KR20110132875A - Method of manufacturing touch panel sensor - Google Patents

Method of manufacturing touch panel sensor Download PDF

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Publication number
KR20110132875A
KR20110132875A KR1020100052457A KR20100052457A KR20110132875A KR 20110132875 A KR20110132875 A KR 20110132875A KR 1020100052457 A KR1020100052457 A KR 1020100052457A KR 20100052457 A KR20100052457 A KR 20100052457A KR 20110132875 A KR20110132875 A KR 20110132875A
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KR
South Korea
Prior art keywords
upper glass
glass substrate
lower transparent
transparent substrate
substrate
Prior art date
Application number
KR1020100052457A
Other languages
Korean (ko)
Inventor
남동식
박철
Original Assignee
(주)삼원에스티
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Publication date
Application filed by (주)삼원에스티 filed Critical (주)삼원에스티
Priority to KR1020100052457A priority Critical patent/KR20110132875A/en
Publication of KR20110132875A publication Critical patent/KR20110132875A/en

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    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Abstract

PURPOSE: A method for manufacturing a touch panel sensor is provided to uniformly adhere a space between substrates by supplying an inner transparent spacer between the bonded substrates. CONSTITUTION: Inner transparent spacers(150) are two-directionally arranged on an upper glass substrate(110) or lower transparent substrate(120). The upper glass substrate and the lower transparent substrate are mutually adhered with a preset space by the inner transparent spacer. The upper glass substrate and the lower transparent substrate are bonded by forming an optical adhesion layer(140).

Description

Manufacturing Method of Touch Panel Sensor {METHOD OF MANUFACTURING TOUCH PANEL SENSOR}

The present invention relates to a method for manufacturing a touch panel sensor, and more particularly, to a method for manufacturing a touch panel sensor excellent in optical characteristics.

Touch panel sensors are widely used to detect the position of the body contact. As a method of detecting the contact of the body, a decompression method in which the upper and lower electrodes are selectively contacted by a predetermined pressure, or an electrostatic method or a resistive film method that detects a change in capacitance at the touched part and detects the location thereof. It is widely used.

The above-described touch panel sensor is provided on a display such as an organic light emitting diode (LCD), a liquid crystal display device, etc. capable of displaying an image, and is in contact with an image provided by the display. The body coordinates can be measured.

In general, the touch panel sensor is provided in the form of an integrated panel through a process of bonding a plurality of films to each other.

Specifically, the touch panel sensor usually includes a lower transparent film positioned on the display and an upper transparent film provided on an upper portion of the lower transparent film, and transparent electrodes may be disposed on the bottom and the top of each film, respectively, between the two films. The insulating member is interposed to electrically separate the transparent electrodes.

In addition, since the transparent films are very thin, about tens of micrometers, there is a separate reinforcement on top of the upper transparent film to prevent breakage due to refraction by touch or to prevent scratches on the surface due to user's touch. The glass may be further provided, or the upper transparent film itself may be provided as tempered glass.

Meanwhile, a bonding material for bonding the two films may be disposed between the upper and lower transparent films or between the upper transparent film and the tempered glass, and optically excellent using an OCA (Optically Clear Adhesive) film as the bonding material. I can attach it.

However, such a bonding material may be provided in the form of a film, and may cause bubbles or uneven thickness between the upper and lower transparent films or the upper transparent film and the tempered glass attached to the bonding material. These are pointed out as a major factor that causes a considerable amount of touch panel sensor failure.

The present invention provides a method for manufacturing a touch panel sensor that can reduce the defects generated during bonding between substrates used in the touch panel sensor.

According to an exemplary embodiment of the present invention for achieving the above object of the present invention, the upper glass substrate, the lower transparent substrate disposed on the bottom of the upper glass substrate, and the optical adhesive layer formed between the upper glass substrate and the lower transparent substrate Including, the manufacturing method of the touch panel sensor for detecting the contact of the body, in order to maintain a constant distance between the upper glass substrate and the lower transparent substrate, two-dimensional on one surface of either the upper glass substrate or the lower transparent substrate Providing a plurality of inner transparent spacers disposed in the spaced apart state, spaced at predetermined intervals by the inner transparent spacers, contacting the upper glass substrate and the lower transparent substrate to each other, and forming an optical adhesive layer to form the upper glass substrate. And bonding the lower transparent substrate.

The upper glass substrate may be exposed to the outside and directly touched by a user's body part (for example, a finger) or a tip of a touch pen (or a stylus pen).

Therefore, the upper glass substrate may be manufactured using a material having a strength such that scratching or bending does not occur toward the display disposed at the bottom of the touch panel sensor due to external pressure. As the material, for example, tempered glass can be used. However, the material of the upper glass substrate is not necessarily limited to the glass material alone, and the light transmits, the strength is excellent, and the polycarbonate has a strength that is not easily bent and the insulation is not easily broken during use. Reinforced plastics such as may be selected.

The lower transparent substrate may be manufactured using plastic such as polyethylene, polypropylene, acrylic, polyethylene terephthalate (PET), and the like.

On the other hand, in the process of closely contacting the upper glass substrate and the lower transparent substrate described above, the strength is lower compared to the upper glass substrate, and in the case of the lower transparent substrate whose thickness (generally tens to hundreds of micrometers) is very thin, the lower It is virtually difficult to keep the transparent substrate in close contact with the upper glass substrate as a whole, and in order to enlarge the size of the touch panel sensor, it may be more difficult to maintain a constant distance from the upper glass substrate.

If the distance between the upper glass substrate and the lower transparent substrate is not uniform as a whole, the thickness of the optical adhesive layer disposed therein may not be constant, and the optical adhesive layer having an irregular thickness may display an image of the display that is visible from the outside through the touch panel sensor. Optical problems may occur such as bending or irregularizing the contrast.

Therefore, maintaining a constant gap between the upper glass substrate and the lower transparent substrate is an important factor directly connected to producing an optically good product in the touch panel sensor.

In the manufacturing method of the touch panel sensor according to the present invention proposes a solution that can solve the above problems.

First, by providing a plurality of inner transparent spacers disposed two-dimensionally on one surface of any one of the upper glass substrate and the lower transparent substrate, it is possible to maintain both substrates in close contact with each other at regular intervals using the inner transparent spacers.

In addition, as described above, in the state of providing the inner transparent spacer, along the edge of the upper glass substrate or the lower transparent substrate to provide an airtight finish for the airtight between the upper glass substrate and the lower transparent substrate, and to adhere the two substrates It may be. In this case, the upper glass substrate and the lower transparent substrate may be closely contacted with each other by the airtight finish material and the inner transparent spacers at a predetermined interval.

On the other hand, the airtight finishing material is formed with an injection gap and a vacuum gap communicating between the space formed between the upper glass substrate and the lower transparent substrate and the outer space of the airtight finishing material, so that the space is formed by using the vacuum gap while the two substrates are in close contact with each other. Maintaining in vacuum, pressurizing the liquid bonding material for the optical adhesive layer using the injection gap to fill the space with the bonding material, and then curing the filled bonding material to mediate the upper glass substrate and the lower transparent substrate through the bonding material. Can be bonded.

In this case, the liquid bonding material may be provided with the same or similar material as the internal transparent spacer and the optical refractive index, so that the bonding material may be hardened and be integrated with the internal transparent spacer.

In particular, the bonding material has the same or similar optical refractive index as that of the inner transparent spacer, so that the light irradiated from the display disposed on the bottom of the touch panel sensor passes through the hardened optical adhesive layer or passes through the inner transparent spacer. Since both cases have the same or almost similar refraction and light transmittance, there is no optical problem that an image of an externally visible display is bent or irregular in contrast.

In addition, as described above, in a state in which a transparent spacer is provided on one surface of either the upper glass substrate or the lower transparent substrate, a liquid bonding member for the optical adhesive layer is applied to any one of the upper glass substrate and the lower transparent substrate. In the state in which the lower transparent substrate is bent in a direction opposite to the upper glass substrate, the substrate is gradually stretched and bonded to the upper glass substrate, so that the liquid bonding member is evenly applied between the upper glass substrate and the lower transparent substrate. By the spacer, the upper glass substrate and the lower transparent substrate may be in close contact with each other while being spaced apart at predetermined intervals.

Thereafter, the bonding material applied between the upper glass substrate and the lower transparent substrate may be cured to bond the upper glass substrate and the lower transparent substrate through the bonding material.

In this case, as described above, the distance between the two substrates may be uniformly applied by the internal transparent spacers, and the thickness of the optical adhesive layer formed by curing the bonding material may be uniformly uniform between the two substrates.

As described above, by using a liquid bonding material and curing the adhesive material in a state where the bonding material is disposed between both substrates to form an optical adhesive layer, the two substrates to be bonded to each other can be filled without empty space. Since the two substrates are bonded by modifying the bonding material in the liquid state in the state, an empty space is not generated unlike in the case where the two substrates are bonded with the film-like bonding material as in the prior art. Therefore, the optical defect etc. which generate | occur | produce due to the uneven thickness of the bubble or film which arise between board | substrates can be prevented beforehand.

An ultraviolet curing agent may be used as the liquid bonding material, and the ultraviolet curing agent may be exposed to ultraviolet rays to cure the bonding material in a liquid state to form an optical adhesive layer between both substrates.

Meanwhile, the touch panel sensor according to the present invention may include an electrode pattern provided on at least one side of the upper glass substrate and the lower transparent substrate so as to sense the approach of the body, and prevent the electrode pattern from being visible from the outside. To this end, it may include a window decoration provided on the bottom surface of the upper glass substrate.

In this case, ultraviolet rays for curing the ultraviolet curing agent may be covered by the electrode pattern or window decoration, and a part of the ultraviolet curing agent may not be cured.

In this case, in the method of manufacturing a touch panel sensor according to the present invention, ultraviolet rays are irradiated from both sides of the laminate in which both substrates are in close contact with the ultraviolet curing agent, so that the curing of the ultraviolet curing agent can be made uniform.

The manufacturing method of the touch panel sensor of the present invention provides an internal transparent spacer between both substrates to be bonded to each other, so that the distance between both substrates may be uniformly adhered as a whole.

By curing the liquid bonding material disposed between the two substrates to form an optical adhesive layer, there is no gap between the substrates, it is possible to reduce the defects of the touch panel sensor due to bubbles and poor thickness of the adhesive layer.

In the process of curing the liquid bonding material, the liquid bonding material disposed with the liquid bonding material therebetween can be cured by using ultraviolet light on both sides of the substrate to uniformly cure the liquid bonding material as a whole. .

1 is an exploded perspective view illustrating a touch panel sensor according to a first embodiment of the present invention.
2 is a cross-sectional view of the touch panel sensor according to the first embodiment.
3 to 5 are diagrams for describing a method of manufacturing the touch panel sensor illustrated in FIGS. 1 and 2.
6 to 8 are cross-sectional views illustrating a method of manufacturing a touch panel sensor according to a second embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. For reference, in the present description, the same numbers refer to substantially the same elements, and may be described by quoting contents described in other drawings under such a rule, and the contents repeated or deemed apparent to those skilled in the art may be omitted.

Example 1

1 is an exploded perspective view illustrating a touch panel sensor according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view of the touch panel sensor according to the first embodiment.

1 and 2, the touch panel sensor 100 according to the present embodiment may include an upper glass substrate 110, a lower transparent substrate 120, an airtight finish 130, and an optical adhesive layer 140, and an interior thereof. Transparent spacers 150.

The lower transparent substrate 120 is provided on the display, and the upper glass substrate 110 is provided on the lower transparent substrate 120.

The lower transparent substrate 120 may be provided using an insulating transparent material, for example, plastic such as polyethylene, polypropylene, acrylic, polyethylene terephthalate, or the like. It is provided in the form of a thin sheet of about 100 to 150 μm so as to improve the sensitivity of the touch screen pad and not reduce the intensity of light emitted from the display.

The upper glass substrate 110 is a portion that is exposed to the outside is a direct touch of the user. Therefore, the thickness is relatively thicker than the lower transparent substrate 120 at approximately 1 mm or more.

The lower electrode pattern 122 and the upper electrode pattern 112 are provided on the upper surface of the lower transparent substrate 120 and the lower surface of the upper glass substrate 110, respectively. Therefore, a change in capacitance can be detected at the part where the body is touched, and the touch position can be detected.

The patterns 112 and 122 will be described in more detail, corresponding to the upper surface of the lower transparent substrate 120 and the inner side of the upper glass substrate 110 in the lower electrode pattern 122 and the upper electrode pattern 112. The part is provided with a transparent material such as ITO and IZO to generate an electrical signal (for example, a change in capacitance) of the body's approach, and is not visible from the outside.

On the other hand, portions corresponding to the outer side of the upper and upper glass substrates 110 are provided with a non-transmissive material (for example, copper, silver, and metal alloy) to transmit the electrical signal to an external flexible circuit board. have. However, since the portion is formed to be non-transmissive and visible from the outside, the window decoration 111 is provided on the bottom of the upper glass substrate 110 to prevent the non-transmissive portion from being visible.

In addition, an airtight finish 130 and an optical adhesive layer 140 provided inside the airtight finish 130 are disposed between the lower transparent substrate 120 and the upper glass substrate 110. The airtight finish 130 is disposed along edges of the lower transparent substrate 120 and the upper glass substrate 110, and an optical adhesive layer 140 is disposed therebetween, such that the lower transparent substrate 120 and the upper glass substrate 110 are described above. ) Can be bonded optically excellent by the optical adhesive layer 140.

In addition, an inner transparent spacer disposed evenly in two dimensions may be disposed on an upper surface of the lower transparent substrate 120 to maintain the gaps between the substrates 110 and 120 at regular intervals.

Hereinafter, the method of manufacturing the above-described touch panel sensor will be described in detail with reference to FIGS. 3 to 5.

First, the lower transparent substrate 120 and the upper glass substrate 110 are provided, and as shown in FIG. 3, the airtight finish 130 is formed along the upper edge of the lower transparent substrate 120. The airtight finish 130 may use synthetic resin such as silicon. In this embodiment, the airtight finish 130 is provided on the upper surface of the lower transparent substrate 120, but in some cases it may be provided on the bottom surface of the upper glass substrate.

Meanwhile, in the process of forming the hermetic finish 130, the hermetic finish 130 is used to communicate the space formed between the lower transparent substrate 120 and the upper glass substrate 110 with the outer space of the hermetic finish 130. The injection gap 132 and the vacuum gap 134 are formed. In this case, after the gaps 132 and 134 are formed, the airtight finish 130 may not overlap with the electrode patterns 112 and 122 so as not to overlap the electrode patterns 112 and 122. It is preferable to provide on the outside.

In the present embodiment, the injection gap 132 and the vacuum gap 134 are provided as portions in which the airtight finish 130 is partially removed. However, in some cases, the gap may be formed by forming a hole in the airtight finish itself. However, since the thickness of the airtight finish material is very thin, about tens of micrometers, it is preferable that the gaps 132 and 134 are provided using a portion where the airtight finish material 130 is not formed.

In addition, by placing a myriad of liquid ultraviolet curable resin 155 in the form of dots two-dimensionally on the upper surface of the lower transparent substrate 120 in the airtight finish 130, and cured by using ultraviolet rays, the internal transparent A spacer 150 is provided.

For reference, the present invention is not limited by the order in which the airtight finish 130 and the inner transparent spacer 150 are provided, and which one is formed first may be determined according to a manufacturer's choice.

The airtight finish 130 for the airtight between the lower transparent substrate 120 and the upper glass substrate 110 is provided to the lower transparent substrate 120, and also the lower transparent substrate 120 and the upper glass substrate 110 After providing the inner transparent spacer 150 on the lower transparent substrate 120 to maintain the gap evenly, as shown in FIG. 4, the lower transparent substrate 120 and the upper glass substrate 110 are brought into close contact with each other. . In this case, the lower transparent substrate 120 and the upper glass substrate 110 may be closely adhered to each other by the internal transparent spacer 150 evenly disposed therebetween, with the gap being constantly maintained over the entire surface.

The lower transparent substrate 120 and the upper glass are spaces formed between the lower transparent substrate 120 and the upper glass substrate 110 through the injection gap 132 and the vacuum gap 134 provided by the airtight finish 130. The bonding material in a liquid state for bonding the substrate 110 is filled.

In the process of filling the bonding material in a liquid state, the bonding material may be pressurized and introduced into the injection gap, and at the same time, the vacuum is maintained using the vacuum gap 134 to maintain the space in the vacuum, and the bonding material is in every corner of the space. It can be introduced well, and at the same time it can be introduced quickly.

In this case, when the space is maintained in a vacuum, the lower transparent substrate 120 having a relatively thin and inferior strength tends to be bent by the upper glass substrate 110 when compared with the upper glass substrate 110, which is lower transparent. The bending may be prevented by the internal transparent spacer 150 disposed on the entire surface of the substrate 120. Accordingly, a liquid bonding material having a uniform thickness may be filled between both substrates 110 and 120.

As such a liquid bonding material introduced into the space by using an ultraviolet curing agent, as shown in Figure 5, by curing the liquid bonding material by exposure to ultraviolet rays, the lower transparent substrate 120 and the upper glass substrate 110 An optical adhesive layer can be formed in between.

On the other hand, when irradiating ultraviolet light to the bonding material in a liquid state, both substrates 110 and 120 are prevented from being partially hardened by the electrode patterns 112 and 122 or the window decoration 111. Irradiation of ultraviolet rays allows the curing of the ultraviolet curing agent to be uniform.

At this time, the liquid bonding material is provided with the same or similar optical refractive index and the internal transparent spacer 150, the bonding material can be integral with the internal transparent spacer 150 while curing.

In particular, the bonding material has the same or similar optical refractive index as the internal transparent spacer 150, so that light irradiated from the display disposed at the bottom of the touch panel sensor 100 passes through the optical adhesive layer 140 on which the bonding material is cured. In the case of passing through the inner transparent spacer 150, the same or almost similar refraction and light transmittance do not cause an optical problem in which an image of the externally visible display is curved or irregular in contrast.

Example 2

6 to 8 are cross-sectional views illustrating a method of manufacturing a touch panel sensor according to a second embodiment of the present invention.

First, the components of the touch panel sensor 200 shown in FIG. 8 are mostly similar to the components of the touch panel sensor 100 according to the previous embodiment, and specifically, the touch panel sensor 200 according to the present embodiment. ) Includes an upper glass substrate 210, a lower transparent substrate 220, an optical adhesive layer 240, and an inner transparent spacer 250. Here, the description of the components may refer to the foregoing embodiment, and the present embodiment will be described in detail with respect to a manufacturing method that differs from the foregoing embodiment.

The lower transparent substrate 220 is provided on the display, and the upper glass substrate 210 is provided on the lower transparent substrate 220.

For reference, in order to explain the manufacturing process of the touch panel sensor 200 according to the present embodiment, in the drawing, the upper glass substrate 210 is disposed on the bottom, and the lower transparent substrate 220 is disposed on the upper portion, thereby closely contacting it. And the bonding process, but the touch panel sensor 200 completed through the above process can be disposed on the display by flipping the upper glass substrate 210 is located on the upper portion of the lower transparent substrate 220. Accordingly, the top, bottom, top, and bottom described in the detailed description below may vary relative.

The lower electrode pattern 232 and the upper electrode pattern 222 are provided on the bottom surface of the lower transparent substrate 230 and the upper surface of the upper transparent film 220, respectively.

Here, an optical adhesive layer 240 may be interposed between the upper glass substrate 210 and the lower transparent substrate 220 to electrically insulate both electrode patterns 232 and 222.

In addition, an internal transparent spacer 250 is provided between the upper glass substrate 210 and the lower transparent substrate 220.

Hereinafter, the method of manufacturing the above-described touch panel sensor will be described in detail.

First, as shown in FIG. 6, a lower transparent substrate 220 and an upper glass substrate 210 are prepared. At this time, the lower electrode pattern 222 and the upper electrode pattern 212 are already formed on each of the substrates 210 and 220, and a myriad of liquid ultraviolet curable resins are formed on the upper surface of the upper glass substrate 210 in the form of dots. Placed two-dimensionally, it is cured using ultraviolet light to provide an inner transparent spacer 250.

Thereafter, the liquid bonding material 245 is coated on the upper surface of the upper glass substrate 210, and the lower transparent substrate 220 is gradually curved while being bent in a direction opposite to the upper glass substrate 210. By sequentially bonding to the glass substrate 210, the liquid bonding member 245 is evenly applied between the upper glass substrate 210 and the lower transparent substrate 220. In this case, as shown in FIG. 7, both substrates 210 and 220 have a liquid bonding material 245 therebetween, and the upper glass substrate 210 and the lower transparent substrate are interposed by the inner transparent spacer 250. The 220 are in close contact with each other in a state spaced apart at predetermined intervals. For reference, in the present embodiment, the liquid bonding member 245 uses an ultraviolet curable resin.

In addition, in the present exemplary embodiment, the liquid bonding material 245 is applied to the upper surface of the upper glass substrate 210, but the liquid bonding material may be provided on the lower transparent substrate.

Subsequently, as shown in FIG. 8, in order to cure the liquid bonding material 245, ultraviolet rays are irradiated from the upper and lower portions of both substrates 210 and 220 to cure the liquid bonding material 245. The optical adhesive layer 240 is formed.

At this time, by irradiating ultraviolet rays from the upper and lower portions of both substrates 210 and 220, a portion of the bonding material 245 in the liquid phase is fixed by the electrode patterns 212 and 22 or the window decoration 211 as in the previous embodiment. Can be prevented.

At this time, since the internal transparent spacer 250 and the optical adhesive layer 240 described above all use the ultraviolet curable resin of the same material, the liquid bonding material 245 for the optical adhesive layer 240 is cured to form the internal transparent spacer 250. ) And optical properties such as refractive index or transmittance of light in the cured state may be similar to the internal transparent spacer 250.

Therefore, when the light emitted from the display disposed on the bottom of the touch panel sensor 200 passes through the optical adhesive layer 240 or passes through the internal transparent spacer 250, the light having the same or almost similar refractive and light transmittance may be obtained. Therefore, the optical problem that the image of the display visible from the outside is not bent or the contrast is not generated, and by bonding the two substrates (210, 220) in a state in which the bonding material in the liquid phase, and by curing and bonding them, The generation of bubbles between the substrates 210 and 220 can be minimized.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

100: touch panel sensor 110: upper glass substrate
120: lower transparent substrate 130: airtight finish
140: optical adhesive layer 150: internal transparent spacer

Claims (8)

In the manufacturing method of the touch panel sensor to detect the contact of the body including an upper glass substrate, a lower transparent substrate disposed on the bottom of the upper glass substrate, and an optical adhesive layer formed between the upper glass substrate and the lower transparent substrate. ,
Providing a plurality of internal transparent spacers disposed two-dimensionally on one surface of either the upper glass substrate or the lower transparent substrate in order to maintain a constant distance between the upper glass substrate and the lower transparent substrate;
Contacting the upper glass substrate and the lower transparent substrate to each other while being spaced at a predetermined interval by the inner transparent spacers; And
Bonding the upper glass substrate and the lower transparent substrate to form the optical adhesive layer;
Method of manufacturing a touch panel sensor comprising a. The method of claim 1,
The step of closely contacting the upper glass substrate and the lower transparent substrate,
Providing an airtight finish for airtightness between the upper glass substrate and the lower transparent substrate along an edge of the upper glass substrate or the lower transparent substrate,
And the upper glass substrate and the lower transparent substrate are in close contact with each other by the hermetic finishing material and the inner transparent spacer, spaced apart at predetermined intervals. The method of claim 2,
Bonding the upper glass substrate and the lower transparent substrate,
An injection gap and a vacuum gap are formed to communicate the space formed between the upper glass substrate and the lower transparent substrate with the airtight finish material and the outer space of the airtight finish material.
The vacuum gap is used to maintain the space in vacuum, and the injection gap is used to press the liquid bonding material for the optical adhesive layer to fill the space with the bonding material,
And curing the filled bonding material to bond the upper glass substrate and the lower transparent substrate through the bonding material. The method of claim 1,
The step of closely contacting the upper glass substrate and the lower transparent substrate,
Applying a liquid bonding member for the optical adhesive layer on any one of the upper glass substrate and the lower transparent substrate,
The lower transparent substrate is gradually bent in a state opposite to the upper glass substrate and gradually bonded to the upper glass substrate so that the liquid bonding member is evenly applied between the upper glass substrate and the lower transparent substrate. As far as possible
And the upper glass substrate and the lower transparent substrate are in close contact with each other by the internal transparent spacers at predetermined intervals. The method of claim 4, wherein
Bonding the upper glass substrate and the lower transparent substrate,
And curing the coated bonding material to bond the upper glass substrate and the lower transparent substrate to each other via the bonding material. The method according to claim 3 or 5,
The bonding material is provided of a material having the same or similar optical refractive index as the inner transparent spacer,
And the bonding material is cured to form an integrated body with the inner transparent spacer. The method according to claim 3 or 5,
The internal transparent spacer and the bonding material is a manufacturing method of the touch panel sensor, characterized in that using the ultraviolet curable resin. The method of claim 7, wherein
In the case of curing the bonding material,
By irradiating ultraviolet rays from both the upper glass substrate and the lower transparent substrate,
An electrode pattern provided on at least one of the upper glass substrate and the lower transparent substrate to generate a signal corresponding to the contact of the body, and to prevent the electrode pattern from being visible from the outside, A method of manufacturing a touch panel sensor, characterized in that a portion of the bonding material is prevented from being uncured by window decoration provided on a bottom surface.
KR1020100052457A 2010-06-03 2010-06-03 Method of manufacturing touch panel sensor KR20110132875A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150051019A (en) * 2013-11-01 2015-05-11 삼성디스플레이 주식회사 Touch screen panel and method for manufacturing the same
KR20150102563A (en) * 2014-02-28 2015-09-07 (주)삼원에스티 Touch panel sensor and manufacturing method of the same
US9886113B2 (en) 2015-01-14 2018-02-06 Samsung Display Co., Ltd. Display device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150051019A (en) * 2013-11-01 2015-05-11 삼성디스플레이 주식회사 Touch screen panel and method for manufacturing the same
KR20150102563A (en) * 2014-02-28 2015-09-07 (주)삼원에스티 Touch panel sensor and manufacturing method of the same
US9886113B2 (en) 2015-01-14 2018-02-06 Samsung Display Co., Ltd. Display device

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