CN113856953A - Spraying jig device and spraying method - Google Patents
Spraying jig device and spraying method Download PDFInfo
- Publication number
- CN113856953A CN113856953A CN202111294844.8A CN202111294844A CN113856953A CN 113856953 A CN113856953 A CN 113856953A CN 202111294844 A CN202111294844 A CN 202111294844A CN 113856953 A CN113856953 A CN 113856953A
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- Prior art keywords
- shielding
- positioning
- jig
- spraying
- module
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
- B05B12/20—Masking elements, i.e. elements defining uncoated areas on an object to be coated
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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
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- 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
Landscapes
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Abstract
The invention provides a spraying jig device and a spraying method, wherein the spraying jig device comprises a positioning jig, at least two shielding jigs and an adhesive tape; the shielding jig comprises a shielding part and a fixing part, the shielding part is connected with the fixing part, and the shielding part is used for partially shielding the packaging module; the positioning jig comprises at least two positioning grooves, the positioning grooves are used for positioning the shielding jig and the packaging module, the positioning grooves are used for enabling the shielding parts to partially shield the first surface of the packaging module and enabling the fixing parts and the second surface of the packaging module to be fixed on the adhesive tape. According to the invention, the shielding part of the shielding jig shields part of the packaging module through the positioning groove, and the fixing part and the second surface of the packaging module are fixed on the adhesive tape, so that the positioning jig is prevented from being placed in spraying equipment, the service life of the positioning jig is prolonged, the spraying operation cost is reduced, the positioning jig does not need to be cleaned after spraying operation, and the spraying operation efficiency is improved.
Description
Technical Field
The invention relates to the field of packaging, in particular to a spraying jig device and a spraying method.
Background
After the chip or the device is packaged to form the package module, a spraying process (local spraying) may be performed on a partial region of the package module to form a corresponding functional layer, for example, spraying an insulating layer to achieve a waterproof and dustproof function, and spraying a conductive layer to achieve an electromagnetic shielding and antistatic function.
As shown in fig. 1, the conventional spraying jig device includes a loading jig 30 ', a shielding jig 20 ', and the loading jig 30 ' has a groove. Before the local spraying, firstly, the package module 10 'is accommodated in the groove of the loading fixture 30', the shielding fixture 20 'is covered on the non-spraying area of the package module 10' and fixed in the loading fixture 30 'to expose the spraying area (e.g. upward) of the package module 30'; then, the loading jig 30 ', the shielding jig 20 ' and the package module 10 ' are placed into a process chamber of a spraying apparatus together to perform a spraying process. In the spraying process, the spraying material covers the surface of the loading jig 30 'and is solidified, so that the loading jig 30' needs to be cleaned (cleaned) regularly, the spraying operation efficiency is not facilitated, the service life of the loading jig 30 'is also seriously influenced by the repeated cleaning of the loading jig 30', and the operation cost is not facilitated to be reduced. In addition, if the spraying material is a conductive material containing heavy metals, the cleaning of the spraying material on the loading jig 30' is also not beneficial to environmental protection.
Disclosure of Invention
The invention aims to provide a spraying jig device and a spraying method, which are used for improving the efficiency of spraying operation and reducing the cost of the spraying operation.
In order to solve the above technical problems, the present invention provides a spraying jig device for performing local spraying on a package module, the package module having a first surface and a second surface opposite to each other, the first surface being a spraying surface, the spraying jig device comprising a positioning jig, at least two shielding jigs and an adhesive tape; the shielding jig comprises a shielding part and a fixing part, the shielding part is connected with the fixing part, and the shielding part is used for partially shielding the packaging module; the positioning jig comprises at least two positioning grooves, the positioning grooves are used for positioning the shielding jig and the packaging module, the positioning grooves are used for enabling the shielding part to partially shield the first surface of the packaging module and enabling the fixing part and the second surface of the packaging module to be fixed on the adhesive tape.
Optionally, the shielding portion is provided with an accommodating cavity, and the accommodating cavity is used for covering part of the packaging module.
Optionally, at least a part of the surface of the fixing portion facing the adhesive tape is a plane.
Optionally, the shielding portion and the fixing portion are integrally formed.
Optionally, the positioning groove includes a first positioning cavity and a second positioning cavity, the first positioning cavity is used for accommodating the shielding jig, the second positioning cavity is used for accommodating the packaging module, and the first positioning cavity and the second positioning cavity have an overlapping region.
Optionally, in the overlapping area, the blocking portion partially blocks the first surface of the encapsulation module, and the blocking portion is close to the bottom of the positioning slot relative to the encapsulation module.
Optionally, the shielding jig and the packaging module are arranged in the positioning groove, and the height difference between the fixing portion of the shielding jig, the second surface of the packaging module and the surface of the positioning groove is within a preset range.
Optionally, at least two of the encapsulation modules share one shielding jig to perform local spraying.
Optionally, the adhesive tape is a high temperature resistant adhesive tape.
The invention also provides a spraying method, which utilizes the spraying jig device, and the spraying method comprises the following steps: placing the shielding jig and the packaging module in a positioning groove of the positioning jig in sequence, wherein the positioning groove is placed upwards; attaching an adhesive tape to the surface of the positioning jig, and fixing the shielding jig and the packaging module by using the adhesive tape; and separating the adhesive tape and the positioning jig, and executing a spraying process by utilizing the adhesive tape, the shielding jig and the packaging module which are fixedly connected.
In summary, the spraying jig device and the spraying method provided by the invention have the following beneficial effects: the locating slot through the positioning jig shields the shielding part of the shielding jig and enables the fixing part and the second surface of the packaging module to be fixed on the adhesive tape, so that the positioning jig is prevented from being placed into spraying equipment, the service life of the positioning jig is prolonged, the positioning jig is completely free from being influenced by a spraying process, spraying operation cost is reduced, the positioning jig does not need to be cleaned after spraying operation, and spraying operation efficiency is improved.
Drawings
It will be appreciated by those skilled in the art that the drawings are provided for a better understanding of the invention and do not constitute any limitation to the scope of the invention.
Fig. 1 is a schematic view of a conventional spray jig device;
fig. 2 is a schematic cross-sectional view of a spraying jig device according to an embodiment of the present disclosure;
fig. 3 is a schematic top view of another spraying jig device according to an embodiment of the present disclosure;
fig. 4 is a schematic top view of another spraying jig device provided in the embodiment of the present application;
fig. 5 is a flowchart of a spraying method according to an embodiment of the present disclosure.
In fig. 1:
10' -packaging the module; 20' -shielding jig; and (6) 30' -loading a jig.
In fig. 2 to 4:
10-packaging the module; 11-a first side; 11 a-non-sprayed area; 11 b-area to be sprayed; 12-a second face;
20-shielding jig; 21-a shielding section; 22-a fixed part; 22 a-a convex surface;
30-positioning a jig; 31-a positioning groove; 31 a-a first positioning chamber; 31 b-a second positioning cavity;
40-adhesive tape.
Detailed Description
To further clarify the objects, advantages and features of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. It is to be noted that the drawings are in greatly simplified form and are not to scale, but are merely intended to facilitate and clarify the explanation of the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.
As used in this application, the singular forms "a", "an" and "the" include plural referents, the term "or" is generally employed in a sense including "and/or," the terms "a" and "an" are generally employed in a sense including "at least one," the terms "at least two" are generally employed in a sense including "two or more," and the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, features defined as "first," "second," and "third" may explicitly or implicitly include one or at least two of the features unless the content clearly dictates otherwise.
The embodiment of the application provides a spraying jig device and a spraying method, which are used for improving the efficiency of spraying operation and reducing the cost of the spraying operation.
Fig. 2 is a schematic view of a spraying jig device according to an embodiment of the present application.
As shown in fig. 2, the spraying jig device provided in this embodiment is used for performing local spraying on a package module 10, the package module 10 has a first surface 11 and a second surface 12 which are oppositely disposed, the first surface 11 is a spraying surface, and the spraying jig device includes a positioning jig 30, at least two shielding jigs 20, and an adhesive tape 40. The shielding jig 20 includes a shielding portion 21 and a fixing portion 22, the shielding portion 21 is connected to the fixing portion 22, and the shielding portion 21 is used for partially shielding the package module 10. The positioning fixture 30 includes at least two positioning grooves 31, the positioning grooves 31 are used for positioning the shielding fixture 20 and the package module 10, the shielding portion 21 partially shields the first surface 11 of the package module 10 by using the positioning grooves 31, and the fixing portion 22 and the second surface 12 of the package module 10 are both fixed on the tape 40 for performing the local spraying process.
The package module 10 in this embodiment may be a device packaged by a chip, a module assembled (packaged) by a device, or another object to be locally sprayed. The package module 10 has a first surface 11 and a second surface 12 disposed opposite to each other, at least one of the first surface 11 or the second surface 12 (a spraying surface) includes a region to be sprayed 11b and a non-spraying region 11a, and the non-spraying region 11a extends from an edge of the spraying surface. The areas to be painted 11b and the areas not to be painted 11a may be provided with corresponding structural units, the heights of the structural units may protrude from the surfaces of the corresponding package modules 10, and the heights of the structural units in the areas to be painted and the areas not to be painted 11a may be different. In this embodiment, the first surface 11 of the package module 10 is a spraying surface, the first surface 11 is provided with a region to be sprayed 11b and a non-spraying region 11a, and the non-spraying region 11a of the first surface 11 is provided with a structural unit protruding from the first surface 11, which may be, for example, a connecting end of the package module 10 for electrically leading out the package module 10.
Referring to fig. 2, the shielding jig 20 is used for shielding the non-spraying area 11a of the package module 10 and fixing the shielding jig 20 on the surface of the tape 40. The shielding jig 20 includes a shielding portion 21 and a fixing portion 22, the shielding portion 21 is fixedly connected to the fixing portion 22, the shielding portion 21 is used for shielding the non-spraying region 11a of the package module 10, and the fixing portion 22 is used for fixing the shielding jig 20 and the package module 10 to the surface of the tape 40.
In the present embodiment, the non-painting region 11a protrudes from the surface of the package module 10, and the shielding portion 21 is provided with a receiving cavity facing the package module 10 for receiving (covering) the non-painting region 11a (the structural unit thereon) of the package module 10 during the painting operation, so as to achieve a better local shielding effect. Of course, if the (unit structure of the) non-sprayed region 11a of the first face 11 has other shapes, the shape of the shielding portion 21 relative to the non-sprayed region 11a may also have other corresponding complementary shapes, for example, if the surface of the non-sprayed region 11a of the first face 11 is relatively flat with the surface of the region to be sprayed 11b, the shape of the shielding portion 21 relative to the non-sprayed region 11a is a flat surface, or the surface of the non-sprayed region 11a is recessed relative to the surface of the region to be sprayed 11b, the shape of the shielding portion 21 relative to the non-sprayed region 11a is a corresponding convex shape.
Referring to fig. 2, the fixing portion 22 is fixedly connected to the shielding portion 21, one side (the side facing the tape 40 or the side away from the positioning fixture 30) of the fixing portion 22 and the accommodating cavity of the shielding portion 21 has a protruding surface 22a opposite to the shielding portion 21, and at least a portion of the protruding surface 22a is a plane, so that when the shielding fixture 20 and the package module 10 are positioned and fixed, the surface of the fixing portion 22 (the protruding surface 22a) can be flush with the second surface 12 of the package module 10 (the height difference is within a predetermined range), thereby facilitating the fixing of the fixing portion 22 and the second surface 12 of the package module 10 on the tape 40. In addition, the shielding portion 21 (containing cavity) can also be abutted against the non-spraying area 11a of the package module 10 to form clearance fit, so as to form better shielding effect and fixing effect.
The shielding fixture 20 may have any suitable shape on the side away from the package module 10. In this embodiment, a side of the shielding jig 20 away from the package module 10 is a plane, and the plane and a corner of the sidewall of the shielding jig 20 form an oblique angle or a rounded angle, so as to facilitate processing and use of the shielding jig 20. Preferably, the shielding portion 21 and the fixing portion 22 are integrally formed, and the material thereof may be, for example, titanium alloy, aluminum alloy or stainless steel.
Referring to fig. 2, the positioning fixture 30 is used for accurately positioning the package module 10 and the shielding fixture 20, and fixing the package module 10 and the shielding fixture 20 on the tape 40. Specifically, the positioning fixture 30 is provided with at least two positioning grooves 31 (only one positioning groove is shown in fig. 2), the at least two positioning grooves 31 can be arranged in the positioning fixture 30 in an array manner, and the surface of the positioning fixture around the positioning groove 31 can be a plane so as to be attached to the adhesive tape 40.
The positioning groove 31 includes a first positioning cavity 31a and a second positioning cavity 31b, the first positioning cavity 31a is used for accommodating and positioning the shielding jig 20, and the second positioning cavity 31b is used for accommodating and positioning the packaging module 10. The first positioning cavity 31a and the second positioning cavity 31b have an overlapping area corresponding to the non-spraying area 11a of the package module 10 or the shielding portion 21 of the shielding jig 20. The shapes of the first positioning cavity 31a and the second positioning cavity 31b are matched with the shapes of the corresponding areas of the packaging module 10 and the shielding jig 20, so that accurate positioning can be realized through clearance fit. When the shielding jig 20 and the package module 10 are placed in the positioning groove 31, one side (accommodating cavity side) of the shielding portion 21 covers the non-spraying region 11a of the package module 10, the other side opposite to the shielding portion 21 faces (is close to) the bottom of the positioning groove 31, and the surfaces of the fixing portion 22 (protruding surface 22a) of the shielding jig 20, the second surface 12 of the package module 10 and the surface of the positioning jig (surface of the positioning groove 31) are substantially flush, that is, the height difference between the three is within a preset range. The tape 40 is flatly adhered to the fixing portion 22 of the shielding jig 20, the second surface 12 of the package module 10 and the plane formed by the surfaces of the positioning groove 31, so as to realize better local shielding and fixing of the shielding jig 20 and the package module 10.
The positioning fixture 30 may be made of a metal material such as titanium alloy, aluminum alloy, or stainless steel, so as to improve the dimensional accuracy and facilitate ESD.
As shown in fig. 3, in another embodiment, the first surface 11 of the package module 10 is provided with two independent non-spraying areas 11a, and the shielding jig 20 is also provided with two shielding portions 21, the two shielding portions 21 can be connected by a fixing portion 22, wherein the shape of the shielding portion 21 and the shape of the fixing portion 22 can be rectangular, for example. Accordingly, a positioning groove 31 (not shown) of the positioning fixture 30 has two first positioning cavities 31a and one second positioning cavity 31b, respectively, and has two overlapping regions. Similarly, if the first surface 11 of the package module 10 has more independent non-spraying areas 11a, the shielding fixture 20 and the positioning fixture 30 are correspondingly disposed.
In another embodiment, as shown in fig. 4, during the spraying operation, two encapsulation modules 10 share one shielding fixture 20, the shielding fixture 20 includes four shielding portions 21, the four shielding portions 21 correspond to the (four) non-spraying areas 11a of the two encapsulation modules 10, and the four shielding portions 21 share one fixing portion 22 for connection. Correspondingly, the two positioning grooves 31 of the positioning fixture 30 are communicated by a first positioning cavity 31a, that is, the two second positioning cavities 31b share the first positioning cavity 31 a. The shielding portion 21 and the fixing portion 22 may be rectangular, for example.
Referring to fig. 2, the tape 40 is used to fix the shielding jig 20 and the package module 10 to realize local spraying. The width of the adhesive tape 40 may be slightly wider than the width of the positioning fixture 30, so that the entire surface of the adhesive tape 40 is smoothly attached to the surface (the surface provided with the positioning groove 31) of the positioning fixture 30 that has received the shielding fixture 20 and the package module 10. Preferably, the tape 40 can be a high temperature tape 40 for high temperature spraying (spraying temperature below 300 ℃).
Fig. 5 is a flowchart of a spraying method for a package module according to an embodiment of the present disclosure.
As shown in fig. 5, the present embodiment further provides a spraying method, which performs a local spraying operation on a package module by using the spraying jig device, where the spraying method includes:
s01: placing the shielding jig and the packaging module in a positioning groove of the positioning jig in sequence, wherein the positioning groove is placed upwards;
s02: attaching an adhesive tape to the surface of the positioning jig, and fixing the shielding jig and the packaging module by using the adhesive tape;
s03: and separating the adhesive tape and the positioning jig, and executing a spraying process by utilizing the adhesive tape, the shielding jig and the packaging module which are fixedly connected.
In step S01, the positioning fixture is first placed upward (the opening of the positioning slot is upward), the shielding fixture is then placed in the first positioning cavity of the positioning slot, and the package module is then placed in the second positioning cavity of the positioning slot, such that the shielding portion of the shielding fixture forms a clearance fit with the non-spraying area of the package module. It should be understood that the containing cavity of the shielding portion is placed upwards when the shielding jig is placed, and the first surface (including the area to be sprayed and the non-spraying area) of the packaging module is placed downwards when the packaging module is placed.
In step S02, a tape with a suitable size is flatly attached to the surface of the positioning fixture by hand or by a film-sticking device, and the tape forms a better adhesion effect with the shielding fixture, the packaging module and the positioning fixture.
In step S03, the positioning jig is turned over so that the tape faces downward and the positioning jig faces upward, so that the positioning jig can be taken out from above, and the shielding jig can partially shield the encapsulation module and can be fixed (adhered) on the surface of the tape. The specific method may be, for example, placing the positioning fixture with the tape side facing downward and fixed on an adsorption platform, then taking the positioning fixture from above, and placing the tape, the shielding fixture adhered (fixed) on the tape, and the packaging module in the spraying equipment to perform the spraying process. From above-mentioned in-process, compare in prior art, after utilizing positioning jig to accomplish the location, and in need not putting into spraying equipment with positioning jig, can realize greatly prolonging positioning jig's life and make it not receive the influence of spraying operation (spraying material) completely to reduce the operating cost, in addition, also need not clear up positioning jig behind the spraying operation, simplified the flow of spraying operation, improve the efficiency of spraying operation. It should be understood that the adhesive tape is a common consumable in the production line, the cost is very low, and the personnel in the production line is skilled for corresponding operations.
In summary, the spraying jig device and the spraying method provided by the invention have the following beneficial effects: the locating slot through the positioning jig shields the shielding part of the shielding jig and enables the fixing part and the second surface of the packaging module to be fixed on the adhesive tape, so that the positioning jig is prevented from being placed into the spraying equipment, the service life of the positioning jig is prolonged, the positioning jig is completely free from being influenced by the spraying process, the spraying operation cost is reduced, the positioning jig does not need to be cleaned after the spraying operation, and the spraying operation efficiency is improved.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (10)
1. A spray coating jig device is used for locally spraying a packaging module, the packaging module is provided with a first surface and a second surface which are oppositely arranged, and the first surface is a spray coating surface;
the shielding jig comprises a shielding part and a fixing part, the shielding part is connected with the fixing part, and the shielding part is used for partially shielding the packaging module;
the positioning jig comprises at least two positioning grooves, the positioning grooves are used for positioning the shielding jig and the packaging module, the positioning grooves are used for enabling the shielding part to partially shield the first surface of the packaging module and enabling the fixing part and the second surface of the packaging module to be fixed on the adhesive tape.
2. The spraying jig device according to claim 1, wherein the shielding portion is provided with a receiving cavity for covering a portion of the encapsulation module.
3. The device according to claim 1, wherein at least a portion of the surface of the fixing portion facing the tape is a flat surface.
4. The spraying jig device according to any one of claims 1 to 3, wherein the shielding portion and the fixing portion are integrally formed.
5. The apparatus according to claim 1, wherein the positioning groove comprises a first positioning cavity and a second positioning cavity, the first positioning cavity is used for accommodating the shielding jig, the second positioning cavity is used for accommodating the encapsulation module, and the first positioning cavity and the second positioning cavity have an overlapping area.
6. The device according to claim 5, wherein the shielding portion partially shields the first surface of the encapsulation module in the overlapping region, and the shielding portion is close to the bottom of the positioning groove relative to the encapsulation module.
7. The device as claimed in claim 6, wherein the shielding fixture and the package module are disposed in the positioning groove, and a height difference between the fixing portion of the shielding fixture, the second surface of the package module and the surface of the positioning groove is within a predetermined range.
8. The apparatus of claim 1, wherein at least two of the encapsulation modules share one of the shielding jigs to perform local spraying.
9. The spraying jig device as claimed in claim 1, wherein the adhesive tape is a high temperature resistant adhesive tape.
10. A spraying method using the spraying jig device according to any one of claims 1 to 9, the spraying method comprising:
placing the shielding jig and the packaging module in a positioning groove of the positioning jig in sequence, wherein the positioning groove is placed upwards;
attaching an adhesive tape to the surface of the positioning jig, and fixing the shielding jig and the packaging module by using the adhesive tape;
and separating the adhesive tape and the positioning jig, and executing a spraying process by utilizing the adhesive tape, the shielding jig and the packaging module which are fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111294844.8A CN113856953A (en) | 2021-11-03 | 2021-11-03 | Spraying jig device and spraying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111294844.8A CN113856953A (en) | 2021-11-03 | 2021-11-03 | Spraying jig device and spraying method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113856953A true CN113856953A (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111294844.8A Pending CN113856953A (en) | 2021-11-03 | 2021-11-03 | Spraying jig device and spraying method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115025911A (en) * | 2022-07-14 | 2022-09-09 | 东莞市中麒光电技术有限公司 | Production tool and inking and spraying method for display module |
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2021
- 2021-11-03 CN CN202111294844.8A patent/CN113856953A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115025911A (en) * | 2022-07-14 | 2022-09-09 | 东莞市中麒光电技术有限公司 | Production tool and inking and spraying method for display module |
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