CN114039015A

CN114039015A - Display panel and display device

Info

Publication number: CN114039015A
Application number: CN202111406918.2A
Authority: CN
Inventors: 王格; 蒋志亮; 何庆; 龙再勇; 袁晓敏; 燕青青; 潘向南; 陈敏
Original assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-02-11
Anticipated expiration: 2041-11-24
Also published as: CN114039015B; CN116249378A

Abstract

The application discloses display panel and display device relates to and shows technical field. The first organic functional layer (103) and the first encapsulation layer (104) in the display panel (10) are both broken at the at least one isolation structure (102), so that moisture and oxygen do not continue to enter the display region (101c) along the first organic functional layer (103) and the first encapsulation layer (104) after entering from the side of the display panel (10) in the aperture region (101 a). Therefore, the corrosion of the sub-pixels of the display panel (10) positioned in the display area (10) can be avoided, and the display effect of the display device can be ensured. In addition, the second packaging layer (105) is not broken at any isolation structure (102), so that the packaging effect of the second packaging layer (105) can be ensured, and the yield of the display panel (10) is improved.

Description

Display panel and display device

Technical Field

The present disclosure relates to display technologies, and particularly to a display panel and a display device.

Background

Organic Light Emitting Diode (OLED) display panels are widely used in display devices due to their foldable and bendable features.

In the related art, a display panel included in the display device may have a via hole for disposing a camera. Because the side of the via hole that sets up the camera exposes outside, therefore outside steam and oxygen can get into this display panel along the side of this via hole, lead to sub-pixel in the display panel to be corroded by steam and oxygen easily, influence display device's display effect.

Disclosure of Invention

The application provides a display panel and a display device, which can solve the problem of poor display effect of the display device in the related art. The technical scheme is as follows:

in one aspect, there is provided a display panel including:

a substrate base plate having a hole region, a transition region surrounding the hole region, and a display region surrounding the transition region;

the at least one isolation structure is positioned on one side of the substrate base plate, the at least one isolation structure is positioned in the transition region, and the orthographic projection of the at least one isolation structure on the substrate base plate surrounds the hole region;

a first organic functional layer on a side of the at least one isolation structure away from the substrate base plate, the first organic functional layer being located in the transition region and the display region, the at least one isolation structure including at least a first target isolation structure, the first organic functional layer being broken at least at the first target isolation structure;

the first packaging layer is positioned on one side, far away from the substrate, of the first organic functional layer, the first packaging layer is positioned in the transition area and the display area, and the first packaging layer is broken at the first target isolation structure;

and the second packaging layer is positioned on one side of the first packaging layer, which is far away from the substrate base plate, the second packaging layer is positioned in the transition area and the display area, and the second packaging layer is not broken at any isolation structure.

Optionally, the first organic functional layer includes a broken first portion and a broken second portion, an orthographic projection of the first portion on the substrate is overlapped with an orthographic projection of the first target isolation structure on the substrate, and an orthographic projection of the second portion on the substrate is not overlapped with an orthographic projection of the first target isolation structure on the substrate;

the first packaging layer comprises a third broken part and a fourth broken part, wherein the orthographic projection of the third part on the substrate base plate is overlapped with the orthographic projection of the first target isolation structure on the substrate base plate, and the orthographic projection of the fourth part on the substrate base plate is not overlapped with the orthographic projection of the first target isolation structure on the substrate base plate.

Optionally, the first target isolation structure includes: the first film layer, the second film layer and the third film layer are sequentially stacked along the direction far away from the substrate base plate;

the first film layer and the third film layer are metal film layers, and the second film layer is an insulating film layer.

Optionally, the display panel includes:

the active layer, the first gate insulating layer, the first gate layer, the second gate insulating layer, the second gate layer, the interlayer dielectric layer, the first source drain layer, the first flat layer, the second source drain layer and the second flat layer are sequentially stacked along the direction far away from the substrate; the active layer, the first gate layer, the second gate layer, the first source drain layer, the first planarization layer and the second planarization layer are located in the display area, and the first gate insulating layer, the second gate insulating layer and the interlayer dielectric layer are located in the transition area and the display area;

wherein the first film layer and the third film layer are both on the same layer as any one of the following film layers: the first gate layer, the second gate layer, the first source drain layer and the second source drain layer, and the first film layer and the third film layer are located on different layers.

Optionally, the first film layer and the first source drain layer are located on the same layer, the second film layer and the first flat layer are located on the same layer, and the third film layer and the second source drain layer are located on the same layer.

Optionally, at least one of the isolation structures further includes: the fourth film layer is positioned on one side of the third film layer far away from the substrate base plate;

the fourth film layer and the second flat layer are located on the same layer.

Optionally, orthographic projections of the first film layer and the third film layer on the reference plane are both in an i shape;

wherein the reference plane is perpendicular to the bearing surface of the substrate base plate.

Optionally, the first film layer and the third film layer each include: the first metal layer, the second metal layer and the third metal layer are sequentially stacked along the direction far away from the substrate base plate;

and the etching rate of the second metal layer is greater than that of the first metal layer and greater than that of the third metal layer.

Optionally, the first metal layer and the third metal layer are made of titanium, and the second metal layer is made of aluminum.

Optionally, the display panel further includes: the anode layer, the light-emitting film layer and the cathode layer are sequentially stacked along the direction far away from the substrate; the light-emitting film layer comprises the first organic functional layer, a second organic functional layer and a light-emitting pattern;

wherein the anode layer, the second organic functional layer and the light emitting pattern are located in the display region, and the cathode layer is located in the transition region and the display region; the first organic functional layer at least comprises a hole transport layer and an electron transport layer, and the second organic functional layer at least comprises a hole injection layer and an electron injection layer.

Optionally, the number of the isolation structures included in the display panel is greater than or equal to 3.

Optionally, the at least one isolation structure further comprises a second target isolation structure;

the first organic functional layer is fractured at the second target isolation structure, and neither the first encapsulation layer nor the second encapsulation layer is fractured at the second target isolation structure.

Optionally, the second target isolation structure includes: a fifth film layer;

wherein the fifth layer is located on the same layer as any one of the following layers: the semiconductor device comprises a first gate layer, a second gate layer, a first source drain layer and a second source drain layer.

Optionally, the material of the first organic functional layer is an organic material; the first packaging layer and the second packaging layer are both made of inorganic materials.

Optionally, the first encapsulation layer is made of silicon oxynitride; the second packaging layer is made of silicon nitride.

Optionally, the display panel further includes: a third encapsulation layer located between the first encapsulation layer and the second encapsulation layer;

the third encapsulation layer is located in the display area and not in the transition area.

Optionally, the material of the third encapsulation layer is an organic material.

In another aspect, there is provided a display device comprising a power supply assembly and a display panel as described in the above aspect;

the power supply assembly is used for supplying power to the display panel.

The beneficial effect that technical scheme that this application provided brought includes at least:

the application provides a display panel and a display device, wherein a first organic functional layer and a first packaging layer in the display panel are both broken at least one isolation structure, so that water vapor and oxygen cannot continuously enter a display area along the first organic functional layer and the first packaging layer after entering from the side face of the display panel positioned in a hole area. Therefore, the corrosion of the sub-pixels of the display panel in the display area can be avoided, and the display effect of the display device can be ensured. In addition, the second packaging layer is not broken at any isolation structure, so that the packaging effect of the second packaging layer can be ensured, and the yield of the display panel is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

fig. 2 is a top view of a substrate provided in an embodiment of the present application;

FIG. 3 is a schematic diagram of a partial structure of an isolation structure and a substrate provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a portion of a display panel located in a display area according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of another display panel provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of another display panel provided in the embodiment of the present application;

fig. 7 is a schematic structural diagram of another display panel provided in an embodiment of the present application;

fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application. As can be seen with reference to fig. 1, the display panel 10 may include: a substrate 101, at least one isolation structure 102, a first organic functional layer 103, a first encapsulation layer 104 and a second encapsulation layer 105.

Referring to fig. 1, the at least one isolation structure 102 is located on one side of the substrate base plate 101, the first organic functional layer 103 is located on one side of the at least one isolation structure 102 away from the substrate base plate 101, the first encapsulation layer 104 is located on one side of the first organic functional layer 103 away from the substrate base plate 101, and the second encapsulation layer 105 is located on one side of the first encapsulation layer 104 away from the substrate base plate 101. That is, at least one isolation structure 102, a first organic functional layer 103, a first encapsulation layer 104, and a second encapsulation layer 105 are sequentially stacked in a direction away from the base substrate 101.

Fig. 2 is a top view of a substrate provided in an embodiment of the present application. Referring to fig. 2, the substrate base plate 101 may have a hole region 101a, a transition region 101b surrounding the hole region 101a, and a display region 101c surrounding the transition region 101 b. The hole area 101a may have a through hole or a blind hole, and the camera may be disposed in the through hole or the blind hole. The display area 101c may be used for displaying, for example, a portion of the display panel 10 located in the display area 101c may be provided with a plurality of sub-pixels a, which may be used for displaying an image. The transition region 101b may be a transition region between the aperture region 101a and the display region 101 c.

Fig. 3 is a schematic partial structure diagram of an isolation structure and a substrate provided in an embodiment of the present application. Referring to fig. 1 and 3, the at least one isolation structure 102 is located within the transition region 101b, and an orthographic projection of the at least one isolation structure 102 on the substrate base plate 101 surrounds the aperture region 101 a. The at least one isolation structure 102 comprises at least a first target isolation structure 102 a.

Referring to fig. 1, the first organic functional layer 103 is located in the transition area 101b and the display area 101c, and the first organic functional layer 103 is broken at least at the first target isolation structure 102 a. The first encapsulation layer 104 is located at the transition region 101b and the display region 101c, and the first encapsulation layer 104 is broken at the first target isolation structure 102 a. The second encapsulation layer 105 is located in the display region 101c and the display region 101c, and the second encapsulation layer 105 is not broken at any of the isolation structures 102.

By way of example, fig. 1 shows two isolation structures 102. The first organic functional layer 103 is broken at both isolation structures 102. The first encapsulation layer 104 is fractured at the first target isolation structure 102a and is not fractured at the second target isolation structure 102 b.

It should be noted that water vapor and oxygen will be transported along the first organic functional layer 103 and the first encapsulating layer 104, but not along the second encapsulating layer 105. In the embodiment of the present application, since both the first organic functional layer 103 and the first encapsulating layer 104 are broken at the first target insulating structure 102, even if moisture and oxygen enter the first organic functional layer 103 or the first encapsulating layer 104 from the side of the display panel 10 located in the aperture region 101a, the moisture and oxygen can be blocked outside the first target insulating structure 102a without entering the display region 101c along the first organic functional layer 103 and the first encapsulating layer 104. Therefore, the sub-pixels b of the display panel 10 in the display area 101c can be prevented from being corroded by water vapor and oxygen, and the display effect of the display device can be ensured.

Moreover, the second encapsulation layer 105 is not broken at any isolation structure 102, so that the encapsulation effect of the second encapsulation layer 105 can be ensured, and the yield of the display panel 10 is improved.

In summary, the embodiments of the present application provide a display panel, in which both a first organic functional layer and a first encapsulation layer are broken at least one isolation structure, so that water vapor and oxygen do not enter into a display area along the first organic functional layer and the first encapsulation layer after entering from a side of the display panel located in an aperture area. Therefore, the corrosion of the sub-pixels of the display panel in the display area can be avoided, and the display effect of the display device can be ensured. In addition, the second packaging layer is not broken at any isolation structure, so that the packaging effect of the second packaging layer can be ensured, and the yield of the display panel is improved.

Alternatively, the display panel may be a flexible display panel.

In the embodiment of the present application, the material of the first organic functional layer 103 may be an organic material, and the materials of the first encapsulation layer 104 and the second encapsulation layer 105 are both inorganic materials. For example, the material of the first encapsulation layer 104 is silicon oxynitride (SiNO), and the material of the second encapsulation layer 105 is silicon nitride (SiN).

Since the material of the first organic functional layer 103 is an organic material, and the organic material is prone to absorb water and oxygen, water vapor and oxygen may enter the display panel 10 from the first organic functional layer 103 on the side of the hole region 101a of the display panel 10. By breaking the first organic functional layer 103 at the at least one separation structure 102, moisture and oxygen can be prevented from entering the display area 101c along the first organic functional layer 103.

Since the material (silicon oxynitride) of the first encapsulating layer 104 is weaker in oxidation resistance than the material (silicon nitride) of the second encapsulating layer 105, if only the first organic functional layer 103 is broken, the first encapsulating layer 104 in contact with the first organic functional layer 103 is corroded as the amount of water and oxygen adsorbed by the first organic functional layer 103 increases. This may cause some moisture and oxygen in the first encapsulation layer 104, which can enter the display region 101c along the unbroken first encapsulation layer 104, resulting in display failure of the display panel 10.

In the embodiment of the present application, by breaking both the first organic functional layer 103 and the first encapsulation layer 104 at the first target separation structure 102a, the water and oxygen passage from the hole region 101a to the display region 101c can be completely blocked, and water vapor and oxygen are prevented from entering the display region 101c along the first organic functional layer 103 and the first encapsulation layer 104. Therefore, the sub-pixel a of the display panel 10 in the display area 101c can be prevented from being corroded by water vapor and oxygen, the packaging effect of the display panel is improved, and the display effect of the display device is further ensured.

As can be seen with reference to fig. 1, the first organic functional layer 103 may comprise a broken first portion 1031 and a second portion 1032. Wherein the first portion 1031 is located on the upper side of the isolation structure 102 that ruptures the first organic functional layer 103, the second portion 1032 is located on the upper side of the base substrate 101, and is located on the upper side of the isolation structure 102 that does not rupture the first organic functional layer 103.

Optionally, since the first target isolation structure 102a can fracture the first organic functional layer 103, an orthographic projection of the first portion 1031 on the substrate base 101 overlaps with an orthographic projection of the first target isolation structure 102a on the substrate base 101, and an orthographic projection of the second portion 1032 on the substrate base 101 does not overlap with an orthographic projection of the first target isolation structure 102a on the substrate base 101.

By way of example, two isolation structures 102 (a first target isolation structure 102a and a second target isolation structure 102b) are shown in fig. 1, and the first organic functional layer 103 is broken at both isolation structures 102. The portions of the first organic functional layer 103 located on the upper sides of the first target isolation structure 102a and the second target isolation structure 102b are both the first portions 1031, and the portion located on the upper side of the substrate base 101 is the second portion 1032. Two first portions 1031 and three second portions 1032 are shown in fig. 1.

As can also be seen with reference to fig. 1, the first encapsulation layer 104 includes a third portion 1041 and a fourth portion 1042 that are broken. The third portion 1041 is located on the upper side of the isolation structure 102 that breaks the first package layer 104, the fourth portion 1042 is located on the upper side of the substrate base plate 101, and is located on the upper side of the other isolation structures 102 that do not break the first package layer 104.

Optionally, since the first target isolation structure 102a can fracture the first encapsulation layer 104, an orthogonal projection of the third portion 1041 on the substrate base 101 overlaps an orthogonal projection of the first target isolation structure 102a on the substrate base 101, and an orthogonal projection of the fourth portion 1042 on the substrate base 101 does not overlap an orthogonal projection of the first target isolation structure 102a on the substrate base 101.

Illustratively, two isolation structures 102 are shown in fig. 1, and the first encapsulation layer 104 is broken at the first target isolation structure 102a, but not at the second target isolation structure 102 b. The portion of the first encapsulation layer 104 located on the upper side of the first target isolation structure 102a is a third portion 1041, and the portions located on the upper side of the substrate base 101 and the upper side of the second target isolation structure 102b are fourth portions 1042. In fig. 1, a third portion 1041 and two fourth portions 1042 are shown.

Fig. 4 is a schematic structural diagram of a portion of a display panel located in a display area according to an embodiment of the present application. As can be seen with reference to fig. 4, the display panel 10 may further include: the active layer 106, the first gate insulating layer 107, the first gate layer 108, the second gate insulating layer 109, the second gate layer 110, the interlayer dielectric layer 111, the first source drain layer 112, the first planarization layer 113, the second source drain layer 114, and the second planarization layer 115 are sequentially stacked in a direction away from the substrate base plate 101.

Referring to fig. 4 and 5, the first gate layer 108, the second gate layer 110, the first source drain layer 112, the first planarization layer 113, the second source drain layer 114, and the second planarization layer 115 are disposed in the display region 101c, and the first gate insulating layer 107, the second gate insulating layer 109, and the interlayer dielectric layer 111 are disposed in the transition region 101b and the display region 101 c.

In the embodiment of the present application, referring to fig. 6, the first target isolation structure 102a in the display panel 10 may include: the film comprises a first film layer 1021, a second film layer 1022 and a third film layer 1023 which are sequentially stacked in a direction away from the substrate base plate 101.

The first film 1021 and the third film 1023 can be both metal films, and the second film 1022 is an insulating film.

Optionally, the first gate layer 108, the second gate layer 110, the first source drain layer 112, and the second source drain layer 114 in the display panel 10 are all metal film layers. The first film 1021 and the third film 1023 may both be on the same layer as any of the following films: a first gate layer 108, a second gate layer 110, a first source drain layer 112, and a second source drain layer 114. Also, the first film 1021 and the third film 1023 are on different layers.

For example, the first film layer 1021 may be located at the same layer as the first source drain layer 112. The third film layer 1023 may be located at the same layer as the second source drain layer 114. Accordingly, the second film layer 1021 may be in the same layer as the first planarization layer 113 between the first source drain layer 112 and the second source drain layer 114. That is, the first film 1021 and the first source/drain layer 112 are made of the same material and are prepared by the same patterning process. The second film layer 1022 and the first planarization layer 113 are made of the same material and are formed by the same patterning process. The third film 1023 and the second source/drain layer 114 are made of the same material and are formed by the same patterning process.

Fig. 7 is a schematic structural diagram of another display panel provided in the embodiment of the present application. As can be seen with reference to fig. 7, the first target isolation structure 102a may further include: and a fourth film layer 1024 on the side of the third film layer 1023 away from the substrate base plate 101. The fourth layer 1021 may be an insulating layer.

Alternatively, in the case that the first film 1021 and the first source/drain layer 112 are located on the same layer, and the third film 1023 and the second source/drain layer 114 are located on the same layer, the fourth film 1024 and the second planar layer 115 are located on the same layer. That is, the fourth film 1024 and the second flat layer 115 are made of the same material and are formed by the same patterning process.

It should be noted that the first target isolation structure 102a may further include more metal film layers and more insulating film layers, for example, the first target isolation structure 102a may include three metal film layers and two insulating film layers, which is not limited in this embodiment of the present invention.

Referring to fig. 6 and 7, it can be seen that the orthographic projections of the first film layer 1021 and the third film layer 1023 on the reference plane are both in an i shape. The reference plane may be perpendicular to the carrying surface of the substrate base plate 101, and the target line may be located on the reference plane. The target link may be perpendicular to a boundary between the aperture region 101a and the transition region 101b, and perpendicular to a boundary between the transition region 101b and the display region 101 c.

By arranging the first film layer 1021 and the third film layer 1023 in the first target isolation structure 102a in an i-shape, it is convenient to break the first organic functional layer 103 and the first encapsulation layer 104 at the at least one isolation structure 102, and prevent moisture and oxygen from entering the display area 101 c.

Referring to fig. 6 and 7, the first film 1021 and the third film 1023 may each include: a first metal layer, a second metal layer, and a third metal layer stacked in this order in a direction away from the base substrate 101. The etching rate of the second metal layer is greater than that of the first metal layer and greater than that of the third metal layer.

In this embodiment, since the etching rate of the second metal layer is relatively high, and the etching rates of the first metal layer and the third metal layer are relatively low, the first film layer 1021 and the third film layer 1023 can be in an i shape based on the difference of the etching rates of the metal layers.

For example, assuming that the first film layer 1021 and the first source drain layer 112 are located on the same layer, and the third film layer 1023 and the second source drain layer 114 are located on the same layer, since the first source drain layer 112 and the second source drain layer 114 are generally formed by stacking three layers of metals, i.e., titanium (Ti), aluminum (Al), and titanium (Ti), the materials of the first metal layer and the third metal layer in the first film layer 1021 and the third film layer 1023 may be both titanium (Ti), and the material of the second metal layer may be aluminum (Al).

In the embodiment of the present application, the display panel 10 may include the number of the isolation structures 102 greater than or equal to 3. By designing a larger number of isolation structures 102 in the display panel 10, effective blocking of the isolation structures 102 against water vapor and oxygen can be ensured, and water vapor and oxygen are further prevented from entering the display area 101 c.

Referring to fig. 1, and 5-7, the at least one isolation structure 102 may further include: a second target isolation structure 102 b. Wherein the first organic functional layer 103 is broken at the second target isolation structure 102b, and neither the first encapsulation layer 104 nor the second encapsulation layer 105 is broken at the second target isolation structure 102 b.

Referring to fig. 6 and 7, the second target isolation structure 102b may include a fifth film layer 1025. The fifth film layer 1025 in the second target isolation structure 102b may be co-located with any of the following layers: a first gate layer 107, a second gate layer 110, a first source drain layer 112 and a second source drain layer 114.

Optionally, the fifth film layer 1025 in the second target isolation structure 102b may be located at the same layer as the first film layer 1021 in the first target isolation structure 102 a. For example, the fifth film layer 1025 in the second target isolation structure 102b and the first film layer 1021 in the first target isolation structure 102a are both in the same layer as the first source drain layer 112. Of course, the fifth film layer 1025 in the second target isolation structure 102b may also be located at a different layer from the first film layer 1021 in the first target isolation structure 102 a. The embodiment of the present application does not limit this.

In the embodiment of the present application, the film layers included in each of the isolation structures 102 included in the display panel 10 may be different. Of course, the film layers included in each isolation structure 102 included in the display panel may also be the same. The embodiment of the present application does not limit this.

Illustratively, two isolation structures 102 are shown in fig. 6, wherein the first target isolation structure 102a includes a first film layer 1021, a second film layer 1022 and a third film layer 1023, which are sequentially stacked, and the second target isolation structure 102b includes only a fifth film layer 1025. Two isolation structures 102 are shown in fig. 7, wherein the first target isolation structure 102a includes a first film layer 1021, a second film layer 1022, a third film layer 1023, and a fourth film layer 1024, which are sequentially stacked, and the second target isolation structure 102b includes only a fifth film layer 1025.

No matter what the film layers of each isolation structure 102 in the display panel 10 include, it is only necessary to ensure that the first organic functional layer 103 and the first encapsulation layer 104 are broken at least one isolation structure 102 (e.g., the first target isolation structure 102a in fig. 1) in the display panel 10.

Alternatively, in the case where the display panel 10 includes a plurality of the barrier structures 102, the first organic functional layer 103 and the first encapsulating layer 104 may be caused to break at least at one of the barrier structures 102 closest to the hole region 101 a. That is, one isolation structure 102 of the plurality of isolation structures 102 that is closest to the hole region 101a may be the first target isolation structure 102 a. For example, one isolation structure 102 closest to the hole region 101a among the plurality of isolation structures 102 includes a first film layer 1021, a second film layer 1022, and a third film layer 1023, which are sequentially stacked. Alternatively, one isolation structure 102 closest to the hole region 101a among the plurality of isolation structures 102 may include a first film layer 1021, a second film layer 1022, a third film layer 1023, and a fourth film layer 1024, which are sequentially stacked.

In the embodiment of the present application, each sub-pixel a located in the display region 101c in the display panel 10 may include a pixel circuit and a light emitting unit. The pixel circuit may include a storage capacitor and at least one thin film transistor.

Alternatively, the active layer 106 may include a plurality of active patterns. The first gate layer 108 may include a plurality of first gate patterns. The second gate layer 110 may include a plurality of second gate patterns. The first source drain layer 112 may include a plurality of sources and a plurality of drains corresponding to the plurality of sources one to one. The second source drain layer 114 may include a plurality of connection patterns.

Wherein, an active pattern, a first gate pattern, a source electrode and a drain electrode may constitute a thin film transistor, and the source electrode and the corresponding drain electrode of each thin film transistor may be connected to the active pattern. One first gate pattern and one second gate pattern may constitute one storage capacitor.

Referring to fig. 4, the display panel 10 may further include: an anode layer 116, a light-emitting film layer 117, and a cathode layer 118 are sequentially stacked in a direction away from the base substrate 101. The anode layer 116, the light-emitting film layer 117, and the cathode layer 118 may constitute a light-emitting unit of the plurality of sub-pixels a.

The anode layer 116 may include a plurality of anode patterns. The light emitting film layer 117 may include a first organic functional layer 103, a second organic functional layer, and a light emitting pattern (only the light emitting pattern is shown to represent the light emitting film layer 117). The anode layer 116, the second organic functional layer and the light emitting pattern are located in the display region 101c, and the cathode layer 118 is located in the transition region 101b and the display region 101 c.

The anode layer 116, the second organic functional layer and the light emitting pattern all located in the display region 101c may refer to: the anode layer 116, the second organic functional layer, and the light emitting pattern are located only in the display region 101c, and are not located in the transition region 101 b. The first organic functional layer 103 may include at least a hole transport layer and an electron transport layer, and the second organic functional layer may include at least a hole injection layer and an electron injection layer.

Referring to fig. 4, the display panel 10 may further include: a pixel defining layer 119. The pixel defining layer 119 may be located on a side of the anode layer 116 remote from the substrate base 101. The pixel defining layer 119 may have a plurality of hollow areas, and each hollow area may be used to expose an anode pattern of one sub-pixel a. The anode pattern of each sub-pixel a is connected to the drain electrode of the thin film transistor through a connection pattern.

In the embodiment of the present application, referring to fig. 4, the display panel 10 may further include: and a third encapsulation layer 120. The third encapsulation layer 120 may be located between the first encapsulation layer 104 and the second encapsulation layer 105. The third encapsulation layer 120 may be located in the display region 101c and not in the transition region 101 b.

Alternatively, the material of the third encapsulation layer 120 may be an organic material. Moreover, since the third encapsulating layer 120 is made of an organic material, the third encapsulating layer 120 is not located in the transition region, so that water vapor and oxygen can be prevented from entering the display region from the third encapsulating layer 120, and the encapsulating effect of the display panel 10 can be ensured.

In the embodiment of the present application, the third encapsulation layer 120 may be made of a resin material. The resin may be a thermoplastic resin or a thermoplastic resin, the thermoplastic resin may include acryl (PMMA) resin, and the thermosetting resin may include epoxy resin.

Alternatively, the third encapsulation layer 120 may be manufactured by an Ink Jet Printing (IJP) method. The first encapsulation layer and the second encapsulation layer can be manufactured by Chemical Vapor Deposition (CVD).

Fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present application. Referring to fig. 8, the display apparatus may include a power supply assembly 20 and a display panel 10. The power supply assembly 20 may be connected to the display panel 10, and the power supply assembly 20 may be used to supply power to the display panel 10.

Optionally, the display device may be an OLED display device, a quantum dot light emitting diode (QLED) display device, electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, or any product or component with a display function and a fingerprint identification function.

The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that the display panel (10) comprises:

a substrate base plate (101), the substrate base plate (101) having a hole region (101a), a transition region (101b) surrounding the hole region (101a), and a display region (101c) surrounding the transition region (101 b);

at least one isolation structure (102) located on one side of the substrate base plate (101), the at least one isolation structure (102) being located at the transition region (101b), and an orthographic projection of the at least one isolation structure (102) on the substrate base plate (101) surrounding the hole region (101 a);

a first organic functional layer (103) on a side of the at least one isolation structure (102) remote from the base substrate (101), the first organic functional layer (103) being located in the transition region (101b) and the display region (101c), the at least one isolation structure (102) comprising at least a first target isolation structure (102a), the first organic functional layer (103) breaking at least at the first target isolation structure (102 a);

a first encapsulation layer (104) on a side of the first organic functional layer (103) remote from the base substrate (101), the first encapsulation layer (104) being located in the transition region (101b) and the display region (101c), the first encapsulation layer (104) breaking at the first target isolation structure (102 a);

and a second encapsulation layer (105) located on a side of the first encapsulation layer (104) away from the substrate base plate (101), the second encapsulation layer (105) being located in the transition region (101b) and the display region (101c), the second encapsulation layer (105) not breaking at any of the isolation structures (102).

2. The display panel according to claim 1, wherein the first organic functional layer (103) comprises a broken first portion (1031) and a second portion (1032), an orthographic projection of the first portion (1031) on the substrate (101) overlapping an orthographic projection of the first target isolation structure (102a) on the substrate (101), an orthographic projection of the second portion (1032) on the substrate (101) not overlapping an orthographic projection of the first target isolation structure (102a) on the substrate (101);

the first encapsulation layer (104) comprises a third portion (1041) and a fourth portion (1042) which are broken, wherein an orthographic projection of the third portion (1041) on the substrate base plate (101) is overlapped with an orthographic projection of the first target isolation structure (102a) on the substrate base plate (101), and an orthographic projection of the fourth portion (1042) on the substrate base plate (101) is not overlapped with an orthographic projection of the first target isolation structure (102a) on the substrate base plate (101).

3. The display panel of claim 1, wherein the first target isolation structure (102a) comprises: a first film layer (1021), a second film layer (1022) and a third film layer (1023) which are sequentially laminated in a direction away from the base substrate (101);

the first film layer (1021) and the third film layer (1023) are metal film layers, and the second film layer (1022) is an insulating film layer.

4. A display panel according to claim 3, characterized in that the display panel (10) comprises:

the active layer (106), the first gate insulating layer (107), the first gate layer (108), the second gate insulating layer (109), the second gate layer (110), the interlayer dielectric layer (111), the first source drain layer (112), the first flat layer (113), the second source drain layer (114) and the second flat layer (115) are sequentially stacked along a direction far away from the substrate base plate (101); the active layer (106), the first gate layer (108), the second gate layer (110), the first source drain layer (112), the first planarization layer (113) and the second planarization layer (115) are located in the display region (101c), the first gate insulating layer (107), the second gate insulating layer (109) and the interlayer dielectric layer (111) are located in the transition region (101b) and the display region (101 c);

wherein the first film (1021) and the third film (1023) are both on the same layer as any of the following films: the first gate layer (107), the second gate layer (110), the first source drain layer (112) and the second source drain layer (114), and the first film layer (1021) and the third film layer (1023) are located at different layers.

5. The display panel according to claim 4, wherein the first film layer (1021) and the first source/drain layer (112) are in the same layer, the second film layer (1022) and the first flat layer (113) are in the same layer, and the third film layer (1023) and the second source/drain layer (114) are in the same layer.

6. The display panel of claim 5, wherein the first target isolation structure (102a) further comprises: a fourth film layer (1024) on a side of the third film layer (1023) remote from the substrate base plate (101);

the fourth film layer (1024) is in the same layer as the second planar layer (115).

7. A display panel according to claim 5 or 6, wherein the orthographic projections of the first (1021) and third (1023) film layers on a reference plane are both I-shaped;

wherein the reference plane is perpendicular to the bearing surface of the substrate base plate (101).

8. The display panel of claim 7, wherein the first film layer (1021) and the third film layer (1023) each comprise: a first metal layer, a second metal layer, and a third metal layer sequentially stacked in a direction away from the base substrate (101);

9. The display panel according to claim 8, wherein the first metal layer and the third metal layer are made of titanium, and the second metal layer is made of aluminum.

10. The display panel according to claim 4, wherein the display panel (10) further comprises: an anode layer (116), a light-emitting film layer (117), and a cathode layer (118) that are sequentially stacked in a direction away from the base substrate (101); the light-emitting film layer (117) comprises the first organic functional layer (103), a second organic functional layer and a light-emitting pattern;

wherein the anode layer (116), the second organic functional layer and the light emitting pattern are located in the display area (101c), and the cathode layer (118) is located in the transition area (101b) and the display area (101 c); the first organic functional layer (103) comprises at least a hole transport layer and an electron transport layer, and the second organic functional layer comprises at least a hole injection layer and an electron injection layer.

11. A display panel as claimed in any one of claims 1 to 6, characterized in that the display panel (10) comprises a number of barrier structures (102) of greater than or equal to 3.

12. The display panel of claim 11, wherein the at least one isolation structure (102) further comprises a second target isolation structure (102 b);

the first organic functional layer (103) is broken at the second target isolation structure (102b), neither the first encapsulation layer (104) nor the second encapsulation layer (105) is broken at the second target isolation structure (102 b).

13. The display panel of claim 12, wherein the second target isolation structure (102b) comprises: a fifth film layer (1025);

wherein the fifth film layer (1025) is on the same layer as any of the following film layers: the semiconductor device comprises a first gate layer (107), a second gate layer (110), a first source drain layer (112) and a second source drain layer (114).

14. The display panel according to any of claims 1 to 6, wherein the material of the first organic functional layer (103) is an organic material; the materials of the first packaging layer (104) and the second packaging layer (105) are both inorganic materials.

15. A display device, characterized in that it comprises a power supply assembly (20) and a display panel (10) according to any one of claims 1 to 14;

the power supply assembly (20) is used for supplying power to the display panel (10).