KR20130015533A - A touch screen panel manufacturing method - Google Patents

A touch screen panel manufacturing method Download PDF

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Publication number
KR20130015533A
KR20130015533A KR1020110077574A KR20110077574A KR20130015533A KR 20130015533 A KR20130015533 A KR 20130015533A KR 1020110077574 A KR1020110077574 A KR 1020110077574A KR 20110077574 A KR20110077574 A KR 20110077574A KR 20130015533 A KR20130015533 A KR 20130015533A
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KR
South Korea
Prior art keywords
pattern layer
sensor pattern
cutting
ink
touch screen
Prior art date
Application number
KR1020110077574A
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Korean (ko)
Inventor
박인규
김일환
Original Assignee
(주)제이콥스
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Publication date
Application filed by (주)제이콥스 filed Critical (주)제이콥스
Priority to KR1020110077574A priority Critical patent/KR20130015533A/en
Publication of KR20130015533A publication Critical patent/KR20130015533A/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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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 screen panel is provided to improve productivity and reduce a failure rate by laminating a sensor pattern layer on a glass disk and an individual window substrate through cutting/processing in a state that ink printing is applied to the sensor pattern layer. CONSTITUTION: Separated tempered glasses are washed and dried and a location reference mark is formed on a surface of a glass disk(S10). Glass disks are arranged by recognizing the location reference mark before processing. A sensor pattern layer is deposited on the surface of the glass disk and ink is printed on a surface of the sensor pattern layer(S30). The printed glass disk is cut/processed into desired shape window substrates and the ink printing is removed(S50). [Reference numerals] (AA) Start; (BB) End; (S10) Forming a reference position mark on a glass disk; (S20) Aligning the position and depositing a sensor pattern layer on the glass disk; (S30) Aligning the position and printing ink on the sensor pattern layer; (S40) Aligning the position and cutting the ink-printed glass disk into a plurality of window substrates; (S50) Removing the ink printing from the window substrates

Description

Manufacturing method of touch screen panel {A TOUCH SCREEN PANEL MANUFACTURING METHOD}

The present invention relates to a method of manufacturing a touch screen panel, and more particularly, to a method of manufacturing an integrated touch screen panel by collectively depositing a conductive material or an insulating material on a window substrate.

In general, a touch screen is widely used for various display devices and mobile devices as an input device for recognizing a user's touch on a screen of a display.

The touch screen is applied with various recognition technologies and structures such as resistive film type, capacitive type, and ultrasonic type. Recently, capacitive touch screens are gradually expanding their range of application, drawing attention for their advantages such as multi-touch input and excellent durability. The capacitive touch screen recognizes a user's touch and a position to which a touch is applied by using a sensor pattern formed of a transparent conductive material such as indium tin oxide (ITO) on a rear surface of a window (also called a cover lens).

1 illustrates a cross-sectional structure of a conventional capacitive touch screen panel. Referring to FIG. 1, a conventional capacitive touch screen is a transparent sensor substrate 30 attached to a rear surface of a window substrate 10 made of acrylic or glass material by an transparent adhesive layer 20 such as an optically clear adhesive (OCA). )

On one surface of the transparent sensor substrate 30 made of polyethylene terephthalate (PET) or glass, a sensor pattern layer 31 including a transparent conductive material such as ITO and metal wiring is formed.

In the capacitive touch screen panel having such a structure, the FPCB 40 on which the sensor IC 50 is mounted is attached to the transparent sensor substrate 30 by an anisotropic conductive film (ACF) or an anisotropic conductive paste (ACP). As a result, individual sensor electrodes constituting the sensor pattern layer 31 are electrically connected to the respective sensor pins of the sensor IC 50.

However, the capacitive touch screen panel having the above structure is necessarily subjected to a process of attaching the transparent sensor substrate 30 to the window substrate 10 with the transparent adhesive layer 20 in the manufacturing process, and the defective rate in the attaching process, which is the final process. Because of this considerable level, there are certain limitations in reducing manufacturing costs. Thus, in order to overcome this limitation, a window-integrated touch screen panel having a structure as shown in FIG. 2 has been proposed. (Korean Patent Application No. 2008-0083724)

Unlike the conventional structure described above, the touch screen panel of FIG. 2 directly forms the sensor pattern layer 35 using a technique of depositing a transparent conductive material on the back surface of the window substrate 10. Since the window-integrated touch screen panel shown in this drawing does not include the transparent adhesive layer 20 and the transparent sensor substrate 30, the raw material cost is reduced, and the overall panel manufacturing yield is improved by a simplified process, thereby greatly increasing the manufacturing cost. It has the advantage of being saved.

As shown in FIG. 2, in the case of the touch screen panel manufactured by forming only the sensor pattern layer 35 on the window substrate 10, after forming the sensor pattern layer 35 directly on the glass original plate as a whole, the individual windows It is produced by cutting according to the shape of the substrate.

However, in this case, when cutting the glass disc, a wet cutting method using water and an abrasive is used to soften the cut surface and prevent thermal deformation, and the abrasive is applied to the sensor pattern layer 35 deposited in advance in the cutting process. There is a problem that a scratch is generated by the failure rate increases.

In order to solve this problem, conventionally, as shown in Figs. 3 and 4a, the glass original plate was cut according to the shape of the individual window substrate and cut into the individual window substrate 1 (S1).

Then, the individual window substrates 1 are seated on the seating portions 2a on the platform 2 having the plurality of seating portions 2a, as shown in FIG. 4B (S2).

Next, a plurality of touch screen panels were manufactured by depositing a sensor pattern layer on one surface of a plurality of individual window substrates 1 mounted on the platform 2 (S3).

However, in the conventional touch screen panel manufacturing method described with reference to FIGS. 3 to 4B, the sensor pattern layer is simultaneously deposited while the plurality of individual window substrates 1 are seated on the platform 2. When a failure occurs in the deposition process of the sensor pattern layer, a failure occurs in all the individual window substrates 1 seated on the platform 2, there is a problem that must be treated as a whole. That is, it is not easy to manufacture the sensor pattern layer ITO by matching all of the plurality of individual window substrates 1 in one operation. Since there is a need to dispose of them, there is a problem in that the economic loss is large.

The present invention has been made in view of the above, and provides a method of manufacturing a touch screen panel which is improved to improve productivity by forming a sensor pattern layer directly on a glass disc and cutting it into individual window substrates without damage. Its purpose is to.

Method of manufacturing a touch screen panel of the present invention for achieving the above object comprises the steps of depositing a sensor pattern layer on the surface of the glass disc; Ink printing a surface of the sensor pattern layer; Cutting the ink printed glass disc into a plurality of window substrates having a desired shape; Removing the ink printing; And cleaning and drying the separated tempered glasses.

Here, in the separating step, it is preferable to separate the cut window substrate by removing the ink printing using an aqueous solution.

In addition, the step of cutting, it is preferable to use a wet cutting device for cutting and spraying by mixing the abrasive and water.

In addition, the step of cutting, it is preferable to cut the ink-printed glass disc using a laser.

In addition, forming a positioning reference mark on the surface of the glass disc; And recognizing and aligning the positioning reference mark before processing the glass disc.

According to the manufacturing method of the touch screen panel of the present invention, a sensor pattern layer is laminated on a glass disc, and in the state in which ink printing is applied to the sensor pattern layer, cutting is performed to generate individual window substrates. Compared with the process of depositing the sensor pattern layer, the defect rate can be lowered to improve productivity, and the occurrence of defects can be reduced to reduce economic losses.

That is, since the machining position of the sensor pattern layer can be easily matched to the glass original plate, it is difficult to match the machining position of the sensor pattern layer with respect to the individual window glass, thereby remarkably reducing the defects and increasing the productivity. Can be.

1 and 2 are views for explaining a conventional touch screen panel manufacturing method.
3 is a flowchart illustrating another conventional touch screen panel manufacturing method.
4A and 4B are schematic views illustrating a process of manufacturing a touch screen panel by the conventional method illustrated in FIG. 3.
5 is a flowchart illustrating a touch screen panel manufacturing method according to an exemplary embodiment of the present invention.
6A is a view illustrating a state in which a position recognition mark is formed on a glass disc.
6B is a view illustrating a state in which a sensor pattern layer is deposited on a glass disc.
FIG. 7 is a view for explaining a process of ink printing on the sensor pattern layer of the glass master of the state of FIG.
8 and 9 are views for explaining a process of cutting the ink-printed glass disc.
10 is a view for explaining a method of removing ink printing.

Hereinafter, a method of manufacturing a touch screen panel according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

5 to 7, in the method of manufacturing a touch screen panel according to an embodiment of the present invention, forming a reference position mark 111 on the surface of the glass original plate 110 (S10) and the glass original plate 110. Forming a sensor pattern layer 120 on the surface of the (S20), and forming an ink printing 130 on the outside of the sensor pattern layer 120 (S30), and the sensor pattern layer 120 and The step S40 of cutting the glass disc 110 on which the ink printing 130 is formed into the window substrate 100 having a desired shape, and the ink printing 130 of the surface of the window substrate 100 which is individually cut and processed Removing step (S50).

As shown in FIG. 6A, the reference position mark 111 is formed in a predetermined shape at a plurality of points on the upper surface of the glass disc 110. For example, the reference position mark 111 may be displayed in a cross shape or in a specific shape, and may be provided by printing on the surface of the glass original plate 110 or by attaching a separate mark member. In addition, the reference position mark 111 may be formed by directly physically processing the glass disc 110, for example, may be formed by forming a hole in the glass disc 110, or by machining intaglio or the like. have.

By forming one or more reference position marks 111 on the glass original plate 110 as described above, the position where the sensor pattern layer 120 is deposited later can be recognized and used as a reference position for processing (cutting, etc.) of the glass. Will be.

The sensor pattern layer 120 is simultaneously formed over the entire glass disc 110. Therefore, compared to the method of processing the sensor pattern layer individually after cutting the glass original plate 110 into individual window substrates as in the related art, it is possible to significantly reduce the defect rate and save processing time.

After moving the glass original plate 110 on which the reference position mark 111 is formed as described above to a predetermined processing position, that is, the deposition position of the sensor pattern layer 120, the reference position mark 111 using the mark recognition unit 60. After aligning the position to recognize the (), the reference position mark 111 is formed on the glass disc 110 (S20). The mark recognition unit 60 may include a recognition camera for capturing and recognizing the reference position mark 111. The mark recognition unit 60 may be installed in the deposition apparatus 70 for depositing and forming the sensor pattern layer 120, and may be moved together or separately installed.

Next, the ink printing 130 is formed on the sensor pattern layer 120 (S30).

That is, the surface of the loaded glass disc 110 is ink printed by the ink printing apparatus 200. Here, the ink printing apparatus 200 moves uniformly, such as to scan the tempered glass original plate 110, so that ink is uniformly printed on the surface of the sensor pattern layer 120, thereby enabling uniform application throughout.

As described above, the glass original plate 110 printed on one surface is disposed at a cutting position by using a pickup device or a robot not shown.

As the ink-printed glass disc 110 is moved to the cutting position as described above, and the reference position mark 111 is recognized and aligned, as shown in FIGS. 8 and 9, the wet cutting device 300 is used. The ink printed glass disc 110 is cut into a desired shape and processed into a plurality of window substrates 100 (S40). Wherein the wet cutting device 300 is a so-called waterjet (waterjet) device, it is possible to obtain a uniformity of strength and quality of the product by cutting in a single process by a CNC program using high-pressure water and abrasives, in particular As in the embodiment of the present invention, when the sensor pattern layer 120 is already processed on the glass original plate 110, the cutting surface is sequentially performed by performing a process such as shape processing, chamfering processing, hole processing, etc. through straight cutting. The cutting process can be carried out by minimizing the damage while softening.

That is, since the sensor pattern layer 120 formed in advance on the glass original plate 110 is cut in a state covered by the ink printing 130 uniformly printed, the plurality of window substrates 100 which are individually cut and processed are cut surfaces. Since the accurate vertical cutting surface can be obtained without being inclined or skewed, the reliability of the product can be improved. Further, in the related art, damage may occur due to scratches by an abrasive, but since the outside thereof is covered by the ink printing 130, the sensor pattern layer 120 and the glass disc 110 may be damaged during the cutting process. Therefore, it can be produced as a normal product.

Next, the window substrates 100 cut as shown in FIG. 10 are immersed in the aqueous solution 500 to remove the ink printing 130 (S50).

Next, the ink printing is removed, and the separated window substrates 100 are moved to a cleaning and drying unit, not shown, to undergo a cleaning and drying process. The window substrates 100 may be cleaned by, for example, water showering using a water shower device (not shown), followed by air showering using an air shower to complete the process of removing water.

As described above, according to the method for manufacturing a touch screen panel according to an embodiment of the present invention, after depositing the sensor pattern layer 120 on the surface of the glass plate 110 in the state of the original cutting without cutting, The ink pattern 130 is coated by ink printing the sensor pattern layer 120. Then, after the ink-printed glass disc 110 is cut and fully formed, the ink glass 130 can be removed to produce a large amount of window glass, and the defect rate can be significantly reduced. do.

That is, in recent years, since the glass is hard glass such as gorilla glass is released, since the strength of the cut surface is sufficiently maintained even after cutting, the reinforcing treatment is not necessary after cutting, so that the original plate on the glass disc 110 as in the embodiment of the present invention. After depositing the sensor pattern layer 120 in a unit, it is possible to cut and process, and in this case, by adding an ink printing process to protect the sensor pattern layer 120, damage and defect rate in the cutting process can be reduced. do.

Meanwhile, in the above description, the glass disc 110 is cut using a waterjet, that is, a wet cutting device 300 as an example, but this is merely illustrative, and various methods such as a cutting process using a laser may be used. Of course it can.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims.

100..Windows Substrate 110..Glass Disc
120. Sensor pattern layer 130. Ink printing
200. Ink printing device 300. Wet cutting device

Claims (5)

Depositing a sensor pattern layer on a surface of the glass disc;
Ink printing a surface of the sensor pattern layer;
Cutting the ink printed glass disc into a plurality of window substrates of a desired shape;
Removing the ink printing; And
Cleaning and drying the separated tempered glass; touch screen panel manufacturing method comprising a. The method of claim 1, wherein in the separating step,
And removing the ink printing by separating the cut window substrate using an aqueous solution. The method of claim 1 or 2, wherein the cutting step,
Method of manufacturing a touch screen panel, characterized in that to use a wet cutting device for cutting and spraying by mixing the abrasive and water. The method of claim 1 or 2, wherein the cutting step,
Method of manufacturing a touch screen panel, characterized in that for cutting the ink-printed glass disc using a laser. The method according to claim 1 or 2,
Forming a position reference mark on a surface of the glass disc; And
And recognizing and aligning the position reference mark before processing the glass disc.
KR1020110077574A 2011-08-04 2011-08-04 A touch screen panel manufacturing method KR20130015533A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104959734A (en) * 2015-07-06 2015-10-07 武汉华工激光工程有限责任公司 Method for laser cutting of ink screen printing sapphire
CN108154730A (en) * 2018-02-06 2018-06-12 郑州神龙教育装备有限公司 Wisdom teaching display system
CN109228637A (en) * 2018-08-29 2019-01-18 芜湖长信科技股份有限公司 A kind of OGS touch screen base ink printing method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104959734A (en) * 2015-07-06 2015-10-07 武汉华工激光工程有限责任公司 Method for laser cutting of ink screen printing sapphire
CN108154730A (en) * 2018-02-06 2018-06-12 郑州神龙教育装备有限公司 Wisdom teaching display system
CN108154730B (en) * 2018-02-06 2023-09-05 郑州神龙教育装备有限公司 Intelligent teaching display system
CN109228637A (en) * 2018-08-29 2019-01-18 芜湖长信科技股份有限公司 A kind of OGS touch screen base ink printing method

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