KR20160032778A - Adhesive composition for touch screen panel, adhesive film and touch screen panel - Google Patents
Adhesive composition for touch screen panel, adhesive film and touch screen panel Download PDFInfo
- Publication number
- KR20160032778A KR20160032778A KR1020140122865A KR20140122865A KR20160032778A KR 20160032778 A KR20160032778 A KR 20160032778A KR 1020140122865 A KR1020140122865 A KR 1020140122865A KR 20140122865 A KR20140122865 A KR 20140122865A KR 20160032778 A KR20160032778 A KR 20160032778A
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- meth
- acrylate
- touch screen
- screen panel
- sensitive adhesive
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
-
- 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
Abstract
(Meth) acrylate monomer and a crosslinkable monomer, wherein the crosslinkable monomer is a (meth) acrylate having a substituent of a C3-C10 hydroxyalkyl group, and the photocurable acrylic copolymer resin is a Wherein the sum of the content of the crosslinkable monomer in the total monomers constituting the crosslinking monomer is 10 to 25% by weight.
Description
To an adhesive composition for a touch screen panel, an adhesive film, and a touch screen panel.
2. Description of the Related Art In recent years, electronic devices such as a PDA, a mobile communication terminal, or a navigation system for a vehicle have formed a large market. In such electronic devices, the technical goals pursued are mainly thinning, lightening, low power consumption, high resolution and high brightness.
On the other hand, a transparent conductive plastic film is used as an electronic device provided with a touch screen or a touch panel switch on the input operation section for lightening and preventing breakage. An example of such a film is a film made of a polyethylene terephthalate (PET) film as a substrate, and a conductive layer such as indium tin oxide (ITO) is formed on one surface of the film. Glass, a reinforcing material or a deco film.
The pressure-sensitive adhesive layer is required to have various properties such as touch sensitivity and durability.
One embodiment of the present invention provides a pressure-sensitive adhesive composition for a touch screen panel which is excellent in touch sensitivity and can suppress the whitening phenomenon problem.
Another embodiment of the present invention provides an adhesive film produced from the adhesive composition for the touch screen panel.
Another embodiment of the present invention provides a touch screen panel to which an adhesive film produced from the pressure sensitive adhesive composition for a touch screen panel is applied.
In one embodiment of the present invention, a photopolymerizable acrylic copolymer resin of a (meth) acrylic ester monomer and a crosslinkable monomer, wherein the crosslinkable monomer is a (meth) acrylate having a substituent of a C3-C10 hydroxyalkyl group And the sum of the content of the crosslinkable monomer in the total monomer constituting the photo-curable acrylic copolymer resin is 10 to 25% by weight.
The crosslinkable monomer may specifically include hydroxypropyl (meth) acrylate, hydroxybutyl (meth) acrylate, or both.
The pressure-sensitive adhesive composition for a touch screen panel may have a hydroxyl value of 60 to 100 mg KOH / g.
The alkyl (meth) acrylate monomer may be alkyl (meth) acrylate, and the alkyl (meth) acrylate alkyl may be linear or branched C1-C30 alkyl.
In one embodiment, the alkyl of the alkyl (meth) acrylate may be a linear or branched C6-C18 alkyl.
The (meth) acrylic acid ester monomer may be selected from the group consisting of methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isopropyl (meth) acrylate, Butyl (meth) acrylate, sec-butyl (meth) acrylate, pentyl (meth) acrylate, 2-ethylhexyl (Meth) acrylate, isobonyl (meth) acrylate, isononyl (meth) acrylate, and combinations thereof.
The crosslinkable monomer may further include a nitrogen-containing monomer.
In another embodiment, the crosslinking monomer does not include hydroxyethyl (meth) acrylate.
The pressure-sensitive adhesive composition for a touch screen panel may further include a photoinitiator.
The photoinitiator may include one selected from the group consisting of a benzoin-based initiator, a hydroxyketone-based initiator, an aminoketone-based initiator caprolactam, and combinations thereof.
In another embodiment of the present invention, there is provided an adhesive film comprising a pressure-sensitive adhesive layer containing a photo-cured product of the pressure-sensitive adhesive composition for a touch screen panel.
The dielectric constant k value measured at a frequency of 100 kHz of the adhesive film may be 3.0 or less.
In another embodiment of the present invention, a conductive plastic film layer having a conductive layer on one side thereof; The adhesive film laminated on the conductive layer; And a cover window layer laminated on the adhesive film.
The conductive plastic film may be a polyethylene terephthalate film having a conductive metal oxide layer formed on one surface thereof.
The cover window may be a transparent glass replacement plastic film or tempered glass.
The pressure sensitive adhesive film prepared from the pressure sensitive adhesive composition for a touch screen panel has a very high sensitivity to touch while suppressing the whitish phenomenon.
1 is a schematic cross-sectional view of a touch screen panel according to an embodiment of the present invention.
Hereinafter, embodiments of the present invention will be described in detail. However, the present invention is not limited thereto, and the present invention is only defined by the scope of the following claims.
(Meth) acrylate monomer of the present invention and a photocurable acrylic copolymer resin of a crosslinkable monomer, wherein the crosslinkable monomer is a (meth) acrylate having a substituent of a C3-C10 hydroxyalkyl group, and the photocurable acrylic Wherein the sum of the content of the crosslinkable monomer in the total monomers constituting the copolymer resin is about 10 to about 25 wt%.
A pressure sensitive adhesive film used as a bonding medium for bonding a conductive plastic film layer having a conductive layer on one side thereof and a cover window layer in manufacturing a touch screen panel of a display device such as a mobile phone, a tablet PC, .
The pressure-sensitive adhesive composition for a touch screen panel is formed into a pressure-sensitive adhesive film by photo-curing the photocurable acrylic copolymer resin. The pressure-sensitive adhesive film is optically transparent and applicable to a touch screen panel and has a low dielectric constant. Such a low dielectric constant adhesive film is useful for application to a touch screen panel due to increased sensitivity to touch. In addition, the pressure-sensitive adhesive film can achieve a low dielectric constant while suppressing the occurrence of cloudiness.
The (meth) acrylic acid ester monomer may be, for example, alkyl (meth) acrylate, but is not limited thereto. The alkyl of the alkyl (meth) acrylate may be linear or branched C1-C30 alkyl, specifically C6-C18 alkyl. The alkyl (meth) acrylate having a relatively long alkyl chain in the carbon number range described above can effectively lower the dielectric constant of the pressure-sensitive adhesive film produced from the pressure-sensitive adhesive composition for a touch screen panel.
Specific examples of the (meth) acrylate monomer include methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isopropyl (meth) acrylate, (Meth) acrylate, 2-ethylbutyl (meth) acrylate, sec-butyl (meth) acrylate, pentyl (Meth) acrylate, isooctyl (meth) acrylate, isobonyl (meth) acrylate, isononyl (meth) acrylate, and combinations thereof.
The above-mentioned crosslinkable monomer means a monomer further comprising functional functional groups as well as a copolymerizable functional group (for example, carbon-carbon double bond) in the molecular structure.
The content of the crosslinkable monomer may be adjusted so that the hydroxy group is contained at an appropriate content ratio in the pressure-sensitive adhesive composition. For example, when the number of carbon atoms of the hydroxyalkyl group in the crosslinking monomer is increased, the proportion of the hydroxyl group in the pressure-sensitive adhesive composition is relatively low, so that the content of the crosslinking monomer can be increased.
In one embodiment, the photocurable acrylic copolymer resin may be a polymerized monomer component composed of 100 parts by weight of a (meth) acrylate monomer and about 10 to about 25 parts by weight of a crosslinkable monomer, and in another embodiment, The methacrylic copolymer resin may be a polymer obtained by polymerizing a monomer component composed of 100 parts by weight of a (meth) acrylate monomer and about 10 to about 15 parts by weight of a crosslinkable monomer.
The crosslinkable monomer may be, for example, hydroxypropyl (meth) acrylate or hydroxybutyl (meth) acrylate, or a combination thereof.
The pressure-sensitive adhesive composition has a high electron affinity and a polarity-containing hydroxyalkyl group-containing crosslinking monomer in an appropriate amount to reduce the relative content of hydroxy groups in the composition, thereby suppressing the whitening phenomenon of the pressure-sensitive adhesive film prepared from the composition And (meth) acrylic acid ester monomers substituted with an alkyl group having a higher number of carbon atoms can be copolymerized together to lower the dielectric constant.
In the pressure-sensitive adhesive composition, the sum of the content of the crosslinkable monomer in the total monomers constituting the photocurable acrylic copolymer resin is made to be about 10 to about 25% by weight, so that excellent whitening phenomenon can be realized .
The crosslinkable monomer may further include at least one monomer selected from the group consisting of 2-isocyanatoethyl (meth) acrylate, 3-isocyanatopropyl (meth) acrylate, 4-isocyanatobutyl Amide, N-vinylpyrrolidone, N-vinylcaprolactam, and the like.
The pressure-sensitive adhesive composition for a touch screen panel includes the photocurable acrylic copolymer resin in which the crosslinkable monomer is copolymerized, so that the whitening phenomenon can be suppressed while lowering the content of the hydroxyl group in the whole composition. For example, the pressure sensitive adhesive composition for a touch screen panel may have a hydroxyl value of from about 60 to about 100 mg KOH / g.
As described above, the pressure-sensitive adhesive composition for a touch screen panel may be manufactured to have a low dielectric constant. Specifically, the dielectric constant k value measured at a frequency of 100 kHz may be 3.0 or less. The adhesive film produced from the pressure-sensitive adhesive composition for a touch screen panel having a dielectric constant in the above range is excellent in touch sensitivity.
As described above, the pressure-sensitive adhesive composition for a touch screen panel can suppress the whitening phenomenon while lowering the dielectric constant by lowering the relative content of the hydroxy group in the composition (for example, it can be evaluated as an aquatic line).
In one embodiment, the crosslinking monomer is comprised of a monomer selected from the group consisting of hydroxypropyl (meth) acrylate, hydroxybutyl (meth) acrylate, and combinations thereof, and hydroxyethyl (meth) do not include.
The pressure-sensitive adhesive composition for a touch screen panel may further comprise a photoinitiator to control the degree of polymerization as a photo-curable composition. The photoinitiator may be used in an amount of about 0.01 to about 10 parts by weight based on 100 parts by weight of the photo-curable acrylic copolymer resin. If the photoinitiator is capable of initiating polymerization by generating radicals by light irradiation, But are not limited to, for example, one selected from the group consisting of a benzoin-based initiator, a hydroxyketone-based initiator, an amino ketone-based initiator caprolactam, and combinations thereof.
In addition, the pressure-sensitive adhesive composition for a touch screen panel may comprise an epoxy resin, a crosslinking agent, a UV stabilizer, an antioxidant, a colorant, a reinforcing agent, a filler, a defoamer, a surfactant, a plasticizer and a combination thereof Lt; RTI ID = 0.0 > additive < / RTI >
In another embodiment of the present invention, there is provided an adhesive film comprising a pressure-sensitive adhesive layer comprising a photo-cured product of the pressure-sensitive adhesive composition for a touch screen panel.
The pressure-sensitive adhesive composition for a touch screen panel may be coated on a substrate layer and then cured by light irradiation to produce an adhesive film. The term "light irradiation" means irradiation of an electromagnetic wave that can cause polymerization reaction by affecting a photoinitiator or a polymerizable compound. In the above, electromagnetic waves include microwave, infrared ray, ultraviolet ray, X- A particle beam such as a proton beam, a neutron beam, and an electron beam is generally used.
The method of photocuring the pressure-sensitive adhesive composition for a touch screen panel to produce the pressure-sensitive adhesive film is not particularly limited. For example, the pressure-sensitive adhesive film can be prepared by coating the above-described composition for a touch screen panel or a coating solution prepared by adding a solvent thereto to a suitable process substrate by a known means such as a bar coater and then curing .
The curing process may be carried out after sufficiently removing the bubble generating component such as volatile components or reaction residues contained in the pressure-sensitive adhesive composition or the coating solution to appropriately impart crosslinking density, molecular weight, and elastic modulus of the cured product, It is possible to prevent the problem that the bubbles existing at the adhesive interface become large and form a scattering body therein.
The pressure-sensitive adhesive composition for a touch screen panel or a method for curing the coating solution is not particularly limited. For example, the pressure-sensitive adhesive composition for a touch panel or the coating layer formed by the coating solution may be irradiated with ultraviolet light, aging, and the like.
The photo-curing can be performed, for example, by UV irradiation.
The UV irradiation carried out for photocuring can be carried out for about 10 seconds to about 15 seconds with a metal halide lamp, which is a commonly used metal halide lamp.
The amount of the UV light is preferably about 0.5 J / cm 2 to about 2.0 J / cm 2 , and more preferably about 1.0 J / cm 2 to about 1.5 J / cm 2 .
The adhesive film 12 may have a thickness of about 50 탆 to about 300 탆, specifically about 100 탆 to about 200 탆. The adhesive film can be applied to a thin touch panel or a touch screen with a thickness in the above range, and an adhesive film having excellent durability can be realized.
In another embodiment of the present invention, a conductive plastic film layer having a conductive layer on one side thereof; The adhesive film laminated on the conductive layer; And a cover window layer laminated on the adhesive film.
The cover window layer may be a transparent glass alternative plastic film developed as a material that can replace tempered glass or tempered glass. In the case of the above glass replacement plastic film, various functionalities may be imparted to each layer by a multilayer structure.
1 is a schematic cross-sectional view of the
1, the
The
A specific kind of the conductive plastic film 130 is not particularly limited, and a known conductive film in this field can be used. For example, the conductive film 130 may be a transparent plastic film having an ITO electrode layer as a conductive layer 132 on one side. Specifically, as the transparent plastic film forming the
Hereinafter, examples and comparative examples of the present invention will be described. The following embodiments are only examples of the present invention, and the present invention is not limited to the following embodiments.
( Example )
Example One
85 parts by weight of ethylhexyl acrylate and 15 parts by weight of hydroxypropyl acrylate as a crosslinkable monomer were placed in a 1 liter glass reactor and thermally polymerized to obtain a photocurable acrylic copolymer resin syrup having a viscosity of 35 cP. The calculated value of the calculated value of the hydroxyl value for the photocurable acrylic copolymer resin syrup is 62 mg KOH / g. To 100 parts by weight (solids basis) of the obtained photocurable acrylic copolymer resin, 0.5 part by weight of a, a-methoxy-a-hydroxyacetophenone (Igacure 651, manufactured by Ciba) as a photoinitiator, 1,6-hexanediol di Acrylate (HDDA) were mixed and sufficiently stirred to prepare a pressure-sensitive adhesive composition. Subsequently, the pressure-sensitive adhesive composition was formed into a film having a thickness of 100 탆 and photo-cured to produce a pressure-sensitive adhesive film as a cured film.
Example 2
An adhesive film was prepared in the same manner as in Example 1, except that 80 parts by weight of ethylhexyl acrylate and 20 parts by weight of hydroxypropyl acrylate as a crosslinkable monomer were used to prepare a photo-curable acrylic copolymer resin. The acid value of the photo-curable acrylic copolymer resin prepared above is 83 mg KOH / g.
Comparative Example One
An adhesive film was prepared in the same manner as in Example 1, except that 85 parts by weight of ethylhexyl acrylate and 15 parts by weight of hydroxyethyl acrylate as a crosslinkable monomer were used to prepare a photo-curable acrylic copolymer resin. The prepared photo-curable acrylic copolymer resin had an acid value of 72 mg KOH / g.
Comparative Example 2
A pressure-sensitive adhesive film was prepared in the same manner as in Example 1 except that 80 parts by weight of ethylhexyl acrylate and 20 parts by weight of hydroxyethyl acrylate as a crosslinkable monomer were used to prepare a photo-curable acrylic copolymer resin. The prepared photo-curable acrylic copolymer resin has an acid value of 96 mg KOH / g.
evaluation
Experimental Example 1: dielectric constant evaluation
The electrodes were brought into contact with both surfaces of the pressure-sensitive adhesive films prepared in Examples 1-2 and 1-2 according to the following conditions and the dielectric constant k was measured.
Instrument: Agilent Technologies E4980A LCR meter
Test Frequencies: 20 Hz - 2 MHz
Electrode diameter: 5 mm
Experimental Example 2: Cloudiness Evaluation
The laminated structure of glass / adhesive film / glass was prepared using the adhesive films prepared in Example 1-2 and Comparative Example 1-2, and then left in a thermo-hygrostat (85 ° C / 85% RH) for 3 days. The results of the evaluation are shown in Table 1 below.
(@ 100kHz)
As can be seen from the above Table 1, it can be confirmed that the whitening phenomenon does not occur by using an appropriate amount of the OH-containing crosslinkable monomer as in Example 1-2, Had a low carbon number of the hydroxyalkyl group and a high dielectric constant. On the other hand, all of the adhesive films of Example 1-2 exhibited a low dielectric constant while suppressing the whitening phenomenon.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, And falls within the scope of the invention.
100: Touch screen panel
110: Adhesive film
130: Conductive plastic film
131: plastic substrate layer
132: conductive layer
150: Cover window layer
160: transparent substrate
170: Liquid crystal display (LCD)
Claims (15)
The crosslinkable monomer may be selected from the group consisting of hydroxypropyl (meth) acrylate, hydroxybutyl (meth) acrylate,
A pressure sensitive adhesive composition for a touch screen panel.
The pressure-sensitive adhesive composition for a touch screen panel has a hydroxyl value of 60 to 100 mg KOH / g
A pressure sensitive adhesive composition for a touch screen panel.
Wherein the alkyl (meth) acrylate monomer is an alkyl (meth) acrylate and the alkyl (meth) acrylate is a linear or branched C1-C30 alkyl
A pressure sensitive adhesive composition for a touch screen panel.
The alkyl of the alkyl (meth) acrylate is a linear or branched C6-C18 alkyl
A pressure sensitive adhesive composition for a touch screen panel.
The (meth) acrylic acid ester monomer may be selected from the group consisting of methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isopropyl (meth) acrylate, Butyl (meth) acrylate, sec-butyl (meth) acrylate, pentyl (meth) acrylate, 2-ethylhexyl (Meth) acrylate, isobonyl (meth) acrylate, isobonyl (meth) acrylate, isononyl
A pressure sensitive adhesive composition for a touch screen panel.
Wherein the crosslinking monomer further comprises a nitrogen-containing monomer
A pressure sensitive adhesive composition for a touch screen panel.
The cross-linkable monomer is preferably a monomer which does not contain hydroxyethyl (meth) acrylate
A pressure sensitive adhesive composition for a touch screen panel.
Further comprising a photoinitiator
A pressure sensitive adhesive composition for a touch screen panel.
Wherein the photoinitiator comprises one selected from the group consisting of a benzoin-based initiator, a hydroxyketone-based initiator, an aminoketone-based initiator caprolactam, and combinations thereof
A pressure sensitive adhesive composition for a touch screen panel.
The adhesive film had a dielectric constant k value measured at a frequency of 100 kHz of 3.0 or less
A pressure sensitive adhesive composition for a touch screen panel.
An adhesive film according to claim 11 laminated on the conductive layer; And
A cover window layer laminated on the adhesive film,
The touch screen panel comprising:
Wherein the conductive plastic film is a polyethylene terephthalate film formed on one surface of the conductive metal oxide layer
Touch screen panel.
The cover window may be a transparent glass replacement plastic film or tempered glass
Touch screen panel.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140122865A KR102018803B1 (en) | 2014-09-16 | 2014-09-16 | Adhesive composition for touch screen panel, adhesive film and touch screen panel |
| TW104130577A TW201612268A (en) | 2014-09-16 | 2015-09-16 | Adhesive composition for touch screen panel, adhesive film and touch screen panel |
| PCT/KR2015/009719 WO2016043518A1 (en) | 2014-09-16 | 2015-09-16 | Adhesive composition for touch screen panel, adhesive film and touch screen panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140122865A KR102018803B1 (en) | 2014-09-16 | 2014-09-16 | Adhesive composition for touch screen panel, adhesive film and touch screen panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20160032778A true KR20160032778A (en) | 2016-03-25 |
| KR102018803B1 KR102018803B1 (en) | 2019-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020140122865A KR102018803B1 (en) | 2014-09-16 | 2014-09-16 | Adhesive composition for touch screen panel, adhesive film and touch screen panel |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR102018803B1 (en) |
| TW (1) | TW201612268A (en) |
| WO (1) | WO2016043518A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170119001A (en) * | 2016-04-15 | 2017-10-26 | 주식회사 엘지화학 | Multi layered optical adhesive sheet, method preparing multi layered optical adhesive sheet and touch screen panel |
| KR20180032132A (en) * | 2016-09-21 | 2018-03-29 | 동우 화인켐 주식회사 | Adhesive Composition and Adhesive Sheet Using the Same |
| KR20220090003A (en) * | 2020-12-22 | 2022-06-29 | 계명대학교 산학협력단 | Composite materials of Emulsion Polymerization Adhesive for Double-side Tape of OLED Panel and manufacturing method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI765531B (en) * | 2021-01-14 | 2022-05-21 | 大陸商宸美（廈門）光電有限公司 | Touch module |
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2014
- 2014-09-16 KR KR1020140122865A patent/KR102018803B1/en active IP Right Grant
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- 2015-09-16 TW TW104130577A patent/TW201612268A/en unknown
- 2015-09-16 WO PCT/KR2015/009719 patent/WO2016043518A1/en active Application Filing
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| KR20100003714A (en) * | 2008-07-01 | 2010-01-11 | 주식회사 엘지화학 | Pressure-sensitive adhesive composition, polarizer and liquid crystal display |
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| KR20170119001A (en) * | 2016-04-15 | 2017-10-26 | 주식회사 엘지화학 | Multi layered optical adhesive sheet, method preparing multi layered optical adhesive sheet and touch screen panel |
| KR20180032132A (en) * | 2016-09-21 | 2018-03-29 | 동우 화인켐 주식회사 | Adhesive Composition and Adhesive Sheet Using the Same |
| KR20220090003A (en) * | 2020-12-22 | 2022-06-29 | 계명대학교 산학협력단 | Composite materials of Emulsion Polymerization Adhesive for Double-side Tape of OLED Panel and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102018803B1 (en) | 2019-09-06 |
| TW201612268A (en) | 2016-04-01 |
| WO2016043518A1 (en) | 2016-03-24 |
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