Display panel, display device

Abstract

The application provides a display panel and a display device to solve the problem of ion electrochemical corrosion of a border wire changing hole. The display panel comprises a display area and a non-display area, the display area and the non-display area are arranged adjacently, the non-display area comprises a wire changing area, the wire changing area comprises a first wire changing area and a second wire changing area, the first wire changing area and the second wire changing area are arranged adjacently, the second wire changing area is connected to the adjacent first wire changing area, and the display panel comprises a substrate, a metal layer arranged on one side of the substrate, the metal layer comprising a first metal layer and a second metal layer, the first metal layer being arranged on the side of the second metal layer away from the substrate, the first metal layer comprising a first signal wire, the second metal layer comprising a second signal wire, the first signal wire and the second signal wire being electrically connected through a wire changing hole, the wire changing hole being located in the first wire changing area, and an organic layer, the organic layer comprising a first organic layer, the organic layer comprising a groove area, the groove area comprising at least one groove, and the groove area being located in the second wire changing area.

Description

Technical Field

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

[0002] As terminal devices place increasing demands on the reliability of AMOLED modules, reliability and durability testing scenarios are being iterated and upgraded. A significant high-low pressure difference exists at the bottom bezel of the screen. Under high temperature and humidity conditions, residual ions in the organic layer undergo directional migration. The accumulation of these residual ions, combined with moisture, can easily lead to electrochemical corrosion, circuit breaks, and display defects. Summary of the Invention

[0003] In view of this, this application proposes a display panel and display device to solve the problem of electrochemical corrosion caused by ion accumulation in the bezel wire-changing holes.

[0004] To solve the above-mentioned technical problems, the following technical solutions are adopted in the embodiments of this application:

[0005] In a first aspect, this application provides a display panel, including a display area and a non-display area, the display area and the non-display area being disposed adjacent to each other, the non-display area including a switching area, the switching area including a first switching area and a second switching area, the first switching area and the second switching area being disposed adjacent to each other, the second switching area being connected to the adjacent first switching area, comprising: a substrate; a metal layer disposed on one side of the substrate, the metal layer including a first metal layer and a second metal layer, the first metal layer being disposed on the side of the second metal layer facing away from the substrate, the first metal layer including a first signal trace, the second metal layer including a second signal trace, the first signal trace and the second signal trace being electrically connected through a switching hole, the switching hole being located in the first switching area; an organic layer, the organic layer including a first organic layer, the organic layer including a groove region, the groove region including at least one groove, the groove region being located within the second switching area.

[0006] According to one embodiment of this application, it further includes an interlayer dielectric layer and a protective layer, wherein the interlayer dielectric layer is bonded to the side of the first organic layer facing the substrate, and the protective layer covers the side of the first organic layer away from the substrate and extends to cover the groove region; at least a portion of the interlayer dielectric layer is exposed in the groove and the protective layer is in contact with the interlayer dielectric layer exposed in the groove.

[0007] According to one embodiment of this application, the width of the first organic layer located in the second line-changing area is a first width, and the width of the first organic layer located in the groove area is a second width; the second width is one-third of the first width; the center lines of the first width and the second width coincide; the first organic layer located in the groove area includes a first organic part and a second organic part, the first organic part and the second organic part are connected and the extension directions of the first organic part and the second organic part are different, and the groove of the first organic part is connected to the groove of the second organic part.

[0008] According to one embodiment of this application, it further includes an encapsulation layer and a touch layer. The encapsulation layer is disposed on the side of the touch layer facing the substrate. The organic layer further includes a second organic layer, which covers the metal layer and is disposed on the side of the encapsulation layer facing the substrate. The edge of the encapsulation layer away from the display area is recessed within the edge of the touch layer away from the display area.

[0009] According to one embodiment of this application, the touch layer includes a touch electrode and a touch buffer layer located on the side of the touch electrode facing the substrate, wherein the touch buffer layer located in the second switching area is reused as a protective layer.

[0010] According to one embodiment of this application, the orthographic projection of the edge of the touch layer away from the display area on the substrate coincides with the orthographic projection of the edge of the groove away from the display area on the substrate; the edge of the groove away from the display area is recessed within the edge of the touch layer away from the display area.

[0011] According to one embodiment of this application, the groove includes a bottom wall and a side wall, the bottom wall and the side wall extend in different directions, the bottom wall and the side wall are connected, the plane where the side wall is located forms a first angle with the substrate, the opening of the first angle points away from the direction of the corresponding groove; the angle of the first angle is less than or equal to 45°.

[0012] According to one embodiment of this application, the thickness of the protective layer covering the side of the first organic layer away from the substrate is a first thickness, and the thickness of the protective layer extending to cover the groove in the groove region is a second thickness; the first thickness and the second thickness are equal.

[0013] According to one embodiment of this application, the protective layer is made of an inorganic material; the inorganic material includes at least one of silicon oxide and silicon nitride; the interlayer dielectric layer is made of the same material as the protective layer; and the thickness of the protective layer ranges from 0.1 μm to 2 μm.

[0014] Secondly, this application provides a display device including the display panel of any one of claims 1 to 9.

[0015] The beneficial effects of this application are as follows: This application provides a display panel, including a display area and a non-display area, which are arranged adjacent to each other. The non-display area includes a switching area, which includes a first switching area and a second switching area. The first switching area and the second switching area are arranged adjacent to each other, and the second switching area is connected to the adjacent first switching area. The panel includes: a substrate; a metal layer disposed on one side of the substrate, which includes a first metal layer and a second metal layer. The first metal layer is disposed on the side of the second metal layer facing the substrate. The first metal layer includes a first signal trace, and the second metal layer includes a second signal trace. The first signal trace and the second signal trace are electrically connected through a switching hole located in the first switching area; and an organic layer, which includes a first organic layer and a groove region. The groove region includes at least one groove located in the second switching area. The groove is beneficial for blocking ion migration paths, reducing the risk of residual ions in the organic layer migrating directionally to the switching hole location and accumulating in large quantities under the action of an electric field, effectively avoiding electrochemical corrosion of the switching hole, and ensuring the reliability of the display panel. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 A partial structural schematic diagram of a display panel provided in an embodiment of this application; Figure 2 for Figure 1 An enlarged partial structural diagram of the area within the dashed box ③; Figure 3 A schematic diagram illustrating the movement and aggregation of ions under the influence of an electric field, provided as an embodiment of this application; Figure 4 A partial structural schematic diagram of another display panel provided in an embodiment of this application; Figure 5 This is a schematic diagram of the structure of a display device provided in an embodiment of this application.

[0017] Explanation of reference numerals in the attached figures 100 - Display device; 10 - Display panel; 11-Display area; 12-Non-display area; 121-Cable switching area; 1211 - First switching zone; 1212 - Second switching zone; 101-Substrate; 102-Metal layer; 103-Organic layer; 104-Interlayer dielectric layer; 105-Protective layer; 106-Encapsulation layer; 107-Touch layer; 108-Optical adjustment layer; 109-Second cover layer; 110-Pixel limiting layer; 1011 - First capping layer; 1012 - First buffer layer; 1013 - Gate insulating layer; 1014 - Channel layer; 1021 - First metal layer; 1022 - Second metal layer; 1023 - Third metal layer; 211 - First signal trace; 212 - Second signal trace; 202 - Cable change hole; 1030 - Groove area; 1031 - First organic layer; 1003 - Groove; 1032 - Second organic layer; 1033 - Third organic layer; 1311 - First organic part; 1312 - Second organic part; 13a - Bottom wall; 13b - Side wall; d1 - First width; d2 - Second width; α1 - First included angle; h1 - First thickness; h2 - Second thickness; 1071 - Touch electrode; 1072 - Touch buffer layer; 2111 - First drive signal; 2112 - Second drive signal; 2113 - Third drive signal; 1061 - First encapsulation layer; 1062 - Second encapsulation layer. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions in the embodiments of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art should fall within the protection scope of the embodiments of this application.

[0019] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in the embodiments of this application refers to and includes any or all possible combinations of one or more associated listed items.

[0020] It should be understood that in the description of the embodiments of this application, the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the scheme of the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this application.

[0021] Furthermore, when an element or layer is referred to as being "on" another element or layer, "connected to," or "bonded to" another element or layer, the element or layer may be directly on the other element or layer, directly connected to, or directly bonded to the other element or layer, or there may be intermediate elements or layers. However, when an element or layer is referred to as being "directly on" another element or layer, "directly connected to," or "directly bonded to" another element or layer, there are no intermediate elements or layers.

[0022] The terms First, Second, etc., are used to describe various elements, components, regions, layers, and / or parts, but these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are used to distinguish one element, component, region, layer, and / or part from another element, component, region, layer, and / or part.

[0023] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] For AMOLED modules, as mobile phone manufacturers demand the highest possible display quality, the reliability specifications for display modules are also gradually increasing. The lower bezel area of ​​the display panel 10 has a large number of positive and negative driving voltage signal traces, and there is a significant voltage difference between these traces. Through research and analysis, the inventors discovered that during the reliability testing of the display module, the positive and negative charged ions remaining in the organic layer 103 undergo directional migration as the voltage signal is applied during the reliability testing process, and may even accumulate in large quantities in specific areas.

[0025] In existing display modules, moisture from the external environment can easily seep into the edges. The combined effect of moisture, residual positive and negative ions, and the electric field can easily lead to electrochemical corrosion. Please refer to... Figure 1① and ② are the water vapor intrusion paths, and ③ is the location where water vapor, ions, and electric field coupling cause electrochemical corrosion. Among them, ① is the water vapor from the external environment entering the display panel 10 through the gap between the optical adjustment layer 108 and the second cover layer 109 and intruding to position ③. ② is the second cover layer 109 being intruded to position ③ by water vapor from the external environment due to its own gaps. Position ③ is the accumulation location of water vapor and residual ions, and is extremely prone to electrochemical corrosion under the action of the electric field in the reliability test.

[0026] Among them, the line switching hole 202 can electrically connect adjacent signal traces. That is, the line switching hole 202 is very likely to become a large accumulation area after positive and negative ions migrate in a directional manner under the action of voltage signal. Electrochemical corrosion occurs near the line switching hole 202, which will cause the line switching hole 202 to corrode and break the circuit, which is not conducive to the normal operation of the display panel 10.

[0027] After analyzing and studying the above problems, the inventors of this application propose a solution that can solve the problem of electrochemical corrosion caused by ion accumulation in the frame wire replacement hole 202.

[0028] The specific implementation of the embodiments of this application will be further described below with reference to the accompanying drawings.

[0029] Firstly, according to one embodiment of this application, please refer to... Figure 1 This application provides a display panel 10, which includes a display area 11 and a non-display area 12. The display area 11 is an effective area for displaying light and realizing the display function. The non-display area 12 can be used for wiring. The non-display area 12 includes a switching area 121, which includes a first switching area 1211 and a second switching area 1212. The first switching area 1211 and the second switching area 1212 are arranged adjacent to each other. The second switching area 1212 is connected to the adjacent first switching area 1211. The switching area 121 can realize inter-layer jumpers for signal routing between different film layers.

[0030] According to one embodiment of this application, please refer to Figure 1 , Figure 2 as well as Figure 4The display panel 10 includes a substrate 101, a metal layer 102, and an organic layer 103. The metal layer 102 is disposed on one side of the substrate 101 and includes a first metal layer 1021 and a second metal layer 1022. The first metal layer 1021 is disposed on the side of the second metal layer 1022 away from the substrate 101. The first metal layer 1021 includes a first signal trace 211, and the second metal layer 1022 includes a second signal trace 212. The first signal trace 211 and the second signal trace 212 are electrically connected through a switching hole 202, which is located in a first switching area 1211. The organic layer 103 includes a first organic layer 1031 and a recessed region 1030. The recessed region 1030 includes at least one recess 1003 and is located within the second switching area 1212. Specifically, as illustrated below, various positive and negative voltage signals exist at the bottom bezel of the display panel 10. During reliability testing, residual positive and negative ions in the screen accumulate under the influence of these voltage signals, easily causing corrosion and breakage of the line-changing hole 202. By using an etching process to form a groove 1003 in the first organic layer 1031, and by removing a portion of the first organic layer 1031, a discontinuous design of the first organic layer 1031 is achieved. This blocks the directional movement pathway of residual ions, avoids the risk of residual ion accumulation, and effectively prevents electrochemical corrosion of the line-changing hole 202.

[0031] In one implementation, please refer to Figure 4 The groove region 1030 includes only one groove 1003. The first organic layer 1031 located in the groove region 1030 includes a first organic part 1311 and a second organic part 1312. The first organic part 1311 and the second organic part 1312 are connected and the extension directions of the first organic part 1311 and the second organic part 1312 are different. The groove 1003 of the first organic part 1311 is connected to the groove 1003 of the second organic part 1312. That is, the orthogonal projection of this groove 1003 on the substrate 101 coincides with the orthogonal projection of the groove region 1030 on the substrate 101, or the orthogonal projection of this groove 1003 on the substrate 101 is within the range of the orthogonal projection of the groove region 1030 on the substrate 101. This simplifies the process flow, blocks the directional migration path of residual ions, and effectively avoids the electrochemical corrosion of the wire replacement hole 202.

[0032] In another embodiment, the groove region 1030 includes a plurality of grooves 1003, at least two of which are not connected. Through the flexible arrangement of the grooves 1003 in the groove region 1030, the directional migration pathway of residual ions is blocked, which can be adapted to the process requirements of different display panels 10 and ensure the mechanical strength of the display panel 10.

[0033] In another embodiment, multiple sleeve holes are provided in the same groove 1003, that is, the sidewall 13b of the groove 1003 forms a stepped structure, which not only blocks the directional migration path of residual ions, but also extends the water vapor intrusion path, further exerts the protective effect, and avoids the risk of electrochemical corrosion and water vapor intrusion.

[0034] According to one embodiment of this application, the groove 1003 can be any combination of two or more embodiments in the embodiments of this application. It should be noted that the groove 1003 is set to block the directional migration path of residual ions under voltage. The number, morphology and arrangement of the grooves 1003 are not limited. Moreover, the arrangement of the grooves 1003 in the groove region 1030 is independent, that is, the arrangement and layout of one groove 1003 will not affect the arrangement and layout of other grooves 1003. Two grooves 1003 can overlap in space.

[0035] In one implementation, please refer to Figure 1 The substrate 101 of the display panel 10 can serve as a carrier substrate for subsequent film layers. The substrate 101 can be stacked and includes a first cover layer 1011, a first buffer layer 1012, a gate insulating layer 1013, and a channel layer 1014 arranged sequentially. The first cover layer 1011 provides bending resistance to ensure the reliability of the display panel 10. The first buffer layer 1012 is disposed on the side of the first cover layer 1011 near the touch layer 107 to provide a flat film layer for subsequent film layers. The gate insulating layer 1013 and the channel layer 1014 can provide driving for the display panel 10. The arrangement of each film layer ensures the normal operation of the display panel 10.

[0036] The first cover layer 1011 can be made of UV-curable adhesive to meet the process requirements of the display panel 10.

[0037] In one implementation, please refer to Figure 2 The metal layer 102 includes a first metal layer 1021, a second metal layer 1022, and a third metal layer 1023. The first metal layer 1021 is disposed on the side of the second metal layer 1022 facing away from the substrate 101, and the third metal layer 1023 is disposed on the side of the second metal layer 1022 close to the substrate 101. The first metal layer 1021 is an M4 metal layer, the second metal layer 1022 is an M3 metal layer, and the third metal layer 1023 is an M2 metal layer. An interlayer dielectric layer 104 is disposed between the third metal layer 1023 and the second metal layer 1022 to avoid crosstalk risks. Corresponding signal traces are disposed on the metal layer 102. This stacked metal layer 102 facilitates the connection of corresponding signal traces via jumper holes 202, effectively improving the voltage stability of the display panel 10 and simplifying the wiring process.

[0038] In another implementation, please refer to Figure 3 and Figure 4 Electrical connection is achieved between the first signal trace 211 of the first metal layer 1021 and the second signal trace 212 of the second metal layer 1022, forming a first driving signal 2111, a second driving signal 2112, and a third driving signal 2113. The first driving signal 2111 and the second driving signal 2112 are clock signals, which can be used for timing control of the display panel 10. The third driving signal 2113 is an enable signal, which can control the start and stop of the driving chip. Specifically, during the reliability test of the display panel 10, there is a voltage difference between the signal traces. Under the action of the electric field, positive and negative ions can move and gather in a directional manner according to the path indicated by the solid arrow in the figure. The groove 1003 of the groove region 1030 of this application can effectively block the directional movement path of ions.

[0039] According to one embodiment of this application, please refer to Figure 2 The display panel 10 also includes an interlayer dielectric layer 104 and a protective layer 105. The interlayer dielectric layer 104 is bonded to the side of the first organic layer 1031 facing the substrate 101, and the protective layer 105 covers the side of the first organic layer 1031 facing away from the substrate 101 and extends to cover the groove 1003 of the groove region 1030. The interlayer dielectric layer 104 provides protection by preventing crosstalk between the underlying film layers; the protective layer 105 covers the groove 1003, further preventing moisture intrusion.

[0040] Furthermore, the groove 1003 includes a bottom wall 13a and a side wall 13b. The area of ​​the interlayer dielectric layer 104 exposed in the groove 1003 is equal to the area of ​​the bottom wall 13a. That is, the part of the interlayer dielectric layer 104 exposed in the groove 1003 is the bottom wall 13a of the groove 1003. The protective layer 105 extends to cover the groove 1003 and contacts the interlayer dielectric layer 104 exposed in the groove 1003. The two form a tightly fitted interface, which completely blocks the transmission path of residual ions and plays a protective role for the groove 1003, ensuring the reliability of the display panel 10.

[0041] In another embodiment, the groove 1003 includes a bottom wall 13a and a side wall 13b. The area of ​​the interlayer dielectric layer 104 exposed in the groove 1003 is smaller than the area of ​​the bottom wall 13a. That is, the interlayer dielectric layer 104 partially penetrates the bottom wall 13a of the groove 1003. The protective layer 105 extends to cover the groove 1003 and contacts the interlayer dielectric layer 104 exposed in the groove 1003, which can also form a tight-fitting interface, effectively blocking the transmission of residual ions and ensuring the reliability of the display panel.

[0042] In one embodiment, the protective layer 105 can be prepared by at least one of chemical vapor deposition (CVD) and atomic layer deposition (ALD) to achieve a dense and uniform thin film, prevent moisture intrusion, and effectively protect the groove 1003.

[0043] The protective layer 105 is made of inorganic materials. After deposition, the inorganic materials form a dense membrane layer with dense gaps, which is more conducive to blocking water vapor permeation channels and effectively achieving the protective barrier function.

[0044] Furthermore, the inorganic material may include at least one of silicon oxide and silicon nitride, which can be adapted to the process requirements of various display panels 10.

[0045] According to one embodiment of this application, the thickness of the protective layer 105 ranges from 0.1 μm to 2 μm. The thickness of the protective layer 105 includes, but is not limited to, 0.1 μm, 0.9 μm, 1.0 μm, 0.7 μm, and 2.0 μm. While ensuring that the display panel 10 is thin and light, the protective layer 105 meets the protection requirements of the groove 1003.

[0046] According to one embodiment of this application, the material of the interlayer dielectric layer 104 is the same as that of the protective layer 105. The homogeneous interface is in close contact, making it more difficult for water vapor, ions and impurities to diffuse along the interface. This enhances the effect of blocking the directional movement pathway of residual ions in the inner screen of the organic layer 103 and extends the service life.

[0047] In another embodiment, the materials of the interlayer dielectric layer 104 and the protective layer 105 may also be different, which can be flexibly adjusted to adapt to the process requirements of different display panels 10.

[0048] The material of the interlayer medium layer 104 includes inorganic materials. After deposition, the inorganic materials form a dense membrane layer with dense gaps, which is more conducive to blocking water vapor permeation channels and effectively achieving the protective barrier function.

[0049] Furthermore, the inorganic material may include at least one of silicon oxide and silicon nitride, which can be adapted to the process requirements of various display panels 10.

[0050] According to one embodiment of this application, please refer to Figure 1 and Figure 4The display panel 10 includes a non-display area 12, which includes a switching area 121. The switching area 121 includes a first switching area 1211 and a second switching area 1212. The first switching area 1211 and the second switching area 1212 are arranged adjacent to each other. The second switching area 1212 is connected to the adjacent first switching area 1211. The width of the first organic layer 1031 located in the second switching area 1212 is a first width d1, and the width of the first organic layer 1031 located in the groove area 1030 is a second width d2. The groove area 1030 is within the range of the second switching area 1212. Specifically, the first switching area 1211 can be the setting area of ​​the switching hole 202, and the second switching area 1212 can be the setting area of ​​the groove 1003, so as to avoid the adverse effects of the setting of the groove 1003 on the driving display function and ensure the reliability of the display panel 10.

[0051] Furthermore, the second width d2 is one-third of the first width d1, and the recessed area 1030 occupies one-third of the space of the second line-changing area 1212. This restriction on the recessed area 1030 ensures the mechanical strength of the display panel 10.

[0052] In another embodiment, the second width d2 is one-third of the first width d1, and the groove region 1030 occupies less than one-third of the space of the second line-changing region 1212. Through the flexible layout of the groove 1003, the movement path of residual ions can also be blocked.

[0053] In another embodiment, the midline of the first width d1 and the second width d2 coincides, that is, the groove region 1030 is located in the middle of the second line-changing region 1212, which helps to reduce the damage to the film layer caused by the etching process.

[0054] In one embodiment, the center lines of the first width d1 and the second width d2 may not coincide, and the groove area 1030 can be flexibly adjusted in space within the range of the second line-changing area 1212 to adapt to the process requirements of more display panels 10.

[0055] In yet another implementation, please refer to Figure 2 and Figure 4The first organic layer 1031 located in the groove region 1030 includes a first organic part 1311 and a second organic part 1312. The first organic part 1311 and the second organic part 1312 are connected and their extension directions are different. The groove 1003 of the first organic part 1311 is connected to the groove 1003 of the second organic part 1312. It can be understood that the groove 1003 can be set at the corner where the first organic part 1311 and the second organic part 1312 are connected. The voltage signal at the corner is more complex. The setting of the groove 1003 can effectively prevent ions from moving and accumulating under the action of voltage signal, further ensuring the reliability of the display panel 10. It should be noted that the setting of the groove 1003 of the first organic part 1311 and the groove 1003 of the second organic part 1312 is independent and can be flexibly adjusted according to the actual process requirements. There are no limitations on the corresponding arrangement, number and morphology of the grooves 1003 in the two.

[0056] According to one embodiment of this application, please refer to Figure 1 The display panel 10 also includes an encapsulation layer 106 and a touch layer 107. The encapsulation layer 106 is disposed on the side of the touch layer 107 facing the substrate 101. The organic layer 103 also includes a second organic layer 1032, which covers the metal layer 102. The second organic layer 1032 is disposed on the side of the encapsulation layer 106 facing the substrate 101. The second organic layer 1032 provides isolation and protection, which is beneficial to the preparation of subsequent film layers. The encapsulation layer 106 can prevent the display panel 10 from being invaded by moisture. The touch layer 107 is the entry point for human-computer interaction, ensuring the normal operation of the display panel 10.

[0057] Furthermore, the edge of the encapsulation layer 106 away from the display area 11 is recessed within the edge of the touch layer 107 away from the display area 11. As a human-computer interaction structure, the touch layer 107 needs to be electrically connected to the relevant signal traces in the display panel 10. This arrangement can avoid the interference of the encapsulation layer 106 on the downward film layer traces of the touch layer 107, which is beneficial to reduce the wiring path and reduce the power consumption of the display panel 10. It should be noted that when designing the mask of the encapsulation layer 106, the mask of the encapsulation layer 106 can be designed in an irregular shape to achieve the structure that the edge of the encapsulation layer 106 away from the display area 11 is recessed within the edge of the touch layer 107 away from the display area 11. Without affecting the wiring of the touch layer 107, it can ensure that a film layer of sufficient thickness is deposited at the groove 1003.

[0058] According to one embodiment of this application, please refer to Figure 1The encapsulation layer 106 may include a first encapsulation layer 1061 and a second encapsulation layer 1062. The first encapsulation layer 1061 is disposed on the side of the second encapsulation layer 1062 close to the substrate 101. The first encapsulation layer 1061 and the second encapsulation layer 1062 are stacked, which greatly reduces the risk of water vapor and oxygen penetrating into the interior of the film layer.

[0059] According to one embodiment of this application, please refer to Figure 1 The touch layer 107 includes a touch electrode 1071 and a touch buffer layer 1072 located on the side of the touch electrode 1071 facing the substrate 101. The touch buffer layer 1072 located in the second switching region 1212 is reused as a protective layer 105. Specifically, it can be illustrated as follows: the first organic layer 1031 is processed by etching to realize the setting of the groove 1003. In the subsequent preparation of the encapsulation layer 106 and other film layers, the groove 1003 pattern is reserved. In the preparation of the touch buffer layer 1072, the entire surface of the touch buffer layer 1072 is prepared, and the touch buffer layer 1072 located in the second switching region 1212 covers the groove 1003. That is, the touch buffer layer 1072 located in the second switching region 1212 is reused as a protective layer 105, which helps to improve the effect of the protective layer 105 in preventing moisture intrusion, realize the blocking effect of the ion channel, and simplify the process complexity.

[0060] According to one embodiment of this application, please refer to Figure 1 The orthographic projection of the edge of the touch layer 107 away from the display area 11 on the substrate 101 coincides with the orthographic projection of the edge of the groove 1003 away from the display area 11 on the substrate 101. That is, the groove 1003 is located within the orthographic projection range of the touch layer 107 on the substrate 101, and will not affect the wiring of the lower bezel, thus ensuring the mechanical strength of the display panel 10.

[0061] Furthermore, the edge of the recess 1003 furthest from the display area 11 is recessed within the edge of the touch layer 107 furthest from the display area 11, reducing the adverse effects of the recess 1003 on the mechanical strength of the display panel 10.

[0062] According to one embodiment of this application, please refer to Figure 2 The groove 1003 includes a bottom wall 13a and a side wall 13b. The bottom wall 13a and the side wall 13b extend in different directions. The bottom wall 13a and the side wall 13b are connected. The plane where the side wall 13b is located forms a first angle α1 with the substrate 101. The opening of the first angle α1 points away from the direction of the corresponding groove 1003. The process is mature and is conducive to the uniform coverage of the subsequent film layer.

[0063] Furthermore, the angle of the first included angle α1 is less than or equal to 45°. The angle of the first included angle α1 includes, but is not limited to, 20°, 25°, 26.5°, 27°, and 45°. The limitation of the angle of the first included angle α1 is conducive to the uniform coverage of the subsequent film layer, prevents the generation of microcracks during the subsequent buffer layer deposition process, and ensures product yield.

[0064] According to one embodiment of this application, please refer to Figure 2 and Figure 4 The protective layer 105 covers the side of the first organic layer 1031 away from the substrate 101 with a thickness of first thickness h1. The protective layer 105 extends to cover the groove 1003 of the groove area 1030 with a thickness of second thickness h2. The setting of the protective layer 105 further avoids the intrusion of external moisture, plays a protective role for the groove 1003, and ensures the reliability of the display panel 10.

[0065] In one embodiment, the protective layer 105 may only cover the groove 1003 of the groove region 1030, thereby reducing material costs.

[0066] In another embodiment, the protective layer 105 covers the groove 1003 of the groove region 1030 and extends to cover at least a portion of the first organic layer 1031 on the side opposite to the substrate 101, thereby achieving continuous coverage of the bottom wall 13a and side wall 13b of the groove 1003 and further improving the protective effect.

[0067] According to one embodiment of this application, the first thickness h1 and the second thickness h2 are equal, that is, the first thickness h1 of the protective layer 105 covering the groove 1003 is equal to the second thickness h2 of the protective layer 105 extending to cover the side of the first organic layer 1031 away from the substrate 101, which simplifies the process complexity and is beneficial to the subsequent film layer process.

[0068] According to one embodiment of this application, please refer to Figure 1 The display panel 10 also includes an optical adjustment layer 108, which is located in the display area 11 of the display panel 10 and is an important component for achieving normal display of light emission.

[0069] In one embodiment, the optical adjustment layer 108 is a polarizer, which is an optical film that only allows light vibrating in a specific direction to pass through. Its core function is to filter light, control light, and prevent glare, which can meet the dimming requirements of the display panel 10 and ensure the normal operation of the display device 100.

[0070] According to one embodiment of this application, please refer to Figure 1 and Figure 2The organic layer 103 also includes a third organic layer 1033, wherein the third organic layer 1033 is disposed on the side of the first organic layer 1031 near the substrate 101. The third organic layer 1033 can elevate the spatial position of the film layer, providing a flat surface for subsequent film deposition.

[0071] According to one embodiment of this application, please refer to Figure 1 The display panel 10 also includes a pixel limiting layer 110. The pixel limiting layer 110 is disposed on the side of the second organic layer 1032 away from the substrate 101. The pixel limiting layer 110 located in the display area 11 can be used to limit the light-emitting area and ensure the normal light emission of the display panel 10. The pixel limiting layer 110 located in the non-display area 12 can play the role of raising the film layer, which is beneficial to the subsequent film layer setting.

[0072] According to one embodiment of this application, please refer to Figure 1 The display panel 10 also includes a second cover layer 109, which provides protection for the display panel 10 and improves the impact resistance of the display module.

[0073] The second cover layer 109 is a back panel adhesive layer (BPL) that provides support for the display panel 10.

[0074] Secondly, according to one embodiment of this application, please refer to... Figure 5 This application provides a display device 100, including any of the above-described display panels 10.

[0075] According to one embodiment of this application, the display device 100 includes, but is not limited to, electronic devices such as mobile terminals, in-vehicle display devices, portable computers, and tablet computers.

[0076] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display panel, comprising a display area and a non-display area, wherein the display area and the non-display area are disposed adjacent to each other, the non-display area includes a switching area, the switching area includes a first switching area and a second switching area, the first switching area and the second switching area are disposed adjacent to each other, and the second switching area is connected to the adjacent first switching area, characterized in that, include, Substrate; A metal layer is disposed on one side of the substrate. The metal layer includes a first metal layer and a second metal layer. The first metal layer is disposed on the side of the second metal layer opposite to the substrate. The first metal layer includes a first signal trace, and the second metal layer includes a second signal trace. The first signal trace and the second signal trace are electrically connected through a switching hole, and the switching hole is located in the first switching area. An organic layer, the organic layer comprising a first organic layer, the organic layer comprising a groove region, the groove region comprising at least one groove, the groove region being located within a second switching area.

2. The display panel according to claim 1, characterized in that, It also includes an interlayer dielectric layer and a protective layer, wherein the interlayer dielectric layer is attached to the side of the first organic layer facing the substrate, and the protective layer covers the side of the first organic layer away from the substrate and extends to cover the groove region. Preferably, at least a portion of the interlayer dielectric layer is exposed to the groove, and the protective layer is in contact with the interlayer dielectric layer exposed to the groove.

3. The display panel according to claim 1, characterized in that, The width of the first organic layer located in the second line-changing area is a first width, and the width of the first organic layer located in the groove area is a second width; Preferably, the second width is one-third of the first width; Preferably, the centerlines of the first width and the second width coincide; Preferably, the first organic layer located in the groove region includes a first organic part and a second organic part, the first organic part and the second organic part are connected and the first organic part and the second organic part extend in different directions, and the groove of the first organic part is in communication with the groove of the second organic part.

4. The display panel according to claim 2, characterized in that, It also includes an encapsulation layer and a touch layer, the encapsulation layer being disposed on the side of the touch layer facing the substrate, and the organic layer further including a second organic layer, the second organic layer covering the metal layer, the second organic layer being disposed on the side of the encapsulation layer facing the substrate; Preferably, the edge of the encapsulation layer away from the display area is recessed within the edge of the touch layer away from the display area.

5. The display panel according to claim 4, characterized in that, The touch layer includes touch electrodes and a touch buffer layer located on the side of the touch electrodes facing the substrate, wherein the touch buffer layer located in the second switching area is reused as the protective layer.

6. The display panel according to claim 4, characterized in that, The orthographic projection of the edge of the touch layer furthest from the display area onto the substrate coincides with the orthographic projection of the edge of the groove furthest from the display area onto the substrate. Preferably, the edge of the groove furthest from the display area is recessed within the edge of the touch layer furthest from the display area.

7. The display panel according to claim 2, characterized in that, The groove includes a bottom wall and a side wall, the bottom wall and the side wall extend in different directions, the bottom wall and the side wall are connected, the plane where the side wall is located forms a first angle with the substrate, and the opening of the first angle points away from the direction corresponding to the groove. Preferably, the angle of the first included angle is less than or equal to 45°.

8. The display panel according to claim 7, characterized in that, The thickness of the protective layer covering the side of the first organic layer away from the substrate is a first thickness, and the thickness of the protective layer extending to cover the groove region is a second thickness; Preferably, the first thickness is equal to the second thickness.

9. The display panel according to claim 2, characterized in that, The protective layer is made of inorganic materials; Preferably, the inorganic material includes at least one of silicon oxide and silicon nitride; Preferably, the interlayer dielectric layer and the protective layer are made of the same material; Preferably, the thickness of the protective layer is in the range of 0.1 μm to 2 μm.

10. A display device comprising the display panel according to any one of claims 1 to 9.

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