CN111497423B - Film tearing device, static eliminating device and static detecting device - Google Patents
Film tearing device, static eliminating device and static detecting device Download PDFInfo
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- CN111497423B CN111497423B CN202010318272.1A CN202010318272A CN111497423B CN 111497423 B CN111497423 B CN 111497423B CN 202010318272 A CN202010318272 A CN 202010318272A CN 111497423 B CN111497423 B CN 111497423B
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- film tearing
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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
- B32B43/006—Delaminating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/12—Measuring electrostatic fields or voltage-potential
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
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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
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
-
- 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
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
- B32B2457/208—Touch screens
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The invention is suitable for the field of manufacturing flat panel display products and touch screen products, in particular to a film tearing device, which comprises a film tearing mechanism and a component to be torn, wherein the film tearing mechanism is arranged on a base with vacuum adsorption; the film component to be torn is attached to the film tearing device through vacuum negative pressure; and an electrostatic elimination device, includes the aforesaid tear film device to and ionization equipment, wherein, ionization equipment's ion export is in towards the negative pressure laminating the space that constitutes between the plane that waits to tear film assembly place on the tear film device and the film of tearing off carries out static neutralization elimination, is applicable to and solves the static protection demand of laminating process tear film process, has effectively solved the relevant loss problem of static that the tear film process caused for relevant electronic factory.
Description
Technical Field
The invention belongs to the field of manufacturing of flat panel display products and touch screen products, and particularly relates to a film tearing device, a static eliminating device and a static detecting device.
Background
The flat panel display product and the touch screen product are manufactured in a module section, and a plurality of attaching processes are carried out, including attaching a polaroid, attaching a screen and a backlight module, attaching cover plate glass, fully attaching the display screen and the touch screen, attaching a protective film and the like. The bonding processes involve a process of tearing off the protective film before bonding, and the tearing off process is very easy to generate a large amount of static electricity, so that the bonding process generally generates a high-risk electrostatic charging key point, if the static electricity is not timely and effectively eliminated, components and products with high static electricity residue can cause high undesirable loss of the products due to the high static electricity after entering the post-production process: one is that no tangible physical damage occurs inside the product but only a temporary test failure; the other is irreversible failure in which physical damage occurs inside the product. These processes mainly involve the assembly of the electronic components by bonding and the electrical measurement process.
At present, the relevant static elimination measures can not effectively eliminate the high static electricity generated by the components and the products in the film tearing process, and further the bad loss of the product production caused by the high static electricity residue continuously occurs.
Disclosure of Invention
The embodiment of the invention aims to provide a film tearing device, a static electricity eliminating device and a static electricity detecting device, and aims to solve the problem that related static electricity eliminating measures in the industry cannot effectively eliminate high static electricity generated by components and products in the film tearing process, and further, the high static electricity residue continuously occurs to cause bad product production loss. In order to achieve the purpose, the invention provides the following technical scheme:
the film tearing device comprises a film tearing mechanism and a film component to be torn, wherein the film tearing mechanism is arranged on a base with vacuum adsorption; the film tearing assembly is attached to the film tearing device through vacuum negative pressure.
The film tearing mechanism is attached to the film tearing assembly, so that the limitation of evaluating the electrostatic charge severe distortion of the film tearing assembly after film tearing in the current industry film tearing process is solved.
Further scheme: the film tearing mechanism is of an integrated structure or a multi-part combined structure.
A further scheme is as follows: the film tearing mechanism is provided with a plurality of vacuum holes for vacuum adsorption on the film tearing device base.
The further scheme is as follows: the resistance between the upper surface and the lower surface of the film tearing mechanism is larger than 1E11 ohm, and the volume resistance of the film tearing mechanism is larger than 1E11 ohm.
The further scheme is as follows: the thickness of the film tearing mechanism is not less than 10 mm.
The further scheme is as follows: the thickness of the film tearing mechanism is not less than 20 mm.
It is another object of the present invention to provide a static elimination apparatus, comprising the above-mentioned film tearing apparatus, and an ionization device, wherein,
the ion outlet of the ionization equipment is attached to the film tearing device towards negative pressure, and static neutralization and elimination are carried out on the film tearing device to be torn.
The ion outlet of ionization equipment is in towards the laminating of negative pressure the space that constitutes between the plane that waits to tear the membrane subassembly place on the dyestripping device and the film that tears from, carry out static neutralization and eliminate, be applicable to and solve the electrostatic protection demand of all laminating process dyestripping processes, the high static that produces with the dyestripping process is evaluated to the validity of the static electrification level including dyestripping back subassembly, product can obtain timely effectual elimination to effectively solved the dyestripping process and given the relevant loss problem of static that the relevant electronic factory caused.
A further scheme is as follows: the ionization equipment is any one of ionization equipment which conveys positive and negative ions by air flow and ionization equipment which does not have air flow, wherein the ionization equipment which conveys the positive and negative ions by air flow is any one of an ion air bar and an ion fan.
The invention also aims to provide an electrostatic detection device, which comprises a test device I with a non-contact type electrostatic voltage or electrostatic field test;
the device also comprises the film tearing device;
testing equipment I can accomplish and is in through vacuum negative pressure laminating the static electrification level measurement that carries out full range scanning formula detection to its dyestripping surface after finishing to the subassembly dyestripping process of waiting on the dyestripping device.
The further scheme is as follows: when test equipment I carries out electrostatic detection to the membrane component of waiting to tear, wait to tear the membrane component and attach in the aforesaid tear the membrane device on.
An electrostatic elimination device comprises the film tearing device and ionization equipment, wherein an ion outlet of the ionization equipment faces to a space formed between a plane where a film component to be torn is attached to the film tearing device under negative pressure and a torn film, and static neutralization elimination is carried out; the invention is suitable for solving the electrostatic protection requirements of the film tearing process in all the laminating procedures, and comprises the validity evaluation of the electrostatic charge level of the components and products after film tearing and the timely and effective elimination of high static generated in the film tearing process, thereby effectively solving the problem of static related loss caused by the film tearing process to related electronic factories.
Drawings
FIG. 1 is a schematic view of an electrostatic elimination apparatus according to the present invention;
FIG. 2 is a schematic diagram of an exemplary construction of the tear away mechanism of FIG. 1;
FIG. 3 is a schematic diagram of a conventional film tearing apparatus;
FIG. 4 is a schematic structural view of a conventional static elimination apparatus;
FIG. 5 is a schematic diagram of a conventional electrostatic detection apparatus for a factory;
FIG. 6 is a schematic view of the electrostatic detection apparatus according to the present invention;
FIG. 7 is a schematic diagram of the method for measuring the resistance between two points on the conductive surface of the film tearing mechanism according to the present invention;
FIG. 8 is a schematic diagram of a method for testing the conductive volume resistance of the film tearing mechanism of the present invention;
FIG. 9 is a schematic diagram of an exemplary application of the electrostatic elimination apparatus in a factory;
FIG. 10 is a schematic diagram of a second exemplary application of the electrostatic discharge apparatus in a factory.
In the figure:
101-a film tearing device base; 102-a film tearing mechanism; 103-a film component to be torn; 104-protective film; 105-an ionizing device;
201-vacuum holes;
301-tear film suction cup;
501-fitting components; 502-test equipment i;
701-testing equipment II; 702-test electrode i; 703-a backing plate;
801-test electrode ii; 802-test electrode iii.
Detailed Description
The invention aims to provide a film tearing device, a static electricity eliminating device and a static electricity detecting device, and aims to solve the problem that related static electricity eliminating measures in the industry cannot effectively eliminate high static electricity generated by components and products in the film tearing process at present, and further, the product production is badly lost due to high static electricity residue continuously. In order to achieve the purpose, the invention provides the following technical scheme:
In the embodiment of the present invention, please refer to fig. 1 and fig. 2, the present invention provides a film tearing apparatus, including a film tearing mechanism 102 and a component 103 to be torn, where the film tearing mechanism 102 is installed on a film tearing apparatus base 101 with vacuum absorption;
and the film tearing assembly 103 is attached to the film tearing device through vacuum negative pressure.
Through will treating that tear film subassembly 103 laminates tear film mechanism on, solved present in the industry tear film process evaluate treat tear film subassembly in the restriction of the serious distortion of the electrostatic charge after the tear film.
In the embodiment of the present invention, referring to fig. 1 and fig. 2, the base 101 of the film tearing device is made of metal materials commonly used in the industry, including stainless steel, aluminum alloy, etc.
In the embodiment of the present invention, referring to fig. 1 and fig. 2, the film tearing mechanism 102 is provided with a plurality of vacuum holes 201 for vacuum absorption on the film tearing device base 101;
in an embodiment of the present invention, referring to fig. 1 and fig. 2, there is further provided a static electricity eliminating apparatus, including the above-mentioned film tearing apparatus, and an ionizing device 105, wherein,
and an ion outlet of the ionization equipment 105 faces to a space formed between a plane where the film component 103 to be torn on the film tearing device is attached under negative pressure and the torn film, so that static neutralization and elimination are performed.
The electrostatic protection device is suitable for solving the electrostatic protection requirements of the film tearing process in all laminating processes, and the high static electricity generated in the film tearing process can be timely and effectively eliminated by the effectiveness evaluation of the electrostatic charge level of the components and products after the film tearing process, so that the problem of static-related loss caused by the film tearing process to related electronic factories is effectively solved.
In the embodiment of the present invention, referring to fig. 1 and fig. 2, the ionization device 105 is any one of an ionization device that transports positive and negative ions by means of air flow and an ionization device that has no air flow, and the specific device is not limited as long as the technical requirements according to the specific process are met and the requirement of providing effective static neutralization and elimination for the whole assembly to be torn 103 is met.
In the embodiment of the present invention, please refer to fig. 1 and fig. 2, the ionizing device for conveying positive and negative ions by air flow is any one of an ion air bar and an ion air blower, and the specific device is not limited as long as the technical requirements according to the specific process are met, and the requirement of providing effective neutralization and elimination of static electricity for the whole assembly to be torn 103 is met.
In the embodiment of the present invention, referring to fig. 1, after the to-be-torn membrane assembly 103 is torn away from the protective membrane 104, due to the existence of the membrane tearing device, the limitation that the electrostatic charge evaluation result of the to-be-torn membrane assembly 103 after tearing the protective membrane 104 in the current in-industry membrane tearing process is too small and serious distortion is solved.
In an embodiment of the present invention, referring to fig. 6, another electrostatic detection apparatus is provided, which includes a testing device i 502 with a non-contact electrostatic voltage or electrostatic field test;
the device also comprises the film tearing device;
the testing equipment 502 can complete the electrostatic charge level measurement of full-range scanning detection on the film tearing surface of the component to be attached which is attached to the film tearing device through vacuum negative pressure after the film tearing process is completed, and the static electricity eliminating device for the film tearing process in the factory attachment of the current flat panel display and touch screen products is adopted to evaluate the electrostatic charge level of the component to be torn 103 after the film tearing, so that the high static electricity generated in the film tearing process by the current relevant static electricity eliminating measures, which cannot effectively eliminate the component, can be obtained.
In the present embodiment, referring to fig. 7 and 8, the technical requirement of the film tearing mechanism 102 requires evaluation of its conductivity. FIG. 7 is a diagram showing the conductivity of the upper and lower surfaces of the tear film mechanism 102, and the test results are measured by the resistance value, which includes a test device II 701, a test electrode I702, and a pad 703; fig. 8 is a graph for verifying the volume conductivity of the film tearing mechanism 703, and the test result is measured by a resistance value, wherein 7 comprises a test device ii 701, a test electrode ii 801 for an upper resistance test, and a test electrode iii 802 for a lower resistance test.
In the embodiment of the present invention, please refer to fig. 1, the film tearing mechanism is an integrated structure or a multi-part combined structure, and the structure is mounted on the base with vacuum absorption, which is not limited as long as the following conditions are satisfied: the specific process condition requirements, feasibility of raw materials and processing schemes, and the resistance between any two points on the same surface of the upper and lower surfaces of the film tearing mechanism 102 are more than 1E11 ohm (please refer to FIG. 7, a conductivity test and verification method of the film tearing mechanism comprises a test device II 701 for evaluating the conductivity of the material, the technical requirements of the test device II 701 comprise that the resistance test range is at least 1E3-1E12 ohm, the open circuit test voltage has two test conditions of 10 +/-1V and 100 +/-10V, the test device II comprises the film tearing mechanism 102 and a test electrode I702 used for verifying the surface conductivity of the film tearing mechanism 102, the test electrode I702 has a soft electrode surface, the surface resistance of the test electrode is less than 1000 ohm, the placing backing plate 703 of the film tearing mechanism 102 in the verification and evaluation process is included, the backing plate conforming to the invention has a smooth surface, and the resistance between two points on the surface is not less than 1E12 ohm), and the volume resistance of the film tearing mechanism 702 should be greater than 1E11 ohm please refer to fig. 8, the method for testing and verifying the conductivity of the film tearing mechanism comprises a testing device ii 701 for evaluating the conductivity of the material, and the testing device ii 701 is the same as that in fig. 7; the testing electrode II 801 comprises a film tearing mechanism 102 and an upper testing electrode II 801 used for verifying the volume conductivity of the film tearing mechanism 102, wherein the testing electrode II 801 has a soft electrode surface, and the resistance between two points on the surface is less than 1000 ohms; the testing electrode III 802 is arranged below the film tearing mechanism 102 in the verification and evaluation process, the testing electrode III 802 has a soft electrode surface, the resistance between two points on the surface is less than 1000 ohms, and the total thickness of the film tearing mechanism 102 is not less than 20 mm. If process conditions are limited, tear mechanism 703 may have a total thickness of at least 10 mm.
Aiming at the problems that the static elimination measures adopted by the current related electronic factories cannot effectively eliminate high static electricity generated by components and products in the film tearing process, and further, the bad production loss of the products caused by high static electricity residue is still generated continuously; with the electrostatic protection method of the flat panel display and touch screen product peeling process in fig. 4, since the suction cup tightly attached to the component 103 to be peeled is made of metal and is connected to the ground, the ionization device 105 herein cannot effectively eliminate the high static electricity generated during the film peeling process of the component and the product, further, the product production failure loss caused by high static electricity residue still occurs continuously, and by using the method for evaluating the static electricity charging level after the film of the flat panel display and touch screen product is torn in the figure 5, because the sucking disc of the laminating subassembly 501 after the closely laminating dyestripping process is accomplished is the metal material and installed ground connection, carries out the electrostatic charge detection to it with test equipment I502 that has non-contact electrostatic voltage or electrostatic field test this moment, and the measured data that obtains can be seriously low distortion, has just also caused the very low false appearance of the electrostatic charge level of subassembly I502 after the dyestripping.
By adopting the film tearing device and the static eliminating device for the film tearing process in the flat panel display and touch screen product attaching process, as shown in fig. 1 and fig. 2, the difference between the reading obtained by the static electricity evaluation method of the attaching assembly 501 after the film tearing process for the flat panel display and touch screen product attaching process is completed in fig. 6 and the static electricity level of the attaching assembly 501 under an ideal condition is obviously smaller (the attaching assembly 501 is in an atmospheric environment in the evaluation process, no visible object exists at the adjacent position; the surface of the attaching assembly is subjected to full-range scanning measurement by using an electric field testing device I502); however, as shown in fig. 5, in the conventional film tearing device structure of the currently adopted flat panel display and touch screen product in the film tearing process of the related electronic factory, the attachment assembly 501 already has a large amount of static electricity, but the data (less than 100V/inch) obtained by the method is greatly different from the reading (more than 1000V/inch) in the method for evaluating the electrostatic charge level of the assembly to be attached 501 after the film tearing under an ideal condition (the attachment assembly 501 is in an atmospheric environment and no visible object exists in the vicinity during the evaluation process; and the surface of the attachment assembly is subjected to full-range scanning measurement by using the electric field test equipment i 502). Therefore, the invention provides accurate evaluation judgment basis for the relevant electronic factory aiming at the real effectiveness of the current static protection situation of the current lamination and film tearing process. On the other hand, the relevant electronic factory laminating and film tearing process only needs to adopt the film tearing mechanism according to the invention, and the corresponding ionization installation measures can effectively neutralize and eliminate the high static electricity generated in the film tearing process of the laminating assembly, which is mainly reflected in that: 1> if the current electrostatic protection method is adopted in the film tearing process of the film sticking and tearing process of the related electronic factory, even if the type and the installation method of ionization equipment are adjusted, high electrostatic residue of a component to be stuck after the film tearing is finished still exists (if a method for evaluating the electrostatic charge level of the sticking component 501 under an ideal condition is adopted, the reading obtained by a test is usually more than 1000V/inch); once the film tearing device provided by the invention is adopted, any ionization equipment which has the static neutralization and elimination capability is selected, the installation mode is slightly corrected, the high static residue after the film is torn on the assembly to be jointed can be effectively solved, and even if the method for evaluating the static electrification level of the peeled table jointing assembly 501 under ideal conditions is adopted, the obtained reading is very low and usually does not exceed 200V/inch. The static protection target that enough low static remains behind the subassembly dyestripping that waits to laminate can really be realized, and the high static that the back end laminating production process can effectively avoid the dyestripping process to bring remains the risk to show the relevant bad loss of static that reduces in the whole laminating process.
FIG. 9 is a first exemplary application of a static eliminating apparatus in a factory, in which a base 101 of a film tearing apparatus and a film tearing mechanism 102 according to the requirements of the present invention form a film tearing apparatus for a polarizer; the membrane tearing device comprises a membrane tearing sucker and a ionization device 105, wherein the membrane tearing device 102 is made of PEEK materials, the ionization device is structurally modified according to the requirements of the membrane tearing device, the thickness of the membrane tearing device is 20mm, vacuum holes are correspondingly formed in the membrane tearing sucker, the effective static elimination neutralization range of the ionization device 105 covers the whole surface area of the membrane tearing sucker, and the ionization device is installed on the side in the direction perpendicular to the membrane tearing direction. After the film tearing device is transformed, the temporary reject ratio of the picture lightening electric testing process after the polaroid is attached to the LCD screen is greatly reduced and is lower than 0.01 percent.
Referring to fig. 10, a second typical application case of the factory static electricity eliminating apparatus is a process of tearing off the protective film 104 on the to-be-torn film assembly 103 before attaching the scratch-resistant film on the touch screen, in which the film tearing mechanism 102 replaces a 1mm thick PCB (Printed Circuit Board) pad on the original base 101 as required, and adopts a 15mm thick insulating bakelite Board and is provided with a vacuum hole 201; the ionization equipment 105 after the installation position is adjusted, the effective static neutralization elimination range covers all areas of the touch screen on the film tearing platform, and after the film tearing process is modified, the bad static damage rate of the touch screen after the film tearing is close to 0.00%.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various modifications of the extensibility can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (7)
1. A film tearing device is characterized in that,
the film tearing mechanism is arranged on a base with vacuum adsorption;
the film component to be torn is attached to the film tearing device through vacuum negative pressure;
the resistance between two points of the upper surface and the lower surface of the film tearing mechanism is larger than 1E11 ohm, and the volume resistance of the film tearing mechanism is larger than 1E11 ohm;
the thickness of the film tearing mechanism is not less than 10 mm.
2. A film tearing apparatus according to claim 1, wherein the film tearing mechanism is of one-piece construction or of a multi-part combination.
3. A film stripping apparatus as claimed in claim 1, in which the stripping means is provided with a plurality of vacuum holes for vacuum suction on the base of the stripping means.
4. A film tearing apparatus according to claim 1, wherein the thickness of the film tearing means is not less than 20 mm.
5. An electrostatic eliminating apparatus comprising the film tearing apparatus according to any one of claims 1 to 4, and an ionizing device, wherein,
The ion outlet of the ionization equipment is attached to the film tearing device towards negative pressure, and static neutralization and elimination are carried out on the film tearing device to be torn.
6. The static eliminating apparatus according to claim 5, wherein the ionizing device is any one of an ionizing device which delivers positive and negative ions by means of an air flow and an ionizing device which does not have an air flow, wherein,
the ionization equipment for conveying positive and negative ions by virtue of air flow is any one of an ion air bar and an ion fan.
7. An electrostatic detection device is characterized in that,
the device comprises a test device I with a non-contact electrostatic voltage or electrostatic field test;
the device further comprises a film tearing device according to any one of the claims 1-4;
testing equipment I can accomplish through the vacuum negative pressure laminating and be in on the dyestripping device treat the dyestripping subassembly and tear the electrified level measurement of static that the membrane surface carries out full range scanning formula to its dyestripping surface after tearing the membrane process and accomplishing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010318272.1A CN111497423B (en) | 2020-04-21 | 2020-04-21 | Film tearing device, static eliminating device and static detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010318272.1A CN111497423B (en) | 2020-04-21 | 2020-04-21 | Film tearing device, static eliminating device and static detecting device |
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| Publication Number | Publication Date |
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| CN111497423A CN111497423A (en) | 2020-08-07 |
| CN111497423B true CN111497423B (en) | 2022-05-24 |
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| CN109177439A (en) * | 2018-11-01 | 2019-01-11 | Tcl王牌电器(惠州)有限公司 | Display screen assists dyestripping device |
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| CN102059842A (en) * | 2009-11-12 | 2011-05-18 | 南亚电路板股份有限公司 | Separation device and separation method thereof |
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| CN105655487A (en) * | 2016-01-05 | 2016-06-08 | 京东方科技集团股份有限公司 | Film tearing device and film tearing method |
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| CN111497423A (en) | 2020-08-07 |
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