KR101513669B1 - Touch Screen Panel for Preventing Moire - Google Patents

Abstract

The present invention relates to a touch screen panel for preventing moirea and applies standards designed for cross domain and regions for conductivity line to certain scopes rather than outcomes of experiments about line width and cross angles for mesh-shaped conductivity lines on transparent substrates. By applying them to certain scopes using above-mentioned standards, moire effects caused by repetitive patterns of mesh-shaped conductivity lines can be prevented. By utilizing separate design standards for black matrices patterns on a separate video signal device and design standards for conductivity lines and crossed domains, conductive line width, and cross angles are set. Consequently, a touch screen panel that prevents moire effects caused by conductive lines and black matrices patterns can be provided.

Description

[0001] The present invention relates to a touch screen panel for preventing moire,

The present invention relates to a touch screen panel for preventing moire. More particularly, the present invention relates not only to line widths and crossing angles of a mesh-type conductive line formed on a transparent substrate, but also to a method of designating a cross-sectional area of the conductive line by using a design criterion centering on the cross- It is possible to effectively prevent the moire phenomenon caused by the repeating pattern of the conductive line having the mesh form and to use the separate design standard for the intersection area of the black matrix pattern of the separate image display device and the conductive line To a moiré phenomenon occurring in a conductive line itself, as well as a moire phenomenon occurring in relation to a black matrix pattern, by effectively setting a line width and a crossing angle of a conductive line.

The touch screen panel is an input device that allows a user to input a command by selecting an instruction displayed on a screen of a video display device as a human hand or an object. Recently, terminals and terminals of various communication devices have been reduced in weight and thickness Such a touch screen panel is widely used so that the display area can be broadened.

The touch screen panel is provided on the front side of the image display device and converts a contact position directly touching a human hand or an object into an electrical signal, so that the instruction content selected at the contact position is received as an input signal. Such a touch screen panel can be replaced with a separate input device connected to a video display device such as a keyboard and a mouse.

In accordance with this tendency, portable electronic devices such as mobile communication terminals, portable media players (PMPs), personal digital assistants (PDAs), navigation devices, and MP3 players, Touch screen panels have also been widely applied.

The touch screen panel is configured such that a sensing electrode is formed on a transparent substrate of a transparent material so as to sense a touch operation. The sensing electrode is formed in a sensing pattern shape for recognizing a touch input signal of a user. Such a sensing pattern is transparently realized in order to secure transparency and visibility of light generated from the display panel and is formed of a transparent electrode material such as indium tin oxide (ITO).

At this time, the transparent electrode material such as ITO for forming the sensing electrode has a problem that the indium used as the raw material is expensive as rare earth metal, and thus the price competitiveness is deteriorated, and the reserves are also insufficient and the supply and demand is not smooth.

In addition, the sensing electrode using the ITO material has a problem that the manufacturing time and cost are increased due to a complicated and difficult working process. In addition, in recent years, a finer and more complex sensing electrode is required according to the tendency of high integration. However, there is a limitation in solving the problem using a transparent electrode material such as ITO.

In order to solve these problems, various researches on transparent electrode method to replace ITO have been carried out. However, research results on a new method applicable to touch screen panel and sensing electrode are still insignificant.

On the other hand, recently, a metal mesh method has been studied as a means for replacing a transparent electrode such as ITO. In this case, a moire phenomenon occurs due to repetition of the same pattern in the structure.

Korean Patent No. 10-1447927

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art, and it is an object of the present invention to provide a method of manufacturing a transparent conductive line, which does not merely apply experimental results on line widths and crossing angles of a mesh- There is provided a moire preventing touch screen panel capable of effectively preventing a moire phenomenon caused by a repetitive pattern of a conductive line having a mesh shape by applying a design range based on the area and shape of the cross area to a specific range will be.

Another object of the present invention is to set line widths and crossing angles of the conductive lines using design criteria centering on the intersecting area area of the conductive lines so that they are not set through theoretical values or experimental results that are appropriate for the particular conditions And it is not necessary to produce various samples and it is not necessary to derive separate experimental results according to the change of conditions, and it is possible to provide a moire preventing touch screen panel which can be produced so that the anti-moiré performance can be exerted conveniently under various conditions.

It is a further object of the present invention to provide a method of manufacturing a display device in which a line width and a crossing angle of a conductive line are set using a separate design criterion for a black matrix pattern and a crossing area of a conductive line of a separate video display device, In addition, it is an object of the present invention to provide a moire preventing touch screen panel which can effectively prevent moire phenomenon occurring in relation to a black matrix pattern.

The present invention relates to a transparent substrate, And a sensing electrode formed on the transparent substrate so as to sense a touch operation, wherein the sensing electrode includes a plurality of first conductive lines parallel to each other and a plurality of parallel conductive lines intersecting the first conductive line, The first conductive line and the second conductive line are formed to have the same line width so that the mutually intersecting regions form a rhombic shape, and the line widths of the first conductive line and the second conductive line And the crossing angle is set considering the length of the first diagonal line or the length of the second diagonal line for the rhombus region, which is a mutual intersection region, in consideration of the length of the first diagonal line.

At this time, the linewidth and the intersection angle of the first conductive line and the second conductive line may be set so that the length of the first diagonal line is less than a preset reference value.

The line width and the intersection angle of the first conductive line and the second conductive line are set such that the length of the first diagonal line is larger than a predetermined reference value and the length of the first diagonal line And the distance between the two points where the extension line of the first conductive line and the outer boundary surface of the first and second conductive lines intersect is less than or equal to the reference value.

In addition, the reference value may be applied as a critical line width of a conductive line that is not visually recognized through a human eye at a specific separation distance.

At this time, the reference value may be applied to 5 m.

In addition, the first conductive line and the second conductive line may be formed on the transparent substrate through a nanoimprint process.

The touch screen panel is coupled to a separate image display device having a black matrix pattern having a line width larger than that of the first and second conductive lines. The first and second conductive lines are connected to the black matrix pattern Wherein a line width of the first and second conductive lines and a crossing angle at which the first and second conductive lines intersect the black matrix pattern are disposed so as to intersect the first or second conductive line And a length of a short side constituting an outer boundary surface of the black matrix pattern in a parallelogram region which is an intersecting region of the black matrix pattern may be set to a predetermined reference value or less.

At this time, the line width of the black matrix pattern formed on the image display device may be larger than the reference value.

In addition, the reference value may be applied to 5 m.

According to the present invention, the line width and the intersection angle of the mesh-shaped conductive lines formed on the transparent substrate are not simply applied as experimental results, but the design criteria based on the area and shape of the cross- It is effective to effectively prevent a moire phenomenon caused by a repetitive pattern of a conductive line having a mesh shape.

In addition, since line widths and crossing angles of the conductive lines are set by using the design reference of the form centered on the intersecting area area of the conductive lines, it is not set through the theoretical values or the experimental results suitable for the specific conditions, It is not necessary to produce an experimental result according to a change in conditions, and it is possible to exert the moire preventing effect conveniently in various conditions.

In addition, since the line width and the intersection angle of the conductive line are set by using a separate design criterion for the intersection of the black matrix pattern and the conductive line of the separate image display device, not only the moire phenomenon occurring in the conductive line itself, It is possible to effectively prevent the moiré phenomenon occurring in the relationship with < RTI ID = 0.0 >

FIG. 1 is a view for explaining a schematic structure of a moire preventing touch screen panel according to an embodiment of the present invention; FIG.
FIGS. 2 and 3 are views for explaining a moire phenomenon formed by a metal mesh structure,
4 and 5 are views for explaining moire prevention design criteria of a moire preventing touch screen panel according to an embodiment of the present invention;
6 is a schematic view illustrating an overlapping structure of a black matrix pattern of a moire preventing touch screen panel and a separate image display device according to an embodiment of the present invention.
FIG. 7 is a view for explaining a Moire prevention design criterion that can be generated in relation to a black matrix pattern by a Moire-preventive touch screen panel according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a view for explaining a schematic structure of a touch screen panel for preventing moire according to an embodiment of the present invention, and FIGS. 2 and 3 are views for explaining a moire phenomenon formed by a metal mesh structure And Figs. 4 and 5 are views for explaining moire prevention design criteria of a moire preventing touch screen panel according to an embodiment of the present invention.

The touch screen panel 100 according to an exemplary embodiment of the present invention is formed in a manner that a sensing electrode 120 is formed on a transparent substrate 110 in the form of a transparent film so that a touch operation can be sensed. ) Is formed of a metal mesh structure rather than an ITO material.

The active region AR is formed in the center portion of the transparent substrate 110 as shown in FIG. 1, and the inactive region NAR is formed along the periphery of the active region AR. Here, the active area AR refers to a region of the touch screen panel 30 where the user can touch the touching position using the body contact or the stylus pen. The inactive area NAR refers to a contact position sensed in the active area I.e., the area required to transmit the contact position sensing signal to the control chip.

A sensing electrode 120 is formed on the active region AR of the transparent substrate 110 to sense the user's contact position and a contact position signal sensed through the sensing electrode 120 is controlled on the non- An electrode wiring 130 for transfer to an electronic device such as a chip is formed.

The touch screen panel 100 according to an exemplary embodiment of the present invention may be configured such that the sensing electrode 120 formed in the active region AR of the transparent substrate 110 is not formed of a transparent electrode material such as an ITO material, Metal mesh structure. Also, the electrode wiring 130 formed in the inactive region NAR may be formed in a metal mesh structure in the same manner as the sensing electrode 120.

The sensing electrode 120 may be formed to have a metal mesh structure through a nanoimprint process and the electrode wiring 130 may be formed simultaneously with the sensing electrode 120 through a nanoimprint process.

The sensing electrode 120 may include a plurality of first conductive lines 121 parallel to each other in one direction and a plurality of second conductive lines 121 parallel to each other in a direction intersecting the first conductive lines 121. [ 122 intersect with each other to form a mesh structure.

The sensing electrode 120 thus formed can be patterned with a very fine line width of several nanometers in the nature of the nanoimprint process. When the sensing electrode 120 is formed with a very fine line width of several nanometers, the sensing electrode 120 can be visually distinguished And shows the same degree of transmittance as the transparent electrode material. Accordingly, when the sensing electrode 120 is formed with a mesh pattern having a fine line width, a transparent electrode of a new type replacing a transparent electrode material such as ITO can be formed.

According to such a structure, the touch screen panel 100 according to an exemplary embodiment of the present invention may include a metal mesh sensing electrode 120 through a nanoimprint process without using a separate transparent electrode material such as ITO as a sensing electrode, It is possible to simplify the process, reduce the manufacturing cost, and replace the ITO material which is not smoothly supplied with the material.

However, when the sensing electrode 120 is formed in such a mesh pattern structure, the same pattern is repeated on the structure thereof, which causes a problem that moire phenomenon occurs in the sensing electrode 120. The moire phenomenon is a natural interference phenomenon that is generally formed when the periodic patterns are repeated, and is observed in the form of a wave-like curve, a ripple, or the like.

When the touch screen panel is used in combination with a separate image display device, such a moire phenomenon may degrade the image quality of the image generated from the image display device. Therefore, the moire phenomenon caused by the touch screen panel may be minimized or prevented .

That is, since the line widths of the first conductive line 121 and the second conductive line 122 forming the mesh structure are very thin in nano units, the lines 121 and 122 themselves are not visually recognized. However, The moiré phenomenon due to the repetition of the pattern can be caused by a phenomenon of light interference independently of the visibility problem of the lines 121 and 122 themselves.

In recent years, various attempts have been made to prevent such a moiré phenomenon. These studies are generally conducted in a way to prevent the moire phenomenon by adjusting the line width and pitch of the conductive lines or adjusting the crossing angle. In other words, it is limited to experimental research that finds optimum layout condition experimentally by simply changing line width or crossing angle of conductive line. In this experimental research method, only the moiré prevention result is obtained only for a specific condition, The result is also not always correct.

The present applicant has prepared a design standard to prevent the moire phenomenon from occurring.

As shown in FIGS. 2 and 3, when the first conductive line 121 and the second conductive line 122 intersect with each other at the same line width to form a mesh structure, the moire phenomenon occurs when the dark and stepped portions alternately repeat cyclically Even if the line width or the crossing angle of the first conductive line 121 and the second conductive line 122 is changed, it is always displayed in most cases.

That is, as shown in FIGS. 2A and 2B, when the first conductive line 121 and the second conductive line 122 having the same line width cross each other, the dark region and the bright region Z1 and Z2, Moire phenomenon occurs repeatedly in this alternating form. This is because even if the crossing angles of the first conductive line 121 and the second conductive line 122 are different, for example, 20 ° or 45 ° is formed The shape of the dark and bright areas Z1 and Z2 is different, and the pattern is similarly displayed. Even when the line widths of the first conductive line 121 and the second conductive line 122 are changed as shown in FIGS. 3A and 3B, similarly, the dark areas and the bright areas Z1, And the pattern is alternately repeated, and the moire phenomenon occurs.

When the plurality of conductive lines intersect with each other in the mesh structure, the moire phenomenon appears as a repetitive form of the dark and bright regions (Z1, Z2). In this case, the area of the imprinted conductive line in the actual dark region is larger than the bright region .

That is, the moire phenomenon due to the intersection of the plurality of conductive lines appears as a repetitive form of the dark and bright regions Z1 and Z2 because the ratio of the area where the conductive lines are formed in the specific region on the arrangement structure of the plurality of conductive lines Since the conductive line appears relatively high in the specific region, the specific region appears relatively dark and the remaining region appears relatively bright, and moire phenomenon occurs in a form in which they are repeated.

Accordingly, the touch screen panel for preventing moire according to the present invention is a design standard for preventing the moire phenomenon. Unlike the conventional method in which only the line width or the intersection angle of the conductive line is limited, the intersection area To provide a design standard that can prevent the moire phenomenon.

The plurality of conductive lines 121 and 122 each form a plurality of intersecting areas. Since the overall moire phenomenon occurs according to the area characteristics of the intersecting areas, the overall moire phenomenon is generated through the design criteria for each intersecting area. .

Figs. 4 and 5 are views for explaining these design criteria.

First, the first conductive line 121 and the second conductive line 122 according to an embodiment of the present invention are formed to have the same line width as shown in FIG. 4 and are disposed so as to intersect with each other, the crossing region always has the shape of a diamond 123.

Two diametrically opposed diagonal lines X and Y exist in the region of the diamond 123 which is a crossing region. The diagonal lines X and Y are relatively longer than the remaining one, or the same diagonal line is referred to as a first diagonal line X, Is referred to as a second diagonal line (Y). An imaginary extension line Y1 extending from the both ends of the first diagonal line X in the direction perpendicular to the first diagonal line X and an outer boundary surface between the first conductive line 121 and the second conductive line 122 Let B be the distance between the two intersecting points (B1, B2). Similarly, an imaginary extension line X1 extending in the direction perpendicular to the second diagonal line Y at both ends of the second diagonal line Y having a short length and a virtual extension line X1 extending in the direction of the first conductive line 121 and the second conductive line 122 Let C be the distance between two points (C1, C2) where the outer boundary surfaces intersect. At this time, the intersection angle? Between the first conductive line 121 and the second conductive line 122 can be expressed by two angles? And? 180? Angle, and the intersection angle is indicated by?.

At this time, the touch screen panel 100 according to the present invention is configured such that when the line width W and the intersection angle? Of the first conductive line 121 and the second conductive line 122 are set, By setting in consideration of the length, the moire phenomenon can be prevented.

More specifically, the first conductive line 121 and the second conductive line 122 are formed to have the same line width, and the line width W of the first conductive line 121 and the second conductive line 122, The intersection angle? Is set such that the length of the first diagonal line X is equal to or less than a preset reference value, thereby preventing the moire phenomenon.

On the other hand, the line width W and the intersection angle? Of the first conductive line 121 and the second conductive line 122 are set such that the length of the first diagonal line X is larger than a preset reference value, Two imaginary extension lines Y1 extending in the direction perpendicular to the first diagonal line X from both ends of the first conductive line 121 and the second conductive line 122 intersect each other, And the distance B between the points B1 and B2 is equal to or smaller than the reference value.

The dark and bright regions Z1 and Z2 shown in FIGS. 2 and 3 are formed in a unit cell region U (hereinafter, referred to as " U ") formed by the intersection region of the first conductive line 121 and the second conductive line 122, ). If the conductive lines 121 and 122 are formed on the basis of the degree that the conductive lines 121 and 122 are not visible in the unit cell region U, dark and bright region differences do not occur as a whole, and thus the moire phenomenon does not occur .

That is, since the area of the conductive line including the rhombic area 123, which is a crossing area, relatively increases in the unit cell area U, the possibility that the conductive line is visually recognized through the naked eye of the user is high in this area, The moiré phenomenon can be generated. Therefore, it is preferable that the conductive line is not visually recognized in the unit cell region U including the intersecting region, so that dark and bright region differences do not occur as a whole, thereby preventing the occurrence of moire.

The line width W and the crossing angle? Of the first conductive line 121 and the second conductive line 122 are set so that the conductive line is not visible in the unit cell region U, This is because the distance B between the imaginary extension line Y1 perpendicular to the first diagonal line X and the intersection of the outer boundary surfaces of the first and second conductive lines 121 and 122 according to an embodiment of the present invention is Is set to be equal to or less than a preset reference value.

In this case, the reference value may vary depending on the use of the touch screen panel. In general, considering the utilization of the touch screen panel 100, the position of the user's eyes is positioned at a distance of about 20 to 30 cm from the touch screen panel. The threshold line width at which the conductive line is not visible at the separation distance can be set as the reference value.

Experiments to obtain these reference values have shown that many people can only see visibility if the line width of the conductive line is less than 5 μm at a distance of about 20 cm from the touch screen panel, I could. The results of these experiments can be found in, for example, Korean Patent Laid-Open No. 10-2013-33993. That is, the critical line width of the conductive lines viewed by the user may be, for example, 5 占 퐉 based on a 20 cm separation distance.

Therefore, in order for the conductive line to be visible in the unit cell region U described above, the length of the conductive line must be at least 5 μm and the line width must be at least 5 μm or more. Of course, here, 5 μm is a reference value based on a separation distance of 20 cm. In this case, when the first diagonal line X is in the longitudinal direction, the line width may be B. The length of the first diagonal line X is, for example, 5 μm or more, The line width B at both ends of the first diagonal line X is equal to or larger than the reference value. Therefore, in an embodiment of the present invention, when the length of the first diagonal line X is equal to or larger than the reference value, the length of the line width B at the both ends of the first diagonal line X becomes equal to or smaller than the reference value, And the line width W and the intersection angle of the second conductive line 122 are set.

5, when the first conductive line 121 and the second conductive line 122 have the same line width W and intersect at an angle of? Intersection, the length of the first diagonal line X And the line width B at both ends of the first diagonal line X are expressed by the following equations.

<Formula>

B = 2W / cos (? / 2)

X = B / (2 * tan (? / 2))

The first diagonal line X and the maximum line width B at both ends of the first diagonal line X and the second diagonal line B according to this formula all have an angle of intersection with the line width W of the first conductive line 121 and the second conductive line 122 The line width W of the first conductive line 121 and the intersection angle? Of the second conductive line 122 can be represented by the first diagonal line X and the maximum line width at both ends thereof (B) as a variable.

For example, when the line width W of the first conductive line 121 and the second conductive line 122 is determined to be a specific value, for example, the line width W is determined to be 1.5 占 퐉 , The crossing angle? Can be set to a range in which the maximum line width B at both ends of the first diagonal line X is 5 占 퐉 or less. Similarly, in a state where the intersection angle [theta] of the first conductive line 121 and the second conductive line 122 is determined at a specific angle, for example, in a state where the angle is determined to be 70 degrees, W can be set to a range in which the maximum line width B at both ends of the first diagonal line X is 5 占 퐉 or less.

In this way, Applicants have made various samples so that various line widths are formed with respect to the maximum line width (B) at both ends of the first diagonal line (X) to test whether the moire phenomenon is visually observed. As a result, Moire phenomenon was found when B was above the reference value of 5 mu m or more, and moire phenomenon was not recognized when it was below the reference value of 5 mu m or more.

On the other hand, it is not necessary to consider whether or not the length of the first diagonal line X is larger than the reference value. That is, when the length of the first diagonal line X is larger than the reference value, the maximum line width B at both ends of the first diagonal line X is set to be equal to or less than the reference value, Is less than the reference value, it is not necessary to satisfy such a criterion and the user is not recognized. Therefore, the criterion need not be considered.

According to this principle, the line width W and the intersection angle? Of the first conductive line 121 and the second conductive line 122 are set such that the length of the first diagonal line X is merely equal to or smaller than the reference value Can be set. If the length of the first diagonal line X is equal to or smaller than the reference value, even if the maximum line width B at both ends of the first diagonal line X is greater than the reference value, the first diagonal line X can not be visually recognized. can do.

At this time, if the length of the first diagonal line X is less than or equal to the reference value, the length of the second diagonal line Y is shorter than or equal to the reference value, of course, is less than the reference value.

Likewise, if the length of the maximum line width B at both ends of the first diagonal line X is equal to or smaller than the reference value, the length of the second diagonal line Y shorter in length than the second diagonal line Y is also smaller than the reference value. In particular, if the length of the second diagonal line Y is less than the reference value, even if the maximum line width C at both ends of the second diagonal line Y becomes equal to or larger than the reference value, Consideration of this is unnecessary.

The line width W and the intersection angle? Of the first conductive line 121 and the second conductive line 122 according to an embodiment of the present invention are set such that the length of the first diagonal line X is less than or equal to the reference value The maximum line width B at both ends of the first diagonal line X may be set to be equal to or smaller than the reference value when the length of the first diagonal line X is set larger than the reference value .

According to this structure, the moire phenomenon according to the repetitive pattern of the first conductive line 121 and the second conductive line 122 does not occur in the touch screen panel 100 according to the present invention.

FIG. 6 is a schematic view illustrating an overlapping structure of a black matrix pattern of a moire preventing touch screen panel and a separate image display device according to an embodiment of the present invention. FIG. 7 is a cross- FIG. 8 is a diagram for explaining a moire preventing design standard that can be generated in relation to a black matrix pattern of a touch screen panel. FIG.

1 to 5, a structure for preventing the moire phenomenon that is generated by the touch screen panel 100 itself by the conductive lines 121 and 122 formed on the touch screen panel 100 has been described. Hereinafter, the touch screen panel 100 will be described. A structure for preventing a moire phenomenon occurring in relation to the black matrix pattern 200 of the image display apparatus when used in combination with a separate image display apparatus (not shown) will be described.

In general, the touch screen panel 100 is coupled to a front surface of a separate image display device to enable a user to perform a touch operation. In this case, the image display device includes a plurality of pixels arranged in a predetermined pattern, . Examples of such a video display device include a liquid crystal display (LCD), a plasma display (PDP), and the like. In such image display devices, a black matrix pattern 200 is formed between pixels to block light between sub-elements indicating R, G, and B of a pixel and to hide wiring and the like.

The black matrix pattern 200 has a generally mesh structure as shown in FIG. 6, and has a line width wider than the line width W of the first and second conductive lines 121 and 122 of the touch screen panel 100 .

Accordingly, when the touch screen panel 100 is stacked on the front surface of the image display device, the black matrix pattern 200 of the image display device and the first and second The conductive lines 121 and 122 cross each other and generate another type of moire phenomenon.

The touch screen panel 100 according to an embodiment of the present invention is configured to prevent moiré phenomenon that may occur in relation to the black matrix pattern 200 when the display screen is laminated to such an image display device.

For this, the touch screen panel 100 is disposed so that the first and second conductive lines 121 and 122 are all located in a direction intersecting the black matrix pattern 200. In other words, any one of the first and second conductive lines 121 and 122 is disposed so as not to be parallel to the black matrix pattern 200.

In this state, the intersecting angles? And? Of the line width W of the first and second conductive lines 121 and 122 and the intersection of the first and second conductive lines 121 and 122 with the black matrix pattern 200, The length D of the short side forming the outer boundary surface of the black matrix pattern 200 in the area of the parallelogram 124 which is the intersection area of the first conductive line 121 or the second conductive line 122 and the black matrix pattern 200, Is set to be equal to or less than a preset reference value, moire phenomenon can be prevented.

That is, since the line widths of the first conductive line 121 and the second conductive line 122 and the black matrix pattern 200 are different from each other, the mutually intersecting regions are parallelograms 124, Shape.

At this time, the black matrix pattern 200 is formed to be relatively thicker than the line width W of the first and second conductive lines 121 and 122, and is formed to have a thickness that is visible to the user's eyes, that is, And has a line width. For example, as described above, when the distance is 20 cm or less at a distance of 5 μm or less, the user does not see it. The black matrix pattern 200 is generally formed thicker than this. For example, when the image display device is viewed at a distance from the front of the image display device, a fine black matrix pattern 200 can be observed.

As described above, the black matrix pattern 200 of the image display device itself has visibility and deteriorates the image quality of the image display device. When the touch screen panel 100 is stacked in this state, The first and second conductive lines 121 and 122 and the black matrix pattern 200 intersect with each other, so that the moire phenomenon may occur more severely.

Since the black matrix pattern 200 itself is visible to the user, it is possible to prevent the moire phenomenon occurring between the conductive lines 121 and 122 and the black matrix pattern 200 in the manner described in FIGS. 1 to 5 I can not. In this case, the moiré phenomenon occurs at the outer side of the outer boundary surface of the black matrix pattern 200 in the crossing region portion (parallelogram portion 124 region portion) where the first and second conductive lines 121 and 122 and the black matrix pattern 200 cross each other The region having a different visibility is generated. That is, in the region of the parallelogram 124 where the first and second conductive lines 121 and 122 and the black matrix pattern 200 cross each other, the length D of the short side forming the boundary of the black matrix pattern 200 ) Is a visible region, a moire phenomenon occurs.

Therefore, in the present invention, by setting the length D of the short side of the parallelogram 124 to be equal to or less than the reference value described above, for example, 5 m or less, a visible region outside the black matrix pattern 200 can be removed , Whereby the moire phenomenon is prevented.

The line width W of the first and second conductive lines 121 and 122 and the intersection angles? And? Between the line width W and the black matrix pattern 200 according to the present invention are set so that the parallelograms 124, The length D of the short side of the region is set to be equal to or smaller than the reference value. That is, the length D of the short sides of the parallelogram 124 is determined by the line width W of the first and second conductive lines 121 and 122 and the intersection angles? And? Between the line width W and the black matrix pattern 200 As a result, the moiré phenomenon can be prevented by designing these shapes in an appropriate range.

For example, if the line width of the black matrix pattern 200 is determined to be 10 mu m and the line width of the first and second conductive lines 121 and 122 is determined to be 1.5 mu m, The intersection angles? And? Can be set in an appropriate range so that the distance D is equal to or smaller than the reference value (for example, 5 占 퐉). Likewise, if the line width of the black matrix pattern 200 is determined to be 10 占 퐉 and the intersecting angles? And? Are determined to be 30 占 and 50 占, the length of the short side of the parallelogram 124 The line width W of the first and second conductive lines 121 and 122 can be set to an appropriate range such that the width D of the first conductive line 121 and the second conductive line 122 is equal to or less than a reference value (for example, 5 m).

The touch screen panel 100 according to an embodiment of the present invention can prevent a moiré phenomenon occurring in relation to the black matrix pattern 200 in this manner.

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications 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 intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

100: touch screen panel 110: transparent substrate
120: sensing electrode 121: first conductive line
122: second conductive line 123: rhombus
124: Parallelogram 130: Electrode wiring
200: black matrix pattern U: unit cell area
X: first diagonal line Y: second diagonal line

Claims (12)

A transparent substrate; And
A sensing electrode formed on the transparent substrate so as to sense a touch operation,
, The sensing electrode
A plurality of first conductive lines parallel to each other and a plurality of second conductive lines parallel to each other in a direction intersecting the first conductive lines cross each other to form a mesh structure,
The first conductive line and the second conductive line are formed to have the same line width so that the crossing regions form a rhombic shape,
The linewidth and crossing angle of the first conductive line and the second conductive line
Wherein the length of the first diagonal line is longer than the length of the other one of the two diagonal lines for the rhombus region which is the crossing region and the length of the first diagonal line is longer than a predetermined reference value, Wherein a distance between two imaginary extension lines intersecting the outer boundary surfaces of the first and second conductive lines is set to be equal to or less than the reference value.
delete delete The method according to claim 1,
Wherein the reference value is applied as a critical line width of a conductive line not visible through a human eye at a specific separation distance.
5. The method of claim 4,
Wherein the reference value is 5 占 퐉.
The method according to claim 1,
Wherein the first conductive line and the second conductive line are formed on the transparent substrate through a nanoimprint process.
The method according to claim 1,
The touch screen panel
The first conductive line and the second conductive line are coupled to a separate image display device having a black matrix pattern having a line width larger than the line width of the first and second conductive lines so that the first and second conductive lines intersect with the black matrix pattern Lt; / RTI &
A line width of the first and second conductive lines and a crossing angle at which the first and second conductive lines cross the black matrix pattern,
Wherein a length of a short side constituting an outer boundary surface of the black matrix pattern in the parallelogram region which is an intersection of the first conductive line and the second conductive line and the black matrix pattern is set to be equal to or less than a preset reference value. panel.
8. The method of claim 7,
Wherein the line width of the black matrix pattern formed on the image display device is larger than the reference value.
9. The method according to claim 7 or 8,
Wherein the reference value is 5 占 퐉.
A transparent substrate; And
A sensing electrode formed on the transparent substrate so as to sense a touch operation,
, The sensing electrode
A plurality of first conductive lines parallel to each other and a plurality of second conductive lines parallel to each other in a direction intersecting the first conductive lines cross each other to form a mesh structure,
The first conductive line and the second conductive line are formed to have the same line width so that the crossing regions form a rhombic shape,
Wherein a line width and a crossing angle of the first conductive line and the second conductive line are set based on an area size of the rhombic area which is an intersecting area.
11. The method of claim 10,
The linewidth and the intersection angle of the first conductive line and the second conductive line are set to be longer than the remaining one of the two diagonal lines for the rhombus region which is a mutual intersection region or the length of the same first diagonal line is set to be a predetermined reference value or less Wherein the moiré-resistant touch screen panel comprises a plurality of pixels.
11. The method of claim 10,
The touch screen panel
The first conductive line and the second conductive line are coupled to a separate image display device having a black matrix pattern having a line width larger than the line width of the first and the second conductive lines so that the first and second conductive lines intersect with the black matrix pattern Lt; / RTI &
A line width of the first and second conductive lines and a crossing angle at which the first and second conductive lines cross the black matrix pattern,
Wherein a length of a short side constituting an outer boundary surface of the black matrix pattern in a parallelogram region which is an intersection of the first conductive line and the second conductive line and the black matrix pattern is set to be equal to or less than a preset reference value. panel.

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