel according to claim 14, characterized in that: The number of the crack blocking parts is greater than 2 and less than 5; and adjacent crack blocking parts are arranged at intervals in the first direction.

16. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-15.

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