WO2014133347A1

WO2014133347A1 - Structure of touch pad using dummy pattern for capacitive type touch screen

Info

Publication number: WO2014133347A1
Application number: PCT/KR2014/001648
Authority: WO
Inventors: 김태일; 최범희; 김상진; 김달수
Original assignee: 미래나노텍 주식회사
Priority date: 2013-02-27
Filing date: 2014-02-27
Publication date: 2014-09-04

Abstract

Disclosed is a structure of a touch pad using a dummy pattern for a capacitive type touch screen. The structure of a touch pad using a dummy pattern for a capacitive type touch screen according to the present invention comprises: a first sensor part having first sensor patterns formed in a first direction and first dummy patterns arranged between the first sensor patterns; and a second sensor part having second sensor patterns formed in a second direction, intersected with the first direction, and second dummy patterns arranged between the second sensor patterns, wherein the second sensor part overlaps with the first sensor part, wherein each of the first dummy patterns and the second dummy patterns comprises at least two sub-dummy patterns which are physically separated.

Description

Structure of touch pad using dummy pattern for capacitive touch screen

The present invention relates to a structure of a touch pad for a capacitive touch screen, and more particularly, to a structure of a touch pad using a dummy pattern for a capacitive touch screen.

Recently, various portable terminals such as mobile phones, PDAs, and MP3 players have been downsized in size to improve portability. In addition, in order to provide images of good quality through such portable terminals, displays applied to them are being enlarged. In order to meet the demand for miniaturization of the portable terminal itself and the increase in the size of the display applied thereto, a touch screen method that enables a user's input to the display itself is mainly employed. In addition, large screen TVs or monitors, such as liquid crystal displays (LCDs), plasma display panels (PDPs), organic light emitting diodes (OLEDs), and active matrix organic light emitting diodes (AMOLEDs), are also being used.

Such a touch screen is a device that enables the user's input by grasping the coordinates of the touched position when the user directly touches a character or a specific position on the screen or touches a human hand or a touch fan. The touch screen includes a capacitive type, a resistive film type, a surface ultrasonic type, an infrared type, and the like according to its operation principle.

In particular, the capacitive touch screen converts a contact position into an electrical signal by detecting a change in capacitance that the conductive sensor pattern forms with other sensor patterns or ground electrodes, etc., when a human hand or an object comes in contact.

In this case, in order to clearly determine the contact position on the contact surface, the sensor pattern may include first sensor patterns or X direction patterns formed to be connected in a first direction and second sensor patterns or Y direction formed to be connected in a second direction. It can be configured to include patterns.

The first sensor patterns and the second sensor patterns are each disposed on different layers. For example, the first sensor patterns are located in the upper layer and the second sensor patterns are located in the lower layer, and a dummy pattern is disposed between the first sensor patterns and between the second sensor patterns.

1A to 1B are diagrams illustrating an arrangement form of a sensor pattern and a dummy pattern according to the prior art.

Referring to FIG. 1A, dummy patterns 111 are disposed between sensor patterns 110 in a touch pad according to the related art, but the dummy patterns are not connected to each other. In case of partial short circuit between the sensor pattern and the dummy pattern, current flows from the sensor pattern into one dummy pattern.

Referring to FIG. 1B, the dummy patterns 111a are disposed between the sensor patterns 110 in the touch pad according to the related art, but the dummy patterns are also connected to each other (111b). In case of partial short circuit between the sensor pattern and the dummy pattern, current flows from the sensor pattern to the entire dummy pattern.

2A to 2B are diagrams for describing a malfunction caused by a short circuit in the touch panel.

Referring to FIG. 2A, when a part of a specific sensor pattern in a touch pad is touched, a change in capacitance of the part may be recognized by each sensor connected to the X-axis and the Y-axis to determine a touch coordinate.

Referring to FIG. 2B, when a partial short circuit occurs between the sensor pattern and the dummy pattern, when a part of the specific sensor pattern is touched, current flows from the sensor pattern into the dummy pattern.

In particular, when the dummy patterns are connected to each other, rather than when the dummy patterns are not connected to each other, when partial synthesis between the sensor pattern and the dummy pattern occurs, excessive power failure occurs because the current flowed from the sensor pattern flows into the entire dummy patterns. This results in a change in capacity, which in turn impedes the determination of the correct contact location.

Therefore, to solve the problems of the prior art, an object of the present invention is to place a dummy pattern between the sensor pattern, a capacitive touch screen to divide the formed dummy pattern into a plurality of preset forms to form To provide a structure of a touch pad using a dummy pattern for.

Another object of the present invention is to place a dummy pattern between the sensor patterns, the touch pad using a dummy pattern for a capacitive touch screen to form a regular or irregular disconnection of the mesh constituting the disposed dummy pattern To provide structure.

Another object of the present invention is to arrange a dummy pattern between the sensor patterns, the auxiliary dummy pattern is located between the sensor pattern and the dummy pattern spaced apart by a predetermined distance along the interface between the sensor pattern and the dummy pattern physically separated To provide a structure of a touch pad using a dummy pattern for a capacitive touch screen to form.

However, the object of the present invention is not limited to the above-mentioned matters, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above objects, the structure of a touch pad using a dummy pattern for a capacitive touch screen according to an aspect of the present invention is provided between the first sensor patterns formed in a first direction and the first sensor patterns. A first sensor unit in which first dummy patterns are arranged; And a second sensor part overlapping the first sensor part and having second sensor patterns formed in a second direction crossing the first direction and between the second sensor patterns, wherein the second dummy patterns are arranged. Each of the first dummy patterns and the second dummy patterns may include at least two sub dummy patterns physically separated from each other.

Preferably, the first dummy patterns are disposed in an area corresponding to the positions of the second sensor patterns, and the second dummy patterns are disposed in an area corresponding to the positions of the first sensor patterns.

Preferably, each of the first dummy patterns and the second dummy patterns is composed of at least two sub dummy patterns, and the sub dummy patterns have different numbers of sub dummy patterns.

Preferably, the boundary line of each of the separated at least two sub-dummy patterns is formed to be parallel to each other in the direction of the mesh constituting the dummy pattern.

Preferably, the boundary line of each of the separated at least two sub-dummy patterns is formed not to be parallel to each other in the direction of the mesh constituting the dummy pattern.

Preferably, each of the first dummy patterns and the second dummy patterns is formed of two or more sub dummy patterns having a predetermined shape, and each of the two or more sub dummy patterns is a first dummy pattern or a second dummy pattern. It is characterized in that it is formed to have the same shape and the same area as the entire outer shape of the pattern.

Preferably, each of the first dummy patterns and the second dummy patterns is formed of two or more sub dummy patterns having a predetermined shape, and each of the two or more sub dummy patterns is a first dummy pattern or a second dummy pattern. It has a shape different from the overall outer shape of the pattern, characterized in that formed to have an equal area.

Preferably, each of the first dummy patterns and the second dummy patterns is formed of two or more sub dummy patterns having a predetermined shape, and each of the two or more sub dummy patterns is a first dummy pattern or a second dummy pattern. It is characterized in that it is formed to have a shape different from the shape of the entire outline of the pattern and have a different area.

Preferably, each of the first dummy patterns and the second dummy patterns is formed of at least two sub dummy patterns physically separated by disconnecting a mesh therein regularly or irregularly.

Preferably, each of the first dummy patterns and the second dummy patterns may break and divide a mesh regularly within a preset range, wherein the lengths of the broken lines are the same.

Preferably, each of the first dummy patterns and the second dummy patterns may break and divide the mesh irregularly within a preset range, wherein the lengths of the broken lines are different from each other.

In addition, the structure of the touch pad using the auxiliary dummy pattern for the capacitive touch screen according to the present invention is located between the first sensor pattern and the first dummy pattern, and between the first sensor pattern and the first dummy pattern. A first auxiliary dummy pattern spaced apart along the interface to be physically separated from the first dummy pattern; And a second auxiliary dummy pattern disposed between the second sensor pattern and the second dummy pattern and spaced apart along the interface between the second sensor pattern and the second dummy pattern to be physically separated from the second dummy pattern. It further comprises.

According to another aspect of the present invention, a structure of a touch pad using an auxiliary dummy pattern for a capacitive touch screen includes first dummy patterns formed between first sensor patterns and first sensor patterns formed in a first direction. A first sensor unit on which the first auxiliary dummy pattern is arranged; And second dummy patterns and a second auxiliary dummy pattern arranged between the second sensor patterns and the second sensor patterns overlapping the first sensor unit and formed in a second direction crossing the first direction. And a second sensor unit, wherein the first auxiliary dummy pattern is positioned between the first sensor patterns and the first dummy patterns, and the first auxiliary dummy pattern is formed of the first sensor patterns and the first dummy pattern. The second auxiliary dummy pattern is positioned between the second sensor patterns and the second dummy patterns, and the second auxiliary dummy pattern is spaced apart from each other along the interface between the two second dummy patterns. And spaced apart from each other along the interface between the patterns and the second dummy patterns.

Preferably, each of the first auxiliary dummy pattern and the second auxiliary dummy pattern is formed to be spaced apart along an outline of the corresponding first sensor patterns and the second sensor patterns. It is characterized in that it is formed to have the same shape as the outline of the two sensor patterns.

Preferably, each of the first auxiliary dummy pattern and the second auxiliary dummy pattern is formed to be physically separated from the first dummy patterns and the second dummy patterns, and the first dummy patterns and the second dummy patterns are physically separated from each other. Each of the patterns is characterized in that formed in combination with the dummy connection.

Preferably, each of the first auxiliary dummy pattern and the second auxiliary dummy pattern is formed to be physically separated from the first dummy patterns and the second dummy patterns, and the first dummy patterns and the second dummy patterns are physically separated from each other. Each of the patterns may be formed to be physically separated from the dummy connection portion.

Preferably, each of the first auxiliary dummy pattern and the second auxiliary dummy pattern is formed to be physically separated from the first dummy patterns and the second dummy patterns, and the first dummy patterns and the second dummy patterns are physically separated from each other. It is characterized in that it is formed to surround the outside of the pattern.

According to another aspect of the present invention, a structure of a touch pad using a dummy pattern for a capacitive touch screen includes: a plurality of sensor patterns formed on a substrate to sense a touch signal; A plurality of wiring electrodes connected to each of the plurality of sensor patterns to transfer the touch signal; And a plurality of dummy patterns formed in a space between the plurality of sensor patterns or the plurality of wiring electrodes, wherein each of the plurality of dummy patterns includes two or more sub dummy patterns physically separated from each other. It is done.

Preferably, the plurality of sensor patterns include: a plurality of first sensor patterns disposed in a first direction on one surface of the substrate; And a plurality of second sensor patterns disposed in a second direction crossing the first direction on the same surface on which the first sensor patterns are disposed, wherein the dummy patterns are disposed between the second sensor patterns. The wiring electrodes may be arranged in a space formed as the wiring electrodes are connected to the sensor patterns.

Preferably, the plurality of sensor patterns include: a plurality of first sensor patterns disposed in a first direction on one surface of the substrate; And a plurality of second sensor patterns disposed on the other surface of the substrate in a second direction crossing the first direction.

Preferably, the plurality of dummy patterns may have different sizes depending on the size of the space formed between the plurality of sensor patterns or the plurality of wiring electrodes.

Preferably, each of the plurality of dummy patterns is composed of at least two or more sub-dummy patterns, characterized in that the number of different sub-dummy patterns.

Preferably, each of the plurality of dummy patterns is composed of two or more sub-dummy patterns having a predetermined shape, wherein each of the two or more sub-dummy patterns has a different shape and a different area than the overall outer shape of the dummy pattern. Characterized in that it is formed to have.

Preferably, each of the plurality of dummy patterns is formed of at least two or more sub-dummy patterns physically separated by disconnecting a mesh therein regularly or irregularly.

Preferably, each of the plurality of dummy patterns is divided into irregularly broken meshes within a predetermined range, and the lengths of the broken lines are different from each other.

According to another aspect of the present invention, a structure of a touch pad using a dummy pattern for a capacitive touch screen includes: a plurality of sensor patterns formed on a substrate to sense a touch signal; A plurality of wiring electrodes connected to each of the plurality of sensor patterns to transfer the touch signal; A plurality of dummy patterns formed in the space between the plurality of sensor patterns or the plurality of wiring electrodes; And a plurality of auxiliary dummy patterns formed between the plurality of sensor patterns and the plurality of dummy patterns or between the plurality of wiring electrodes and the plurality of dummy patterns.

Preferably, each of the plurality of dummy patterns and the plurality of auxiliary dummy patterns is divided into a plurality of pieces.

Through this, the present invention is to arrange the dummy pattern between the sensor pattern, formed by dividing the arranged dummy pattern into a plurality of predetermined forms or formed by regular or irregular disconnection of the mesh constituting the arranged dummy pattern or the sensor Located between the pattern and the dummy pattern to be spaced apart by a predetermined distance along the interface between the sensor pattern and the dummy pattern to form a physically separated auxiliary dummy pattern, even if a partial short between the sensor pattern and the dummy pattern occurs, the stability of the function There is an effect that can be secured.

In addition, the present invention has the effect of improving the sensor operation by minimizing the current flowing into the dummy pattern from the sensor pattern through the division of the dummy pattern or disconnection of the mesh.

In addition, the present invention has an effect of improving the yield even if the sensor pattern and the dummy pattern is part of the short-circuit because the short-circuit range is not a problem to the product use enough to discard the product itself.

3 is a view showing the shape of the sensor patterns according to an embodiment of the present invention.

4A to 4C are exemplary views illustrating a sensing unit, a connecting unit, and a dummy unit of a touch screen sensor substrate according to an exemplary embodiment of the present invention.

5 is an exemplary view illustrating an enlarged view of a sensing part, a connecting part, and a dummy part of a touch screen sensor substrate according to an exemplary embodiment of the present invention.

6 is an exemplary view illustrating a mesh-shaped pattern forming a sensing unit, a connecting unit, and a dummy unit of the touch screen sensor substrate according to an exemplary embodiment of the present invention.

7A to 7B are cross-sectional views of a touch screen sensor substrate according to an embodiment of the present invention.

8A is an exemplary diagram illustrating a configuration of a touch screen sensor according to an embodiment of the present invention.

8B is a cross-sectional view of a touch screen sensor according to an embodiment of the present invention.

9A to 9C are first views illustrating the shape of a touch pad according to an embodiment of the present invention.

10A to 10C are second views illustrating the shape of a touch pad according to an embodiment of the present invention.

11A to 11B are first views illustrating the shape of a dummy pattern according to an embodiment of the present invention.

12A to 12B are second views illustrating the shape of a dummy pattern according to an embodiment of the present invention.

13A to 13B are third views illustrating the shape of a dummy pattern according to an embodiment of the present invention.

14A to 14B are fourth views illustrating the shape of a dummy pattern according to an embodiment of the present invention.

FIG. 15 is a fifth view illustrating the shape of a dummy pattern according to an embodiment of the present invention. FIG.

16 is a diagram illustrating an arrangement form of an auxiliary dummy pattern according to an embodiment of the present invention.

17 is a sixth view illustrating the shape of a dummy pattern according to an embodiment of the present invention.

18A to 18B are seventh diagrams illustrating the shape of a dummy pattern according to an embodiment of the present invention.

19 is a diagram illustrating a configuration of a touch screen sensor according to another embodiment of the present invention.

20 is an enlarged view of a shape of a sensor pattern, a dummy pattern, and a wiring electrode illustrated in FIG. 19.

FIG. 21 is an enlarged view illustrating an arrangement position and a shape of the dummy pattern illustrated in FIG. 19.

Hereinafter, a structure of a touch pad using a dummy pattern for a capacitive touch screen according to an embodiment of the present invention will be described with reference to the accompanying drawings. It will be described in detail focusing on the parts necessary to understand the operation and action according to the present invention.

In addition, in describing the components of the present invention, different reference numerals may be given to components having the same name according to the drawings, and the same reference numerals may be given even though they are different drawings. However, even in such a case, it does not mean that the corresponding components have different functions according to the embodiments, or does not mean that they have the same functions in different embodiments, and the functions of the respective components may be implemented. Judgment should be made based on the description of each component in the example.

Particularly, in the present invention, a dummy pattern is disposed between the sensor patterns, but 1) the dummy pattern is divided into a plurality of sub-dummy patterns having a plurality of preset shapes, or 2) an internal dummy pattern is formed. 3) a new touch that is formed by disconnecting the mesh regularly or irregularly, or 3) is positioned between the sensor pattern and the dummy pattern to form a physically separated auxiliary dummy pattern spaced by a predetermined distance along the boundary between the sensor pattern and the dummy pattern. We propose a structure of a pad or a sensor substrate.

The reason why the dummy pattern disposed between the sensor patterns is divided into a sub dummy pattern or a dummy pattern and an auxiliary dummy pattern is to prevent the current flowing from the sensor pattern from flowing into the entire dummy pattern during a short circuit.

As shown in FIG. 3, the sensor patterns according to the present invention are arranged to cross each other. The first sensor patterns 110 for detecting the X coordinate and the second sensor patterns 210 for detecting the Y coordinate are shown. It may include.

For example, the first sensor patterns 110 may be regularly formed in a first direction, for example, a vertical direction, as patterns for detecting an X coordinate. The second sensor patterns 210 may be regularly formed in a second direction, for example, a horizontal direction, as patterns for detecting a Y coordinate.

The first sensor patterns 110 include a plurality of first sensing units 110a and a connection unit 110b connecting the first sensing units 110a, and likewise, the second sensor patterns 210 also include a plurality of first sensing units 110a. It may include a connection unit 210b for connecting the second sensing unit 210a and the second sensing unit 210a.

4A to 4C are exemplary views illustrating a sensing unit and a connection unit of the touch screen sensor substrate according to the present embodiment.

Referring to FIG. 4A, the touch screen sensor substrate according to the present exemplary embodiment may include a plurality of sensing units 110a formed of electrodes connected to patterns on one surface of the substrate in a predetermined direction, and patterns having the same or similar direction as that of the pattern. It is formed of an electrode to be connected, and includes a connecting portion (110b) for connecting the sensing unit (110a).

In addition, referring to FIG. 4B, in the present embodiment, the touch screen sensor substrate is formed of an electrode adjacent to the sensing unit 110a and connected in a pattern of the same or similar direction as that of the pattern, so that the visibility of the sensing unit 110a is improved. A plurality of dummy patterns 111a for reducing the number of pixels are used.

Here, the sensing unit 110a and the dummy pattern are electrodes provided to detect a user's touch signal, and are formed of a conductive material in the present invention, and the conductive material may be opaque.

In addition, the dummy pattern 111a is an electrode formed adjacent to or adjacent to the sensing unit 110a, and as a name means, a dummy pattern is formed in a pattern similar to the shape of the sensing unit 110a. An electrode or a combination thereof is formed in an inactive state so as not to detect a touch signal. Therefore, the sensing unit 110a and the dummy pattern 111a are formed to be electrically insulated. The reason for forming the dummy pattern 111a on the substrate is that the sensing unit 110a, which is not formed of a transparent electrode material, is formed on the front surface of the touch screen sensor, and the sensing unit 110a is formed by external light irradiated to the touch screen sensor. This is to prevent the phenomenon which is recognized.

4A to 4B, the sensing unit 110a and the dummy pattern 111a are formed in a straight line shape, but the present invention is not limited thereto and may be formed in various patterns. It is possible to form the entire shape of the part 110a in the shape of diamond, trapezoid, rhombus, or the like.

Meanwhile, the electrode is an electrode provided to transmit a touch signal sensed by the sensing unit 110a to an external driving circuit (not shown), and at the same time when the sensing unit 110a and the dummy pattern 111 are formed on the substrate. It is preferably formed. In the present invention, since the matter regarding the electrode is beyond the scope of the invention, a detailed description thereof will be omitted.

Also, referring to FIG. 4C, the sensing unit 110a, the dummy pattern 111a, and the sensing connection unit 110b of the touch screen sensor substrate according to the present exemplary embodiment may be formed of electrodes connected in the same or similar pattern in a predetermined direction. It is preferable. In addition, when the dummy connection part is included, it is preferable that the dummy connection part is also formed of electrodes connected in the same or similar pattern in a predetermined direction.

In the present embodiment, the pattern in a constant direction is a continuous pattern. In this embodiment, as shown in FIG. 3, it is preferable that the lines formed in the predetermined direction cross each other.

The same or similar pattern in this embodiment means that the repetition period and the repeating shape are geometrically identical in the repetition of the pattern, and that the repetition note and the repetition shape are formed within an acceptable tolerance range that is predetermined by software. It is preferable to include the case where it becomes. Therefore, in the present exemplary embodiment, when there are not only the electrode patterns of the sensing unit 110a and the dummy pattern 111a but also the sensing connecting unit 110b and the dummy connecting unit 111b connecting them, the electrode patterns of the dummy connecting unit 111b are the same. Therefore, the visibility of the detection unit 110a recognized by the user may be reduced.

In addition, the pattern in a predetermined direction is formed in a continuous pattern, it is preferable to form a part of the pattern to form the sensing unit (110a) and the dummy pattern (111a). In addition, a portion of the pattern is broken when the sensing unit 110a, the dummy pattern 111a, the sensing connection unit 110b, and the dummy connection unit 111b exist, and the edge of the pattern of the dummy connection unit 111b is opened. It is preferably formed.

As described above, a part of the pattern broken at the boundary between the detector 110a and the dummy pattern 111a is to be electrically insulated from the detector 110a and the dummy pattern 111a. Opening of the edge of the pattern 110a and the pattern of the dummy pattern 111a means that the edge is not connected to the edge electrode as shown in FIG. 5. 5 is an enlarged view of a portion of FIG. 4B. Referring to FIG. 5, the edge is opened and connected to the edge electrode to solve the problem of continuity disappearing and disconnection. The visibility of the detection unit 110a may be reduced by recognizing that the image is recognized.

In the present embodiment, the pattern is preferably a mesh-shaped pattern in which lines formed in a predetermined direction cross each other, as shown in FIGS. 4A to 4C. In the present invention, the mesh shape may include both a regular mesh shape and an atypical mesh shape. The mesh shape in which lines formed in a predetermined direction cross each other means to form a mesh-like pattern of a mesh shape or a mesh shape as a whole.

It is also preferable that the mesh-shaped lines of the patterns intersecting with each other have the same line width and pitch defining the spacing between the lines, or have a line width or pitch of preset similarity. In the present embodiment, the line width or pitch is the same or has a line width or pitch of a predetermined similarity means that a predetermined range of values shown in [Table 1] are obtained to obtain a predetermined fill factor.

Table 1

Line width (㎛)	Pitch (μm)	Fill Factor (%)
1-5	100	1.9-10
	200	2.5-50
	300	1.9-3.5
	400	1.4-2.5
	500	0.4-1.9
	600	0.3-1.7
6-10	100	11-19
	200	5.9-10
	300	3.9-7.0
	400	2.9 to 5.0
	500	2.3 ~ 3.9
	600	1.9 ~ 3.3

In addition, in this embodiment, the mesh-shaped lines that cross each other are preferably tilted according to a predetermined angle. Referring to FIG. 6, the lines formed in this embodiment have a pattern inclined at 45 ° with respect to the horizontal axis, and the inclined form increases the ratio of electrodes for detecting a touch input per unit area to increase the accuracy of detection. Further, the predetermined angle to be tilted is preferably an angle determined in order to prevent occurrence of moiré phenomena due to mutual interference between the pattern in a predetermined direction and the pattern and the other pattern. In the present embodiment, the interference between the pattern and the other pattern may be that the patterns of the electrodes formed on the substrates cause interference when a plurality of substrates sensing touch positions in different directions are stacked, or the image information display unit displaying image information. It may be generated with the patterns formed by the plurality of pixels included in the.

The moiré phenomenon is generally a natural interference phenomenon that is formed when two independent periodic patterns are stacked at an angle. The moiré pattern refers to wave-shaped curves, ripples, and fluctuations in intensity in the form of small bundles that are stacked with the display image of the screen.

7A to 7C are cross-sectional views of a touch screen sensor substrate according to an embodiment of the present invention.

7A to 7C, the touch screen sensor substrate according to the present exemplary embodiment includes a substrate 100b, a resin layer 100a, and an electrode layer 112.

The substrate 100b is preferably formed of a transparent substrate 100b. That is, the substrate 100b having a certain transparency, the transparent substrate 100b is PET (Polyethylene Terephthalate), PI (Polymide), acrylic (Acryl), polycarbonate (PC), triacetate cellulose (TAC), polymethyl meta It may be formed in the form of a transparent thin film using at least one of Crescent (PMMA), polyether sulfone (PES), polyethylene naphthalate (PEN), or glass (glass).

The resin layer 100a is laminated on the base material 100b and has a patterned engraving on one surface thereof. Specifically, the resin layer 100a is laminated on the transparent substrate 100b, and the intaglio shape is imprinted on the resin layer 100a by using an embossed mold corresponding to the desired intaglio shape. Is formed. That is, the intaglio is formed in the resin layer 100a by using an embossed mold. Accordingly, one or more intaglio forms a pattern. A cross section of the resin layer 100a having the intaglio may have a recessed shape of any one of a rectangle, a triangle, and a trapezoid. If the embossed shape of the mold is rectangular, the intaglio shape formed in the resin layer 100a is also rectangular. If the embossed shape of the mold is triangular, the intaglio shape formed in the resin layer 100a is also triangular. Of course, the intaglio shape formed in 100a) is also trapezoidal. In the resin layer 100a, the width of the intaglio may be in the range of 1 μm to 10 μm, the depth in the range of 1 μm to 10 μm, and the pitch between the intaglio and the intaglio may be in the range of 200 μm to 600 μm. Of course, this is only one embodiment, and the width, depth, and pitch of the intaglio may be variously modified. In addition, the resin layer 100a is preferably implemented with UV (UltraViolet) resin or thermosetting resin.

The electrode layer 112 is formed by filling a conductive material in the intaglio. When the sensing unit 110a, the dummy pattern 111, the sensing connection unit 110b, and the dummy connection unit exist, a dummy connection unit (not shown) It is formed on the electrode layer 112. Examples of the conductive material may include copper (Cu), silver (Ag), aluminum (Al), nickel (Ni), chromium (Cr), nickel-phosphorus (Ni-P), and the like.

The sensing unit 110a and the dummy pattern 111 may be formed at the same time, and may be formed of the same conductive material. However, as described above, the sensing unit 110a is an electrically active electrode that senses and transmits a touch signal. Pattern 111 is an electrically inert electrode.

In addition, the touch screen sensor substrate according to the present exemplary embodiment may have visibility of a dummy connector (not shown) when the sensing unit 110a, the dummy pattern 111, the sensing connector 110b, and the dummy connector are formed on the electrode layer 112. The black layer 114 may be further reduced, and the black layer 114 may be stacked on the negative electrode layer 112 or between the resin layer 100a and the electrode layer 112. Referring to FIG. 7A, in the present embodiment, the black layer 114 is stacked between the resin layer 100a and the electrode layer 112 to surround the electrode layer 112 at an intaglio formed in the resin layer 100a. It is also possible to further reduce the visibility of the electrode layer 112 by further including 114, and further, according to another embodiment, referring to FIG. 7B, the black layer 114 does not enclose the electrode layer 112. The electrode layer 112 is internally stacked in a form of covering. Accordingly, the sensor plate according to the present embodiment prevents the electrode layer from being visually recognized by using the black layer. In this embodiment, the black layer is conductive, including carbon black, and it is preferable to use a black metal material.

According to another exemplary embodiment, referring to FIG. 7C, the electrode layer 112 may be formed inside the intaglio formed in the resin layer 100a and may be embossed on the resin layer 100a. The electrode layer 112 may have an embossed conductive material formed on the numerical layer 100a by a transfer or lithography process.

8A to 8B are exemplary diagrams for describing a touch screen sensor according to a second embodiment of the present invention.

Referring to FIG. 8A, the first sensor unit 100 and the second sensor unit 200 according to the present exemplary embodiment are bonded to each other to form a touch screen sensor. That is, the first sensor unit 100 and the second sensor unit 200 may be bonded to each other by forming upper and lower substrates, and the adhesive layer 300 may be disposed therebetween. The adhesive layer 300 may maintain the transparency of the touch screen sensor by using an optical clear adhesive (OCA).

The second sensor unit 200 includes a plurality of second sensing units 210a formed of electrodes connected to the other surface of the substrate in a second direction in a predetermined direction, and electrodes connected in a pattern of the same or similar direction as the second direction. And a second sensing connector 210b connecting the second sensing unit 210. Referring to FIG. 8B, in the present embodiment, when the first sensor unit 100 and the second sensor unit 200 are formed on both sides of the same substrate, the surface on which one substrate is formed is one surface. The other side of the substrate on which the substrate is not formed is called the other side. In addition, although the first and

second sensor parts

100 and 200 are bonded to each other through the pressure-sensitive adhesive layer 300 in the present embodiment, the substrates may be joined to face each other. to be. Furthermore, the first sensor unit and the second sensor unit may be formed on each surface of the plurality of substrates.

In addition, the first sensor unit 100 of the touch screen sensor according to the present embodiment is formed of an electrode adjacent to the first sensing unit 110a and connected in a pattern of the same or similar to the direction of the first pattern, The first dummy pattern 111 is formed of a plurality of first dummy patterns 111 to reduce the visibility of the sensing unit 110a and electrodes connected in a pattern that is the same as or similar to the direction of the first pattern. It includes a first sensing connecting portion 110b for connecting and one surface of the substrate is preferably included in the first dummy pattern 111 in a position corresponding to the second sensing portion (210a).

In addition, the second sensor unit 200 is formed of an electrode adjacent to the second sensing unit 210a and connected in a pattern of the same or similar direction as that of the second pattern, thereby reducing the visibility of the sensing unit 210a. The plurality of second dummy patterns 211 and the touch screen sensor substrate may be formed of electrodes connected in a pattern of the same or similar direction as that of the pattern, and a connection part (not shown) connecting the dummy patterns 111. It may further include.

In the present embodiment, the first sensor unit 100 and the second sensor unit 200 are bonded to each other by the first sensor unit 110a formed in the first sensor unit 100 and the second sensor unit 200 formed in the second sensor unit 200. Preferably, the sensing unit 210a is bonded in a direction perpendicular to each other. That is, if the first direction of the first sensing unit 110a is the y direction on the coordinate axis, the second direction of the second sensing unit 210a may be joined to each other so as to be the x direction on the coordinate axis.

In this case, a second dummy pattern 211 is formed in the second sensor unit 200 at a position corresponding to (or facing) the first sensing unit 110a and at a position corresponding to the second sensing unit 210a. The first dummy pattern 111 is formed in the first sensor unit 100. The first dummy pattern 111 may be formed at a position of one surface of the substrate corresponding to the position of the second sensing unit 210a. In contrast, the second dummy pattern 211 may be formed of the first sensing unit ( It is preferably formed at the position of the other surface of the base material corresponding to the position of 110a).

Referring to FIG. 8B, the dummy pattern 211 in the Y-axis direction is located on the other side of the substrate at a position corresponding to the direction perpendicular to the position of the sensing unit 100a that detects the touch position in the X-axis direction on the touch screen sensor in this embodiment. The dummy pattern 111 in the X-axis direction is positioned on one surface of the substrate at a position corresponding to the position perpendicular to the position of the sensing unit 200a that detects the touch position in the Y-axis direction. Therefore, the first sensing unit 100a and the second sensing unit 200a are alternately arranged to form the coordinates when the user inputs the touch signal.

In addition, in the present embodiment, the first sensor unit and the second sensor unit may be formed on one side and the other side of the same substrate as described above, or may be formed on different substrates, respectively.

Similarly to the case where the first and second sensor units are formed with respect to the other substrates, similarly to the case where the first and second sensor units are formed on the same substrate, the joining of the first sensor unit and the second sensor unit may be performed by the first and second sensor units formed on the first sensor unit. It is preferable that the second sensing units formed in the are joined in directions perpendicular to each other. That is, when the first direction of the first sensing unit is the y direction on the coordinate axis, the second direction of the second sensing unit is joined to each other so as to be the x direction on the coordinate axis.

In this case, a second dummy pattern is formed in the second sensor unit at the position corresponding to the first sensing unit, and a first dummy pattern is formed in the first sensor unit at the position corresponding to the second sensing unit. The first dummy pattern may be formed at a position of one surface of the substrate corresponding to the position of the second sensing unit, and the second dummy pattern may be formed at a position of the other surface of the substrate corresponding to the position of the first sensing unit. It is preferably formed.

9A to 9C, the first sensor patterns 110 and the second sensor patterns 210 according to the present invention may be disposed on different layers. For example, the first sensor patterns 110 may be disposed in the first sensor unit 100, which is an upper layer, and the second sensor patterns 210 may be disposed in the second sensor unit 200, which is a lower layer.

Here, an adhesive layer (not shown) may be disposed between the first sensor unit 100 and the second sensor unit 220, which will be described below for convenience of description.

In this case, as shown in FIG. 9A,

dummy patterns

111 and 211 may be disposed between the first sensor patterns 110 and the second sensor patterns 210, respectively. These dummy patterns may be empty spaces between the sensor patterns. As the patterns to fill the gap, the sensor does not perform the function of sensing the contact position like the sensor patterns.

For example, the first dummy patterns 111 may be intersected between the first sensor patterns 110, and the first dummy patterns 111 may be disposed in an empty area corresponding to the positions of the second sensor patterns 210. ) May be arranged crosswise.

Similarly, the second dummy patterns 211 may be intersected between the first sensor patterns 110, and the second dummy patterns 211 may be disposed in an empty area corresponding to the positions of the second sensor patterns 210. ) May be arranged crosswise.

In addition, as shown in FIG. 9B, the first dummy patterns 111 may be intersected between the first sensor patterns 110 and the dummy patterns may not be disposed between the second sensor patterns 210.

Of course, as shown in FIG. 9C, the second dummy patterns 211 may be disposed only between the second sensor patterns 210 and the dummy patterns may not be disposed between the first sensor patterns 110.

These dummy patterns may be formed to have the same size as that of the sensor patterns and be formed of the same material. In addition, the dummy patterns may be formed so as not to be connected to each other dummy patterns adjacent to each other as needed, or may be formed to be connected to each other.

Referring to FIG. 10A, a touch pad according to the present invention may include a first sensor unit 100 and a second sensor pattern 210 in which first sensor patterns 110 and first dummy patterns 111 are arranged to cross each other. ) And the second dummy patterns 211 may include the second sensor unit 200 intersected with each other. That is, dummy patterns may be disposed in empty spaces between the first sensor patterns 110 and the second sensor patterns 210, respectively.

In this case, the separation distance between the sensor patterns and the dummy patterns is within 5㎛ ~ 30㎛, particularly preferably 15㎛ or more. For example, the separation distance between the first sensor patterns and the first dummy patterns or the separation distance between the second sensor patterns and the second dummy patterns may be 15 μm.

Referring to FIG. 10B, the touch pad according to the present invention may include a first sensor unit 100 and a second sensor pattern 210 in which the first sensor patterns 110 and the first dummy patterns 111 are arranged to cross each other. ) May include a second sensor unit 200. That is, the dummy patterns are disposed only in the empty spaces between the first sensor patterns 110, and the dummy patterns are not disposed in the empty spaces between the second sensor patterns 210.

Referring to FIG. 10C, in the touch pad according to the present invention, dummy patterns are not disposed in the empty spaces between the first sensor patterns 110, and dummy patterns are disposed only in the empty spaces between the second sensor patterns 210. It may be.

At this time, the present invention is formed by dividing the dummy pattern disposed between the sensor patterns into a plurality of sub-dummy patterns having a predetermined shape, the division method is, for example, 1) have the same shape as the entire outer shape and equal 2) A method of dividing to have an area, 2) A method of dividing into a shape that is different from the overall outline but having an equal area, and 3) Dividing according to a virtual dividing pattern, but pre-set between the lines in the virtual dividing pattern and the mesh in the dummy pattern. 4) a method of dividing the mesh in a dummy pattern at regular or irregular breaks and the like.

When the sensor pattern and the dummy pattern are partially shorted by dividing the dummy pattern, current flows only from the sensor pattern to the shorted sub-dummy pattern among the corresponding dummy patterns, thereby preventing the current from flowing into the entire dummy pattern to ensure the stability of the function. And it can improve the sensor operation by minimizing the dielectric constant flowing into the dummy pattern from the sensor pattern.

As shown in FIGS. 11A to 11B, the present invention is formed by dividing each of the dummy patterns disposed between the sensor patterns into a plurality of sub-dummy patterns having a predetermined shape, and a part of the pattern having the continuity of the dummy patterns. By dividing, it can be divided to have the same shape as the entire outer shape and an even area.

In FIG. 11A, a broken line of the dummy pattern 111 and a mesh in the dummy pattern may be formed in parallel.

In FIG. 11B, the broken line of the dummy pattern 111 and the mesh in the dummy pattern may be formed to have a predetermined angle so as not to be parallel.

In other words, the dummy pattern according to the present invention is divided into a plurality of pieces, and evenly divided so as to have the same shape as the entire outline, regardless of the direction of the mesh in the dummy pattern. For example, the rectangular dummy pattern 111 is divided into rectangular

sub dummy patterns

111a, 111b, 111c, 111d, 111e, 111f, 111g, 111h, and 111i.

As shown in FIG. 11B, a problem in which a moiré may be generated may be suppressed by forming a line at which the dummy pattern is broken and a mesh in the dummy pattern having a predetermined angle.

Since the dummy pattern is partially broken and divided into a plurality of sub dummy patterns, edges of each of the plurality of divided sub dummy patterns are opened.

Part of the pattern broken at the boundary of the sub-dummy pattern is to be electrically insulated from each other between the sub-dummy patterns, and also broken, and formed by opening the edge of the pattern of the sub-dummy pattern means that the edge is not connected to the edge electrode. do.

Opening the edge of the sub-dummy pattern is connected to the edge electrode to solve the problem of continuity disappeared and disconnected. In fact, the sub-dummy pattern allows the user to recognize the electrode as continuous when viewed at a small interval.

At this time, the outer shape of the dummy pattern can be clearly seen when there is no dummy connection as in the present embodiment, but when the dummy connection is not, the outer shape of the dummy pattern should be defined by appropriately dividing the partition between the dummy connection and the dummy pattern. do.

As shown in FIGS. 12A to 12B, the present invention is formed by dividing each of the dummy patterns disposed between the sensor patterns into a plurality of sub dummy patterns having a predetermined shape, and a part of the pattern having the continuity of the dummy patterns. You can break the shape so that it has a shape that is different from the shape of the entire outline but has an even area.

12A illustrates a dummy pattern 111 having a hexagonal shape in an undivided state.

In FIG. 12B, the sub dummy patterns 111 having a hexagonal shape are divided to form sub dummy patterns having a shape different from that of the entire outline, but the area of each dummy pattern is the same.

For example, if the area of the dummy pattern 111 having a hexagonal shape as shown in FIG. 12A is 90, nine

sub-dummy patterns

111a, 111b, 111c, 111d, 111e, and 111f having different shapes from the hexagonal shape as shown in FIG. , 111g, 111h, 111i) each has an area of 10.

As described above with reference to FIG. 12B, since the dummy pattern is formed to have a predetermined angle between the broken line and the mesh in the dummy pattern, the problem of mutual moiré may be suppressed.

As shown in FIGS. 13A to 13B, the present invention is formed by dividing each of the dummy patterns disposed between the sensor patterns into a plurality of sub-dummy patterns having a predetermined shape, and a part of the pattern having the continuity of the dummy patterns. You can break it to break the shape so that it has a shape different from the shape of the entire outline and has a different area.

In FIG. 13A, the lines in the virtual split pattern 130 and the meshes in the dummy pattern 111 are split in parallel to each other.

In FIG. 13B, the lines in the virtual dividing pattern 130 and the meshes in the dummy pattern 111 are not parallel to each other.

In this case, the present invention may be divided using a virtual division pattern, but may be divided to have a predetermined angle between the lines in the virtual division pattern and the mesh in the dummy pattern or not parallel to each other. At least one sub dummy pattern among the divided sub dummy patterns is divided to have a shape different from the shape of the entire outline and a different area.

As described above with reference to FIG. 13B, since the dummy pattern is formed to have a predetermined angle between the line in which the dummy pattern is broken and the mesh in the dummy pattern, it is possible to suppress a problem in which mutual moiré may occur.

In addition, by dividing the mesh in the dummy pattern not parallel to each other to form a sub-dummy pattern, it is possible to prevent moiré and more effectively improve visibility.

Herein, the present invention describes a principle of dividing a dummy pattern using a virtual division pattern, and the virtual division pattern may be applied to all of FIGS. 11A to 12B.

As shown in FIGS. 14A to 14B, the present invention is formed by dividing each of the dummy patterns disposed between the sensor patterns into a plurality of preset shapes, and cutting off a part of the pattern having the continuity of the dummy patterns to form a dummy pattern. The mesh may be broken and divided regularly or irregularly within a predetermined range.

Thus, the length of the regular or irregularly formed sub-dummy patterns is preferably 0.3 mm to 1.5 mm.

In FIG. 14A, the mesh in the dummy pattern 111 may be regularly broken and divided within a preset range, and the length of the broken lines may be the same.

For example, the length Lx of the broken line in the transverse direction and the length Ly of the broken line in the longitudinal direction are the same.

In FIG. 14B, the mesh in the dummy pattern 111 may be broken and divided irregularly within a preset range. The broken lines may have different lengths.

Of course, the length of the broken lines may be formed differently within a preset range.

For example, the lengths Lx1 and Lx2 or Ly1 and Ly2 of the lines determined in the horizontal direction are randomly determined to be different from each other.

As described above with reference to FIGS. 11A to 14B, the dummy pattern is divided into a plurality of sub dummy patterns, and each divided sub dummy pattern is preferably formed of five or more unit meshes, which is more effective for improving visibility. Because it is.

In this case, in the present invention, a dummy pattern is disposed between the sensor patterns, but is disposed between the sensor pattern and the dummy pattern, and is spaced apart by a predetermined distance along a boundary between the sensor pattern and the dummy pattern, and the auxiliary dummy pattern is physically separated from the dummy pattern. Can be further formed. In addition, the auxiliary dummy pattern may be divided and formed as necessary.

As shown in FIG. 15, when the dummy connection part is formed between the dummy patterns, the dummy pattern 111 is disposed between the sensor patterns 110, and the sensor pattern 110 and the dummy pattern 111 are disposed. The auxiliary dummy pattern 112 may be further formed between the layers. In addition, a plurality of auxiliary dummy patterns may be formed between the sensor pattern and the dummy pattern as necessary.

Here, in the exemplary embodiment of the present invention, the dummy pattern and the dummy connector are not distinguished, but are described only as the dummy pattern, but the dummy pattern includes the dummy connector.

In this case, the auxiliary dummy pattern 112 may be formed along the interface between the sensor pattern 110 and the dummy pattern 111, and may be spaced apart from each of the sensor pattern 110 and the dummy pattern 111 by a predetermined distance. . In other words, the auxiliary dummy pattern 112 may be formed to be spaced apart from the sensor pattern 110 on one side by a predetermined distance and also to a distance away from the dummy pattern 111 on the other side.

In addition, the auxiliary dummy pattern 112 may be formed such that the separation distance from the sensor pattern 110 and the separation distance from the dummy pattern 111 are the same or different from each other.

Since the auxiliary dummy pattern 112 formed as described above is spaced apart by a predetermined distance along the outline of the sensor pattern 110, the auxiliary dummy pattern 112 has the same shape as the outline of the corresponding sensor pattern 110.

The auxiliary dummy pattern 112 may be formed in a band shape along an interface between the sensor pattern 110 and the dummy pattern 111. Since the auxiliary dummy pattern 112 is formed along the interface between the sensor pattern 110 and the dummy pattern 111, one of the auxiliary dummy patterns 112 may be formed on the same line in the same direction, for example, the same x coordinate in the x-axis direction or the same y coordinate in the y-axis direction. The auxiliary dummy pattern 112 may be formed.

Of course, the auxiliary dummy pattern 112 positioned on the same line in the same direction may be formed as a pattern having a continuity, but is not necessarily limited thereto and may be divided as necessary. That is, a part of the pattern having continuity may be cut and divided into a plurality of auxiliary dummy patterns 112.

In addition, the dummy pattern 111 may be formed by regularly or irregularly disconnecting a mesh constituting the dummy pattern that is divided or formed into a plurality of preset shapes.

Edges of each of the dummy pattern 111 and the auxiliary dummy pattern 112 are opened to be formed.

As such, part of the pattern broken at the boundary between each of the dummy pattern 111 and the auxiliary dummy pattern 112 is to be electrically insulated from each other between the dummy pattern 111 and the auxiliary dummy pattern 112 and is also broken. The open edges of the patterns of each of the 111 and auxiliary dummy patterns 112 mean that the edges are not connected to the edge electrodes.

As shown in FIG. 16, the auxiliary dummy pattern is formed along an interface between the sensor pattern 110 and the dummy pattern 111, and may be formed to be spaced apart from the sensor pattern 110 on one side by a predetermined distance d1. Here, the distance d1 from the sensor pattern 110 may be 30 μm or less.

On the other hand, the auxiliary dummy pattern 112 may be formed to be spaced apart from the dummy pattern 111 on the other side by a predetermined distance d2, where the distance d2 from the dummy pattern 111 may be 20 μm or less.

As described above, the auxiliary dummy pattern 112 may be formed to have the same separation distance from the sensor pattern 110 and the separation distance from the dummy pattern 111 or to have different separation distances from each other.

In addition, the auxiliary dummy pattern 112 is formed in the form of a band between the sensor pattern 110 and the dummy pattern 111, the thickness w may be a constant size. Here, the thickness w may be 100 μm or less.

As shown in FIG. 17, when the dummy connection portion between the dummy patterns is formed, the dummy pattern 111 is disposed between the sensor patterns 110, and the sensor pattern 110 and the dummy pattern 111 are disposed. The auxiliary dummy pattern 112 may be further formed between the layers.

In the present invention, the dummy pattern 111a and the dummy connector 111b may be physically separated to be spaced apart by a predetermined distance.

The auxiliary dummy pattern 112 may be formed in a band shape along an interface between the sensor pattern 110 and the dummy pattern 111. Since the auxiliary dummy pattern 112 is formed along the interface between the sensor pattern 110 and the dummy pattern 111, one of the auxiliary dummy patterns 112 may be formed on the same line in the same direction, for example, the same x coordinate in the x-axis direction or the same y coordinate in the y-axis direction. An auxiliary dummy pattern of may be formed.

Edges of each of the dummy pattern 111a and the auxiliary dummy pattern 112 are opened to be formed. Of course, the edge of the dummy connection portion 111b separated from the dummy pattern 111a is also opened.

As shown in FIG. 18A, when the dummy connection between the dummy patterns is not formed, the dummy pattern 111 is disposed between the sensor patterns 110, and the sensor pattern 110 and the dummy pattern 111 are disposed. The auxiliary dummy pattern 112 may be further formed between the layers.

In this case, when the dummy connection part is not formed, an interval between the sensor patterns 110 may be smaller than an interval between the sensor patterns described with reference to FIGS. 15 and 17.

As shown in FIG. 18B, when the dummy connection between the dummy patterns is not formed, the dummy pattern 111 is disposed between the sensor patterns 110, and the sensor pattern 110 and the dummy pattern 111 are disposed. The auxiliary dummy pattern 112 may be further formed between the layers.

Since the auxiliary dummy pattern 112 formed as described above is spaced apart by a predetermined distance along the outline of the dummy pattern 110, the auxiliary dummy pattern 112 has the same shape as the outline of the dummy pattern 110.

The auxiliary dummy pattern 112 may be formed in a band shape along the outline of the dummy pattern 111. Since the auxiliary dummy pattern 112 is formed along the outline of the dummy pattern 111, one auxiliary dummy pattern 112 may be formed to surround the outer dummy pattern 111. That is, each auxiliary dummy pattern 112 is physically separated from each other.

Of course, the auxiliary dummy pattern 112 surrounding the dummy pattern may be formed as a continuity pattern, but is not necessarily limited thereto, and may be divided as necessary. That is, a part of the pattern having continuity may be cut and divided into a plurality of auxiliary dummy patterns 112.

As described above, the present invention includes a first sensor unit including first sensor patterns for detecting an X coordinate and a second sensor unit including second sensor patterns for detecting a Y coordinate such that the first sensor unit and the second sensor unit are configured. Although an example of applying various types of dummy patterns to the touch screen sensors formed by being bonded to each other is illustrated, the present invention is not limited thereto, and the first sensor patterns for detecting the X coordinate and the second sensor patterns for detecting the Y coordinate are single. It is also applicable to touch screen sensors configured to be arranged together on the surface of the substrate.

Of course, the case in which both the first sensor pattern and the second sensor pattern are formed on the surface of a single substrate is described as an example, but the present invention is not limited thereto, and the first sensor pattern and the second sensor pattern may be formed in various forms on the same substrate. It is obvious that it can be formed.

For example, the touch screen sensor configured to arrange the first sensor patterns formed in the first direction and the second sensor patterns formed in the second direction on both sides of the surface of the single substrate may also have various types of dummy according to an embodiment of the present invention. The pattern can be applied.

As shown in FIG. 19, the touch screen sensor according to the present invention may include one sensor unit 100, wherein the sensor unit 100 includes first sensor patterns 110 for detecting an X coordinate. ) And second sensor patterns 210 for sensing the Y coordinate may be arranged on one substrate.

In this case, the first sensor patterns may be referred to as sensing electrodes for sensing a sensing signal, and the second sensor patterns may be assumed to be driving electrodes for sensing a driving signal by being electrically separated from the first sensor patterns.

Each of the plurality of sensing electrodes may be disposed in a shape of a sensing bar extending along a first direction, and each of the plurality of driving electrodes may be disposed in a second direction crossing the first direction. Here, the first direction indicates the horizontal direction or the X-axis direction and the second direction indicates the vertical direction or the Y-axis direction.

For example, the second sensor patterns 210 for detecting the Y coordinate formed in the horizontal direction are spaced apart at regular intervals in the vertical direction, and adjacently adjacent to the second sensor patterns 210 to detect the X coordinate. The plurality of first sensor patterns 110 may be spaced apart at regular intervals in the horizontal direction.

That is, the plurality of first sensor patterns 110 are arranged side by side in each of the second sensor patterns 210.

A sensing region including one sensing electrode and a plurality of driving electrodes disposed as described above may be formed. The sensing region according to the present invention is not limited to an inclusion relationship between one sensing electrode and a plurality of driving electrodes, but may be implemented in various forms.

The wiring electrode 400 may be connected to each of the first sensor patterns 110 and the second sensor patterns 210 disposed as described above. Here, the wiring electrode 400 serves to transfer a touch signal sensed from the first sensor patterns 110 and the second sensor patterns 210 to an external driving circuit (not shown).

In addition, a dummy pattern 111 may be formed between the first sensor patterns 110 or the second sensor patterns 210 and the wiring electrode. In addition, as wiring electrodes are connected to each of the first sensor patterns 110, a space may be formed between the wiring electrodes, and a dummy pattern may be formed in the space. In addition, the size of the dummy pattern may vary depending on the size of the space. The dummy pattern 111 may be formed in a pattern having a shape similar to that of the first sensor patterns 110 or the second sensor patterns 210 or a pattern having the same shape.

As such, the plurality of sensing electrodes and the plurality of sensing electrodes may be disposed on the same surface of the substrate to form a single layer structure.

At this time, when forming the first sensor pattern and the second sensor pattern on a single substrate is composed of a metal mesh, this is because the ITO can not be bent, it is impossible to use in a flexible substrate, while it is impossible to use in a medium-large area, metal Not only are meshes available for flexible and medium to large areas, they are also faster to respond to than ITO.

In addition, when the first sensor pattern and the second sensor pattern are formed on a single substrate, a dummy pattern is formed. This is because a moiré occurs when the metal mesh is formed, thereby forming a dummy pattern in an empty space. To prevent moiré.

In addition, since a phenomenon in which a pattern is visually recognized due to a difference in pattern density occurs on a substrate, a dummy pattern is formed in an empty space to suppress a phenomenon in which the pattern is visually recognized due to an uneven pattern.

As shown in FIG. 20, when the area A of FIG. 19 is enlarged and examined, the

sensor patterns

110 and 210, the dummy pattern 111, and the wiring electrode 400 are formed in one sensor unit and have a predetermined direction. Can be formed. The pattern in a predetermined direction is a pattern of a mesh shape in which lines formed in a constant direction cross each other in a continuous pattern.

Edges of each of the

sensor patterns

110 and 210, the dummy pattern 111, and the wiring electrode 400 may be formed to be open. The broken part of the pattern at the boundary of each of the

sensor patterns

110 and 210, the dummy pattern 111, and the wiring electrode 400 is to be electrically insulated from each other, and the broken part is formed by opening the edge of the pattern. Means that it is not connected to the edge electrode.

The

sensor patterns

110 and 210, the dummy pattern 111, and the wiring electrode 400 may be formed using an embossed shape or an intaglio shape. The

sensor patterns

110 and 210 and the wiring electrode 400 may be electrically connected to each other. The dummy pattern 111 is formed of an active electrode and is formed of an electrically insulative electrode.

As shown in FIG. 21, when the area B of FIG. 19 is enlarged and examined, a dummy pattern 111 is formed between the

sensor patterns

110 and 210 and the wiring electrode 400, but the dummy pattern 111 is a sensor pattern. The size may vary depending on the distance between the 110 and 210 and the wiring electrode 400.

For example, the width of the dummy pattern 111a2 may be wider than that of the dummy pattern 111a1. As the gap between the

sensor patterns

110 and 210 and the wiring electrode 400 increases, the width of the dummy pattern 111 may be increased. In this case, the dummy pattern may be divided into two or more sub dummy patterns. Each of the dummy patterns may be divided into different numbers of sub dummy patterns. In particular, the number of sub dummy patterns may vary depending on the size of the dummy pattern.

Herein, the case in which the dummy pattern 111 according to the present invention is formed between the

sensor patterns

110 and 210 and the wiring electrode 400 is described as an example. However, the present invention is not limited thereto, and the dummy pattern 111 according to the present invention is not limited thereto. It can be formed at various positions, such as between electrodes. The dummy pattern 111 formed as described above is formed by dividing into a plurality of sub-dummy patterns having a predetermined shape.

For example, 1) as shown in FIGS. 11A to 11B, a part of the pattern having the continuity of the dummy pattern may be cut and divided to have the same shape as the shape of the entire outline and an equal area.

In this case, as shown in FIG. 11A, the broken line of the dummy pattern and the mesh in the dummy pattern may be formed in parallel, or as shown in FIG. 11B, the line of the dummy pattern and the broken line and the mesh in the dummy pattern may not be parallel, but may have a predetermined angle.

As another example, 2) as shown in FIGS. 12A to 12B, a part of the pattern having the continuity of the dummy pattern may be cut off to have a shape different from the shape of the entire outline, and may be divided to have an even area.

As another example, 3) as shown in FIGS. 13A to 13B, a part of the pattern having the continuity of the dummy pattern may be cut and divided to have a shape different from the shape of the entire outline and a different area.

In this case, as shown in FIG. 13A, the lines in the virtual divided pattern and the mesh in the dummy pattern may be divided in parallel to each other, or as shown in FIG. 13B, the lines in the virtual divided pattern and the mesh in the dummy pattern may not be parallel to each other.

As another example, as shown in FIGS. 14A to 14B, a part of the pattern having the continuity of the dummy pattern may be cut to break and divide the mesh in the dummy pattern regularly or regularly in a predetermined range.

At this time, the mesh in the dummy pattern is regularly broken within the preset range as shown in FIG. 14A, and the lengths of the broken lines are the same, or as shown in FIG. 14B, the mesh in the dummy pattern is irregularly determined within the preset range and the broken The lengths of the lines may be formed differently.

As another example, when the dummy connection part is formed between the dummy patterns as illustrated in FIG. 15, a dummy pattern may be disposed between the sensor patterns, and an auxiliary dummy pattern may be additionally formed between the sensor pattern and the dummy pattern.

As another example, when a dummy connection part between dummy patterns is formed as shown in FIG. 17, an auxiliary dummy pattern is additionally formed between the sensor pattern and the dummy pattern, but the dummy pattern and the dummy connection part are physically separated to be spaced apart by a predetermined distance. Can be formed.

As another example, when the dummy connection portion between the dummy patterns is not formed, as shown in FIGS. 18A to 18B, an auxiliary dummy pattern is additionally formed between the sensor pattern and the dummy pattern. It may be formed to be narrower than the gap between the sensor patterns described in FIG. 17 or may surround the outer edge of the dummy pattern as shown in FIG. 18B.

In this case, each of the dummy patterns and the auxiliary dummy patterns may be divided into a plurality of dummy patterns.

In addition, the auxiliary dummy pattern may be formed not only between the sensor pattern and the dummy pattern but also between the sensor pattern and the sensor pattern or between the wiring electrode and the wiring electrode according to the shape or position of the dummy pattern.

The embodiments described above are just an example, and various modifications and changes may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

Claims

A first sensor unit in which first dummy patterns are arranged between the first sensor patterns formed in a first direction and the first sensor patterns; And

A second sensor part overlapping the first sensor part and having second dummy patterns arranged between the second sensor patterns formed in a second direction crossing the first direction and the second sensor patterns;

A touch using a dummy pattern for a capacitive touch screen, wherein each of the first dummy patterns and the second dummy patterns comprises at least two sub dummy patterns physically separated from each other; Structure of the pad.
The method of claim 1,

The first dummy patterns are disposed in an area corresponding to the positions of the second sensor patterns,

And the second dummy patterns are disposed in an area corresponding to the positions of the first sensor patterns.
The method of claim 1,

Each of the first dummy patterns and the second dummy patterns may include at least two sub dummy patterns, and the dummy pattern for the capacitive touch screen may include different sub dummy patterns. The structure of the touchpad using.
The method of claim 1,

The boundary line of each of the separated at least two sub-dummy patterns is formed parallel to each other in the direction of the mesh constituting the dummy pattern structure of the touch pad using a dummy pattern for a capacitive touch screen.
The method of claim 1,

The boundary of each of the separated at least two sub-dummy patterns is formed so as not to be parallel to the direction of the mesh constituting the dummy pattern, the structure of the touch pad using a dummy pattern for a capacitive touch screen .
The method of claim 1,

Each of the first dummy patterns and the second dummy patterns may include two or more sub dummy patterns having a preset shape.

Each of the at least two sub-dummy patterns has the same shape as the entire outer shape of the first dummy pattern or the second dummy pattern and is formed to have an equal area. Touch using a dummy pattern for a capacitive touch screen Structure of the pad.
The method of claim 1,

Each of the first dummy patterns and the second dummy patterns may include two or more sub dummy patterns having a preset shape.

Each of the at least two sub-dummy patterns may have a shape that is different from the shape of the entire outline of the first dummy pattern or the second dummy pattern, and may have a uniform area, wherein the dummy pattern for the capacitive touch screen is used. The structure of the touch pad.
The method of claim 1,

Each of the first dummy patterns and the second dummy patterns may include two or more sub dummy patterns having a preset shape.

Each of the two or more sub-dummy patterns has a shape different from the overall outer shape of the first dummy pattern or the second dummy pattern and has a different area, using a dummy pattern for a capacitive touch screen. The structure of the touch pad.
The method of claim 1,

Each of the first dummy patterns and the second dummy patterns may include at least two sub dummy patterns that are physically separated by regularly or irregularly disconnecting a mesh therein. The structure of the touchpad using dummy patterns for.
The method of claim 9,

Each of the first dummy patterns and the second dummy patterns may be divided and divided into a regular mesh within a preset range, and the capacitive touch screen may have the same length of the broken lines. The structure of the touch pad using a dummy pattern for the purpose.
The method of claim 9,

Each of the first dummy patterns and the second dummy patterns may be divided into irregularly broken meshes within a predetermined range, and the lengths of the broken lines are different from each other. The structure of the touch pad using a dummy pattern for the purpose.
The method of claim 1,

A first auxiliary dummy pattern disposed between the first sensor pattern and the first dummy pattern and spaced apart along a boundary between the first sensor pattern and the first dummy pattern to be physically separated from the first dummy pattern; And

A second auxiliary dummy pattern disposed between the second sensor pattern and the second dummy pattern to be spaced apart along the interface between the second sensor pattern and the second dummy pattern so as to be physically separated from the second dummy pattern;

Structure of the touch pad using a dummy pattern for a capacitive touch screen, characterized in that it further comprises.
A first sensor unit in which first dummy patterns and a first auxiliary dummy pattern are arranged between the first sensor patterns formed in a first direction and the first sensor patterns; And

A second dummy pattern and a second auxiliary dummy pattern arranged between the second sensor patterns and the second sensor patterns overlapping the first sensor unit and formed in a second direction crossing the first direction; 2 sensor unit;

The first auxiliary dummy pattern may be disposed between the first sensor patterns and the first dummy patterns, and the first auxiliary dummy pattern may be an interface between the first sensor patterns and the first dummy patterns. Spaced apart along the shape to be physically separated,

The second auxiliary dummy pattern is positioned between the second sensor patterns and the second dummy patterns, and the second auxiliary dummy pattern is spaced along an interface between the second sensor patterns and the second dummy patterns. Structure of a touch pad using a dummy pattern for a capacitive touch screen, characterized in that it is formed to be physically separated.
The method of claim 14,

Each of the first auxiliary dummy pattern and the second auxiliary dummy pattern is formed to be spaced apart along an outline of the corresponding first sensor patterns and the second sensor patterns.

The structure of the touch pad using the dummy pattern for the capacitive touch screen, characterized in that formed to have the same shape as the outline of the first sensor pattern and the second sensor pattern.
The method of claim 13,

Each of the first auxiliary dummy pattern and the second auxiliary dummy pattern is formed to be physically separated from the first dummy patterns and the second dummy patterns.

And each of the first dummy patterns and the second dummy patterns is coupled to a dummy connector to form a dummy pad for a capacitive touch screen.
The method of claim 13,

Each of the first auxiliary dummy pattern and the second auxiliary dummy pattern is formed to be physically separated from the first dummy patterns and the second dummy patterns.

And each of the first dummy patterns and the second dummy patterns is formed to be physically separated from the dummy connection part.
The method of claim 13,

Each of the first auxiliary dummy pattern and the second auxiliary dummy pattern is formed to be physically separated from the first dummy patterns and the second dummy patterns.

The structure of the touch pad using the dummy pattern for the capacitive touch screen, characterized in that it is formed to surround the first dummy patterns and the second dummy patterns.
A plurality of sensor patterns formed on the substrate to sense a touch signal;

A plurality of wiring electrodes connected to each of the plurality of sensor patterns to transfer the touch signal; And

A plurality of dummy patterns formed in the space between the plurality of sensor patterns or the plurality of wiring electrodes;

And a dummy pattern for a capacitive touch screen, wherein each of the plurality of dummy patterns comprises two or more sub-dummy patterns physically separated from each other.
The method of claim 18,

The plurality of sensor patterns,

A plurality of first sensor patterns disposed on one surface of the substrate in a first direction; And

A plurality of second sensor patterns disposed in a second direction crossing the first direction on the same surface on which the first sensor patterns are disposed;

The dummy patterns may include dummy patterns for a capacitive touch screen, wherein the dummy patterns are arranged in a space formed by connecting the wiring electrodes to first sensor patterns disposed between the second sensor patterns. Structure of touch pad to use.
The method of claim 18,

The plurality of sensor patterns,

A plurality of first sensor patterns disposed on one surface of the substrate in a first direction; And

A plurality of second sensor patterns disposed on the other surface of the substrate in a second direction crossing the first direction;

Structure of the touch pad using a dummy pattern for a capacitive touch screen, characterized in that it comprises a.
The method of claim 18,

The plurality of dummy patterns may have different sizes depending on the size of the space formed between the plurality of sensor patterns or the plurality of wiring electrodes, and the touch using the dummy pattern for the capacitive touch screen. Structure of the pad.
The method of claim 18,

Each of the plurality of dummy patterns includes at least two sub-dummy patterns, and a structure of a touch pad using a dummy pattern for a capacitive touch screen, wherein the dummy patterns have different numbers of sub-dummy patterns. .
The method of claim 18,

The boundary line of each of the separated at least two sub-dummy patterns is formed parallel to each other in the direction of the mesh constituting the dummy pattern structure of the touch pad using a dummy pattern for a capacitive touch screen.
The method of claim 18,

The boundary of each of the separated at least two sub-dummy patterns is formed so as not to be parallel to the direction of the mesh constituting the dummy pattern, the structure of the touch pad using a dummy pattern for a capacitive touch screen .
The method of claim 18,

Each of the plurality of dummy patterns is formed of two or more sub dummy patterns having a preset shape.

Each of the at least two sub-dummy patterns has a shape different from the overall outer shape of the corresponding dummy pattern and is formed to have a different area, the structure of the touch pad using the dummy pattern for the capacitive touch screen.
The method of claim 18,

Each of the plurality of dummy patterns includes at least two sub-dummy patterns that are physically separated by regularly or irregularly disconnecting a mesh therein, and using a dummy pattern for a capacitive touch screen. Structure of the pad.
The method of claim 26,

Each of the plurality of dummy patterns is divided into irregularly broken meshes within a predetermined range, but the length of the broken lines is different from each other, and the touch pad uses a dummy pattern for a capacitive touch screen. Structure.
A plurality of sensor patterns formed on the substrate to sense a touch signal;

A plurality of wiring electrodes connected to each of the plurality of sensor patterns to transfer the touch signal;

A plurality of dummy patterns formed in the space between the plurality of sensor patterns or the plurality of wiring electrodes; And

A plurality of auxiliary dummy patterns formed between the plurality of sensor patterns and the plurality of dummy patterns or between the plurality of wiring electrodes and the plurality of dummy patterns;

Structure of the touch pad using a dummy pattern for a capacitive touch screen, characterized in that it comprises a.
The method of claim 28,

The plurality of dummy patterns may have different sizes depending on the size of the space formed between the plurality of sensor patterns or the plurality of wiring electrodes, and the touch using the dummy pattern for the capacitive touch screen. Structure of the pad.
The method of claim 28,

And each of the plurality of dummy patterns and the plurality of auxiliary dummy patterns is divided into a plurality of dummy patterns and a dummy pattern for a capacitive touch screen.