KR20150071994A - Method for Manufacturing Touch Screen Panel - Google Patents

Method for Manufacturing Touch Screen Panel Download PDF

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Publication number
KR20150071994A
KR20150071994A KR1020130159181A KR20130159181A KR20150071994A KR 20150071994 A KR20150071994 A KR 20150071994A KR 1020130159181 A KR1020130159181 A KR 1020130159181A KR 20130159181 A KR20130159181 A KR 20130159181A KR 20150071994 A KR20150071994 A KR 20150071994A
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KR
South Korea
Prior art keywords
glass
protective layer
black mask
forming
polishing
Prior art date
Application number
KR1020130159181A
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Korean (ko)
Inventor
강경문
Original Assignee
주식회사 일성에프에이
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Publication date
Application filed by 주식회사 일성에프에이 filed Critical 주식회사 일성에프에이
Priority to KR1020130159181A priority Critical patent/KR20150071994A/en
Publication of KR20150071994A publication Critical patent/KR20150071994A/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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

The present invention relates to a method of manufacturing a touch screen panel having a higher productivity, comprising a masking step of printing a black mask on an original glass plate reinforced on both sides thereof, a patterning step of forming a sensing pattern on one surface of the black mask- Forming a protective layer on an area where both surfaces of the glass on which the sensing pattern is formed are not to be etched; exposing the glass with the protective layer to a corrosive agent so that a portion of the glass where the protective layer is not formed is melted There is provided a method of manufacturing a touch screen panel including an etching step of dividing a disc glass into individual unit panels and a polishing step of polishing the side surface of the unit panel divided in the etching step.

Description

TECHNICAL FIELD [0001] The present invention relates to a method for manufacturing a touch screen panel,

The present invention relates to a method of manufacturing a touch screen panel that is more productive.

The touch screen panel is an input device that allows a user to input a command by selecting an instruction displayed on a screen of a video display device or the like as a human hand or an object.

To this end, the touch screen panel is provided on the front surface of the image display, and converts a touch position directly touching a human hand or an object into an electrical signal. Accordingly, the instruction content selected at the contact position is accepted as the input signal.

Since the touch screen panel can replace a separate input device connected to the image display device such as a keyboard and a mouse, the use range of a mobile phone or a tablet is widely spread.

Such a touch screen panel is used as a method of grinding a cut side of each glass after cutting the original glass into individual pieces, and reinforcing the cut side of each glass to form a sensing pattern.

In addition, a method of forming the sensing pattern is a method of attaching an ITO film on which a sensing pattern is formed on the back side of a single glass or a glass on which an ITO sensing pattern is formed.

However, this method has the following problems.

First, after the original glass is cut into individual pieces, the reinforcing process and the sensing pattern must be formed for each individual glass, so that the work efficiency is greatly increased and the productivity is lowered.

Second, since the ITO film or the ITO glass is attached to the back surface of the glass of the touch screen panel, the thickness of the touch panel is limited.

Third, when the ITO film is attached to the back surface of the glass of the touch screen panel, defects due to bubbles may occur.

Fourth, after the original glass is cut and divided into unit panels, it is necessary to polish the side faces of the unit panel. Conventionally, the tool recognizes the side edge of the unit panel and polished without any additional reference point. However, when the disk glass is divided by chemicals or the like, the side surface is not uniform and is not suitable as a reference point, and the accuracy of the polishing is decreased.

Korean Patent Publication No. 10-2011-0110560

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of manufacturing a touch screen panel in which the productivity is greatly improved, the thickness of the touch panel is reduced, and the yield is improved.

Another object of the present invention is to provide a manufacturing method of a touch screen panel capable of improving the precision of polishing.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present invention, there is provided a method of manufacturing a black mask, comprising the steps of: masking a black mask on an original glass plate having both sides thereof reinforced; patterning the pattern to form a sensing pattern on one side of the glass Forming a protective layer on a surface of the glass on which the sensing pattern is formed, the protective layer being formed on the surface of the glass, the protective layer being formed on the glass, And an abrasive step of abrading the side surface of the unit panel divided in the etching step. The present invention also provides a method of manufacturing a touch screen panel, comprising the steps of:

The protective layer forming step may include a laminating step of laminating a protective layer on both sides of the disc glass, and a scrubbing step of removing a region corresponding to each of the laminating protective layers.

Alternatively, the protective layer forming step may be a step of applying a protective ink to an area where both surfaces of the glass are not etched.

The polishing step may be a step of polishing the side surface of the unit panel with the edge of the black mask printed in the masking step as a reference point.

The method may further include a healing step of healing the non-reinforced section exposed by the etching.

In addition, the patterning step may include a step of forming a pattern by sputtering ITO on one surface of the disc glass at least once.

The method of claim 1, further comprising forming an alignment mark on an area corresponding to each unit panel of the original glass, wherein the polishing step includes the steps of: The side can be polished.

In addition, the patterning step and the protective layer forming step may be performed by recognizing the edge of the black mask printed in the masking step as a reference point.

The touch screen panel manufacturing method of the present application has the following effects.

First, since the reinforcing operation and the plurality of black masks and sensing patterns are formed at one time on the original glass before cutting into a single sheet, the productivity can be improved by reducing the number of operations.

Second, since the original glass is separated into individual glass at a time by etching, the productivity can be improved by reducing the work flow.

Third, since the sensing pattern is not formed on a separate film or glass but directly formed on the reinforced glass, there is no need to attach or provide a separate film or glass, so that the thickness of the touch panel can be reduced, There is a possible effect.

Fourth, since there is no need to attach the ITO film to the glass, there is an effect that the yield is improved by eliminating the possibility that bubbles are generated.

Fifth, since the patterning step, the protective layer forming step, and the polishing step are performed by recognizing certain reference points, the accuracy can be improved.

Sixth, it is not necessary to form a separate alignment mark, and it is possible to work with a corner of the transparent area of the inner square shape of the black mask as a reference point, so that it is not necessary to separately generate the alignment mark, .

The effects of the present application are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

The foregoing summary, as well as the detailed description of the preferred embodiments of the present application set forth below, may be better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, there are shown preferred embodiments in the figures. It should be understood, however, that this application is not limited to the precise arrangements and instrumentalities shown.
1 is a flowchart illustrating a method of manufacturing a touch screen panel according to the present invention;
FIG. 2 is a perspective view showing a disc glass on which a masking step of FIG. 1 is performed; FIG.
FIG. 3 is a flow chart showing an example of the procedure of forming the protective layer in FIG. 1;
FIG. 4 is a perspective view showing a disc glass in a state where the laminating step of FIG. 3 is performed; FIG.
FIG. 5 is a perspective view showing a disc glass in a state where the scrubbing step of FIG. 3 is performed; FIG.
FIG. 6 is a perspective view showing a disc glass in a state in which a protective layer is printed by another example of the protective layer shape step in FIG. 1; FIG.
FIG. 7 is a perspective view showing a disc glass on which the etching step of FIG. 1 is performed; FIG.
8 is a side view of Fig. 7;
FIG. 9 is a side view showing a single unit panel in which the etching step of FIG. 1 is performed; FIG.
FIG. 10 is a side view showing a single unit panel in which the polishing step of FIG. 1 is performed; FIG.
11 is a perspective view of Fig. 10; Fig. And,
FIG. 12 is a side view showing a single unit panel in a state in which the polishing step of FIG. 1 is performed. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.

1, a masking step S120, a patterning step S130, a protective layer forming step S140, an etching step S150, and a polishing step S160 are performed. .

Prior to performing the masking step (S120), an original glass sheet having both surfaces strengthened can be prepared.

In the present embodiment, the disc glass may mean disc glass before it is cut into individual glasses (unit panels).

Prior to performing the masking step S120, the original glass may be strengthened (S110) on the front side and the rear side. The strengthening treatment may be performed by immersing the disc glass in a KNO 3 solution and then heating to replace the sodium component present on the surface of the glass substrate with a potassium component.

Of course, the present invention is not limited to this, and a separate strengthening treatment may not be required when the original glass has sufficient strength.

The masking step S120 is a step of printing the black mask 110 on the disc glass 100. [

In the masking step S120, as shown in FIG. 2, a screen 210 on which a pattern is formed such that only the portion to be printed with the black mask 110 is exposed on the mesh-shaped screen 210, The black mask 110 can be formed by a silk screen printing method using the frame 200 provided.

That is, when the disc glass 100 is placed on the lower side of the frame 200, ink is supplied to the screen 210, and the ink is pushed into the squeegee 220, The black mask 110 may be formed by printing on the disc glass 100. A plurality of the black masks 110 may be formed on the disc glass 100.

Of course, the present invention is not limited to the case where the black mask 110 is printed by the silk screen printing method, and the black mask 110 may be formed by other methods.

In this case, the black mask 110 is formed such that the area where the screen is to be formed is transparent and the rim portion thereof is opaque. The area where the screen is to be formed may take the form of a rectangle or a square.

The patterning step S130 is a step of forming a sensing pattern (not shown) of the touch screen panel on one surface of the disc glass 100 on which the black mask 110 is formed.

In this embodiment, the sensing pattern will be described by taking as an example ITO (Indium Tin Oxide) formed by a sputtering method.

For example, the sensing pattern may be formed by performing a process of sputtering ITO on one surface of the disk glass to form a pattern at least once.

That is, ITO is formed in an X-axis pattern by a sputtering method for each portion where a sensing pattern of an area where each black mask 110 of the original glass 100 is formed is formed, and then a Y-axis The pattern may also be formed by a sputtering method of ITO.

When the sensing pattern is directly formed on the disc glass by the sputtering method as described above, the thickness of the touch screen panel can be reduced, and there is no need to attach a film or the like.

A method of forming a sensing pattern by the sputtering method in the patterning step S 130 as described above has been well known and will not be described in detail.

Meanwhile, the protective layer forming step S140 is a step of forming a protective layer 120 on an area where both surfaces of the disc glass 100 on which the sanding pattern is formed are not etched.

The protective layer forming step (S140) may include a laminating step (S142) and a scrubbing step (S144) as shown in FIG.

The laminating step S142 is a step of laminating the protective layer 120 on both sides of the disc glass 100 as shown in FIG. At this time, the protective layer 120 may be made of a material which is very resistant to corrosion such as Teflon, and may be adhered to both surfaces of the disc glass 100 so as to be adhesive like a tape.

5, the scrubbing step S144 is performed by a scrubber or a separate cutting device (not shown) to protect the area corresponding to the portion to be etched in the protective layer 120 formed in the laminating step S142 Removing the layer.

Accordingly, the protective layer 120 is left only on the portion where the etching is not performed. Generally, the protection layer 120 is formed in the area where the black mask 110 and the sensing pattern are formed. The protective layer may be removed such as the area 112 to be formed or the area 114 where the speaker hole is to be formed.

In addition, the protective layer forming step (S140) may be performed by applying protective ink, as shown in FIG.

As shown in FIG. 6, the frame 310 having the screen 310 on which the protective layer is to be printed is exposed only on the mesh-shaped screen 310 and the other part is covered with the screen 310, The protective layer can be formed by a printing method.

Of course, at this time, the screen may be closed such that the area 112 where the button is to be provided or the area 114 where the speaker hole is to be formed is not formed.

That is, the protective glass may be coated after the disc glass 100 having the sensing pattern formed on the lower side of the frame 300 is positioned. The protective ink may be made of a substance resistant to a corrosive liquid such as hydrofluoric acid.

Of course, the present invention is not limited to the case where the protective layer 120 is printed by a silk screen printing method, and the protective layer 120 may be formed by other methods.

In the etching step S150, the disc glass 100 on which the protective layer 120 is formed is exposed to the corrosive agent 130 so that the portion of the disc glass 100 on which the protective layer is not formed is melted by the corrosive agent 130 It may be a step of dividing the disc glass 100 into the respective unit panels 150.

7 and 8, when the corrosive agent 130 such as hydrofluoric acid is sprayed or immersed in a corrosive agent, the protective layer 120 is formed on the disc glass 100 having the protective layer 120 formed thereon The original glass 100 is melted and can be divided into the respective unit panels 150 as shown in FIG. In addition, the area 112 where the button without protective layer is to be provided and the area 114 where the speaker hole is to be formed can also be melted by the caustic agent 130 to form a hole.

After the disc 100 is divided into the unit panels 150, the caustic material 130 and the protective layer 120 may be removed through a cleaning process or the like.

At this time, the side surface 152 of the unit panel 150 divided by the caustic agent 130 may be smooth and rough.

10, in the polishing step S160, the side surface 152 of the unit panel 150 divided in the etching step S150 as a tool such as the grinder 160, The inner circumferential surface of the hole formed with the groove 112 and the region 114 where the speaker hole is to be formed.

11, any one point of the black mask 110 formed in the masking step S120 may be used as a reference point 154 to polish the side surface of the unit panel 150, can do.

At this time, the reference point 154 can recognize any one of the edges of the inner transparent square area of the black mask 110 as the reference point 154 without using a separate alignment mark.

Of course, the grinder 160 receives information about a vision camera (not shown) capable of recognizing the reference point 154 and distances for angles up to the rim based on the reference point 154, The grinder 160 can be moved.

Alternatively, if a specific point of the black mask 110 can not be utilized as the reference point 154, an alignment mark forming step S125 for forming a separate alignment mark 156 may be further performed.

The alignment marks forming step S125 may be a step of forming a separate alignment mark 156 for each area corresponding to each unit panel 150 of the original glass plate 100. [

The alignment mark formation step S125 may be performed after the masking step S120, or may be performed before the masking step S120, as shown in FIG. Of course, the alignment mark 156 may also be printed when the black mask 110 is printed in the masking step S120.

As described above, the grinder 160 is provided with a vision camera (not shown) capable of recognizing the alignment marks 156 and a distance sensor 160 And the grinder 160 can be moved based on the information.

Therefore, the side surface of the unit panel 150 can be more accurately polished.

Of course, not only the polishing step (S160) but also the scrubbing step (S144) of the patterning step (S130) and the protective layer forming step (S140) may be performed in the inner transparent square shape of the black mask 110 formed in the masking step The work can be performed by using any one of the edges of the region as the reference point 154. That is, the edge of the black mask 110 is performed instead of the function of the alignment mark without a separate alignment mark.

Of course, when a specific point of the black mask 110 can not be utilized as the reference point 154, a separate alignment mark 156 may be formed and an operation may be performed based on the alignment mark 156 There will be.

On the other hand, as shown in FIG. 12, the side of the side surface 152 that is etched or polished in the etching step (S150) and the polishing step (S160) is exposed, Cracks may be present, and such microcracks may cause breakage of the unit panel 150 even in a small impact.

Accordingly, in this embodiment, a healing step (step S170) for healing the non-reinforced surface may be further performed.

In the healing step (S170), the chemical solution is contacted with the non-strengthened surface to remove the micro cracks or gently depressing the sharp inner portion of the micro cracks.

The chemical solution may include an inorganic acid and an ammonium based additive based on hydrofluoric acid.

By performing the healing step (S170), cracks existing on the non-reinforced surface can be removed, thereby improving the strength of the unit panel 150. [

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them. Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

100: original glass 110: black mask
120: Protective layer 130:
150: unit panel 200: frame
210: Screen 220: Squeegee
300: frame 310: screen
S120: masking step S130: patterning step
S140: Protective layer forming step S142: Lamination step
S144: scrubbing step S150: etching step
S160: Polishing step S170: Healing step

Claims (8)

A masking step of printing a black mask on a disc glass;
A patterning step of forming a sensing pattern on one surface of the glass on which the black mask is formed;
Forming a protective layer on an area where both surfaces of the glass on which the sensing pattern is formed are not etched;
An etching step of exposing the glass on which the protective layer is formed to a corrosive agent to dissolve a portion of the glass in which no protective layer is formed by the corrosive agent to divide the glass plate into individual unit panels;
And polishing the side surface of the unit panel divided in the etching step. The method according to claim 1,
The protective layer forming step may include:
A laminating step of laminating a protective layer on both sides of the disc glass;
A scrubbing step of removing a region corresponding to a portion to be etched in the lynched protective layer;
≪ / RTI > The method according to claim 1,
The protective layer forming step may include:
And applying a protective ink to an area where both surfaces of the glass are not to be etched. The method according to claim 1,
Wherein the polishing step polishes the side surface of the unit panel with the edge of the black mask printed at the masking step as a reference point. The method according to claim 1,
The mask glass is subjected to a masking step in a state where both surfaces are strengthened,
Further comprising the step of healing the unreinforced side exposed by the etch. The method according to claim 1,
Wherein the patterning step comprises:
Wherein at least one step of sputtering ITO on one surface of the disc glass to form a pattern is performed at least once. The method according to claim 1,
Further comprising an alignment mark forming step of forming an alignment mark in an area corresponding to each unit panel of the original glass,
Wherein the polishing step polishes a side surface of the unit panel with the alignment mark printed at the mark formation step as a reference point. The method according to claim 1,
The patterning step and the protective layer forming step may include:
Wherein a black mask printed at the masking step is recognized as a reference point and an operation is performed.
KR1020130159181A 2013-12-19 2013-12-19 Method for Manufacturing Touch Screen Panel KR20150071994A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106648274A (en) * 2016-12-31 2017-05-10 江西省平波电子有限公司 Capacitive touch screen cover plate and production process thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106648274A (en) * 2016-12-31 2017-05-10 江西省平波电子有限公司 Capacitive touch screen cover plate and production process thereof

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