KR101484452B1

KR101484452B1 - Touch screen protect galss and Method for manufacturing the same

Info

Publication number: KR101484452B1
Application number: KR20140110967A
Authority: KR
Inventors: 김영수; 최슬우; 유병화
Original assignee: 주식회사 맥스젠테크놀로지; 최슬우
Priority date: 2014-08-25
Filing date: 2014-08-25
Publication date: 2015-02-13

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tempered glass panel for protecting a touch screen such as a mobile phone and a notebook computer, and a method of manufacturing the same. More particularly, the present invention relates to a tempered glass panel for protecting a touch screen by effectively absorbing an external impact, the present invention relates to a tempered glass panel for protecting a surface of a touch screen which can be closely attached to a curved outer surface of a touch screen without causing moire phenomenon.
The tempered glass panel for touch screen surface protection according to the present invention comprises a tempered glass 101 formed in the form of a touch screen 109; A protruding adhesive layer 104 formed at a predetermined height along the lower edge of the tempered glass 101 and having adhesiveness; An adhesive film base material 107 adhered to the protruding adhesive layer 104 formed along the rim of the tempered glass 101; An air pocket 106 formed in a space between the tempered glass 101 and the adhesive film base 107; And a release film 109 adhered to the lower surface of the adhesive film base 107 through the adhesive layer 108.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a tempered glass panel for protecting a touch screen,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tempered glass panel for protecting a touch screen such as a mobile phone and a notebook computer, and a method of manufacturing the same. More particularly, The present invention relates to a tempered glass panel for protecting a surface of a touch screen which can be closely attached to a curved outer surface of a touch screen without causing a moire phenomenon.

Generally, capacitive touch screens are used in mobile devices such as mobile phones and notebooks.

Such a touch screen provides ease of use to a user by allowing a user to input a desired character or symbol by touching the screen without a mechanical keypad for character input and intuitively selecting various menus. However, There is a risk that the touch screen is easily damaged due to use, scratching, pressing, or scratching due to contact with other objects.

In order to prevent this, a protective film made of synthetic resin film is used. PMMA (polymethylethacrylate) protective film is lightweight, has excellent impact resistance, processability, adhesion with touch screen of mobile devices, high transmittance , And high surface hardness characteristics.

However, since the protective film made of PMMA has difficulty in surface printing, a protective film molded from a PET material is used. Protective films of PET materials are capable of printing a beautiful shape on the surface, but they are vulnerable to scratches because of their low surface hardness.

In recent years, tempered glass panels are widely used because they are easily printed on various surfaces and have high surface hardness and hardly scratch the surface.

Tempered glass is a glass with improved mechanical strength by special heat treatment by high heat, and its strength is 3 to 5 times higher than ordinary glass.

1, a printed layer 12 is formed on the lower surface of the tempered glass 10, and a portion where the printed layer 12 is not formed is covered with a printing layer 14 12 and the base material 20 of PET material is attached to the lower portion thereof.

Such a conventional tempered glass panel is not perfect in flatness of the glass, and when the glass panel adheres to the surface of the touch screen, lifting phenomenon occurs and there is no ductility. Therefore, the bubbles generated when the tempered glass panel is attached to the touch screen surface There is a problem that a moire phenomenon of a rainbow shape occurs due to interference between layers between the touch screen surface and the tempered glass panel.

In addition, since the tempered glass panel is in close contact with the surface of the touch screen, the external impact is transmitted to the surface of the touch screen as it is, thereby damaging the touch screen.

In recent years, a cell phone manufactured in recent years often has a curved surface of a touch screen frame for a good appearance. When a tempered glass panel, which is a flat type of conventional technology, is attached to such a touch screen, .

(Document 1) Korean Registered Patent No. 10-1327531, "Tempered Glass Cover for Electrostatic Liquid Crystal Display Protection" (Document 2) Korean Registered Patent No. 10-1324929, "Tempered glass protection glass and its production method"

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

First, even if the flatness of the tempered glass panel is not perfect,

Second, it is easy to remove bubbles generated between the tempered glass panel and the touch screen after attaching to the touch screen,

Third, when a tempered glass panel is attached to a touch screen, it is attached at a high speed,

Fourth, it is possible to prevent the occurrence of moire phenomenon caused by the interference between the two layers of the touch screen and the tempered glass panel,

Fifth, even when the edge of the touch screen is processed into a curved surface, the tempered glass panel can be adhered to the curved portion of the tempered glass panel,

Sixthly, it is an object of the present invention to provide a tempered glass panel for surface protection of a touch screen which can prevent a touch screen from being damaged by an impact by absorbing external impact, and a method of manufacturing the same.

In order to achieve the above object, a tempered glass panel for protecting a touch screen according to the present invention comprises a tempered glass 101 formed in the form of a touch screen 109; A protruding adhesive layer 104 formed at a predetermined height along the lower edge of the tempered glass 101 and having adhesiveness; An adhesive film base material 107 adhered to the protruding adhesive layer 104 formed along the rim of the tempered glass 101; An air pocket 106 formed in a space between the tempered glass 101 and the adhesive film base 107; And a release film 109 adhered to the lower surface of the adhesive film base 107 through the adhesive layer 108.

At this time, the protrusion-type adhesive layer 104 is formed with a protrusion-type adhesive layer 104 in an open form so that a channel groove 110 is formed to communicate the air pockets 106 with the outside.

The scattering prevention film 103 is attached to the lower surface of the tempered glass 101 through the adhesive layer 102 between the lower surface of the tempered glass 101 and the protruding adhesive layer 104.

Further, the adhesive film base 107 is characterized in that the printing layer 105 is formed.

Further, a printed layer 105 is formed on the lower surface of the tempered glass 101 or the lower surface of the light-scattering prevention film 103.

The height of the projection-type adhesive layer 104 is 30 to 300 mu m.

The method for manufacturing a tempered glass panel for protecting a touch screen according to the present invention is characterized in that the tempered glass outer panel and the hole cutting (G / C), the upper surface edge curved surface processing (G / R) (S / F) on the upper surface of the shatterproof film, a release film laminate (S / L) on the upper surface of the film, and a protrusion type adhesive layer (S / M) (R / F) for the adhesive film on the lower side of the adhesive film and a release film (R / L) process for the lower side of the film. Then, the adhesive film is prepared by laminating the anti-scattering film and the adhesive film Cutting the outer edge and hole in the form of a touch screen, and joining with prepared tempered glass.

Another method of manufacturing a tempered glass panel for protecting a touch screen according to the present invention is a method for manufacturing a tempered glass panel for protecting a touch screen, which comprises a tempering glass outer and hole cutting (G / C), a curving process at a border portion (G / R) (S / F) on the upper surface of the shatterproof film and a S / L process (S / L) on the upper surface to prepare a shatterproof film and apply an adhesive layer on the lower surface of the adhesive film (R / L) on the lower surface, a protruding adhesive layer (R / M) on the upper surface of the upper surface of the touch screen to prepare a pressure sensitive adhesive film, Cutting the outer edge and hole in the form, and joining with prepared tempered glass.

According to another aspect of the present invention, there is provided a method of manufacturing a tempered glass panel for protecting a touch screen, comprising preparing a tempered glass through a tempered glass outer and hole cutting (G / C) (S / F) on the upper surface of the film, release film laminate (S / L) on the upper surface, printing (S / P) on the lower edge and scattering prevention through the protrusion type adhesive layer formation (S / (R / F) on the lower surface of the adhesive film and a release film (R / L) process on the lower surface of the adhesive film to prepare an adhesive film. Cutting the outer edge and hole in the form of a touch screen, and joining with prepared tempered glass.

According to another aspect of the present invention, there is provided a method of manufacturing a tempered glass panel for protecting a touch screen, comprising preparing a tempered glass through a tempered glass outer and hole cutting (G / C) A scattering prevention film was prepared by applying the adhesive layer (S / F) on the upper surface of the film, releasing film laminate (S / L) on the upper surface and printing (S / P) (R / F), a release film laminate (R / L) on the lower surface, and a projection type adhesive layer formation (R / M) process on the upper surface edge. Cutting the outer edge and hole in the form of a touch screen, and joining with prepared tempered glass.

The tempered glass panel for protecting a touch screen surface according to the present invention having the above-described structure can be manufactured in a simple manner, even when the glass flatness of the tempered glass panel is not perfect, It is possible to easily remove the air bubbles generated between the panel and the touch screen, to quickly attach the touch screen to the touch screen, to prevent the moire phenomenon, and even when the edge of the touch screen is curved, The reinforced glass panel can be adhered to the curved surface portion of the curved surface portion of the touch panel.

1 is a cross-sectional view of a conventional tempered glass panel for protecting a touch screen.
2 is a perspective view showing the use state of the present invention.
3 is a perspective view illustrating a tempered glass panel according to the present invention.
4 is a cross-sectional view illustrating a section of a tempered glass panel according to an embodiment of the present invention.
5 is a cross-sectional view of a tempered glass panel according to another embodiment of the present invention.
6 is a partially enlarged cross-sectional view showing a state in which the tempered glass panel of the present invention is closely attached to a curved surface portion of a touch screen.
7 is a perspective view showing a channel groove formed in an adhesive layer of a tempered glass panel.
8 to 11 are views illustrating a manufacturing process of a tempered glass panel manufacturing process for protecting a touch screen according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a tempered glass panel for protecting a touch screen according to the present invention and a method of manufacturing the same will be described in detail with reference to the accompanying drawings.

FIG. 3 is a perspective view showing a tempered glass panel according to the present invention, FIG. 4 is a sectional view showing a section of a tempered glass panel according to an embodiment of the present invention, FIG. FIG. 5 is a cross-sectional view of a tempered glass panel according to another embodiment of the present invention, FIG. 6 is a partially enlarged cross-sectional view showing a state in which the tempered glass panel of the present invention is closely attached to a curved surface portion of a touch screen FIG. 7 is a perspective view showing a channel groove formed in an adhesive layer of a tempered glass panel, and FIGS. 8 to 11 are manufacturing process diagrams illustrating a tempered glass panel manufacturing process for protecting a touch screen according to the present invention.

As shown in FIG. 3, the reinforced glass panel for protecting a touch screen according to the present invention is formed into a shape of a touch screen of a mobile device such as a mobile phone or a notebook computer, and is attached to a touch screen of a mobile device, It plays a role.

4, the cross-sectional structure of the tempered glass panel for protecting a touch screen according to an embodiment of the present invention includes tempered glass 101, a scattering-preventive film 103, an adhesive film base 107 and a release film 109, As shown in Fig.

As shown in FIG. 4, a scattering prevention film 103 having a printing layer 105 formed on a rim portion is attached to a lower portion of the tempered glass 101 processed in the shape of a touch screen through an adhesive layer 102, 103 are attached to the tempered glass 101 to prevent the broken tempered glass from scattering when the tempered glass 101 is broken due to an external impact.

A protrusion-type adhesive layer 104 having an adhesive strength at a lower edge portion of the shrinkage prevention film 103 and protruding at a predetermined height is formed, and a printed layer 105 is formed on the rim through the protrusion-type adhesive layer 104 The adhesive film base 107 is attached.

A silicone adhesive layer 108 is formed on the lower surface of the adhesive film base 107, and the release film 109 is laminated.

The scattering prevention film 103 and the adhesive film base 107 are stacked and fixed via the projection type adhesive layer 104 as described above. An air pocket 106 space is formed between the substrates 107.

The air pocket 106 protects the touch screen from impact by buffering an impact transmitted to the touch screen when an impact is applied to the tempered glass panel 100 attached to the touch screen. In addition, the air pocket 106 prevents a moiré phenomenon from occurring by forming a space of a predetermined height in the tempered glass panel 100, so that a clean touch screen image can be seen.

The printing layer 105 formed on the shrinkage preventing film 103 and the adhesive film base 107 may be omitted and the printing layer 105 may be formed on the tempered glass 101. [

FIG. 5 illustrates a toughened glass panel 100 for protecting a touch screen according to another embodiment of the present invention. The toughened glass 101 has a print layer 105 formed thereon.

5, the printing layer 105 is formed on the tempered glass 101 in the same structure as the embodiment of the present invention, as shown in FIG.

The tempered glass panel 100 of the present invention having the above-described structure is attached to the curved touch screen with the rim portion thereof being in close contact with each other.

When the tempered glass panel 100 of the present invention is attached to the touch screen, the tempered glass 101 having no flexibility is attached to the touch screen 109 as shown in FIG. 6, Is attached to the touch screen (109).

That is, the adhesive film base 107 having the rim portion adhered and fixed via the projection-type adhesive layer 104 of a predetermined height formed on the rim of the lower portion of the tempered glass 101 is sandwiched between the tempered glass 101 The adhesive film base material 107 is adhered along the curved surface of the touch screen 109. As a result,

Therefore, even if the edge of the touch screen 109 is curved, the tempered glass panel 100 can be adhered to the touch screen 109 without lifting.

The protruding adhesive layer 104 is preferably formed at a height of 30 to 300 탆.

If the height of the projection-type adhesive layer 104 is less than 30 占 퐉, the height of the air pocket 106 is too low to cause a moiré phenomenon. When the height of the protruding type adhesive layer 104 exceeds 300 탆, the touch recognition may not be performed well. Therefore, the height of the projection-type adhesive layer 104 for determining the height of the air pocket 106 is preferably 30 to 300 mu m.

The cross-sectional shape of the protruding adhesive layer 104 may be various shapes such as a circular shape and a polygonal shape. Preferably, as shown in FIGS. 4 and 5, the curved shape of the edge portion of the touch screen 109 It is preferable to have a predetermined curved shape so as to correspond thereto.

In the tempered glass panel 100 touch screen constructed as described above, since the adhesive film base material 107 having flexibility after manufacturing is separated with the air gap between the tempered glass 101 and the air pocket 106, 4 and Fig. 5, but is not flat and is bent toward the tempered glass 101 side.

When the release film 109 is removed in this state and the tempered glass panel 100 is attached to a touch screen of a mobile phone or the like, the gravure and the elasticity of the adhesive film base 107 cause the adhesive film base 107 to contact the touch screen for the first time It is self-attached from one part to the whole area of the touch screen gradually.

At this time, the air inside the air pocket 106 flows to the outside so that the adhesive film base 107 is attached to the touch screen 109 at a high speed.

7, by opening any part of the projection-type adhesive layer 104 to form the flow path groove 110, air flows smoothly into the air pocket 106 through the flow path groove 110 So that the adhesive film base material 107 is attached to the touch screen 109 at a high speed when the tempered glass panel 100 is attached to the touch screen 109.

In recent years, touch screen liquid crystal glasses of recent smart phones have been processing curved surfaces of the edges to a width of 1 to 2 mm or more, and even curved surfaces of the touch screen liquid crystal glass are being curved. It is impossible to attach a conventional tempered glass panel for protecting the touch screen.

In addition, when curved surface of touch screen liquid crystal glass of smartphone is processed by CNC and polishing process, average roughness of 0.3 ~ 2.0mm may occur.

As described above, the tempered glass panel 100 can be adhered completely to the center of the liquid crystal glass of the touch screen as well as to the machining error occurring during the curving process.

A method for manufacturing a tempered glass panel for protecting a touch screen according to the present invention will be described.

As described above, the tempered glass panel for protecting the touch screen is formed by laminating a tempered glass, a scattering-resistant film and an adhesive film, and the position of the printed layer in the tempered glass, the scattering- As shown in FIGS. 8 to 11, according to the manufacturing method.

8 is a method for manufacturing a tempered glass panel for protecting a touch screen according to an embodiment of the present invention.

As shown in FIG. 8, a tempered glass is first prepared through a tempered glass outer and hole cutting (G / C), a bottom edge curved surface processing (G / R), and a tempered glass bottom printing (G / P) ,

A shatterproof film is prepared by applying an adhesive layer (S / F) on the upper surface of the shatterproof film, a release film laminate (S / L) on the upper surface of the film, and a protruding adhesive layer (S /

An adhesive film is prepared by applying an adhesive layer (R / F) on the lower side of the adhesive film, releasing film laminate (R / L) on the lower side of the film and printing (R / P) process on the upper edge of the film. The 'printing (R / P)' process on the film top edge of the adhesive film may be omitted.

The prepared anti-scattering film and the adhesive film are joined together and cut out in the form of a touch screen to be attached, and are then joined to the prepared tempered glass to produce a tempered glass panel 100 for protecting the touch screen.

One embodiment of the present invention is a method for manufacturing a tempered glass panel for protecting a touch screen by forming a printed layer on a tempered glass or a tempered glass and an adhesive film, and forming a projecting adhesive layer on the anti-scattering film.

Another embodiment of the method for manufacturing a tempered glass panel for protecting a touch screen according to the present invention is a method of manufacturing a tempered glass panel for protecting a touch screen, G / P) process,

A shatterproof film is prepared by applying an adhesive layer (S / F) on the top surface of the shatterproof film and a S / L process on the top surface,

(R / F) on the lower surface of the pressure-sensitive adhesive film, a releasing film laminate (R / L) on the lower surface, printing (R / P) on the upper surface edge and a protrusion- . The 'print (R / P)' fixation on the upper surface border may be omitted.

Another embodiment of the present invention is a method for manufacturing a tempered glass panel for protecting a touch screen by forming a print layer on a tempered glass or a tempered glass and an adhesive film, and forming a projective adhesive layer on the adhesive film.

Another embodiment of the method for manufacturing a tempered glass panel for protecting a touch screen according to the present invention is a method for manufacturing a tempered glass panel for protecting a touch screen through a tempered glass outer and hole cutting (G / C) Lt; / RTI >

(S / F) on the upper surface of the shatterproof film, a release film (S / L) on the upper surface, a printing on the lower edge (S / P) and a protrusion type adhesive layer formation (S / A shatterproof film is prepared,

An adhesive film is prepared by applying an adhesive layer (R / F) on the lower surface of the adhesive film, releasing film laminate (R / L) on the lower surface and printing (R / P) on the upper surface. The 'print on the top surface (R / P)' may be omitted.

Another embodiment of the present invention is a method for manufacturing a tempered glass panel for protecting a touch screen by forming a print layer on a light-scattering film or a light-scattering film and an adhesive film, and forming a projecting adhesive layer on the light-

A shatterproof film is prepared through an adhesive layer application (S / F) on the top surface of the shatterproof film, a release film laminate (S / L) on the top surface and a printing (S / P)

(R / F) on the lower surface of the adhesive film, a release film laminate (R / L) on the lower surface, printing (R / P) on the upper surface edge and a protrusion type adhesive layer formation (R / M) Prepare an adhesive film. The 'print on the top surface (R / P)' may be omitted.

Another embodiment of the present invention is a method for manufacturing a tempered glass panel for protecting a touch screen by forming a print layer on a light-scattering film or a light-scattering film and an adhesive film, and forming a laminating adhesive layer on the adhesive film.

The tempered glass panel for protecting a touch screen surface according to the present invention having the above-described structure can be manufactured in a simple manner, even when the glass flatness of the tempered glass panel is not perfect, It is possible to easily remove the air bubbles generated between the panel and the touch screen, to quickly attach the touch screen to the touch screen, to prevent the moire phenomenon, and even when the edge of the touch screen is curved, The reinforced glass panel can be adhered to the curved surface portion of the curved surface portion of the touch screen.

The tempered glass panel for protecting the touch screen according to the present invention and the manufacturing method thereof have been described above.

It will be understood by those skilled in the art that the technical features of the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, Ranges and equivalents thereof are to be construed as being included within the scope of the present invention.

100: Tempered glass panel
101: tempered glass
102: Adhesive layer
103: Shatterproof film
104: protruding type adhesive layer
105: Printed layer
106: Air pocket
107: Adhesive film base
108: Adhesive layer
109: release film
110: Euro home
G / C: Tempered glass exterior and hole cutting process
G / R: Curved surface of tempered glass frame
G / P: Tempered glass when printing on the edge of the process
S / F: adhesive layer application process on the top surface of the shatterproof film
S / L: Laminating film on top of shatterproof film
S / P: Shrinkage prevention film When printing process on edge
S / M: Process of forming protruding adhesive layer on the edge of the anti-scattering film
R / F: Adhesive layer coating process on the adhesive film
R / L: Laminating process for adhesive film
R / P: Printing process on the upper edge of adhesive film
R / M: Process of forming protruding adhesive layer on the upper surface of the adhesive film

Claims

Tempered glass 101 shaped in the form of a touch screen 109;
An anti-scattering film 103 bonded to the lower portion of the tempered glass 101 through an adhesive layer 102;
A protruding adhesive layer 104 formed at a predetermined height along the bottom edge of the shrinkage preventing film 103 and having adhesiveness;
An adhesive film base 107 adhered to the protruding adhesive layer 104 and formed on the entire surface of the anti-scattering film 103 under the anti-scattering film 103;
An air pocket 106 formed in a space between the anti-scattering film 103 and the adhesive film base 107; And
And a release film (109) adhered to the lower surface of the adhesive film base (107) through the adhesive layer (108).

The method according to claim 1,
Wherein the protrusion-type adhesive layer (104) is formed with a protrusion-type adhesive layer (104) in an open form so that a channel groove (110) for communicating the air pocket (106) with the outside is formed. Glass panel.

3. The method according to claim 1 or 2,
Wherein the height of the protrusion-type adhesive layer (104) is 30 to 300 占 퐉.

3. The method according to claim 1 or 2,
Wherein a printed layer (105) is formed on the adhesive film base (107).

3. The method according to claim 1 or 2,
Wherein a printed layer (105) is formed on a lower surface of the tempered glass (101) or a lower surface of the light shielding film (103).

Tempered glass is prepared through tempered glass exterior and hole cutting (G / C), top surface edge processing (G / R), and tempered glass bottom printing (G / P)
A shatterproof film is prepared by applying an adhesive layer (S / F) on the upper surface of the shatterproof film, a release film laminate (S / L) on the upper surface of the film, and a protruding adhesive layer (S /
An adhesive film was prepared by applying an adhesive layer (R / F) on the lower side of the adhesive film and a releasing film laminate (R / L) process on the lower side of the film,
A method for manufacturing a tempered glass panel for protecting a touch screen, comprising the steps of: laminating an anti-scattering film and an adhesive film on the outer surface of the touch screen;

Tempered glass is prepared through tempered glass exterior and hole cutting (G / C), curved edge (G / R), and top (G / P)
A shatterproof film is prepared by applying an adhesive layer (S / F) on the top surface of the shatterproof film and a S / L process on the top surface,
An adhesive film was prepared by applying an adhesive layer (R / F) to the lower surface of the adhesive film, releasing film laminate (R / L) on the lower surface and forming a projection type adhesive layer (R / M)
A method for manufacturing a tempered glass panel for protecting a touch screen, comprising the steps of: laminating an anti-scattering film and an adhesive film on the outer surface of the touch screen;

Toughened glass is prepared through tempered glass exterior and hole cutting (G / C) and edge curving (G / R)
(S / F) on the upper surface of the shatterproof film, a release film (S / L) on the upper surface, a printing on the lower edge (S / P) and a protrusion type adhesive layer formation (S / A shatterproof film is prepared,
An adhesive film was prepared by applying a pressure-sensitive adhesive layer (R / F) to the lower surface of the pressure-sensitive adhesive film and releasing film laminate (R / L)
A method for manufacturing a tempered glass panel for protecting a touch screen, comprising the steps of: laminating an anti-scattering film and an adhesive film on the outer surface of the touch screen;

Toughened glass is prepared through tempered glass exterior and hole cutting (G / C) and edge curving (G / R)
A shatterproof film is prepared through an adhesive layer application (S / F) on the top surface of the shatterproof film, a release film laminate (S / L) on the top surface and a printing (S / P)
An adhesive film was prepared by applying a pressure-sensitive adhesive layer (R / F) to the lower surface of the pressure-sensitive adhesive film, releasable film laminate (R / L) on the lower surface and protruding adhesive layer (R / M)
A method for manufacturing a tempered glass panel for protecting a touch screen, comprising the steps of: laminating an anti-scattering film and an adhesive film on the outer surface of the touch screen;