CN114237428A - Back protection laser process for touch screen sensor - Google Patents
Back protection laser process for touch screen sensor Download PDFInfo
- Publication number
- CN114237428A CN114237428A CN202210183524.3A CN202210183524A CN114237428A CN 114237428 A CN114237428 A CN 114237428A CN 202210183524 A CN202210183524 A CN 202210183524A CN 114237428 A CN114237428 A CN 114237428A
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- China
- Prior art keywords
- laser
- touch screen
- screen sensor
- back protection
- touch
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Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000010586 diagram Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 7
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000001012 protector Effects 0.000 description 10
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229910052705 radium Inorganic materials 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Laser Beam Processing (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention relates to the field of touch display, in particular to a back protection laser process of a touch screen sensor, which mainly comprises the following steps: designing a laser drawing file, adjusting laser parameters of a laser machine, performing laser and removing a back protection residual part. According to the back protection laser process of the touch screen sensor, the back protection of the touch screen sensor is firstly subjected to laser before the touch screen sensor is manufactured and molded, the yield loss caused by the fact that the attaching process is increased and the back protection is replaced is solved, the attaching process is reduced, the operation efficiency is improved, the cost is saved, and the product competitiveness is improved. And this back of body of touch-sensitive screen sensor protects radium-shine technology, can avoid radium-shine energy fluctuation to cause the circuit damage to touch-sensitive screen sensor product simultaneously, can not influence touch-sensitive screen sensor product function, the feasibility is high, can be used to the volume production, reduces product cost, improves the competitiveness of product.
Description
Technical Field
The invention relates to the field of touch display, in particular to a laser process for back protection of a touch screen sensor.
Background
With the rapid development of the 5G technology and the Internet, the whole society enters a deeper data era. The internet is a huge revolution from the internet to the internet of things, and a plurality of emerging technologies and industries represented by AR/VR, automatic driving, industrial internet and smart cities are rapidly developed, and the touch screen plays an important role in the technology and the industries. Touch screens include touch schemes such as infrared, resistive, capacitive, surface acoustic wave, etc., with capacitive touch screens being the best human-machine interaction touch solution.
However, as the touch terminal is continuously upgraded, the user not only focuses on smooth touch experience effect, but also puts forward higher requirements on the appearance of touch terminal products or equipment, and the narrow border design appearance of the touch screen is more attractive, so that the touch screen popular in the current market has more narrow border designs, which relates to the replacement of the back protector of the touch screen, so that the size of the new back protector after replacement is close to the size of the AA area (i.e. the operation area) of the touch screen, the sideline area of the touch screen is exposed, foam adhesive is conveniently pasted, and the situation that the touch screen is polluted or scratched by tearing off the back protector in advance is avoided, and the visual appearance effect of the whole terminal is influenced.
The traditional method is that the original touch screen back protector is removed, and a new back protector with the size close to the AA area is attached to the lower surface of the touch screen (such as Bottom Film, namely the lower surface of a lower conductive Film layer), so that one attaching process is needed, and in the attaching process, the problems of folding, foreign matter pad damage, substrate scratching, attaching deviation and the like are easily caused, one attaching process is added, so that the material cost is increased, and particularly for medium-size and large-size touch screen products, the medium-size and large-size back protectors are replaced and one attaching process is added, so that the labor cost is relatively high; the yield loss and the like are also involved, so that the resource waste is caused, and the product competitiveness is reduced under the increasingly severe market environment.
Disclosure of Invention
In order to solve the problems, the invention provides a back protection laser process of a touch screen sensor, which is characterized in that before the touch screen sensor is manufactured and molded, a Bottom Film of the touch screen sensor, namely the back protection of the lower surface of a lower conductive Film layer, is subjected to laser.
Specifically, the invention provides a back protection laser process of a touch screen sensor, which mainly comprises the following two steps:
the method comprises the following steps: designing a laser drawing file;
step two: adjusting laser parameters of a laser machine to carry out laser;
step three: removing the residual part of the back protection;
the laser diagram file in the first step is positioned at the outer edge of the operable area of the touch screen sensor and comprises a laser diagram file starting point, a laser diagram file end point and a laser line area, the laser diagram file starting point is arranged at the outer edge of the touch screen sensor, the laser diagram file end point is arranged on a laser line area intersection point close to the laser diagram file starting point, and the laser line area passes through the position of the touch screen sensor in the width direction of the lap joint block. The reason is that energy fluctuation may exist in the operation process of the laser machine, which easily causes the point breakdown of individual positions to cause open circuit of the outgoing lines of the lap joint blocks, thereby causing the poor function of the touch screen sensor product. The laser line area is designed at the width direction position of the lap joint block of the touch screen sensor, the outgoing line area of the lap joint block of the side line area can be effectively avoided, even if the laser machine has energy fluctuation of individual points, the laser machine can be punctured on the lap joint block, the lap joint block is far larger than the point-shaped puncture position, the function and the appearance of the touch screen sensor product cannot be influenced, and the laser parameters in the step two include (but are not limited to) cutting speed, laser power, laser frequency, air source pressure parameters and the like.
In some preferred embodiments, the laser line region passes through the center position of the width direction of the lapping block of the touch screen sensor.
In some specific embodiments, the laser image file starting point and the laser image file end point are located on one side far away from the PIN of the touch screen sensor and the outgoing line of the lap joint block. The starting point of the laser image file is located at 1-2 mm of the outer side of the touch screen sensor, and the end point of the laser image file is located at the intersection point of the laser ray areas close to the starting point.
In some preferred embodiments, the material of the touch screen sensor back protector is poly terephthalic acid, polycarbonate or polymethyl methacrylate. In some specific embodiments, the material of the touch screen sensor back protector is polyethylene terephthalate.
In some preferred embodiments, the cutting speed of the laser in the second step is 60 ± 10 mm/s.
In some preferred embodiments, the power of the laser in the second step is 25 ± 5W.
In some preferred embodiments, the frequency of the laser in the second step is 220 ± 50 KHz.
In some preferred embodiments, the air source pressure parameter of the laser in the second step is 0.6 to 0.8 Mpa.
In some preferred embodiments, in order to prevent the bottom layer of the touch screen sensor product from being scratched, a layer of planar film material can be attached to the cavity of the laser machine, and the planar film material is distributed in the vacuum channel, so that the bottom layer of the touch screen sensor product is not scratched, vacuum adsorption can be started when the laser machine works, and the laser platform in the cavity of the touch screen sensor product is flat and free of warping.
After laser, the back protection of the touch screen sensor product is in a semi-transparent state, and the back protection of the touch screen sensor product is adhered to the laser line at the starting point of the laser drawing file by using the easy-to-tear adhesive, so that the residual part of the back protection of the touch screen sensor can be easily torn off.
According to the back protection laser process of the touch screen sensor, the back protection of the touch screen sensor is firstly subjected to laser before the touch screen sensor is formed, the yield loss caused by the fact that the attaching process is increased and the back protection is replaced is solved, the attaching process is reduced, the operation efficiency is improved, the cost is saved, and the product competitiveness is improved. And this back of body of touch-sensitive screen sensor protects radium-shine technology, can avoid radium-shine energy fluctuation to cause the circuit damage to touch-sensitive screen sensor product simultaneously, can not influence touch-sensitive screen sensor product function, the feasibility is high, can be used to the volume production, reduces product cost, improves the competitiveness of product.
Drawings
FIG. 1 is a back view of a touch screen sensor;
FIG. 2 is a schematic diagram of a back protection remnant of a touch screen sensor;
FIG. 3 is an enlarged, partial schematic view of a touch screen sensor;
in the figure: 10-touch screen sensor, 11-back protection residual part, 20-radium ray area, 30-easy-to-tear paste, 101-lapping block outgoing line, 102-lapping block, 103-operable area, 104-operable area edge line, 105-PIN foot, 201-laser drawing file starting point and 202-laser drawing file end point.
Detailed Description
In order to make the present invention better understood by those skilled in the art, 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 the described embodiments are only a part of the embodiments of the present invention, but 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.
Referring to fig. 1, 2 and 3, the present invention provides a back protection laser process for a touch screen sensor, which comprises the following steps:
the method comprises the following steps: designing a laser drawing file;
step two: adjusting laser parameters of a laser machine to carry out laser;
step three: removing the back protection residual part 11;
the laser graph file in the first step is located on the outer edge of the operable area 103 of the touch screen sensor and comprises a laser graph file starting point 201, a laser graph file end point 202 and a laser line area 20, the laser graph file starting point 201 is arranged on the outer edge of the touch screen sensor by 1-2 mm, the laser graph file end point 202 is arranged on an intersection point of the laser line area 20 close to the laser graph file starting point 201, and the laser line area 20 can effectively avoid an outgoing line 101 area of the lap joint block on the center position of the lap joint block 102 of the touch screen sensor in the width direction.
In the embodiment, the laser drawing file is located outside the operable area 103, and the edge line 104 of the operable area is extended by 0.1-0.3 mm.
The material of the touch screen sensor back protection in this embodiment is poly terephthalic acid.
In this embodiment, in order to prevent the bottom layer of the touch screen sensor 10 product from being scratched, a layer of planar film is attached to the cavity, and vacuum channels are distributed on the planar film, so that the bottom layer of the touch screen sensor 10 product is not scratched, vacuum adsorption is started when a laser machine works, and a laser platform in the cavity of the touch screen sensor 10 product is flat and free of warping.
In this embodiment, the parameter ranges of the laser machine are as follows: the cutting speed is 60 +/-10 mm/s, the power is 25 +/-5W, the frequency is 220 +/-50 KHz, and the air source pressure parameter is 0.6-0.8 MPa.
After laser, the back protector is in a semi-transparent state, and the easy-to-tear sticker 30 is stuck to the laser ray area 20 of the starting point 201 of the laser image file, so that the edge area part (namely the back protector residual part 11) outside the operable area 103 of the touch screen sensor can be easily torn off.
The back protection laser process of the touch screen sensor is high in feasibility, can be used for mass production, reduces the product cost, and can improve the competitiveness of products. And the back protection laser process of the touch screen sensor can avoid the laser energy fluctuation from causing line damage to the touch screen sensor 10 product, does not influence the function of the touch screen sensor 10 product, is especially suitable for medium and large-size (more than or equal to 21 inches) capacitive touch screens, and has important significance.
The above-mentioned embodiments are described in more detail, but the invention is not to be construed as being limited to the scope of the invention. It should be noted that, for those skilled in the relevant art, various changes and modifications can be made without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (7)
1. A back protection laser process for a touch screen sensor is characterized by comprising the following steps:
the method comprises the following steps: designing a laser drawing file;
step two: adjusting laser parameters of a laser machine to carry out laser;
step three: removing the residual part of the back protection;
the laser diagram file in the first step is located on the outer edge of an operable area (103) of the touch screen sensor and comprises a laser diagram file starting point (201), a laser diagram file end point (202) and a laser ray area (20), the laser diagram file starting point (201) is arranged on the outer edge of the touch screen sensor, the laser diagram file end point (202) is arranged on an intersection point of the laser ray area (20) close to the laser diagram file starting point (201), the laser ray area (20) passes through the width direction position of a lap joint block (102) of the touch screen sensor, and the laser parameters in the second step comprise cutting speed, laser power, laser frequency and gas source pressure parameters.
2. The process of claim 1, wherein the material of the back cover of the touch screen sensor is selected from the group consisting of poly (terephthalic acid), polycarbonate, and poly (methyl methacrylate).
3. The touch screen sensor back protection laser process according to claim 1, wherein the laser line area (20) passes through a central position in a width direction of a lap joint block (102) of the touch screen sensor.
4. The touch screen sensor back protection laser process of claim 1, wherein the cutting speed of the laser in the second step is 60 ± 10 mm/s.
5. The touch screen sensor back protection laser process of claim 1, wherein the power of the laser in the second step is 25 ± 5W.
6. The touch screen sensor back protection laser process of claim 1, wherein the frequency of the laser in the second step is 220 ± 50 KHz.
7. The back protection laser process of the touch screen sensor according to claim 1, wherein the gas source pressure parameter of the laser in the second step is 0.6-0.8 Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210183524.3A CN114237428A (en) | 2022-02-28 | 2022-02-28 | Back protection laser process for touch screen sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210183524.3A CN114237428A (en) | 2022-02-28 | 2022-02-28 | Back protection laser process for touch screen sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114237428A true CN114237428A (en) | 2022-03-25 |
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ID=80748237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210183524.3A Pending CN114237428A (en) | 2022-02-28 | 2022-02-28 | Back protection laser process for touch screen sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114237428A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204076383U (en) * | 2014-07-03 | 2015-01-07 | 苏州京通光电科技有限公司 | A kind of rupture pressure disc cutting tool |
| CN204415839U (en) * | 2014-12-23 | 2015-06-24 | 通达五金(深圳)有限公司 | Automatic film applicator |
| CN204496466U (en) * | 2015-04-10 | 2015-07-22 | 信利光电股份有限公司 | A kind of interactive electronic apparatus and touch-screen thereof |
| CN106458339A (en) * | 2015-08-26 | 2017-02-22 | 信利光电股份有限公司 | Method for laminating film on whole screen |
| CN206316556U (en) * | 2016-12-05 | 2017-07-11 | 烟台正海科技股份有限公司 | A kind of radium-shine map file of touch-screen |
| CN111993661A (en) * | 2020-08-25 | 2020-11-27 | 烟台正海科技股份有限公司 | Laminating forming method of explosion-proof film for touch screen |
-
2022
- 2022-02-28 CN CN202210183524.3A patent/CN114237428A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204076383U (en) * | 2014-07-03 | 2015-01-07 | 苏州京通光电科技有限公司 | A kind of rupture pressure disc cutting tool |
| CN204415839U (en) * | 2014-12-23 | 2015-06-24 | 通达五金(深圳)有限公司 | Automatic film applicator |
| CN204496466U (en) * | 2015-04-10 | 2015-07-22 | 信利光电股份有限公司 | A kind of interactive electronic apparatus and touch-screen thereof |
| CN106458339A (en) * | 2015-08-26 | 2017-02-22 | 信利光电股份有限公司 | Method for laminating film on whole screen |
| CN206316556U (en) * | 2016-12-05 | 2017-07-11 | 烟台正海科技股份有限公司 | A kind of radium-shine map file of touch-screen |
| CN111993661A (en) * | 2020-08-25 | 2020-11-27 | 烟台正海科技股份有限公司 | Laminating forming method of explosion-proof film for touch screen |
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| PB01 | Publication | ||
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Application publication date: 20220325 |