Display panel, manufacturing method thereof, and display device

Abstract

The present application relates to a display panel, a manufacturing method thereof, and a display device. The display panel includes a display layer group and a conductive ink layer. The display layer group has a first surface, a second surface, and side surfaces. The first surface and the second surface are oppositely arranged, and the side surfaces are connected between the first surface and the second surface; the conductive ink layer is at least disposed on the side surfaces, and the conductive ink layer is in direct contact with the side surfaces. This display panel can solve the problems of cumbersome process for disposing the conductive ink layer on the display panel and low production efficiency at present.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and particularly to a display panel, a manufacturing method thereof, and a display device. Background Art

[0002] During the use of display products, both human static electricity and mechanical static electricity existing in the environment may cause damage to the display products. Therefore, the antistatic ability is very important for display products. In related technologies, a conductive ink layer is usually provided on the display panel to achieve the effect of static electricity release. However, currently, the process of setting the conductive ink layer on the display panel is cumbersome and the production efficiency is low. Summary of the Invention

[0003] Based on this, it is necessary to provide a display panel, a manufacturing method thereof, and a display device for the problems of cumbersome process and low production efficiency of setting the conductive ink layer on the display panel currently.

[0004] According to one aspect of the present application, a display panel is provided, including: a display layer group having a first surface, a second surface, and a side surface, the first surface and the second surface being oppositely arranged, and the side surface being connected between the first surface and the second surface; and a conductive ink layer, the conductive ink layer being at least provided on the side surface and being in direct contact with the side surface.

[0005] In some embodiments, the display layer group includes a packaging glass having a closed inner cavity and a liquid crystal layer provided in the closed inner cavity; the conductive ink layer is provided on the outer surface of the packaging glass and is in direct contact with the outer surface of the packaging glass.

[0006] In some embodiments, the packaging glass includes a first glass substrate, a second glass substrate, and a side glass substrate, the first glass substrate and the second glass substrate being oppositely arranged, and the side glass substrate being connected between the first glass substrate and the second glass substrate to enclose the closed inner cavity; the outer surface of the first glass substrate forms the first surface, the outer surface of the second glass substrate forms the second surface, and the outer surface of the side glass substrate forms the side surface.

[0007] In some embodiments, the outer surface of the side glass substrate includes a first side surface, a second side surface, and a third side surface connected in sequence; the first side surface is connected between the second side surface and the first surface, and the first side surface is inclined relative to the first surface; the third side surface is connected between the second side surface and the second surface, and the third side surface is inclined relative to the second surface.

[0008] In some embodiments, the conductive ink layer includes a first ink layer and a second ink layer; the first ink layer and the second ink layer completely cover the side surface, and the first ink layer extends from the side surface to the first surface, and the second ink layer extends from the side surface to the second surface.

[0009] In some embodiments, the display panel further includes a polarizer disposed on the first surface; an edge of the polarizer and an edge of the display layer group form a first step; the conductive ink layer extends from the first surface of the display layer group through the first step to a surface of the polarizer on a side facing away from the display layer group.

[0010] In some embodiments, the thickness of the conductive ink layer is 4.5μm ± 2μm.

[0011] According to another aspect of the present application, there is provided a method for manufacturing a display panel, the method including the following steps: providing a display panel as described above; cleaning a surface of the display layer group; wherein, the display layer group has a first surface, a second surface and a side surface, the first surface and the second surface are oppositely arranged, and the side surface is connected between the first surface and the second surface; disposing a conductive ink layer on at least the side surface of the cleaned display layer group, and the conductive ink layer is in direct contact with the side surface.

[0012] In some embodiments, the cleaning of the surface of the display layer group includes: cleaning organic impurities on the surface of the display layer group with a chemical cleaning agent.

[0013] According to another aspect of the present application, there is provided a display device, the display device including the display panel as described above.

[0014] The display panel provided by the present application includes a display layer group and a conductive ink layer disposed at least on a side surface of the display layer group, and an electrostatic discharge effect is achieved through the arrangement of the conductive ink layer. Moreover, since the conductive ink layer is in direct contact with the display layer group, that is, the conductive ink layer can be directly disposed on the surface of the display layer group, the setting process of the conductive ink layer is simple and has fewer steps, thereby simplifying the manufacturing process of the display panel and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shows a schematic structural diagram of a display panel in an embodiment of the present application;

[0016] Figure 2 Shows a schematic structural diagram of a display panel in another embodiment of the present application;

[0017] Figure 3 Shows a flowchart of a method for manufacturing a display panel in an embodiment of the present application.

[0018] Description of the attached drawing reference numerals:

[0019] 10: Display layer group 132: Second side

[0020] 10a: First surface 133: Third side

[0021] 10b: Second surface 20: Conductive ink layer

[0022] 10c: Side surface 30: Polarizer

[0023] 11: First glass substrate 31: First step

[0024] 12: Second glass substrate 40: Touch control unit

[0025] 13: Side glass substrate 41: Second step

[0026] 131: First side Detailed implementation manners

[0027] In order to make the above objects, features and advantages of the present application more obvious and understandable, the following will describe in detail the specific implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0030] In this application, unless otherwise clearly stipulated and defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In this application, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0032] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0033] Due to the gradually diversified and complex application environment of electronic products, the influence of environmental factors on the display device during use cannot be ignored. For example, the human static electricity and mechanical static electricity existing in the environment may cause damage to the display device. Therefore, it is very important to improve the antistatic ability of the display device.

[0034] In the related art, the static electricity is usually released by adding a static electricity release layer in the display device. Exemplarily, a non-conductive ink layer and a conductive ink layer are sequentially stacked and coated on the edge of the display panel. Among them, the function of the conductive ink layer is to release static electricity, and the function of the non-conductive ink is to form a clean coating on the surface of the display panel to prevent the conductive ink layer from easily falling off due to directly coating the conductive ink layer on the surface of the display panel. Since the non-conductive ink layer and the conductive ink layer need to be respectively coated on the opposite two side surfaces of the display panel and on the side surfaces connecting the opposite two side surfaces of the display panel, the process is cumbersome and the production efficiency is low.

[0035] To solve the above problems, the present application provides a display panel. A conductive ink layer is provided on the surface of the display panel, and the conductive ink layer is in direct contact with the display panel. In this way, while achieving the electrostatic discharge effect, the manufacturing process of the display panel is simplified, and the production efficiency is improved.

[0036] Figure 1 The structural schematic diagram of the display panel in an embodiment of the present application is shown.

[0037] Referring to Figure 1 , the display panel provided in an embodiment of the present application includes a display layer group 10 and a conductive ink layer 20. The display layer group 10 has a first surface 10a, a second surface 10b, and a side surface 10c. The first surface 10a and the second surface 10b are oppositely arranged, and the side surface 10c is connected between the first surface 10a and the second surface 10b. The conductive ink layer 20 is at least provided on the side surface 10c, and the conductive ink layer 20 is in direct contact with the side surface 10c. The display panel provided in this embodiment includes a display layer group 10 and a conductive ink layer 20 provided at least on the side surface 10c of the display layer group 10, and the electrostatic discharge effect is achieved through the setting of the conductive ink layer 20. Moreover, since the conductive ink layer 20 is in direct contact with the display layer group 10, that is, the conductive ink layer 20 can be directly provided on the surface of the display layer group 10, the setting process of the conductive ink layer 20 is simple and has fewer steps, thereby simplifying the manufacturing process of the display panel and improving the production efficiency.

[0038] Exemplarily, the material of the conductive ink layer 20 includes at least one of conductive light-shielding ink, graphene, carbon nanotubes, metal nanowires, and conductive polymers (such as polyethylenedioxythiophene).

[0039] Optionally, the conductive ink layer 20 is an opaque layer. In this way, while achieving the electrostatic discharge effect, the conductive ink layer 20 can also play a light-shielding effect. Further, the conductive ink layer 20 completely covers the side surface 10c, thereby enhancing the electrostatic discharge effect and the light-shielding effect.

[0040] Optionally, the display layer group 10 has an opposite display side and a back side. The first surface 10a is located on the display side, the second surface 10b is located on the back side, the side surface 10c is located between the display side and the back side, and the display layer group 10 includes a display area and a non-display area surrounding the display area; wherein, the area corresponding to the non-display area on the first surface 10a, the side surface 10c, and the second surface 10b are all covered with the conductive ink layer 20. In this way, while ensuring that the conductive ink layer 20 does not affect the display effect of the display area, the electrostatic discharge effect and the light-shielding effect of the conductive ink layer 20 can be further enhanced.

[0041] In some embodiments, the display layer group 10 includes a packaged glass having a closed inner cavity and a liquid crystal layer (not shown in the figure) disposed in the closed inner cavity; the conductive ink layer 20 is disposed on the outer surface of the packaged glass, and the conductive ink layer 20 is in direct contact with the outer surface of the packaged glass. Exemplarily, the method of disposing the conductive ink layer 20 on the outer surface of the packaged glass includes screen printing, transfer printing, spin coating, or blade coating. By directly disposing the conductive ink layer 20 on the outer surface of the packaged glass, while achieving the effect of electrostatic discharge, the manufacturing process of the display panel is simplified and the production efficiency is improved.

[0042] In some embodiments, the packaged glass includes a first glass substrate 11, a second glass substrate 12, and a side glass substrate 13. The first glass substrate 11 and the second glass substrate 12 are disposed opposite to each other, and the side glass substrate 13 is connected between the first glass substrate 11 and the second glass substrate 12 to enclose a closed inner cavity; the outer surface 10c of the first glass substrate 11 forms a first surface 10a, the outer surface 10c of the second glass substrate 12 forms a second surface 10b, and the outer surface 10c of the side glass substrate 13 forms a side surface 10c. It can be understood that during the processes of production, storage, and transportation, impurities are likely to accumulate on the surface of the glass substrate, affecting the cleanliness of the glass substrate surface. Therefore, in order to ensure that the conductive ink layer 20 can be stably retained on the surface of the glass substrate, in the related art, a non-conductive ink layer 20 is usually first coated on the surface of the glass substrate to cover the impurities on the surface of the glass substrate, and then, on the basis of keeping the non-conductive ink layer 20 clean, a conductive ink layer 20 is coated on the non-conductive ink layer 20. This method results in a cumbersome process and low production efficiency. In this embodiment, the conductive ink layer 20 is directly disposed on the outer surface of the packaged glass formed by the first glass substrate 11, the second glass substrate 12, and the side glass substrate 13, simplifying the process steps and thus improving the production efficiency. Among them, during the process of directly disposing the conductive ink layer 20 on the outer surface of the packaged glass, in order to ensure that the conductive ink layer 20 is stably retained on the outer surface of the packaged glass, the glass substrate can be pre-cleaned.

[0043] Optionally, the outer surface 10c of the side glass substrate 13 includes a first side surface 131, a second side surface 132, and a third side surface 133 that are sequentially connected; the first side surface 131 is connected between the second side surface 132 and the first surface 10a, and the first side surface 131 is inclined relative to the first surface 10a; the third side surface 133 is connected between the second side surface 132 and the second surface 10b, and the third side surface 133 is inclined relative to the second surface 10b. Based on this, by designing the inclination angle of the first side surface 131 relative to the first surface 10a and the inclination angle of the third side surface 133 relative to the second surface 10b, an outwardly convex structure can be formed on the outer surface 10c of the side glass substrate 13. Thus, it is convenient to provide the conductive ink layer 20 on the outer surface 10c of the side glass substrate 13.

[0044] Optionally, the inclination angle of the first side surface 131 relative to the first surface 10a is equal to the inclination angle of the third side surface 133 relative to the second surface 10b. Optionally, the inclination angle of the first side surface 131 relative to the first surface 10a is 30° to 60°, for example, 35°, 40°, 45°, 50°, 55°. Further, the first surface 10a and the second surface 10b are parallel, and the second side surface 132 is perpendicular to the first surface 10a. Thus, the outer surface 10c of the side glass substrate 13 forms an axisymmetric structure. Based on this, when the conductive ink layer 20 is provided on the outer surface 10c of the side glass substrate 13, the conductive ink material can uniformly cover the outer surface 10c of the side glass substrate 13, thereby improving the electrostatic discharge effect.

[0045] In some embodiments, the conductive ink layer 20 includes a first ink layer and a second ink layer. The first ink layer and the second ink layer completely cover the side surface 10c, and the first ink layer extends from the side surface 10c to the first surface 10a, and the second ink layer extends from the side surface 10c to the second surface 10b. Since the first ink layer and the second ink layer completely cover the side surface 10c, the side surface 10c is fully utilized, the coverage area of the conductive ink layer 20 is increased, and the electrostatic discharge effect is improved; moreover, the first ink layer extends from the side surface 10c to the first surface 10a, and the second ink layer extends from the side surface 10c to the second surface 10b. On the one hand, the coverage area of the conductive ink layer 20 is further increased, and on the other hand, the adhesion strength of the conductive ink layer 20 on the surface of the display layer group 10 is enhanced, and the probability of the conductive ink layer 20 falling off is reduced.

[0046] In some embodiments, the display panel further includes a polarizer 30 disposed on the first surface 10a. A first step 31 is formed between the edge of the polarizer 30 and the edge of the display layer group 10. The conductive ink layer 20 extends from the first surface 10a of the display layer group 10 through the first step 31 to the surface of the polarizer 30 on the side facing away from the display layer group 10. By forming the first step 31 between the edge of the polarizer 30 and the edge of the display layer group 10, the attachment area of the conductive ink layer 20 is increased while the orthographic projection area of the conductive ink layer 20 on the first surface 10a remains unchanged, thereby further enhancing the attachment strength of the conductive ink layer 20 and reducing the probability of the conductive ink layer 20 peeling off.

[0047] Further, the display panel further includes a polarizer 30 disposed on the first surface 10a and a touch control unit 40 disposed on the side of the polarizer 30 facing away from the display layer group 10. A first step 31 is formed between the edge of the polarizer 30 and the edge of the display layer group 10, and a second step 41 is formed between the edge of the touch control unit 40 and the edge of the polarizer 30.

[0048] In an alternative embodiment, the conductive ink layer 20 extends from the first surface 10a of the display layer group 10 through the first step 31 to the surface of the polarizer 30 on the side facing away from the display layer group 10, and then extends through the second step 41 to the surface of the touch control unit 40 on the side facing away from the polarizer 30. In this way, the attachment area of the conductive ink layer 20 is further increased, thereby further enhancing the attachment strength of the conductive ink layer 20 and reducing the probability of the conductive ink layer 20 peeling off.

[0049] Figure 2 The structural schematic diagram of the display panel in another embodiment of the present application is shown.

[0050] In another alternative embodiment, the conductive ink layer 20 extends from the first surface 10a of the display layer group 10 through the first step 31 to the surface of the polarizer 30 on the side facing away from the display layer group 10, and the conductive ink layer 20 fills the concave portion at the second step 41. At the same time, the surface of the conductive ink layer 20 filling the second step 41 on the side facing away from the polarizer 30 is flush with the surface of the touch control unit 40. Among them, there is a gap between the conductive ink layer 20 and the touch control unit 40 (see Figure 1 ) or they are in contact (see Figure 2 ). In this way, while increasing the attachment area of the conductive ink layer 20, the space on the touch control unit 40 occupied by the conductive ink layer 20 is avoided.

[0051] In some embodiments, the thickness of the conductive ink layer 20 is 4.5μm ± 2μm. It can be understood that when the thickness of the conductive ink layer 20 is too thick, on the one hand, the cost will increase, and on the other hand, the thickness of the display panel will increase; while when the thickness of the conductive ink layer 20 is too thin, it is easy to cause uneven coverage of the conductive ink layer 20, thus affecting the electrostatic discharge effect. Based on this, in this embodiment, the thickness of the conductive ink layer 20 is set to 4.5μm ± 2μm, such as 2.5μm, 3μm, 3.5μm, 4μm, 4.5μm, 5μm, 5.5μm, 6μm, 6.5μm, so as to ensure that the conductive ink layer 20 can be evenly covered to achieve a good electrostatic discharge effect while ensuring that the display panel has a relatively thin thickness and low cost.

[0052] Based on the same inventive purpose, the present application also provides a method for manufacturing a display panel.

[0053] Figure 3 The flowchart of the method for manufacturing a display panel in an embodiment of the present application is shown.

[0054] Refer to Figure 1 and Figure 3 In an embodiment of the present application, the method for manufacturing a display panel includes the following steps:

[0055] Step S1: Provide a display panel as described in the above embodiment;

[0056] Step S2: Clean the surface of the display layer group 10; wherein, the display layer group 10 has a first surface 10a, a second surface 10b and a side surface 10c, the first surface 10a and the second surface 10b are oppositely arranged, and the side surface 10c is connected between the first surface 10a and the second surface 10b;

[0057] Step S3: Set a conductive ink layer 20 on at least the side surface 10c of the cleaned display layer group 10, and the conductive ink layer 20 is in direct contact with the side surface 10c.

[0058] In the method for manufacturing a display panel provided in this embodiment, before setting the conductive ink layer 20 on the surface of the display layer group 10, by first cleaning the surface of the display layer group 10 to remove impurities such as organic substances on the surface of the display layer group 10, when the conductive ink layer 20 is directly contacted with the surface of the display layer group 10 subsequently, the conductive ink layer 20 is not easy to detach. Since there is no need to add other layer structures between the conductive ink layer 20 and the display layer group 10, the setting process of the conductive ink layer 20 is simple and has fewer steps, thus simplifying the manufacturing process of the display panel and improving production efficiency.

[0059] Optionally, the surface of the display layer group 10 is cleaned, including cleaning inorganic foreign matters on the surface of the display layer group 10 and cleaning organic foreign matters on the surface of the display layer group 10. Among them, inorganic foreign matters can be rinsed with water or cleaned by rotating a brush. When cleaning with water, high-pressure particulate jet cleaning technology can be adopted. By increasing the pressure of water, it is sprayed on the surface of the glass substrate in the form of high-pressure water particles at the nozzle to achieve the purpose of removing large particulate foreign matters on the surface; or, carbon dioxide can be mixed into the water to form carbonic acid to make the water conductive to achieve the purpose of removing static electricity; or, water and air are sprayed out of the nozzle at a certain pressure and in a certain proportion. The nozzle can adopt a fan-shaped spraying mode or a water curtain spraying mode.

[0060] The cleaning of organic foreign matters includes ultraviolet light cleaning, plasma cleaning, laser-assisted cleaning, and cleaning with a cleaning agent. Among them, ultraviolet light cleaning uses a UV light source to emit ultraviolet light. The ultraviolet light breaks the carbon-carbon bonds and carbon-hydrogen bonds in the organic foreign matters on the surface of the glass substrate. At the same time, oxygen molecules in the air generate oxygen atoms after absorbing ultraviolet light. The products after the carbon-carbon bonds and carbon-hydrogen bonds in the organic foreign matters are broken form volatile carbon dioxide gas and water vapor under the action of oxygen atoms, thereby achieving the cleaning effect. Plasma cleaning uses free radicals generated by the plasma to react with organic foreign matters and then removes them in the form of air flow, thereby achieving the cleaning effect. The main mechanism of laser-assisted cleaning is laser heating to destroy the environment of the particles, thereby achieving the purpose of removing the particles. Cleaning with a cleaning agent mainly uses acidic, alkaline or neutral chemical substances to form a solution with a certain concentration with deionized water to clean the surface of the glass substrate. Commonly used chemical reagents include ammonia-hydrogen peroxide solution, chromic acid-sulfuric acid mixture, TMAH dilution solution, and hydrofluoric acid dilution solution.

[0061] In an optional embodiment, cleaning the surface of the display layer group 10 includes: cleaning organic impurities on the surface of the display layer group 10 with a chemical cleaning agent. Cleaning the organic impurities on the surface of the display layer group 10 with a chemical cleaning agent has a simple process and low cost.

[0062] Based on the same inventive purpose, the present application also provides a display device, which includes the display panel in the above embodiment.

[0063] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, 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, it should be considered to be within the scope described in this specification.

[0064] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patented application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A display panel, characterized in that, include: A display layer group, the display layer group having a first surface, a second surface and a side surface, the first surface is arranged opposite to the second surface, the side surface is connected between the first surface and the second surface, and the display layer group includes a display area and a non-display area surrounding the display area; as well as A conductive ink layer, wherein the conductive ink layer is at least disposed on the side surface, and the conductive ink layer is in direct contact with the side surface, and the area on the first surface corresponding to the non-display area, the side surface, and the second surface are all covered with the conductive ink layer; The display layer group includes an encapsulation glass having a closed inner cavity and a liquid crystal layer arranged in the closed inner cavity; The conductive ink layer is disposed on the outer surface of the encapsulation glass, and the conductive ink layer is in direct contact with the outer surface of the encapsulation glass; The encapsulation glass comprises a first glass substrate, a second glass substrate and a side glass substrate, wherein the first glass substrate and the second glass substrate are arranged opposite to each other, and the side glass substrate is connected between the first glass substrate and the second glass substrate to enclose and form the closed inner cavity; The outer surface of the first glass substrate forms the first surface, the outer surface of the second glass substrate forms the second surface, and the outer surface of the side glass substrate forms the side surface; The outer surface of the side glass substrate includes a first side surface, a second side surface, and a third side surface connected in sequence; The first side surface is connected between the second side surface and the first surface, and the first side surface is inclined relative to the first surface; The third side surface is connected between the second side surface and the second surface, and the third side surface is inclined relative to the second surface; The angle at which the first side surface is inclined relative to the first surface is equal to the angle at which the third side surface is inclined relative to the second surface.

2. The display panel according to claim 1, wherein The conductive ink layer includes a first ink layer and a second ink layer; The first ink layer and the second ink layer completely cover the side surface, and the first ink layer extends from the side surface to the first surface, and the second ink layer extends from the side surface to the second surface.

3. The display panel according to claim 1, wherein The display panel further includes a polarizer disposed on the first surface; The edge of the polarizer and the edge of the display layer group form a first step; The conductive ink layer extends from the first surface of the display layer group through the first step to a surface of the polarizer facing away from the display layer group.

4. The display panel according to claim 1, characterized in that The thickness of the conductive ink layer is 4.5 μm±2 μm.

5. A method for manufacturing a display panel, characterized in that, The method comprises the following steps: Providing a display panel as claimed in any one of claims 1 to 4; Cleaning the surface of the display layer group; wherein the display layer group has a first surface, a second surface and a side surface, the first surface is arranged opposite to the second surface, and the side surface is connected between the first surface and the second surface; A conductive ink layer is disposed on at least the side surface of the cleaned display layer group, and the conductive ink layer is in direct contact with the side surface.

6. The manufacturing method of the display panel according to claim 5, characterized in that, The cleaning of the surface of the display layer group comprises: A chemical cleaning agent is used to clean the organic impurities on the surface of the display layer group.

7. A display device, characterized in that, Comprising a display panel as described in any one of claims 1-4.

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