KR20160084627A - Touch Screen Panel - Google Patents

Abstract

The present invention relates to a touch screen panel and, more specifically, to a touch screen panel which comprises upper portions of a metal pattern layer and a blackening layer which are indented to apply a scattered reflection effect, thereby maximizing a reflection preventing effect.

Description

A touch screen panel {Touch Screen Panel}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a touch screen panel, and more particularly, to a touch screen panel in which an upper portion of a metal pattern layer and a blackening layer are formed to be bent.

2. Description of the Related Art In recent years, various input devices such as a keyboard, a mouse, a trackball, a joystick, and a digitizer have been used to configure an interface between a user and a home appliance or various information communication devices.

However, the use of the above-described input device has a drawback in that it is required to learn how to use it and occupies a space, thereby making it difficult to improve the completeness of the product. Therefore, there is a growing demand for an input device that is convenient and simple and can reduce malfunctions.

In accordance with such a demand, a touch screen panel has been proposed in which a user directly touches a screen with a hand or a pen to input information.

The touch screen panel is simple, has little malfunction, can be input without using a separate input device, and can be operated quickly and easily through the contents displayed on the screen. .

The touch screen panel can be distinguished by a resistive type, a capacitive type, an electromagnetic type, etc. according to a method of detecting a touched portion. In addition, an optical method, an ultrasonic method Are known.

Generally, a touch screen panel is manufactured by attaching a transparent electrode film having a transparent electrode on a surface thereof to a cover glass.

The transparent electrode film is manufactured by coating an electrode material, for example, ITO (Indium Tin Oxide) on the surface, and forming a sensing electrode circuit by an etching process.

However, in the conventional touch screen panel, the resistance of the ITO (Indium Tin Oxide) electrode is high in a screen of 13 inches or more, and it is difficult to realize a multi-touch reduction in the touch speed.

In addition, indium, which is a main material of indium tin oxide (ITO), is a rare element, which is in danger of depletion and is expensive, which increases manufacturing cost of a touch screen panel.

In particular, ITO (Indium Tin Oxide) electrodes on a 13 inch or larger touch screen panel have a problem of excessive power consumption due to high resistance.

In addition, a touch screen panel can be manufactured by forming AgNW (Silver Nano Wire) on the entire surface of a transparent material and forming a transparent electrode by etching or laser processing. When a transparent electrode is formed using AgNW (Silver Nano Wire) There is a problem that the touch speed is excellent but the transparency is low due to low resistance.

In order to solve the above-described problems, Korean Patent Laid-Open Publication No. 2014-0014843 discloses a process for manufacturing a transparent electrode film of a touch panel, which comprises forming a blackening material layer 120 on a substrate 110 A step of printing the metal electrode pattern 130 on the blackening material layer 120 and exposing the transparent substrate using the metal electrode pattern 130 as an etching barrier.

Specifically, it is preferable to use a material such as glass, a transparent film, a polyethylene terephtalete (PET), a polycarbonate (PC), a polyether sulfone (PES), a polyimide (PI), or a polyimethly methacrylate A film material, or the like may be applied to the substrate 110.

A step of forming a blackening material layer 120 on the substrate 110 is performed. The blackening material layer 120 refers to a black metal oxide material. For example, any one selected from the group consisting of CuO, CrO, FeO, Ni 2 O 3, and AlN can be applied, and a black-based material capable of suppressing the reflectivity of the metal electrode pattern 130 described later can be applied. As a technique for laminating the blackening material layer 120 on the substrate 110, various coating methods can be applied, but a method of forming the blackening material layer 120 by depositing by applying various thin film deposition methods such as sputtering and evaporation is shown as an embodiment .

Thereafter, a process of printing the metal electrode pattern 130 on the blackening material layer 120 may be performed. The metal electrode pattern 130 may be formed using any one of silver (Ag), copper (Cu), and aluminum (Al). The metal electrode pattern 130 may be variously formed according to design. However, it is possible to implement a pattern in the form of a mesh.

The metal electrode pattern 130 may be formed by a variety of pattern printing methods such as a deposition method using a mask, a printing method, and the like. Alternatively, a reverse offset printing method may be used to directly print the electrode pattern on the substrate, A film can be produced.

Thereafter, a high-temperature sintering process may be added to the printed electrode pattern 130. In this case, the temperature of the sintering process may be in the range of 80 to 300 ° C.

The sintering process functions to harden the electrode pattern 130 and improve adhesion between the electrode pattern 130 and the blackening material layer 120.

The blackening material layer 120 may be selectively etched so that the structure of the electrode pattern 130 to be laminated on the blackening material layer 120 may be realized. 110) region can be implemented. In this case, the electrode pattern 130 acts as an etching barrier so that the blackening material layer 120 on the lower surface is not etched.

The completed electrode pattern is formed with a metal electrode pattern 130 on the upper portion and a blackened pattern on the etched pattern of the blackening material layer 120 on the lower portion.

The electrode pattern having such a structure can solve the problem that the reflected visible light increases due to the light reflection characteristic of the metal electrode pattern 130 due to the presence of the blackening pattern having the rectangular cross section as described above, An advantage of improving the characteristics is realized.

However, there is a problem in that reflection prevention of a metal pattern is not perfect with only a blackening material layer having a rectangular cross section.

Korean Patent Publication No. 2014-0014843

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a touch screen panel capable of maximizing an antireflection effect.

According to an aspect of the present invention, there is provided a touch screen panel including a substrate for a touch screen panel, a metal pattern layer formed on one surface of the substrate for the touch screen panel in the form of an electrode circuit, Wherein the upper surface of the metal pattern layer is formed to be bent and the upper surface of the blackening layer is formed to be bent.

The blackening layer may be formed to have a smaller cross-sectional area toward the upper portion. The blackening layer may have a curved upper edge portion, and the line width of the metal pattern layer may be 1.0 탆 or more.

According to an aspect of the present invention, there is provided a touch screen panel including a substrate for a touch screen panel, a metal pattern layer formed on one surface of the substrate for the touch screen panel in the form of an electrode circuit, Wherein the black pattern layer has a first section having a width equal to a cross sectional width of the metal pattern layer and a second section having an edge rounded at an upper portion of the first section, And a second section having a shape that is substantially the same as the first section.

According to an aspect of the present invention, there is provided a touch screen panel including a substrate for a touch screen panel, a metal pattern layer formed on one surface of the substrate for the touch screen panel in the form of an electrode circuit, Wherein the black pattern layer has a first section having a width equal to the width of the metal pattern layer and a second section having a width equal to the width of the metal pattern layer, And a second section having a round shape and having an upper surface flatly formed.

According to the touch screen panel of the present invention as described above, the following effects can be obtained.

The upper portion of the blackening layer formed on the metal pattern layer is formed to be bent so that the diffused reflection effect is added to maximize the antireflection effect.

The line width of the metal pattern layer is 1.0 占 퐉 or more, so that the formation of the metal pattern layer can be facilitated and the metal pattern layer can be prevented from being seen by human eyes.

1 is a sectional view of a touch screen panel according to a preferred embodiment of the present invention;
2 is a flowchart illustrating a method of manufacturing a touch screen panel according to a preferred embodiment of the present invention.
3 illustrates a conventional method of manufacturing a touch screen panel.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

For reference, the same components as those of the conventional art will be described with reference to the above-described prior art, and a detailed description thereof will be omitted.

1, a touch screen panel according to the present invention includes a substrate 1 for a touch screen panel, a metal pattern layer 20 formed in the form of an electrode circuit on one surface of the substrate 1 for the touch screen panel And a blackening layer 30 formed on the metal pattern layer 20. The upper surface 21 of the metal pattern layer 20 is curved and the upper surface 31 of the blackening layer 30 is curved And is formed to be bent.

The substrate 1 for a touch screen panel is provided with a flat plate whose upper and lower surfaces are flat.

The base material 1 for the touch screen panel is a transparent base material, for example, a transparent base material such as a tempered glass, a transparent film or a transparent plastic. In addition, any substrate that can be used as a touch screen panel It is clear that it is usable.

The metal pattern layer 20 is formed on one surface (upper surface) of the substrate 1 for the touch screen panel.

The metal pattern layer 20 may be formed of one of gold (Au), silver (Ag), copper (Cu), and aluminum (Al) As an example.

The upper surface 21 of the metal pattern layer 20 is formed to be bent.

The metal pattern layer 20 includes a first pattern portion having a rectangular cross-section, and a second pattern portion formed continuously on the first pattern portion and having an upper portion bent.

The second pattern portion may be formed in a shape in which both side edges of the cross section are round, and the top surface of the second pattern portion may be flat or have rounded corners.

The second pattern portion is formed to have a smaller cross-sectional area toward the upper portion.

The blackening layer 30 is formed on the upper surface 21 of the metal pattern layer 20. Therefore, the lower surface of the blackening layer 30 is formed to be bent so as to correspond to the shape of the upper surface 21 of the metal pattern layer 20.

The blackening layer 30 has a line width equal to that of the metal pattern layer 20 and is formed to correspond to the metal pattern layer 20. [

The blackening layer 30 is formed of a metal material having a black-based color. As a result, the reflection by the metal is reduced, and a microcircuit (which is not visually recognizable) is easily realized by the human eye, and transparency is further enhanced.

The blackening layer 30 is formed so that the upper portion thereof is bent so as to have a smaller cross-sectional area toward the upper portion.

In detail, the blackening layer 30 is formed so as to be convex upward.

In addition, the blackening layer 30 may be formed in a curved shape with an upper corner portion of an arc shape.

1, the blackening layer 30 includes a first section 30a having a cross-sectional width equal to the cross-sectional width of the metal pattern layer 20, and a second section 30b having a cross-section And has a second section 30b whose both sides have a round shape and whose upper surface is flatly formed.

The second section of the blackening layer 30 may be formed so as to be continuous to the upper portion of the first section and have rounded corners. For example, the second section may be formed in a convex shape with a cross-sectional shape as a part of a sphere.

The blackening layer 30 is formed as described above to be diffused reflection, thereby maximizing the antireflection effect.

In the case where the line width of the metal pattern layer 20 is 1.5 탆 or less, the metal pattern is not seen even if no additional processing is performed. Therefore, the above processing is performed only for the metal pattern layer 20 whose line width is 1.5 탆 or more.

The method for manufacturing a touch screen panel having the above-described configuration includes the steps of forming a first photosensitive layer 3 on a base material 1 for a touch screen panel 200 and forming a first photosensitive layer Forming a metal pattern layer 20 on a portion of the substrate 1 for a touch screen panel that is exposed with the first intaglio pattern 4; (330) of forming a second photosensitive layer (5) on the first photosensitive layer (3) and the upper surface (21) of the metal pattern layer (20) Forming a second engraved pattern 6 on the upper surface 21 of the metal pattern layer 20 in the first metal pattern layer 5 and the second engraved pattern 6 in the metal pattern layer 20; (360) of forming a blackening layer (30) on the exposed portions of the first photosensitive layer (3, 5) and removing (360) the first and second photosensitive layers (3, 5).

The base material 1 for the touch screen panel is a transparent base material, for example, a transparent base material such as a tempered glass, a transparent film or a transparent plastic. In addition, any substrate that can be used as a touch screen panel It is clear that it is usable.

The first photosensitive layer 3 is formed on the upper surface of the substrate 1 for the touch screen panel.

The first photosensitive layer 3 is formed on the surface of the substrate 1 for a touch screen panel to a thickness of 1 to 5 mu m.

A step 310 of forming the first engraved pattern 4 includes a light projecting pattern (not shown) covering a portion where the first engraved pattern 4 is formed, (Not shown) to cover the first photosensitive layer 3; And exposing the first photosensitive layer (3) covered with the mask to cure a portion of the first photosensitive layer (3) excluding the light transmitting pattern, and removing the light transmitting pattern portion to form a first engraved pattern (4) .

That is, the mask includes a light-transmitting pattern covering a portion corresponding to the first engraved pattern 4 formed on the first photosensitive layer 3, and a portion except for the light-transmitting pattern is formed in an open form.

A metal pattern layer 20 is formed on the inside of the first engraved pattern 4 through plating.

When the metal pattern layer 20 is formed using the intaglio patterning method, the upper surface 21 of the metal pattern layer 20 is formed to be curved due to a predetermined viscosity of the material of the metal pattern layer 20. Furthermore, the material of the metal pattern layer 20 can be applied so that the upper surface 21 of the metal pattern layer 20 is further bent.

It is confirmed that the shape of the electrode circuit is in the form of an electrode circuit designed to detect a touch so as to be formed on the surface of the substrate 1 for the touch screen panel and it can be a shape of an electrode circuit differently set according to the design.

Next, a second photosensitive layer 5 is formed on the upper surface 21 of the first photosensitive layer 3 and the metal pattern layer 20.

A second engraved pattern 6 is formed on the upper surface 21 of the metal pattern layer 20 in the second photosensitive layer 5.

For example, the second engraved pattern 6 may be formed in the same shape as the metal pattern layer 20.

The method of forming the second engraved patterns 6 may be the same as the method of forming the first engraved patterns 4. Therefore, a detailed description thereof will be omitted.

The blackening layer 30 is formed on the portion of the metal pattern layer 20 exposed by the second engraved pattern 6. [

The blackening layer 30 is formed by using the intaglio patterning method so that the blackening layer 30 is formed by bending the top surface 31 due to the viscosity of the material of the blackening layer 30 itself, 21 are formed on the bent metal pattern layer 20 so that the upper surface 31 can be formed to be more easily bent. Furthermore, the material of the blackening layer 30 can be selected and applied so that the upper surface 31 of the blackening layer 30 is further curved.

Then, the first and second photosensitive layers 3, 5 are removed from the substrate 1 for the touch screen panel to be removed.

Thus, the electrode circuit provided with the metal pattern layer 20 is formed.

According to another embodiment of the present invention, there is provided a method of manufacturing a touch screen panel, comprising: forming a metal pattern layer on a substrate for a touch screen panel; forming a photosensitive layer around the metal pattern layer and the metal pattern layer; Forming an engraved pattern on the photosensitive layer on the upper surface of the metal pattern layer; forming a blackening layer on the exposed portion of the metal pattern layer with the engraved pattern; and removing the photosensitive layer .

That is, as described above, the metal pattern layer may be formed by various other methods without forming the metal pattern layer using the engraved pattern.

A blackening layer is formed on the metal pattern layer by the intaglio patterning method so that the top surface of the blackening layer can be easily curved due to the viscosity of the material itself.

Furthermore, the upper surface of the metal pattern layer may be further bent so that the upper surface of the blackened layer formed on the metal pattern layer is further bent.

The step of forming the blackening layer may be treated with a chemical in a wet process.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims .

DESCRIPTION OF REFERENCE NUMERALS
1: substrate for touch screen panel
3: First photosensitive layer
4: 1st engraved pattern
5: Second photosensitive layer
6: 2nd engraved pattern
20: metal pattern layer
21: metal pattern layer upper surface
30: Blackening layer
30a: First section
30b: the second section
31: Blackening layer upper surface

Claims (6)

A substrate for a touch screen panel;
A metal pattern layer formed on one surface of the substrate for the touch screen panel in the form of an electrode circuit;
And a blackening layer formed on the upper surface of the metal pattern layer,
Wherein the upper surface of the metal pattern layer is curved and the upper surface of the blackening layer is curved.
The method according to claim 1,
Wherein the blackening layer is formed to have a smaller cross-sectional area toward the upper portion.
3. The method according to claim 1 or 2,
Wherein the blackened layer has a curved upper edge portion.
3. The method according to claim 1 or 2,
Wherein the line width of the metal pattern layer is 1.0 占 퐉 or more.
A substrate for a touch screen panel;
A metal pattern layer formed on one surface of the substrate for the touch screen panel in the form of an electrode circuit;
And a blackening layer formed on the upper surface of the metal pattern layer,
The upper surface of the metal pattern layer is formed to be bent,
Wherein the blackening layer has a first section having a cross-sectional width equal to the cross-sectional width of the metal pattern layer, and a second section formed continuously on the first section and having a rounded corner shape. .
A substrate for a touch screen panel;
A metal pattern layer formed on one surface of the substrate for the touch screen panel in the form of an electrode circuit;
And a blackening layer formed on the upper surface of the metal pattern layer,
The upper surface of the metal pattern layer is formed to be bent,
Wherein the blackening layer has a first section having a width equal to the width of the metal pattern layer and a second section formed continuously on the first section and having rounded sides on both sides and having a flat upper surface, Wherein the touch screen panel comprises:

Images