Display panel and display device

Abstract

The invention discloses a display panel and a display device, and belongs to the technical field of display. The display panel comprises a substrate, and a conductive support column, a conductive isolation column, a signal connection line, a first electrode layer and a polaroid which are located on one side of the substrate. The conductive supporting columns and the conductive isolation columns are located in the transition area of the display panel. The signal connecting line is electrically connected with the conductive supporting column and applies a positive potential signal to the conductive supporting column, a positive electric field is formed in the transition area, the positive electric field and the positively charged metal ions repel each other, and the positively charged metal ions in the polaroid are not prone to gathering near the conductive isolation column. Even if water and oxygen intruding into the transition area are subjected to electrolytic reaction under the action of the first electrode layer with negative electricity, metal ions near the conductive isolation column are less, so that the water and oxygen are not easy to form a strong alkaline environment with hydrogen ions and hydroxyl ions generated after the electrolytic reaction. Holes or expansion and other undesirable phenomena do not easily occur in the packaging layer, the packaging effect of the packaging layer is ensured, and the reliability of the display panel is high.

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] Organic light emitting diodes (OLED) are known as the next generation of display devices due to their advantages such as self-luminescence, high efficiency, bright colors, light weight, power saving and rollability, and have attracted more and more attention in recent years.

[0003] Generally, various sensors such as cameras need to be placed on the front of a display device integrated with an OLED display panel. In order not to affect the screen-to-body ratio of the display device, a light hole can be set in the display area of ​​the OLED display panel, and then the camera is placed on the back of the OLED display panel, and the light incident surface of the camera is close to the light hole in the OLED display panel. In this way, ambient light can pass through the light hole in the OLED display panel and then enter the light incident surface of the camera, so that the camera can normally acquire images.

[0004] At present, the OLED light-emitting devices in OLED display panels can usually be encapsulated with an encapsulation layer to isolate the OLED light-emitting devices from corrosion by water and oxygen. However, after the OLED display panel is provided with a light-through hole, water vapor in the external environment is very likely to be electrolyzed under the action of the charged cathode located near the light-through hole, which will in turn affect the encapsulation effect of the encapsulation layer, resulting in low reliability of the display panel. Summary of the invention

[0005] The embodiments of the present application provide a display panel and a display device, which can solve the problem of low reliability of OLED display panels in the prior art. The technical solution is as follows:

[0006] In one aspect, a display panel is provided, the display panel comprising: an opening area, a display area located outside the opening area, and a transition area located between the opening area and the display area; the display panel comprises: a substrate, and a light-emitting device, a conductive support column, a conductive isolation column, and a signal connection line located on one side of the substrate;

[0007] The light emitting devices are distributed in the display area;

[0008] The conductive support column and the conductive isolation column are both distributed in the transition area and are both distributed around the opening area; the conductive isolation column is located on a side of the conductive support column away from the substrate, and the conductive isolation column is insulated from the conductive support column;

[0009] The signal connection line is electrically connected to the conductive support column, and the signal connection line is used to apply a positive potential signal to the conductive support column.

[0010] Optionally, there are multiple conductive support pillars, the multiple conductive support pillars are nested and distributed, and two adjacent conductive support pillars are electrically connected;

[0011] Wherein, the signal connection line is electrically connected to the outermost conductive support column among the plurality of conductive support columns.

[0012] Optionally, there are multiple light-emitting devices; the display panel further comprises: multiple pixel driving circuits electrically connected to the multiple light-emitting devices; the multiple pixel driving circuits are arranged in multiple columns along the first direction and in multiple rows along the second direction;

[0013] Wherein, the signal connection line is electrically connected to at least a portion of the pixel driving circuit.

[0014] Optionally, the display panel further includes: a first power signal line, the first power signal line being electrically connected to each of the pixel driving circuits;

[0015] The signal connection line includes at least a portion of the first power signal line.

[0016] Optionally, the first power signal line includes: a plurality of first sub-power lines extending along the first direction, and a plurality of second sub-power lines extending along the second direction; the first sub-power lines are electrically connected to the second sub-power lines at a crossing position;

[0017] The signal connection line includes: two adjacent second sub-power lines located on both sides of the opening area in the first direction, and / or two adjacent first sub-power lines located on both sides of the opening area in the second direction.

[0018] Optionally, the display panel further comprises: a plurality of data signal lines, wherein the overall extension direction of the data signal lines is parallel to the second direction; the plurality of data signal lines correspond to a plurality of columns of the pixel driving circuits, and one of the data signal lines is electrically connected to a corresponding column of the pixel driving circuits;

[0019] The signal connection line includes a target data line, and the target data line is a data signal line among the plurality of data signal lines that is closest to the opening area in the first direction.

[0020] Optionally, the signal connection line further includes: a virtual data line, the overall extension direction of the virtual data line is parallel to the second direction, and the virtual data line is arranged separately from the pixel driving circuit;

[0021] Wherein, in the first direction, the opening area is located between a portion of the target data lines and a portion of the virtual data lines.

[0022] Optionally, the target data line includes: a target data line body and a first winding portion connected to each other; the virtual data line includes: a virtual data line body and a second winding portion connected to each other;

[0023] The extension directions of the target data line body and the virtual data line body are both parallel to the second direction, and are both distributed at least in the display area; the first winding portion and the second winding portion are located on both sides of the opening area in the first direction, and are both distributed in the transition area;

[0024] The first winding portion and the second winding portion are both electrically connected to the outermost conductive support column among the plurality of conductive support columns.

[0025] Optionally, the display panel further comprises: a plurality of initial signal lines, wherein the overall extension direction of the initial signal lines is parallel to the first direction; the plurality of initial signal lines correspond to a plurality of rows of the pixel driving circuits, and one initial signal line is electrically connected to a corresponding row of the pixel driving circuits;

[0026] The signal connection line includes a first target initial line and a second target initial line, and the first target initial line and the second target initial line are respectively: two adjacent initial signal lines located on both sides of the opening area in the second direction among the multiple initial signal lines.

[0027] Optionally, the first target initial line includes a first target initial line body and a third winding portion; the second target initial line includes a second target initial line body and a fourth winding portion;

[0028] Wherein, the extension directions of the first target initial line body and the second target initial line body are both parallel to the first direction, and are both distributed at least in the display area; the third winding portion and the fourth winding portion are located on both sides of the opening area in the second direction, and are both distributed in the transition area;

[0029] The third winding portion and the fourth winding portion are both electrically connected to the outermost conductive support column among the plurality of conductive support columns.

[0030] Optionally, for any one of the conductive support pillars, the conductive support pillar comprises: at least two ring electrodes stacked in layers;

[0031] The signal connection lines include: at least two types of signal lines corresponding to the at least two annular electrodes one by one; one type of the signal lines is electrically connected to the corresponding annular electrodes in the conductive support column;

[0032] The at least two types of signal lines are: at least two of a first power signal line, a data signal line and an initial signal line.

[0033] Optionally, the number of the conductive isolation columns and the number of the conductive support columns are both multiple, at least some of the conductive isolation columns correspond to at least some of the conductive support columns, and the orthographic projections of the conductive isolation columns on the substrate overlap with the orthographic projections of the corresponding conductive support columns on the substrate.

[0034] Optionally, the conductive support column comprises: at least two ring electrodes stacked in layers;

[0035] For the innermost conductive support column among the plurality of conductive support columns, the at least two annular electrodes in the conductive support column include: at least one first type electrode and at least one second type electrode;

[0036] Among them, the orthographic projection of the first type of electrodes in the conductive support column on the substrate overlaps with the orthographic projection of the corresponding conductive isolation column on the substrate; the orthographic projection of the second type of electrodes in the conductive support column on the substrate is staggered with the orthographic projection of the corresponding conductive isolation column on the substrate; and the second type of electrodes are closer to the opening area than the first type of electrodes.

[0037] Optionally, there are multiple conductive isolation columns, and the multiple conductive isolation columns include: multiple first-type conductive isolation columns and at least one second-type conductive isolation column; the display panel further includes: at least one inorganic insulating portion corresponding to the at least one second-type conductive isolation column;

[0038] The first type of conductive isolation column has a first isolation groove on a side facing the opening area and a side away from the opening area;

[0039] The first side of the second-type conductive isolation column has a second isolation groove, and the second side of the second-type conductive isolation column is covered by the corresponding inorganic insulating part; the first side of the second-type conductive isolation column is: one of the side of the second-type conductive isolation column facing the opening area and the side away from the opening area; the second side of the second-type conductive isolation column is: the other of the side of the second-type conductive isolation column facing the opening area and the side away from the opening area.

[0040] On the other hand, a display device is provided, including: a power supply component, and a display panel connected to the power supply component, wherein the display panel is any one of the display panels described above.

[0041] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0042] The signal connection line provided in the embodiment of the present application is electrically connected to the conductive support column, and a positive potential signal is applied to the conductive support column. A positive electric field can be formed in the transition zone of the display panel. The positive electric field and the positively charged metal ions repel each other, so that the positively charged metal ions in the polarizer are not easy to gather near the conductive isolation column. Even if the water oxygen invading the transition zone will undergo an electrolysis reaction under the action of the negatively charged first electrode layer, due to the small number of metal ions gathered near the conductive isolation column, it is not easy to form a strong alkaline environment with the hydrogen ions and hydroxide ions generated after the electrolysis reaction. Therefore, the encapsulation layer is not prone to holes or expansion and other undesirable phenomena, which ensures the encapsulation effect of the encapsulation layer on the organic light-emitting layer, and the reliability of the display panel is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments 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 creative work.

[0044] Figure 1 is a top view of a display panel provided in an embodiment of the present application;

[0045] Figure 2 yes Figure 1 The schematic diagram of the film layer structure of the display panel at AA' is shown;

[0046] Figure 3 yes Figure 1 A schematic diagram of the film layer structure of the display panel at BB' is shown;

[0047] Figure 4 is a schematic diagram of a film layer structure of a display panel provided in an embodiment of the present application;

[0048] Figure 5 is a partial enlarged view of a display panel provided in an embodiment of the present application;

[0049] Figure 6 is a schematic diagram of a film layer structure of another display panel provided in an embodiment of the present application;

[0050] Figure 7is a top view of a plurality of conductive support pillars and signal connection lines provided in an embodiment of the present application;

[0051] Figure 8 is a top view of another display panel provided in an embodiment of the present application;

[0052] Fig. 9 is another top view of multiple conductive support pillars and signal connection lines provided in an embodiment of the present application;

[0053] Fig.10 It is a top view of a plurality of conductive support pillars and signal connection lines provided in another embodiment of the present application;

[0054] Fig.11 is a schematic diagram of a film layer structure of another display panel provided in an embodiment of the present application;

[0055] Fig.12 It is a schematic diagram of a film layer structure of another display panel provided in an embodiment of the present application. DETAILED DESCRIPTION

[0056] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0057] The present application embodiment provides a display panel, please refer to Figure 1 , Figure 1 The display panel 000 may include an opening area 00a, a display area 00b located outside the opening area 00a, and a transition area 00c located between the opening area 00a and the display area 00b.

[0058] In the present application, for a display device 000 integrated with such a display panel, various sensor devices such as a camera and a light sensor in the display device can be placed on the back of the display panel 000, and the light-sensitive surface of the sensor device can face the opening area 00a of the display panel 000. For example, the light incident surface of the camera in the display device can face the opening area 00a of the display panel 000, so that the ambient light can enter the light incident surface of the camera after passing through the opening area 00a of the display panel 000, so that the camera can normally acquire an image. Here, the back of the display panel 000 refers to: the side opposite to the display surface of the display panel 000.

[0059] Please refer to Figure 2 and Figure 3 , Figure 2 yes Figure 1 The schematic diagram of the film structure of the display panel at AA' is shown. Figure 3 yes Figure 1The display panel 000 comprises a substrate 100 , and a light emitting device 200 , a conductive support column 300 , a conductive isolation column 400 and a signal connection line 500 located on one side of the substrate 100 .

[0060] There are multiple light emitting devices 200 in the display panel 000 , and the multiple light emitting devices 200 can be distributed in the display area 00 b .

[0061] like Figure 3 As shown, the display panel 000 may further include a pixel definition layer 600. The pixel definition layer 600 is distributed in the display area 00b, and the pixel definition layer 600 may have a plurality of pixel openings K corresponding to the plurality of light-emitting devices 200, and each light-emitting device 200 may be located in the corresponding pixel opening K. The display panel 000 may further include: a first electrode layer 201 located on the side of the pixel definition layer 600 facing the substrate 100, and an organic light-emitting layer 202 and a second electrode layer 203 located on the side of the pixel definition layer 600 facing away from the substrate 100 and stacked. The organic light-emitting layer 202 is closer to the substrate 100 than the second electrode layer 203. Among them, the first electrode layer 201 includes a plurality of first electrodes 201a corresponding to the plurality of pixel openings K.

[0062] It should be noted that the portion of the organic light-emitting layer 202 distributed in each pixel opening k may be in contact with the corresponding first electrode 201a. In this case, for any pixel opening K, the first electrode 201a corresponding to the pixel opening K, and the portion of the organic light-emitting layer 202 and the second electrode layer 203 distributed in the pixel opening K may constitute a light-emitting device 200.

[0063] In the present application, the display panel 000 may further include: an encapsulation layer 700. Here, the encapsulation layer 700 may be located on the side of the second electrode layer 203 away from the substrate 100, and the encapsulation layer 700 may be used to encapsulate the light-emitting device 200 to prevent water and oxygen in the external environment from corroding the organic light-emitting layer 202 in the light-emitting device 200 from the display side of the display panel 000.

[0064] The conductive support column 300 and the conductive isolation column 400 in the display panel 000 are both distributed in the transition area 00c and are both distributed around the opening area 00a. The conductive isolation column 400 is located on the side of the conductive support column 300 away from the substrate 100, and the conductive isolation column 400 is insulated from the conductive support column 300. Here, there are multiple conductive isolation columns 400, and the conductive isolation column 400 in the display panel 000 has a partition groove U on the side facing the opening area 00a and the side facing away from the opening area 00a.

[0065] It should be noted that the organic light-emitting layer 202 and the second electrode layer 203 are usually formed by whole-layer evaporation using an evaporation process. Therefore, the organic light-emitting layer 202 and the second electrode layer 203 can be located in either the display area 00b or the transition area 00c. Similarly, the encapsulation layer 700 can be located in either the display area 00b or the transition area 00c to prevent water and oxygen in the external environment from corroding the organic light-emitting layer 202 from the display side of the display panel 000.

[0066] like Figure 2 As shown, the portion of the organic light-emitting layer 202 and the second electrode layer 203 distributed in the transition region 00c is located on the side of the conductive isolation column 400 away from the substrate 100. Since the conductive isolation column 400 has a partition groove U on both the side facing the opening region 00a and the side facing away from the opening region 00a, the organic light-emitting layer 202 and the second electrode layer 203 located in the transition region 00c can be disconnected by the partition groove U. That is, the organic light-emitting layer 202 and the second electrode layer 203 located in the transition region 00c are no longer a film layer structure that is continuously arranged. In this way, water and oxygen in the external environment are not easy to penetrate into the interior of the display panel 000 through the opening region 00a of the display panel 000 along the organic light-emitting layer 202.

[0067] Although the provision of multiple conductive isolation columns 400 can ensure that the portion of the organic light-emitting layer 202 distributed in the transition area 00c is no longer a continuously provided film structure, so that the portion of the organic light-emitting layer 202 distributed in the transition area 00c is not easy to absorb water and oxygen from the external environment that intrudes from the opening area 00a of the display panel 000. However, a small amount of water and oxygen will still intrude into the transition area 00c through the opening area 00a of the display panel 000.

[0068] In addition, although the second electrode layer 203 located in the transition region 00c can be disconnected by the partition groove U, since the conductive isolation column 400 is conductive, the portion of the second electrode layer 203 located between two adjacent conductive isolation column portions 400 can extend into the partition groove U of the conductive isolation column portion 400 to be electrically connected to the conductive isolation column portion 400. Therefore, the portions of the second electrode layer 203 located in the transition region 00c are electrically connected to each other. Here, the second electrode layer 203 can be a cathode electrode layer, that is, the second electrode layer 203 is negatively charged.

[0069] For this reason, when the portion of the second electrode layer 203 located in the transition zone 00c is negatively charged, and when water and oxygen in the external environment intrude into the transition zone 00c through the opening area 00a of the display panel 000, the water and oxygen intruding into the transition zone 00c will undergo electrolysis reaction under the action of the negatively charged second electrode layer 203 to generate hydrogen ions and hydroxide ions. In addition, since a polarizer for reducing the reflectivity of ambient light is usually provided on the light-emitting side of the display panel 000, and the polarizer is usually made of metal material, the positively charged metal ions (for example, potassium ions) in the polarizer are easily attracted by the negatively charged second electrode layer 203, causing the positively charged metal ions to gather near the conductive isolation column 400. Metal ions are very easy to combine with hydroxide ions, causing the portion of the encapsulation layer 700 located in the transition zone 00c to be in a strong alkaline environment formed by the combination of metal ions and hydroxide ions, which will react with the silicon oxide in the encapsulation layer 700, thereby causing the encapsulation layer 700 to have holes or expansion and other undesirable phenomena, affecting the encapsulation effect of the encapsulation layer 700 on the organic light-emitting layer 202, resulting in low reliability of the display panel 000.

[0070] In the embodiment of the present application, the signal connection line 500 in the display panel 000 may be electrically connected to the conductive support column 300 , and the signal connection line 500 is used to apply a positive potential signal to the conductive support column 300 .

[0071] When the conductive support column 300 is positively charged, a positive electric field can be formed in the transition region 00c in the display panel 000. The positive electric field and the positively charged metal ions repel each other, so that the positively charged metal ions in the polarizer are not easy to gather near the conductive isolation column 400. Even if the water oxygen that invades the transition region 00c will undergo an electrolysis reaction under the action of the negatively charged second electrode layer 203, since there are fewer metal ions gathered near the conductive isolation column 400, it is not easy to form a strong alkaline environment with the hydrogen ions and hydroxide ions generated after the electrolysis reaction. Therefore, the encapsulation layer 700 is not prone to holes or expansion and other undesirable phenomena, which ensures the encapsulation effect of the encapsulation layer 700 on the organic light-emitting layer 202, and the reliability of the display panel 000 is relatively high.

[0072] In summary, the embodiment of the present application provides a display panel, including: a substrate, and a light-emitting device located on one side of the substrate, a conductive support column, a conductive isolation column, a signal connection line, a first electrode layer and a polarizer. Among them, the conductive support column and the conductive isolation column are located in the transition zone. The signal connection line is electrically connected to the conductive support column, and a positive potential signal is applied to the conductive support column. A positive electric field can be formed in the transition zone of the display panel. The positive electric field and the positively charged metal ions repel each other, so that the positively charged metal ions in the polarizer are not easy to gather near the conductive isolation column. Even if the water oxygen invading the transition zone will undergo an electrolysis reaction under the action of the negatively charged first electrode layer, due to the small number of metal ions gathered near the conductive isolation column, it is not easy to form a strong alkaline environment with the hydrogen ions and hydroxide ions generated after the electrolysis reaction. Therefore, the encapsulation layer is not prone to undesirable phenomena such as holes or expansion, which ensures the encapsulation effect of the encapsulation layer on the organic light-emitting layer, and the reliability of the display panel is high.

[0073] In the present application embodiment, Figure 3 As shown, the display panel 000 may further include: a plurality of pixel driving circuits 800. Here, the plurality of pixel driving circuits 800 may be arranged in a plurality of columns along the first direction, and in a plurality of rows along the second direction. The plurality of pixel driving circuits 800 are all distributed in the display area 00b of the display panel, and the plurality of pixel driving circuits 800 are located on the side of the plurality of light-emitting devices 200 facing the substrate 100, and the plurality of pixel driving circuits 800 are electrically connected to the plurality of light-emitting devices 200 accordingly, so that the light-emitting devices 200 emit light under the driving action of the corresponding pixel driving circuits 800.

[0074] The pixel driving circuit 800 in the display panel 000 may include at least two transistors and at least one storage capacitor. Among them, the transistor in the pixel driving circuit 800 may include: an active layer 810, a gate 820, a first pole 830 and a second pole 840. One of the first pole 830 and the second pole 840 may be a source in the transistor, and the other of the first pole 830 and the second pole 840 may be a drain in the transistor. And the first pole 830 and the second pole 840 in the pixel driving circuit 800 are arranged in the same layer and made of the same material. The first pole 830 of a transistor in the pixel driving circuit 800 may be electrically connected to the first electrode 201a of the light-emitting device 200 corresponding to the pixel driving circuit 800. The storage capacitor in the pixel driving circuit 800 may include: a first capacitor electrode 850 and a second capacitor electrode 860 arranged opposite to each other. The second capacitor electrode 860 may be arranged in the same layer as the gate 820 and made of the same material. The pixel driving circuit 800 may further include a metal light shielding layer 870, which is located on the side of the transistor facing the substrate 100, and the orthographic projection of the channel region in the active layer 810 of the transistor on the substrate 100 is located within the orthographic projection of the metal light shielding layer 870 on the substrate 100. Here, the metal light shielding layer 870 is used to block light incident from the outside to the channel region in the active layer 810, prevent the active layer 810 from being affected by external light, and improve the stability of the transistor.

[0075] It should be noted that two structures in the present application are arranged in the same layer and have the same materials, which means that the two structures are the same film layer and can be formed simultaneously by the same patterning process. For example, the film layer where the first pole 830 in the pixel driving circuit 800 is located and the film layer where the second pole 840 in the pixel driving circuit 800 is located are the same conductive layer, and the first pole 830 and the second pole 840 can be formed by a one-side patterning process. In this way, in the preparation process of the display panel 000, the first pole 830 and the second pole 840 can be obtained by using only one patterning process, which simplifies the preparation process of the display panel 000.

[0076] It should also be noted that the display panel 000 also includes a plurality of insulating functional layers 900 stacked in layers. The insulating functional layers 900 may include a buffer layer 910, a first gate insulating layer 920, a second gate insulating layer 930, an interlayer dielectric layer 940, a passivation layer 950, and an organic planar layer 960. The buffer layer 910 is located between the metal light shielding layer 870 and the active layer 810; the first gate insulating layer 920 is located between the active layer 810 and the gate 820; the second gate insulating layer 930 is located between the first capacitor electrode 850 and the second capacitor electrode 860; the interlayer dielectric layer 940 is located between the second capacitor electrode 860 and the second electrode 840; the passivation layer 950 and the organic planar layer 960 are located on the side of the pixel driving circuit 800 away from the substrate 100, and the passivation layer 940 is closer to the substrate 100 than the organic planar layer 950.

[0077] In the present application, please refer to Figure 4 , Figure 4 Schematic diagram of a film structure of a display panel provided in an embodiment of the present application. The multiple conductive isolation columns 400 in the display panel 000 include: multiple first-type conductive isolation columns 410 and at least one second-type conductive isolation column 420. In this case, the display panel 000 may also include: at least one inorganic insulating portion 1000 corresponding to the at least one second-type conductive isolation column 420.

[0078] The first type of conductive isolation column 410 in the display panel 000 has a first partition groove U1 on both the side facing the opening area 00a and the side facing away from the opening area 00a. The first side of the second type of conductive isolation column 420 in the display panel 000 has a second partition groove U2, and the second side of the second type of conductive isolation column 420 is covered by the corresponding inorganic insulating part 1000.

[0079] It should be noted that the first side of the second type of conductive isolation column 420 is: one of the side of the second type of conductive isolation column 420 facing the opening area 00a and the side away from the opening area 00a; the second side of the second type of conductive isolation column 420 is: the other of the side of the second type of conductive isolation column 420 facing the opening area 00a and the side away from the opening area 00a. For example, Figure 4 As shown, the first side of the second type conductive isolation column 420 is: the side of the second type conductive isolation column 420 facing away from the hole area 00a; the second side of the second type conductive isolation column 420 is: the side of the second type conductive isolation column 420 facing the opening area 00a.

[0080] like Figure 4As shown, the portion of the organic light-emitting layer 202 and the second electrode layer 203 distributed in the transition region 00c is located on the side of the conductive isolation column 400 away from the substrate 100. Since the first type of conductive isolation column 410 has a first partition groove U1 on the side facing the opening region 00a and the side facing away from the opening region 00a, and the first side of the second type of conductive isolation column 420 has a second partition groove U2. Therefore, the organic light-emitting layer 202 and the second electrode layer 203 located in the transition region 00c are both disconnected by the first partition groove U1 and the second partition groove U2. That is, the organic light-emitting layer 202 and the second electrode layer 203 located in the transition region 00c are no longer a film layer structure that is continuously arranged. In this way, water and oxygen in the external environment are not easy to penetrate into the interior of the display panel 000 through the opening region 00a of the display panel 000 along the organic light-emitting layer 202.

[0081] In addition, although the second-type conductive isolation column 420 is conductive, the second side of the second-type conductive isolation column 420 is covered by the corresponding inorganic insulating portion 1000, and the second electrode layer 203 located in the transition area 00c can be disconnected by the second isolation groove U2 on the first side of the second-type conductive isolation column 420, so that the second electrode layer 203 located on the side of the second-type conductive isolation column 420 close to the opening area 00a is insulated from the second electrode layer 203 located on the side of the second-type conductive isolation column 420 away from the opening area 00a.

[0082] In this case, it can be ensured that the portion of the second electrode layer 203 located on the side of the second type of conductive isolation column 420 facing the opening area 00a is not charged, thereby effectively avoiding the electrolysis reaction of water and oxygen invading the transition area 00c, ensuring that the encapsulation effect of the encapsulation layer 700 in the display panel 000 is better, and thus effectively improving the reliability of the display panel 000.

[0083] It should be noted that the second type of conductive spacer 420 is closer to the display area 00b of the display panel 000 than at least part of the first type of conductive spacer 410. In this way, most of the second electrode layer 203 located in the transition area 00c is not charged, further reducing the possibility of electrolysis reaction of water and oxygen intruding into the transition area 00c, ensuring a good encapsulation effect of the encapsulation layer 700 in the display panel 000, thereby effectively improving the reliability of the display panel 000.

[0084] In the present application, please refer to Figure 5 , Figure 5 The conductive spacer 400 in the display panel 000 includes a first sub-conductive spacer 410 , a second sub-conductive spacer 420 and a third sub-conductive spacer 430 stacked in a direction away from the substrate 100 .

[0085] In the process of forming the conductive spacer 400 in the display panel 000, the partition grooves of the conductive spacer 400 can all be formed by transition etching of the conductive spacer 400. For example, the material of the first sub-conductive spacer 410 and the third sub-conductive spacer 430 can be titanium, and the material of the second sub-conductive spacer 420 can be aluminum. In this way, in the process of etching the structure for forming the conductive spacer 400, the etching speed of the first sub-conductive spacer 410 and the third sub-conductive spacer 430 is slow, while the etching speed of the second sub-conductive spacer 420 is fast. In this way, a partition groove can be formed between the first sub-conductive spacer 410 and the third sub-conductive spacer 430.

[0086] It should be noted that since the second side of the second type of conductive isolation column 420 is covered by the corresponding inorganic insulating part 1000, the inorganic insulating part 1000 can protect the second side of the second type of conductive isolation column 420, so that the second side of the second type of conductive isolation column 420 will not be etched, and thus no isolation groove will be formed on the second side of the second type of conductive isolation column 420.

[0087] It should also be noted that the conductive isolation column 400 can be disposed in the same layer and made of the same material as the first electrode 830 and the second electrode 840 in the pixel driving circuit 800, and the inorganic insulating portion 1000 can be disposed in the same layer and made of the same material as the passivation layer 950 in the pixel driving circuit 800. In this case, the first electrode 830 and the second electrode 840 in the pixel driving circuit 800 also include a three-layer electrode structure, and the three-layer electrode structure belongs to the same conductive layer as the first sub-conductive isolation column 410, the second sub-conductive isolation column 420, and the third sub-conductive isolation column 430 of the conductive isolation column 400.

[0088] In the present application embodiment, Figure 4 As shown, the display panel 000 may further include an annular retaining wall 1100. The annular retaining wall 1100 may be distributed around the opening area 00a of the display panel 000, and conductive isolation columns 400 are distributed on both the side of the annular retaining wall close to the opening area 00c and the side away from the opening area 00c.

[0089] It should be noted that the encapsulation layer 700 in the display panel 000 may include: a first inorganic encapsulation layer 710, an organic encapsulation layer 720, and a second inorganic encapsulation layer 730. The first inorganic encapsulation layer 710 in the encapsulation layer 700 may be closer to the substrate 100, and the organic encapsulation layer 720 may be located between the first inorganic encapsulation layer 710 and the second inorganic encapsulation layer 730. In this way, the encapsulation effect of the encapsulation layer 700 on the organic light-emitting layer 202 can be ensured.

[0090] In this case, the annular retaining wall 1100 in the display panel 000 can block the organic encapsulation layer 720 in the encapsulation layer 700, preventing the organic encapsulation layer 720 from overflowing due to its strong fluidity during the formation of the organic encapsulation layer 720, so that the organic encapsulation layer 720 in the encapsulation layer 700 is distributed in the area outside the annular retaining wall 1100, and will not enter the area surrounded by the annular retaining wall 1100. In this way, it can be ensured that the encapsulation layer 700 can effectively encapsulate the organic light-emitting layer 202 located in the display area 00b.

[0091] It should also be noted that the height of the annular retaining wall 1100 can be increased to increase the gap between the two sides of the annular retaining wall 1100, so that the second electrode layer 203 is completely disconnected under the action of the annular retaining wall 1100. In this way, it can be ensured that the portion of the second electrode layer 203 located on the side of the annular retaining wall 1100 facing the opening area 00a is not charged, thereby effectively avoiding the phenomenon of electrolysis reaction of water and oxygen intruding into the transition area 00c, ensuring a good encapsulation effect of the encapsulation layer 700 in the display panel 000, and further effectively improving the reliability of the display panel 000.

[0092] In the present application, please refer to Figure 6 and Figure 7 , Figure 6 is a schematic diagram of a film layer structure of another display panel provided in an embodiment of the present application, Figure 7 1 is a top view of a plurality of conductive support columns and signal connection lines provided in an embodiment of the present application. The number of conductive support columns 300 in the display panel 000 is multiple, the multiple conductive support columns 300 are nested and distributed, and two adjacent conductive support columns 300 are electrically connected. For example, every two adjacent conductive support columns 300 in the multiple conductive support columns 300 can be electrically connected.

[0093] At least part of the conductive support pillars 300 in the display panel 000 may correspond to at least part of the conductive isolation pillars 400, and the orthographic projection of the conductive isolation pillars 400 on the substrate 100 overlaps with the orthographic projection of the corresponding conductive support pillars 300 on the substrate 100. At least one conductive support pillar 300 in the display panel 000 may correspond to the annular retaining wall 1100, and the orthographic projection of the annular retaining wall 1100 on the substrate 100 overlaps with the orthographic projection of the corresponding conductive support pillar 300 on the substrate 100. In this way, the distance between the annular retaining wall 1100 and the substrate 100 increases, thereby increasing the step difference on both sides of the annular retaining wall 1100, so that the second electrode layer 203 is completely disconnected under the action of the annular retaining wall 1100. It can ensure that the portion of the second electrode layer 203 located on the side of the annular retaining wall 1100 facing the opening area 00a is not charged, thereby effectively avoiding the electrolysis reaction of water and oxygen invading the transition area 00c, ensuring that the packaging effect of the packaging layer 700 in the display panel 000 is better, and thus effectively improving the reliability of the display panel 000.

[0094] The signal connection line 500 is electrically connected to the outermost conductive support column 300 among the plurality of conductive support columns 300. Here, since every two adjacent conductive support columns 300 among the plurality of conductive support columns 300 can be electrically connected, after the outermost conductive support column 300 is electrically connected to the signal connection line 500, it can be ensured that each conductive support column 300 can transmit the positive potential signal applied by the signal connection line 500, so that a strong positive electric field can be formed in the transition region 00c, and the mutual repulsion between the positive electric field and the positively charged metal ions can be enhanced, so that the positively charged metal ions in the polarizer are not easy to gather near the conductive isolation column 400.

[0095] In addition, for any conductive support column 300, the conductive support column 300 may include a ring electrode 310, or the conductive support column 300 may include: at least two ring electrodes 310 stacked, and an insulating layer is provided between two adjacent ring electrodes 310 in the same conductive support column 300. Here, the ring electrode 310 in the conductive support column 300 can be provided in the same layer as the gate 820, the first capacitor electrode 850 or the metal light shielding layer 870 and the material is the same.

[0096] In the case where the conductive support column 300 includes at least two annular electrodes 310, the at least two annular electrodes 310 in the same conductive support column 300 can be connected to the same positive potential signal or different positive potential signals. In this way, by providing at least two annular electrodes 310 in the same conductive support column 300 and allowing these annular electrodes 310 to be connected to the same or different positive potential signals, the strength of the positive electric field that can be formed in the transition region 00c can be further improved.

[0097] It should be noted that if Figure 6 As shown, when all the conductive support pillars 300 in the display panel 000 are connected to the same positive potential signal, the signal transmission line 500 can be electrically connected to a certain annular electrode 310 in the outermost conductive support pillar 300 among the multiple conductive support pillars 300, and this annular electrode 310 can be connected to other annular electrodes 310 in the outermost conductive support pillar 300 among the multiple conductive support pillars 300.

[0098] In the embodiment of the present application, each pixel driving circuit 800 in the display panel 000 is connected to a plurality of types of signal lines to ensure that the pixel driving circuit 800 can drive the light emitting device 200 to emit light under the control of these signal lines. And the signals transmitted on some of these signal lines are positively charged, and the signals transmitted on some of the signal lines are negatively charged. Therefore, in order to simplify the structure of the display panel 000, the signal lines connected to the pixel driving circuit 800 and carrying positive electricity can be reused as: the signal connection line 500 used to transmit the positive potential signal in the present application. That is, the signal transmission line 500 can be electrically connected to at least part of the pixel driving circuit 800 in the display panel 000. And because there are many types of signal lines connected to the pixel driving circuit 800 and carrying positive electricity, for example, a first power signal line, a data signal line, and an initial signal line. Therefore, the embodiment of the present application will be described by taking the following three possible implementation methods as examples.

[0099] The first possible implementation is Figure 7 and Figure 8 As shown, Figure 8 000 is a top view of another display panel provided by an embodiment of the present application. The display panel 000 also includes: a first power signal line 510, the first power signal line 510 is electrically connected to the pixel driving circuit 800, and is used to apply a high-level power signal to the pixel driving circuit 800. Since the high-level power signal belongs to a positive potential signal, the signal connection line 500 may include at least part of the first power signal line 510. Here, at least part of the first power signal line 510 may be electrically connected to the outermost conductive support column 300 among the multiple conductive support columns 300. The first power signal line 510 may provide a high-level power signal to the outermost conductive support column 300 among the multiple conductive support columns 300. In this way, it can be ensured that a positive electric field can be formed in the transition region 00c.

[0100] Optionally, the first power signal line 510 in the display panel 000 may include: a plurality of first sub-power lines 511 extending along the first direction x, and a plurality of second sub-power lines 512 extending along the second direction y. The first sub-power lines 511 and the second sub-power lines 512 are electrically connected at the intersection, so that the first sub-power lines 511 and the second sub-power lines 512 can apply the same potential to the pixel driving circuit 800 at various positions in the display panel 000, ensuring a better display effect of the display panel 000.

[0101] In this case, if Figure 7 As shown, the signal connection line 500 in the display panel 000 includes: two adjacent second sub-power lines 512 located on both sides of the opening area 00a in the first direction x, and / or, two adjacent first sub-power lines 511 located on both sides of the opening area 00a in the second direction y.

[0102] Here, two adjacent second sub-power lines 512 located on both sides of the opening area 00a in the first direction x may be electrically connected to the outermost conductive support pillar 300 among the plurality of conductive support pillars 300. And / or, two adjacent first sub-power lines 511 located on both sides of the opening area 00a in the second direction y may be electrically connected to the outermost conductive support pillar 300 among the plurality of conductive support pillars 300.

[0103] In this case, by simultaneously applying a high-level power signal to the outermost conductive support column 300 among the multiple conductive support columns 300 through two adjacent second sub-power lines 512 located on both sides of the opening area 00a in the first direction x and two adjacent first sub-power lines 511 located on both sides of the opening area 00a in the second direction y, a strong positive electric field can be formed in the transition area 00c.

[0104] It should be noted that the first sub-power line 511 and the second sub-power line 512 in the first power signal line 510 are arranged in different layers. The first sub-power line 511 can be arranged in the same layer and made of the same material as the gate electrode 820, the first capacitor electrode 850 and / or the metal light shielding layer 870. The second sub-power line 512 can be arranged in the same layer and made of the same material as the first electrode 830 and / or the metal light shielding layer 870.

[0105] It should also be noted that the two structures in the present application are arranged in different layers, which means that the film layer where the two structures are located is not the same film layer, and an insulating layer may be arranged between the two film layers. For example, the film layer where the first sub-power line 511 in the first power signal line 510 is located and the film layer where the second sub-power line 512 in the first power signal line 510 is located are not the same conductive layer, and an insulating layer is arranged between the two conductive layers.

[0106] The second possible implementation is Figure 8 and Fig. 9 As shown, Fig. 9 000 is another top view of multiple conductive support pillars and signal connection lines provided in an embodiment of the present application. The display panel 000 also includes: multiple data signal lines 520. The overall extension direction of the data signal lines 520 in the display panel 000 is parallel to the second direction y, and the multiple data signal lines 520 correspond to multiple columns of pixel driving circuits 800, and one data signal line 520 is electrically connected to a corresponding column of pixel driving circuits 800, and is used to apply a data signal to each pixel driving circuit 800 in the corresponding column of pixel driving circuits 800. Since the data signal is a positive potential signal, the signal connection line 500 in the display panel 000 includes a target data line 521.

[0107] The target data line 521 is a data signal line 520 that is closest to the opening area 00a in the first direction x among the multiple data signal lines 520. Here, the target data line 521 can be electrically connected to the outermost conductive support column 300 among the multiple conductive support columns 300, so as to apply a data signal to the conductive support column 300. In this way, a positive electric field can be formed in the transition area 00c.

[0108] Optionally, the signal connection line 500 in the display panel 000 may further include: a virtual data line 522, the overall extension direction of the virtual data line 522 is parallel to the second direction y, and the virtual data line 522 is separated from the pixel driving circuit 800. That is, the virtual data line 522 is not connected to the pixel driving circuit 800. Here, the virtual data line 522 is electrically connected to the outermost conductive support column 300 among the multiple conductive support columns 300. In this way, the virtual data line 522 will not provide a data signal to the pixel driving circuit 800, but will provide a data signal to the outermost conductive support column 300 among the multiple conductive support columns 300.

[0109] It should be noted that after the data signal is simultaneously applied to the outermost conductive support pillars 300 among the plurality of conductive support pillars 300 through the target data line 521 and the dummy data line 522 , a strong positive electric field can be formed in the transition region 00c.

[0110] In the present application, when the signal connection line 500 includes a target data line 521 and a dummy data line 522 , in the first direction x, the opening area 00a in the display panel 000 is located between a portion of the target data line 521 and a portion of the dummy data line 522 .

[0111] It should be noted that the target data line 521 in the display panel 000 includes: a connected target data line body 521a and a first winding portion 521b, and the virtual data line 522 in the display panel 000 includes: a connected virtual data line body 522a and a second winding portion 522b.

[0112] Among them, the extension directions of the target data line body 521a and the virtual data line body 522a are parallel to the second direction y, and are both distributed at least in the display area 00b; the first winding portion 521b and the second winding portion 522b are located on both sides of the opening area 00a in the first direction x, and are both distributed in the transition area 00c.

[0113] In this case, the first winding portion 521b and the second winding portion 522b are both electrically connected to the outermost conductive support column 300 among the multiple conductive support columns 300, and a strong positive electric field can be formed in the transition zone 00c, thereby enhancing the mutual repulsion between the positive electric field and the positively charged metal ions, so that the positively charged metal ions in the polarizer are not easily gathered near the conductive isolation column 400.

[0114] It should also be noted that the target data line 521 and the virtual data line 522 can be electrically connected to two different output pins in the driver chip respectively, and the two output pins apply the same voltage signal to the target data line 521 and the virtual data line 522, thereby avoiding the target data line 521 and the virtual data line 522 from short-circuiting due to the different voltage signals applied to them after the target data line 521 and the virtual data line 522 are electrically connected to the outermost conductive support column 300, thereby affecting the target data line 521 from applying data signals to the corresponding column of pixel driving circuits 800, resulting in poor display effect of the display panel.

[0115] Alternatively, the target data line 521 and the dummy data line 522 may be electrically connected to the same output pin in the driver chip, in which case the target data line body 521a and the dummy data line body 522a may be connected. Exemplarily, the display panel 000 further includes a non-display area, and the target data line body 521a and the dummy data line body 522a may be connected in the non-display area and then electrically connected to the same output pin in the driver chip.

[0116] In the present application, the data signal line 520 in the display panel 000 can be disposed in the same layer and made of the same material as the first electrode 830 .

[0117] For the third possible implementation, please refer to Figure 8 and Fig.10 , Fig.10It is another top view of multiple conductive support pillars and signal connection lines provided in an embodiment of the present application. The display panel 000 also includes: multiple initial signal lines 530. The overall extension direction of the initial signal lines 530 is parallel to the first direction x, and the multiple initial signal lines 530 correspond to multiple rows of pixel driving circuits 800. One initial signal line 530 is electrically connected to a corresponding row of pixel driving circuits 800, and is used to provide the same initial signal to each pixel driving circuit 800. Since the initial signal is a positive potential signal, the signal connection line 500 in the display panel 000 includes a first target initial line 531 and a second target initial line 532.

[0118] The first target initial line 531 and the second target initial line 532 are respectively: two adjacent initial signal lines 530 located on both sides of the opening area 00a in the second direction y among the multiple initial signal lines 530, and the first target initial line 531 and the second target initial line 532 are both connected to the outermost conductive support column 300 among the multiple conductive support columns 300, for applying an initial signal to the conductive support column 300. In this way, it can be ensured that a positive electric field can be formed in the transition area 00c.

[0119] It should be noted that after the initial signal is simultaneously applied to the outermost conductive support pillars 300 among the plurality of conductive support pillars 300 through the first target initial line 531 and the second target initial line 532, a strong positive electric field can be formed in the transition area 00c.

[0120] Optionally, the first target initial wire 531 includes a first target initial wire body 531 a and a third winding portion 531 b , and the second target initial wire 532 includes a second target initial wire body 532 a and a fourth winding portion 532 b .

[0121] The extension directions of the first target initial line body 531a and the second target initial line body 532a are both parallel to the first direction x, and are both distributed at least in the display area 00b. The third winding portion 531b and the fourth winding portion 532b are located on both sides of the opening area 00a in the second direction y, and are both distributed in the transition area 00c.

[0122] In this case, the third winding portion 531b and the fourth winding portion 532b are both electrically connected to the outermost conductive support column 300 among the multiple conductive support columns 300, and a strong positive electric field can be formed in the transition zone 00c, thereby enhancing the mutual repulsion between the positive electric field and the positively charged metal ions, so that the positively charged metal ions in the polarizer are not easily gathered near the conductive isolation column 400.

[0123] It should also be noted that the initial signal line 530 in the display panel 000 can be provided in the same layer and made of the same material as the gate electrode 820 or the first capacitor electrode 850 .

[0124] The above embodiments are schematically described by taking the example of the conductive support column 300 being electrically connected to one type of signal line. In other embodiments, the conductive support column 300 can be electrically connected to multiple types of signal lines at the same time. In this case, the conductive support column 300 in the display panel 000 includes at least two annular electrodes 310. And the signal connection line 500 in the display panel 000 includes: at least two types of signal lines corresponding to the at least two annular electrodes 310, and each type of signal line is electrically connected to the corresponding annular electrode 310 in the conductive support column 300, and is used to apply a positive potential signal to the corresponding annular electrode 310 in the conductive support column 300.

[0125] Among them, at least two types of signal lines are: at least two of the first power signal line 510, the data signal line 520 and the initial signal line 530. Here, the connection mode between the annular electrode 310 in the conductive support column 300 and the corresponding first power signal line 510, the data signal line 520 or the initial signal line 530 and the distribution of the three types of signal lines can refer to the corresponding parts in the above three cases, and the embodiments of the present application will not be repeated here.

[0126] For example, please refer to Fig.11 , Fig.11 3 is a schematic diagram of a film structure of another display panel provided by an embodiment of the present application, wherein the conductive support column 300 includes three annular electrodes 310, and the three annular electrodes 310 in the outermost conductive support column 300 are respectively electrically connected to the first power signal line 510, the data signal line 520 and the initial signal line 530. In this way, the first power signal line 510, the data signal line 520 and the initial signal line 530 respectively apply positive potential signals to the corresponding annular electrodes 310, and the positive electric field formed in the transition area 00c in the display panel 000 is relatively strong, which enhances the mutual repulsion between the positive electric field and the positively charged metal ions, so that the positively charged metal ions in the polarizer are not easy to gather near the conductive isolation column 400.

[0127] It should be noted that, when the conductive support column 300 includes three annular electrodes 310, the three annular electrodes 310 may be respectively: a first annular electrode 311, a second annular electrode 312, and a third annular electrode 313. The first annular electrode 311, the second annular electrode 312, and the third annular electrode 313 may be arranged in sequence in a direction away from the substrate 100.

[0128] Among them, the first annular electrode 311 can be set in the same layer and material as the metal shading layer 870; the second annular electrode 311 can be set normally with the gate 820 and material; the third annular electrode 313 can be set in the same layer and material as the first capacitor electrode 850.

[0129] Here, for two adjacent conductive support columns 300, the first ring electrode 311 in one conductive support column 300 can be connected to the first ring electrode 311 in the other conductive support column 300 through a first connecting electrode set in the same layer; the second ring electrode 312 in one conductive support column 300 can be connected to the second ring electrode 312 in the other conductive support column 300 through a second connecting electrode set in the same layer; the third ring electrode 313 in one conductive support column 300 can be connected to the third ring electrode 313 in the other conductive support column 300 through a third connecting electrode set in the same layer.

[0130] In the present application, please refer to Fig.12 , Fig.12 3 is a schematic diagram of a film layer structure of another display panel provided in an embodiment of the present application. In the case where the conductive support column 300 in the display panel 000 includes at least two stacked annular electrodes 310, for the innermost conductive support column 300 among the plurality of conductive support columns 300, the at least two annular electrodes 310 in the conductive support column 300 include: at least one first type electrode 311 and at least one second type electrode 312.

[0131] The orthographic projection of the first type of electrode 311 in the conductive support column 300 on the substrate 100 overlaps with the orthographic projection of the corresponding conductive isolation column 300 on the substrate 100; the orthographic projection of the second type of electrode 312 in the conductive support column 300 on the substrate 100 is staggered with the orthographic projection of the corresponding conductive isolation column 300 on the substrate 100; and the second type of electrode 312 is closer to the opening area 00a than the first type of electrode 311. For example, Fig.12 As shown, in the innermost conductive support pillar 300 among the plurality of conductive support pillars 300 , the second type electrode 312 of the conductive support pillar 300 is closer to the substrate 100 than the first type electrode 311 .

[0132] In this way, by staggering the design of the first type of electrode 311 and the second type of electrode 312, the step difference on the side of the transition area 00c close to the opening area 00a in the display panel 000 is smaller, so that the encapsulation layer 700 close to the opening area 00a is relatively flat, reducing the risk of the encapsulation layer 700 close to the opening area 00a falling off due to the large step difference, effectively ensuring the encapsulation effect of the encapsulation layer 700 on the organic light-emitting layer 202, and the reliability of the display panel 000 is relatively high.

[0133] It should be noted that, when the conductive support column 300 in the display panel 000 includes three stacked annular electrodes 310, each two adjacent annular electrodes 310 in the conductive support column 300 can be staggered, so that the encapsulation layer 700 near the opening area 00a is relatively flat, reducing the risk of the encapsulation layer 700 near the opening area 00a falling off due to the large step difference, effectively ensuring the encapsulation effect of the encapsulation layer 700 on the organic light-emitting layer 202, and the reliability of the display panel 000 is relatively high.

[0134] In summary, the embodiment of the present application provides a display panel, including: a substrate, and a light-emitting device located on one side of the substrate, a conductive support column, a conductive isolation column, a signal connection line, a first electrode layer and a polarizer. Among them, the conductive support column and the conductive isolation column are located in the transition zone. The signal connection line is electrically connected to the conductive support column, and a positive potential signal is applied to the conductive support column. A positive electric field can be formed in the transition zone of the display panel. The positive electric field and the positively charged metal ions repel each other, so that the positively charged metal ions in the polarizer are not easy to gather near the conductive isolation column. Even if the water oxygen invading the transition zone will undergo an electrolysis reaction under the action of the negatively charged first electrode layer, due to the small number of metal ions gathered near the conductive isolation column, it is not easy to form a strong alkaline environment with the hydrogen ions and hydroxide ions generated after the electrolysis reaction. Therefore, the encapsulation layer is not prone to undesirable phenomena such as holes or expansion, which ensures the encapsulation effect of the encapsulation layer on the organic light-emitting layer, and the reliability of the display panel is high.

[0135] An embodiment of the present application further provides a display device, which may include: a power supply component and a display panel. The power supply component in the display device may be used to supply power to the display panel, and the display panel may be the above-mentioned display panel.

[0136] For example, the display device may be any product or component with a display function, such as electronic paper, a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, and a navigator.

[0137] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It is also understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it is understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it may be the only layer between the two layers or two elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0138] In the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0139] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that: The display panel has: an opening area, a display area located outside the opening area, and a transition area located between the opening area and the display area; the display panel includes: a substrate, and a light-emitting device, a conductive support column, a conductive isolation column and a signal connection line located on one side of the substrate; The light emitting devices are distributed in the display area; The conductive support column and the conductive isolation column are both distributed in the transition area and are both distributed around the opening area; the conductive isolation column is located on a side of the conductive support column away from the substrate, and the conductive isolation column is insulated from the conductive support column; The signal connection line is electrically connected to the conductive support column, and the signal connection line is used to apply a positive potential signal to the conductive support column.

2. The display panel according to claim 1, characterized in that: There are multiple conductive support pillars, the multiple conductive support pillars are nested and distributed, and two adjacent conductive support pillars are electrically connected; Wherein, the signal connection line is electrically connected to the outermost conductive support column among the plurality of conductive support columns.

3. The display panel according to claim 2, characterized in that: The number of the light-emitting devices is multiple; the display panel further comprises: multiple pixel driving circuits electrically connected to the multiple light-emitting devices; the multiple pixel driving circuits are arranged in multiple columns along the first direction and in multiple rows along the second direction; Wherein, the signal connection line is electrically connected to at least a portion of the pixel driving circuit.

4. The display panel according to claim 3, characterized in that: The display panel further comprises: a first power signal line, the first power signal line being electrically connected to each of the pixel driving circuits; The signal connection line includes at least a portion of the first power signal line.

5. The display panel according to claim 4, characterized in that: The first power signal line includes: a plurality of first sub-power lines extending along the first direction, and a plurality of second sub-power lines extending along the second direction; the first sub-power lines are electrically connected to the second sub-power lines at a crossing position; The signal connection line includes: two adjacent second sub-power lines located on both sides of the opening area in the first direction, and / or two adjacent first sub-power lines located on both sides of the opening area in the second direction.

6. The display panel according to claim 3, characterized in that: The display panel further comprises: a plurality of data signal lines, wherein the overall extending direction of the data signal lines is parallel to the second direction; the plurality of data signal lines correspond to a plurality of columns of the pixel driving circuits, and one of the data signal lines is electrically connected to a corresponding column of the pixel driving circuits; The signal connection line includes a target data line, and the target data line is a data signal line among the plurality of data signal lines that is closest to the opening area in the first direction.

7. The display panel according to claim 6, characterized in that: The signal connection line further includes: a virtual data line, the overall extension direction of the virtual data line is parallel to the second direction, and the virtual data line is arranged separately from the pixel driving circuit; Wherein, in the first direction, the opening area is located between a portion of the target data lines and a portion of the virtual data lines.

8. The display panel according to claim 7, characterized in that: The target data line comprises: a target data line body and a first winding portion connected to each other; the virtual data line comprises: a virtual data line body and a second winding portion connected to each other; The extension directions of the target data line body and the virtual data line body are both parallel to the second direction, and are both distributed at least in the display area; the first winding portion and the second winding portion are located on both sides of the opening area in the first direction, and are both distributed in the transition area; The first winding portion and the second winding portion are both electrically connected to the outermost conductive support column among the plurality of conductive support columns.

9. The display panel according to claim 3, characterized in that: The display panel further comprises: a plurality of initial signal lines, wherein the overall extending direction of the initial signal lines is parallel to the first direction; the plurality of initial signal lines correspond to a plurality of rows of the pixel driving circuits, and one of the initial signal lines is electrically connected to a corresponding row of the pixel driving circuits; The signal connection line includes a first target initial line and a second target initial line, and the first target initial line and the second target initial line are respectively: two adjacent initial signal lines located on both sides of the opening area in the second direction among the multiple initial signal lines.

10. The display panel according to claim 9, characterized in that: The first target initial line includes a first target initial line body and a third winding portion; the second target initial line includes a second target initial line body and a fourth winding portion; Wherein, the extension directions of the first target initial line body and the second target initial line body are both parallel to the first direction, and are both distributed at least in the display area; the third winding portion and the fourth winding portion are located on both sides of the opening area in the second direction, and are both distributed in the transition area; The third winding portion and the fourth winding portion are both electrically connected to the outermost conductive support column among the plurality of conductive support columns.

11. The display panel according to claim 3, characterized in that: For any one of the conductive support pillars, the conductive support pillar comprises: at least two ring-shaped electrodes stacked in layers; The signal connection lines include: at least two types of signal lines corresponding to the at least two annular electrodes one by one; one type of the signal lines is electrically connected to the corresponding annular electrodes in the conductive support column; The at least two types of signal lines are: at least two of a first power signal line, a data signal line and an initial signal line.

12. The display panel according to any one of claims 1 to 11, characterized in that: The number of the conductive isolation columns and the number of the conductive support columns are both multiple, at least some of the conductive isolation columns correspond to at least some of the conductive support columns, and the orthographic projections of the conductive isolation columns on the substrate overlap with the orthographic projections of the corresponding conductive support columns on the substrate.

13. The display panel according to claim 12, characterized in that: The conductive support column comprises: at least two ring-shaped electrodes stacked in layers; For the innermost conductive support column among the plurality of conductive support columns, the at least two annular electrodes in the conductive support column include: at least one first type electrode and at least one second type electrode; Among them, the orthographic projection of the first type of electrodes in the conductive support column on the substrate overlaps with the orthographic projection of the corresponding conductive isolation column on the substrate; the orthographic projection of the second type of electrodes in the conductive support column on the substrate is staggered with the orthographic projection of the corresponding conductive isolation column on the substrate; and the second type of electrodes are closer to the opening area than the first type of electrodes.

14. The display panel according to any one of claims 1 to 11 and 13, characterized in that: The number of the conductive isolation columns is multiple, and the multiple conductive isolation columns include: multiple first-type conductive isolation columns and at least one second-type conductive isolation column; the display panel also includes: at least one inorganic insulating portion corresponding to the at least one second-type conductive isolation column; The first type of conductive isolation column has a first isolation groove on a side facing the opening area and a side away from the opening area; The first side of the second-type conductive isolation column has a second isolation groove, and the second side of the second-type conductive isolation column is covered by the corresponding inorganic insulating part; the first side of the second-type conductive isolation column is: one of the side of the second-type conductive isolation column facing the opening area and the side away from the opening area; the second side of the second-type conductive isolation column is: the other of the side of the second-type conductive isolation column facing the opening area and the side away from the opening area.

15. A display device, characterized in that: include: A power supply component, and a display panel connected to the power supply component, wherein the display panel is the display panel according to any one of claims 1 to 14.

Images