Display panel and display device

Abstract

The invention provides a display panel and a display device, and belongs to the technical field of display, the display panel comprises an opening area, a display area at least partially surrounding the opening area, and a transition area located between the opening area and the display area; the display panel comprises a substrate in an opening area; the first packaging layer is arranged on one side of the substrate; the second packaging layer is arranged on the side, away from the substrate, of the first packaging layer; the first partition areas are annularly distributed in the opening area; the at least one hole is formed in the hole area; wherein the first packaging layer is disconnected in the first partition area, the second packaging layer is continuous in the first partition area, and the orthographic projection of at least one hole on the substrate is located in an area defined by the boundary line, closest to the transition area, of the first partition area. According to the display panel and the display device, the situation that water vapor or foreign matter enters the display panel from the edge of the opening can be reduced, the service life of the display panel is prolonged, and the reliability of the display panel is improved.

Description

Technical Field

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

[0002] At present, bendable displays can be realized through liquid crystal display (LCD) and organic light-emitting diode (OLED) display panels. Among them, benefiting from the characteristics of self-luminescence, OLED displays prepared on flexible substrates are more likely to achieve bendable displays with smaller bending radius. Therefore, the production of OLED display panels containing flexible substrates has attracted widespread attention.

[0003] In recent years, the overall display area of ​​flexible OLED display devices and terminal products has become larger and larger, including the emergence of in-screen openings, grooves, panel bending and other designs to expand the display area. For example, the in-screen opening area can be used to place external components such as sensors and cameras, thereby reducing the space occupied by these components and increasing the display area of ​​the display device.

[0004] However, due to the complexity of the process of opening holes in the screen, water vapor or foreign matter often enters the display device from the edge of the hole, causing the device to fail and affecting the service life and reliability of the display product. Summary of the invention

[0005] The present application provides a display panel and a display device, aiming to reduce the situation where water vapor or foreign matter enters the interior of the display panel from the edge of the opening, thereby improving the service life and reliability of the display panel.

[0006] A first aspect of an embodiment of the present application provides a display panel, including:

[0007] An opening area, a display area at least partially surrounding the opening area, and a transition area between the opening area and the display area;

[0008] The display panel comprises in the opening area:

[0009] substrate;

[0010] A first encapsulation layer is disposed on one side of the substrate;

[0011] A second encapsulation layer is disposed on a side of the first encapsulation layer away from the substrate;

[0012] A first partition area is distributed in the opening area in an annular shape;

[0013] at least one opening disposed in the opening area;

[0014] The first encapsulation layer is disconnected in the first partition area, the second encapsulation layer is continuous in the first partition area, and the orthographic projection of the at least one opening on the substrate is located in an area enclosed by a boundary line of the first partition area closest to the transition zone.

[0015] Optionally, the display panel further comprises a plurality of isolation columns in the transition area, the isolation columns are arranged around the opening area, and the isolation column closest to the opening area among the plurality of isolation columns is an outer isolation column;

[0016] The first partition area is located on a side of the outer spacer column away from the display area.

[0017] Optionally, a distance between the first partition region and the outer isolation column is greater than or equal to 2.0 μm.

[0018] Optionally, an orthographic projection of an edge of the opening on the substrate coincides with an edge of the first partition area.

[0019] Optionally, an orthographic projection of an edge of the opening on the substrate is located within an area enclosed by the first partition area.

[0020] Optionally, the first encapsulation layer forms a first climbing section on at least one side of the first partition area;

[0021] The second encapsulation layer forms a second climbing section on at least one side of the first partition area.

[0022] Optionally, a plurality of the first partition regions are provided, and the plurality of the first partition regions are distributed in concentric circles, the first encapsulation layer is disconnected in each of the first partition regions, and the second encapsulation layer is continuous in each of the first partition regions.

[0023] Optionally, the first encapsulation layer forms a first climbing section on at least one side of each of the first partition regions;

[0024] The second packaging layer forms a second climbing section on at least one side of each of the first partition regions.

[0025] Optionally, two first partition areas are provided;

[0026] The two first partition regions include a first sub-region and a second sub-region, and the second sub-region is located within the first sub-region;

[0027] The orthographic projection of the edge of the opening on the substrate coincides with the edge of the second sub-region.

[0028] Optionally, the display panel further includes a second partition area in the transition area;

[0029] The orthographic projection of the second partition area on the substrate is located within the area enclosed by the first partition area;

[0030] The first encapsulation layer is continuous in the second isolation region, and the second encapsulation layer is disconnected in the second isolation region.

[0031] Optionally, an orthographic projection of an edge of the opening on the substrate coincides with an edge of the second partition area.

[0032] Optionally, the second encapsulation layer forms a third climbing section on at least one side of the second partition area.

[0033] Optionally, the display panel includes in the display area:

[0034] substrate;

[0035] The third encapsulation layer is arranged between the first encapsulation layer and the second encapsulation layer.

[0036] Optionally, the display panel further includes in the display area:

[0037] A driving circuit layer is arranged on one side of the substrate;

[0038] A light-emitting layer is arranged on a side of the driving circuit layer away from the substrate;

[0039] The first encapsulation layer, the third encapsulation layer and the second encapsulation layer are sequentially arranged on a side of the light-emitting layer away from the substrate.

[0040] A second aspect of the embodiments of the present application provides a display device, comprising the display panel provided in the first aspect of the embodiments of the present application.

[0041] Beneficial effects:

[0042] The present application provides a display panel and a display device, wherein the display panel includes a substrate, a first encapsulation layer, a second encapsulation layer and at least one opening in an opening area, wherein the display panel also includes a virtual first partition area, and the first encapsulation layer is disconnected in the first partition area, the second encapsulation layer is continuous in the first partition area, and the orthographic projection of at least one opening on the substrate is located in an area enclosed by a boundary line of the first partition area closest to a transition area; in this way, since the first encapsulation layer is disconnected in the first partition area, edge peeling occurring at the position of the first encapsulation layer can be prevented from extending into the interior of the display panel, thereby preventing water vapor or foreign matter from invading the interior of the display panel, thereby improving the service life and reliability of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0044] Figure 1 is a schematic diagram of a planar structure of a display panel proposed in an embodiment of the present application;

[0045] Figure 2 is a schematic structural diagram of an opening area and a transition area in a display panel proposed in an embodiment of the present application;

[0046] Figure 3 yes Figure 2 Schematic diagram of the structure of the MM' section;

[0047] Figure 4 is a schematic diagram of a planar structure of an opening area in a display panel proposed in an embodiment of the present application;

[0048] Figure 5 is a schematic diagram of a cross-sectional structure of an opening area in a display panel proposed in an embodiment of the present application;

[0049] Figure 6 This is a schematic diagram of a structure in which an edge of an opening coincides with an edge of a first partition area, as proposed in an embodiment of the present application;

[0050] Figure 7 This is a schematic diagram of the structure of an opening edge in an area surrounded by a first partition area proposed in an embodiment of the present application;

[0051] Figure 8 is a schematic structural diagram of a display panel including a plurality of first partition areas proposed in an embodiment of the present application;

[0052] Fig. 9 is a schematic structural diagram of a display panel provided in an embodiment of the present application, including a first sub-region and a second sub-region, wherein an edge of an opening coincides with an edge of the second sub-region;

[0053] Fig.10 is a schematic structural diagram of a display panel including a first partition area and a second partition area proposed in an embodiment of the present application;

[0054] Fig.11 It is a schematic structural diagram of a display panel provided in an embodiment of the present application, including a first partition area and a second partition area, wherein an edge of an opening coincides with an edge of the second partition area;

[0055] Fig.12It is a schematic diagram of the structure of a display area of ​​a display surface proposed in one embodiment of the present application.

[0056] Description of reference numerals: 10, substrate; 11, buffer layer; 20, active layer; 21, first gate insulating layer; 22, gate; 23, second gate insulating layer; 24, interlayer dielectric layer; 25, source; 26, drain; 27, first electrode; 28, second electrode; 29, planarization layer; 30, light-emitting layer; 31, first pixel electrode; 32, light-emitting portion; 33, second pixel electrode; 34, pixel defining portion; 40, packaging structure; 41, first packaging layer; 41 1. First climbing section; 42. Second packaging layer; 421. Second climbing section; 422. Third climbing section; 43. Third packaging layer; 50. Isolation column; 51. Isolation dam; 60. Device layer; 70. Opening; 80. Filling layer; AA, display area; GD, transition area; KK, opening area; GD1, first partition area; GD11, first sub-area; GD12, second sub-area; GD2, second partition area; BK, border area; XH, signal connection area. DETAILED DESCRIPTION

[0057] 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 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.

[0058] In the related art, since the display device with a hole in the screen has an open boundary in the display area, after the laser cutting hole process, the packaging layer and the edge of the device layer in the display device are in contact with the outside world. The packaging layer usually includes two inorganic packaging layers and one organic packaging layer, and the two inorganic packaging layers will cover the position of the opening area. However, since the interface bonding force between the first inorganic packaging layer and the device layer in the packaging layer is poor, and the barrier capacity of the first inorganic packaging layer is lower than that of the second inorganic packaging layer, water vapor will enter along the interface between the first inorganic packaging layer and the device layer, and the first inorganic packaging layer, causing edge peeling (referring to the phenomenon of separation or falling off between the surface or internal layers of the panel), and as time goes on, it enters the display area and causes device failure.

[0059] In view of this, an embodiment of the present application proposes a display panel and a display device, wherein the display panel includes a substrate, a first encapsulation layer, a second encapsulation layer and at least one opening in an opening area, wherein the display panel also includes a virtual first partition area, and the first encapsulation layer is disconnected in the first partition area, the second encapsulation layer is continuous in the first partition area, and the orthographic projection of at least one opening on the substrate is located in the area enclosed by the boundary line of the first partition area closest to the transition area; in this way, since the first encapsulation layer is disconnected in the first partition area, edge peeling at the position of the first encapsulation layer can be prevented from extending to the inside of the display panel, thereby preventing water vapor or foreign matter from invading the inside of the display panel, thereby improving the service life and reliability of the display panel.

[0060] Reference Figure 1 As shown, a display panel disclosed in an embodiment of the present application has an overall structure located on a substrate 10 , on which the display panel can be roughly divided into a display area AA, a frame area BK and a signal connection area XH.

[0061] Specifically, the substrate 10 may be a flexible substrate or a rigid substrate. When the substrate 10 is a flexible substrate, the display panel may have properties such as being bendable or foldable; when the substrate 10 is a rigid substrate, the rigidity requirements of the display panel may be met; the performance of the specific substrate 10 is determined according to the actual requirements of the product.

[0062] In addition, the substrate 10 may include a single-layer structure or a multi-layer structure. Exemplarily, the substrate 10 may include a polyimide layer and a buffer layer 11 stacked in sequence; in other embodiments, the substrate 10 may also include a plurality of polyimide layers and a buffer layer 11 stacked in sequence. Among them, the buffer layer 11 may be made of materials such as silicon nitride or silicon oxide to achieve the effect of blocking water oxygen and blocking alkaline ions. It should be noted that the structure of the substrate 10 is not limited to this, and in specific applications, it can be determined according to actual needs.

[0063] Reference Figure 1 and Figure 2 As shown, there is an opening area KK in the display area AA of the display panel, that is, in the display panel, the display area AA is at least partially arranged around the opening area KK. Exemplarily, the opening area KK can be completely located within the range where the display area AA is located, and in this case, the opening area KK is surrounded by the display area AA; the opening area KK can also be partially located within the range where the display area AA is located, and in this case, the display area AA partially surrounds the opening area KK. There is a transition area GD between the display area AA and the opening area KK.

[0064] Among them, refer to Figure 3 and Figure 5As shown, the display panel includes a substrate 10, a device layer 60, a first encapsulation layer 41, a second encapsulation layer 42 and at least one opening 70 in the opening area KK.

[0065] Specifically, the first encapsulation layer 41 and the second encapsulation layer 42 are an encapsulation structure 40 of a display panel. In the embodiment of the present application, the encapsulation structure 40 further includes a third encapsulation layer 43. Fig.12 As shown, in the display area AA, the first encapsulation layer 41, the third encapsulation layer 43 and the second encapsulation layer 42 are sequentially arranged on the device layer 60. That is to say, the first encapsulation layer 41 and the second encapsulation layer 42 extend from the display area AA to the opening area KK, and substantially completely cover the opening area KK. Among them, in order to compensate for the refractive index requirements, the first encapsulation layer 41 is usually made of silicon nitride or silicon oxide material, the second encapsulation layer 42 is made of silicon nitride material or silicon oxide or aluminum oxide film formed by atomic layer deposition process, and the third encapsulation layer 43 is usually made of organic materials, such as acrylic polymers, silicon polymers and other materials. The first encapsulation layer 41 and the second encapsulation layer 42 can be formed by two chemical vapor depositions respectively, or by physical vapor deposition process, and the third encapsulation layer 43 can be formed by inkjet printing process, spraying process, screen printing process or thermal deposition process. The encapsulation structure 40 can encapsulate the circuit components of the entire display panel, protect the circuit components from erosion by water vapor and oxygen, and thus form structural protection for the entire display panel.

[0066] In addition, the encapsulation structure 40 of the display panel may further include multiple encapsulation layers, and in the multiple encapsulation layers, the organic encapsulation layers and the inorganic encapsulation layers are distributed at intervals.

[0067] Reference Figure 4 As shown, the opening 70 is formed in the opening area KK, the number of the opening 70 may be one or two, the shape of the opening 70 may include a circle, an ellipse or a strip, and the opening 70 may be formed by a laser cutting process. It should be noted that, in the embodiment of the present application, before forming the opening 70, a filling layer 80 (see FIG. 1 ) is applied to the opening area KK and the transition area GD. Figure 3 and Figure 6 As shown in the figure, fill and stress buffer are performed, and then the hole opening process is carried out.

[0068] After the laser cutting process, water and oxygen may intrude at the edge of the opening 70 due to poor interface bonding between the first encapsulation layer 41 and the device layer 60 and lower barrier capability of the first encapsulation layer 41 than that of the second encapsulation layer 42 .

[0069] For this purpose, refer to Figure 4As shown, in the embodiment of the present application, the display panel further includes a first partition area GD1 in the opening area KK, and the first partition area GD1 is distributed in the opening area KK in a ring shape. It should be noted that the first partition area GD1 is a virtual area in the opening area KK, which does not exist in the actual product and is only a region divided for the convenience of device manufacturing.

[0070] Reference Figure 5 As shown, in the embodiment of the present application, the first encapsulation layer 41 is disconnected in the first partition area GD1, and the second encapsulation layer 42 is continuous in the first partition area GD1. That is to say, the first encapsulation layer 41 is not formed in the first partition area GD1, but the first encapsulation layer 41 is formed in the area surrounded by the first partition area GD1, and the second encapsulation layer 42 is formed in the first partition area GD1, and the second encapsulation layer 42 is continuously covered. In the actual process, after the first encapsulation layer 41 is formed, the first encapsulation layer 41 in the first partition area GD1 can be etched to achieve the disconnection of the first encapsulation layer 41.

[0071] At the same time, refer to Figure 4 As shown, in the embodiment of the present application, the orthographic projection of at least one opening 70 on the substrate 10 is located in the area surrounded by the boundary line of the first partition area GD1 closest to the transition area GD. The first partition area GD1 includes at least two boundary lines, namely, an outer boundary line and an inner boundary line, the outer boundary line is the boundary line close to the transition area GD, and the inner boundary line is located inside the outer boundary line. The orthographic projection of the opening 70 on the substrate 10 is located in the area surrounded by the outer boundary line in the first partition area GD1, that is, the opening 70 is opened in the area surrounded by the outer boundary line in the first partition area GD1.

[0072] In this way, since the first encapsulation layer 41 is disconnected in the first partition area GD1, even if the first encapsulation layer 41 at the edge of the opening 70 has an edge peeling problem caused by water vapor intrusion, the peeling cannot continue to expand to the inside of the display panel through the first encapsulation layer 41, thereby making the opening 70 of the display panel better able to resist water vapor intrusion, thereby improving the service life and reliability of the display panel.

[0073] It is understandable that the size of the first partition area GD1 (that is, the distance between the outer boundary line and the inner boundary line) can be set according to actual needs. In the embodiment of the present application, the size of the first partition area GD1 is greater than or equal to 3μm and less than or equal to 10μm. Exemplarily, the size of the first partition area GD1 can be 3μm, 4μm, 5μm, 6μm, 8μm, 10μm, etc.

[0074] The relationship between the position of the edge of the opening 70 and the first partition area GD1 can be set according to actual needs.

[0075] For example, refer to Figure 6 As shown, in one embodiment, the orthographic projection of the edge of the opening 70 on the substrate 10 coincides with the edge of the first partition area GD1. The edge of the opening 70 is also the interface position where the first encapsulation layer 41 or the second encapsulation layer 42 is exposed, and the orthographic projection of the edge on the substrate 10 can enclose a plane figure of the opening 70. Exemplarily, when the opening 70 is a circular hole, the orthographic projection of the edge on the substrate 10 will enclose a circle. The first partition area GD1 is also the annular area enclosed by the outer boundary line and the inner boundary line. The edge of the first partition area GD1 is also the position where the inner boundary line is located.

[0076] The orthographic projection of the edge of the opening 70 coincides with the edge of the first partition region GD1, and the first encapsulation layer 41 is disconnected in the first partition region GD1, so that only the interface of the second encapsulation layer 42 is finally exposed. In this embodiment, since the second encapsulation layer 42 covers the edge of the first encapsulation layer 41, and the second encapsulation layer 42 has a good barrier ability and is not prone to oxidative hydrolysis, no peeling phenomenon will occur at the edge of the opening 70, thereby ensuring the effect of preventing water vapor intrusion at the opening position of the display panel and improving the reliability of the display panel.

[0077] For example, refer to Figure 7 As shown, in one embodiment, the orthographic projection of the edge of the opening 70 on the substrate 10 is located within the area enclosed by the first partition area GD1. The area enclosed by the first partition area GD1 refers to the area enclosed by the inner boundary line in the first partition area GD1, in which the first encapsulation layer 41 and the second encapsulation layer 42 are formed. Therefore, after the opening is made, the first encapsulation layer 41 and the second encapsulation layer 42 will be exposed. However, since the first encapsulation layer 41 is disconnected in the first partition area GD1, even if the exposed part of the first encapsulation layer 41 is peeled off, the peeling cannot continue to extend along the first encapsulation layer 41 to the inside of the display panel, thereby ensuring the effect of preventing water vapor intrusion at the opening position of the display panel and improving the reliability of the display panel.

[0078] In an optional embodiment, referring to Figure 3 and Fig.12 As shown, an embodiment of the present application further provides a display panel, in which the display panel includes a plurality of isolation columns 50 in the transition region GD.

[0079] Specifically, a plurality of isolation columns 50 are arranged around the opening area KK, that is, the isolation columns 50 are a structure of circles around the opening. In actual products, the isolation columns 50 are divided into inner isolation columns 50 and outer isolation columns 50, and there are a plurality of anti-crack dams 51 between the inner isolation columns 50 and the outer isolation columns 50. These isolation columns 50 and anti-crack dams 51 can be used to prevent water vapor from invading the interior of the display panel. The isolation columns 50 and the anti-crack dams 51 can be formed when preparing the relevant devices (such as metal layers) of the display area AA, and a step of wet etching is added to the isolation columns 50 to form the side inscribed structure of the isolation columns 50. Of course, the preparation of the isolation columns 50 can also use other process methods to form an undercut structure, such as an inverted trapezoidal isolation column 50, using a negative photoresist to form an undercut structure, or a combination of an organic layer and an inorganic layer to form an undercut structure.

[0080] In the embodiment of the present application, the outer isolation column is the isolation column 50 closest to the opening area KK among the plurality of isolation columns 50. Figure 3 and Figure 5 As shown, the first partition region GD1 is located on a side of the outer spacer column away from the display area AA.

[0081] That is to say, the first encapsulation layer 41 needs to extend from the display area AA to the opening area KK, and cover all the isolation columns 50 in the transition area GD, so as to ensure the leveling of the first encapsulation layer 41, so as to facilitate the formation of the third encapsulation layer 43. At the same time, the first partition area GD1 cannot be set to the position where the isolation column 50 is located, because in terms of technology, the first encapsulation layer 41 is not easy to be disconnected at the position of the isolation column 50, and if the first encapsulation layer 41 is forcibly disconnected at the position of the isolation column 50, there will be a risk of exposing the device layer 60.

[0082] In addition, in the embodiment of the present application, the distance between the first partition region GD1 and the outer isolation column 50 is greater than or equal to 2.0 μm. Exemplarily, the distance between the first partition region GD1 and the outer isolation column 50 can be 2.0 μm, 2.2 μm, 2.5 μm, 2.8 μm, 3.0 μm, etc. The purpose of this setting is to make the continuous size of the first encapsulation layer 41 and the second encapsulation layer 42 on the side of the outer isolation column away from the display area AA greater than or equal to 2.0 μm, so as to avoid damage to the first encapsulation layer 41 and the second encapsulation layer 42 on the side wall of the isolation column 50 during subsequent etching.

[0083] And, refer to Figure 5As shown, in the embodiment of the present application, the first encapsulation layer 41 is formed with a first climbing section 411 on at least one side of the first partition area GD1, and the second encapsulation layer 42 is formed with a second climbing section 421 on at least one side of the first partition area GD1. The provision of the first climbing section 411 and the second climbing section 421 can prevent the second encapsulation layer 42 from being broken at the position of the first partition area GD1, thereby better improving the effect of preventing water vapor intrusion of the display panel.

[0084] In an optional embodiment, referring to Figure 8 As shown, an embodiment of the present application further provides a display panel, in which a plurality of first partition areas GD1 are provided, the plurality of first partition areas GD1 are distributed in concentric circles, and the first encapsulation layer 41 is disconnected in each first partition area GD1, and the second encapsulation layer 42 is continuous in each first partition area GD1.

[0085] Specifically, refer to Figure 8 As shown, in this embodiment, each first partition region GD1 includes an outer boundary line and an inner boundary line, and in two adjacent first partition regions GD1, the inner boundary line of the first partition region GD1 located on the outer side is adjacent to the outer boundary line of the first partition region GD1 located on the inner side, and the first encapsulation layer 41 is not formed in each first partition region GD1, and the second encapsulation layer 42 covers each first partition region GD1. At this time, the orthographic projection of the opening in the opening region KK on the substrate 10 is located in the area enclosed by the outer boundary line of the outermost first partition region GD1 (i.e., the first partition region GD1 closest to the transition region GD), and the edge of the opening can be located at any position in the area.

[0086] For example, in one embodiment, two first partition regions GD1 are provided, and the two first partition regions GD1 are respectively a first sub-region GD11 and a second sub-region GD12, and the second sub-region GD12 is located in the first sub-region GD12. In this embodiment, the orthographic projection of the edge of the opening 70 on the substrate 10 coincides with the edge of the first sub-region GD11 (coincides with the edge of the first sub-region GD12). Figure 6 In this case, the exposed portion of the edge of the opening 70 only includes the second encapsulation layer 42 and the device layer 60, and the first encapsulation layer 41 is isolated in the first sub-region GD11, thereby preventing water vapor from intruding into the interior of the display panel.

[0087] For example, in one embodiment, two first partition regions GD1 are provided, and the two first partition regions GD1 are respectively a first sub-region GD11 and a second sub-region GD12, and the second sub-region GD12 is located in the first sub-region GD11. In this embodiment, the orthographic projection of the edge of the opening 70 on the substrate 10 is located between the first sub-region GD11 and the second sub-region GD12 (with the first sub-region GD11 and the second sub-region GD12). Figure 7 At this time, the exposed portion of the edge of the opening 70 includes the first encapsulation layer 41, the second encapsulation layer 42 and the device layer 60, but the first encapsulation layer 41 is isolated in the first sub-region GD11, thereby preventing water vapor from intruding into the interior of the display panel.

[0088] For example, refer to Fig. 9 As shown, in one embodiment, two first partition regions GD1 are provided, and the two first partition regions GD1 are respectively the first sub-region GD11 and the second sub-region GD12, and the second sub-region GD12 is located in the first sub-region GD11. In this embodiment, the orthographic projection of the edge of the opening 70 on the substrate 10 coincides with the edge of the second sub-region GD12. At this time, the exposed portion of the edge of the opening 70 only includes the second encapsulation layer 42 and the device layer 60, and the first encapsulation layer 41 is isolated in both the second sub-region GD12 and the first sub-region GD11, so that water vapor can be better prevented from intruding into the interior of the display panel.

[0089] In addition, refer to Figure 8 As shown, in this embodiment, the first encapsulation layer 41 is formed with a first climbing section 411 on at least one side of each first partition area GD1, and the second encapsulation layer 42 is formed with a second climbing section 421 on at least one side of each first partition area GD1. The provision of the first climbing section 411 and the second climbing section 421 can prevent the second encapsulation layer 42 from being broken at the position of the first partition area GD1, thereby better improving the effect of preventing water vapor intrusion of the display panel.

[0090] In an optional embodiment, referring to Fig.10 As shown, the embodiment of the present application further provides a display panel, in which the display panel further includes a virtual second partition area GD2 in the transition area GD domain.

[0091] Specifically, the orthographic projection of the second partition area GD2 on the substrate 10 is located in the area enclosed by the first partition area GD1. It should be noted that the second partition area GD2 is located in the area enclosed by the inner boundary line of the first partition area GD1, that is, the second partition area GD2 is completely located in the first partition area GD1, and there is no overlapping part between the first partition area GD1 and the second partition area GD2.

[0092] In the embodiment of the present application, the size of the second partition region GD2 is greater than or equal to 3 μm and less than or equal to 10 μm. For example, the size of the second partition region GD2 may be 3 μm, 4 μm, 5 μm, 6 μm, 8 μm, 10 μm, etc.

[0093] At the same time, in the embodiment of the present application, the first encapsulation layer 41 is continuous in the second partition area GD2, the second encapsulation layer 42 is disconnected in the second partition area GD2, the orthographic projection of the opening 70 on the substrate 10 is located in the area enclosed by the outer boundary line of the first partition area GD1, and the edge position of the opening can be set according to actual needs.

[0094] For example, in one embodiment, the orthographic projection of the edge of the opening 70 on the substrate 10 coincides with the edge of the first partition region GD1 (coincides with Figure 6 ), at this time, only the second encapsulation layer 42 and the device layer 60 are exposed at the edge of the opening 70. Since the second encapsulation layer 42 has good barrier ability and is not prone to oxidative hydrolysis reaction, the intrusion of water and oxygen into the display panel can be reduced.

[0095] For example, in one embodiment, the orthographic projection of the edge of the opening on the substrate 10 is located between the first partition area GD1 and the second partition area GD2 (with Figure 7 ), at this time, the first encapsulation layer 41, the second encapsulation layer 42 and the device layer 60 are exposed at the edge of the opening 70, but because the first encapsulation layer 41 is disconnected in the first partition area GD1, it is impossible to continue to expand into the interior of the display panel through the first encapsulation layer 41, so that the opening position of the display panel has better ability to prevent water vapor intrusion, thereby improving the service life and reliability of the display panel.

[0096] For example, refer to Fig.11 As shown, in one embodiment, the orthographic projection of the edge of the opening 70 on the substrate 10 coincides with the edge of the second partition area GD2. At this time, the first packaging layer 41 and the device layer 60 are exposed at the edge of the opening 70. However, since the first packaging layer 41 is disconnected in the first partition area GD1, it is impossible to continue to expand into the interior of the display panel through the first packaging layer 41, thereby making the opening position of the display panel better able to prevent water vapor intrusion.

[0097] In addition, refer to Fig.10 As shown, in the embodiment of the present application, the second encapsulation layer 42 is formed with a third climbing section 422 on at least one side of the second partition region GD2.

[0098] Reference Fig.12 As shown, in the embodiment of the present application, the display panel includes a driving circuit layer, a light emitting layer 30 and a packaging structure 40 which are sequentially stacked on a substrate 10 in the display area AA.

[0099] Specifically, the driving circuit layer may include a plurality of thin film transistors and a capacitor structure.

[0100] like Fig.12As shown, the thin film transistor may be a top gate type, and the thin film transistor may include an active layer 20, a first gate insulating layer 21, a gate electrode 22, a second gate insulating layer 23, an interlayer dielectric layer 24, a source electrode 25, and a drain electrode 26. Specifically, the active layer 20 may be formed on the buffer layer 11, the first gate insulating layer 21 covers the buffer layer 11 and the active layer 20, the gate electrode 22 is formed on the side of the first gate insulating layer 21 away from the active layer 20, the second gate insulating layer 23 covers the gate electrode 22 and the first gate insulating layer 21, the interlayer dielectric layer 24 covers the second gate insulating layer 23, the source electrode 25 and the drain electrode 26 are formed on the side of the interlayer dielectric layer 24 away from the substrate 10 and are respectively located on the opposite sides of the gate electrode 22, and the source electrode 25 and the drain electrode 26 may be in contact with the opposite sides of the active layer 20 through vias (e.g., metal vias), respectively. It should be understood that the thin film transistor may also be a bottom gate type.

[0101] like Fig.12 As shown, the capacitor structure may include a first electrode plate 27 and a second electrode plate 28 . The first electrode plate 27 is disposed in the same layer as the gate electrode 22 . The second electrode plate 28 is located between the second gate insulating layer 23 and the interlayer dielectric layer 24 and is disposed opposite to the first electrode plate 27 .

[0102] For example, the materials of the gate 22, the first electrode 27, and the second electrode 28 may include metal materials or alloy materials, such as molybdenum, aluminum, and titanium. The source 25 and the drain 26 may include metal materials or alloy materials, such as a metal single layer or multilayer structure formed by molybdenum, aluminum, and titanium. For example, the multilayer structure is a multi-metal layer stack, such as a titanium, aluminum, and titanium three-layer metal stack (Al / Ti / Al).

[0103] Specifically, refer to Fig.12 As shown, the light emitting layer 30 includes a first pixel electrode 31 and a pixel defining portion 34 which are sequentially formed on the interlayer dielectric layer 24 . It should be understood that the display device may further include a light emitting portion 32 and a second pixel electrode 33 .

[0104] Specifically, when the thin film transistor in the display area AA is a top-gate type, a planarization layer 29 may be formed before the display device is formed. The planarization layer 29 may be a single-layer structure or a multi-layer structure. The planarization layer 29 is usually formed of organic materials, such as photoresist, acrylic polymer, silicon polymer, etc. Fig.12As shown, the planarization layer 29 may include a planarization portion located in the display area AA, and the planarization portion is formed between the interlayer dielectric layer 24 and the first pixel electrode 31. The first pixel electrode 31 may be electrically connected to the drain electrode 26 through a metal via, and the first pixel electrode 31 may be an anode, and the anode may be made of materials such as ITO (indium tin oxide), indium zinc oxide (IZO), and zinc oxide (ZnO); the pixel defining portion 34 may cover the planarization portion, and the pixel defining portion 34 may be made of an organic material, such as an organic material such as a photoresist, and the portion of the pixel defining portion 34 located in the display area AA may have a pixel opening exposing the first pixel electrode 31; the light emitting portion 32 is located in the pixel opening and formed on the first pixel electrode 31, and the light emitting portion 32 may include a small molecule organic The material or polymer molecule organic material can be a fluorescent material or a phosphorescent material, which can emit red light, green light, blue light, or white light, etc.; and, according to different actual needs, in different examples, the light-emitting portion 32 can further include functional layers such as an electron injection layer, an electron transport layer, a hole injection layer, and a hole transport layer; the second pixel electrode 33 covers the light-emitting portion 32, and the polarity of the second pixel electrode 33 is opposite to the polarity of the first pixel electrode 31; the second pixel electrode 33 can be a cathode, and the cathode can be made of metal materials such as lithium (Li), aluminum (Al), magnesium (Mg), and silver (Ag).

[0105] It should be noted that if Fig.12 As shown, the first pixel electrode 31, the light-emitting portion 32 and the second pixel electrode 33 may constitute a light-emitting sub-pixel. Among them, the portion of the display device located in the display area AA may include a plurality of light-emitting sub-pixels arranged in an array. In addition, it should be noted that the first pixel electrodes 31 of each light-emitting sub-pixel are independent of each other, and the second pixel electrodes 33 of each light-emitting sub-pixel are connected on the entire surface; that is, the second pixel electrode 33 is a whole-surface structure arranged on the display panel, and is a common electrode for multiple display devices.

[0106] Meanwhile, the first encapsulation layer 41 , the third encapsulation layer 43 and the second encapsulation layer 42 of the encapsulation structure 40 are sequentially arranged on a side of the light emitting layer 30 facing away from the substrate 10 .

[0107] Based on the same inventive concept, an embodiment of the present application discloses a display device, comprising any display panel as described above in the embodiment of the present application.

[0108] Specifically, the display device may include a computer monitor, a television, a billboard, a laser printer with a display function, a telephone, a mobile phone, a personal digital assistant (PDA), a laptop computer, a digital camera, a camcorder, a viewfinder, a vehicle, a large-area wall, a theater screen, or a stadium sign, etc.

[0109] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0110] It should also be noted that, in this article, the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations, nor can they be understood as indicating or implying relative importance. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. Without more restrictions, an element defined by the phrase "comprising a ..." does not exclude the existence of other identical elements in the process, method, article or terminal device comprising the element.

[0111] The technical solution provided by the present application is described in detail above. The principle and implementation method of the present application are described in this article using specific examples. The description of the above embodiments is only used to help understand the present application, and the content of this specification should not be understood as limiting the present application. At the same time, for those of ordinary skill in the art, according to the present application, there will be different forms of changes in the specific implementation methods and application scopes. It is not necessary and impossible to list all the implementation methods here, and the obvious changes or modifications derived therefrom are still within the scope of protection of the present application.

Claims

1. A display panel, characterized in that: include: An opening area, a display area at least partially surrounding the opening area, and a transition area between the opening area and the display area; The display panel comprises in the opening area: substrate; A first encapsulation layer is disposed on one side of the substrate; A second encapsulation layer is disposed on a side of the first encapsulation layer away from the substrate; A first partition area is distributed in the opening area in an annular shape; at least one opening disposed in the opening area; The first encapsulation layer is disconnected in the first partition area, the second encapsulation layer is continuous in the first partition area, and the orthographic projection of the at least one opening on the substrate is located in an area enclosed by a boundary line of the first partition area closest to the transition zone.

2. The display panel according to claim 1, characterized in that: The display panel further comprises a plurality of isolation columns in the transition region, wherein the isolation columns are arranged around the opening region, and the isolation column closest to the opening region among the plurality of isolation columns is an outer isolation column; The first partition area is located on a side of the outer spacer column away from the display area.

3. The display panel according to claim 2, characterized in that: The distance between the first partition region and the outer isolation column is greater than or equal to 2.0 μm.

4. The display panel according to claim 1, wherein: The orthographic projection of the edge of the opening on the substrate coincides with the edge of the first partition area.

5. The display panel according to claim 1, wherein: The orthographic projection of the edge of the opening on the substrate is located within the area enclosed by the first partition area.

6. The display panel according to claim 1, characterized in that: The first encapsulation layer forms a first climbing section on at least one side of the first partition area; The second encapsulation layer forms a second climbing section on at least one side of the first partition area.

7. The display panel according to claim 1, characterized in that: A plurality of the first partition regions are provided, and the plurality of the first partition regions are distributed in concentric circles. The first encapsulation layer is disconnected in each of the first partition regions, and the second encapsulation layer is continuous in each of the first partition regions.

8. The display panel according to claim 7, characterized in that: The first encapsulation layer forms a first climbing section on at least one side of each of the first partition regions; The second packaging layer forms a second climbing section on at least one side of each of the first partition regions.

9. The display panel according to claim 7, characterized in that: The first partition area is provided with two; The two first partition regions include a first sub-region and a second sub-region, and the second sub-region is located within the first sub-region; The orthographic projection of the edge of the opening on the substrate coincides with the edge of the second sub-region.

10. The display panel according to claim 1, characterized in that: The display panel further comprises a second partition region in the transition region; The orthographic projection of the second partition area on the substrate is located within the area enclosed by the first partition area; The first encapsulation layer is continuous in the second isolation region, and the second encapsulation layer is disconnected in the second isolation region.

11. The display panel according to claim 10, characterized in that: The orthographic projection of the edge of the opening on the substrate coincides with the edge of the second partition area.

12. The display panel according to claim 10, characterized in that: The second packaging layer forms a third climbing section on at least one side of the second partition area.

13. The display panel according to any one of claims 1 to 12, characterized in that: The display panel comprises in the display area: substrate; The third encapsulation layer is arranged between the first encapsulation layer and the second encapsulation layer.

14. The display panel according to claim 13, characterized in that: The display panel further comprises in the display area: A driving circuit layer is arranged on one side of the substrate; A light-emitting layer is arranged on a side of the driving circuit layer away from the substrate; The first encapsulation layer, the third encapsulation layer and the second encapsulation layer are sequentially arranged on a side of the light-emitting layer away from the substrate.

15. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-14.

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