CN114367423B - Glue pouring method for lamp seams of display module - Google Patents
Glue pouring method for lamp seams of display module Download PDFInfo
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- CN114367423B CN114367423B CN202210049330.4A CN202210049330A CN114367423B CN 114367423 B CN114367423 B CN 114367423B CN 202210049330 A CN202210049330 A CN 202210049330A CN 114367423 B CN114367423 B CN 114367423B
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- glue
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
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Abstract
The application discloses a glue pouring method for a display module light gap, and belongs to the technical field of display. Which comprises the following steps: providing a display module to be glue-poured, and coating photosensitive glue on the lamp surface of the display module to be glue-poured to obtain a first pre-glue-pouring display module; simultaneously curing the photosensitive glue in all transverse lamp seams of the first pre-glue-pouring display module and simultaneously curing the photosensitive glue in all longitudinal lamp seams of the first pre-glue-pouring display module by a preset shielding irradiation mode to obtain a second pre-glue-pouring display module; and presetting and clearing the lamp surface of the second pre-glue-pouring display module to obtain the target glue-pouring display module. According to the technical scheme, the technical problems that the operation of the existing process mode for filling the corresponding glue in the display screen lamp seam is inconvenient and the efficiency is low can be effectively solved.
Description
Technical Field
The application relates to the technical field of display, in particular to a glue pouring method for a display module lamp seam.
Background
With the progress of technology and the market demand, the LED display screen is developing towards smaller and smaller dot spacing, so as to display finer and finer pictures. In order to improve the contrast of the COB display screen, black glue is often required to be filled in the gaps between the pixels to shield the metal pads and eliminate the light reflection. In addition, environmental moisture is always a significant cause of failure of the LED lamp bead, and a corresponding glue is also required to be filled in the gaps between the pixels to improve the moisture resistance. The current mainstream process method is to spray corresponding glue into the gaps between the pixels row by a high-precision glue dispensing device to complete the corresponding glue filling operation, but in the actual operation process, the process method is found to be very inconvenient to operate and low in efficiency.
Disclosure of Invention
The application mainly aims to provide a glue pouring method for a display module light seam, and aims to solve the technical problems that the operation of the existing process mode for filling the display screen light seam with corresponding glue is inconvenient and the efficiency is low.
In order to achieve the purpose, the application provides a display module light gap glue pouring method which comprises the following steps: providing a display module to be glue-poured, and coating photosensitive glue on the lamp surface of the display module to be glue-poured to obtain a first pre-glue-pouring display module; simultaneously curing the photosensitive glue in all transverse lamp seams of the first pre-glue-pouring display module and simultaneously curing the photosensitive glue in all longitudinal lamp seams of the first pre-glue-pouring display module by a preset shielding and irradiation mode to obtain a second pre-glue-pouring display module; and presetting and clearing the lamp surface of the second pre-glue-pouring display module to obtain the target glue-pouring display module.
Optionally, the photosensitive glue is a UV-curing glue.
Optionally, the photosensitive glue is black glue or transparent glue.
Optionally, the step of coating photosensitive glue on the lamp face of the display module to be glue-filled to obtain a first pre-glue-filled display module specifically includes: and uniformly coating the photosensitive glue on the lamp surface of the display module to be glue-filled in a spraying mode or a brushing mode to obtain the first pre-glue-filling display module.
Optionally, through presetting sheltering from the irradiation mode, make photosensitive glue in all horizontal light seams of first encapsulating display module group in advance solidifies simultaneously and makes photosensitive glue in all vertical light seams of first encapsulating display module group in advance solidifies simultaneously, the step that obtains the second encapsulating display module group in advance includes: providing a shadow mask with a plurality of long holes, and covering the shadow mask above the lamp surface of the first pre-glue-pouring display module to shield the lamp surface and expose all transverse lamp seams or all longitudinal lamp seams on the lamp surface; providing a preset light source, and enabling the preset light source to vertically irradiate the upper surface of the shadow mask so as to irradiate all the transverse lamp seams or all the longitudinal lamp seams through the plurality of long holes, so that the photosensitive glue in all the transverse lamp seams is cured at the same time or the photosensitive glue in all the longitudinal lamp seams is cured at the same time; adjusting the placing angle between the shadow mask and the first pre-glue-pouring display module to enable the shadow mask to expose all the longitudinal lamp seams or all the transverse lamp seams while shielding the lamp surface; and enabling the preset light source to vertically irradiate the upper surface of the shadow mask again so as to irradiate all the longitudinal lamp seams or all the transverse lamp seams through the plurality of long holes, and simultaneously curing the photosensitive glue in all the longitudinal lamp seams or simultaneously curing the photosensitive glue in all the transverse lamp seams to obtain the second pre-glue-pouring display module.
Optionally, the preset light source is a UV ultraviolet lamp.
Optionally, the adjusting the placing angle between the shadow mask and the first pre-glue-pouring display module so that all the longitudinal light slits or all the transverse light slits are exposed while the shadow mask shields the light surface includes: and rotating the shadow mask by 90 degrees clockwise or anticlockwise so that all the longitudinal lamp slits or all the transverse lamp slits are exposed while the shadow mask shields the lamp surface.
Optionally, the step of adjusting a placement angle between the shadow mask and the first pre-glue-pouring display module so that the shadow mask covers the lamp surface and exposes all the longitudinal lamp slits or all the transverse lamp slits includes: and rotating the first pre-glue-pouring display module by 90 degrees clockwise or anticlockwise to expose all the longitudinal lamp seams or all the transverse lamp seams while the shadow mask shields the lamp surface.
Optionally, the step of presetting the lamp surface of the second pre-glue-pouring display module to remove the second pre-glue-pouring display module to obtain the target glue-pouring display module includes: and placing the second pre-glue-pouring display module in a preset organic solvent to remove uncured photosensitive glue on the lamp beads on the lamp surface and expose the corresponding lamp beads to obtain the target glue-pouring display module.
Optionally, the preset organic solvent includes any one of methanol, ethanol, and acetone.
The application provides a display module group light seam encapsulating method, it coats photosensitive glue on treating the lamp face of encapsulating display module group, obtain first encapsulating display module group in advance after, through predetermineeing and sheltering from the mode of illumination, make photosensitive glue in all horizontal light seams of first encapsulating display module group in advance solidify simultaneously and make photosensitive glue in all vertical light seams of first encapsulating display module group in advance solidify simultaneously, obtain the second encapsulating display module group in advance. And finally, the lamp surface of the second pre-glue-pouring display module is subjected to preset clearing treatment to obtain a target glue-pouring display module, so that the glue pouring process of the lamp gap of the whole display module can be completed, and the whole glue pouring process is convenient and rapid. Therefore, the glue pouring method for the display module lamp seams can effectively solve the technical problems that the operation of the existing process mode for filling the display screen lamp seams with corresponding glue is inconvenient and the efficiency is low.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic flow chart illustrating a method for pouring glue into a module light gap according to an embodiment of the present application.
Fig. 2 is a schematic flowchart illustrating a specific process of step S120 of the method for filling glue into the light gap of the module shown in fig. 1.
Fig. 3 is a schematic view of a splitting structure of the auxiliary jig for glue filling according to the embodiment of the application.
Fig. 4 is a schematic structural view of a display module bracket of the glue filling auxiliary fixture shown in fig. 3.
Detailed Description
The following further describes embodiments of the present application with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present application, and is not intended to limit the present application. In addition, the technical features mentioned in the embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, an embodiment of the present application provides a display module light seam glue filling method, which includes the following steps:
step S110: and providing a display module to be glue-poured, and coating photosensitive glue on the lamp surface of the display module to be glue-poured to obtain a first pre-glue-pouring display module.
In particular, the photosensitive glue is preferably a UV curing glue, which can be cured rapidly under the irradiation of a UV ultraviolet lamp. According to the performance that the encapsulating display module assembly needs to promote can not, this photosensitive glue specifically can also be black glue or transparent glue, when it is black glue, except can improving the dampproofing, crashproof performance of display module assembly, still can improve the contrast of display module assembly simultaneously, eliminate the colour difference between the display module assembly. The coating process of above-mentioned photosensitive glue can be specifically through the spraying mode or brush the mode with the even coating of photosensitive glue on waiting to glue the lamp face of display module assembly, obtain first encapsulating display module assembly in advance, at this moment, on the lamp face of first encapsulating display module assembly in advance, not only all light seams are filled with this photosensitive glue, and the surface of all lamp pearls also coats this photosensitive glue.
Step S120: and simultaneously curing the photosensitive glue in all transverse lamp seams of the first pre-glue-pouring display module and the photosensitive glue in all longitudinal lamp seams of the first pre-glue-pouring display module by a preset shielding and irradiating mode to obtain a second pre-glue-pouring display module.
Specifically, after the first pre-glue-pouring display module coated with photosensitive glue on the lamp surface is obtained through the steps of the method, the photosensitive glue in all transverse lamp seams of the first pre-glue-pouring display module is simultaneously cured and the photosensitive glue in all longitudinal lamp seams of the first pre-glue-pouring display module is simultaneously cured through a preset shielding and irradiating mode, so that a second pre-glue-pouring display module is obtained, as shown in fig. 2, the specific process is as follows:
step S121: providing a shadow mask with a plurality of long holes, and covering the shadow mask above the lamp surface of the first pre-glue-pouring display module to shield the lamp surface and expose all transverse lamp seams or all longitudinal lamp seams on the lamp surface.
Step S122: and providing a preset light source, and enabling the preset light source to vertically irradiate the upper surface of the shadow mask so as to irradiate all the transverse lamp seams or all the longitudinal lamp seams through the plurality of long holes, so that the photosensitive glue in all the transverse lamp seams is cured at the same time or the photosensitive glue in all the longitudinal lamp seams is cured at the same time.
Step S123: and adjusting the placing angle between the shadow mask and the first pre-glue pouring display module to expose all longitudinal lamp seams or all transverse lamp seams while the shadow mask shields the lamp surface.
Step S124: and enabling the preset light source to vertically irradiate the upper surface of the shadow mask again to irradiate all the longitudinal lamp seams or all the transverse lamp seams through the plurality of long holes, so that the photosensitive glue in all the longitudinal lamp seams is cured simultaneously or the photosensitive glue in all the transverse lamp seams is cured simultaneously, and obtaining a second pre-glue-pouring display module.
As shown in fig. 3, an auxiliary glue-pouring jig 100 may be provided, where the auxiliary glue-pouring jig 100 includes a positioning base 110, a display module support frame 120 and a shadow mask 130, where the display module support frame 120 is disposed on the positioning base 110, and a concave receiving groove 121 is disposed on a side surface of the display module support frame 120 away from the positioning base 110, and may be used to directly place the above steps to obtain a first pre-glue-pouring display module, or may be used to obtain the first pre-glue-pouring display module by uniformly coating photosensitive glue on a lamp surface of the display module to be glue-poured through a spraying or brushing method after the glue-pouring display module is placed in the receiving groove 121. The shadow mask 130 is detachably fixed on the positioning base 110 to movably cover the first glue-pouring display module in the accommodating groove 121, and the shadow mask 130 is further provided with a plurality of long holes 131, or all transverse light seams of the first glue-pouring display module are exposed, or all longitudinal light seams of the first glue-pouring display module are exposed. The shadow mask 130 may be a metal block with a plurality of slots 131, and the plurality of slots 131 may be formed by laser or etching. When the shadow mask 130 covers the display module to be glue-poured in the accommodating groove 121, the distance between the shadow mask 130 and the display module to be glue-poured can be 0.1 mm-10 mm, preferably 0.1 mm-1 mm, so as to ensure that the shadow mask 130 is close to but not in contact with the display module to be glue-poured, and the shadow mask 130 can not press the lamp surface of the display module to be glue-poured or be stained with photosensitive glue coated on the lamp surface of the display module to be glue-poured when the shadow mask shields the lamp surface of the display module to be glue-poured. The width of the long holes 131 is smaller than the width of the transverse light seams and smaller than the width of the longitudinal light seams, so as to ensure that the plurality of long holes 131 only correspondingly expose all the transverse light seams of the display module to be glue-poured or only correspondingly expose all the longitudinal light seams of the display module to be glue-poured. In addition, in order to make the auxiliary glue filling jig 100 have better corrosion resistance and improve the service life of the display module light gap glue filling method 100, the surfaces of the positioning base 110, the display module support frame 120 and the shadow mask 130 are coated with teflon coatings (not shown), and meanwhile, the teflon coatings can be conveniently removed when glue on the display module falls on the auxiliary glue filling jig 100.
According to the steps of the method, firstly, the photosensitive glue in all the transverse lamp seams of the first pre-glue-pouring display module is cured simultaneously, and then the photosensitive glue in all the longitudinal lamp seams of the first pre-glue-pouring display module is cured simultaneously, so that the second pre-glue-pouring display module is obtained. Or the photosensitive glue in all the longitudinal light seams of the first pre-glue-pouring display module can be simultaneously cured, and then the photosensitive glue in all the transverse light seams of the first pre-glue-pouring display module can be simultaneously cured to obtain a second pre-glue-pouring display module. For example, when the photosensitive glue is UV curing glue, the predetermined light source is a UV lamp, the upper surface of the shadow mask 130 is vertically irradiated by the UV lamp, and all the transverse light seams can be irradiated through the plurality of long holes 131, so that the photosensitive glue in all the transverse light seams can be simultaneously cured. Then, the placing angle between the shadow mask 130 and the first pre-glue display module can be adjusted to expose all the longitudinal lamp seams while the shadow mask 130 shields the lamp surface. The specific adjustment process is as follows: since the shadow mask 130 is detachably fixed on the positioning base 110 (as shown in fig. 2, the specific implementation manner may be that, after the positioning holes 132 are respectively opened on the periphery of the shadow mask 130, and the positioning protrusions 113 are respectively arranged on the periphery of the positioning base 110, each positioning hole 132 is correspondingly clamped into the corresponding positioning protrusion 113, so as to achieve the detachable fixation), at this time, after the shadow mask 130 is removed, the shadow mask 130 is rotated clockwise or counterclockwise by 90 degrees, and then is fixed back on the positioning base 110, so that all the longitudinal lamp seams are exposed while the lamp surface is shielded by the shadow mask 130. For those skilled in the art, the angle adjustment can be achieved by rotating the first pre-glue display module by 90 degrees clockwise or counterclockwise, so that all the longitudinal slits are exposed while the shadow mask 130 shields the lamp surface. At this time, the connection between the display module support frame 120 accommodating the first pre-glue-pouring display module and the positioning base 110 needs to be set as a rotational connection, at this time, as shown in fig. 3 and 4, a rotational shaft 122 is convexly disposed on one side of the display module support frame 120 away from the accommodating groove 121, and a rotational slot 111 in which the rotational shaft 122 is movably clamped is disposed on the positioning base 110, so that the rotational shaft 122 rotates relative to the rotational slot 111, thereby achieving the rotational connection between the display module support frame 120 and the positioning base 110. Further, a limiting device is further disposed between one side of the display module supporting frame 120 far away from the accommodating groove 121 and the positioning base 110 to limit the maximum rotation angle of the display module supporting frame 120. The limiting device specifically comprises a limiting pin 123 and an arc-shaped limiting groove hole 112, wherein the limiting pin 123 is convexly arranged on one side, far away from the accommodating groove body 121, of the display module group supporting frame 120, the arc-shaped limiting groove hole 112 is arranged on the positioning base 110, one end, far away from the display module group supporting frame 120, of the limiting pin 123 is clamped in the arc-shaped limiting groove hole 112 to move along the extending direction of the arc-shaped limiting groove hole 112, the central angle of the arc-shaped limiting groove hole 112 is 90 degrees, namely, the maximum rotating angle is 90 degrees, and the display module group supporting frame 120 can only rotate 90 degrees at the maximum. When the angle adjustment is carried out, after the shadow mask 130 shields the lamp surface and exposes all the longitudinal lamp seams, the UV ultraviolet lamp can be used for irradiating the upper surface of the shadow mask 130 vertically again, all the longitudinal lamp seams are irradiated through the plurality of long holes, photosensitive glue in all the longitudinal lamp seams is cured simultaneously, and finally the second pre-glue-pouring display module is obtained. The specific irradiation time of the two times of irradiation of the UV ultraviolet lamp in the treatment process can be determined according to the power of the UV ultraviolet lamp and the glue material and is generally controlled within 1-600 s, so that the photosensitive glue in all the transverse lamp seams can be cured simultaneously or the photosensitive glue in all the longitudinal lamp seams can be cured simultaneously.
Step S130: and presetting and clearing the lamp surface of the second pre-glue-pouring display module to obtain the target glue-pouring display module.
Specifically, after the second pre-glue-pouring display module is obtained through the steps of the method, the lamp surface of the second pre-glue-pouring display module can be subjected to preset clearing treatment to obtain the target glue-pouring display module, and the specific process is as follows: and placing the second pre-glue-pouring display module in a preset organic solvent to remove uncured photosensitive glue on the lamp beads on the lamp surface and expose corresponding lamp beads to obtain the target glue-pouring display module. The preset organic solvent can specifically comprise any one of methanol, ethanol and acetone, the organic solvents can effectively remove uncured photosensitive glue on lamp beads of the lamp surface to obtain the target glue-filled display module, and cured photosensitive glue is filled in all lamp seams of the target glue-filled display module to effectively improve the moisture-proof and anti-collision performance of the target glue-filled display module. And then, carrying out mould pressing or other packaging processes on the obtained target glue-filled display module so as to obtain a completely packaged display module.
According to the display module light seam glue filling method in the embodiment of the application, photosensitive glue is coated on the light surface of a display module to be glue filled, after a first pre-glue-filling display module is obtained, through the preset shielding and irradiating mode, the photosensitive glue in all transverse light seams of the first pre-glue-filling display module is simultaneously cured, the photosensitive glue in all longitudinal light seams of the first pre-glue-filling display module is simultaneously cured, and a second pre-glue-filling display module is obtained. And finally, the lamp surface of the second pre-glue-pouring display module is subjected to preset clearing treatment to obtain a target glue-pouring display module, so that the glue pouring process of the lamp gap of the whole display module can be completed, and the whole glue pouring process is convenient and rapid. Therefore, the glue pouring method for the display module lamp seams can effectively solve the technical problems that the operation of the existing process mode for filling the display screen lamp seams with corresponding glue is inconvenient and the efficiency is low.
The embodiments of the present application have been described in detail with reference to the accompanying drawings, but the present application is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the application, and these embodiments are still within the scope of the application.
Claims (8)
1. A glue pouring method for a display module lamp seam is characterized by comprising the following steps:
providing a display module to be glue-poured, and coating photosensitive glue on the lamp surface of the display module to be glue-poured to obtain a first pre-glue-pouring display module;
simultaneously curing the photosensitive glue in all transverse lamp seams of the first pre-glue-pouring display module and simultaneously curing the photosensitive glue in all longitudinal lamp seams of the first pre-glue-pouring display module by a preset shielding and irradiation mode to obtain a second pre-glue-pouring display module;
performing preset clearing treatment on the lamp surface of the second pre-glue-pouring display module to obtain a target glue-poured display module;
coating photosensitive glue on the lamp surface of the display module to be glue-poured, and the step of obtaining a first pre-glue-pouring display module specifically comprises:
uniformly coating the photosensitive glue on the lamp surface of the display module to be glue-filled in a spraying mode or a brushing mode to obtain a first pre-glue-filled display module;
through predetermineeing the mode of sheltering from and shining, make photosensitive glue in all horizontal light seams of first encapsulating display module group in advance solidifies simultaneously and makes photosensitive glue in all vertical light seams of first encapsulating display module group in advance solidifies simultaneously, the step that obtains the second encapsulating display module group in advance includes:
providing a preset light source, enabling the preset light source to vertically irradiate the upper surface of the shadow mask, and irradiating all the transverse lamp seams through the plurality of long holes, so that photosensitive glue in all the transverse lamp seams is cured at the same time; enabling the preset light source to vertically irradiate the upper surface of the shadow mask again so as to irradiate all the longitudinal lamp seams through the plurality of long holes, and simultaneously curing the photosensitive glue in all the longitudinal lamp seams to obtain a second pre-glue-pouring display module;
providing a preset light source, enabling the preset light source to vertically irradiate the upper surface of the shadow mask so as to irradiate all the longitudinal lamp seams through the plurality of long holes, and enabling the photosensitive glue in all the longitudinal lamp seams to be cured simultaneously; and enabling the preset light source to vertically irradiate the upper surface of the shadow mask again so as to irradiate all the transverse lamp seams through the plurality of long holes, and simultaneously curing the photosensitive glue in all the transverse lamp seams to obtain the second pre-glue-pouring display module.
2. The method as claimed in claim 1, wherein the photosensitive glue is a UV curable glue.
3. The method according to claim 1, wherein the photosensitive glue is black glue or transparent glue.
4. The method of claim 1, wherein the predetermined light source is a UV lamp.
5. The method for pouring the glue into the lamp gaps of the display module set according to claim 1, wherein the step of adjusting the placement angle between the shadow mask and the first pre-glue-poured display module set so that the shadow mask covers the lamp surface and exposes all the longitudinal lamp gaps or all the transverse lamp gaps comprises:
and rotating the shadow mask by 90 degrees clockwise or anticlockwise so that all the longitudinal lamp slits or all the transverse lamp slits are exposed while the shadow mask shields the lamp surface.
6. The method for pouring the glue into the lamp gaps of the display module set according to claim 1, wherein the step of adjusting the placement angle between the shadow mask and the first pre-glue-poured display module set so that the shadow mask covers the lamp surface and exposes all the longitudinal lamp gaps or all the transverse lamp gaps comprises:
and rotating the first pre-glue-pouring display module by 90 degrees clockwise or anticlockwise to expose all the longitudinal lamp seams or all the transverse lamp seams while the shadow mask shields the lamp surface.
7. The method for pouring the glue into the lamp gap of the display module according to any one of claims 1 to 6, wherein the step of performing the preset removing treatment on the lamp surface of the second pre-glue-pouring display module to obtain the target glue-poured display module comprises the following steps:
and placing the second pre-glue-pouring display module in a preset organic solvent to remove uncured photosensitive glue on the lamp beads on the lamp surface and expose the corresponding lamp beads to obtain the target glue-pouring display module.
8. The method of claim 7, wherein the predetermined organic solvent includes any one of methanol, ethanol and acetone.
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| CN105093806A (en) * | 2015-08-19 | 2015-11-25 | 京东方科技集团股份有限公司 | Ultraviolet (UV) mask and exposure method thereof |
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