Display module and display panel
By designing an anti-overflow structure in the bezel area of the display module, the problem of poor appearance caused by ink overflow was solved, achieving the effects of improved yield and narrower bezel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HEFEI VISIONOX TECH CO LTD
- Filing Date
- 2025-01-21
- Publication Date
- 2026-07-21
AI Technical Summary
Ink spillage can affect the appearance of the display module, causing defects such as white spots and jagged edges, and reducing product yield.
An anti-overflow structure is designed in the bezel area of the display module, including a first groove that is continuously distributed and surrounds the display area, and a row of second grooves that are discretely distributed and surround the display area. The anti-overflow structure occupies less space and can effectively prevent ink overflow.
It prevents ink spillage, avoids poor appearance, improves the yield of display modules, and helps to narrow the bezel.
Smart Images

Figure CN122431044A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of display technology, and more specifically, to a display module and a display panel. Background Technology
[0002] Ink overflow is a common problem during the manufacturing process of display modules. Ink overflow affects the appearance of the display module, causing defects such as white spots and jagged edges in the bezel area, thus reducing the product yield. Summary of the Invention
[0003] In order to at least overcome the above-mentioned shortcomings in the prior art, the purpose of this application is to provide a display module and a display panel.
[0004] In a first aspect, embodiments of this application provide a display module, the display module including a display area and a border area surrounding the display area, the display module further including:
[0005] The display substrate includes a dam structure disposed in the frame area, the dam structure surrounding the periphery of the display area;
[0006] An encapsulation layer is located on the display substrate;
[0007] The touch function layer is located on the side of the encapsulation layer away from the display substrate;
[0008] An optical adhesive layer is located on the side of the touch function layer away from the display substrate. The optical adhesive layer includes an anti-overflow structure disposed in the bezel area. The anti-overflow structure includes a first groove that is continuously distributed and surrounds the display area, and a row of second grooves that surround the display area and are discretely distributed on the side of the first groove facing the display area.
[0009] In one possible implementation, the first groove is serrated on the side facing the display area, and the second groove corresponds to the serrations in the serration.
[0010] Preferably, in the direction from the border area to the display area, the size of the anti-overflow structure ranges from 25um to 35um;
[0011] Preferably, in the direction from the border area toward the display area, the maximum size of the first groove ranges from 8µm to 20µm;
[0012] Preferably, the shape of the second groove projected onto the display substrate is a square, and the side length of the second groove ranges from 7um to 10um.
[0013] In one possible implementation, the first groove includes a first side and a second side forming a serrated shape, and the second groove includes a third side and a fourth side connected together, wherein the first side is parallel to the third side and the second side is parallel to the fourth side.
[0014] Preferably, the distance between the first side and the third side, and the distance between the second side and the fourth side, are 5µm-6.5µm.
[0015] In one possible implementation, the border area includes a first border area, a second border area, a third border area, and a fourth border area connected in sequence, wherein the first border area is opposite to the third border area, the second border area is opposite to the fourth border area, and the display substrate further includes a bending area connected to the first border area.
[0016] Preferably, the dam structure includes a first dam and a second dam, wherein the second dam is located on the side of the first dam away from the display area.
[0017] In one possible implementation, the overflow prevention structure is located on the side of the second dam away from the display area;
[0018] In the second border area, the third border area, and the fourth border area, there is a first distance between the orthographic projection of the anti-overflow structure on the display substrate and the orthographic projection of the second dam on the display substrate;
[0019] In the first border area, there is a second distance between the orthographic projection of the anti-overflow structure on the display substrate and the orthographic projection of the second dam on the display substrate, wherein the first distance and the second distance are different;
[0020] Preferably, the first distance is greater than the second distance.
[0021] In one possible implementation, the orthographic projection of the anti-overflow structure on the display substrate lies within the orthographic projection of the second dam on the display substrate.
[0022] In one possible implementation, in the second border area, the third border area, and the fourth border area, the anti-overflow structure is located on the side of the second dam away from the display area;
[0023] In the first border area, the orthographic projection of the anti-overflow structure on the display substrate is located within the orthographic projection of the second dam on the display substrate.
[0024] In one possible implementation, in the second border area, the third border area, and the fourth border area, the orthogonal projection of the anti-overflow structure on the display substrate is located within the orthogonal projection of the second dam on the display substrate.
[0025] In the first border area, the overflow prevention structure is located on the side of the second dam away from the display area.
[0026] In a second aspect, embodiments of this application also provide a display panel, the display panel including the display module described in any one of the first aspects, and the display panel further including a polarizer and a support film;
[0027] The support film is located on the side of the display substrate away from the encapsulation layer;
[0028] The polarizer is located on the side of the optical adhesive layer away from the encapsulation layer;
[0029] The anti-overflow structure's orthogonal projection on the display substrate lies within the orthogonal projection of the polarizer on the display substrate.
[0030] In one possible implementation, in the first border area, there is a third distance between the orthogonal projection of the anti-overflow structure onto the display substrate and the edge of the orthogonal projection of the polarizer onto the display substrate.
[0031] Preferably, the range of the third distance is 40um-64um.
[0032] Based on any of the above aspects, the display module and display panel provided in this application embodiment include a display substrate, an encapsulation layer, a touch function layer, and an optical adhesive layer. The optical adhesive layer includes an anti-overflow structure disposed in the bezel area. The anti-overflow structure includes a first groove continuously distributed and surrounding the display area, and a row of second grooves distributed discretely around the display area and located on the side of the first groove facing the display area. On the one hand, the anti-overflow structure includes only one row of second grooves, occupying a small space, which is beneficial for narrowing the bezel of the display module. On the other hand, the above-mentioned distribution of the anti-overflow structure can prevent ink overflow, avoiding appearance defects such as white spots and jagged edges caused by ink overflow, and improving the yield of the display module. Attached Figure Description
[0033] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings required in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0034] Figure 1 This is a schematic diagram of the area distribution of the display module provided in the embodiments of this application;
[0035] Figure 2 This is one of the schematic diagrams of the cross-sectional structure of the display module in the bezel area provided in the embodiments of this application;
[0036] Figure 3 A possible structural diagram of the anti-overflow structure provided in the embodiments of this application;
[0037] Figure 4 One of the schematic diagrams showing the relative position of the anti-overflow structure within the frame area provided in the embodiments of this application;
[0038] Figure 5 A second schematic diagram showing the relative position of the anti-overflow structure within the frame area provided in the embodiments of this application;
[0039] Figure 6 The third schematic diagram showing the relative position of the anti-overflow structure within the frame area provided in the embodiments of this application;
[0040] Figure 7 This is the second schematic diagram of the cross-sectional structure of the display module in the bezel area provided in the embodiments of this application;
[0041] Figure 8 Fourth schematic diagram showing the relative position of the anti-overflow structure within the frame area provided in the embodiments of this application;
[0042] Figure 9 Fifth schematic diagram showing the relative position of the anti-overflow structure within the frame area provided in the embodiments of this application;
[0043] Figure 10 Sixth schematic diagram showing the relative position of the anti-overflow structure within the frame area provided in the embodiments of this application;
[0044] Figure 11 This is a schematic diagram of a display panel provided in an embodiment of this application. Detailed Implementation
[0045] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0046] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0047] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0048] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0049] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0050] It should be noted that, where there is no conflict, different features in the embodiments of this application can be combined with each other.
[0051] To address the technical problems mentioned in the background section, this application provides a display module 10. Please refer to... Figure 1 , Figure 2 and Figure 3 The display module 10 includes a display area AA for displaying images and a border area BA surrounding the display area AA. The shape of the display area AA includes, but is not limited to, rectangle, ellipse, rhombus, etc.
[0052] In this embodiment, the display module 10 further includes a display substrate 110, an encapsulation layer 130, a touch function layer 140, and an optical adhesive layer 150. The display substrate 110 includes a substrate, an array driving layer, and a light-emitting device layer stacked together. The array driving layer includes multiple conductive metal layers and an insulating layer located between two adjacent conductive metal layers. Pixel circuits are formed in the array driving layer. The light-emitting device layer includes light-emitting devices distributed in an array. The light-emitting devices are electrically connected to the pixel circuits in the array driving layer.
[0053] The display substrate 110 includes a dam structure 120 disposed in the bezel area BA, which surrounds the periphery of the display area AA. The dam structure 120 can prevent large-scale ink overflow from the display area AA, ensuring the display effect of the display area AA. An encapsulation layer 130 is located on the display substrate 110, and a touch function layer 140 is located on the side of the encapsulation layer 130 away from the display substrate 110. The encapsulation layer 130 may include a first inorganic encapsulation layer 131, an organic encapsulation layer 132, and a second inorganic encapsulation layer 133. The first inorganic encapsulation layer 131 and the second inorganic encapsulation layer 133 can be formed by chemical vapor deposition (CVD), and the organic encapsulation layer 132 can be formed by inkjet printing (IJP).
[0054] On the side of the dam structure 120 away from the display area AA, the display module 10 also includes an insulating layer 170. The insulating layer 170 is provided with a touch through hole that penetrates the insulating layer 170. The touch traces in the touch function layer 140 can be electrically connected to the metal layer in the array driving layer through the line replacement hole to realize the transmission of touch signals. For example, the insulating layer 170 can be disposed on the same layer as the planarization layer in the display substrate 110.
[0055] The optical adhesive layer 150 is located on the side of the touch functional layer 140 away from the display substrate 110. The optical adhesive layer 150 includes an anti-overflow structure 160 disposed in the bezel area BA. The anti-overflow structure 160 includes a first groove 161 continuously distributed and surrounding the display area AA, and a row of second grooves 162 discretely distributed on the side of the first groove 161 facing the display area AA. The side of the first groove 161 away from the display area AA has a neat edge. Exemplarily, the orthographic projection shape of the side of the first groove 161 away from the display area AA on the display substrate 110 is the same as the edge shape of the display area AA. The discretely distributed second grooves 162 are beneficial for dispersing stress and avoiding stress concentration that could damage the film layer. Specifically, the second grooves 162 can be evenly distributed or unequally distributed. Preferably, the second grooves 162 are evenly distributed on the side of the first groove 161 facing the display area AA. When ink overflows, the grooves in the anti-overflow structure 160 can slow down the ink diffusion rate and contain the overflowing ink, so that the ink can be stopped at the first groove 161, giving the ink a neat stop position and avoiding appearance defects caused by ink overflow.
[0056] In the above structure, the anti-overflow structure only includes a row of second grooves. The anti-overflow structure occupies a small space, which is beneficial for narrowing the bezel of the display module. On the other hand, the above distribution of the anti-overflow structure can prevent ink overflow and avoid appearance defects such as white spots and jagged defects caused by ink overflow, thereby improving the yield of the display module.
[0057] Furthermore, the first groove 161 is serrated on the side facing the display area AA, and the second groove 162 corresponds to the serrations in the serration shape. Specifically, as shown... Figure 3 As shown, the first groove 161 may include a first side and a second side forming a serrated shape, and the second groove 162 may include a third side and a fourth side connected together, wherein the first side and the third side are parallel, and the second side and the fourth side are parallel. Exemplarily, the first side and the second side forming the serrated shape may be perpendicular to each other, and the shape of the second groove 162 projected onto the display substrate 110 may be rectangular.
[0058] Please refer to this again. Figure 3 In the direction from the border area BA to the display area AA, the size range R of the anti-overflow structure 160 is 25um-35um. For example, in the direction from the border area BA to the display area AA, the size range R of the anti-overflow structure 160 is 25um, 26um, 27um, 28um, 30um, 32um, 33um, 34um and 35um, etc. Preferably, in the direction from the border area BA to the display area AA, the size range R of the anti-overflow structure 160 is 30um.
[0059] Please refer to this again. Figure 3In the direction from the border area BA to the display area AA, the maximum size R1 of the first groove 161 ranges from 8um to 20um. For example, in the direction from the border area BA to the display area AA, the maximum size R1 of the first groove 161 ranges from 8um, 9um, 10um, 12um, 15um, 17um, 18um, 19um, and 20um. Preferably, in the direction from the border area BA to the display area AA, the minimum size of the first groove 161 is 8.71um, and the maximum size is 19um.
[0060] Please refer to this again. Figure 3 The shape of the second groove 162 projected onto the display substrate 110 can be a square. The side length R2 of the second groove 162 ranges from 7um to 10um. For example, the side length R2 of the second groove 162 can be 7um, 7.2um, 7.5um, 8um, 9um, 9.5um, 9.8um and 10um, etc. Preferably, the side length R2 of the second groove 162 is 8.8um.
[0061] Please refer to this again. Figure 3 The distance range between the first side and the third side, and the distance range between the second side and the fourth side, can be denoted as R3. The range of R3 can be 5um-6.5um. For example, R3 can be 5um, 5.1um, 5.2um, 5.5um, 5.8um, 5.9um and 6um, etc. Preferably, R3 can be 5.8um.
[0062] In some embodiments, please refer again Figure 1 and Figure 2 The bezel area BA includes a first bezel area BA1, a second bezel area BA2, a third bezel area BA3, and a fourth bezel area BA4 connected in sequence. The first bezel area BA1 is opposite to the third bezel area BA3, and the second bezel area BA2 is opposite to the fourth bezel area BA4. The display substrate 110 also includes a bending area CA connected to the first bezel area BA1. The dam structure 120 includes a first dam 121 and a second dam 122. The second dam 122 is located on the side of the first dam 121 away from the display area AA. This arrangement can effectively prevent the organic encapsulation layer 132, which is made by inkjet printing (IJP), from overflowing into the bezel area BA, thus preventing thin-film encapsulation failure and improving the reliability of the display module 10.
[0063] In one possible implementation of this embodiment, the anti-overflow structure 160 can be distributed in the border area BA as follows. The anti-overflow structure 160 can be as follows: Figure 2 The area shown is located on the side of the second embankment 122 furthest from the display area AA. For details, please refer to... Figure 5 and Figure 6Within the second border area BA2, the third border area BA3, and the fourth border area BA4, there is a first distance L1 between the orthographic projection of the anti-overflow structure 160 on the display substrate 110 and the orthographic projection of the second dam 122 on the display substrate 110. Please refer to... Figure 4 Within the first bezel area BA1, there is a second distance L2 between the orthographic projection of the anti-overflow structure 160 on the display substrate 110 and the orthographic projection of the second dam 122 on the display substrate 110. The first distance L1 and the second distance L2 can be different or the same. Preferably, to further reduce the width of the lower bezel and increase the screen-to-body ratio of the display module 10, the second distance L2 can be smaller than the first distance L1.
[0064] In another possible implementation of this embodiment, the anti-overflow structure 160 may be distributed in the border area BA as follows. Please refer to... Figure 7 The orthographic projection of the anti-overflow structure 160 on the display substrate 110 can also lie within the orthographic projection of the second dam 122 on the display substrate 110. That is, in this embodiment, the anti-overflow structure 160 at different bezel locations is located within the orthographic projection of the corresponding second dam 122 on the display substrate 110. For schematic diagrams of the orthographic projections of the anti-overflow structure 160 on the first bezel area BA1, the second bezel area BA2, the third bezel area BA3, and the fourth bezel area BA4, please refer to the respective diagrams. Figures 8 to 10 .
[0065] In another possible implementation of this embodiment, the anti-overflow structure 160 can be distributed in the border area BA as follows. Please refer to [reference needed] for details. Figure 5 and Figure 6 In the second border area BA2, the third border area BA3, and the fourth border area BA4, the anti-overflow structure 160 is located on the side of the second dam 122 away from the display area AA. In the first border area BA1, the orthographic projection of the anti-overflow structure 160 on the display substrate 110 can lie within the orthographic projection of the second dam 122 on the display substrate 110. Please refer again for details. Figure 8 .
[0066] In another possible implementation of this embodiment, the anti-overflow structure 160 may be distributed in the border area BA as follows. Please refer to... Figure 9 and Figure 10 In the second border area BA2, the third border area BA3, and the fourth border area BA4, the orthographic projection of the anti-overflow structure 160 on the display substrate 110 lies within the orthographic projection of the second dam 122 on the display substrate 110. In the first border area BA1, the anti-overflow structure 160 is located on the side of the second dam 122 away from the display area AA.
[0067] It should be noted that in practical applications, the optimal balance between different areas can be achieved by reasonably adjusting the position of the anti-overflow structure 160, thus meeting the needs of different application scenarios.
[0068] Based on the same inventive concept, please refer to Figure 11 This application also provides a display panel 20, which includes a support film 210, a polarizer 220, and any of the display modules 10 described in the above embodiments. The support film 210 is located on the side of the display substrate 110 away from the encapsulation layer 130, and the polarizer 220 is located on the side of the optical adhesive layer 150 away from the encapsulation layer 130.
[0069] The inventors also discovered that the anti-overflow structure 160 located in the non-display area AA may overlap with the edge of the polarizer 220. When the temperature changes significantly, the polarizer 220 will expand or contract, and stress concentration will occur at the junction due to the expansion or contraction of the film layer. Because the anti-overflow structure 160 has grooves, the area of interaction between it and the edge of the polarizer is small, resulting in a larger stress per unit area. This may cause peeling between the film layers at that location, meaning the film layer at the location of the anti-overflow structure 160 may peel off, further affecting the touch traces below. This can cause the touch traces in the touch function layer 140 to peel off at the line-changing hole location, resulting in unstable connection structure of the touch traces and reduced reliability of the touch function of the display panel. To solve this technical problem, the inventors provide the following solution.
[0070] The orthographic projection of the anti-overflow structure 160 on the display substrate 110 lies within the orthographic projection of the polarizer 220 on the display substrate 110. This prevents the anti-overflow structure 160 from overlapping with the polarizer 220, thereby preventing film peeling at their interface due to thermal stress. In other words, it prevents film peeling at the location of the anti-overflow structure 160, and consequently prevents touch traces from peeling at the connection hole location, ensuring that the display panel 20 has good touch functionality.
[0071] The aforementioned display panel 20 can be applied to a variety of display devices. For example, small to medium-sized electronic devices such as tablet computers, smartphones, head-mounted displays, car navigation units, cameras, central information displays (CIDs) provided in vehicles, watch-type electronic devices or other wearable devices, personal digital assistants (PDAs), portable multimedia players (PMPs), and game consoles; and medium to large-sized electronic devices such as televisions, external billboards, monitors, home appliances containing display screens, personal computers, and laptop computers. The above-described electronic devices represent only simple examples of applications for display devices, and therefore those skilled in the art will recognize that the display panel 20 can also be applied to other display devices without departing from the spirit and scope of this disclosure.
[0072] Furthermore, within the first bezel area BA1, there is a third distance L3 between the orthographic projection of the anti-overflow structure 160 onto the display substrate 110 and the edge of the orthographic projection of the polarizer onto the display substrate 110. The third distance L3 ranges from 40µm to 64µm. For example, the range of the third distance L3 is 40µm, 41µm, 42µm, 45µm, 50µm, 55µm, 60µm, 61µm, 62µm, 63µm, and 64µm, etc. Preferably, the range of the third distance L3 is 45µm. When the above distance relationship is satisfied, the display panel 20 has a smaller bottom bezel, which is beneficial for increasing the screen-to-body ratio of the display panel 20 and improving the user experience.
[0073] In summary, this application provides a display module and a display panel. The display module further includes a display substrate, an encapsulation layer, a touch function layer, and an optical adhesive layer. The optical adhesive layer includes an anti-overflow structure disposed in the bezel area. The anti-overflow structure includes a first groove continuously distributed around the display area and a row of second grooves discretely distributed around the display area and located on the side of the first groove facing the display area. On one hand, the anti-overflow structure includes only one row of second grooves, occupying a small space, which is beneficial for narrowing the bezel of the display module. On the other hand, the above-mentioned distribution of the anti-overflow structure can prevent ink overflow, avoiding appearance defects such as white spots and jagged edges caused by ink overflow, and improving the yield of the display module.
[0074] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A display module, characterized in that, The display module includes a display area and a border area surrounding the display area, and the display module further includes: The display substrate includes a dam structure disposed in the frame area, the dam structure surrounding the periphery of the display area; An encapsulation layer is located on the display substrate; The touch function layer is located on the side of the encapsulation layer away from the display substrate; An optical adhesive layer is located on the side of the touch function layer away from the display substrate. The optical adhesive layer includes an anti-overflow structure disposed in the bezel area. The anti-overflow structure includes a first groove that is continuously distributed and surrounds the display area, and a row of second grooves that surround the display area and are discretely distributed on the side of the first groove facing the display area.
2. The display module as described in claim 1, characterized in that, The first groove is serrated on the side facing the display area, and the second groove corresponds to the serrations in the serration. Preferably, in the direction from the border area to the display area, the size of the anti-overflow structure ranges from 25um to 35um; Preferably, in the direction from the border area toward the display area, the maximum size of the first groove ranges from 8µm to 20µm; Preferably, the shape of the second groove projected onto the display substrate is a square, and the side length of the second groove ranges from 7um to 10um.
3. The display module as described in claim 2, characterized in that, The first groove includes a first side and a second side forming a serrated shape, and the second groove includes a third side and a fourth side connected together, wherein the first side is parallel to the third side and the second side is parallel to the fourth side. Preferably, the distance between the first side and the third side, and the distance between the second side and the fourth side, are 5µm-6.5µm.
4. The display module as described in claim 1 or 2, characterized in that, The border area includes a first border area, a second border area, a third border area, and a fourth border area connected in sequence, wherein the first border area is opposite to the third border area, the second border area is opposite to the fourth border area, and the display substrate also includes a bending area connected to the first border area. Preferably, the dam structure includes a first dam and a second dam, wherein the second dam is located on the side of the first dam away from the display area.
5. The display module as described in claim 4, characterized in that, The overflow prevention structure is located on the side of the second dam away from the display area; In the second border area, the third border area, and the fourth border area, there is a first distance between the orthographic projection of the anti-overflow structure on the display substrate and the orthographic projection of the second dam on the display substrate; In the first border area, there is a second distance between the orthographic projection of the anti-overflow structure on the display substrate and the orthographic projection of the second dam on the display substrate, wherein the first distance and the second distance are different; Preferably, the first distance is greater than the second distance.
6. The display module as described in claim 4, characterized in that, The orthographic projection of the anti-overflow structure on the display substrate is located within the orthographic projection of the second dam on the display substrate.
7. The display module as described in claim 4, characterized in that, In the second border area, the third border area, and the fourth border area, the anti-overflow structure is located on the side of the second dam away from the display area; In the first border area, the orthographic projection of the anti-overflow structure on the display substrate is located within the orthographic projection of the second dam on the display substrate.
8. The display module as described in claim 4, characterized in that, In the second frame area, the third frame area and the fourth frame area, the orthographic projection of the anti-overflow structure on the display substrate is located within the orthographic projection of the second dam on the display substrate; In the first border area, the overflow prevention structure is located on the side of the second dam away from the display area.
9. A display panel, characterized in that, The display panel includes the display module according to any one of claims 1-8, and the display panel further includes a polarizer and a support film; The support film is located on the side of the display substrate away from the encapsulation layer; The polarizer is located on the side of the optical adhesive layer away from the encapsulation layer; The anti-overflow structure's orthogonal projection on the display substrate lies within the orthogonal projection of the polarizer on the display substrate.
10. The display panel as claimed in claim 9, characterized in that, In the first border area, there is a third distance between the orthogonal projection of the anti-overflow structure on the display substrate and the edge of the orthogonal projection of the polarizer on the display substrate; Preferably, the range of the third distance is 40um-64um.