KR20150131550A - Thermal Transfer Adhesive Layer Type Touch Screen Panel Glass Manufacturing Method - Google Patents

Thermal Transfer Adhesive Layer Type Touch Screen Panel Glass Manufacturing Method Download PDF

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Publication number
KR20150131550A
KR20150131550A KR1020140058366A KR20140058366A KR20150131550A KR 20150131550 A KR20150131550 A KR 20150131550A KR 1020140058366 A KR1020140058366 A KR 1020140058366A KR 20140058366 A KR20140058366 A KR 20140058366A KR 20150131550 A KR20150131550 A KR 20150131550A
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KR
South Korea
Prior art keywords
adhesive layer
layer
glass
touch screen
screen panel
Prior art date
Application number
KR1020140058366A
Other languages
Korean (ko)
Inventor
김무환
Original Assignee
(주)소프트이콘
김무환
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)소프트이콘, 김무환 filed Critical (주)소프트이콘
Priority to KR1020140058366A priority Critical patent/KR20150131550A/en
Publication of KR20150131550A publication Critical patent/KR20150131550A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • 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)

Abstract

The present invention relates to a touch screen panel equipped with a thermal transfer adhesive layer, and a method for manufacturing the same. The touch screen panel equipped with a thermal transfer adhesive layer of the present invention comprises: a glass (500) which configures the external appearance of a touch screen panel; an adhesive layer (400) which is transparent and has adhesive properties, and whose one side is attached to a surface of the glass (500); and a printing layer (300) attached to one region on the other side of the adhesive layer (400), and on which a letter, a numbers, a design, or a pattern is printed. Since the remaining region, to which the printing layer (300) is not attached, is filled with the adhesive layer (400), there is no thickness difference between the region to which the printing layer (300) is attached, and the remaining region, so there is no step in the boundary region of the printing layer (300).

Description

TECHNICAL FIELD [0001] The present invention relates to a glass for a touch screen panel having a thermal transfer adhesive layer,

The present invention relates to a touch screen panel (TSP) having a bonding layer on one side of a touch screen panel by a thermal transfer method and a method of manufacturing the touch screen panel. More particularly, the present invention relates to a touch screen panel It is possible to achieve a technical effect of preventing the above-

A portable terminal means a communication device capable of exchanging calls and data while moving. In recent years, various and useful functions have been implemented in portable terminals in accordance with the era of digital convergence. For example, a user can use an audio on demand (AOD) service and a video on demand (AOD) service by using a portable terminal, or make a video call in which a calling party looks at the face of the other party by phone, Play. That is, the portable terminal is no longer limited to the area of the voice communication device.

As the functions of the portable terminal have diversified, users have felt the need to control the portable terminal more quickly and conveniently. Accordingly, the manufacturer of the portable terminal has a display unit (hereinafter referred to as a "touch display unit" Quot;).

Meanwhile, the types of touch screen panels used in portable terminals include capacitive overlay, resistive overlay, surface acoustic wave, transmitter and infrared beams, Method. Among the various methods of the touch screen panel, the capacitance type is mainly used in a portable terminal.

1, the electrostatic capacitive type touch screen panel includes a window 1 made of PET, which is a dielectric or an insulator, and a silver paste electrode 2 coated on the bottom edge of the window 1, A PC sheet or glass 5 joined to the window 1 by a double sided tape 4 and a double sided tape 4 on the bottom surface of the glass 5, An ITO coating layer 7 deposited on the dielectric film 6 by a transparent conductive material such as ITO and the like for sensing a touch on the dielectric film 6 and a dielectric film 6 made of a PET material bonded to the ITO coating layer 7 A silver paste electrode 2 coupled to the edge of the dielectric film 6 to transmit an electrical signal thereof to the control unit and an LCD 9 bonded to the bottom surface of the dielectric film 6 with a double-

However, in the case of such a conventional capacitive touch screen panel, since three OCA tapes (OCA tapes: 4, 8) are used during the laminating process, the patch display unit is manufactured by the process of attaching the double- A large amount of defects are caused due to a large amount of foreign substances and bubbles, and the shrinkage of the double-sided tape and the clustering of the adhesive cause the process failure rate to be extremely high, and the thickness of the entire touch screen panel is increased to lower the transmittance, There are fatal disadvantages.

In addition, in the case of directly printing on the glass constituting the touch screen panel, since the glass itself is handled, there is a high probability that handling failure occurs in the printing process as compared with other fabrics. In particular, There is a problem that the glass itself must be discarded due to a printing defect and a printing failure.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems.

First, it is an object of the present invention to provide a touch screen panel having a novel structure capable of preventing the glass itself from being discarded even if printing is performed on a non-glass fabric and printing failure occurs, and a manufacturing method thereof.

Another object of the present invention is to provide a touch screen panel having a novel structure in which an adhesive layer and a print layer are transferred by a thermal transfer method and a manufacturing method thereof.

Third, it is another object of the present invention to minimize the thickness of the entire touch screen panel to increase the light transmittance and the reaction sensitivity.

According to an aspect of the present invention, there is provided a touch screen panel including: a glass substrate; An adhesive layer 400 having a transparent and adhesive property and having one side adhered to the surface of the glass 500; And a printed layer 300 attached to a part of the other side of the adhesive layer 400 and printed with letters, numbers, patterns, or patterns, and the remaining area to which the print layer 300 is not attached, Wherein a thickness of the region where the print layer (300) is attached and the region where the print layer (300) is not formed is filled with the adhesive layer (400) so that there is no step in the boundary region between the print layer (300) A touch screen panel having an adhesive layer is disclosed.

In addition, the present invention relates to a method of manufacturing a touch screen panel having a thermal transfer adhesive layer, comprising the steps of: forming a release coating layer 200 on both sides of a fabric 100 by a roll-to-roll method; A second step of printing the letters, numbers, patterns or patterns on the surface of one side of the release coating layer 200 in the R2R system to form the print layer 300; A third step of coating an adhesive material on one side surface of the release coating layer 200 including the print layer 300 in an R2R method to form an adhesive layer 400 so as to prevent a surface step difference; A fourth step of successively cutting the fabric having the adhesive layer 400 in accordance with a predetermined standard; A glass 500 cut to a predetermined standard is placed on the thermoelectric conversion jig and the fabric 100 cut in the fourth step is placed on the glass surface so that the adhesive layer 400 faces the glass surface. A fifth step of pressing and rolling on the surface of the glass; And a sixth step of removing the fabric 100 and the release coating layer 200 together and completing the touch screen panel transferred with the printing layer 300 and the adhesive layer 400 alone by the glass 500 The present invention also provides a method of manufacturing a touch screen panel having a thermal transfer adhesive layer.

Technical effects of the configuration of the present invention are as follows.

First, it is possible to prevent the glass itself from being discarded even if a printing failure occurs by printing on a fabric other than a glass, so that the loss of raw materials can be minimized.

Second, by separately printing on the fabric and selecting the method of transferring the adhesive layer and the print layer to the glass by the thermal transfer method, the process of directly handling the glass is minimized, the operation convenience is improved, and the product defect rate due to the careless handling of the glass is minimized can do.

Third, it is possible to minimize the thickness of the entire touch screen panel and to increase the light transmittance and the response sensitivity by providing a new structure of the touch screen panel which does not include unnecessary film and a manufacturing method thereof.

1 shows a cross-sectional structure of a conventional touch screen panel.
FIG. 2 shows a process of forming the release coating layer 200 (first step).
3 shows a process of forming the print layer 300 (second step).
4 shows a process of forming the adhesive layer 400 (the third step).
5 shows a process of cutting the fabric 100 (fourth step).
6 shows a thermal transfer process (fifth step).
FIG. 7 illustrates a process of removing the fabric 100 after the thermal transfer process is completed (operation 6) and a structure of the touch screen panel in which the operation is completed.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

The glass 500 is generally made of tempered glass and forms the appearance of the touch screen panel.

The adhesive layer 400 is transparent and adhesive and one side of the adhesive layer 400 is attached to the surface of the glass 500. The adhesive layer 400 may be formed of an OCR (Optical Clear Resin) or an OCA (Optical Clear Adhesive ) Is sprayed onto the surface of the fabric 100 having the print layer 300 as shown in FIG. 4, followed by drying. The adhesive layer 400 is transferred to the glass 500 together with the print layer 300 by the thermal transfer method shown in FIG. 6, and the remaining area to which the print layer 300 is not attached is filled with the adhesive layer 400, The thickness of the region where the layer 300 is attached is not equal to the thickness of the region where the layer 300 is not attached, so that there is no step on the boundary between the print layer 300 and the adhesive layer 400.

The print layer 300 is attached to a portion of the other side of the adhesive layer 400 and printed with letters, numbers, patterns, or patterns. 3, the print layer 300 is formed on the surface of one side of the release coating layer 200 of the raw material 100 on which the release coating layer 200 is formed by the R2R method, .

7, there is no separate film, and only the adhesive layer 400 and the print layer 300 are transferred to the glass 500. As a result, The overall thickness can be reduced, the light transmittance can be improved, and the reaction sensitivity of the reaction touch screen panel can be increased as the thickness is reduced.

Hereinafter, a method of manufacturing a touch screen panel having a thermal transfer adhesive layer will be described.

(1) Step 1

As shown in FIG. 2, a release coating material is sprayed on both side surfaces of the raw fabric 100 by a roll-to-roll method and dried to form a release coating layer 200.

The fabric 100 used herein may be a fabric made of a general PET material.

The release coating layer 200 prevents the print layer 300 or the adhesive layer 400 from adhering to the rear surface of the fabric 100 during the manufacturing process and prevents the fabric 100 from being adhered to the print layer 300 and the adhesive layer 400), as shown in FIG.

(2) Step 2

A printing process is performed by printing characters, numbers, patterns or patterns on the surface of one side of the release coating layer 200 by the R2R method.

As shown in FIG. 3, the printing process includes a process of perforating a pinhole serving as a reference for setting the position of the fabric 100 to be printed on both ends of the fabric 100, In the process of continuously performing the process, the pin provided on the presser bottom suction plate is inserted into the pint hole to set the precise position of the fabric 100. The printing process is accompanied by a drying process.

When this process is completed, the print layer 300 is formed on a part of the surface of one side of the release coating layer 200 as shown in the sectional structure shown in FIG.

(3) Step 3

The adhesive layer 400 is formed on one surface of the release coating layer 200 including the print layer 300 by coating the adhesive in the R2R method so that no surface step is generated.

The adhesive uses a material such as OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive) having high light transmittance and is accompanied by a drying process. The adhesive layer 400 is subjected to a drying process. When the adhesive is heat- And transferred onto the surface of the glass 500.

4, the print layer 300 and the adhesive layer 400 are formed on one side of the release coating layer 200. The area where the print layer 300 is not formed is the adhesive layer 400 and the adhesive layer 400 is also formed on the outer surface of the region where the print layer 300 is formed.

(4) Step 4

As shown in FIG. 5, the fabric 100 having the adhesive layer 400 formed thereon is continuously cut according to a predetermined standard. The fabric 100 is cut according to the standard of the glass to form the touch screen panel.

(5) Step 5

A glass 500 cut to a predetermined standard is placed on the thermoelectric conversion jig and the fabric 100 cut in the fourth step is placed on the glass surface so that the adhesive layer 400 faces the glass surface, ) Is pressed and rolled on the glass surface.

As shown in FIG. 6, this process is performed using a thermal transfer roller that generates heat at 200 to 250 ° C. When heat is applied, the adhesive layer 400 is adhered to the surface of the glass so as to be transferred to the glass surface.

(6) Step 6

When the fabric 100 and the release coating layer 200 are removed together to use the touch screen panel, only the print layer 300 and the adhesive layer 400 are transferred to the glass 500 as shown in FIG.

The process of forming the release coating layer 200, the process of forming the print layer 300, and the process of forming the adhesive layer 400 are performed by the R2R (Roll to Roll) method, so that the workability can be improved remarkably, It is possible to improve the print quality by eliminating the use of the glass 500 which is not used and to prevent the situation where the glass 500 itself is discarded in accordance with printing defects.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Addition or deletion of a technique, and limitation of a numerical value are included in the protection scope of the present invention.

100: Fabric
200: release coating layer
300: printing layer
400: adhesive layer
500: glass

Claims (6)

A glass 500 forming an appearance of the touch screen panel;
An adhesive layer 400 having a transparent and adhesive property and having one side adhered to the surface of the glass 500;
A printed layer 300 attached to a part of the other side of the adhesive layer 400 and printed with letters, numbers, patterns, or patterns;
And,
The remaining area to which the print layer 300 is not attached is filled with the adhesive layer 400 so that the thickness of the print layer 300 and the area of the adhesive layer 400 Wherein the step of forming the thermally transferable adhesive layer has no step in the boundary region of the touch panel. The method of claim 1,
Wherein the adhesive layer (400) and the print layer (300) are transferred to the surface of the glass (500) by a thermal transfer method formed on a separate fabric (100). A method of manufacturing a touch screen panel having a thermal transfer adhesive layer,
A first step of forming a release coating layer 200 on both sides of the fabric 100 by a roll-to-roll (R2R) method;
A second step of printing the letters, numbers, patterns or patterns on the surface of one side of the release coating layer 200 in the R2R system to form the print layer 300;
A third step of coating an adhesive material on one side surface of the release coating layer 200 including the print layer 300 in an R2R manner to form an adhesive layer 400 so that a surface step difference is not generated;
A fourth step of successively cutting the fabric 100 on which the adhesive layer 400 is formed in accordance with a predetermined standard; And
The glass 500 cut to a predetermined size is placed on the thermoelectric conversion jig, the fabric 100 cut in the fourth step is placed on the glass surface so that the adhesive layer 400 faces the glass surface, 100) on the surface of the glass;
The method of manufacturing a touch screen panel according to claim 1, 4. The method of claim 3,
The second step comprises:
A process of puncturing a pinhole serving as a reference for setting the position of the raw fabric 100 to be printed on both side ends of the raw fabric 100 may be included in the process of continuous printing of the multi- Wherein the pin is inserted into the pin hole to set the precise position of the fabric (100). 4. The method of claim 3,
In the fifth step,
Wherein the thermal transfer adhesive layer is formed using a thermal transfer roller that generates heat at 200 to 250 ° C. 4. The method of claim 3,
A sixth step of removing the fabric 100 and the release coating layer 200 together after the fifth step is completed to complete the touch screen panel transferred with the printing layer 300 and the adhesive layer 400 alone with the glass 500;
The method of manufacturing a touch screen panel according to claim 1,
KR1020140058366A 2014-05-15 2014-05-15 Thermal Transfer Adhesive Layer Type Touch Screen Panel Glass Manufacturing Method KR20150131550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140058366A KR20150131550A (en) 2014-05-15 2014-05-15 Thermal Transfer Adhesive Layer Type Touch Screen Panel Glass Manufacturing Method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140058366A KR20150131550A (en) 2014-05-15 2014-05-15 Thermal Transfer Adhesive Layer Type Touch Screen Panel Glass Manufacturing Method

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101699305B1 (en) 2016-01-11 2017-01-24 주식회사 도우인시스 Tempered Glass for Mobile Devices
KR20210070722A (en) 2019-12-05 2021-06-15 씨엠원글로벌 주식회사 Ultra thin glass that protecting the flexible display surfaces
KR20210097589A (en) 2020-01-30 2021-08-09 씨엠원글로벌 주식회사 Ultra-thin glass protects the surface of the flexible display with digitizer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101699305B1 (en) 2016-01-11 2017-01-24 주식회사 도우인시스 Tempered Glass for Mobile Devices
KR20210070722A (en) 2019-12-05 2021-06-15 씨엠원글로벌 주식회사 Ultra thin glass that protecting the flexible display surfaces
KR20210097589A (en) 2020-01-30 2021-08-09 씨엠원글로벌 주식회사 Ultra-thin glass protects the surface of the flexible display with digitizer

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