KR20150122454A - Touch Screen Panel and Method for Fabricating the same - Google Patents

Abstract

The present invention relates to a touchscreen panel and a method for manufacturing the same. The present invention includes: a first base layer having electrode materials on one side; and a second base layer having an adhesive layer of a certain thickness on one side facing the electrode materials. The touchscreen panel comprises: a sensing substrate, wherein the electrode materials are embedded in the adhesive layer by sticking the first base layer and the second base layer by means of the adhesive layer; a laminate, wherein another sensing substrate disposed on the second base layer is bonded; and an electrode line for conduction which is disposed around outer edges of the laminate and electrically connected to the electrode materials, having different electrodes, of the sensing substrate.

Description

TECHNICAL FIELD [0001] The present invention relates to a touch screen panel and a fabrication method thereof,

The present invention relates to a touch screen panel and a method of manufacturing the touch screen panel, more particularly, to a touch screen panel and a method of manufacturing the touch screen panel. The present invention also relates to a touch screen panel capable of forming an electrode material without requiring an etching process to make the automation process difficult, and capable of realizing a flexible panel product free from bending deformation.

In general, a touch screen panel is widely used as a means for inputting data in a touch manner in electronic devices such as computers, tablets and portable terminals.

Such a touch screen panel includes a cover glass having a protective function, a touch screen panel having a sensing function, a liquid crystal display (LCD) having a display function, a plasma display panel (PDP), an organic light emitting diode (OLED) Organic Light Emitting Diode) or the like, and can be applied to a product.

The modularized touch screen panel may be classified into on-cell type or in-cell type in which the touch screen panel is mounted on the display device or built in the display device, or one or two tempered glass and touch screen panel G1, G1F, and G2 systems, which are tempered glass-adhered types that adhere glass.

The touch screen panel closely adhered to the display device or tempered glass is classified into a resistance film type, a capacitive type, an ultrasonic type, and an infrared type according to a touch sensing type.

The touch screen panel is formed of a transparent electrode having indium oxide (ITO), which is transparent and has a low resistance value, and a GFF method in which two films are coated or deposited on the electrode material. This method has advantages of good yield and mass production, but production of indium (indium), which is the main material of ITO film, is concentrated in a specific country (China), and the price of indium is increased according to the limit of indium production, There is a problem that the manufacturing cost of the semiconductor device is increased.

Accordingly, an attempt to replace the ITO film, which accounts for about 40% of the manufacturing cost of the touch screen panel, with metal mesh, silver nanowire, carbon nanotube (CNT), and graphene It is actively done.

1A to 1E, a method of fabricating a touch screen panel and a touch screen panel using a metal mesh, which is a metal mesh type, among various materials replacing ITO, which is an electrode material of a touch screen panel, A grid-shaped groove 12 is formed on one side of the glass substrate 10 by an etching method and the manufactured metal mesh 20 is inserted into the groove 12.

The surplus metal mesh 20 protruding outside the glass substrate 10 or protruding outwardly of the groove without being inserted into the groove 12 connects the electrode line with the lapping process with the cover glass 40, Should be removed for processing.

The glass substrate 10 having the metal mesh 20 inserted into the recess 12 is filled with an adhesive 30 such as OCA (Optical Clean Adhesive) so that the cover glass 40 can be integrally attached and joined together. Respectively.

The glass substrate 10 provided with the metal mesh 20 is laminated on the glass substrate 10 so as to form different electrode layers therebetween through the insulating layer so that the outer edge of the glass substrate 10 can perform a touch sensor function. The touch screen panel is fabricated by connecting the electrode lines for conductivity, and the touch screen panel is combined with the display device to complete the manufacture of the touch screen panel.

However, in such a conventional manufacturing process, it is difficult to recycle excess material removed from the metal mesh 20 filled in the groove 12 of the glass substrate 10, and a step of removing excess material is involved, In addition to the surplus of the mesh, the entire process is lengthened by the removal process, and the manufacturing cost is increased.

Since the step of inserting the manufactured metal mesh 20 into the groove 12 and the step of removing the metal mesh 20 protruding outward of the glass substrate 10 are performed manually, There is a limit to fully automating the process of manufacturing the semiconductor device.

The upper end of the metal mesh 20 filled in the groove 12 and the upper end of the groove 12 (see FIG. 12) are stacked in the step of laminating and laminating the cover glass 40 via the adhesive 30 provided on the glass substrate 10. The air gap filled with air bubbles is formed between the cover glass 40 and the pressure sensitive adhesive, and a gap filling operation for removing the air gap is performed. Resulting in a defective product of the touch screen panel and the panel to which the touch screen panel was applied due to the gap filling process and the imbalance of the adhesion.

In addition, when a failure occurs in the final stage of manufacturing and completing the touch screen panel by laminating the glass substrate 10 and the cover glass 40, it is necessary to dispose the entire panel, thereby lowering the product yield and raising the manufacturing cost There was a problem.

(Patent Document 1) KR10-1322333 B1

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method of manufacturing a semiconductor device, which can laminate and bond materials without generating air gaps between the layers to fundamentally prevent gap filling, The present invention is to provide a touch screen panel and a manufacturing method which can form an electrode material without requiring an etching process to make the process difficult, and can realize a flexible panel product free from bending deformation.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

According to a first aspect of the present invention, there is provided a semiconductor device comprising: a first base layer having an electrode material on one surface; And a second base layer having an adhesive layer having a predetermined thickness on a surface facing the electrode material, wherein the first base layer and the second base layer are bonded to each other via the adhesive layer so that the electrode material is embedded in the adhesive layer And a plurality of sensing electrodes arranged on the second substrate layer, wherein the sensing electrodes are electrically connected to the electrodes of the sensing substrate having different electrodes on the outer rim of the laminate, A touch screen panel is provided with lines.

Preferably, the electrode material is a metal mesh having a lattice pattern, Ag nano-wire, carbon nanotube (CNT), or graphene.

Preferably, the electrode material is provided on the first base layer via an adhesive layer which is coated on one or both surfaces of the first base layer.

Preferably, the pressure-sensitive adhesive layer is composed of a pressure-sensitive adhesive in a semi-hardened or reactive state.

Preferably, the first base layer or the second base layer is made of a light-transmitting glass material or a light-transmitting film material.

More preferably, the first base layer and the second base layer are made of a flexible material.

Preferably, the first base layer and the second base layer are made of a material having a different viscosity.

More preferably, the first base layer is made of a material having a relatively higher viscosity than the second base layer.

Preferably, the first base layer is made of a release film material which is separated and removed from the electrode material and the adhesive layer.

More preferably, the release film material comprises a corona-treated resin layer and a mixture of silicon and a plasticizer, platinum catalyst, toluene, and methyl ethyl ketone in a predetermined ratio on the surface of the resin layer to a predetermined thickness And then dried.

More preferably, the resin layer has a thickness of 50 to 75 mu m.

Preferably, the first base layer is made of a material capable of generating an adhesive force relatively larger than that of the second base layer.

More preferably, the first base layer is formed of a material that generates an adhesive force of 40 ± 5 gf / in 2, or the second base layer is formed of a material that generates an adhesive force of 10 ± 3 gf / in 2.

Preferably, the pressure-sensitive adhesive layer is provided with a pressure-sensitive adhesive having a solid content ratio of 30 wt% to 40 wt%.

Preferably, the pressure-sensitive adhesive layer comprises a pressure-sensitive adhesive having a viscosity of 1,000 cps to 2,000 cps.

Preferably, the adhesive layer is made of OCA on a film attached to one surface of the second substrate layer, or a resin liquid OCR applied on one surface of the second substrate layer.

The present invention also provides a method of manufacturing a semiconductor device, comprising: providing a first base layer having an electrode material on one side; Providing a second base layer having an adhesive layer of a predetermined thickness on a surface facing the electrode material; Providing the sensing substrate by laminating the first base layer and the second base layer through the adhesive layer so that the electrode material is buried in the adhesive layer; Providing a laminated body in which the sensing substrate and at least one other sensing substrate are bonded to each other through an insulating layer; and a conductive electrode electrically connected to the electrode material of the sensing substrate having different electrodes on the outer edge of the laminated body. The method comprising the steps of: forming a line on a substrate;

The present invention also provides a method of manufacturing a semiconductor device, comprising: providing a first base layer having an electrode material on one side; Providing a second base layer having an adhesive layer of a predetermined thickness on a surface facing the electrode material; The first base layer and the second base layer are bonded to each other via the adhesive layer so that the electrode material is embedded in the adhesive layer, Providing a sensing substrate on which one of the substrate layers is separated and removed; Providing a laminated body in which the sensing substrate and at least one other sensing substrate are bonded to each other through an insulating layer; and a conductive electrode electrically connected to the electrode material of the sensing substrate having different electrodes on the outer edge of the laminated body. The method comprising the steps of: forming a line on a substrate;

Preferably, the step of providing the first base layer includes forming the electrode material on one surface by printing in a predetermined pattern.

Preferably, the step of bonding the first base layer and the second base layer is performed in a semi-cured state or a reactive state of the adhesive layer.

Preferably, after the step of providing the sensing substrate, the adhesive layer is further solidified by fully curing or fully solidifying, or solidified to have flexibility.

Preferably, the step of providing the sensing substrate further includes separating or removing the first substrate layer and / or the second substrate layer in advance.

The present invention as described above has the following effects.

(1) Since the electrode material formed on the base layer is embedded in the reaction layer or the semi-cured adhesive layer provided on the other base layer, the adhesion between adjacent layers and the occurrence of an air gap in joining can be prevented as much as possible, Since the step of etching the substrate can be eliminated, it is possible to prevent the post-processes such as adhesion and post-gap gap filling basically beforehand, fully automate the manufacturing process and mass production in a short period of time, And the product reliability can be enhanced.

(2) Flexible touch screen panel can be fabricated to flexibly deform due to external force because flexibility can be imparted to the sensing substrate, which is a key component of the touch screen panel. As a result, It is possible to respond to various demands and increase the reliability.

(3) Since the electrode material can be realized on the sensing substrate by the roll-to-roll printing method so that there is no surplus of the electrode material which is difficult to recycle, the process automation can be realized by attaching the substrate layer by the continuous process, .

1A to 1E are process diagrams illustrating a process for manufacturing a general touch screen panel.
FIG. 2 illustrates a sensing substrate used in a touch screen panel according to a first embodiment of the present invention,
(a) is a sectional view,
(b) is a perspective view.
FIG. 3 illustrates a sensing substrate used in a touch screen panel according to a second embodiment of the present invention,
(a) is a sectional view,
(b) is a perspective view.
4A is a cross-sectional view illustrating a touch screen panel according to a first embodiment of the present invention.
4B is a cross-sectional view illustrating a touch screen panel according to a second embodiment of the present invention.
4C is a cross-sectional view of a sensing substrate, which is used in a touch screen panel according to a first embodiment of the present invention, to which a protective layer is attached.
5 is a schematic view showing that an adhesive layer is applied to a second base layer employed in the touch screen panel according to the first and second embodiments of the present invention.
(a) shows a case where the adhesive layer is OCA,
(b) shows a case where the adhesive layer is OCR.
6A to 6E are process diagrams for manufacturing a touch screen panel according to a first embodiment of the present invention.
7A to 7F are process diagrams for manufacturing a touch screen panel according to a second embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to include an element does not exclude other elements unless specifically stated otherwise, but may also include other elements.

As shown in FIGS. 2A and 2B, the touch screen panel according to the first embodiment of the present invention includes a first base layer 110, a second base layer 120, And an electrode material 130 embedded in the adhesive layer 140 and serving as an electrode to perform a sensing function at the time of touch.

The first base layer 110 is formed as a thin layer having an electrode material 130 integrally formed on one surface of the first base layer 110. The second base layer 120 is adhered to a surface of the first base layer 110, Layer 140 may be formed as a thin layer having an integral structure.

The electrode material 130 provided on the first base layer 110 may be formed of a metal mesh having a lattice pattern, Ag nano-wire, carbon nanotube (CNT), or graphene It can be made of any one of them.

The electrode material 130 may be printed on one surface of the first substrate layer 110 in accordance with a preset pattern. The electrode material 130 may be formed on one surface of the first substrate layer 110, The adhesive layer 135 may be provided on one surface of the first base layer 110 to be adhered to the first base layer 110 to improve the adhesive strength with the first base layer 110.

The electrode material 130 provided on one surface of the first base material layer 110 is embedded in the adhesive layer 140 when the electrode material 130 is adhered to the second base material layer.

The adhesive layer 140 interposed between the first base layer 110 and the second base layer 120 may be made of a pressure-sensitive adhesive having a semi-hardened or reactive state so that the electrode material can be more easily embedded. .

The first base layer 110 and the second base layer 120 are vertically adhered to each other via the adhesive layer 140 having an adhesive force of a predetermined strength so that the electrode material 130 is adhered to the adhesive layer 140 And a sensing substrate 101 disposed in a buried state.

As shown in FIG. 4A, the sensing substrate 101 is composed of a laminate which is laminated and adhered to each other via at least one insulating layer 102. The sensing substrate 101 has a plurality of electrodes And a conductive electrode line electrically connected to the electrode material of the substrate to fabricate the touch screen panel 100. When the touch screen panel is interposed between the cover glass and the display device, .

Here, the first base layer 110 or the second base layer 120, which are integrally bonded to each other via the adhesive layer 140, has a light transmittance so as to transmit the image provided by the display device directly to the cover glass It can be made of a substrate of high glass material or can be made of a light transmissive film material.

In addition, the first base layer 110 and the second base layer 120 may be made of a flexible material such that the touch screen panel having the touch screen panel and the touch screen panel may be flexibly deformed by an external force, It is preferable that it is made of a material.

3A and 3B, the sensing substrate 101a, which is applied to the touch screen panel according to the second embodiment of the present invention, The adhesive layer 140 is separated and removed from the electrode material 130 and the adhesive layer 140 and the second base layer 120 is separated and removed from the adhesive layer 140, The material 130 may be made of a substrate material in which the material 130 is buried.

Although the first substrate layer 110 and the second substrate layer 120 are separated and removed, the sensing substrate 101a is not limited to the first substrate layer 110 and the second substrate layer 120, Can be selectively separated and removed.

4B, the sensing substrate 101a, in which the first base layer 110 and the second base layer 120 are separated and separated, is stacked vertically via at least one insulating layer 102, And a conductive electrode line (103) electrically connected to an electrode material of a sensing substrate having different electrodes on the outer rim of the laminate, thereby manufacturing the touch screen panel (100) When the touch screen panel is interposed between the cover glass and the display device, a touch screen panel having a touch input function is manufactured.

4C, the sensing substrate 101a, on which the first base layer 110 and the second base layer 120 are separated and removed, is provided with a glass substrate, a transparent film, and the like on both sides of the adhesive layer 140, It is possible to attach the protective layers 210 and 220 and transfer them to a post-process.

The first base layer 110 and the second base layer 120 may be separated and removed from the electrode material 130 and the adhesive layer 140 by an external force of a certain magnitude, It is preferable to be made of ash.

The release film material for forming the first and second base layers 110 and 120 may include a resin layer having a predetermined thickness such as a corona-treated PET material, and a resin layer on the surface of the resin layer, And a coating layer formed by coating a mixed solution prepared by mixing methyl ethyl ketone at a predetermined ratio to a thickness of 2 탆 or less and drying the mixture.

The releasing film material preferably has a resin layer made of a PET material having a thickness of 50 to 75 mu m as a base material. When the thickness of the resin layer is reduced to 50 mu m or less, If the thickness of the resin layer is increased to 75 占 퐉 or more, the releasability of the releasing film material is lowered and the plate thickness of the sensing substrate becomes thicker This is because it is inhibited by thinning.

It is preferable to control the compounding ratio so that the silicone residual sticking rate of the release film material is set to 85% or more.

In addition, the first base layer 110, on which the electrode material 130 is pattern-printed, is made of a material capable of generating a relatively larger adhesive force than the second base layer 120 provided on one side of the adhesive layer .

Herein, the first base layer 110 may be formed to have a thickness of 40 ± 5 gf / in 2 so as not to be peeled off before the second base layer 120, The second base layer 120 may be formed of a material that generates adhesive force. The second base layer 120 may be formed of a material capable of controlling the fluidity of the adhesive layer in the reactive or semi-cured state while stably maintaining the peeling property, It is preferable that it is made of a material which generates an adhesive force of 10 3 gf / in 2.

The adhesive layer 140 interposed between the first base layer 110 and the second base layer 120 may have a solid content ratio of 30 wt% or more and may be made of an acrylic copolymer.

At this time, if the solid content ratio of the adhesive layer 140 is high, it is good for maintaining the shape, but since the viscosity is increased with an increase of the content ratio, the coating on the one surface of the second base layer is not properly performed, It is preferable to appropriately adjust the content ratio.

The adhesive layer 140 coated on one surface of the second base layer 120 is coated with a solvent containing a certain amount of ethyl acetate (EA) for planarization after coating to obtain a viscosity of 1,000 cps to 2,000 cps It is preferable to adjust it appropriately.

If the adhesive layer 140 coated on one side of the second base layer 120 is assumed to be 2 degrees (about 12 mu m) in general bezel printing, the adhesive force of 1 kgf / in2 or more at 75 mu m to 125 mu m When the pressure-sensitive adhesive layer has an adhesive force of 1 kgf / in 2 or less, it is preferable that the pressure-sensitive adhesive layer is removed from the electrode material such as a metal mesh formed in a lattice pattern, This is because bubbles can be formed.

Here, the adhesive layer 140 may be further mixed with a leveling agent as an additive for stabilizing the layer thickness and improving the material flowability.

5A, the adhesive layer 140 provided on one side of the second base layer 120 may be a film of a film attached on one side of the second base layer 120 and joined together in a roll- As shown in Fig. 5 (b), a resin 142 which is applied without leakage by the dam 142a formed on the outer edge of the second base layer 120 and is semi-cured or reacted Liquid OCR (Optical Clean Resin) 142 as shown in FIG.

6A and 6B, the process of manufacturing the touch screen panel according to the first embodiment of the present invention includes the steps of forming a first base layer 110 having a predetermined thickness and having an electrode material 130 on one surface thereof, to provide.

The electrode material 130 may be formed of any one of metal mesh, Ag nano-wire, carbon nanotube (CNT), and graphene having a lattice pattern, In a lattice pattern set in advance.

The electrode material 130 may be formed on one surface of the first base material layer 110 which is in contact with the outer surface of one of the pair of rolls in the process of passing the first base material layer 110 through a gap between rolls arranged in a pair The electrode material may be transferred and printed.

As shown in FIG. 6C, the second base layer 120 having the adhesive layer 140 having a predetermined thickness is provided on a surface facing the electrode material 130.

The adhesive layer 140 is formed of a film OCA (Optical Clean Adhesive) 141 in a semi-cured or reactive state and is laminated on one surface of the second base layer 120 in a roll-to-roll manner, And may be coated on one side without leakage by a dam 142a formed on the outer edge of the second base layer 120. The OCR (Optical Clean Resin)

6D, a second base layer 120 having the adhesive layer 140 is used as an upper part and a first base layer 110 having the electrode material 130 is used as a lower part, The first substrate layer and the second substrate layer are superimposed on each other and are vertically cemented to each other, whereby the sensing substrate 101 is firstly manufactured.

The electrode material 130 of the first base layer 110 is embedded in the adhesive layer 140 in the reaction or semi-cured state by the external force provided when the first and second base layers 110 and 120 are vertically cemented , And the first and second base layers are integrally joined together by the adhesive force of the adhesive layer.

Here, the first base layer 110 formed on one surface of the electrode material 130 while passing between the rolls is adhered to the second base layer provided on one side of the adhesive layer while passing between the other rolls and the roll, The electrode material 130 is embedded and disposed in the adhesive layer 140 in the reactive or semi-cured state due to the external force generated upon passage.

The first substrate layer 110 and the second substrate layer 120 are bonded to each other to form a sensing substrate 101 and then the adhesive layer 140 is solidified by completely curing or completely solidifying the adhesive layer 140, It is preferable to further perform a solid stage in which the substrate is solidified so as to have flexibility that causes flexural deformation resulting from the deflection. The solid stage may be performed by heat or ultraviolet rays provided to the adhesive layer 140 or by natural curing .

6E, the sensing substrate 101 is bonded to another sensing substrate 101 through at least one insulating layer 102 to produce a multilayered structure in a second order, The conductive electrode line 103 electrically connected to the electrode material 130 of the sensing substrate 101 arranged up and down so as to have different electrodes is formed on the outer edge of the laminate, A touch screen panel is produced.

7A to 7D, a process of manufacturing a touch screen panel according to a second exemplary embodiment of the present invention includes a first substrate layer having an electrode material on one surface thereof and a second substrate layer having a pressure- The same processes as those of the process of attaching the layers are the same, a detailed description thereof will be omitted, and the same reference numerals are given to the same components.

The first base layer 110 bonded to the second base layer 120 via the adhesive layer 140 is separated from the electrode 130 and the adhesive layer 140 as shown in FIG. And the second substrate layer 120 is separated and removed from the adhesive layer 140 to provide a sensing substrate 101a made of an adhesive layer 140 having a predetermined thickness in which the electrode material 130 is embedded.

Although the first substrate layer 110 is removed first and the second substrate layer 120 is removed later in the separation process, the sensing substrate 101a is not limited to the second substrate layer 120, The first base layer 110 may be separated or removed later, or the first and second base layers 110 and 120 may be separated and removed at the same time.

The sensing substrate 101a made of the adhesive layer 140 in which the electrode material 130 is embedded is bonded to the sensing substrate 101a through at least one insulating layer 102, And a conductive electrode line 103 (not shown) electrically connected to the electrode material 130 of the sensing substrate 101a arranged vertically so as to have different electrodes on the outer rim of the multilayered structure, So that the touch screen panel 100 that generates an input signal by an external force transmitted when touching the touch screen panel 100 is manufactured.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

101, 101a:
102: insulating layer
103: conductive electrode line
110: first substrate layer
120: second substrate layer
130: electrode material
140: adhesive layer

Claims (22)

A first base layer having an electrode material on one surface thereof; And a second base layer having an adhesive layer having a predetermined thickness on a surface facing the electrode material, wherein the first base layer and the second base layer are bonded to each other via the adhesive layer so that the electrode material is embedded in the adhesive layer Sensing substrate and
And a laminate obtained by laminating other sensing substrates disposed on the second base layer,
And a conductive electrode line electrically connected to an electrode material of a sensing substrate having different electrodes on an outer edge of the laminate. The method according to claim 1,
Wherein the electrode material is one of a metal mesh having a lattice pattern, a silver nano-wire, a carbon nanotube, and a graphene. The method according to claim 1,
Wherein the electrode material is provided on the first base layer via an adhesive layer which is coated on one or both surfaces of the first base layer. The method according to claim 1,
Wherein the adhesive layer comprises a semi-cured or reactive adhesive. The method according to claim 1,
Wherein the first substrate layer or the second substrate layer is made of a light-transmitting glass material or a light-transmitting film material. The method according to claim 1,
Wherein the first substrate layer and the second substrate layer are made of a flexible material. The method according to claim 1,
Wherein the first base layer and the second base layer are made of a material having a different viscosity. 9. The method of claim 8,
Wherein the first base layer is made of a material having a relatively higher viscosity than the second base layer. The method according to claim 1,
Wherein the first base layer is made of a release film material which is separated and removed from the electrode material and the adhesive layer. 10. The method of claim 9,
The release film material comprises a corona-treated resin layer and a coating layer formed by coating a mixture of silicone with a certain ratio of a sibling agent, a platinum catalyst, toluene, and methyl ethyl ketone on the surface of the resin layer, Wherein the touch screen panel comprises: 11. The method of claim 10,
Wherein the resin layer has a thickness of 50 to 75 mu m. The method according to claim 1,
Wherein the first base layer is made of a material capable of generating an adhesive force relatively larger than that of the second base layer. 13. The method of claim 12,
Wherein the first base layer is made of a material that generates an adhesive force of 40 ± 5 gf / in2 or the second base layer is formed of a material that generates an adhesive force of 10 ± 3 gf / in2. The method according to claim 1,
Wherein the pressure-sensitive adhesive layer comprises a pressure-sensitive adhesive having a solid content ratio of 30 wt% to 40 wt%. The method according to claim 1,
Wherein the pressure-sensitive adhesive layer comprises a pressure-sensitive adhesive having a viscosity of 1,000 cps to 2,000 cps. The method according to claim 1,
Wherein the pressure-sensitive adhesive layer is made of OCA on a film attached to one surface of the second substrate layer, or a resin liquid OCR coated on one surface of the second substrate layer. Providing a first substrate layer having an electrode material on one surface thereof;
Providing a second base layer having an adhesive layer of a predetermined thickness on a surface facing the electrode material;
Providing the sensing substrate by laminating the first base layer and the second base layer through the adhesive layer so that the electrode material is buried in the adhesive layer;
Providing a laminate having the sensing substrate and another sensing substrate bonded together via at least one insulating layer;
And forming a conductive electrode line electrically connected to an electrode material of a sensing substrate having different electrodes on an outer edge of the laminate. Providing a first substrate layer having an electrode material on one surface thereof;
Providing a second base layer having an adhesive layer of a predetermined thickness on a surface facing the electrode material;
Attaching the first base layer and the second base layer together through the adhesive layer so that the electrode material is embedded in the adhesive layer;
Providing a sensing substrate on which the first base layer and the second base layer are both separated or removed, and one of the first and second base layers is separated and removed;
Providing a laminate having the sensing substrate and another sensing substrate bonded together via at least one insulating layer;
And forming a conductive electrode line electrically connected to an electrode material of a sensing substrate having different electrodes on an outer edge of the laminate. The method according to claim 17 or 18,
Wherein the step of providing the first substrate layer comprises printing the electrode material on one surface by printing in a preset pattern. The method according to claim 17 or 18,
Wherein the step of bonding the first base layer and the second base layer is performed in a semi-cured or reactive state of the adhesive layer. The method according to claim 17 or 18,
Further comprising a solid step of solidifying the adhesive layer by solidifying or flexing the adhesive layer completely or completely after providing the sensing substrate. 19. The method of claim 18,
Wherein the step of providing the sensing substrate further comprises separating or removing the first substrate layer and the second substrate layer in advance.

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