Display panel and display device

Abstract

This application relates to a display panel and a display device. The display panel includes a display area and a bezel area, with the bezel area disposed on at least one side of the display area. The display panel includes a substrate and a barrier wall, with the barrier wall disposed on one side of the substrate and in the bezel area. The barrier wall includes multiple blocking portion groups, which are arranged along the direction from the display area to the bezel area. In the same blocking portion group, each blocking portion group includes multiple blocking portions, which are arranged at intervals along the circumference of the display area, with a gap between adjacent blocking portions. Two adjacent blocking portion groups are defined as a first blocking portion group and a second blocking portion group, respectively. The blocking portions of the first blocking portion group and the gap between the second blocking portion group are disposed opposite to each other, and the blocking portions of the second blocking portion group and the gap between the first blocking portion group are disposed opposite to each other. Therefore, the display panel and display device provided by this application can improve the packaging effect of the display panel.

Description

Technical Field

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

[0002] OLED (Organic Light Emitting Diode) display panels have many advantages, such as being all-solid-state, actively emitting light, having a fast response time, high contrast, no viewing angle limitations, and being able to achieve flexible displays. They are a new type of display technology that was developed in the mid-20th century and are widely used in people's daily production and life.

[0003] In related technologies, a display panel includes a substrate, multiple light-emitting units, and an encapsulation layer. The multiple light-emitting units are disposed on one side of the substrate, and the encapsulation layer is disposed on the side of the light-emitting units facing away from the substrate. By providing the encapsulation layer, water and oxygen can be prevented from entering the light-emitting units. However, the encapsulation effect of the above-mentioned display panel needs to be improved. Summary of the Invention

[0004] Therefore, it is necessary to provide a display panel and display device that aim to improve the encapsulation effect of the display panel.

[0005] In a first aspect, embodiments of this application provide a display panel, including a display area and a frame area, the frame area being disposed on at least one side of the display area. The display panel includes a substrate and a barrier wall, the barrier wall being disposed on one side of the substrate and in the frame area. The barrier wall includes a plurality of blocking portion groups, the plurality of blocking portion groups being arranged along the direction from the display area to the frame area. In the same blocking portion group, the blocking portion group includes a plurality of blocking portions, the plurality of blocking portions being arranged at intervals along the circumference of the display area, and there is a gap region between adjacent two blocking portions. Two adjacent blocking portion groups are defined as a first blocking portion group and a second blocking portion group, the blocking portions of the first blocking portion group and the gap region of the second blocking portion group being disposed opposite each other.

[0006] The display panel provided in this application embodiment can alleviate the overflow of the organic encapsulation layer along the direction from the display area to the border area by setting multiple blocking parts, thereby improving the encapsulation effect of the display panel.

[0007] Secondly, embodiments of this application also provide a display device, which includes the display panel provided in the first aspect.

[0008] The display device provided in this application includes a display panel. By providing multiple blocking parts, the overflow of the organic encapsulation layer along the direction from the display area to the border area can be mitigated, thereby improving the encapsulation effect of the display panel. Attached Figure Description

[0009] Figure 1 This is a cross-sectional view of the display panel provided in an embodiment of this application.

[0010] Figure 2 This is a top view of the organic encapsulation layer and barrier provided in an embodiment of this application.

[0011] Figure 3 Another top view of the organic encapsulation layer and barrier provided in an embodiment of this application.

[0012] Figure 4 Another top view of the organic encapsulation layer and barrier provided in an embodiment of this application.

[0013] Figure 5 Another cross-sectional view of the display panel provided in an embodiment of this application.

[0014] Figure 6 Another top view of the organic encapsulation layer and barrier provided in an embodiment of this application.

[0015] Figure 7 A cross-sectional view of the display panel located in the border area provided in an embodiment of this application.

[0016] Figure 8 Another cross-sectional view of the display panel located in the border area provided in an embodiment of this application.

[0017] Figure 9 A top view of the first insulating layer located in the second sub-region provided for an embodiment of this application.

[0018] Figure 10 A partial top view of the first and second insulating layers provided for embodiments of this application.

[0019] Figure 11 This is a top view of a display panel located in the border area, as provided in an embodiment of this application.

[0020] Figure 12 This is a partial top view of the signal line provided in an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures:

[0022] 100, Display panel; 100a, Display area; 100b, Bezel area; 101b, First sub-area; 102b, Second sub-area; 103b, Bending area; 101, Barrier; 110, Blocking assembly; 1101, First blocking assembly; 1102, Second blocking assembly; 111, Blocking part; 1111, First blocking part; 1112, Second blocking part; 112, Spacing area; 1121, First spacing area; 1122, Second spacing area; 113, Barrier main body; 1131, First sub-main body; 1132, Second sub-main body; 120, Substrate; 131, First encapsulation layer; 132, Second encapsulation layer; 133, Organic encapsulation layer; 141, First insulating layer; 142, Second insulating layer; 143, Third insulating layer; 144 145. Fourth insulating layer; 146. Fifth insulating layer; 147. Planarization layer; 148. Pixel defining layer; 150. Opening group; 1501. First opening group; 1502. Second opening group; 151. Opening; 153. Third spacing region; 106. Array substrate; M1. First conductive layer; M2. Second conductive layer; M3. Third conductive layer; M4. Fourth conductive layer; TM1. First touch conductive layer; TM2. Second touch conductive layer; 161. Polarizer; 162. Touch electrode; 163. Signal line; 1631. First sub-signal line; 1632. Second sub-signal line; 171. First via; 172. Second via; 173. Third via; B1. First side; B2. Second side; B3. Third side; B4. Fourth side. Detailed Implementation

[0023] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] When describing positional relationships, unless otherwise specified, when an element, such as a layer, film, or substrate, is referred to as being "on" another element, it may be directly on the other element or there may be intermediate elements present. Furthermore, when a layer is referred to as being "below" another layer, it may be directly below it or there may be one or more intermediate elements present. It is also understood that when a layer is referred to as being "between" two layers, it may be the only layer between the two layers, or there may be one or more intermediate elements present.

[0026] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0027] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0028] It should also be understood that, in interpreting an element, although not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of a particular value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0029] Furthermore, in the instruction manual, the phrase "planar distribution diagram" refers to the diagram when the target part is viewed from above, and the phrase "cross-sectional diagram" refers to the diagram when the target part is viewed from the side as a cross-section taken by vertically cutting the target part.

[0030] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0031] As described in the background section, in related technologies, a display panel includes a substrate, multiple light-emitting units, and an encapsulation layer. The multiple light-emitting units are disposed on one side of the substrate, and the encapsulation layer is disposed on the side of the light-emitting units facing away from the substrate. The encapsulation layer prevents water and oxygen from entering the light-emitting units. The encapsulation layer may include a first encapsulation layer, a second encapsulation layer, and a third encapsulation layer stacked sequentially along a direction away from the substrate. The first and second encapsulation layers are made of inorganic materials, while the second encapsulation layer is made of organic materials. The second encapsulation layer can be formed on the first encapsulation layer using inkjet printing and then cured.

[0032] However, the second encapsulation layer is fluid before it is cured. This fluid second encapsulation layer is prone to overflowing along the center to the edge of the display panel, which can lead to encapsulation failure.

[0033] Based on the aforementioned technical problems, the inventors discovered that a barrier wall comprises multiple blocking groups arranged along the direction from the display area to the frame area. Within each blocking group, multiple blocking parts are arranged at intervals along the circumferential direction of the display area, with a gap between adjacent blocking parts. Two adjacent blocking groups are defined as a first blocking group and a second blocking group, with the blocking parts of the first blocking group and the gap between them positioned opposite each other. Thus, by providing multiple blocking groups, the overflow of the organic encapsulation layer along the direction from the display area to the frame area can be mitigated, thereby improving the encapsulation effect of the display panel.

[0034] The above is the core idea of ​​this application. The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0035] In combination with appendix Figure 1-12 The display panel 100 and display device provided in the embodiments of this application will be described.

[0036] This application provides a display device that includes a display panel 100 as described in any of the following embodiments. Therefore, this display device also possesses the beneficial effects of the display panel 100 in the following embodiments. The similarities can be understood by referring to the following explanation of the display panel 100, and will not be repeated here.

[0037] For example, the display device can be a mobile phone or any electronic product with display function, including but not limited to the following categories: television, laptop, desktop monitor, tablet computer, digital camera, smart bracelet, smart glasses, vehicle display, industrial control equipment, medical display screen, touch interactive terminal, etc. The embodiments of this application do not make any special limitations on this.

[0038] In some embodiments, the display panel 100 may include an organic light-emitting diode (OLED) display panel, a quantum dot light-emitting diode (QLED) display panel, a mini light-emitting diode (Mini LED) display, or a micro light-emitting diode (MicroLED) display, etc. This application uses an OLED display panel as an example for illustration.

[0039] The display panel 100 provided in the embodiments of this application will be described below.

[0040] This application embodiment provides a display panel 100, which may include an array substrate 106 ( Figure 7 The array substrate 106 includes a light-emitting unit located on one side of the array substrate 106. The array substrate 106 can be electrically connected to the light-emitting unit. Multiple driving units are disposed in the array substrate 106, and these driving units can be arranged in an array. The driving units are electrically connected to the light-emitting units and are used to provide driving current to the light-emitting units. The driving units may include thin-film transistors (TFTs) and capacitor structures.

[0041] See Figure 1 The display panel 100 includes a display area 100a and a border area 100b, with the border area 100b located on at least one side of the display area 100a. The display area 100a can be used to display an image, and the border area 100b can be arranged adjacent to the display area 100a. For example, the border area 100b can surround the outer perimeter of the display area 100a.

[0042] For example, the border area 100b may not display any image, and the border area 100b may form a "black border" around the periphery of the display area 100a. Alternatively, at least a portion of the border area 100b may be used to display an image.

[0043] See Figure 1 and Figure 7 The array substrate 106 may include a substrate 120. The substrate 120 may provide support for the remaining film layers to be subsequently applied.

[0044] The retaining wall 101 provided in the embodiments of this application will be described below.

[0045] See Figure 1 and Figure 2The display panel 100 may include a barrier 101 disposed on one side of the substrate 120 along the thickness direction, and the barrier 101 is disposed in the border area 100b. For example, the border area 100b may include a first sub-area 101b, and the barrier 101 is disposed in the first sub-area 101b. The barrier 101 may include a plurality of blocking portion groups 110, which are arranged along the direction from the display area 100a to the border area 100b. Thus, by providing a plurality of blocking portion groups 110, the organic film layer can be prevented from overflowing along the direction from the display area 100a to the border area 100b. Taking the organic film layer as an organic encapsulation layer 133 as an example, the plurality of blocking portion groups 110 can alleviate the overflow of the organic encapsulation layer 133 along the direction from the display area 100a to the border area 100b, thereby improving the encapsulation effect of the display panel 100.

[0046] For example, the number of blocking parts 110 can be any number of 2, 3, 4 or more.

[0047] See Figure 2 and Figure 3 In the same blocking part group 110, the blocking part group 110 may include a plurality of blocking parts 111, which are arranged at intervals along the circumference of the display area 100a, and there is a gap region 112 between two adjacent blocking parts 111. Two adjacent blocking part groups 110 are defined as the first blocking part group 1101 and the second blocking part group 1102, respectively. The blocking parts 111 of the first blocking part group 1101 are the first blocking parts 1111, the gap region 112 of the first blocking part group 1101 is the first gap region 1121, the blocking parts 111 of the second blocking part group 1102 are the second blocking parts 1112, and the gap region 112 of the second blocking part group 1102 is the second gap region 1122. The first blocking portion 1111 is disposed opposite to the second spacing region 1122, and the second blocking portion 1112 is disposed opposite to the first spacing region 1121. Thus, the first blocking portion 1111 helps to alleviate the overflow of the organic encapsulation layer 133 from the second spacing region 1122 along the direction from the display area 100a to the border area 100b, and the second blocking portion 1112 helps to alleviate the overflow of the organic encapsulation layer 133 from the first spacing region 1121 along the direction from the display area 100a to the border area 100b, thereby making the multiple blocking portion groups 110 have a better anti-overflow effect on the organic encapsulation layer 133.

[0048] In some embodiments, the first blocking portion group 1101 is disposed on the side of the second blocking portion group 1102 near the display area 100a.

[0049] In some embodiments, see Figure 1The blocking portion 111 is constructed as a protrusion, and the orthographic projection of the barrier 101 on the substrate 120 coincides with the orthographic projection of the protrusion on the substrate 120, that is, the barrier 101 can be formed by all the protrusions together. In this way, during the overflow of the organic encapsulation layer 133, the blocking portion 111 can prevent the organic encapsulation layer 133 from overflowing outward. In addition, the organic encapsulation layer 133 is diverted and its flow rate is reduced under the action of the inner blocking portion 111, and when it flows to the outer blocking portion 111, it is diverted again and its flow rate is reduced again. This can alleviate the overflow of the organic encapsulation layer 133 along the direction from the display area 100a to the border area 100b, which is beneficial to improving the encapsulation effect of the display panel 100.

[0050] In other embodiments, see Figure 5 and Figure 6 The barrier 101 may include a barrier body 113, which extends circumferentially along the display area 100a. All blocking portions 111 are provided on the barrier body 113. The blocking portions 111 are constructed as grooves that penetrate at least the surface of the barrier body 113 opposite to the substrate 120. The orthographic projection of the barrier 101 on the substrate 120 coincides with the orthographic projection of the barrier body 113 on the substrate 120. The barrier 101 is formed by the barrier body 113 and the blocking portions 111 provided on the barrier body 113. Thus, during the overflow of the organic encapsulation layer 133, the barrier body 113 can prevent the organic encapsulation layer 133 from overflowing outward. In addition, when the organic encapsulation layer 133 overflows to the side of the barrier body 113 away from the substrate 120, the organic encapsulation layer 133 will flow into the groove, changing the flow direction of at least part of the organic encapsulation layer 133. Moreover, the sidewall of the groove has a blocking effect on the flow of the organic encapsulation layer 133, which can reduce the flow speed of the organic encapsulation layer 133. After the organic encapsulation layer 133 enters the groove, the volume of the organic encapsulation layer 133 that continues to overflow outward can also be reduced. This can effectively alleviate the overflow of the organic encapsulation layer 133 along the direction from the display area 100a to the border area 100b, which is beneficial to improving the encapsulation effect of the display panel 100. Secondly, by setting a groove in the barrier body 113, the blocking effect of the barrier body 113 on the overflow of the organic encapsulation layer 133 is improved. The groove can be made without increasing the thickness of the display panel 100 or the width of the barrier body 113 from the display area 100a to the border area 100b, which is conducive to the thinning of the display panel 100 and also conducive to achieving a narrow bezel.

[0051] For example, the number of barrier bodies 113 can be one. By providing grooves in the barrier body 113, the blocking effect of the barrier body 113 on the overflow of the organic encapsulation layer 133 can be improved. This eliminates the need for multiple barrier bodies 113, allowing the barrier 101 to effectively mitigate the overflow of the organic encapsulation layer 133 along the direction from the display area 100a to the border area 100b. This helps to reduce the width of the barrier 101 along the direction from the display area 100a to the border area 100b, thus facilitating a narrow bezel. Alternatively, the number of barrier bodies 113 can be multiple, arranged at intervals along the direction from the display area 100a to the border area 100b, thereby further improving the overflow blocking effect of the barrier 101 on the organic encapsulation layer 133. This application embodiment uses a single barrier body 113 as an example for illustration.

[0052] In some examples, in at least one groove, the groove can penetrate the side of the barrier body 113 facing away from the substrate 120, and the groove penetrates a portion of the thickness of the barrier body 113. The groove can be a blind groove, thus the groove depth is small, which helps to shorten the groove fabrication time. In other examples, in at least one groove, the groove can penetrate both the side of the barrier body 113 facing away from the substrate 120 and the side of the barrier body 113 facing the substrate 120. The groove can completely penetrate the barrier body 113 along the thickness direction of the substrate 120. Thus, the groove depth is large, which helps to improve the overflow blocking effect of the groove on the organic encapsulation layer 133.

[0053] In some embodiments, see Figure 3 A portion of the first blocking portion group 1101 extends into the interval region 112 of the second blocking portion group 1102, and a portion of the second blocking portion group 1102 extends into the interval region 112 of the first blocking portion group 1101. That is, a portion of the first blocking portion 1111 can extend into the second interval region 1122, and a portion of the second blocking portion 1112 can extend into the first interval region 1121. In this way, the total size of the display panel 100 along the display area 100a to the border area 100b occupied by the first blocking portion 1111 and the second blocking portion 1112 is smaller, which is beneficial to reducing the width of the border area 100b of the display panel 100 along the display area 100a to the border area 100b, and thus facilitating the achievement of a narrow bezel.

[0054] It should be noted that the shapes of any two blocking portions 111 may be the same or different. The dimensions of any two blocking portions 111 along the circumferential direction of the display area 100a may be the same or different. The dimensions of any two blocking portions 111 along the distance from the display area 100a to the border area 100b may be the same or different. The dimensions of any two blocking portions 111 along the thickness direction of the substrate 120 may be the same or different. The number of blocking portions 111 in any two blocking portion groups 110 may be the same or different.

[0055] In some embodiments, the dimensions of the first blocking portion 1111 and the second blocking portion 1112 along the circumferential direction of the display area 100a can be equal, which helps to reduce the manufacturing difficulty of the first blocking portion 1111 and the second blocking portion 1112.

[0056] In some embodiments, the first blocking portion 1111 and the second blocking portion 1112 may have the same size along the direction from the display area 100a to the border area 100b, which helps to reduce the manufacturing difficulty of the first blocking portion 1111 and the second blocking portion 1112.

[0057] In some embodiments, the dimensions of the first interval region 1121 and the second interval region 1122 along the circumferential direction of the display area 100a can be equal, which helps to reduce the manufacturing difficulty of the first blocking portion 1111 and the second blocking portion 1112.

[0058] In other embodiments, the dimensions of the first blocking portion 1111 and the second blocking portion 1112 along the circumference of the display area 100a are not equal. For example, the dimension of the first blocking portion 1111 along the circumference of the display area 100a may be greater than the dimension of the second blocking portion 1112 along the circumference of the display area 100a, or the dimension of the first blocking portion 1111 along the circumference of the display area 100a may be smaller than the dimension of the second blocking portion 1112 along the circumference of the display area 100a.

[0059] In other embodiments, the dimensions of the first blocking portion 1111 and the second blocking portion 1112 along the direction from the display area 100a to the border area 100b are not equal. For example, the dimension of the first blocking portion 1111 along the direction from the display area 100a to the border area 100b may be greater than the dimension of the second blocking portion 1112 along the direction from the display area 100a to the border area 100b, or the dimension of the first blocking portion 1111 along the direction from the display area 100a to the border area 100b may be smaller than the dimension of the second blocking portion 1112 along the direction from the display area 100a to the border area 100b.

[0060] In other embodiments, the dimensions of the first interval region 1121 and the second interval region 1122 along the circumference of the display area 100a are not equal. For example, the dimension of the first interval region 1121 along the circumference of the display area 100a is greater than the dimension of the second interval region 1122 along the circumference of the display area 100a, or the dimension of the first interval region 1121 along the circumference of the display area 100a is smaller than the dimension of the second interval region 1122 along the circumference of the display area 100a.

[0061] See Figure 4 In embodiments where the dimension of the first interval region 1121 along the circumference of the display area 100a is larger than the dimension of the second interval region 1122 along the circumference of the display area 100a, and the dimension of the first blocking portion 1111 along the circumference of the display area 100a is smaller than the dimension of the second blocking portion 1112 along the circumference of the display area 100a, the dimension of the inner interval region 112 along the circumference of the display area 100a can be set to be larger, and the dimension of the outer interval region 112 along the circumference of the display area 100a can be set to be smaller, and the dimension of the inner blocking portion 1111 along the circumference of the display area 100a can be set to be smaller, and the dimension of the outer blocking portion 1111 along the circumference of the display area 100a can be set to be smaller, and the dimension of the outer blocking portion 1111 along the circumference of the display area 100a can be set to be smaller, and the dimension of the inner blocking portion 112 ... The size of the baffle 111 along the circumferential direction of the display area 100a is set to be relatively large, thereby reducing the overflow blocking effect of the inner baffle group 110 on the organic encapsulation layer 133 and increasing the overflow blocking effect of the outer baffle group 110 on the organic encapsulation layer 133. This prevents the organic encapsulation layer 133 from stopping its flow too quickly during the overflow process, but instead allows it to stop flowing slowly. This results in a smooth reduction in the cutoff height of the organic encapsulation layer 133 (e.g., from 17 μm to 0 μm), which helps to reduce the difficulty of fabricating the film layer subsequently formed on the edge of the organic encapsulation layer 133 and improve the thickness uniformity.

[0062] For example, see Figure 4 Taking three blocking part groups 110 as an example, the three blocking part groups 110 are defined as the third blocking part group, the fourth blocking part group, and the fifth blocking part group. The third blocking part group, the fourth blocking part group, and the fifth blocking part group are arranged along the direction from the display area 100a to the border area 100b. The size range of the blocking part 111 of the third blocking part group along the direction from the display area 100a to the border area 100b is 5μm-10μm, and the size range of the blocking part 111 of the third blocking part group 110 along the circumferential direction of the display area 100a is 5μm-10μm. The size range of the blocking part 111 of the fourth blocking part group 110 along the direction from the display area 100a to the border area 100b is 10μm-20μm, and the size range of the blocking part 111 of the fourth blocking part group 110 along the circumferential direction of the display area 100a is 10μm-20μm. The size range of the blocking portion 111 of the fifth blocking portion group 110 along the direction from the display area 100a to the border area 100b is 20μm-30μm, and the size range of the blocking portion 111 of the fifth blocking portion group 110 along the circumferential direction of the display area 100a is 20μm-30μm.

[0063] See Figure 4 In an embodiment where the dimension of the first blocking portion 1111 along the direction from the display area 100a to the border area 100b is smaller than the dimension of the second blocking portion 1112 along the same direction, the dimension of the inner blocking portion 111 along the direction from the display area 100a to the border area 100b can be set to be smaller, and the dimension of the outer blocking portion 111 along the same direction from the display area 100a to the border area 100b can be set to be larger. This can reduce the overflow blocking effect of the inner blocking portion group 110 on the organic encapsulation layer 133 and increase the overflow blocking effect of the outer blocking portion group 110 on the organic encapsulation layer 133. This ensures that the organic encapsulation layer 133 will not stop flowing too quickly during the overflow process, but will stop flowing slowly, so that the cutoff height of the organic encapsulation layer 133 is smoothly reduced. This is beneficial to reducing the difficulty of preparing the film layer subsequently formed on the edge of the organic encapsulation layer 133 and improving the thickness uniformity.

[0064] In embodiments where the blocking portion 111 is a protrusion, the organic encapsulation layer 133 may be located in at least a portion of the spacing region 112, and the organic encapsulation layer 133 may cover at least a portion of the surface of the blocking portion 111 facing away from the substrate 120, or the organic encapsulation layer 133 may not cover the surface of the blocking portion 111 facing away from the substrate 120.

[0065] In some embodiments, where the barrier 101 includes a barrier body 113, the organic encapsulation layer 133 may be blocked on the side of the barrier 101 facing the display area 100a. Alternatively, the organic encapsulation layer 133 may cover a portion of the barrier body 113 on the side facing away from the substrate 120. For example, see... Figure 6 The retaining wall body 113 includes a first sub-body 1131 and a second sub-body 1132 connected together. The first sub-body 1131 and the second sub-body 1132 are arranged along the direction from the display area 100a to the border area 100b. The first sub-body 1131 is located on the side of the second sub-body 1132 closer to the display area 100a. Both the first sub-body 1131 and the second sub-body 1132 are provided with a blocking part 111 (i.e., a groove). Figure 6 In the diagram, since the organic encapsulation layer 133 covers the first sub-body 1131 and the groove located on the first sub-body 1131, the first sub-body 1131 and the groove on the first sub-body 1131 are shown as dashed lines to indicate that the first sub-body 1131 and the groove located on the first sub-body 1131 have a perspective effect.

[0066] In some examples, see also Figure 6The organic encapsulation layer 133 covers the side of the first sub-body 1131 facing away from the substrate 120, and is disposed in a groove on the first sub-body 1131. The orthographic projection of the organic encapsulation layer 133 on the substrate 120 does not overlap with the orthographic projection of the second sub-body 1132 on the substrate 120. That is, the organic encapsulation layer 133 only covers the first sub-body 1131 and does not cover the second sub-body 1132. In this way, the groove on the first sub-body 1131 stops the flow of the organic encapsulation layer 133, preventing the organic encapsulation layer 133 from overflowing and affecting the encapsulation effect. In addition, by providing redundant grooves on the second sub-body 1132, it can be effectively ensured that the organic encapsulation layer 133 cannot completely cross the barrier 101, which can improve the allowable error of the manufacturing process of the barrier 101 and reduce the manufacturing difficulty of the barrier 101.

[0067] In other examples, the organic encapsulation layer 133 covers the side of the first sub-body 1131 and the second sub-body 1132 facing away from the substrate 120, and the organic encapsulation layer 133 is disposed in the grooves on the first sub-body 1131 and the second sub-body 1132. In this way, there is no redundant groove on the barrier body 113, which helps to reduce the width of the barrier body 113 along the display area 100a to the border area 100b, thereby reducing the width of the border area 100b and helping to achieve a narrow bezel.

[0068] In some embodiments, at least a portion of the barrier 101 can be disposed in the same layer and with the same material as at least one of the pixel defining layer 147 and the planarization layer 146, thereby simplifying the fabrication process of the barrier 101 and reducing the fabrication cost.

[0069] It should be noted that "same layer, same material" in the embodiments of this application refers to forming a base film layer from the same material, and then, after patterning and / or other processing of the base film layer, forming various structural film layers from different parts of the base film layer. The processing processes for the different structural film layers can be the same or different, and the different structural film layers can have the same or different thicknesses, and can also be on the same horizontal plane or different horizontal planes.

[0070] In some embodiments, see Figure 1 The display panel 100 includes a touch electrode 162, a signal line 163, and a touch chip. The touch electrode 162 is located in the display area 100a, and the touch chip is located on the side of the barrier 101 away from the display area 100a. One end of the signal line 163 is electrically connected to the touch electrode 162, and the other end of the signal line 163 is electrically connected to the touch chip. Some of the signal lines 163 can be located in the first sub-area 101b to realize signal transmission between the touch electrode 162 and the touch chip through the signal lines 163.

[0071] In some embodiments, the orthographic projection of the signal line 163 on the substrate 120 overlaps with the orthographic projection of the blocking portion 111 on the substrate 120, with a portion of the signal line 163 located on the side of the blocking wall 101 away from the substrate 120. In embodiments where the blocking portion 111 is a protrusion, a portion of the signal line 163 may be located on the side of the protrusion away from the substrate 120. In embodiments where the blocking portion 111 is a groove, a portion of the signal line 163 may be located in the groove, which may penetrate a portion of the thickness of the blocking wall body 113, resulting in a shallower groove depth. This reduces the risk of breakage of the signal line 163 located in the groove, thus helping to prevent touch failure. In an embodiment where the blocking portion 111 is a groove and the organic encapsulation layer 133 only covers the first sub-body 1131, a portion of the signal line 163 can be located in the groove of the first sub-body 1131, and the signal line 163 is located outside the groove of the second sub-body 1132. Thus, since the organic encapsulation layer 133 is provided in the groove of the first sub-body 1131, the depth to which the signal line 163 extends into the groove is small, which can reduce the risk of breakage of the signal line 163 located in the groove. In addition, since the signal line 163 is located outside the groove of the second sub-body 1132, it can prevent the signal line 163 from extending into the groove of the second sub-body 1132 and breaking.

[0072] In other embodiments, the orthographic projection of the signal line 163 on the substrate 120 overlaps with the orthographic projection of the spacing region 112 on the substrate 120, and the orthographic projection of the signal line 163 on the substrate 120 does not overlap with the orthographic projection of the blocking portion 111 on the substrate 120. In embodiments where the blocking portion 111 is a protrusion, the signal line 163 passes through the spacing region 112 without covering the protrusion, thereby preventing the protrusion from causing the signal line 163 to break. In embodiments where the blocking portion 111 is a groove, the signal line 163 covers the side of the barrier body 113 facing away from the substrate 120, and the signal line 163 does not extend into the groove, thereby preventing the groove from causing the signal line 163 to break.

[0073] In some embodiments, the orthographic projection of the blocking portion 111 onto the substrate 120 can be a polygon, a circle, an ellipse, or other irregular shape.

[0074] In the embodiment where the orthographic projection of the blocking portion 111 on the substrate 120 is a polygon, the boundary of the polygon is clearer, and the relative positional relationship between each side of the polygon and the cutoff boundary of the organic encapsulation layer 133 is easier to observe. It is easier to determine whether the organic encapsulation layer 133 has overflowed the barrier 101, which is beneficial for monitoring the printing accuracy of the organic encapsulation layer 133.

[0075] For example, a polygon can be a quadrilateral ( Figure 2 Quadrilaterals can include rhombuses, squares, or rectangles, etc., pentagons, and hexagons. Figure 3 and Figure 4), octagon, etc.

[0076] For example, the shape of the orthographic projection of the light-emitting material layer of the light-emitting unit onto the substrate 120 can be the same as the shape of the orthographic projection of the blocking portion 111 onto the substrate 120.

[0077] See Figure 2 In the embodiment where the polygon is a quadrilateral, the polygon may include a first side B1, a second side B2, a third side B3, and a fourth side B4 connected end to end in sequence. The first side B1 and the third side B3 extend in the same direction and are positioned opposite each other. The second side B2 and the fourth side B4 extend in the same direction and are positioned opposite each other. The first side B1 and the second side B2 are closer to the display area 100a than the third side B3 and the fourth side B4. The distance between the first side B1 and the second side B2 along the circumference of the display area 100a gradually increases from the display area 100a to the border area 100b. The distance between the third side B3 and the fourth side B4 along the circumference of the display area 100a gradually decreases from the display area 100a to the border area 100b. That is, the size of the polygon along the circumference of the display area 100a first gradually increases and then gradually decreases from the display area 100a to the border area 100b.

[0078] For example, see Figure 2 In the same blocking part group 110, the distance d3 between two adjacent blocking parts 111 ranges from 3μm to 10μm. This can avoid the distance between two adjacent blocking parts 111 being too small, which helps to reduce the difficulty of setting up the blocking parts 111. It can also avoid the distance between two adjacent blocking parts 111 being too large, which helps to increase the arrangement density of the blocking parts 111 and improve the blocking effect of the blocking part group 110.

[0079] For example, in the same group of blocking parts 110, the distance d3 between two adjacent blocking parts 111 can be 3μm, 5μm, 7μm, 9μm, 10μm or any value between 3μm and 10μm.

[0080] For example, see Figure 2 The size d2 of the blocking part 111 along the direction from the display area 100a to the border area 100b ranges from 5μm to 30μm. This avoids the blocking part 111 being too small along the direction from the display area 100a to the border area 100b, which is beneficial to improving the blocking effect of the blocking part 111. In addition, it also avoids the blocking part 111 being too large along the direction from the display area 100a to the border area 100b, which is beneficial to improving the arrangement density of the blocking part 111 and also to achieving a narrow bezel.

[0081] For example, the dimension d2 of the blocking portion 111 along the direction from the display area 100a to the border area 100b can be 5μm, 10μm, 15μm, 20μm, 25μm, 30μm or any value between 5μm and 30μm.

[0082] For example, see Figure 2 The size d1 of the blocking part 111 along the circumference of the display area 100a ranges from 5μm to 30μm, which can avoid the blocking part 111 being too small along the circumference of the display area 100a and improve the blocking effect of the blocking part 111. In addition, it can also avoid the blocking part 111 being too large along the circumference of the display area 100a, which can improve the arrangement density of the blocking part 111.

[0083] For example, the dimension d1 of the blocking portion 111 along the circumferential direction of the display area 100a can be 5μm, 10μm, 15μm, 20μm, 25μm, 30μm or any value between 5μm and 30μm.

[0084] For example, the size range of the barrier 101 along the direction from the display area 100a to the border area 100b is 30μm-150μm, which can avoid the barrier 101 being too small along the direction from the display area 100a to the border area 100b, which helps to reduce the difficulty of setting the blocking part 111. In addition, it can also avoid the barrier 101 being too large along the direction from the display area 100a to the border area 100b, which is conducive to achieving a narrow bezel.

[0085] For example, the size of the barrier 101 along the direction from the display area 100a to the border area 100b can be 30μm, 50μm, 70μm, 90μm, 110μm, 120μm, 130μm, 150μm or any value between 30μm and 150μm.

[0086] For example, the size range of the barrier 101 along the thickness direction of the substrate 120 is 10μm-20μm, which can avoid the barrier 101 being too small along the thickness direction of the substrate 120, improve the blocking effect of the barrier 101 on the organic encapsulation layer 133, and also avoid the barrier 101 being too large along the thickness direction of the substrate 120, which is beneficial to the thinning of the display panel 100.

[0087] For example, the dimension of the barrier 101 along the thickness direction of the substrate 120 can be 10μm, 12μm, 14μm, 16μm, 18μm, 20μm or any value between 10μm and 20μm.

[0088] For example, in an embodiment where the blocking portion 111 is a groove, the depth of the groove is in the range of 1μm-10μm, which can avoid the groove being too shallow and improve the blocking effect of the groove on the organic encapsulation layer 133. In addition, it can also avoid the groove being too deep and shorten the preparation time of the groove.

[0089] For example, the depth of the groove can be 1μm, 3μm, 5μm, 7μm, 10μm or any value between 1μm and 10μm.

[0090] In some embodiments, see Figure 7 and Figure 8 The display panel 100 includes a first insulating layer 141 and a second insulating layer 142 stacked along the thickness direction of the substrate 120. Both the first insulating layer 141 and the second insulating layer 142 can be located in the display area 100a and the bezel area 100b. The first insulating layer 141 is disposed on the side of the touch electrode 162 and the signal line 163 facing away from the substrate 120, and the second insulating layer 142 is disposed on the side of the first insulating layer 141 facing away from the substrate 120. The refractive index of the first insulating layer 141 can be less than the refractive index of the second insulating layer 142, which is beneficial to improving the light extraction efficiency of the display panel 100.

[0091] For example, the material of the first insulating layer 141 may include a transparent optical adhesive.

[0092] For example, the material of the second insulating layer 142 includes an organic material, and the second insulating layer 142 may have fluidity before curing.

[0093] In some embodiments, see Figure 8 and Figure 9 The border area 100b includes a second sub-area 102b, which is located on the side of the first sub-area 101b opposite to the display area 100a. A plurality of opening groups 150 may be provided on the first insulating layer 141 of the second sub-area 102b, and these opening groups 150 are arranged along the direction from the display area 100a to the border area 100b. Within the same opening group 150, there are multiple openings 151, which are spaced apart circumferentially along the display area 100a. A third spacing region 153 exists between adjacent openings 151. Thus, during the outward flow of the second insulating layer 142, the second insulating layer 142 will flow into the opening 151, which can reduce the outward flow speed of the second insulating layer 142 and prevent the second insulating layer 142 from flowing outward too fast, resulting in the edge of the second insulating layer 142 being too thin. This is beneficial to improving the thickness uniformity of the edge of the second insulating layer 142 and to improving the adhesion between the polarizer 161 subsequently disposed on the second insulating layer 142 and the second insulating layer 142.

[0094] For example, the number of opening groups 150 can be any number of 2, 3, 4 or more.

[0095] See Figure 9 Two adjacent opening groups 150 are defined as the first opening group 1501 and the second opening group 1502, respectively. The opening 151 of the first opening group 1501 is positioned opposite to the third interval region 153 of the second opening group 1502. In this way, the opening 151 of the first opening group 1501 helps to alleviate the excessive outflow of the second insulating layer 142 from the third interval region of the second opening group 1502 along the direction from the display area 100a to the border area 100b. The opening 151 of the second opening group 1502 is positioned opposite to the third interval region 153 of the first opening group 1501. In this way, the opening 151 of the second opening group 1502 helps to alleviate the excessive outflow of the second insulating layer 142 from the third interval region of the first opening group 1501 along the direction from the display area 100a to the border area 100b. Thus, the multiple opening groups 150 have a better effect on slowing down the outflow of the second insulating layer 142.

[0096] Among them, see Figure 10 The second insulating layer 142 may be disposed in a portion of the openings 151. Figure 10 Since the second insulating layer 142 covers a portion of the opening 151, this portion of the opening 151 is shown as a dashed line to indicate that the portion of the opening 151 has a perspective effect. Alternatively, the second insulating layer 142 may be provided in all openings 151.

[0097] For example, the opening 151 penetrates at least the side of the first insulating layer 141 opposite to the substrate 120. The opening 151 may penetrate a portion of the thickness of the first insulating layer 141, or the opening 151 may completely penetrate the first insulating layer 141 along the thickness direction of the substrate 120.

[0098] In some embodiments, the display panel 100 includes a bending region 103b located on the side of the second sub-region 102b opposite to the display region 100a. By bending the display panel 100, a portion of the display panel 100 can be bent to the backlight surface of the display panel 100, thereby reducing the bezel width of the display device.

[0099] Figure 11This is a top view of a portion of the border area 100b. Dashed line A shows the boundary of the display area 100a; dashed line B shows the boundary of organic film layers such as the planarization layer 146 and the pixel limiting layer 147; dashed boxes C and D show the area where the barrier body 113 is located; dashed line E shows the boundary of the first encapsulation layer 131 and / or the second encapsulation layer 132; dashed line F shows the boundary of the polarizer 161; dashed line G shows the boundary of the second insulating layer 142; dashed box H shows the area where multiple openings 151 are located; and dashed box I shows the third via 173. Figure 8 In the area where the dashed line J indicates the boundary of the inorganic insulating layer in the array substrate 106, the area between the dashed lines K and L indicates the area where the bending region 103b is located, and the dashed line M indicates the boundary of the support layer.

[0100] In some embodiments, see Figure 8 and Figure 11 The display panel 100 may include a polarizer 161, which is disposed on the side of the second insulating layer 142 away from the substrate 120. The orthographic projection of the polarizer 161 on the substrate 120 is disposed within the orthographic projection of the second insulating layer 142 on the substrate 120. Thus, the area of ​​the second insulating layer 142 is larger than the area of ​​the polarizer 161, and the second insulating layer 142 can provide better support for the polarizer 161. In addition, by providing a plurality of opening groups 150 in the first insulating layer 141, it is beneficial to improve the thickness uniformity of the edge of the second insulating layer 142, thereby improving the tightness of the fit between the edge of the polarizer 161 and the edge of the second insulating layer 142 and reducing air bubbles between the edges of the polarizer 161 and the second insulating layer 142.

[0101] In some embodiments, the touch chip is located on the side of the second sub-region 102b opposite to the display area 100a. The signal line 163 needs to pass through the second sub-region 102b to achieve electrical connection with the touch chip. Some of the signal lines 163 can be located in the second sub-region 102b. See also Figure 7 The signal line 163 may include a first sub-signal line 1631 and a second sub-signal line 1632 that are electrically connected. The second sub-signal line 1632 may be disposed on the side of the first sub-signal line 1631 that is away from the substrate 120.

[0102] It should be noted that if the orthographic projection of the second sub-signal line 1632 on the substrate 120 overlaps with the orthographic projection of the opening 151 on the substrate 120, in an embodiment where the opening 151 penetrates a portion of the thickness of the first insulating layer 141, the thickness of the first insulating layer 141 at the opening 151 is relatively thin. During the etching process of the opening 151, water and oxygen can easily penetrate the first insulating layer 141 at the opening 151 and erode the second sub-signal line 1632. In an embodiment where the opening 151 completely penetrates the first insulating layer 141, during the etching process of the opening 151, water and oxygen can directly contact the second sub-signal line 1632 and erode the second sub-signal line 1632, thereby easily leading to touch failure.

[0103] In some embodiments, see Figure 7 and Figure 12 The orthographic projection of the second sub-signal line 1632 on the substrate 120 does not overlap with the orthographic projection of the opening 151 on the substrate 120. The second sub-signal line 1632 and the opening 151 are staggered along the thickness direction of the substrate 120. During the etching process of the opening 151, water and oxygen can be prevented from corroding the second sub-signal line 1632, thereby protecting the second sub-signal line 1632 and improving the electrical reliability of the second sub-signal line 1632.

[0104] For example, see Figure 5 and Figure 7 A fifth insulating layer 145 may be provided between the first touch conductive layer TM1 and the second touch conductive layer TM2, and between the first sub-signal line 1631 and the second sub-signal line 1632. In the border area 100b, a first via 171 and a second via 172 may be provided in the fifth insulating layer 145. The orthographic projections of the first via 171 and the second via 172 on the substrate 120 do not overlap with the orthographic projection of the opening 151 on the substrate 120. The first sub-signal line 1631 and the second sub-signal line 1632 are electrically connected through the first via 171 and the second via 172.

[0105] For example, see Figure 7 In the border area 100b, a third via 173 may be provided in the fifth insulating layer 145. The third via 173 may also penetrate other insulating layers between the third conductive layer M3 and the second sub-signal line 1632. The second sub-signal line 1632 is electrically connected to the third conductive layer M3 through the third via 173 to switch the signal line 163 to the array substrate 106.

[0106] In some embodiments, see Figure 7The orthographic projection of the first sub-signal line 1631 on the substrate 120 overlaps with the orthographic projection of the opening 151 on the substrate 120. That is, the first sub-signal line 1631 and the opening 151 are arranged opposite to each other along the thickness direction of the substrate 120. In this way, the first sub-signal line 1631 does not need to be staggered with the opening 151, and there are more positions available for the first sub-signal line 1631, which is beneficial to improving the flexibility of the arrangement of the first sub-signal line 1631.

[0107] In some embodiments, see Figure 9 The first opening group 1501 is located on the side of the second opening group 1502 near the display area 100a. A portion of the opening 151 of the first opening group 1501 extends into the third interval region 153 of the second opening group 1502, and a portion of the opening 151 of the second opening group 1502 extends into the third interval region 153 of the first opening group 1501. In this way, the total size of the display panel 100 occupied by the first opening group 1501 and the second opening group 1502 along the display area 100a to the border area 100b is smaller, which is beneficial to reducing the width of the border area 100b along the display area 100a to the border area 100b, and thus facilitating the achievement of a narrow bezel.

[0108] It should be noted that the shapes of any two openings 151 may be the same or different. The dimensions of any two openings 151 along the circumference of the display area 100a may be the same or different. The dimensions of any two openings 151 along the distance from the display area 100a to the border area 100b may be the same or different. The dimensions of any two openings 151 along the thickness direction of the substrate 120 may be the same or different. The number of openings 151 in any two opening groups 150 may be the same or different.

[0109] In some embodiments, the opening 151 of the first opening group 1501 is the first opening, and the opening 151 of the second opening group 1502 is the second opening. The dimensions of the first opening and the second opening along the circumference of the display area 100a may be equal or unequal. The dimensions of the first opening and the second opening along the direction from the display area 100a to the border area 100b may be equal or unequal. The dimensions of the third spacing region 153 between two adjacent first openings and the third spacing region 153 between two adjacent second openings along the circumference of the display area 100a may be equal or unequal. In this embodiment, "unequal" can mean greater than or less than. For example, if the dimensions of the first opening and the second opening along the circumference of the display area 100a are unequal, the dimension of the first opening along the circumference of the display area 100a may be greater than the dimension of the second opening along the circumference of the display area 100a, or the dimension of the first opening along the circumference of the display area 100a may be less than the dimension of the second opening along the circumference of the display area 100a.

[0110] The array substrate 106 provided in the embodiments of this application will be described below.

[0111] See Figure 1 and Figure 7 Along the thickness direction of the substrate 120, the array substrate 106 may include a semiconductor layer, a first conductive layer, a second conductive layer M2, a third conductive layer M3, and a fourth conductive layer sequentially stacked on the substrate 120. An insulating layer may be disposed between each pair of adjacent layers among the semiconductor layer, the first conductive layer, the second conductive layer M2, the third conductive layer M3, and the fourth conductive layer. The materials of any two insulating layers may be the same or different. The insulating layer located between the second conductive layer M2 and the third conductive layer M3 may be a third insulating layer 143.

[0112] For example, the semiconductor layer includes the active layer of a thin-film transistor. The first conductive layer may include at least one of a scan line, a first electrode of a capacitor structure, a light-emitting control line, and the gate of the thin-film transistor. The second conductive layer M2 may include at least one of a reference line and a second electrode of a capacitor structure. The third conductive layer M3 may include the source and drain electrodes of the transistor. The fourth conductive layer may include a data line.

[0113] The first conductive layer, the second conductive layer M2, the third conductive layer M3, and the fourth conductive layer can be made of metals such as titanium, silver, copper, aluminum, and molybdenum, or alloys, or conductive oxides (such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), aluminum zinc oxide (AZO), zinc gallium oxide, titanium tantalum oxide, tin oxide, cadmium oxide, and indium oxide, or any one or more of these.

[0114] In some embodiments, see Figure 1 The array substrate 106 may include a planarization layer 146, which is located between the fourth conductive layer and the light-emitting unit. The planarization layer 146 provides good planar support for the light-emitting unit.

[0115] In some embodiments, a pixel limiting layer 147 may be provided on the array substrate 106. The pixel limiting layer 147 surrounds and forms a plurality of pixel openings. The plurality of pixel openings and a plurality of light-emitting units may be correspondingly arranged, and at least part of the light-emitting units may be located in the corresponding pixel openings.

[0116] In some embodiments, the display panel 100 may include a support layer located on the side of the substrate 120 opposite to the light-emitting unit, and the support layer provides support for the display panel 100. For example, the orthographic projection of the support layer on the substrate 120 does not overlap with the orthographic projection of the bending region 103b on the substrate 120, so as to avoid the support layer affecting the bending performance of the bending region 103b.

[0117] The following describes the light-emitting unit provided in this application.

[0118] In some embodiments, there may be multiple light-emitting units. For example, multiple light-emitting units may be arranged in an array. Multiple light-emitting units include, but are not limited to, red light-emitting units, green light-emitting units, and blue light-emitting units. In other examples, multiple light-emitting units may also include white light-emitting units.

[0119] For example, the light-emitting unit may include a first electrode, a light-emitting material layer, and a second electrode sequentially disposed away from the array substrate 106. One of the first electrode and the second electrode may be an anode, and the other may be a cathode. This embodiment of the application is described using an anode as the first electrode and a cathode as the second electrode.

[0120] For example, the light-emitting unit may also include one or more of a hole injection layer (HIL), a hole transport layer (HTL), an electron injection layer (EIL), an electron transport layer (ETL), a hole block layer (HBL), and an electron block layer (EBL).

[0121] The encapsulation layer provided in the embodiments of this application will be described below.

[0122] In some embodiments, the display panel 100 may further include at least one encapsulation layer located on the side of the light-emitting unit away from the substrate 120. The encapsulation layer is used to seal the light-emitting unit to prevent external water and oxygen from penetrating into the light-emitting unit and damaging the display panel 100.

[0123] In some embodiments, see Figure 1 The encapsulation layer may include a first encapsulation layer 131, which is located on the side of the light-emitting unit away from the substrate 120.

[0124] For example, the material of the first encapsulation layer 131 may include an inorganic material that is used to effectively block water and oxygen.

[0125] In some embodiments, the encapsulation layer may include a third encapsulation layer (e.g., organic encapsulation layer 133), which is located on the side of the first encapsulation layer 131 facing away from the substrate 120. The third encapsulation layer may be disposed at least in the display area 100a.

[0126] For example, the material of the third encapsulation layer may include an organic material, which can be used to cushion stress on the display panel 100. The third encapsulation layer may have fluidity before curing.

[0127] In some embodiments, the encapsulation layer may include a second encapsulation layer 132 located on the side of the organic encapsulation layer 133 facing away from the substrate 120.

[0128] For example, the material of the second encapsulation layer 132 may include inorganic materials that are used to effectively block water and oxygen.

[0129] The touch electrode 162 provided in the embodiments of this application will be described below.

[0130] In some embodiments, see Figure 1 The touch electrode 162 is located on the side of the encapsulation layer opposite to the substrate 120, and the touch electrode 162 is used to implement touch function. For example, the touch electrode 162 may include a first touch conductive layer TM1 and a second touch conductive layer TM2, and the second touch conductive layer TM2 is located on the side of the first touch conductive layer TM1 opposite to the substrate 120.

[0131] For example, one of the first touch conductive layer TM1 and the second touch conductive layer TM2 is a bridging layer, and the other of the first touch conductive layer TM1 and the second touch conductive layer TM2 can be a touch function layer.

[0132] For example, the first touch conductive layer TM1 and the first sub-signal line 1631 can be disposed in the same layer and made of the same material.

[0133] For example, the second touch conductive layer TM2 and the second sub-signal line 1632 can be disposed in the same layer and made of the same material.

[0134] For example, a fourth insulating layer 144 may be provided between the touch electrode 162 and the encapsulation layer. Figure 7 The fourth insulating layer 144 can be used to prevent subsequent etching from damaging the encapsulation layer.

[0135] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0136] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display panel, characterized in that, include: A display area and a border area, the border area being disposed on at least one side of the display area; the display panel includes: substrate; A retaining wall is provided on one side of the substrate and in the frame area; The barrier includes multiple blocking sections arranged along the direction from the display area to the frame area. Within each blocking section, multiple blocking parts are arranged at intervals along the circumferential direction of the display area, with a gap between adjacent blocking parts. Two adjacent blocking sections are defined as a first blocking section and a second blocking section, respectively. The blocking parts of the first blocking section and the gap between the blocking parts of the second blocking section are positioned opposite each other, and the blocking parts of the second blocking section and the gap between the blocking parts of the first blocking section are also positioned opposite each other. The first blocking part group is disposed on the side of the second blocking part group close to the display area, and the blocking part and the interval area of ​​the first blocking part group are respectively the first blocking part and the first interval area, and the blocking part and the interval area of ​​the second blocking part group are respectively the second blocking part and the second interval area; The dimension of the first interval region along the circumference of the display area is greater than the dimension of the second interval region along the circumference of the display area; The dimension of the first blocking portion along the circumference of the display area is smaller than the dimension of the second blocking portion along the circumference of the display area.

2. The display panel according to claim 1, characterized in that, The barrier includes a barrier body that extends circumferentially along the display area, and all the blocking portions are disposed on the barrier body; the blocking portions are constructed as grooves that penetrate at least through the side of the barrier body facing away from the substrate; the orthographic projection of the barrier on the substrate coincides with the orthographic projection of the barrier body on the substrate.

3. The display panel according to claim 1, characterized in that, The blocking portion is constructed as a protrusion, and the orthographic projection of the barrier on the substrate coincides with the orthographic projection of the protrusion on the substrate.

4. The display panel according to any one of claims 1-3, characterized in that, A portion of the first blocking portion group extends into the interval region of the second blocking portion group; a portion of the second blocking portion group extends into the interval region of the first blocking portion group.

5. The display panel according to claim 1, characterized in that, The dimension of the first blocking portion along the direction from the display area to the border area is smaller than the dimension of the second blocking portion along the direction from the display area to the border area.

6. The display panel according to claim 2, characterized in that, The retaining wall body includes a first sub-body and a second sub-body connected together. The first sub-body and the second sub-body are arranged along the direction from the display area to the border area. The first sub-body and the second sub-body are each provided with the groove. The display panel includes an organic encapsulation layer disposed on the side of the substrate facing the barrier wall. The organic encapsulation layer is disposed in the display area, covers the side of the first sub-body away from the substrate, and is disposed in the groove on the first sub-body.

7. The display panel according to claim 6, characterized in that, The orthographic projection of the organic encapsulation layer on the substrate does not overlap with the orthographic projection of the second sub-body on the substrate.

8. The display panel according to any one of claims 1-3, characterized in that, The frame area includes a first sub-area, and the retaining wall is disposed in the first sub-area; the display panel includes touch electrodes, signal lines and touch chips; the touch electrodes are disposed in the display area, the touch chip is disposed on the side of the retaining wall away from the display area, and part of the signal lines are disposed in the first sub-area; the touch electrodes and the touch chip are electrically connected through the signal lines.

9. The display panel according to claim 8, characterized in that, The orthographic projection of the signal line on the substrate overlaps with the orthographic projection of the blocking portion on the substrate, and part of the signal line is located on the side of the barrier wall away from the substrate; Alternatively, the orthographic projection of the signal line on the substrate overlaps with the orthographic projection of the spacing region on the substrate, but does not overlap with the orthographic projection of the blocking portion on the substrate.

10. The display panel according to claim 8, characterized in that, The display panel includes a first insulating layer and a second insulating layer. The first insulating layer and the second insulating layer are both disposed on the side of the touch electrode and the signal line away from the substrate. The second insulating layer is disposed on the side of the first insulating layer away from the substrate. The refractive index of the first insulating layer is less than that of the second insulating layer.

11. The display panel according to claim 10, characterized in that, The border area includes a second sub-area, which is located on the side of the first sub-area away from the display area, and the material of the second insulating layer includes an organic material. A plurality of opening groups are provided on the first insulating layer of the second sub-region, and the plurality of opening groups are arranged along the direction from the display area to the frame area; in the same opening group, the opening group includes a plurality of openings, and the plurality of openings are arranged at intervals along the circumference of the display area, with a third interval region between two adjacent openings; two adjacent opening groups are defined as a first opening group and a second opening group, and the openings of the first opening group are arranged opposite to the third interval region of the second opening group, and the openings of the second opening group are arranged opposite to the third interval region of the first opening group; The second insulating layer is disposed in at least a portion of the openings.

12. The display panel according to claim 11, characterized in that, The display panel includes a polarizer, which is disposed on the side of the second insulating layer opposite to the substrate, and the orthographic projection of the polarizer on the substrate is disposed within the orthographic projection of the second insulating layer on the substrate.

13. The display panel according to claim 12, characterized in that, The touch chip is located on the side of the second sub-area away from the display area, and some of the signal lines are located in the second sub-area; The signal line includes a first sub-signal line and a second sub-signal line that are electrically connected. The second sub-signal line is located on the side of the first sub-signal line that is away from the substrate. The orthographic projection of the second sub-signal line on the substrate does not overlap with the orthographic projection of the opening on the substrate. And / or, the orthographic projection of the first sub-signal line on the substrate overlaps with the orthographic projection of the opening on the substrate.

14. The display panel according to any one of claims 1-3, characterized in that, The orthographic projection of the blocking part on the substrate is a polygon; the polygon includes a first side, a second side, a third side and a fourth side connected end to end in sequence, the first side and the third side extend in the same direction and are arranged opposite to each other, the second side and the fourth side extend in the same direction and are arranged opposite to each other. The distance between the first side and the second side along the circumference of the display area gradually increases from the display area to the border area, while the distance between the third side and the fourth side along the circumference of the display area gradually decreases from the display area to the border area.

15. The display panel according to any one of claims 1-3, characterized in that, In the same group of blocking parts, the distance between two adjacent blocking parts ranges from 3μm to 10μm; And / or, the size of the blocking portion along the direction from the display area to the border area ranges from 5μm to 30μm; And / or, the size of the blocking portion along the circumferential direction of the display area ranges from 5μm to 30μm; And / or, the dimensions of the barrier wall along the direction from the display area to the frame area range from 30μm to 150μm; And / or, the dimensions of the barrier along the thickness direction of the substrate range from 10μm to 20μm.

16. The display panel according to claim 2, wherein the depth of the groove ranges from 1 μm to 10 μm.

17. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 16.

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