CN102876251A - Preparation method of gum - Google Patents
Preparation method of gum Download PDFInfo
- Publication number
- CN102876251A CN102876251A CN201210415841XA CN201210415841A CN102876251A CN 102876251 A CN102876251 A CN 102876251A CN 201210415841X A CN201210415841X A CN 201210415841XA CN 201210415841 A CN201210415841 A CN 201210415841A CN 102876251 A CN102876251 A CN 102876251A
- Authority
- CN
- China
- Prior art keywords
- release film
- adhesive tape
- faced adhesive
- protective membrane
- double faced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000002390 adhesive tape Substances 0.000 claims abstract description 57
- 238000005520 cutting process Methods 0.000 claims abstract description 16
- 239000012528 membrane Substances 0.000 claims description 61
- 230000001681 protective effect Effects 0.000 claims description 61
- 239000002699 waste material Substances 0.000 claims description 15
- 239000011521 glass Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000011505 plaster Substances 0.000 claims description 3
- 238000004080 punching Methods 0.000 abstract description 13
- 238000000465 moulding Methods 0.000 abstract description 3
- 239000003292 glue Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Images
Landscapes
- Adhesive Tapes (AREA)
Abstract
The invention provides a gum preparation method which has the advantages that the gum is punched in one step, the preparation method is simple, the cost is low and the size accuracy of the prepared gun is high. The gum preparation method comprises the following steps of: attaching a double-faced adhesive tape onto a release film B; tearing off the self-contained release paper of the double-faced adhesive tape and attaching the double-faced adhesive tape onto a release film A; attaching a protection film C onto the release film B; punching the film by using a molding cutting die, wherein the inner frame of the cutting die cuts off the release film A and the double-faced adhesive tape, the outer frame of the cutting die cuts off the release film A, the double-faced adhesive tape and the release film B, the release film A and the double-faced adhesive tape form a cutting mark with an inner frame and an outer frame, and the release film B form a cutting mark with an outer frame; pulling off the release film A in the inner frame and attaching a protection film E, wherein the protection film E covers an area in the outer frame of the release film A; and removing the double-faced adhesive tape inside the protection film E and the inner frame, and the release film A, the double-faced adhesive tape and the release film B outside the outer frame, and attaching a protection film D onto the release film A.
Description
Technical field
The present invention relates to the preparation method of gum, specifically, make the preparation method of the hollow frame glue of the display screens uses such as liquid crystal display, touch-screen.
Background technology
Along with display screen, developing rapidly of touch-screen industry, requirement for the hollow frame glue that uses in making processes is also more and more higher, because glue is arranged around frame glue product only has, and band glue width is smaller, the waste discharge problem relatively is difficult to overcome when manufacturing, and the technique before all is to use the punching of secondary cover.The punching of so-called secondary cover arranges the pilot hole edge of a knife exactly on carry out the die-cut punching cutter of the first step, on the release film material that uses, punch out pilot hole, carry out second step when die-cut, above the second step punching cutter pilot pin is set, setting so that pilot pin is inserted in the middle of the pilot hole with fitting like a glove, guarantees that with this size of product is qualified with the die-cut identical stepping of the first step.It is ripe that this technique has been tending towards on market, but the punching of secondary cover has certain disadvantages, as: manufacturing expense is high, manpower is many, the easy deviation of size, produce foreign matter easily.
Summary of the invention
The high gum preparation method of gum dimensional precision who the purpose of this invention is to provide one-step punching forming, the preparation method is simple, cost is low, prepares.
This gum is the preparation method may further comprise the steps:
A, with release applying of double faced adhesive tape and B release film; Tear off double faced adhesive tape carry separate-type paper after, with release applying of A release film; The C protective membrane is fitted in non-release of B release film;
B, use forming knife mold die-cut on the material that posts, cutting die is towards the A release film, and the inside casing of cutting die cuts off A release film, double faced adhesive tape, and the housing of cutting die cuts off A release film, double faced adhesive tape, B release film; A release film, double faced adhesive tape form the cut channel with inside casing and housing, and the B release film forms the cut channel with housing;
C, with adhesive tape with the pulling off of the A release film in the inside casing, and applying E protective membrane, E protective membrane cover the zone in the housing of A release film;
D, get rid of following waste material: the double sticky tape in E protective membrane and the inside casing, outer A release film, double faced adhesive tape, the B release film of housing, at non-release applying D protective membrane of A release film.
The clinging power of the off-type force of A release film and B release film, C protective membrane D protective membrane satisfies following requirement: not anti-sticking phenomenon when B release film and double faced adhesive tape are peeled off above the A release film; B release film and double faced adhesive tape integral plaster are combined in above the glass substrate, when the B release film is peeled off above double faced adhesive tape, double faced adhesive tape are not taken up above glass substrate; The C protective membrane can not separate with the outer interior B release film of housing when getting rid of waste material; The A release film can be bonded in above the D protective membrane when tearing off B release film and double faced adhesive tape.
Beneficial effect of the present invention: the present invention adopts the forming knife mold one-step punching, has guaranteed the precision of the size of part between the inside casing of A release film and the housing, and with respect to existing twice cover punching, simpler.
The preparation method of above-mentioned gum, the B release film is 60g ± 5g off-type force release film; The A release film is 3-5g off-type force release film; The E protective membrane is 50g antistatic protection film.E is that clinging power is 50g antistatic protection film, the waste material of conveniently draining, and double faced adhesive tape and the A release film between inside casing and the housing can not be excluded when guarantee getting rid of waste material.
Preferably, the C protective membrane is the 40g protective membrane; The D protective membrane is the 300g protective membrane.
Description of drawings
Fig. 1 is the synoptic diagram of state after fitting.
Fig. 2 is the synoptic diagram of state behind the cross cutting.
Fig. 3 is the synoptic diagram before the 3-5g off-type force release film 31 in the inside casing is removed.
Fig. 4 is the synoptic diagram after the 3-5g off-type force release film 31 in the inside casing is removed.
Fig. 5 is the synoptic diagram behind the applying 50G antistatic protection film 5.
Fig. 6 is the synoptic diagram behind the outer 60G of double sticky tape 11, the housing in removal 50G antistatic protection film and the inside casing outer 3-5g off-type force release film 32, housing outer double faced adhesive tape 12, housing ± 5g off-type force release film 22.
Fig. 7 is the synoptic diagram behind the applying 300G protective membrane.
Among the figure, double faced adhesive tape 1,60g ± 5g off-type force release film (B release film) 2,3-5g off-type force release film (A release film) 3,40G protective membrane (C protective membrane) 4,50G antistatic protection film (E protective membrane) 5,300G protective membrane (D protective membrane) 6.
Embodiment
Specify the preparation method of Back Word type gum (frame glue) one-step punching forming waste discharge below in conjunction with accompanying drawing.
Fit: referring to Fig. 1, with release the applying of double faced adhesive tape 1 with 60g ± 5g off-type force release film (B release film) 2; Tear off double faced adhesive tape carry separate-type paper after, with release applying of 3-5g off-type force release film (A release film) 3; 40G protective membrane (C protective membrane) 4 is fitted in non-release of 60g ± 5g off-type force release film.
Cross cutting: referring to Fig. 2,3, use forming knife mold die-cut on the material that posts, cutting die is towards 3-5g off-type force release film, and the inside casing of cutting die cuts off 3-5g off-type force release film, double faced adhesive tape, and the housing of cutting die cuts off 3-5g off-type force release film, double faced adhesive tape, 60g ± 5g off-type force release film; 3-5g off-type force release film, double faced adhesive tape form the cut channel with inside casing 9 and housing 10, and 60g ± 5g off-type force release film forms the cut channel with housing 10.
Waste discharge: referring to Fig. 3,4, with the pulling off of the 3-5g off-type force release film 31 in the inside casing, and applying 50G antistatic protection film (E protective membrane) 5,50G antistatic protection film cover the zone in the housing of 3-5g off-type force release film with adhesive tape 8;
Referring to Fig. 5,6, double faced adhesive tape 12, the 60g outside the housing ± waste materials such as 5g off-type force release film 22 that the double sticky tape 11 in 50G antistatic protection film and the inside casing, housing 3-5g off-type force release film 32, housing outward is outer are got rid of.
Pad pasting: referring to Fig. 7, at non-release the applying 300G protective membrane (D protective membrane) 6 of 5G off-type force release film, then the rolling section namely obtains Back Word type gum finished product (double faced adhesive tape and A release film are the Back Word type).
C protective membrane 4 and D protective membrane 6 have played the protection product, have prevented the effect that product is infected with by dust.
When using this Back Word type gum finished product, first C protective membrane 4 is torn off from B release film 2, then B release film 2 is torn off (the A release film can be bonded on the D protective membrane and separate with double faced adhesive tape 1 with B release film 2 with the D protective membrane) with double faced adhesive tape 1 from the D protective membrane; Again double faced adhesive tape 1 is bonded on the object that needs; At last B release film 2 is torn off from double faced adhesive tape 1 and get final product.
The A release film is chosen the minimum 3-5g off-type force release film of off-type force of present making, the off-type force of B release film be 60g ± 5g(wherein the off-type force collocation of B release film and A release film guarantee that B release film and double faced adhesive tape are easy to peel off above the A release film, not anti-sticking phenomenon; And the B release film is easy to peel off above double faced adhesive tape when being combined in B release film and double faced adhesive tape integral plaster above the glass substrate, double faced adhesive tape is not taken up above glass substrate).E is that clinging power is the 50g antistatic protection film of 50g, and conveniently drain waste material and assurance product (the A release film between the double faced adhesive tape between inside casing and the housing and inside casing and the housing) can not be excluded.The C protective membrane is that clinging power is the 40g protective membrane of 40g; the C protective membrane not only can be bonded in non-release of the B release film and when getting rid of waste material the C protective membrane be not easy to separate with B release film in the housing, and when the client uses, be easy to the C protective membrane is torn off above the B release film.The D protective membrane is that clinging power is the 300g protective membrane of 300g, and it can guarantee that the A release film can be bonded in above the D protective membrane when tearing off B release film and double faced adhesive tape.
In this specification sheets, the off-type force of release film refers to the off-type force measured by the following method.
Use double sticky tape (normal operation NITTO 5000NS) to be pasted on the plane of minute surface test steel plate, binding face can not have bubble and breakage.The non-test surfaces of release film to be tested is pasted on the double sticky tape on the steel plate, and can not there be bubble and breakage in same joint place.Tesa 7475 adhesive tapes of 25mm width are affixed on to be tested of release film, use the rubber roll of 2KG, come rollback moving four times at Tesa 7475 adhesive tapes, 7475 pressure that bear are 2KG when keeping rolling herein, can not impressed pressure.Removing roller pressure placed 24 hours, then utilize computermatic peel-off device that Tesa 7475 adhesive tapes are peeled off from stainless steel plate with 180 ° of peel angle, peeling rate 300mm/min, peel off Tesa 7475 required pulling force this moment is exactly the off-type force of release film to be tested.
In this specification sheets, the clinging power of protective membrane refers to the clinging power measured by the following method.
Use 25mm width protective membrane, its surface with glue is pasted on the stainless steel plate of minute surface cleaning, and binding face can not have bubble and breakage.Use the rubber roll of 2KG, come rollback moving four times at protective membrane to be tested, the pressure that protective membrane bears when keeping rolling herein is 2KG, can not impressed pressure.Remove roller pressure and placed 24 hours, then utilize computermatic peel-off device that protective membrane is peeled off from stainless steel plate with 180 ° of peel angle, peeling rate 300mm/min, peel off the required pulling force of protective membrane this moment is exactly the clinging power of protective membrane to be tested.
A stamp waste discharge of frame glue of the present invention technique mainly is that original secondary cover punching is changed to once shaped, is implemented in fully automated waste discharge above the machine.Before the product punching molding double faced adhesive tape, release film, band material protective membrane are fitted, with inside casing, the waste materials such as housing are removed, so that frame glue product is being improved aspect cost, size and the foreign matter after punching molding.
Claims (3)
1. the preparation method of gum, it is characterized in that: it may further comprise the steps:
Release applying with double faced adhesive tape and B release film; Tear off double faced adhesive tape carry separate-type paper after, with release applying of A release film; The C protective membrane is fitted in non-release of B release film;
Use forming knife mold die-cut on the material that posts, cutting die is towards the A release film, and the inside casing of cutting die cuts off A release film, double faced adhesive tape, and the housing of cutting die cuts off A release film, double faced adhesive tape, B release film; A release film, double faced adhesive tape form the cut channel with inside casing and housing, and the B release film forms the cut channel with housing;
With the pulling off of the A release film in the inside casing, and applying E protective membrane, E protective membrane cover the zone in the housing of A release film with adhesive tape;
Get rid of following waste material: the double sticky tape in E protective membrane and the inside casing, outer A release film, double faced adhesive tape, the B release film of housing, at non-release applying D protective membrane of A release film;
The clinging power of the off-type force of A release film and B release film, C protective membrane D protective membrane satisfies following requirement: not anti-sticking phenomenon when B release film and double faced adhesive tape are peeled off above the A release film; B release film and double faced adhesive tape integral plaster are combined in above the glass substrate, when the B release film is peeled off above double faced adhesive tape, double faced adhesive tape are not taken up above glass substrate; The C protective membrane can not separate with the outer interior B release film of housing when getting rid of waste material; The A release film can be bonded in above the D protective membrane when tearing off B release film and double faced adhesive tape.
2. the preparation method of gum as claimed in claim 1 is characterized in that:
The B release film is 60g ± 5g off-type force release film; The A release film is 3-5g off-type force release film; The E protective membrane is 50g antistatic protection film.
3. the preparation method of gum as claimed in claim 2, it is characterized in that: the C protective membrane is the 40g protective membrane; The D protective membrane is the 300g protective membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210415841 CN102876251B (en) | 2012-10-26 | 2012-10-26 | Preparation method of gum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210415841 CN102876251B (en) | 2012-10-26 | 2012-10-26 | Preparation method of gum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102876251A true CN102876251A (en) | 2013-01-16 |
| CN102876251B CN102876251B (en) | 2013-09-11 |
Family
ID=47477781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210415841 Active CN102876251B (en) | 2012-10-26 | 2012-10-26 | Preparation method of gum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102876251B (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103666313A (en) * | 2013-01-18 | 2014-03-26 | 隆扬电子（昆山）有限公司 | Production process of abnormal acetate cloth tapes |
| CN104708670A (en) * | 2013-12-27 | 2015-06-17 | 周明 | Dislocation punching technology suitable for back glue product made of electronic materials |
| CN105171839A (en) * | 2015-06-04 | 2015-12-23 | 南京冠佳科技有限公司 | Masking tape die cutting production method |
| CN105216055A (en) * | 2014-11-14 | 2016-01-06 | 苏州达翔新材料有限公司 | A kind of take double faced adhesive tape as the processing technology of medium |
| CN105273646A (en) * | 2014-07-25 | 2016-01-27 | 深圳市旺鑫精密工业股份有限公司 | Back glue and production method thereof |
| CN105392278A (en) * | 2015-12-11 | 2016-03-09 | 苏州米达思精密电子有限公司 | Forming equipment for reinforcing sheet without adhesive in partial |
| CN105517326A (en) * | 2015-12-11 | 2016-04-20 | 苏州米达思精密电子有限公司 | Local non-gel reinforcing sheet formation process |
| CN105778803A (en) * | 2016-03-09 | 2016-07-20 | 深圳市智优精密制造有限公司 | Production process of mobile phone camera back adhesive |
| CN106893506A (en) * | 2017-03-23 | 2017-06-27 | 昆山威斯泰电子技术有限公司 | It is anti-to pull conducting resinl manufacture method |
| CN106976127A (en) * | 2017-03-23 | 2017-07-25 | 昆山威斯泰电子技术有限公司 | Ultra-fine double faced adhesive tape die-cutting process |
| CN107353841A (en) * | 2017-08-14 | 2017-11-17 | 东莞市哲华电子有限公司 | A kind of low cost production thereof of Mylar pieces |
| CN108003808A (en) * | 2017-12-22 | 2018-05-08 | 广州市金钟汽车零件股份有限公司 | A kind of back adhesive tape automatic assembly line and method |
| CN108127726A (en) * | 2017-12-28 | 2018-06-08 | 郑州领胜科技有限公司 | A kind of VHB glue hollow out waste discharge apparatus and waste discharge method |
| WO2018201557A1 (en) * | 2017-05-05 | 2018-11-08 | 惠州艺都影像科技有限公司 | Crystal gum |
| CN109233665A (en) * | 2018-07-05 | 2019-01-18 | 惠州恒铭达电子科技有限公司 | A kind of production method with silk-screen gum |
| CN109337600A (en) * | 2018-11-16 | 2019-02-15 | 深圳市飞荣达科技股份有限公司 | One side glue and its production method of the glue surface part without glue |
| CN110698991A (en) * | 2019-09-04 | 2020-01-17 | 深圳市锦兆电子科技股份有限公司 | Processing method of lens sheet gum product protective film |
| CN112238492A (en) * | 2019-07-19 | 2021-01-19 | 昊佰电子科技（上海）有限公司 | Waste discharge method for double-sided adhesive tape product with round hole |
| CN112895667A (en) * | 2021-01-19 | 2021-06-04 | 合肥美凯电子有限公司 | Double-sided back local adhesive punching process |
| CN114539936A (en) * | 2022-03-24 | 2022-05-27 | 东莞市钜欣电子有限公司 | Light guide plate back glue assembly capable of avoiding bubbles and production method thereof |
| CN114953038A (en) * | 2022-05-31 | 2022-08-30 | 苏州市腾鑫精密材料科技有限公司 | Pressure-discharge molding technology for light-shading component of AI camera |
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| CN101898434A (en) * | 2009-05-27 | 2010-12-01 | 比亚迪股份有限公司 | Preparation method of die-cutting product |
| CN102689327A (en) * | 2011-03-25 | 2012-09-26 | 比亚迪股份有限公司 | Die cutting preparation method of reflection strip attached with shading adhesive |
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| CN1345010A (en) * | 2000-09-26 | 2002-04-17 | 洋华光电股份有限公司 | Manufacture of touching control panel |
| CN101898434A (en) * | 2009-05-27 | 2010-12-01 | 比亚迪股份有限公司 | Preparation method of die-cutting product |
| CN201508445U (en) * | 2009-08-28 | 2010-06-16 | 比亚迪股份有限公司 | Shading black white glue structure |
| CN102689327A (en) * | 2011-03-25 | 2012-09-26 | 比亚迪股份有限公司 | Die cutting preparation method of reflection strip attached with shading adhesive |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103666313B (en) * | 2013-01-18 | 2014-12-10 | 隆扬电子（昆山）有限公司 | Production process of abnormal acetate cloth tapes |
| CN103666313A (en) * | 2013-01-18 | 2014-03-26 | 隆扬电子（昆山）有限公司 | Production process of abnormal acetate cloth tapes |
| CN104708670A (en) * | 2013-12-27 | 2015-06-17 | 周明 | Dislocation punching technology suitable for back glue product made of electronic materials |
| CN105273646A (en) * | 2014-07-25 | 2016-01-27 | 深圳市旺鑫精密工业股份有限公司 | Back glue and production method thereof |
| CN105216055B (en) * | 2014-11-14 | 2017-04-12 | 苏州达翔新材料有限公司 | Machining process with double-faced adhesive tape as medium |
| CN105216055A (en) * | 2014-11-14 | 2016-01-06 | 苏州达翔新材料有限公司 | A kind of take double faced adhesive tape as the processing technology of medium |
| CN105171839A (en) * | 2015-06-04 | 2015-12-23 | 南京冠佳科技有限公司 | Masking tape die cutting production method |
| CN105517326B (en) * | 2015-12-11 | 2018-05-15 | 苏州中拓专利运营管理有限公司 | It is a kind of local without glue reinforcing chip moulding process |
| CN105517326A (en) * | 2015-12-11 | 2016-04-20 | 苏州米达思精密电子有限公司 | Local non-gel reinforcing sheet formation process |
| CN105392278A (en) * | 2015-12-11 | 2016-03-09 | 苏州米达思精密电子有限公司 | Forming equipment for reinforcing sheet without adhesive in partial |
| CN105392278B (en) * | 2015-12-11 | 2018-05-15 | 苏州中拓专利运营管理有限公司 | It is a kind of local without glue reinforcing chip former |
| CN105778803A (en) * | 2016-03-09 | 2016-07-20 | 深圳市智优精密制造有限公司 | Production process of mobile phone camera back adhesive |
| CN106893506A (en) * | 2017-03-23 | 2017-06-27 | 昆山威斯泰电子技术有限公司 | It is anti-to pull conducting resinl manufacture method |
| CN106976127A (en) * | 2017-03-23 | 2017-07-25 | 昆山威斯泰电子技术有限公司 | Ultra-fine double faced adhesive tape die-cutting process |
| WO2018201557A1 (en) * | 2017-05-05 | 2018-11-08 | 惠州艺都影像科技有限公司 | Crystal gum |
| CN107353841A (en) * | 2017-08-14 | 2017-11-17 | 东莞市哲华电子有限公司 | A kind of low cost production thereof of Mylar pieces |
| CN108003808A (en) * | 2017-12-22 | 2018-05-08 | 广州市金钟汽车零件股份有限公司 | A kind of back adhesive tape automatic assembly line and method |
| CN108127726B (en) * | 2017-12-28 | 2023-10-03 | 郑州领胜科技有限公司 | VHB (very high-speed) glue hollowed-out waste discharge device and waste discharge method |
| CN108127726A (en) * | 2017-12-28 | 2018-06-08 | 郑州领胜科技有限公司 | A kind of VHB glue hollow out waste discharge apparatus and waste discharge method |
| CN109233665A (en) * | 2018-07-05 | 2019-01-18 | 惠州恒铭达电子科技有限公司 | A kind of production method with silk-screen gum |
| CN109337600B (en) * | 2018-11-16 | 2021-01-19 | 深圳市飞荣达科技股份有限公司 | Single-sided adhesive with adhesive surface locally free of adhesive and production method thereof |
| CN109337600A (en) * | 2018-11-16 | 2019-02-15 | 深圳市飞荣达科技股份有限公司 | One side glue and its production method of the glue surface part without glue |
| CN112238492A (en) * | 2019-07-19 | 2021-01-19 | 昊佰电子科技（上海）有限公司 | Waste discharge method for double-sided adhesive tape product with round hole |
| CN110698991A (en) * | 2019-09-04 | 2020-01-17 | 深圳市锦兆电子科技股份有限公司 | Processing method of lens sheet gum product protective film |
| CN112895667A (en) * | 2021-01-19 | 2021-06-04 | 合肥美凯电子有限公司 | Double-sided back local adhesive punching process |
| CN114539936A (en) * | 2022-03-24 | 2022-05-27 | 东莞市钜欣电子有限公司 | Light guide plate back glue assembly capable of avoiding bubbles and production method thereof |
| CN114539936B (en) * | 2022-03-24 | 2023-12-01 | 东莞市钜欣电子有限公司 | Light guide plate back adhesive assembly capable of avoiding bubbles and production method thereof |
| CN114953038A (en) * | 2022-05-31 | 2022-08-30 | 苏州市腾鑫精密材料科技有限公司 | Pressure-discharge molding technology for light-shading component of AI camera |
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| CN102876251B (en) | 2013-09-11 |
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