Automatic display panel spraying processing system

Abstract

The invention relates to an automatic display panel spraying processing system which comprises an ink jet assembly, the ink jet assembly comprises an ink jet moving assembly and an electric atomization nozzle module, and the ink jet moving assembly drives the electric atomization nozzle module to move in a horizontal plane; the conveying assembly comprises a bearing table and a conveying driving part, and the conveying driving part drives the bearing table to move in the printing direction; the mask assembly comprises a mounting frame and a mask plate; wherein the substrate moves to the position under the mask plate along with the bearing table, and the electric atomization spray head module conducts electric atomization spray printing on the substrate above the mask plate. According to the application, the mask plate covers the surface of the substrate, and the functional liquid is sprayed to the mask plate by using the electric atomization nozzle module, so that the functional liquid is arranged at the corresponding position of the substrate, and all pixel grids of the substrate do not need to be printed one by one; the adhesion position of the functional liquid on the substrate is not easy to deviate, and the condition that part of pixel grids are missed to be printed is not easy to occur, so that the processing efficiency of the substrate is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to an automated display panel spray processing system. Background Art

[0002] QD (Quantum Dot) is a nanocrystalline particle with a radius less than or close to the Bohr exciton radius, and its particle size is generally between 1-20nm, also known as nanocrystal. Quantum dots have attracted widespread attention in the field of light-emitting displays due to their excellent properties such as adjustable emission wavelength, narrow emission spectrum line width, high color purity, wide excitation spectrum, high electron mobility, and flexible production. Domestic and foreign researchers have studied the use of quantum dot materials for electroluminescence, and have manufactured QLED (Quantum Dot Organic Light-emitting Display) based on methods and device structures similar to OLED.

[0003] Since quantum dots are inorganic nanoparticles and cannot be patterned using an evaporation process like organic small molecules, inkjet printing was once considered a commonly used preparation process for QLED displays.

[0004] In the related art, a nozzle module is used to directly print functional liquid at the pixel grid position on the substrate. The nozzle module includes a plurality of nozzle holes, and the functional liquid is respectively printed to the corresponding pixel grids on the substrate through the plurality of nozzle holes, thereby forming a light-emitting structure on the substrate.

[0005] However, as the nozzle module works, some of the nozzle holes may become abnormal due to being blocked by the functional liquid. For example, if the nozzle hole is partially blocked, the position of the functional liquid sprayed out may be deviated, causing the functional liquid to fall outside the pixel grid; for example, if the nozzle hole is completely blocked, the functional liquid cannot be sprayed out, causing some pixel grids on the substrate to be missed. Therefore, directly printing the functional liquid corresponding to the pixel grid of the substrate on the substrate is prone to deviation in the position of the functional liquid landing point and missing the pixel grid, which affects the display performance of the formed display device and makes it difficult to ensure the processing yield. Summary of the invention

[0006] The embodiment of the present application provides an automated display panel spray processing system to solve the technical problem in the related art that the functional liquid is directly printed onto the pixel grid of the substrate corresponding to the substrate, which is prone to functional liquid landing position deviation and pixel grid omission, affecting the display performance of the molded display device and making it difficult to ensure the processing yield.

[0007] An automated display panel spray processing system includes a processing chamber and:

[0008] An inkjet assembly, wherein the inkjet assembly comprises an inkjet moving assembly and an electro-atomizing nozzle module, wherein the electro-atomizing nozzle module is arranged at a driving end of the inkjet moving assembly, and the inkjet moving assembly drives the electro-atomizing nozzle module to move in a horizontal plane;

[0009] A conveying assembly, wherein the conveying assembly comprises a carrying platform and a conveying driving member, wherein the carrying platform is used to carry the substrate, and the conveying driving member is drivingly connected to the carrying platform to drive the carrying platform to move in the printing direction;

[0010] A mask assembly, wherein the mask assembly is located on the movement path of the carrier, and the mask assembly comprises a mounting frame and a mask plate, wherein the mask plate is mounted on the mounting frame; wherein,

[0011] The substrate moves with the carrier platform to the position directly below the mask plate, and the electro-atomization nozzle module performs electro-atomization printing on the substrate above the mask plate.

[0012] In some embodiments, the mask assembly further comprises:

[0013] A mounting frame, the mounting frame being mounted on the mounting frame;

[0014] A plurality of magnetic members are embedded in the bottom edge of the installation frame and / or the top edge of the mask plate, and the mask plate is magnetically adsorbed on the bottom surface of the installation frame.

[0015] In some embodiments, the mask assembly further includes a lifting assembly, and the lifting assembly includes:

[0016] A lifting frame, the lifting frame is lifted and slidably arranged on the mounting frame, and the mounting frame is connected to the lifting frame;

[0017] A lifting linear module is installed on the mounting frame, and the lifting linear module is drivingly connected to the lifting frame to drive the lifting frame and the mounting frame to move up and down.

[0018] In some embodiments, the mask assembly also includes a horizontal adjustment assembly, which includes a plurality of push members, and the plurality of push members are vertically inserted into the lifting frame, and the push top ends of the plurality of push members respectively support a plurality of corners of the mounting frame, and the mounting frame and the lifting frame are fastened by bolts.

[0019] The automated display panel spray processing system also includes a deflection correction component, through which the support platform is mounted on the conveying end of the conveying drive component, and the deflection correction component is used to drive the support platform to move so that the substrate on the support platform is arranged opposite to the mask plate.

[0020] In some embodiments, the deviation correction assembly includes a rotating table, which is installed at the conveying end of the conveying drive member, and the supporting platform is installed at the rotating end of the rotating table. The rotating table drives the supporting platform to rotate in a horizontal plane to change the length direction of the substrate on the supporting platform.

[0021] In some embodiments, the correction assembly also includes a transverse linear module, which is installed at the rotating end of the rotating table, and the supporting platform is installed at the driving end of the transverse linear module. The transverse linear module drives the supporting platform and the substrate to move perpendicular to the printing direction.

[0022] In some embodiments, the correction component also includes a visual detection component, which is installed at the driving end of the inkjet moving component. The visual detection component is moved by the inkjet moving component, and the visual detection component is used to capture the marking points on the mask plate and the substrate to determine the positions of the mask plate and the substrate, and the position of the substrate is adjusted according to the position of the mask plate.

[0023] In some embodiments, the automated display panel spray processing system also includes a cleaning component, which is installed at the conveying end of the conveying drive, and the carrier platform and the cleaning component are arranged at intervals in the printing direction, and the cleaning component is suitable for moving to directly below the mask plate, and the cleaning component is used to wipe the mask plate.

[0024] In some embodiments, the inkjet moving assembly includes:

[0025] A support seat, the support seat is installed on the inner bottom of the processing chamber;

[0026] An inkjet frame, the inkjet frame is slidably disposed on the support seat along the printing direction, and the electro-atomization nozzle module is slidably disposed on the inkjet frame perpendicular to the printing direction;

[0027] A first linear module, which is mounted on the inkjet frame and drives the electro-atomization nozzle module to move perpendicularly to the printing direction;

[0028] The second linear module is installed on the support seat and drives the inkjet frame and the electro-atomization nozzle module to move in the printing direction.

[0029] The beneficial effects of the technical solution provided by this application include:

[0030] The embodiment of the present application provides an automated display panel spray processing system. During the printing process, the substrate is loaded onto the carrier and transported to the bottom of the mask plate. Then, the electrospray printing is performed on the substrate using the electrospray nozzle module. During the printing process, the inkjet moving assembly drives the electrospray nozzle module to move in the horizontal plane to ensure that the substrate is completely printed. After the functional liquid is sprayed out, the functional liquid passes through the through hole on the mask plate and adheres to the substrate. By designing the size and position of the through hole on the mask plate, the functional liquid can be printed at the required position of the substrate without printing all the pixel grids of the substrate one by one. Not only is the attachment position of the functional liquid on the substrate not prone to deviation and the situation where some pixel grids are not easily missed, but also, there is no need to print pixel grids one by one, which improves the processing efficiency of the substrate.

[0031] In addition, during printing, the electro-atomization nozzle module moves and scans above the mask plate, which ensures that the sprayed functional liquid covers the entire mask plate and is not prone to missing. On the other hand, the mask plate and the substrate are both in a stationary state, ensuring that the functional liquid that falls on the substrate and the mask plate is not easy to shake at will, so that the functional liquid on the surface of the mask plate is not easy to slide onto the substrate, and the functional liquid attached to the substrate is not easy to shift its position, thereby ensuring the thickness and position of the functional liquid printed at various places on the substrate, thereby ensuring the quality of substrate printing processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 A schematic diagram of an automated display panel spray processing system provided in an embodiment of the present application;

[0034] Figure 2 A schematic diagram of another perspective of the automated display panel spray processing system provided in an embodiment of the present application;

[0035] Figure 3 A schematic diagram of a conveying assembly and a mask assembly provided in an embodiment of the present application;

[0036] Figure 4 A schematic diagram of a mask assembly provided in an embodiment of the present application;

[0037] Figure 5 A schematic diagram of a mask plate and a mounting frame provided in an embodiment of the present application;

[0038] Figure 6A schematic diagram of a cleaning assembly and a carrier platform provided in an embodiment of the present application.

[0039] In the figure: 1. inkjet assembly; 11. electro-atomizing nozzle module; 12. inkjet moving assembly; 121. support seat; 122. inkjet frame; 123. first linear module; 124. second linear module; 125. height linear module; 2. conveying assembly; 21. support platform; 22. conveying drive member; 22a. conveying plate; 3. mask assembly; 31. mask plate; 32. mounting frame; 33. mounting frame; 34. magnetic member; 35. lifting assembly; 351. lifting frame; 352. lifting linear module; 36. horizontal adjustment assembly; 4. deviation correction assembly; 41. rotating table; 42. transverse linear module; 43. visual detection member; 5. cleaning assembly. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution 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 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 ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0041] The embodiment of the present application provides an automated display panel spray processing system, which covers the surface of the substrate with a mask plate, and uses an electro-atomization nozzle module to spray a functional liquid on the mask plate to arrange the functional liquid at the corresponding position of the substrate, without printing all the pixel grids of the substrate one by one. Not only is the attachment position of the functional liquid on the substrate not prone to deviation, and some pixel grids are not prone to be missed, but the processing efficiency of the substrate is improved. The present application solves the technical problem that in the related art, the functional liquid is directly printed on the substrate corresponding to the pixel grid of the substrate, which is prone to deviation in the position of the functional liquid landing point and missed pixel grids, affecting the display performance of the formed display device, and it is difficult to ensure the processing yield.

[0042] Reference Figure 1 and Figure 2 , an automated display panel spray processing system, including a processing chamber (only the base portion of the processing chamber is shown in the figure) and an inkjet assembly 1, a conveying assembly 2 and a mask assembly 3 arranged in the processing chamber. The conveying assembly 2 is used to carry a substrate and convey the substrate to the mask assembly 3, and the inkjet assembly 1 cooperates with the mask assembly 3 to spray print the substrate to attach a functional liquid to the corresponding position of the substrate. Processing in the processing chamber can control the printing environment to avoid partial oxidation of the functional liquid by water and oxygen in the external environment, thereby ensuring the printing quality; in addition, the functional liquid is not easy to evaporate to the external environment.

[0043] Reference Figure 1 and Figure 2 , wherein the inkjet assembly 1 includes an inkjet moving assembly 12 and an electro-atomizing nozzle module 11. The electro-atomizing nozzle module 11 is disposed at the driving end of the inkjet moving assembly 12, and the inkjet moving assembly 12 drives the electro-atomizing nozzle module 11 to move in a horizontal plane. Specifically, the electro-atomizing nozzle module 11 is driven to scan in the printing direction and perpendicular to the printing direction to ensure that the spraying range of the electro-atomizing nozzle module 11 can cover the substrate.

[0044] Specifically, the electro-atomizing nozzle module 11 includes a plurality of electro-atomizing nozzles arranged perpendicular to the printing direction, and the electro-atomizing nozzles are spliced ​​on the nozzle seat. By splicing a plurality of electro-atomizing nozzles, the unit printing area of ​​the electro-atomizing nozzle module 11 is increased, thereby improving the printing efficiency. The printing direction is the direction in which the conveying component 2 conveys the substrate.

[0045] Specifically, the electroatomizing nozzle uses an electric field as the driving force. Under the action of the electric field, the functional liquid is "pulled" out by the electric field. The viscosity of the functional liquid can reach 10,000 cp. Using the electric field driving force, the charge accumulates and explodes into small particles, which fall vertically under the traction of the electric field force to improve the printing quality.

[0046] With this arrangement, the electro-atomizing nozzle module 11 is used to print on the substrate, thereby ensuring printing uniformity. The sprayed functional liquid is more likely to pass through the mask plate 31 of the mask assembly 3 and fall onto the substrate, thereby improving the printing processing quality of the substrate.

[0047] Reference Figure 1 and Figure 2 , wherein the inkjet moving component 12 includes a support seat 121, an inkjet frame 122, a first linear module 123 and a second linear module 124.

[0048] Reference Figure 1 and Figure 2 Specifically, the support seat 121 is installed on the inner bottom of the processing chamber, and the inkjet frame 122 is arranged on the support seat 121, and there is a height difference between the inkjet frame 122 and the inner bottom of the processing chamber. The inkjet frame 122 is slidably arranged on the support seat 121 along the printing direction, and the electro-atomization nozzle module 11 is slidably arranged on the inkjet frame 122 perpendicular to the printing direction. The electro-atomization nozzle module 11 realizes movement in the printing direction as the inkjet frame 122 slides on the support seat 121.

[0049] Reference Figure 1 and Figure 2Specifically, the first linear module 123 is installed on the inkjet frame 122, and drives the electro-atomization nozzle module 11 to move perpendicular to the printing direction. The second linear module 124 is installed on the support seat 121, and drives the inkjet frame 122 and the electro-atomization nozzle module 11 to move in the printing direction. That is, under the action of the first linear module 123 and the second linear module 124, the scanning movement of the electro-atomization nozzle module 11 on the horizontal plane can be realized. That is, the functional liquid sprayed by the electro-atomization nozzle module 11 can cover the entire substrate. In this embodiment, the first linear module 123 and the second linear module 124 both include a linear motor or a screw mechanism.

[0050] Reference Figure 1 and Figure 2 Furthermore, the inkjet moving assembly 12 also includes a height linear module 125, which is installed at the driving end of the first linear module 123, and the first linear module 123 drives the height linear module 125 and the electro-atomizing nozzle module 11 to move in a direction perpendicular to the printing direction. The height linear module 125 is connected to the electro-atomizing nozzle module 11 to adjust the height of the electro-atomizing nozzle module 11, thereby adjusting the distance between the electro-atomizing nozzle module 11 and the substrate, and changing the printing height.

[0051] By configuring in this way, the printing height between the electro-atomization nozzle module 11 and the substrate is adjusted by changing the height of the electro-atomization nozzle module 11 to meet different printing requirements.

[0052] Reference Figure 2 and Figure 3 , wherein the conveying assembly 2 includes a carrier 21 and a conveying drive 22, the conveying drive 22 is mounted on the inner bottom surface of the processing chamber, the carrier 21 is mounted on the conveying end of the conveying drive 22, and the conveying drive 22 drives the carrier 21 to move in the printing direction. The carrier 21 is used to carry the substrate, and the substrate moves in the printing direction with the carrier 21. In this embodiment, the conveying drive 22 includes a linear motor or a screw mechanism, and the conveying end of the conveying drive 22 includes a conveying plate 22a, and the carrier 21 is mounted on the conveying plate 22a.

[0053] Reference Figure 2 and Figure 3 Specifically, the top surface height of the carrier 21 is lower than the height of the electro-atomizing nozzle module 11. After the carrier 21 is driven to the processing position, the inkjet moving component 12 drives the electro-atomizing nozzle module 11 to scan and print the substrate.

[0054] Furthermore, a plurality of adsorption holes are arranged on the top surface of the carrying platform 21 , and the substrate is fixed on the carrying platform 21 in the form of negative pressure to limit the movement of the substrate relative to the carrying platform 21 .

[0055] Reference Figure 2-Figure 4, wherein the mask assembly 3 is located on the movement path of the carrier 21, that is, when the carrier 21 moves in the printing direction, it passes through the mask assembly 3. The mask assembly 3 includes a mounting frame 32 and a mask plate 31. The mounting frame 32 is fixed to the inner bottom surface of the processing chamber, and the mask plate 31 is mounted on the mounting frame 32. The carrier 21 can carry the substrate and move to the bottom of the mask plate 31.

[0056] The printing process includes loading the substrate onto the carrier 21, and the carrier 21 carries the substrate to the mask assembly 3, and the substrate and the mask plate 31 are arranged vertically opposite each other. Then the inkjet moving assembly 12 drives the electro-atomizing nozzle module 11 to move above the mask plate 31, and adjusts the height of the electro-atomizing nozzle module 11. The electro-atomizing nozzle module 11 sprays the functional liquid and is driven to scan above the mask plate 31 to ensure that the substrate is completely printed. After the functional liquid is sprayed out, the functional liquid passes through the through hole on the mask plate 31 and adheres to the substrate. By designing the size and position of the through hole on the mask plate 31, the functional liquid can be printed at the required position of the substrate, without printing all the pixel grids of the substrate one by one. Not only is it not easy for the attachment position of the functional liquid on the substrate to deviate, and it is not easy for some pixel grids to be missed, but also, it is not necessary to print pixel grids one by one, which improves the processing efficiency of the substrate.

[0057] In addition, during printing, the electro-atomizing nozzle module 11 moves and scans above the mask plate 31, which ensures that the sprayed functional liquid covers the entire mask plate 31 and is not prone to missing. On the other hand, the mask plate 31 and the substrate are both in a stationary state, ensuring that the functional liquid that falls on the substrate and the mask plate 31 is not easy to shake at will, so that the functional liquid on the surface of the mask plate 31 is not easy to slide onto the substrate, and the functional liquid attached to the substrate is not easy to shift its position, thereby ensuring the thickness and position of the functional liquid printed at various places on the substrate, thereby ensuring the quality of substrate printing processing.

[0058] It should be noted that the through holes with patterned patterns on the mask plate 31 can be opened on the mask plate 31 according to the positions of the pixel grids on the substrate. During printing, the positions of the substrate corresponding to the through holes on the mask plate 31 are not blocked by the mask plate 31, and the functional liquid is attached to this part to achieve printing at the designated position on the substrate.

[0059] Reference Figure 3-Figure 5 , wherein the mask assembly 3 also includes a mounting frame 33 and a plurality of magnetic parts 34, the mounting frame 33 is mounted on the top of the mounting frame 32, and the mask plate 31 is adsorbed on the bottom of the mounting frame 33 through the magnetic parts 34, and the edge of the mask plate 31 is adsorbed and connected to the mounting frame 33, and the mounting block does not block the middle of the mask plate 31.

[0060] In this arrangement, the mask plate 31 is connected to the mounting frame 32 through the mounting frame 33. When using mask plates 31 of different sizes, the mounting frames 33 of different sizes can be replaced accordingly to ensure that the edge of the mask plate 31 can be fixed, thereby improving the applicability of the printing process. In addition, the mask plate 31 is fixed to the bottom surface of the mounting frame 33. When the substrate is located below the mask plate 31, there is no other structural interference between the mask plate 31 and the substrate, so the distance between the substrate and the mask plate 31 can be reduced, the placement requirements of the mask plate 31 and the substrate can be protected, and the printing quality can be guaranteed.

[0061] It should be noted that when the distance between the mask plate 31 and the substrate is too large, after the functional liquid passes through the mask plate 31, the position and area where the functional liquid falls on the substrate are difficult to control, and the uniformity of the functional liquid falling on the substrate is poor. Therefore, when the distance between the mask plate 31 and the substrate is too large, the printing quality on the substrate is poor.

[0062] Reference Figure 3-Figure 5 Specifically, a plurality of magnetic members 34 are embedded in the bottom edge of the mounting frame 33 and / or the top edge of the mask plate 31, and the mask plate 31 is magnetically adsorbed to the bottom surface of the mounting frame 33. In this embodiment, the mask plate 31 is made of magnetic material, and a plurality of magnetic members 34 are embedded in the bottom edge of the mounting frame 33. In this embodiment, the magnetic member 34 includes a magnet.

[0063] Reference Figure 3-Figure 5 , wherein the mask assembly 3 further includes a lifting assembly 35, and the lifting assembly 35 includes a lifting frame 351 and a lifting linear module 352. The lifting frame 351 is lifted and slidably arranged on the mounting frame 32 through a guide rail assembly, and the mounting frame 33 is connected to the top of the lifting frame 351 to move up and down with the lifting frame 351. The lifting linear module 352 is installed on the mounting frame 32, and the lifting linear module 352 is drivingly connected to the lifting frame 351 to drive the lifting frame 351 and the mounting frame 33 to move up and down. In this embodiment, the lifting linear module 352 includes a linear motor, a screw mechanism or a cylinder.

[0064] In this arrangement, when the substrate moves to the bottom of the mask plate 31, the mounting frame 33 and the mask plate 31 rise to prevent the substrate from hitting the mask plate 31. After the substrate is located under the mask plate 31, the lifting assembly 35 drives the mask plate 31 to descend, fully reducing the distance between the substrate and the mask plate 31 to ensure the quality of the printing process. In addition, the distance between the mask plate 31 and the substrate can also be adjusted according to the printing parameters to expand the processing application range.

[0065] Reference Figure 3-Figure 5 Furthermore, the mask assembly 3 also includes a horizontal adjustment assembly 36, and the horizontal adjustment assembly 36 is used to adjust the mask plate 31 to a horizontal state.

[0066] The horizontal adjustment assembly 36 includes a plurality of push members, which are vertically disposed on the lifting frame 351 , and the push ends of the plurality of push members respectively support the corners of the mounting frame 33 , and the mounting frame 33 and the lifting frame 351 are fastened by bolts.

[0067] Specifically, the push-up member includes a micrometer head or a screw rod, and the installation frame 33 is pushed by adjusting the length of the push-up end extending above the lifting frame 351. According to the tilt direction and tilt angle of the mask plate 31 relative to the horizontal plane, the height of the corresponding corner of the installation frame 33 is changed by operating the push-up member at the corner of the installation frame 33, so that the mask plate 31 on the installation frame 33 is adjusted to be horizontal.

[0068] With this arrangement, by adjusting the mask plate 31 to a horizontal state, the mask plate 31 is ensured to be parallel to the substrate, and the spacing between the substrate and the mask plate 31 is more uniform. During printing, the landing point of the functional liquid that passes through the mask plate 31 and falls on the substrate is more precise, and the functional liquid at various locations on the substrate is more uniform, thereby improving the printing process quality.

[0069] Reference Figure 2 and Figure 3 The automated display panel spray processing system further includes a deflection correction component 4, through which the carrier 21 is mounted on the conveying end of the conveying drive 22, and the deflection correction component 4 is used to drive the carrier 21 to move so that the substrate on the carrier 21 is arranged opposite to the mask plate 31.

[0070] In this arrangement, the position of the carrier 21 is adjusted by the deflection correction component 4 to ensure that after the substrate is sent under the mask plate 31, the substrate and the mask plate 31 are aligned, that is, the pixel grid positions on the substrate are aligned one by one with the through hole positions on the mask plate 31, thereby ensuring printing accuracy.

[0071] Reference Figure 2 and Figure 3 Specifically, the deflection correction assembly 4 includes a rotating table 41, which is mounted on the conveying end of the conveying drive 22. The carrier 21 is mounted on the rotating end of the rotating table 41, and the rotating table 41 drives the carrier 21 to rotate in a horizontal plane to change the length direction of the substrate on the carrier 21.

[0072] This arrangement changes the length and width of the substrate by driving the substrate to rotate, so that the length and width of the substrate are adjusted to be consistent with the length and width of the mask plate 31, respectively, which facilitates the subsequent alignment of the substrate and the mask plate 31.

[0073] Reference Figure 2 and Figure 3Specifically, the deviation correction assembly 4 further includes a lateral linear module 42, which is mounted on the rotating end of the rotating table 41. The carrier 21 is mounted on the driving end of the lateral linear module 42, and the lateral linear module 42 drives the carrier 21 and the substrate to move perpendicularly to the printing direction. In this embodiment, the lateral linear module 42 includes a linear motor or a screw mechanism.

[0074] In this arrangement, the lateral linear module 42 drives the carrier 21 to move in a direction perpendicular to the printing direction to adjust the position of the substrate on the carrier 21 in the direction perpendicular to the printing direction; the conveying drive 22 drives the carrier 21 to move in the printing direction, and the conveying drive 22 conveys the carrier 21 in the printing direction to adjust the position of the substrate on the carrier 21 in the printing direction. Therefore, the position adjustment of the substrate can be achieved, so that the substrate and the mask plate 31 are vertically aligned, and the through holes on the mask plate 31 are ensured to be one-to-one aligned with the pixel grids on the substrate, thereby ensuring the processing quality of the substrate.

[0075] Reference Figure 2 and Figure 3 Furthermore, the deviation correction component 4 further includes a visual detection component 43, which is mounted on the driving end of the inkjet moving component 12. In this embodiment, the visual detection component 43 is mounted on the outside of the nozzle seat, and the visual detection component 43 is driven by the inkjet moving component 12 to move, that is, it can be driven to scan in the horizontal plane. In this embodiment, the visual detection component 43 includes one or more of a high-power camera and a wide-angle camera.

[0076] The visual inspection component 43 is used to capture the marking points on the mask plate 31 and the substrate to determine the positions of the mask plate 31 and the substrate, and the position of the substrate is adjusted according to the position of the mask plate 31 .

[0077] During the printing process, the substrate is placed on the carrier 21. After the positions of the substrate and the mask plate 31 are determined by the visual imaging component, the substrate is sent to the bottom of the mask plate 31, and the substrate is corrected synchronously when the substrate is transported, which saves the correction time and improves the processing efficiency.

[0078] Reference Figure 2 and Figure 6 Optionally, the automated display panel spray processing system further includes a cleaning assembly 5, which is used to clean the bottom surface of the mask plate 31. The cleaning assembly 5 is mounted on the conveying end of the conveying drive 22. In this embodiment, the cleaning assembly 5 is mounted on the conveying plate 22a of the conveying drive 22. The carrier 21 and the cleaning assembly 5 are arranged at intervals in the printing direction, and the cleaning assembly 5 and the carrier 21 are adapted to be successively transferred by the conveying drive 22 to the position directly below the mask plate 31.

[0079] The cleaning assembly 5 includes a reel-type cleaning form, which uses a reel to drive the cleaning cloth to roll up and wipe the bottom surface of the cleaning mask plate 31. When wiping the mask plate 31, since the top surface of the mask plate 31 is adsorbed on the mounting frame 33, wiping the bottom surface of the mask plate 31 is not likely to cause the mask plate 31 to fall off or shift.

[0080] The printing process includes: after the substrate is loaded onto the carrier 21, the conveying drive 22 drives the carrier 21 and the cleaning component 5 to move in the printing direction. After the cleaning component 5 is placed under the mask plate 31, the mask plate 31 descends, and the cleaning component 5 wipes the bottom of the mask plate 31. At the same time, the visual detection component 43 scans above the substrate to determine the position of the substrate. Therefore, when the mask plate 31 is cleaned, it does not affect the normal processing of the substrate, does not occupy the processing time, and improves the processing efficiency.

[0081] In addition, after the mask plate 31 is cleaned, the position of the mask plate 31 is determined by the visual detection component 43, and the conveying drive component 22 further drives the carrier 21 and the cleaning component 5 to move forward in the printing direction. At the same time, the position of the substrate is adjusted according to the position of the mask plate 31 and the position of the substrate, and the substrate is ensured to be sent directly under the mask plate 31. Then, the mask plate 31 is raised and lowered to adjust the height difference between the mask plate 31 and the substrate to the process height, and then the electro-atomization nozzle module 11 is driven to perform printing processing.

[0082] After the substrate processing is completed, the carrier 21 and the cleaning assembly 5 retreat in the first direction, and the cleaning assembly 5 retreats to the bottom of the mask plate 31 to clean the mask plate 31, and at the same time removes the substrate on the carrier 21 and loads the next substrate onto the carrier 21. With this arrangement, the processing rhythm of the substrate is better, the processing is smoother, and the processing efficiency is higher.

[0083] The embodiment of the present application provides an automated display panel spray processing system. During the printing process, the substrate is loaded onto the carrier 21 and transported to the bottom of the mask plate 31. Then, the electrospray printing is performed on the substrate using the electrospray nozzle module 11. During the printing process, the inkjet moving component 12 drives the electrospray nozzle module 11 to move in the horizontal plane to ensure that the substrate is completely printed. After the functional liquid is sprayed out, the functional liquid passes through the through hole on the mask plate 31 and adheres to the substrate. By designing the size and position of the through hole on the mask plate 31, the functional liquid can be printed at the required position of the substrate without printing all the pixel grids of the substrate one by one. Not only is it not easy for the attachment position of the functional liquid on the substrate to deviate and some pixel grids to be missed, but also it is not necessary to print pixel grids one by one, thereby improving the processing efficiency of the substrate.

[0084] In addition, during printing, the electro-atomizing nozzle module 11 moves and scans above the mask plate 31, which ensures that the sprayed functional liquid covers the entire mask plate 31 and is not prone to missing. On the other hand, the mask plate 31 and the substrate are both in a stationary state, ensuring that the functional liquid that falls on the substrate and the mask plate 31 is not easy to shake at will, so that the functional liquid on the surface of the mask plate 31 is not easy to slide onto the substrate, and the functional liquid attached to the substrate is not easy to shift its position, thereby ensuring the thickness and position of the functional liquid printed at various places on the substrate, thereby ensuring the quality of substrate printing processing.

[0085] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0086] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0087] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An automated display panel spray processing system, characterized in that: It includes a processing chamber and: An inkjet assembly, wherein the inkjet assembly comprises an inkjet moving assembly and an electro-atomizing nozzle module, wherein the electro-atomizing nozzle module is arranged at a driving end of the inkjet moving assembly, and the inkjet moving assembly drives the electro-atomizing nozzle module to move in a horizontal plane; A conveying assembly, wherein the conveying assembly comprises a carrying platform and a conveying driving member, wherein the carrying platform is used to carry the substrate, and the conveying driving member is drivingly connected to the carrying platform to drive the carrying platform to move in the printing direction; A mask assembly, wherein the mask assembly is located on the movement path of the carrier, and the mask assembly comprises a mounting frame and a mask plate, wherein the mask plate is mounted on the mounting frame; wherein, The substrate moves with the carrier platform to the position directly below the mask plate, and the electro-atomization nozzle module performs electro-atomization printing on the substrate above the mask plate.

2. The automatic display panel spray processing system according to claim 1, characterized in that: The mask assembly further comprises: A mounting frame, the mounting frame being mounted on the mounting frame; A plurality of magnetic members are embedded in the bottom edge of the installation frame and / or the top edge of the mask plate, and the mask plate is magnetically adsorbed on the bottom surface of the installation frame.

3. The automated display panel spray processing system according to claim 2, characterized in that: The mask assembly further includes a lifting assembly, and the lifting assembly includes: A lifting frame, the lifting frame is lifted and slidably arranged on the mounting frame, and the mounting frame is connected to the lifting frame; A lifting linear module is installed on the mounting frame, and the lifting linear module is drivingly connected to the lifting frame to drive the lifting frame and the mounting frame to move up and down.

4. The automated display panel spray processing system according to claim 3, characterized in that: The mask assembly also includes a horizontal adjustment assembly, which includes a plurality of push members, which are vertically inserted into the lifting frame, and the push top ends of the plurality of push members respectively support a plurality of corners of the installation frame, and the installation frame and the lifting frame are locked by bolts.

5. The automated display panel spray processing system according to claim 2, characterized in that: It also includes a deflection correction component, through which the carrier platform is installed on the conveying end of the conveying drive component, and the deflection correction component is used to drive the carrier platform to move so that the substrate on the carrier platform is arranged opposite to the mask plate.

6. The automated display panel spray processing system according to claim 5, characterized in that: The deflection correction assembly includes a rotating table, which is installed at the conveying end of the conveying drive member, and the supporting platform is installed at the rotating end of the rotating table. The rotating table drives the supporting platform to rotate in a horizontal plane to change the length direction of the substrate on the supporting platform.

7. The automated display panel spray processing system according to claim 6, characterized in that: The correction assembly also includes a transverse linear module, which is installed at the rotating end of the rotating table, and the support platform is installed at the driving end of the transverse linear module. The transverse linear module drives the support platform and the substrate to move perpendicular to the printing direction.

8. The automated display panel spray processing system according to claim 5, characterized in that: The correction component also includes a visual detection component, which is installed at the driving end of the inkjet moving component. The visual detection component is driven to move by the inkjet moving component. The visual detection component is used to capture the marking points on the mask plate and the substrate to determine the positions of the mask plate and the substrate, and the position of the substrate is adjusted according to the position of the mask plate.

9. The automated display panel spray processing system according to claim 1, characterized in that: It also includes a cleaning component, which is installed at the conveying end of the conveying drive, and the carrier platform and the cleaning component are arranged at intervals in the printing direction. The cleaning component is suitable for moving to just below the mask plate, and the cleaning component is used to wipe the mask plate.

10. The automated display panel spray processing system according to claim 1, characterized in that: The inkjet moving assembly comprises: A support seat, the support seat is installed on the inner bottom of the processing chamber; An inkjet frame, the inkjet frame is slidably disposed on the support seat along the printing direction, and the electro-atomization nozzle module is slidably disposed on the inkjet frame perpendicular to the printing direction; A first linear module, which is mounted on the inkjet frame and drives the electro-atomization nozzle module to move perpendicularly to the printing direction; The second linear module is installed on the support seat and drives the inkjet frame and the electro-atomization nozzle module to move in the printing direction.

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