KR20160047418A - Producting Methode of Deco-Film for Touch Window - Google Patents

Producting Methode of Deco-Film for Touch Window Download PDF

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Publication number
KR20160047418A
KR20160047418A KR1020150190748A KR20150190748A KR20160047418A KR 20160047418 A KR20160047418 A KR 20160047418A KR 1020150190748 A KR1020150190748 A KR 1020150190748A KR 20150190748 A KR20150190748 A KR 20150190748A KR 20160047418 A KR20160047418 A KR 20160047418A
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KR
South Korea
Prior art keywords
layer
film
deposition
color tint
color
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KR1020150190748A
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Korean (ko)
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KR101668627B1 (en
Inventor
김규남
장세민
Original Assignee
(주)세경하이테크
한국알프스 주식회사
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Priority to KR1020150190748A priority Critical patent/KR101668627B1/en
Publication of KR20160047418A publication Critical patent/KR20160047418A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
    • B44C3/02—Superimposing layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2451/00—Decorative or ornamental articles

Abstract

The present invention relates to a manufacturing method of a deco-film (100) for touch window and, more specifically, to a manufacturing method of a deco-film (100) for touch window, which simplifies a manufacturing process, and is capable of significantly reducing time for manufacturing. The deco-film (100) for touch window comprises: a color tint layer (120) for expressing at least one of a color or a shape; a PET base film for optical uses (110); a pattern layer (130); a deposition layer (140) for controlling a penetration rate or a reflection rate; and a printing layer (150). The manufacturing method comprises: step (a) for forming the color tint layer (120); step (b) for forming the pattern layer (130); step (c) for depositing and forming the deposition layer (140); step (d) for forming the printing layer (150); and step (e) for coupling a coupling body of the PET base film for optical uses (110), the pattern layer (130), the deposition layer (140), and the printing layer (150).

Description

Technical Field [0001] The present invention relates to a method for manufacturing a decoupled film for a touch window,

The present invention relates to a method of manufacturing a decoupling film for a touch window (100), which comprises a color tint layer (120) which is adhesively bonded to a lower side of a tempered glass layer (1) A PET base film 110 adhered to the lower surface of the color tint layer 120 and a pattern 110 formed on the lower surface of the PET base film 110 for optical purposes, A deposition layer 140 formed on the lower surface of the pattern layer 130 and performing a function of controlling a transmittance or a reflectance of the deposition layer 140; A layer 150; The method of manufacturing a decoupling film for a touch window according to claim 1,

(A) forming the color tint layer 120, (b) forming the pattern layer 130 on the lower surface of the optical ground film 110, (C) depositing a deposition layer 140 which functions to control transmittance or reflectance on the lower part of the pattern layer 130 and forming a printing layer 150 on the lower surface of the deposition layer 140 The patterned layer 130, the deposition layer 140, and the second electrode layer 140 are formed on the lower surface of the coloring layer 120, (E) coupling the assembly of the print layer (150); The present invention relates to a method of manufacturing a decoupling film for a touch window (100).

2. Description of the Related Art Generally, with the development of wireless communication technology, mobile phones have become smaller and complicated, and accordingly, not only electrical characteristics but also mechanical characteristics are required to have high reliability. In particular, the failure of a mobile phone caused by a mistake, such as dropping or stepping in use, is regarded as a measure for evaluating the performance of a mobile phone. In view of such a society, LCD module manufacturers, A method of increasing the strength of the mold frame or a method of providing a window panel on the front surface of the LCD panel is proposed.

2. Description of the Related Art Recently, PDAs, mobile communication terminals or navigation systems for automobiles have formed a large market, and these electronic devices mainly include a touch screen or a touch panel switch on an input operation unit.

The input operation unit of the touch screen is usually made of a transparent conductive plastic film. For example, the touch operation screen may include a tempered glass for protecting a liquid crystal display module in which an image is formed, a decoration film printed with a company logo or a button, an indium tin oxide (ITO) Or the like is adhered through OCA (Optical Clear Adhesive) or the like.

FIG. 1 is an exemplary view for explaining a cross-sectional structure of a protective film of a conventional LCD module for a window, which includes a screen printing layer 10, a deposition layer 20 laminated on the upper end of the screen printing layer 10, A UV pattern layer 30 formed over the entire upper end of the layered layer 20; a PET base film 40 laminated on top of the UV pattern layer 30; And a tempered glass 60 adhered to the upper end of the base 40 through the adhesive layer 50. Such a constitution of the conventional invention is disclosed in "Deco film for touch window" and a manufacturing method thereof (Korean Patent Registration No. 10-1277727) of the following Patent Document 1.

The UV pattern layer 30 is designed to have an arbitrary pattern under the ground film 40 for projecting, diffusing and reflecting light. That is, the design is implemented through the UV pattern layer as described above, and OCA and PET film are integrally applied, and its thickness is about 0.125t.

In the case of this conventional invention, the type and thickness of the material deposited on the deposition layer 20 are adjusted by adjusting the color of the entire film (for example, black sapphire, gold platinum, silver titanium, white pearl, etc.) ) And the reflection of light of a specific wavelength band by the refractive index and the thickness of the deposited material are used as the main technical features.

However, as is well known, it is not easy to realize color uniformity because the deposition process as described above requires extremely high processing difficulty, and it is required to adjust the thickness of the deposition layer extremely accurately in order to realize a specific color. The process becomes more difficult. In order to realize a specific color, a plurality of deposition materials of various materials sequentially form at least two to four layers and must be sequentially deposited. Therefore, the thickness of the deposition layer is thickened and the deposition process belonging to the most complicated process is performed. since it must be repeatedly performed in each layer, the process becomes complicated. The problem with this repetitive deposition process becomes even greater when using E-Beam in vacuum to perform the deposition process in particular.

In addition, due to the characteristics of achieving the implementation of colors through deposition, it is only possible to realize a uniform color as a whole, and it is impossible to express a specific pattern having a color difference.

Korean Patent No. 10-1277727

The present invention solves the above-described problems of the prior art and implements a color tint layer directly on an optical ground film (PET base film) through an ink thermal transfer method or the like, and the vapor deposition layer has a function of controlling reflectance and transmittance It is an object of the present invention to provide a method for manufacturing a decoupling film for a touch window which is capable of simplifying a manufacturing process, lowering the process cost and process difficulty, and greatly shortening a manufacturing time.

Another object of the present invention is to enable various colors and patterns through the color tint layer.

In order to achieve the above object, the present invention provides a method of manufacturing a decoupled film for a touch window (100), the method comprising the steps of: A color tint layer 120 that is adherably bonded and that represents at least one of a color or a shape; an optical ground film 110 attached to a lower surface of the color tint layer 120; A pattern layer 130 formed on the lower surface of the PET base film 110 and a pattern layer 130 formed under the pattern layer 130 to control transmittance or reflectance A printing layer (150) formed on a lower surface of the deposition layer (140); The method of manufacturing a decoupling film for a touch window according to claim 1,

(A) forming the color tint layer 120, (b) forming the pattern layer 130 on the lower surface of the optical ground film 110, (C) depositing a deposition layer 140 which functions to control transmittance or reflectance on the lower part of the pattern layer 130 and forming a printing layer 150 on the lower surface of the deposition layer 140 The patterned layer 130, the deposition layer 140, and the second electrode layer 140 are formed on the lower surface of the coloring layer 120, (E) coupling the assembly of the print layer (150); And a control unit.

In the step (a), the color tint layer 120 may be formed on at least one of the upper surface or the lower surface of the ground layer 122 composed of a PET film or a printable hard coating layer And forming the color tints 121 and 121 '.

In the step (a), the color tints 121 and 121 'are formed by an ink thermal transfer method.

Also, in the step (c), the deposition layer 140 is formed to have a thickness of 400 Å or less, and the reflectance is formed to be 30% or more.

A first adhesive layer formed of OCA (Optical Clear Adhesive) or an adhesive resin is formed on the upper surface of the color tint layer 120 and the upper surface of the optical ground film (PET base film) (F) forming a first adhesive layer 160 and a second adhesive layer 160 '; And further comprising:

According to the present invention, a color tint layer is directly formed on an optical ground film (PET base film) or the like through an ink thermal transfer method, and the vapor deposition layer implements only a function of controlling the reflectance and transmittance, There is an advantage that it is possible to simplify the manufacturing process, reduce the process cost and process difficulty, and greatly shorten the production time.

In addition, there is an advantage that various colors and patterns can be made through the color tint layer.

1 is an exemplary view for explaining a sectional structure of a protective film of an LCD module for a window according to an embodiment of the present invention;
2 is a schematic cross-sectional view showing a configuration of a decoupled film for a touch window manufactured by a method for manufacturing a decoupled film for a touch window according to an embodiment of the present invention;
3 is a schematic cross-sectional view illustrating a configuration of a decoupled film for a touch window manufactured by a method for manufacturing a decoupled film for a touch window according to another embodiment of the present invention.

Hereinafter, a method of manufacturing a decoupled film for a touch window according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. First, it should be noted that, in the drawings, the same components or parts are denoted by the same reference numerals whenever possible. In describing the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as to avoid obscuring the subject matter of the present invention.

First, a decoupled film for a touch window 100 manufactured by a method for manufacturing a decoupled film for a touch window according to an embodiment of the present invention will be described.

2 or 3, the decoupling film 100 for a touch window is attached to the lower side of the tempered glass layer 1 in a manner such that the color tint layer (not shown) A PET base film 110 adhered to the lower surface of the color tint layer 120 and a PET base film 110 formed on the lower surface of the PET base film 110 A pattern layer 130 formed on the lower surface of the pattern layer 130 and a deposition layer 140 formed on the lower surface of the pattern layer 130 to control transmittance or reflectance, (150)

The color tint layer 120 is adhesively bonded to the lower side of the toughened glass layer 1 as shown in Fig. 2 and represents at least one of color or shape. On the other hand, the color tint layer 120 constitutes a hue layer usually having semi-transparency, as can be known by its name. In this case, the color tint layer 120 can be formed by various embodiments, and in one embodiment, it is preferable that the color tint layer 120 is formed by an ink thermal transfer method. In the case of the ink thermal transfer method, not only can various colors and shapes be realized, but also the permeability can be controlled by the combination of the thickness / color / layer of the transferred ink layer. In addition, in the case of the ink thermal transfer method, since the thickness of one transfer layer is only about 0.6 to 2.0 mu m and the thickness thereof can be reduced to 1/3 to 1/5, compared with the case of a conventional silk screen, It is possible to greatly improve the operational sensitivity of the touch window in which operation and the like are required.

In this case, the color tint layer 120 may include a ground layer 122 composed of either a PET film or a printable hard coat layer, as shown in FIG. 2 or 3, And color tints 121 and 121 'formed on either the upper side or the lower side of the color tint 121 and 121'.

Meanwhile, the color tint layer 120 does not require the deposition layer 140 to have a multi-layer structure so as to have a color similar to that of the conventional deposition layer. Therefore, And the whole process becomes extremely simple.

Next, the pattern layer 130 will be described. The pattern layer 130 is formed on the lower surface of an optical ground film 110 attached to the lower surface of the color tint layer 120 as shown in FIG. 2 or 3, ≪ / RTI > and the like, as disclosed widely throughout the prior art.

Next, the deposition layer 140 will be described. As shown in FIG. 2 or FIG. 3, the deposition layer 140 is formed on the lower surface of the pattern layer 130 through a deposition process, and controls the transmittance or the reflectance. In this case, the deposition layer 140 is formed by repeating a plurality of deposition processes in a multi-layer manner for the function of expressing the color of the existing deposition layers, It is preferable to have a thickness of 400 Å or less and reflectance of 30% or more. Since the evaporation layer 140 has a function of controlling transmittance or reflectance, it is sufficient that the deposition process belonging to the most complicated process is carried out to a much less extent. Therefore, the entire process is greatly simplified, Is excellent in reproducibility.

Meanwhile, the deposition layer 140 may include any one of various metals such as indium, chromium, and tin.

On the other hand, in consideration of the fact that the decoupling film 100 for a touch window of the present invention is attached to the tempered glass 1 constituting the touch widow, as shown in FIG. 2, And a first adhesive layer 160 formed on the first adhesive layer 160. In order to improve the process efficiency by separately performing the process of forming the color tint layer 120 and the deposition process, a second adhesive layer (not shown) formed on the upper surface of the optical ground film (PET base film) (160 ').

In this case, the first adhesive layer 160 and the second adhesive layer 160 'are preferably formed of OCA (Optical Clear Adhesive) or an adhesive resin.

3, a view area 200 is provided to secure a view area 200, as shown in FIG. 3, It is preferable that the pattern layer 130, the deposition layer 140, and the print layer 150 are not formed. In this case, after the pattern layer 130 is entirely processed, only the pattern layer 130 of the view area 200 is selectively removed, or the pattern area 130 of the view area 200 So that only the outer circumferential portion is formed. Also, considering the characteristics of the deposition process, the deposition layer 140 is etched to secure the view area 200 after the entire view area 200 is formed by etching desirable.

Next, a method for manufacturing a decoupled film for a touch window according to an embodiment of the present invention will be described.

The method of manufacturing a decoupled film for a touch window according to an embodiment of the present invention includes the steps of: (a) forming the color tint layer 120; (B) forming a pattern layer 130 on the surface of the pattern layer 130, and (c) forming a deposition layer 140 on the pattern layer 130 by depositing a deposition layer 140, which functions to control transmittance or reflectivity, (D) forming a printing layer (150) on a lower surface of the deposition layer (140); forming an optical ground film (PET base film) on the lower surface of the coloring layer (120) (E) bonding a combination of the pattern layer (110), the pattern layer (130), the deposition layer (140), and the print layer (150); And a control unit.

In this case, in the step (c), the deposition layer 140 is formed to have a thickness of 400 Å or less as described above, and the reflectance is formed to be 30% or more. In the step (c), the optical base film 110 and the pattern layer 130 may be provided in a sheet form or in a roll form, Lt; / RTI > In this case, if the optical base film 110 and the pattern layer 130 are provided in the form of a sheet, the step (c) may be a deposition process using an E-beam Is preferably applied. In the case where the optical base film 110 and the pattern layer 130 are provided in a roll form, the step (c) may be performed by a deposition process using sputtering Is preferably applied.

Meanwhile, the deposition layer 140 deposited in step (c) may include any one of various metals such as indium, chromium, and tin.

Meanwhile, in the step (a), the color tint layer 120 may be formed on either the upper side or the lower side of the ground layer 122 composed of a PET film or a printable hard coating layer, And forming the color tints 121 and 121 'on one side. The color tints 121 and 121' are preferably formed by an ink thermal transfer method.

A first adhesive layer formed of OCA (Optical Clear Adhesive) or an adhesive resin is formed on the upper surface of the color tint layer 120 and the upper surface of the optical ground film (PET base film) (F) further forming a first adhesive layer 160 and a second adhesive layer 160 '.

3, a view area 200 is provided to secure a view area 200, as shown in FIG. 3, It is preferable that the pattern layer 130, the deposition layer 140, and the print layer 150 are not formed. In this case, after the pattern layer 130 is entirely processed, only the pattern layer 130 of the view area 200 is selectively removed, or the pattern area 130 of the view area 200 So that only the outer circumferential portion is formed. Also, considering the characteristics of the deposition process, the deposition layer 140 is etched to secure the view area 200 after the entire view area 200 is formed by etching desirable.

In the foregoing, optimal embodiments have been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1: tempered glass
100: Deco film for touch window
110: Optical base film (PET base film)
120: Color tint layer
121, 121 ': Color tint
122:
130: pattern layer
140:
150: Printed layer
160,160 ': Adhesive layer
200: view area

Claims (5)

A color tint layer (120) adhesively bonded to the lower side of the tempered glass layer (1) and representing at least one of a hue or a shape;
An optical ground film (PET base film) 110 adhered to a lower surface of the color tint layer 120;
A pattern layer 130 formed on the lower surface of the optical ground film 110;
A deposition layer 140 formed under the pattern layer 130 and performing a function of controlling transmittance or reflectance;
A printing layer 150 formed on the lower surface of the deposition layer 140; The method of manufacturing a decoupling film for a touch window according to claim 1,

(A) forming the color tint layer 120;
(B) forming the pattern layer 130 on the lower surface of the optical ground film 110;
(C) depositing a deposition layer (140) functioning to control transmittance or reflectance on the lower part of the pattern layer (130);
(D) forming a printing layer (150) on a lower surface of the deposition layer (140);
A combination of the PET base film 110, the pattern layer 130, the deposition layer 140, and the print layer 150 is bonded to the lower side of the coloring layer 120 (e); (100) according to any one of claims 1 to 3,
The method according to claim 1,
In the step (a), the color tint layer (120)
(121, 121 ') on either the upper surface or the lower surface of the ground layer (122) composed of a PET film or a printable hard coating layer, characterized in that the color tint (100) for a touch window. The method according to claim 2,
In the step (a), the color tints 121 and 121 'are formed by an ink thermal transfer method. The method according to claim 1,
In the step (c)
Wherein the deposition layer (140) is formed to have a thickness of 400 Å or less, and the reflectance is formed to be 30% or more. The method according to any one of claims 1 to 4,
A first adhesive layer 160 formed of OCA (Optical Clear Adhesive) or an adhesive resin is formed on the upper side of the color tint layer 120 and the upper side of the optical ground film 110 ) And a second adhesive layer (160 '); The method of claim 1, further comprising:
KR1020150190748A 2015-12-31 2015-12-31 Producting Methode of Deco-Film for Touch Window KR101668627B1 (en)

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KR20180049863A (en) * 2016-11-04 2018-05-14 이찬희 Decoration window glass for touch panel and preparation method thereof
KR20190096585A (en) 2018-02-09 2019-08-20 한승택 Adhesive for deco-film
WO2020027628A1 (en) * 2018-08-02 2020-02-06 Samsung Electronics Co., Ltd. Cover glass and electronic device comprising the same
KR20200072230A (en) * 2018-12-12 2020-06-22 (주)세경하이테크 Cellular phone decoration film and manufacturing method thereof
WO2021010513A1 (en) * 2019-07-16 2021-01-21 엘지전자 주식회사 Window glass and mobile terminal comprising same
KR20210115299A (en) * 2020-03-12 2021-09-27 한국알프스 주식회사 Deco-film with metalic circuit pattern and producting methode thereof
KR20230021277A (en) * 2021-08-05 2023-02-14 (주)세경하이테크 Decoration film comprising layer having function of color and reflection and its manufacturing method

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KR102230590B1 (en) * 2019-06-14 2021-03-22 (주)세경하이테크 Deco-film with curved surface for touch window and manufacturing method thereof

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KR20180049863A (en) * 2016-11-04 2018-05-14 이찬희 Decoration window glass for touch panel and preparation method thereof
KR20190096585A (en) 2018-02-09 2019-08-20 한승택 Adhesive for deco-film
WO2020027628A1 (en) * 2018-08-02 2020-02-06 Samsung Electronics Co., Ltd. Cover glass and electronic device comprising the same
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WO2021010513A1 (en) * 2019-07-16 2021-01-21 엘지전자 주식회사 Window glass and mobile terminal comprising same
KR20210115299A (en) * 2020-03-12 2021-09-27 한국알프스 주식회사 Deco-film with metalic circuit pattern and producting methode thereof
KR20230021277A (en) * 2021-08-05 2023-02-14 (주)세경하이테크 Decoration film comprising layer having function of color and reflection and its manufacturing method

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