Wiring printing apparatus and wiring printing method

By coordinating the printing and driving components of the wiring printing device, precise transfer of the conductor liquid is achieved, solving the problems of wiring tilt and substrate damage in the flexible extrusion method, and improving the manufacturing accuracy and uniformity of the wiring.

CN117393455BActive Publication Date: 2026-06-26CHENGDU VISTAR OPTEOLECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHENGDU VISTAR OPTEOLECTRONICS CO LTD
Filing Date
2022-07-04
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In the existing technology, the flexible extrusion method for forming traces has problems such as skewed traces after printing, poor line width uniformity, and easy damage to the substrate.

Method used

A wiring printing apparatus is used, which includes a printing component and a driving component. The printing component consists of multiple body parts. The driving component makes the body parts fit against the substrate, and through the cooperation of the conductor liquid cavity and the wiring groove, the conductor liquid is accurately transferred to form wiring corresponding to the substrate surface.

Benefits of technology

It improves the manufacturing precision of the traces, prevents substrate damage, reduces process deviations, and ensures that the shape and size of the traces meet design requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a wiring printing device and a wiring printing method. The wiring printing device comprises a printing assembly and a driving assembly. The printing assembly comprises at least one body part. The body part comprises a wiring groove and a conductor liquid containing cavity which are in communication with each other. The conductor liquid containing cavity is used for containing conductor liquid. The conductor liquid containing cavity comprises a liquid inlet and a liquid outlet which is in communication with the wiring groove. The wiring groove is used for limiting the conductor liquid to form a wiring. The driving assembly is connected with the printing assembly and is used for driving the printing assembly to move. The wiring printing device provided by the application can reduce process deviation in the wiring preparation process and improve the preparation yield of the wiring.
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Description

Technical Field

[0001] This application belongs to the field of display technology, and in particular relates to a line printing apparatus and a line printing method. Background Technology

[0002] There are several ways to form traces on the substrate of a display panel. Specifically, traces can be formed by printing, and currently the mainstream printing unit mainly uses flexible extrusion.

[0003] When forming traces using flexible extrusion, the conductor material for the trace needs to be formed on an extruder, then aligned with the substrate, and extruded to print the conductor material on the extruder onto the substrate. However, this process suffers from issues such as trace tilting after printing and poor trace width uniformity. Furthermore, this process can easily cause tangential stress in the substrate fixing device and the extrusion force, posing a risk of crushing the substrate. Therefore, traces formed by flexible extrusion deviate from the original design, resulting in a low trace fabrication yield. Summary of the Invention

[0004] This application provides a wiring printing apparatus and a wiring printing method, which can reduce process deviations during wiring fabrication.

[0005] The first aspect of this application provides a wiring printing apparatus, comprising:

[0006] A printing assembly, the printing assembly including at least one body portion, the body portion including a wiring groove and a conductor liquid cavity communicating with each other, the conductor liquid cavity for containing conductor liquid, the conductor liquid cavity including a liquid inlet and a liquid outlet communicating with the wiring groove, the wiring groove for limiting the conductor liquid to form wiring;

[0007] A driving component, connected to the printing component, is used to drive the printing component to move.

[0008] Furthermore, the printing assembly includes three body portions, namely a first body portion, a second body portion, and a third body portion. The first body portion and the second body portion are disposed opposite to each other, and the first body portion, the second body portion, and the third body portion enclose a receiving space. The wiring groove includes a first wiring groove, a second wiring groove, and a third wiring groove. The first body portion includes the first wiring groove, the second body portion includes the second wiring groove, and the third body portion includes the third wiring groove. The first wiring groove, the second wiring groove, and the third wiring groove all open toward the receiving space.

[0009] Furthermore, the first end of the third wiring groove is connected to the first wiring groove, and the other end of the third wiring groove is connected to the second wiring groove.

[0010] Furthermore, the second body portion and the third body portion are integrally formed, or...

[0011] The second body part is integrally formed with the first body part, or,

[0012] The second body part is integrally formed with the first body part and the third body part.

[0013] Furthermore, the main body includes a plurality of wiring channels and a plurality of conductor liquid cavities, with each of the plurality of conductor liquid cavities corresponding to and connected to the plurality of wiring channels.

[0014] Furthermore, the cable tray includes two opposing sidewalls and a top wall connecting the two sidewalls, with the liquid outlet located on the top wall.

[0015] Furthermore, the printing assembly also includes a stop block disposed in the wiring groove, the stop block being slidable along the length direction of the wiring groove.

[0016] Furthermore, the wiring printing device also includes a liquid replenishment device, which includes a liquid supply module and a liquid guide for connecting the liquid supply module and the liquid inlet;

[0017] Preferably, the liquid supply module includes a liquid cavity for containing the conductor liquid, a pusher plate for pushing the conductor liquid in the liquid cavity into the liquid guide member, and a control device for controlling the operation of the pusher plate.

[0018] Furthermore, the liquid replenishment device also includes a calculation module, which can provide data signals to the control device according to the volume of the wiring groove, so that the control device can control the pusher plate to push a preset volume of conductor liquid.

[0019] A second aspect of this application also provides a wiring printing method, including:

[0020] A substrate to be printed is provided, the substrate to be printed includes a printing area;

[0021] The substrate to be printed is placed on a platform, and the wiring printing device is moved by the drive component so that the body of the wiring printing device is in contact with the surface of the substrate to be printed, and the opening of the wiring groove of the body is aligned with the area to be printed.

[0022] Conductive fluid is supplied to the conductor fluid cavity of the main body through a fluid replenishment device, and then the conductor fluid is supplied to the wiring groove of the main body, wherein the conductor fluid cavity is connected to the wiring groove;

[0023] The conductive liquid is solidified to form a trace.

[0024] The wiring printing apparatus provided in this application includes a printing component and a driving component. The printing component includes at least one body portion, which includes a wiring groove and a conductor liquid cavity that are interconnected. The conductor liquid cavity is used to contain conductor liquid and includes an inlet and an outlet communicating with the wiring groove. The conductor liquid in the conductor liquid cavity can enter the wiring groove through the outlet. The wiring groove limits the conductor liquid to form a wiring. The wiring groove includes an opening for facing the substrate, and the wiring groove has the same size as the wiring to be printed. During the wiring printing process, the driving component can drive the body portion to move so that the body portion is in contact with the surface of the substrate, thereby aligning the opening of the wiring groove with the area to be printed on the substrate. Conductor liquid is injected into the wiring groove through the conductor liquid cavity to fill the wiring groove, thereby forming a wiring with the same size as the wiring groove. This completes the precise transfer of the wiring, improves the manufacturing accuracy of the wiring, prevents the formed wiring from having manufacturing defects such as shape and size, and prevents damage to the substrate when forming wiring using this wiring printing apparatus. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a wiring printing apparatus before it is coupled with a substrate according to the first embodiment of this application;

[0027] Figure 2 yes Figure 1 A schematic diagram of the wiring printing device after it is assembled with the substrate;

[0028] Figure 3 yes Figure 2 A further structural schematic diagram of the wiring printing device after it is assembled with the substrate;

[0029] Figure 4 yes Figure 3 A schematic diagram of the partial structure of the wiring printing device after it is assembled with the substrate;

[0030] Figure 5 yes Figure 4 A schematic diagram of the structure of the middle substrate (after printed wiring);

[0031] Figure 6 yes Figure 4A schematic diagram of one embodiment of the arrangement of the first body part, the second body part and the third body part of the wiring printing device shown.

[0032] Figure 7 yes Figure 4 A schematic diagram of another embodiment of the arrangement of the first body part, the second body part, and the third body part of the wiring printing device shown.

[0033] Figure 8 yes Figure 6 Enlarged view of region F in the middle;

[0034] Figure 9 yes Figure 6 A schematic diagram of a structural embodiment of any one of the first, second, and third body parts;

[0035] Figure 10 yes Figure 6 A schematic diagram of a structural embodiment of either the first body part or the second body part;

[0036] Figure 11 yes Figure 6 A schematic diagram of another embodiment of either the first body part or the second body part;

[0037] Figure 12 yes Figure 6 Schematic diagram of the structure of the third body section;

[0038] Figure 13 yes Figure 10 , Figure 11 , Figure 12 A cross-sectional view along line E-E';

[0039] Figure 14 yes Figure 10 , Figure 11 , Figure 12 Another sectional view along the middle line E-E';

[0040] Figure 15 This is a schematic diagram of the structure of a wiring printing apparatus according to the second embodiment of this application;

[0041] Figure 16 This is a schematic diagram of the structure of a wiring printing apparatus according to the third embodiment of this application;

[0042] In the attached image:

[0043] 1-Wire routing printing device; 10-Printing assembly; 101-Main body; 1011-Wire routing groove; 10111-Side wall; 10112-Top wall; 1012-Conductor liquid cavity; 1013-Inlet; 1014-Outlet; 1015-First main body; 1016-Second main body; 1017-Third main body; 1018-Accommodation space; 1019-First wire routing groove; 1020-Second wire routing groove; 10 21-Third wiring channel; 11-Drive assembly; 12-Block; 13-Liquid replenishment device; 131-Liquid supply module; 1311-Liquid cavity; 1312-Push plate; 1313-Control device; 132-Liquid guide; 133-Computing module; 2-Substrate; 21-First surface; 211-First wiring; 22-Second surface; 221-Second wiring; 23-Third surface; 231-Third wiring; 3-Conducting liquid. Detailed Implementation

[0044] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description in order to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples thereof.

[0045] To better understand this application, the following will be combined with... Figures 1 to 16 The wiring printing apparatus and wiring printing method according to embodiments of this application will be described in detail.

[0046] Please see Figures 1 to 14 This application provides a wiring printing apparatus 1 according to a first embodiment, including a printing assembly 10, a driving assembly 11, and a liquid replenishment device 13. The printing assembly 10 includes three body portions 101, each comprising a first body portion 1015, a second body portion 1016, and a third body portion 1017. These three body portions 1015, 1016, and 1017 enclose a receiving space 1018 for accommodating the end portion of a substrate 2. The driving assembly 11 is connected to each of the three body portions 101 and can control the movement of each body portion 101, thereby enclosing the receiving space 1018. Figure 1 As shown, the three body parts 101 are controlled to be in a separated state by the drive component 11, so that the end of the substrate 2 to be printed can be placed into the receiving space 1018 formed by the three body parts 101. Then, as shown... Figure 2As shown, substrate 2 includes a first surface 21 and a second surface 22 disposed opposite to each other. Substrate 2 also includes a third surface 23 connecting the first surface 21 and the second surface 22. The three body parts 101 can be controlled to move by the driving component 11 to wrap around the end of the substrate 2 to be printed, so as to print traces on the first surface 21, the second surface 22 and the third surface 23 of the substrate 2 to be printed. In the trace printing apparatus 1 provided in the embodiments of this application, the printing component 10 includes three body parts 101. In other embodiments, the printing component 10 may also include one body part 101, two body parts 101 or more body parts 101. This application does not make any particular limitation.

[0047] Each body portion 101 includes a wiring groove 1011 and a conductor liquid cavity 1012. The conductor liquid cavity 1012 is used to contain conductor liquid 3. The conductor liquid cavity 1012 includes an inlet 1013 and an outlet 1014 communicating with the wiring groove 1011. The wiring groove 1011 is used to limit the conductor liquid 3 to form wiring. The number of conductor liquid cavities 1012 can be one or more. The conductor liquid cavity 1012 communicates with each wiring groove 1011 to provide conductor liquid 3 to each wiring groove 1011. The body portion 101 in the printing assembly 10 can be a replaceable part. Different body portions 101 are provided with different wiring grooves 1011 to form different wiring. Figure 8 , Figure 13 and Figure 14 As shown, the cable tray 1011 includes two opposing side walls 10111 and a top wall 10112 connecting the two side walls 10111. The liquid outlet 1014 is located on the top wall 10112 of the cable tray 1011. The liquid outlet 1014 is located on the top wall 10112 of the cable tray 1011. On the one hand, it facilitates the better entry of the conductor liquid 3 into the cable tray 1011 under the action of gravity. On the other hand, it can prevent the conductor liquid cavity 1012 from occupying the space between the cable trays 1011, so that the spacing between the cable trays 1011 is wider.

[0048] In one feasible implementation, such as Figure 13 As shown, the main body 101 contains multiple wiring channels 1011 and one conductor liquid cavity 1012, which communicates with the multiple wiring channels 1011. In another feasible embodiment, as... Figure 14 As shown, the main body 101 has multiple wiring grooves 1011 and multiple conductor liquid cavities 1012, and the conductor liquid cavities 1012 are connected to the wiring grooves 1011 in a one-to-one correspondence.

[0049] In the above embodiments, the conductor liquid 3 in the conductor liquid cavity 1012 at a preset position can be controlled to enter the corresponding wiring groove 1011, thereby controlling the formation of wiring in the wiring groove 1011 at the preset position. That is, the above embodiments can adjust the spacing and number of generated wiring, thereby making the application range of the wiring printing device 1 wider.

[0050] Combination Figures 4 to 5 The three body parts 101 include a first body part 1015, a second body part 1016 and a third body part 1017. The first body part 1015 prints lines on the first surface 21, the second body part 1016 prints lines on the second surface 22, and the third body part 1017 prints lines on the third surface 23.

[0051] The first body portion 1015 includes a first wiring groove 1019 for printing wiring onto the first surface 21 of the substrate 2, the second body portion 1016 includes a second wiring groove 1020 for printing wiring onto the second surface 22 of the substrate 2, and the third body portion 1017 includes a third wiring groove 1021 for printing wiring onto the third surface 23 of the substrate 2.

[0052] In the first body part 1015, the first wiring groove 1019 can extend along the first direction x, wherein the first direction x is the arrangement direction of the third body part 1017 and the first body part 1015 when the three body parts 101 enclose the accommodating space 1018.

[0053] In the second body part 1016, the second wiring groove 1020 can extend along the first direction x, wherein the first direction x is the arrangement direction of the third body part 1017 and the second body part 1016 when the three body parts 101 enclose the accommodating space 1018.

[0054] In the third body part 1017, the third wiring groove 1021 extends along the second direction y, where the second direction y is the arrangement direction of the first body part 1015 and the second body part 1016 when the three body parts 101 enclose the receiving space 1018, and the second direction y intersects the first direction x. The length of the third wiring groove 1021 along the second direction y can be less than the length of the third body part 1017 along the second direction y, as long as it is ensured that when the three body parts 101 enclose the receiving space 1018, one end of the third wiring groove 1021 is connected to a first wiring groove 1019, and the other end of the third wiring groove 1021 is connected to a second wiring groove 1020.

[0055] There are various ways to arrange the first body part 1015, the second body part 1016, and the third body part 1017. Figure 6 and Figure 7 Two configuration methods are shown respectively.

[0056] In one feasible implementation, such as Figure 6 As shown, the first body part 1015, the second body part 1016 and the third body part 1017 are separately arranged. The third body part 1017 includes a first receiving part 1022 for receiving the end of the first body part 1015 and a second receiving part 1023 for receiving the end of the second body part 1016. The positions of the first body part 1015, the second body part 1016 and the third body part 1017 are adjustable. This configuration facilitates better alignment of the first body portion 1015 and the third body portion 1017, and also facilitates better alignment of the second body portion 1016 and the third body portion 1017. This ensures that one end of the third wiring groove 1021 is connected to a first wiring groove 1019, and the other end of the third wiring groove 1021 is connected to a second wiring groove 1020. Furthermore, this configuration improves the alignment of the third wiring groove 1021 with the first wiring groove 1019 and the second wiring groove 1020, preventing short circuits between the wirings caused by misalignment.

[0057] In another feasible implementation, such as Figure 7 As shown, the second body portion 1016 and the third body portion 1017 are integrally formed. The third body portion 1017 includes a first receiving portion 1022 for accommodating the end portion of the first body portion 1015. The positions of the second body portion 1016 and the first body portion 1015 are adjustable. This arrangement facilitates placing the end portion of the substrate 2 between the first body portion 1015 and the second body portion 1016, ensuring a tight fit with both and preventing the conductor liquid 3 in the first wiring groove 1019 and the second wiring groove 1020 from flowing out. Integrating the second body portion 1016 and the third body portion 1017 reduces the number of adjustments required for the body portion 101, simplifies the manufacturing process, and fixes the relative positional relationship between the second wiring groove 1020 in the second body portion 1016 and the third wiring groove 1021 in the third body portion 1017, preventing alignment deviations.

[0058] Combination Figure 3 As shown, the liquid replenishment device 13 includes a liquid supply module 131 and a liquid guide 132. One end of the liquid guide 132 is connected to the liquid supply module 131, and the other end of the liquid guide 132 is connected to the inlet 1013 of the conductor liquid cavity 1012 of the main body 101. The liquid guide 132 is used to supply the conductor liquid 3 in the liquid supply module 131 into the conductor liquid cavity 1012 of the main body 101, and then into the wiring groove 1011.

[0059] The liquid supply module 131 includes a liquid cavity 1311 for containing conductive liquid 3, a pusher plate 1312 for pushing the conductive liquid 3 in the liquid cavity 1311 into the liquid guide member 132, and a control device 1313 for controlling the operation of the pusher plate 1312. The pusher plate 1312 can be moved by the control device 1313, thereby controlling the flow rate of the conductive liquid 3 in the liquid cavity 1311 to the liquid guide member 132 by controlling the displacement of the pusher plate 1312. Specifically, the control device 1313 can be a cylinder or the like, and this application does not make any particular limitation.

[0060] The liquid guide 132 is a conduit, one end of which is connected to the liquid cavity 1311 of the liquid supply module 131, and the other end of which is connected to the conductor liquid cavity 1012. The liquid guide 132 can also be reused as a connector for connecting the main body 101 and the drive assembly 11. The drive assembly 11 controls the movement of the connector to drive the movement of each main body 101.

[0061] The liquid replenishment device 13 also includes a calculation module 133, which can provide data signals to the control device 1313 according to the volume of the wiring trough 1011, so that the control device 1313 can push a preset volume of conductor liquid 3 through the push plate 1312.

[0062] The replenishing device 13 can be applied to different body parts 101. The calculation module 133 can calculate the volume of the wiring groove 1011 based on the size data of the wiring groove 1011 in different body parts 101, thereby providing data signals to the control device 1313, and controlling the displacement of the push plate 1312 through the control device 1313 to provide the wiring groove 1011 with a volume of conductor liquid 3 that is the same as the volume of the wiring groove 1011.

[0063] In one feasible implementation, such as Figure 9 As shown, the printing assembly 10 also includes a stop 12, which is disposed at at least part of the end of the wiring groove 1011. The stop 12 can slide along the length direction c of the wiring groove 1011 to adjust the length of the wiring formed by the wiring groove 1011.

[0064] In the above embodiment, by providing a stop 12 at the end of the wiring groove 1011, the length of the portion of the wiring groove 1011 that can accommodate the conductor liquid 3 can be adjusted by sliding the stop 12, thereby adjusting the length of the formed wiring.

[0065] Specifically, an opening can be provided on one side of the free end of the wiring groove 1011. The stop block 12 and part of the stop block driving device 14 for driving the stop block 12 to move extend into the wiring groove 1011 through the opening, so that the stop block 12 can be driven to move along the length direction c of the wiring groove 1011 by the stop block driving device 14. Specifically, the stop block driving device 14 can be a cylinder.

[0066] Please see Figure 15 This application provides a wiring printing apparatus 1 according to a second embodiment, comprising a printing assembly 10, a driving assembly 11, and a liquid replenishment device 13. The printing assembly 10 includes at least one body portion 101, which includes a wiring groove 1011 and a conductor liquid cavity 1012. The conductor liquid cavity 1012 is used to contain conductor liquid and includes an inlet 1013 and an outlet 1014 communicating with the wiring groove 1011. The wiring groove 1011 is used to limit the conductor liquid to form wiring. The driving assembly 11 is connected to the body portion 101 and is used to drive the body portion 101 to move. The liquid replenishment device 13 includes a liquid supply module 131 and a liquid guiding component 132.

[0067] Please see Figure 16 This application provides a wiring printing apparatus 1 according to a third embodiment, comprising a printing assembly 10 and a driving assembly 11. The printing assembly 10 includes at least one body portion 101, which includes a wiring groove 1011 and a conductor liquid cavity 1012. The conductor liquid cavity 1012 is used to contain conductor liquid and includes an inlet 1013 and an outlet 1014 communicating with the wiring groove 1011. The wiring groove 1011 is used to limit the conductor liquid 3 to form wiring. The driving assembly 11 is connected to the body portion 101 and is used to drive the body portion 101 to move.

[0068] In the above-described wiring printing apparatus 1, conductive liquid can be manually supplied to the conductive liquid cavity 1012. The conductive liquid enters the conductive liquid cavity 1012 through the inlet 1013, thereby realizing the printing of wiring. Specifically, since the capacity of the wiring groove 1011 in each body part 101 is fixed, the conductive liquid can be quantitatively injected manually, which is convenient and the volume of conductive liquid is controllable. Using manual injection makes the wiring printing apparatus 1 lighter.

[0069] This application also provides a wiring printing method, including:

[0070] S100, a substrate 2 to be printed is provided, the substrate 2 to be printed includes a printing area.

[0071] S200, the substrate 2 to be printed is placed on the stage, and the various body parts 101 of the wiring printing apparatus 1 are moved by the drive component 11. Each body part 101 is aligned and attached to each surface of the end of the substrate 2 to be printed, so that the opening of the wiring groove 1011 of each body part 101 is aligned with the area to be printed.

[0072] S300, the conductor liquid is supplied to the conductor liquid cavity 1012 of the main body 101 by the liquid replenishment device 13, and then to the wiring groove 1011 of the main body 101.

[0073] S400 solidifies the conductive liquid to form a trace.

[0074] Specifically, the curing method can be heat curing, etc., and this application does not make any special limitation.

[0075] S500, Remove wiring printing device 1.

[0076] In the above-mentioned wiring printing method, the preparation method is simple, and since the wiring is formed by transfer printing using the wiring printing device 1, on the one hand, there is no extrusion during the preparation process, thereby preventing damage to the substrate 2; on the other hand, the main body 101 of the wiring printing device 1 is provided with wiring grooves 1011, thereby accurately controlling the shape and size of the wiring and reducing process deviations during the wiring preparation process.

[0077] The wiring printing apparatus 1 provided in this application includes a printing assembly 10, a driving assembly 11, and a liquid replenishment device 13. The printing assembly 10 includes at least one body portion 101. The body portion 101 includes a wiring groove 1011 and a conductor liquid cavity 1012. The conductor liquid cavity 1012 is used to contain conductor liquid 3. The conductor liquid cavity 1012 includes an inlet 1013 and an outlet 1014 communicating with the wiring groove 1011. The conductor liquid 3 in the conductor liquid cavity 1012 can enter the wiring groove 1011 through the outlet 1014. The wiring groove 1011 is used to limit the conductor liquid 3 to form a wiring. The wiring groove 1011 includes an opening for facing the substrate 2, and the wiring groove 1011 has the same size as the wiring to be printed. During the wiring printing process, the main body 101 can be driven by the drive assembly 11 to make the opening of the wiring groove 1011 fit with the substrate 2, and the conductor liquid 3 is automatically replenished into the conductor liquid cavity 1012 by the liquid supply module 131 and the liquid guide 132, and the conductor liquid 3 is supplied to the wiring groove 1011 through the conductor liquid cavity 1012. Conductor liquid 3 is injected into 011 to fill the wiring groove 1011, thereby forming a wiring with the same size as the wiring groove 1011. This completes the precise transfer of the wiring, improves the manufacturing accuracy of the wiring, and prevents the wiring from having manufacturing defects such as shape and size. Furthermore, the wiring printing device does not squeeze the substrate 2 when printing to form the wiring, which can prevent damage to the substrate 2. At the same time, by setting the liquid replenishment device 13, the number of times conductor liquid 3 is added can be reduced, which can save process steps and thus help save process time.

[0078] With the development of display technology, the requirements for display devices are becoming increasingly stringent. High brightness, long lifespan, wide color gamut, low power consumption, and self-emissive large-area display devices represent the future direction of display technology. Micro-LED (miniature light-emitting diode) display panels possess these advantages. However, due to the mass transfer of Micro-LEDs and issues with cost and yield, splicing is generally used to form spliced ​​display panels, thereby achieving large-area displays while reducing process costs and complexity. For spliced ​​display panels comprising multiple sub-display panels, it is necessary to minimize the bezel of each sub-display panel to reduce splicing gaps and improve display quality. Specifically, the bonding terminals of the COF (Chip On Flex, or Chip On Film) and IC (driver chip) in the sub-display panels can be fabricated on the side of substrate 2 away from the light-emitting surface, thus achieving a narrow bezel. At this point, signal lines on the side of substrate 2 facing the light-emitting surface need to be routed to the side of substrate 2 away from the light-emitting surface, such as... Figure 4 and Figure 5 As shown, the trace includes a first trace 211 located on the side of the substrate 2 facing the light-emitting surface, a second trace 221 located on the side of the substrate 2 away from the light-emitting surface, and a third trace 231 located on the side of the substrate 2 and connected to the first trace 211 and the second trace 221. The wiring printing apparatus 1 provided in the above embodiments of this application can print on the first surface 21, the second surface 22, and the third surface 23 of the substrate 2 to obtain first wiring 211, second wiring 221, and third wiring 231. Specifically, the first wiring groove 1019 can be used to form the first wiring 211 on the first surface 21, the second wiring groove 1020 can be used to form the second wiring 221 on the second surface 22, and the third wiring groove 1021 can be used to form the third wiring 231 on the third surface 23. One end of each third wiring 231 is connected to a first wiring 211, and the other end is connected to a second wiring 221. This allows signal lines on the side of the substrate 2 facing the light-emitting surface to be led to the side of the substrate 2 away from the light-emitting surface, and the signal lines are bonded to the driver chip on the side of the substrate 2 away from the light-emitting surface. This reduces the bezel of the display panel and achieves a narrow bezel display. When this display panel is used to form a splicing display panel, the smaller bezel of the display panel improves the display effect of the splicing display panel. In this application, the first surface 21 can be the side of the substrate 2 facing the light-emitting surface, and the second surface 22 can be the side of the substrate 2 away from the light-emitting surface; or, the first surface 21 can be the side of the substrate 2 away from the light-emitting surface, and the second surface 22 can be the side of the substrate 2 facing the light-emitting surface. This application does not impose any particular limitation.

[0079] The embodiments described above are not exhaustive and do not limit the invention to specific examples. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to effectively utilize this application and its modifications. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A wire printing apparatus, characterized in that, include: A printing assembly, the printing assembly including at least one body portion, the body portion including a wiring groove and a conductor liquid cavity communicating with each other, the conductor liquid cavity for containing conductor liquid, the conductor liquid cavity including a liquid inlet and a liquid outlet communicating with the wiring groove, the wiring groove for limiting the conductor liquid to form wiring; A driving component, connected to the main body, is used to drive the main body to move, so that the main body is in contact with the surface of the substrate to be printed, and the opening of the wiring groove is aligned with the area to be printed on the substrate.

2. The wiring printing apparatus according to claim 1, characterized in that, The printing assembly includes three body parts, namely a first body part, a second body part, and a third body part. The first body part and the second body part are disposed opposite to each other, and the first body part, the second body part, and the third body part surround and form an accommodating space. The wiring groove includes a first wiring groove, a second wiring groove, and a third wiring groove. The first body part includes the first wiring groove, the second body part includes the second wiring groove, and the third body part includes the third wiring groove. The first wiring groove, the second wiring groove, and the third wiring groove all open toward the accommodating space.

3. The wiring printing apparatus according to claim 2, characterized in that, The first end of the third wiring groove is connected to the first wiring groove, and the other end of the third wiring groove is connected to the second wiring groove.

4. The wiring printing apparatus according to claim 2, characterized in that, The second body portion and the third body portion are integrally formed, or, The second body part is integrally formed with the first body part, or, The second body part is integrally formed with the first body part and the third body part.

5. The wiring printing apparatus according to claim 1, characterized in that, The main body includes a plurality of wiring channels and a plurality of conductor liquid cavities, with each of the plurality of conductor liquid cavities and the plurality of wiring channels corresponding to and connected to each other.

6. The wiring printing apparatus according to claim 1, characterized in that, The cable tray includes two opposite sidewalls and a top wall connecting the two sidewalls, with the liquid outlet located on the top wall.

7. The wiring printing apparatus according to claim 1, characterized in that, The printing assembly also includes a stop block disposed in the wiring groove, the stop block being slidable along the length direction of the wiring groove.

8. The wiring printing apparatus according to claim 1, characterized in that, The wiring printing device also includes a liquid replenishment device, which includes a liquid supply module and a liquid guide for connecting the liquid supply module and the liquid inlet.

9. The wiring printing apparatus according to claim 8, characterized in that, The liquid supply module includes a liquid cavity for containing the conductor liquid, a pusher plate for pushing the conductor liquid in the liquid cavity into the liquid guide member, and a control device for controlling the operation of the pusher plate.

10. The wiring printing apparatus according to claim 9, characterized in that, The liquid replenishment device also includes a calculation module, which can provide data signals to the control device according to the volume of the wiring groove, so that the control device can control the pusher plate to push a preset volume of conductor liquid.

11. A method for wire printing, characterized in that, include: A substrate to be printed is provided, the substrate to be printed includes a printing area; The substrate to be printed is placed on a platform, and the wiring printing device is moved by the drive component so that the body of the wiring printing device is in contact with the surface of the substrate to be printed, and the opening of the wiring groove of the body is aligned with the area to be printed. Conductive fluid is supplied to the conductor fluid cavity of the main body through a fluid replenishment device, and then the conductor fluid is supplied to the wiring groove of the main body, wherein the conductor fluid cavity is connected to the wiring groove; The conductive liquid is solidified to form a trace.