CN107949461A - The method for die cutting of polarizer and the blanking units for this method - Google Patents
The method for die cutting of polarizer and the blanking units for this method Download PDFInfo
- Publication number
- CN107949461A CN107949461A CN201780002934.0A CN201780002934A CN107949461A CN 107949461 A CN107949461 A CN 107949461A CN 201780002934 A CN201780002934 A CN 201780002934A CN 107949461 A CN107949461 A CN 107949461A
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- China
- Prior art keywords
- polarizer
- die
- cutting
- mentioned
- knife
- Prior art date
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Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004080 punching Methods 0.000 claims abstract description 55
- 230000007797 corrosion Effects 0.000 claims description 37
- 238000005260 corrosion Methods 0.000 claims description 37
- 230000007246 mechanism Effects 0.000 description 29
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Polarising Elements (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The present invention provides a kind of method for die cutting for the polarizer for preventing slight crack from occurring and being punched variously-shaped polarisation plate.The method for die cutting of the polarizer of the present invention includes using cutting die or engraving knife die punching polarizer is corroded and obtains the polarisation plate of predetermined shape, and the gabarit of above-mentioned polarisation plate is made of the line comprising curve.In an embodiment, relative to the total length of the line for the gabarit for forming above-mentioned polarizer, the ratio of above-mentioned curve is more than 10%.
Description
Technical field
A kind of blanking units the present invention relates to polarizer method for die cutting and for this method.
Background technology
It is known that polarizer is used in image display device etc., and apply in image display device and manufactured from large area
Polarizer cut out and with corresponding to purposes shape polarisation plate.In general, when cutting out polarisation plate using tool
The punching mechanism of standby Thomson knife.The punching mechanism for possessing Thomson knife is matched somebody with somebody in mould corresponding with the shape of polarisation plate
Put a plurality of knives and form.
On the other hand, in recent years, the purposes variation of image display device, the polarizer for the image display device
Shape is also diversified.Used for example, having in on-vehicle image display unit (such as image display device for instrument board) etc.
Polarizer (the situation of polarisation plate that gabarit is made of curve.Seek to establish the variation with polarisation sheet form described above
It is corresponding, the technology of polarizer piece is punched under no undesirable condition.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2009-56735 publications
The content of the invention
The subject that the invention solves
One of problem during as punching polarisation plate can enumerate the slight crack for preventing producing in polarizer (or polarisation plate).
Possess the punching mechanism of Thomson knife due to comprising a plurality of knives so there is the seam of knife, but the present inventor
Deng find the knife seam be above-mentioned slight crack a reason.Especially find：When punching has the polarisation plate of curve part,
If the seam of above-mentioned knife is located at curve part, the frequency that slight crack produces is high.
The present invention is completed to solve above-mentioned previous problem, and its main purpose is to provide one kind can anti-crack arrest
The generation of trace, and it is punched the method for die cutting of the polarizer of variously-shaped polarisation plate.
Means for solving the problems
The method for die cutting of the polarizer of the present invention is included using cutting die or engraving knife die punching polarizer is corroded and obtained pre-
The polarisation plate of setting shape, and exterior feature is made of the line comprising curve outside the polarisation plate.
In an embodiment, relative to the total length of the line for the gabarit for forming above-mentioned polarizer, the ratio of above-mentioned curve is
More than 10%.
In an embodiment, the gabarit of above-mentioned polarisation plate is only made of curve.
In an embodiment, above-mentioned polarisation plate is toroidal or elliptical shape.
Another aspect provides a kind of blanking units according to the present invention.The blanking units are the punchings for above-mentioned polarizer
Method blanking units, and the blanking units possess corrosion cutting die or engraving knife die.
Invention effect
One kind is capable of providing according to the present invention corrodes cutting die or engraving knife die punching polarizer by utilization, and can anti-crack arrest
The generation of trace, and it is punched the method for die cutting of the polarizer of variously-shaped polarisation plate.
Brief description of the drawings
Fig. 1 is the approximate three-dimensional map of the corrosion cutting die of the embodiment for the present invention.
Fig. 2 is the diagrammatic partial sectional view for the corrosion cutting die for illustrating the embodiment of the present invention.
Fig. 3 is the skeleton diagram of the method for die cutting for the polarizer of the invention for illustrating an embodiment.
Fig. 4 is the skeleton diagram of the method for die cutting for the polarizer of the invention for illustrating another embodiment.
Embodiment
A. the method for die cutting of polarizer
The method for die cutting of the polarizer of the present invention is included using cutting die or engraving knife die punching polarizer is corroded and obtained pre-
The polarisation plate of setting shape.So-called corrosion cutting die (so-called etching cutting die, Pinnacle Die (registration mark)) is by gold certainly
Belong to the cutting die that the corrosion knife that plate is formed using etching method is formed.So-called engraving knife die is the carving by being formed from metallic plate using cutting
The cutting die that icking tool is formed.Corrosion cutting die or engraving knife die are characterized in that jointlessly forming.In the present invention, have by utilization
Standby corrosion cutting die or engraving knife die volume punching mechanism punching polarizer, and can prevent polarizer and polarisation plate from producing slight crack
Situation occurs.Fine to deviate in seam crossing in addition, there are the seam of knife, knife in previously used Thomson cutting die, thus it is speculated that
Because of impact when being punched slight crack can be produced using the deviation as the beginning.And there are knife in the curve part of Thomson cutting die
In the case of seam, thus it is speculated that since the knife is intended to cause the deviation of knife easily to become larger towards the stress of external-open, therefore with being deposited in line part
Compared in the situation of the seam of knife, the problem of slight crack becomes notable.Hereinafter, the present patent application is illustrated as typical example to corrode cutting die
The method for die cutting of case, it will be appreciated that substituting corrosion cutting die also to obtain the present patent application case The effect of invention using engraving knife die.
Fig. 1 is the approximate three-dimensional map of the corrosion cutting die of the embodiment for the present invention.In addition, Fig. 2 is to be used for this hair
The diagrammatic partial sectional view of the corrosion cutting die of a bright embodiment.Corrosion cutting die 100 includes：Knife portion 10 and base portion 20.Knife
Punching portion 11 corresponding with the shape of polarisation plate is defined under top view in portion 10.Preferably, deposited on corrosion cutting die 100
In a plurality of punching portions 11.
It can be in the form of tabular uses, or in the form of roll uses to corrode cutting die.
The knife up (the height A of Fig. 2) of corrosion cutting die is preferably 0.3mm~10mm, more preferably 0.35mm~6mm.
The knife depth (the height B of Fig. 2) of corrosion cutting die is preferably 0.1mm~4.5mm, more preferably 0.2mm~2mm.
The thickness (the thickness C of Fig. 2) for corroding the base portion of cutting die is preferably 0.1mm~5.5mm, more preferably 0.13mm
~2mm.
The nose angle degree (the angle D of Fig. 2) of corrosion cutting die is preferably 15 °~80 °.
The Rockwell hardness HRC of corrosion cutting die is preferably 40 °~80 °, more preferably 45 °~70 °.Rockwell hardness HRC is
Obtained with being measured according to the method for JIS Z 2245.
The interval in adjacent punching portion is preferably 0.5mm~5mm, more preferably 1mm~3mm.According to the present invention, due to
It can prevent the generation of slight crack, therefore punching portion can be closely set, and can obtain to high finished product rate polarisation plate.
Fig. 3 is the skeleton diagram of the method for die cutting for the polarizer of the invention for illustrating an embodiment.In the embodiment,
Use the punching mechanism 300 that above-mentioned corrosion cutting die (flat corrosion cutting die) 100 is installed on base plate 200 and is formed.
In the embodiment, after polarizer 500 is transported to the cutting plate 400 being configured under the punching mechanism 300, by making this
Punching mechanism 300 moves downward towards polarizer 500, or cutting plate 400 is moved upward towards punching mechanism 300, makes
Corrosion cutting die 100 is connected to polarizer 500, and is punched polarizer 500, so as to obtain the polarisation plate of predetermined shape.
Fig. 4 is the skeleton diagram of the method for die cutting for the polarizer of the invention for illustrating another embodiment.In the embodiment
Middle use attaches above-mentioned corrosion cutting die 100 on the surface of the 1st roller 600 and is configured to the punching mechanism 300' of roll rotating knife.
In the embodiment, by making punching mechanism 300' be rotated together with the 2nd roller 700 for accepting corrosion cutting die, make polarizer 500 logical
Cross between the roller, polarizer 500 is punched, so as to obtain the polarisation plate 510 of predetermined shape., can be in the embodiment
The 2nd roller side configuration conveyance base material (not shown) of polarizer.1st roller and the 2nd roller volume gap and the knife up and knife depth for corroding cutting die
Degree can be adjusted to does not cut conveyance base material entirely.By adjusting as described above, and it can utilize and transport base material by polarisation plate
Transport to next step.
Polarizer for punching can be strip, or sheet.Preferably strip.In the implementation shown in Fig. 3
In form, in the case of using the polarizer of strip, a series of action is repeated, and strip polarizer is supplied totally
Punching Technology, i.e.,：After processed part is transported to cutting plate, temporarily cease conveyance and punching is made as above and adds
Work, after completing one-step punching processing, next processed part to be punched is transported to cutting plate, is carried out next punching and is added
Work.In addition, in embodiment shown in Fig. 4, if using the polarizer of strip, by making polarizer continually by together
Between rotating punching mechanism and the 2nd roller, and strip polarizer is supplied into Punching Technology totally.
Polarisation plate obtained from punching can be arbitrary proper shape.In an embodiment, the exterior feature of polarisation plate
It is made of the line comprising curve.The Thomson cutting die used since previously has the seam of knife, if being rushed with Thomson cutting die
Cut, then there is the problem of easily producing slight crack because of the seam.Especially, in the polarisation plate with curve part, if above-mentioned knife
Seam be located at curve part, then the frequency that slight crack produces is high.On the other hand, in the present invention, not only for previous rectangular-shaped
The punching of polarisation plate can prevent slight crack, and the punching for the polarisation plate with curve part is as the same.
In an embodiment, in above-mentioned polarisation plate, relative to the total length of the line for the gabarit for forming above-mentioned polarizer,
The ratio of curve is more than 10%.In an embodiment, in above-mentioned polarisation plate, relative to the outer of the above-mentioned polarizer of composition
The total length of wide line, the ratio of curve is more than 30%.In an embodiment, in above-mentioned polarisation plate, relative to composition
The total length of the line of the gabarit of above-mentioned polarizer, the ratio of curve is more than 50%.In an embodiment, in above-mentioned polarisation plate
In, relative to the total length of the line for the gabarit for forming above-mentioned polarizer, the ratio of curve is more than 70%.
In accordance with the invention it is possible to the high polarisation plate of curve ratio is punched flawlessly.
In an embodiment, the gabarit of above-mentioned polarisation plate is only made of curve.And the exterior angle Ke Bao of above-mentioned polarizer
Containing free curve.
In an embodiment, the radius of curvature of above-mentioned curve is below 900mm.In an embodiment, above-mentioned curve
Radius of curvature be below 600mm.In an embodiment, the radius of curvature of above-mentioned curve is below 300mm.Implement shape one
In state, the radius of curvature of above-mentioned curve is below 150mm.In an embodiment, the radius of curvature of above-mentioned curve for 100mm with
Under.In accordance with the invention it is possible to the polarisation plate for including the small curve of radius of curvature is punched flawlessly.
In an embodiment, above-mentioned polarisation plate is toroidal or elliptical shape.So-called toroidal is also comprising substantially
The concept of toroidal, so-called elliptical shape are the concepts for also including generally elliptical shape.
In an embodiment, in the case of above-mentioned polarizer is toroidal, the radius R of the polarizer for 900mm with
Under.In an embodiment, in the case of above-mentioned polarizer is toroidal, the radius R of the polarizer is below 600mm.
In one embodiment, in the case of above-mentioned polarizer is toroidal, the radius R of the polarizer is below 300mm.Implement one
In form, in the case of above-mentioned polarizer is toroidal, the radius R of the polarizer is below 150mm.In an embodiment
In, in the case of above-mentioned polarizer is toroidal, the radius R of the polarizer is below 100mm.In accordance with the invention it is possible to nothing
It is punched radius R small toroidal polarisation plates slight crack.
B. blanking units
The blanking units of the present invention are the devices of the punching for polarizer, which possesses corrosion cutting die or engraving
Cutting die.As corrosion cutting die or engraving knife die can be used it is A above-mentioned in the cutting die that illustrates.It is light weight especially to corrode cutting die, and
The mechanism simplification of the punching mechanism action for making to possess corrosion cutting die can be made in the blanking units of the present invention.It is and rotten
It is also favourable in terms of cost to lose cutting die.
In an embodiment, blanking units of the invention are that possess as shown in Figure 3：Punching mechanism 300, its be by
100 (or engraving knife dies) of above-mentioned corrosion cutting die (flat corrosion cutting die) are installed on base plate 200 and form；And cutting plate
400, it is oppositely disposed with punching mechanism 300, and accepts corrosion cutting die 100 (or engraving knife die) in punching.
According to the blanking units of this embodiment, after using being placed in as the polarizer of machined object on cutting plate 400,
By making punching mechanism 300 be moved downward towards cutting plate 400, or cutting plate 400 is set to be moved upward towards punching mechanism 300
It is dynamic, corrosion cutting die 100 (or engraving knife die) is connected to polarizer 500, and polarizer can be punched.As making punching mechanism
And/or the mechanism of cutting plate movement can use arbitrary appropriate mechanism.
In another embodiment, blanking units of the invention are that possess as shown in Figure 4：Punching mechanism 300', its
It is to attach above-mentioned corrosion cutting die 100 (or engraving knife die) on the surface of the 1st roller 600 and be configured to roll rotating knife；And the 2nd roller
700, it is configured close to punching mechanism 300', and accepts corrosion cutting die 100 (or engraving knife die).As will corrosion cutting die or carving
The method that icking tool mould is attached at the 1st roller, can enumerate and magnetic roller for example is used as the 1st roller, the method attached using magnetic force.As the 2nd
Resilient roller can be used in roller.
According to the blanking units of this embodiment, by making the polarizer as machined object by the together the rotating 1st
Roller 600 (that is, punching mechanism 300') and 700 Inter of the 2nd roller, and polarizer can be punched.Rotated as the 1st roller and the 2nd roller is made
Mechanism, arbitrary appropriate mechanism can be used.And the 1st roller and the 2nd Gun Inter gaps can be according to the polarizer as machined object
Thickness and the knife up of corrosion cutting die or engraving knife die be adjusted to arbitrary appropriate gap.Mechanism as adjustment gap can
Using arbitrary appropriate mechanism.
Arbitrary appropriate carrying device (such as conveyor belt, the conveyance of conveyance machined object can be combined in above-mentioned blanking units
Roller etc.) and remove arbitrary appropriate removal device of punching residue etc. after punching and use.
Embodiment
Hereinafter, the present invention is specifically described using embodiment, but the present invention is not limited by such embodiment.
[embodiment 1]
As shown in Figure 1, possess a plurality of knife portion (curve parts for including corrosion knife using in base portion (300mm × 200mm)
Radius of curvature：The length of 41mm, line part：22mm, the mutual interval in knife portion：2mm, knife depth：Cutting die punching 3mm) is inclined
Tabula rasa.In addition, the use of polarizer system comprising polarizer (Dong electrician society system " NZD-UFQAMEGQ1773VDUHC-ACJ ") and
Polarizer (the thickness of protective film (Dong electrician society system " PPF-100T ")：219μm).
The polarizer for utilizing above-mentioned cutting die to be punched is used for thermal shock test, visually the polarizer after validation test
Result be in any polarizer all not confirm the slight crack that length is more than 0.5mm from the gabarit of polarizer.
The condition of above-mentioned thermal shock test is set to circulation 100 times -40 DEG C (30 points) → 85 DEG C (30 points) → -40 DEG C
The thermal cycle of (30 points).
[comparative example 1]
Substitute corrosion knife, except using be included in knife portion of the line part there are the Thomson knife of seam in addition to, also with embodiment 1
In the same manner, namely using base portion (300mm × 200mm) possess it is a plurality of comprising the Thomson knife knife portion (curve part it
Radius of curvature：The length of 41mm, line part：22mm, the mutual interval in knife portion：2mm, knife depth：Cutting die punching 3mm) and reality
Apply the identical polarizer of example 1.
It will be used for using the polarizer of above-mentioned cutting die punching same as Example 1 experiment as a result, confirming self-bias
The gabarit of tabula rasa produces the polarizer of the slight crack of more than length 0.5mm.
[comparative example 2]
Substitute corrosion knife, except using be included in knife portion of the curve part there are the Thomson knife of seam in addition to, also with embodiment 1
In the same manner, that is, using base portion (300mm × 200mm) possess a plurality of knife portions comprising the Thomson knife (curve part
Radius of curvature：The length of 41mm, line part：22mm, the mutual interval in knife portion：2mm, knife depth：Cutting die punching 3mm) and reality
Apply the identical polarizer of example 1.
It will be used for using the polarizer of above-mentioned cutting die punching same as Example 1 experiment as a result, confirming self-bias
The gabarit of tabula rasa produces the polarizer of the slight crack of more than length 0.5mm.
Symbol description
10 knife portions
11 punching portions
20 base portions
100 corrosion cutting dies
200 base plates
300 punching mechanisms
300' punching mechanisms
400 cutting plates
500 polarizers
510 polarisation plates
600 the 1st rollers
700 the 2nd rollers
A height
B height
C thickness
D angles
Claims (5)
1. a kind of method for die cutting of polarizer, it includes obtain preboarding using cutting die or engraving knife die punching polarizer is corroded
The polarisation plate of shape,
The gabarit of the polarisation plate is made of the line comprising curve.
2. the method for die cutting of polarizer as claimed in claim 1, wherein the line relative to the gabarit that forms above-mentioned polarizer
Total length, the ratio of above-mentioned curve is more than 10%.
3. the method for die cutting of polarizer as claimed in claim 1, wherein the gabarit of above-mentioned polarisation plate is only made of curve.
4. the method for die cutting of polarizer as claimed in claim 1, wherein above-mentioned polarisation plate is toroidal or elliptical shape.
5. a kind of blanking units, it is the punching for the method for die cutting of polarizer according to any one of claims 1 to 4
Device,
The blanking units possess corrosion cutting die or engraving knife die.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-152086 | 2016-08-02 | ||
| JP2016152086A JP6742188B2 (en) | 2016-08-02 | 2016-08-02 | Method for punching polarizing plate and punching device used in the method |
| PCT/JP2017/025735 WO2018025620A1 (en) | 2016-08-02 | 2017-07-14 | Method for punching out polarizing plate, and punching device used in method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107949461A true CN107949461A (en) | 2018-04-20 |
Family
ID=61072712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780002934.0A Pending CN107949461A (en) | 2016-08-02 | 2017-07-14 | The method for die cutting of polarizer and the blanking units for this method |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6742188B2 (en) |
| KR (1) | KR102437197B1 (en) |
| CN (1) | CN107949461A (en) |
| TW (1) | TWI800488B (en) |
| WO (1) | WO2018025620A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7107734B2 (en) * | 2018-04-27 | 2022-07-27 | 住友化学株式会社 | Manufacturing method of polarizing plate |
| JP6846497B2 (en) * | 2019-02-14 | 2021-03-24 | 住友化学株式会社 | Optical laminated film with adhesive layer and its manufacturing method |
| JP6986798B1 (en) * | 2021-06-16 | 2021-12-22 | 株式会社浅野研究所 | Sheet trimming device, sheet trimming method, and sheet molded product |
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| CN1943026A (en) * | 2004-04-19 | 2007-04-04 | 琳得科株式会社 | Apparatus and method for sticking sheet |
| CN102162873A (en) * | 2010-02-23 | 2011-08-24 | 山本光学株式会社 | Circularly polarizing plate, circularly polarizing lens, and circularly polarizing glasses |
| KR20110008853U (en) * | 2010-03-11 | 2011-09-19 | 김범회 | Thomson Molding Device |
| CN102896775A (en) * | 2011-07-29 | 2013-01-30 | 日东电工株式会社 | Resin sheet, method of producing the same and through-hole forming apparatus |
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| JP2005305567A (en) * | 2004-04-19 | 2005-11-04 | Lintec Corp | Sheet cutter |
| JP5232465B2 (en) * | 2007-02-08 | 2013-07-10 | 日東電工株式会社 | Manufacturing method of long optical laminate, manufacturing method of rectangular optical laminate, and liquid crystal panel |
| JP2009056735A (en) | 2007-08-31 | 2009-03-19 | Sharp Corp | Optical film laminated body, its manufacturing method, and back light unit |
| KR20100000401A (en) * | 2008-06-24 | 2010-01-06 | 엘지디스플레이 주식회사 | Manufacturing method of display panel using the same |
| JP6872312B2 (en) * | 2015-09-30 | 2021-05-19 | 日東電工株式会社 | Method for manufacturing polarizing plate |
| JP6460537B2 (en) | 2016-08-02 | 2019-01-30 | 日東電工株式会社 | Blade mold, film punching method using the blade mold, and punching apparatus equipped with the blade mold |
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2016
- 2016-08-02 JP JP2016152086A patent/JP6742188B2/en active Active
-
2017
- 2017-07-14 WO PCT/JP2017/025735 patent/WO2018025620A1/en active Application Filing
- 2017-07-14 CN CN201780002934.0A patent/CN107949461A/en active Pending
- 2017-07-14 KR KR1020187003277A patent/KR102437197B1/en active IP Right Grant
- 2017-07-28 TW TW106125436A patent/TWI800488B/en active
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|---|---|---|---|---|
| CN1943026A (en) * | 2004-04-19 | 2007-04-04 | 琳得科株式会社 | Apparatus and method for sticking sheet |
| CN102162873A (en) * | 2010-02-23 | 2011-08-24 | 山本光学株式会社 | Circularly polarizing plate, circularly polarizing lens, and circularly polarizing glasses |
| KR20110008853U (en) * | 2010-03-11 | 2011-09-19 | 김범회 | Thomson Molding Device |
| CN102896775A (en) * | 2011-07-29 | 2013-01-30 | 日东电工株式会社 | Resin sheet, method of producing the same and through-hole forming apparatus |
| CN203317476U (en) * | 2013-03-18 | 2013-12-04 | 万诠光电科技(苏州)有限公司 | Die structure for porous reflective sheet |
| CN204997768U (en) * | 2015-07-24 | 2016-01-27 | 昆山濡鑫光电科技有限公司 | Knife mould |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI800488B (en) | 2023-05-01 |
| JP6742188B2 (en) | 2020-08-19 |
| WO2018025620A1 (en) | 2018-02-08 |
| TW201805139A (en) | 2018-02-16 |
| KR20190029499A (en) | 2019-03-20 |
| KR102437197B1 (en) | 2022-08-26 |
| JP2018021995A (en) | 2018-02-08 |
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Application publication date: 20180420 |