CN112937072A - Method for maintaining defects before full-lamination curing of liquid optical cement - Google Patents
Method for maintaining defects before full-lamination curing of liquid optical cement Download PDFInfo
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- CN112937072A CN112937072A CN202110325329.5A CN202110325329A CN112937072A CN 112937072 A CN112937072 A CN 112937072A CN 202110325329 A CN202110325329 A CN 202110325329A CN 112937072 A CN112937072 A CN 112937072A
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- optical cement
- defect
- liquid optical
- maintenance tool
- defects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B43/00—Operations specially adapted for layered products and not otherwise provided for, e.g. repairing; Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0007—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality
- B32B37/003—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality to avoid air inclusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B2037/1253—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives curable adhesive
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses a method for maintaining defects of liquid optical cement before full lamination and curing, which is characterized by comprising the following steps of: comprises the following six steps. According to the invention, the maintenance tool is used for matching with the liquid optical cement wrapping tool, and then defect derivation and defoaming are carried out on the liquid optical cement, so that the defects in the liquid optical cement are discharged from the inside of the product to the outside of the product, the maintenance method is simple, and the material loss caused by disassembly and the product defect caused by secondary processing are avoided; the method realizes perfect repair of defects detected before curing of the liquid optical cement full-lamination product, particularly remarkably improves the problems of low yield and high material cost of large-size full-lamination once, and simultaneously, the product appearance after maintenance can be seamless and free of color difference, the reliability of the maintenance part is not different from that of other parts, thereby greatly solving the problem of material waste caused by rework due to the defect of the large-size full-lamination process.
Description
Technical Field
The invention relates to the technical field of optical cement processing, in particular to a method for maintaining defects of a liquid optical cement before full lamination and solidification.
Background
The liquid optical cement full-lamination is originated from the lamination of a mobile phone panel, is applied and extensive in the field of mobile phones and small-size optical full-lamination, and the application of the liquid optical cement full-lamination of medium and large sizes is widely developed along with the development and the progress of the technology, however, unacceptable defects are generated in the liquid optical cement full-lamination technology and in the lamination process easily, such as the defects of foreign matter pollution, dirt or bubble generation during the lamination and the like in the liquid optical cement, and the defects seriously affect the one-time production yield of the liquid optical cement full-lamination and directly cause the reason that the production cost is higher.
Therefore, the maintenance technology after the liquid optical cement is attached is extremely important, although the conventional disassembly and rework method can also improve the material utilization rate of the defective product through the disassembly method, the material loss can be generated with a certain probability in the disassembly and rework process, the liquid optical cement can not be wasted in a large amount, and the material cost is still high.
Disclosure of Invention
The invention aims to provide a method for maintaining defects before full lamination and curing of liquid optical cement, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for maintaining defects before full lamination and curing of liquid optical cement is characterized by comprising the following steps: the method comprises the following six steps:
the method comprises the following steps: after the liquid optical cement is poured, observing the liquid optical cement before full-lamination curing, and determining the position of a bubble with a defect on a full-lamination product with the bubble defect after observation;
step two: wrapping the maintenance tool with the liquid optical cement, and penetrating the front end of the maintenance tool from the position closest to the defect to the position of the defect from the adhesive layer, wherein the maintenance tool needs to be selected according to the position of a defect bubble before use;
step three: before the maintenance tool is used, the outer surface of the maintenance tool needs to be cleaned and dried, and the maintenance tool is drawn out backwards at a constant speed after the head of the maintenance tool contacts with the defect in a dust-free environment;
step four: repeating the third step and the fourth step, and discharging the defects out of the product by using a liquid flow siphon principle until the defects disappear;
step five: after the defect bubble maintenance is finished, placing the liquid optical cement product which generates fine bubbles after maintenance into a high-pressure defoaming machine for defoaming;
step six: and inspecting the appearance and the function of the defect treatment condition of the liquid optical adhesive product after the maintenance, wherein the inspection contents of the cured optical adhesive comprise aging tests, light transmittance tests, haze tests, yellowing indexes and the like under different conditions.
Furthermore, the maintenance tool can be a sheet or a fine needle, the material of the maintenance tool can be plastic or metal, or a long tubular needle head and an injector are customized to be matched for use, cleaning and disinfection treatment is needed before use, and the maintenance tool is placed in a dust-free environment for storage after drying.
Further, the defect existing before the liquid optical cement is cured can be particle foreign matter, dirt, air bubbles or other impurities which are not liquid optical cement in essence.
Further, the defect in the liquid optical cement is moved in the liquid through the maintenance tool, the defect is discharged to the outside of the product from the inside along with the defect of the optical cement under the traction of the maintenance tool, and the defect in the liquid optical cement is separated from the maintenance tool by the aid of the non-woven fabric after the defect is discharged.
Further, in the defoaming process by using the defoaming machine, the defoaming pressure is greater than 0.1Mpa, the temperature is greater than 30 ℃, the defoaming time is more than 1 minute, and relevant data change is concerned at any time in the defoaming process.
Compared with the prior art, the invention has the beneficial effects that: according to the preparation method of the defect maintenance method before full-lamination curing of the liquid optical cement, the defect is led out and defoamed by matching the maintenance tool with the liquid optical cement wrapping tool, and the defect in the liquid optical cement is discharged from the inside of the product to the outside of the product, so that the maintenance method is simple, and the material loss caused by disassembly and the product defect caused by secondary processing are avoided; the method has the advantages that defects detected before the liquid optical cement full-lamination product is cured are perfectly repaired, particularly, the problems of low yield and high material cost of large-size full-lamination are remarkably solved, meanwhile, the appearance of the product after maintenance can achieve seamless and color difference-free performance, the reliability of the maintained part is not different from that of other parts, the problem of material waste caused by reworking due to defects in the large-size full-lamination process is greatly solved, a reliable technical method without material loss is provided for the defects after the liquid optical cement full-lamination, the yield and the material utilization rate of production can be greatly improved, the cost of full lamination is directly influenced, and the profit and the efficiency of production are improved.
Drawings
FIG. 1 is a schematic diagram of defect repair performed by the method for defect repair before full-lamination curing of liquid optical cement of the present invention.
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 of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1, an embodiment of the present invention: a method for maintaining defects before full lamination and curing of liquid optical cement is characterized by comprising the following steps: the method comprises the following six steps:
the method comprises the following steps: after the liquid optical cement is poured, observing the liquid optical cement before full-lamination curing, and determining the position of a bubble with a defect on a full-lamination product with the bubble defect after observation;
step two: wrapping the maintenance tool with the liquid optical cement, and penetrating the front end of the maintenance tool from the position closest to the defect to the position of the defect from the adhesive layer, wherein the maintenance tool needs to be selected according to the position of a defect bubble before use;
step three: before the maintenance tool is used, the outer surface of the maintenance tool needs to be cleaned and dried, and the maintenance tool is drawn out backwards at a constant speed after the head of the maintenance tool contacts with the defect in a dust-free environment;
step four: repeating the third step and the fourth step, and discharging the defects out of the product by using a liquid flow siphon principle until the defects disappear;
step five: after the defect bubble maintenance is finished, placing the liquid optical cement product which generates fine bubbles after maintenance into a high-pressure defoaming machine for defoaming;
step six: and inspecting the appearance and the function of the defect treatment condition of the liquid optical adhesive product after the maintenance, wherein the inspection contents of the cured optical adhesive comprise aging tests, light transmittance tests, haze tests, yellowing indexes and the like under different conditions.
Further, maintenance tool can be thin slice, thin needle, and its material can be plastics or metal, perhaps customization long tubular syringe needle and syringe cooperation use, need carry out cleaning and disinfecting before the use and handle, puts into dustless environment after the drying is accomplished and stores, avoids maintenance tool to lead to the inside of liquid optical cement with the impurity that self carried when using and causes secondary pollution.
Further, the defects existing before the liquid optical cement is cured can be particle foreign matters, dirt, bubbles or other impurities which are not liquid optical cement in nature, the positions of the defects and the impurities which are related to each other need to be recorded before the defects and the impurities are removed, and a measuring instrument is used for detecting the nearest processing position, so that a user can conveniently check the defects and the impurities after maintenance.
Further, the defect in the liquid optical cement is moved in the liquid through the maintenance tool, the defect is discharged to the outside of the product from the inside along with the defect of the optical cement under the traction of the maintenance tool, and the defect in the liquid optical cement is separated from the maintenance tool by the aid of the non-woven fabric after the defect is discharged.
Further, in the defoaming process by using the defoaming machine, the defoaming pressure is greater than 0.1Mpa, the temperature is greater than 30 ℃, the defoaming time is more than 1 minute, relevant data changes are concerned in the defoaming process, and the positions of defects existing before the liquid optical cement is processed are observed after the liquid optical cement is processed, so that the phenomenon of leaving behind is avoided.
Example 2
A defect maintenance device before liquid optical cement is laminated solidification entirely:
1. defect maintenance device includes before liquid optical cement laminating solidification entirely: protective panel/touch panel 1, liquid optical glue layer 2.
1.1, the protective panel/touch panel 1 comprises a display area 11 and a non-display area 12, the non-display area 12 can be an opaque area covered by ink or other materials or an uncovered transparent area, the protective panel/touch panel 1 can be a protective cover plate with or without functions, the functions can be functional performances such as shielding interference, heating and the like, and the protective panel can be a touch panel or a protective panel with a touch function.
1.2, the liquid optical adhesive layer 2 is an optical adhesive for adhering the protection panel/touch panel 1 and the display panel/display module 3, the adhesive material is liquid, transparent and colorless in a normal state, wherein the defect 22 is inside the adhesive material layer, the defect 22 is also a maintenance part, and the maintenance tool 21 enters the maintenance area 22 from a position close to the defect 22.
2. Application method of defect maintenance device before full lamination and solidification of liquid optical cement
During maintenance, the maintenance tool 21 is wrapped by liquid optical cement, namely the maintenance tool 21 is soaked into the liquid optical cement, and the processed tool 21 is penetrated from the nearest position of the defect 22 by the liquid optical cement layer 2 until the head of the maintenance tool 21 contacts the defect 22, as shown in fig. 1;
after the maintenance tool 21 touches the defect 22, the maintenance tool 21 is drawn out at a constant speed, the defect 22 is discharged to the outside of the product along with the maintenance tool 21, the maintenance tool 21 can be replaced by a perforated needle which is directly matched with an injector to directly suck the defect 22 into the injector to take the defect out of the product, and the head of the maintenance tool 21 can be made into a certain shape to clamp or hook the defect 22 out of the product;
after the defect 22 is removed from the liquid optical adhesive layer 2, whether the defoaming treatment is needed or not is determined according to the appearance condition of the product after maintenance, if so, the defoaming treatment is carried out, and if no other bubbles are generated, the appearance and function inspection steps are directly carried out.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. A method for maintaining defects before full lamination and curing of liquid optical cement is characterized by comprising the following steps: the method comprises the following six steps:
the method comprises the following steps: after the liquid optical cement is poured, observing the liquid optical cement before full-lamination curing, and determining the position of a bubble with a defect on a full-lamination product with the bubble defect after observation;
step two: wrapping the maintenance tool with the liquid optical cement, and penetrating the front end of the maintenance tool from the position closest to the defect to the position of the defect from the adhesive layer, wherein the maintenance tool needs to be selected according to the position of a defect bubble before use;
step three: before the maintenance tool is used, the outer surface of the maintenance tool needs to be cleaned and dried, and the maintenance tool is drawn out backwards at a constant speed after the head of the maintenance tool contacts with the defect in a dust-free environment;
step four: repeating the third step and the fourth step, and discharging the defects out of the product by using a liquid flow siphon principle until the defects disappear;
step five: after the defect bubble maintenance is finished, placing the liquid optical cement product which generates fine bubbles after maintenance into a high-pressure defoaming machine for defoaming;
step six: and inspecting the appearance and the function of the defect treatment condition of the liquid optical adhesive product after the maintenance, wherein the inspection contents of the cured optical adhesive comprise aging tests, light transmittance tests, haze tests, yellowing indexes and the like under different conditions.
2. The method for repairing the defects of the liquid optical cement before full-lamination curing according to claim 1, characterized in that: the maintenance tool can be a sheet or a thin needle, the material of the maintenance tool can be plastic or metal, or a long tubular needle head and an injector are customized to be matched for use, cleaning and disinfection treatment is needed before use, and the maintenance tool is placed in a dust-free environment for storage after drying is completed.
3. The method for repairing the defects of the liquid optical cement before full-lamination curing according to claim 1, characterized in that: the defects existing before the liquid optical cement is cured can be particle foreign matters, dirt, bubbles or other impurities which are not liquid optical cement in essence.
4. The method for repairing the defects of the liquid optical cement before full-lamination curing according to claim 1, characterized in that: the defect in the liquid optical cement is moved in the liquid through the maintenance tool, the defect is discharged to the outside of the product from the inside along with the defect of the optical cement under the traction of the maintenance tool, and the defect in the liquid optical cement is separated from the maintenance tool by utilizing the non-woven fabric after the defect is discharged.
5. The method for repairing the defects of the liquid optical cement before full-lamination curing according to claim 1, characterized in that: in the defoaming process by using the defoaming machine, the defoaming pressure is greater than 0.1Mpa, the temperature is greater than 30 ℃, the defoaming time is more than 1 minute, and relevant data change is concerned at any time in the defoaming process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110325329.5A CN112937072A (en) | 2021-03-26 | 2021-03-26 | Method for maintaining defects before full-lamination curing of liquid optical cement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110325329.5A CN112937072A (en) | 2021-03-26 | 2021-03-26 | Method for maintaining defects before full-lamination curing of liquid optical cement |
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| CN112937072A true CN112937072A (en) | 2021-06-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115503321A (en) * | 2022-09-22 | 2022-12-23 | 苏州桐力光电股份有限公司 | Bubble maintenance method in full-lamination product, terminal equipment and assembly method thereof |
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2021
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Patent Citations (5)
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| KR20080055669A (en) * | 2006-12-13 | 2008-06-19 | 베이징 보에 옵토일렉트로닉스 테크놀로지 컴퍼니 리미티드 | Method for repairing liquid crystal display panel |
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| CN115503321A (en) * | 2022-09-22 | 2022-12-23 | 苏州桐力光电股份有限公司 | Bubble maintenance method in full-lamination product, terminal equipment and assembly method thereof |
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Application publication date: 20210611 |