Display panel and display device

Abstract

The invention relates to a display panel and a display device, the display panel comprises a display area and a frame area, and the frame area is arranged on at least one side of the display area. The display panel comprises a substrate and a retaining wall, and the retaining wall is arranged on one side of the substrate and arranged in the frame area. The retaining wall comprises a plurality of retaining part groups which are arranged in the direction from the display area to the frame area. In the same blocking part group, the blocking part group comprises a plurality of blocking parts, the plurality of blocking parts are arranged at intervals in the circumferential direction of the display area, and an interval area is formed between every two adjacent blocking parts. Two adjacent blocking part groups are defined as a first blocking part group and a second blocking part group, the blocking parts of the first blocking part group and the interval areas of the second blocking part group are oppositely arranged, and the blocking parts of the second blocking part group and the interval areas of the first blocking part group are oppositely arranged. Therefore, according to the display panel and the display device provided by the invention, the packaging effect of the display panel can be improved.

Description

Technical Field

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

[0002] OLED (Organic Light Emitting Diode) display panel has many advantages such as full solid state, active luminescence, fast response speed, high contrast, no viewing angle limitation and flexible display. It is a new display technology developed in the mid-twentieth century and is widely used in people's daily production and life.

[0003] In the related art, the display panel includes a substrate, a plurality of light-emitting units and an encapsulation layer, wherein the plurality of light-emitting units are arranged on one side of the substrate, and the encapsulation layer is arranged on the side of the light-emitting unit away from the substrate, and the encapsulation layer can be provided to prevent water and oxygen from invading the light-emitting unit. However, the encapsulation effect of the above display panel needs to be improved. Summary of the invention

[0004] Based on this, it is necessary to provide a display panel and a display device, aiming to improve the packaging effect of the display panel.

[0005] In a first aspect, an embodiment of the present application provides a display panel, comprising: a display area and a frame area, wherein the frame area is arranged on at least one side of the display area. The display panel comprises a substrate and a retaining wall, wherein the retaining wall is arranged on one side of the substrate and in the frame area. The retaining wall comprises a plurality of retaining portion groups, and the plurality of retaining portion groups are arranged in a direction from the display area to the frame area. In the same retaining portion group, the retaining portion group comprises a plurality of retaining portions, and the plurality of retaining portions are arranged at intervals along the circumference of the display area, and a spacing area is provided between two adjacent retaining portions. The two adjacent retaining portion groups are defined as a first retaining portion group and a second retaining portion group, respectively, wherein the retaining portion of the first retaining portion group is arranged relative to the spacing area of ​​the second retaining portion group, and the retaining portion of the second retaining portion group is arranged relative to the spacing area of ​​the first retaining portion group.

[0006] The display panel provided in the embodiment of the present application can alleviate the overflow of the organic encapsulation layer from the display area to the frame area by providing a plurality of blocking portion groups, thereby facilitating improving the encapsulation effect of the display panel.

[0007] In a second aspect, an embodiment of the present application further provides a display device, which includes the display panel provided in the first aspect.

[0008] The display device provided in the embodiment of the present application includes a display panel. By providing a plurality of blocking portion groups, the overflow of the organic encapsulation layer from the display area to the frame area can be alleviated, thereby facilitating improving the encapsulation effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0010] Figure 2 A top view of the organic encapsulation layer and retaining wall provided in an embodiment of the present application.

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

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

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

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

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

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

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

[0018] Fig.10 A partial top view of the first insulating layer and the second insulating layer provided in an embodiment of the present application.

[0019] Fig.11 A schematic top view of a display panel located in a border area provided in an embodiment of the present application.

[0020] Fig.12 A partial top view of a signal line provided in an embodiment of the present application.

[0021] Description of reference numerals:

[0022] 100, display panel; 100a, display area; 100b, frame area; 101b, first sub-area; 102b, second sub-area; 103b, bending area; 101, retaining wall; 110, retaining portion group; 1101, first retaining portion group; 1102, second retaining portion group; 111, retaining portion; 1111, first retaining portion; 1112, second retaining portion; 112, spacing area; 1121, first spacing area; 1122, second spacing area; 113, retaining wall body; 1131, first sub-body; 1132, second sub-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 , fourth insulating layer; 145, fifth insulating layer; 146, planarizing layer; 147, pixel defining layer; 150, opening group; 1501, first opening group; 1502, second opening group; 151, opening; 153, third spacing area; 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 hole; 172, second via hole; 173, third via hole; B1, first side; B2, second side; B3, third side; B4, fourth side. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related 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 can be directly on the other element or there may be intervening elements. Further, when a layer is referred to as being "under" another layer, it can be directly under or there may be one or more intervening elements. It is also understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers or there may be one or more intervening elements.

[0026] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[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 only used to distinguish one element from another element. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present application.

[0028] It should also be understood that when interpreting an element, even if not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of the specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" can mean within one or more standard deviations, which are not limited here.

[0029] Furthermore, in the specification, the phrase “planar distribution schematic diagram” refers to a drawing when a target portion is viewed from above, and the phrase “cross-sectional schematic diagram” refers to a drawing when a section taken by vertically cutting the target portion is viewed from the side.

[0030] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0031] As described in the background technology section, in the related art, the display panel includes a substrate, a plurality of light-emitting units and an encapsulation layer. The plurality of light-emitting units are arranged on one side of the substrate, and the encapsulation layer is arranged on the side of the light-emitting unit away from the substrate. By setting the encapsulation layer, water and oxygen can be prevented from invading the light-emitting unit. The encapsulation layer may include a first encapsulation layer, a second encapsulation layer and a third encapsulation layer stacked in sequence in a direction away from the substrate. The first encapsulation layer and the second encapsulation layer are inorganic materials, and the second encapsulation layer is an organic material. The second encapsulation layer can be formed on the first encapsulation layer by inkjet printing and then cured.

[0032] However, the second encapsulation layer has fluidity before being cured. The fluid second encapsulation layer is easy to overflow from the center to the edge of the display panel, resulting in encapsulation failure.

[0033] Based on the above technical problems, the inventors have found that the retaining wall includes multiple blocking portion groups, and the multiple blocking portion groups are arranged in the direction from the display area to the frame area. In the same blocking portion group, the blocking portion group includes multiple blocking portions, and the multiple blocking portions are arranged at intervals along the circumference of the display area, and there is a spacing area between two adjacent blocking portions. The two adjacent blocking portion groups are defined as a first blocking portion group and a second blocking portion group, respectively. The blocking portion of the first blocking portion group is arranged relative to the spacing area of ​​the second blocking portion group, and the blocking portion of the second blocking portion group is arranged relative to the spacing area of ​​the first blocking portion group. In this way, by setting up multiple blocking portion groups, the overflow of the organic encapsulation layer from the display area to the frame area can be alleviated, which is beneficial to 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 described clearly and completely below in conjunction with the drawings in the embodiments of this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] Combined with Figure 1-12 The display panel 100 and the display device provided in the embodiments of the present application are described.

[0036] The embodiment of the present application provides a display device, which includes a display panel 100 in any of the following embodiments. Therefore, the display device also has the beneficial effects of the display panel 100 in the following embodiments, and the similarities can be understood by referring to the explanation of the display panel 100 below, which will not be repeated here.

[0037] Exemplarily, the display device can be a mobile phone or any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, industrial control equipment, medical display screens, touch interactive terminals, etc. The embodiments of the present application do not specifically limit this.

[0038] In some embodiments, the display panel 100 may include an organic light emitting diode display panel (OLED), a quantum dot light emitting diode display panel (QLED), a mini light emitting diode display (Mini LED), or a micro light emitting diode display (MicroLED). The embodiment of the present application is described by taking the display panel 100 as an OLED display panel as an example.

[0039] The display panel 100 provided in the embodiment of the present application is described below.

[0040] The embodiment of the present application provides a display panel 100, which may include an array substrate 106 ( Figure 7 ) and a light emitting unit located on one side of the array substrate 106. The array substrate 106 may be electrically connected to the light emitting unit. A plurality of driving units are provided in the array substrate 106, and the plurality of driving units may be arranged in an array, and the driving units are electrically connected to the light emitting units, and the driving units are used to provide driving current for the light emitting units. The driving units may include a thin film transistor (TFT) and a capacitor structure.

[0041] See also Figure 1 The display panel 100 includes a display area 100a and a frame area 100b, and the frame area 100b is arranged on at least one side of the display area 100a. The display area 100a can be used to display images, and the frame area 100b and the display area 100a can be arranged adjacent to each other. For example, the frame area 100b can be arranged around the periphery of the display area 100a.

[0042] For example, the frame area 100b may not display a picture, and the frame area 100b may form a "black border" surrounding the periphery of the display area 100a. Alternatively, at least part of the frame area 100b may be used to display a picture.

[0043] See also 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 that are subsequently disposed.

[0044] The retaining wall 101 provided in the embodiment of the present application is described below.

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

[0046] Exemplarily, the number of the blocking portion groups 110 may be 2, 3, 4, or any number greater than 4.

[0047] See also Figure 2 and Figure 3 In the same barrier portion group 110, the barrier portion group 110 may include a plurality of barrier portions 111, the plurality of barrier portions 111 are arranged at intervals along the circumference of the display area 100a, and a spacing area 112 is provided between two adjacent barrier portions 111. The two adjacent barrier portion groups 110 are defined as a first barrier portion group 1101 and a second barrier portion group 1102, the barrier portion 111 of the first barrier portion group 1101 is a first barrier portion 1111, the spacing area 112 of the first barrier portion group 1101 is a first spacing area 1121, the barrier portion 111 of the second barrier portion group 1102 is a second barrier portion 1112, and the spacing area 112 of the second barrier portion group 1102 is a second spacing area 1122. The first blocking portion 1111 is arranged opposite to the second spacing area 1122, and the second blocking portion 1112 is arranged opposite to the first spacing area 1121. In this way, the first blocking portion 1111 is conducive to alleviating the overflow of the organic encapsulation layer 133 from the second spacing area 1122 along the direction from the display area 100a to the frame area 100b, and the second blocking portion 1112 is conducive to alleviating the overflow of the organic encapsulation layer 133 from the first spacing area 1121 along the direction from the display area 100a to the frame 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 set 1101 is disposed on a side of the second blocking portion set 1102 close to the display area 100 a .

[0049] In some embodiments, see Figure 1, the blocking portion 111 is constructed as a protrusion, and the orthographic projection of the retaining wall 101 on the substrate 120 coincides with the orthographic projection of the protrusion on the substrate 120, that is, the retaining wall 101 can be formed by all the protrusions. 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 the flow speed is reduced under the action of the inner blocking portion 111, and the flow speed is reduced again when it flows to the outer blocking portion 111, thereby alleviating the overflow of the organic encapsulation layer 133 from the display area 100a to the frame area 100b, which is beneficial to improving the encapsulation effect of the display panel 100.

[0050] In some other embodiments, see Figure 5 and Figure 6 The retaining wall 101 may include a retaining wall body 113, which extends along the circumference of the display area 100a, and all the blocking parts 111 are arranged on the retaining wall body 113. The blocking part 111 is configured as a groove, which at least passes through the surface of the retaining wall body 113 on the side away from the substrate 120, and the orthographic projection of the retaining wall 101 on the substrate 120 coincides with the orthographic projection of the retaining wall body 113 on the substrate 120. The retaining wall 101 is formed by the retaining wall body 113 and the blocking parts 111 arranged on the retaining wall body 113. In this way, during the overflow of the organic encapsulation layer 133, the retaining wall body 113 can block the organic encapsulation layer 133 from overflowing outward. In addition, when the organic encapsulation layer 133 overflows to the side of the retaining wall body 113 away from the substrate 120, the organic encapsulation layer 133 will flow into the groove and change the flow direction of at least part of the organic encapsulation layer 133, and the groove sidewalls of the groove have 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, thereby better alleviating the overflow of the organic encapsulation layer 133 from the display area 100a to the frame area 100b, which is beneficial to improving the encapsulation effect of the display panel 100. Secondly, by setting a groove in the retaining wall body 113 to improve the blocking effect of the retaining wall body 113 on the overflow of the organic encapsulation layer 133, the groove may not increase the thickness of the display panel 100, and may not increase the width of the retaining wall body 113 along the display area 100a to the frame area 100b, thereby facilitating the thinning of the display panel 100 and achieving a narrow frame.

[0051] Exemplarily, the number of the retaining wall main body 113 can be one, and the retaining wall main body 113 can be provided with a groove to improve the blocking effect of the retaining wall main body 113 on the overflow of the organic encapsulation layer 133. Without providing multiple retaining wall main bodies 113, the retaining wall 101 can also effectively alleviate the overflow of the organic encapsulation layer 133 along the direction from the display area 100a to the frame area 100b, which is beneficial to reduce the width of the retaining wall 101 along the display area 100a to the frame area 100b, and is beneficial to achieve a narrow frame. Alternatively, the number of the retaining wall main body 113 can be multiple, and the multiple retaining wall main bodies 113 are arranged at intervals along the direction from the display area 100a to the frame area 100b, so as to better improve the blocking effect of the retaining wall 101 on the overflow of the organic encapsulation layer 133. The embodiment of the present application is described by taking one retaining wall main body 113 as an example.

[0052] In some examples, in at least one groove, the groove can penetrate the surface of the retaining wall body 113 facing away from the substrate 120, and the groove penetrates a part of the thickness of the retaining wall body 113, and the groove can be a blind groove, so that the depth of the groove is small, which is conducive to shortening the preparation time of the groove. In other examples, in at least one groove, the groove can penetrate the surface of the retaining wall body 113 facing away from the substrate 120 and the surface of the retaining wall body 113 facing the substrate 120, and the groove can completely penetrate the retaining wall body 113 along the thickness direction of the substrate 120, so that the depth of the groove is large, which is conducive to improving the overflow blocking effect of the groove on the organic encapsulation layer 133.

[0053] In some embodiments, see Figure 3 , part of the blocking part 111 of the first blocking part group 1101 extends to the spacing area 112 of the second blocking part group 1102, and part of the blocking part 111 of the second blocking part group 1102 extends to the spacing area 112 of the first blocking part group 1101. That is, part of the first blocking part 1111 can extend to the second spacing area 1122, and part of the second blocking part 1112 can extend to the first spacing area 1121. In this way, the total size of the display panel 100 occupied by the first blocking part 1111 and the second blocking part 1112 along the display area 100a to the frame area 100b can be made smaller, which is conducive to reducing the width of the frame area 100b of the display panel 100 along the display area 100a to the frame area 100b, and is conducive to achieving a narrow frame.

[0054] It should be noted that the shapes of any two blocking portions 111 may be the same or different. The sizes of any two blocking portions 111 along the circumference of the display area 100a may be the same or different. The sizes of any two blocking portions 111 along the display area 100a to the frame area 100b may be the same or different. The sizes 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 sizes of the first blocking portion 1111 and the second blocking portion 1112 along the circumferential direction of the display area 100 a may be equal, which helps to reduce the difficulty of preparing the first blocking portion 1111 and the second blocking portion 1112 .

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

[0057] In some embodiments, the sizes of the first spacing region 1121 and the second spacing region 1122 along the circumference of the display area 100 a may be equal, which is helpful to reduce the difficulty of preparing the first blocking portion 1111 and the second blocking portion 1112 .

[0058] In some other embodiments, the sizes 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 size of the first blocking portion 1111 along the circumference of the display area 100a may be larger than the size of the second blocking portion 1112 along the circumference of the display area 100a, or the size of the first blocking portion 1111 along the circumference of the display area 100a may be smaller than the size of the second blocking portion 1112 along the circumference of the display area 100a.

[0059] In some other embodiments, the sizes 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 size of the first blocking portion 1111 along the direction from the display area 100a to the border area 100b may be larger than the size of the second blocking portion 1112 along the direction from the display area 100a to the border area 100b, or the size of the first blocking portion 1111 along the direction from the display area 100a to the border area 100b may be smaller than the size of the second blocking portion 1112 along the direction from the display area 100a to the border area 100b.

[0060] In other embodiments, the sizes of the first spacing area 1121 and the second spacing area 1122 along the circumference of the display area 100a are not equal. For example, the size of the first spacing area 1121 along the circumference of the display area 100a is larger than the size of the second spacing area 1122 along the circumference of the display area 100a, or the size of the first spacing area 1121 along the circumference of the display area 100a is smaller than the size of the second spacing area 1122 along the circumference of the display area 100a.

[0061] See also Figure 4 In an embodiment in which the size of the first spacing area 1121 along the circumference of the display area 100a is larger than the size of the second spacing area 1122 along the circumference of the display area 100a, and the size of the first blocking portion 1111 along the circumference of the display area 100a is smaller than the size of the second blocking portion 1112 along the circumference of the display area 100a, the size of the inner spacing area 112 along the circumference of the display area 100a can be set larger, and the size of the outer spacing area 112 along the circumference of the display area 100a can be set smaller, and the size of the inner blocking portion 111 along the circumference of the display area 100a can be set smaller, and the size of the outer blocking portion 111 along the circumference of the display area 100a can be set smaller. The size of the blocking portion 111 along the circumferential direction of the display area 100a is set to be larger, thereby reducing the overflow blocking effect of the inner blocking portion group 110 on the organic encapsulation layer 133, and increasing the overflow blocking effect of the outer blocking portion group 110 on the organic encapsulation layer 133, so that the organic encapsulation layer 133 will not stop flowing suddenly and 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 (for example, slowly reduced from 17μm to 0μm), which is beneficial to reducing the difficulty of preparing the film layer subsequently formed on the edge of the organic encapsulation layer 133 and the thickness uniformity.

[0062] For example, see Figure 4 , taking the number of three blocking portion groups 110 as an example, the three blocking portion groups 110 are defined as the third blocking portion group, the fourth blocking portion group and the fifth blocking portion group, which are arranged along the direction from the display area 100a to the frame area 100b. The size range of the blocking portion 111 of the third blocking portion group along the direction from the display area 100a to the frame area 100b is 5μm-10μm, and the size range of the blocking portion 111 of the third blocking portion group 110 along the circumference of the display area 100a is 5μm-10μm. The size range of the blocking portion 111 of the fourth blocking portion group 110 along the direction from the display area 100a to the frame area 100b is 10μm-20μm, and the size range of the blocking portion 111 of the fourth blocking portion group 110 along the circumference of the display area 100a is 10μm-20μm. The barrier portions 111 of the fifth barrier portion group 110 have a size ranging from 20 μm to 30 μm along the direction from the display area 100 a to the frame area 100 b , and a size ranging from 20 μm to 30 μm along the circumference of the display area 100 a .

[0063] See also Figure 4 In an embodiment in which the size of the first blocking portion 1111 along the direction from the display area 100a to the frame area 100b is smaller than the size of the second blocking portion 1112 along the direction from the display area 100a to the frame area 100b, the size of the inner blocking portion 111 along the direction from the display area 100a to the frame area 100b can be set to be smaller, and the size of the outer blocking portion 111 along the direction from the display area 100a to the frame area 100b can be set to be larger, thereby reducing the overflow blocking effect of the inner blocking portion group 110 on the organic encapsulation layer 133, and increasing the overflow blocking effect of the outer blocking portion group 110 on the organic encapsulation layer 133, so that the organic encapsulation layer 133 will not stop flowing suddenly and too quickly during the overflow process, but will stop flowing slowly, so that the cut-off height of the organic encapsulation layer 133 is smoothly reduced, which is beneficial to reducing the difficulty of preparing the film layer subsequently formed on the edge of the organic encapsulation layer 133 and the thickness uniformity.

[0064] In an embodiment where the blocking portion 111 is raised, the organic encapsulation layer 133 may be located in at least a portion of the spacing region 112 , 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, in the embodiment where the retaining wall 101 includes the retaining wall body 113, the organic encapsulation layer 133 may be blocked on the side of the retaining wall 101 facing the display area 100a. Alternatively, the organic encapsulation layer 133 may cover a portion of the side of the retaining wall body 113 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 to each other. The first sub-body 1131 and the second sub-body 1132 are arranged along the direction from the display area 100a to the frame area 100b. The first sub-body 1131 is located on the side of the second sub-body 1132 close to the display area 100a. The first sub-body 1131 and the second sub-body 1132 are both provided with a blocking portion 111 (i.e., a groove). Figure 6 In the figure, since the organic encapsulation layer 133 covers the first sub-body 1131 and the groove on the first sub-body 1131, the first sub-body 1131 and the groove on the first sub-body 1131 are displayed as dotted lines to indicate that the first sub-body 1131 and the groove on the first sub-body 1131 are perspective effects.

[0066] For some examples, see Figure 6, the organic encapsulation layer 133 covers the side of the first sub-body 1131 away from the substrate 120, and the organic encapsulation layer 133 is arranged in the 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 but does not cover the second sub-body 1132. In this way, the organic encapsulation layer 133 stops flowing through the groove on the first sub-body 1131, preventing the organic encapsulation layer 133 from overflowing and affecting the encapsulation effect of the organic encapsulation layer 133. In addition, by arranging redundant grooves on the second sub-body 1132, it can be effectively ensured that the organic encapsulation layer 133 cannot completely cross the retaining wall 101, which can improve the allowable error of the preparation process of the retaining wall 101 and reduce the difficulty of preparing the retaining wall 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 arranged in the grooves on the first sub-body 1131 and the second sub-body 1132. In this way, no redundant grooves are set on the retaining wall body 113, which is beneficial to reducing the width of the retaining wall body 113 along the display area 100a to the border area 100b, thereby reducing the width of the border area 100b, which is beneficial to achieve a narrow border.

[0068] In some embodiments, at least a portion of the retaining wall 101 may be provided 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 preparation process of the retaining wall 101 and reducing the preparation cost.

[0069] It should be noted that the "same layer and same material" in the embodiments of the present application means that the base film layer is formed of the same material, and after the base film layer is patterned and / or processed by other processes, different parts of the base film layer are respectively formed into multiple structural film layers. The processing processes for forming different structural film layers can be the same or different, and the different structural film layers formed 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 arranged in the display area 100a, and the touch chip is arranged on the side of the retaining wall 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. Part of the signal line 163 can be arranged in the first sub-area 101b to realize signal transmission between the touch electrode 162 and the touch chip through the signal line 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, and part of the signal line 163 is located on the side of the blocking wall 101 away from the substrate 120. In the embodiment where the blocking portion 111 is a protrusion, part of the signal line 163 may be located on the side of the protrusion away from the substrate 120. In the embodiment where the blocking portion 111 is a groove, part of the signal line 163 may be located in the groove, and the groove may penetrate a part of the thickness of the blocking wall body 113, so that the depth of the groove is small, thereby reducing the risk of breaking the signal line 163 located in the groove, which is conducive to preventing 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, part of the signal line 163 may 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. In this way, the organic encapsulation layer 133 is provided in the groove of the first sub-body 1131, and the depth of the signal line 163 extending into the groove is relatively small, thereby reducing the risk of breakage of the signal line 163 located in the groove. In addition, the signal line 163 is located outside the groove of the second sub-body 1132, thereby preventing the signal line 163 from extending into the groove of the second sub-body 1132 and breaking.

[0072] In some other embodiments, the orthographic projection of the signal line 163 on the substrate 120 overlaps with the orthographic projection of the spacing area 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 the embodiment where the blocking portion 111 is a protrusion, the signal line 163 passes through the spacing area 112 without covering the protrusion, thereby preventing the protrusion from causing the signal line 163 to break. In the embodiment where the blocking portion 111 is a groove, the signal line 163 covers the surface of the side of the blocking wall body 113 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 on the substrate 120 may be a polygon, a circle, an ellipse, or other irregular shapes.

[0074] In an embodiment where the orthographic projection of the blocking portion 111 on the substrate 120 is a polygon, the boundary of the polygon is relatively clear, and the relative position relationship between each side of the polygon and the cut-off boundary of the organic encapsulation layer 133 is relatively easy to observe. It is relatively easy to determine whether the organic encapsulation layer 133 overflows the retaining wall 101, which is beneficial to the printing accuracy monitoring of the organic encapsulation layer 133.

[0075] For example, the polygon can be a quadrilateral ( Figure 2 , quadrilaterals can include rhombus, square or rectangle, etc.), pentagon, hexagon ( Figure 3 and Figure 4), octagon, etc.

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

[0077] See also 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 have the same extension direction, and the first side B1 and the third side B3 are arranged oppositely, the second side B2 and the fourth side B4 have the same extension direction, and the second side B2 and the fourth side B4 are arranged oppositely. The first side B1 and the second side 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 frame area 100b, and 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 frame 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 frame area 100b.

[0078] For example, see Figure 2 In the same blocking portion group 110, the distance d3 between two adjacent blocking portions 111 ranges from 3 μm to 10 μm, thereby preventing the distance between two adjacent blocking portions 111 from being too small, which is beneficial to reducing the difficulty of setting the blocking portions 111. It can also prevent the distance between two adjacent blocking portions 111 from being too large, which is beneficial to increasing the arrangement density of the blocking portions 111 and improving the blocking effect of the blocking portion group 110.

[0079] For example, in the same barrier portion group 110 , the distance d3 between two adjacent barrier portions 111 may be 3 μm, 5 μm, 7 μm, 9 μm, 10 μm, or any value between 3 μm and 10 μm.

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

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

[0082] For example, see Figure 2 The size d1 of the blocking portion 111 along the circumference of the display area 100a ranges from 5μm to 30μm, thereby preventing the size of the blocking portion 111 along the circumference of the display area 100a from being too small, which is beneficial to improving the blocking effect of the blocking portion 111. In addition, it can also prevent the size of the blocking portion 111 along the circumference of the display area 100a from being too large, which is beneficial to improving the arrangement density of the blocking portion 111.

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

[0084] Exemplarily, the size of the retaining wall 101 along the direction from the display area 100a to the border area 100b ranges from 30μm to 150μm, thereby preventing the size of the retaining wall 101 along the direction from the display area 100a to the border area 100b from being too small, which is beneficial to reducing the difficulty of setting up the blocking part 111. In addition, it can also prevent the size of the retaining wall 101 along the direction from the display area 100a to the border area 100b from being too large, which is beneficial to achieving a narrow border.

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

[0086] Exemplarily, the dimension of the retaining wall 101 along the thickness direction of the substrate 120 ranges from 10 μm to 20 μm, thereby preventing the retaining wall 101 from being too small along the thickness direction of the substrate 120 and improving the blocking effect of the retaining wall 101 on the organic encapsulation layer 133. In addition, it can also prevent the retaining wall 101 from being too large along the thickness direction of the substrate 120, which is beneficial to the thinness of the display panel 100.

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

[0088] Exemplarily, in an embodiment where the blocking portion 111 is a groove, the depth of the groove ranges from 1 μm to 10 μm, thereby preventing the depth of the groove from being too shallow, which is beneficial to improving the blocking effect of the groove on the organic encapsulation layer 133. In addition, the depth of the groove can be avoided from being too deep, which can shorten the preparation time of the groove.

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

[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. The first insulating layer 141 and the second insulating layer 142 can be located in the display area 100a and the frame area 100b. The first insulating layer 141 is disposed on the side of the touch electrode 162 and the signal line 163 away from the substrate 120, and the second insulating layer 142 is disposed on the side of the first insulating layer 141 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 conducive to improving the light extraction efficiency of the display panel 100.

[0091] Exemplarily, the material of the first insulating layer 141 may include transparent optical glue.

[0092] Exemplarily, the material of the second insulating layer 142 includes an organic material, and the second insulating layer 142 may have fluidity before being cured.

[0093] In some embodiments, see Figure 8 and Fig. 9 The frame area 100b includes a second sub-area 102b, which is disposed on a side of the first sub-area 101b away from the display area 100a. A plurality of opening groups 150 may be disposed on the first insulating layer 141 disposed in the second sub-area 102b, and the plurality of opening groups 150 are arranged along the direction from the display area 100a to the frame area 100b. In the same opening group 150, the opening group 150 includes a plurality of openings 151, and the plurality of openings 151 are arranged at intervals along the circumference of the display area 100a. A third spacing area 153 is provided between two adjacent openings 151. In this way, 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 quickly and causing the edge of the second insulating layer 142 to be too thin, which is beneficial to improving the thickness uniformity of the edge of the second insulating layer 142 and improving the tightness of the fit between the polarizer 161 subsequently arranged on the second insulating layer 142 and the second insulating layer 142.

[0094] Exemplarily, the number of the opening groups 150 may be 2, 3, 4, or any number greater than 4.

[0095] See also Fig. 9 , define two adjacent opening groups 150 as a first opening group 1501 and a second opening group 1502, the openings 151 of the first opening group 1501 are arranged opposite to the third spacing area 153 of the second opening group 1502, so that the openings 151 of the first opening group 1501 are conducive to alleviating the second insulating layer 142 from the third spacing area of ​​the second opening group 1502 to flow out too quickly from the display area 100a to the frame area 100b, and the openings 151 of the second opening group 1502 are arranged opposite to the third spacing area 153 of the first opening group 1501, so that the openings 151 of the second opening group 1502 are conducive to alleviating the second insulating layer 142 from the third spacing area of ​​the first opening group 1501 to flow out too quickly from the third spacing area of ​​the first opening group 1501 to the frame area 100b, thereby making the multiple opening groups 150 have a better effect of reducing the outflow speed of the second insulating layer 142.

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

[0097] Exemplarily, the opening 151 at least penetrates the surface of the first insulating layer 141 facing away from 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 area 103b, which is located on a side of the second sub-area 102b away from the display area 100a. By bending the bent display panel 100, part of the display panel 100 can be bent to the backlight surface of the display panel 100, so that the frame width of the display device can be reduced.

[0099] Fig.1114 is a top view of a portion of the frame area 100b, wherein the dotted line A shows the boundary of the display area 100a, the dotted line B shows the boundary of the organic film layers such as the planarization layer 146 and the pixel defining layer 147, the dotted boxes C and D show the area where the retaining wall body 113 is located, the dotted line E shows the boundary of the first encapsulation layer 131 and / or the second encapsulation layer 132, the dotted line F shows the boundary of the polarizer 161, the dotted line G shows the boundary of the second insulating layer 142, the dotted box H shows the area where the plurality of openings 151 are located, and the dotted box I shows the third via hole 173 ( Figure 8 ), the dotted line J shows the boundary of the inorganic insulating layer in the array substrate 106, the area between the dotted line K and the dotted line L shows the area where the bending area 103b is located, and the dotted line M shows the boundary of the supporting layer.

[0100] In some embodiments, see Figure 8 and Fig.11 The display panel 100 may include a polarizer 161, which is disposed on a side of the second insulating layer 142 away from the substrate 120, and 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. In this way, 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 facilitating the improvement of the tightness of the fit between the edge of the polarizer 161 and the second insulating layer 142, and reducing bubbles between the edge of the polarizer 161 and the second insulating layer 142.

[0101] In some embodiments, the touch chip is disposed on the side of the second sub-area 102b away from the display area 100a, and the signal line 163 needs to pass through the second sub-area 102b to achieve electrical connection with the touch chip. Part of the signal line 163 can be disposed in the second sub-area 102b. 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 a 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 the 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 pass through the first insulating layer 141 at the opening 151 and corrode the second sub-signal line 1632. In the 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 corrode the second sub-signal line 1632, which can easily cause touch failure.

[0103] In some embodiments, see Figure 7 and Fig.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 disposed 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 frame area 100b, a first via hole 171 and a second via hole 172 may be disposed in the fifth insulating layer 145, and the orthographic projections of the first via hole 171 and the second via hole 172 on the substrate 120 do not overlap with the orthographic projection of the opening 151 on the substrate 120, and the first sub-signal line 1631 and the second sub-signal line 1632 are electrically connected through the first via hole 171 and the second via hole 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 connect 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 relative 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 more setting positions are available for the first sub-signal line 1631, which is conducive to improving the setting flexibility of the first sub-signal line 1631.

[0107] In some embodiments, see Fig. 9 , the first opening group 1501 is arranged on the side of the second opening group 1502 close to the display area 100a. Part of the openings 151 of the first opening group 1501 extend into the third spacing area 153 of the second opening group 1502, and part of the openings 151 of the second opening group 1502 extend into the third spacing area 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 from the display area 100a to the frame area 100b can be made smaller, which is beneficial to reducing the width of the frame area 100b from the display area 100a to the frame area 100b, and is beneficial to achieving a narrow frame.

[0108] It should be noted that the shapes of any two openings 151 may be the same or different. The sizes of any two openings 151 along the circumference of the display area 100a may be the same or different. The sizes of any two openings 151 along the display area 100a to the frame area 100b may be the same or different. The sizes 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 a first opening, and the opening 151 of the second opening group 1502 is a second opening. The sizes of the first opening and the second opening along the circumference of the display area 100a may be equal or unequal. The sizes of the first opening and the second opening along the direction from the display area 100a to the frame area 100b may be equal or unequal. The sizes of the third spacing area 153 between two adjacent first openings and the third spacing area 153 between two adjacent second openings along the circumference of the display area 100a may be equal or unequal. Among them, "unequal" in the embodiments of the present application may refer to greater than or less than. Taking the unequal sizes of the first opening and the second opening along the circumference of the display area 100a as an example, the size of the first opening along the circumference of the display area 100a may be greater than the size of the second opening along the circumference of the display area 100a, or the size of the first opening along the circumference of the display area 100a may be smaller than the size of the second opening along the circumference of the display area 100a.

[0110] The array substrate 106 provided in the embodiment of the present application is described below.

[0111] See also 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 stacked sequentially on the substrate 120, and an insulating layer may be provided between each adjacent two layers of 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. Among them, the insulating layer located between the second conductive layer M2 and the third conductive layer M3 may be the third insulating layer 143.

[0112] Exemplarily, the semiconductor layer includes an 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 a gate of a 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 a source and drain of a transistor. The fourth conductive layer may include a data line.

[0113] Among them, 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, molybdenum, or alloys, or conductive oxides (such as indium tin oxide (Indium Tin Oxide, abbreviated as ITO), indium zinc oxide (Indium Zinc Oxide, abbreviated as IZO), zinc oxide (ZnO), aluminum zinc oxide (Aluminum ZincOxid; abbreviated as AZO)), zinc gallium oxide, titanium tantalum oxide, tin oxide, cadmium oxide, indium oxide, any one or more.

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

[0115] In some embodiments, a pixel defining layer 147 may be provided on the array substrate 106 , and the pixel defining layer 147 encloses a plurality of pixel openings. The plurality of pixel openings and the plurality of light emitting units may be provided correspondingly, and at least a portion of the light emitting unit may be located in the corresponding pixel opening.

[0116] In some embodiments, the display panel 100 may include a supporting layer, which is located on a side of the substrate 120 away from the light-emitting unit, and the supporting layer supports the display panel 100. Exemplarily, the orthographic projection of the supporting layer on the substrate 120 does not overlap with the orthographic projection of the bending zone 103b on the substrate 120, so as to avoid the supporting layer affecting the bending performance of the bending zone 103b.

[0117] The light-emitting unit provided in the implementation of the present application is described below.

[0118] In some embodiments, there may be multiple light-emitting units. For example, the multiple light-emitting units may be arranged in an array. The 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, the multiple light-emitting units may also include white light-emitting units.

[0119] Exemplarily, the light emitting unit may include a first electrode, a light emitting material layer, and a second electrode sequentially arranged away from the array substrate 106. One of the first electrode and the second electrode may be an anode, and the other of the first electrode and the second electrode may be a cathode. The embodiment of the present application is described by taking the first electrode as an anode and the second electrode as a cathode as an example.

[0120] Exemplarily, the light-emitting unit may further 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 blocking layer (HBL) and an electron blocking layer (EBL).

[0121] The encapsulation layer provided in the embodiments of the present application is described below.

[0122] In some embodiments, the display panel 100 may further include at least one encapsulation layer, which is located on the side of the light-emitting unit away from the substrate 120 and 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 , and the first encapsulation layer 131 is located on a 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, and the inorganic material is used to effectively block water and oxygen.

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

[0126] For example, the material of the third encapsulation layer may include an organic material, and the organic material may be used to buffer the stress of the display panel 100. The third encapsulation layer may have fluidity before being cured.

[0127] In some embodiments, the encapsulation layer may include a second encapsulation layer 132 , and the second encapsulation layer 132 is located on a 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 an inorganic material, and the inorganic material is used to effectively block water and oxygen.

[0129] The touch electrode 162 provided in the embodiment of the present application is described below.

[0130] In some embodiments, see Figure 1 The touch electrode 162 is located on the side of the packaging layer away from the substrate 120, and the touch electrode 162 is used to implement the touch function. Exemplarily, 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 away from the substrate 120.

[0131] Exemplarily, one of the first touch conductive layer TM1 and the second touch conductive layer TM2 is a bridge layer, and the other of the first touch conductive layer TM1 and the second touch conductive layer TM2 may be a touch function layer.

[0132] Exemplarily, the first touch conductive layer TM1 and the first sub-signal line 1631 may be provided in the same layer and with the same material.

[0133] Exemplarily, the second touch conductive layer TM2 and the second sub-signal line 1632 may be provided in the same layer and with the same material.

[0134] For example, a fourth insulating layer 144 ( Figure 7 ), the fourth insulating layer 144 can be used to prevent subsequent etching from damaging the packaging layer.

[0135] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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 above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: A display area and a frame area, wherein the frame area is provided on at least one side of the display area; the display panel comprises: substrate; A retaining wall is disposed on one side of the substrate and in the frame area; Wherein, the retaining wall includes a plurality of blocking portion groups, and the plurality of blocking portion groups are 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, and the plurality of blocking portions are arranged at intervals along the circumference of the display area, and a spacing area is provided between two 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 are arranged opposite to the spacing area of ​​the second blocking portion group, and the blocking portions of the second blocking portion group are arranged opposite to the spacing area of ​​the first blocking portion group.

2. The display panel according to claim 1, characterized in that: The retaining wall includes a retaining wall main body, which extends along the circumference of the display area, and all the blocking parts are arranged on the retaining wall main body; the blocking part is constructed as a groove, and the groove at least passes through the surface of the retaining wall main body facing away from the substrate; the orthographic projection of the retaining wall on the substrate coincides with the orthographic projection of the retaining wall main body on the substrate.

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

4. The display panel according to any one of claims 1 to 3, characterized in that: Part of the blocking portions of the first blocking portion group extends into the spaced region of the second blocking portion group; and part of the blocking portions of the second blocking portion group extends into the spaced region of the first blocking portion group.

5. The display panel according to any one of claims 1 to 3, characterized in that: The first blocking portion group is arranged on a side of the second blocking portion group close to the display area, the blocking portion and the spacing area of ​​the first blocking portion group are respectively a first blocking portion and a first spacing area, and the blocking portion and the spacing area of ​​the second blocking portion group are respectively a second blocking portion and a second spacing area; The sizes of the first blocking portion and the second blocking portion along the circumference of the display area are unequal, and the sizes of the first spacing area and the second spacing area along the circumference of the display area are unequal.

6. The display panel according to claim 5, characterized in that: The size of the first spacing area along the circumference of the display area is greater than the size of the second spacing area along the circumference of the display area; A size of the first blocking portion along the circumference of the display area is smaller than a size of the second blocking portion along the circumference of the display area.

7. The display panel according to claim 6, characterized in that: A dimension of the first blocking portion along a direction from the display area to the frame area is smaller than a dimension of the second blocking portion along a direction from the display area to the frame area.

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

9. The display panel according to claim 8, characterized in that: An orthographic projection of the organic encapsulation layer on the substrate does not overlap with an orthographic projection of the second sub-body on the substrate.

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

11. The display panel according to claim 10, 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 a side of the blocking wall away from the substrate; Alternatively, the orthographic projection of the signal line on the substrate overlaps with the orthographic projection of the spacing area on the substrate, and does not overlap with the orthographic projection of the blocking portion on the substrate.

12. The display panel according to claim 10, characterized in that: The display panel comprises a first insulating layer and a second insulating layer, wherein the first insulating layer and the second insulating layer are both arranged on a side of the touch electrode and the signal line away from the substrate, and the second insulating layer is arranged on a side of the first insulating layer away from the substrate; The refractive index of the first insulating layer is smaller than the refractive index of the second insulating layer.

13. The display panel according to claim 12, characterized in that: The frame area includes a second sub-area, the second sub-area is arranged on a 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 provided in the second sub-area, 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, and a third spacing area is provided between two adjacent openings; two adjacent opening groups are defined as a first opening group and a second opening group, the openings of the first opening group are arranged opposite to the third spacing area of ​​the second opening group, and the openings of the second opening group are arranged opposite to the third spacing area of ​​the first opening group; The second insulating layer is disposed in at least a portion of the openings.

14. The display panel according to claim 13, characterized in that: The display panel comprises a polarizer, which is arranged on a side of the second insulating layer away from the substrate, and an orthographic projection of the polarizer on the substrate is arranged within an orthographic projection of the second insulating layer on the substrate.

15. The display panel according to claim 14, characterized in that: The touch chip is arranged at a side of the second sub-area away from the display area, and part of the signal lines are arranged in the second sub-area; The signal line comprises a first sub-signal line and a second sub-signal line which are electrically connected, the second sub-signal line being arranged on a side of the first sub-signal line away from the substrate, and an orthographic projection of the second sub-signal line on the substrate does not overlap with an orthographic projection of the opening on the substrate; And / or, an orthographic projection of the first sub-signal line on the substrate overlaps with an orthographic projection of the opening on the substrate.

16. The display panel according to any one of claims 1 to 3, characterized in that: The orthographic projection of the blocking portion 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 have the same extension direction and are arranged opposite to each other, and the second side and the fourth side have the same extension 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 frame area, and 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 frame area.

17. The display panel according to any one of claims 1 to 3, characterized in that: In the same blocking portion group, the distance between two adjacent blocking portions ranges from 3 μm to 10 μm; And / or, the size of the blocking portion along the direction from the display area to the frame area ranges from 5 μm to 30 μm; And / or, the size of the blocking portion along the circumference of the display area ranges from 5 μm to 30 μm; And / or, the size of the retaining wall along the direction from the display area to the frame area ranges from 30 μm to 150 μm; And / or, a size of the retaining wall along the thickness direction of the substrate ranges from 10 μm to 20 μm. 18 . The display panel according to claim 2 , wherein a depth of the groove is in a range of 1 μm to 10 μm.

19. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 18.

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