Display module and display device

Abstract

The invention provides a display module and a display device. The problem that in the prior art, reliability of a display product is low is solved. The display module comprises a display panel, and the display panel is provided with a display area and a frame area at least partially surrounding the display area. The display panel includes: a substrate; the multiple inorganic layers are stacked on one side of the substrate, at least one groove is formed in the multiple inorganic layers, the grooves penetrate through the at least one inorganic layer in the thickness direction of the substrate, and the grooves are located in the frame area; the first packaging layer is located on the side, away from the substrate, of the multiple inorganic layers and fills partial space of the groove; the second packaging layer is located on the side, away from the substrate, of the first packaging layer, and part of the second packaging layer is embedded into the space, not filled with the first packaging layer, in the groove.

Description

Technical Field

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

[0002] With the rapid development of display technology, consumers and terminal companies have increasingly narrowed the borders of products, which can increase the display area. However, during the reliability test of narrow-border products, film separation may occur, resulting in a low yield of display products. Summary of the invention

[0003] In view of this, the embodiments of the present application provide a display module and a display device, which solve the problem of low reliability of display products in the prior art.

[0004] The first aspect of the present application provides a display module, including a display panel, the display panel having a display area and a frame area at least partially surrounding the display area. The display panel includes: a substrate; a plurality of inorganic layers, stacked on one side of the substrate, the plurality of inorganic layers are provided with at least one groove, the groove penetrates at least one inorganic layer along the thickness direction of the substrate, and the groove is located in the frame area; a first encapsulation layer, located on the side of the plurality of inorganic layers away from the substrate, and fills part of the space in the groove; and a second encapsulation layer, located on the side of the first encapsulation layer away from the substrate, and part of the second encapsulation layer is embedded in the space in the groove that is not filled by the first encapsulation layer. The advantage is that by opening a groove on the inorganic layer of the display panel and arranging the first encapsulation layer and the second encapsulation layer to be embedded in the groove together, the bonding force between the inorganic layer, the first encapsulation layer, and the second encapsulation layer is improved, the structural stability is enhanced, and the probability of film layer separation is reduced, thereby improving the yield of the display panel.

[0005] In combination with the first aspect, in some possible implementations, the display module further includes at least one dam, the dam is located between the multiple inorganic layers and the first encapsulation layer, and is located in the frame area; the orthographic projection of the groove on the substrate is located between the orthographic projection of the dam on the substrate and the edge line of the orthographic projection of the first encapsulation layer on the substrate; preferably, the display panel further includes a bonding area, which is located on the side of the frame area away from the display area, and the groove is located in the frame area between the bonding area and the display area; or, the groove surrounds the display area; preferably, the at least one dam includes a first dam and a second dam, the first dam surrounds the display area, and the second dam surrounds the display area. The dam surrounds the first dam; preferably, in the thickness direction of the substrate, the height of the second dam is greater than that of the first dam; preferably, the display panel also includes a planarization layer, a pixel definition layer and a support layer stacked in a direction away from the substrate, the planarization layer, the pixel definition layer and the support layer are located between the multiple inorganic layers and the first encapsulation layer, and are located in the display area; the dam includes multiple stacked sub-portions, the sub-portions and one of the planarization layer, the pixel definition layer and the support layer are in the same layer and the same material; preferably, the display panel also includes multiple light-emitting devices, the pixel definition layer encloses multiple pixel openings, and the light-emitting devices are located in the pixel openings.

[0006] In combination with the first aspect, in some possible implementations, the display module also includes a touch line located on the side of the second packaging layer facing away from the substrate, and the orthographic projection of the touch line on the substrate overlaps with the orthographic projection of the groove on the substrate; preferably, the display panel also includes a conductive part and an insulating part stacked in sequence on the side of at least part of the multiple inorganic layers facing away from the substrate, and the conductive part and the insulating part are both located on the side of the groove away from the display area; the insulating part includes a first via hole, and the touch line extends into the first via hole and contacts with the conductive part; preferably, the display panel also includes a protective layer, and at least part of the protective layer is located in the frame area; in the frame area, the protective layer is located between the insulating part and the conductive part, and the protective layer includes a second via hole, and the second via hole It is connected to the first via hole, and the orthographic projection of the first via hole on the substrate is located within the range of the orthographic projection of the second via hole on the substrate; preferably, the display panel also includes a planarization layer, which is located on the side of the protective layer away from the substrate and is located in the display area; the insulating part and the planarization layer are in the same layer and have the same material; preferably, the protective layer includes a patterned surface, and the patterned surface is in contact with the first encapsulation layer; preferably, the orthographic projection of at least part of the patterned surface on the substrate surrounds the orthographic projection of the groove on the substrate; preferably, at least part of the patterned surface is located between adjacent dams; preferably, the multiple inorganic layers also include at least one of an interlayer insulating layer, a capacitor inorganic layer, a gate inorganic layer, and a barrier layer stacked in sequence along a direction close to the substrate.

[0007] In combination with the first aspect, in some possible implementations, the display module further includes a first glue layer, which is located between the touch wiring and the second encapsulation layer and is located in the frame area; preferably, the display panel further includes at least one dam, which is located between the plurality of inorganic layers and the first encapsulation layer and is located on the side of the groove close to the display area; the orthographic projection of the first glue layer on the substrate covers the orthographic projection of the dam on the substrate; preferably, the orthographic projection of the first glue layer on the substrate away from the edge of the display area does not exceed the end of the orthographic projection of the touch wiring on the substrate away from the display area; preferably, the display panel further includes a third encapsulation layer, which is located between the first encapsulation layer and the first encapsulation layer. The first adhesive layer is located between the second encapsulation layer and the second encapsulation layer, and is located on the side of the dam close to the display area; the orthographic projection of the first adhesive layer on the substrate partially overlaps with the orthographic projection of the third encapsulation layer on the substrate; preferably, the display module also includes a second adhesive layer, which is located on the side of the touch line away from the substrate and is located in the frame area; preferably, the display module also includes a third adhesive layer, which is located on the side of the second adhesive layer away from the substrate and extends from the display area to the frame area; preferably, the display module also includes a touch metal layer, which is located between the second encapsulation layer and the third adhesive layer, and is located in the display area; preferably, the display module also includes a polarizer, which is located on the side of the third adhesive layer away from the substrate. The advantage of setting the first adhesive layer is that, on the one hand, the first adhesive layer plays a flattening role, which is used to reduce the height difference below the first adhesive layer in the frame area. On the other hand, the first adhesive layer separates the touch line and the second encapsulation layer, reducing the degree of mutual negative influence between the two during the reliability test. The mutual negative influence mentioned here means that when bending, the touch line is subjected to bending stress and moves in the direction away from the display area. During the reliability test, the second encapsulation layer moves toward the display area with the polarizer. That is, the touch wiring and the second packaging layer move in opposite directions, so the film separation problem may occur due to stress.

[0008] In combination with the first aspect, in some possible implementations, at least one groove includes multiple grooves, and the multiple grooves are arranged in sequence in the direction from the display area to the frame area; preferably, in the direction from the display area to the frame area, the widths of different grooves are equal; or, the widths of different grooves are unequal; preferably, in the thickness direction of the substrate, the depths of different grooves are equal; or, the depths of different grooves are unequal; preferably, in the plane formed by a first direction from the display area to the frame area and a second direction perpendicular to the substrate, the cross-sectional shape of the groove includes any one of a rectangle, a regular trapezoid, an inverted trapezoid, and a semicircle.

[0009] In combination with the first aspect, in some possible implementations, the display panel also includes at least one dam, which is located between the multiple inorganic layers and the first encapsulation layer and on the side of the groove close to the display area; the display module also includes a touch line, which is located on the side of the second encapsulation layer away from the substrate, and the orthographic projection of the touch line on the substrate overlaps with the orthographic projection of the dam on the substrate; the touch line includes a first part and a second part alternately arranged along the extension direction of the touch line, and the orthographic projection of at least part of the first part on the substrate overlaps with the orthographic projection of the dam on the substrate, and / or, the orthographic projection of at least part of the first part on the substrate overlaps with the edge of the orthographic projection of the second encapsulation layer on the substrate and the edge of the orthographic projection of the first encapsulation layer on the substrate; the line width of at least part of the first part is greater than the line width of the second part.

[0010] In combination with the first aspect, in some possible implementations, at least one dam includes multiple dams, and the orthographic projection of each dam on the substrate overlaps with the orthographic projection of a first part on the substrate; preferably, the edge of the orthographic projection of the first packaging layer on the substrate and the edge of the orthographic projection of the second packaging layer on the substrate overlap with the orthographic projection of the same first part on the substrate.

[0011] In combination with the first aspect, in some possible implementations, in the width direction of the dam, the length of the first part is greater than or equal to the width of the dam overlapping with the orthographic projection of the first part on the substrate; preferably, at least one dam includes multiple dams, and the widths of different dams are equal or different; preferably, in the width direction of the dam, the lengths of different first parts are equal; preferably, in the extension direction of the dam, the spacing between the second parts of adjacent touch traces is greater than the line width of the second parts; preferably, the shape of the orthographic projection of the first part on the substrate includes any one of a circle, an ellipse, a trapezoid, a rhombus, and a regular polygon.

[0012] In combination with the first aspect, in some possible implementations, the first part includes a through hole, and the through hole passes through the touch line along the thickness direction of the substrate; preferably, the orthographic projection shape of the through hole on the substrate is the same as the orthographic projection shape of the first part on the substrate; preferably, the orthographic projection shape of the through hole on the substrate includes any one of a circle, an ellipse, a trapezoid, a rhombus, and a regular polygon.

[0013] In combination with the first aspect, in some possible implementations, the display module further includes a polarizer located on a side of the second encapsulation layer away from the substrate; the edge of the orthographic projection of the polarizer on the substrate is located on a side of the orthographic projection of the groove on the substrate away from the display area; preferably, the edge of the orthographic projection of the polarizer on the substrate is located between the orthographic projection of the groove on the substrate and the edge of the orthographic projection of the second encapsulation layer on the substrate; or, the display module further includes a touch wiring, which is located on a side of the second encapsulation layer away from the substrate; the display panel further includes a conductive portion and an insulating portion, which are sequentially stacked on at least a portion of the multiple inorganic layers away from the substrate. On one side of the substrate, the insulating part includes a first via hole, the touch wiring extends into the first via hole and contacts the conductive part; the edge of the orthographic projection of the polarizer on the substrate is located between the orthographic projection of the second packaging layer on the substrate and the edge of the orthographic projection of the insulating part on the substrate close to the display area; preferably, the distance between the edge of the orthographic projection of the polarizer on the substrate and the edge of the orthographic projection of the second packaging layer on the substrate is greater than or equal to 60 microns; preferably, the distance between the edge of the orthographic projection of the polarizer on the substrate and the edge of the orthographic projection of the second packaging layer on the substrate is greater than or equal to 80 microns and less than or equal to 120 microns.

[0014] In combination with the first aspect, in some possible implementations, the orthographic projection of the first encapsulation layer on the substrate is located within the range of the orthographic projection of the second encapsulation layer on the substrate.

[0015] The second aspect of the present application provides another display module, including: a display panel having a display area and a frame area at least partially surrounding the display area; the display panel includes a substrate and at least one dam, the dam is located on one side of the substrate and in the frame area; and a touch line, located on the side of the dam away from the substrate, the orthographic projection of the touch line on the substrate overlaps with the orthographic projection of the dam on the substrate; wherein the touch line includes a first part and a second part alternately arranged, the orthographic projection of at least part of the first part on the substrate overlaps with the orthographic projection of the dam on the substrate, and the line width of at least part of the first part is greater than the line width of the second part. The advantage is that by setting the line width of the first part greater than the line width of the second part, the risk of damage to the touch line can be reduced and the reliability can be improved. Specifically, the inventors have found that in the preparation process of the display panel, the thickness of the second glue layer above the dam is relatively thin, the protection of the touch line below is insufficient, and it is more susceptible to etching damage. Therefore, by increasing the line width of the touch line above the dam, that is, the line width of the first part, the probability of the touch line being damaged by etching can be reduced, thereby improving reliability.

[0016] In combination with the second aspect, in some possible implementations, the display panel also includes a first encapsulation layer and a second encapsulation layer located between the dam and the touch line, the second encapsulation layer being located on the side of the first encapsulation layer away from the substrate; an orthographic projection of the first portion on the substrate overlaps with an edge of an orthographic projection of the first encapsulation layer on the substrate and an edge of an orthographic projection of the second encapsulation layer on the substrate.

[0017] In combination with the second aspect, in some possible implementations, the display panel also includes multiple inorganic layers, and the multiple inorganic layers are located between the dam and the substrate; the multiple inorganic layers are provided with at least one groove, and the groove penetrates at least one inorganic layer along the thickness direction of the substrate, and the groove is located in the border area; preferably, the groove is located on the side of the dam away from the display area; preferably, the display panel also includes a first encapsulation layer and a second encapsulation layer located between the dam and the touch wiring, the first encapsulation layer is located on the side of the multiple inorganic layers away from the substrate, and fills part of the space in the groove; the second encapsulation layer is located on the side of the first encapsulation layer away from the substrate, and part of the second encapsulation layer is embedded in the space in the groove that is not filled by the first encapsulation layer.

[0018] In combination with the second aspect, in some possible implementations, the display panel further includes a second encapsulation layer, which is located on the side of the dam away from the substrate; the display module further includes a polarizer, which is located on the side of the touch wiring away from the substrate; the edge of the orthographic projection of the polarizer on the substrate is located on the side of the orthographic projection of the dam on the substrate away from the display area; preferably, the edge of the orthographic projection of the polarizer on the substrate is located between the orthographic projection of the dam on the substrate and the edge of the orthographic projection of the second encapsulation layer on the substrate; or, the display module further includes a touch wiring, which is located on the side of the second encapsulation layer away from the substrate; the display panel further includes a conductive portion and an insulating portion, which are sequentially stacked on the side of at least part of the multiple inorganic layers away from the substrate, and the insulating portion is stacked on the side of the touch wiring away from the substrate. The part includes a first via hole, the touch wiring extends into the first via hole and contacts the conductive part; the edge of the orthographic projection of the polarizer on the substrate is located between the edge of the orthographic projection of the second packaging layer on the substrate and the edge of the orthographic projection of the insulating part on the substrate close to the display area; preferably, the distance between the edge of the orthographic projection of the polarizer on the substrate and the edge of the orthographic projection of the second packaging layer on the substrate is greater than or equal to 60 microns; preferably, the distance between the edge of the orthographic projection of the polarizer on the substrate and the edge of the orthographic projection of the second packaging layer on the substrate is greater than or equal to 80 microns and less than or equal to 120 microns; preferably, the orthographic projection of the first packaging layer on the substrate is located within the range of the orthographic projection of the second packaging layer on the substrate.

[0019] The third aspect of the present application provides another display module, comprising: a display panel having a display area and a frame area at least partially surrounding the display area; the display panel comprises a substrate and a second encapsulation layer, the second encapsulation layer is located on one side of the substrate; and a polarizer, located on the side of the second encapsulation layer away from the substrate, the edge of the orthographic projection of the polarizer on the substrate is located on the side of the orthographic projection of the second encapsulation layer on the substrate away from the display area. The advantage is that the edge of the polarizer extends in the direction away from the display area, that is, on the projection plane in the thickness direction of the substrate, the edge of the polarizer is arranged between the edge of the second encapsulation layer and the insulating portion. In this way, the pulling of the second encapsulation layer and the second encapsulation layer caused by the shrinkage of the polarizer during reliability testing can be reduced, further reducing the risk of film separation in the frame area.

[0020] In combination with the third aspect, in some possible implementations, the display module also includes a touch routing, which is located on the side of the second packaging layer facing away from the substrate; the display panel also includes a conductive part and an insulating part, which are sequentially stacked on the side of at least part of the multiple inorganic layers facing away from the substrate, the insulating part includes a first via, the touch routing extends into the first via and contacts the conductive part; the edge of the orthographic projection of the polarizer on the substrate is located between the edge of the orthographic projection of the second packaging layer on the substrate and the edge of the orthographic projection of the insulating part on the substrate close to the display area; preferably, the distance between the edge of the orthographic projection of the polarizer on the substrate and the edge of the orthographic projection of the second packaging layer on the substrate is greater than or equal to 60 microns; preferably, the distance between the edge of the orthographic projection of the polarizer on the substrate and the edge of the orthographic projection of the second packaging layer on the substrate is greater than or equal to 80 microns and less than or equal to 120 microns; preferably, the orthographic projection of the first packaging layer on the substrate is located within the range of the orthographic projection of the second packaging layer on the substrate.

[0021] In combination with the third aspect, in some possible implementations, the display panel also includes a first encapsulation layer and multiple inorganic layers located between the substrate and the second encapsulation layer, and the multiple inorganic layers and the first encapsulation layer are stacked in sequence in a direction away from the substrate; the multiple inorganic layers are provided with at least one groove, the groove penetrates at least one inorganic layer along the thickness direction of the substrate, and the groove is located in the border area; the first encapsulation layer fills part of the space in the groove, and part of the second encapsulation layer is embedded in the space in the groove not filled by the first encapsulation layer.

[0022] In combination with the third aspect, in some possible implementations, the display panel also includes at least one dam, which is located between the substrate and the second packaging layer; the display module also includes a touch line, which is located between the second packaging layer and the polarizer, and the orthographic projection of the touch line on the substrate overlaps with the orthographic projection of the dam on the substrate; the touch line includes a first part and a second part alternately arranged along the extension direction of the touch line, the orthographic projection of at least part of the first part on the substrate overlaps with the orthographic projection of the dam on the substrate, and the line width of at least part of the first part is greater than the line width of the second part.

[0023] A fourth aspect of the present application provides a display device, comprising the display module provided by any of the above embodiments.

[0024] According to the display module and display device provided in the embodiments of the present application, by opening a groove on the inorganic layer of the display panel and arranging the first encapsulation layer and the second encapsulation layer to be embedded in the groove together, the bonding force between the inorganic layer, the first encapsulation layer, and the second encapsulation layer is improved, the structural stability is enhanced, and the probability of film layer separation is reduced, thereby improving the yield of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1This is a schematic diagram of the top structure of the display module provided in the first embodiment of the present application before being bent.

[0026] Figure 2 for Figure 1 The figure shows a schematic diagram of the side structure of the display module after being bent.

[0027] Figure 3 The first embodiment of the present application provides Figure 1 and Figure 2 A schematic cross-sectional view of a first partial area of ​​a display module is shown.

[0028] Figure 4 for Figure 1 and Figure 2 A schematic cross-sectional view of a second partial area of ​​the display module is shown.

[0029] Figure 5 The second embodiment of the present application provides Figure 1 and Figure 2 A schematic cross-sectional view of a first partial area of ​​a display module is shown.

[0030] Figure 6 This is a schematic diagram of the top structure of the display module provided in the second embodiment of the present application before being bent.

[0031] Figure 7 This is a schematic diagram of the top structure of the display module before bending provided in the third embodiment of the present application.

[0032] Figure 8a-8f Schematic diagrams of various structures of grooves provided in embodiments of the present application.

[0033] Fig. 9 A schematic diagram of a top view of the structure of a mask plate provided in one embodiment of the present application.

[0034] Fig.10 To use Fig. 9 The mask shown is a schematic diagram of a process of preparing the first encapsulation layer and the second encapsulation layer in the display module provided in any of the above embodiments.

[0035] Fig.11 The first embodiment of the present application provides Figure 3 A schematic diagram of the top view structure of a local area of ​​a display module is shown.

[0036] Fig.12 for Fig.11 A partial enlarged view of .

[0037] Fig.13 The second embodiment of the present application provides Figure 3 A schematic diagram of the top view structure of a local area of ​​a display module is shown.

[0038] Fig.14The third embodiment of the present application provides Figure 3 A schematic diagram of the top view structure of a local area of ​​a display module is shown.

[0039] Fig.15 The fourth embodiment of the present application provides Figure 3 A schematic diagram of the top view structure of a local area of ​​a display module is shown.

[0040] Fig.16 The fifth embodiment of the present application provides Figure 3 A schematic diagram of the top view structure of a local area of ​​a display module is shown.

[0041] Fig.17 The sixth embodiment of the present application provides Figure 3 A schematic diagram of the top view structure of a local area of ​​a display module is shown.

[0042] Fig.18 The third embodiment of the present application provides Figure 1 and Figure 2 A schematic cross-sectional view of a first partial area of ​​a display module is shown.

[0043] Fig.19 A schematic diagram of the structure of a display device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0045] In the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It is understood that when a structure is referred to as being "on or under" another structure, the structure may be directly on or under the other structure, or there may be intermediate structures. The same reference numerals always indicate the same structure. The structures mentioned herein include any of a film layer, an element, a device, a component, and an assembly.

[0046] When a structure is referred to as being “connected” to another structure, the structure may be directly connected to the other structure or indirectly connected to the other structure with one or more intervening structures interposed therebetween.

[0047] In this specification, "electrical connection" includes the case where components are connected together through an element having some electrical function. There is no particular limitation on the "element having some electrical function" as long as it can transmit and receive electrical signals between the connected components. Examples of "element having some electrical function" include not only electrodes and wiring, but also switching elements such as transistors, resistors, inductors, capacitors, and other elements having various functions.

[0048] In this specification, the term “same-layer arrangement” refers to a structure in which two (or more) structures are formed by the same patterning process, and their materials may be the same or different.

[0049] Figure 1 This is a schematic diagram of the top structure of the display module provided in the first embodiment of the present application before being bent. Figure 2 for Figure 1 The side structure diagram of the display module after bending is shown. Figure 1 and Figure 2 As shown, the display module includes a display panel 10 and a polarizer 20. The display panel 10 has a display area AA, a frame area NA, a bending area SA and a bonding area BA. The frame area NA at least partially surrounds the display area AA, the bonding area BA is located on the side of the frame area NA away from the display area AA, and the bending area SA is located between the frame area NA and the bonding area BA. The polarizer 20 is stacked on the display side of the display panel 10, and at least part of the polarizer 20 is located in the display area AA.

[0050] The display module may further include a bending protection layer (BPL) 30, which is stacked on the display side of the display panel and located in the bending area SA and part of the frame area NA. One end of the BPL 30 close to the display area AA is connected to the polarizer 20 or there is a gap.

[0051] The display module may further include a flexible circuit board 40 electrically connected to the bonding area BA of the display panel 10 .

[0052] The display module may also include a supporting protective film (Bottom Plate Film, BPF) 50, a padding block 60, and some auxiliary materials 70. BPF50 is located on the non-display side of the display panel 10 and avoids the bending area SA. Exemplarily, BPF50 includes a hollow area, and the hollow area is opposite to the bending area SA to avoid the bending area SA. Exemplarily, the display module includes two BPF50, the first BPF50 is overlapped with the display area AA, and the second BPF50 is overlapped with the bonding area BA and the flexible circuit board 40. The padding block 60 is located between the two BPF50 to provide support. The auxiliary material 70 includes, for example, copper foil, foam, etc., and the auxiliary material 70 is located between the padding block 60 and the first BPF50.

[0053] Figure 3 The first embodiment of the present application provides Figure 1 and Figure 2 A schematic cross-sectional view of a first partial area of ​​a display module is shown. Figure 3 Shows Figure 1 and Figure 2 Schematic diagram of a cross section at a local area Q1 in FIG. Figure 4 for Figure 1 and Figure 2 A schematic cross-sectional view of a second partial area of ​​the display module is shown. Figure 4 A schematic diagram showing a cross section of the display area AA is shown.

[0054] Combination Figure 3 and Figure 4 As shown, the display panel 10 includes a substrate 111, a plurality of inorganic layers 112, a first encapsulation layer 131, and a second encapsulation layer 132. Among them, the plurality of inorganic layers 112 are stacked on one side of the substrate 111, and the plurality of inorganic layers 112 are provided with at least one groove G, and the groove G penetrates at least one inorganic layer 112 along the thickness direction of the substrate 111, and the groove G is located in the frame area NA. The first encapsulation layer 131 is located on the side of the plurality of inorganic layers 112 away from the substrate 11, and fills part of the space of the groove G. The second encapsulation layer 132 is located on the side of the first encapsulation layer 131 away from the substrate 11, and part of the second encapsulation layer 132 is embedded in the space in the groove G that is not filled by the first encapsulation layer 131.

[0055] In some embodiments, the substrate 111 may be a glass-based substrate.

[0056] In some embodiments, the substrate 111 may include an organic resin material such as epoxy resin, triazine, silicone resin, or polyimide. For example, the substrate 111 may be a printed circuit board (PCB) that is easily deformable.

[0057] The inorganic layer 112 includes a barrier layer and / or an insulating layer. The inorganic layer 112 extends from the display area AA to the frame area NA. Exemplarily, the plurality of inorganic layers 112 include at least one of an interlayer insulating layer, a capacitor inorganic layer, a gate inorganic layer, and a barrier layer stacked in sequence in a direction close to the substrate 11.

[0058] like Figure 4As shown, the display panel 10 also includes a plurality of conductive layers 113, which are located in the display area AA. An inorganic layer 112 is arranged between adjacent conductive layers 113. Exemplarily, the plurality of conductive layers 113 include a first metal layer M1, a second metal layer M2, and a third metal layer M3 stacked in sequence in a direction away from the substrate 111. In a direction away from the substrate 111, a barrier layer, a first metal layer M1, a gate inorganic layer, a second metal layer M2, a capacitor inorganic layer, a third metal layer M3, and an interlayer insulating layer are stacked in sequence. The plurality of conductive layers 113 and the inorganic layer 112 between adjacent conductive layers 113 cooperate with each other to form a pixel circuit. Exemplarily, the pixel circuit is a 7T1C pixel circuit or an 8T1C pixel circuit, etc.

[0059] The first encapsulation layer 131 and the second encapsulation layer 132 are both inorganic layers. Exemplarily, the orthographic projection of the second encapsulation layer 132 on the substrate 111 covers the orthographic projection of the first encapsulation layer 131 on the substrate 111 .

[0060] like Figure 4 As shown, the display panel 10 further includes a pixel definition layer 121 and a plurality of light emitting devices 122, and the pixel definition layer 121 and the light emitting devices 122 are both located in the display area AA. The pixel definition layer 121 and the light emitting devices 122 are located between the plurality of inorganic layers 112 and the first encapsulation layer 131, and the pixel definition layer 121 encloses a plurality of pixel openings, and the light emitting devices 122 are located in the pixel openings. The light emitting devices 122 are electrically connected to the pixel circuit, and emit light at a predetermined brightness under the drive of the pixel circuit to realize the display function.

[0061] The light-emitting device 122 may be an organic light-emitting diode (OLED), a micro light-emitting diode (Micro LED), a quantum dot light-emitting diode (QLED), etc. The light-emitting device 122 may be a light-emitting device of various colors, such as a red light-emitting device R, a green light-emitting device G, a blue light-emitting device B, etc. The light-emitting device 122 includes a first electrode 1221, at least one light-emitting functional layer 1222, and a second electrode 1223 stacked in a direction gradually away from the substrate 111. Exemplarily, the first electrode 1221 is an anode and the second electrode 1223 is a cathode. Alternatively, the first electrode 1221 is a cathode and the second electrode 1223 is an anode.

[0062] In one embodiment, the display panel 10 may further include a supporting layer 123 located on a side of the pixel definition layer 121 facing away from the substrate 111 .

[0063] like Figure 4As shown, in one embodiment, the display panel 10 further includes a planarization layer 114 located between the pixel definition layer 121 and the inorganic layer 112 .

[0064] Combination Figure 3 and Figure 4 As shown, the display panel 10 may further include a third encapsulation layer 133, and the third encapsulation layer 133 is located between the first encapsulation layer 131 and the second encapsulation layer 132. Exemplarily, the third encapsulation layer 133 is an organic layer. In one embodiment, the orthographic projection of the third encapsulation layer 133 on the substrate 111 is located within the orthographic projection range of the first encapsulation layer 131 on the substrate 111, and the orthographic projection of the first encapsulation layer 131 on the substrate 111 is located within the orthographic projection range of the second encapsulation layer 132 on the substrate 111.

[0065] The display module provided according to this embodiment includes a display module. By opening a groove G on the inorganic layer 112 of the display panel 10, and arranging the first encapsulation layer 131 and the second encapsulation layer 132 to be embedded in the groove G together, the bonding force between the inorganic layer 112, the first encapsulation layer 131, and the second encapsulation layer 132 is improved, the structural stability is enhanced, and the probability of film layer separation is reduced, thereby improving the yield of the display panel.

[0066] In one embodiment, Figure 3 As shown, the display panel 10 further includes at least one dam 115, which is located between the plurality of inorganic layers 112 and the first encapsulation layer 131 and located in the frame area NA. The orthographic projection of the groove G on the substrate 111 is located between the orthographic projection of the dam 115 on the substrate 111 and the edge line of the orthographic projection of the first encapsulation layer 131 on the substrate 111.

[0067] It should be noted that grooves G may also be provided between adjacent dams 115. Compared with providing grooves G between adjacent dams 115, providing grooves G on the side of the dam 115 away from the display area AA, in the former solution, grooves G are closer to the boundary between the first encapsulation layer 131 and the second encapsulation layer 132, and the boundary is where the film separation starts, so the film separation problem can be better solved. At the same time, in order to achieve a narrow frame, the spacing between adjacent dams 18 is small, and generally cannot accommodate more grooves G, so that the number of grooves G is limited.

[0068] In one embodiment, Figure 3 As shown, at least one dam 115 includes a first dam and a second dam, the first dam surrounds the display area AA, and the second dam surrounds the first dam. It should be noted that the present application does not limit the number of dams 115, and the number of dams 115 can be reasonably set according to actual needs.

[0069] In one embodiment, Figure 3As shown, the height of the second dam is greater than that of the first dam in the thickness direction of the substrate 111. Thus, the second dam has a better blocking capability than the first dam and can better block the overflow of the organic encapsulation material.

[0070] In one embodiment, Figure 3 As shown, the dam 115 includes a plurality of stacked sub-portions, each of which is in the same layer and made of the same material as the planarization layer 114, the pixel definition layer 121, and the support layer 123. Exemplarily, the first dam includes two stacked sub-portions, each of which is in the same layer and made of the same material as the pixel definition layer 121 and the support layer 123. The second dam includes three stacked sub-portions, each of which is in the same layer and made of the same material as the planarization layer 114, the pixel definition layer 121, and the support layer 123.

[0071] like Figure 3 As shown, the display module further includes a touch line 141 located on the side of the second packaging layer 132 away from the substrate 111 , and the orthographic projection of the touch line 141 on the substrate 111 overlaps with the orthographic projection of the groove G on the substrate 111 .

[0072] In one embodiment, the display panel 10 further includes a conductive portion 116 and an insulating portion 117 sequentially stacked on at least a portion of the plurality of inorganic layers 112 on a side away from the substrate 111, and the conductive portion 116 and the insulating portion 117 are both located on a side of the groove G away from the display area AA. The insulating portion 117 includes a first via hole h1, and the touch line 141 extends into the first via hole h1 and contacts the conductive portion 116. The first via hole h1 is used to switch the touch line 141 to the conductive portion 116, and the groove G is located on a side of the first via hole h1 close to the display area AA. Exemplarily, in combination Figure 3 and Figure 4 As shown, the conductive portion 116 and the third metal layer M3 are formed in the same layer and made of the same material, and the insulating portion 117 and the planarization layer 114 are formed in the same layer and made of the same material.

[0073] In one embodiment, the display panel further includes a protective layer PVX, at least part of which is located in the frame area NA. In the frame area NA, the protective layer PVX is located between the insulating portion 117 and the conductive portion 116. The protective layer PVX includes a second via h2, the second via h2 is connected to the first via h1, and the orthographic projection of the first via h1 on the substrate 111 is located within the orthographic projection range of the second via h2 on the substrate 111. The protective layer PVX is used to provide protection for the conductive portion 116. The material of the protective layer PVX may be an inorganic material. Exemplarily, the protective layer PVX extends from the display area AA to the frame area NA, that is, the protective layer PVX is a whole-surface film layer. The conductive portion 116 and the third metal layer M3 are in the same layer, and the insulating portion 117 and the planarization layer 114 are in the same layer. In the frame area NA, the protective layer PVX is located between the insulating portion 117 and the conductive portion 116, and in the display area AA, the protective layer PVX is located between the third metal layer M3 and the planarization layer 114. In this case, the groove G runs through the protective layer PVX.

[0074] In one embodiment, the protective layer PVX is the inorganic layer 112 farthest from the substrate 111 among the plurality of inorganic layers 112. The protective layer PVX includes a patterned surface S, and the patterned surface S is in contact with the first encapsulation layer 131. Exemplarily, at least a portion of the orthographic projection of the patterned surface S on the substrate 111 surrounds the orthographic projection of the groove G on the substrate 111, that is, the orthographic projection of the groove G is surrounded by the patterned surface S. Exemplarily, at least a portion of the patterned surface S is located between adjacent dams 115.

[0075] In one embodiment, the plurality of inorganic layers 112 further include at least one of an interlayer insulating layer ILD, a capacitor inorganic layer CI, a gate inorganic layer GI, and a blocking layer BL sequentially stacked in a direction close to the substrate 111 .

[0076] like Figure 3 As shown, the display module also includes a first adhesive layer 142, which is located between the touch wiring 141 and the second encapsulation layer 132, and is located in the frame area NA. On the one hand, the first adhesive layer 142 plays a flattening role, which is used to reduce the height difference below the first adhesive layer 142 in the frame area NA. On the other hand, the first adhesive layer 142 separates the touch wiring 141 and the second encapsulation layer 132, reducing the degree of negative influence between the two during the reliability test. The mutual negative influence mentioned here means that when bent, the touch wiring 141 is subjected to the bending stress and moves in the direction away from the display area. During the reliability test, the second encapsulation layer 132 moves toward the display area AA along with the polarizer 20. That is, the movement directions of the touch wiring 141 and the second encapsulation layer 132 are opposite, so the film separation problem will occur due to stress.

[0077] In one embodiment, the orthographic projection of the first glue layer 142 on the substrate 111 covers the orthographic projection of the bank 115 on the substrate 111 .

[0078] In one embodiment, the edge of the orthographic projection of the first adhesive layer 142 on the substrate 111 away from the display area AA does not exceed the end of the orthographic projection of the touch trace 141 on the substrate 111 away from the display area AA. For example, the edge of the orthographic projection of the first adhesive layer 142 on the substrate 111 away from the display area AA is located on the side of the first via h1 close to the display area AA.

[0079] In one embodiment, the display panel 10 further includes a third encapsulation layer 133, which is located between the first encapsulation layer 131 and the second encapsulation layer 132 and is located on the side of the dam 115 close to the display area AA. The orthographic projection of the first glue layer 142 on the substrate 111 partially overlaps with the orthographic projection of the third encapsulation layer 133 on the substrate 111.

[0080] In one embodiment, the display module further includes a second adhesive layer 143 located on the side of the touch trace 141 away from the substrate 111 and located in the frame area NA. The orthographic projection of the second adhesive layer 143 on the substrate 111 covers the orthographic projection of the first adhesive layer 142 on the substrate 111 .

[0081] In one embodiment, the display module further includes a third adhesive layer 144 , which is located on a side of the second adhesive layer 143 away from the substrate and extends from the display area AA to the frame area NA.

[0082] In one embodiment, the display module further includes a touch metal layer 145 located in the display area AA and between the second encapsulation layer 132 and the third adhesive layer 144. The touch metal layer 145 includes touch electrodes, which are connected to the touch traces 141 through vias in the frame area NA.

[0083] In one embodiment, the display module further includes a polarizer 20, which is located on the side of the third adhesive layer 144 away from the substrate 111. The edge of the orthographic projection of the polarizer 20 on the substrate 111 is located on the side of the orthographic projection of the groove G on the substrate 111 away from the display area AA. Exemplarily, the edge of the orthographic projection of the polarizer 20 on the substrate 111 is located between the edge of the orthographic projection of the groove G on the substrate 111 and the edge of the orthographic projection of the second encapsulation layer 132 on the substrate 111.

[0084] Figure 5 The second embodiment of the present application provides Figure 1 and Figure 2 A schematic cross-sectional view of a first partial area of ​​a display module is shown. Figure 5 Shows Figure 1 and Figure 2 A schematic diagram of a cross section at a local area Q1 in FIG. Figure 5 The display module and Figure 3The difference between the display module shown in the embodiment is that, in the display module provided in the present embodiment, the display module does not include the first adhesive layer 142. Other structures and Figure 3 The display modules shown are the same and will not be described again here.

[0085] Figure 6 This is a schematic diagram of the top view of the display module before bending provided in the second embodiment of the present application. Figure 6 In the display module shown in the embodiment, the groove G is located in the frame area NA between the bonding area BA and the display area AA. For example, the frame area NA of the display panel 10 includes an upper frame, a lower frame, a left frame and a right frame. The bonding area BA is located on the side of the lower frame away from the display area AA, and accordingly, the groove G is located in the lower frame.

[0086] Figure 7 This is a schematic diagram of the top view of the display module before bending provided in the third embodiment of the present application. Figure 7 In the display module shown in the present embodiment, the groove G surrounds the display area AA.

[0087] It should be noted that Figure 6 and Figure 7 Only two grooves G are shown in the figure. The present application does not limit the number of grooves G, which can be reasonably set according to actual needs.

[0088] Figure 8a-8f Schematic diagram of various structures of the grooves provided in the embodiments of the present application. Figure 8a-8f As shown, the at least one groove G includes a plurality of grooves G, and the plurality of grooves G are arranged in sequence in a direction from the display area AA to the frame area NA.

[0089] In one embodiment, in the direction from the display area AA to the frame area NA, the widths of different grooves G are equal. The width mentioned here refers to the width on the same cross section parallel to the substrate 111. For example, Figure 8a-8e As shown, the display panel includes a first groove G1, a second groove G2 and a third groove G3 arranged in sequence along the direction from the display area AA to the frame area NA. On the same cross section parallel to the substrate 111, the first width Y1 of the first groove G1, the second width Y2 of the second groove G2 and the third width Y3 of the third groove G3 are all equal.

[0090] In another embodiment, in the direction from the display area AA to the frame area NA, the widths of different grooves G are different. The width mentioned here refers to the width on the same cross section parallel to the substrate 111. For example, Figure 8fAs shown, the display panel includes a first groove G1, a second groove G2 and a third groove G3 arranged in sequence along the direction from the display area AA to the frame area NA. On the same cross section parallel to the substrate 111, the first width Y1 of the first groove G1, the second width Y2 of the second groove G2, and the third width Y3 of the third groove G3 decrease or increase in sequence.

[0091] In one embodiment, Figure 8a-8d , Figure 8f As shown, in the thickness direction of the substrate 111, the depths of different grooves G are equal. Exemplarily, the display panel includes a first groove G1, a second groove G2, and a third groove G3 arranged in sequence along the direction from the display area AA to the frame area NA. In the thickness direction of the substrate 111, the first depth H1 of the first groove G1, the second depth H2 of the second groove G2, and the third depth H3 of the third groove G3 are all equal.

[0092] In one embodiment, in the thickness direction of the substrate 111, the depths of different grooves G are different. Figure 8e As shown, the display panel includes a first groove G1, a second groove G2, and a third groove G3 which are sequentially arranged along the direction from the display area AA to the frame area NA. On the same cross section parallel to the substrate 111, the first width Y1 of the first groove G1, the second width Y2 of the second groove G2, and the third width Y3 of the third groove G3 are all equal, and the first depth H1 of the first groove G1, the second depth H2 of the second groove G2, and the third depth H3 of the third groove G3 decrease or increase sequentially.

[0093] In one embodiment, in combination Figure 8a-8f As shown, on a plane formed by a first direction X pointing from the display area AA to the frame area NA and a second direction Y perpendicular to the substrate 111 , the cross-sectional shape of the groove G includes any one of a rectangle, a regular trapezoid, an inverted trapezoid, and a semicircle.

[0094] Fig. 9 A schematic diagram of a top view of the structure of a mask plate provided in one embodiment of the present application. Fig.10 To use Fig. 9 The mask plate shown is a schematic diagram of the process of preparing the first encapsulation layer and the second encapsulation layer in the display module provided by any of the above embodiments. Fig. 9 and Fig.10As shown, the display module intermediate product 1000 includes multiple display areas, each display area has a light emitting device 122 prepared, and each display area corresponds to a display panel 10. When it is necessary to prepare the first encapsulation layer 131 or the second encapsulation layer 132 on the display module intermediate product 1000, the display module intermediate product 1000 is placed on the platform 90, and the mask plate 80 is placed on the display side of the display module intermediate product 1000. The mask plate 80 includes multiple openings K, and each opening K corresponds to a display area. Fig.10 Shows a cross-sectional structure of a display area.

[0095] The first encapsulation layer 131 and the second encapsulation layer 132 can use the same mask plate 80. By adjusting the distance D between the mask plate 80 and the display module intermediate product 1000, the thickness and length of the encapsulation material 200 entering the shadow area of ​​the mask plate 80 can be adjusted. For example, when preparing the first encapsulation layer 131, the mask plate 80 and the display module intermediate product 1000 are controlled to have a first distance. When preparing the second encapsulation layer 132, the mask plate 80 and the display module intermediate product 1000 are controlled to have a second distance. By controlling the first distance to be smaller than the second distance, the second encapsulation layer 132 can cover the first encapsulation layer 131.

[0096] Fig.11 The first embodiment of the present application provides Figure 3 A schematic diagram of the top view structure of a local area of ​​a display module is shown. Fig.11 Only shown Figure 3 The shown diagram shows part of the structure of the display module. Fig.12 for Fig.11 A partial enlarged view of the Figure 3 , Fig.11 and Fig.12 As shown, the orthographic projection of the touch line 141 on the substrate 111 overlaps with the orthographic projection of the dam 115 on the substrate 111. The touch line 141 includes a first portion S1 and a second portion S2 alternately arranged along the extension direction of the touch line 141, and the orthographic projection of at least part of the first portion S1 on the substrate 111 overlaps with the orthographic projection of the dam 115 on the substrate 111, and / or, the orthographic projection of at least part of the first portion S1 on the substrate 111 overlaps with the edge of the orthographic projection of the second encapsulation layer 132 on the substrate 111 and the edge of the orthographic projection of the first encapsulation layer 131 on the substrate 111. The line width X4 of at least part of the first portion S1 is greater than the line width X1 of the second portion S2. It should be noted that the line width X4 of the first portion S1 and the line width X1 of the second portion S2 are measured by the maximum value of their respective line widths.

[0097] By setting the line width X4 of the first part S1 to be greater than the line width X1 of the second part S2, the risk of damage to the touch line 141 can be reduced and reliability can be improved. Specifically, the inventors have found that in the process of manufacturing the display panel, the second glue layer above the dam 115 is thinner, and the protection of the touch line 141 below is insufficient, making it more susceptible to etching damage. Therefore, by increasing the line width of the touch line 141 above the dam 115, that is, the first part S1, the probability of the touch line 141 being damaged by etching can be reduced, thereby improving reliability.

[0098] In one embodiment, Fig.11 As shown, at least one dam 115 includes a plurality of dams 115, and the orthographic projection of each dam 115 on the substrate 111 overlaps with the orthographic projection of a first portion S1 on the substrate 111. That is, for each touch line 141, each dam 115 in the display panel corresponds to a first portion S1 on the touch line 141.

[0099] In one embodiment, Fig.11 As shown, the edge of the orthographic projection of the first encapsulation layer 131 on the substrate 111 and the edge of the orthographic projection of the second encapsulation layer 132 on the substrate 111 overlap with the orthographic projection of the same first portion S1 on the substrate 111. It should be noted that, Fig.11 In the embodiment, the edges of the first encapsulation layer 131 and the second encapsulation layer 132 overlap, and in an actual product, there may be a small gap between the edge of the first encapsulation layer 131 and the edge of the second encapsulation layer 132.

[0100] like Fig.12 As shown, in the width direction x of the dam 115 , the length of the first portion S1 is greater than or equal to the width of the dam 115 overlapping with the orthographic projection of the first portion S1 on the substrate 111 .

[0101] In one embodiment, at least one dam 115 includes a plurality of dams 115, and the widths of different dams 115 are equal or different. Exemplarily, the widths of the plurality of dams 115 are all equal; or, the widths of the plurality of dams 115 are different from each other.

[0102] In one embodiment, different first portions S1 have the same length in the width direction x of the dam 115. Exemplarily, the touch trace 141 includes three first portions S1, and the three first portions S1 have a first length Y7, a second length Y6, and a third length Y8, respectively, and the first length Y7, the second length Y6, and the third length Y8 are all equal.

[0103] In one embodiment, in the extension direction y of the dam 115 , the spacing X3 between the second portions S2 of adjacent touch traces 141 is greater than the line width X1 of the second portions S2 .

[0104] In this embodiment, the orthographic projection of the first portion S1 on the substrate 111 is a rhombus.

[0105] Fig.13 The second embodiment of the present application provides Figure 3 The schematic diagram of the top view of the local area of ​​the display module is shown in FIG. Fig.13 The display module and Fig.12 The difference between the display modules shown is that the shape of the first portion S1 is different. Specifically, Fig.13 The orthographic projection shape of the first portion S1 in the display module shown on the substrate 111 is an ellipse.

[0106] In other embodiments, the shape of the orthographic projection of the first portion S1 on the substrate 111 may also be a circle, a rounded rectangle, a trapezoid, a regular polygon, etc.

[0107] In one embodiment, in the display module provided by any of the above embodiments, the first portion S1 includes a through hole H, and the through hole H penetrates the touch trace 141 along the thickness direction of the substrate 111 .

[0108] For example, Fig.14 The third embodiment of the present application provides Figure 3 The schematic diagram of the top view of the local area of ​​the display module is shown in FIG. Fig.14 The top view and Fig.12 The difference between the top views shown is that Fig.14 In the display module shown, the first portion S1 includes a through hole H, and the through hole H penetrates the touch trace 141 along the thickness direction of the substrate 111 .

[0109] For example, Fig.15 The fourth embodiment of the present application provides Figure 3 The schematic diagram of the top view of the local area of ​​the display module is shown in FIG. Fig.15 The top view and Fig.13 The difference between the top views shown is that Fig.15 In the display module shown, the first portion S1 includes a through hole H, and the through hole H penetrates the touch trace 141 along the thickness direction of the substrate 111 .

[0110] Combination Fig.14 and Fig.15 As shown, the orthographic projection shape of the through hole H on the substrate 111 is a circle. It should be noted that the orthographic projection shape of the through hole H on the substrate 111 can also be any one of an ellipse, a trapezoid, a rhombus, and a regular polygon.

[0111] Combination Fig.14 and Fig.15 As shown, the number of the through hole H is one. In other embodiments, the number of the through hole H may also be multiple.

[0112] In one embodiment, the orthographic projection shape of the through hole H on the substrate 111 is the same as the orthographic projection shape of the first portion S1 on the substrate 111. For example, Fig.16 The fifth embodiment of the present application provides Figure 3 The schematic diagram of the top view of the local area of ​​the display module is shown in FIG. Fig.16 As shown, the orthographic projection shapes of the first portion S1 and the through hole H on the substrate 111 are both rhombuses. For another example, Fig.17 The sixth embodiment of the present application provides Figure 3 The schematic diagram of the top view of the local area of ​​the display module is shown in FIG. Fig.17 As shown, the orthographic projection shapes of the first portion S1 and the through hole H on the substrate 111 are both ellipses.

[0113] Fig.18 The third embodiment of the present application provides Figure 1 and Figure 2 The cross-sectional view of the first local area of ​​the display module is shown. Fig.18 The difference between the display module shown in the figure and the display module provided by any of the above embodiments is that Fig.18 In the display module shown, the edge of the orthographic projection of the polarizer 20 on the substrate 111 is located between the edge of the orthographic projection of the second encapsulation layer 132 on the substrate 111 and the orthographic projection of the insulating portion 117 on the substrate 111 close to the display area AA.

[0114] In one embodiment, the distance between the edge of the orthographic projection of the polarizer 20 on the substrate 111 and the edge of the orthographic projection of the second encapsulation layer 132 on the substrate 111 is greater than or equal to 60 microns. For example, the distance between the edge of the orthographic projection of the polarizer 20 on the substrate 111 and the edge of the orthographic projection of the second encapsulation layer 132 on the substrate 111 is 70 microns, 90 microns, 110 microns, etc.

[0115] In one embodiment, the distance between the edge of the orthographic projection of the polarizer 20 on the substrate 111 and the edge of the orthographic projection of the second encapsulation layer 132 on the substrate 111 is greater than or equal to 80 micrometers and less than or equal to 120 micrometers. For example, the distance between the edge of the orthographic projection of the polarizer 20 on the substrate 111 and the edge of the orthographic projection of the second encapsulation layer 132 on the substrate 111 is 90 micrometers, 100 micrometers, 110 micrometers, etc.

[0116] According to the display module provided in this embodiment, compared with the display module provided in any of the above embodiments, in the display module provided in this embodiment, the edge of the polarizer 20 is extended in the direction away from the display area AA, that is, on the projection plane in the thickness direction of the substrate 111, the edge of the polarizer 20 is arranged between the edge of the second encapsulation layer 132 and the edge of the insulating portion 117 close to the display area AA. In this way, the pulling of the second encapsulation layer 132 and the first encapsulation layer 131 by the shrinkage of the polarizer 20 during the reliability test can be reduced, and the risk of film separation in the frame area NA can be further reduced.

[0117] The second aspect of the present application provides another display module. Figure 3 , Fig.11 and Fig.18 The display module includes a display panel 10 and a touch line 141. The display panel 10 has a display area AA and a frame area NA that at least partially surrounds the display area AA. The display panel 10 includes a substrate 111 and at least one dam 115, the dam 115 is located on one side of the substrate 111 and is located in the frame area NA. The touch line 141 is located on the side of the dam 115 away from the substrate 111, and the orthographic projection of the touch line 141 on the substrate 111 overlaps with the orthographic projection of the dam 115 on the substrate 111. The touch line 141 includes a first portion S1 and a second portion S2 that are alternately arranged, the orthographic projection of at least part of the first portion S1 on the substrate 111 overlaps with the orthographic projection of the dam 115 on the substrate 111, and the line width X4 of at least part of the first portion S1 is greater than the line width X1 of the second portion S2. The advantage is that by setting the line width X4 of the first portion S1 to be greater than the line width X1 of the second portion S2, the risk of damage to the touch line 141 can be reduced and the reliability can be improved. Specifically, the inventors have found that during the manufacturing process of the display panel, when the touch line 141 climbs the dam 115, the second adhesive layer above the dam 115 is thinner, and the protection of the touch line 141 below is insufficient, making it more susceptible to etching damage. Therefore, by increasing the line width of the touch line 141 above the dam 115, that is, the line width of the first portion S1, the probability of the touch line 141 being damaged by etching can be reduced, thereby improving reliability.

[0118] In one embodiment, the display panel 10 further includes a first encapsulation layer 131 and a second encapsulation layer 132 located between the dam 115 and the touch wiring 141, and the second encapsulation layer 132 is located on the side of the first encapsulation layer 131 away from the substrate 111. An orthographic projection of the first portion S1 on the substrate 111 overlaps with an edge of an orthographic projection of the first encapsulation layer 131 on the substrate 111 and an edge of an orthographic projection of the second encapsulation layer 132 on the substrate 111.

[0119] In one embodiment, the display panel 10 further includes a plurality of inorganic layers 112, and the plurality of inorganic layers 112 are located between the dam 115 and the substrate 111. The plurality of inorganic layers 112 are provided with at least one groove G, and the groove G penetrates at least one inorganic layer 112 along the thickness direction of the substrate 111, and the groove G is located in the frame area NA. Exemplarily, the groove G is located on the side of the dam 115 away from the display area AA.

[0120] In one embodiment, the display panel 10 further includes a first encapsulation layer 131 and a second encapsulation layer 132 located between the dam 115 and the touch wiring 141, wherein the first encapsulation layer 131 is located on the side of the plurality of inorganic layers 112 away from the substrate 111, and fills part of the space of the groove G. The second encapsulation layer 132 is located on the side of the first encapsulation layer 132 away from the substrate 111, and part of the second encapsulation layer 132 is embedded in the space in the groove G that is not filled by the first encapsulation layer 131. The advantage is that by opening the groove G on the inorganic layer 112 of the display panel 10, and arranging the first encapsulation layer 131 and the second encapsulation layer 132 to be embedded in the groove G together, the bonding force between the inorganic layer 112, the first encapsulation layer 131, and the second encapsulation layer 132 is improved, the structural stability is enhanced, and the probability of film separation is reduced, thereby improving the yield of the display panel.

[0121] In one embodiment, the display panel 10 further includes a second encapsulation layer 132, which is located on the side of the dam 115 away from the substrate 111. The display module further includes a polarizer 20, which is located on the side of the touch wiring 141 away from the substrate 111, and the edge of the orthographic projection of the polarizer 141 on the substrate 111 is located on the side of the orthographic projection of the dam 115 on the substrate 111 away from the display area AA.

[0122] For example, see Figure 3 The edge of the orthographic projection of the polarizer 20 on the substrate 111 is located between the edge of the orthographic projection of the dam 115 on the substrate 111 and the edge of the orthographic projection of the second encapsulation layer 132 on the substrate 111 .

[0123] For example, see Fig.18The display module further includes a touch line 141, which is located on the side of the second encapsulation layer 132 away from the substrate 111. The display panel 10 further includes a conductive portion 116 and an insulating portion 117, which are sequentially stacked on at least a portion of the multiple inorganic layers 112 away from the substrate 111. The insulating portion 117 includes a first via hole, and the touch line 141 extends into the first via hole and contacts the conductive portion 116. The edge of the orthographic projection of the polarizer 20 on the substrate 111 is located between the edge of the orthographic projection of the second encapsulation layer 132 on the substrate 111 and the edge of the orthographic projection of the insulating portion 117 on the substrate 111 close to the display area. Compared with the solution in which the edge of the orthographic projection of the polarizer 20 on the substrate 111 is located between the edge of the orthographic projection of the dam 115 on the substrate 111 and the edge of the orthographic projection of the second encapsulation layer 132 on the substrate 111, in this solution, the edge of the polarizer 20 is extended in the direction away from the display area AA, that is, on the projection plane in the thickness direction of the substrate 111, the edge of the polarizer 20 is arranged between the edge of the second encapsulation layer 132 and the insulating portion 117. In this way, the pulling of the second encapsulation layer 132 and the first encapsulation layer 131 by the shrinkage of the polarizer 20 during the reliability test can be reduced, and the risk of film separation in the frame area NA can be further reduced.

[0124] Exemplarily, the distance between the edge of the orthographic projection of the polarizer 20 on the substrate 111 and the edge of the orthographic projection of the second encapsulation layer 132 on the substrate is greater than or equal to 60 micrometers.

[0125] Exemplarily, the distance between the edge of the orthographic projection of the polarizer 20 on the substrate 111 and the edge of the orthographic projection of the second encapsulation layer 132 on the substrate 111 is greater than or equal to 80 micrometers and less than or equal to 120 micrometers.

[0126] Exemplarily, the orthographic projection of the first encapsulation layer 131 on the substrate 111 is located within the orthographic projection range of the second encapsulation layer 132 on the substrate 111 .

[0127] The third aspect of the present application provides another display module. Fig.18 The display module includes: a display panel 10 and a polarizer 20. The display panel 10 has a display area AA and a frame area NA at least partially surrounding the display area AA. The display panel 10 includes a substrate 111 and a second encapsulation layer 132, and the second encapsulation layer 132 is located on one side of the substrate 111. The polarizer 20 is located on the side of the second encapsulation layer 132 away from the substrate 111, and the edge of the orthographic projection of the polarizer 132 on the substrate 111 is located on the side of the orthographic projection of the second encapsulation layer 132 on the substrate 111 away from the display area AA.

[0128] In one embodiment, the display module further includes a touch line 141, and the touch line 141 is located on the side of the second encapsulation layer 132 away from the substrate 111. The display panel 10 further includes a conductive portion 116 and an insulating portion 117, and the conductive portion 116 and the insulating portion 117 are sequentially stacked on the side of at least part of the multiple inorganic layers 112 away from the substrate 111. The insulating portion 117 includes a first via hole, and the touch line 141 extends into the first via hole and contacts the conductive portion 116. The edge of the orthographic projection of the polarizer 20 on the substrate 111 is located between the edge of the orthographic projection of the second encapsulation layer 132 on the substrate 111 and the orthographic projection of the insulating portion 117 on the substrate 111 close to the display area AA.

[0129] Exemplarily, the distance between the edge of the orthographic projection of the polarizer 20 on the substrate 111 and the edge of the orthographic projection of the second encapsulation layer 132 on the substrate 111 is greater than or equal to 60 micrometers.

[0130] Exemplarily, the distance between the edge of the orthographic projection of the polarizer 20 on the substrate 111 and the edge of the orthographic projection of the second encapsulation layer 132 on the substrate 111 is greater than or equal to 80 micrometers and less than or equal to 120 micrometers.

[0131] Exemplarily, the orthographic projection of the first encapsulation layer 131 on the substrate 111 is located within the orthographic projection range of the second encapsulation layer 132 on the substrate 111 .

[0132] In one embodiment, the display panel 10 further includes a first encapsulation layer 131 and a plurality of inorganic layers 112 located between the substrate 111 and the second encapsulation layer 132. The plurality of inorganic layers 112 and the first encapsulation layer 131 are stacked in sequence in a direction away from the substrate 111. The plurality of inorganic layers 112 are provided with at least one groove G, the groove G penetrates at least one inorganic layer 112 in the thickness direction of the substrate, and the groove G is located in the frame area NA. The first encapsulation layer 131 fills part of the space of the groove G, and part of the second encapsulation layer 132 is embedded in the space in the groove G that is not filled by the first encapsulation layer 131.

[0133] In one embodiment, in combination Fig.18 and Fig.11 As shown, the display panel 10 further includes at least one dam 115, and the dam 115 is located between the substrate 111 and the second encapsulation layer 132. The display module further includes a touch line 141, and the touch line 141 is located between the second encapsulation layer 132 and the polarizer 20. The orthographic projection of the touch line 141 on the substrate 111 overlaps with the orthographic projection of the dam 115 on the substrate 111. The touch line 141 includes a first portion S1 and a second portion S2 alternately arranged along the extension direction of the touch line 141, and the orthographic projection of at least part of the first portion S1 on the substrate 111 overlaps with the orthographic projection of the dam 115 on the substrate 111, and the line width of at least part of the first portion S1 is greater than the line width of the second portion S2.

[0134] A fourth aspect of the present application provides a display device. Fig.19 This is a schematic diagram of the structure of a display device provided in one embodiment of the present application. Fig.19 As shown, the display device includes the display module 100 provided by any of the above embodiments.

[0135] A display device is a product with an image display function. For example, a display device can be used to display static images, such as pictures or photos. A display device can also be used to display dynamic images, such as videos.

[0136] The display device can be a laptop computer, a mobile phone, a handheld or portable computer, a camera, a camcorder, a vehicle-mounted intelligent central control screen, a calculator, a smart watch, a GPS navigator, an electronic photo, an electronic billboard or sign, a projector, etc.

[0137] In addition, the display device may also have functions such as taking photos, recording videos, fingerprint recognition, and face recognition. Accordingly, the display device also includes at least one functional module for realizing the above functions, such as an under-screen camera, an under-screen fingerprint recognition sensor, and the like.

[0138] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0139] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A display module, characterized in that: A display panel is provided, wherein the display panel has a display area and a frame area at least partially surrounding the display area; the display panel comprises: substrate; A plurality of inorganic layers are stacked on one side of the substrate, the plurality of inorganic layers are provided with at least one groove, the groove penetrates at least one of the inorganic layers along the thickness direction of the substrate, and the groove is located in the border area; A first encapsulation layer is located on a side of the plurality of inorganic layers away from the substrate and fills a portion of the groove; and The second encapsulation layer is located on a side of the first encapsulation layer away from the substrate, and a portion of the second encapsulation layer is embedded in a space in the groove that is not filled by the first encapsulation layer.

2. The display module according to claim 1, characterized in that: The device further comprises at least one dam, wherein the dam is located between the plurality of inorganic layers and the first encapsulation layer and located in the border area; the orthographic projection of the groove on the substrate is located between the orthographic projection of the dam on the substrate and the edge line of the orthographic projection of the first encapsulation layer on the substrate; Preferably, the display panel further comprises a bonding area located at a side of the frame area away from the display area, and the groove is located in the frame area between the bonding area and the display area; or, the groove surrounds the display area; Preferably, at least one of the dams comprises a first dam and a second dam, wherein the first dam surrounds the display area, and the second dam surrounds the first dam; Preferably, in the thickness direction of the substrate, the height of the second dam is greater than that of the first dam; Preferably, the display panel further comprises a planarization layer, a pixel definition layer and a support layer stacked in a direction away from the substrate, the planarization layer, the pixel definition layer and the support layer are located between the plurality of inorganic layers and the first encapsulation layer, and are located in the display area; the dam comprises a plurality of stacked sub-portions, the sub-portion and one of the planarization layer, the pixel definition layer and the support layer are in the same layer and made of the same material; Preferably, the display panel further comprises a plurality of light emitting devices, the pixel definition layer encloses a plurality of pixel openings, and the light emitting devices are located within the pixel openings.

3. The display module according to claim 1, characterized in that: It also includes a touch line located on a side of the second packaging layer away from the substrate, and the orthographic projection of the touch line on the substrate overlaps with the orthographic projection of the groove on the substrate; Preferably, the display panel further comprises a conductive portion and an insulating portion sequentially stacked on a side of at least part of the plurality of inorganic layers away from the substrate, the conductive portion and the insulating portion are both located on a side of the groove away from the display area; the insulating portion comprises a first via hole, the touch control trace extends into the first via hole and contacts the conductive portion; Preferably, the display panel further comprises a protective layer, and at least a portion of the protective layer is located in the frame area; In the frame area, the protection layer is located between the insulating portion and the conductive portion, and the protection layer includes a second via hole, and the second via hole is connected to the first via hole; Preferably, the orthographic projection of the first via hole on the substrate is located within the orthographic projection range of the second via hole on the substrate; Preferably, the display panel further comprises a planarization layer, which is located on a side of the protection layer away from the substrate and located in the display area; the insulating portion and the planarization layer are in the same layer and made of the same material; Preferably, the protective layer comprises a patterned surface, and the patterned surface is in contact with the first encapsulation layer; Preferably, at least a portion of the orthographic projection of the patterned surface on the substrate surrounds the orthographic projection of the groove on the substrate; Preferably, the display module further comprises at least one dam, wherein the dam is located between the plurality of inorganic layers and the first encapsulation layer and located in the border area; at least a portion of the patterned surface is located between adjacent dams; Preferably, the plurality of inorganic layers further include at least one of an interlayer insulating layer, a capacitor inorganic layer, a gate inorganic layer, and a barrier layer stacked in sequence in a direction close to the substrate.

4. The display module according to claim 3, characterized in that: It also includes a first glue layer, which is located between the touch wiring and the second packaging layer and is located in the frame area; Preferably, the display panel further comprises at least one dam, the dam is located between the plurality of inorganic layers and the first encapsulation layer, and is located on a side of the groove close to the display area; the orthographic projection of the first glue layer on the substrate covers the orthographic projection of the dam on the substrate; Preferably, the orthographic projection of the first adhesive layer on the substrate away from the edge of the display area does not exceed the end of the orthographic projection of the touch line on the substrate away from the display area; Preferably, the display panel further comprises a third encapsulation layer, which is located between the first encapsulation layer and the second encapsulation layer and located on a side of the dam close to the display area; an orthographic projection of the first adhesive layer on the substrate partially overlaps with an orthographic projection of the third encapsulation layer on the substrate; Preferably, the display module further comprises a second adhesive layer, which is located on a side of the touch wiring away from the substrate and located in the frame area; Preferably, the display module further comprises a third adhesive layer, which is located on a side of the second adhesive layer away from the substrate and extends from the display area to the frame area; Preferably, the display module further comprises a touch metal layer, which is located between the second encapsulation layer and the third adhesive layer and is located in the display area; Preferably, the display module further comprises a polarizer, which is located on a side of the third adhesive layer away from the substrate.

5. The display module according to claim 1, characterized in that: At least one of the grooves includes a plurality of grooves, and the plurality of grooves are arranged in sequence in a direction from the display area to the frame area; Preferably, in the direction from the display area to the frame area, the widths of different grooves are equal; or, the widths of different grooves are different; Preferably, in the thickness direction of the substrate, the depths of the different grooves are equal; or, the depths of the different grooves are different; Preferably, on a plane formed by a first direction from the display area to the frame area and a second direction perpendicular to the substrate, a cross-sectional shape of the groove includes any one of a rectangle, a regular trapezoid, an inverted trapezoid, and a semicircle.

6. The display module according to claim 1, characterized in that: The display panel further includes at least one dam, which is located between the plurality of inorganic layers and the first encapsulation layer and on a side of the groove close to the display area; the display module further includes a touch wiring, which is located on a side of the second encapsulation layer away from the substrate, and an orthographic projection of the touch wiring on the substrate overlaps with an orthographic projection of the dam on the substrate; The touch trace includes a first portion and a second portion alternately arranged along an extension direction of the touch trace, and at least a portion of the orthographic projection of the first portion on the substrate overlaps with the orthographic projection of the dam on the substrate, and / or, at least a portion of the orthographic projection of the first portion on the substrate overlaps with an edge of the orthographic projection of the second packaging layer on the substrate and an edge of the orthographic projection of the first packaging layer on the substrate; the line width of at least a portion of the first portion is greater than the line width of the second portion.

7. The display module according to claim 6, characterized in that: At least one of the dams comprises a plurality of dams, and an orthographic projection of each of the dams on the substrate overlaps with an orthographic projection of the first portion on the substrate; Preferably, an edge of an orthographic projection of the first encapsulation layer on the substrate and an edge of an orthographic projection of the second encapsulation layer on the substrate overlap with an orthographic projection of the same first portion on the substrate.

8. The display module according to claim 6, characterized in that: In the width direction of the dam, the length of the first portion is greater than or equal to the width of the dam overlapping with the orthographic projection of the first portion on the substrate; Preferably, at least one of the dams comprises a plurality of dams, and the widths of different dams are equal or different; Preferably, in the width direction of the dam, the lengths of different first parts are equal; Preferably, in the extension direction of the dam, the spacing between the second parts of adjacent touch lines is greater than the line width of the second parts; Preferably, the shape of the orthographic projection of the first portion on the substrate includes any one of a circle, an ellipse, a trapezoid, a rhombus, and a regular polygon.

9. The display module according to claim 6, characterized in that: The first portion includes a through hole, and the through hole penetrates the touch control trace along the thickness direction of the substrate; Preferably, the orthographic projection shape of the through hole on the substrate is the same as the orthographic projection shape of the first portion on the substrate; Preferably, the orthographic projection shape of the through hole on the substrate includes any one of a circle, an ellipse, a trapezoid, a rhombus, and a regular polygon.

10. The display module according to claim 1, characterized in that: It also includes a polarizer, which is located on the side of the second encapsulation layer away from the substrate; the edge of the orthographic projection of the polarizer on the substrate is located on the side of the orthographic projection of the groove on the substrate away from the display area; Preferably, an edge of an orthographic projection of the polarizer on the substrate is located between an edge of an orthographic projection of the groove on the substrate and an edge of an orthographic projection of the second encapsulation layer on the substrate; or The display module further includes a touch line, which is located on a side of the second encapsulation layer away from the substrate; the display panel further includes a conductive portion and an insulating portion, which are sequentially stacked on a side of at least part of the plurality of inorganic layers away from the substrate, the insulating portion includes a first via hole, the touch line extends into the first via hole, and contacts the conductive portion; The edge of the orthographic projection of the polarizer on the substrate is located between the orthographic projection of the second encapsulation layer on the substrate and the edge of the orthographic projection of the insulating part on the substrate close to the display area; Preferably, the distance between the edge of the orthographic projection of the polarizer on the substrate and the edge of the orthographic projection of the second encapsulation layer on the substrate is greater than or equal to 60 microns; Preferably, a distance between an edge of an orthographic projection of the polarizer on the substrate and an edge of an orthographic projection of the second encapsulation layer on the substrate is greater than or equal to 80 micrometers and less than or equal to 120 micrometers.

11. The display module according to claim 1, characterized in that: The orthographic projection of the first encapsulation layer on the substrate is located within the range of the orthographic projection of the second encapsulation layer on the substrate.

12. A display module, characterized in that: include: A display panel having a display area and a frame area at least partially surrounding the display area; The display panel includes a substrate and at least one dam, wherein the dam is located on one side of the substrate and in the frame area; and A touch line is located on a side of the dam away from the substrate, and an orthographic projection of the touch line on the substrate overlaps with an orthographic projection of the dam on the substrate; The touch line includes a first portion and a second portion that are alternately arranged, at least a portion of the first portion has an orthographic projection on the substrate overlapped with an orthographic projection of the dam on the substrate, and at least a portion of the first portion has a line width greater than a line width of the second portion.

13. The display module according to claim 12, characterized in that: The display panel also includes a first encapsulation layer and a second encapsulation layer located between the dam and the touch line, the second encapsulation layer being located on a side of the first encapsulation layer away from the substrate; an orthographic projection of the first portion on the substrate overlaps with an edge of an orthographic projection of the first encapsulation layer on the substrate and an edge of an orthographic projection of the second encapsulation layer on the substrate.

14. The display module according to claim 12, characterized in that: The display panel further comprises a plurality of inorganic layers, wherein the plurality of inorganic layers are located between the dam and the substrate; the plurality of inorganic layers are provided with at least one groove, wherein the groove penetrates at least one of the inorganic layers along the thickness direction of the substrate, and the groove is located in the frame area; Preferably, the groove is located on a side of the dam away from the display area; Preferably, the display panel further comprises a first encapsulation layer and a second encapsulation layer located between the dam and the touch wiring, wherein the first encapsulation layer is located on a side of the plurality of inorganic layers away from the substrate and fills a portion of the space of the groove; The second encapsulation layer is located on a side of the first encapsulation layer away from the substrate, and a portion of the second encapsulation layer is embedded in a space in the groove that is not filled by the first encapsulation layer.

15. The display module according to claim 12, characterized in that: The display panel further includes a second encapsulation layer located on a side of the dam away from the substrate; the display module further includes a polarizer located on a side of the touch line away from the substrate; an edge of the orthographic projection of the polarizer on the substrate is located on a side of the orthographic projection of the dam on the substrate away from the display area; Preferably, an edge of the orthographic projection of the polarizer on the substrate is located between an edge of the orthographic projection of the dam on the substrate and an edge of the orthographic projection of the second encapsulation layer on the substrate; or The display module further includes a touch line and a plurality of inorganic layers, the plurality of inorganic layers are located between the dam and the substrate, and the touch line is located on a side of the second encapsulation layer away from the substrate; the display panel further includes a conductive portion and an insulating portion, the conductive portion and the insulating portion are sequentially stacked on a side of at least part of the inorganic layer away from the substrate, the insulating portion includes a first via hole, the touch line extends into the first via hole, and contacts the conductive portion; The edge of the orthographic projection of the polarizer on the substrate is located between the orthographic projection of the second encapsulation layer on the substrate and the edge of the orthographic projection of the insulating part on the substrate close to the display area; Preferably, the distance between the edge of the orthographic projection of the polarizer on the substrate and the edge of the orthographic projection of the second encapsulation layer on the substrate is greater than or equal to 60 microns; Preferably, a distance between an edge of an orthographic projection of the polarizer on the substrate and an edge of an orthographic projection of the second encapsulation layer on the substrate is greater than or equal to 80 micrometers and less than or equal to 120 micrometers.

16. A display module, characterized in that: include: A display panel having a display area and a frame area at least partially surrounding the display area; The display panel comprises a substrate and a second encapsulation layer, wherein the second encapsulation layer is located on one side of the substrate; and The polarizer is located on the side of the second encapsulation layer away from the substrate, and the edge of the orthographic projection of the polarizer on the substrate is located on the side of the edge of the orthographic projection of the second encapsulation layer on the substrate away from the display area.

17. The display module according to claim 16, characterized in that: The display panel further includes a touch line and a plurality of inorganic layers, wherein the plurality of inorganic layers are located between the second encapsulation layer and the substrate, and the touch line is located on a side of the second encapsulation layer away from the substrate; the display panel further includes a conductive portion and an insulating portion, wherein the conductive portion and the insulating portion are sequentially stacked on a side of at least a portion of the inorganic layer away from the substrate, the insulating portion includes a first via hole, and the touch line extends into the first via hole and contacts the conductive portion; The edge of the orthographic projection of the polarizer on the substrate is located between the orthographic projection of the second encapsulation layer on the substrate and the edge of the orthographic projection of the insulating part on the substrate close to the display area; Preferably, the distance between the edge of the orthographic projection of the polarizer on the substrate and the edge of the orthographic projection of the second encapsulation layer on the substrate is greater than or equal to 60 microns; Preferably, the distance between the edge of the orthographic projection of the polarizer on the substrate and the edge of the orthographic projection of the second encapsulation layer on the substrate is greater than or equal to 80 microns and less than or equal to 120 microns; Preferably, the display module further comprises a first encapsulation layer located between the second encapsulation layer and the substrate; an orthographic projection of the first encapsulation layer on the substrate is located within a range of an orthographic projection of the second encapsulation layer on the substrate.

18. The display module according to claim 16, characterized in that: The display panel also includes a first encapsulation layer and multiple inorganic layers located between the substrate and the second encapsulation layer, and the multiple inorganic layers and the first encapsulation layer are stacked in sequence along the direction away from the substrate; the multiple inorganic layers are provided with at least one groove, and the groove penetrates at least one of the inorganic layers along the thickness direction of the substrate, and the groove is located in the border area; the first encapsulation layer fills part of the space in the groove, and part of the second encapsulation layer is embedded in the space in the groove that is not filled by the first encapsulation layer.

19. The display module according to claim 16, characterized in that: The display panel further includes at least one dam, and the dam is located between the substrate and the second encapsulation layer; the display module further includes a touch line, and the touch line is located between the second encapsulation layer and the polarizer, and the orthographic projection of the touch line on the substrate overlaps with the orthographic projection of the dam on the substrate; The touch line includes a first portion and a second portion alternately arranged along an extension direction of the touch line, at least part of the first portion has an orthographic projection on the substrate overlapped with the orthographic projection of the dam on the substrate, and at least part of the first portion has a line width greater than a line width of the second portion.

20. A display device, characterized in that: A display module comprising any one of claims 1-19.

Images