FILM TOUCH SENSOR AND TOUCH SCREEN PANEL INCLUDING SAME

12-10-2017 дата публикации
Номер:
KR1020170110875A
Принадлежит:
Контакты:
Номер заявки: 00-16-102035220
Дата заявки: 24-03-2016

[1]

The present invention refers to film touch sensor and touch screen panel including are disclosed.

[2]

[3]

Image display device such as the touch screen panel shown on a screen an indication of content object or human intervention to be selected for inputting an instruction input device are disclosed. An Image display device (front face) of a touch screen panel so that human hand or an object in contact with the converter positioned into an electrical signal. The, selected contents received input signal resulting in an indication received from a touch position.

[4]

The Image display device is operatively connected to a separate touch screen panel as the keyboard and mouse input device using scope can be extended as well as the walls and replace and are disclosed.

[5]

Touch screen panel implementing flow resistor film, optical sensing scheme for capacitive and the like having a known, double for capacitive touch screen panel includes, human hand or an object into which the different illumination [...] or ground electrode forming conductive when it counted, [sing pattern by sensing a change in capacitance or the like, positioned converter into an electrical signal.

[6]

The touch screen panel generally relates to liquid crystal display device, organic electro luminescence display device such as a flat panel display device is attached to the outer surface of the case width number maxims. The, high transparency and touch screen panel said thin property is desired with each other.

[7]

In addition, recent flexible flat panel display device for example of the electric are developed and, in this case said flexible flat panel display device also touch screen panel attached on flexible property is desired with each other.

[8]

In the case of bending the flexible touch screen panel continuously bending such as bending is applied wherein, once used substrate 440, also acts does not need only tens of at least flex fatigue characteristics flow tides.

[9]

However, the substrate having sufficient fatigue resistance to breakage of the poly-yet established respect are disclosed.

[10]

Korean registration patent number 647701 ring comprises a flexible substrate, flexible thin film transistor substrate and the flat panel display device having the same disclosure in the nanometer range.

[11]

[12]

Korean registration patent number 647701 call

[13]

The present invention refers to the visibility impact are excellent film touch sensor [...] intended for the number.

[14]

The present invention refers to the number [...] intended for heat resistance and hardness improved film touch sensor.

[15]

The present invention refers to said film touch sensor having a touch screen panel number [...] is intended.

[16]

In addition, the present invention refers to said Image display device with a touch screen panel [...] intended for the number.

[17]

[18]

1. At least one separating layer;

[19]

At least one separating layer number 1 disposed on said protective layer; and

[20]

Said number 1 to electrodes located pattern layer over the protective layer; wherein,

[21]

Said number 1 protective layer consists of acrylic copolymer and [...] compound is formed from the silicone composition for protective layer formation including compound, film touch sensor.

[22]

2. In over 1, including compounds represented by said formula 1 compounds [...], film touch sensor:

[23]

[Formula 1]

[24]

[25]

(In the formula, R1 , R2, R3 And R4 Each substituted with 1 to 10 carbon atoms independently end epoxy or double bonds is alkyl, said alkyl chain at least one oxygen atom or ester bond can be)

[26]

3. In over 1, represented by formula 1 - 1 and including at least one of said compounds of formula 1 - 2 [...], film touch sensor:

[27]

[Formula 1 - 1]

[28]

[29]

[Formula 1 - 2]

[30]

.

[31]

4. In over 1, said acrylic copolymer including urethane acrylate resin, film touch sensor.

[32]

5. In over 4, said urethane acrylate resin homopolymer is formed 30 to 200% in elongation, film touch sensor.

[33]

6. In over 1, said at least one end of the polymerizable double bonds including urethane acrylate resin, film touch sensor.

[34]

7. In over 1, said acrylic copolymer and the weight ratio of 80:20 to 55:45 [...] compound in, film touch sensor.

[35]

8. In over 1, transmittance of 95% or more protective layer number 1, the b * chromaticity -1. 5 to 1. 5 in, film touch sensor.

[36]

9. In over 1, surface roughness (Ra) is 30 Å hereinafter said number 1 the protection layer in film touch sensor.

[37]

10. In over 1, said number 1 2 protective layer have a modulus of elasticity. 8 to 4. 5GPa in film touch sensor.

[38]

11. In 1 above, further including said protective layer formation for composition can comprise a disclosure number and a solvent, film touch sensor.

[39]

12. 1 to 11 on either having terms film touch sensor, touch screen panel.

[40]

13. 12 having on touch screen panel, Image display device.

[41]

[42]

Touch sensor includes temperature processing conditions used for coating of the present invention film yellowing high transmittance and third generation, Image display device causes a great visibility when applied to excellent can be implemented.

[43]

Touch sensor includes a film of the present invention has an improved strength, bending fatigue resistance and markedly excellent, the part and is electrically coupled billion number can flex fatigue.

[44]

Said touch sensor includes a film of the present invention as well as improved strength, surface roughness can be obtained from implementing reduces thermal expansion.

[45]

[46]

Figure 1 shows a cross-section of the present invention in one embodiment according to film touch sensor with coarse also are disclosed. Figure 2 shows a cross-section of the present invention in one embodiment according to film touch sensor with coarse also are disclosed. 3 and 4 of the present invention also includes a method implementation according to film touch sensor number of coarse standpoint tank are disclosed.

[47]

The present invention refers to film touch strongest and touch screen panel including relates to search, more particularly, at least one separating layer; at least one separating layer number 1 disposed on said protective layer; and said number 1 to electrodes located pattern layer over the protective layer; wherein, said number 1 [...] acrylic copolymer and the protection layer is made of an improved surface roughness for protective layer formation including compound film and an column, third generation yellowing, Image display device causes a great visibility when applied to excellent can be implemented.

[48]

In one embodiment of the present invention according to film touch sensor 1 and also Figure 2 shows a coarse cross-sectional drawing also are disclosed, hereinafter, products on the surface, more specifically describe the present invention less than 1000.

[49]

The present invention according to film touch sensor a separate layer (10); said at least one separating layer (10) number 1 disposed on protective layer (20); and said number 1 protective layer (20) comprises a layer disposed on the electrode pattern.

[50]

At least one separating layer(10)

[51]

Thin film touch sensor typically carrier substrate on top of at least one separating layer (10) is formed, at least one separating layer (10) on application of the operation, carrier substrate is separated from the upper laminate having low number bath, the, a separation layer (10) is then supplied to a carrier layers formed of a substrate are disclosed.

[52]

The present invention according to at least one separating layer (10) protecting the electrode pattern layer electrode pattern layer that is number 1 protective layer (20) is equal to the underlying.

[53]

At least one separating layer (10) but is not limited to the material of the particularly, main polymer, e.g. polyimide (polyimide) based polymer, polyvinyl alcohol-based polymer (poly vinyl alcohol), polyamic acid (polyamic acid) based polymer, polyamide (polyamide) based polymer, polyethylene (polyethylene) based polymer, polystyrene [...] (polystylene) based polymer, poly [...] (polynorbornene) based polymer, phenyl butoxymaleimide copolymer (phenylmaleimide copolymer) based polymer, polyazo benzene (polyazobenzene) based polymer, poly [...] (polyphenylenephthalamide) based polymer, polyester (polyester) based polymer, polymethyl methacrylates (polymethyl methacrylate) based polymer, polyarylate (polyarylate) based polymer, cinnamate (cinnamate) based polymer, coumarin (coumarin) based polymer, [...] phthalides (phthalimidine) based polymer, [...] (chalcone) based polymer, polymer may be prepared by the number but such as aromatic acetylene-based polymer, the number one are not disclosed. They can be mixed alone or in combination with at least one 2.

[54]

Number 1 (20) protective layer

[55]

The present invention according to number 1 protective layer (20) is said at least one separating layer (10) is arranged on the, first passivation serves [...] electrode pattern electrode pattern layers a plurality of hierarchies.

[56]

Typically a protective layer of material of organic material, such as film or electrode pattern layer annealing process such as heating/cooling process for preparing product number number be placed when applied to temperature change, the color or a damaged by heat, transmittance decreases impact are door lowering the visibility has been number.

[57]

In the present invention number 1 protective layer (20) including the acrylic copolymer and [...] compound of the composition for protective layer formation by, film is improved resistance to flex fatigue, thermal expansion being reduced, low surface roughness and a transparent conduction layer is formed rejections. In addition to the third Image display device therefore excellent transmittance of yellowing generation for improving the visibility or the like.

[58]

Said [...] compound but not limited specifically of the type, for example, be a compound for formula 1.

[59]

[Formula 1]

[60]

[61]

(In the formula, R1 , R2, R3 And R4 Each substituted with 1 to 10 carbon atoms independently end epoxy or double bonds is alkyl, said alkyl chain at least one oxygen atom or ester bond can be)

[62]

Specific example of said formula 1 and formula 1 - 2 to include [...] compounds comprising at least one compound having a formula 1 - 1 can be.

[63]

[Formula 1 - 1]

[64]

[65]

[Formula 1 - 2]

[66]

[67]

The present invention according to composition for protective layer formation, the acrylic copolymer curable acrylic copolymer if one can be used without special number. Preferably the acrylic copolymer can be urethane acrylate resin.

[68]

Urethane acrylate resin has an improved tensile performance if number is installed at tank and reducing the risk of, flex fatigue resistance to bending has a bevel forming part number billion can be further enhanced.

[69]

The present invention according to urethane acrylate resin for protective layer formation preferably including at least one end of the polymerizable double bonds.

[70]

The present invention according to the kind of urethane acrylate resin particularly but not limited to, for example, be a compound for formula 2.

[71]

[Formula 2]

[72]

[73]

(A coloring composition, A is a substituted or unsubstituted C12 1 to 20 which is modified, said alkyl [leyn it crawls chain at least one oxygen atom or ester bond can be, said I is a diisocyanate compound derived from 2 is represent an, said R is a diol compound derived from 2 are formed in the exhibit, and said Y is methyl or hydrogen, n is integer of 1 to 20)

[74]

An example of a diisocyanate compound said, toluene diisocyanate, methylene diphenyl diisocyanate or the like 2 each at least one can be alone or mixed.

[75]

An example of a diol compound said, (poly) ethylene glycol, (poly) propylene glycol alone or the like can be mixed at least one each 2.

[76]

The present invention according to urethane acrylate resin is preferably 30 to 200% elongation in homopolymer is formed. In case of using urethane acrylate resin waistband in the range of said range having improved bending fatigue resistance, can be formed at a high transmittance.

[77]

In the present invention, urethane acrylate resin in addition to the available acrylic copolymer include using acrylic copolymer having epoxy group can be modified.

[78]

Modified unsaturated carboxylic acid monomers having epoxy group the acrylic copolymer containing unsaturated compound monomer including epoxy monomer, and olefinically unsaturated monomer including polymerisation reactor monomers can be obtained.

[79]

The content of unsaturated carboxylic acid monomers (solids) 5 to 50% by weight relative to the weight acrylic copolymer can have a total, preferably 8 to 30% by weight implementation being. Less than 5% by weight unsaturated carboxylic acid compound content of said turned an expansion coefficient is solubility in an aqueous alkaline solution, 50% by weight exceeds the solubility in aqueous alkaline solution to be coated is too large.

[80]

Unsaturated carboxylic acid monomers include acrylic acid, methacrylic acid, methyl [...], maleic acid, fumaric acid, citraconic sheet, meta cone acid, itaconic, or anhydride or the like alone or mixed each 2 can be at least one.

[81]

Unsaturated compounds containing epoxy monomers, e.g., glycidyl acrylic acid, methacrylic acid glycidyl, α - ethyl acrylic acid glycidyl, α-a n - propyl acrylic acid glycidyl, α-a n - butyl acrylic acid glycidyl, glycidyl methyl - β - acrylic acid, methacrylic acid - β - methyl glycidyl, acrylic acid - β - ethyl glycidyl, methacrylic acid - β - ethyl glycidyl, acrylic acid - 3, 4 - epoxy butyl, methacrylic acid - 3, 4 - epoxy butyl, - 6, 7 - epoxy [...] acrylic acid, methacrylic acid - 6, 7 - epoxy [...], α - ethyl acrylic acid - 6, 7 - epoxy [...], it cuts qualitative writing city [til the ether vinyl o -, m - or p - vinyl it cuts qualitative writing city [til the ether or the like can be vinyl it cuts qualitative writing city [til the ether, each of at least one 2 can be used alone or mixed.

[82]

The content of unsaturated compounds containing epoxy monomer (solids) 10 to 40% by weight relative to the weight acrylic copolymer entire implementation being.

[83]

Olefinically unsaturated monomers are for example, methyl methacrylate, ethyl methacrylate, n - butyl methacrylate, butyl among sec -, tert - butyl methacrylate, methyl acrylate, isopropyl acrylate, cyclo [...], 2 - methyl [...], DC claw pen reel neel arc relay [thu, DC claw pen hit neel arc relay [thu, DC claw pen reel neel meta [khu relay [thu, DC claw pen hit neel meta [khu relay [thu, DC claw pen hit neel jade hour ethyl meta [khu relay [thu, at step neel meta [khu relay [thu isocyanate, cyclo [...], methyl 2 - hour claw [heyk thread arc relay [thu, DC claw pen hit neel jade hour ethyl arc relay [thu, at step neel arc relay [thu isocyanate, phenyl methacrylate, phenyl acrylate, benzyl acrylate, 2 - exposed dentin, styrene, α - methylstyrene, m - methylstyrene, p - methylstyrene, a minute particle, p - methoxy styrene, 1, 3 - butadiene, isoprene, 2, 3 - dimethyl 1, 3 - butadiene, 3 - (tree [...]) profile which can be alone or in combination with at least one relay [thu csfv melter including using 2 can be respectively.

[84]

Olefinically unsaturated compound monomer content of 10 to 85% by weight relative to the weight (solids) acrylic copolymer entire implementation being. 10% by weight less than the stability of acrylic copolymer when too at a, 85% by weight is exceeded can be the movement of the also cured.

[85]

In addition, in the present invention according to said acrylic copolymer, one skilled upon considerations of additional monomer is used in addition to said 3 by number one monomer species are not disclosed.

[86]

Acrylic copolymer can be disclosure number number in order to polymerization using high pressure liquid coolant, said polymerization is disclosure number, e.g., 2, 2 '- azo bis isobutyrate methacrylonitrile, 2, 2' - azo bis (2, 4 - dimethyl ballet methacrylonitrile), 2, 2 '- azo bis (4 - methoxy 2, 4 - dimethyl foot with [ley nitrile), 1, 1' - azo bis (cyclohexane - 1 - carbonitrile), or dimethyl 2, 2' - azo bis isobutyl and the like can be used.

[87]

A weight average molecular weight in terms of polystyrene the acrylic copolymer preferably 6,000 to 30,000.

[88]

Protective layer formation for composition of the present invention, said modified having epoxy group acrylic copolymer (solids) 100 parts by weight of 5 to 60 parts by weight relative to the total composition for protective layer formation is preferably included in the contrast. Content less than 5 parts by weight when abruptly coatable and may cause a decrease in, number 1 when greater than 60 parts by weight of protective layer (20) can be also cured composition for forming the developing treatment is reduced.

[89]

The present invention according to weight ratio mixture of acrylic copolymer and [...] compounds not specifically defined, acrylic copolymer and about 90 to about 10 weight ratio preferably 80:20 to 55:45 [...] compounds can be mixed.

[90]

When said ID by weight ranging, the present invention according to color and that is adapted to also transmittance, while ensuring a coaxial cable (flexible) can be simultaneously implementing proper strength, thermal expansion billion number effect and combined each other.

[91]

The present invention according to number 1 protective layer (20) for forming a composition for forming a protective layer further comprises a polymer and a solvent therefore typically must disclosure number can be used.

[92]

The present invention according to polymerization disclosure number currently used is the disclosure number depending on the type of polymerizable compound can be used in combination with light alone or in thermal disclosure number.

[93]

Disclosure number polymer optical disclosure number is used, [...] acetoacetoxy-functional, and benzophenone ultraviolet absorbents, triazine, benzo phosphorus-based, imidazole-based, such as the [khu it buys ton orgin each alone or can be mixed.

[94]

Disclosure number polymerization heat disclosure number is used, azo-based, each alone or the like can be mixed it ladles, oxide orgin.

[95]

Total 100 parts by weight of said polymer composition for forming a protective layer over the disclosure number is 0 contrast. 5 to 10 parts by weight preferably incorporated.

[96]

Dissolving solvent comprises the above-described components, the use of a transparent thin film coatings with good coating-to obtain, taking into account the compatibility between the solids component must therefore can be used in two and are suitable.

[97]

An example of solvent, methanol, ethanol, methyl ethyl car expense [thol, such as percutaneous alcohol; ether such as tetra draw [phyu column; ethylene glycol monomethyl ether, ethylene glycol monoalkyl ethers such as ethyl ether glycol ether current; it will count with brush [pu methyl acetate, ethyl it will count with the brush [pu acetate such as ethylene glycol alkyl ether acetate current; propylene glycol monomethyl ether acetate, propylene glycol ethyl ether acetate, propylene glycol propyl ether acetate, propylene glycol monobutyl ether acetate such as propylene glycol alkyl ether acetate current; propylene glycol methyl ethyl acetate such as propylene glycol d alkyl acetate type; propylene glycol methyl ether pro blooms four the [thu, propylene [...], propylene glycol pro the ether pro which will bloom blooms four the [thu, such as propylene glycol butyl ether pro blooms four the [thu propylene glycol alkyl ether pro blooms four the [thu type; toluene, O-xylene aromatic hydrocarbons; methyl ethyl ketone, cyclohexanone, 4 - hydroxy 4 - methyl 2 - lip such as ketones; or acetic methyl, ethyl acetate, propyl acetate, butyl acetate, 2 - hydroxypropionic acid ethyl, 2 - hydroxy 2 - methyl propionic acid methyl, 2 - hydroxy 2 - methyl propionic acid ethyl, hydroxy acetic methyl, hydroxy acetic acid ethyl, hydroxy butyl acetate, lactic acid methyl, ethyl lactic acid, lactic acid profile, lactic acid butyl, 3 - hydroxypropionic acid methyl, 3 - hydroxypropionic acid ethyl, 3 - hydroxypropionic acid propyl, 3 - hydroxypropionic acid butyl, 3 - hydroxy 2 - methyl butanic acid methyl, the maul [thok the beginning it buys the methyl, the maul [thok the beginning it buys the ethyl, the maul [thok the beginning it buys pro it will bloom, the maul [thok the beginning it buys the butyl, [thok the beginning it buys the methyl, [thok the beginning it buys the ethyl, [thok the beginning it buys pro it will bloom, [thok the beginning it buys the butyl, pro the width beginning it buys the methyl, pro the width beginning it buys the ethyl, pro the width beginning it buys pro it will bloom, pro the width beginning it buys the butyl, butoxy acetic methyl, butoxy acetic acid ethyl, butoxy acetic acid profile, butoxy and butyl acetate, the maul [thok hour pro blood it comes it buys the methyl 2 -, the maul [thok hour pro blood it comes it buys the ethyl 2 -, 2 - the maul [thok hour pro blood it comes it buys pro it will bloom, 2 - [...] [chyey family, 2 - [thok hour pro blood it comes it buys the methyl, 2 - [thok at the time of [phul the blood it comes it buys the ethyl, 2 - [thok hour pro blood it comes it buys pro it will bloom, 2 - [thok hour pro blood it comes it buys the butyl, 2 - hydroxypropyl methyl propionic acid, 2 - phenylpropionic acid ethyl butoxy, 2 - butoxy pro bloom it buys pro it will bloom, 2 - butoxy propionic acid butyl, the maul [thok hour pro blood it comes it buys the methyl 3 -, the maul [thok hour pro blood it comes it buys the ethyl 3 -, 3 - the maul [thok hour pro blood it comes it buys pro it will bloom, [thok hour pro blood it comes it buys the methyl 3 -, 3 - [...], 3 - [thok hour pro blood it comes it buys pro it will bloom, 3 - [thok hour pro blood it comes it buys the butyl, 3 - pro the width hour pro blood it comes it buys the methyl, 3 - pro the width hour pro blood it comes it buys the ethyl, 3 - pro the width hour pro blood it comes it buys pro it will bloom, 3 - pro the width hour pro blood it comes it buys the butyl, 3 - hydroxypropyl methyl propionic acid, 3 - phenylpropionic acid ethyl hydroxypropyl, 3 - hydroxypropyl propionic acid profile, such as acid 3 - butoxy propionic acid butyl ester can be, each of at least one 2 can be used alone or mixed. Reactivity and solubility in an alkaline solution when polarity, said solvent is glycol ether, ethylene alkyl ether acetate-based, preferably including percutaneous or the like.

[98]

Solvent can be added to total composition may have an appropriate viscosity, thereby not one content are specially number. Other components in the entire composition 100 parts by weight of said composition for forming protective layer referred content by adding the remaining content (remaining) is adjusted so as to have the composition occupies substrate. For example total 100 parts by weight of contrast to 92 parts by weight of a composition for forming protective layer 11 but, only and not the limited to only this example.

[99]

Composition of the present invention needed further include polyfunctional acryl-based monomer may be filled. At least one polyfunctional acryl-based monomer include ethylene copolymers with monomers having a double bond can be at least 2. Specific examples 1, 4 - butanediol methacrylate, 1, 3 - butylene glycol d arc relay [thu, ethylene glycol d arc relay [thu, the methyl the propane d arc relay [thu which comes tree, tree the methyl the propane tree arc relay [thu which comes, in pen hit [su [thol tree arc relay [thu, in pen hit [su [thol tetra arc relay [thu, tree [...], polyethylene glycol d arc relay [thu, [...], in d pen hit [su [thol tree d arc relay [thu, in d pen hit [su [thol d arc relay [thu, brush expense [thol tree arc relay [thu, bisphenol A isobornyl methacrylate derivatives, in d pen hit [su [thol polyacrylate or methacrylate or the like can be mixed at least one alone or 2 respectively.

[100]

100 parts by weight of a polyfunctional acrylic monomer is 2 to 40 parts by weight relative to the total composition preferably incorporated contrast. Content less than 2 parts by weight of the cup just when sheet physical properties and can fall, when resolution greater than 40 parts by weight can fall disclosed.

[101]

For implementing the present invention according to protective layer formation may also further comprises within a range that the effect of the invention can be added optionally other number, for example, curing auxiliary number, number adhesion promoter, silicone surfactant can be further comprising active number.

[102]

Curing auxiliary number is about 220 °C dog annular reaction at a lower temperature than existing epoxy acrylic copolymer in the 140 to 170 °C period could be bonded each other to keep the balance.

[103]

Having isocyanate compounds include auxiliary number can be cured. For example, tree glycidyl isocyanurate, tris - (2 - carboxylic ethyl) isocyanurate and preparation DC 2 into each alone or preferably by weight of the at least one amide.

[104]

100 parts by weight relative to the total composition for protective layer formation is cured auxiliary number, 0. 1 to 3 parts by weight preferably incorporated. Content 0. 1 parts by weight of an epoxy group is below the coin passing sufficient and may cause a decrease in physical properties such as hardness, door number greater than 3 parts by weight of the unreacted monomer remains long-term to the reliability of the signal from the input part disclosed.

[105]

Number adhesion promoter include, 4, 4 ', 4 "- methyl [tin tree [su lung glow, 4, 4', 4" [tin tree [su lung glow - ethyl, 4 - [bis (4 - hydroxyphenyl) methyl] - 2 - [...], 4 - [bis (4 - hydroxyphenyl) methyl] - 2 - [thok hour lung glow, 4, 4 '- [(2 - hydroxyphenyl) methylene] bis [2 - methylphenol], 4, 4' - [(4 - hydroxyphenyl) methylene] bis [2 - methylphenol], 4, 4' - [(3 - hydroxyphenyl) methylene] bis [2, 6 - dimethylphenol], each writing hour d rock hour pro it will bloom trimethoxy silane or the like alone or at least one 3 - 2 can be mixed.

[106]

100 parts by weight relative to the total composition for forming a protective layer over the adhesion promoter has a number 0 contrast. 2 to 3 parts by weight preferably incorporated.

[107]

Optionally, a protective layer of the present invention number 1 (20) for silicone surfactant composition for forming uniform dispersion of each component can be further comprises active number.

[108]

An example of number active silicone surfactant, (3 - glycidic [...]) trimethoxysilane, (3 - glycidic [...]) tree [thok it will be sour, column, (3 - glycidic [...]) butyldialkoxysilanes methyl, (3 - glycidic [...]) trimethoxysilane, (3 - glycidic [...]) dimethyl [thok it will be sour, column, (3 - glycidic [...]) dimethyl [thok it will be sour, column, 3, 4 - epoxy the butyl tree maul [thok it will be sour, column, 3, 4 - epoxy [thok it will be sour in butyl tree, column, 2 - (3, 4 - epoxy hour crow [heyk thread) ethyl the tree maul [thok it will be sour, column, 2 - (3, 4 - epoxy matching with [heyk thread) ethyl [thok it will be sour in tree, column, amino each pro the tree maul which will bloom [thok it will be sour, column 2 can be at least one like alone or mixed.

[109]

Silicone surfactant relative to the total composition for protective layer formation is 100 parts by weight of active number 0 contrast. 2 to 3 parts by weight preferably incorporated.

[110]

In the present invention number 1 protective layer (20) and transmittance of a correcting unit, after curing of the protective layer, in 220 to 240 °C, 80 as measured by heating it to about 100 minutes, the electrode pattern layer including a range in which said annealing temperature conditions, the aforementioned conventional organic material is used, degradation in said conditions is easily produced, pressure drop change color TFT display panel is reduced substrate.

[111]

The temperature detector, the present invention according to number 1 protective layer (20) in the range from 220 to 240 °C 80 100 minutes after heating, b * chromaticity of at least 95% transmittance is -1. 5 to 1. 5 by satisfies, Image display device for improving the visibility or the like.

[112]

In the present invention, in 220 to 220 to 240 °C, 100 minutes 80 minutes after heating, number 1 protective layer (20) when the transmittance of less than 95%, product number as number upon degradation of process for preparing range, Image display device as far as visibility suitable to be coated. In addition, in 220 to 220 to 240 °C, 100 minutes 80 minutes after heating, number 1 protective layer (20) b * chromaticity of the -1. 5 to 1. 5 when deviating from the, number of the product number to process for preparing a color change, Image display device as far as visibility suitable to be coated. In particular, b * chromaticity is -1. 5 when generating less than [cheng mutation can be, + 1. 5 if it exceeds a yellowing can be generated.

[113]

The present invention according to number 1 protective layer (20) and transmittance of a correcting unit number 1 protective layer (20) material (such as glass transition temperature of polymer material), protective layer formation process condition, condition can be implemented via upper electrode layer of the fabrication process.

[114]

In addition, the present invention according to number 1 protective layer (20) have a modulus of elasticity 2. 8 to 4. 5GPa hereinafter implementation being. Said elastic modulus in the range number billion more efficiently can crack, deterioration of optical characteristics can be minimum, transparent conduction layer is formed by performing a surface roughness can be disclosed.

[115]

The present invention according to number 1 protective layer (20) can have a surface roughness (Ra) is the 30 Å hereinafter, more preferably 15 Å hereinafter implementation being. Range of said bipolar oxidized if it has, reducing haze can be preferably to improve visibility.

[116]

[117]

Electrode pattern layer(30)

[118]

The present invention according to electrode pattern layer (30) said number 1 the protective layer (20) is arranged on the.

[119]

Said electrode pattern layer (30) that it was not or the material of the specifically defined, if a conductive material is not one number can be used, for example indium composition for producing cable (ITO), indium [...] (IZO), indium [...] (IZTO), aluminum [...] (AZO), gallium [...] (GZO), polyarylene ether sulfone for producing cable (FTO), the indium composition for producing cable (ITO-a Ag a-ITO) indium composition for producing cable - -, the indium [...][...] indium - - (IZO provided Ag provided IZO), indium and aluminum [...] - - - - the indium [...][...] (IZTO provided Ag provided IZTO) is selected from the group consisting of aluminum [...] (AZO provided Ag provided AZO) metal oxide current; gold (Au), is (Ag), copper (Cu), molybdenum (Mo) and APC consisting of metals selected from the group consisting; gold, is, copper and lead metal selected from the group consisting of nanowires; carbon nanotube (CNT) and yes pin (graphene) selected from the group consisting carbon based [...]; and poly (3, 4 - ethylenedioxythiophene) (PEDOT) polyaniline (PANI) and made of a material selected from the group consisting of conductive polymer [...] can be selected. They can be mixed alone or in combination with at least one 2.

[120]

Said electrode pattern layer (30) is further provided with a photosensitive resist pattern can be insulating.

[121]

[122]

Flexible substrate (50)

[123]

Said electrode pattern layer of the present invention film touch sensor (30) disposed number 1 protective layer (20) on a flexible substrate (50) can be further comprises. Said flexible substrate (50) is disposed on the top of most touch sensor as laminated film, a separation layer (10) can be arranged to oppose.

[124]

Flexible substrate (50) includes a support are not transparent film material prepared by the number it was found one number can be used, for example, cellulose ester (example: cellulose triacetate, cellulose propionate, cellulose butyrate, cellulose acetate propionate, and nitrocellulose), polyimide, polycarbonate, polyester (for example: polyethylene terephthalate, polyethylene naphthalate, poly - 1, 4 - cyclo [...], d lung stipendiary hour ethane 1, 2 - polyethylene - 4, 4' - dicarboxylate and polybutylene terephthalate, polystyrene (example: (syndiotactic) syndiotactic polystyrene), polyolefin (e.g.: polypropylene, polyethylene and poly methylpentene), polysulfone, polyether sulfone, polyarylate, polyether - imide, slurry by, polyether ketone, selected from the group consisting of polyvinyl alcohol and polyvinyl chloride film prepared by the number to be a reading only a single or a mixture of these.

[125]

Flexible substrate (50) is publicly known it was found an aqueous adhesive number, number or photocurable or thermosetting adhesive or adhesive number can be attached using a number input device.

[126]

If necessary, protective film of the present invention touch sensor includes said number 1 (20) and flexible substrate (50) between the number 2 protective layer (40) can be further.

[127]

The touch sensor of the present invention film number 2 protective layer (40) can be number 2 electrode pattern layer is disposed on, in this case, the aforementioned electrode pattern number 2 electrode pattern layer material layers can be formed. In this case, electrode pattern layer formed on surface of said number 2 number 2 protective layer (40) can be disposed on the further protective layer number 3.

[128]

Number 2 protective layer (40) and/or protective layer include organic or inorganic insulating material is publicly known it was found number 3 can be used without a number.

[129]

[130]

Hereinafter, bath method of the present invention film touch sensor to explain number less than 1000.

[131]

3 and 4 of the present invention also includes a method of implementation according to film touch sensor number bath as coarse standpoint, the present invention described hereinafter drawing that are directionally with reference to each other.

[132]

First, such as (a) also 3, carrier substrate (60) on a separation layer (10) formed on the substrate.

[133]

Carrier substrate (60) include process can be fixed without distorting readily bending and proper strength and number to heat or chemically treated fibers substantially free affect [...] holes can be used without special number one. For example glass, quartz, silicon wafer, can be X-ray is used as the alkali, preferably glass can be used.

[134]

At least one separating layer (10) these polymer material can be formed.

[135]

At least one separating layer (10) for forming method are specially without limit, said polymer composition a coating, knife coating, spin-coating, casting method, micro gravure coating, gravure coating, bar coating, roll coating, wire bar coating method, dip coating method, spray coating method, screen printing, gravure printing, flexographic printing, offset printing, inkjet coating, dispenser printing, nozzle coating, a publicly known method such as it was found by capillary coating is formed by applying assemblies can be.

[136]

At least one separating layer (10) is further subjected to a curing process can be said additional following application.

[137]

Layer separated by the aforementioned method (10) after formed, can be further subjected to an additional curing process.

[138]

Curing method are specially without limit photocuring or thermally curable resin or naturally, is pivotably method uses both said 2. Photocuring execution both correction and sheet and particularly not limited.

[139]

Then, (b) also 3 such as, said separation layer (10) number 1 on protective layer (20) formed on the substrate.

[140]

Number 1 protective layer (20) ferritic material composition for protective layer formation separation layer (10) is deposited onto and then hardened can.

[141]

Coating method is not specifically defined, said separation layer (10) by the same method can be applied composition for forming method.

[142]

Number 1 protective layer (20) radiation curing of conditions without impaired to such an extent that sufficient number cured product made in the coin number pends the semi properties is not limited particularly. For example 24 hours can be performed.

[143]

For example quantity of 10 to 1,000 mJ/cm2 , Preferably 10 to 500 mJ/cm2 Implementation being. The light emitted from the 10 mJ/cm2 When the coin less than sufficient from lowering, 1,000 mJ/cm2 Yellowing or cracks when the film is greater than can be.

[144]

Further, number 1 protective layer (20) is a thermosetting after photocuring xanthylic can be said.

[145]

Specific for example, 30 seconds to 5 minutes after photocuring performed, heat can be performing.

[146]

For example less than 300 °C thermosetting, preferably carried out in the 230 °C hereinafter be a. If in thermosetting is 300 °C or more, carrier substrate (60) glass transition temperature (Tg) of a coefficient of thermal expansion greater than or door can be used to tape is played back number is transmitted.

[147]

For example thermosetting 120 minutes 10 minutes can be performed.

[148]

Heat for increasing the speed, number 1 protective layer (20) can be thermosetting composition for forming further includes auxiliary number.

[149]

In addition curing of thermosetting protective layer can only be directly photocuring embodiment, efined on curing temperature and time is referred.

[150]

After, 3 (c) also leaves, said number 1 protective layer (20) on number 1 electrode pattern (30) formed on the substrate.

[151]

Electrode pattern layer (30) these metal oxide current, metals, metal nanowires, carbon-based [...], a front conductive polymer material can be formed.

[152]

Electrode pattern layer (30) forming method is not specifically defined, physical vapor deposition, chemical vapor deposition, plasma deposition, plasma polymerization process, thermal deposition method, a thermal oxidation method, by using an anodizing process, cluster ion-beam deposition, screen printing, gravure printing, flexographic printing, offset printing, inkjet coating, by a publicly known method can be printed dispenser such as it was found.

[153]

The method of the present invention film touch sensor number tank said electrode pattern layer (30) is formed protective layer number 1 (20) on a flexible substrate (50) further comprises attaching step.

[154]

Flexible substrate (50) is publicly known it was found an aqueous adhesive number, number or photocurable or thermosetting adhesive or adhesive number number input device can be attached by re-using.

[155]

Flexible substrate (50) can be include the aforementioned transparent film.

[156]

If necessary, the method of the present invention film touch sensor number tank said flexible substrate (50) before attachment of, electrode pattern (30) is formed protective layer number 1 (20) number 2 on protective layer (40) further includes forming can be.

[157]

In addition, said number 2 protective layer (40) further placing on number 2 electrode can be, in this case, electrodes are formed number 2 number 2 protective layer (40) can be more than that of the number 3 on the protective layer.

[158]

Figure 4 shows a flexible substrate also (50) before attachment of number 2 protective layer (40) is formed by or when standpoint, the number 2 and number are not one protective layer (40) thereof can does not forming step.

[159]

Number 2 protective layer (40) and number 3 when forming a protective layer, to further improve anti-crack can be.

[160]

Number 2 protective layer (40) and method for forming protective layer number 3 does not also specifically defined, for example number 1 protective layer (20) can be formed in the same method.

[161]

Film touch sensor a separate layer (10) is fixed to a carrier substrate (60) which can be separated from the tank by number, separation time which is not specifically defined, for example electrode pattern layer (30) after formation of, number 2 protective layer (40) after formation of, after formation of electrode number 2, number 3 after formation of protective layer, or flexible substrate (50) may be filled after attachment of a separable.

[162]

Number bath method of the present invention film touch sensor satisfying particular transmission and chroma b * number 1 protective layer (20) by forming, upon occurrence of said carrier from the substrate metal layer are sequentially billion number generating circuit generates or can, deterioration of optical characteristics can be the minimum.

[163]

[164]

Hereinafter, a preferred embodiment of the present invention at one number to aid in understanding, the present invention is exemplified ephemeral number appended claim these in the embodiment is a relayed but is, in the embodiment of the present invention feature category and to perform various changes and modifications within the range in which it is apparent that vertical to one skilled in the, of relay and modifying these modified of course also belonging to claim are disclosed.

[165]

Synthesis example 1. Acrylic copolymer of number bath:

[166]

Propylene glycol methyl ethyl acetate (PGMEA) to 70 parts by weight of solvent cap, glycidyl 10 parts by weight of methacrylic acid, 3 - 1 parts by weight (tree [...]) propyl methacrylate, 8 parts by weight of methyl [...], 10 parts by weight of methyl methacrylate into, as disclosure number 2, 2' - azo bis (4 - methoxy - 2, 4 - dimethyl ballet methacrylonitrile) adding 1 parts by weight, stirring the mixture-gate. In response to the temperature of said reaction solution 70 °C oxidizing of 6 time rear acrylic copolymer.

[167]

In the embodiment and Comparison example. Number bath composition for protective layer formation

[168]

Table 1 number was a content and components provided with a protective composition for high pressure liquid coolant.

[169]

A total copolymer acrylicB polymerizable compoundC disclosure numberD number addedE solvent
TypesContentTypesContentTypesContentTypesContentTypesContent
In the embodiment 1A provided 123B-a 16C-a 10. 5D0. 5E-a 140
E-a 230
In the embodiment 2A provided 120B-a 19C-a 10. 5D0. 5E-a 140
E-a 230
In the embodiment 3A provided 117B-a 112C-a 10. 5D0. 5E-a 140
E-a 230
In the embodiment 4A provided 117B-a 212C-a 10. 5D0. 5E-a 140
E-a 230
In the embodiment 5A-a 217B-a 112C-a 10. 5D0. 5E-a 140
E-a 230
In the embodiment 6A provided 317B-a 112C-a 10. 5D0. 5E-a 140
E-a 230
In the embodiment 7A provided 114. 5B-a 114. 5C-a 10. 5D0. 5E-a 140
E-a 230
In the embodiment 8A provided 414. 5B-a 114. 5C-a 10. 5D0. 5E-a 140
E-a 230
Comparison example 1A provided 120B-a 39C-a 10. 5D0. 5E-a 140
E-a 230
Comparison example 2A provided 120B-a 49C-a 10. 5D0. 5E-a 140
E-a 230
Comparison example 3 A provided 129--C-a 10. 5D0. 5E-a 140
E-a 230
Comparison example 4--B-a 129C-a 10. 5D0. 5E-a 140
E-a 230
A: acrylic copolymer A-a 1:2 functional urethane acrylate (UA provided 122P, Shin-a Nakamura Chemical), elongation (%)=50A-a 2:2 functional urethane acrylate (UA provided 160TM, Shin-a Nakamura Chemical), elongation (%)=80A provided 3:2 functional urethane acrylate (UA provided 232P, Shin-a Nakamura Chemical), elongation (%)=135A provided 4: example 1 synthesis of acrylic copolymer B: B provided 1 polymerizable compound: compounds of formula 1 - 1 B provided 2 (TG-a G, [...] resistant industrial stock Company): compounds of formula 1 - 2 (TA provided G, [...] resistant industrial stock Company) B provided 3: Ethoxylated pentaerythritol (ATM provided 4E, Shin-a Nakamura Chemical) B provided 4: N, N non-diglycidylaniline (GAN, Shin-a Nakamura Chemical) C: disclosure number C-a 1: C-a 2 V-a 601 (Wako Pure Chemical): D IRGACURE 369 (Ciba Specialty Chemicals): leveling number SH-a 8400 E (Dow Corning Toray): solvent E-a 1: propylene glycol monomethyl ether acetate (it is an anger, [kheym colleague) E-a 2: methyl ethyl ketone (Sigma non-Aldrich)

[170]

[171]

Film touch sensor number bath

[172]

A soda lime glass (polyimide) separation layer thickness including a thickness 700 micro m polyimide on 0. 13 micro m was coated. After, said separation layer on each said in the embodiment and comparison composition for applying sequential protective layer formation, 180 mJ/cm2 1 thickness cured condition. 5 micro m protective layer of number 1 weight percent.

[173]

After, said number 1 ITO layer over the protective layer thickness 0. 05 is filled in the micro m, said ITO electrode pattern layer on the photosensitive resist film is weight percent.

[174]

After, electrode pattern layer is formed over the protective layer and forming a protective layer number 1 and number 2, number 2 acrylic pressure-sensitive adhesive layer is over the protective layer, thickness of 50 micro m attached to a polycarbonate substrate, film touch sensor number was high pressure liquid coolant.

[175]

[176]

Experiment example

[177]

(1) bending Crack Evaluation

[178]

In the embodiment and comparison of inventions film touch sensor 1 mounted on the cutting and bending tester 100 mm x 10 mm (JIRBT-a 210, Juniltech) recovery after bending of the, flexible substrate cracking terminals when the evaluated, the result table 2 are described.

[179]

<Evaluation criteria>

[180]

○: crack american occurrence

[181]

Δ: fine crack

[182]

X: film touch sensor rupture

[183]

[184]

(2) heat-resistant Optical properties Evaluation

[185]

In the embodiment and comparison on glass composition further embodiments of protective layer formation after application to the filler 230 °C, 90 minutes after charging a convection oven, transmittance (%) and color (b *) a colourmetric measuring equipment (OPS-a SP2000, the [phwu raising yarn) value when the measured, the result table 2 are described.

[186]

B * chromaticity is + 1. 5 if it exceeds a yellowing, -1. 5 [cheng mutation occurred in less than can be the case.

[187]

[188]

(3) Ten durability And surface roughness evaluation

[189]

In the embodiment and comparison of the ITO layer over the protective layer electrode pattern thickness 0 embodiments of number 1. 05 micro m to 20 minutes in convection oven is filled in the embodiment when the surface roughness measuring 230 °C after annealing, the result shown in table 2.

[190]

ClassificationThe heat resisting propertyElastic modulus (GPa)Crack evaluationSurface roughness (Å)(Micro m) patterned on wrinkles
Transmittance (%)B *
In the embodiment 198. 51. 143. 620. 7-
In the embodiment 298. 71. 013. 617. 6-
In the embodiment 399. 20. 843. 815. 2-
In the embodiment 499. 10. 823. 915. 9-
In the embodiment 596. 41. 283. 519. 5-
In the embodiment 697. 51. 003. 422. 1-
In the embodiment 799. 30. 694. 0Δ12. 6-
In the embodiment 899. 40. 604. 1Δ12. 5-
Comparison example 198. 71. 232. 9Me embodiment-0. 45
Comparison example 298. 51. 093. 6Me embodiment-0. 26
Comparison example 395. 53. 112. 1Me embodiment-0. 50
Comparison example 499. 50. 454. 9X10. 1-

[191]

the reference table 2, in the embodiment 1 to 8 film touch sensor has a strength which is excellent in bending properties improved significantly, while at the same time low yellowing properties can be sure that the transmittance.

[192]

In addition, acrylic copolymer content of contrast in the case of writing nose base reel many somewhat content in the embodiment 7, other than in the embodiment rises slightly transmittance were verify.

[193]

And, the present invention according to in the embodiment are not confirmed excellent comparison example contrast surface wrinkles on ten durability were hardly occurs. In addition, in the embodiment are not insignificantly affecting both the visibility is about 30 Å hereinafter to a low surface roughness.

[194]

While, comparison example 1 to 3 not touch sensor includes depositing a layer of ITO film introduced writing nose base reel to the cover by thermal expansion during annealing after visually confirming the capable of such a prism sheet. Comparison example 1 to 3 is generated by a hydraulic pressure area further by a corrugation (film touch sensor number bath impossible), didn't crack evaluation per se.

[195]

In addition, comparison example 4 film touch sensor when the refresh completely off or bending, to generate large cracks were verify.

[196]

[197]

10: separation layer 20: number 1 protective layer 30: electrode pattern 40: number 2 protective layer 50: flexible substrate 60: carrier substrate



[1]

The present invention relates to a film touch sensor and a touch screen panel including the same, and more particularly, to a film touch sensor which includes: a separation layer; a first protection layer arranged on the separation layer; and an electrode pattern layer arranged on the first protection layer. The first protection layer is made of compositions for forming a protection layer including acrylic copolymers and glycoluril-based compounds, thereby improving surface roughness, preventing the degradation of transmittance, and reducing the generation of yellowing. Accordingly, when being applied to an image display device, the present invention can increase high visibility.

[2]

COPYRIGHT KIPO 2017

[3]



At least one separating layer; at least one separating layer number 1 disposed on said protective layer; and said number 1 to electrodes located pattern layer over the protective layer; wherein, said number 1 protective layer consists of acrylic copolymer and [...] compound is formed from the silicone composition for protective layer formation including compound, film touch sensor.

According to Claim 1, including [...] compound that is represented by said formula 1 compounds, film touch sensor: [formula 1] (In the formula, R1 , R2, R3 And R4 Each substituted with 1 to 10 carbon atoms independently end epoxy or double bonds is alkyl, said alkyl chain at least one oxygen atom or ester bond can be)

According to Claim 1, represented by formula 1 - 1 and including at least one of said compounds of formula 1 - 2 [...], film touch sensor: [formula 1 - 1] [Formula 1 - 2] .

According to Claim 1, said acrylic copolymer including urethane acrylate resin, film touch sensor.

According to Claim 4, said urethane acrylate resin homopolymer is formed 30 to 200% in elongation, film touch sensor.

According to Claim 10, said at least one end of the polymerizable double bonds including urethane acrylate resin, film touch sensor.

According to Claim 1, said acrylic copolymer and the weight ratio of 80:20 to 55:45 [...] compound in, film touch sensor.

According to Claim 1, transmittance of 95% or more protective layer number 1, the b * chromaticity -1. 5 to 1. 5 in, film touch sensor.

According to Claim 1, surface roughness (Ra) in said number 1 the protection layer is 30 Å hereinafter, film touch sensor.

According to Claim 1, said number 1 2 protective layer have a modulus of elasticity. 8 to 4. 5GPa in film touch sensor.

According to Claim 1, further including said protective layer formation for composition can comprise a disclosure number and a solvent, film touch sensor.

Either claim 1 to 11 having terms film touch sensor, touch screen panel.

Having touch screen panel of claim 12, Image display device.