CN112440462A - Process for dropping glue and then pasting protective film on curved screen - Google Patents
Process for dropping glue and then pasting protective film on curved screen Download PDFInfo
- Publication number
- CN112440462A CN112440462A CN201910803243.1A CN201910803243A CN112440462A CN 112440462 A CN112440462 A CN 112440462A CN 201910803243 A CN201910803243 A CN 201910803243A CN 112440462 A CN112440462 A CN 112440462A
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- CN
- China
- Prior art keywords
- screen
- glue
- protective film
- curved
- curved glass
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
- B29C65/4845—Radiation curing adhesives, e.g. UV light curing adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3475—Displays, monitors, TV-sets, computer screens
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention relates to the technical field of screen protection films, in particular to a process for dripping glue and then pasting a protection film on a curved screen, which comprises a sucker, a protection film, ultralow-viscosity liquid state screen pasting glue and a curved glass screen, and comprises the following steps: s1, cleaning the curved glass screen, placing the curved glass screen parallel to the operating table, and dripping the ultralow viscous liquid state touch screen glue water into the middle of the upper end of the curved glass screen by 3-9 drops; and S2, bending the protective film into a certain angle by using a sucker, and pressing the protective film downwards by using the sucker. The novel gluing process integrates the advantages of OCA and LOCA, reduces the process complexity and the cost, and the unique glue dripping and protective film gluing process enables glue to automatically level and compensate the radian tolerance of a curved glass screen, thoroughly solves the problem of low gluing yield, controls the thickness of the glue to be 3-10 mu m, improves the scratch resistance of the protective film and reduces the generation of various defects.
Description
Technical Field
The invention relates to the technical field of screen protection films, in particular to a process for dripping glue on a curved screen and then pasting a protection film.
Background
The flexible protection film of present screen adopts mainly is OCA, glue coating on the protection film in advance need be carried out to this kind of technology to laminate the protection film on the screen through the mode of roll extrusion or vacuum laminating, conventional LOCA laminating technology is often applied to the laminating of hard to hard material, through the clearance between glue filling face and the face, OCA laminating technology complexity is high, and with higher costs, and the laminating success rate is lower, this kind of mode can produce the bubble, the edge rises to stick up, glue thickness is thicker scheduling problem, it is higher to laminating counterpoint precision requirement, the yield is about 70%.
Traditional LOCA mainly is applied to hard material, can not be applicable to the flexible material to the laminating entirely of hard material, and is not enough to gluing thick control, and the flowing screen time is long.
Disclosure of Invention
The invention aims to provide a process for dropping glue and then pasting a protective film on a curved screen so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a process for dripping glue and then pasting a protective film on a curved screen comprises a sucker, a protective film, ultralow-viscosity liquid state screen pasting glue and a curved glass screen, and comprises the following steps:
s1, cleaning the curved glass screen, placing the curved glass screen parallel to the operating table, and dripping the ultralow viscous liquid state screen pasting glue in the middle of the upper end of the curved glass screen;
and S2, bending the protective film into a certain angle by using a sucker, placing the protective film in a direction parallel to the curved glass screen and the upper part of the ultralow viscous liquid state adhesive screen, and extruding the protective film downwards by using the sucker.
S3, after the protective film is slowly pressed downwards to a certain height by the sucker, the sucker is opened to enable the protective film to naturally wrap the two sides of the curved glass screen;
s4, the sucker is quickly separated after being opened, the protective film is enabled to naturally wrap the curved glass screen under the adsorption force of the ultralow viscous state touch screen glue, and then the ultralow viscous state touch screen glue is photo-cured.
Preferably, the sucking disc is a wind power sucking disc, and an air duct is arranged in the middle of the sucking disc.
Preferably, the step of cleaning the curved glass screen in S1 is:
step 1, blowing off attachments on the surface of a curved glass screen through a blowing air gun;
and 3, carrying out adhesive residue inspection on the surface of the curved glass screen by using adhesive paper.
Preferably, the suction cups in S2 are located on both sides of the upper end of the protective film.
Preferably, in S2, the central portion of the protective film and the ultra-low viscous liquid state of the touch screen glue are distributed correspondingly.
Preferably, the S4 ultra-low viscous liquid touch screen glue is light-sensitive cured by using an ultraviolet lamp.
Compared with the prior art, the invention has the beneficial effects that:
1. the novel gluing process integrates the advantages of OCA and LOCA, reduces the process complexity and the cost, and the unique glue dripping and protective film gluing process enables glue to automatically level and compensate the radian tolerance of a curved glass screen, thoroughly solves the problem of low gluing yield, controls the thickness of the glue to be 3-10 mu m, improves the scratch resistance of the protective film and reduces the generation of various defects.
2. According to the invention, the protective film is used for extruding the ultralow-viscosity liquid-state screen pasting glue from inside to outside, and the self-flowing property of the ultralow-viscosity liquid-state screen pasting glue is utilized, so that the protective film and the curved glass screen are better combined, the glue naturally flows, the unevenness caused by the tolerance of the curved glass screen is filled, the yield is improved to 95% from about 70%, the yield is greatly improved, on one hand, the thickness of the protective film and the curved glass screen is greatly reduced through extrusion, the possibility of scratches caused by the thickness of the glue is reduced, meanwhile, the 3D fingerprint unlocking under the screen is realized, the better conduction is realized, on the other hand, the smooth gap between the curved glass screen and the protective film in the laminating process can be filled through the self-flowing of the ultralow-viscosity liquid-state screen pasting glue, and the air between the protective film and the curved glass screen can be extruded out in the laminating process due to the self-flowing from inside to outside of the ultralow-viscosity liquid-state, the extrusion process is also a bubble discharging process, vacuum or pressurization bubble discharging is not needed, the process flow and time are saved, a plane glue layer formed by extrusion can reach the thickness of 3-10 microns and is far thinner than glue thickness required by the conventional process, when the ultralow viscous state screen pasting glue flows to the curved surfaces on the two sides of the water level of the curved surface glass screen, the sucker is opened, the protective film can be freely attached to the curved surface glass screen under the adsorption effect of the ultralow viscous state screen pasting glue, the generated effect can be achieved, the ultralow viscous state screen pasting glue can be fully filled, glue overflow caused by extrusion and the adsorption force between the ultralow viscous state screen pasting glue and the protective film and the curved surface glass screen can be prevented, the phenomenon of glue overflow can not occur under a proper natural state, and the main defects in the current process are greatly improved.
Drawings
FIG. 1 is a diagram showing the relationship between the positions of the process of dropping glue and attaching a protective film on a curved screen according to the present invention;
FIG. 2 is a flow chart of the process of dropping glue and then sticking a protective film on the curved screen.
In the figure: 1-sucker, 2-protective film, 3-ultralow viscous liquid state touch screen glue and 4-curved glass screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Examples
The utility model provides a glue dripping pastes protection film technology again on curved surface screen, includes sucking disc 1, protection film 2, ultralow mucus state touch-screen glue 3 and curved surface glass screen 4, and sucking disc 1 is wind-force sucking disc, and is equipped with the ventiduct in the middle of sucking disc 1, includes following step:
1. cleaning the curved glass screen 4, placing the curved glass screen 4 in parallel to the operating table, and dripping 3-9 parts of ultra-low viscous liquid state touch screen glue in the middle of the upper end of the curved glass screen 4;
wherein the curved glass screen 4 is cleaned:
step 1, blowing off attachments on the surface of a curved glass screen 4 by using a blowing air gun;
and 3, carrying out adhesive residue inspection on the surface of the curved glass screen 4 by using adhesive paper.
2. The protective film 2 is bent to a certain angle by the sucker 1, the suckers 1 in S2 are positioned at two sides of the upper end of the protective film 2, the protective film 2 is arranged in parallel to the upper part of the curved glass screen 4 and the ultralow viscous state screen pasting glue 3, the center of the protective film 2 in S2 is correspondingly distributed with the ultralow viscous state screen pasting glue 3, then the protective film 2 is extruded downwards by the suckers 1, the ultralow viscous state screen pasting glue is extruded from inside to outside by the protective film, the protective film and the curved glass screen are better combined by utilizing the self-flowing property of the ultralow viscous state screen pasting glue, the glue flows naturally, uneven yield caused by the tolerance of the curved glass screen is filled, the yield is improved to 95 percent from about 70 percent, the yield is greatly improved, on the one hand, the thickness of the protective film and the curved glass screen is greatly reduced by extrusion, and the possibility of scratches caused by the glue thickness is reduced, meanwhile, the unlocking of the 3D fingerprint under the screen is realized, better conduction is realized, on the other hand, the smooth gap between the curved glass screen and the protective film in the attaching process can be filled through the self-flowing of the ultra-low viscous liquid touch screen glue, the air between the protective film and the curved glass screen can be extruded out in the attaching process due to the self-flowing of the ultra-low viscous liquid touch screen glue from inside to outside, the extruding process is also a bubble discharging process at the same time, the vacuum or pressurization bubble discharging is not needed, the process flow and time are saved, and the thickness of a plane glue layer formed by extrusion can reach 3-10 mu m and is far thinner than that required by the conventional process.
3. After the sucker 1 slowly presses the protective film 2 downwards to a certain height, the sucker 1 is opened to enable the protective film 2 to naturally wrap the two sides of the curved glass screen 4, when the ultralow-viscosity liquid-state touch screen glue reaches the curved surfaces on the two sides of the water level of the curved glass screen, the sucker is opened, the protective film can be freely attached to the curved glass screen under the adsorption effect of the ultralow-viscosity liquid-state touch screen glue, the generated effect can be achieved, the ultralow-viscosity liquid-state touch screen glue can be fully filled, glue overflow caused by extrusion can be prevented, the adsorption force between the ultralow-viscosity liquid-state touch screen glue and the protective film and the curved glass screen can be prevented, the phenomenon of glue overflow can not occur under a proper natural state, and the main defects in the current process are greatly improved.
4. The sucker 1 is quickly separated after being opened, the protective film 2 is enabled to naturally wrap the curved glass screen 4 under the adsorption force of the ultralow viscous liquid state screen pasting glue 3 to complete the light sensation curing, then the ultralow viscous liquid state screen pasting glue 3 is cured through light sensation, S4 the light sensation curing ultralow viscous liquid state screen pasting glue 3 adopts an ultraviolet lamp to perform light sensation curing, a new laminating process is adopted, the advantages of OCA and LOCA are integrated, the process complexity is reduced, the cost is reduced, the unique glue dripping and protective film re-pasting process is realized, the glue can automatically level and compensate the radian tolerance of the curved glass screen, the problem of low laminating yield is thoroughly solved, the thickness of the glue is controlled to be 3-10 mu m, the scratch resistance of the protective film is improved, and the generation of various defects is reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a glue dripping pastes protection film technology again on curved surface screen, includes sucking disc (1), protection film (2), ultra-low mucus state touch screen glue (3) and curved surface glass screen (4), its characterized in that includes following step:
s1, cleaning the curved glass screen (4), placing the curved glass screen (4) in parallel with the operating table, and dripping the ultralow viscous liquid state screen pasting glue (3) in the middle of the upper end of the curved glass screen (4);
s2, bending the protective film (2) into a certain angle in a centering way by using the sucker (1), placing the protective film (2) in a direction parallel to the upper parts of the curved glass screen (4) and the ultralow viscous liquid state screen pasting glue (3), and then extruding the protective film (2) downwards by using the sucker (1);
s3, after the protective film (2) is slowly pressed downwards to a certain height by the sucker (1), the sucker (1) is opened to enable the protective film (2) to naturally wrap the two sides of the curved glass screen (4);
s4, the sucker (1) is quickly separated after being opened, the protective film (2) is enabled to naturally wrap the curved glass screen (4) under the adsorption force of the ultra-low viscous liquid state touch screen glue (3) to be finished, and then the ultra-low viscous liquid state touch screen glue (3) is cured through light sensation.
2. The process of claim 1, wherein the process comprises the steps of dropping glue on a curved screen and then pasting a protective film on the curved screen, wherein the process comprises the following steps: the sucker (1) is a wind sucker, and an air duct is arranged in the middle of the sucker (1).
3. The process of claim 1, wherein the process comprises the steps of dropping glue on a curved screen and then pasting a protective film on the curved screen, wherein the process comprises the following steps: the step of cleaning the curved glass screen (4) in the S1 is as follows:
step 1, blowing off attachments on the surface of a curved glass screen (4) by using a blowing air gun;
step 2, spraying a little of cleaning agent on the curved glass screen (4), and wiping the curved glass screen clean by clean cloth along the same direction;
and 3, carrying out adhesive residue inspection on the surface of the curved glass screen (4) by using adhesive paper.
4. The process of claim 1, wherein the process comprises the steps of dropping glue on a curved screen and then pasting a protective film on the curved screen, wherein the process comprises the following steps: and in the S2, the suckers (1) are distributed on two sides of the upper end of the protective film (2).
5. The process of claim 1, wherein the process comprises the steps of dropping glue on a curved screen and then pasting a protective film on the curved screen, wherein the process comprises the following steps: and in the S2, the center of the protective film (2) and the ultralow viscous liquid state screen pasting glue (3) are distributed correspondingly.
6. The process of claim 1, wherein the process comprises the steps of dropping glue on a curved screen and then pasting a protective film on the curved screen, wherein the process comprises the following steps: and the S4 ultra-low viscous liquid state screen pasting glue (3) is cured by light sensation by adopting an ultraviolet lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910803243.1A CN112440462A (en) | 2019-08-28 | 2019-08-28 | Process for dropping glue and then pasting protective film on curved screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910803243.1A CN112440462A (en) | 2019-08-28 | 2019-08-28 | Process for dropping glue and then pasting protective film on curved screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112440462A true CN112440462A (en) | 2021-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910803243.1A Pending CN112440462A (en) | 2019-08-28 | 2019-08-28 | Process for dropping glue and then pasting protective film on curved screen |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113980584A (en) * | 2021-12-17 | 2022-01-28 | 河源然生新材料有限公司 | UV glue, preparation method and application thereof, and protective film |
| CN117565533A (en) * | 2023-11-16 | 2024-02-20 | 黑龙江天有为电子股份有限公司 | Full-fitting screen assembly and manufacturing method and manufacturing equipment thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003103531A (en) * | 2001-09-27 | 2003-04-09 | Mitsubishi Plastics Ind Ltd | Method for manufacturing sheet-like molding of photosetting resin |
| CN107245318A (en) * | 2017-07-13 | 2017-10-13 | 深圳市安泉科技有限公司 | One photocuring glue and its preparation method and application |
| CN107433752A (en) * | 2017-06-07 | 2017-12-05 | 吴秀兰 | Chip architecture and its manufacture method for the protection of curved surface electronic equipment screen |
-
2019
- 2019-08-28 CN CN201910803243.1A patent/CN112440462A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003103531A (en) * | 2001-09-27 | 2003-04-09 | Mitsubishi Plastics Ind Ltd | Method for manufacturing sheet-like molding of photosetting resin |
| CN107433752A (en) * | 2017-06-07 | 2017-12-05 | 吴秀兰 | Chip architecture and its manufacture method for the protection of curved surface electronic equipment screen |
| CN107245318A (en) * | 2017-07-13 | 2017-10-13 | 深圳市安泉科技有限公司 | One photocuring glue and its preparation method and application |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113980584A (en) * | 2021-12-17 | 2022-01-28 | 河源然生新材料有限公司 | UV glue, preparation method and application thereof, and protective film |
| CN117565533A (en) * | 2023-11-16 | 2024-02-20 | 黑龙江天有为电子股份有限公司 | Full-fitting screen assembly and manufacturing method and manufacturing equipment thereof |
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Application publication date: 20210305 |