KR101664229B1 - Touch Screen Panel - Google Patents

Abstract

The present invention relates to a touch screen panel, and more particularly, to a touch screen panel in which an upper portion of a blackening layer formed on a metal pattern layer is formed to be bent so that a diffused reflection effect is added to maximize an antireflection effect.

Description

A touch screen panel {Touch Screen Panel}

The present invention relates to a touch screen panel.

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. .

In the touch screen panel, a metal electrode is formed on a top plate or a bottom plate according to a method of detecting a touched portion, and a resistive film type in which a touched position is determined as a voltage gradient according to a resistance (Capacitive type), which detects the touched part by detecting the position where the voltage change of the upper and lower plate due to the touch is formed by forming the equal potential on the conductive film, and the LC And an electromagnetic type in which a value is read and a touched portion is sensed. In addition, an optical method, an ultrasonic method, and the like 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.

5, Korean Patent Laid-Open Publication No. 2014-0014843 discloses a method of forming a blackening material layer 120 on a substrate 110 and forming a blackening material layer on the blackening material layer 120 And a step of printing the metal electrode pattern 130 and exposing the transparent substrate with 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.

Thereafter, the completed electrode pattern is formed with a metal electrode pattern 130 on the upper portion and an etched blackening 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 Laid-Open 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, And the blackening layer is formed to have a curved upper portion.

 The blackening layer is formed so that its cross-sectional area becomes smaller toward the upper portion. The upper edge portion of the blackening layer is formed in a curved shape, 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 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 having a shape having a rounded corner while continuing to the top of the first section. do.

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 blackening layer has a first section having a rectangular shape in cross section and a second section having a round shape on both sides of the first section while being continuously formed on an upper portion of the first section, Section.

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 sectional view of a touch screen panel according to another embodiment of the present invention;
3 is a cross-sectional view of a touch screen panel according to another embodiment of the present invention.
4 is a sectional view of a touch screen panel according to another embodiment of the present invention;
5 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 blackening layer 30 is formed to have a curved upper portion.

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 a touch screen panel is a transparent base material, for example, a transparent base material such as a tempered glass, a transparent film and a transparent plastic. In addition, any substrate that is transparent and usable as a touch screen panel is used It is possible.

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 is formed in a regular pattern.

The metal pattern layers 20 are arranged in a lattice pattern to form intersecting sections 21 where at least two or more of the metal pattern layers 20 cross each other.

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

The metal pattern layer 20 has a rectangular cross-sectional shape, and the upper surface is flat.

The blackening layer 30 is formed on the upper surface of the metal pattern layer 20.

In detail, a blackening layer 30 is formed on the upper surface of at least two or more metal pattern layers 20 of the crossing section 21. [

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 treatment on the surface side of the metal pattern layer 20 can be carried out by a black plating treatment such as black nickel or the like, a surface oxidation to an aqueous alkaline solution of copper chloride, a surface treatment such as a sulfurization blackening with a silver sulfide or the like.

The blackening layer 30 may be formed of a metal such as copper (Cu), nickel (Ni), chromium (Cr), tungsten (W), molybdenum (Mo), aluminum (Al), or copper, nickel, chromium, tungsten, molybdenum, And at least two of aluminum may be mixed.

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 in which the upper edge portion 31 has an arc shape.

The blackening layer 30 has a first section 30a having a rectangular section and a second section 30b having a rounded shape at both sides 31 of the first section 30a, And a second section 30b formed to be flat.

1, the blackening layer 30 may be formed to have only the second section 30b.

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 layer 20 can not be seen without any additional treatment. Therefore, the above treatment is limited to the metal pattern layer 20 having a line width of 1.5 탆 or more .

Hereinafter, another embodiment of the present invention will be described. In the other embodiments described below, detailed description of the same configuration as the above-described embodiment will be omitted.

2, a touch screen panel according to another embodiment includes a substrate 1 for a touch screen panel, a metal pattern layer (not shown) 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 blackening layer 30 is formed to be bent at an upper portion and includes a metal pattern layer 20 and a substrate 1 for a touch screen panel The base circuit layer 21 is formed.

The base circuit layer 21 is formed of a blackening layer made of a metal having a black-based color. This base circuit layer 21 maximizes the antireflection effect of the pattern.

The base circuit layer 21 is formed to have the same line width as the metal pattern layer 20.

The base circuit layer 21 has a rectangular cross section.

The base circuit layer 21 is formed of a metal such as copper (Cu), nickel (Ni), chromium (Cr), tungsten (W), molybdenum (Mo), aluminum (Al), or copper, nickel, chromium, tungsten, molybdenum , Or an alloy of at least two of aluminum.

The base circuit layer 21 may be formed by vacuum deposition on one surface of the substrate 1 for the touch screen panel. In the case of vacuum deposition under a predetermined thickness, any metal having a black color can be used .

The vacuum deposition may include thermal evaporation, ebeam deposition, laser deposition, sputtering, arc ion plating, etc., and forming the seed layer 100 may be formed on the substrate 1 for a touch screen panel using any one of evaporation, ebeam deposition, laser deposition, sputtering, and arc ion plating, The base circuit layer 21 of black type is formed on one surface of the base circuit layer 21.

3, a touch screen panel according to another embodiment includes a substrate 1 for a touch screen panel, a metal pattern layer (not shown) 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 blackening layer 30' includes a first section 30a having a width equal to the width of the metal pattern layer 20, And a second section 30b 'which is continuous with the upper portion of the first section 30a and has a rounded corner shape.

The second section 30b 'is formed in a convex shape in cross-sectional shape as a part of a sphere.

4, the blackening layer 30 '' in the above embodiments entirely covers the side surface 20a and the top surface 20b of the metal pattern layer 20 so that the metal pattern layer 20 is not exposed .

In addition, the blackening layer 30 '' surrounding each metal pattern layer 20 may be formed to be spaced apart from each other.

This process can be treated with a wet chemical.

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
20: metal pattern layer
20a: Side
20b: upper surface
21: Base circuit layer
30, 30 ', 30 ": blackening layer
30a: First section
30b: the second section
31: Corner

Claims (7)

A substrate for a touch screen panel;
A metal pattern layer formed on one surface of the substrate for the touch screen panel;
And a blackening layer formed on the metal pattern layer,
The blackening layer is formed to have a curved upper portion,
Wherein the blackening layer covers the side surfaces and the upper surface of the metal pattern layer so that the metal pattern layer is not exposed.
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;
And a blackening layer formed on the metal pattern layer,
Wherein the blackening layer has a first section having the same cross-sectional width as the cross-sectional width of the metal pattern layer, and a second section having a shape having a rounded corner while continuing to the top of the first section. .
A substrate for a touch screen panel;
A metal pattern layer formed on one surface of the substrate for the touch screen panel;
And a blackening layer formed on the metal pattern layer,
The blackening layer has a first section having a rectangular cross-sectional shape and a second section having a round cross-section on both sides of the first section and a second section having a flat upper surface, Features a touch screen panel.
The method according to claim 5 or 6,
Wherein the blackening layer covers the side surfaces and the upper surface of the metal pattern layer so that the metal pattern layer is not exposed.

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