Display panel, display device, and method for manufacturing display panel

By setting conductive wires on the side surface of the substrate of the display panel and setting them at intervals from the connection terminals, and using solder paste to form a connector, the problem of poor electrical connection effect between the conductive wires and the connection terminals is solved, and the production yield and display effect are improved.

CN114300484BActive Publication Date: 2025-08-19TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202111629034.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-12-28
Publication Date
2025-08-19
Estimated Expiration
2041-12-28

AI Technical Summary

Technical Problem

The metal wiring process on the side of the existing display panel results in poor electrical connection between the conductive wire and the connecting terminal, affecting the yield of production.

Method used

Conductive wires are provided on the side surface of the substrate, and a connecting member is provided between the conductive wires and the connecting terminals to conduct them. Solder paste is used as the connecting material, and the connecting member is formed by dispensing or printing process.

Benefits of technology

The connection effect between conductive wires and connection terminals is improved, and the production yield and display effect of the display panel are improved.

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Abstract

The embodiments of the present application disclose a display panel, a display device, and a method for manufacturing a display panel. The display panel includes a substrate, a first terminal, a conductive wire, and a first connector. The substrate has a first surface, a second surface, and a side surface, the first surface and the second surface are arranged opposite to each other, the side surface is arranged between the first surface and the second surface, and the first terminal is arranged on the first surface of the substrate; the conductive wire is at least partially arranged on the side surface of the substrate, and the conductive wire and the first terminal are arranged at intervals; the first connector is arranged on the substrate, and the first connector is connected between the conductive wire and the first terminal to make the conductive wire and the first terminal conductive. The present application arranges the conductive wire on the side surface of the substrate, and the conductive wire is arranged at intervals from the first terminal, and arranges the first connector between the conductive wire and the first terminal, so that the conductive wire and the first terminal are conductive through the first connector, thereby improving the connection effect between the conductive wire and the first terminal and improving the production yield of the display panel.
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Description

Technical Field

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

[0002] With the increasing demand for narrow bezels and glass splicing technology, research on double-sided side metal routing is also increasing. Currently, the commonly used double-sided side metal routing process for display panels is silver paste pad printing. This method results in poor electrical connection between the conductive lines on the side of the display panel and the connecting terminals on the opposite sides of the display panel, resulting in low production yield of display panels. Summary of the Invention

[0003] Embodiments of the present application provide a display panel, a display device, and a method for manufacturing a display panel, which can solve the problem of poor electrical connection between conductive lines on the side surfaces of the display panel and connecting terminals on opposite sides.

[0004] An embodiment of the present application provides a display panel, comprising:

[0005] A substrate having a first surface, a second surface and a side surface, wherein the first surface and the second surface are arranged opposite to each other, and the side surface is arranged between the first surface and the second surface;

[0006] A first terminal is provided on the first surface of the substrate;

[0007] A conductive line is at least partially disposed on a side surface of the substrate; the conductive line is spaced apart from the first terminal;

[0008] The first connecting member is provided on the substrate, and the first connecting member is connected between the conductive line and the first terminal to make the conductive line and the first terminal conductive.

[0009] Optionally, in some embodiments of the present application, the first connecting member is at least partially located on the first surface; and / or the first connecting member is at least partially located on the side surface.

[0010] Optionally, in some embodiments of the present application, the display panel further includes a second terminal and a second connecting member; the second terminal is arranged on the second surface of the substrate, and the second terminal is spaced apart from the conductive line; the second connecting member is arranged on the substrate, and the second connecting member is connected between the conductive line and the second terminal to make the conductive line conductive to the second terminal.

[0011] Optionally, in some embodiments of the present application, the second connecting member is at least partially located on the second surface; and / or the second connecting member is at least partially located on the side surface.

[0012] Optionally, in some embodiments of the present application, the orthographic projection of the first terminal on the substrate at least partially overlaps with the orthographic projection of the second terminal on the substrate.

[0013] Optionally, in some embodiments of the present application, the first terminal is located on the first surface close to the side surface; and / or the second terminal is located on the second surface close to the side surface.

[0014] Optionally, in some embodiments of the present application, the display panel further includes a protective layer, which covers the first terminal, the second terminal, the conductive line, the first connector, and the second connector.

[0015] Optionally, in some embodiments of the present application, the substrate includes a driving circuit layer, a base substrate and a pixel layer arranged in sequence along the second surface toward the first surface, the pixel layer is electrically connected to the first terminal, and the driving circuit layer is electrically connected to the second terminal.

[0016] Optionally, in some embodiments of the present application, the material of the first terminal, the second terminal and the conductive wire includes one or more of copper, aluminum, molybdenum or titanium; the material of the first connector and the second connector includes solder paste.

[0017] Correspondingly, an embodiment of the present application further provides a display device, which includes any of the display panels described above.

[0018] Accordingly, an embodiment of the present application further provides a method for manufacturing a display panel, the method comprising:

[0019] A substrate is provided; the substrate has a first surface, a second surface and a side surface, the first surface and the second surface are arranged opposite to each other, and the side surface is arranged between the first surface and the second surface;

[0020] forming a first terminal on the first surface of the substrate;

[0021] forming a conductive line on a side surface of the substrate so that the conductive line is spaced apart from the first terminal;

[0022] A first connector is formed between the first terminal and the conductive line to connect the first terminal to the conductive line.

[0023] Optionally, in some embodiments of the present application, forming a first connector between the first terminal and the conductive wire includes:

[0024] forming solder paste between the first terminal and the conductive wire using a dispensing process to form a first connector; or,

[0025] A printing process is used to form solder paste between the first terminal and the conductive line to form a first connector.

[0026] Optionally, in some embodiments of the present application, the method further includes:

[0027] forming a second terminal on the second surface, so that the second terminal is spaced apart from the conductive line;

[0028] A second connecting member is formed between the second terminal and the conductive line to connect the second terminal to the conductive line.

[0029] Optionally, in some embodiments of the present application, forming a second connector between the second terminal and the conductive wire includes:

[0030] forming solder paste between the second terminal and the conductive wire using a dispensing process to form a second connector; or,

[0031] A printing process is used to form solder paste between the second terminal and the conductive line to form a second connector.

[0032] Optionally, in some embodiments of the present application, forming a conductive line on the side surface of the substrate includes:

[0033] Attaching a protective film to the first surface and the second surface, so that the protective film at least partially covers the first terminal and the second terminal;

[0034] Depositing a metal layer on the side surface of the substrate;

[0035] removing the protective film;

[0036] The metal layer is processed to form conductive lines.

[0037] Optionally, in some embodiments of the present application, forming a conductive line on the side surface of the substrate includes:

[0038] Attaching a protective film to the first surface and the second surface, so that the protective film at least partially covers the first terminal and the second terminal;

[0039] Depositing a metal layer on the side surface of the substrate;

[0040] processing the metal layer to form conductive lines;

[0041] The protective film is removed.

[0042] Optionally, in some embodiments of the present application, the method further includes:

[0043] A protective layer is formed on the substrate, so that the protective layer covers the first terminal, the second terminal, the conductive line, the first connector, and the second connector.

[0044] In an embodiment of the present application, a display panel includes a substrate, a first terminal, a conductive wire, and a first connector, wherein the substrate has a first surface, a second surface, and a side surface, the first surface and the second surface are arranged opposite to each other, the side surface is arranged between the first surface and the second surface, the first terminal is arranged on the first surface of the substrate, the conductive wire is at least partially arranged on the side surface of the substrate, the conductive wire is spaced apart from the first terminal, and the first connector is connected between the conductive wire and the first terminal to conduct electricity between the conductive wire and the first terminal. The present application arranges the conductive wire on the side surface of the substrate, and the conductive wire is spaced apart from the first terminal, and arranges the first connector between the conductive wire and the first terminal, so that the conductive wire and the first terminal are conducted through the first connector, thereby improving the connection effect between the conductive wire and the first terminal and improving the production yield of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0046] Figure 1 is a structural diagram of a display panel provided in an embodiment of the present application;

[0047] Figure 2 This embodiment of the present application provides Figure 1 AA view in;

[0048] Figure 3 is a structural schematic diagram of a display device provided in an embodiment of the present application;

[0049] Figure 4 is a flow chart of a method for manufacturing a display panel provided in an embodiment of the present application;

[0050] Figure 5 This embodiment of the present application provides Figure 4 A schematic structural diagram of step S200;

[0051] Figure 6 This embodiment of the present application provides Figure 4 A schematic structural diagram of step S300;

[0052] Figure 7 This embodiment of the present application provides Figure 4 Schematic diagram of the structure of step S400.

[0053] Description of reference numerals:

[0054]

[0055] DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; and "inside" and "outside" refer to the outline of the device.

[0057] The embodiments of the present application provide a display panel, a display device, and a method for manufacturing a display panel. Each of these is described in detail below. It should be noted that the order in which the following embodiments are described does not limit the preferred order of the embodiments.

[0058] First, the embodiment of the present application provides a display panel, such as Figure 1 and Figure 2 As shown, the display panel 100 includes a substrate 110 having a first surface 111, a second surface 112, and side surfaces. The first surface 111 and the second surface 112 are disposed opposite each other, and the side surfaces are disposed between the first surface 111 and the second surface 112. The substrate 110 serves as a supporting structure for the display panel 100, supporting other structures within the display panel 100. Furthermore, the substrate 110 may also include functional structures within the display panel 100. By designing the specific structure of the substrate 110, different display requirements of the display panel 100 can be met.

[0059] The display panel 100 includes a first terminal 120 disposed on the first surface 111 of the substrate 110. The first terminal 120 serves as a connection end of the first surface 111 of the substrate 110 and is used to connect to other structures of the display panel 100 to implement display control of the display panel 100.

[0060] It should be noted that the setting position of the first terminal 120 on the first surface 111 of the substrate 110 directly affects the connection method between the first terminal 120 and other structures. By designing the setting position of the first terminal 120, different structural designs and display requirements of the display panel 100 can be met.

[0061] Optionally, the display panel 100 includes a conductive line 140, at least part of which is arranged on the side surface of the substrate 110, and the side surface is connected between the first surface 111 and the second surface 112, that is, the conductive line 140 arranged on the side surface is used to lead the circuit structure of the first surface 111 of the substrate 110 to the second surface 112 of the substrate 110, so as to facilitate the optimization design of the circuit structure on the substrate 110, thereby facilitating the display control of the display panel 100.

[0062] Among them, the conductive line 140 is arranged at intervals from the first terminal 120, that is, the conductive line 140 on the side surface of the substrate 110 is not directly connected to the first terminal 120 of the first surface 111. This design method enables the specific setting position and design structure of the first terminal 120 and the conductive line 140 to be adjusted accordingly according to the structural design requirements of the display panel 100, and will not constrain each other, thereby making the setting method of the conductive line 140 and the first terminal 120 more flexible.

[0063] Optionally, the display panel 100 includes a first connecting member 150, which is arranged on the substrate 110. The first connecting member 150 is connected between the conductive line 140 and the first terminal 120 to make the conductive line 140 and the first terminal 120 conductive, that is, the first terminal 120 is electrically connected to the conductive line 140 through the first connecting member 150, thereby realizing the line structure of the first surface 111 of the substrate 110 being led to the side surface of the substrate 110.

[0064] Among them, the setting position of the first connecting member 150 can be adjusted accordingly according to the setting position of the first terminal 120 and the conductive wire 140. It is only necessary to ensure that the first terminal 120 and the conductive wire 140 can be electrically connected through the first connecting member 150, thereby making the setting method of the first terminal 120 and the conductive wire 140 more flexible, which is helpful to the overall structural design of the display panel 100.

[0065] In the embodiment of the present application, the display panel 100 includes a substrate 110, a first terminal 120, a conductive line 140 and a first connecting member 150, wherein the substrate 110 has a first surface 111, a second surface 112 and a side surface, the first surface 111 and the second surface 112 are arranged opposite to each other, the side surface is arranged between the first surface 111 and the second surface 112, the first terminal 120 is arranged on the first surface 111 of the substrate 110, the conductive line 140 is at least partially arranged on the side surface of the substrate 110, the conductive line 140 and the first terminal 120 are spaced apart, and the first connecting member 150 is connected between the conductive line 140 and the first terminal 120 to make the conductive line 140 and the first terminal 120 conductive. In the present application, a conductive line 140 is arranged on the side surface of the substrate 110, and the conductive line 140 is spaced apart from the first terminal 120, and a first connecting member 150 is arranged between the conductive line 140 and the first terminal 120, so that the conductive line 140 and the first terminal 120 are conductively connected through the first connecting member 150, thereby improving the connection effect between the conductive line 140 and the first terminal 120 and improving the production yield of the display panel 100.

[0066] Optionally, the first connector 150 is at least partially located on the first surface 111, that is, a gap is left between the first terminal 120 and the edge of the side surface of the substrate 110, so as to facilitate the design of the location of the first terminal 120. When the first connector 150 is entirely located on the first surface 111, the conductive wire 140 is entirely located on the side surface and extends to the connecting edge of the side surface and the first surface 111, or the conductive wire 140 is partially located on the side surface and partially located on the first surface 111, so that the first connector 150 can electrically connect the first terminal 120 and the conductive wire 140.

[0067] In some embodiments, the first connector 150 is at least partially located on the side surface, that is, the conductive wire 140 is entirely located on the side surface, and a gap is left between the conductive wire 140 and the edge of the first surface 111 of the substrate 110 to facilitate the design of the placement of the conductive wire 140. When the first connector 150 is entirely located on the side surface, the first terminal 120 is entirely located on the first surface 111 and extends to the connecting edge of the first surface 111 and the side surface, or the first terminal 120 is partially located on the first surface 111 and partially located on the side surface, so that the first connector 150 can electrically connect the first terminal 120 and the conductive wire 140.

[0068] In other embodiments, the first connector 150 is partially located on the first surface 111 and partially located on the side surface, that is, a gap is left between the first terminal 120 and the edge of the side surface, and a gap is left between the conductive wire 140 and the edge of the first surface 111. When manufacturing the first connector 150, it needs to be provided on both the first surface 111 and the side surface to achieve electrical connection between the first terminal 120 and the conductive wire 140. This structural design makes the arrangement of the first terminal 120 and the conductive wire 140 more flexible. After the first terminal 120 and the conductive wire 140 are arranged according to actual use requirements, the electrical connection between the first terminal 120 and the conductive wire 140 can be achieved by simply inserting the first connector 150 between the first terminal 120 and the conductive wire 140.

[0069] Optionally, the display panel 100 includes a second terminal 130 , which is arranged on the second surface 112 of the substrate 110 , wherein the second terminal 130 serves as a connection end of the second surface 112 of the substrate 110 , and is used to connect with other structures of the display panel 100 to achieve display control of the display panel 100 .

[0070] It should be noted that the location of the second terminal 130 on the second surface 112 of the substrate 110 directly affects the connection method between the second terminal 130 and other structures. By designing the location of the second terminal 130, different structural designs and display requirements of the display panel 100 can be met.

[0071] Among them, the second terminal 130 and the conductive line 140 are arranged at intervals, that is, the conductive line 140 on the side surface of the substrate 110 is not directly connected to the second terminal 130 of the second surface 112. This design method enables the specific setting position and design structure of the second terminal 130 and the conductive line 140 to be adjusted accordingly according to the structural design requirements of the display panel 100, and will not constrain each other, thereby making the setting method of the conductive line 140 and the second terminal 130 more flexible.

[0072] The display panel 100 further includes a second connector 160 disposed on the substrate 110 and connected between the conductive wire 140 and the second terminal 130 to provide electrical continuity between the conductive wire 140 and the second terminal 130. Specifically, the second terminal 130 is electrically connected to the conductive wire 140 via the second connector 160, thereby connecting the circuit structure on the first surface 111 of the substrate 110 to the side surface of the substrate 110 and then to the second surface 112 of the substrate 110, thereby enabling display control of the first surface 111 of the substrate 110 via the second surface 112 of the substrate 110.

[0073] Among them, the setting position of the second connecting member 160 can be adjusted accordingly according to the setting position of the second terminal 130 and the conductive line 140. It is only necessary to ensure that the second terminal 130 and the conductive line 140 can be electrically connected through the second connecting member 160, thereby making the setting method of the second terminal 130 and the conductive line 140 more flexible, which is helpful to the overall structural design of the display panel 100.

[0074] Optionally, the second connecting member 160 is at least partially located on the second surface 112, that is, a gap is left between the second terminal 130 and the edge of the side surface of the substrate 110; or, the second connecting member 160 is at least partially located on the side surface, that is, the conductive wire 140 is entirely located on the side surface, and a gap is left between the conductive wire 140 and the edge of the second surface 112 of the substrate 110; or, the second connecting member 160 is partially located on the second surface 112 and partially located on the side surface, that is, a gap is left between the second terminal 130 and the edge of the side surface, and a gap is left between the conductive wire 140 and the edge of the second surface 112, so that the second connecting member 160 can electrically connect the second terminal 130 and the conductive wire 140 together.

[0075] Among them, the arrangement of the second connecting member 160 on the second surface 112 and the side surface can refer to the above description of the arrangement of the first connecting member 150 on the first surface 111 and the side surface. It is only necessary to ensure that the second connecting member 160 has effective electrical connection to the second terminal 130 and the conductive wire 140, and no further details will be given here.

[0076] Optionally, the orthographic projection of the first terminal 120 on the substrate 110 and the orthographic projection of the second terminal 130 on the substrate 110 at least partially overlap, that is, the first terminal 120 and the second terminal 130 are arranged at corresponding positions on opposite sides of the substrate 110. This structural design facilitates defining the relative positions of the first terminal 120 and the second terminal 130, thereby facilitating the distribution design of the conductive wires 140 on the side surfaces.

[0077] In some embodiments, the orthographic projection of the first terminal 120 on the substrate 110 completely overlaps with the orthographic projection of the second terminal 130 on the substrate 110, that is, the first terminal 120 and the second terminal 130 have the same structure, and the first terminal 120 and the second terminal 130 are symmetrically distributed on opposite sides of the substrate 110. This structural design can further simplify the setting method of the conductive line 140 on the side surface and improve the production efficiency of the display panel 100.

[0078] Optionally, the first terminals 120 are located on the first surface 111 near the side surface, that is, the first terminals 120 are located near the connecting edge between the first surface 111 and the side surface, so as to facilitate electrical connection between the first terminals 120 and the conductive wires 140 on the side surface. Furthermore, placing the first terminals 120 near the connecting edge between the first surface 111 and the side surface can reduce the length of the conductive wires 140 and the first connectors 150, thereby reducing the length of the wiring from the first surface 111 to the side surface, reducing the overall resistance of this portion of the wiring, and facilitating improved display quality of the display panel 100.

[0079] Optionally, the second terminal 130 is located on the second surface 112 near the side surface, that is, the second terminal 130 is close to the connecting edge of the second surface 112 and the side surface, so as to facilitate the electrical connection between the second terminal 130 and the conductive line 140 on the side surface. At the same time, arranging the second terminal 130 near the connecting edge of the second surface 112 and the side surface can reduce the length of the conductive line 140 and the second connector 160, thereby reducing the length of the line from the side surface to the second surface 112, reducing the overall resistance of this part of the line, and facilitating an improved display effect of the display panel 100.

[0080] In some embodiments, the first terminal 120 is located on the first surface 111 near the side surface, and the second terminal 130 is located on the second surface 112 near the side surface, that is, the first terminal 120 and the second terminal 130 are both located near the edge of the side surface, thereby reducing the setting length of the first connecting member 150, the second connecting member 160 and the conductive wire 140, and further reducing the overall length and resistance of the line routing from the first surface 111 to the second surface 112, thereby facilitating the control of the display mode of the display panel 100 and improving the display effect of the display panel 100.

[0081] Optionally, the display panel 100 includes multiple first terminals 120 and multiple conductive lines 140, and the multiple first terminals 120 and the multiple conductive lines 140 are arranged in a one-to-one correspondence; the display panel 100 includes multiple first connecting members 150, and the multiple first connecting members 150 are connected between the corresponding first terminals 120 and the conductive lines 140, so that the multiple first terminals 120 and the multiple conductive lines 140 are electrically connected in a one-to-one correspondence, thereby realizing separate control of each area corresponding to the first terminal 120 in the display panel 100, and realizing different display requirements of the display panel 100.

[0082] Among them, multiple first terminals 120 are arranged in parallel on the first surface 111 near the side surface, and multiple conductive wires 140 are arranged in parallel on the side surface to facilitate the electrical connection between the first terminals 120 and the corresponding conductive wires 140 and simplify the routing design of multiple conductive wires 140 on the side surface.

[0083] Optionally, the display panel 100 includes multiple second terminals 130 and multiple second connecting members 160, and the multiple second terminals 130 are arranged in a one-to-one correspondence with the multiple conductive lines 140. The multiple second connecting members 160 are connected between the corresponding second terminals 130 and the conductive lines 140, so that the multiple second terminals 130 and the multiple conductive lines 140 are electrically connected in a one-to-one correspondence, thereby realizing a one-to-one electrical connection between the second terminals 130 and the first terminals 120, so as to facilitate the setting of the driving circuit on the display panel 100, and realize the control of the display mode of the first surface 111 of the substrate 110 on the second surface 112 of the substrate 110, thereby meeting different display requirements of the display panel 100.

[0084] Among them, multiple second terminals 130 are arranged in parallel on the second surface 112 near the side surface, and multiple conductive wires 140 are arranged in parallel on the side surface to facilitate the electrical connection between the second terminals 130 and the corresponding conductive wires 140 and simplify the routing design of multiple conductive wires 140 on the side surface.

[0085] It should be noted that multiple second terminals 130 and multiple first terminals 120 are arranged in a one-to-one correspondence on opposite sides of the substrate 110, so as to facilitate the electrical connection between the conductive wires 140 and the corresponding first terminals 120 and second terminals 130, simplify the distribution design of the conductive wires 140 on the side surface, reduce the overall resistance of the line routing from the first surface 111 to the second surface 112, and improve the display effect of the display panel 100.

[0086] Optionally, the display panel 100 further includes a protective layer 170. The protective layer 170 covers the first terminals 120, the second terminals 130, the conductive lines 140, the first connectors 150, and the second connectors 160. Specifically, the protective layer 170 covers the circuit structure on the substrate 110 to protect the circuit structure. This prevents failure of the display panel 100 due to damage to the circuit structure during manufacture or use of the display panel 100, thereby improving the stability of the display panel 100. Furthermore, the provision of the protective layer 170 can also flatten the surface of the display panel 100, improving the overall aesthetics of the display panel 100.

[0087] In some embodiments, the substrate 110 includes a driving circuit layer 113, a base substrate 114, and a pixel layer 115, which are sequentially arranged along the second surface 112 toward the first surface 111. The pixel layer 115 is electrically connected to the first terminal 120, and the driving circuit layer 113 is electrically connected to the second terminal 130. That is, the first terminal 120 is an electrical connection point for the pixel layer 115, and the second terminal 130 is an electrical connection point for the driving circuit layer 113. By electrically connecting the first terminal 120 and the second terminal 130 together via the first connector 150, the conductive line 140, and the second connector 160, the pixel layer 115 and the driving circuit layer 113 are electrically connected. This allows the pixels on the first surface 111 to be controlled by the driving circuit on the second surface 112, thereby optimizing the overall structural design of the display panel 100 and meeting different display requirements of the display panel 100.

[0088] In other embodiments, the substrate 110 includes a pixel layer 115, a base substrate 114, and a driving circuit layer 113, which are sequentially arranged along the second surface 112 toward the first surface 111. The pixel layer 115 is electrically connected to the second terminal 130, and the driving circuit layer 113 is electrically connected to the first terminal 120. That is, the pixel layer 115 and the driving circuit layer 113 are arranged in opposite positions, with the first terminal 120 being the electrical connection point for the driving circuit layer 113 and the second terminal 130 being the electrical connection point for the pixel layer 115. This can also optimize the overall structural design of the display panel 100. The specific arrangement can be adjusted accordingly based on the actual structural design requirements of the display panel 100 and is not particularly limited herein.

[0089] It should be noted that the pixel layer 115 includes a plurality of pixels, and the plurality of pixels are arranged in parallel on the base substrate 114, and the plurality of pixels are connected one-to-one with the plurality of first terminals 120, and the driving circuit layer 113 includes a plurality of driving circuits, and the plurality of driving circuits are connected one-to-one with the plurality of second terminals 130. By electrically connecting the plurality of pixels with the plurality of driving circuits one-to-one, it is possible to separately adjust the display modes of the plurality of pixels on the display panel 100 to meet different display requirements of the display panel 100.

[0090] Optionally, the material of the first terminal 120, the second terminal 130 and the conductive line 140 in the embodiment of the present application can be the same as the material of the metal layer in the display panel 100, including one or more of copper, aluminum, molybdenum or titanium, to ensure electrical conductivity between the first terminal 120, the second terminal 130 and the conductive line 140.

[0091] Among them, the materials of the first terminal 120, the second terminal 130 and the conductive wire 140 can be the same or different. The specific materials can be selected according to actual design requirements. It is only necessary to ensure normal conduction between the first terminal 120, the second terminal 130 and the conductive wire 140. No special restrictions are made here.

[0092] Optionally, the first connector 150 and the second connector 160 may be made of solder paste, which is a conductive substance containing a conductive metal to respectively connect the first terminal 120 and the conductive wire 140, and the second terminal 130 and the conductive wire 140. Using solder paste to form the first connector 150 and the second connector 160 facilitates adjusting the formation method of the first connector 150 and the second connector 160, thereby improving the connection between the first terminal 120 and the second terminal 130 and the conductive wire 140.

[0093] Secondly, the present application also provides a display device including a display panel. The specific structure of the display panel is similar to that of the above embodiments. Since the present display device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments. Detailed descriptions are omitted here.

[0094] Figure 3 A schematic diagram of the structure of a display device provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the display device 10 includes a display panel 100, a control circuit 200, and a housing 300. The housing 300 is connected to the display panel 100 to support and fix the display panel 100. The control circuit 200 is disposed in the housing 300 and is electrically connected to the display panel 100 to control the display panel 100 to display images.

[0095] The display panel 100 can be fixed to the housing 300 to form a whole with the housing 300. The display panel 100 and the housing 300 form a sealed space for accommodating the control circuit 200. The control circuit 200 can be the mainboard of the display device 10. At the same time, the control circuit 200 can also integrate one or more functional components such as a battery, an antenna structure, a microphone, a speaker, a headphone jack, a universal serial bus interface, a camera, a distance sensor, an ambient light sensor, a receiver, and a processor, so that the display device 10 can be adapted to various application fields.

[0096] It should be noted that the display device 10 is not limited to the above content, and it may also include other components, such as a camera, an antenna structure, a fingerprint unlocking module, etc., to expand its scope of use, which is not limited here. The display device 10 in the embodiment of the present application has a wide range of applications, including televisions, computers, and flexible displays and lighting such as foldable or rollable displays, all of which fall within the scope of the application field of the display device 10 in the embodiment of the present application.

[0097] Finally, the embodiment of the present application also provides a method for manufacturing a display panel, such as Figure 4As shown, the manufacturing method of the display panel 100 includes the following steps:

[0098] S100. Provide a substrate 110. Substrate 110 has a first surface 111, a second surface 112, and side surfaces. First surface 111 and second surface 112 are disposed opposite each other, and side surfaces are disposed between first surface 111 and second surface 112. Substrate 110 serves as a supporting structure for display panel 100, supporting other structures within display panel 100. Substrate 110 may also include functional structures within display panel 100. By designing the specific structure of substrate 110, different display requirements of display panel 100 can be met.

[0099] S200, forming a first terminal 120 on the first surface 111 of the substrate 110. Figure 5 As shown, the first terminal 120 is an electrical connection point of the functional structure on the first surface 111 of the substrate 110 , and is used to electrically connect to other structures to facilitate regulation of the functional structure on the first surface 111 .

[0100] It should be noted that the setting position of the first terminal 120 on the first surface 111 of the substrate 110 directly affects the connection method between the first terminal 120 and other structures. By designing the setting position of the first terminal 120, different structural designs and display requirements of the display panel 100 can be met.

[0101] The first terminals 120 can be located near the side surfaces of the first surface 111, that is, the first terminals 120 are located at the connecting edge of the first surface 111 and the side surfaces, so as to facilitate the connection of the first terminals 120 with other structures. In addition, placing the first terminals 120 at the edge of the first surface 111 can also prevent the first terminals 120 from affecting the overall display image of the display panel 100, thereby improving the display effect of the display panel 100.

[0102] S300: Form a conductive line 140 on the side surface of the substrate 110, so that the conductive line 140 is spaced apart from the first terminal 120. Figure 6 As shown, the side surface is connected between the first surface 111 and the second surface 112, that is, the conductive line 140 arranged on the side surface is used to lead the circuit structure of the first surface 111 of the substrate 110 to the second surface 112 of the substrate 110, so as to optimize the design of the circuit structure on the substrate 110, thereby facilitating the regulation of the display mode of the display panel 100.

[0103] Among them, the conductive line 140 and the first terminal 120 are arranged at intervals, that is, the conductive line 140 on the side surface of the substrate 110 is not directly connected to the first terminal 120 of the first surface 111. This design method enables the specific setting position and design structure of the first terminal 120 and the conductive line 140 to be adjusted accordingly according to the structural design requirements of the display panel 100, and will not constrain each other, thereby making the setting method of the conductive line 140 and the first terminal 120 more flexible.

[0104] S400: Form a first connector 150 between the first terminal 120 and the conductive line 140 to provide electrical continuity between the first terminal 120 and the conductive line 140. That is, the first terminal 120 is electrically connected to the conductive line 140 via the first connector 150, thereby extending the circuit structure on the first surface 111 of the substrate 110 to the side surface of the substrate 110.

[0105] like Figure 7 As shown, the setting position of the first connecting member 150 can be adjusted accordingly according to the setting position of the first terminal 120 and the conductive line 140. It is only necessary to ensure that the first terminal 120 and the conductive line 140 can be electrically connected through the first connecting member 150, thereby making the setting method of the first terminal 120 and the conductive line 140 more flexible, which is helpful to the overall structural design of the display panel 100.

[0106] Optionally, the first connector 150 may be a conductive material such as solder paste. In some embodiments, a dispensing process is used to form solder paste between the first terminal 120 and the conductive wire 140 to form the first connector 150. The dispensing process provides greater flexibility in the formation and structure of the first connector 150 and allows the position of the first connector 150 to be adjusted based on the positions of the first terminal 120 and the conductive wire 140, facilitating repair of the circuit between the first terminal 120 and the conductive wire 140.

[0107] In other embodiments, a printing process is used to form solder paste between the first terminal 120 and the conductive line 140 to form the first connector 150. A layer of solder paste is printed between the first terminal 120 and the conductive line 140 based on the relative positions of the first terminal 120 and the conductive line 140 to achieve electrical connection between the first terminal 120 and the conductive line 140. Compared with traditional patterning processes, the connection stability between the first terminal 120 and the conductive line 140 can be improved.

[0108] Optionally, the manufacturing method of the display panel 100 in the embodiment of the present application also includes the following steps: forming a second terminal 130 on the second surface 112 of the substrate 110, so that the second terminal 130 and the conductive line 140 are spaced apart; and then forming a second connecting member 160 between the second terminal 130 and the conductive line 140, so that the second terminal 130 and the conductive line 140 are conductive.

[0109] In some embodiments, a dispensing process is used to form solder paste between the second terminal 130 and the conductive line 140 to form the second connector 160. The dispensing process allows for greater flexibility in the formation, structural design, and location of the second connector 160, while also facilitating repair of the circuit between the second terminal 130 and the conductive line 140.

[0110] In other embodiments, a printing process is used to form solder paste between the second terminal 130 and the conductive line 140 to form the second connector 160. Compared to traditional patterning processes, printing a layer of solder paste between the second terminal 130 and the conductive line 140 to achieve electrical continuity between the second terminal 130 and the conductive line 140 can improve the connection stability between the second terminal 130 and the conductive line 140.

[0111] During the actual manufacturing process of the display panel 100, a first terminal 120 and a second terminal 130 can be formed on the first surface 111 and the second surface 112 of the substrate 110 respectively, and then a conductive line 140 is formed on the side surface, and the two ends of the conductive line 140 are spaced apart from the first terminal 120 and the second terminal 130 respectively. Finally, a first connecting member 150 is formed between the first terminal 120 and the conductive line 140, and a second connecting member 160 is formed between the second terminal 130 and the conductive line 140, thereby realizing electrical connection between the first terminal 120 and the second terminal 130.

[0112] It should be noted that the embodiment of the present application only describes the contents of each step, but does not impose any special restrictions on the specific formation order. It is only necessary to ensure that the first terminal 120 and the second terminal 130 are effectively electrically connected through the first connector 150, the conductive wire 140 and the second connector 160.

[0113] In some embodiments, forming the conductive line 140 on the side surface of the substrate 110 in step S300 mainly includes the following steps:

[0114] First, a protective film is attached to the first surface 111 and the second surface 112 so that the protective film at least partially covers the first terminal 120 and the second terminal 130; then a metal layer is deposited on the side surface of the substrate 110; then the protective film is removed; and finally, the metal layer is processed to form a conductive line 140.

[0115] Among them, a protective film is attached to the first surface 111 and the second surface 112 to protect the first terminal 120 and the second terminal 130, so as to prevent the metal layer from covering the first terminal 120 and the second terminal 130 due to the deposition angle when the metal layer is deposited on the side surface, which is not conducive to the subsequent setting of the conductive line 140 and may even cause crosstalk between two adjacent first terminals 120, affecting the control of the display mode of the display panel 100.

[0116] It should be noted that the protective film may partially cover the first terminal 120 and the second terminal 130, that is, the first terminal 120 and the second terminal 130 may be partially exposed, so that when the metal layer is deposited, the metal layer is partially connected to the first terminal 120 and the second terminal 130. When the protective film is removed, this portion of the metal layer may be peeled off, disconnecting the first terminal 120 and the second terminal 130 from the metal layer.

[0117] Alternatively, the protective film directly completely covers the first terminal 120 and the second terminal 130, so that during the deposition of the metal layer, the metal layer is directly disconnected from the first terminal 120 and the second terminal 130, which is conducive to the subsequent processing of the metal layer to form the conductive line 140 and avoid crosstalk between adjacent first terminals 120 or second terminals 130.

[0118] Among them, the protective film used can be a polyimide film or other release film. It only needs to ensure that the protective film can protect the first terminal 120 and the second terminal 130 during the formation of the conductive line 140, and is easy to peel off and remove after the production is completed, and no residue is formed on the substrate 110. There is no special restriction here.

[0119] Optionally, a metal layer may be deposited on the side surface of the substrate 110 by physical deposition, chemical deposition, or spraying, so that the metal layer covers the entire side surface of the substrate 110. The metal layer is then processed by laser lithography, dry etching, or wet etching to form a plurality of conductive lines 140 spaced apart on the side surface of the substrate 110.

[0120] Among them, the conductive line 140 can be any shape such as a straight line, a broken line or a curve. The distribution method and specific structure of multiple conductive lines 140 can be adjusted according to the actual design requirements of the laser or etching process. It is only necessary to ensure that the conductive line 140 is effectively conductive with the first terminal 120 and the second terminal 130.

[0121] In some other embodiments, forming the conductive line 140 on the side surface of the substrate 110 in step S300 mainly includes the following steps:

[0122] First, a protective film is attached to the first surface 111 and the second surface 112 so that the protective film at least partially covers the first terminal 120 and the second terminal 130; then a metal layer is deposited on the side surface of the substrate 110; then the metal layer is processed to form the conductive line 140; finally, the protective film is removed.

[0123] Among them, the manufacturing method adopts a manufacturing process of first forming the conductive line 140 and then removing the protective film, so that during the processing of the metal layer, the protective film can still play a protective role for the first terminal 120 and the second terminal 130, thereby preventing impurities generated during the processing of the metal layer from accumulating on the surface of the first terminal 120 and the second terminal 130 or between two adjacent first terminals 120 or second terminals 130, affecting the connection effect between the first connector 150 and the first terminal 120 or the connection effect between the second connector 160 and the second terminal 130, thereby affecting the regulation of the display mode of the display panel 100.

[0124] Optionally, the manufacturing method of the display panel 100 in the embodiment of the present application further includes: forming a protective layer 170 on the substrate 110, so that the protective layer 170 covers the first terminal 120, the second terminal 130, the conductive line 140, the first connector 150 and the second connector 160.

[0125] After forming the circuit structure on the first surface 111, the second surface 112, and the side surfaces of the substrate 110, a protective layer 170 is formed on the substrate 110 to protect the circuit structure. This prevents failure of the display panel 100 due to damage to the circuit structure during the manufacture or use of the display panel 100, thereby improving the stability of the display panel 100. Furthermore, the provision of the protective layer 170 can also flatten the surface of the display panel 100, improving the overall aesthetics of the display panel 100.

[0126] The above is a detailed introduction to a display panel, a display device and a method for manufacturing a display panel provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display panel, characterized in that: The display panel includes: A substrate having a first surface, a second surface, and a side surface, wherein the first surface and the second surface are arranged opposite to each other, and the side surface is arranged between the first surface and the second surface; the substrate comprises a driving circuit layer, a base substrate, and a pixel layer arranged in sequence along the second surface toward the first surface; A first terminal is provided on the first surface of the substrate; the first terminal is electrically connected to the pixel layer; A conductive line is at least partially disposed on a side surface of the substrate; the conductive line is spaced apart from the first terminal; a first connecting member, disposed on the substrate, connected between the conductive wire and the first terminal to connect the conductive wire to the first terminal; The first terminal and the first connecting member are made of different materials; the first connecting member and the conductive wire are made of different materials.

2. The display panel according to claim 1, wherein: The first connecting member is at least partially located on the first surface; and or the first connecting member is at least partially located on the side surface.

3. The display panel according to claim 1, wherein: The display panel also includes a second terminal and a second connecting member; the second terminal is arranged on the second surface of the substrate, and the second terminal is spaced apart from the conductive line; the second connecting member is arranged on the substrate, and the second connecting member is connected between the conductive line and the second terminal to make the conductive line conductive to the second terminal.

4. The display panel according to claim 3, wherein: The second connecting member is at least partially located on the second surface; and or the second connecting member is at least partially located on the side surface.

5. The display panel according to claim 3, wherein: An orthographic projection of the first terminal on the substrate at least partially overlaps with an orthographic projection of the second terminal on the substrate.

6. The display panel according to claim 3, wherein: The first terminal is located on the first surface close to the side surface; and or the second terminal is located on the second surface close to the side surface.

7. The display panel according to claim 3, wherein: The display panel further includes a protective layer covering the first terminal, the second terminal, the conductive line, the first connector, and the second connector.

8. The display panel according to claim 3, wherein: The driving circuit layer is electrically connected to the second terminal.

9. The display panel according to claim 3, wherein: The first terminal, the second terminal and the conductive wire are made of one or more of copper, aluminum, molybdenum or titanium; and the first connector and the second connector are made of solder paste.

10. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1 to 9.

11. A method for manufacturing a display panel, characterized in that: The method comprises: A substrate is provided; the substrate has a first surface, a second surface, and a side surface, the first surface and the second surface are arranged opposite to each other, and the side surface is arranged between the first surface and the second surface; the substrate includes a driving circuit layer, a base substrate, and a pixel layer arranged in sequence along the second surface toward the first surface; forming a first terminal on the first surface of the substrate; the first terminal being electrically connected to the pixel layer; forming a conductive line on a side surface of the substrate so that the conductive line is spaced apart from the first terminal; A first connector is formed between the first terminal and the conductive line to connect the first terminal to the conductive line. The first connector is made of a different material than the first terminal. The first connector is made of a different material than the conductive line.

12. The method for manufacturing a display panel according to claim 11, wherein: The forming of a first connecting member between the first terminal and the conductive line comprises: forming solder paste between the first terminal and the conductive wire using a dispensing process to form a first connector; or, A printing process is used to form solder paste between the first terminal and the conductive line to form a first connector.

13. The method for manufacturing a display panel according to claim 11, wherein: The method further comprises: forming a second terminal on the second surface of the substrate so that the second terminal is spaced apart from the conductive line; A second connecting member is formed between the second terminal and the conductive line to connect the second terminal to the conductive line.

14. The method for manufacturing a display panel according to claim 13, wherein: The forming of a second connecting member between the second terminal and the conductive line comprises: forming solder paste between the second terminal and the conductive wire using a dispensing process to form a second connector; or, A printing process is used to form solder paste between the second terminal and the conductive line to form a second connector.

15. The method for manufacturing a display panel according to claim 13, wherein: The step of forming a conductive line on the side surface of the substrate comprises: Attaching a protective film to the first surface and the second surface, so that the protective film at least partially covers the first terminal and the second terminal; Depositing a metal layer on the side surface of the substrate; removing the protective film; The metal layer is processed to form conductive lines.

16. The method for manufacturing a display panel according to claim 13, wherein: The step of forming a conductive line on the side surface of the substrate comprises: Attaching a protective film to the first surface and the second surface, so that the protective film at least partially covers the first terminal and the second terminal; Depositing a metal layer on the side surface of the substrate; processing the metal layer to form conductive lines; The protective film is removed.

17. The method for manufacturing a display panel according to claim 13, wherein: The method further comprises: A protective layer is formed on the substrate, so that the protective layer covers the first terminal, the second terminal, the conductive line, the first connector, and the second connector.

Citation Information

Patent Citations

  • Display panel, driving panel and manufacturing method thereof

    CN113571534A