Display panel and display device

Abstract

The present disclosure relates to the technical field of display, and discloses 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 barrier groove, a second barrier groove and a third barrier groove; the display panel comprises a substrate and a composite film layer; the composite film layer located in the first barrier groove and the second barrier groove in the orthographic projection of the substrate is inorganic; the composite film layer located 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 third barrier groove in the orthographic projection of the substrate is organic; the composite film layer located between the second barrier groove and the third barrier groove forms a second barrier part; the peripheral area comprises a driving wire area; the orthographic projection of the second barrier part on the substrate is at least partially in the driving wire area, and the orthographic projection of the first barrier part on the substrate is outside the driving wire area. The present disclosure optimizes the structure of the display panel, and can meet the narrow frame design trend of the display panel.

Description

TECHNICAL FIELD

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

[0002] With the continuous development of display technology, OLED (Organic Light-Emitting Diode) display panels gradually become the mainstream technology in the display field due to their high contrast, fast response, and lightness 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 function of row-by-row scanning drive, thereby reducing the cost and simplifying the process.

[0003] However, in the existing design of OLED display panels, the layout of GOA traces brings challenges to the narrow frame design. In order to protect the circuit of the display panel, a Dam design is usually used in the related technology to cut off the water and oxygen transmission channel. However, in actual application, due to the existence of GOA traces, Dam needs to give a certain space to GOA traces in the horizontal direction, that is, the orthographic projection of Dam and GOA traces on the substrate cannot overlap. Accordingly, the setting position of Dam is limited. This design causes the frame area of the display panel to be unable to be further reduced, which affects the development of the narrow frame of the display panel.

[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute the related art known to those of ordinary skill in the art. SUMMARY

[0005] The purpose of the present disclosure is to overcome the deficiencies of the above-mentioned related art and 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 display area and the peripheral area form a first direction in the arrangement direction, the peripheral area is provided with a first dam, a second dam and a third dam which are sequentially and spaced apart in the first direction, and the first dam is located on the side of the second dam away from the display area.

[0007] The display panel comprises a substrate substrate and a composite film layer located on one side of the substrate substrate, the composite film layer comprises 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 substrate substrate, the material of each film layer structure located within the orthographic projection coverage area of the first barrier groove in the composite film layer is inorganic, and the material of each film layer structure located within the orthographic projection coverage area of the second barrier groove in the composite film layer is inorganic; the part of the composite film layer located between the first barrier groove and the second barrier groove forms a first barrier part; the first barrier part is arranged around at least part of the display area;

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

[0009] The peripheral area further comprises a driving wire area, at least part of the orthographic projection of the second barrier part is located within the driving wire area, and the orthographic projection of the first barrier part is located outside the driving wire 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 the side of the substrate substrate away from the substrate substrate, comprising a first subpart located in the peripheral area;

[0012] A first planar layer, located on the side of the base film layer away from the substrate substrate and covering the first metal layer, comprising a first subpart located in the peripheral area; the first subpart of the first planar layer has no overlap with the orthographic projection of the first barrier groove on the substrate substrate, and the first subpart of the first planar layer has no overlap with the orthographic projection of the second barrier groove on the substrate substrate;

[0013] A pixel definition layer, located on the side of the first planar layer away from the substrate substrate, comprising a first subpart located in the peripheral area; the first subpart of the pixel definition layer has no overlap with the orthographic projection of the first barrier groove on the substrate substrate, and the first subpart of the pixel definition layer has no overlap with the orthographic projection of the second barrier groove on the substrate substrate.

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

[0015] Optionally, the second barrier portion comprises a sub-barrier portion, the sub-barrier portion comprises 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 a groove bottom of the third barrier groove.

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

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

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

[0020] Alternatively, the first sub-portion of the first metal layer forms a groove bottom of the third barrier groove.

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

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

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

[0024] The sub-barrier portion away from the display area in the first direction comprises 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-barrier groove.

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

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

[0027] Optionally, the first barrier portion is arranged around the display area.

[0028] Optionally, the second barrier portion is arranged around the display area.

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

[0030] The first electrode layer is located on a side of the first planar layer away from the substrate base and comprises a first sub-portion located on the peripheral area; and the pixel definition layer covers a side of the first sub-portion of the first electrode layer away from the substrate base, and the pixel definition layer covers a side surface of the first electrode layer away from a side cut-off line of the display area.

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

[0032] The rounded corner area is provided with an auxiliary barrier portion; the auxiliary barrier portion is in orthographic projection on the second barrier groove in orthographic projection on the substrate base, and the auxiliary barrier portion is arranged apart from the first barrier portion and the second barrier portion along the first direction; the auxiliary barrier portion comprises a first structure layer and a second structure layer stacked along the first direction, the first structure layer is arranged in the same layer as the first sub-portion of the first planar layer, and the second structure layer is arranged in the same layer as the first sub-portion of the pixel definition layer; and at least part of the first cut-off line is in orthographic projection on the auxiliary barrier portion on the substrate base.

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

[0034] Optionally, the peripheral area further comprises a power supply wiring area, the power supply wiring area is located on a side of the driving wiring area away from the display area along the first direction.

[0035] The base film layer further comprises:

[0036] The first sub-part of the first metal layer includes a first portion in the power supply trace area;

[0037] The second flat layer is between the first metal layer and the substrate substrate, and includes a first sub-part in the peripheral area;

[0038] The second metal layer is between the substrate substrate and the second flat layer, and includes a first sub-part in the peripheral area, and the first sub-part of the second metal layer includes a first portion in the power supply trace area and a second portion in the driving trace area;

[0039] The third flat layer is between the second metal layer and the substrate substrate, and includes a first sub-part in the peripheral area;

[0040] The third metal layer is between the substrate substrate and the third flat layer, and includes a first sub-part in the peripheral area; and the first sub-part of the third metal layer includes a first portion in the power supply trace area and a second portion in the driving trace 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 are overlapped, and the overlapped positions of the first sub-part of the first metal layer, the first portion of the second metal layer, and the first portion of the third metal layer are in the projection of the second barrier groove in the substrate substrate.

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

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

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

[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, and can improve the yield of the display panel. At the same time, the display panel provided by the present disclosure sets the first barrier portion on the side of the second barrier portion 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, and can improve the reliability and service life of the display panel.

[0046] Further, the second barrier portion of the display panel provided by the present disclosure is designed such that at least part of the orthographic projection of the second barrier portion on the substrate is located in the driving wire region, so that the second barrier portion does not need to be arranged apart from the driving wire region in the first direction, and the positions of the second barrier portion and the first barrier portion in the first direction can be pulled closer to the display region, so as to facilitate reducing the size of the peripheral region in the first direction, and meet the narrow frame design of the display panel.

[0047] It should be understood that the general description above and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0048] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments consistent with the present disclosure and, together with the specification, serve to explain the principles of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

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

[0050] Figure 2 A partial plan view of a display panel provided by an embodiment of the present disclosure is shown in FIG. 1; Figure 1 A cross-sectional view of the display panel along the A-A line in FIG. 1 is shown in FIG. 2;

[0051] Figure 3 A plan view of the first planar layer of the display panel in FIG. 1 is shown in FIG. 3; Figure 2 A cross-sectional view of the display panel along the A-A line in FIG. 1 is shown in FIG. 2;

[0052] Figure 4 A plan view of the first planar layer of the display panel in FIG. 1 is shown in FIG. 3;

[0053] Figure 5 A plan view of the first planar layer of the display panel in FIG. 1 is shown in FIG. 3; Figure 4 A plan view of the first planar layer of the display panel in FIG. 1 is shown in FIG. 3;

[0054] Figure 6 A plan view of a display panel provided by an embodiment of the present disclosure is shown in FIG. 1;

[0055] Figure 7 A plan view of a display panel provided by an embodiment of the present disclosure is shown in FIG. 1; Figure 6 A cross-sectional view of the M position in FIG. 1 is shown in FIG. 4;

[0056] Figure 8 A first plan view of the display panel in the rounded corner region provided by an embodiment of the present disclosure is shown in FIG. 5;

[0057] Figure 9 A second plan view of the display panel in the rounded corner region provided by an embodiment of the present disclosure is shown in FIG. 6;

[0058] Figure 10 Fig. 1 is a schematic diagram of a display panel in a plan view. Figure 9 Fig. 2 is a schematic diagram of an enlarged view at W1 in Fig. 1.

[0059] Figure 11 Fig. 3 is a schematic diagram of an enlarged view at W2 in Fig. 1. Figure 9 Fig. 4 is a schematic diagram of an enlarged view at W3 in Fig. 1.

[0060] Figure 12 Fig. 5 is a schematic diagram of a display panel cross section view corresponding to the plan view in Fig. 1. Figure 9 Fig. 6 is a schematic diagram of an enlarged view at W4 in Fig. 5.

[0061] Figure 13 Fig. 7 is a schematic diagram of an enlarged view at W5 in Fig. 5. Figure 9 Fig. 8 is a schematic diagram of an enlarged view at W6 in Fig. 5.

[0062] Reference Signs List:

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

[0064] Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings. Example embodiments, however, can be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided as non-limiting examples so that this disclosure will fully convey the scope thereof to those skilled in the art. Like reference numerals refer to like elements throughout the figures and detailed descriptions; thus, their description will be omitted. In addition, the drawings are only schematic and the dimensions are not necessarily to scale.

[0065] Although relative terms are used in this description, such as "upper," "lower," to describe one component's relationship to another component, these terms are used herein for convenience only and are not intended to be limiting. It is to be understood that, when a part is referred to as being "on" or "under" another part, it can be directly on or under the other part, or intervening parts can be present. When a part is referred to as being "on" or "under" another part, it can be directly on or under the other part, or intervening parts can be present.

[0066] The terms "a," "an," "the" and "at least one" are used to mean one or more than one, for example, the term "a" means at least one, the terms "the" and "at least one" mean one or more than one, and the term "an" means at least one. The terms "comprising," "having," "including," and "containing" are used to mean including, but not limited to, for example, the terms "comprising" and "including" mean including, but not limited to.

[0067] Figure 1 A partial plan view of a display panel is provided for the embodiments of the present disclosure; as shown in Figure 1 The display panel provided by the embodiments of the present disclosure 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 for displaying images, and the peripheral area 02 is used for accommodating various circuits and structures. As shown in Figure 1 The arrangement direction of the display area 01 and the peripheral area 02 forms a first direction. When manufacturing the display area 01 of the display panel, an IJP (Ink-Jet Printing) technology can be used, liquid light-emitting materials are sprayed to a designated position by a nozzle to form a pixel array, thereby realizing the manufacturing of the display panel.

[0068] Figure 2 A cross-sectional view of the display panel along the A-A line is provided in Figure 1 The structure shown in Figure 2 Referring to the structure shown in Figure 1 The peripheral area 02 is provided with a first barrier groove G1, a second barrier groove G2 and a third barrier groove G3 arranged in the first direction in sequence, 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 dashed line in

[0069] As shown in Figure 2As shown, the display panel provided by the embodiment of the present disclosure includes a substrate 100 and a composite film layer 200 located on one side of the substrate 100. 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 implementation process, the substrate 100 included in the display panel can be a rigid substrate or a flexible substrate, which is not limited herein. When the substrate 100 is a flexible substrate, the material of the flexible substrate can be a polyimide film (PI), a polyethylene terephthalate (PET), or the like, which is not limited herein. The flexible substrate can be a structure including a single flexible substrate layer or a structure including multiple flexible substrate layers, such as a two-layer flexible substrate layer structure or a three-layer flexible substrate layer structure, which is not limited herein. In addition, a support layer (Barrier) can be arranged between adjacent two flexible substrate layers.

[0071] As shown, Figure 2 In the orthogonal projection of the substrate 100, the material of each film layer structure located in the orthogonal projection coverage area of the first barrier groove G1 in the composite film layer 200 is inorganic, and the material of each film layer structure located in the orthogonal projection coverage area of the second barrier groove G2 in the composite film layer 200 is inorganic. The part of the composite film layer 200 located between the first barrier groove G1 and the second barrier groove G2 forms a first barrier part P1. The first barrier part P1 is arranged around at least part of the display area 01 to provide protection for the display area 01.

[0072] It can be understood that inorganic materials have good barrier properties and can effectively prevent water and oxygen penetration and material diffusion. Organic materials usually have water absorption and are easy to cause water and oxygen to invade, thereby affecting the performance and service life of the display panel. In the embodiment of the present disclosure, 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 removed, cutting off the water and oxygen channel, which can effectively block the invasion of external water and oxygen and form a better packaging effect.

[0073] As shown, Figure 2 In the orthogonal projection of the substrate 100, the material of at least one film layer structure located in the orthogonal projection coverage area of the third barrier groove G3 in the composite film layer 200 is organic. The part of the composite film layer 200 located between the second barrier groove G2 and the third barrier groove G3 forms a second barrier part P2. The second barrier part P2 is arranged around at least part of the display area 01.

[0074] As shown, Figure 1As shown, the peripheral area 02 also includes a drive trace area 03, also known as the GOA area. This drive trace area 03 includes several GOA traces, which are circuit traces in the display panel used to implement the gate driving function. For example... Figure 2 The second barrier portion P2 shown is located at least part of the orthographic projection of the substrate 100 within the drive trace area 03, while the first barrier portion P1 is located outside the drive trace area 03 in the orthographic projection of the substrate 100.

[0075] It is understood that the GOA trace is a metal trace, which needs to be covered by an organic layer for insulation. The organic layer located in the third barrier trench G3 can serve as a film structure covering the GOA. Therefore, at least a portion of the second barrier portion P2 projected onto the substrate 100 can be located within the drive trace area 03.

[0076] It should be noted that the display panel provided in this embodiment, by setting two barrier parts, a first barrier part P1 and a second barrier part P2, can prevent the diffusion of materials from the display area 01 to the peripheral area 02 during the manufacturing process of the display panel, thereby improving the yield of the display panel. Simultaneously, the display panel provided in this embodiment, by placing the first barrier part P1 on the side of the second barrier part P2 opposite to the display area 01 and removing the inorganic material from the first barrier groove G1 and the second barrier groove G2, can effectively prevent water and oxygen from permeating and diffusing from the periphery of the display panel inward, thereby improving the reliability and service life of the display panel.

[0077] Furthermore, in the display panel design provided in this embodiment, at least a portion of the orthographic projection of the second blocking portion P2 onto the substrate 100 is located within the driving trace area 03. This eliminates the need for the second blocking portion P2 to be spaced apart from the driving trace area 03 in the first direction. The positions of the second blocking portion P2 and the first blocking 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 and satisfying the narrow bezel design of the display panel.

[0078] like Figure 2 As shown, in one embodiment of this disclosure, the composite film layer 200 includes: a base film layer 210, a first planarization layer 220, and a pixel definition layer 230 sequentially stacked in a 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 substrate 100 facing away from the substrate 100 and includes a first sub-portion in the peripheral area 02. It can be understood that the base film layer 210 can only include one film layer structure, i.e., 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 stacked film layer structures is located on the side of the other film layer structures facing away from the substrate 100.

[0080] The first planar layer 220 is located on the side of the base film layer 210 facing away from the substrate 100 and covers the first metal layer 211, and includes a first sub-portion in the peripheral area 02; the first sub-portion of the first planar layer 220 has no overlap with the first barrier groove G1 in the orthographic projection of the substrate 100, and the first sub-portion of the first planar layer 220 has no overlap with the second barrier groove G2 in the orthographic projection of the substrate 100.

[0081] The pixel definition layer 230 is located on the side of the first planar layer 220 facing away from the substrate 100 and includes a first sub-portion in the peripheral area 02; the first sub-portion of the pixel definition layer 230 has no overlap with the first barrier groove G1 in the orthographic projection of the substrate 100, and the first sub-portion of the pixel definition layer 230 has no overlap with the second barrier groove G2 in the orthographic projection of the substrate 100.

[0082] It can be understood that the pixel definition layer 230 also includes a second sub-portion in the display area 01 to define a 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 in the display area 01, which will not be described in detail 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 matter. Thus, when the preparation material of the pixel definition layer 230 is organic matter, the first sub-portion of the pixel definition layer 230 is excavated in the parts corresponding to the first barrier groove G1 and the second barrier groove G2; when the preparation material of the first planar layer 220 is organic matter, the first sub-portion of the first planar layer 220 is excavated in the parts corresponding to the first barrier groove G1 and the second barrier groove G2.

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

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

[0086] It should be noted that when the display panel is prepared by using the IJP technology, the liquid light emitting material sprayed by the nozzle has a tendency to flow from the display area 01 to the peripheral area 02, at this time, the liquid light emitting material can flow into the third barrier groove G3, at this time, the first sub-barrier portion in the second barrier portion P2 close to the display area 01 preliminarily blocks the liquid light emitting material. If the liquid light emitting material continues to flow into the sub-barrier groove G4, the liquid light emitting material can be blocked again by the remaining sub-barrier portions. Accordingly, the structure in the structure form can more effectively prevent the liquid light emitting material from overflowing in the first direction, and can improve the yield of the display panel.

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

[0088] As an example, taking the case that the second barrier portion P2 includes two sub-barrier portions P21 as an example, one sub-barrier groove G4 is arranged between the two sub-barrier portions P21. At this time, the frame area of the display panel is provided with four barrier grooves, such as one first barrier groove G1, one second barrier groove G2, one third barrier groove G3, and one sub-barrier groove G4 located between the second barrier groove G2 and the third barrier groove G3.

[0089] As another example, taking the case that the second barrier portion P2 includes three sub-barrier portions P21 as an example, one sub-barrier groove G4 is arranged between the two sub-barrier portions P21. At this time, the frame area of the display panel is provided with five barrier grooves, such as one first barrier groove G1, one second barrier groove G2, one third barrier groove G3, and two sub-barrier grooves G4 located between the second barrier groove G2 and the third barrier groove G3.

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

[0091] It is noted that in forming the sub-barrier groove G4, the first sub-portion of the pixel definition layer 230 can be removed at a position corresponding to the sub-barrier groove G4, so that the first sub-portion of the first planar layer 220 forms the groove bottom of the sub-barrier groove G4. Alternatively, the first sub-portion of the pixel definition layer 230 and the first sub-portion of the first planar layer 220 can be removed at a position corresponding to the sub-barrier groove G4, 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 groove bottom of the sub-barrier groove G4. At this time, it is noted that the first sub-portion of the first metal layer 211 forming the groove bottom of the sub-barrier groove G4 is connected to the sidewall of the sub-barrier groove G4 formed by the sub-barrier portion P21, so that the sub-barrier portion P21 can better play a barrier role.

[0092] Accordingly, in combination with the structural design of the third barrier groove and the sub-barrier groove, the display panel provided by the embodiments of the present disclosure has multiple possible structures.

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

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

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

[0096] It should be noted that in the specific embodiment, only the pixel definition layer 230 is removed in the third barrier groove G3 to form a first sub-barrier portion P21, the height of the sub-barrier portion P21 in the second direction is low, which has a certain blocking effect on the IJP, and will not affect the GOA wiring below, and the distance to the display area 01 can be shortened. The sub-barrier groove G4 removes the pixel definition layer 230 and the first planar layer 220 to form a second sub-barrier portion P21, so as to control the height of the sub-barrier portion P21, and minimize the risk of residual in the sub-barrier groove G4 when preparing the TSP (Touch Screen Panel, touch screen panel) wiring across the line, and the yield of the display panel can be improved.

[0097] The second barrier portion P2 includes a sub-barrier portion P21 (see Figure 2 the first sub-barrier portion P21 close to the display area 01 in the structure form two), and the sub-barrier portion P21 includes a first sub-portion of the pixel definition layer 230; a first sub-portion of the first planar layer 220 forms a groove bottom of the third barrier groove G3 (see Figure 2 the third barrier groove G3 in the structure form three). 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 removed at the position corresponding to the third barrier groove G3, and thus 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 groove bottom of the third barrier groove G3.

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

[0100] Meanwhile, since the second barrier portion in the structure form is formed only by the first sub-portion of the pixel definition layer 230, it will not affect the metal layer between the pixel definition layer 230 and the substrate 100, and accordingly will not affect the GOA wiring below, and the distance between the second barrier portion P2 in the first direction and the display area 01 can be shortened, thereby facilitating the narrow frame design of the display panel.

[0101] The second barrier portion P2 includes a sub-barrier portion P21 (see Figure 2The second sub-blocking portion P21, located near the display area 01, includes a first sub-part of the pixel definition layer 230 and a first sub-part of the first planarization layer 220; the first sub-part of the first metal layer 211 forms the bottom of the third blocking trench G3 (see reference). Figure 2 (Sub-barrier groove G4 in the middle).

[0102] The difference between this third structural form and the second structural form is that the sub-barrier portion P21 in this structural form includes a two-layer film structure, and the depth of the third barrier trench G3 changes. Specifically, in this embodiment, the first sub-part of the pixel definition layer 230 is removed at the position corresponding to the third barrier layer, and the first sub-part of the first planarization layer 220 covered by the first sub-part of the pixel definition layer 230 is also removed at the position corresponding to the third barrier trench G3, and the first metal layer 211 forms the bottom of the third barrier trench G3.

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

[0104] Understandably, the difference between structural form four and structural form three lies in the location of the excavation of the first leveling layer 220. Specifically, the first leveling layer 220 is not completely excavated at the location corresponding to the third barrier trench G3.

[0105] It should be noted that in this structural design, the depth of the third barrier groove G3 includes two depths: one is the depth d1 where the bottom of the groove is formed in the first sub-section of the first planarization layer 220, and the other is the depth d2 where the bottom of the groove is formed in the first sub-section of the first metal layer 211. d1 is significantly smaller than d2. Therefore, this structural design can prevent TSP traces from remaining in the third barrier groove G3 during subsequent trace crossings, thus improving the yield of the display panel.

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

[0107] In one embodiment of this disclosure, the width of the first blocking portion P1 along the first direction is in the range of 20μm to 40μm, so as to reasonably plan the space occupied by the first blocking portion P1 in the first direction, and facilitate the miniaturization of the display panel while ensuring the blocking effect.

[0108] When setting the first blocking part P1 and the second blocking part P2, as follows Figure 6 As shown, in one embodiment of this disclosure, a first barrier portion P1 is disposed around the display area 01, and a second barrier portion P2 is also disposed around the display area 01 to effectively protect the display area 01 from all directions. Specifically, the second barrier portion P2 can block the liquid light-emitting material from all directions, preventing it from overflowing further along the first direction, thereby improving the yield of the display panel; the first barrier portion P1 forms a barrier structure around 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 part P1 can be set to wrap around the partial display area 01, or the second blocking part P2 can be set to wrap around the partial display area 01. The specifics will not be elaborated here.

[0110] Alternatively, please continue to refer to Figure 6 The structure shown can also be configured such that the first blocking part P1, the second blocking part P2, the first blocking groove G1, the second blocking groove G2, and the third blocking groove G3 are arranged differently at different positions in the peripheral area 02 of the display panel. 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 area 02 to prevent TSP traces from remaining in the barrier groove during subsequent TSP routing.

[0111] Understandable, Figure 3 and Figure 5 The filled portion represents the cut-out area of ​​pixel definition layer 230.

[0112] In one embodiment of this disclosure, such as Figure 7 As shown, the composite film layer 200 further includes: a first electrode layer 240 located on the side of the first planarization layer 220 away from the substrate 100, including a first sub-part located in the peripheral region 02; and a pixel definition layer 230 covering the first sub-part of the first electrode layer 240 on the side away from the substrate 100, and the pixel definition layer 230 covering the side surface of the first electrode layer 240 away from the cutoff edge of the display area 01 to form a protective layer. The first electrode layer 240 can be a positive electrode layer.

[0113] Please continue to refer to this. Figure 6 As shown in the structure, if the peripheral area 02 is defined to include the bottom area 021 located at the bottom of the display area 01, then the corresponding peripheral area 02 also includes the left area located to the left of the display area 01, the right area located to the right of the display area 01, and the top area located at the top of the display area 01.Figure 7 The distribution state of the first electrode layer 240 shown can be located in the top area, the left area, and the right area, and the first electrode layer 240 shown is located in the top area, the left area, and the right area. Figure 7 The structure shown can be as Figure 6 The cross-sectional structure schematic diagram at M in the structure shown.

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

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

[0116] As Figure 13 As shown, the auxiliary barrier portion P3 includes a first structure layer and a second structure layer stacked in the first direction, the first structure layer is provided in the same layer as the first sub-portion of the first planar layer 220, and the second structure layer is provided in the same layer as the first sub-portion of the pixel definition layer 230. And at least part of the cut-off edge line of the first electrode layer 240 is located in the projection of the auxiliary barrier portion P3 on the substrate 100.

[0117] As an example, please continue to combine Figure 11 And Figure 12 Reference Figure 9 The structure shown. If water and oxygen invade along the arrow direction in Figure 11 The water and oxygen need to continue to advance along the extension direction of the auxiliary barrier portion P3 until they reach Figure 12 The through position of the pixel definition layer 230 in the first direction enters the display area 01.

[0118] It should be noted that the embodiment of the present disclosure puts at least part of the cut-off edge line of the first electrode layer 240 into the auxiliary barrier portion P3, which can lengthen the water and oxygen invasion path to lengthen the service life of the display panel.

[0119] As Figure 6As shown, the extension length of the auxiliary barrier portion P3 is greater than 2000 μm within the orthographic projection of the substrate 100. It can be understood that the longer the extension length of the auxiliary barrier portion P3 is, the more conducive to prolonging the water and oxygen invasion path, and the longer the service life of the display panel can be prolonged.

[0120] Please continue to refer to Figure 1 As shown in the structure, 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 a current return path. In some designs, the VSS wiring will be connected to the back or other layers of the display panel through a metal via or a conductive layer together with the VDD (Voltage Drain Drain) wiring to optimize the resistance and wiring space. Among them, VDD usually represents a positive power supply voltage, which is used to provide power supply for active devices in the circuit. VSS usually represents ground or negative power supply voltage.

[0121] It is worth noting that, Figure 1 The power supply wiring area 04 is located on the side of the driving wiring area 03 away from the display area 01, of course, the power supply 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 an embodiment of the present disclosure, as 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 the second direction in sequence, wherein:

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

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

[0125] The second metal layer 213 is located between the substrate 100 and the second flat layer 212, and includes a first sub-portion located in the peripheral area 02, and a first portion 213-1 of the 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 flat layer 214 is located between the second metal layer and the substrate 100, and includes a first sub-portion located in the peripheral area 02;

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

[0128] It is worth noting that a planar layer is needed to separate the metal layers adjacent in the second direction. For example, the second planar layer 212 is made of organic material, and the second planar layer 212 corresponding to the positions of the first barrier groove G1 and the second barrier groove G2 needs to be removed. Correspondingly, the third planar layer 214 is made of organic material, and the third planar layer 214 corresponding to the positions of the first barrier groove G1 and the second barrier groove G2 needs to be removed. In this way, the water and 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 can also contain other structural layers. If the material of the other structural layers is also organic, the other structural layers corresponding to the positions of 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 As shown in the structure, 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 are overlapped, and the overlapping positions of 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 are covered by the second barrier groove G2 in the orthographic projection of the substrate 100.

[0131] It is worth noting that 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 are overlapped in the second barrier groove G2, which can reduce the VSS impedance and improve the power integrity and signal integrity.

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

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

[0134] As an example, the crack barrier P4 is set at the edge position of the peripheral area 02 away from the display area 01, and the crack is limited when encountering the crack barrier, thereby avoiding the crack extending to the display area 01 and affecting the display effect.

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

[0136] In an embodiment of the present disclosure, the number of crack barriers P4 is greater than 2 and less than 5; adjacent crack barriers P4 are arranged at intervals in the first direction to reduce the occupied space of the crack barrier P4 in the first direction, thereby further helping to realize the narrow frame of the display panel.

[0137] It is worth noting that the composite film layer 200 can contain other film layers not shown in the figure, so the film layer structure in the first barrier P1 and the second barrier P2 is not limited to the figure. For example, as shown in the figure, the composite film layer 200 also includes a spacer layer 250, which also serves as part of the first barrier P1. Figure 13

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

[0139] It should be noted that the display panel provided by the embodiments 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 two barriers, the first barrier P1 and the second barrier 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 P1 on the side away from the display area 01 of the second barrier P2, 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, thereby improving the reliability and service life of the display panel.

[0140] ​In addition, the display panel provided by the present disclosure designs the second barrier portion P2 such that at least part of the orthographic projection of the second barrier portion P2 is located in the driving wire area 03, so that the second barrier portion P2 does not need to be arranged spaced apart from the driving wire area 03 in the first direction, and the positions of the second barrier portion P2 and the first barrier portion P1 in the first direction can be pulled closer to the display area 01, thereby facilitating the reduction of the size of the peripheral area 02 in the first direction, and meeting the narrow frame design of the display panel.

[0141] It should be noted that although the steps of the method for manufacturing the 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 result. Additionally or alternatively, some steps can be omitted, a plurality of steps can be combined into one step, and / or one step can be divided into a plurality of steps, etc.

[0142] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure following the general principles thereof and including such departures from the present disclosure that come within known, accepted, and / or customary practice in the art to which the present disclosure pertains. The specification and examples are to be regarded as illustrative only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A display panel, characterized by, The display panel comprises a substrate and a composite film layer on one side of the substrate, the composite film layer comprises a plurality of film layer structures stacked in a second direction perpendicular to the first direction; in the orthographic projection of the substrate, the material of each film layer structure located in the orthographic projection covering area of the first barrier groove is inorganic, and the material of each film layer structure located in the orthographic projection covering area of the second barrier groove is inorganic; the part of the composite film layer between the first barrier groove and the second barrier groove forms a first barrier part; the first barrier part is arranged around at least part of the display area; In the orthographic projection of the substrate, the material of at least one film layer structure located in the orthographic projection covering area of the third barrier groove is organic; the part of the composite film layer between the second barrier groove and the third barrier groove forms a second barrier part; the second barrier part is arranged around at least part of the display area; The peripheral area further comprises a driving wire area, at least part of the orthographic projection of the second barrier part is located in the driving wire area, and the orthographic projection of the first barrier part is located outside the driving wire area; The composite film layer comprises: a base film layer, the base film layer at least comprises a first metal layer located on the side of the substrate away from the substrate, and comprises a first sub-part located in the peripheral area; a first flat layer located on the side of the base film layer away from the substrate and covering the first metal layer, and comprising a first sub-part located in the peripheral area; the first sub-part of the first flat layer has no overlap with the orthographic projection of the first barrier groove in the orthographic projection of the substrate, and the first sub-part of the first flat layer has no overlap with the orthographic projection of the second barrier groove in the orthographic projection of the substrate; a pixel definition layer located on the side of the first flat layer away from the substrate, comprising a first sub-part located in the peripheral area; the first sub-part of the pixel definition layer has no overlap with the orthographic projection of the first barrier groove in the orthographic projection of the substrate, and the first sub-part of the pixel definition layer has no overlap with the orthographic projection of the second barrier groove in the orthographic projection of the substrate; The composite film layer further comprises: ​ ​ The first electrode layer is located on the side of the first planar layer away from the substrate, and includes a first sub-portion located in the peripheral area; and the pixel definition layer covers the side of the first sub-portion of the first electrode layer away from the substrate, and the pixel definition layer covers the side surface of the first electrode layer away from the side cut-off line of the display area; The peripheral area includes a bottom area located at the bottom of the display panel; two rounded corner areas and a connecting area between the two rounded corner areas are arranged in the bottom area; The auxiliary barrier portion is arranged in the rounded corner area; a projection of the auxiliary barrier portion on the substrate is located in a projection of the second barrier groove on the substrate; the auxiliary barrier portion is spaced apart from the first barrier portion and the second barrier portion in the first direction; the auxiliary barrier portion includes a first structure layer and a second structure layer stacked in the first direction; the first structure layer is arranged in the same layer as the first sub-portion of the first planar layer; the second structure layer is arranged in the same layer as the first sub-portion of the pixel definition layer; and at least part of the cut-off line is located in the projection of the auxiliary barrier portion on the substrate.

2. The display panel of claim 1, wherein, The second barrier portion includes a sub-barrier portion; the sub-barrier portion includes the first sub-portion of the pixel definition layer; and the first sub-portion of the first planar layer forms a groove bottom of the third barrier groove.

3. The display panel of claim 1, wherein, The second barrier portion includes a sub-barrier portion; the sub-barrier portion includes the first sub-portion of the pixel definition layer and the first sub-portion of the first planar layer; The first sub-portion of the first metal layer forms the groove bottom of the third barrier groove; Alternatively, the first sub-portion of the first planar layer and the first sub-portion of the first metal layer form the groove bottom of the third barrier groove; and the first sub-portion of the first metal layer forming the groove bottom of the third barrier groove is connected to the side wall of the third barrier groove formed by the sub-barrier portion.

4. The display panel of claim 1, wherein, The second barrier portion includes at least two sub-barrier portions; each two sub-barrier portions are separated by a sub-barrier groove; the at least two sub-barrier portions are spaced apart in the first direction; and each second barrier portion surrounds at least part of the display area; The first sub-portion of the first planar layer forms the groove bottom of the third barrier groove; Alternatively, the first sub-portion of the first metal layer forms the groove bottom of the third barrier groove; Alternatively, the first sub-portion of the first planar layer and the first sub-portion of the first metal layer form the groove bottom of the third barrier groove; and the first sub-portion of the first metal layer forming the groove bottom of the third barrier groove is connected to the side wall of the third barrier groove formed by the sub-barrier portion.

5. The display panel of claim 4, wherein, The second barrier portion includes two sub-barrier portions and a sub-barrier groove; wherein: In the first direction, the sub-barrier portion close to the display area includes the first sub-portion of the pixel definition layer; the first sub-portion of the first planar layer forms the groove bottom of the third barrier groove; In the first direction, the sub-barrier portion away from the display area includes the first sub-portion of the pixel definition layer and the first sub-portion of the first planar layer; and the first metal layer forms the groove bottom of the sub-barrier groove.

6. The display panel of any of claims 2-4, wherein, The width of the sub-barrier portion along the first direction ranges from 5 μm to 20 μm.

7. The display panel of claim 6, wherein, The width of the first barrier portion along the first direction ranges from 20 μm to 40 μm.

8. The display panel of any of claims 1-5, wherein, The first barrier portion surrounds the display area. The second barrier portion surrounds the display area.

9. The display panel of claim 1, wherein, The extension length of the auxiliary barrier portion in the orthographic projection of the substrate is greater than 2000 μm.

10. The display panel of any one of claims 1-5, wherein, The peripheral area further comprises a power supply trace area, which is located on the side of the drive trace area away from the display area along the first direction. The base film layer further comprises: The first sub-portion of the first metal layer comprises a first part located in the power supply trace area; The second planar layer is located between the first metal layer and the substrate, and comprises a first sub-portion located in the peripheral area; The second metal layer is located between the substrate and the second planar layer, and comprises a first sub-portion located in the peripheral area, wherein the first sub-portion of the second metal layer comprises a first part located in the power supply trace area and a second part located in the drive trace area; The third planar layer is located between the second metal layer and the substrate, and comprises a first sub-portion located in the peripheral area; The third metal layer is located between the substrate and the third planar layer, and comprises a first sub-portion located in the peripheral area; the first sub-portion of the third metal layer comprises a first part located in the power supply trace area and a second part located in the drive trace area; The first part of the first metal layer, the first part of the second metal layer, and the first part of the third metal layer are overlapped, and the overlapped positions of the first sub-portion of the first metal layer, the first part of the second metal layer, and the first part of the third metal layer are located in the orthographic projection of the substrate within the second barrier groove in the orthographic projection of the substrate.

11. The display panel of any of claims 1-5, wherein, The peripheral area is further provided with at least one crack barrier portion, which is located on the side of the first barrier portion away from the second barrier portion along the first direction and is spaced apart from the first barrier portion; the crack barrier portion surrounds the display area.

12. The display panel of claim 11, wherein, The number of the crack barrier portions is greater than 2 and less than 5; adjacent crack barrier portions are spaced apart along the first direction.

13. A display device comprising: The display panel comprises the display panel according to any one of claims 1-12.

Images